1 /* 2 * Copyright (C) 2020 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_OVERVIEW; 19 20 import android.content.Context; 21 import android.graphics.Point; 22 import android.graphics.Rect; 23 24 import com.android.launcher3.BaseDraggingActivity; 25 import com.android.launcher3.Launcher; 26 import com.android.launcher3.LauncherState; 27 import com.android.quickstep.views.RecentsView; 28 29 /** 30 * An Overview state that shows the current task in a modal fashion. Modal state is where the 31 * current task is shown on its own without other tasks visible. 32 */ 33 public class OverviewModalTaskState extends OverviewState { 34 35 private static final int STATE_FLAGS = 36 FLAG_DISABLE_RESTORE | FLAG_OVERVIEW_UI | FLAG_WORKSPACE_INACCESSIBLE; 37 OverviewModalTaskState(int id)38 public OverviewModalTaskState(int id) { 39 super(id, LAUNCHER_STATE_OVERVIEW, STATE_FLAGS); 40 } 41 42 @Override getTransitionDuration(Context launcher)43 public int getTransitionDuration(Context launcher) { 44 return 300; 45 } 46 47 @Override getVisibleElements(Launcher launcher)48 public int getVisibleElements(Launcher launcher) { 49 return OVERVIEW_ACTIONS | CLEAR_ALL_BUTTON; 50 } 51 52 @Override getOverviewScaleAndOffset(Launcher launcher)53 public float[] getOverviewScaleAndOffset(Launcher launcher) { 54 return getOverviewScaleAndOffsetForModalState(launcher); 55 } 56 57 @Override getOverviewModalness()58 public float getOverviewModalness() { 59 return 1.0f; 60 } 61 62 @Override onBackPressed(Launcher launcher)63 public void onBackPressed(Launcher launcher) { 64 launcher.getStateManager().goToState(LauncherState.OVERVIEW); 65 RecentsView recentsView = launcher.<RecentsView>getOverviewPanel(); 66 if (recentsView != null) { 67 recentsView.resetModalVisuals(); 68 } else { 69 super.onBackPressed(launcher); 70 } 71 } 72 getOverviewScaleAndOffsetForModalState(BaseDraggingActivity activity)73 public static float[] getOverviewScaleAndOffsetForModalState(BaseDraggingActivity activity) { 74 Point taskSize = activity.<RecentsView>getOverviewPanel().getSelectedTaskSize(); 75 Rect modalTaskSize = new Rect(); 76 activity.<RecentsView>getOverviewPanel().getModalTaskSize(modalTaskSize); 77 78 float scale = Math.min((float) modalTaskSize.height() / taskSize.y, 79 (float) modalTaskSize.width() / taskSize.x); 80 81 return new float[] {scale, NO_OFFSET}; 82 } 83 } 84