1 /*
2  * Copyright (C) 2014 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 
17 package com.android.systemui.statusbar.policy;
18 
19 import android.view.LayoutInflater;
20 import android.view.View;
21 import android.view.ViewPropertyAnimator;
22 import android.widget.FrameLayout;
23 
24 import com.android.systemui.Interpolators;
25 import com.android.systemui.R;
26 import com.android.systemui.statusbar.ScrimView;
27 import com.android.systemui.statusbar.phone.StatusBarWindowView;
28 import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
29 
30 /**
31  * Controls showing and hiding of the brightness mirror.
32  */
33 public class BrightnessMirrorController {
34 
35     private final NotificationStackScrollLayout mStackScroller;
36     public long TRANSITION_DURATION_OUT = 150;
37     public long TRANSITION_DURATION_IN = 200;
38 
39     private final StatusBarWindowView mStatusBarWindow;
40     private final ScrimView mScrimBehind;
41     private final View mNotificationPanel;
42     private final int[] mInt2Cache = new int[2];
43     private View mBrightnessMirror;
44 
BrightnessMirrorController(StatusBarWindowView statusBarWindow)45     public BrightnessMirrorController(StatusBarWindowView statusBarWindow) {
46         mStatusBarWindow = statusBarWindow;
47         mScrimBehind = (ScrimView) statusBarWindow.findViewById(R.id.scrim_behind);
48         mBrightnessMirror = statusBarWindow.findViewById(R.id.brightness_mirror);
49         mNotificationPanel = statusBarWindow.findViewById(R.id.notification_panel);
50         mStackScroller = (NotificationStackScrollLayout) statusBarWindow.findViewById(
51                 R.id.notification_stack_scroller);
52     }
53 
showMirror()54     public void showMirror() {
55         mBrightnessMirror.setVisibility(View.VISIBLE);
56         mStackScroller.setFadingOut(true);
57         mScrimBehind.animateViewAlpha(0.0f, TRANSITION_DURATION_OUT, Interpolators.ALPHA_OUT);
58         outAnimation(mNotificationPanel.animate())
59                 .withLayer();
60     }
61 
hideMirror()62     public void hideMirror() {
63         mScrimBehind.animateViewAlpha(1.0f, TRANSITION_DURATION_IN, Interpolators.ALPHA_IN);
64         inAnimation(mNotificationPanel.animate())
65                 .withLayer()
66                 .withEndAction(new Runnable() {
67                     @Override
68                     public void run() {
69                         mBrightnessMirror.setVisibility(View.INVISIBLE);
70                         mStackScroller.setFadingOut(false);
71                     }
72                 });
73     }
74 
outAnimation(ViewPropertyAnimator a)75     private ViewPropertyAnimator outAnimation(ViewPropertyAnimator a) {
76         return a.alpha(0.0f)
77                 .setDuration(TRANSITION_DURATION_OUT)
78                 .setInterpolator(Interpolators.ALPHA_OUT)
79                 .withEndAction(null);
80     }
inAnimation(ViewPropertyAnimator a)81     private ViewPropertyAnimator inAnimation(ViewPropertyAnimator a) {
82         return a.alpha(1.0f)
83                 .setDuration(TRANSITION_DURATION_IN)
84                 .setInterpolator(Interpolators.ALPHA_IN);
85     }
86 
87 
setLocation(View original)88     public void setLocation(View original) {
89         original.getLocationInWindow(mInt2Cache);
90 
91         // Original is slightly larger than the mirror, so make sure to use the center for the
92         // positioning.
93         int originalX = mInt2Cache[0] + original.getWidth() / 2;
94         int originalY = mInt2Cache[1] + original.getHeight() / 2;
95         mBrightnessMirror.setTranslationX(0);
96         mBrightnessMirror.setTranslationY(0);
97         mBrightnessMirror.getLocationInWindow(mInt2Cache);
98         int mirrorX = mInt2Cache[0] + mBrightnessMirror.getWidth() / 2;
99         int mirrorY = mInt2Cache[1] + mBrightnessMirror.getHeight() / 2;
100         mBrightnessMirror.setTranslationX(originalX - mirrorX);
101         mBrightnessMirror.setTranslationY(originalY - mirrorY);
102     }
103 
getMirror()104     public View getMirror() {
105         return mBrightnessMirror;
106     }
107 
updateResources()108     public void updateResources() {
109         FrameLayout.LayoutParams lp =
110                 (FrameLayout.LayoutParams) mBrightnessMirror.getLayoutParams();
111         lp.width = mBrightnessMirror.getResources().getDimensionPixelSize(
112                 R.dimen.notification_panel_width);
113         lp.gravity = mBrightnessMirror.getResources().getInteger(
114                 R.integer.notification_panel_layout_gravity);
115         mBrightnessMirror.setLayoutParams(lp);
116     }
117 
onDensityOrFontScaleChanged()118     public void onDensityOrFontScaleChanged() {
119         int index = mStatusBarWindow.indexOfChild(mBrightnessMirror);
120         mStatusBarWindow.removeView(mBrightnessMirror);
121         mBrightnessMirror = LayoutInflater.from(mBrightnessMirror.getContext()).inflate(
122                 R.layout.brightness_mirror, mStatusBarWindow, false);
123         mStatusBarWindow.addView(mBrightnessMirror, index);
124     }
125 }
126