1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.launcher3.uioverrides.states; 17 18 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_BACKGROUND; 19 20 import android.graphics.Color; 21 22 import com.android.launcher3.DeviceProfile; 23 import com.android.launcher3.Launcher; 24 import com.android.launcher3.R; 25 import com.android.launcher3.util.Themes; 26 27 /** 28 * State to indicate we are about to launch a recent task. Note that this state is only used when 29 * quick switching from launcher; quick switching from an app uses LauncherSwipeHandler. 30 * @see com.android.quickstep.GestureState.GestureEndTarget#NEW_TASK 31 */ 32 public class QuickSwitchState extends BackgroundAppState { 33 QuickSwitchState(int id)34 public QuickSwitchState(int id) { 35 super(id, LAUNCHER_STATE_BACKGROUND); 36 } 37 38 @Override getWorkspaceScaleAndTranslation(Launcher launcher)39 public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) { 40 float shiftRange = launcher.getAllAppsController().getShiftRange(); 41 float shiftProgress = getVerticalProgress(launcher) - NORMAL.getVerticalProgress(launcher); 42 float translationY = shiftProgress * shiftRange; 43 return new ScaleAndTranslation(0.9f, 0, translationY); 44 } 45 46 @Override getWorkspaceScrimColor(Launcher launcher)47 public int getWorkspaceScrimColor(Launcher launcher) { 48 if (launcher.areDesktopTasksVisible()) { 49 // No scrim while desktop tasks are visible 50 return Color.TRANSPARENT; 51 } 52 DeviceProfile dp = launcher.getDeviceProfile(); 53 if (dp.isTaskbarPresentInApps) { 54 return launcher.getColor(R.color.taskbar_background); 55 } 56 return Themes.getAttrColor(launcher, R.attr.overviewScrimColor); 57 } 58 59 @Override getVerticalProgress(Launcher launcher)60 public float getVerticalProgress(Launcher launcher) { 61 // Don't move all apps shelf while quick-switching (just let it fade). 62 return 1f; 63 } 64 65 @Override getVisibleElements(Launcher launcher)66 public int getVisibleElements(Launcher launcher) { 67 return NONE; 68 } 69 70 @Override isTaskbarStashed(Launcher launcher)71 public boolean isTaskbarStashed(Launcher launcher) { 72 return !launcher.getDeviceProfile().isTaskbarPresentInApps; 73 } 74 75 @Override isTaskbarAlignedWithHotseat(Launcher launcher)76 public boolean isTaskbarAlignedWithHotseat(Launcher launcher) { 77 return false; 78 } 79 } 80