RecentsConfiguration.java revision 96d704186621f6310e0e7d39db57caff67baa96c 
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    /** Levels of svelte in increasing severity/austerity. */
42    // No svelting.
43    public static final int SVELTE_NONE = 0;
44    // Limit thumbnail cache to number of visible thumbnails when Recents was loaded, disable
45    // caching thumbnails as you scroll.
46    public static final int SVELTE_LIMIT_CACHE = 1;
47    // Disable the thumbnail cache, load thumbnails asynchronously when the activity loads and
48    // evict all thumbnails when hidden.
49    public static final int SVELTE_DISABLE_CACHE = 2;
50    // Disable all thumbnail loading.
51    public static final int SVELTE_DISABLE_LOADING = 3;
52
53    /** Animations */
54    public float animationPxMovementPerSecond;
55
56    /** Interpolators */
57    public Interpolator fastOutSlowInInterpolator;
58    public Interpolator fastOutLinearInInterpolator;
59    public Interpolator linearOutSlowInInterpolator;
60    public Interpolator quintOutInterpolator;
61
62    /** Filtering */
63    public int filteringCurrentViewsAnimDuration;
64    public int filteringNewViewsAnimDuration;
65
66    /** Insets */
67    public Rect systemInsets = new Rect();
68    public Rect displayRect = new Rect();
69
70    /** Layout */
71    boolean isLandscape;
72    boolean hasTransposedSearchBar;
73    boolean hasTransposedNavBar;
74
75    /** Loading */
76    public int maxNumTasksToLoad;
77
78    /** Search bar */
79    int searchBarAppWidgetId = -1;
80    public int searchBarSpaceHeightPx;
81
82    /** Task stack */
83    public int taskStackScrollDuration;
84    public int taskStackMaxDim;
85    public int taskStackTopPaddingPx;
86    public float taskStackWidthPaddingPct;
87    public float taskStackOverscrollPct;
88
89    /** Task view animation and styles */
90    public int taskViewEnterFromHomeDelay;
91    public int taskViewEnterFromHomeDuration;
92    public int taskViewEnterFromHomeStaggerDelay;
93    public int taskViewEnterFromHomeStaggerDuration;
94    public int taskViewExitToHomeDuration;
95    public int taskViewRemoveAnimDuration;
96    public int taskViewRemoveAnimTranslationXPx;
97    public int taskViewTranslationZMinPx;
98    public int taskViewTranslationZMaxPx;
99    public int taskViewRoundedCornerRadiusPx;
100    public int taskViewHighlightPx;
101    public int taskViewAffiliateGroupEnterOffsetPx;
102    public float taskViewThumbnailAlpha;
103
104    /** Task bar colors */
105    public int taskBarViewDefaultBackgroundColor;
106    public int taskBarViewLightTextColor;
107    public int taskBarViewDarkTextColor;
108    public int taskBarViewHighlightColor;
109    public float taskBarViewAffiliationColorMinAlpha;
110
111    /** Task bar size & animations */
112    public int taskBarHeight;
113    public int taskBarEnterAnimDuration;
114    public int taskBarEnterAnimDelay;
115    public int taskBarExitAnimDuration;
116    public int taskBarDismissDozeDelaySeconds;
117
118    /** Lock to app */
119    public int taskViewLockToAppButtonHeight;
120    public int taskViewLockToAppShortAnimDuration;
121    public int taskViewLockToAppLongAnimDuration;
122
123    /** Nav bar scrim */
124    public int navBarScrimEnterDuration;
125
126    /** Launch states */
127    public boolean launchedWithAltTab;
128    public boolean launchedWithNoRecentTasks;
129    public boolean launchedFromAppWithThumbnail;
130    public boolean launchedFromHome;
131    public boolean launchedReuseTaskStackViews;
132    public int launchedToTaskId;
133
134    /** Misc **/
135    public boolean useHardwareLayers;
136    public int altTabKeyDelay;
137    public boolean fakeShadows;
138
139    /** Dev options and global settings */
140    public boolean lockToAppEnabled;
141    public boolean developerOptionsEnabled;
142    public boolean debugModeEnabled;
143    public int svelteLevel;
144
145    /** Private constructor */
146    private RecentsConfiguration(Context context) {
147        // Properties that don't have to be reloaded with each configuration change can be loaded
148        // here.
149
150        // Interpolators
151        fastOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
152                com.android.internal.R.interpolator.fast_out_slow_in);
153        fastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
154                com.android.internal.R.interpolator.fast_out_linear_in);
155        linearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
156                com.android.internal.R.interpolator.linear_out_slow_in);
157        quintOutInterpolator = AnimationUtils.loadInterpolator(context,
158                com.android.internal.R.interpolator.decelerate_quint);
159    }
160
161    /** Updates the configuration to the current context */
162    public static RecentsConfiguration reinitialize(Context context, SystemServicesProxy ssp) {
163        if (sInstance == null) {
164            sInstance = new RecentsConfiguration(context);
165        }
166        int configHashCode = context.getResources().getConfiguration().hashCode();
167        if (sPrevConfigurationHashCode != configHashCode) {
168            sInstance.update(context);
169            sPrevConfigurationHashCode = configHashCode;
170        }
171        sInstance.updateOnReinitialize(context, ssp);
172        return sInstance;
173    }
174
175    /** Returns the current recents configuration */
176    public static RecentsConfiguration getInstance() {
177        return sInstance;
178    }
179
180    /** Updates the state, given the specified context */
181    void update(Context context) {
182        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
183        Resources res = context.getResources();
184        DisplayMetrics dm = res.getDisplayMetrics();
185
186        // Debug mode
187        debugModeEnabled = settings.getBoolean(Constants.Values.App.Key_DebugModeEnabled, false);
188        if (debugModeEnabled) {
189            Console.Enabled = true;
190        }
191
192        // Layout
193        isLandscape = res.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
194        hasTransposedSearchBar = res.getBoolean(R.bool.recents_has_transposed_search_bar);
195        hasTransposedNavBar = res.getBoolean(R.bool.recents_has_transposed_nav_bar);
196
197        // Insets
198        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);
199
200        // Animations
201        animationPxMovementPerSecond =
202                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);
203
204        // Filtering
205        filteringCurrentViewsAnimDuration =
206                res.getInteger(R.integer.recents_filter_animate_current_views_duration);
207        filteringNewViewsAnimDuration =
208                res.getInteger(R.integer.recents_filter_animate_new_views_duration);
209
210        // Loading
211        maxNumTasksToLoad = ActivityManager.getMaxRecentTasksStatic();
212
213        // Search Bar
214        searchBarSpaceHeightPx = res.getDimensionPixelSize(R.dimen.recents_search_bar_space_height);
215        searchBarAppWidgetId = settings.getInt(Constants.Values.App.Key_SearchAppWidgetId, -1);
216
217        // Task stack
218        taskStackScrollDuration =
219                res.getInteger(R.integer.recents_animate_task_stack_scroll_duration);
220        TypedValue widthPaddingPctValue = new TypedValue();
221        res.getValue(R.dimen.recents_stack_width_padding_percentage, widthPaddingPctValue, true);
222        taskStackWidthPaddingPct = widthPaddingPctValue.getFloat();
223        TypedValue stackOverscrollPctValue = new TypedValue();
224        res.getValue(R.dimen.recents_stack_overscroll_percentage, stackOverscrollPctValue, true);
225        taskStackOverscrollPct = stackOverscrollPctValue.getFloat();
226        taskStackMaxDim = res.getInteger(R.integer.recents_max_task_stack_view_dim);
227        taskStackTopPaddingPx = res.getDimensionPixelSize(R.dimen.recents_stack_top_padding);
228
229        // Task view animation and styles
230        taskViewEnterFromHomeDelay =
231                res.getInteger(R.integer.recents_animate_task_enter_from_home_delay);
232        taskViewEnterFromHomeDuration =
233                res.getInteger(R.integer.recents_animate_task_enter_from_home_duration);
234        taskViewEnterFromHomeStaggerDelay =
235                res.getInteger(R.integer.recents_animate_task_enter_from_home_stagger_delay);
236        taskViewExitToHomeDuration =
237                res.getInteger(R.integer.recents_animate_task_exit_to_home_duration);
238        taskViewRemoveAnimDuration =
239                res.getInteger(R.integer.recents_animate_task_view_remove_duration);
240        taskViewRemoveAnimTranslationXPx =
241                res.getDimensionPixelSize(R.dimen.recents_task_view_remove_anim_translation_x);
242        taskViewRoundedCornerRadiusPx =
243                res.getDimensionPixelSize(R.dimen.recents_task_view_rounded_corners_radius);
244        taskViewHighlightPx = res.getDimensionPixelSize(R.dimen.recents_task_view_highlight);
245        taskViewTranslationZMinPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_min);
246        taskViewTranslationZMaxPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_max);
247        taskViewAffiliateGroupEnterOffsetPx =
248                res.getDimensionPixelSize(R.dimen.recents_task_view_affiliate_group_enter_offset);
249        TypedValue thumbnailAlphaValue = new TypedValue();
250        res.getValue(R.dimen.recents_task_view_thumbnail_alpha, thumbnailAlphaValue, true);
251        taskViewThumbnailAlpha = thumbnailAlphaValue.getFloat();
252
253        // Task bar colors
254        taskBarViewDefaultBackgroundColor =
255                res.getColor(R.color.recents_task_bar_default_background_color);
256        taskBarViewLightTextColor =
257                res.getColor(R.color.recents_task_bar_light_text_color);
258        taskBarViewDarkTextColor =
259                res.getColor(R.color.recents_task_bar_dark_text_color);
260        taskBarViewHighlightColor =
261                res.getColor(R.color.recents_task_bar_highlight_color);
262        TypedValue affMinAlphaPctValue = new TypedValue();
263        res.getValue(R.dimen.recents_task_affiliation_color_min_alpha_percentage, affMinAlphaPctValue, true);
264        taskBarViewAffiliationColorMinAlpha = affMinAlphaPctValue.getFloat();
265
266        // Task bar size & animations
267        taskBarHeight = res.getDimensionPixelSize(R.dimen.recents_task_bar_height);
268        taskBarEnterAnimDuration =
269                res.getInteger(R.integer.recents_animate_task_bar_enter_duration);
270        taskBarEnterAnimDelay =
271                res.getInteger(R.integer.recents_animate_task_bar_enter_delay);
272        taskBarExitAnimDuration =
273                res.getInteger(R.integer.recents_animate_task_bar_exit_duration);
274        taskBarDismissDozeDelaySeconds =
275                res.getInteger(R.integer.recents_task_bar_dismiss_delay_seconds);
276
277        // Lock to app
278        taskViewLockToAppButtonHeight =
279                res.getDimensionPixelSize(R.dimen.recents_task_view_lock_to_app_button_height);
280        taskViewLockToAppShortAnimDuration =
281                res.getInteger(R.integer.recents_animate_lock_to_app_button_short_duration);
282        taskViewLockToAppLongAnimDuration =
283                res.getInteger(R.integer.recents_animate_lock_to_app_button_long_duration);
284
285        // Nav bar scrim
286        navBarScrimEnterDuration =
287                res.getInteger(R.integer.recents_nav_bar_scrim_enter_duration);
288
289        // Misc
290        useHardwareLayers = res.getBoolean(R.bool.config_recents_use_hardware_layers);
291        altTabKeyDelay = res.getInteger(R.integer.recents_alt_tab_key_delay);
292        fakeShadows = res.getBoolean(R.bool.config_recents_fake_shadows);
293        svelteLevel = res.getInteger(R.integer.recents_svelte_level);
294    }
295
296    /** Updates the system insets */
297    public void updateSystemInsets(Rect insets) {
298        systemInsets.set(insets);
299    }
300
301    /** Updates the search bar app widget */
302    public void updateSearchBarAppWidgetId(Context context, int appWidgetId) {
303        searchBarAppWidgetId = appWidgetId;
304        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
305        settings.edit().putInt(Constants.Values.App.Key_SearchAppWidgetId,
306                appWidgetId).apply();
307    }
308
309    /** Updates the states that need to be re-read whenever we re-initialize. */
310    void updateOnReinitialize(Context context, SystemServicesProxy ssp) {
311        // Check if the developer options are enabled
312        developerOptionsEnabled = ssp.getGlobalSetting(context,
313                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED) != 0;
314        lockToAppEnabled = ssp.getSystemSetting(context,
315                Settings.System.LOCK_TO_APP_ENABLED) != 0;
316    }
317
318    /** Called when the configuration has changed, and we want to reset any configuration specific
319     * members. */
320    public void updateOnConfigurationChange() {
321        launchedWithAltTab = false;
322        launchedWithNoRecentTasks = false;
323        launchedFromAppWithThumbnail = false;
324        launchedFromHome = false;
325        launchedReuseTaskStackViews = false;
326        launchedToTaskId = -1;
327    }
328
329    /** Returns whether the search bar app widget exists. */
330    public boolean hasSearchBarAppWidget() {
331        return searchBarAppWidgetId >= 0;
332    }
333
334    /** Returns whether the status bar scrim should be animated when shown for the first time. */
335    public boolean shouldAnimateStatusBarScrim() {
336        return launchedFromHome;
337    }
338
339    /** Returns whether the status bar scrim should be visible. */
340    public boolean hasStatusBarScrim() {
341        return !launchedWithNoRecentTasks;
342    }
343
344    /** Returns whether the nav bar scrim should be animated when shown for the first time. */
345    public boolean shouldAnimateNavBarScrim() {
346        return true;
347    }
348
349    /** Returns whether the nav bar scrim should be visible. */
350    public boolean hasNavBarScrim() {
351        // Only show the scrim if we have recent tasks, and if the nav bar is not transposed
352        return !launchedWithNoRecentTasks && (!hasTransposedNavBar || !isLandscape);
353    }
354
355    /** Returns whether the current layout is horizontal. */
356    public boolean hasHorizontalLayout() {
357        return isLandscape && hasTransposedSearchBar;
358    }
359
360    /**
361     * Returns the task stack bounds in the current orientation. These bounds do not account for
362     * the system insets.
363     */
364    public void getTaskStackBounds(int windowWidth, int windowHeight, int topInset, int rightInset,
365                                   Rect taskStackBounds) {
366        Rect searchBarBounds = new Rect();
367        getSearchBarBounds(windowWidth, windowHeight, topInset, searchBarBounds);
368        if (isLandscape && hasTransposedSearchBar) {
369            // In landscape, the search bar appears on the left, but we overlay it on top
370            taskStackBounds.set(0, topInset, windowWidth - rightInset, windowHeight);
371        } else {
372            // In portrait, the search bar appears on the top (which already has the inset)
373            taskStackBounds.set(0, searchBarBounds.bottom, windowWidth, windowHeight);
374        }
375    }
376
377    /**
378     * Returns the search bar bounds in the current orientation.  These bounds do not account for
379     * the system insets.
380     */
381    public void getSearchBarBounds(int windowWidth, int windowHeight, int topInset,
382                                   Rect searchBarSpaceBounds) {
383        // Return empty rects if search is not enabled
384        int searchBarSize = searchBarSpaceHeightPx;
385        if (!Constants.DebugFlags.App.EnableSearchLayout || !hasSearchBarAppWidget()) {
386            searchBarSize = 0;
387        }
388
389        if (isLandscape && hasTransposedSearchBar) {
390            // In landscape, the search bar appears on the left
391            searchBarSpaceBounds.set(0, topInset, searchBarSize, windowHeight);
392        } else {
393            // In portrait, the search bar appears on the top
394            searchBarSpaceBounds.set(0, topInset, windowWidth, topInset + searchBarSize);
395        }
396    }
397}
398