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/*
* Copyright (C) 2023 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.launcher3.taskbar;
import static com.android.launcher3.Utilities.dpToPx;
import static com.android.launcher3.Utilities.dpiFromPx;
import android.content.res.Resources;
import android.util.DisplayMetrics;
import androidx.core.content.res.ResourcesCompat;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.R;
import com.android.launcher3.config.FeatureFlags;
/**
* Utility class that contains the different taskbar thresholds logic.
*/
public class TaskbarThresholdUtils {
// We divide the screen into this many parts, and use the result to scale the thresholds to
// any size device. Note that this value was calculated arbitrarily by using two tablet devices
// as data points.
private static final float SCREEN_UNITS = 1 / 80f;
private static int getThreshold(Resources r, DeviceProfile dp, int thresholdDimen,
int multiplierDimen) {
if (!FeatureFlags.ENABLE_DYNAMIC_TASKBAR_THRESHOLDS.get()) {
return r.getDimensionPixelSize(thresholdDimen);
}
float landscapeScreenHeight = dp.isLandscape ? dp.heightPx : dp.widthPx;
float screenPart = (landscapeScreenHeight * SCREEN_UNITS);
float defaultDp = dpiFromPx(screenPart, DisplayMetrics.DENSITY_DEVICE_STABLE);
float thisDp = dpToPx(defaultDp);
float multiplier = ResourcesCompat.getFloat(r, multiplierDimen);
float value = (thisDp) * multiplier;
return Math.round(value);
}
/**
* Returns the threshold that determines if we should show taskbar.
*/
public static int getFromNavThreshold(Resources r, DeviceProfile dp) {
return getThreshold(r, dp, R.dimen.taskbar_from_nav_threshold,
R.dimen.taskbar_nav_threshold_mult);
}
/**
* Returns the threshold that we start moving the app window.
*/
public static int getAppWindowThreshold(Resources r, DeviceProfile dp) {
return getThreshold(r, dp, R.dimen.taskbar_app_window_threshold,
R.dimen.taskbar_app_window_threshold_mult);
}
/**
* Returns the threshold for whether we land in home or overview.
*/
public static int getHomeOverviewThreshold(Resources r, DeviceProfile dp) {
return getThreshold(r, dp, R.dimen.taskbar_home_overview_threshold,
R.dimen.taskbar_home_overview_threshold_mult);
}
/**
* Returns the threshold that we use to allow swipe to catch up to finger.
*/
public static int getCatchUpThreshold(Resources r, DeviceProfile dp) {
return getThreshold(r, dp, R.dimen.taskbar_catch_up_threshold,
R.dimen.taskbar_catch_up_threshold_mult);
}
}
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