Merge "Add z-order regions for task child layers" into tm-qpr-dev am: 5d98a2db73 am: 2928c4b525 (8ec0b69d) · Commits · e / os / android_frameworks_base

core/java/android/window/TaskConstants.java

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+106 −0

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		/*
		* Copyright (C) 2022 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 android.window;

		import android.annotation.IntDef;

		/**
		* Holds constants related to task managements but not suitable in {@code TaskOrganizer}.
		* @hide
		*/
		public class TaskConstants {

		/**
		* Sizes of a z-order region assigned to child layers of task layers. Components are allowed to
		* use all values in [assigned value, assigned value + region size).
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_REGION_SIZE = 10000;

		/**
		* Indicates system responding to task drag resizing while app content isn't updated.
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_TASK_BACKGROUND = -3 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Provides solid color letterbox background or blur effect and dimming for the wallpaper
		* letterbox background. It also listens to touches for double tap gesture for repositioning
		* letterbox.
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_LETTERBOX_BACKGROUND =
		-2 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* When a unresizable app is moved in the different configuration, a restart button appears
		* allowing to adapt (~resize) app to the new configuration mocks.
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_SIZE_COMPAT_RESTART_BUTTON =
		TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Shown the first time an app is opened in size compat mode in landscape.
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_LETTERBOX_EDUCATION = 2 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Captions, window frames and resize handlers around task windows.
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_WINDOW_DECORATIONS = 3 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Overlays the task when going into PIP w/ gesture navigation.
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_RECENTS_ANIMATION_PIP_OVERLAY =
		4 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Allows other apps to add overlays on the task (i.e. game dashboard)
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_TASK_OVERLAY = 5 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Legacy machanism to force an activity to the top of the task (i.e. for work profile
		* comfirmation).
		* @hide
		*/
		public static final int TASK_CHILD_LAYER_TASK_OVERLAY_ACTIVITIES =
		6 * TASK_CHILD_LAYER_REGION_SIZE;

		/**
		* Z-orders of task child layers other than activities, task fragments and layers interleaved
		* with them, e.g. IME windows. [-10000, 10000) is reserved for these layers.
		* @hide
		*/
		@IntDef({
		TASK_CHILD_LAYER_TASK_BACKGROUND,
		TASK_CHILD_LAYER_LETTERBOX_BACKGROUND,
		TASK_CHILD_LAYER_SIZE_COMPAT_RESTART_BUTTON,
		TASK_CHILD_LAYER_LETTERBOX_EDUCATION,
		TASK_CHILD_LAYER_WINDOW_DECORATIONS,
		TASK_CHILD_LAYER_RECENTS_ANIMATION_PIP_OVERLAY,
		TASK_CHILD_LAYER_TASK_OVERLAY,
		TASK_CHILD_LAYER_TASK_OVERLAY_ACTIVITIES
		})
		public @interface TaskChildLayer {}
		}