Desktop photo search (#174)

experimental/desktop_photo_search/.gitignore

@@ -0,0 +1,37 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Exceptions to above rules.
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

experimental/desktop_photo_search/.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 7caef218b55acac803aa67e7393e97f75ec70c5c
+  channel: master
+
+project_type: app

experimental/desktop_photo_search/README.md

@@ -0,0 +1,56 @@
+# Photo Search app
+
+This macOS application enables you to search [Unsplash](https://unsplash.com/)
+for photographs that interest you. To use it, you need to add an
+**Access Key** from [Unsplash API](https://unsplash.com/developers) to
+[unsplash_access_key.dart](lib/unsplash_access_key.dart).
+
+## A quick tour of the code
+
+This Flutter project builds a desktop application. It utilises the following
+desktop specific plugins:
+
+  - [file_choser] to enable the application user to select where to save a photo
+    from the Unsplash API.
+  - [menubar] for exposing Image Search functionality through the menu bar.
+  - [url_launcher_fde] and [url_launcher] plugin, which are used to open external links.
+
+The Unsplash API client entry point is in the [Unsplash] class, and is built
+atop [http], [built_value] and [built_collection] for JSON Rest API access.
+
+The [DataTreeNode] and widget family, along with the [Split] widget capture
+desktop file explorer master/detail view idioms.
+
+## macOS Network and File entitlements
+
+To access the network, macOS requires applications enable the
+[com.apple.security.network.client entitlement][macOS-client]. For this
+sample, this entitlement is required to access the Unsplash API.
+
+Likewise, to save a Photo to the local file system using the `file_choser` plugin requires the
+[com.apple.security.files.user-selected.read-write entitlement][macOS-read-write].
+
+Please see [macOS Signing and Security][macOS-security] for more detail.
+
+## Flutter Desktop is not in Flutter Stable Release Channel
+
+This sample is an initial preview, intended to enable developers to preview what is
+under development. As such, it is currently only available for use on the `master` channel
+of Flutter. Please see [Flutter build release channels][flutter_channels] for more detail,
+and how to switch between Flutter release channels.
+
+[DataTreeNode]: lib/src/widgets/data_tree.dart
+[Split]: lib/src/widgets/split.dart
+[Unsplash]: lib/src/unsplash/unsplash.dart
+
+[built_collection]: https://pub.dev/packages/built_collection
+[built_value]: https://pub.dev/packages/built_value
+[file_choser]: https://github.com/google/flutter-desktop-embedding/tree/master/plugins/file_chooser
+[flutter_channels]: https://github.com/flutter/flutter/wiki/Flutter-build-release-channels
+[http]: https://pub.dev/packages/http
+[macOS-client]: https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_security_network_client
+[macOS-read-write]: https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_security_files_user-selected_read-write
+[macOS-security]: https://github.com/google/flutter-desktop-embedding/blob/master/macOS-Security.md
+[menubar]: https://github.com/google/flutter-desktop-embedding/tree/master/plugins/menubar
+[url_launcher]: https://pub.dev/packages/url_launcher
+[url_launcher_fde]: https://github.com/google/flutter-desktop-embedding/tree/master/plugins/flutter_plugins/url_launcher_fde

experimental/desktop_photo_search/analysis_options.yaml

@@ -0,0 +1,30 @@
+include: package:pedantic/analysis_options.1.8.0.yaml
+
+analyzer:
+  strong-mode:
+    implicit-casts: false
+    implicit-dynamic: false
+
+linter:
+  rules:
+    - avoid_types_on_closure_parameters
+    - avoid_void_async
+    - await_only_futures
+    - camel_case_types
+    - cancel_subscriptions
+    - close_sinks
+    - constant_identifier_names
+    - control_flow_in_finally
+    - empty_statements
+    - hash_and_equals
+    - implementation_imports
+    - non_constant_identifier_names
+    - package_api_docs
+    - package_names
+    - package_prefixed_library_names
+    - test_types_in_equals
+    - throw_in_finally
+    - unnecessary_brace_in_string_interps
+    - unnecessary_getters_setters
+    - unnecessary_new
+    - unnecessary_statements

experimental/desktop_photo_search/build.yaml

@@ -0,0 +1,15 @@
+targets:
+  $default:
+    builders:
+      built_value_generator|built_value:
+        enabled: true
+
+builders:
+  built_value:
+    target: ":built_value_generator"
+    import: "package:built_value_generator/builder.dart"
+    builder_factories: ["builtValue"]
+    build_extensions: {".dart": [".built_value.g.part"]}
+    auto_apply: dependents
+    build_to: cache
+    applies_builders: ["source_gen|combining_builder"]

experimental/desktop_photo_search/lib/main.dart

@@ -0,0 +1,122 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:file_chooser/file_chooser.dart' as file_choser;
+import 'package:logging/logging.dart';
+import 'package:menubar/menubar.dart' as menubar;
+import 'package:meta/meta.dart';
+import 'package:provider/provider.dart';
+
+import 'src/model/photo_search_model.dart';
+import 'src/unsplash/unsplash.dart';
+import 'src/widgets/data_tree.dart';
+import 'src/widgets/photo_details.dart';
+import 'src/widgets/photo_search_dialog.dart';
+import 'src/widgets/split.dart';
+import 'unsplash_access_key.dart';
+
+void main() {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((rec) {
+    // ignore: avoid_print
+    print('${rec.loggerName} ${rec.level.name}: ${rec.time}: ${rec.message}');
+  });
+
+  if (unsplashAccessKey.isEmpty) {
+    Logger('main').severe('Unsplash Access Key is required. '
+        'Please add to `lib/unsplash_access_key.dart`.');
+    exit(1);
+  }
+
+  runApp(
+    ChangeNotifierProvider<PhotoSearchModel>(
+      create: (context) => PhotoSearchModel(
+        Unsplash(accessKey: unsplashAccessKey),
+      ),
+      child: UnsplashSearchApp(),
+    ),
+  );
+}
+
+class UnsplashSearchApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Photo Search',
+      theme: ThemeData(
+        primarySwatch: Colors.orange,
+      ),
+      home: const UnsplashHomePage(title: 'Photo Search'),
+    );
+  }
+}
+
+class UnsplashHomePage extends StatelessWidget {
+  const UnsplashHomePage({@required this.title});
+  final String title;
+
+  @override
+  Widget build(BuildContext context) {
+    final photoSearchModel = Provider.of<PhotoSearchModel>(context);
+    menubar.setApplicationMenu([
+      menubar.Submenu(label: 'Search', children: [
+        menubar.MenuItem(
+          label: 'Search ...',
+          onClicked: () {
+            showDialog<void>(
+              context: context,
+              builder: (context) =>
+                  PhotoSearchDialog(photoSearchModel.addSearch),
+            );
+          },
+        ),
+      ])
+    ]);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(title),
+      ),
+      body: photoSearchModel.entries.isNotEmpty
+          ? Split(
+              axis: Axis.horizontal,
+              initialFirstFraction: 0.4,
+              firstChild: DataTree(photoSearchModel.entries),
+              secondChild: Center(
+                child: photoSearchModel.selectedPhoto != null
+                    ? PhotoDetails(
+                        photo: photoSearchModel.selectedPhoto,
+                        onPhotoSave: (photo) async {
+                          final result = await file_choser.showSavePanel(
+                            suggestedFileName: '${photo.id}.jpg',
+                            allowedFileTypes: ['jpg'],
+                          );
+                          if (!result.canceled) {
+                            final bytes =
+                                await photoSearchModel.download(photo: photo);
+                            await File(result.paths[0]).writeAsBytes(bytes);
+                          }
+                        },
+                      )
+                    : Container(),
+              ),
+            )
+          : const Center(
+              child: Text('Search for Photos using the Fab button'),
+            ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: () => showDialog<void>(
+          context: context,
+          builder: (context) => PhotoSearchDialog(photoSearchModel.addSearch),
+        ),
+        tooltip: 'Search for a photo',
+        child: Icon(Icons.search),
+      ),
+    );
+  }
+}

experimental/desktop_photo_search/lib/src/model/photo_search_model.dart

@@ -0,0 +1,72 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:typed_data';
+
+import 'package:flutter/foundation.dart';
+import 'package:meta/meta.dart';
+
+import '../unsplash/photo.dart';
+import '../unsplash/unsplash.dart';
+import '../widgets/data_tree.dart' show Entry;
+import 'search.dart';
+
+class _PhotoEntry extends Entry {
+  _PhotoEntry(this._photo, this._model) : super('Photo by ${_photo.user.name}');
+
+  final Photo _photo;
+  final PhotoSearchModel _model;
+
+  @override
+  bool get isSelected => false;
+
+  @override
+  set isSelected(bool selected) {
+    _model._setSelectedPhoto(_photo);
+  }
+}
+
+class _SearchEntry extends Entry {
+  _SearchEntry(String query, List<Photo> photos, PhotoSearchModel model)
+      : super(
+          query,
+          List<Entry>.unmodifiable(
+            photos.map<Entry>((photo) => _PhotoEntry(photo, model)),
+          ),
+        );
+}
+
+class PhotoSearchModel extends ChangeNotifier {
+  PhotoSearchModel(this._client);
+  final Unsplash _client;
+
+  List<Entry> get entries => List.unmodifiable(_entries);
+  final List<Entry> _entries = <Entry>[];
+
+  Photo get selectedPhoto => _selectedPhoto;
+  void _setSelectedPhoto(Photo photo) {
+    _selectedPhoto = photo;
+    notifyListeners();
+  }
+
+  Photo _selectedPhoto;
+
+  Future<void> addSearch(String query) async {
+    final result = await _client.searchPhotos(
+      query: query,
+      orientation: SearchPhotosOrientation.portrait,
+    );
+    final search = Search((s) {
+      s
+        ..query = query
+        ..results.addAll(result.results);
+    });
+
+    _entries.add(_SearchEntry(query, search.results.toList(), this));
+    notifyListeners();
+  }
+
+  Future<Uint8List> download({@required Photo photo}) =>
+      _client.download(photo);
+}

experimental/desktop_photo_search/lib/src/model/search.dart

@@ -0,0 +1,36 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_collection/built_collection.dart';
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+import '../unsplash/photo.dart';
+
+part 'search.g.dart';
+
+abstract class Search implements Built<Search, SearchBuilder> {
+  factory Search([void Function(SearchBuilder) updates]) = _$Search;
+  Search._();
+
+  @BuiltValueField(wireName: 'query')
+  String get query;
+
+  @BuiltValueField(wireName: 'results')
+  BuiltList<Photo> get results;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Search.serializer, this));
+  }
+
+  static Search fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Search.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Search> get serializer => _$searchSerializer;
+}

experimental/desktop_photo_search/lib/src/model/search.g.dart

@@ -0,0 +1,167 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'search.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Search> _$searchSerializer = new _$SearchSerializer();
+
+class _$SearchSerializer implements StructuredSerializer<Search> {
+  @override
+  final Iterable<Type> types = const [Search, _$Search];
+  @override
+  final String wireName = 'Search';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Search object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'query',
+      serializers.serialize(object.query,
+          specifiedType: const FullType(String)),
+      'results',
+      serializers.serialize(object.results,
+          specifiedType:
+              const FullType(BuiltList, const [const FullType(Photo)])),
+    ];
+
+    return result;
+  }
+
+  @override
+  Search deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new SearchBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'query':
+          result.query = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'results':
+          result.results.replace(serializers.deserialize(value,
+                  specifiedType:
+                      const FullType(BuiltList, const [const FullType(Photo)]))
+              as BuiltList<dynamic>);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Search extends Search {
+  @override
+  final String query;
+  @override
+  final BuiltList<Photo> results;
+
+  factory _$Search([void Function(SearchBuilder) updates]) =>
+      (new SearchBuilder()..update(updates)).build();
+
+  _$Search._({this.query, this.results}) : super._() {
+    if (query == null) {
+      throw new BuiltValueNullFieldError('Search', 'query');
+    }
+    if (results == null) {
+      throw new BuiltValueNullFieldError('Search', 'results');
+    }
+  }
+
+  @override
+  Search rebuild(void Function(SearchBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  SearchBuilder toBuilder() => new SearchBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Search && query == other.query && results == other.results;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc($jc(0, query.hashCode), results.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Search')
+          ..add('query', query)
+          ..add('results', results))
+        .toString();
+  }
+}
+
+class SearchBuilder implements Builder<Search, SearchBuilder> {
+  _$Search _$v;
+
+  String _query;
+  String get query => _$this._query;
+  set query(String query) => _$this._query = query;
+
+  ListBuilder<Photo> _results;
+  ListBuilder<Photo> get results =>
+      _$this._results ??= new ListBuilder<Photo>();
+  set results(ListBuilder<Photo> results) => _$this._results = results;
+
+  SearchBuilder();
+
+  SearchBuilder get _$this {
+    if (_$v != null) {
+      _query = _$v.query;
+      _results = _$v.results?.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Search other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Search;
+  }
+
+  @override
+  void update(void Function(SearchBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Search build() {
+    _$Search _$result;
+    try {
+      _$result = _$v ?? new _$Search._(query: query, results: results.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'results';
+        results.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'Search', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/serializers.dart

@@ -0,0 +1,27 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:built_value/serializer.dart';
+import 'package:built_value/standard_json_plugin.dart';
+import 'package:built_collection/built_collection.dart';
+
+import 'model/search.dart';
+import 'unsplash/api_error.dart';
+import 'unsplash/current_user_collections.dart';
+import 'unsplash/exif.dart';
+import 'unsplash/links.dart';
+import 'unsplash/location.dart';
+import 'unsplash/photo.dart';
+import 'unsplash/position.dart';
+import 'unsplash/search_photos_response.dart';
+import 'unsplash/tags.dart';
+import 'unsplash/urls.dart';
+import 'unsplash/user.dart';
+
+part 'serializers.g.dart';
+
+//add all of the built value types that require serialization
+@SerializersFor([Search, ApiError, Photo, SearchPhotosResponse])
+final Serializers serializers =
+    (_$serializers.toBuilder()..addPlugin(StandardJsonPlugin())).build();

experimental/desktop_photo_search/lib/src/serializers.g.dart

@@ -0,0 +1,44 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'serializers.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializers _$serializers = (new Serializers().toBuilder()
+      ..add(ApiError.serializer)
+      ..add(CurrentUserCollections.serializer)
+      ..add(Exif.serializer)
+      ..add(Links.serializer)
+      ..add(Location.serializer)
+      ..add(Photo.serializer)
+      ..add(Position.serializer)
+      ..add(Search.serializer)
+      ..add(SearchPhotosResponse.serializer)
+      ..add(Tags.serializer)
+      ..add(Urls.serializer)
+      ..add(User.serializer)
+      ..addBuilderFactory(
+          const FullType(BuiltList, const [const FullType(Photo)]),
+          () => new ListBuilder<Photo>())
+      ..addBuilderFactory(
+          const FullType(BuiltList, const [const FullType(Photo)]),
+          () => new ListBuilder<Photo>())
+      ..addBuilderFactory(
+          const FullType(BuiltList, const [const FullType(String)]),
+          () => new ListBuilder<String>())
+      ..addBuilderFactory(
+          const FullType(BuiltList, const [const FullType(Tags)]),
+          () => new ListBuilder<Tags>())
+      ..addBuilderFactory(
+          const FullType(
+              BuiltList, const [const FullType(CurrentUserCollections)]),
+          () => new ListBuilder<CurrentUserCollections>()))
+    .build();
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/api_error.dart

@@ -0,0 +1,33 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_collection/built_collection.dart';
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'api_error.g.dart';
+
+abstract class ApiError implements Built<ApiError, ApiErrorBuilder> {
+  factory ApiError([void Function(ApiErrorBuilder) updates]) = _$ApiError;
+
+  ApiError._();
+
+  @BuiltValueField(wireName: 'errors')
+  BuiltList<String> get errors;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(ApiError.serializer, this));
+  }
+
+  static ApiError fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        ApiError.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<ApiError> get serializer => _$apiErrorSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/api_error.g.dart

@@ -0,0 +1,148 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'api_error.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<ApiError> _$apiErrorSerializer = new _$ApiErrorSerializer();
+
+class _$ApiErrorSerializer implements StructuredSerializer<ApiError> {
+  @override
+  final Iterable<Type> types = const [ApiError, _$ApiError];
+  @override
+  final String wireName = 'ApiError';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, ApiError object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'errors',
+      serializers.serialize(object.errors,
+          specifiedType:
+              const FullType(BuiltList, const [const FullType(String)])),
+    ];
+
+    return result;
+  }
+
+  @override
+  ApiError deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new ApiErrorBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'errors':
+          result.errors.replace(serializers.deserialize(value,
+                  specifiedType:
+                      const FullType(BuiltList, const [const FullType(String)]))
+              as BuiltList<dynamic>);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$ApiError extends ApiError {
+  @override
+  final BuiltList<String> errors;
+
+  factory _$ApiError([void Function(ApiErrorBuilder) updates]) =>
+      (new ApiErrorBuilder()..update(updates)).build();
+
+  _$ApiError._({this.errors}) : super._() {
+    if (errors == null) {
+      throw new BuiltValueNullFieldError('ApiError', 'errors');
+    }
+  }
+
+  @override
+  ApiError rebuild(void Function(ApiErrorBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  ApiErrorBuilder toBuilder() => new ApiErrorBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is ApiError && errors == other.errors;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(0, errors.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('ApiError')..add('errors', errors))
+        .toString();
+  }
+}
+
+class ApiErrorBuilder implements Builder<ApiError, ApiErrorBuilder> {
+  _$ApiError _$v;
+
+  ListBuilder<String> _errors;
+  ListBuilder<String> get errors =>
+      _$this._errors ??= new ListBuilder<String>();
+  set errors(ListBuilder<String> errors) => _$this._errors = errors;
+
+  ApiErrorBuilder();
+
+  ApiErrorBuilder get _$this {
+    if (_$v != null) {
+      _errors = _$v.errors?.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(ApiError other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$ApiError;
+  }
+
+  @override
+  void update(void Function(ApiErrorBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$ApiError build() {
+    _$ApiError _$result;
+    try {
+      _$result = _$v ?? new _$ApiError._(errors: errors.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'errors';
+        errors.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'ApiError', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/current_user_collections.dart

@@ -0,0 +1,49 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'current_user_collections.g.dart';
+
+abstract class CurrentUserCollections
+    implements Built<CurrentUserCollections, CurrentUserCollectionsBuilder> {
+  factory CurrentUserCollections(
+          [void Function(CurrentUserCollectionsBuilder) updates]) =
+      _$CurrentUserCollections;
+
+  CurrentUserCollections._();
+
+  @BuiltValueField(wireName: 'id')
+  int get id;
+
+  @nullable
+  @BuiltValueField(wireName: 'title')
+  String get title;
+
+  @nullable
+  @BuiltValueField(wireName: 'published_at')
+  String get publishedAt;
+
+  @nullable
+  @BuiltValueField(wireName: 'updated_at')
+  String get updatedAt;
+
+  String toJson() {
+    return json.encode(
+        serializers.serializeWith(CurrentUserCollections.serializer, this));
+  }
+
+  static CurrentUserCollections fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        CurrentUserCollections.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<CurrentUserCollections> get serializer =>
+      _$currentUserCollectionsSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/current_user_collections.g.dart

@@ -0,0 +1,208 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'current_user_collections.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<CurrentUserCollections> _$currentUserCollectionsSerializer =
+    new _$CurrentUserCollectionsSerializer();
+
+class _$CurrentUserCollectionsSerializer
+    implements StructuredSerializer<CurrentUserCollections> {
+  @override
+  final Iterable<Type> types = const [
+    CurrentUserCollections,
+    _$CurrentUserCollections
+  ];
+  @override
+  final String wireName = 'CurrentUserCollections';
+
+  @override
+  Iterable<Object> serialize(
+      Serializers serializers, CurrentUserCollections object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'id',
+      serializers.serialize(object.id, specifiedType: const FullType(int)),
+    ];
+    if (object.title != null) {
+      result
+        ..add('title')
+        ..add(serializers.serialize(object.title,
+            specifiedType: const FullType(String)));
+    }
+    if (object.publishedAt != null) {
+      result
+        ..add('published_at')
+        ..add(serializers.serialize(object.publishedAt,
+            specifiedType: const FullType(String)));
+    }
+    if (object.updatedAt != null) {
+      result
+        ..add('updated_at')
+        ..add(serializers.serialize(object.updatedAt,
+            specifiedType: const FullType(String)));
+    }
+    return result;
+  }
+
+  @override
+  CurrentUserCollections deserialize(
+      Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new CurrentUserCollectionsBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'id':
+          result.id = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'title':
+          result.title = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'published_at':
+          result.publishedAt = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'updated_at':
+          result.updatedAt = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$CurrentUserCollections extends CurrentUserCollections {
+  @override
+  final int id;
+  @override
+  final String title;
+  @override
+  final String publishedAt;
+  @override
+  final String updatedAt;
+
+  factory _$CurrentUserCollections(
+          [void Function(CurrentUserCollectionsBuilder) updates]) =>
+      (new CurrentUserCollectionsBuilder()..update(updates)).build();
+
+  _$CurrentUserCollections._(
+      {this.id, this.title, this.publishedAt, this.updatedAt})
+      : super._() {
+    if (id == null) {
+      throw new BuiltValueNullFieldError('CurrentUserCollections', 'id');
+    }
+  }
+
+  @override
+  CurrentUserCollections rebuild(
+          void Function(CurrentUserCollectionsBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  CurrentUserCollectionsBuilder toBuilder() =>
+      new CurrentUserCollectionsBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is CurrentUserCollections &&
+        id == other.id &&
+        title == other.title &&
+        publishedAt == other.publishedAt &&
+        updatedAt == other.updatedAt;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc($jc($jc(0, id.hashCode), title.hashCode), publishedAt.hashCode),
+        updatedAt.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('CurrentUserCollections')
+          ..add('id', id)
+          ..add('title', title)
+          ..add('publishedAt', publishedAt)
+          ..add('updatedAt', updatedAt))
+        .toString();
+  }
+}
+
+class CurrentUserCollectionsBuilder
+    implements Builder<CurrentUserCollections, CurrentUserCollectionsBuilder> {
+  _$CurrentUserCollections _$v;
+
+  int _id;
+  int get id => _$this._id;
+  set id(int id) => _$this._id = id;
+
+  String _title;
+  String get title => _$this._title;
+  set title(String title) => _$this._title = title;
+
+  String _publishedAt;
+  String get publishedAt => _$this._publishedAt;
+  set publishedAt(String publishedAt) => _$this._publishedAt = publishedAt;
+
+  String _updatedAt;
+  String get updatedAt => _$this._updatedAt;
+  set updatedAt(String updatedAt) => _$this._updatedAt = updatedAt;
+
+  CurrentUserCollectionsBuilder();
+
+  CurrentUserCollectionsBuilder get _$this {
+    if (_$v != null) {
+      _id = _$v.id;
+      _title = _$v.title;
+      _publishedAt = _$v.publishedAt;
+      _updatedAt = _$v.updatedAt;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(CurrentUserCollections other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$CurrentUserCollections;
+  }
+
+  @override
+  void update(void Function(CurrentUserCollectionsBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$CurrentUserCollections build() {
+    final _$result = _$v ??
+        new _$CurrentUserCollections._(
+            id: id,
+            title: title,
+            publishedAt: publishedAt,
+            updatedAt: updatedAt);
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/exif.dart

@@ -0,0 +1,53 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'exif.g.dart';
+
+abstract class Exif implements Built<Exif, ExifBuilder> {
+  factory Exif([void Function(ExifBuilder) updates]) = _$Exif;
+
+  Exif._();
+
+  @nullable
+  @BuiltValueField(wireName: 'make')
+  String get make;
+
+  @nullable
+  @BuiltValueField(wireName: 'model')
+  String get model;
+
+  @nullable
+  @BuiltValueField(wireName: 'exposure_time')
+  String get exposureTime;
+
+  @nullable
+  @BuiltValueField(wireName: 'aperture')
+  String get aperture;
+
+  @nullable
+  @BuiltValueField(wireName: 'focal_length')
+  String get focalLength;
+
+  @nullable
+  @BuiltValueField(wireName: 'iso')
+  int get iso;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Exif.serializer, this));
+  }
+
+  static Exif fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Exif.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Exif> get serializer => _$exifSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/exif.g.dart

@@ -0,0 +1,246 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'exif.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Exif> _$exifSerializer = new _$ExifSerializer();
+
+class _$ExifSerializer implements StructuredSerializer<Exif> {
+  @override
+  final Iterable<Type> types = const [Exif, _$Exif];
+  @override
+  final String wireName = 'Exif';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Exif object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[];
+    if (object.make != null) {
+      result
+        ..add('make')
+        ..add(serializers.serialize(object.make,
+            specifiedType: const FullType(String)));
+    }
+    if (object.model != null) {
+      result
+        ..add('model')
+        ..add(serializers.serialize(object.model,
+            specifiedType: const FullType(String)));
+    }
+    if (object.exposureTime != null) {
+      result
+        ..add('exposure_time')
+        ..add(serializers.serialize(object.exposureTime,
+            specifiedType: const FullType(String)));
+    }
+    if (object.aperture != null) {
+      result
+        ..add('aperture')
+        ..add(serializers.serialize(object.aperture,
+            specifiedType: const FullType(String)));
+    }
+    if (object.focalLength != null) {
+      result
+        ..add('focal_length')
+        ..add(serializers.serialize(object.focalLength,
+            specifiedType: const FullType(String)));
+    }
+    if (object.iso != null) {
+      result
+        ..add('iso')
+        ..add(serializers.serialize(object.iso,
+            specifiedType: const FullType(int)));
+    }
+    return result;
+  }
+
+  @override
+  Exif deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new ExifBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'make':
+          result.make = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'model':
+          result.model = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'exposure_time':
+          result.exposureTime = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'aperture':
+          result.aperture = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'focal_length':
+          result.focalLength = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'iso':
+          result.iso = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Exif extends Exif {
+  @override
+  final String make;
+  @override
+  final String model;
+  @override
+  final String exposureTime;
+  @override
+  final String aperture;
+  @override
+  final String focalLength;
+  @override
+  final int iso;
+
+  factory _$Exif([void Function(ExifBuilder) updates]) =>
+      (new ExifBuilder()..update(updates)).build();
+
+  _$Exif._(
+      {this.make,
+      this.model,
+      this.exposureTime,
+      this.aperture,
+      this.focalLength,
+      this.iso})
+      : super._();
+
+  @override
+  Exif rebuild(void Function(ExifBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  ExifBuilder toBuilder() => new ExifBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Exif &&
+        make == other.make &&
+        model == other.model &&
+        exposureTime == other.exposureTime &&
+        aperture == other.aperture &&
+        focalLength == other.focalLength &&
+        iso == other.iso;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc(
+            $jc(
+                $jc($jc($jc(0, make.hashCode), model.hashCode),
+                    exposureTime.hashCode),
+                aperture.hashCode),
+            focalLength.hashCode),
+        iso.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Exif')
+          ..add('make', make)
+          ..add('model', model)
+          ..add('exposureTime', exposureTime)
+          ..add('aperture', aperture)
+          ..add('focalLength', focalLength)
+          ..add('iso', iso))
+        .toString();
+  }
+}
+
+class ExifBuilder implements Builder<Exif, ExifBuilder> {
+  _$Exif _$v;
+
+  String _make;
+  String get make => _$this._make;
+  set make(String make) => _$this._make = make;
+
+  String _model;
+  String get model => _$this._model;
+  set model(String model) => _$this._model = model;
+
+  String _exposureTime;
+  String get exposureTime => _$this._exposureTime;
+  set exposureTime(String exposureTime) => _$this._exposureTime = exposureTime;
+
+  String _aperture;
+  String get aperture => _$this._aperture;
+  set aperture(String aperture) => _$this._aperture = aperture;
+
+  String _focalLength;
+  String get focalLength => _$this._focalLength;
+  set focalLength(String focalLength) => _$this._focalLength = focalLength;
+
+  int _iso;
+  int get iso => _$this._iso;
+  set iso(int iso) => _$this._iso = iso;
+
+  ExifBuilder();
+
+  ExifBuilder get _$this {
+    if (_$v != null) {
+      _make = _$v.make;
+      _model = _$v.model;
+      _exposureTime = _$v.exposureTime;
+      _aperture = _$v.aperture;
+      _focalLength = _$v.focalLength;
+      _iso = _$v.iso;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Exif other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Exif;
+  }
+
+  @override
+  void update(void Function(ExifBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Exif build() {
+    final _$result = _$v ??
+        new _$Exif._(
+            make: make,
+            model: model,
+            exposureTime: exposureTime,
+            aperture: aperture,
+            focalLength: focalLength,
+            iso: iso);
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/links.dart

@@ -0,0 +1,45 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'links.g.dart';
+
+abstract class Links implements Built<Links, LinksBuilder> {
+  factory Links([void Function(LinksBuilder) updates]) = _$Links;
+
+  Links._();
+
+  @nullable
+  @BuiltValueField(wireName: 'self')
+  String get self;
+
+  @nullable
+  @BuiltValueField(wireName: 'html')
+  String get html;
+
+  @nullable
+  @BuiltValueField(wireName: 'download')
+  String get download;
+
+  @nullable
+  @BuiltValueField(wireName: 'download_location')
+  String get downloadLocation;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Links.serializer, this));
+  }
+
+  static Links fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Links.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Links> get serializer => _$linksSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/links.g.dart

@@ -0,0 +1,196 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'links.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Links> _$linksSerializer = new _$LinksSerializer();
+
+class _$LinksSerializer implements StructuredSerializer<Links> {
+  @override
+  final Iterable<Type> types = const [Links, _$Links];
+  @override
+  final String wireName = 'Links';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Links object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[];
+    if (object.self != null) {
+      result
+        ..add('self')
+        ..add(serializers.serialize(object.self,
+            specifiedType: const FullType(String)));
+    }
+    if (object.html != null) {
+      result
+        ..add('html')
+        ..add(serializers.serialize(object.html,
+            specifiedType: const FullType(String)));
+    }
+    if (object.download != null) {
+      result
+        ..add('download')
+        ..add(serializers.serialize(object.download,
+            specifiedType: const FullType(String)));
+    }
+    if (object.downloadLocation != null) {
+      result
+        ..add('download_location')
+        ..add(serializers.serialize(object.downloadLocation,
+            specifiedType: const FullType(String)));
+    }
+    return result;
+  }
+
+  @override
+  Links deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new LinksBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'self':
+          result.self = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'html':
+          result.html = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'download':
+          result.download = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'download_location':
+          result.downloadLocation = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Links extends Links {
+  @override
+  final String self;
+  @override
+  final String html;
+  @override
+  final String download;
+  @override
+  final String downloadLocation;
+
+  factory _$Links([void Function(LinksBuilder) updates]) =>
+      (new LinksBuilder()..update(updates)).build();
+
+  _$Links._({this.self, this.html, this.download, this.downloadLocation})
+      : super._();
+
+  @override
+  Links rebuild(void Function(LinksBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  LinksBuilder toBuilder() => new LinksBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Links &&
+        self == other.self &&
+        html == other.html &&
+        download == other.download &&
+        downloadLocation == other.downloadLocation;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc($jc($jc(0, self.hashCode), html.hashCode), download.hashCode),
+        downloadLocation.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Links')
+          ..add('self', self)
+          ..add('html', html)
+          ..add('download', download)
+          ..add('downloadLocation', downloadLocation))
+        .toString();
+  }
+}
+
+class LinksBuilder implements Builder<Links, LinksBuilder> {
+  _$Links _$v;
+
+  String _self;
+  String get self => _$this._self;
+  set self(String self) => _$this._self = self;
+
+  String _html;
+  String get html => _$this._html;
+  set html(String html) => _$this._html = html;
+
+  String _download;
+  String get download => _$this._download;
+  set download(String download) => _$this._download = download;
+
+  String _downloadLocation;
+  String get downloadLocation => _$this._downloadLocation;
+  set downloadLocation(String downloadLocation) =>
+      _$this._downloadLocation = downloadLocation;
+
+  LinksBuilder();
+
+  LinksBuilder get _$this {
+    if (_$v != null) {
+      _self = _$v.self;
+      _html = _$v.html;
+      _download = _$v.download;
+      _downloadLocation = _$v.downloadLocation;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Links other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Links;
+  }
+
+  @override
+  void update(void Function(LinksBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Links build() {
+    final _$result = _$v ??
+        new _$Links._(
+            self: self,
+            html: html,
+            download: download,
+            downloadLocation: downloadLocation);
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/location.dart

@@ -0,0 +1,42 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+import 'position.dart';
+
+part 'location.g.dart';
+
+abstract class Location implements Built<Location, LocationBuilder> {
+  factory Location([void Function(LocationBuilder) updates]) = _$Location;
+
+  Location._();
+
+  @nullable
+  @BuiltValueField(wireName: 'city')
+  String get city;
+
+  @nullable
+  @BuiltValueField(wireName: 'country')
+  String get country;
+
+  @nullable
+  @BuiltValueField(wireName: 'position')
+  Position get position;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Location.serializer, this));
+  }
+
+  static Location fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Location.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Location> get serializer => _$locationSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/location.g.dart

@@ -0,0 +1,184 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'location.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Location> _$locationSerializer = new _$LocationSerializer();
+
+class _$LocationSerializer implements StructuredSerializer<Location> {
+  @override
+  final Iterable<Type> types = const [Location, _$Location];
+  @override
+  final String wireName = 'Location';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Location object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[];
+    if (object.city != null) {
+      result
+        ..add('city')
+        ..add(serializers.serialize(object.city,
+            specifiedType: const FullType(String)));
+    }
+    if (object.country != null) {
+      result
+        ..add('country')
+        ..add(serializers.serialize(object.country,
+            specifiedType: const FullType(String)));
+    }
+    if (object.position != null) {
+      result
+        ..add('position')
+        ..add(serializers.serialize(object.position,
+            specifiedType: const FullType(Position)));
+    }
+    return result;
+  }
+
+  @override
+  Location deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new LocationBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'city':
+          result.city = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'country':
+          result.country = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'position':
+          result.position.replace(serializers.deserialize(value,
+              specifiedType: const FullType(Position)) as Position);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Location extends Location {
+  @override
+  final String city;
+  @override
+  final String country;
+  @override
+  final Position position;
+
+  factory _$Location([void Function(LocationBuilder) updates]) =>
+      (new LocationBuilder()..update(updates)).build();
+
+  _$Location._({this.city, this.country, this.position}) : super._();
+
+  @override
+  Location rebuild(void Function(LocationBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  LocationBuilder toBuilder() => new LocationBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Location &&
+        city == other.city &&
+        country == other.country &&
+        position == other.position;
+  }
+
+  @override
+  int get hashCode {
+    return $jf(
+        $jc($jc($jc(0, city.hashCode), country.hashCode), position.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Location')
+          ..add('city', city)
+          ..add('country', country)
+          ..add('position', position))
+        .toString();
+  }
+}
+
+class LocationBuilder implements Builder<Location, LocationBuilder> {
+  _$Location _$v;
+
+  String _city;
+  String get city => _$this._city;
+  set city(String city) => _$this._city = city;
+
+  String _country;
+  String get country => _$this._country;
+  set country(String country) => _$this._country = country;
+
+  PositionBuilder _position;
+  PositionBuilder get position => _$this._position ??= new PositionBuilder();
+  set position(PositionBuilder position) => _$this._position = position;
+
+  LocationBuilder();
+
+  LocationBuilder get _$this {
+    if (_$v != null) {
+      _city = _$v.city;
+      _country = _$v.country;
+      _position = _$v.position?.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Location other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Location;
+  }
+
+  @override
+  void update(void Function(LocationBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Location build() {
+    _$Location _$result;
+    try {
+      _$result = _$v ??
+          new _$Location._(
+              city: city, country: country, position: _position?.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'position';
+        _position?.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'Location', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/photo.dart

@@ -0,0 +1,104 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_collection/built_collection.dart';
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+import 'current_user_collections.dart';
+import 'exif.dart';
+import 'links.dart';
+import 'location.dart';
+import 'tags.dart';
+import 'urls.dart';
+import 'user.dart';
+
+part 'photo.g.dart';
+
+abstract class Photo implements Built<Photo, PhotoBuilder> {
+  factory Photo([void Function(PhotoBuilder) updates]) = _$Photo;
+
+  Photo._();
+
+  @BuiltValueField(wireName: 'id')
+  String get id;
+
+  @nullable
+  @BuiltValueField(wireName: 'created_at')
+  String get createdAt;
+
+  @nullable
+  @BuiltValueField(wireName: 'updated_at')
+  String get updatedAt;
+
+  @nullable
+  @BuiltValueField(wireName: 'width')
+  int get width;
+
+  @nullable
+  @BuiltValueField(wireName: 'height')
+  int get height;
+
+  @nullable
+  @BuiltValueField(wireName: 'color')
+  String get color;
+
+  @nullable
+  @BuiltValueField(wireName: 'downloads')
+  int get downloads;
+
+  @nullable
+  @BuiltValueField(wireName: 'likes')
+  int get likes;
+
+  @nullable
+  @BuiltValueField(wireName: 'liked_by_user')
+  bool get likedByUser;
+
+  @nullable
+  @BuiltValueField(wireName: 'description')
+  String get description;
+
+  @nullable
+  @BuiltValueField(wireName: 'exif')
+  Exif get exif;
+
+  @nullable
+  @BuiltValueField(wireName: 'location')
+  Location get location;
+
+  @nullable
+  @BuiltValueField(wireName: 'tags')
+  BuiltList<Tags> get tags;
+
+  @nullable
+  @BuiltValueField(wireName: 'current_user_collections')
+  BuiltList<CurrentUserCollections> get currentUserCollections;
+
+  @nullable
+  @BuiltValueField(wireName: 'urls')
+  Urls get urls;
+
+  @nullable
+  @BuiltValueField(wireName: 'links')
+  Links get links;
+
+  @nullable
+  @BuiltValueField(wireName: 'user')
+  User get user;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Photo.serializer, this));
+  }
+
+  static Photo fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Photo.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Photo> get serializer => _$photoSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/photo.g.dart

@@ -0,0 +1,543 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'photo.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Photo> _$photoSerializer = new _$PhotoSerializer();
+
+class _$PhotoSerializer implements StructuredSerializer<Photo> {
+  @override
+  final Iterable<Type> types = const [Photo, _$Photo];
+  @override
+  final String wireName = 'Photo';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Photo object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'id',
+      serializers.serialize(object.id, specifiedType: const FullType(String)),
+    ];
+    if (object.createdAt != null) {
+      result
+        ..add('created_at')
+        ..add(serializers.serialize(object.createdAt,
+            specifiedType: const FullType(String)));
+    }
+    if (object.updatedAt != null) {
+      result
+        ..add('updated_at')
+        ..add(serializers.serialize(object.updatedAt,
+            specifiedType: const FullType(String)));
+    }
+    if (object.width != null) {
+      result
+        ..add('width')
+        ..add(serializers.serialize(object.width,
+            specifiedType: const FullType(int)));
+    }
+    if (object.height != null) {
+      result
+        ..add('height')
+        ..add(serializers.serialize(object.height,
+            specifiedType: const FullType(int)));
+    }
+    if (object.color != null) {
+      result
+        ..add('color')
+        ..add(serializers.serialize(object.color,
+            specifiedType: const FullType(String)));
+    }
+    if (object.downloads != null) {
+      result
+        ..add('downloads')
+        ..add(serializers.serialize(object.downloads,
+            specifiedType: const FullType(int)));
+    }
+    if (object.likes != null) {
+      result
+        ..add('likes')
+        ..add(serializers.serialize(object.likes,
+            specifiedType: const FullType(int)));
+    }
+    if (object.likedByUser != null) {
+      result
+        ..add('liked_by_user')
+        ..add(serializers.serialize(object.likedByUser,
+            specifiedType: const FullType(bool)));
+    }
+    if (object.description != null) {
+      result
+        ..add('description')
+        ..add(serializers.serialize(object.description,
+            specifiedType: const FullType(String)));
+    }
+    if (object.exif != null) {
+      result
+        ..add('exif')
+        ..add(serializers.serialize(object.exif,
+            specifiedType: const FullType(Exif)));
+    }
+    if (object.location != null) {
+      result
+        ..add('location')
+        ..add(serializers.serialize(object.location,
+            specifiedType: const FullType(Location)));
+    }
+    if (object.tags != null) {
+      result
+        ..add('tags')
+        ..add(serializers.serialize(object.tags,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(Tags)])));
+    }
+    if (object.currentUserCollections != null) {
+      result
+        ..add('current_user_collections')
+        ..add(serializers.serialize(object.currentUserCollections,
+            specifiedType: const FullType(
+                BuiltList, const [const FullType(CurrentUserCollections)])));
+    }
+    if (object.urls != null) {
+      result
+        ..add('urls')
+        ..add(serializers.serialize(object.urls,
+            specifiedType: const FullType(Urls)));
+    }
+    if (object.links != null) {
+      result
+        ..add('links')
+        ..add(serializers.serialize(object.links,
+            specifiedType: const FullType(Links)));
+    }
+    if (object.user != null) {
+      result
+        ..add('user')
+        ..add(serializers.serialize(object.user,
+            specifiedType: const FullType(User)));
+    }
+    return result;
+  }
+
+  @override
+  Photo deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new PhotoBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'id':
+          result.id = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'created_at':
+          result.createdAt = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'updated_at':
+          result.updatedAt = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'width':
+          result.width = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'height':
+          result.height = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'color':
+          result.color = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'downloads':
+          result.downloads = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'likes':
+          result.likes = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'liked_by_user':
+          result.likedByUser = serializers.deserialize(value,
+              specifiedType: const FullType(bool)) as bool;
+          break;
+        case 'description':
+          result.description = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'exif':
+          result.exif.replace(serializers.deserialize(value,
+              specifiedType: const FullType(Exif)) as Exif);
+          break;
+        case 'location':
+          result.location.replace(serializers.deserialize(value,
+              specifiedType: const FullType(Location)) as Location);
+          break;
+        case 'tags':
+          result.tags.replace(serializers.deserialize(value,
+                  specifiedType:
+                      const FullType(BuiltList, const [const FullType(Tags)]))
+              as BuiltList<dynamic>);
+          break;
+        case 'current_user_collections':
+          result.currentUserCollections.replace(serializers.deserialize(value,
+              specifiedType: const FullType(BuiltList, const [
+                const FullType(CurrentUserCollections)
+              ])) as BuiltList<dynamic>);
+          break;
+        case 'urls':
+          result.urls.replace(serializers.deserialize(value,
+              specifiedType: const FullType(Urls)) as Urls);
+          break;
+        case 'links':
+          result.links.replace(serializers.deserialize(value,
+              specifiedType: const FullType(Links)) as Links);
+          break;
+        case 'user':
+          result.user.replace(serializers.deserialize(value,
+              specifiedType: const FullType(User)) as User);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Photo extends Photo {
+  @override
+  final String id;
+  @override
+  final String createdAt;
+  @override
+  final String updatedAt;
+  @override
+  final int width;
+  @override
+  final int height;
+  @override
+  final String color;
+  @override
+  final int downloads;
+  @override
+  final int likes;
+  @override
+  final bool likedByUser;
+  @override
+  final String description;
+  @override
+  final Exif exif;
+  @override
+  final Location location;
+  @override
+  final BuiltList<Tags> tags;
+  @override
+  final BuiltList<CurrentUserCollections> currentUserCollections;
+  @override
+  final Urls urls;
+  @override
+  final Links links;
+  @override
+  final User user;
+
+  factory _$Photo([void Function(PhotoBuilder) updates]) =>
+      (new PhotoBuilder()..update(updates)).build();
+
+  _$Photo._(
+      {this.id,
+      this.createdAt,
+      this.updatedAt,
+      this.width,
+      this.height,
+      this.color,
+      this.downloads,
+      this.likes,
+      this.likedByUser,
+      this.description,
+      this.exif,
+      this.location,
+      this.tags,
+      this.currentUserCollections,
+      this.urls,
+      this.links,
+      this.user})
+      : super._() {
+    if (id == null) {
+      throw new BuiltValueNullFieldError('Photo', 'id');
+    }
+  }
+
+  @override
+  Photo rebuild(void Function(PhotoBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  PhotoBuilder toBuilder() => new PhotoBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Photo &&
+        id == other.id &&
+        createdAt == other.createdAt &&
+        updatedAt == other.updatedAt &&
+        width == other.width &&
+        height == other.height &&
+        color == other.color &&
+        downloads == other.downloads &&
+        likes == other.likes &&
+        likedByUser == other.likedByUser &&
+        description == other.description &&
+        exif == other.exif &&
+        location == other.location &&
+        tags == other.tags &&
+        currentUserCollections == other.currentUserCollections &&
+        urls == other.urls &&
+        links == other.links &&
+        user == other.user;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc(
+            $jc(
+                $jc(
+                    $jc(
+                        $jc(
+                            $jc(
+                                $jc(
+                                    $jc(
+                                        $jc(
+                                            $jc(
+                                                $jc(
+                                                    $jc(
+                                                        $jc(
+                                                            $jc(
+                                                                $jc(
+                                                                    $jc(
+                                                                        0,
+                                                                        id
+                                                                            .hashCode),
+                                                                    createdAt
+                                                                        .hashCode),
+                                                                updatedAt
+                                                                    .hashCode),
+                                                            width.hashCode),
+                                                        height.hashCode),
+                                                    color.hashCode),
+                                                downloads.hashCode),
+                                            likes.hashCode),
+                                        likedByUser.hashCode),
+                                    description.hashCode),
+                                exif.hashCode),
+                            location.hashCode),
+                        tags.hashCode),
+                    currentUserCollections.hashCode),
+                urls.hashCode),
+            links.hashCode),
+        user.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Photo')
+          ..add('id', id)
+          ..add('createdAt', createdAt)
+          ..add('updatedAt', updatedAt)
+          ..add('width', width)
+          ..add('height', height)
+          ..add('color', color)
+          ..add('downloads', downloads)
+          ..add('likes', likes)
+          ..add('likedByUser', likedByUser)
+          ..add('description', description)
+          ..add('exif', exif)
+          ..add('location', location)
+          ..add('tags', tags)
+          ..add('currentUserCollections', currentUserCollections)
+          ..add('urls', urls)
+          ..add('links', links)
+          ..add('user', user))
+        .toString();
+  }
+}
+
+class PhotoBuilder implements Builder<Photo, PhotoBuilder> {
+  _$Photo _$v;
+
+  String _id;
+  String get id => _$this._id;
+  set id(String id) => _$this._id = id;
+
+  String _createdAt;
+  String get createdAt => _$this._createdAt;
+  set createdAt(String createdAt) => _$this._createdAt = createdAt;
+
+  String _updatedAt;
+  String get updatedAt => _$this._updatedAt;
+  set updatedAt(String updatedAt) => _$this._updatedAt = updatedAt;
+
+  int _width;
+  int get width => _$this._width;
+  set width(int width) => _$this._width = width;
+
+  int _height;
+  int get height => _$this._height;
+  set height(int height) => _$this._height = height;
+
+  String _color;
+  String get color => _$this._color;
+  set color(String color) => _$this._color = color;
+
+  int _downloads;
+  int get downloads => _$this._downloads;
+  set downloads(int downloads) => _$this._downloads = downloads;
+
+  int _likes;
+  int get likes => _$this._likes;
+  set likes(int likes) => _$this._likes = likes;
+
+  bool _likedByUser;
+  bool get likedByUser => _$this._likedByUser;
+  set likedByUser(bool likedByUser) => _$this._likedByUser = likedByUser;
+
+  String _description;
+  String get description => _$this._description;
+  set description(String description) => _$this._description = description;
+
+  ExifBuilder _exif;
+  ExifBuilder get exif => _$this._exif ??= new ExifBuilder();
+  set exif(ExifBuilder exif) => _$this._exif = exif;
+
+  LocationBuilder _location;
+  LocationBuilder get location => _$this._location ??= new LocationBuilder();
+  set location(LocationBuilder location) => _$this._location = location;
+
+  ListBuilder<Tags> _tags;
+  ListBuilder<Tags> get tags => _$this._tags ??= new ListBuilder<Tags>();
+  set tags(ListBuilder<Tags> tags) => _$this._tags = tags;
+
+  ListBuilder<CurrentUserCollections> _currentUserCollections;
+  ListBuilder<CurrentUserCollections> get currentUserCollections =>
+      _$this._currentUserCollections ??=
+          new ListBuilder<CurrentUserCollections>();
+  set currentUserCollections(
+          ListBuilder<CurrentUserCollections> currentUserCollections) =>
+      _$this._currentUserCollections = currentUserCollections;
+
+  UrlsBuilder _urls;
+  UrlsBuilder get urls => _$this._urls ??= new UrlsBuilder();
+  set urls(UrlsBuilder urls) => _$this._urls = urls;
+
+  LinksBuilder _links;
+  LinksBuilder get links => _$this._links ??= new LinksBuilder();
+  set links(LinksBuilder links) => _$this._links = links;
+
+  UserBuilder _user;
+  UserBuilder get user => _$this._user ??= new UserBuilder();
+  set user(UserBuilder user) => _$this._user = user;
+
+  PhotoBuilder();
+
+  PhotoBuilder get _$this {
+    if (_$v != null) {
+      _id = _$v.id;
+      _createdAt = _$v.createdAt;
+      _updatedAt = _$v.updatedAt;
+      _width = _$v.width;
+      _height = _$v.height;
+      _color = _$v.color;
+      _downloads = _$v.downloads;
+      _likes = _$v.likes;
+      _likedByUser = _$v.likedByUser;
+      _description = _$v.description;
+      _exif = _$v.exif?.toBuilder();
+      _location = _$v.location?.toBuilder();
+      _tags = _$v.tags?.toBuilder();
+      _currentUserCollections = _$v.currentUserCollections?.toBuilder();
+      _urls = _$v.urls?.toBuilder();
+      _links = _$v.links?.toBuilder();
+      _user = _$v.user?.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Photo other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Photo;
+  }
+
+  @override
+  void update(void Function(PhotoBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Photo build() {
+    _$Photo _$result;
+    try {
+      _$result = _$v ??
+          new _$Photo._(
+              id: id,
+              createdAt: createdAt,
+              updatedAt: updatedAt,
+              width: width,
+              height: height,
+              color: color,
+              downloads: downloads,
+              likes: likes,
+              likedByUser: likedByUser,
+              description: description,
+              exif: _exif?.build(),
+              location: _location?.build(),
+              tags: _tags?.build(),
+              currentUserCollections: _currentUserCollections?.build(),
+              urls: _urls?.build(),
+              links: _links?.build(),
+              user: _user?.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'exif';
+        _exif?.build();
+        _$failedField = 'location';
+        _location?.build();
+        _$failedField = 'tags';
+        _tags?.build();
+        _$failedField = 'currentUserCollections';
+        _currentUserCollections?.build();
+        _$failedField = 'urls';
+        _urls?.build();
+        _$failedField = 'links';
+        _links?.build();
+        _$failedField = 'user';
+        _user?.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'Photo', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/position.dart

@@ -0,0 +1,35 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'position.g.dart';
+
+abstract class Position implements Built<Position, PositionBuilder> {
+  factory Position([void Function(PositionBuilder) updates]) = _$Position;
+
+  Position._();
+
+  @BuiltValueField(wireName: 'latitude')
+  double get latitude;
+
+  @BuiltValueField(wireName: 'longitude')
+  double get longitude;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Position.serializer, this));
+  }
+
+  static Position fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Position.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Position> get serializer => _$positionSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/position.g.dart

@@ -0,0 +1,153 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'position.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Position> _$positionSerializer = new _$PositionSerializer();
+
+class _$PositionSerializer implements StructuredSerializer<Position> {
+  @override
+  final Iterable<Type> types = const [Position, _$Position];
+  @override
+  final String wireName = 'Position';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Position object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'latitude',
+      serializers.serialize(object.latitude,
+          specifiedType: const FullType(double)),
+      'longitude',
+      serializers.serialize(object.longitude,
+          specifiedType: const FullType(double)),
+    ];
+
+    return result;
+  }
+
+  @override
+  Position deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new PositionBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'latitude':
+          result.latitude = serializers.deserialize(value,
+              specifiedType: const FullType(double)) as double;
+          break;
+        case 'longitude':
+          result.longitude = serializers.deserialize(value,
+              specifiedType: const FullType(double)) as double;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Position extends Position {
+  @override
+  final double latitude;
+  @override
+  final double longitude;
+
+  factory _$Position([void Function(PositionBuilder) updates]) =>
+      (new PositionBuilder()..update(updates)).build();
+
+  _$Position._({this.latitude, this.longitude}) : super._() {
+    if (latitude == null) {
+      throw new BuiltValueNullFieldError('Position', 'latitude');
+    }
+    if (longitude == null) {
+      throw new BuiltValueNullFieldError('Position', 'longitude');
+    }
+  }
+
+  @override
+  Position rebuild(void Function(PositionBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  PositionBuilder toBuilder() => new PositionBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Position &&
+        latitude == other.latitude &&
+        longitude == other.longitude;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc($jc(0, latitude.hashCode), longitude.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Position')
+          ..add('latitude', latitude)
+          ..add('longitude', longitude))
+        .toString();
+  }
+}
+
+class PositionBuilder implements Builder<Position, PositionBuilder> {
+  _$Position _$v;
+
+  double _latitude;
+  double get latitude => _$this._latitude;
+  set latitude(double latitude) => _$this._latitude = latitude;
+
+  double _longitude;
+  double get longitude => _$this._longitude;
+  set longitude(double longitude) => _$this._longitude = longitude;
+
+  PositionBuilder();
+
+  PositionBuilder get _$this {
+    if (_$v != null) {
+      _latitude = _$v.latitude;
+      _longitude = _$v.longitude;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Position other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Position;
+  }
+
+  @override
+  void update(void Function(PositionBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Position build() {
+    final _$result =
+        _$v ?? new _$Position._(latitude: latitude, longitude: longitude);
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/search_photos_response.dart

@@ -0,0 +1,47 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_collection/built_collection.dart';
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+import 'photo.dart';
+
+part 'search_photos_response.g.dart';
+
+abstract class SearchPhotosResponse
+    implements Built<SearchPhotosResponse, SearchPhotosResponseBuilder> {
+  factory SearchPhotosResponse(
+          [void Function(SearchPhotosResponseBuilder) updates]) =
+      _$SearchPhotosResponse;
+
+  SearchPhotosResponse._();
+
+  @nullable
+  @BuiltValueField(wireName: 'total')
+  int get total;
+
+  @nullable
+  @BuiltValueField(wireName: 'total_pages')
+  int get totalPages;
+
+  @BuiltValueField(wireName: 'results')
+  BuiltList<Photo> get results;
+
+  String toJson() {
+    return json.encode(
+        serializers.serializeWith(SearchPhotosResponse.serializer, this));
+  }
+
+  static SearchPhotosResponse fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        SearchPhotosResponse.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<SearchPhotosResponse> get serializer =>
+      _$searchPhotosResponseSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/search_photos_response.g.dart

@@ -0,0 +1,202 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'search_photos_response.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<SearchPhotosResponse> _$searchPhotosResponseSerializer =
+    new _$SearchPhotosResponseSerializer();
+
+class _$SearchPhotosResponseSerializer
+    implements StructuredSerializer<SearchPhotosResponse> {
+  @override
+  final Iterable<Type> types = const [
+    SearchPhotosResponse,
+    _$SearchPhotosResponse
+  ];
+  @override
+  final String wireName = 'SearchPhotosResponse';
+
+  @override
+  Iterable<Object> serialize(
+      Serializers serializers, SearchPhotosResponse object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'results',
+      serializers.serialize(object.results,
+          specifiedType:
+              const FullType(BuiltList, const [const FullType(Photo)])),
+    ];
+    if (object.total != null) {
+      result
+        ..add('total')
+        ..add(serializers.serialize(object.total,
+            specifiedType: const FullType(int)));
+    }
+    if (object.totalPages != null) {
+      result
+        ..add('total_pages')
+        ..add(serializers.serialize(object.totalPages,
+            specifiedType: const FullType(int)));
+    }
+    return result;
+  }
+
+  @override
+  SearchPhotosResponse deserialize(
+      Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new SearchPhotosResponseBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'total':
+          result.total = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'total_pages':
+          result.totalPages = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'results':
+          result.results.replace(serializers.deserialize(value,
+                  specifiedType:
+                      const FullType(BuiltList, const [const FullType(Photo)]))
+              as BuiltList<dynamic>);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$SearchPhotosResponse extends SearchPhotosResponse {
+  @override
+  final int total;
+  @override
+  final int totalPages;
+  @override
+  final BuiltList<Photo> results;
+
+  factory _$SearchPhotosResponse(
+          [void Function(SearchPhotosResponseBuilder) updates]) =>
+      (new SearchPhotosResponseBuilder()..update(updates)).build();
+
+  _$SearchPhotosResponse._({this.total, this.totalPages, this.results})
+      : super._() {
+    if (results == null) {
+      throw new BuiltValueNullFieldError('SearchPhotosResponse', 'results');
+    }
+  }
+
+  @override
+  SearchPhotosResponse rebuild(
+          void Function(SearchPhotosResponseBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  SearchPhotosResponseBuilder toBuilder() =>
+      new SearchPhotosResponseBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is SearchPhotosResponse &&
+        total == other.total &&
+        totalPages == other.totalPages &&
+        results == other.results;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc($jc(0, total.hashCode), totalPages.hashCode), results.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('SearchPhotosResponse')
+          ..add('total', total)
+          ..add('totalPages', totalPages)
+          ..add('results', results))
+        .toString();
+  }
+}
+
+class SearchPhotosResponseBuilder
+    implements Builder<SearchPhotosResponse, SearchPhotosResponseBuilder> {
+  _$SearchPhotosResponse _$v;
+
+  int _total;
+  int get total => _$this._total;
+  set total(int total) => _$this._total = total;
+
+  int _totalPages;
+  int get totalPages => _$this._totalPages;
+  set totalPages(int totalPages) => _$this._totalPages = totalPages;
+
+  ListBuilder<Photo> _results;
+  ListBuilder<Photo> get results =>
+      _$this._results ??= new ListBuilder<Photo>();
+  set results(ListBuilder<Photo> results) => _$this._results = results;
+
+  SearchPhotosResponseBuilder();
+
+  SearchPhotosResponseBuilder get _$this {
+    if (_$v != null) {
+      _total = _$v.total;
+      _totalPages = _$v.totalPages;
+      _results = _$v.results?.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(SearchPhotosResponse other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$SearchPhotosResponse;
+  }
+
+  @override
+  void update(void Function(SearchPhotosResponseBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$SearchPhotosResponse build() {
+    _$SearchPhotosResponse _$result;
+    try {
+      _$result = _$v ??
+          new _$SearchPhotosResponse._(
+              total: total, totalPages: totalPages, results: results.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'results';
+        results.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'SearchPhotosResponse', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/tags.dart

@@ -0,0 +1,32 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'tags.g.dart';
+
+abstract class Tags implements Built<Tags, TagsBuilder> {
+  factory Tags([void Function(TagsBuilder) updates]) = _$Tags;
+
+  Tags._();
+
+  @BuiltValueField(wireName: 'title')
+  String get title;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Tags.serializer, this));
+  }
+
+  static Tags fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Tags.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Tags> get serializer => _$tagsSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/tags.g.dart

@@ -0,0 +1,131 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'tags.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Tags> _$tagsSerializer = new _$TagsSerializer();
+
+class _$TagsSerializer implements StructuredSerializer<Tags> {
+  @override
+  final Iterable<Type> types = const [Tags, _$Tags];
+  @override
+  final String wireName = 'Tags';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Tags object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'title',
+      serializers.serialize(object.title,
+          specifiedType: const FullType(String)),
+    ];
+
+    return result;
+  }
+
+  @override
+  Tags deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new TagsBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'title':
+          result.title = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Tags extends Tags {
+  @override
+  final String title;
+
+  factory _$Tags([void Function(TagsBuilder) updates]) =>
+      (new TagsBuilder()..update(updates)).build();
+
+  _$Tags._({this.title}) : super._() {
+    if (title == null) {
+      throw new BuiltValueNullFieldError('Tags', 'title');
+    }
+  }
+
+  @override
+  Tags rebuild(void Function(TagsBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  TagsBuilder toBuilder() => new TagsBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Tags && title == other.title;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(0, title.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Tags')..add('title', title))
+        .toString();
+  }
+}
+
+class TagsBuilder implements Builder<Tags, TagsBuilder> {
+  _$Tags _$v;
+
+  String _title;
+  String get title => _$this._title;
+  set title(String title) => _$this._title = title;
+
+  TagsBuilder();
+
+  TagsBuilder get _$this {
+    if (_$v != null) {
+      _title = _$v.title;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Tags other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Tags;
+  }
+
+  @override
+  void update(void Function(TagsBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Tags build() {
+    final _$result = _$v ?? new _$Tags._(title: title);
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/unsplash.dart

@@ -0,0 +1,122 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:http/http.dart' as http;
+import 'package:logging/logging.dart';
+import 'package:meta/meta.dart';
+import 'package:pedantic/pedantic.dart';
+
+import 'api_error.dart';
+import 'photo.dart';
+import 'search_photos_response.dart';
+
+final _unsplashBaseUrl = Uri.parse('https://api.unsplash.com/');
+
+/// Unsplash API Client. Requires an
+/// [Unsplash API](https://unsplash.com/developers) `accessKey` to make
+/// requests to the Unsplash API.
+class Unsplash {
+  Unsplash({
+    @required String accessKey,
+    http.BaseClient httpClient,
+  })  : assert(accessKey != null, 'accessKey must not be null'),
+        _accessKey = accessKey,
+        _client = httpClient ?? http.Client();
+
+  final String _accessKey;
+  final http.Client _client;
+  final _log = Logger('Unsplash');
+
+  Future<SearchPhotosResponse> searchPhotos({
+    @required String query,
+    num page = 1,
+    num perPage = 10,
+    List<num> collections = const [],
+    SearchPhotosOrientation orientation,
+  }) async {
+    final searchPhotosUrl = _unsplashBaseUrl
+        .replace(path: '/search/photos', queryParameters: <String, String>{
+      'query': query,
+      if (page != 1) 'page': '$page',
+      if (perPage != 10) 'per_page': '$perPage',
+      if (collections != null && collections.isNotEmpty)
+        'collections': '${collections.join(',')}',
+      if (orientation == SearchPhotosOrientation.landscape)
+        'orientation': 'landscape',
+      if (orientation == SearchPhotosOrientation.portrait)
+        'orientation': 'portrait',
+      if (orientation == SearchPhotosOrientation.squarish)
+        'orientation': 'squarish',
+    });
+    _log.info('GET $searchPhotosUrl');
+
+    final response = await _client.get(
+      searchPhotosUrl,
+      headers: {
+        'Accept-Version': 'v1',
+        'Authorization': 'Client-ID $_accessKey',
+      },
+    );
+
+    dynamic body;
+    try {
+      body = json.decode(response.body);
+    } catch (e) {
+      throw UnsplashException('Invalid JSON received');
+    }
+
+    if (body is Map &&
+        body['errors'] is List &&
+        body['errors'].isNotEmpty as bool) {
+      final apiError = ApiError.fromJson(response.body);
+      throw UnsplashException(apiError.errors.join(', '));
+    }
+
+    return SearchPhotosResponse.fromJson(
+      response.body,
+    );
+  }
+
+  Future<Uint8List> download(Photo photo) async {
+    // For detail on how downloading photos from Unsplash, please see
+    // https://help.unsplash.com/en/articles/2511258-guideline-triggering-a-download
+
+    _log.info('GET ${photo.urls.full}');
+    final futureBytes = http.readBytes(photo.urls.full, headers: {
+      'Accept-Version': 'v1',
+      'Authorization': 'Client-ID $_accessKey',
+    });
+
+    _log.info('GET ${photo.links.downloadLocation}');
+    unawaited(http.get(photo.links.downloadLocation, headers: {
+      'Accept-Version': 'v1',
+      'Authorization': 'Client-ID $_accessKey',
+    }));
+
+    return futureBytes;
+  }
+}
+
+enum SearchPhotosOrientation {
+  landscape,
+  portrait,
+  squarish,
+}
+
+class UnsplashException implements Exception {
+  UnsplashException([this.message]);
+
+  final String message;
+
+  @override
+  String toString() {
+    if (message == null) {
+      return 'UnsplashException';
+    }
+    return 'UnsplashException: $message';
+  }
+}

experimental/desktop_photo_search/lib/src/unsplash/urls.dart

@@ -0,0 +1,49 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+
+part 'urls.g.dart';
+
+abstract class Urls implements Built<Urls, UrlsBuilder> {
+  factory Urls([void Function(UrlsBuilder b) updates]) = _$Urls;
+
+  Urls._();
+
+  @nullable
+  @BuiltValueField(wireName: 'raw')
+  String get raw;
+
+  @nullable
+  @BuiltValueField(wireName: 'full')
+  String get full;
+
+  @nullable
+  @BuiltValueField(wireName: 'regular')
+  String get regular;
+
+  @nullable
+  @BuiltValueField(wireName: 'small')
+  String get small;
+
+  @nullable
+  @BuiltValueField(wireName: 'thumb')
+  String get thumb;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(Urls.serializer, this));
+  }
+
+  static Urls fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        Urls.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<Urls> get serializer => _$urlsSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/urls.g.dart

@@ -0,0 +1,212 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'urls.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<Urls> _$urlsSerializer = new _$UrlsSerializer();
+
+class _$UrlsSerializer implements StructuredSerializer<Urls> {
+  @override
+  final Iterable<Type> types = const [Urls, _$Urls];
+  @override
+  final String wireName = 'Urls';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, Urls object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[];
+    if (object.raw != null) {
+      result
+        ..add('raw')
+        ..add(serializers.serialize(object.raw,
+            specifiedType: const FullType(String)));
+    }
+    if (object.full != null) {
+      result
+        ..add('full')
+        ..add(serializers.serialize(object.full,
+            specifiedType: const FullType(String)));
+    }
+    if (object.regular != null) {
+      result
+        ..add('regular')
+        ..add(serializers.serialize(object.regular,
+            specifiedType: const FullType(String)));
+    }
+    if (object.small != null) {
+      result
+        ..add('small')
+        ..add(serializers.serialize(object.small,
+            specifiedType: const FullType(String)));
+    }
+    if (object.thumb != null) {
+      result
+        ..add('thumb')
+        ..add(serializers.serialize(object.thumb,
+            specifiedType: const FullType(String)));
+    }
+    return result;
+  }
+
+  @override
+  Urls deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new UrlsBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'raw':
+          result.raw = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'full':
+          result.full = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'regular':
+          result.regular = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'small':
+          result.small = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'thumb':
+          result.thumb = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$Urls extends Urls {
+  @override
+  final String raw;
+  @override
+  final String full;
+  @override
+  final String regular;
+  @override
+  final String small;
+  @override
+  final String thumb;
+
+  factory _$Urls([void Function(UrlsBuilder) updates]) =>
+      (new UrlsBuilder()..update(updates)).build();
+
+  _$Urls._({this.raw, this.full, this.regular, this.small, this.thumb})
+      : super._();
+
+  @override
+  Urls rebuild(void Function(UrlsBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  UrlsBuilder toBuilder() => new UrlsBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is Urls &&
+        raw == other.raw &&
+        full == other.full &&
+        regular == other.regular &&
+        small == other.small &&
+        thumb == other.thumb;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc($jc($jc($jc(0, raw.hashCode), full.hashCode), regular.hashCode),
+            small.hashCode),
+        thumb.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('Urls')
+          ..add('raw', raw)
+          ..add('full', full)
+          ..add('regular', regular)
+          ..add('small', small)
+          ..add('thumb', thumb))
+        .toString();
+  }
+}
+
+class UrlsBuilder implements Builder<Urls, UrlsBuilder> {
+  _$Urls _$v;
+
+  String _raw;
+  String get raw => _$this._raw;
+  set raw(String raw) => _$this._raw = raw;
+
+  String _full;
+  String get full => _$this._full;
+  set full(String full) => _$this._full = full;
+
+  String _regular;
+  String get regular => _$this._regular;
+  set regular(String regular) => _$this._regular = regular;
+
+  String _small;
+  String get small => _$this._small;
+  set small(String small) => _$this._small = small;
+
+  String _thumb;
+  String get thumb => _$this._thumb;
+  set thumb(String thumb) => _$this._thumb = thumb;
+
+  UrlsBuilder();
+
+  UrlsBuilder get _$this {
+    if (_$v != null) {
+      _raw = _$v.raw;
+      _full = _$v.full;
+      _regular = _$v.regular;
+      _small = _$v.small;
+      _thumb = _$v.thumb;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(Urls other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$Urls;
+  }
+
+  @override
+  void update(void Function(UrlsBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$Urls build() {
+    final _$result = _$v ??
+        new _$Urls._(
+            raw: raw, full: full, regular: regular, small: small, thumb: thumb);
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/unsplash/user.dart

@@ -0,0 +1,71 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+import '../serializers.dart';
+import 'links.dart';
+
+part 'user.g.dart';
+
+abstract class User implements Built<User, UserBuilder> {
+  factory User([void Function(UserBuilder) updates]) = _$User;
+
+  User._();
+
+  @BuiltValueField(wireName: 'id')
+  String get id;
+
+  @nullable
+  @BuiltValueField(wireName: 'updated_at')
+  String get updatedAt;
+
+  @BuiltValueField(wireName: 'username')
+  String get username;
+
+  @BuiltValueField(wireName: 'name')
+  String get name;
+
+  @nullable
+  @BuiltValueField(wireName: 'portfolio_url')
+  String get portfolioUrl;
+
+  @nullable
+  @BuiltValueField(wireName: 'bio')
+  String get bio;
+
+  @nullable
+  @BuiltValueField(wireName: 'location')
+  String get location;
+
+  @nullable
+  @BuiltValueField(wireName: 'total_likes')
+  int get totalLikes;
+
+  @nullable
+  @BuiltValueField(wireName: 'total_photos')
+  int get totalPhotos;
+
+  @nullable
+  @BuiltValueField(wireName: 'total_collections')
+  int get totalCollections;
+
+  @nullable
+  @BuiltValueField(wireName: 'links')
+  Links get links;
+
+  String toJson() {
+    return json.encode(serializers.serializeWith(User.serializer, this));
+  }
+
+  static User fromJson(String jsonString) {
+    return serializers.deserializeWith(
+        User.serializer, json.decode(jsonString));
+  }
+
+  static Serializer<User> get serializer => _$userSerializer;
+}

experimental/desktop_photo_search/lib/src/unsplash/user.g.dart

@@ -0,0 +1,377 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'user.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<User> _$userSerializer = new _$UserSerializer();
+
+class _$UserSerializer implements StructuredSerializer<User> {
+  @override
+  final Iterable<Type> types = const [User, _$User];
+  @override
+  final String wireName = 'User';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, User object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'id',
+      serializers.serialize(object.id, specifiedType: const FullType(String)),
+      'username',
+      serializers.serialize(object.username,
+          specifiedType: const FullType(String)),
+      'name',
+      serializers.serialize(object.name, specifiedType: const FullType(String)),
+    ];
+    if (object.updatedAt != null) {
+      result
+        ..add('updated_at')
+        ..add(serializers.serialize(object.updatedAt,
+            specifiedType: const FullType(String)));
+    }
+    if (object.portfolioUrl != null) {
+      result
+        ..add('portfolio_url')
+        ..add(serializers.serialize(object.portfolioUrl,
+            specifiedType: const FullType(String)));
+    }
+    if (object.bio != null) {
+      result
+        ..add('bio')
+        ..add(serializers.serialize(object.bio,
+            specifiedType: const FullType(String)));
+    }
+    if (object.location != null) {
+      result
+        ..add('location')
+        ..add(serializers.serialize(object.location,
+            specifiedType: const FullType(String)));
+    }
+    if (object.totalLikes != null) {
+      result
+        ..add('total_likes')
+        ..add(serializers.serialize(object.totalLikes,
+            specifiedType: const FullType(int)));
+    }
+    if (object.totalPhotos != null) {
+      result
+        ..add('total_photos')
+        ..add(serializers.serialize(object.totalPhotos,
+            specifiedType: const FullType(int)));
+    }
+    if (object.totalCollections != null) {
+      result
+        ..add('total_collections')
+        ..add(serializers.serialize(object.totalCollections,
+            specifiedType: const FullType(int)));
+    }
+    if (object.links != null) {
+      result
+        ..add('links')
+        ..add(serializers.serialize(object.links,
+            specifiedType: const FullType(Links)));
+    }
+    return result;
+  }
+
+  @override
+  User deserialize(Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new UserBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final dynamic value = iterator.current;
+      switch (key) {
+        case 'id':
+          result.id = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'updated_at':
+          result.updatedAt = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'username':
+          result.username = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'name':
+          result.name = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'portfolio_url':
+          result.portfolioUrl = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'bio':
+          result.bio = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'location':
+          result.location = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'total_likes':
+          result.totalLikes = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'total_photos':
+          result.totalPhotos = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'total_collections':
+          result.totalCollections = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+        case 'links':
+          result.links.replace(serializers.deserialize(value,
+              specifiedType: const FullType(Links)) as Links);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$User extends User {
+  @override
+  final String id;
+  @override
+  final String updatedAt;
+  @override
+  final String username;
+  @override
+  final String name;
+  @override
+  final String portfolioUrl;
+  @override
+  final String bio;
+  @override
+  final String location;
+  @override
+  final int totalLikes;
+  @override
+  final int totalPhotos;
+  @override
+  final int totalCollections;
+  @override
+  final Links links;
+
+  factory _$User([void Function(UserBuilder) updates]) =>
+      (new UserBuilder()..update(updates)).build();
+
+  _$User._(
+      {this.id,
+      this.updatedAt,
+      this.username,
+      this.name,
+      this.portfolioUrl,
+      this.bio,
+      this.location,
+      this.totalLikes,
+      this.totalPhotos,
+      this.totalCollections,
+      this.links})
+      : super._() {
+    if (id == null) {
+      throw new BuiltValueNullFieldError('User', 'id');
+    }
+    if (username == null) {
+      throw new BuiltValueNullFieldError('User', 'username');
+    }
+    if (name == null) {
+      throw new BuiltValueNullFieldError('User', 'name');
+    }
+  }
+
+  @override
+  User rebuild(void Function(UserBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  UserBuilder toBuilder() => new UserBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is User &&
+        id == other.id &&
+        updatedAt == other.updatedAt &&
+        username == other.username &&
+        name == other.name &&
+        portfolioUrl == other.portfolioUrl &&
+        bio == other.bio &&
+        location == other.location &&
+        totalLikes == other.totalLikes &&
+        totalPhotos == other.totalPhotos &&
+        totalCollections == other.totalCollections &&
+        links == other.links;
+  }
+
+  @override
+  int get hashCode {
+    return $jf($jc(
+        $jc(
+            $jc(
+                $jc(
+                    $jc(
+                        $jc(
+                            $jc(
+                                $jc(
+                                    $jc(
+                                        $jc($jc(0, id.hashCode),
+                                            updatedAt.hashCode),
+                                        username.hashCode),
+                                    name.hashCode),
+                                portfolioUrl.hashCode),
+                            bio.hashCode),
+                        location.hashCode),
+                    totalLikes.hashCode),
+                totalPhotos.hashCode),
+            totalCollections.hashCode),
+        links.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('User')
+          ..add('id', id)
+          ..add('updatedAt', updatedAt)
+          ..add('username', username)
+          ..add('name', name)
+          ..add('portfolioUrl', portfolioUrl)
+          ..add('bio', bio)
+          ..add('location', location)
+          ..add('totalLikes', totalLikes)
+          ..add('totalPhotos', totalPhotos)
+          ..add('totalCollections', totalCollections)
+          ..add('links', links))
+        .toString();
+  }
+}
+
+class UserBuilder implements Builder<User, UserBuilder> {
+  _$User _$v;
+
+  String _id;
+  String get id => _$this._id;
+  set id(String id) => _$this._id = id;
+
+  String _updatedAt;
+  String get updatedAt => _$this._updatedAt;
+  set updatedAt(String updatedAt) => _$this._updatedAt = updatedAt;
+
+  String _username;
+  String get username => _$this._username;
+  set username(String username) => _$this._username = username;
+
+  String _name;
+  String get name => _$this._name;
+  set name(String name) => _$this._name = name;
+
+  String _portfolioUrl;
+  String get portfolioUrl => _$this._portfolioUrl;
+  set portfolioUrl(String portfolioUrl) => _$this._portfolioUrl = portfolioUrl;
+
+  String _bio;
+  String get bio => _$this._bio;
+  set bio(String bio) => _$this._bio = bio;
+
+  String _location;
+  String get location => _$this._location;
+  set location(String location) => _$this._location = location;
+
+  int _totalLikes;
+  int get totalLikes => _$this._totalLikes;
+  set totalLikes(int totalLikes) => _$this._totalLikes = totalLikes;
+
+  int _totalPhotos;
+  int get totalPhotos => _$this._totalPhotos;
+  set totalPhotos(int totalPhotos) => _$this._totalPhotos = totalPhotos;
+
+  int _totalCollections;
+  int get totalCollections => _$this._totalCollections;
+  set totalCollections(int totalCollections) =>
+      _$this._totalCollections = totalCollections;
+
+  LinksBuilder _links;
+  LinksBuilder get links => _$this._links ??= new LinksBuilder();
+  set links(LinksBuilder links) => _$this._links = links;
+
+  UserBuilder();
+
+  UserBuilder get _$this {
+    if (_$v != null) {
+      _id = _$v.id;
+      _updatedAt = _$v.updatedAt;
+      _username = _$v.username;
+      _name = _$v.name;
+      _portfolioUrl = _$v.portfolioUrl;
+      _bio = _$v.bio;
+      _location = _$v.location;
+      _totalLikes = _$v.totalLikes;
+      _totalPhotos = _$v.totalPhotos;
+      _totalCollections = _$v.totalCollections;
+      _links = _$v.links?.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(User other) {
+    if (other == null) {
+      throw new ArgumentError.notNull('other');
+    }
+    _$v = other as _$User;
+  }
+
+  @override
+  void update(void Function(UserBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$User build() {
+    _$User _$result;
+    try {
+      _$result = _$v ??
+          new _$User._(
+              id: id,
+              updatedAt: updatedAt,
+              username: username,
+              name: name,
+              portfolioUrl: portfolioUrl,
+              bio: bio,
+              location: location,
+              totalLikes: totalLikes,
+              totalPhotos: totalPhotos,
+              totalCollections: totalCollections,
+              links: _links?.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'links';
+        _links?.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'User', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

experimental/desktop_photo_search/lib/src/widgets/data_tree.dart

@@ -0,0 +1,350 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+
+class DataTreeRule extends StatelessWidget {
+  const DataTreeRule({Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      height: 2,
+      color: Theme.of(context).colorScheme.onBackground.withOpacity(0.1),
+    );
+  }
+}
+
+class DataTreeInkWell extends StatefulWidget {
+  const DataTreeInkWell({Key key, this.onTap, this.isSelected, this.child})
+      : super(key: key);
+
+  final VoidCallback onTap;
+  final bool isSelected;
+  final Widget child;
+
+  @override
+  _DataTreeInkWellState createState() => _DataTreeInkWellState();
+}
+
+class _DataTreeInkWellState extends State<DataTreeInkWell>
+    with SingleTickerProviderStateMixin {
+  AnimationController controller;
+  Animation selectionColor;
+
+  @override
+  void initState() {
+    super.initState();
+    controller = AnimationController(
+        duration: const Duration(milliseconds: 100), vsync: this);
+  }
+
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  void didUpdateWidget(DataTreeInkWell oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.isSelected) {
+      controller.forward();
+    } else {
+      controller.reverse();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final ColorScheme colorScheme = Theme.of(context).colorScheme;
+
+    final Animation<Color> backgroundColor = controller
+        .drive(CurveTween(curve: Curves.fastOutSlowIn))
+        .drive(ColorTween(
+          begin: colorScheme.primary.withOpacity(0.0),
+          end: colorScheme.primary.withOpacity(0.08),
+        ));
+
+    final Animation<Color> iconColor = controller
+        .drive(CurveTween(curve: Curves.fastOutSlowIn))
+        .drive(ColorTween(
+          begin: colorScheme.onBackground.withOpacity(0.54),
+          end: colorScheme.onBackground.withOpacity(0.87),
+        ));
+
+    return AnimatedBuilder(
+      animation: controller,
+      builder: (context, child) {
+        return IconTheme(
+          data: IconThemeData(color: iconColor.value),
+          child: Container(
+            color: backgroundColor.value,
+            child: child,
+          ),
+        );
+      },
+      child: InkWell(
+        onTap: widget.onTap,
+        splashFactory: InkRipple.splashFactory,
+        splashColor: colorScheme.primary.withOpacity(0.14),
+        highlightColor: Colors.transparent,
+        child: widget.child,
+      ),
+    );
+  }
+}
+
+class DataTreeNode extends StatefulWidget {
+  const DataTreeNode({
+    Key key,
+    this.leading,
+    @required this.title,
+    this.backgroundColor,
+    this.onExpansionChanged,
+    this.onSelectionChanged,
+    this.children = const <Widget>[],
+    this.initiallyExpanded = false,
+    this.indent = 0,
+    this.height = 36,
+  })  : assert(initiallyExpanded != null),
+        assert(indent != null && indent >= 0),
+        super(key: key);
+
+  final Widget leading;
+  final Widget title;
+  final ValueChanged<bool> onExpansionChanged;
+  final ValueChanged<bool> onSelectionChanged;
+  final List<Widget> children;
+  final Color backgroundColor;
+  final bool initiallyExpanded;
+  final double indent;
+  final double height;
+
+  @override
+  _DataTreeNodeState createState() => _DataTreeNodeState();
+}
+
+class _DataTreeNodeState extends State<DataTreeNode>
+    with SingleTickerProviderStateMixin {
+  static final Animatable<double> _easeInTween =
+      CurveTween(curve: Curves.easeIn);
+  static final Animatable<double> _halfTween =
+      Tween<double>(begin: 0.0, end: 0.25);
+
+  AnimationController _controller;
+  Animation<double> _iconTurns;
+  Animation<double> _heightFactor;
+
+  bool _isExpanded = false;
+  bool _isSelected = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(
+        duration: const Duration(milliseconds: 200), vsync: this);
+    _heightFactor = _controller.drive(_easeInTween);
+    _iconTurns = _controller.drive(_halfTween.chain(_easeInTween));
+    _isExpanded = (PageStorage.of(context)?.readState(context) ??
+        widget.initiallyExpanded) as bool;
+    if (_isExpanded) {
+      _controller.value = 1.0;
+    }
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  void _handleNodeTap() {
+    setState(() {
+      _isExpanded = !_isExpanded;
+      if (_isExpanded) {
+        _controller.forward();
+      } else {
+        _controller.reverse().then<void>((value) {
+          if (!mounted) {
+            return;
+          }
+          setState(() {
+            // Rebuild without widget.children.
+          });
+        });
+      }
+      PageStorage.of(context)?.writeState(context, _isExpanded);
+    });
+    if (widget.onExpansionChanged != null) {
+      widget.onExpansionChanged(_isExpanded);
+    }
+  }
+
+  void _handleLeafTap() {
+    _isSelected = !_isSelected;
+    if (widget.onSelectionChanged != null) {
+      widget.onSelectionChanged(_isSelected);
+    }
+  }
+
+  Widget _buildChildren(BuildContext context, Widget child) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: <Widget>[
+        DataTreeInkWell(
+          onTap: _handleNodeTap,
+          isSelected: _isExpanded,
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.start,
+            children: <Widget>[
+              SizedBox(width: widget.indent),
+              RotationTransition(
+                turns: _iconTurns,
+                child: Icon(
+                  Icons.arrow_right,
+                  size: 20,
+                ),
+              ),
+              const SizedBox(width: 8),
+              Icon(
+                Icons.folder,
+                size: 20,
+              ),
+              const SizedBox(width: 16),
+              widget.title,
+            ],
+          ),
+        ),
+        if (child != null) // If child == null, then this DataNode is closed.
+          const DataTreeRule(),
+        if (child != null)
+          ClipRect(
+            child: Align(
+              alignment: Alignment.topLeft,
+              heightFactor: _heightFactor.value,
+              child: child,
+            ),
+          ),
+      ],
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final ColorScheme colorScheme = Theme.of(context).colorScheme;
+    final Color textColor = colorScheme.onBackground.withOpacity(0.87);
+
+    final bool closed = !_isExpanded && _controller.isDismissed;
+
+    return widget.children.isEmpty
+        // Leaf node.
+        ? DataTreeInkWell(
+            onTap: _handleLeafTap,
+            isSelected: _isSelected,
+            child: Row(
+              children: <Widget>[
+                SizedBox(width: widget.indent),
+                Icon(
+                  Icons.web_asset,
+                  size: 20,
+                ),
+                const SizedBox(width: 16),
+                DefaultTextStyle(
+                  style: Theme.of(context).textTheme.body1.copyWith(
+                        color: textColor,
+                      ),
+                  child: widget.title,
+                ),
+              ],
+            ),
+          )
+        // Not a leaf node.
+        : AnimatedBuilder(
+            animation: _controller.view,
+            builder: _buildChildren,
+            child: closed
+                ? null
+                : Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: <Widget>[
+                      for (int index = 0;
+                          index < (widget.children.length * 2) - 1;
+                          index += 1)
+                        (index % 2 == 1)
+                            ? const DataTreeRule()
+                            : widget.children[index ~/ 2],
+                    ],
+                  ),
+          );
+  }
+}
+
+// One entry in the multilevel list displayed by this app.
+class Entry {
+  Entry(this.title, [this.children = const <Entry>[]]);
+  final String title;
+  final List<Entry> children;
+  bool isSelected = false;
+  bool isEnabled = true;
+}
+
+// A visualization of one Entry based on DataTreeNode.
+class EntryItem extends StatefulWidget {
+  const EntryItem({Key key, this.entry}) : super(key: key);
+
+  final Entry entry;
+
+  @override
+  _EntryItemState createState() => _EntryItemState();
+}
+
+class _EntryItemState extends State<EntryItem> {
+  Widget _buildNodes(Entry root, double indent) {
+    return DataTreeNode(
+      key: PageStorageKey<Entry>(root),
+      onSelectionChanged: (isSelected) {
+        setState(() {
+          root.isSelected = isSelected;
+        });
+      },
+      title: Container(
+        alignment: AlignmentDirectional.centerStart,
+        height: 36,
+        child: Text(root.title),
+      ),
+      indent: indent,
+      children: root.children.map<Widget>((entry) {
+        return _buildNodes(entry, indent + 28);
+      }).toList(),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return _buildNodes(widget.entry, 16);
+  }
+}
+
+class DataTree extends StatelessWidget {
+  DataTree(this.entries)
+      : assert(entries != null),
+        assert(entries.isNotEmpty);
+  final List<Entry> entries;
+
+  @override
+  Widget build(BuildContext context) => ListView.builder(
+        itemCount: entries.length * 2 - 1,
+        itemBuilder: (context, index) {
+          if (index % 2 == 1) {
+            return const DataTreeRule();
+          }
+          return EntryItem(
+            entry: entries[index ~/ 2],
+          );
+        },
+      );
+}

experimental/desktop_photo_search/lib/src/widgets/photo_details.dart

@@ -0,0 +1,126 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:flutter/gestures.dart';
+import 'package:meta/meta.dart';
+import 'package:transparent_image/transparent_image.dart';
+import 'package:url_launcher/url_launcher.dart' as url_launcher;
+
+import '../../unsplash_access_key.dart';
+import '../unsplash/photo.dart';
+
+final _unsplashHomepage = Uri.encodeFull(
+    'https://unsplash.com/?utm_source=$unsplashAppName&utm_medium=referral');
+
+typedef PhotoDetailsPhotoSaveCallback = void Function(Photo);
+
+class PhotoDetails extends StatefulWidget {
+  const PhotoDetails({
+    @required this.photo,
+    @required this.onPhotoSave,
+  });
+  final Photo photo;
+  final PhotoDetailsPhotoSaveCallback onPhotoSave;
+
+  @override
+  _PhotoDetailsState createState() => _PhotoDetailsState();
+}
+
+class _PhotoDetailsState extends State<PhotoDetails>
+    with SingleTickerProviderStateMixin {
+  Widget _buildPhotoAttribution(BuildContext context) {
+    return RichText(
+      text: TextSpan(
+        style: Theme.of(context).textTheme.body1,
+        children: [
+          const TextSpan(text: 'Photo by '),
+          TextSpan(
+            text: widget.photo.user.name,
+            style: const TextStyle(
+              decoration: TextDecoration.underline,
+            ),
+            recognizer: TapGestureRecognizer()
+              ..onTap = () async {
+                final url = Uri.encodeFull(
+                    'https://unsplash.com/@${widget.photo.user.username}?utm_source=$unsplashAppName&utm_medium=referral');
+                if (await url_launcher.canLaunch(url)) {
+                  await url_launcher.launch(url);
+                }
+              },
+          ),
+          const TextSpan(text: ' on '),
+          TextSpan(
+            text: 'Unsplash',
+            style: const TextStyle(
+              decoration: TextDecoration.underline,
+            ),
+            recognizer: TapGestureRecognizer()
+              ..onTap = () async {
+                if (await url_launcher.canLaunch(_unsplashHomepage)) {
+                  await url_launcher.launch(_unsplashHomepage);
+                }
+              },
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return SingleChildScrollView(
+      child: Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            const SizedBox(height: 16),
+            Card(
+              shape: ContinuousRectangleBorder(
+                side: BorderSide(color: Colors.black12),
+                borderRadius: BorderRadius.circular(4),
+              ),
+              child: AnimatedSize(
+                vsync: this,
+                duration: Duration(milliseconds: 750),
+                child: Padding(
+                  padding: const EdgeInsets.fromLTRB(16, 16, 16, 40),
+                  child: ConstrainedBox(
+                    constraints: BoxConstraints(
+                      minWidth: 400,
+                      minHeight: 400,
+                    ),
+                    child: FadeInImage.memoryNetwork(
+                      placeholder: kTransparentImage,
+                      image: widget.photo.urls.small,
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            const SizedBox(height: 8),
+            Padding(
+              padding: const EdgeInsets.only(left: 4),
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.start,
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  _buildPhotoAttribution(context),
+                  const SizedBox(width: 8),
+                  IconButton(
+                    visualDensity: VisualDensity.compact,
+                    icon: Icon(Icons.cloud_download),
+                    onPressed: () => widget.onPhotoSave(widget.photo),
+                  ),
+                ],
+              ),
+            ),
+            const SizedBox(height: 48),
+          ],
+        ),
+      ),
+    );
+  }
+}

experimental/desktop_photo_search/lib/src/widgets/photo_search_dialog.dart

@@ -0,0 +1,70 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+
+typedef PhotoSearchDialogCallback = void Function(String searchQuery);
+
+class PhotoSearchDialog extends StatefulWidget {
+  const PhotoSearchDialog(this.callback);
+  final PhotoSearchDialogCallback callback;
+  @override
+  State<PhotoSearchDialog> createState() => _PhotoSearchDialogState();
+}
+
+class _PhotoSearchDialogState extends State<PhotoSearchDialog> {
+  final _controller = TextEditingController();
+  bool _searchEnabled = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller.addListener(() {
+      setState(() {
+        _searchEnabled = _controller.text.isNotEmpty;
+      });
+    });
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) => AlertDialog(
+        title: const Text('Photo Search'),
+        content: TextField(
+          autofocus: true,
+          controller: _controller,
+          decoration: const InputDecoration(
+            hintText: 'Search query',
+          ),
+          onSubmitted: (content) {
+            if (content.isNotEmpty) {
+              widget.callback(content);
+              Navigator.of(context).pop();
+            }
+          },
+        ),
+        actions: <Widget>[
+          FlatButton(
+            onPressed: () {
+              Navigator.of(context).pop();
+            },
+            child: Text('Cancel'.toUpperCase()),
+          ),
+          FlatButton(
+            onPressed: _searchEnabled
+                ? () {
+                    widget.callback(_controller.text);
+                    Navigator.of(context).pop();
+                  }
+                : null,
+            child: Text('Search'.toUpperCase()),
+          ),
+        ],
+      );
+}

experimental/desktop_photo_search/lib/src/widgets/split.dart

@@ -0,0 +1,194 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math';
+
+import 'package:flutter/gestures.dart';
+import 'package:flutter/material.dart';
+
+/// A widget that takes two children, lays them out along [axis], and allows
+/// the user to resize them.
+///
+/// The user can customize the amount of space allocated to each child by
+/// dragging a divider between them.
+///
+/// [initialFirstFraction] defines how much space to give the [firstChild]
+/// when first building this widget. [secondChild] will take the remaining
+/// space.
+///
+/// The user can drag the widget with key [dividerKey] to change
+/// the space allocated between [firstChild] and [secondChild].
+// TODO(djshuckerow): introduce support for a minimum fraction a child
+//                    is allowed.
+class Split extends StatefulWidget {
+  /// Builds a split oriented along [axis].
+  const Split({
+    Key key,
+    @required this.axis,
+    @required this.firstChild,
+    @required this.secondChild,
+    double initialFirstFraction,
+  })  : initialFirstFraction = initialFirstFraction ?? 0.5,
+        assert(axis != null),
+        assert(firstChild != null),
+        assert(secondChild != null),
+        super(key: key);
+
+  /// The main axis the children will lay out on.
+  ///
+  /// If [Axis.horizontal], the children will be placed in a [Row]
+  /// and they will be horizontally resizable.
+  ///
+  /// If [Axis.vertical], the children will be placed in a [Column]
+  /// and they will be vertically resizable.
+  ///
+  /// Cannot be null.
+  final Axis axis;
+
+  /// The child that will be laid out first along [axis].
+  final Widget firstChild;
+
+  /// The child that will be laid out last along [axis].
+  final Widget secondChild;
+
+  /// The fraction of the layout to allocate to [firstChild].
+  ///
+  /// [secondChild] will receive a fraction of `1 - initialFirstFraction`.
+  final double initialFirstFraction;
+
+  /// The key passed to the divider between [firstChild] and [secondChild].
+  ///
+  /// Visible to grab it in tests.
+  @visibleForTesting
+  Key get dividerKey => Key('$this dividerKey');
+
+  /// The size of the divider between [firstChild] and [secondChild] in
+  /// logical pixels (dp, not px).
+  static const double dividerMainAxisSize = 10;
+
+  static Axis axisFor(BuildContext context, double horizontalAspectRatio) {
+    final screenSize = MediaQuery.of(context).size;
+    final aspectRatio = screenSize.width / screenSize.height;
+    if (aspectRatio >= horizontalAspectRatio) {
+      return Axis.horizontal;
+    }
+    return Axis.vertical;
+  }
+
+  @override
+  State<StatefulWidget> createState() => _SplitState();
+}
+
+class _SplitState extends State<Split> {
+  double firstFraction;
+
+  double get secondFraction => 1 - firstFraction;
+
+  bool get isHorizontal => widget.axis == Axis.horizontal;
+
+  @override
+  void initState() {
+    super.initState();
+    firstFraction = widget.initialFirstFraction;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return LayoutBuilder(builder: _buildLayout);
+  }
+
+  Widget _buildLayout(BuildContext context, BoxConstraints constraints) {
+    final width = constraints.maxWidth;
+    final height = constraints.maxHeight;
+    final axisSize = isHorizontal ? width : height;
+    final crossAxisSize = isHorizontal ? height : width;
+    const halfDivider = Split.dividerMainAxisSize / 2.0;
+
+    // Determine what fraction to give each child, including enough space to
+    // display the divider.
+    double firstSize = axisSize * firstFraction;
+    double secondSize = axisSize * secondFraction;
+
+    // Clamp the sizes to be sure there is enough space for the dividers.
+    firstSize = firstSize.clamp(halfDivider, axisSize - halfDivider) as double;
+    secondSize =
+        secondSize.clamp(halfDivider, axisSize - halfDivider) as double;
+
+    // Remove space from each child to place the divider in the middle.
+    firstSize = firstSize - halfDivider;
+    secondSize = secondSize - halfDivider;
+
+    void updateSpacing(DragUpdateDetails dragDetails) {
+      final delta = isHorizontal ? dragDetails.delta.dx : dragDetails.delta.dy;
+      final fractionalDelta = delta / axisSize;
+      setState(() {
+        // Update the fraction of space consumed by the children,
+        // being sure not to allocate any negative space.
+        firstFraction += fractionalDelta;
+        firstFraction = firstFraction.clamp(0.0, 1.0) as double;
+      });
+    }
+
+    // TODO(https://github.com/flutter/flutter/issues/43747): use an icon.
+    // The material icon for a drag handle is not currently available.
+    // For now, draw an indicator that is 3 lines running in the direction
+    // of the main axis, like a hamburger menu.
+    // TODO(https://github.com/flutter/devtools/issues/1265): update mouse
+    // to indicate that this is resizable.
+    final dragIndicator = Flex(
+      direction: isHorizontal ? Axis.vertical : Axis.horizontal,
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        for (var i = 0; i < min(crossAxisSize / 6.0, 3).floor(); i++)
+          Padding(
+            padding: EdgeInsets.symmetric(
+              vertical: isHorizontal ? 2.0 : 0.0,
+              horizontal: isHorizontal ? 0.0 : 2.0,
+            ),
+            child: DecoratedBox(
+              decoration: BoxDecoration(
+                color: Theme.of(context).dividerColor,
+                borderRadius: BorderRadius.circular(Split.dividerMainAxisSize),
+              ),
+              child: SizedBox(
+                height: isHorizontal ? 2.0 : Split.dividerMainAxisSize - 2.0,
+                width: isHorizontal ? Split.dividerMainAxisSize - 2.0 : 2.0,
+              ),
+            ),
+          ),
+      ],
+    );
+
+    final children = [
+      SizedBox(
+        width: isHorizontal ? firstSize : width,
+        height: isHorizontal ? height : firstSize,
+        child: widget.firstChild,
+      ),
+      GestureDetector(
+        key: widget.dividerKey,
+        behavior: HitTestBehavior.translucent,
+        onHorizontalDragUpdate: isHorizontal ? updateSpacing : null,
+        onVerticalDragUpdate: isHorizontal ? null : updateSpacing,
+        // DartStartBehavior.down is needed to keep the mouse pointer stuck to
+        // the drag bar. There still appears to be a few frame lag before the
+        // drag action triggers which is't ideal but isn't a launch blocker.
+        dragStartBehavior: DragStartBehavior.down,
+        child: SizedBox(
+          width: isHorizontal ? Split.dividerMainAxisSize : width,
+          height: isHorizontal ? height : Split.dividerMainAxisSize,
+          child: Center(
+            child: dragIndicator,
+          ),
+        ),
+      ),
+      SizedBox(
+        width: isHorizontal ? secondSize : width,
+        height: isHorizontal ? height : secondSize,
+        child: widget.secondChild,
+      ),
+    ];
+    return Flex(direction: widget.axis, children: children);
+  }
+}

experimental/desktop_photo_search/lib/unsplash_access_key.dart

@@ -0,0 +1,9 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// TODO: Retrieve an API Access Key from https://unsplash.com/developers
+const String unsplashAccessKey = '';
+
+// The application name for the above API Access Key.
+const unsplashAppName = '';

experimental/desktop_photo_search/macos/.gitignore

@@ -0,0 +1,6 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/xcuserdata/

experimental/desktop_photo_search/macos/Flutter/Flutter-Debug.xcconfig

@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"

experimental/desktop_photo_search/macos/Flutter/Flutter-Release.xcconfig

@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"

experimental/desktop_photo_search/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -0,0 +1,16 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import file_chooser
+import menubar
+import url_launcher_macos
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  FileChooserPlugin.register(with: registry.registrar(forPlugin: "FileChooserPlugin"))
+  MenubarPlugin.register(with: registry.registrar(forPlugin: "MenubarPlugin"))
+  UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin"))
+}

experimental/desktop_photo_search/macos/Podfile

@@ -0,0 +1,82 @@
+platform :osx, '10.11'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  pods_ary = []
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) { |line|
+      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+      plugin = line.split(pattern=separator)
+      if plugin.length == 2
+        podname = plugin[0].strip()
+        path = plugin[1].strip()
+        podpath = File.expand_path("#{path}", file_abs_path)
+        pods_ary.push({:name => podname, :path => podpath});
+      else
+        puts "Invalid plugin specification: #{line}"
+      end
+  }
+  return pods_ary
+end
+
+def pubspec_supports_macos(file)
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return false;
+  end
+  File.foreach(file_abs_path) { |line|
+    return true if line =~ /^\s*macos:/
+  }
+  return false
+end
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  ephemeral_dir = File.join('Flutter', 'ephemeral')
+  symlink_dir = File.join(ephemeral_dir, '.symlinks')
+  symlink_plugins_dir = File.join(symlink_dir, 'plugins')
+  system("rm -rf #{symlink_dir}")
+  system("mkdir -p #{symlink_plugins_dir}")
+
+  # Flutter Pods
+  generated_xcconfig = parse_KV_file(File.join(ephemeral_dir, 'Flutter-Generated.xcconfig'))
+  if generated_xcconfig.empty?
+    puts "Flutter-Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."
+  end
+  generated_xcconfig.map { |p|
+    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
+      symlink = File.join(symlink_dir, 'flutter')
+      File.symlink(File.dirname(p[:path]), symlink)
+      pod 'FlutterMacOS', :path => File.join(symlink, File.basename(p[:path]))
+    end
+  }
+
+  # Plugin Pods
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.map { |p|
+    symlink = File.join(symlink_plugins_dir, p[:name])
+    File.symlink(p[:path], symlink)
+    if pubspec_supports_macos(File.join(symlink, 'pubspec.yaml'))
+      pod p[:name], :path => File.join(symlink, 'macos')
+    end
+  }
+end
+
+# Prevent Cocoapods from embedding a second Flutter framework and causing an error with the new Xcode build system.
+install! 'cocoapods', :disable_input_output_paths => true

experimental/desktop_photo_search/macos/Podfile.lock

@@ -0,0 +1,34 @@
+PODS:
+  - file_chooser (0.0.2):
+    - FlutterMacOS
+  - FlutterMacOS (1.0.0)
+  - menubar (0.0.2):
+    - FlutterMacOS
+  - url_launcher_macos (0.0.1):
+    - FlutterMacOS
+
+DEPENDENCIES:
+  - file_chooser (from `Flutter/ephemeral/.symlinks/plugins/file_chooser/macos`)
+  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64`)
+  - menubar (from `Flutter/ephemeral/.symlinks/plugins/menubar/macos`)
+  - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
+
+EXTERNAL SOURCES:
+  file_chooser:
+    :path: Flutter/ephemeral/.symlinks/plugins/file_chooser/macos
+  FlutterMacOS:
+    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64
+  menubar:
+    :path: Flutter/ephemeral/.symlinks/plugins/menubar/macos
+  url_launcher_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
+
+SPEC CHECKSUMS:
+  file_chooser: 24432cf5dc836722b05c11c2a0a30d19c3c9b996
+  FlutterMacOS: 15bea8a44d2fa024068daa0140371c020b4b6ff9
+  menubar: 4e3d461d62d775540277ce6639acafe2a111a231
+  url_launcher_macos: 77182d012b6b515c0955d24ed22b38f79b82a99d
+
+PODFILE CHECKSUM: d8ba9b3e9e93c62c74a660b46c6fcb09f03991a7
+
+COCOAPODS: 1.8.4

experimental/desktop_photo_search/macos/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,656 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 51;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+		33D1A10422148B71006C7A3E /* FlutterMacOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 33D1A10322148B71006C7A3E /* FlutterMacOS.framework */; };
+		33D1A10522148B93006C7A3E /* FlutterMacOS.framework in Bundle Framework */ = {isa = PBXBuildFile; fileRef = 33D1A10322148B71006C7A3E /* FlutterMacOS.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		990488F4C467BB319BE84EEE /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8CA9B03A69D73D1FB7426AAD /* Pods_Runner.framework */; };
+		D73912F022F37F9E000D13A0 /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D73912EF22F37F9E000D13A0 /* App.framework */; };
+		D73912F222F3801D000D13A0 /* App.framework in Bundle Framework */ = {isa = PBXBuildFile; fileRef = D73912EF22F37F9E000D13A0 /* App.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+				D73912F222F3801D000D13A0 /* App.framework in Bundle Framework */,
+				33D1A10522148B93006C7A3E /* FlutterMacOS.framework in Bundle Framework */,
+			);
+			name = "Bundle Framework";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		30800270447E6C112F71B5A2 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
+		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
+		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
+		33CC10ED2044A3C60003C045 /* Photo Search.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Photo Search.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
+		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
+		33CC10F72044A3C60003C045 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = Runner/Info.plist; sourceTree = "<group>"; };
+		33CC11122044BFA00003C045 /* MainFlutterWindow.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainFlutterWindow.swift; sourceTree = "<group>"; };
+		33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Debug.xcconfig"; sourceTree = "<group>"; };
+		33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Release.xcconfig"; sourceTree = "<group>"; };
+		33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = "Flutter-Generated.xcconfig"; path = "ephemeral/Flutter-Generated.xcconfig"; sourceTree = "<group>"; };
+		33D1A10322148B71006C7A3E /* FlutterMacOS.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = FlutterMacOS.framework; path = Flutter/ephemeral/FlutterMacOS.framework; sourceTree = SOURCE_ROOT; };
+		33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
+		33E51914231749380026EE4D /* Release.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = Release.entitlements; sourceTree = "<group>"; };
+		33E5194F232828860026EE4D /* AppInfo.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AppInfo.xcconfig; sourceTree = "<group>"; };
+		6874C7348F87E58F46720BF4 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
+		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Release.xcconfig; sourceTree = "<group>"; };
+		8CA9B03A69D73D1FB7426AAD /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Debug.xcconfig; sourceTree = "<group>"; };
+		D73912EF22F37F9E000D13A0 /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/ephemeral/App.framework; sourceTree = SOURCE_ROOT; };
+		F2B5091A1DEA6D9237ACA748 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		33CC10EA2044A3C60003C045 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D73912F022F37F9E000D13A0 /* App.framework in Frameworks */,
+				33D1A10422148B71006C7A3E /* FlutterMacOS.framework in Frameworks */,
+				990488F4C467BB319BE84EEE /* Pods_Runner.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		33BA886A226E78AF003329D5 /* Configs */ = {
+			isa = PBXGroup;
+			children = (
+				33E5194F232828860026EE4D /* AppInfo.xcconfig */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				333000ED22D3DE5D00554162 /* Warnings.xcconfig */,
+			);
+			path = Configs;
+			sourceTree = "<group>";
+		};
+		33CC10E42044A3C60003C045 = {
+			isa = PBXGroup;
+			children = (
+				33FAB671232836740065AC1E /* Runner */,
+				33CEB47122A05771004F2AC0 /* Flutter */,
+				33CC10EE2044A3C60003C045 /* Products */,
+				D73912EC22F37F3D000D13A0 /* Frameworks */,
+				BF229184A4E8E7AA3EE10F9D /* Pods */,
+			);
+			sourceTree = "<group>";
+		};
+		33CC10EE2044A3C60003C045 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				33CC10ED2044A3C60003C045 /* Photo Search.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		33CC11242044D66E0003C045 /* Resources */ = {
+			isa = PBXGroup;
+			children = (
+				33CC10F22044A3C60003C045 /* Assets.xcassets */,
+				33CC10F42044A3C60003C045 /* MainMenu.xib */,
+				33CC10F72044A3C60003C045 /* Info.plist */,
+			);
+			name = Resources;
+			path = ..;
+			sourceTree = "<group>";
+		};
+		33CEB47122A05771004F2AC0 /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */,
+				33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */,
+				33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */,
+				33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */,
+				D73912EF22F37F9E000D13A0 /* App.framework */,
+				33D1A10322148B71006C7A3E /* FlutterMacOS.framework */,
+			);
+			path = Flutter;
+			sourceTree = "<group>";
+		};
+		33FAB671232836740065AC1E /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				33CC10F02044A3C60003C045 /* AppDelegate.swift */,
+				33CC11122044BFA00003C045 /* MainFlutterWindow.swift */,
+				33E51913231747F40026EE4D /* DebugProfile.entitlements */,
+				33E51914231749380026EE4D /* Release.entitlements */,
+				33CC11242044D66E0003C045 /* Resources */,
+				33BA886A226E78AF003329D5 /* Configs */,
+			);
+			path = Runner;
+			sourceTree = "<group>";
+		};
+		BF229184A4E8E7AA3EE10F9D /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				F2B5091A1DEA6D9237ACA748 /* Pods-Runner.debug.xcconfig */,
+				30800270447E6C112F71B5A2 /* Pods-Runner.release.xcconfig */,
+				6874C7348F87E58F46720BF4 /* Pods-Runner.profile.xcconfig */,
+			);
+			path = Pods;
+			sourceTree = "<group>";
+		};
+		D73912EC22F37F3D000D13A0 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				8CA9B03A69D73D1FB7426AAD /* Pods_Runner.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		33CC10EC2044A3C60003C045 /* Runner */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */;
+			buildPhases = (
+				4DC401FC85DF0A3149D2CECF /* [CP] Check Pods Manifest.lock */,
+				33CC10E92044A3C60003C045 /* Sources */,
+				33CC10EA2044A3C60003C045 /* Frameworks */,
+				33CC10EB2044A3C60003C045 /* Resources */,
+				33CC110E2044A8840003C045 /* Bundle Framework */,
+				3399D490228B24CF009A79C7 /* ShellScript */,
+				A00F8189E692D536E087EEAD /* [CP] Embed Pods Frameworks */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				33CC11202044C79F0003C045 /* PBXTargetDependency */,
+			);
+			name = Runner;
+			productName = Runner;
+			productReference = 33CC10ED2044A3C60003C045 /* Photo Search.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		33CC10E52044A3C60003C045 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 0920;
+				LastUpgradeCheck = 1120;
+				ORGANIZATIONNAME = "The Flutter Authors";
+				TargetAttributes = {
+					33CC10EC2044A3C60003C045 = {
+						CreatedOnToolsVersion = 9.2;
+						LastSwiftMigration = 1100;
+						ProvisioningStyle = Automatic;
+						SystemCapabilities = {
+							com.apple.Sandbox = {
+								enabled = 1;
+							};
+						};
+					};
+					33CC111A2044C6BA0003C045 = {
+						CreatedOnToolsVersion = 9.2;
+						ProvisioningStyle = Manual;
+					};
+				};
+			};
+			buildConfigurationList = 33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */;
+			compatibilityVersion = "Xcode 8.0";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 33CC10E42044A3C60003C045;
+			productRefGroup = 33CC10EE2044A3C60003C045 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				33CC10EC2044A3C60003C045 /* Runner */,
+				33CC111A2044C6BA0003C045 /* Flutter Assemble */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		33CC10EB2044A3C60003C045 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */,
+				33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXShellScriptBuildPhase section */
+		3399D490228B24CF009A79C7 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+			);
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "echo \"$PRODUCT_NAME.app\" > \"$PROJECT_DIR\"/Flutter/ephemeral/.app_filename\n";
+		};
+		33CC111E2044C6BF0003C045 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+				Flutter/ephemeral/FlutterInputs.xcfilelist,
+			);
+			inputPaths = (
+				Flutter/ephemeral/tripwire,
+			);
+			outputFileListPaths = (
+				Flutter/ephemeral/FlutterOutputs.xcfilelist,
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh\ntouch Flutter/ephemeral/tripwire\n";
+		};
+		4DC401FC85DF0A3149D2CECF /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
+		A00F8189E692D536E087EEAD /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputFileListPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
+/* End PBXShellScriptBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		33CC10E92044A3C60003C045 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */,
+				33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */,
+				335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXTargetDependency section */
+		33CC11202044C79F0003C045 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 33CC111A2044C6BA0003C045 /* Flutter Assemble */;
+			targetProxy = 33CC111F2044C79F0003C045 /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
+/* Begin PBXVariantGroup section */
+		33CC10F42044A3C60003C045 /* MainMenu.xib */ = {
+			isa = PBXVariantGroup;
+			children = (
+				33CC10F52044A3C60003C045 /* Base */,
+			);
+			name = MainMenu.xib;
+			path = Runner;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		338D0CE9231458BD00FA5F75 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Profile;
+		};
+		338D0CEA231458BD00FA5F75 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_IDENTITY = "-";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter/ephemeral",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Profile;
+		};
+		338D0CEB231458BD00FA5F75 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Profile;
+		};
+		33CC10F92044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = macosx;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		33CC10FA2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Release;
+		};
+		33CC10FC2044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_IDENTITY = "-";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter/ephemeral",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		33CC10FD2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Release.entitlements;
+				CODE_SIGN_IDENTITY = "-";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter/ephemeral",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
+		33CC111C2044C6BA0003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Debug;
+		};
+		33CC111D2044C6BA0003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10F92044A3C60003C045 /* Debug */,
+				33CC10FA2044A3C60003C045 /* Release */,
+				338D0CE9231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10FC2044A3C60003C045 /* Debug */,
+				33CC10FD2044A3C60003C045 /* Release */,
+				338D0CEA231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}

experimental/desktop_photo_search/macos/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:/Users/stuartmorgan/src/embedder-opensource/flutter-desktop-embedding/example/macos/Runner.xcodeproj">
+   </FileRef>
+</Workspace>

experimental/desktop_photo_search/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

experimental/desktop_photo_search/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1120"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "Photo Search.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "Photo Search.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "00380F9121DF178D00097171"
+               BuildableName = "RunnerUITests.xctest"
+               BlueprintName = "RunnerUITests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "Photo Search.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "Photo Search.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

experimental/desktop_photo_search/macos/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>

experimental/desktop_photo_search/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

experimental/desktop_photo_search/macos/Runner/AppDelegate.swift

@@ -0,0 +1,13 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}

experimental/desktop_photo_search/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

experimental/desktop_photo_search/macos/Runner/Base.lproj/MainMenu.xib

@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>

experimental/desktop_photo_search/macos/Runner/Configs/AppInfo.xcconfig

@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = Photo Search
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = com.example.photoSearch
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2019 com.example. All rights reserved.

experimental/desktop_photo_search/macos/Runner/Configs/Debug.xcconfig

@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"

experimental/desktop_photo_search/macos/Runner/Configs/Release.xcconfig

@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"

experimental/desktop_photo_search/macos/Runner/Configs/Warnings.xcconfig

@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES

experimental/desktop_photo_search/macos/Runner/DebugProfile.entitlements

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.files.user-selected.read-write</key>
+	<true/>
+	<key>com.apple.security.network.client</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>

experimental/desktop_photo_search/macos/Runner/Info.plist

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>

experimental/desktop_photo_search/macos/Runner/MainFlutterWindow.swift

@@ -0,0 +1,19 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController.init()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}

experimental/desktop_photo_search/macos/Runner/Release.entitlements

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.files.user-selected.read-write</key>
+	<true/>
+	<key>com.apple.security.network.client</key>
+	<true/>
+</dict>
+</plist>

experimental/desktop_photo_search/pubspec.lock

@@ -0,0 +1,681 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  analysis_server_lib:
+    dependency: transitive
+    description:
+      name: analysis_server_lib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.8"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.38.5"
+  analyzer_plugin:
+    dependency: transitive
+    description:
+      name: analyzer_plugin
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.1"
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.11"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.5.2"
+  async:
+    dependency: "direct dev"
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  build:
+    dependency: "direct dev"
+    description:
+      name: build
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.2"
+  build_config:
+    dependency: transitive
+    description:
+      name: build_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.1+1"
+  build_daemon:
+    dependency: transitive
+    description:
+      name: build_daemon
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
+  build_resolvers:
+    dependency: transitive
+    description:
+      name: build_resolvers
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  build_runner:
+    dependency: "direct dev"
+    description:
+      name: build_runner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.2"
+  build_runner_core:
+    dependency: transitive
+    description:
+      name: build_runner_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.2.0"
+  built_collection:
+    dependency: "direct main"
+    description:
+      name: built_collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.3.0"
+  built_value:
+    dependency: "direct main"
+    description:
+      name: built_value
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "7.0.0"
+  built_value_generator:
+    dependency: "direct dev"
+    description:
+      name: built_value_generator
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "7.0.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3+2"
+  code_builder:
+    dependency: transitive
+    description:
+      name: code_builder
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.2.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.14.11"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.3+3"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.3"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  dart_style:
+    dependency: transitive
+    description:
+      name: dart_style
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.3"
+  file_chooser:
+    dependency: "direct main"
+    description:
+      path: "plugins/file_chooser"
+      ref: HEAD
+      resolved-ref: ab3b14f7231289dc66b7ad21c607cb90dd896fc0
+      url: "https://github.com/google/flutter-desktop-embedding.git"
+    source: git
+    version: "0.1.0"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.11"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  front_end:
+    dependency: transitive
+    description:
+      name: front_end
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.27"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  graphs:
+    dependency: transitive
+    description:
+      name: graphs
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
+  grinder:
+    dependency: "direct dev"
+    description:
+      name: grinder
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.8.3+1"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+3"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.0+2"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.3"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.15.8"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.3"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.1+1"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  kernel:
+    dependency: transitive
+    description:
+      name: kernel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.27"
+  logging:
+    dependency: "direct main"
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.11.3+2"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.6"
+  menubar:
+    dependency: "direct main"
+    description:
+      path: "plugins/menubar"
+      ref: HEAD
+      resolved-ref: ab3b14f7231289dc66b7ad21c607cb90dd896fc0
+      url: "https://github.com/google/flutter-desktop-embedding.git"
+    source: git
+    version: "0.0.1"
+  meta:
+    dependency: "direct main"
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.8"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.6+3"
+  multi_server_socket:
+    dependency: transitive
+    description:
+      name: multi_server_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
+  node_interop:
+    dependency: transitive
+    description:
+      name: node_interop
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  node_io:
+    dependency: transitive
+    description:
+      name: node_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1+2"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.8"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  package_resolver:
+    dependency: transitive
+    description:
+      name: package_resolver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.10"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.4"
+  pedantic:
+    dependency: "direct main"
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0+1"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.0"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.0"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.2.0"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.2"
+  pubspec_parse:
+    dependency: transitive
+    description:
+      name: pubspec_parse
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.5"
+  quiver:
+    dependency: transitive
+    description:
+      name: quiver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.5"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.5"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.8"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.3"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_gen:
+    dependency: "direct dev"
+    description:
+      name: source_gen
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.4+6"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.5"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.8"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.5.5"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.3"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  stream_transform:
+    dependency: transitive
+    description:
+      name: stream_transform
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.20"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  test:
+    dependency: "direct dev"
+    description:
+      name: test
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.4"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.11"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.15"
+  timing:
+    dependency: transitive
+    description:
+      name: timing
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.1+2"
+  transparent_image:
+    dependency: "direct main"
+    description:
+      name: transparent_image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
+  tuneup:
+    dependency: "direct dev"
+    description:
+      name: tuneup
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.6+1"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.6"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.3.0"
+  url_launcher_macos:
+    dependency: "direct main"
+    description:
+      name: url_launcher_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.0+1"
+  uuid:
+    dependency: "direct main"
+    description:
+      name: uuid
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.4"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.8"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.3"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.7+13"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.5.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
+sdks:
+  dart: ">=2.7.0-dev <3.0.0"
+  flutter: ">=1.13.1-pre <2.0.0"

experimental/desktop_photo_search/pubspec.yaml

@@ -0,0 +1,45 @@
+name: desktop_photo_search
+description: Search for Photos, using the Unsplash API.
+version: 1.0.0+1
+
+environment:
+  sdk: ^2.7.0-dev
+  flutter: ^1.13.1-pre
+
+dependencies:
+  flutter:
+    sdk: flutter
+  built_collection: ^4.3.0
+  built_value: ^7.0.0
+  cupertino_icons: ^0.1.2
+  file_chooser:
+    git:
+      url: https://github.com/google/flutter-desktop-embedding.git
+      path: plugins/file_chooser
+  logging: ^0.11.3+2
+  menubar:
+    git:
+      url: https://github.com/google/flutter-desktop-embedding.git
+      path: plugins/menubar
+  meta: ^1.1.8
+  pedantic: ^1.8.0
+  provider: ^3.2.0
+  transparent_image: ^1.0.0
+  uuid: ^2.0.4
+  url_launcher: ^5.3.0
+  url_launcher_macos: ^0.0.1
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  async: ^2.4.0
+  build: ^1.2.2
+  build_runner: ^1.7.2
+  built_value_generator: ^7.0.0
+  grinder: ^0.8.3
+  source_gen: ^0.9.4
+  test: ^1.9.4
+  tuneup: ^0.3.6
+
+flutter:
+  uses-material-design: true

experimental/desktop_photo_search/test/unsplash_test.dart

@@ -0,0 +1,347 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:desktop_photo_search/src/unsplash/photo.dart';
+import 'package:desktop_photo_search/src/unsplash/search_photos_response.dart';
+import 'package:desktop_photo_search/src/unsplash/unsplash.dart';
+import 'package:desktop_photo_search/src/unsplash/user.dart';
+import 'package:http/http.dart';
+import 'package:http/testing.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('Photo.fromJson', () {
+    const input = '''
+{
+  "id": "Dwu85P9SOIk",
+  "created_at": "2016-05-03T11:00:28-04:00",
+  "updated_at": "2016-07-10T11:00:01-05:00",
+  "width": 2448,
+  "height": 3264,
+  "color": "#6E633A",
+  "downloads": 1345,
+  "likes": 24,
+  "liked_by_user": false,
+  "description": "A man drinking a coffee.",
+  "exif": {
+    "make": "Canon",
+    "model": "Canon EOS 40D",
+    "exposure_time": "0.011111111111111112",
+    "aperture": "4.970854",
+    "focal_length": "37",
+    "iso": 100
+  },
+  "location": {
+    "city": "Montreal",
+    "country": "Canada",
+    "position": {
+      "latitude": 45.4732984,
+      "longitude": -73.6384879
+    }
+  },
+  "tags": [
+    { "title": "man" },
+    { "title": "drinking" },
+    { "title": "coffee" }
+  ],
+  "current_user_collections": [
+    {
+      "id": 206,
+      "title": "Makers: Cat and Ben",
+      "published_at": "2016-01-12T18:16:09-05:00",
+      "updated_at": "2016-07-10T11:00:01-05:00",
+      "cover_photo": null,
+      "user": null
+    }
+  ],
+  "urls": {
+    "raw": "https://images.unsplash.com/photo-1417325384643-aac51acc9e5d",
+    "full": "https://images.unsplash.com/photo-1417325384643-aac51acc9e5d?q=75&fm=jpg",
+    "regular": "https://images.unsplash.com/photo-1417325384643-aac51acc9e5d?q=75&fm=jpg&w=1080&fit=max",
+    "small": "https://images.unsplash.com/photo-1417325384643-aac51acc9e5d?q=75&fm=jpg&w=400&fit=max",
+    "thumb": "https://images.unsplash.com/photo-1417325384643-aac51acc9e5d?q=75&fm=jpg&w=200&fit=max"
+  },
+  "links": {
+    "self": "https://api.unsplash.com/photos/Dwu85P9SOIk",
+    "html": "https://unsplash.com/photos/Dwu85P9SOIk",
+    "download": "https://unsplash.com/photos/Dwu85P9SOIk/download",
+    "download_location": "https://api.unsplash.com/photos/Dwu85P9SOIk/download"
+  },
+  "user": {
+    "id": "QPxL2MGqfrw",
+    "updated_at": "2016-07-10T11:00:01-05:00",
+    "username": "exampleuser",
+    "name": "Joe Example",
+    "portfolio_url": "https://example.com/",
+    "bio": "Just an everyday Joe",
+    "location": "Montreal",
+    "total_likes": 5,
+    "total_photos": 10,
+    "total_collections": 13,
+    "links": {
+      "self": "https://api.unsplash.com/users/exampleuser",
+      "html": "https://unsplash.com/exampleuser",
+      "photos": "https://api.unsplash.com/users/exampleuser/photos",
+      "likes": "https://api.unsplash.com/users/exampleuser/likes",
+      "portfolio": "https://api.unsplash.com/users/exampleuser/portfolio"
+    }
+  }
+}
+      ''';
+
+    final photo = Photo.fromJson(input);
+    expect(photo.id, 'Dwu85P9SOIk');
+    expect(photo.createdAt, '2016-05-03T11:00:28-04:00');
+    expect(photo.updatedAt, '2016-07-10T11:00:01-05:00');
+    expect(photo.width, 2448);
+    expect(photo.height, 3264);
+    expect(photo.color, '#6E633A');
+    expect(photo.downloads, 1345);
+    expect(photo.likedByUser, false);
+    expect(photo.exif.make, 'Canon');
+    expect(photo.exif.iso, 100);
+    expect(photo.location.city, 'Montreal');
+    expect(photo.location.country, 'Canada');
+    expect(photo.location.position.latitude, 45.4732984);
+    expect(photo.location.position.longitude, -73.6384879);
+  });
+
+  test('User.fromJson', () {
+    const input = '''
+{
+  "id": "pXhwzz1JtQU",
+  "updated_at": "2016-07-10T11:00:01-05:00",
+  "username": "jimmyexample",
+  "name": "James Example",
+  "first_name": "James",
+  "last_name": "Example",
+  "instagram_username": "instantgrammer",
+  "twitter_username": "jimmy",
+  "portfolio_url": null,
+  "bio": "The user's bio",
+  "location": "Montreal, Qc",
+  "total_likes": 20,
+  "total_photos": 10,
+  "total_collections": 5,
+  "followed_by_user": false,
+  "followers_count": 300,
+  "following_count": 25,
+  "downloads": 225974,
+  "profile_image": {
+    "small": "https://images.unsplash.com/face-springmorning.jpg?q=80&fm=jpg&crop=faces&fit=crop&h=32&w=32",
+    "medium": "https://images.unsplash.com/face-springmorning.jpg?q=80&fm=jpg&crop=faces&fit=crop&h=64&w=64",
+    "large": "https://images.unsplash.com/face-springmorning.jpg?q=80&fm=jpg&crop=faces&fit=crop&h=128&w=128"
+  },
+  "badge": {
+    "title": "Book contributor",
+    "primary": true,
+    "slug": "book-contributor",
+    "link": "https://book.unsplash.com"
+  },
+  "links": {
+    "self": "https://api.unsplash.com/users/jimmyexample",
+    "html": "https://unsplash.com/jimmyexample",
+    "photos": "https://api.unsplash.com/users/jimmyexample/photos",
+    "likes": "https://api.unsplash.com/users/jimmyexample/likes",
+    "portfolio": "https://api.unsplash.com/users/jimmyexample/portfolio"
+  }
+}
+      ''';
+
+    final user = User.fromJson(input);
+    expect(user.id, 'pXhwzz1JtQU');
+  });
+
+  test('SearchPhotosResponse.fromJson', () {
+    const input = '''
+{
+  "total": 133,
+  "total_pages": 7,
+  "results": [
+    {
+      "id": "eOLpJytrbsQ",
+      "created_at": "2014-11-18T14:35:36-05:00",
+      "width": 4000,
+      "height": 3000,
+      "color": "#A7A2A1",
+      "likes": 286,
+      "liked_by_user": false,
+      "description": "A man drinking a coffee.",
+      "user": {
+        "id": "Ul0QVz12Goo",
+        "username": "ugmonk",
+        "name": "Jeff Sheldon",
+        "first_name": "Jeff",
+        "last_name": "Sheldon",
+        "instagram_username": "instantgrammer",
+        "twitter_username": "ugmonk",
+        "portfolio_url": "http://ugmonk.com/",
+        "profile_image": {
+          "small": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=32&w=32&s=7cfe3b93750cb0c93e2f7caec08b5a41",
+          "medium": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=64&w=64&s=5a9dc749c43ce5bd60870b129a40902f",
+          "large": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=128&w=128&s=32085a077889586df88bfbe406692202"
+        },
+        "links": {
+          "self": "https://api.unsplash.com/users/ugmonk",
+          "html": "http://unsplash.com/@ugmonk",
+          "photos": "https://api.unsplash.com/users/ugmonk/photos",
+          "likes": "https://api.unsplash.com/users/ugmonk/likes"
+        }
+      },
+      "current_user_collections": [],
+      "urls": {
+        "raw": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f",
+        "full": "https://hd.unsplash.com/photo-1416339306562-f3d12fefd36f",
+        "regular": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&s=92f3e02f63678acc8416d044e189f515",
+        "small": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=263af33585f9d32af39d165b000845eb",
+        "thumb": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=200&fit=max&s=8aae34cf35df31a592f0bef16e6342ef"
+      },
+      "links": {
+        "self": "https://api.unsplash.com/photos/eOLpJytrbsQ",
+        "html": "http://unsplash.com/photos/eOLpJytrbsQ",
+        "download": "http://unsplash.com/photos/eOLpJytrbsQ/download"
+      }
+    }
+  ]
+}
+      ''';
+
+    final response = SearchPhotosResponse.fromJson(input);
+    expect(response.total, 133);
+    expect(response.totalPages, 7);
+    expect(response.results[0].id, 'eOLpJytrbsQ');
+    expect(response.results[0].user.id, 'Ul0QVz12Goo');
+  });
+
+  group('Unsplash API client', () {
+    test('handles success', () async {
+      const searchPhotosResponseBody = '''
+{
+  "total": 133,
+  "total_pages": 7,
+  "results": [
+    {
+      "id": "eOLpJytrbsQ",
+      "created_at": "2014-11-18T14:35:36-05:00",
+      "width": 4000,
+      "height": 3000,
+      "color": "#A7A2A1",
+      "likes": 286,
+      "liked_by_user": false,
+      "description": "A man drinking a coffee.",
+      "user": {
+        "id": "Ul0QVz12Goo",
+        "username": "ugmonk",
+        "name": "Jeff Sheldon",
+        "first_name": "Jeff",
+        "last_name": "Sheldon",
+        "instagram_username": "instantgrammer",
+        "twitter_username": "ugmonk",
+        "portfolio_url": "http://ugmonk.com/",
+        "profile_image": {
+          "small": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=32&w=32&s=7cfe3b93750cb0c93e2f7caec08b5a41",
+          "medium": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=64&w=64&s=5a9dc749c43ce5bd60870b129a40902f",
+          "large": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=128&w=128&s=32085a077889586df88bfbe406692202"
+        },
+        "links": {
+          "self": "https://api.unsplash.com/users/ugmonk",
+          "html": "http://unsplash.com/@ugmonk",
+          "photos": "https://api.unsplash.com/users/ugmonk/photos",
+          "likes": "https://api.unsplash.com/users/ugmonk/likes"
+        }
+      },
+      "current_user_collections": [],
+      "urls": {
+        "raw": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f",
+        "full": "https://hd.unsplash.com/photo-1416339306562-f3d12fefd36f",
+        "regular": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&s=92f3e02f63678acc8416d044e189f515",
+        "small": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=263af33585f9d32af39d165b000845eb",
+        "thumb": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=200&fit=max&s=8aae34cf35df31a592f0bef16e6342ef"
+      },
+      "links": {
+        "self": "https://api.unsplash.com/photos/eOLpJytrbsQ",
+        "html": "http://unsplash.com/photos/eOLpJytrbsQ",
+        "download": "http://unsplash.com/photos/eOLpJytrbsQ/download"
+      }
+    }
+  ]
+}
+      ''';
+
+      final httpClient = MockClient((req) async {
+        return Response(
+          searchPhotosResponseBody,
+          200,
+          request: req,
+          headers: {'content-type': 'application/json'},
+        );
+      });
+
+      final unsplashClient = Unsplash(
+        accessKey: 'not-an-access-key',
+        httpClient: httpClient,
+      );
+
+      final response = await unsplashClient.searchPhotos(query: 'red');
+
+      expect(response.total, 133);
+      expect(response.totalPages, 7);
+      expect(response.results[0].id, 'eOLpJytrbsQ');
+      expect(response.results[0].user.id, 'Ul0QVz12Goo');
+    });
+
+    test('handles failure', () async {
+      const apiError =
+          '{"errors":["OAuth error: The access token is invalid"]}';
+
+      final httpClient = MockClient((req) async {
+        return Response(
+          apiError,
+          401,
+          request: req,
+          headers: {'content-type': 'application/json'},
+        );
+      });
+
+      final unsplashClient = Unsplash(
+        accessKey: 'not-an-access-key',
+        httpClient: httpClient,
+      );
+
+      try {
+        await unsplashClient.searchPhotos(query: 'red');
+        fail('UnsplashException should have been thrown');
+      } on UnsplashException catch (e) {
+        expect(e.toString(),
+            'UnsplashException: OAuth error: The access token is invalid');
+      }
+    });
+
+    test('handles broken JSON', () async {
+      const apiError = '{"tot'; // truncated JSON.
+
+      final httpClient = MockClient((req) async {
+        return Response(
+          apiError,
+          401,
+          request: req,
+          headers: {'content-type': 'application/json'},
+        );
+      });
+
+      final unsplashClient = Unsplash(
+        accessKey: 'not-an-access-key',
+        httpClient: httpClient,
+      );
+
+      try {
+        await unsplashClient.searchPhotos(query: 'red');
+        fail('UnsplashException should have been thrown');
+      } on UnsplashException catch (e) {
+        expect(e.toString(),
+            'UnsplashException: Invalid JSON received');
+      }
+    });
+  });
+}

experimental/desktop_photo_search/test/widget_test.dart

@@ -0,0 +1,130 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:typed_data';
+
+import 'package:desktop_photo_search/src/unsplash/photo.dart';
+import 'package:flutter/material.dart';
+import 'package:desktop_photo_search/src/model/photo_search_model.dart';
+import 'package:desktop_photo_search/src/unsplash/search_photos_response.dart';
+import 'package:desktop_photo_search/src/unsplash/unsplash.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:provider/provider.dart';
+
+class FakeUnsplash implements Unsplash {
+  static const searchPhotosResponse = '''
+{
+  "total": 133,
+  "total_pages": 7,
+  "results": [
+    {
+      "id": "eOLpJytrbsQ",
+      "created_at": "2014-11-18T14:35:36-05:00",
+      "width": 4000,
+      "height": 3000,
+      "color": "#A7A2A1",
+      "likes": 286,
+      "liked_by_user": false,
+      "description": "A man drinking a coffee.",
+      "user": {
+        "id": "Ul0QVz12Goo",
+        "username": "ugmonk",
+        "name": "Jeff Sheldon",
+        "first_name": "Jeff",
+        "last_name": "Sheldon",
+        "instagram_username": "instantgrammer",
+        "twitter_username": "ugmonk",
+        "portfolio_url": "http://ugmonk.com/",
+        "profile_image": {
+          "small": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=32&w=32&s=7cfe3b93750cb0c93e2f7caec08b5a41",
+          "medium": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=64&w=64&s=5a9dc749c43ce5bd60870b129a40902f",
+          "large": "https://images.unsplash.com/profile-1441298803695-accd94000cac?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&fit=crop&h=128&w=128&s=32085a077889586df88bfbe406692202"
+        },
+        "links": {
+          "self": "https://api.unsplash.com/users/ugmonk",
+          "html": "http://unsplash.com/@ugmonk",
+          "photos": "https://api.unsplash.com/users/ugmonk/photos",
+          "likes": "https://api.unsplash.com/users/ugmonk/likes"
+        }
+      },
+      "current_user_collections": [],
+      "urls": {
+        "raw": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f",
+        "full": "https://hd.unsplash.com/photo-1416339306562-f3d12fefd36f",
+        "regular": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&s=92f3e02f63678acc8416d044e189f515",
+        "small": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=263af33585f9d32af39d165b000845eb",
+        "thumb": "https://images.unsplash.com/photo-1416339306562-f3d12fefd36f?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=200&fit=max&s=8aae34cf35df31a592f0bef16e6342ef"
+      },
+      "links": {
+        "self": "https://api.unsplash.com/photos/eOLpJytrbsQ",
+        "html": "http://unsplash.com/photos/eOLpJytrbsQ",
+        "download": "http://unsplash.com/photos/eOLpJytrbsQ/download"
+      }
+    }
+  ]
+}
+      ''';
+
+  @override
+  Future<SearchPhotosResponse> searchPhotos(
+      {String query,
+      num page = 1,
+      num perPage = 10,
+      List<num> collections = const [],
+      SearchPhotosOrientation orientation}) async {
+    return SearchPhotosResponse.fromJson(searchPhotosResponse);
+  }
+
+  @override
+  Future<Uint8List> download(Photo photo) {
+    throw UnimplementedError();
+  }
+}
+
+const fabKey = Key('fab');
+
+class PhotoSearchModelTester extends StatelessWidget {
+  const PhotoSearchModelTester(this.query);
+  final String query;
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: FlatButton(
+        key: fabKey,
+        onPressed: () async {
+          await Provider.of<PhotoSearchModel>(context).addSearch(query);
+        },
+        child: const Text('Search for a Photo'),
+      ),
+    );
+  }
+}
+
+void main() {
+  group('search_list', () {
+    testWidgets('starts empty', (tester) async {
+      final unsplashSearches = PhotoSearchModel(FakeUnsplash());
+      final testWidget = ChangeNotifierProvider<PhotoSearchModel>(
+        create: (context) => unsplashSearches,
+        child: const PhotoSearchModelTester('clouds'),
+      );
+      await tester.pumpWidget(testWidget);
+      expect(unsplashSearches.entries.length, 0);
+    });
+
+    testWidgets('addSearch adds searches', (tester) async {
+      final unsplashSearches = PhotoSearchModel(FakeUnsplash());
+      final testWidget = ChangeNotifierProvider<PhotoSearchModel>(
+        create: (context) => unsplashSearches,
+        child: const PhotoSearchModelTester('clouds'),
+      );
+      await tester.pumpWidget(testWidget);
+      await tester.tap(find.byKey(fabKey));
+      await tester.tap(find.byKey(fabKey));
+      await tester.pumpAndSettle();
+
+      expect(unsplashSearches.entries.length, 2);
+    });
+  });
+}

experimental/desktop_photo_search/tool/grind.dart

@@ -0,0 +1,72 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:async/async.dart' show StreamGroup;
+import 'package:grinder/grinder.dart';
+
+void main(List<String> args) => grind(args);
+
+@DefaultTask()
+@Depends(pubGet, generateJsonBindings, analyzeSource, test)
+void build() {}
+
+@Task()
+Future<void> pubGet() async => _logProcessOutput(
+      Process.start(
+        'flutter',
+        ['pub', 'get'],
+      ),
+    );
+
+@Task()
+Future<void> generateJsonBindings() async => _logProcessOutput(
+      Process.start(
+        'flutter',
+        ['pub', 'run', 'build_runner', 'build', '--delete-conflicting-outputs'],
+      ),
+    );
+
+@Task()
+Future<void> watch() async => _logProcessOutput(
+      Process.start(
+        'flutter',
+        ['pub', 'run', 'build_runner', 'watch'],
+      ),
+    );
+
+@Task()
+Future<void> analyzeSource() async => _logProcessOutput(
+      Process.start(
+        'flutter',
+        ['pub', 'run', 'tuneup'],
+      ),
+    );
+
+@Task()
+Future<void> test() async => _logProcessOutput(
+      Process.start(
+        'flutter',
+        ['test'],
+      ),
+    );
+
+@Task()
+Future<void> clean() => _logProcessOutput(
+      Process.start(
+        'flutter',
+        ['clean'],
+      ),
+    );
+
+Future<void> _logProcessOutput(Future<Process> proc) async {
+  final process = await proc;
+  final output = StreamGroup.merge([process.stdout, process.stderr]);
+  await for (final message in output) {
+    log(utf8.decode(message));
+  }
+}