Making sure keyguard and homescreen only display eligible widgets (issue 7550090)

Change-Id: I25acb7bde2e8e5ac3185a009f5c7151b81f0ae19

Author: Adam Cohen

core/java/android/appwidget/AppWidgetManager.java

@@ -544,8 +544,19 @@ public void notifyAppWidgetViewDataChanged(int appWidgetId, int viewId) {
      * Return a list of the AppWidget providers that are currently installed.
      */
     public List<AppWidgetProviderInfo> getInstalledProviders() {
+        return getInstalledProviders(AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN);
+    }
+
+    /**
+     * Return a list of the AppWidget providers that are currently installed.
+     *
+     * @param categoryFilter Will only return providers which register as any of the specified
+     *        specified categories. See {@link AppWidgetProviderInfo#widgetCategory}.
+     * @hide
+     */
+    public List<AppWidgetProviderInfo> getInstalledProviders(int categoryFilter) {
         try {
-            List<AppWidgetProviderInfo> providers = sService.getInstalledProviders();
+            List<AppWidgetProviderInfo> providers = sService.getInstalledProviders(categoryFilter);
             for (AppWidgetProviderInfo info : providers) {
                 // Converting complex to dp.
                 info.minWidth =

core/java/com/android/internal/appwidget/IAppWidgetService.aidl

@@ -49,7 +49,7 @@ interface IAppWidgetService {
     void partiallyUpdateAppWidgetIds(in int[] appWidgetIds, in RemoteViews views);
     void updateAppWidgetProvider(in ComponentName provider, in RemoteViews views);
     void notifyAppWidgetViewDataChanged(in int[] appWidgetIds, int viewId);
-    List<AppWidgetProviderInfo> getInstalledProviders();
+    List<AppWidgetProviderInfo> getInstalledProviders(int categoryFilter);
     AppWidgetProviderInfo getAppWidgetInfo(int appWidgetId);
     boolean hasBindAppWidgetPermission(in String packageName);
     void setBindAppWidgetPermission(in String packageName, in boolean permission);

services/java/com/android/server/AppWidgetService.java

@@ -281,8 +281,9 @@ public Bundle getAppWidgetOptions(int appWidgetId) {
     }
 
     @Override
-    public List<AppWidgetProviderInfo> getInstalledProviders() throws RemoteException {
-        return getImplForUser(getCallingOrCurrentUserId()).getInstalledProviders();
+    public List<AppWidgetProviderInfo> getInstalledProviders(int categoryFilter)
+            throws RemoteException {
+        return getImplForUser(getCallingOrCurrentUserId()).getInstalledProviders(categoryFilter);
     }
 
     @Override

services/java/com/android/server/AppWidgetServiceImpl.java

@@ -854,11 +854,7 @@ public RemoteViews getAppWidgetViews(int appWidgetId) {
         }
     }
 
-    public List<AppWidgetProviderInfo> getInstalledProviders() {
-        return getInstalledProviders(AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN);
-    }
-
-    private List<AppWidgetProviderInfo> getInstalledProviders(int categoryFilter) {
+    public List<AppWidgetProviderInfo> getInstalledProviders(int categoryFilter) {
         synchronized (mAppWidgetIds) {
             ensureStateLoadedLocked();
             final int N = mInstalledProviders.size();