Sharing images from other apps now supported.

app/src/main/AndroidManifest.xml

@@ -38,7 +38,18 @@
         <activity android:name=".MainActivity" />
         <activity
             android:name=".ComposeActivity"
-            android:windowSoftInputMode="stateVisible|adjustResize" />
+            android:windowSoftInputMode="stateVisible|adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND_MULTIPLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+        </activity>
         <activity android:name=".ViewVideoActivity" android:configChanges="orientation|keyboardHidden|screenSize" />
         <activity android:name=".ViewThreadActivity" />
         <activity android:name=".ViewTagActivity" />

app/src/main/java/com/keylesspalace/tusky/BaseActivity.java

@@ -159,8 +159,8 @@ public class BaseActivity extends AppCompatActivity {
                 getString(R.string.preferences_file_key), Context.MODE_PRIVATE);
         String domain = preferences.getString("domain", null);
         String accessToken = preferences.getString("accessToken", null);
-        if (domain != null && accessToken != null) {
-            Intent intent = new Intent(this, MainActivity.class);
+        if (domain == null || accessToken == null) {
+            Intent intent = new Intent(this, LoginActivity.class);
             intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
             startActivity(intent);
             finish();

app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java

@@ -81,6 +81,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.Date;
 import java.util.Iterator;
 import java.util.List;
@@ -365,6 +366,8 @@ public class  ComposeActivity extends BaseActivity implements ComposeOptionsFrag
             }
         });
 
+        Intent intent = getIntent();
+
         String startingVisibility;
         boolean startingHideText;
         ArrayList<SavedQueuedMedia> savedMediaQueued = null;
@@ -391,7 +394,6 @@ public class  ComposeActivity extends BaseActivity implements ComposeOptionsFrag
 
         updateNsfwButtonColor();
 
-        Intent intent = getIntent();
         String[] mentionedUsernames = null;
         inReplyToId = null;
         if (intent != null) {
@@ -482,6 +484,39 @@ public class  ComposeActivity extends BaseActivity implements ComposeOptionsFrag
             for (SavedQueuedMedia item : savedMediaQueued) {
                 addMediaToQueue(item.type, item.preview, item.uri, item.mediaSize);
             }
+        } else if (savedInstanceState == null) {
+            /* Get incoming images being sent through a share action from another app. Only do this
+             * when savedInstanceState is null, otherwise both the images from the intent and the
+             * instance state will be re-queued. */
+            String type = intent.getType();
+            if (type != null && type.startsWith("image/")) {
+                List<Uri> uriList = new ArrayList<>();
+                switch (intent.getAction()) {
+                    case Intent.ACTION_SEND: {
+                        Uri uri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
+                        if (uri != null) {
+                            uriList.add(uri);
+                        }
+                        break;
+                    }
+                    case Intent.ACTION_SEND_MULTIPLE: {
+                        ArrayList<Uri> list = intent.getParcelableArrayListExtra(
+                                Intent.EXTRA_STREAM);
+                        if (list != null) {
+                            for (Uri uri : list) {
+                                if (uri != null) {
+                                    uriList.add(uri);
+                                }
+                            }
+                        }
+                        break;
+                    }
+                }
+                for (Uri uri : uriList) {
+                    long mediaSize = getMediaSize(getContentResolver(), uri);
+                    pickMedia(uri, mediaSize);
+                }
+            }
         }
     }
 
@@ -1064,13 +1099,9 @@ public class  ComposeActivity extends BaseActivity implements ComposeOptionsFrag
         }
     }
 
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        super.onActivityResult(requestCode, resultCode, data);
-        if (requestCode == MEDIA_PICK_RESULT && resultCode == RESULT_OK && data != null) {
-            Uri uri = data.getData();
+    private static long getMediaSize(ContentResolver contentResolver, Uri uri) {
         long mediaSize;
-            Cursor cursor = getContentResolver().query(uri, null, null, null, null);
+        Cursor cursor = contentResolver.query(uri, null, null, null, null);
         if (cursor != null) {
             int sizeIndex = cursor.getColumnIndex(OpenableColumns.SIZE);
             cursor.moveToFirst();
@@ -1079,6 +1110,15 @@ public class  ComposeActivity extends BaseActivity implements ComposeOptionsFrag
         } else {
             mediaSize = MEDIA_SIZE_UNKNOWN;
         }
+        return mediaSize;
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == MEDIA_PICK_RESULT && resultCode == RESULT_OK && data != null) {
+            Uri uri = data.getData();
+            long mediaSize = getMediaSize(getContentResolver(), uri);
             pickMedia(uri, mediaSize);
         }
     }