Support Accessibility workspace addition for WorkspaceItemInfo

Bug: 192678946
Test: Manual using TalkBack
Change-Id: I1d0d06ccac934eb80dba7670e93ec631c12e5074
diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index 2032b26..157df5d 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -162,7 +162,8 @@
             }
         }
 
-        if ((item instanceof AppInfo) || (item instanceof PendingAddItemInfo)) {
+        if ((item instanceof AppInfo) || (item instanceof WorkspaceItemInfo)
+                || (item instanceof PendingAddItemInfo)) {
             out.add(mActions.get(ADD_TO_WORKSPACE));
         }
     }
@@ -244,6 +245,13 @@
                     mLauncher.addPendingItem(info, Favorites.CONTAINER_DESKTOP,
                             screenId, coordinates, info.spanX, info.spanY);
                 }
+                else if (item instanceof WorkspaceItemInfo) {
+                    WorkspaceItemInfo info = ((WorkspaceItemInfo) item).clone();
+                    mLauncher.getModelWriter().addItemToDatabase(info,
+                            Favorites.CONTAINER_DESKTOP,
+                            screenId, coordinates[0], coordinates[1]);
+                    mLauncher.bindItems(Collections.singletonList(info), true, true);
+                }
             }));
             return true;
         } else if (action == MOVE_TO_WORKSPACE) {
diff --git a/src/com/android/launcher3/model/data/WorkspaceItemInfo.java b/src/com/android/launcher3/model/data/WorkspaceItemInfo.java
index 690e904..a395709 100644
--- a/src/com/android/launcher3/model/data/WorkspaceItemInfo.java
+++ b/src/com/android/launcher3/model/data/WorkspaceItemInfo.java
@@ -204,7 +204,7 @@
     }
 
     @Override
-    public ItemInfoWithIcon clone() {
+    public WorkspaceItemInfo clone() {
         return new WorkspaceItemInfo(this);
     }
 }