[a11y] Add FLAG_NOT_PINNABLE and modify supportAddToWorkSpace.

// play uninstalled app
Bug: 286998395
Bug: 287156208
Bug: 287157282
// contact
Bug: 287362865
Bug: 287370843
Bug: 287372663
// clock
Bug: 287166186
Bug: 287166771
Bug: 287167527
Test: manual
Flag: N/A

Change-Id: I859deba6218e232a232f009793044ca4be2cab19

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

@@ -7,6 +7,7 @@ import static android.view.accessibility.AccessibilityNodeInfo.ACTION_LONG_CLICK
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.anim.AnimatorListeners.forSuccessCallback;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.IGNORE;
+import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_NOT_PINNABLE;
 
 import android.appwidget.AppWidgetProviderInfo;
 import android.graphics.Point;
@@ -124,12 +125,19 @@ public class LauncherAccessibilityDelegate extends BaseAccessibilityDelegate<Lau
             }
         }
 
-        if ((item instanceof WorkspaceItemFactory) || (item instanceof WorkspaceItemInfo)
-                || (item instanceof PendingAddItemInfo)) {
+        if (supportAddToWorkSpace(item)) {
             out.add(mActions.get(ADD_TO_WORKSPACE));
         }
     }
 
+    private boolean supportAddToWorkSpace(ItemInfo item) {
+        return (item instanceof WorkspaceItemFactory)
+                || ((item instanceof WorkspaceItemInfo)
+                    && (((WorkspaceItemInfo) item).runtimeStatusFlags & FLAG_NOT_PINNABLE) == 0)
+                || ((item instanceof PendingAddItemInfo)
+                    && (((PendingAddItemInfo) item).runtimeStatusFlags & FLAG_NOT_PINNABLE) == 0);
+    }
+
     /**
      * Returns all the accessibility actions that can be handled by the host.
      */

src/com/android/launcher3/model/data/ItemInfoWithIcon.java

@@ -118,6 +118,11 @@ public abstract class ItemInfoWithIcon extends ItemInfo {
             | FLAG_DISABLED_QUIET_USER | FLAG_DISABLED_BY_PUBLISHER | FLAG_DISABLED_LOCKED_USER
             | FLAG_DISABLED_VERSION_LOWER;
 
+    /**
+     * Flag indicating this item can't be pinned to home screen.
+     */
+    public static final int FLAG_NOT_PINNABLE = 1 << 13;
+
     /**
      * Status associated with the system state of the underlying item. This is calculated every
      * time a new info is created and not persisted on the disk.