| /* |
| * Copyright (C) 2013 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 com.android.internal.app; |
| |
| import com.android.internal.R; |
| |
| import android.app.AlertDialog; |
| import android.app.MediaRouteActionProvider; |
| import android.app.MediaRouteButton; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.AnimationDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.StateListDrawable; |
| import android.media.MediaRouter; |
| import android.media.MediaRouter.RouteGroup; |
| import android.media.MediaRouter.RouteInfo; |
| import android.os.Bundle; |
| import android.util.TypedValue; |
| import android.view.KeyEvent; |
| import android.view.View; |
| import android.widget.FrameLayout; |
| import android.widget.LinearLayout; |
| import android.widget.SeekBar; |
| |
| /** |
| * This class implements the route controller dialog for {@link MediaRouter}. |
| * <p> |
| * This dialog allows the user to control or disconnect from the currently selected route. |
| * </p> |
| * |
| * @see MediaRouteButton |
| * @see MediaRouteActionProvider |
| * |
| * TODO: Move this back into the API, as in the support library media router. |
| */ |
| public class MediaRouteControllerDialog extends AlertDialog { |
| // Time to wait before updating the volume when the user lets go of the seek bar |
| // to allow the route provider time to propagate the change and publish a new |
| // route descriptor. |
| private static final int VOLUME_UPDATE_DELAY_MILLIS = 250; |
| |
| private final MediaRouter mRouter; |
| private final MediaRouterCallback mCallback; |
| private final MediaRouter.RouteInfo mRoute; |
| |
| private boolean mCreated; |
| private Drawable mMediaRouteButtonDrawable; |
| private int[] mMediaRouteConnectingState = { R.attr.state_checked, R.attr.state_enabled }; |
| private int[] mMediaRouteOnState = { R.attr.state_activated, R.attr.state_enabled }; |
| private Drawable mCurrentIconDrawable; |
| |
| private boolean mVolumeControlEnabled = true; |
| private LinearLayout mVolumeLayout; |
| private SeekBar mVolumeSlider; |
| private boolean mVolumeSliderTouched; |
| |
| private View mControlView; |
| |
| public MediaRouteControllerDialog(Context context, int theme) { |
| super(context, theme); |
| |
| mRouter = (MediaRouter) context.getSystemService(Context.MEDIA_ROUTER_SERVICE); |
| mCallback = new MediaRouterCallback(); |
| mRoute = mRouter.getSelectedRoute(); |
| } |
| |
| /** |
| * Gets the route that this dialog is controlling. |
| */ |
| public MediaRouter.RouteInfo getRoute() { |
| return mRoute; |
| } |
| |
| /** |
| * Provides the subclass an opportunity to create a view that will |
| * be included within the body of the dialog to offer additional media controls |
| * for the currently playing content. |
| * |
| * @param savedInstanceState The dialog's saved instance state. |
| * @return The media control view, or null if none. |
| */ |
| public View onCreateMediaControlView(Bundle savedInstanceState) { |
| return null; |
| } |
| |
| /** |
| * Gets the media control view that was created by {@link #onCreateMediaControlView(Bundle)}. |
| * |
| * @return The media control view, or null if none. |
| */ |
| public View getMediaControlView() { |
| return mControlView; |
| } |
| |
| /** |
| * Sets whether to enable the volume slider and volume control using the volume keys |
| * when the route supports it. |
| * <p> |
| * The default value is true. |
| * </p> |
| */ |
| public void setVolumeControlEnabled(boolean enable) { |
| if (mVolumeControlEnabled != enable) { |
| mVolumeControlEnabled = enable; |
| if (mCreated) { |
| updateVolume(); |
| } |
| } |
| } |
| |
| /** |
| * Returns whether to enable the volume slider and volume control using the volume keys |
| * when the route supports it. |
| */ |
| public boolean isVolumeControlEnabled() { |
| return mVolumeControlEnabled; |
| } |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| setTitle(mRoute.getName()); |
| Resources res = getContext().getResources(); |
| setButton(BUTTON_NEGATIVE, res.getString(R.string.media_route_controller_disconnect), |
| new OnClickListener() { |
| @Override |
| public void onClick(DialogInterface dialogInterface, int id) { |
| if (mRoute.isSelected()) { |
| mRouter.getDefaultRoute().select(); |
| } |
| dismiss(); |
| } |
| }); |
| View customView = getLayoutInflater().inflate(R.layout.media_route_controller_dialog, null); |
| setView(customView, 0, 0, 0, 0); |
| super.onCreate(savedInstanceState); |
| |
| View customPanelView = getWindow().findViewById(R.id.customPanel); |
| if (customPanelView != null) { |
| customPanelView.setMinimumHeight(0); |
| } |
| mVolumeLayout = (LinearLayout) customView.findViewById(R.id.media_route_volume_layout); |
| mVolumeSlider = (SeekBar) customView.findViewById(R.id.media_route_volume_slider); |
| mVolumeSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { |
| private final Runnable mStopTrackingTouch = new Runnable() { |
| @Override |
| public void run() { |
| if (mVolumeSliderTouched) { |
| mVolumeSliderTouched = false; |
| updateVolume(); |
| } |
| } |
| }; |
| |
| @Override |
| public void onStartTrackingTouch(SeekBar seekBar) { |
| if (mVolumeSliderTouched) { |
| mVolumeSlider.removeCallbacks(mStopTrackingTouch); |
| } else { |
| mVolumeSliderTouched = true; |
| } |
| } |
| |
| @Override |
| public void onStopTrackingTouch(SeekBar seekBar) { |
| // Defer resetting mVolumeSliderTouched to allow the media route provider |
| // a little time to settle into its new state and publish the final |
| // volume update. |
| mVolumeSlider.postDelayed(mStopTrackingTouch, VOLUME_UPDATE_DELAY_MILLIS); |
| } |
| |
| @Override |
| public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { |
| if (fromUser) { |
| mRoute.requestSetVolume(progress); |
| } |
| } |
| }); |
| |
| mMediaRouteButtonDrawable = obtainMediaRouteButtonDrawable(); |
| mCreated = true; |
| if (update()) { |
| mControlView = onCreateMediaControlView(savedInstanceState); |
| FrameLayout controlFrame = |
| (FrameLayout) customView.findViewById(R.id.media_route_control_frame); |
| if (mControlView != null) { |
| controlFrame.addView(mControlView); |
| controlFrame.setVisibility(View.VISIBLE); |
| } else { |
| controlFrame.setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| |
| mRouter.addCallback(0, mCallback, MediaRouter.CALLBACK_FLAG_UNFILTERED_EVENTS); |
| update(); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| mRouter.removeCallback(mCallback); |
| |
| super.onDetachedFromWindow(); |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN |
| || keyCode == KeyEvent.KEYCODE_VOLUME_UP) { |
| mRoute.requestUpdateVolume(keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ? -1 : 1); |
| return true; |
| } |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN |
| || keyCode == KeyEvent.KEYCODE_VOLUME_UP) { |
| return true; |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| private boolean update() { |
| if (!mRoute.isSelected() || mRoute.isDefault()) { |
| dismiss(); |
| return false; |
| } |
| |
| setTitle(mRoute.getName()); |
| updateVolume(); |
| |
| Drawable icon = getIconDrawable(); |
| if (icon != mCurrentIconDrawable) { |
| mCurrentIconDrawable = icon; |
| if (icon instanceof AnimationDrawable) { |
| AnimationDrawable animDrawable = (AnimationDrawable) icon; |
| if (!animDrawable.isRunning()) { |
| animDrawable.start(); |
| } |
| } |
| setIcon(icon); |
| } |
| return true; |
| } |
| |
| private Drawable obtainMediaRouteButtonDrawable() { |
| Context context = getContext(); |
| TypedValue value = new TypedValue(); |
| if (!context.getTheme().resolveAttribute(R.attr.mediaRouteButtonStyle, value, true)) { |
| return null; |
| } |
| int[] drawableAttrs = new int[] { R.attr.externalRouteEnabledDrawable }; |
| TypedArray a = context.obtainStyledAttributes(value.data, drawableAttrs); |
| Drawable drawable = a.getDrawable(0); |
| a.recycle(); |
| return drawable; |
| } |
| |
| private Drawable getIconDrawable() { |
| if (!(mMediaRouteButtonDrawable instanceof StateListDrawable)) { |
| return mMediaRouteButtonDrawable; |
| } else if (mRoute.isConnecting()) { |
| StateListDrawable stateListDrawable = (StateListDrawable) mMediaRouteButtonDrawable; |
| stateListDrawable.setState(mMediaRouteConnectingState); |
| return stateListDrawable.getCurrent(); |
| } else { |
| StateListDrawable stateListDrawable = (StateListDrawable) mMediaRouteButtonDrawable; |
| stateListDrawable.setState(mMediaRouteOnState); |
| return stateListDrawable.getCurrent(); |
| } |
| } |
| |
| private void updateVolume() { |
| if (!mVolumeSliderTouched) { |
| if (isVolumeControlAvailable()) { |
| mVolumeLayout.setVisibility(View.VISIBLE); |
| mVolumeSlider.setMax(mRoute.getVolumeMax()); |
| mVolumeSlider.setProgress(mRoute.getVolume()); |
| } else { |
| mVolumeLayout.setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| private boolean isVolumeControlAvailable() { |
| return mVolumeControlEnabled && mRoute.getVolumeHandling() == |
| MediaRouter.RouteInfo.PLAYBACK_VOLUME_VARIABLE; |
| } |
| |
| private final class MediaRouterCallback extends MediaRouter.SimpleCallback { |
| @Override |
| public void onRouteUnselected(MediaRouter router, int type, RouteInfo info) { |
| update(); |
| } |
| |
| @Override |
| public void onRouteChanged(MediaRouter router, MediaRouter.RouteInfo route) { |
| update(); |
| } |
| |
| @Override |
| public void onRouteVolumeChanged(MediaRouter router, MediaRouter.RouteInfo route) { |
| if (route == mRoute) { |
| updateVolume(); |
| } |
| } |
| |
| @Override |
| public void onRouteGrouped(MediaRouter router, RouteInfo info, RouteGroup group, |
| int index) { |
| update(); |
| } |
| |
| @Override |
| public void onRouteUngrouped(MediaRouter router, RouteInfo info, RouteGroup group) { |
| update(); |
| } |
| } |
| } |