libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitScreenConstants.java

/*
 * Copyright (C) 2021 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.wm.shell.common.split;

import static android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD;
import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
import static android.app.WindowConfiguration.WINDOWING_MODE_MULTI_WINDOW;
import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;

import android.annotation.IntDef;

/** Helper utility class of methods and constants that are available to be imported in Launcher. */
public class SplitScreenConstants {

    /**
     * Split position isn't specified normally meaning to use what ever it is currently set to.
     */
    public static final int SPLIT_POSITION_UNDEFINED = -1;

    /**
     * Specifies that a split is positioned at the top half of the screen if
     * in portrait mode or at the left half of the screen if in landscape mode.
     */
    public static final int SPLIT_POSITION_TOP_OR_LEFT = 0;

    /**
     * Specifies that a split is positioned at the bottom half of the screen if
     * in portrait mode or at the right half of the screen if in landscape mode.
     */
    public static final int SPLIT_POSITION_BOTTOM_OR_RIGHT = 1;

    @IntDef(prefix = {"SPLIT_POSITION_"}, value = {
            SPLIT_POSITION_UNDEFINED,
            SPLIT_POSITION_TOP_OR_LEFT,
            SPLIT_POSITION_BOTTOM_OR_RIGHT
    })
    public @interface SplitPosition {
    }

    public static final int[] CONTROLLED_ACTIVITY_TYPES = {ACTIVITY_TYPE_STANDARD};
    public static final int[] CONTROLLED_WINDOWING_MODES =
            {WINDOWING_MODE_FULLSCREEN, WINDOWING_MODE_UNDEFINED};
    public static final int[] CONTROLLED_WINDOWING_MODES_WHEN_ACTIVE =
            {WINDOWING_MODE_FULLSCREEN, WINDOWING_MODE_UNDEFINED, WINDOWING_MODE_MULTI_WINDOW};
}