commit ac05cb134339a32c8ebf6f57412f0aac7481cc4f
author Steven Ng <stevenckng@google.com> Wed May 05 15:37:00 2021 +0100
committer Steven Ng <stevenckng@google.com> Wed May 05 15:38:28 2021 +0100
tree 6ae07cf8b5027b790d2b8cbe1cb40ad05aeead79
parent e5bd97c5f8bd3d0c7fe8b0ed0ad5ff053057d7c8

Fix class cast exception in a11y service for widget resize action

Test: Enable talkback. Then navigate to a widget. Trigger talkback
      menu > actions > move. Able to move a widget without crash.
Bug: 186999201
Change-Id: Ic6a66fefd643443e3d5a8839e6f2fe10c946dab2

src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java

diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index a5852ba..dbdfb2b 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -32,6 +32,7 @@
 import com.android.launcher3.Workspace;
 import com.android.launcher3.dragndrop.DragController.DragListener;
 import com.android.launcher3.dragndrop.DragOptions;
+import com.android.launcher3.dragndrop.DragView;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.keyboard.KeyboardDragAndDropView;
 import com.android.launcher3.model.data.AppInfo;
@@ -290,7 +291,12 @@
             return actions;
         }
 
-        CellLayout layout = (CellLayout) host.getParent().getParent();
+        CellLayout layout;
+        if (host.getParent() instanceof DragView) {
+            layout = (CellLayout) ((DragView) host.getParent()).getContentViewParent().getParent();
+        } else {
+            layout = (CellLayout) host.getParent().getParent();
+        }
         if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_HORIZONTAL) != 0) {
             if (layout.isRegionVacant(info.cellX + info.spanX, info.cellY, 1, info.spanY) ||
                     layout.isRegionVacant(info.cellX - 1, info.cellY, 1, info.spanY)) {