Merge "Migrate Remove Animations preference to Catalyst backend." into main

src/com/android/settings/accessibility/ColorAndMotionScreen.kt

@@ -37,7 +37,9 @@ class ColorAndMotionScreen : PreferenceScreenCreator {
 
     override fun fragmentClass() = ColorAndMotionFragment::class.java
 
-    override fun getPreferenceHierarchy(context: Context) = preferenceHierarchy(this) {}
+    override fun getPreferenceHierarchy(context: Context) = preferenceHierarchy(this) {
+        +RemoveAnimationsPreference();
+    }
 
     companion object {
         const val KEY = "accessibility_color_and_motion"

src/com/android/settings/accessibility/DisableAnimationsPreferenceController.java

@@ -37,6 +37,7 @@ import com.android.settingslib.core.lifecycle.events.OnStop;
 import java.util.Arrays;
 import java.util.List;
 
+// LINT.IfChange
 /** A toggle preference controller for disable animations. */
 public class DisableAnimationsPreferenceController extends TogglePreferenceController implements
         LifecycleObserver, OnStart, OnStop {
@@ -123,3 +124,4 @@ public class DisableAnimationsPreferenceController extends TogglePreferenceContr
         mContentResolver.unregisterContentObserver(mSettingsContentObserver);
     }
 }
+// LINT.ThenChange(src/com/android/settings/accessibility/RemoveAnimationsPreference.kt)

src/com/android/settings/accessibility/RemoveAnimationsPreference.kt

@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility
+
+import android.annotation.DrawableRes
+import android.content.Context
+import android.provider.Settings
+import com.android.settings.R
+import com.android.settingslib.datastore.HandlerExecutor
+import com.android.settingslib.datastore.KeyValueStore
+import com.android.settingslib.datastore.KeyedObserver
+import com.android.settingslib.datastore.NoOpKeyedObservable
+import com.android.settingslib.datastore.SettingsGlobalStore
+import com.android.settingslib.metadata.PreferenceLifecycleContext
+import com.android.settingslib.metadata.PreferenceLifecycleProvider
+import com.android.settingslib.metadata.SwitchPreference
+import com.android.settingslib.preference.SwitchPreferenceBinding
+
+class RemoveAnimationsPreference :
+    SwitchPreference(
+        KEY,
+        R.string.accessibility_disable_animations,
+        R.string.accessibility_disable_animations_summary
+    ),
+    SwitchPreferenceBinding,
+    PreferenceLifecycleProvider {
+
+    private var mSettingsKeyedObserver: KeyedObserver<String?>? = null
+
+    override val icon: Int
+        @DrawableRes get() = R.drawable.ic_accessibility_animation
+
+    override fun onStart(context: PreferenceLifecycleContext) {
+        mSettingsKeyedObserver = object : KeyedObserver<String?> {
+            override fun onKeyChanged(key: String?, reason: Int) {
+                context.notifyPreferenceChange(KEY)
+            }
+        }
+        mSettingsKeyedObserver?.let {
+            for (key in TOGGLE_ANIMATION_KEYS) {
+                SettingsGlobalStore.get(context).addObserver(key, it, HandlerExecutor.main)
+            }
+        }
+    }
+
+    override fun onStop(context: PreferenceLifecycleContext) {
+        mSettingsKeyedObserver?.let {
+            SettingsGlobalStore.get(context).removeObserver(it)
+            mSettingsKeyedObserver = null
+        }
+    }
+
+    override fun storage(context: Context): KeyValueStore = RemoveAnimationsStorage(context)
+
+    private class RemoveAnimationsStorage(private val context: Context) :
+        NoOpKeyedObservable<String>(), KeyValueStore {
+        override fun contains(key: String) = key == KEY
+
+        override fun <T : Any> getValue(key: String, valueType: Class<T>) =
+            when {
+                key == KEY && valueType == Boolean::class.javaObjectType ->
+                    !isAnimationEnabled(context) as T
+
+                else -> null
+            }
+
+        override fun <T : Any> setValue(key: String, valueType: Class<T>, value: T?) {
+            if (key == KEY && value is Boolean) {
+                setAnimationEnabled(context, !value)
+            }
+        }
+    }
+
+    companion object {
+        // This KEY must match the key used in accessibility_color_and_motion.xml for this
+        // preference, at least until the entire screen is migrated to Catalyst and that XML
+        // is deleted. Use any key from the set of 3 toggle animation keys.
+        const val KEY = Settings.Global.ANIMATOR_DURATION_SCALE
+
+        const val ANIMATION_ON_VALUE: Float = 1.0f
+        const val ANIMATION_OFF_VALUE: Float = 0.0f
+
+        val TOGGLE_ANIMATION_KEYS: List<String> = listOf(
+            Settings.Global.WINDOW_ANIMATION_SCALE, Settings.Global.TRANSITION_ANIMATION_SCALE,
+            Settings.Global.ANIMATOR_DURATION_SCALE
+        )
+
+        fun isAnimationEnabled(context: Context): Boolean {
+            // This pref treats animation as enabled if *any* of the animation types are enabled.
+            for (animationSetting in TOGGLE_ANIMATION_KEYS) {
+                val animationValue: Float? =
+                    SettingsGlobalStore.get(context).getFloat(animationSetting)
+                // Animation is enabled by default, so treat null as enabled.
+                if (animationValue == null || animationValue > ANIMATION_OFF_VALUE) {
+                    return true
+                }
+            }
+            return false
+        }
+
+        fun setAnimationEnabled(context: Context, enabled: Boolean) {
+            val value = if (enabled) ANIMATION_ON_VALUE else ANIMATION_OFF_VALUE;
+            for (animationSetting in TOGGLE_ANIMATION_KEYS) {
+                SettingsGlobalStore.get(context).setFloat(animationSetting, value)
+            }
+        }
+    }
+}