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| -rw-r--r-- | core/java/android/window/TaskConstants.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/core/java/android/window/TaskConstants.java b/core/java/android/window/TaskConstants.java new file mode 100644 index 000000000000..c40384027adf --- /dev/null +++ b/core/java/android/window/TaskConstants.java @@ -0,0 +1,106 @@ +/* + * 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 {} +} |