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Diffstat (limited to 'quickstep/src/com/android/launcher3/taskbar/TaskbarThresholdUtils.java')
-rw-r--r--quickstep/src/com/android/launcher3/taskbar/TaskbarThresholdUtils.java87
1 files changed, 87 insertions, 0 deletions
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarThresholdUtils.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarThresholdUtils.java
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+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarThresholdUtils.java
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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);
+ }
+}