RecentsConfiguration.java revision 0d767551c55d9e594a0b944bd1926c21a344b5ae 
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    /** Private constructor */
45    private RecentsConfiguration() {}
46
47    /** Updates the configuration to the current context */
48    public static RecentsConfiguration reinitialize(Context context) {
49        if (sInstance == null) {
50            sInstance = new RecentsConfiguration();
51        }
52        sInstance.update(context);
53        return sInstance;
54    }
55
56    /** Returns the current recents configuration */
57    public static RecentsConfiguration getInstance() {
58        return sInstance;
59    }
60
61    /** Updates the state, given the specified context */
62    void update(Context context) {
63        Resources res = context.getResources();
64        DisplayMetrics dm = res.getDisplayMetrics();
65        mDisplayMetrics = dm;
66
67        boolean isLandscape = res.getConfiguration().orientation ==
68                Configuration.ORIENTATION_LANDSCAPE;
69        Console.log(Constants.DebugFlags.UI.MeasureAndLayout,
70                "[RecentsConfiguration|orientation]", isLandscape ? "Landscape" : "Portrait",
71                Console.AnsiGreen);
72
73        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);
74        animationPxMovementPerSecond =
75                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);
76        filteringCurrentViewsMinAnimDuration =
77                res.getInteger(R.integer.recents_filter_animate_current_views_min_duration);
78        filteringNewViewsMinAnimDuration =
79                res.getInteger(R.integer.recents_filter_animate_new_views_min_duration);
80        taskBarEnterAnimDuration =
81                res.getInteger(R.integer.recents_animate_task_bar_enter_duration);
82    }
83
84    public void updateSystemInsets(Rect insets) {
85        systemInsets.set(insets);
86    }
87
88    /** Converts from DPs to PXs */
89    public int pxFromDp(float size) {
90        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
91                size, mDisplayMetrics));
92    }
93    /** Converts from SPs to PXs */
94    public int pxFromSp(float size) {
95        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
96                size, mDisplayMetrics));
97    }
98}
99