HeadsUpNotificationView.java revision a6d4fb60ed241002210f27c94fbf363430152fe7 
1/*
2 * Copyright (C) 2011 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
17package com.android.systemui.statusbar.policy;
18
19import android.content.Context;
20import android.content.res.Configuration;
21import android.content.res.Resources;
22import android.database.ContentObserver;
23import android.graphics.Outline;
24import android.graphics.Rect;
25import android.os.SystemClock;
26import android.provider.Settings;
27import android.util.ArrayMap;
28import android.util.AttributeSet;
29import android.util.Log;
30import android.view.MotionEvent;
31import android.view.View;
32import android.view.ViewConfiguration;
33import android.view.ViewGroup;
34import android.view.ViewOutlineProvider;
35import android.view.ViewTreeObserver;
36import android.view.accessibility.AccessibilityEvent;
37import android.widget.FrameLayout;
38
39import com.android.systemui.ExpandHelper;
40import com.android.systemui.Gefingerpoken;
41import com.android.systemui.R;
42import com.android.systemui.SwipeHelper;
43import com.android.systemui.statusbar.ExpandableView;
44import com.android.systemui.statusbar.NotificationData;
45import com.android.systemui.statusbar.phone.PhoneStatusBar;
46
47import java.util.ArrayList;
48
49public class HeadsUpNotificationView extends FrameLayout implements SwipeHelper.Callback, ExpandHelper.Callback,
50        ViewTreeObserver.OnComputeInternalInsetsListener {
51    private static final String TAG = "HeadsUpNotificationView";
52    private static final boolean DEBUG = false;
53    private static final boolean SPEW = DEBUG;
54    private static final String SETTING_HEADS_UP_SNOOZE_LENGTH_MS = "heads_up_snooze_length_ms";
55
56    Rect mTmpRect = new Rect();
57    int[] mTmpTwoArray = new int[2];
58
59    private final int mTouchSensitivityDelay;
60    private final float mMaxAlpha = 1f;
61    private final ArrayMap<String, Long> mSnoozedPackages;
62    private final int mDefaultSnoozeLengthMs;
63
64    private SwipeHelper mSwipeHelper;
65    private EdgeSwipeHelper mEdgeSwipeHelper;
66
67    private PhoneStatusBar mBar;
68
69    private long mStartTouchTime;
70    private ViewGroup mContentHolder;
71    private int mSnoozeLengthMs;
72    private ContentObserver mSettingsObserver;
73
74    private NotificationData.Entry mHeadsUp;
75    private int mUser;
76
77    public HeadsUpNotificationView(Context context, AttributeSet attrs) {
78        this(context, attrs, 0);
79    }
80
81    public HeadsUpNotificationView(Context context, AttributeSet attrs, int defStyle) {
82        super(context, attrs, defStyle);
83        Resources resources = context.getResources();
84        mTouchSensitivityDelay = resources.getInteger(R.integer.heads_up_sensitivity_delay);
85        if (DEBUG) Log.v(TAG, "create() " + mTouchSensitivityDelay);
86        mSnoozedPackages = new ArrayMap<>();
87        mDefaultSnoozeLengthMs = resources.getInteger(R.integer.heads_up_default_snooze_length_ms);
88        mSnoozeLengthMs = mDefaultSnoozeLengthMs;
89    }
90
91    public void updateResources() {
92        if (mContentHolder != null) {
93            final LayoutParams lp = (LayoutParams) mContentHolder.getLayoutParams();
94            lp.width = getResources().getDimensionPixelSize(R.dimen.notification_panel_width);
95            lp.gravity = getResources().getInteger(R.integer.notification_panel_layout_gravity);
96            mContentHolder.setLayoutParams(lp);
97        }
98    }
99
100    public void setBar(PhoneStatusBar bar) {
101        mBar = bar;
102    }
103
104    public ViewGroup getHolder() {
105        return mContentHolder;
106    }
107
108    public boolean showNotification(NotificationData.Entry headsUp) {
109        if (mHeadsUp != null && headsUp != null && !mHeadsUp.key.equals(headsUp.key)) {
110            // bump any previous heads up back to the shade
111            release();
112        }
113
114        mHeadsUp = headsUp;
115        if (mContentHolder != null) {
116            mContentHolder.removeAllViews();
117        }
118
119        if (mHeadsUp != null) {
120            mHeadsUp.row.setSystemExpanded(true);
121            mHeadsUp.row.setSensitive(false);
122            mHeadsUp.row.setHeadsUp(true);
123            mHeadsUp.row.setHideSensitive(
124                    false, false /* animated */, 0 /* delay */, 0 /* duration */);
125            if (mContentHolder == null) {
126                // too soon!
127                return false;
128            }
129            mContentHolder.setX(0);
130            mContentHolder.setVisibility(View.VISIBLE);
131            mContentHolder.setAlpha(mMaxAlpha);
132            mContentHolder.addView(mHeadsUp.row);
133            sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED);
134
135            mSwipeHelper.snapChild(mContentHolder, 1f);
136            mStartTouchTime = SystemClock.elapsedRealtime() + mTouchSensitivityDelay;
137
138            mHeadsUp.setInterruption();
139
140            // 2. Animate mHeadsUpNotificationView in
141            mBar.scheduleHeadsUpOpen();
142
143            // 3. Set alarm to age the notification off
144            mBar.resetHeadsUpDecayTimer();
145        }
146        return true;
147    }
148
149    @Override
150    protected void onVisibilityChanged(View changedView, int visibility) {
151        super.onVisibilityChanged(changedView, visibility);
152        if (changedView.getVisibility() == VISIBLE) {
153            sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED);
154        }
155    }
156
157    public boolean isShowing(String key) {
158        return mHeadsUp != null && mHeadsUp.key.equals(key);
159    }
160
161    /** Discard the Heads Up notification. */
162    public void clear() {
163        mHeadsUp = null;
164        mBar.scheduleHeadsUpClose();
165    }
166
167    /** Respond to dismissal of the Heads Up window. */
168    public void dismiss() {
169        if (mHeadsUp == null) return;
170        if (mHeadsUp.notification.isClearable()) {
171            mBar.onNotificationClear(mHeadsUp.notification);
172        } else {
173            release();
174        }
175        mHeadsUp = null;
176        mBar.scheduleHeadsUpClose();
177    }
178
179    /** Push any current Heads Up notification down into the shade. */
180    public void release() {
181        if (mHeadsUp != null) {
182            mBar.displayNotificationFromHeadsUp(mHeadsUp.notification);
183        }
184        mHeadsUp = null;
185    }
186
187    public boolean isSnoozed(String packageName) {
188        final String key = snoozeKey(packageName, mUser);
189        Long snoozedUntil = mSnoozedPackages.get(key);
190        if (snoozedUntil != null) {
191            if (snoozedUntil > SystemClock.elapsedRealtime()) {
192                if (DEBUG) Log.v(TAG, key + " snoozed");
193                return true;
194            }
195            mSnoozedPackages.remove(packageName);
196        }
197        return false;
198    }
199
200    private void snooze() {
201        mSnoozedPackages.put(snoozeKey(mHeadsUp.notification.getPackageName(), mUser),
202                SystemClock.elapsedRealtime() + mSnoozeLengthMs);
203        releaseAndClose();
204    }
205
206    private static String snoozeKey(String packageName, int user) {
207        return user + "," + packageName;
208    }
209
210    public void releaseAndClose() {
211        release();
212        mBar.scheduleHeadsUpClose();
213    }
214
215    public NotificationData.Entry getEntry() {
216        return mHeadsUp;
217    }
218
219    public boolean isClearable() {
220        return mHeadsUp == null || mHeadsUp.notification.isClearable();
221    }
222
223    // ViewGroup methods
224
225    private static final ViewOutlineProvider CONTENT_HOLDER_OUTLINE_PROVIDER =
226            new ViewOutlineProvider() {
227        @Override
228        public void getOutline(View view, Outline outline) {
229            int outlineLeft = view.getPaddingLeft();
230            int outlineTop = view.getPaddingTop();
231
232            // Apply padding to shadow.
233            outline.setRect(outlineLeft, outlineTop,
234                    view.getWidth() - outlineLeft - view.getPaddingRight(),
235                    view.getHeight() - outlineTop - view.getPaddingBottom());
236        }
237    };
238
239    @Override
240    public void onAttachedToWindow() {
241        final ViewConfiguration viewConfiguration = ViewConfiguration.get(getContext());
242        float touchSlop = viewConfiguration.getScaledTouchSlop();
243        mSwipeHelper = new SwipeHelper(SwipeHelper.X, this, getContext());
244        mSwipeHelper.setMaxSwipeProgress(mMaxAlpha);
245        mEdgeSwipeHelper = new EdgeSwipeHelper(touchSlop);
246
247        int minHeight = getResources().getDimensionPixelSize(R.dimen.notification_min_height);
248        int maxHeight = getResources().getDimensionPixelSize(R.dimen.notification_max_height);
249
250        mContentHolder = (ViewGroup) findViewById(R.id.content_holder);
251        mContentHolder.setOutlineProvider(CONTENT_HOLDER_OUTLINE_PROVIDER);
252
253        mSnoozeLengthMs = Settings.Global.getInt(mContext.getContentResolver(),
254                SETTING_HEADS_UP_SNOOZE_LENGTH_MS, mDefaultSnoozeLengthMs);
255        mSettingsObserver = new ContentObserver(getHandler()) {
256            @Override
257            public void onChange(boolean selfChange) {
258                final int packageSnoozeLengthMs = Settings.Global.getInt(
259                        mContext.getContentResolver(), SETTING_HEADS_UP_SNOOZE_LENGTH_MS, -1);
260                if (packageSnoozeLengthMs > -1 && packageSnoozeLengthMs != mSnoozeLengthMs) {
261                    mSnoozeLengthMs = packageSnoozeLengthMs;
262                    if (DEBUG) Log.v(TAG, "mSnoozeLengthMs = " + mSnoozeLengthMs);
263                }
264            }
265        };
266        mContext.getContentResolver().registerContentObserver(
267                Settings.Global.getUriFor(SETTING_HEADS_UP_SNOOZE_LENGTH_MS), false,
268                mSettingsObserver);
269        if (DEBUG) Log.v(TAG, "mSnoozeLengthMs = " + mSnoozeLengthMs);
270
271        if (mHeadsUp != null) {
272            // whoops, we're on already!
273            showNotification(mHeadsUp);
274        }
275
276        getViewTreeObserver().addOnComputeInternalInsetsListener(this);
277    }
278
279    @Override
280    protected void onDetachedFromWindow() {
281        mContext.getContentResolver().unregisterContentObserver(mSettingsObserver);
282    }
283
284    @Override
285    public boolean onInterceptTouchEvent(MotionEvent ev) {
286        if (DEBUG) Log.v(TAG, "onInterceptTouchEvent()");
287        if (SystemClock.elapsedRealtime() < mStartTouchTime) {
288            return true;
289        }
290        return mEdgeSwipeHelper.onInterceptTouchEvent(ev)
291                || mSwipeHelper.onInterceptTouchEvent(ev)
292                || super.onInterceptTouchEvent(ev);
293    }
294
295    // View methods
296
297    @Override
298    public void onDraw(android.graphics.Canvas c) {
299        super.onDraw(c);
300        if (DEBUG) {
301            //Log.d(TAG, "onDraw: canvas height: " + c.getHeight() + "px; measured height: "
302            //        + getMeasuredHeight() + "px");
303            c.save();
304            c.clipRect(6, 6, c.getWidth() - 6, getMeasuredHeight() - 6,
305                    android.graphics.Region.Op.DIFFERENCE);
306            c.drawColor(0xFFcc00cc);
307            c.restore();
308        }
309    }
310
311    @Override
312    public boolean onTouchEvent(MotionEvent ev) {
313        if (SystemClock.elapsedRealtime() < mStartTouchTime) {
314            return false;
315        }
316        mBar.resetHeadsUpDecayTimer();
317        return mEdgeSwipeHelper.onTouchEvent(ev)
318                || mSwipeHelper.onTouchEvent(ev)
319                || super.onTouchEvent(ev);
320    }
321
322    @Override
323    protected void onConfigurationChanged(Configuration newConfig) {
324        super.onConfigurationChanged(newConfig);
325        float densityScale = getResources().getDisplayMetrics().density;
326        mSwipeHelper.setDensityScale(densityScale);
327        float pagingTouchSlop = ViewConfiguration.get(getContext()).getScaledPagingTouchSlop();
328        mSwipeHelper.setPagingTouchSlop(pagingTouchSlop);
329    }
330
331    // ExpandHelper.Callback methods
332
333    @Override
334    public ExpandableView getChildAtRawPosition(float x, float y) {
335        return getChildAtPosition(x, y);
336    }
337
338    @Override
339    public ExpandableView getChildAtPosition(float x, float y) {
340        return mHeadsUp == null ? null : mHeadsUp.row;
341    }
342
343    @Override
344    public boolean canChildBeExpanded(View v) {
345        return mHeadsUp != null && mHeadsUp.row == v && mHeadsUp.row.isExpandable();
346    }
347
348    @Override
349    public void setUserExpandedChild(View v, boolean userExpanded) {
350        if (mHeadsUp != null && mHeadsUp.row == v) {
351            mHeadsUp.row.setUserExpanded(userExpanded);
352        }
353    }
354
355    @Override
356    public void setUserLockedChild(View v, boolean userLocked) {
357        if (mHeadsUp != null && mHeadsUp.row == v) {
358            mHeadsUp.row.setUserLocked(userLocked);
359        }
360    }
361
362    @Override
363    public void expansionStateChanged(boolean isExpanding) {
364
365    }
366
367    // SwipeHelper.Callback methods
368
369    @Override
370    public boolean canChildBeDismissed(View v) {
371        return true;
372    }
373
374    @Override
375    public boolean isAntiFalsingNeeded() {
376        return false;
377    }
378
379    @Override
380    public float getFalsingThresholdFactor() {
381        return 1.0f;
382    }
383
384    @Override
385    public void onChildDismissed(View v) {
386        Log.v(TAG, "User swiped heads up to dismiss");
387        mBar.onHeadsUpDismissed();
388    }
389
390    @Override
391    public void onBeginDrag(View v) {
392    }
393
394    @Override
395    public void onDragCancelled(View v) {
396        mContentHolder.setAlpha(mMaxAlpha); // sometimes this isn't quite reset
397    }
398
399    @Override
400    public void onChildSnappedBack(View animView) {
401    }
402
403    @Override
404    public boolean updateSwipeProgress(View animView, boolean dismissable, float swipeProgress) {
405        getBackground().setAlpha((int) (255 * swipeProgress));
406        return false;
407    }
408
409    @Override
410    public View getChildAtPosition(MotionEvent ev) {
411        return mContentHolder;
412    }
413
414    @Override
415    public View getChildContentView(View v) {
416        return mContentHolder;
417    }
418
419    @Override
420    public void onComputeInternalInsets(ViewTreeObserver.InternalInsetsInfo info) {
421        mContentHolder.getLocationOnScreen(mTmpTwoArray);
422
423        info.setTouchableInsets(ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION);
424        info.touchableRegion.set(mTmpTwoArray[0], mTmpTwoArray[1],
425                mTmpTwoArray[0] + mContentHolder.getWidth(),
426                mTmpTwoArray[1] + mContentHolder.getHeight());
427    }
428
429    public void escalate() {
430        mBar.scheduleHeadsUpEscalation();
431    }
432
433    public String getKey() {
434        return mHeadsUp == null ? null : mHeadsUp.notification.getKey();
435    }
436
437    public void setUser(int user) {
438        mUser = user;
439    }
440
441    private class EdgeSwipeHelper implements Gefingerpoken {
442        private static final boolean DEBUG_EDGE_SWIPE = false;
443        private final float mTouchSlop;
444        private boolean mConsuming;
445        private float mFirstY;
446        private float mFirstX;
447
448        public EdgeSwipeHelper(float touchSlop) {
449            mTouchSlop = touchSlop;
450        }
451
452        @Override
453        public boolean onInterceptTouchEvent(MotionEvent ev) {
454            switch (ev.getActionMasked()) {
455                case MotionEvent.ACTION_DOWN:
456                    if (DEBUG_EDGE_SWIPE) Log.d(TAG, "action down " + ev.getY());
457                    mFirstX = ev.getX();
458                    mFirstY = ev.getY();
459                    mConsuming = false;
460                    break;
461
462                case MotionEvent.ACTION_MOVE:
463                    if (DEBUG_EDGE_SWIPE) Log.d(TAG, "action move " + ev.getY());
464                    final float dY = ev.getY() - mFirstY;
465                    final float daX = Math.abs(ev.getX() - mFirstX);
466                    final float daY = Math.abs(dY);
467                    if (!mConsuming && daX < daY && daY > mTouchSlop) {
468                        snooze();
469                        if (dY > 0) {
470                            if (DEBUG_EDGE_SWIPE) Log.d(TAG, "found an open");
471                            mBar.animateExpandNotificationsPanel();
472                        }
473                        mConsuming = true;
474                    }
475                    break;
476
477                case MotionEvent.ACTION_UP:
478                case MotionEvent.ACTION_CANCEL:
479                    if (DEBUG_EDGE_SWIPE) Log.d(TAG, "action done" );
480                    mConsuming = false;
481                    break;
482            }
483            return mConsuming;
484        }
485
486        @Override
487        public boolean onTouchEvent(MotionEvent ev) {
488            return mConsuming;
489        }
490    }
491}
492