RecentsConfiguration.java revision e8199c582d826a39e6e47b0d8418834c15242fec 
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    /** Task view animation and styles */
78    public int taskViewEnterFromHomeDelay;
79    public int taskViewEnterFromHomeDuration;
80    public int taskViewEnterFromHomeStaggerDelay;
81    public int taskViewExitToHomeDuration;
82    public int taskViewRemoveAnimDuration;
83    public int taskViewRemoveAnimTranslationXPx;
84    public int taskViewTranslationZMinPx;
85    public int taskViewTranslationZMaxPx;
86    public int taskViewRoundedCornerRadiusPx;
87    public int taskViewHighlightPx;
88    public int taskViewAffiliateGroupEnterOffsetPx;
89    public float taskViewThumbnailAlpha;
90
91    /** Task bar colors */
92    public int taskBarViewDefaultBackgroundColor;
93    public int taskBarViewLightTextColor;
94    public int taskBarViewDarkTextColor;
95    public int taskBarViewHighlightColor;
96    public float taskBarViewAffiliationColorMinAlpha;
97
98    /** Task bar size & animations */
99    public int taskBarHeight;
100    public int taskBarEnterAnimDuration;
101    public int taskBarEnterAnimDelay;
102    public int taskBarExitAnimDuration;
103    public int taskBarDismissDozeDelaySeconds;
104
105    /** Lock to app */
106    public int taskViewLockToAppButtonHeight;
107    public int taskViewLockToAppShortAnimDuration;
108    public int taskViewLockToAppLongAnimDuration;
109
110    /** Nav bar scrim */
111    public int navBarScrimEnterDuration;
112
113    /** Launch states */
114    public boolean launchedWithAltTab;
115    public boolean launchedWithNoRecentTasks;
116    public boolean launchedFromAppWithThumbnail;
117    public boolean launchedFromAppWithScreenshot;
118    public boolean launchedFromHome;
119    public int launchedToTaskId;
120
121    /** Misc **/
122    public boolean useHardwareLayers;
123    public int altTabKeyDelay;
124
125    /** Dev options and global settings */
126    public boolean lockToAppEnabled;
127    public boolean developerOptionsEnabled;
128    public boolean debugModeEnabled;
129
130    /** Private constructor */
131    private RecentsConfiguration(Context context) {
132        // Properties that don't have to be reloaded with each configuration change can be loaded
133        // here.
134
135        // Interpolators
136        fastOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
137                com.android.internal.R.interpolator.fast_out_slow_in);
138        fastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
139                com.android.internal.R.interpolator.fast_out_linear_in);
140        linearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
141                com.android.internal.R.interpolator.linear_out_slow_in);
142        quintOutInterpolator = AnimationUtils.loadInterpolator(context,
143                com.android.internal.R.interpolator.decelerate_quint);
144    }
145
146    /** Updates the configuration to the current context */
147    public static RecentsConfiguration reinitialize(Context context, SystemServicesProxy ssp) {
148        if (sInstance == null) {
149            sInstance = new RecentsConfiguration(context);
150        }
151        int configHashCode = context.getResources().getConfiguration().hashCode();
152        if (sPrevConfigurationHashCode != configHashCode) {
153            sInstance.update(context);
154            sPrevConfigurationHashCode = configHashCode;
155        }
156        sInstance.updateOnReinitialize(context, ssp);
157        return sInstance;
158    }
159
160    /** Returns the current recents configuration */
161    public static RecentsConfiguration getInstance() {
162        return sInstance;
163    }
164
165    /** Updates the state, given the specified context */
166    void update(Context context) {
167        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
168        Resources res = context.getResources();
169        DisplayMetrics dm = res.getDisplayMetrics();
170
171        // Debug mode
172        debugModeEnabled = settings.getBoolean(Constants.Values.App.Key_DebugModeEnabled, false);
173        if (debugModeEnabled) {
174            Console.Enabled = true;
175        }
176
177        // Layout
178        isLandscape = res.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
179        hasTransposedSearchBar = res.getBoolean(R.bool.recents_has_transposed_search_bar);
180        hasTransposedNavBar = res.getBoolean(R.bool.recents_has_transposed_nav_bar);
181
182        // Insets
183        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);
184
185        // Animations
186        animationPxMovementPerSecond =
187                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);
188
189        // Filtering
190        filteringCurrentViewsAnimDuration =
191                res.getInteger(R.integer.recents_filter_animate_current_views_duration);
192        filteringNewViewsAnimDuration =
193                res.getInteger(R.integer.recents_filter_animate_new_views_duration);
194
195        // Loading
196        maxNumTasksToLoad = ActivityManager.getMaxRecentTasksStatic();
197
198        // Search Bar
199        searchBarSpaceHeightPx = res.getDimensionPixelSize(R.dimen.recents_search_bar_space_height);
200        searchBarAppWidgetId = settings.getInt(Constants.Values.App.Key_SearchAppWidgetId, -1);
201
202        // Task stack
203        taskStackScrollDuration =
204                res.getInteger(R.integer.recents_animate_task_stack_scroll_duration);
205        TypedValue widthPaddingPctValue = new TypedValue();
206        res.getValue(R.dimen.recents_stack_width_padding_percentage, widthPaddingPctValue, true);
207        taskStackWidthPaddingPct = widthPaddingPctValue.getFloat();
208        TypedValue stackOverscrollPctValue = new TypedValue();
209        res.getValue(R.dimen.recents_stack_overscroll_percentage, stackOverscrollPctValue, true);
210        taskStackOverscrollPct = stackOverscrollPctValue.getFloat();
211        taskStackMaxDim = res.getInteger(R.integer.recents_max_task_stack_view_dim);
212        taskStackTopPaddingPx = res.getDimensionPixelSize(R.dimen.recents_stack_top_padding);
213
214        // Task view animation and styles
215        taskViewEnterFromHomeDelay =
216                res.getInteger(R.integer.recents_animate_task_enter_from_home_delay);
217        taskViewEnterFromHomeDuration =
218                res.getInteger(R.integer.recents_animate_task_enter_from_home_duration);
219        taskViewEnterFromHomeStaggerDelay =
220                res.getInteger(R.integer.recents_animate_task_enter_from_home_stagger_delay);
221        taskViewExitToHomeDuration =
222                res.getInteger(R.integer.recents_animate_task_exit_to_home_duration);
223        taskViewRemoveAnimDuration =
224                res.getInteger(R.integer.recents_animate_task_view_remove_duration);
225        taskViewRemoveAnimTranslationXPx =
226                res.getDimensionPixelSize(R.dimen.recents_task_view_remove_anim_translation_x);
227        taskViewRoundedCornerRadiusPx =
228                res.getDimensionPixelSize(R.dimen.recents_task_view_rounded_corners_radius);
229        taskViewHighlightPx = res.getDimensionPixelSize(R.dimen.recents_task_view_highlight);
230        taskViewTranslationZMinPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_min);
231        taskViewTranslationZMaxPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_max);
232        taskViewAffiliateGroupEnterOffsetPx =
233                res.getDimensionPixelSize(R.dimen.recents_task_view_affiliate_group_enter_offset);
234        TypedValue thumbnailAlphaValue = new TypedValue();
235        res.getValue(R.dimen.recents_task_view_thumbnail_alpha, thumbnailAlphaValue, true);
236        taskViewThumbnailAlpha = thumbnailAlphaValue.getFloat();
237
238        // Task bar colors
239        taskBarViewDefaultBackgroundColor =
240                res.getColor(R.color.recents_task_bar_default_background_color);
241        taskBarViewLightTextColor =
242                res.getColor(R.color.recents_task_bar_light_text_color);
243        taskBarViewDarkTextColor =
244                res.getColor(R.color.recents_task_bar_dark_text_color);
245        taskBarViewHighlightColor =
246                res.getColor(R.color.recents_task_bar_highlight_color);
247        TypedValue affMinAlphaPctValue = new TypedValue();
248        res.getValue(R.dimen.recents_task_affiliation_color_min_alpha_percentage, affMinAlphaPctValue, true);
249        taskBarViewAffiliationColorMinAlpha = affMinAlphaPctValue.getFloat();
250
251        // Task bar size & animations
252        taskBarHeight = res.getDimensionPixelSize(R.dimen.recents_task_bar_height);
253        taskBarEnterAnimDuration =
254                res.getInteger(R.integer.recents_animate_task_bar_enter_duration);
255        taskBarEnterAnimDelay =
256                res.getInteger(R.integer.recents_animate_task_bar_enter_delay);
257        taskBarExitAnimDuration =
258                res.getInteger(R.integer.recents_animate_task_bar_exit_duration);
259        taskBarDismissDozeDelaySeconds =
260                res.getInteger(R.integer.recents_task_bar_dismiss_delay_seconds);
261
262        // Lock to app
263        taskViewLockToAppButtonHeight =
264                res.getDimensionPixelSize(R.dimen.recents_task_view_lock_to_app_button_height);
265        taskViewLockToAppShortAnimDuration =
266                res.getInteger(R.integer.recents_animate_lock_to_app_button_short_duration);
267        taskViewLockToAppLongAnimDuration =
268                res.getInteger(R.integer.recents_animate_lock_to_app_button_long_duration);
269
270        // Nav bar scrim
271        navBarScrimEnterDuration =
272                res.getInteger(R.integer.recents_nav_bar_scrim_enter_duration);
273
274        // Misc
275        useHardwareLayers = res.getBoolean(R.bool.config_recents_use_hardware_layers);
276        altTabKeyDelay = res.getInteger(R.integer.recents_alt_tab_key_delay);
277    }
278
279    /** Updates the system insets */
280    public void updateSystemInsets(Rect insets) {
281        systemInsets.set(insets);
282    }
283
284    /** Updates the search bar app widget */
285    public void updateSearchBarAppWidgetId(Context context, int appWidgetId) {
286        searchBarAppWidgetId = appWidgetId;
287        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
288        settings.edit().putInt(Constants.Values.App.Key_SearchAppWidgetId,
289                appWidgetId).apply();
290    }
291
292    /** Updates the states that need to be re-read whenever we re-initialize. */
293    void updateOnReinitialize(Context context, SystemServicesProxy ssp) {
294        // Check if the developer options are enabled
295        developerOptionsEnabled = ssp.getGlobalSetting(context,
296                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED) != 0;
297        lockToAppEnabled = ssp.getSystemSetting(context,
298                Settings.System.LOCK_TO_APP_ENABLED) != 0;
299    }
300
301    /** Called when the configuration has changed, and we want to reset any configuration specific
302     * members. */
303    public void updateOnConfigurationChange() {
304        launchedWithAltTab = false;
305        launchedWithNoRecentTasks = false;
306        launchedFromAppWithThumbnail = false;
307        launchedFromAppWithScreenshot = false;
308        launchedFromHome = false;
309        launchedToTaskId = -1;
310    }
311
312    /** Returns whether the search bar app widget exists. */
313    public boolean hasSearchBarAppWidget() {
314        return searchBarAppWidgetId >= 0;
315    }
316
317    /** Returns whether the status bar scrim should be animated when shown for the first time. */
318    public boolean shouldAnimateStatusBarScrim() {
319        return launchedFromHome;
320    }
321
322    /** Returns whether the status bar scrim should be visible. */
323    public boolean hasStatusBarScrim() {
324        return !launchedWithNoRecentTasks;
325    }
326
327    /** Returns whether the nav bar scrim should be animated when shown for the first time. */
328    public boolean shouldAnimateNavBarScrim() {
329        return true;
330    }
331
332    /** Returns whether the nav bar scrim should be visible. */
333    public boolean hasNavBarScrim() {
334        // Only show the scrim if we have recent tasks, and if the nav bar is not transposed
335        return !launchedWithNoRecentTasks && (!hasTransposedNavBar || !isLandscape);
336    }
337
338    /** Returns whether the current layout is horizontal. */
339    public boolean hasHorizontalLayout() {
340        return isLandscape && hasTransposedSearchBar;
341    }
342
343    /**
344     * Returns the task stack bounds in the current orientation. These bounds do not account for
345     * the system insets.
346     */
347    public void getTaskStackBounds(int windowWidth, int windowHeight, int topInset, int rightInset,
348                                   Rect taskStackBounds) {
349        Rect searchBarBounds = new Rect();
350        getSearchBarBounds(windowWidth, windowHeight, topInset, searchBarBounds);
351        if (isLandscape && hasTransposedSearchBar) {
352            // In landscape, the search bar appears on the left, but we overlay it on top
353            taskStackBounds.set(0, topInset, windowWidth - rightInset, windowHeight);
354        } else {
355            // In portrait, the search bar appears on the top (which already has the inset)
356            taskStackBounds.set(0, searchBarBounds.bottom, windowWidth, windowHeight);
357        }
358    }
359
360    /**
361     * Returns the search bar bounds in the current orientation.  These bounds do not account for
362     * the system insets.
363     */
364    public void getSearchBarBounds(int windowWidth, int windowHeight, int topInset,
365                                   Rect searchBarSpaceBounds) {
366        // Return empty rects if search is not enabled
367        int searchBarSize = searchBarSpaceHeightPx;
368        if (!Constants.DebugFlags.App.EnableSearchLayout || !hasSearchBarAppWidget()) {
369            searchBarSize = 0;
370        }
371
372        if (isLandscape && hasTransposedSearchBar) {
373            // In landscape, the search bar appears on the left
374            searchBarSpaceBounds.set(0, topInset, searchBarSize, windowHeight);
375        } else {
376            // In portrait, the search bar appears on the top
377            searchBarSpaceBounds.set(0, topInset, windowWidth, topInset + searchBarSize);
378        }
379    }
380}
381