Jeff Brown | 0abd3a6 | 2013-11-09 17:48:23 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.internal.app; |
| 18 | |
| 19 | import com.android.internal.R; |
| 20 | |
| 21 | import android.app.Dialog; |
| 22 | import android.app.MediaRouteActionProvider; |
| 23 | import android.app.MediaRouteButton; |
| 24 | import android.content.Context; |
| 25 | import android.graphics.drawable.Drawable; |
| 26 | import android.media.MediaRouter; |
| 27 | import android.media.MediaRouter.RouteGroup; |
| 28 | import android.media.MediaRouter.RouteInfo; |
| 29 | import android.os.Bundle; |
| 30 | import android.view.KeyEvent; |
| 31 | import android.view.View; |
| 32 | import android.view.Window; |
| 33 | import android.widget.Button; |
| 34 | import android.widget.FrameLayout; |
| 35 | import android.widget.LinearLayout; |
| 36 | import android.widget.SeekBar; |
| 37 | |
| 38 | /** |
| 39 | * This class implements the route controller dialog for {@link MediaRouter}. |
| 40 | * <p> |
| 41 | * This dialog allows the user to control or disconnect from the currently selected route. |
| 42 | * </p> |
| 43 | * |
| 44 | * @see MediaRouteButton |
| 45 | * @see MediaRouteActionProvider |
| 46 | * |
| 47 | * TODO: Move this back into the API, as in the support library media router. |
| 48 | */ |
| 49 | public class MediaRouteControllerDialog extends Dialog { |
| 50 | // Time to wait before updating the volume when the user lets go of the seek bar |
| 51 | // to allow the route provider time to propagate the change and publish a new |
| 52 | // route descriptor. |
| 53 | private static final int VOLUME_UPDATE_DELAY_MILLIS = 250; |
| 54 | |
| 55 | private final MediaRouter mRouter; |
| 56 | private final MediaRouterCallback mCallback; |
| 57 | private final MediaRouter.RouteInfo mRoute; |
| 58 | |
| 59 | private boolean mCreated; |
| 60 | private Drawable mMediaRouteConnectingDrawable; |
| 61 | private Drawable mMediaRouteOnDrawable; |
| 62 | private Drawable mCurrentIconDrawable; |
| 63 | |
| 64 | private boolean mVolumeControlEnabled = true; |
| 65 | private LinearLayout mVolumeLayout; |
| 66 | private SeekBar mVolumeSlider; |
| 67 | private boolean mVolumeSliderTouched; |
| 68 | |
| 69 | private View mControlView; |
| 70 | |
| 71 | private Button mDisconnectButton; |
| 72 | |
| 73 | public MediaRouteControllerDialog(Context context, int theme) { |
| 74 | super(context, theme); |
| 75 | |
| 76 | mRouter = (MediaRouter) context.getSystemService(Context.MEDIA_ROUTER_SERVICE); |
| 77 | mCallback = new MediaRouterCallback(); |
| 78 | mRoute = mRouter.getSelectedRoute(); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Gets the route that this dialog is controlling. |
| 83 | */ |
| 84 | public MediaRouter.RouteInfo getRoute() { |
| 85 | return mRoute; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Provides the subclass an opportunity to create a view that will |
| 90 | * be included within the body of the dialog to offer additional media controls |
| 91 | * for the currently playing content. |
| 92 | * |
| 93 | * @param savedInstanceState The dialog's saved instance state. |
| 94 | * @return The media control view, or null if none. |
| 95 | */ |
| 96 | public View onCreateMediaControlView(Bundle savedInstanceState) { |
| 97 | return null; |
| 98 | } |
| 99 | |
| 100 | /** |
| 101 | * Gets the media control view that was created by {@link #onCreateMediaControlView(Bundle)}. |
| 102 | * |
| 103 | * @return The media control view, or null if none. |
| 104 | */ |
| 105 | public View getMediaControlView() { |
| 106 | return mControlView; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Sets whether to enable the volume slider and volume control using the volume keys |
| 111 | * when the route supports it. |
| 112 | * <p> |
| 113 | * The default value is true. |
| 114 | * </p> |
| 115 | */ |
| 116 | public void setVolumeControlEnabled(boolean enable) { |
| 117 | if (mVolumeControlEnabled != enable) { |
| 118 | mVolumeControlEnabled = enable; |
| 119 | if (mCreated) { |
| 120 | updateVolume(); |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Returns whether to enable the volume slider and volume control using the volume keys |
| 127 | * when the route supports it. |
| 128 | */ |
| 129 | public boolean isVolumeControlEnabled() { |
| 130 | return mVolumeControlEnabled; |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | protected void onCreate(Bundle savedInstanceState) { |
| 135 | super.onCreate(savedInstanceState); |
| 136 | |
| 137 | getWindow().requestFeature(Window.FEATURE_LEFT_ICON); |
| 138 | |
| 139 | setContentView(R.layout.media_route_controller_dialog); |
| 140 | |
| 141 | mVolumeLayout = (LinearLayout)findViewById(R.id.media_route_volume_layout); |
| 142 | mVolumeSlider = (SeekBar)findViewById(R.id.media_route_volume_slider); |
| 143 | mVolumeSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { |
| 144 | private final Runnable mStopTrackingTouch = new Runnable() { |
| 145 | @Override |
| 146 | public void run() { |
| 147 | if (mVolumeSliderTouched) { |
| 148 | mVolumeSliderTouched = false; |
| 149 | updateVolume(); |
| 150 | } |
| 151 | } |
| 152 | }; |
| 153 | |
| 154 | @Override |
| 155 | public void onStartTrackingTouch(SeekBar seekBar) { |
| 156 | if (mVolumeSliderTouched) { |
| 157 | mVolumeSlider.removeCallbacks(mStopTrackingTouch); |
| 158 | } else { |
| 159 | mVolumeSliderTouched = true; |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | @Override |
| 164 | public void onStopTrackingTouch(SeekBar seekBar) { |
| 165 | // Defer resetting mVolumeSliderTouched to allow the media route provider |
| 166 | // a little time to settle into its new state and publish the final |
| 167 | // volume update. |
| 168 | mVolumeSlider.postDelayed(mStopTrackingTouch, VOLUME_UPDATE_DELAY_MILLIS); |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { |
| 173 | if (fromUser) { |
| 174 | mRoute.requestSetVolume(progress); |
| 175 | } |
| 176 | } |
| 177 | }); |
| 178 | |
| 179 | mDisconnectButton = (Button)findViewById(R.id.media_route_disconnect_button); |
| 180 | mDisconnectButton.setOnClickListener(new View.OnClickListener() { |
| 181 | @Override |
| 182 | public void onClick(View v) { |
| 183 | if (mRoute.isSelected()) { |
| 184 | mRouter.getDefaultRoute().select(); |
| 185 | } |
| 186 | dismiss(); |
| 187 | } |
| 188 | }); |
| 189 | |
| 190 | mCreated = true; |
| 191 | if (update()) { |
| 192 | mControlView = onCreateMediaControlView(savedInstanceState); |
| 193 | FrameLayout controlFrame = |
| 194 | (FrameLayout)findViewById(R.id.media_route_control_frame); |
| 195 | if (mControlView != null) { |
| 196 | controlFrame.addView(mControlView); |
| 197 | controlFrame.setVisibility(View.VISIBLE); |
| 198 | } else { |
| 199 | controlFrame.setVisibility(View.GONE); |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | |
| 205 | @Override |
| 206 | public void onAttachedToWindow() { |
| 207 | super.onAttachedToWindow(); |
| 208 | |
| 209 | mRouter.addCallback(0, mCallback, MediaRouter.CALLBACK_FLAG_UNFILTERED_EVENTS); |
| 210 | update(); |
| 211 | } |
| 212 | |
| 213 | @Override |
| 214 | public void onDetachedFromWindow() { |
| 215 | mRouter.removeCallback(mCallback); |
| 216 | |
| 217 | super.onDetachedFromWindow(); |
| 218 | } |
| 219 | |
| 220 | @Override |
| 221 | public boolean onKeyDown(int keyCode, KeyEvent event) { |
| 222 | if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN |
| 223 | || keyCode == KeyEvent.KEYCODE_VOLUME_UP) { |
| 224 | mRoute.requestUpdateVolume(keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ? -1 : 1); |
| 225 | return true; |
| 226 | } |
| 227 | return super.onKeyDown(keyCode, event); |
| 228 | } |
| 229 | |
| 230 | @Override |
| 231 | public boolean onKeyUp(int keyCode, KeyEvent event) { |
| 232 | if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN |
| 233 | || keyCode == KeyEvent.KEYCODE_VOLUME_UP) { |
| 234 | return true; |
| 235 | } |
| 236 | return super.onKeyUp(keyCode, event); |
| 237 | } |
| 238 | |
| 239 | private boolean update() { |
| 240 | if (!mRoute.isSelected() || mRoute.isDefault()) { |
| 241 | dismiss(); |
| 242 | return false; |
| 243 | } |
| 244 | |
| 245 | setTitle(mRoute.getName()); |
| 246 | updateVolume(); |
| 247 | |
| 248 | Drawable icon = getIconDrawable(); |
| 249 | if (icon != mCurrentIconDrawable) { |
| 250 | mCurrentIconDrawable = icon; |
| 251 | getWindow().setFeatureDrawable(Window.FEATURE_LEFT_ICON, icon); |
| 252 | } |
| 253 | return true; |
| 254 | } |
| 255 | |
| 256 | private Drawable getIconDrawable() { |
| 257 | if (mRoute.isConnecting()) { |
| 258 | if (mMediaRouteConnectingDrawable == null) { |
| 259 | mMediaRouteConnectingDrawable = getContext().getResources().getDrawable( |
| 260 | R.drawable.ic_media_route_connecting_holo_dark); |
| 261 | } |
| 262 | return mMediaRouteConnectingDrawable; |
| 263 | } else { |
| 264 | if (mMediaRouteOnDrawable == null) { |
| 265 | mMediaRouteOnDrawable = getContext().getResources().getDrawable( |
| 266 | R.drawable.ic_media_route_on_holo_dark); |
| 267 | } |
| 268 | return mMediaRouteOnDrawable; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | private void updateVolume() { |
| 273 | if (!mVolumeSliderTouched) { |
| 274 | if (isVolumeControlAvailable()) { |
| 275 | mVolumeLayout.setVisibility(View.VISIBLE); |
| 276 | mVolumeSlider.setMax(mRoute.getVolumeMax()); |
| 277 | mVolumeSlider.setProgress(mRoute.getVolume()); |
| 278 | } else { |
| 279 | mVolumeLayout.setVisibility(View.GONE); |
| 280 | } |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | private boolean isVolumeControlAvailable() { |
| 285 | return mVolumeControlEnabled && mRoute.getVolumeHandling() == |
| 286 | MediaRouter.RouteInfo.PLAYBACK_VOLUME_VARIABLE; |
| 287 | } |
| 288 | |
| 289 | private final class MediaRouterCallback extends MediaRouter.SimpleCallback { |
| 290 | @Override |
| 291 | public void onRouteUnselected(MediaRouter router, int type, RouteInfo info) { |
| 292 | update(); |
| 293 | } |
| 294 | |
| 295 | @Override |
| 296 | public void onRouteChanged(MediaRouter router, MediaRouter.RouteInfo route) { |
| 297 | update(); |
| 298 | } |
| 299 | |
| 300 | @Override |
| 301 | public void onRouteVolumeChanged(MediaRouter router, MediaRouter.RouteInfo route) { |
| 302 | if (route == mRoute) { |
| 303 | updateVolume(); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | @Override |
| 308 | public void onRouteGrouped(MediaRouter router, RouteInfo info, RouteGroup group, |
| 309 | int index) { |
| 310 | update(); |
| 311 | } |
| 312 | |
| 313 | @Override |
| 314 | public void onRouteUngrouped(MediaRouter router, RouteInfo info, RouteGroup group) { |
| 315 | update(); |
| 316 | } |
| 317 | } |
| 318 | } |