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path: root/quickstep/src/com/android/quickstep/util/LayoutUtils.java
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/*
 * Copyright (C) 2018 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.quickstep.util;

import android.content.Context;
import android.graphics.Rect;
import android.view.View;
import android.view.ViewGroup;

import com.android.launcher3.DeviceProfile;
import com.android.launcher3.touch.PagedOrientationHandler;
import com.android.quickstep.LauncherActivityInterface;
import com.android.quickstep.SysUINavigationMode;

public class LayoutUtils {

    /**
     * The height for the swipe up motion
     */
    public static float getDefaultSwipeHeight(Context context, DeviceProfile dp) {
        float swipeHeight = dp.allAppsCellHeightPx - dp.allAppsIconTextSizePx;
        if (SysUINavigationMode.getMode(context) == SysUINavigationMode.Mode.NO_BUTTON) {
            swipeHeight -= dp.getInsets().bottom;
        }
        return swipeHeight;
    }

    public static int getShelfTrackingDistance(Context context, DeviceProfile dp,
            PagedOrientationHandler orientationHandler) {
        // Track the bottom of the window.
        Rect taskSize = new Rect();
        LauncherActivityInterface.INSTANCE.calculateTaskSize(
                context, dp, taskSize, orientationHandler);
        return orientationHandler.getDistanceToBottomOfRect(dp, taskSize);
    }

    /**
     * Recursively sets view and all children enabled/disabled.
     * @param view Top most parent view to change.
     * @param enabled True = enable, False = disable.
     */
    public static void setViewEnabled(View view, boolean enabled) {
        view.setEnabled(enabled);
        if (view instanceof ViewGroup) {
            for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
                setViewEnabled(((ViewGroup) view).getChildAt(i), enabled);
            }
        }
    }
}