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1 /*
2  * Copyright (C) 2020 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 package com.android.launcher3.util;
17 
18 import android.content.SharedPreferences;
19 import android.util.ArrayMap;
20 
21 import androidx.annotation.StringDef;
22 
23 import com.android.launcher3.views.ActivityContext;
24 
25 import java.lang.annotation.Retention;
26 import java.lang.annotation.RetentionPolicy;
27 import java.util.Collections;
28 import java.util.Map;
29 
30 /**
31  * Stores and retrieves onboarding-related data via SharedPreferences.
32  *
33  * @param <T> Context which owns these preferences.
34  */
35 public class OnboardingPrefs<T extends ActivityContext> {
36 
37     public static final String HOME_BOUNCE_SEEN = "launcher.apps_view_shown";
38     public static final String HOME_BOUNCE_COUNT = "launcher.home_bounce_count";
39     public static final String HOTSEAT_DISCOVERY_TIP_COUNT = "launcher.hotseat_discovery_tip_count";
40     public static final String HOTSEAT_LONGPRESS_TIP_SEEN = "launcher.hotseat_longpress_tip_seen";
41     public static final String ALL_APPS_VISITED_COUNT = "launcher.all_apps_visited_count";
42     public static final String TASKBAR_EDU_TOOLTIP_STEP = "launcher.taskbar_edu_tooltip_step";
43     // When adding a new key, add it here as well, to be able to reset it from Developer Options.
44     public static final Map<String, String[]> ALL_PREF_KEYS = Map.of(
45             "All Apps Bounce", new String[] { HOME_BOUNCE_SEEN, HOME_BOUNCE_COUNT },
46             "Hybrid Hotseat Education", new String[] { HOTSEAT_DISCOVERY_TIP_COUNT,
47                     HOTSEAT_LONGPRESS_TIP_SEEN },
48             "Taskbar Education", new String[] { TASKBAR_EDU_TOOLTIP_STEP },
49             "All Apps Visited Count", new String[] {ALL_APPS_VISITED_COUNT}
50     );
51 
52     /**
53      * Events that either have happened or have not (booleans).
54      */
55     @StringDef(value = {
56             HOME_BOUNCE_SEEN,
57             HOTSEAT_LONGPRESS_TIP_SEEN,
58     })
59     @Retention(RetentionPolicy.SOURCE)
60     public @interface EventBoolKey {}
61 
62     /**
63      * Events that occur multiple times, which we count up to a max defined in {@link #MAX_COUNTS}.
64      */
65     @StringDef(value = {
66             HOME_BOUNCE_COUNT,
67             HOTSEAT_DISCOVERY_TIP_COUNT,
68             ALL_APPS_VISITED_COUNT,
69             TASKBAR_EDU_TOOLTIP_STEP,
70     })
71     @Retention(RetentionPolicy.SOURCE)
72     public @interface EventCountKey {}
73 
74     private static final Map<String, Integer> MAX_COUNTS;
75 
76     static {
77         Map<String, Integer> maxCounts = new ArrayMap<>(5);
maxCounts.put(HOME_BOUNCE_COUNT, 3)78         maxCounts.put(HOME_BOUNCE_COUNT, 3);
maxCounts.put(HOTSEAT_DISCOVERY_TIP_COUNT, 5)79         maxCounts.put(HOTSEAT_DISCOVERY_TIP_COUNT, 5);
maxCounts.put(ALL_APPS_VISITED_COUNT, 20)80         maxCounts.put(ALL_APPS_VISITED_COUNT, 20);
maxCounts.put(TASKBAR_EDU_TOOLTIP_STEP, 2)81         maxCounts.put(TASKBAR_EDU_TOOLTIP_STEP, 2);
82         MAX_COUNTS = Collections.unmodifiableMap(maxCounts);
83     }
84 
85     protected final T mLauncher;
86     protected final SharedPreferences mSharedPrefs;
87 
OnboardingPrefs(T launcher, SharedPreferences sharedPrefs)88     public OnboardingPrefs(T launcher, SharedPreferences sharedPrefs) {
89         mLauncher = launcher;
90         mSharedPrefs = sharedPrefs;
91     }
92 
93     /** @return The number of times we have seen the given event. */
getCount(@ventCountKey String key)94     public int getCount(@EventCountKey String key) {
95         return mSharedPrefs.getInt(key, 0);
96     }
97 
98     /** @return Whether we have seen this event enough times, as defined by {@link #MAX_COUNTS}. */
hasReachedMaxCount(@ventCountKey String eventKey)99     public boolean hasReachedMaxCount(@EventCountKey String eventKey) {
100         return hasReachedMaxCount(getCount(eventKey), eventKey);
101     }
102 
hasReachedMaxCount(int count, @EventCountKey String eventKey)103     private boolean hasReachedMaxCount(int count, @EventCountKey String eventKey) {
104         return count >= MAX_COUNTS.get(eventKey);
105     }
106 
107     /** @return Whether we have seen the given event. */
getBoolean(@ventBoolKey String key)108     public boolean getBoolean(@EventBoolKey String key) {
109         return mSharedPrefs.getBoolean(key, false);
110     }
111 
112     /**
113      * Marks on-boarding preference boolean at true
114      */
markChecked(String flag)115     public void markChecked(String flag) {
116         mSharedPrefs.edit().putBoolean(flag, true).apply();
117     }
118 
119     /**
120      * Add 1 to the given event count, if we haven't already reached the max count.
121      *
122      * @return Whether we have now reached the max count.
123      */
incrementEventCount(@ventCountKey String eventKey)124     public boolean incrementEventCount(@EventCountKey String eventKey) {
125         int count = getCount(eventKey);
126         if (hasReachedMaxCount(count, eventKey)) {
127             return true;
128         }
129         count++;
130         mSharedPrefs.edit().putInt(eventKey, count).apply();
131         return hasReachedMaxCount(count, eventKey);
132     }
133 
134     /**
135      * Sets the event count to the given value.
136      *
137      * @return Whether we have now reached the max count.
138      */
setEventCount(int count, @EventCountKey String eventKey)139     public boolean setEventCount(int count, @EventCountKey String eventKey) {
140         mSharedPrefs.edit().putInt(eventKey, count).apply();
141         return hasReachedMaxCount(count, eventKey);
142     }
143 }
144