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 17 package com.android.intentresolver.chooser; 18 19 import android.app.Activity; 20 import android.content.Intent; 21 import android.os.Bundle; 22 import android.os.UserHandle; 23 24 import androidx.annotation.Nullable; 25 26 import java.util.ArrayList; 27 import java.util.Collections; 28 import java.util.List; 29 30 /** 31 * Represents a "stack" of chooser targets for various activities within the same component. 32 */ 33 public class MultiDisplayResolveInfo extends DisplayResolveInfo { 34 35 final ArrayList<DisplayResolveInfo> mTargetInfos; 36 37 // Index of selected target 38 private int mSelected = -1; 39 40 /** 41 * @param targetInfos A list of targets in this stack. The first item is treated as the 42 * "representative" that provides the main icon, title, etc. 43 */ newMultiDisplayResolveInfo( List<DisplayResolveInfo> targetInfos)44 public static MultiDisplayResolveInfo newMultiDisplayResolveInfo( 45 List<DisplayResolveInfo> targetInfos) { 46 return new MultiDisplayResolveInfo(targetInfos); 47 } 48 49 /** 50 * @param targetInfos A list of targets in this stack. The first item is treated as the 51 * "representative" that provides the main icon, title, etc. 52 */ MultiDisplayResolveInfo(List<DisplayResolveInfo> targetInfos)53 private MultiDisplayResolveInfo(List<DisplayResolveInfo> targetInfos) { 54 super(targetInfos.get(0)); 55 mTargetInfos = new ArrayList<>(targetInfos); 56 } 57 58 @Override isMultiDisplayResolveInfo()59 public final boolean isMultiDisplayResolveInfo() { 60 return true; 61 } 62 63 @Override getExtendedInfo()64 public CharSequence getExtendedInfo() { 65 // Never show subtitle for stacked apps 66 return null; 67 } 68 69 /** 70 * List of all {@link DisplayResolveInfo}s included in this target. 71 * TODO: provide as a generic {@code List<DisplayResolveInfo>} once 72 * {@link com.android.intentresolver.ChooserActivity} stops requiring the signature to match 73 * that of the other "lists" it builds up. 74 */ 75 @Override getAllDisplayTargets()76 public ArrayList<DisplayResolveInfo> getAllDisplayTargets() { 77 return mTargetInfos; 78 } 79 setSelected(int selected)80 public void setSelected(int selected) { 81 mSelected = selected; 82 } 83 84 /** 85 * Return selected target. 86 */ getSelectedTarget()87 public DisplayResolveInfo getSelectedTarget() { 88 return hasSelected() ? mTargetInfos.get(mSelected) : null; 89 } 90 91 /** 92 * Whether or not the user has selected a specific target for this MultiInfo. 93 */ hasSelected()94 public boolean hasSelected() { 95 return mSelected >= 0; 96 } 97 98 @Override 99 @Nullable tryToCloneWithAppliedRefinement(Intent proposedRefinement)100 public MultiDisplayResolveInfo tryToCloneWithAppliedRefinement(Intent proposedRefinement) { 101 final int size = mTargetInfos.size(); 102 ArrayList<DisplayResolveInfo> targetInfos = new ArrayList<>(size); 103 for (int i = 0; i < size; i++) { 104 DisplayResolveInfo target = mTargetInfos.get(i); 105 DisplayResolveInfo targetClone = (i == mSelected) 106 ? target.tryToCloneWithAppliedRefinement(proposedRefinement) 107 : new DisplayResolveInfo(target); 108 if (targetClone == null) { 109 return null; 110 } 111 targetInfos.add(targetClone); 112 } 113 MultiDisplayResolveInfo clone = new MultiDisplayResolveInfo(targetInfos); 114 clone.mSelected = mSelected; 115 return clone; 116 } 117 118 @Override startAsCaller(Activity activity, Bundle options, int userId)119 public boolean startAsCaller(Activity activity, Bundle options, int userId) { 120 return mTargetInfos.get(mSelected).startAsCaller(activity, options, userId); 121 } 122 123 @Override startAsUser(Activity activity, Bundle options, UserHandle user)124 public boolean startAsUser(Activity activity, Bundle options, UserHandle user) { 125 return mTargetInfos.get(mSelected).startAsUser(activity, options, user); 126 } 127 128 @Override getTargetIntent()129 public Intent getTargetIntent() { 130 return mTargetInfos.get(mSelected).getTargetIntent(); 131 } 132 133 @Override getAllSourceIntents()134 public List<Intent> getAllSourceIntents() { 135 return hasSelected() 136 ? mTargetInfos.get(mSelected).getAllSourceIntents() 137 : Collections.emptyList(); 138 } 139 } 140