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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app;
import com.android.internal.app.MediaRouteChooserDialogFragment;
import android.content.Context;
import android.content.ContextWrapper;
import android.media.MediaRouter;
import android.media.MediaRouter.RouteInfo;
import android.util.Log;
import android.view.ActionProvider;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import java.lang.ref.WeakReference;
public class MediaRouteActionProvider extends ActionProvider {
private static final String TAG = "MediaRouteActionProvider";
private Context mContext;
private MediaRouter mRouter;
private MenuItem mMenuItem;
private MediaRouteButton mView;
private int mRouteTypes;
private View.OnClickListener mExtendedSettingsListener;
private RouterCallback mCallback;
public MediaRouteActionProvider(Context context) {
super(context);
mContext = context;
mRouter = (MediaRouter) context.getSystemService(Context.MEDIA_ROUTER_SERVICE);
mCallback = new RouterCallback(this);
// Start with live audio by default.
// TODO Update this when new route types are added; segment by API level
// when different route types were added.
setRouteTypes(MediaRouter.ROUTE_TYPE_LIVE_AUDIO);
}
public void setRouteTypes(int types) {
if (mRouteTypes == types) return;
if (mRouteTypes != 0) {
mRouter.removeCallback(mCallback);
}
mRouteTypes = types;
if (types != 0) {
mRouter.addCallback(types, mCallback);
}
if (mView != null) {
mView.setRouteTypes(mRouteTypes);
}
}
@Override
public View onCreateActionView() {
throw new UnsupportedOperationException("Use onCreateActionView(MenuItem) instead.");
}
@Override
public View onCreateActionView(MenuItem item) {
if (mMenuItem != null || mView != null) {
Log.e(TAG, "onCreateActionView: this ActionProvider is already associated " +
"with a menu item. Don't reuse MediaRouteActionProvider instances! " +
"Abandoning the old one...");
}
mMenuItem = item;
mView = new MediaRouteButton(mContext);
mView.setCheatSheetEnabled(true);
mView.setRouteTypes(mRouteTypes);
mView.setExtendedSettingsClickListener(mExtendedSettingsListener);
mView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.MATCH_PARENT));
return mView;
}
@Override
public boolean onPerformDefaultAction() {
final FragmentManager fm = getActivity().getFragmentManager();
// See if one is already attached to this activity.
MediaRouteChooserDialogFragment dialogFragment =
(MediaRouteChooserDialogFragment) fm.findFragmentByTag(
MediaRouteChooserDialogFragment.FRAGMENT_TAG);
if (dialogFragment != null) {
Log.w(TAG, "onPerformDefaultAction(): Chooser dialog already showing!");
return false;
}
dialogFragment = new MediaRouteChooserDialogFragment();
dialogFragment.setExtendedSettingsClickListener(mExtendedSettingsListener);
dialogFragment.setRouteTypes(mRouteTypes);
dialogFragment.show(fm, MediaRouteChooserDialogFragment.FRAGMENT_TAG);
return true;
}
private Activity getActivity() {
// Gross way of unwrapping the Activity so we can get the FragmentManager
Context context = mContext;
while (context instanceof ContextWrapper && !(context instanceof Activity)) {
context = ((ContextWrapper) context).getBaseContext();
}
if (!(context instanceof Activity)) {
throw new IllegalStateException("The MediaRouteActionProvider's Context " +
"is not an Activity.");
}
return (Activity) context;
}
public void setExtendedSettingsClickListener(View.OnClickListener listener) {
mExtendedSettingsListener = listener;
if (mView != null) {
mView.setExtendedSettingsClickListener(listener);
}
}
@Override
public boolean overridesItemVisibility() {
return true;
}
@Override
public boolean isVisible() {
return mRouter.getRouteCount() > 1;
}
private static class RouterCallback extends MediaRouter.SimpleCallback {
private WeakReference<MediaRouteActionProvider> mAp;
RouterCallback(MediaRouteActionProvider ap) {
mAp = new WeakReference<MediaRouteActionProvider>(ap);
}
@Override
public void onRouteAdded(MediaRouter router, RouteInfo info) {
final MediaRouteActionProvider ap = mAp.get();
if (ap == null) {
router.removeCallback(this);
return;
}
ap.refreshVisibility();
}
@Override
public void onRouteRemoved(MediaRouter router, RouteInfo info) {
final MediaRouteActionProvider ap = mAp.get();
if (ap == null) {
router.removeCallback(this);
return;
}
ap.refreshVisibility();
}
}
}
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