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1/*
2 * Copyright (C) 2012 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.phone;
18
19import android.annotation.ColorInt;
20import android.annotation.DrawableRes;
21import android.annotation.LayoutRes;
22import android.app.StatusBarManager;
23import android.content.Context;
24import android.content.res.Configuration;
25import android.content.res.TypedArray;
26import android.graphics.Canvas;
27import android.graphics.Paint;
28import android.graphics.PorterDuff;
29import android.graphics.PorterDuffXfermode;
30import android.graphics.Rect;
31import android.graphics.drawable.Drawable;
32import android.media.session.MediaSessionLegacyHelper;
33import android.net.Uri;
34import android.os.Bundle;
35import android.os.IBinder;
36import android.util.AttributeSet;
37import android.view.ActionMode;
38import android.view.InputQueue;
39import android.view.KeyEvent;
40import android.view.LayoutInflater;
41import android.view.Menu;
42import android.view.MenuItem;
43import android.view.MotionEvent;
44import android.view.SurfaceHolder;
45import android.view.View;
46import android.view.ViewGroup;
47import android.view.ViewTreeObserver;
48import android.view.Window;
49import android.view.WindowManager;
50import android.view.WindowManagerGlobal;
51import android.widget.FrameLayout;
52
53import com.android.internal.view.FloatingActionMode;
54import com.android.internal.widget.FloatingToolbar;
55import com.android.systemui.R;
56import com.android.systemui.classifier.FalsingManager;
57import com.android.systemui.statusbar.BaseStatusBar;
58import com.android.systemui.statusbar.DragDownHelper;
59import com.android.systemui.statusbar.StatusBarState;
60import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
61
62
63public class StatusBarWindowView extends FrameLayout {
64    public static final String TAG = "StatusBarWindowView";
65    public static final boolean DEBUG = BaseStatusBar.DEBUG;
66
67    private DragDownHelper mDragDownHelper;
68    private NotificationStackScrollLayout mStackScrollLayout;
69    private NotificationPanelView mNotificationPanel;
70    private View mBrightnessMirror;
71
72    private int mRightInset = 0;
73
74    private PhoneStatusBar mService;
75    private final Paint mTransparentSrcPaint = new Paint();
76    private FalsingManager mFalsingManager;
77
78    // Implements the floating action mode for TextView's Cut/Copy/Past menu. Normally provided by
79    // DecorView, but since this is a special window we have to roll our own.
80    private View mFloatingActionModeOriginatingView;
81    private ActionMode mFloatingActionMode;
82    private FloatingToolbar mFloatingToolbar;
83    private ViewTreeObserver.OnPreDrawListener mFloatingToolbarPreDrawListener;
84
85    public StatusBarWindowView(Context context, AttributeSet attrs) {
86        super(context, attrs);
87        setMotionEventSplittingEnabled(false);
88        mTransparentSrcPaint.setColor(0);
89        mTransparentSrcPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
90        mFalsingManager = FalsingManager.getInstance(context);
91    }
92
93    @Override
94    protected boolean fitSystemWindows(Rect insets) {
95        if (getFitsSystemWindows()) {
96            boolean paddingChanged = insets.left != getPaddingLeft()
97                    || insets.top != getPaddingTop()
98                    || insets.bottom != getPaddingBottom();
99
100            // Super-special right inset handling, because scrims and backdrop need to ignore it.
101            if (insets.right != mRightInset) {
102                mRightInset = insets.right;
103                applyMargins();
104            }
105            // Drop top inset, apply left inset and pass through bottom inset.
106            if (paddingChanged) {
107                setPadding(insets.left, 0, 0, 0);
108            }
109            insets.left = 0;
110            insets.top = 0;
111            insets.right = 0;
112        } else {
113            if (mRightInset != 0) {
114                mRightInset = 0;
115                applyMargins();
116            }
117            boolean changed = getPaddingLeft() != 0
118                    || getPaddingRight() != 0
119                    || getPaddingTop() != 0
120                    || getPaddingBottom() != 0;
121            if (changed) {
122                setPadding(0, 0, 0, 0);
123            }
124            insets.top = 0;
125        }
126        return false;
127    }
128
129    private void applyMargins() {
130        final int N = getChildCount();
131        for (int i = 0; i < N; i++) {
132            View child = getChildAt(i);
133            if (child.getLayoutParams() instanceof LayoutParams) {
134                LayoutParams lp = (LayoutParams) child.getLayoutParams();
135                if (!lp.ignoreRightInset && lp.rightMargin != mRightInset) {
136                    lp.rightMargin = mRightInset;
137                    child.requestLayout();
138                }
139            }
140        }
141    }
142
143    @Override
144    public FrameLayout.LayoutParams generateLayoutParams(AttributeSet attrs) {
145        return new LayoutParams(getContext(), attrs);
146    }
147
148    @Override
149    protected FrameLayout.LayoutParams generateDefaultLayoutParams() {
150        return new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
151    }
152
153    @Override
154    protected void onFinishInflate() {
155        super.onFinishInflate();
156        mStackScrollLayout = (NotificationStackScrollLayout) findViewById(
157                R.id.notification_stack_scroller);
158        mNotificationPanel = (NotificationPanelView) findViewById(R.id.notification_panel);
159        mBrightnessMirror = findViewById(R.id.brightness_mirror);
160    }
161
162    public void setService(PhoneStatusBar service) {
163        mService = service;
164        mDragDownHelper = new DragDownHelper(getContext(), this, mStackScrollLayout, mService);
165    }
166
167    @Override
168    protected void onAttachedToWindow () {
169        super.onAttachedToWindow();
170
171        // We need to ensure that our window doesn't suffer from overdraw which would normally
172        // occur if our window is translucent. Since we are drawing the whole window anyway with
173        // the scrim, we don't need the window to be cleared in the beginning.
174        if (mService.isScrimSrcModeEnabled()) {
175            IBinder windowToken = getWindowToken();
176            WindowManager.LayoutParams lp = (WindowManager.LayoutParams) getLayoutParams();
177            lp.token = windowToken;
178            setLayoutParams(lp);
179            WindowManagerGlobal.getInstance().changeCanvasOpacity(windowToken, true);
180            setWillNotDraw(false);
181        } else {
182            setWillNotDraw(!DEBUG);
183        }
184    }
185
186    @Override
187    public boolean dispatchKeyEvent(KeyEvent event) {
188        boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
189        switch (event.getKeyCode()) {
190            case KeyEvent.KEYCODE_BACK:
191                if (!down) {
192                    mService.onBackPressed();
193                }
194                return true;
195            case KeyEvent.KEYCODE_MENU:
196                if (!down) {
197                    return mService.onMenuPressed();
198                }
199            case KeyEvent.KEYCODE_SPACE:
200                if (!down) {
201                    return mService.onSpacePressed();
202                }
203                break;
204            case KeyEvent.KEYCODE_VOLUME_DOWN:
205            case KeyEvent.KEYCODE_VOLUME_UP:
206                if (mService.isDozing()) {
207                    MediaSessionLegacyHelper.getHelper(mContext).sendVolumeKeyEvent(event, true);
208                    return true;
209                }
210                break;
211        }
212        if (mService.interceptMediaKey(event)) {
213            return true;
214        }
215        return super.dispatchKeyEvent(event);
216    }
217
218    @Override
219    public boolean dispatchTouchEvent(MotionEvent ev) {
220        mFalsingManager.onTouchEvent(ev, getWidth(), getHeight());
221        if (mBrightnessMirror != null && mBrightnessMirror.getVisibility() == VISIBLE) {
222            // Disallow new pointers while the brightness mirror is visible. This is so that you
223            // can't touch anything other than the brightness slider while the mirror is showing
224            // and the rest of the panel is transparent.
225            if (ev.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN) {
226                return false;
227            }
228        }
229        if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
230            mStackScrollLayout.closeControlsIfOutsideTouch(ev);
231        }
232
233        return super.dispatchTouchEvent(ev);
234    }
235
236    @Override
237    public boolean onInterceptTouchEvent(MotionEvent ev) {
238        boolean intercept = false;
239        if (mNotificationPanel.isFullyExpanded()
240                && mStackScrollLayout.getVisibility() == View.VISIBLE
241                && mService.getBarState() == StatusBarState.KEYGUARD
242                && !mService.isBouncerShowing()) {
243            intercept = mDragDownHelper.onInterceptTouchEvent(ev);
244            // wake up on a touch down event, if dozing
245            if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
246                mService.wakeUpIfDozing(ev.getEventTime(), ev);
247            }
248        }
249        if (!intercept) {
250            super.onInterceptTouchEvent(ev);
251        }
252        if (intercept) {
253            MotionEvent cancellation = MotionEvent.obtain(ev);
254            cancellation.setAction(MotionEvent.ACTION_CANCEL);
255            mStackScrollLayout.onInterceptTouchEvent(cancellation);
256            mNotificationPanel.onInterceptTouchEvent(cancellation);
257            cancellation.recycle();
258        }
259        return intercept;
260    }
261
262    @Override
263    public boolean onTouchEvent(MotionEvent ev) {
264        boolean handled = false;
265        if (mService.getBarState() == StatusBarState.KEYGUARD) {
266            handled = mDragDownHelper.onTouchEvent(ev);
267        }
268        if (!handled) {
269            handled = super.onTouchEvent(ev);
270        }
271        final int action = ev.getAction();
272        if (!handled && (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL)) {
273            mService.setInteracting(StatusBarManager.WINDOW_STATUS_BAR, false);
274        }
275        return handled;
276    }
277
278    @Override
279    public void onDraw(Canvas canvas) {
280        super.onDraw(canvas);
281        if (mService.isScrimSrcModeEnabled()) {
282            // We need to ensure that our window is always drawn fully even when we have paddings,
283            // since we simulate it to be opaque.
284            int paddedBottom = getHeight() - getPaddingBottom();
285            int paddedRight = getWidth() - getPaddingRight();
286            if (getPaddingTop() != 0) {
287                canvas.drawRect(0, 0, getWidth(), getPaddingTop(), mTransparentSrcPaint);
288            }
289            if (getPaddingBottom() != 0) {
290                canvas.drawRect(0, paddedBottom, getWidth(), getHeight(), mTransparentSrcPaint);
291            }
292            if (getPaddingLeft() != 0) {
293                canvas.drawRect(0, getPaddingTop(), getPaddingLeft(), paddedBottom,
294                        mTransparentSrcPaint);
295            }
296            if (getPaddingRight() != 0) {
297                canvas.drawRect(paddedRight, getPaddingTop(), getWidth(), paddedBottom,
298                        mTransparentSrcPaint);
299            }
300        }
301        if (DEBUG) {
302            Paint pt = new Paint();
303            pt.setColor(0x80FFFF00);
304            pt.setStrokeWidth(12.0f);
305            pt.setStyle(Paint.Style.STROKE);
306            canvas.drawRect(0, 0, canvas.getWidth(), canvas.getHeight(), pt);
307        }
308    }
309
310    public void cancelExpandHelper() {
311        if (mStackScrollLayout != null) {
312            mStackScrollLayout.cancelExpandHelper();
313        }
314    }
315
316    public class LayoutParams extends FrameLayout.LayoutParams {
317
318        public boolean ignoreRightInset;
319
320        public LayoutParams(int width, int height) {
321            super(width, height);
322        }
323
324        public LayoutParams(Context c, AttributeSet attrs) {
325            super(c, attrs);
326
327            TypedArray a = c.obtainStyledAttributes(attrs, R.styleable.StatusBarWindowView_Layout);
328            ignoreRightInset = a.getBoolean(
329                    R.styleable.StatusBarWindowView_Layout_ignoreRightInset, false);
330            a.recycle();
331        }
332    }
333
334    @Override
335    public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback,
336            int type) {
337        if (type == ActionMode.TYPE_FLOATING) {
338            return startActionMode(originalView, callback, type);
339        }
340        return super.startActionModeForChild(originalView, callback, type);
341    }
342
343    private ActionMode createFloatingActionMode(
344            View originatingView, ActionMode.Callback2 callback) {
345        if (mFloatingActionMode != null) {
346            mFloatingActionMode.finish();
347        }
348        cleanupFloatingActionModeViews();
349        final FloatingActionMode mode =
350                new FloatingActionMode(mContext, callback, originatingView);
351        mFloatingActionModeOriginatingView = originatingView;
352        mFloatingToolbarPreDrawListener =
353                new ViewTreeObserver.OnPreDrawListener() {
354                    @Override
355                    public boolean onPreDraw() {
356                        mode.updateViewLocationInWindow();
357                        return true;
358                    }
359                };
360        return mode;
361    }
362
363    private void setHandledFloatingActionMode(ActionMode mode) {
364        mFloatingActionMode = mode;
365        mFloatingToolbar = new FloatingToolbar(mContext, mFakeWindow);
366        ((FloatingActionMode) mFloatingActionMode).setFloatingToolbar(mFloatingToolbar);
367        mFloatingActionMode.invalidate();  // Will show the floating toolbar if necessary.
368        mFloatingActionModeOriginatingView.getViewTreeObserver()
369                .addOnPreDrawListener(mFloatingToolbarPreDrawListener);
370    }
371
372    private void cleanupFloatingActionModeViews() {
373        if (mFloatingToolbar != null) {
374            mFloatingToolbar.dismiss();
375            mFloatingToolbar = null;
376        }
377        if (mFloatingActionModeOriginatingView != null) {
378            if (mFloatingToolbarPreDrawListener != null) {
379                mFloatingActionModeOriginatingView.getViewTreeObserver()
380                        .removeOnPreDrawListener(mFloatingToolbarPreDrawListener);
381                mFloatingToolbarPreDrawListener = null;
382            }
383            mFloatingActionModeOriginatingView = null;
384        }
385    }
386
387    private ActionMode startActionMode(
388            View originatingView, ActionMode.Callback callback, int type) {
389        ActionMode.Callback2 wrappedCallback = new ActionModeCallback2Wrapper(callback);
390        ActionMode mode = createFloatingActionMode(originatingView, wrappedCallback);
391        if (mode != null && wrappedCallback.onCreateActionMode(mode, mode.getMenu())) {
392            setHandledFloatingActionMode(mode);
393        } else {
394            mode = null;
395        }
396        return mode;
397    }
398
399    private class ActionModeCallback2Wrapper extends ActionMode.Callback2 {
400        private final ActionMode.Callback mWrapped;
401
402        public ActionModeCallback2Wrapper(ActionMode.Callback wrapped) {
403            mWrapped = wrapped;
404        }
405
406        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
407            return mWrapped.onCreateActionMode(mode, menu);
408        }
409
410        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
411            requestFitSystemWindows();
412            return mWrapped.onPrepareActionMode(mode, menu);
413        }
414
415        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
416            return mWrapped.onActionItemClicked(mode, item);
417        }
418
419        public void onDestroyActionMode(ActionMode mode) {
420            mWrapped.onDestroyActionMode(mode);
421            if (mode == mFloatingActionMode) {
422                cleanupFloatingActionModeViews();
423                mFloatingActionMode = null;
424            }
425            requestFitSystemWindows();
426        }
427
428        @Override
429        public void onGetContentRect(ActionMode mode, View view, Rect outRect) {
430            if (mWrapped instanceof ActionMode.Callback2) {
431                ((ActionMode.Callback2) mWrapped).onGetContentRect(mode, view, outRect);
432            } else {
433                super.onGetContentRect(mode, view, outRect);
434            }
435        }
436    }
437
438    /**
439     * Minimal window to satisfy FloatingToolbar.
440     */
441    private Window mFakeWindow = new Window(mContext) {
442        @Override
443        public void takeSurface(SurfaceHolder.Callback2 callback) {
444        }
445
446        @Override
447        public void takeInputQueue(InputQueue.Callback callback) {
448        }
449
450        @Override
451        public boolean isFloating() {
452            return false;
453        }
454
455        @Override
456        public void alwaysReadCloseOnTouchAttr() {
457        }
458
459        @Override
460        public void setContentView(@LayoutRes int layoutResID) {
461        }
462
463        @Override
464        public void setContentView(View view) {
465        }
466
467        @Override
468        public void setContentView(View view, ViewGroup.LayoutParams params) {
469        }
470
471        @Override
472        public void addContentView(View view, ViewGroup.LayoutParams params) {
473        }
474
475        @Override
476        public void clearContentView() {
477        }
478
479        @Override
480        public View getCurrentFocus() {
481            return null;
482        }
483
484        @Override
485        public LayoutInflater getLayoutInflater() {
486            return null;
487        }
488
489        @Override
490        public void setTitle(CharSequence title) {
491        }
492
493        @Override
494        public void setTitleColor(@ColorInt int textColor) {
495        }
496
497        @Override
498        public void openPanel(int featureId, KeyEvent event) {
499        }
500
501        @Override
502        public void closePanel(int featureId) {
503        }
504
505        @Override
506        public void togglePanel(int featureId, KeyEvent event) {
507        }
508
509        @Override
510        public void invalidatePanelMenu(int featureId) {
511        }
512
513        @Override
514        public boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags) {
515            return false;
516        }
517
518        @Override
519        public boolean performPanelIdentifierAction(int featureId, int id, int flags) {
520            return false;
521        }
522
523        @Override
524        public void closeAllPanels() {
525        }
526
527        @Override
528        public boolean performContextMenuIdentifierAction(int id, int flags) {
529            return false;
530        }
531
532        @Override
533        public void onConfigurationChanged(Configuration newConfig) {
534        }
535
536        @Override
537        public void setBackgroundDrawable(Drawable drawable) {
538        }
539
540        @Override
541        public void setFeatureDrawableResource(int featureId, @DrawableRes int resId) {
542        }
543
544        @Override
545        public void setFeatureDrawableUri(int featureId, Uri uri) {
546        }
547
548        @Override
549        public void setFeatureDrawable(int featureId, Drawable drawable) {
550        }
551
552        @Override
553        public void setFeatureDrawableAlpha(int featureId, int alpha) {
554        }
555
556        @Override
557        public void setFeatureInt(int featureId, int value) {
558        }
559
560        @Override
561        public void takeKeyEvents(boolean get) {
562        }
563
564        @Override
565        public boolean superDispatchKeyEvent(KeyEvent event) {
566            return false;
567        }
568
569        @Override
570        public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
571            return false;
572        }
573
574        @Override
575        public boolean superDispatchTouchEvent(MotionEvent event) {
576            return false;
577        }
578
579        @Override
580        public boolean superDispatchTrackballEvent(MotionEvent event) {
581            return false;
582        }
583
584        @Override
585        public boolean superDispatchGenericMotionEvent(MotionEvent event) {
586            return false;
587        }
588
589        @Override
590        public View getDecorView() {
591            return StatusBarWindowView.this;
592        }
593
594        @Override
595        public View peekDecorView() {
596            return null;
597        }
598
599        @Override
600        public Bundle saveHierarchyState() {
601            return null;
602        }
603
604        @Override
605        public void restoreHierarchyState(Bundle savedInstanceState) {
606        }
607
608        @Override
609        protected void onActive() {
610        }
611
612        @Override
613        public void setChildDrawable(int featureId, Drawable drawable) {
614        }
615
616        @Override
617        public void setChildInt(int featureId, int value) {
618        }
619
620        @Override
621        public boolean isShortcutKey(int keyCode, KeyEvent event) {
622            return false;
623        }
624
625        @Override
626        public void setVolumeControlStream(int streamType) {
627        }
628
629        @Override
630        public int getVolumeControlStream() {
631            return 0;
632        }
633
634        @Override
635        public int getStatusBarColor() {
636            return 0;
637        }
638
639        @Override
640        public void setStatusBarColor(@ColorInt int color) {
641        }
642
643        @Override
644        public int getNavigationBarColor() {
645            return 0;
646        }
647
648        @Override
649        public void setNavigationBarColor(@ColorInt int color) {
650        }
651
652        @Override
653        public void setDecorCaptionShade(int decorCaptionShade) {
654        }
655
656        @Override
657        public void setResizingCaptionDrawable(Drawable drawable) {
658        }
659
660        @Override
661        public void onMultiWindowModeChanged() {
662        }
663
664        @Override
665        public void reportActivityRelaunched() {
666        }
667    };
668
669}
670
671