StatusBarWindowView.java revision 4222d9a7fb87d73e1443ec1a2de9782b05741af6 
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.app.StatusBarManager;
20import android.content.Context;
21import android.graphics.Canvas;
22import android.graphics.Paint;
23import android.graphics.Rect;
24import android.util.AttributeSet;
25import android.view.KeyEvent;
26import android.view.MotionEvent;
27import android.view.View;
28import android.view.ViewRootImpl;
29import android.widget.FrameLayout;
30
31import com.android.systemui.ExpandHelper;
32import com.android.systemui.R;
33import com.android.systemui.statusbar.BaseStatusBar;
34import com.android.systemui.statusbar.DragDownHelper;
35import com.android.systemui.statusbar.StatusBarState;
36import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
37
38
39public class StatusBarWindowView extends FrameLayout {
40    public static final String TAG = "StatusBarWindowView";
41    public static final boolean DEBUG = BaseStatusBar.DEBUG;
42
43    private ExpandHelper mExpandHelper;
44    private DragDownHelper mDragDownHelper;
45    private NotificationStackScrollLayout mStackScrollLayout;
46    private NotificationPanelView mNotificationPanel;
47
48    PhoneStatusBar mService;
49
50    public StatusBarWindowView(Context context, AttributeSet attrs) {
51        super(context, attrs);
52        setMotionEventSplittingEnabled(false);
53        setWillNotDraw(!DEBUG);
54    }
55
56    @Override
57    protected boolean fitSystemWindows(Rect insets) {
58        if (getFitsSystemWindows()) {
59            setPadding(insets.left, insets.top, insets.right, insets.bottom);
60        } else {
61            setPadding(0, 0, 0, 0);
62        }
63        return true;
64    }
65
66    @Override
67    protected void onAttachedToWindow () {
68        super.onAttachedToWindow();
69
70        mStackScrollLayout = (NotificationStackScrollLayout) findViewById(
71                R.id.notification_stack_scroller);
72        mNotificationPanel = (NotificationPanelView) findViewById(R.id.notification_panel);
73        int minHeight = getResources().getDimensionPixelSize(R.dimen.notification_min_height);
74        int maxHeight = getResources().getDimensionPixelSize(R.dimen.notification_max_height);
75        mExpandHelper = new ExpandHelper(getContext(), mStackScrollLayout,
76                minHeight, maxHeight);
77        mExpandHelper.setEventSource(this);
78        mExpandHelper.setScrollAdapter(mStackScrollLayout);
79        mDragDownHelper = new DragDownHelper(getContext(), this, mStackScrollLayout, mService);
80
81        // We really need to be able to animate while window animations are going on
82        // so that activities may be started asynchronously from panel animations
83        final ViewRootImpl root = getViewRootImpl();
84        if (root != null) {
85            root.setDrawDuringWindowsAnimating(true);
86        }
87    }
88
89    @Override
90    public boolean dispatchKeyEvent(KeyEvent event) {
91        boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
92        switch (event.getKeyCode()) {
93            case KeyEvent.KEYCODE_BACK:
94                if (!down) {
95                    mService.onBackPressed();
96                }
97                return true;
98            case KeyEvent.KEYCODE_MENU:
99                if (!down) {
100                    return mService.onMenuPressed();
101                }
102        }
103        return super.dispatchKeyEvent(event);
104    }
105
106    @Override
107    public boolean onInterceptTouchEvent(MotionEvent ev) {
108        boolean intercept = false;
109        if (mNotificationPanel.isFullyExpanded()
110                && mStackScrollLayout.getVisibility() == View.VISIBLE
111                && mService.getBarState() != StatusBarState.KEYGUARD) {
112            intercept = mExpandHelper.onInterceptTouchEvent(ev);
113        } else if (mNotificationPanel.isFullyExpanded()
114                && mStackScrollLayout.getVisibility() == View.VISIBLE
115                && mService.getBarState() == StatusBarState.KEYGUARD
116                && !mService.isBouncerShowing()) {
117            intercept = mDragDownHelper.onInterceptTouchEvent(ev);
118        }
119        if (!intercept) {
120            super.onInterceptTouchEvent(ev);
121        }
122        if (intercept) {
123            MotionEvent cancellation = MotionEvent.obtain(ev);
124            cancellation.setAction(MotionEvent.ACTION_CANCEL);
125            mStackScrollLayout.onInterceptTouchEvent(cancellation);
126            cancellation.recycle();
127        }
128        return intercept;
129    }
130
131    @Override
132    public boolean onTouchEvent(MotionEvent ev) {
133        boolean handled = false;
134        if (mNotificationPanel.isFullyExpanded()
135                && mService.getBarState() != StatusBarState.KEYGUARD) {
136            handled = mExpandHelper.onTouchEvent(ev);
137        } else if (mService.getBarState() == StatusBarState.KEYGUARD) {
138            handled = mDragDownHelper.onTouchEvent(ev);
139        }
140        if (!handled) {
141            handled = super.onTouchEvent(ev);
142        }
143        final int action = ev.getAction();
144        if (!handled && (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL)) {
145            mService.setInteracting(StatusBarManager.WINDOW_STATUS_BAR, false);
146        }
147        return handled;
148    }
149
150    @Override
151    public void onDraw(Canvas canvas) {
152        super.onDraw(canvas);
153        if (DEBUG) {
154            Paint pt = new Paint();
155            pt.setColor(0x80FFFF00);
156            pt.setStrokeWidth(12.0f);
157            pt.setStyle(Paint.Style.STROKE);
158            canvas.drawRect(0, 0, canvas.getWidth(), canvas.getHeight(), pt);
159        }
160    }
161
162    public void cancelExpandHelper() {
163        if (mExpandHelper != null) {
164            mExpandHelper.cancel();
165        }
166    }
167}
168
169