Added share files into existing draft

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

@@ -30,6 +30,7 @@ import android.text.TextUtils;
 
 import androidx.core.app.TaskStackBuilder;
 import androidx.core.net.MailTo;
+import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.LifecycleOwner;
@@ -54,14 +55,14 @@ public class ActivityCompose extends ActivityBase implements FragmentManager.OnB
         getSupportFragmentManager().addOnBackStackChangedListener(this);
 
         if (getSupportFragmentManager().getBackStackEntryCount() == 0)
-            handle(getIntent());
+            handle(getIntent(), true);
     }
 
     @Override
     protected void onNewIntent(Intent intent) {
         super.onNewIntent(intent);
         setIntent(intent);
-        handle(intent);
+        handle(intent, false);
     }
 
     @Override
@@ -84,13 +85,13 @@ public class ActivityCompose extends ActivityBase implements FragmentManager.OnB
         }
     }
 
-    private void handle(Intent intent) {
+    private void handle(Intent intent, boolean create) {
         Bundle args;
         String action = intent.getAction();
+        Log.i("Handle action=" + action + " create=" + create + " " + this);
+
         if (isShared(action)) {
             args = new Bundle();
-            args.putString("action", "new");
-            args.putLong("account", -1);
 
             Uri uri = intent.getData();
             if (uri != null && "mailto".equalsIgnoreCase(uri.getScheme())) {
@@ -204,10 +205,27 @@ public class ActivityCompose extends ActivityBase implements FragmentManager.OnB
         } else
             args = intent.getExtras();
 
+        FragmentManager fm = getSupportFragmentManager();
+
+        if (!create &&
+                args.size() == 1 && args.containsKey("attachments")) {
+            List<Fragment> fragments = fm.getFragments();
+            if (fragments.size() == 1) {
+                ((FragmentCompose) fragments.get(0)).onSharedAttachments(
+                        args.getParcelableArrayList("attachments"));
+                return;
+            }
+        }
+
+        if (isShared(action)) {
+            args.putString("action", "new");
+            args.putLong("account", -1);
+        }
+
         FragmentCompose fragment = new FragmentCompose();
         fragment.setArguments(args);
 
-        FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
+        FragmentTransaction fragmentTransaction = fm.beginTransaction();
         fragmentTransaction.replace(R.id.content_frame, fragment).addToBackStack("compose");
         fragmentTransaction.commit();
     }

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

@@ -2852,6 +2852,62 @@ public class FragmentCompose extends FragmentBase {
         }.setExecutor(executor).execute(this, args, "compose:attachment:add");
     }
 
+    void onSharedAttachments(ArrayList<Uri> uris) {
+        Bundle args = new Bundle();
+        args.putLong("id", working);
+        args.putParcelableArrayList("uris", uris);
+
+        new SimpleTask<ArrayList<Uri>>() {
+            @Override
+            protected ArrayList<Uri> onExecute(Context context, Bundle args) throws Throwable {
+                long id = args.getLong("id");
+                List<Uri> uris = args.getParcelableArrayList("uris");
+
+                ArrayList<Uri> images = new ArrayList<>();
+                for (Uri uri : uris)
+                    try {
+                        UriInfo info = getInfo(uri, context);
+                        if (info.isImage())
+                            images.add(uri);
+                        else
+                            addAttachment(context, id, uri, false, 0, false);
+                    } catch (IOException ex) {
+                        Log.e(ex);
+                    }
+
+                return images;
+            }
+
+            @Override
+            protected void onExecuted(Bundle args, ArrayList<Uri> images) {
+                if (images.size() == 0)
+                    return;
+
+                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
+                boolean image_dialog = prefs.getBoolean("image_dialog", true);
+
+                if (image_dialog) {
+                    Helper.hideKeyboard(view);
+
+                    Bundle aargs = new Bundle();
+                    aargs.putInt("title", android.R.string.ok);
+                    aargs.putParcelableArrayList("images", images);
+
+                    FragmentDialogAddImage fragment = new FragmentDialogAddImage();
+                    fragment.setArguments(aargs);
+                    fragment.setTargetFragment(FragmentCompose.this, REQUEST_SHARED);
+                    fragment.show(getParentFragmentManager(), "compose:shared");
+                } else
+                    onAddImageFile(images);
+            }
+
+            @Override
+            protected void onException(Bundle args, Throwable ex) {
+                Log.unexpectedError(getParentFragmentManager(), ex);
+            }
+        }.execute(this, args, "compose:shared");
+    }
+
     private List<Uri> getUris(Intent data) {
         List<Uri> result = new ArrayList<>();