RecentsConfiguration.java revision c041d883c3591670441d4c2da8fd1108dfd28acd 
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.app.ActivityManager;
20import android.content.Context;
21import android.content.SharedPreferences;
22import android.content.res.Configuration;
23import android.content.res.Resources;
24import android.graphics.Rect;
25import android.provider.Settings;
26import android.util.DisplayMetrics;
27import android.util.TypedValue;
28import android.view.animation.AnimationUtils;
29import android.view.animation.Interpolator;
30import com.android.systemui.R;
31import com.android.systemui.recents.misc.Console;
32import com.android.systemui.recents.misc.SystemServicesProxy;
33
34
35/** A static Recents configuration for the current context
36 * NOTE: We should not hold any references to a Context from a static instance */
37public class RecentsConfiguration {
38    static RecentsConfiguration sInstance;
39    static int sPrevConfigurationHashCode;
40
41    /** Animations */
42    public float animationPxMovementPerSecond;
43
44    /** Interpolators */
45    public Interpolator fastOutSlowInInterpolator;
46    public Interpolator fastOutLinearInInterpolator;
47    public Interpolator linearOutSlowInInterpolator;
48    public Interpolator quintOutInterpolator;
49
50    /** Filtering */
51    public int filteringCurrentViewsAnimDuration;
52    public int filteringNewViewsAnimDuration;
53
54    /** Insets */
55    public Rect systemInsets = new Rect();
56    public Rect displayRect = new Rect();
57
58    /** Layout */
59    boolean isLandscape;
60    boolean hasTransposedSearchBar;
61    boolean hasTransposedNavBar;
62
63    /** Loading */
64    public int maxNumTasksToLoad;
65
66    /** Search bar */
67    int searchBarAppWidgetId = -1;
68    public int searchBarSpaceHeightPx;
69
70    /** Task stack */
71    public int taskStackScrollDuration;
72    public int taskStackMaxDim;
73    public int taskStackTopPaddingPx;
74    public float taskStackWidthPaddingPct;
75    public float taskStackOverscrollPct;
76
77    /** Transitions */
78    public int transitionEnterFromAppDelay;
79    public int transitionEnterFromHomeDelay;
80
81    /** Task view animation and styles */
82    public int taskViewEnterFromAppDuration;
83    public int taskViewEnterFromHomeDuration;
84    public int taskViewEnterFromHomeStaggerDelay;
85    public int taskViewExitToAppDuration;
86    public int taskViewExitToHomeDuration;
87    public int taskViewRemoveAnimDuration;
88    public int taskViewRemoveAnimTranslationXPx;
89    public int taskViewTranslationZMinPx;
90    public int taskViewTranslationZMaxPx;
91    public int taskViewRoundedCornerRadiusPx;
92    public int taskViewHighlightPx;
93    public int taskViewAffiliateGroupEnterOffsetPx;
94    public float taskViewThumbnailAlpha;
95
96    /** Task bar colors */
97    public int taskBarViewDefaultBackgroundColor;
98    public int taskBarViewLightTextColor;
99    public int taskBarViewDarkTextColor;
100    public int taskBarViewHighlightColor;
101    public float taskBarViewAffiliationColorMinAlpha;
102
103    /** Task bar size & animations */
104    public int taskBarHeight;
105    public int taskBarDismissDozeDelaySeconds;
106
107    /** Nav bar scrim */
108    public int navBarScrimEnterDuration;
109
110    /** Launch states */
111    public boolean launchedWithAltTab;
112    public boolean launchedWithNoRecentTasks;
113    public boolean launchedFromAppWithThumbnail;
114    public boolean launchedFromHome;
115    public boolean launchedReuseTaskStackViews;
116    public int launchedToTaskId;
117
118    /** Misc **/
119    public boolean useHardwareLayers;
120    public int altTabKeyDelay;
121    public boolean fakeShadows;
122
123    /** Dev options and global settings */
124    public boolean lockToAppEnabled;
125    public boolean developerOptionsEnabled;
126    public boolean debugModeEnabled;
127
128    /** Private constructor */
129    private RecentsConfiguration(Context context) {
130        // Properties that don't have to be reloaded with each configuration change can be loaded
131        // here.
132
133        // Interpolators
134        fastOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
135                com.android.internal.R.interpolator.fast_out_slow_in);
136        fastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
137                com.android.internal.R.interpolator.fast_out_linear_in);
138        linearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
139                com.android.internal.R.interpolator.linear_out_slow_in);
140        quintOutInterpolator = AnimationUtils.loadInterpolator(context,
141                com.android.internal.R.interpolator.decelerate_quint);
142    }
143
144    /** Updates the configuration to the current context */
145    public static RecentsConfiguration reinitialize(Context context, SystemServicesProxy ssp) {
146        if (sInstance == null) {
147            sInstance = new RecentsConfiguration(context);
148        }
149        int configHashCode = context.getResources().getConfiguration().hashCode();
150        if (sPrevConfigurationHashCode != configHashCode) {
151            sInstance.update(context);
152            sPrevConfigurationHashCode = configHashCode;
153        }
154        sInstance.updateOnReinitialize(context, ssp);
155        return sInstance;
156    }
157
158    /** Returns the current recents configuration */
159    public static RecentsConfiguration getInstance() {
160        return sInstance;
161    }
162
163    /** Updates the state, given the specified context */
164    void update(Context context) {
165        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
166        Resources res = context.getResources();
167        DisplayMetrics dm = res.getDisplayMetrics();
168
169        // Debug mode
170        debugModeEnabled = settings.getBoolean(Constants.Values.App.Key_DebugModeEnabled, false);
171        if (debugModeEnabled) {
172            Console.Enabled = true;
173        }
174
175        // Layout
176        isLandscape = res.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
177        hasTransposedSearchBar = res.getBoolean(R.bool.recents_has_transposed_search_bar);
178        hasTransposedNavBar = res.getBoolean(R.bool.recents_has_transposed_nav_bar);
179
180        // Insets
181        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);
182
183        // Animations
184        animationPxMovementPerSecond =
185                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);
186
187        // Filtering
188        filteringCurrentViewsAnimDuration =
189                res.getInteger(R.integer.recents_filter_animate_current_views_duration);
190        filteringNewViewsAnimDuration =
191                res.getInteger(R.integer.recents_filter_animate_new_views_duration);
192
193        // Loading
194        maxNumTasksToLoad = ActivityManager.getMaxRecentTasksStatic();
195
196        // Search Bar
197        searchBarSpaceHeightPx = res.getDimensionPixelSize(R.dimen.recents_search_bar_space_height);
198        searchBarAppWidgetId = settings.getInt(Constants.Values.App.Key_SearchAppWidgetId, -1);
199
200        // Task stack
201        taskStackScrollDuration =
202                res.getInteger(R.integer.recents_animate_task_stack_scroll_duration);
203        TypedValue widthPaddingPctValue = new TypedValue();
204        res.getValue(R.dimen.recents_stack_width_padding_percentage, widthPaddingPctValue, true);
205        taskStackWidthPaddingPct = widthPaddingPctValue.getFloat();
206        TypedValue stackOverscrollPctValue = new TypedValue();
207        res.getValue(R.dimen.recents_stack_overscroll_percentage, stackOverscrollPctValue, true);
208        taskStackOverscrollPct = stackOverscrollPctValue.getFloat();
209        taskStackMaxDim = res.getInteger(R.integer.recents_max_task_stack_view_dim);
210        taskStackTopPaddingPx = res.getDimensionPixelSize(R.dimen.recents_stack_top_padding);
211
212        // Transition
213        transitionEnterFromAppDelay =
214                res.getInteger(R.integer.recents_enter_from_app_transition_duration);
215        transitionEnterFromHomeDelay =
216                res.getInteger(R.integer.recents_enter_from_home_transition_duration);
217
218        // Task view animation and styles
219        taskViewEnterFromAppDuration =
220                res.getInteger(R.integer.recents_task_enter_from_app_duration);
221        taskViewEnterFromHomeDuration =
222                res.getInteger(R.integer.recents_task_enter_from_home_duration);
223        taskViewEnterFromHomeStaggerDelay =
224                res.getInteger(R.integer.recents_task_enter_from_home_stagger_delay);
225        taskViewExitToAppDuration =
226                res.getInteger(R.integer.recents_task_exit_to_app_duration);
227        taskViewExitToHomeDuration =
228                res.getInteger(R.integer.recents_task_exit_to_home_duration);
229        taskViewRemoveAnimDuration =
230                res.getInteger(R.integer.recents_animate_task_view_remove_duration);
231        taskViewRemoveAnimTranslationXPx =
232                res.getDimensionPixelSize(R.dimen.recents_task_view_remove_anim_translation_x);
233        taskViewRoundedCornerRadiusPx =
234                res.getDimensionPixelSize(R.dimen.recents_task_view_rounded_corners_radius);
235        taskViewHighlightPx = res.getDimensionPixelSize(R.dimen.recents_task_view_highlight);
236        taskViewTranslationZMinPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_min);
237        taskViewTranslationZMaxPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_max);
238        taskViewAffiliateGroupEnterOffsetPx =
239                res.getDimensionPixelSize(R.dimen.recents_task_view_affiliate_group_enter_offset);
240        TypedValue thumbnailAlphaValue = new TypedValue();
241        res.getValue(R.dimen.recents_task_view_thumbnail_alpha, thumbnailAlphaValue, true);
242        taskViewThumbnailAlpha = thumbnailAlphaValue.getFloat();
243
244        // Task bar colors
245        taskBarViewDefaultBackgroundColor =
246                res.getColor(R.color.recents_task_bar_default_background_color);
247        taskBarViewLightTextColor =
248                res.getColor(R.color.recents_task_bar_light_text_color);
249        taskBarViewDarkTextColor =
250                res.getColor(R.color.recents_task_bar_dark_text_color);
251        taskBarViewHighlightColor =
252                res.getColor(R.color.recents_task_bar_highlight_color);
253        TypedValue affMinAlphaPctValue = new TypedValue();
254        res.getValue(R.dimen.recents_task_affiliation_color_min_alpha_percentage, affMinAlphaPctValue, true);
255        taskBarViewAffiliationColorMinAlpha = affMinAlphaPctValue.getFloat();
256
257        // Task bar size & animations
258        taskBarHeight = res.getDimensionPixelSize(R.dimen.recents_task_bar_height);
259        taskBarDismissDozeDelaySeconds =
260                res.getInteger(R.integer.recents_task_bar_dismiss_delay_seconds);
261
262        // Nav bar scrim
263        navBarScrimEnterDuration =
264                res.getInteger(R.integer.recents_nav_bar_scrim_enter_duration);
265
266        // Misc
267        useHardwareLayers = res.getBoolean(R.bool.config_recents_use_hardware_layers);
268        altTabKeyDelay = res.getInteger(R.integer.recents_alt_tab_key_delay);
269        fakeShadows = res.getBoolean(R.bool.config_recents_fake_shadows);
270    }
271
272    /** Updates the system insets */
273    public void updateSystemInsets(Rect insets) {
274        systemInsets.set(insets);
275    }
276
277    /** Updates the search bar app widget */
278    public void updateSearchBarAppWidgetId(Context context, int appWidgetId) {
279        searchBarAppWidgetId = appWidgetId;
280        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
281        settings.edit().putInt(Constants.Values.App.Key_SearchAppWidgetId,
282                appWidgetId).apply();
283    }
284
285    /** Updates the states that need to be re-read whenever we re-initialize. */
286    void updateOnReinitialize(Context context, SystemServicesProxy ssp) {
287        // Check if the developer options are enabled
288        developerOptionsEnabled = ssp.getGlobalSetting(context,
289                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED) != 0;
290        lockToAppEnabled = ssp.getSystemSetting(context,
291                Settings.System.LOCK_TO_APP_ENABLED) != 0;
292    }
293
294    /** Called when the configuration has changed, and we want to reset any configuration specific
295     * members. */
296    public void updateOnConfigurationChange() {
297        launchedWithAltTab = false;
298        launchedWithNoRecentTasks = false;
299        launchedFromAppWithThumbnail = false;
300        launchedFromHome = false;
301        launchedReuseTaskStackViews = false;
302        launchedToTaskId = -1;
303    }
304
305    /** Returns whether the search bar app widget exists. */
306    public boolean hasSearchBarAppWidget() {
307        return searchBarAppWidgetId >= 0;
308    }
309
310    /** Returns whether the status bar scrim should be animated when shown for the first time. */
311    public boolean shouldAnimateStatusBarScrim() {
312        return launchedFromHome;
313    }
314
315    /** Returns whether the status bar scrim should be visible. */
316    public boolean hasStatusBarScrim() {
317        return !launchedWithNoRecentTasks;
318    }
319
320    /** Returns whether the nav bar scrim should be animated when shown for the first time. */
321    public boolean shouldAnimateNavBarScrim() {
322        return true;
323    }
324
325    /** Returns whether the nav bar scrim should be visible. */
326    public boolean hasNavBarScrim() {
327        // Only show the scrim if we have recent tasks, and if the nav bar is not transposed
328        return !launchedWithNoRecentTasks && (!hasTransposedNavBar || !isLandscape);
329    }
330
331    /** Returns whether the current layout is horizontal. */
332    public boolean hasHorizontalLayout() {
333        return isLandscape && hasTransposedSearchBar;
334    }
335
336    /**
337     * Returns the task stack bounds in the current orientation. These bounds do not account for
338     * the system insets.
339     */
340    public void getTaskStackBounds(int windowWidth, int windowHeight, int topInset, int rightInset,
341                                   Rect taskStackBounds) {
342        Rect searchBarBounds = new Rect();
343        getSearchBarBounds(windowWidth, windowHeight, topInset, searchBarBounds);
344        if (isLandscape && hasTransposedSearchBar) {
345            // In landscape, the search bar appears on the left, but we overlay it on top
346            taskStackBounds.set(0, topInset, windowWidth - rightInset, windowHeight);
347        } else {
348            // In portrait, the search bar appears on the top (which already has the inset)
349            taskStackBounds.set(0, searchBarBounds.bottom, windowWidth, windowHeight);
350        }
351    }
352
353    /**
354     * Returns the search bar bounds in the current orientation.  These bounds do not account for
355     * the system insets.
356     */
357    public void getSearchBarBounds(int windowWidth, int windowHeight, int topInset,
358                                   Rect searchBarSpaceBounds) {
359        // Return empty rects if search is not enabled
360        int searchBarSize = searchBarSpaceHeightPx;
361        if (!Constants.DebugFlags.App.EnableSearchLayout || !hasSearchBarAppWidget()) {
362            searchBarSize = 0;
363        }
364
365        if (isLandscape && hasTransposedSearchBar) {
366            // In landscape, the search bar appears on the left
367            searchBarSpaceBounds.set(0, topInset, searchBarSize, windowHeight);
368        } else {
369            // In portrait, the search bar appears on the top
370            searchBarSpaceBounds.set(0, topInset, windowWidth, topInset + searchBarSize);
371        }
372    }
373}
374