StatusBarWindowView.java revision a4b70aff3419b61d2395589b393251da9ddcba3f 
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.content.Context;
20import android.graphics.Canvas;
21import android.graphics.Paint;
22import android.util.AttributeSet;
23import android.view.KeyEvent;
24import android.view.MotionEvent;
25import android.view.View;
26import android.view.ViewRootImpl;
27import android.widget.FrameLayout;
28import android.widget.ScrollView;
29
30import com.android.systemui.ExpandHelper;
31import com.android.systemui.R;
32import com.android.systemui.statusbar.BaseStatusBar;
33import com.android.systemui.statusbar.policy.NotificationRowLayout;
34
35
36public class StatusBarWindowView extends FrameLayout
37{
38    public static final String TAG = "StatusBarWindowView";
39    public static final boolean DEBUG = BaseStatusBar.DEBUG;
40
41    private ExpandHelper mExpandHelper;
42    private NotificationRowLayout latestItems;
43    private NotificationPanelView mNotificationPanel;
44    private ScrollView mScrollView;
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        latestItems = (NotificationRowLayout) findViewById(R.id.latestItems);
58        mScrollView = (ScrollView) findViewById(R.id.scroll);
59        mNotificationPanel = (NotificationPanelView) findViewById(R.id.notification_panel);
60        int minHeight = getResources().getDimensionPixelSize(R.dimen.notification_row_min_height);
61        int maxHeight = getResources().getDimensionPixelSize(R.dimen.notification_row_max_height);
62        mExpandHelper = new ExpandHelper(mContext, latestItems, minHeight, maxHeight);
63        mExpandHelper.setEventSource(this);
64        mExpandHelper.setScrollView(mScrollView);
65
66        // We really need to be able to animate while window animations are going on
67        // so that activities may be started asynchronously from panel animations
68        final ViewRootImpl root = getViewRootImpl();
69        if (root != null) {
70            root.setDrawDuringWindowsAnimating(true);
71        }
72    }
73
74    @Override
75    public boolean dispatchKeyEvent(KeyEvent event) {
76        boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
77        switch (event.getKeyCode()) {
78        case KeyEvent.KEYCODE_BACK:
79            if (!down) {
80                mService.animateCollapsePanels();
81            }
82            return true;
83        }
84        return super.dispatchKeyEvent(event);
85    }
86
87    @Override
88    public boolean onInterceptTouchEvent(MotionEvent ev) {
89        boolean intercept = false;
90        if (mNotificationPanel.isFullyExpanded() && mScrollView.getVisibility() == View.VISIBLE) {
91            intercept = mExpandHelper.onInterceptTouchEvent(ev);
92        }
93        if (!intercept) {
94            super.onInterceptTouchEvent(ev);
95        }
96        if (intercept) {
97            MotionEvent cancellation = MotionEvent.obtain(ev);
98            cancellation.setAction(MotionEvent.ACTION_CANCEL);
99            latestItems.onInterceptTouchEvent(cancellation);
100            cancellation.recycle();
101        }
102        return intercept;
103    }
104
105    @Override
106    public boolean onTouchEvent(MotionEvent ev) {
107        boolean handled = false;
108        if (mNotificationPanel.isFullyExpanded()) {
109            handled = mExpandHelper.onTouchEvent(ev);
110        }
111        if (!handled) {
112            handled = super.onTouchEvent(ev);
113        }
114        return handled;
115    }
116
117    @Override
118    public void onDraw(Canvas canvas) {
119        super.onDraw(canvas);
120        if (DEBUG) {
121            Paint pt = new Paint();
122            pt.setColor(0x80FFFF00);
123            pt.setStrokeWidth(12.0f);
124            pt.setStyle(Paint.Style.STROKE);
125            canvas.drawRect(0, 0, canvas.getWidth(), canvas.getHeight(), pt);
126        }
127    }
128
129    public void cancelExpandHelper() {
130        if (mExpandHelper != null) {
131            mExpandHelper.cancel();
132        }
133    }
134}
135
136