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1 /*
2  * Copyright (C) 2015 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.systemui.volume;
18 
19 import static android.accessibilityservice.AccessibilityServiceInfo.FEEDBACK_ALL_MASK;
20 import static android.accessibilityservice.AccessibilityServiceInfo.FEEDBACK_GENERIC;
21 
22 import android.accessibilityservice.AccessibilityServiceInfo;
23 import android.animation.ObjectAnimator;
24 import android.annotation.NonNull;
25 import android.annotation.SuppressLint;
26 import android.app.Dialog;
27 import android.app.KeyguardManager;
28 import android.content.Context;
29 import android.content.pm.PackageManager;
30 import android.content.res.ColorStateList;
31 import android.content.res.Configuration;
32 import android.content.res.Resources;
33 import android.graphics.Color;
34 import android.graphics.PixelFormat;
35 import android.graphics.Rect;
36 import android.graphics.drawable.AnimatedVectorDrawable;
37 import android.graphics.drawable.ColorDrawable;
38 import android.graphics.drawable.Drawable;
39 import android.media.AudioManager;
40 import android.media.AudioSystem;
41 import android.os.Debug;
42 import android.os.Handler;
43 import android.os.Looper;
44 import android.os.Message;
45 import android.os.SystemClock;
46 import android.provider.Settings.Global;
47 import android.transition.AutoTransition;
48 import android.transition.Transition;
49 import android.transition.TransitionManager;
50 import android.util.DisplayMetrics;
51 import android.util.Log;
52 import android.util.Slog;
53 import android.util.SparseBooleanArray;
54 import android.view.Gravity;
55 import android.view.MotionEvent;
56 import android.view.View;
57 import android.view.View.AccessibilityDelegate;
58 import android.view.View.OnAttachStateChangeListener;
59 import android.view.View.OnClickListener;
60 import android.view.View.OnTouchListener;
61 import android.view.ViewGroup;
62 import android.view.ViewGroup.MarginLayoutParams;
63 import android.view.Window;
64 import android.view.WindowManager;
65 import android.view.accessibility.AccessibilityEvent;
66 import android.view.accessibility.AccessibilityManager;
67 import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener;
68 import android.view.animation.DecelerateInterpolator;
69 import android.widget.ImageButton;
70 import android.widget.SeekBar;
71 import android.widget.SeekBar.OnSeekBarChangeListener;
72 import android.widget.TextView;
73 
74 import com.android.settingslib.Utils;
75 import com.android.systemui.Dependency;
76 import com.android.systemui.Interpolators;
77 import com.android.systemui.R;
78 import com.android.systemui.plugins.VolumeDialogController;
79 import com.android.systemui.plugins.VolumeDialogController.State;
80 import com.android.systemui.plugins.VolumeDialogController.StreamState;
81 import com.android.systemui.plugins.VolumeDialog;
82 import com.android.systemui.statusbar.policy.ZenModeController;
83 import com.android.systemui.tuner.TunerService;
84 import com.android.systemui.tuner.TunerZenModePanel;
85 
86 import java.io.PrintWriter;
87 import java.util.ArrayList;
88 import java.util.List;
89 
90 /**
91  * Visual presentation of the volume dialog.
92  *
93  * A client of VolumeDialogControllerImpl and its state model.
94  *
95  * Methods ending in "H" must be called on the (ui) handler.
96  */
97 public class VolumeDialogImpl implements VolumeDialog, TunerService.Tunable {
98     private static final String TAG = Util.logTag(VolumeDialogImpl.class);
99 
100     public static final String SHOW_FULL_ZEN = "sysui_show_full_zen";
101 
102     private static final long USER_ATTEMPT_GRACE_PERIOD = 1000;
103     private static final int UPDATE_ANIMATION_DURATION = 80;
104 
105     private final Context mContext;
106     private final H mHandler = new H();
107     private VolumeDialogController mController;
108 
109     private Window mWindow;
110     private CustomDialog mDialog;
111     private ViewGroup mDialogView;
112     private ViewGroup mDialogRowsView;
113     private ViewGroup mDialogContentView;
114     private ImageButton mExpandButton;
115     private final List<VolumeRow> mRows = new ArrayList<>();
116     private ConfigurableTexts mConfigurableTexts;
117     private final SparseBooleanArray mDynamic = new SparseBooleanArray();
118     private final KeyguardManager mKeyguard;
119     private final AudioManager mAudioManager;
120     private final AccessibilityManager mAccessibilityMgr;
121     private int mExpandButtonAnimationDuration;
122     private ZenFooter mZenFooter;
123     private final Object mSafetyWarningLock = new Object();
124     private final Accessibility mAccessibility = new Accessibility();
125     private final ColorStateList mActiveSliderTint;
126     private final ColorStateList mInactiveSliderTint;
127     private VolumeDialogMotion mMotion;
128     private int mWindowType;
129     private final ZenModeController mZenModeController;
130 
131     private boolean mShowing;
132     private boolean mExpanded;
133     private boolean mShowA11yStream;
134 
135     private int mActiveStream;
136     private boolean mAutomute = VolumePrefs.DEFAULT_ENABLE_AUTOMUTE;
137     private boolean mSilentMode = VolumePrefs.DEFAULT_ENABLE_SILENT_MODE;
138     private State mState;
139     private boolean mExpandButtonAnimationRunning;
140     private SafetyWarningDialog mSafetyWarning;
141     private Callback mCallback;
142     private boolean mPendingStateChanged;
143     private boolean mPendingRecheckAll;
144     private long mCollapseTime;
145     private boolean mHovering = false;
146     private int mDensity;
147 
148     private boolean mShowFullZen;
149     private TunerZenModePanel mZenPanel;
150 
VolumeDialogImpl(Context context)151     public VolumeDialogImpl(Context context) {
152         mContext = context;
153         mZenModeController = Dependency.get(ZenModeController.class);
154         mController = Dependency.get(VolumeDialogController.class);
155         mKeyguard = (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE);
156         mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
157         mAccessibilityMgr =
158                 (AccessibilityManager) mContext.getSystemService(Context.ACCESSIBILITY_SERVICE);
159         mActiveSliderTint = ColorStateList.valueOf(Utils.getColorAccent(mContext));
160         mInactiveSliderTint = loadColorStateList(R.color.volume_slider_inactive);
161     }
162 
init(int windowType, Callback callback)163     public void init(int windowType, Callback callback) {
164         mCallback = callback;
165         mWindowType = windowType;
166 
167         initDialog();
168 
169         mAccessibility.init();
170 
171         mController.addCallback(mControllerCallbackH, mHandler);
172         mController.getState();
173         Dependency.get(TunerService.class).addTunable(this, SHOW_FULL_ZEN);
174 
175         final Configuration currentConfig = mContext.getResources().getConfiguration();
176         mDensity = currentConfig.densityDpi;
177     }
178 
179     @Override
destroy()180     public void destroy() {
181         mController.removeCallback(mControllerCallbackH);
182     }
183 
initDialog()184     private void initDialog() {
185         mDialog = new CustomDialog(mContext);
186 
187         mConfigurableTexts = new ConfigurableTexts(mContext);
188         mHovering = false;
189         mShowing = false;
190         mWindow = mDialog.getWindow();
191         mWindow.requestFeature(Window.FEATURE_NO_TITLE);
192         mWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
193         mWindow.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
194         mWindow.addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
195                 | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
196                 | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
197                 | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
198                 | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
199                 | WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED);
200         mDialog.setCanceledOnTouchOutside(true);
201         final Resources res = mContext.getResources();
202         final WindowManager.LayoutParams lp = mWindow.getAttributes();
203         lp.type = mWindowType;
204         lp.format = PixelFormat.TRANSLUCENT;
205         lp.setTitle(VolumeDialogImpl.class.getSimpleName());
206         lp.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;
207         lp.y = res.getDimensionPixelSize(R.dimen.volume_offset_top);
208         lp.gravity = Gravity.TOP;
209         lp.windowAnimations = -1;
210         mWindow.setAttributes(lp);
211         mWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING);
212 
213         mDialog.setContentView(R.layout.volume_dialog);
214         mDialogView = (ViewGroup) mDialog.findViewById(R.id.volume_dialog);
215         mDialogView.setOnHoverListener(new View.OnHoverListener() {
216             @Override
217             public boolean onHover(View v, MotionEvent event) {
218                 int action = event.getActionMasked();
219                 mHovering = (action == MotionEvent.ACTION_HOVER_ENTER)
220                         || (action == MotionEvent.ACTION_HOVER_MOVE);
221                 rescheduleTimeoutH();
222                 return true;
223             }
224         });
225         mDialogContentView = (ViewGroup) mDialog.findViewById(R.id.volume_dialog_content);
226         mDialogRowsView = (ViewGroup) mDialogContentView.findViewById(R.id.volume_dialog_rows);
227         mExpanded = false;
228         mExpandButton = (ImageButton) mDialogView.findViewById(R.id.volume_expand_button);
229         mExpandButton.setOnClickListener(mClickExpand);
230 
231         mExpandButton.setVisibility(
232                 AudioSystem.isSingleVolume(mContext) ? View.GONE : View.VISIBLE);
233         updateWindowWidthH();
234         updateExpandButtonH();
235 
236         mMotion = new VolumeDialogMotion(mDialog, mDialogView, mDialogContentView, mExpandButton,
237                 new VolumeDialogMotion.Callback() {
238                     @Override
239                     public void onAnimatingChanged(boolean animating) {
240                         if (animating) return;
241                         if (mPendingStateChanged) {
242                             mHandler.sendEmptyMessage(H.STATE_CHANGED);
243                             mPendingStateChanged = false;
244                         }
245                         if (mPendingRecheckAll) {
246                             mHandler.sendEmptyMessage(H.RECHECK_ALL);
247                             mPendingRecheckAll = false;
248                         }
249                     }
250                 });
251 
252         if (mRows.isEmpty()) {
253             addRow(AudioManager.STREAM_MUSIC,
254                     R.drawable.ic_volume_media, R.drawable.ic_volume_media_mute, true);
255             if (!AudioSystem.isSingleVolume(mContext)) {
256                 addRow(AudioManager.STREAM_RING,
257                         R.drawable.ic_volume_ringer, R.drawable.ic_volume_ringer_mute, true);
258                 addRow(AudioManager.STREAM_ALARM,
259                         R.drawable.ic_volume_alarm, R.drawable.ic_volume_alarm_mute, false);
260                 addRow(AudioManager.STREAM_VOICE_CALL,
261                         R.drawable.ic_volume_voice, R.drawable.ic_volume_voice, false);
262                 addRow(AudioManager.STREAM_BLUETOOTH_SCO,
263                         R.drawable.ic_volume_bt_sco, R.drawable.ic_volume_bt_sco, false);
264                 addRow(AudioManager.STREAM_SYSTEM,
265                         R.drawable.ic_volume_system, R.drawable.ic_volume_system_mute, false);
266                 addRow(AudioManager.STREAM_ACCESSIBILITY, R.drawable.ic_volume_accessibility,
267                         R.drawable.ic_volume_accessibility, true);
268             }
269         } else {
270             addExistingRows();
271         }
272         mExpandButtonAnimationDuration = res.getInteger(R.integer.volume_expand_animation_duration);
273         mZenFooter = (ZenFooter) mDialog.findViewById(R.id.volume_zen_footer);
274         mZenFooter.init(mZenModeController);
275         mZenPanel = (TunerZenModePanel) mDialog.findViewById(R.id.tuner_zen_mode_panel);
276         mZenPanel.init(mZenModeController);
277         mZenPanel.setCallback(mZenPanelCallback);
278     }
279 
280     @Override
onTuningChanged(String key, String newValue)281     public void onTuningChanged(String key, String newValue) {
282         if (SHOW_FULL_ZEN.equals(key)) {
283             mShowFullZen = newValue != null && Integer.parseInt(newValue) != 0;
284         }
285     }
286 
loadColorStateList(int colorResId)287     private ColorStateList loadColorStateList(int colorResId) {
288         return ColorStateList.valueOf(mContext.getColor(colorResId));
289     }
290 
updateWindowWidthH()291     private void updateWindowWidthH() {
292         final ViewGroup.LayoutParams lp = mDialogView.getLayoutParams();
293         final DisplayMetrics dm = mContext.getResources().getDisplayMetrics();
294         if (D.BUG) Log.d(TAG, "updateWindowWidth dm.w=" + dm.widthPixels);
295         int w = dm.widthPixels;
296         final int max = mContext.getResources()
297                 .getDimensionPixelSize(R.dimen.volume_dialog_panel_width);
298         if (w > max) {
299             w = max;
300         }
301         lp.width = w;
302         mDialogView.setLayoutParams(lp);
303     }
304 
setStreamImportant(int stream, boolean important)305     public void setStreamImportant(int stream, boolean important) {
306         mHandler.obtainMessage(H.SET_STREAM_IMPORTANT, stream, important ? 1 : 0).sendToTarget();
307     }
308 
setAutomute(boolean automute)309     public void setAutomute(boolean automute) {
310         if (mAutomute == automute) return;
311         mAutomute = automute;
312         mHandler.sendEmptyMessage(H.RECHECK_ALL);
313     }
314 
setSilentMode(boolean silentMode)315     public void setSilentMode(boolean silentMode) {
316         if (mSilentMode == silentMode) return;
317         mSilentMode = silentMode;
318         mHandler.sendEmptyMessage(H.RECHECK_ALL);
319     }
320 
addRow(int stream, int iconRes, int iconMuteRes, boolean important)321     private void addRow(int stream, int iconRes, int iconMuteRes, boolean important) {
322         addRow(stream, iconRes, iconMuteRes, important, false);
323     }
324 
addRow(int stream, int iconRes, int iconMuteRes, boolean important, boolean dynamic)325     private void addRow(int stream, int iconRes, int iconMuteRes, boolean important,
326             boolean dynamic) {
327         VolumeRow row = new VolumeRow();
328         initRow(row, stream, iconRes, iconMuteRes, important);
329         int rowSize;
330         int viewSize;
331         if (mShowA11yStream && dynamic && (rowSize = mRows.size()) > 1
332                 && (viewSize = mDialogRowsView.getChildCount()) > 1) {
333             // A11y Stream should be the last in the list
334             mDialogRowsView.addView(row.view, viewSize - 2);
335             mRows.add(rowSize - 2, row);
336         } else {
337             mDialogRowsView.addView(row.view);
338             mRows.add(row);
339         }
340     }
341 
addExistingRows()342     private void addExistingRows() {
343         int N = mRows.size();
344         for (int i = 0; i < N; i++) {
345             final VolumeRow row = mRows.get(i);
346             initRow(row, row.stream, row.iconRes, row.iconMuteRes, row.important);
347             mDialogRowsView.addView(row.view);
348         }
349     }
350 
351 
isAttached()352     private boolean isAttached() {
353         return mDialogContentView != null && mDialogContentView.isAttachedToWindow();
354     }
355 
getActiveRow()356     private VolumeRow getActiveRow() {
357         for (VolumeRow row : mRows) {
358             if (row.stream == mActiveStream) {
359                 return row;
360             }
361         }
362         return mRows.get(0);
363     }
364 
findRow(int stream)365     private VolumeRow findRow(int stream) {
366         for (VolumeRow row : mRows) {
367             if (row.stream == stream) return row;
368         }
369         return null;
370     }
371 
dump(PrintWriter writer)372     public void dump(PrintWriter writer) {
373         writer.println(VolumeDialogImpl.class.getSimpleName() + " state:");
374         writer.print("  mShowing: "); writer.println(mShowing);
375         writer.print("  mExpanded: "); writer.println(mExpanded);
376         writer.print("  mExpandButtonAnimationRunning: ");
377         writer.println(mExpandButtonAnimationRunning);
378         writer.print("  mActiveStream: "); writer.println(mActiveStream);
379         writer.print("  mDynamic: "); writer.println(mDynamic);
380         writer.print("  mAutomute: "); writer.println(mAutomute);
381         writer.print("  mSilentMode: "); writer.println(mSilentMode);
382         writer.print("  mCollapseTime: "); writer.println(mCollapseTime);
383         writer.print("  mAccessibility.mFeedbackEnabled: ");
384         writer.println(mAccessibility.mFeedbackEnabled);
385     }
386 
getImpliedLevel(SeekBar seekBar, int progress)387     private static int getImpliedLevel(SeekBar seekBar, int progress) {
388         final int m = seekBar.getMax();
389         final int n = m / 100 - 1;
390         final int level = progress == 0 ? 0
391                 : progress == m ? (m / 100) : (1 + (int)((progress / (float) m) * n));
392         return level;
393     }
394 
395     @SuppressLint("InflateParams")
initRow(final VolumeRow row, final int stream, int iconRes, int iconMuteRes, boolean important)396     private void initRow(final VolumeRow row, final int stream, int iconRes, int iconMuteRes,
397             boolean important) {
398         row.stream = stream;
399         row.iconRes = iconRes;
400         row.iconMuteRes = iconMuteRes;
401         row.important = important;
402         row.view = mDialog.getLayoutInflater().inflate(R.layout.volume_dialog_row, null);
403         row.view.setId(row.stream);
404         row.view.setTag(row);
405         row.header = (TextView) row.view.findViewById(R.id.volume_row_header);
406         row.header.setId(20 * row.stream);
407         row.slider = (SeekBar) row.view.findViewById(R.id.volume_row_slider);
408         row.slider.setOnSeekBarChangeListener(new VolumeSeekBarChangeListener(row));
409         row.anim = null;
410 
411         // forward events above the slider into the slider
412         row.view.setOnTouchListener(new OnTouchListener() {
413             private final Rect mSliderHitRect = new Rect();
414             private boolean mDragging;
415 
416             @SuppressLint("ClickableViewAccessibility")
417             @Override
418             public boolean onTouch(View v, MotionEvent event) {
419                 row.slider.getHitRect(mSliderHitRect);
420                 if (!mDragging && event.getActionMasked() == MotionEvent.ACTION_DOWN
421                         && event.getY() < mSliderHitRect.top) {
422                     mDragging = true;
423                 }
424                 if (mDragging) {
425                     event.offsetLocation(-mSliderHitRect.left, -mSliderHitRect.top);
426                     row.slider.dispatchTouchEvent(event);
427                     if (event.getActionMasked() == MotionEvent.ACTION_UP
428                             || event.getActionMasked() == MotionEvent.ACTION_CANCEL) {
429                         mDragging = false;
430                     }
431                     return true;
432                 }
433                 return false;
434             }
435         });
436         row.icon = row.view.findViewById(R.id.volume_row_icon);
437         row.icon.setImageResource(iconRes);
438         if (row.stream != AudioSystem.STREAM_ACCESSIBILITY) {
439             row.icon.setOnClickListener(new OnClickListener() {
440                 @Override
441                 public void onClick(View v) {
442                     Events.writeEvent(mContext, Events.EVENT_ICON_CLICK, row.stream, row.iconState);
443                     mController.setActiveStream(row.stream);
444                     if (row.stream == AudioManager.STREAM_RING) {
445                         final boolean hasVibrator = mController.hasVibrator();
446                         if (mState.ringerModeInternal == AudioManager.RINGER_MODE_NORMAL) {
447                             if (hasVibrator) {
448                                 mController.setRingerMode(AudioManager.RINGER_MODE_VIBRATE, false);
449                             } else {
450                                 final boolean wasZero = row.ss.level == 0;
451                                 mController.setStreamVolume(stream,
452                                         wasZero ? row.lastAudibleLevel : 0);
453                             }
454                         } else {
455                             mController.setRingerMode(AudioManager.RINGER_MODE_NORMAL, false);
456                             if (row.ss.level == 0) {
457                                 mController.setStreamVolume(stream, 1);
458                             }
459                         }
460                     } else {
461                         final boolean vmute = row.ss.level == row.ss.levelMin;
462                         mController.setStreamVolume(stream,
463                                 vmute ? row.lastAudibleLevel : row.ss.levelMin);
464                     }
465                     row.userAttempt = 0;  // reset the grace period, slider updates immediately
466                 }
467             });
468         } else {
469             row.icon.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
470         }
471     }
472 
show(int reason)473     public void show(int reason) {
474         mHandler.obtainMessage(H.SHOW, reason, 0).sendToTarget();
475     }
476 
dismiss(int reason)477     public void dismiss(int reason) {
478         mHandler.obtainMessage(H.DISMISS, reason, 0).sendToTarget();
479     }
480 
showH(int reason)481     private void showH(int reason) {
482         if (D.BUG) Log.d(TAG, "showH r=" + Events.DISMISS_REASONS[reason]);
483         mHandler.removeMessages(H.SHOW);
484         mHandler.removeMessages(H.DISMISS);
485         rescheduleTimeoutH();
486         if (mShowing) return;
487         mShowing = true;
488         mMotion.startShow();
489         Events.writeEvent(mContext, Events.EVENT_SHOW_DIALOG, reason, mKeyguard.isKeyguardLocked());
490         mController.notifyVisible(true);
491     }
492 
rescheduleTimeoutH()493     protected void rescheduleTimeoutH() {
494         mHandler.removeMessages(H.DISMISS);
495         final int timeout = computeTimeoutH();
496         mHandler.sendMessageDelayed(mHandler
497                 .obtainMessage(H.DISMISS, Events.DISMISS_REASON_TIMEOUT, 0), timeout);
498         if (D.BUG) Log.d(TAG, "rescheduleTimeout " + timeout + " " + Debug.getCaller());
499         mController.userActivity();
500     }
501 
computeTimeoutH()502     private int computeTimeoutH() {
503         if (mAccessibility.mFeedbackEnabled) return 20000;
504         if (mHovering) return 16000;
505         if (mSafetyWarning != null) return 5000;
506         if (mExpanded || mExpandButtonAnimationRunning) return 5000;
507         if (mActiveStream == AudioManager.STREAM_MUSIC) return 1500;
508         return 3000;
509     }
510 
dismissH(int reason)511     protected void dismissH(int reason) {
512         if (mMotion.isAnimating()) {
513             return;
514         }
515         mHandler.removeMessages(H.DISMISS);
516         mHandler.removeMessages(H.SHOW);
517         if (!mShowing) return;
518         mShowing = false;
519         mMotion.startDismiss(new Runnable() {
520             @Override
521             public void run() {
522                 updateExpandedH(false /* expanding */, true /* dismissing */);
523             }
524         });
525         if (mAccessibilityMgr.isEnabled()) {
526             AccessibilityEvent event =
527                     AccessibilityEvent.obtain(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
528             event.setPackageName(mContext.getPackageName());
529             event.setClassName(CustomDialog.class.getSuperclass().getName());
530             event.getText().add(mContext.getString(
531                     R.string.volume_dialog_accessibility_dismissed_message));
532             mAccessibilityMgr.sendAccessibilityEvent(event);
533         }
534         Events.writeEvent(mContext, Events.EVENT_DISMISS_DIALOG, reason);
535         mController.notifyVisible(false);
536         synchronized (mSafetyWarningLock) {
537             if (mSafetyWarning != null) {
538                 if (D.BUG) Log.d(TAG, "SafetyWarning dismissed");
539                 mSafetyWarning.dismiss();
540             }
541         }
542     }
543 
updateDialogBottomMarginH()544     private void updateDialogBottomMarginH() {
545         final long diff = System.currentTimeMillis() - mCollapseTime;
546         final boolean collapsing = mCollapseTime != 0 && diff < getConservativeCollapseDuration();
547         final ViewGroup.MarginLayoutParams mlp = (MarginLayoutParams) mDialogView.getLayoutParams();
548         final int bottomMargin = collapsing ? mDialogContentView.getHeight() :
549                 mContext.getResources().getDimensionPixelSize(R.dimen.volume_dialog_margin_bottom);
550         if (bottomMargin != mlp.bottomMargin) {
551             if (D.BUG) Log.d(TAG, "bottomMargin " + mlp.bottomMargin + " -> " + bottomMargin);
552             mlp.bottomMargin = bottomMargin;
553             mDialogView.setLayoutParams(mlp);
554         }
555     }
556 
557     private long getConservativeCollapseDuration() {
558         return mExpandButtonAnimationDuration * 3;
559     }
560 
561     private void prepareForCollapse() {
562         mHandler.removeMessages(H.UPDATE_BOTTOM_MARGIN);
563         mCollapseTime = System.currentTimeMillis();
564         updateDialogBottomMarginH();
565         mHandler.sendEmptyMessageDelayed(H.UPDATE_BOTTOM_MARGIN, getConservativeCollapseDuration());
566     }
567 
568     private void updateExpandedH(final boolean expanded, final boolean dismissing) {
569         if (mExpanded == expanded) return;
570         mExpanded = expanded;
571         mExpandButtonAnimationRunning = isAttached();
572         if (D.BUG) Log.d(TAG, "updateExpandedH " + expanded);
573         updateExpandButtonH();
574         updateFooterH();
575         TransitionManager.endTransitions(mDialogView);
576         final VolumeRow activeRow = getActiveRow();
577         if (!dismissing) {
578             mWindow.setLayout(mWindow.getAttributes().width, ViewGroup.LayoutParams.MATCH_PARENT);
579             TransitionManager.beginDelayedTransition(mDialogView, getTransistion());
580         }
581         updateRowsH(activeRow);
582         rescheduleTimeoutH();
583     }
584 
585     private void updateExpandButtonH() {
586         if (D.BUG) Log.d(TAG, "updateExpandButtonH");
587         mExpandButton.setClickable(!mExpandButtonAnimationRunning);
588         if (!(mExpandButtonAnimationRunning && isAttached())) {
589             final int res = mExpanded ? R.drawable.ic_volume_collapse_animation
590                     : R.drawable.ic_volume_expand_animation;
591             if (hasTouchFeature()) {
592                 mExpandButton.setImageResource(res);
593             } else {
594                 // if there is no touch feature, show the volume ringer instead
595                 mExpandButton.setImageResource(R.drawable.ic_volume_ringer);
596                 mExpandButton.setBackgroundResource(0);  // remove gray background emphasis
597             }
598             mExpandButton.setContentDescription(mContext.getString(mExpanded ?
599                     R.string.accessibility_volume_collapse : R.string.accessibility_volume_expand));
600         }
601         if (mExpandButtonAnimationRunning) {
602             final Drawable d = mExpandButton.getDrawable();
603             if (d instanceof AnimatedVectorDrawable) {
604                 // workaround to reset drawable
605                 final AnimatedVectorDrawable avd = (AnimatedVectorDrawable) d.getConstantState()
606                         .newDrawable();
607                 mExpandButton.setImageDrawable(avd);
608                 avd.start();
609                 mHandler.postDelayed(new Runnable() {
610                     @Override
611                     public void run() {
612                         mExpandButtonAnimationRunning = false;
613                         updateExpandButtonH();
614                         rescheduleTimeoutH();
615                     }
616                 }, mExpandButtonAnimationDuration);
617             }
618         }
619     }
620 
621     private boolean shouldBeVisibleH(VolumeRow row, boolean isActive) {
622         if (row.stream == AudioSystem.STREAM_ACCESSIBILITY) {
623             return mShowA11yStream;
624         }
625         return mExpanded && row.view.getVisibility() == View.VISIBLE
626                 || (mExpanded && (row.important || isActive))
627                 || !mExpanded && isActive;
628     }
629 
630     private void updateRowsH(final VolumeRow activeRow) {
631         if (D.BUG) Log.d(TAG, "updateRowsH");
632         if (!mShowing) {
633             trimObsoleteH();
634         }
635         // apply changes to all rows
636         for (final VolumeRow row : mRows) {
637             final boolean isActive = row == activeRow;
638             final boolean shouldBeVisible = shouldBeVisibleH(row, isActive);
639             Util.setVisOrGone(row.view, shouldBeVisible);
640             Util.setVisOrGone(row.header, shouldBeVisible);
641             if (row.view.isShown()) {
642                 updateVolumeRowSliderTintH(row, isActive);
643             }
644         }
645     }
646 
647     private void trimObsoleteH() {
648         if (D.BUG) Log.d(TAG, "trimObsoleteH");
649         for (int i = mRows.size() - 1; i >= 0; i--) {
650             final VolumeRow row = mRows.get(i);
651             if (row.ss == null || !row.ss.dynamic) continue;
652             if (!mDynamic.get(row.stream)) {
653                 mRows.remove(i);
654                 mDialogRowsView.removeView(row.view);
655             }
656         }
657     }
658 
onStateChangedH(State state)659     private void onStateChangedH(State state) {
660         final boolean animating = mMotion.isAnimating();
661         if (D.BUG) Log.d(TAG, "onStateChangedH animating=" + animating);
662         mState = state;
663         if (animating) {
664             mPendingStateChanged = true;
665             return;
666         }
667         mDynamic.clear();
668         // add any new dynamic rows
669         for (int i = 0; i < state.states.size(); i++) {
670             final int stream = state.states.keyAt(i);
671             final StreamState ss = state.states.valueAt(i);
672             if (!ss.dynamic) continue;
673             mDynamic.put(stream, true);
674             if (findRow(stream) == null) {
675                 addRow(stream, R.drawable.ic_volume_remote, R.drawable.ic_volume_remote_mute, true,
676                         true);
677             }
678         }
679 
680         if (mActiveStream != state.activeStream) {
681             mActiveStream = state.activeStream;
682             updateRowsH(getActiveRow());
683             rescheduleTimeoutH();
684         }
685         for (VolumeRow row : mRows) {
686             updateVolumeRowH(row);
687         }
688         updateFooterH();
689     }
690 
updateFooterH()691     private void updateFooterH() {
692         if (D.BUG) Log.d(TAG, "updateFooterH");
693         final boolean wasVisible = mZenFooter.getVisibility() == View.VISIBLE;
694         final boolean visible = mState.zenMode != Global.ZEN_MODE_OFF
695                 && (mAudioManager.isStreamAffectedByRingerMode(mActiveStream) || mExpanded)
696                 && !mZenPanel.isEditing();
697 
698         if (wasVisible != visible) {
699             mZenFooter.update();
700             Util.setVisOrGone(mZenFooter, visible);
701         }
702 
703         final boolean fullWasVisible = mZenPanel.getVisibility() == View.VISIBLE;
704         final boolean fullVisible = mShowFullZen && !visible;
705         if (fullWasVisible != fullVisible) {
706             Util.setVisOrGone(mZenPanel, fullVisible);
707             if (fullVisible) {
708                 mZenPanel.setZenState(mState.zenMode);
709                 mZenPanel.setDoneListener(new OnClickListener() {
710                     @Override
711                     public void onClick(View v) {
712                         mHandler.sendEmptyMessage(H.UPDATE_FOOTER);
713                     }
714                 });
715             }
716         }
717     }
718 
updateVolumeRowH(VolumeRow row)719     private void updateVolumeRowH(VolumeRow row) {
720         if (D.BUG) Log.d(TAG, "updateVolumeRowH s=" + row.stream);
721         if (mState == null) return;
722         final StreamState ss = mState.states.get(row.stream);
723         if (ss == null) return;
724         row.ss = ss;
725         if (ss.level > 0) {
726             row.lastAudibleLevel = ss.level;
727         }
728         if (ss.level == row.requestedLevel) {
729             row.requestedLevel = -1;
730         }
731         final boolean isA11yStream = row.stream == AudioManager.STREAM_ACCESSIBILITY;
732         final boolean isRingStream = row.stream == AudioManager.STREAM_RING;
733         final boolean isSystemStream = row.stream == AudioManager.STREAM_SYSTEM;
734         final boolean isAlarmStream = row.stream == AudioManager.STREAM_ALARM;
735         final boolean isMusicStream = row.stream == AudioManager.STREAM_MUSIC;
736         final boolean isRingVibrate = isRingStream
737                 && mState.ringerModeInternal == AudioManager.RINGER_MODE_VIBRATE;
738         final boolean isRingSilent = isRingStream
739                 && mState.ringerModeInternal == AudioManager.RINGER_MODE_SILENT;
740         final boolean isZenAlarms = mState.zenMode == Global.ZEN_MODE_ALARMS;
741         final boolean isZenNone = mState.zenMode == Global.ZEN_MODE_NO_INTERRUPTIONS;
742         final boolean zenMuted = isZenAlarms ? (isRingStream || isSystemStream)
743                 : isZenNone ? (isRingStream || isSystemStream || isAlarmStream || isMusicStream)
744                 : false;
745 
746         // update slider max
747         final int max = ss.levelMax * 100;
748         if (max != row.slider.getMax()) {
749             row.slider.setMax(max);
750         }
751 
752         // update header text
753         Util.setText(row.header, getStreamLabelH(ss));
754         mConfigurableTexts.add(row.header, ss.name);
755 
756         // update icon
757         final boolean iconEnabled = (mAutomute || ss.muteSupported) && !zenMuted;
758         row.icon.setEnabled(iconEnabled);
759         row.icon.setAlpha(iconEnabled ? 1 : 0.5f);
760         final int iconRes =
761                 isRingVibrate ? R.drawable.ic_volume_ringer_vibrate
762                 : isRingSilent || zenMuted ? row.cachedIconRes
763                 : ss.routedToBluetooth ?
764                         (ss.muted ? R.drawable.ic_volume_media_bt_mute
765                                 : R.drawable.ic_volume_media_bt)
766                 : mAutomute && ss.level == 0 ? row.iconMuteRes
767                 : (ss.muted ? row.iconMuteRes : row.iconRes);
768         if (iconRes != row.cachedIconRes) {
769             if (row.cachedIconRes != 0 && isRingVibrate) {
770                 mController.vibrate();
771             }
772             row.cachedIconRes = iconRes;
773             row.icon.setImageResource(iconRes);
774         }
775         row.iconState =
776                 iconRes == R.drawable.ic_volume_ringer_vibrate ? Events.ICON_STATE_VIBRATE
777                 : (iconRes == R.drawable.ic_volume_media_bt_mute || iconRes == row.iconMuteRes)
778                         ? Events.ICON_STATE_MUTE
779                 : (iconRes == R.drawable.ic_volume_media_bt || iconRes == row.iconRes)
780                         ? Events.ICON_STATE_UNMUTE
781                 : Events.ICON_STATE_UNKNOWN;
782         if (iconEnabled) {
783             if (isRingStream) {
784                 if (isRingVibrate) {
785                     row.icon.setContentDescription(mContext.getString(
786                             R.string.volume_stream_content_description_unmute,
787                             getStreamLabelH(ss)));
788                 } else {
789                     if (mController.hasVibrator()) {
790                         row.icon.setContentDescription(mContext.getString(
791                                 mShowA11yStream
792                                         ? R.string.volume_stream_content_description_vibrate_a11y
793                                         : R.string.volume_stream_content_description_vibrate,
794                                 getStreamLabelH(ss)));
795                     } else {
796                         row.icon.setContentDescription(mContext.getString(
797                                 mShowA11yStream
798                                         ? R.string.volume_stream_content_description_mute_a11y
799                                         : R.string.volume_stream_content_description_mute,
800                                 getStreamLabelH(ss)));
801                     }
802                 }
803             } else if (isA11yStream) {
804                 row.icon.setContentDescription(getStreamLabelH(ss));
805             } else {
806                 if (ss.muted || mAutomute && ss.level == 0) {
807                    row.icon.setContentDescription(mContext.getString(
808                            R.string.volume_stream_content_description_unmute,
809                            getStreamLabelH(ss)));
810                 } else {
811                     row.icon.setContentDescription(mContext.getString(
812                             mShowA11yStream
813                                     ? R.string.volume_stream_content_description_mute_a11y
814                                     : R.string.volume_stream_content_description_mute,
815                             getStreamLabelH(ss)));
816                 }
817             }
818         } else {
819             row.icon.setContentDescription(getStreamLabelH(ss));
820         }
821 
822         // update slider
823         final boolean enableSlider = !zenMuted;
824         final int vlevel = row.ss.muted && (!isRingStream && !zenMuted) ? 0
825                 : row.ss.level;
826         updateVolumeRowSliderH(row, enableSlider, vlevel);
827     }
828 
updateVolumeRowSliderTintH(VolumeRow row, boolean isActive)829     private void updateVolumeRowSliderTintH(VolumeRow row, boolean isActive) {
830         if (isActive && mExpanded) {
831             row.slider.requestFocus();
832         }
833         final ColorStateList tint = isActive && row.slider.isEnabled() ? mActiveSliderTint
834                 : mInactiveSliderTint;
835         if (tint == row.cachedSliderTint) return;
836         row.cachedSliderTint = tint;
837         row.slider.setProgressTintList(tint);
838         row.slider.setThumbTintList(tint);
839     }
840 
updateVolumeRowSliderH(VolumeRow row, boolean enable, int vlevel)841     private void updateVolumeRowSliderH(VolumeRow row, boolean enable, int vlevel) {
842         row.slider.setEnabled(enable);
843         updateVolumeRowSliderTintH(row, row.stream == mActiveStream);
844         if (row.tracking) {
845             return;  // don't update if user is sliding
846         }
847         final int progress = row.slider.getProgress();
848         final int level = getImpliedLevel(row.slider, progress);
849         final boolean rowVisible = row.view.getVisibility() == View.VISIBLE;
850         final boolean inGracePeriod = (SystemClock.uptimeMillis() - row.userAttempt)
851                 < USER_ATTEMPT_GRACE_PERIOD;
852         mHandler.removeMessages(H.RECHECK, row);
853         if (mShowing && rowVisible && inGracePeriod) {
854             if (D.BUG) Log.d(TAG, "inGracePeriod");
855             mHandler.sendMessageAtTime(mHandler.obtainMessage(H.RECHECK, row),
856                     row.userAttempt + USER_ATTEMPT_GRACE_PERIOD);
857             return;  // don't update if visible and in grace period
858         }
859         if (vlevel == level) {
860             if (mShowing && rowVisible) {
861                 return;  // don't clamp if visible
862             }
863         }
864         final int newProgress = vlevel * 100;
865         if (progress != newProgress) {
866             if (mShowing && rowVisible) {
867                 // animate!
868                 if (row.anim != null && row.anim.isRunning()
869                         && row.animTargetProgress == newProgress) {
870                     return;  // already animating to the target progress
871                 }
872                 // start/update animation
873                 if (row.anim == null) {
874                     row.anim = ObjectAnimator.ofInt(row.slider, "progress", progress, newProgress);
875                     row.anim.setInterpolator(new DecelerateInterpolator());
876                 } else {
877                     row.anim.cancel();
878                     row.anim.setIntValues(progress, newProgress);
879                 }
880                 row.animTargetProgress = newProgress;
881                 row.anim.setDuration(UPDATE_ANIMATION_DURATION);
882                 row.anim.start();
883             } else {
884                 // update slider directly to clamped value
885                 if (row.anim != null) {
886                     row.anim.cancel();
887                 }
888                 row.slider.setProgress(newProgress, true);
889             }
890         }
891     }
892 
893     private void recheckH(VolumeRow row) {
894         if (row == null) {
895             if (D.BUG) Log.d(TAG, "recheckH ALL");
896             trimObsoleteH();
897             for (VolumeRow r : mRows) {
898                 updateVolumeRowH(r);
899             }
900         } else {
901             if (D.BUG) Log.d(TAG, "recheckH " + row.stream);
902             updateVolumeRowH(row);
903         }
904     }
905 
906     private void setStreamImportantH(int stream, boolean important) {
907         for (VolumeRow row : mRows) {
908             if (row.stream == stream) {
909                 row.important = important;
910                 return;
911             }
912         }
913     }
914 
915     private void showSafetyWarningH(int flags) {
916         if ((flags & (AudioManager.FLAG_SHOW_UI | AudioManager.FLAG_SHOW_UI_WARNINGS)) != 0
917                 || mShowing) {
918             synchronized (mSafetyWarningLock) {
919                 if (mSafetyWarning != null) {
920                     return;
921                 }
922                 mSafetyWarning = new SafetyWarningDialog(mContext, mController.getAudioManager()) {
923                     @Override
924                     protected void cleanUp() {
925                         synchronized (mSafetyWarningLock) {
926                             mSafetyWarning = null;
927                         }
928                         recheckH(null);
929                     }
930                 };
931                 mSafetyWarning.show();
932             }
933             recheckH(null);
934         }
935         rescheduleTimeoutH();
936     }
937 
938     private String getStreamLabelH(StreamState ss) {
939         if (ss.remoteLabel != null) {
940             return ss.remoteLabel;
941         }
942         try {
943             return mContext.getString(ss.name);
944         } catch (Resources.NotFoundException e) {
945             Slog.e(TAG, "Can't find translation for stream " + ss);
946             return "";
947         }
948     }
949 
950     private AutoTransition getTransistion() {
951         AutoTransition transition = new AutoTransition();
952         transition.setDuration(mExpandButtonAnimationDuration);
953         transition.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN);
954         transition.addListener(new Transition.TransitionListener() {
955             @Override
956             public void onTransitionStart(Transition transition) {
957             }
958 
959             @Override
960             public void onTransitionEnd(Transition transition) {
961                 mWindow.setLayout(
962                         mWindow.getAttributes().width, ViewGroup.LayoutParams.WRAP_CONTENT);
963             }
964 
965             @Override
966             public void onTransitionCancel(Transition transition) {
967             }
968 
969             @Override
970             public void onTransitionPause(Transition transition) {
971                 mWindow.setLayout(
972                         mWindow.getAttributes().width, ViewGroup.LayoutParams.WRAP_CONTENT);
973             }
974 
975             @Override
976             public void onTransitionResume(Transition transition) {
977             }
978         });
979         return transition;
980     }
981 
982     private boolean hasTouchFeature() {
983         final PackageManager pm = mContext.getPackageManager();
984         return pm.hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN);
985     }
986 
987     private final VolumeDialogController.Callbacks mControllerCallbackH
988             = new VolumeDialogController.Callbacks() {
989         @Override
990         public void onShowRequested(int reason) {
991             showH(reason);
992         }
993 
994         @Override
995         public void onDismissRequested(int reason) {
996             dismissH(reason);
997         }
998 
999         @Override
1000         public void onScreenOff() {
1001             dismissH(Events.DISMISS_REASON_SCREEN_OFF);
1002         }
1003 
1004         @Override
1005         public void onStateChanged(State state) {
1006             onStateChangedH(state);
1007         }
1008 
1009         @Override
1010         public void onLayoutDirectionChanged(int layoutDirection) {
1011             mDialogView.setLayoutDirection(layoutDirection);
1012         }
1013 
1014         @Override
1015         public void onConfigurationChanged() {
1016             Configuration newConfig = mContext.getResources().getConfiguration();
1017             final int density = newConfig.densityDpi;
1018             if (density != mDensity) {
1019                 mDialog.dismiss();
1020                 mZenFooter.cleanup();
1021                 initDialog();
1022                 mDensity = density;
1023             }
1024             updateWindowWidthH();
1025             mConfigurableTexts.update();
1026             mZenFooter.onConfigurationChanged();
1027         }
1028 
1029         @Override
1030         public void onShowVibrateHint() {
1031             if (mSilentMode) {
1032                 mController.setRingerMode(AudioManager.RINGER_MODE_SILENT, false);
1033             }
1034         }
1035 
1036         @Override
1037         public void onShowSilentHint() {
1038             if (mSilentMode) {
1039                 mController.setRingerMode(AudioManager.RINGER_MODE_NORMAL, false);
1040             }
1041         }
1042 
1043         @Override
1044         public void onShowSafetyWarning(int flags) {
1045             showSafetyWarningH(flags);
1046         }
1047 
1048         @Override
1049         public void onAccessibilityModeChanged(Boolean showA11yStream) {
1050             boolean show = showA11yStream == null ? false : showA11yStream;
1051             mShowA11yStream = show;
1052             updateRowsH(getActiveRow());
1053 
1054         }
1055     };
1056 
1057     private final ZenModePanel.Callback mZenPanelCallback = new ZenModePanel.Callback() {
1058         @Override
1059         public void onPrioritySettings() {
1060             mCallback.onZenPrioritySettingsClicked();
1061         }
1062 
1063         @Override
1064         public void onInteraction() {
1065             mHandler.sendEmptyMessage(H.RESCHEDULE_TIMEOUT);
1066         }
1067 
1068         @Override
1069         public void onExpanded(boolean expanded) {
1070             // noop.
1071         }
1072     };
1073 
1074     private final OnClickListener mClickExpand = new OnClickListener() {
1075         @Override
1076         public void onClick(View v) {
1077             if (mExpandButtonAnimationRunning) return;
1078             final boolean newExpand = !mExpanded;
1079             Events.writeEvent(mContext, Events.EVENT_EXPAND, newExpand);
1080             updateExpandedH(newExpand, false /* dismissing */);
1081         }
1082     };
1083 
1084     private final class H extends Handler {
1085         private static final int SHOW = 1;
1086         private static final int DISMISS = 2;
1087         private static final int RECHECK = 3;
1088         private static final int RECHECK_ALL = 4;
1089         private static final int SET_STREAM_IMPORTANT = 5;
1090         private static final int RESCHEDULE_TIMEOUT = 6;
1091         private static final int STATE_CHANGED = 7;
1092         private static final int UPDATE_BOTTOM_MARGIN = 8;
1093         private static final int UPDATE_FOOTER = 9;
1094 
1095         public H() {
1096             super(Looper.getMainLooper());
1097         }
1098 
1099         @Override
1100         public void handleMessage(Message msg) {
1101             switch (msg.what) {
1102                 case SHOW: showH(msg.arg1); break;
1103                 case DISMISS: dismissH(msg.arg1); break;
1104                 case RECHECK: recheckH((VolumeRow) msg.obj); break;
1105                 case RECHECK_ALL: recheckH(null); break;
1106                 case SET_STREAM_IMPORTANT: setStreamImportantH(msg.arg1, msg.arg2 != 0); break;
1107                 case RESCHEDULE_TIMEOUT: rescheduleTimeoutH(); break;
1108                 case STATE_CHANGED: onStateChangedH(mState); break;
1109                 case UPDATE_BOTTOM_MARGIN: updateDialogBottomMarginH(); break;
1110                 case UPDATE_FOOTER: updateFooterH(); break;
1111             }
1112         }
1113     }
1114 
1115     private final class CustomDialog extends Dialog {
1116         public CustomDialog(Context context) {
1117             super(context);
1118         }
1119 
1120         @Override
1121         public boolean dispatchTouchEvent(MotionEvent ev) {
1122             rescheduleTimeoutH();
1123             return super.dispatchTouchEvent(ev);
1124         }
1125 
1126         @Override
1127         protected void onStop() {
1128             super.onStop();
1129             final boolean animating = mMotion.isAnimating();
1130             if (D.BUG) Log.d(TAG, "onStop animating=" + animating);
1131             if (animating) {
1132                 mPendingRecheckAll = true;
1133                 return;
1134             }
1135             mHandler.sendEmptyMessage(H.RECHECK_ALL);
1136         }
1137 
1138         @Override
1139         public boolean onTouchEvent(MotionEvent event) {
1140             if (isShowing()) {
1141                 if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {
1142                     dismissH(Events.DISMISS_REASON_TOUCH_OUTSIDE);
1143                     return true;
1144                 }
1145             }
1146             return false;
1147         }
1148 
1149         @Override
1150         public boolean dispatchPopulateAccessibilityEvent(@NonNull AccessibilityEvent event) {
1151             event.setClassName(getClass().getSuperclass().getName());
1152             event.setPackageName(mContext.getPackageName());
1153 
1154             ViewGroup.LayoutParams params = getWindow().getAttributes();
1155             boolean isFullScreen = (params.width == ViewGroup.LayoutParams.MATCH_PARENT) &&
1156                     (params.height == ViewGroup.LayoutParams.MATCH_PARENT);
1157             event.setFullScreen(isFullScreen);
1158 
1159             if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED) {
1160                 if (mShowing) {
1161                     event.getText().add(mContext.getString(
1162                             R.string.volume_dialog_accessibility_shown_message,
1163                             getStreamLabelH(getActiveRow().ss)));
1164                     return true;
1165                 }
1166             }
1167             return false;
1168         }
1169     }
1170 
1171     private final class VolumeSeekBarChangeListener implements OnSeekBarChangeListener {
1172         private final VolumeRow mRow;
1173 
1174         private VolumeSeekBarChangeListener(VolumeRow row) {
1175             mRow = row;
1176         }
1177 
1178         @Override
1179         public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
1180             if (mRow.ss == null) return;
1181             if (D.BUG) Log.d(TAG, AudioSystem.streamToString(mRow.stream)
1182                     + " onProgressChanged " + progress + " fromUser=" + fromUser);
1183             if (!fromUser) return;
1184             if (mRow.ss.levelMin > 0) {
1185                 final int minProgress = mRow.ss.levelMin * 100;
1186                 if (progress < minProgress) {
1187                     seekBar.setProgress(minProgress);
1188                     progress = minProgress;
1189                 }
1190             }
1191             final int userLevel = getImpliedLevel(seekBar, progress);
1192             if (mRow.ss.level != userLevel || mRow.ss.muted && userLevel > 0) {
1193                 mRow.userAttempt = SystemClock.uptimeMillis();
1194                 if (mRow.requestedLevel != userLevel) {
1195                     mController.setStreamVolume(mRow.stream, userLevel);
1196                     mRow.requestedLevel = userLevel;
1197                     Events.writeEvent(mContext, Events.EVENT_TOUCH_LEVEL_CHANGED, mRow.stream,
1198                             userLevel);
1199                 }
1200             }
1201         }
1202 
1203         @Override
onStartTrackingTouch(SeekBar seekBar)1204         public void onStartTrackingTouch(SeekBar seekBar) {
1205             if (D.BUG) Log.d(TAG, "onStartTrackingTouch"+ " " + mRow.stream);
1206             mController.setActiveStream(mRow.stream);
1207             mRow.tracking = true;
1208         }
1209 
1210         @Override
onStopTrackingTouch(SeekBar seekBar)1211         public void onStopTrackingTouch(SeekBar seekBar) {
1212             if (D.BUG) Log.d(TAG, "onStopTrackingTouch"+ " " + mRow.stream);
1213             mRow.tracking = false;
1214             mRow.userAttempt = SystemClock.uptimeMillis();
1215             final int userLevel = getImpliedLevel(seekBar, seekBar.getProgress());
1216             Events.writeEvent(mContext, Events.EVENT_TOUCH_LEVEL_DONE, mRow.stream, userLevel);
1217             if (mRow.ss.level != userLevel) {
1218                 mHandler.sendMessageDelayed(mHandler.obtainMessage(H.RECHECK, mRow),
1219                         USER_ATTEMPT_GRACE_PERIOD);
1220             }
1221         }
1222     }
1223 
1224     private final class Accessibility extends AccessibilityDelegate {
1225         private boolean mFeedbackEnabled;
1226 
init()1227         public void init() {
1228             mDialogView.addOnAttachStateChangeListener(new OnAttachStateChangeListener() {
1229                 @Override
1230                 public void onViewDetachedFromWindow(View v) {
1231                     if (D.BUG) Log.d(TAG, "onViewDetachedFromWindow");
1232                 }
1233 
1234                 @Override
1235                 public void onViewAttachedToWindow(View v) {
1236                     if (D.BUG) Log.d(TAG, "onViewAttachedToWindow");
1237                     updateFeedbackEnabled();
1238                 }
1239             });
1240             mDialogView.setAccessibilityDelegate(this);
1241             mAccessibilityMgr.addAccessibilityStateChangeListener(
1242                     new AccessibilityStateChangeListener() {
1243                         @Override
1244                         public void onAccessibilityStateChanged(boolean enabled) {
1245                             updateFeedbackEnabled();
1246                         }
1247                     });
1248             updateFeedbackEnabled();
1249         }
1250 
1251         @Override
onRequestSendAccessibilityEvent(ViewGroup host, View child, AccessibilityEvent event)1252         public boolean onRequestSendAccessibilityEvent(ViewGroup host, View child,
1253                 AccessibilityEvent event) {
1254             rescheduleTimeoutH();
1255             return super.onRequestSendAccessibilityEvent(host, child, event);
1256         }
1257 
updateFeedbackEnabled()1258         private void updateFeedbackEnabled() {
1259             mFeedbackEnabled = computeFeedbackEnabled();
1260         }
1261 
computeFeedbackEnabled()1262         private boolean computeFeedbackEnabled() {
1263             // are there any enabled non-generic a11y services?
1264             final List<AccessibilityServiceInfo> services =
1265                     mAccessibilityMgr.getEnabledAccessibilityServiceList(FEEDBACK_ALL_MASK);
1266             for (AccessibilityServiceInfo asi : services) {
1267                 if (asi.feedbackType != 0 && asi.feedbackType != FEEDBACK_GENERIC) {
1268                     return true;
1269                 }
1270             }
1271             return false;
1272         }
1273     }
1274 
1275     private static class VolumeRow {
1276         private View view;
1277         private TextView header;
1278         private ImageButton icon;
1279         private SeekBar slider;
1280         private int stream;
1281         private StreamState ss;
1282         private long userAttempt;  // last user-driven slider change
1283         private boolean tracking;  // tracking slider touch
1284         private int requestedLevel = -1;  // pending user-requested level via progress changed
1285         private int iconRes;
1286         private int iconMuteRes;
1287         private boolean important;
1288         private int cachedIconRes;
1289         private ColorStateList cachedSliderTint;
1290         private int iconState;  // from Events
1291         private ObjectAnimator anim;  // slider progress animation for non-touch-related updates
1292         private int animTargetProgress;
1293         private int lastAudibleLevel = 1;
1294     }
1295 }
1296