Widget unified image URIs

app/src/main/java/eu/faircode/email/WidgetUnifiedRemoteViewsFactory.java

@@ -23,11 +23,13 @@ import android.appwidget.AppWidgetManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
 import android.content.res.ColorStateList;
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.Typeface;
-import android.graphics.drawable.Icon;
+import android.net.Uri;
 import android.os.Build;
 import android.text.SpannableString;
 import android.text.Spanned;
@@ -43,6 +45,11 @@ import androidx.core.content.ContextCompat;
 import androidx.core.graphics.ColorUtils;
 import androidx.preference.PreferenceManager;
 
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -173,13 +180,39 @@ public class WidgetUnifiedRemoteViewsFactory implements RemoteViewsService.Remot
             db.endTransaction();
         }
 
+        File dir = new File(Helper.getExternalFilesDir(context), "avatars");
+        dir.mkdirs();
+
         hasColor = false;
         allColors = (account_color > 0);
-        for (TupleMessageWidget message : messages)
+        for (TupleMessageWidget message : messages) {
             if (message.accountColor == null)
                 allColors = false;
             else
                 hasColor = true;
+
+            File file = new File(dir, message.id + ".png");
+            if (!file.exists()) {
+                ContactInfo[] info = ContactInfo.get(context,
+                        message.account, null,
+                        message.bimi_selector, Boolean.TRUE.equals(message.dmarc),
+                        message.isForwarder() ? message.submitter : message.from);
+                Bitmap bm = (info.length == 0 ? null : info[0].getPhotoBitmap());
+                if (bm != null) {
+                    int dp36 = Helper.dp2pixels(context, 36);
+                    bm = Bitmap.createScaledBitmap(bm, dp36, bm.getHeight() * dp36 / bm.getWidth(), true);
+                }
+
+                if (bm != null) {
+                    try (OutputStream os = new BufferedOutputStream(new FileOutputStream(file))) {
+                        bm.compress(Bitmap.CompressFormat.PNG, ImageHelper.DEFAULT_PNG_COMPRESSION, os);
+                    } catch (IOException ex) {
+                        Log.e(ex);
+                    }
+                }
+            }
+
+        }
     }
 
     @Override
@@ -249,21 +282,18 @@ public class WidgetUnifiedRemoteViewsFactory implements RemoteViewsService.Remot
             views.setViewVisibility(R.id.stripe, hasColor && account_color == 1 ? View.VISIBLE : View.GONE);
 
             if (avatars) {
-                ContactInfo[] info = ContactInfo.get(context,
-                        message.account, null,
-                        message.bimi_selector, Boolean.TRUE.equals(message.dmarc),
-                        message.isForwarder() ? message.submitter : message.from);
-                Bitmap bm = (info.length == 0 ? null : info[0].getPhotoBitmap());
-                if (bm != null) {
-                    int w = bm.getWidth();
-                    int h = bm.getHeight();
-                    int dp36 = Helper.dp2pixels(context, 36);
-                    bm = Bitmap.createScaledBitmap(bm, dp36, bm.getHeight() * dp36 / bm.getWidth(), true);
-                }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.BAKLAVA)
-                    views.setImageViewBitmap(R.id.avatar, bm);
-                else
-                    views.setImageViewIcon(R.id.avatar, bm == null ? null : Icon.createWithBitmap(bm));
+                File dir = new File(Helper.getExternalFilesDir(context), "avatars");
+                File file = new File(dir, message.id + ".png");
+                if (file.exists()) {
+                    Uri uri = FileProviderEx.getUri(context, BuildConfig.APPLICATION_ID, file);
+                    Intent intent = new Intent(Intent.ACTION_MAIN);
+                    intent.addCategory(Intent.CATEGORY_HOME);
+                    List<ResolveInfo> resInfoList = context.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
+                    for (ResolveInfo resolveInfo : resInfoList)
+                        context.grantUriPermission(resolveInfo.activityInfo.packageName, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
+                    views.setImageViewUri(R.id.avatar, uri);
+                } else
+                    views.setImageViewBitmap(R.id.avatar, null);
             }
             views.setViewVisibility(R.id.avatar, avatars ? View.VISIBLE : View.GONE);
 

app/src/main/java/eu/faircode/email/WorkerCleanup.java

@@ -225,6 +225,7 @@ public class WorkerCleanup extends Worker {
             cleanupMessageFiles(db, manual, Helper.ensureExists(context, "encryption").listFiles());
             cleanupMessageFiles(db, manual, Helper.ensureExists(context, "photo").listFiles());
             cleanupMessageFiles(db, manual, Helper.ensureExists(context, "calendar").listFiles());
+            cleanupMessageFiles(db, manual, new File(Helper.getExternalFilesDir(context), "avatars").listFiles());
 
             // Cleanup raw message files
             if (!download_eml) {

app/src/main/res/xml/fileprovider_paths.xml

@@ -24,4 +24,7 @@
     <files-path
         name="shared"
         path="shared" />
+    <external-files-path
+        name="avatars"
+        path="avatars" />
 </paths>