Merge "Implement #8323587, #8323342, #8323590: new features." into jb-mr2-dev

api/current.txt

@@ -6726,6 +6726,7 @@ package android.content.pm {
     field public static final int DONT_KILL_APP = 1; // 0x1
     field public static final java.lang.String EXTRA_VERIFICATION_ID = "android.content.pm.extra.VERIFICATION_ID";
     field public static final java.lang.String EXTRA_VERIFICATION_RESULT = "android.content.pm.extra.VERIFICATION_RESULT";
+    field public static final java.lang.String FEATURE_APP_WIDGETS = "android.software.app_widgets";
     field public static final java.lang.String FEATURE_AUDIO_LOW_LATENCY = "android.hardware.audio.low_latency";
     field public static final java.lang.String FEATURE_BLUETOOTH = "android.hardware.bluetooth";
     field public static final java.lang.String FEATURE_CAMERA = "android.hardware.camera";
@@ -6736,6 +6737,8 @@ package android.content.pm {
     field public static final java.lang.String FEATURE_FAKETOUCH = "android.hardware.faketouch";
     field public static final java.lang.String FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT = "android.hardware.faketouch.multitouch.distinct";
     field public static final java.lang.String FEATURE_FAKETOUCH_MULTITOUCH_JAZZHAND = "android.hardware.faketouch.multitouch.jazzhand";
+    field public static final java.lang.String FEATURE_HOME_SCREEN = "android.software.home_screen";
+    field public static final java.lang.String FEATURE_INPUT_METHODS = "android.software.input_methods";
     field public static final java.lang.String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
     field public static final java.lang.String FEATURE_LOCATION = "android.hardware.location";
     field public static final java.lang.String FEATURE_LOCATION_GPS = "android.hardware.location.gps";

core/java/android/content/pm/PackageManager.java

@@ -1143,6 +1143,29 @@ public abstract class PackageManager {
     @SdkConstant(SdkConstantType.FEATURE)
     public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
 
+    /**
+     * Feature for {@link #getSystemAvailableFeatures} and
+     * {@link #hasSystemFeature}: The device supports app widgets.
+     */
+    @SdkConstant(SdkConstantType.FEATURE)
+    public static final String FEATURE_APP_WIDGETS = "android.software.app_widgets";
+
+    /**
+     * Feature for {@link #getSystemAvailableFeatures} and
+     * {@link #hasSystemFeature}: The device supports a home screen that is replaceable
+     * by third party applications.
+     */
+    @SdkConstant(SdkConstantType.FEATURE)
+    public static final String FEATURE_HOME_SCREEN = "android.software.home_screen";
+
+    /**
+     * Feature for {@link #getSystemAvailableFeatures} and
+     * {@link #hasSystemFeature}: The device supports adding new input methods implemented
+     * with the {@link android.inputmethodservice.InputMethodService} API.
+     */
+    @SdkConstant(SdkConstantType.FEATURE)
+    public static final String FEATURE_INPUT_METHODS = "android.software.input_methods";
+
     /**
      * Feature for {@link #getSystemAvailableFeatures} and
      * {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.

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

@@ -177,18 +177,20 @@ class AppWidgetServiceImpl {
     // Manages persistent references to RemoteViewsServices from different App Widgets
     private final HashMap<FilterComparison, HashSet<Integer>> mRemoteViewsServicesAppWidgets = new HashMap<FilterComparison, HashSet<Integer>>();
 
-    Context mContext;
+    final Context mContext;
+    final IPackageManager mPm;
+    final AlarmManager mAlarmManager;
+    final ArrayList<Provider> mInstalledProviders = new ArrayList<Provider>();
+    final int mUserId;
+    final boolean mHasFeature;
+
     Locale mLocale;
-    IPackageManager mPm;
-    AlarmManager mAlarmManager;
-    ArrayList<Provider> mInstalledProviders = new ArrayList<Provider>();
     int mNextAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID + 1;
     final ArrayList<AppWidgetId> mAppWidgetIds = new ArrayList<AppWidgetId>();
-    ArrayList<Host> mHosts = new ArrayList<Host>();
+    final ArrayList<Host> mHosts = new ArrayList<Host>();
     // set of package names
-    HashSet<String> mPackagesWithBindWidgetPermission = new HashSet<String>();
+    final HashSet<String> mPackagesWithBindWidgetPermission = new HashSet<String>();
     boolean mSafeMode;
-    int mUserId;
     boolean mStateLoaded;
     int mMaxWidgetBitmapMemory;
 
@@ -204,6 +206,8 @@ class AppWidgetServiceImpl {
         mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
         mUserId = userId;
         mSaveStateHandler = saveStateHandler;
+        mHasFeature = context.getPackageManager().hasSystemFeature(
+                PackageManager.FEATURE_APP_WIDGETS);
         computeMaximumWidgetBitmapMemory();
     }
 
@@ -426,6 +430,9 @@ class AppWidgetServiceImpl {
 
     private void ensureStateLoadedLocked() {
         if (!mStateLoaded) {
+            if (!mHasFeature) {
+                return;
+            }
             loadAppWidgetListLocked();
             loadStateLocked();
             mStateLoaded = true;
@@ -435,6 +442,9 @@ class AppWidgetServiceImpl {
     public int allocateAppWidgetId(String packageName, int hostId) {
         int callingUid = enforceSystemOrCallingUid(packageName);
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return -1;
+            }
             ensureStateLoadedLocked();
             int appWidgetId = mNextAppWidgetId++;
 
@@ -456,6 +466,9 @@ class AppWidgetServiceImpl {
 
     public void deleteAppWidgetId(int appWidgetId) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             ensureStateLoadedLocked();
             AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
             if (id != null) {
@@ -467,6 +480,9 @@ class AppWidgetServiceImpl {
 
     public void deleteHost(int hostId) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             ensureStateLoadedLocked();
             int callingUid = Binder.getCallingUid();
             Host host = lookupHostLocked(callingUid, hostId);
@@ -479,6 +495,9 @@ class AppWidgetServiceImpl {
 
     public void deleteAllHosts() {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             ensureStateLoadedLocked();
             int callingUid = Binder.getCallingUid();
             final int N = mHosts.size();
@@ -561,6 +580,9 @@ class AppWidgetServiceImpl {
         final long ident = Binder.clearCallingIdentity();
         try {
             synchronized (mAppWidgetIds) {
+                if (!mHasFeature) {
+                    return;
+                }
                 options = cloneIfLocalBinder(options);
                 ensureStateLoadedLocked();
                 AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
@@ -622,6 +644,9 @@ class AppWidgetServiceImpl {
 
     public boolean bindAppWidgetIdIfAllowed(
             String packageName, int appWidgetId, ComponentName provider, Bundle options) {
+        if (!mHasFeature) {
+            return false;
+        }
         try {
             mContext.enforceCallingOrSelfPermission(android.Manifest.permission.BIND_APPWIDGET, null);
         } catch (SecurityException se) {
@@ -649,6 +674,9 @@ class AppWidgetServiceImpl {
     }
 
     public boolean hasBindAppWidgetPermission(String packageName) {
+        if (!mHasFeature) {
+            return false;
+        }
         mContext.enforceCallingPermission(
                 android.Manifest.permission.MODIFY_APPWIDGET_BIND_PERMISSIONS,
                 "hasBindAppWidgetPermission packageName=" + packageName);
@@ -660,6 +688,9 @@ class AppWidgetServiceImpl {
     }
 
     public void setBindAppWidgetPermission(String packageName, boolean permission) {
+        if (!mHasFeature) {
+            return;
+        }
         mContext.enforceCallingPermission(
                 android.Manifest.permission.MODIFY_APPWIDGET_BIND_PERMISSIONS,
                 "setBindAppWidgetPermission packageName=" + packageName);
@@ -678,6 +709,9 @@ class AppWidgetServiceImpl {
     // Binds to a specific RemoteViewsService
     public void bindRemoteViewsService(int appWidgetId, Intent intent, IBinder connection) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             ensureStateLoadedLocked();
             AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
             if (id == null) {
@@ -735,6 +769,9 @@ class AppWidgetServiceImpl {
     // Unbinds from a specific RemoteViewsService
     public void unbindRemoteViewsService(int appWidgetId, Intent intent) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             ensureStateLoadedLocked();
             // Unbind from the RemoteViewsService (which will trigger a callback to the bound
             // RemoteViewsAdapter)
@@ -846,6 +883,9 @@ class AppWidgetServiceImpl {
 
     public AppWidgetProviderInfo getAppWidgetInfo(int appWidgetId) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return null;
+            }
             ensureStateLoadedLocked();
             AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
             if (id != null && id.provider != null && !id.provider.zombie) {
@@ -858,6 +898,9 @@ class AppWidgetServiceImpl {
     public RemoteViews getAppWidgetViews(int appWidgetId) {
         if (DBG) log("getAppWidgetViews id=" + appWidgetId);
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return null;
+            }
             ensureStateLoadedLocked();
             AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
             if (id != null) {
@@ -870,6 +913,9 @@ class AppWidgetServiceImpl {
 
     public List<AppWidgetProviderInfo> getInstalledProviders(int categoryFilter) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return new ArrayList<AppWidgetProviderInfo>(0);
+            }
             ensureStateLoadedLocked();
             final int N = mInstalledProviders.size();
             ArrayList<AppWidgetProviderInfo> result = new ArrayList<AppWidgetProviderInfo>(N);
@@ -884,6 +930,9 @@ class AppWidgetServiceImpl {
     }
 
     public void updateAppWidgetIds(int[] appWidgetIds, RemoteViews views) {
+        if (!mHasFeature) {
+            return;
+        }
         if (appWidgetIds == null) {
             return;
         }
@@ -929,6 +978,9 @@ class AppWidgetServiceImpl {
 
     public void updateAppWidgetOptions(int appWidgetId, Bundle options) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             options = cloneIfLocalBinder(options);
             ensureStateLoadedLocked();
             AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
@@ -953,6 +1005,9 @@ class AppWidgetServiceImpl {
 
     public Bundle getAppWidgetOptions(int appWidgetId) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return Bundle.EMPTY;
+            }
             ensureStateLoadedLocked();
             AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId);
             if (id != null && id.options != null) {
@@ -964,6 +1019,9 @@ class AppWidgetServiceImpl {
     }
 
     public void partiallyUpdateAppWidgetIds(int[] appWidgetIds, RemoteViews views) {
+        if (!mHasFeature) {
+            return;
+        }
         if (appWidgetIds == null) {
             return;
         }
@@ -987,6 +1045,9 @@ class AppWidgetServiceImpl {
     }
 
     public void notifyAppWidgetViewDataChanged(int[] appWidgetIds, int viewId) {
+        if (!mHasFeature) {
+            return;
+        }
         if (appWidgetIds == null) {
             return;
         }
@@ -1005,6 +1066,9 @@ class AppWidgetServiceImpl {
     }
 
     public void updateAppWidgetProvider(ComponentName provider, RemoteViews views) {
+        if (!mHasFeature) {
+            return;
+        }
         synchronized (mAppWidgetIds) {
             ensureStateLoadedLocked();
             Provider p = lookupProviderLocked(provider);
@@ -1147,6 +1211,9 @@ class AppWidgetServiceImpl {
 
     public int[] startListening(IAppWidgetHost callbacks, String packageName, int hostId,
             List<RemoteViews> updatedViews) {
+        if (!mHasFeature) {
+            return new int[0];
+        }
         int callingUid = enforceCallingUid(packageName);
         synchronized (mAppWidgetIds) {
             ensureStateLoadedLocked();
@@ -1169,6 +1236,9 @@ class AppWidgetServiceImpl {
 
     public void stopListening(int hostId) {
         synchronized (mAppWidgetIds) {
+            if (!mHasFeature) {
+                return;
+            }
             ensureStateLoadedLocked();
             Host host = lookupHostLocked(Binder.getCallingUid(), hostId);
             if (host != null) {
@@ -1558,6 +1628,9 @@ class AppWidgetServiceImpl {
     }
 
     void saveStateLocked() {
+        if (!mHasFeature) {
+            return;
+        }
         AtomicFile file = savedStateFile();
         FileOutputStream stream;
         try {

services/java/com/android/server/InputMethodManagerService.java

@@ -164,6 +164,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
     final SettingsObserver mSettingsObserver;
     final IWindowManager mIWindowManager;
     final HandlerCaller mCaller;
+    final boolean mHasFeature;
     private InputMethodFileManager mFileManager;
     private InputMethodAndSubtypeListManager mImListManager;
     private final HardKeyboardListener mHardKeyboardListener;
@@ -608,6 +609,8 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
         }, true /*asyncHandler*/);
         mWindowManagerService = windowManager;
         mHardKeyboardListener = new HardKeyboardListener();
+        mHasFeature = context.getPackageManager().hasSystemFeature(
+                PackageManager.FEATURE_INPUT_METHODS);
 
         mImeSwitcherNotification = new Notification();
         mImeSwitcherNotification.icon = com.android.internal.R.drawable.ic_notification_ime_default;