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Multi-user - wallpaper service

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- Allow each user to have their own wallpaper (live or static).
- Migrate old wallpaper on upgrade.
- Update SystemBackupAgent to backup/restore from primary user's
  new wallpaper directory.

Reduce dependency on Binder.getOrigCallingUser() by passing the
userId for bindService.

Change-Id: I19c8c3296d3d2efa7f28f951d4b84407489e2166
This commit is contained in:
Amith Yamasani
2012-02-06 12:04:42 -08:00
parent 11ca31729c
commit 37ce3a8af6
16 changed files with 612 additions and 336 deletions
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22
services/java/com/android/server/AppWidgetServiceImpl.java
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@ -573,12 +573,13 @@ class AppWidgetServiceImpl {
mBoundRemoteViewsServices.remove(key);
}
int userId = UserId.getUserId(id.provider.uid);
// Bind to the RemoteViewsService (which will trigger a callback to the
// RemoteViewsAdapter.onServiceConnected())
final long token = Binder.clearCallingIdentity();
try {
conn = new ServiceConnectionProxy(key, connection);
mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE);
mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId);
mBoundRemoteViewsServices.put(key, conn);
} finally {
Binder.restoreCallingIdentity(token);
@ -638,11 +639,11 @@ class AppWidgetServiceImpl {
// Check if we need to destroy any services (if no other app widgets are
// referencing the same service)
decrementAppWidgetServiceRefCount(appWidgetId);
decrementAppWidgetServiceRefCount(id);
}
// Destroys the cached factory on the RemoteViewsService's side related to the specified intent
private void destroyRemoteViewsService(final Intent intent) {
private void destroyRemoteViewsService(final Intent intent, AppWidgetId id) {
final ServiceConnection conn = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
@ -663,11 +664,12 @@ class AppWidgetServiceImpl {
}
};
int userId = UserId.getUserId(id.provider.uid);
// Bind to the service and remove the static intent->factory mapping in the
// RemoteViewsService.
final long token = Binder.clearCallingIdentity();
try {
mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE);
mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId);
} finally {
Binder.restoreCallingIdentity(token);
}
@ -687,16 +689,16 @@ class AppWidgetServiceImpl {
// Subtracts from the ref-count for a given RemoteViewsService intent, prompting a delete if
// the ref-count reaches zero.
private void decrementAppWidgetServiceRefCount(int appWidgetId) {
private void decrementAppWidgetServiceRefCount(AppWidgetId id) {
Iterator<FilterComparison> it = mRemoteViewsServicesAppWidgets.keySet().iterator();
while (it.hasNext()) {
final FilterComparison key = it.next();
final HashSet<Integer> ids = mRemoteViewsServicesAppWidgets.get(key);
if (ids.remove(appWidgetId)) {
if (ids.remove(id.appWidgetId)) {
// If we have removed the last app widget referencing this service, then we
// should destroy it and remove it from this set
if (ids.isEmpty()) {
destroyRemoteViewsService(key.getIntent());
destroyRemoteViewsService(key.getIntent(), id);
it.remove();
}
}
@ -888,10 +890,11 @@ class AppWidgetServiceImpl {
}
};
int userId = UserId.getUserId(id.provider.uid);
// Bind to the service and call onDataSetChanged()
final long token = Binder.clearCallingIdentity();
try {
mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE);
mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId);
} finally {
Binder.restoreCallingIdentity(token);
}
@ -1343,7 +1346,6 @@ class AppWidgetServiceImpl {
void readStateFromFileLocked(FileInputStream stream) {
boolean success = false;
try {
XmlPullParser parser = Xml.newPullParser();
parser.setInput(stream, null);
@ -1475,7 +1477,7 @@ class AppWidgetServiceImpl {
}
AtomicFile savedStateFile() {
int userId = Binder.getOrigCallingUser();
int userId = UserId.getCallingUserId();
File dir = new File("/data/system/users/" + userId);
File settingsFile = new File(dir, SETTINGS_FILENAME);
if (!dir.exists()) {