StatusBarWindowView.java revision 8c8bcc160aba9a5e93c8df2a99a39a856fafffab 
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.util.AttributeSet;
24import android.view.KeyEvent;
25import android.view.MotionEvent;
26import android.view.View;
27import android.view.ViewRootImpl;
28import android.widget.FrameLayout;
29
30import com.android.systemui.ExpandHelper;
31import com.android.systemui.R;
32import com.android.systemui.statusbar.BaseStatusBar;
33import com.android.systemui.statusbar.policy.ScrollAdapter;
34import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
35
36
37public class StatusBarWindowView extends FrameLayout
38{
39    public static final String TAG = "StatusBarWindowView";
40    public static final boolean DEBUG = BaseStatusBar.DEBUG;
41
42    private ExpandHelper mExpandHelper;
43    private NotificationStackScrollLayout mStackScrollLayout;
44    private NotificationPanelView mNotificationPanel;
45
46    PhoneStatusBar mService;
47
48    public StatusBarWindowView(Context context, AttributeSet attrs) {
49        super(context, attrs);
50        setMotionEventSplittingEnabled(false);
51        setWillNotDraw(!DEBUG);
52    }
53
54    @Override
55    protected void onAttachedToWindow () {
56        super.onAttachedToWindow();
57
58        mStackScrollLayout = (NotificationStackScrollLayout) findViewById(
59                R.id.notification_stack_scroller);
60        mNotificationPanel = (NotificationPanelView) findViewById(R.id.notification_panel);
61        int minHeight = getResources().getDimensionPixelSize(R.dimen.notification_row_min_height);
62        int maxHeight = getResources().getDimensionPixelSize(R.dimen.notification_row_max_height);
63        mExpandHelper = new ExpandHelper(getContext(), mStackScrollLayout,
64                minHeight, maxHeight);
65        mExpandHelper.setEventSource(this);
66        mExpandHelper.setScrollAdapter(mStackScrollLayout);
67
68        // We really need to be able to animate while window animations are going on
69        // so that activities may be started asynchronously from panel animations
70        final ViewRootImpl root = getViewRootImpl();
71        if (root != null) {
72            root.setDrawDuringWindowsAnimating(true);
73        }
74    }
75
76    @Override
77    public boolean dispatchKeyEvent(KeyEvent event) {
78        boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
79        switch (event.getKeyCode()) {
80            case KeyEvent.KEYCODE_BACK:
81                if (!down) {
82                    mService.onBackPressed();
83                }
84                return true;
85            case KeyEvent.KEYCODE_MENU:
86                if (!down) {
87                    return mService.onMenuPressed();
88                }
89        }
90        return super.dispatchKeyEvent(event);
91    }
92
93    @Override
94    public boolean onInterceptTouchEvent(MotionEvent ev) {
95        boolean intercept = false;
96        if (mNotificationPanel.isFullyExpanded()
97                && mStackScrollLayout.getVisibility() == View.VISIBLE
98                && !mService.isOnKeyguard()) {
99            intercept = mExpandHelper.onInterceptTouchEvent(ev);
100        }
101        if (!intercept) {
102            super.onInterceptTouchEvent(ev);
103        }
104        if (intercept) {
105            MotionEvent cancellation = MotionEvent.obtain(ev);
106            cancellation.setAction(MotionEvent.ACTION_CANCEL);
107            mStackScrollLayout.onInterceptTouchEvent(cancellation);
108            cancellation.recycle();
109        }
110        return intercept;
111    }
112
113    @Override
114    public boolean onTouchEvent(MotionEvent ev) {
115        boolean handled = false;
116        if (mNotificationPanel.isFullyExpanded()) {
117            handled = mExpandHelper.onTouchEvent(ev);
118        }
119        if (!handled) {
120            handled = super.onTouchEvent(ev);
121        }
122        final int action = ev.getAction();
123        if (!handled && (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL)) {
124            mService.setInteracting(StatusBarManager.WINDOW_STATUS_BAR, false);
125        }
126        return handled;
127    }
128
129    @Override
130    public void onDraw(Canvas canvas) {
131        super.onDraw(canvas);
132        if (DEBUG) {
133            Paint pt = new Paint();
134            pt.setColor(0x80FFFF00);
135            pt.setStrokeWidth(12.0f);
136            pt.setStyle(Paint.Style.STROKE);
137            canvas.drawRect(0, 0, canvas.getWidth(), canvas.getHeight(), pt);
138        }
139    }
140
141    public void cancelExpandHelper() {
142        if (mExpandHelper != null) {
143            mExpandHelper.cancel();
144        }
145    }
146}
147
148