RecentsConfiguration.java revision 11ca76a53c60a1898956614315ae929668c523d6 
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
17package com.android.systemui.recents;
18
19import android.content.Context;
20import android.content.res.Configuration;
21import android.content.res.Resources;
22import android.graphics.Rect;
23import android.util.DisplayMetrics;
24import android.util.TypedValue;
25import com.android.systemui.R;
26
27
28/** A static Recents configuration for the current context
29 * NOTE: We should not hold any references to a Context from a static instance */
30public class RecentsConfiguration {
31    static RecentsConfiguration sInstance;
32
33    DisplayMetrics mDisplayMetrics;
34
35    public Rect systemInsets = new Rect();
36    public Rect displayRect = new Rect();
37
38    public float animationPxMovementPerSecond;
39
40    public int filteringCurrentViewsMinAnimDuration;
41    public int filteringNewViewsMinAnimDuration;
42    public int taskBarEnterAnimDuration;
43
44    public boolean launchedWithThumbnailAnimation;
45
46    /** Private constructor */
47    private RecentsConfiguration() {}
48
49    /** Updates the configuration to the current context */
50    public static RecentsConfiguration reinitialize(Context context) {
51        if (sInstance == null) {
52            sInstance = new RecentsConfiguration();
53        }
54        sInstance.update(context);
55        return sInstance;
56    }
57
58    /** Returns the current recents configuration */
59    public static RecentsConfiguration getInstance() {
60        return sInstance;
61    }
62
63    /** Updates the state, given the specified context */
64    void update(Context context) {
65        Resources res = context.getResources();
66        DisplayMetrics dm = res.getDisplayMetrics();
67        mDisplayMetrics = dm;
68
69        boolean isLandscape = res.getConfiguration().orientation ==
70                Configuration.ORIENTATION_LANDSCAPE;
71        Console.log(Constants.DebugFlags.UI.MeasureAndLayout,
72                "[RecentsConfiguration|orientation]", isLandscape ? "Landscape" : "Portrait",
73                Console.AnsiGreen);
74
75        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);
76        animationPxMovementPerSecond =
77                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);
78        filteringCurrentViewsMinAnimDuration =
79                res.getInteger(R.integer.recents_filter_animate_current_views_min_duration);
80        filteringNewViewsMinAnimDuration =
81                res.getInteger(R.integer.recents_filter_animate_new_views_min_duration);
82        taskBarEnterAnimDuration =
83                res.getInteger(R.integer.recents_animate_task_bar_enter_duration);
84    }
85
86    /** Updates the system insets */
87    public void updateSystemInsets(Rect insets) {
88        systemInsets.set(insets);
89    }
90
91    /** Converts from DPs to PXs */
92    public int pxFromDp(float size) {
93        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
94                size, mDisplayMetrics));
95    }
96    /** Converts from SPs to PXs */
97    public int pxFromSp(float size) {
98        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
99                size, mDisplayMetrics));
100    }
101}
102