PhoneStatusBarView.java revision b8ea2f59e2727020ac211d5b6f6d421314546439 
1/*
2 * Copyright (C) 2008 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.ActivityManager;
20import android.app.StatusBarManager;
21import android.content.Context;
22import android.content.res.Configuration;
23import android.content.res.Resources;
24import android.graphics.Canvas;
25import android.graphics.Color;
26import android.graphics.Rect;
27import android.os.SystemClock;
28import android.util.AttributeSet;
29import android.util.Log;
30import android.view.KeyEvent;
31import android.view.MotionEvent;
32import android.view.View;
33import android.view.ViewGroup;
34import android.view.ViewParent;
35import android.view.accessibility.AccessibilityEvent;
36import android.widget.FrameLayout;
37
38import com.android.systemui.R;
39import com.android.systemui.statusbar.BaseStatusBar;
40import com.android.systemui.statusbar.policy.FixedSizeDrawable;
41
42public class PhoneStatusBarView extends PanelBar {
43    private static final String TAG = "PhoneStatusBarView";
44    PhoneStatusBar mBar;
45    int mScrimColor;
46    float mMinFlingGutter;
47    float mNotificationWidth;
48    boolean mFullWidthNotifications;
49    PanelView mFadingPanel = null;
50    PanelView mNotificationPanel, mSettingsPanel;
51
52    public PhoneStatusBarView(Context context, AttributeSet attrs) {
53        super(context, attrs);
54    }
55
56    public void setBar(PhoneStatusBar bar) {
57        mBar = bar;
58    }
59
60    @Override
61    public void onAttachedToWindow() {
62        Resources res = getContext().getResources();
63        mScrimColor = res.getColor(R.color.notification_panel_scrim_color);
64        mMinFlingGutter = res.getDimension(R.dimen.settings_panel_fling_gutter);
65        mFullWidthNotifications = false;
66        try {
67            mNotificationWidth = res.getDimension(R.dimen.notification_panel_width);
68        } catch (Resources.NotFoundException ex) {
69            mFullWidthNotifications = true;
70        }
71    }
72
73    @Override
74    public void addPanel(PanelView pv) {
75        super.addPanel(pv);
76        if (pv.getId() == R.id.notification_panel) {
77            mNotificationPanel = pv;
78        } else if (pv.getId() == R.id.settings_panel){
79            mSettingsPanel = pv;
80        }
81    }
82
83    @Override
84    public boolean panelsEnabled() {
85        return ((mBar.mDisabled & StatusBarManager.DISABLE_EXPAND) == 0);
86    }
87
88    @Override
89    public boolean onRequestSendAccessibilityEvent(View child, AccessibilityEvent event) {
90        if (super.onRequestSendAccessibilityEvent(child, event)) {
91            // The status bar is very small so augment the view that the user is touching
92            // with the content of the status bar a whole. This way an accessibility service
93            // may announce the current item as well as the entire content if appropriate.
94            AccessibilityEvent record = AccessibilityEvent.obtain();
95            onInitializeAccessibilityEvent(record);
96            dispatchPopulateAccessibilityEvent(record);
97            event.appendRecord(record);
98            return true;
99        }
100        return false;
101    }
102
103    @Override
104    public PanelView selectPanelForTouchX(float x) {
105        // We split the status bar into thirds: the left 2/3 are for notifications, and the
106        // right 1/3 for quick settings. If you pull the status bar down a second time you'll
107        // toggle panels no matter where you pull it down.
108        final float w = (float) getMeasuredWidth();
109        final float gutter = w - mNotificationWidth;
110        final boolean useGutter = !mFullWidthNotifications && gutter > mMinFlingGutter;
111        final float threshold = 1.0f - (gutter / w);
112        final float f = x / w;
113        if ((useGutter && f > threshold && mSettingsPanel.getExpandedFraction() != 1.0f) ||
114            mNotificationPanel.getExpandedFraction() == 1.0f) {
115            return mSettingsPanel;
116        }
117        return mNotificationPanel;
118    }
119
120    @Override
121    public void onPanelPeeked() {
122        super.onPanelPeeked();
123        mBar.makeExpandedVisible(true);
124        if (mFadingPanel == null) {
125            mFadingPanel = mTouchingPanel;
126        }
127    }
128
129    @Override
130    public void onAllPanelsCollapsed() {
131        super.onAllPanelsCollapsed();
132        mBar.makeExpandedInvisible();
133        mFadingPanel = null;
134    }
135
136    @Override
137    public void onPanelFullyOpened(PanelView openPanel) {
138        mFadingPanel = openPanel;
139    }
140
141    @Override
142    public boolean onTouchEvent(MotionEvent event) {
143        return mBar.interceptTouchEvent(event) || super.onTouchEvent(event);
144    }
145
146    @Override
147    public boolean onInterceptTouchEvent(MotionEvent event) {
148        return mBar.interceptTouchEvent(event) || super.onInterceptTouchEvent(event);
149    }
150
151    @Override
152    public void panelExpansionChanged(PanelView pv, float frac) {
153        super.panelExpansionChanged(pv, frac);
154
155        if (mFadingPanel == pv
156                && mScrimColor != 0 && ActivityManager.isHighEndGfx()) {
157            // woo, special effects
158            final float k = (float)(1f-0.5f*(1f-Math.cos(3.14159f * Math.pow(1f-frac, 2.2f))));
159            // attenuate background color alpha by k
160            final int color = (int) ((float)(mScrimColor >>> 24) * k) << 24 | (mScrimColor & 0xFFFFFF);
161            mBar.mStatusBarWindow.setBackgroundColor(color);
162        }
163
164        mBar.updateCarrierLabelVisibility(false);
165    }
166
167
168}
169