Merge "Support talkback for functions on the caption view."

core/java/com/android/internal/widget/DecorCaptionView.java

@@ -123,6 +123,8 @@ public class DecorCaptionView extends ViewGroup implements View.OnTouchListener,
     private void init(Context context) {
         mDragSlop = ViewConfiguration.get(context).getScaledTouchSlop();
         mGestureDetector = new GestureDetector(context, this);
+        setContentDescription(context.getString(R.string.accessibility_freeform_caption,
+                context.getPackageManager().getApplicationLabel(context.getApplicationInfo())));
     }
 
     @Override

core/res/res/values/strings.xml

@@ -5320,4 +5320,7 @@
     <string name="accessibility_system_action_lock_screen_label">Lock Screen</string>
     <!-- Label for taking screenshot action [CHAR LIMIT=NONE] -->
     <string name="accessibility_system_action_screenshot_label">Screenshot</string>
+
+    <!-- Accessibility description of caption view -->
+    <string name="accessibility_freeform_caption"><xliff:g id="app_name">%1$s</xliff:g> app in Pop-up window.</string>
 </resources>

core/res/res/values/symbols.xml

@@ -3763,4 +3763,6 @@
   <java-symbol type="string" name="accessibility_system_action_recents_label" />
   <java-symbol type="string" name="accessibility_system_action_screenshot_label" />
   <java-symbol type="string" name="accessibility_system_action_toggle_split_screen_label" />
+
+  <java-symbol type="string" name="accessibility_freeform_caption" />
 </resources>