1 /* 2 * Copyright (C) 2018 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.touch; 17 18 import static android.view.View.INVISIBLE; 19 import static android.view.View.VISIBLE; 20 21 import static com.android.launcher3.LauncherState.ALL_APPS; 22 import static com.android.launcher3.LauncherState.NORMAL; 23 import static com.android.launcher3.LauncherState.OVERVIEW; 24 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_ITEM_LONG_PRESSED; 25 26 import android.view.View; 27 import android.view.View.OnLongClickListener; 28 29 import com.android.launcher3.CellLayout; 30 import com.android.launcher3.DropTarget; 31 import com.android.launcher3.Launcher; 32 import com.android.launcher3.dragndrop.DragController; 33 import com.android.launcher3.dragndrop.DragOptions; 34 import com.android.launcher3.folder.Folder; 35 import com.android.launcher3.logging.StatsLogManager.StatsLogger; 36 import com.android.launcher3.model.data.ItemInfo; 37 import com.android.launcher3.testing.TestLogging; 38 import com.android.launcher3.testing.shared.TestProtocol; 39 import com.android.launcher3.views.BubbleTextHolder; 40 import com.android.launcher3.widget.LauncherAppWidgetHostView; 41 42 /** 43 * Class to handle long-clicks on workspace items and start drag as a result. 44 */ 45 public class ItemLongClickListener { 46 47 public static final OnLongClickListener INSTANCE_WORKSPACE = 48 ItemLongClickListener::onWorkspaceItemLongClick; 49 50 public static final OnLongClickListener INSTANCE_ALL_APPS = 51 ItemLongClickListener::onAllAppsItemLongClick; 52 onWorkspaceItemLongClick(View v)53 private static boolean onWorkspaceItemLongClick(View v) { 54 if (v instanceof LauncherAppWidgetHostView) { 55 TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "Widgets.onLongClick"); 56 } else { 57 TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "onWorkspaceItemLongClick"); 58 } 59 Launcher launcher = Launcher.getLauncher(v.getContext()); 60 if (!canStartDrag(launcher)) return false; 61 if (!launcher.isInState(NORMAL) && !launcher.isInState(OVERVIEW)) return false; 62 if (!(v.getTag() instanceof ItemInfo)) return false; 63 64 launcher.setWaitingForResult(null); 65 beginDrag(v, launcher, (ItemInfo) v.getTag(), launcher.getDefaultWorkspaceDragOptions()); 66 return true; 67 } 68 beginDrag(View v, Launcher launcher, ItemInfo info, DragOptions dragOptions)69 public static void beginDrag(View v, Launcher launcher, ItemInfo info, 70 DragOptions dragOptions) { 71 if (info.container >= 0) { 72 Folder folder = Folder.getOpen(launcher); 73 if (folder != null) { 74 if (!folder.getIconsInReadingOrder().contains(v)) { 75 folder.close(true); 76 } else { 77 folder.startDrag(v, dragOptions); 78 return; 79 } 80 } 81 } 82 83 CellLayout.CellInfo longClickCellInfo = new CellLayout.CellInfo(v, info, 84 launcher.getCellPosMapper().mapModelToPresenter(info)); 85 launcher.getWorkspace().startDrag(longClickCellInfo, dragOptions); 86 } 87 onAllAppsItemLongClick(View view)88 private static boolean onAllAppsItemLongClick(View view) { 89 TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "onAllAppsItemLongClick"); 90 view.cancelLongPress(); 91 View v = (view instanceof BubbleTextHolder) 92 ? ((BubbleTextHolder) view).getBubbleText() 93 : view; 94 Launcher launcher = Launcher.getLauncher(v.getContext()); 95 if (!canStartDrag(launcher)) return false; 96 // When we have exited all apps or are in transition, disregard long clicks 97 if (!launcher.isInState(ALL_APPS) && !launcher.isInState(OVERVIEW)) return false; 98 if (launcher.getWorkspace().isSwitchingState()) return false; 99 100 StatsLogger logger = launcher.getStatsLogManager().logger(); 101 if (v.getTag() instanceof ItemInfo) { 102 logger.withItemInfo((ItemInfo) v.getTag()); 103 } 104 logger.log(LAUNCHER_ALLAPPS_ITEM_LONG_PRESSED); 105 106 // Start the drag 107 final DragController dragController = launcher.getDragController(); 108 dragController.addDragListener(new DragController.DragListener() { 109 @Override 110 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 111 v.setVisibility(INVISIBLE); 112 } 113 114 @Override 115 public void onDragEnd() { 116 v.setVisibility(VISIBLE); 117 dragController.removeDragListener(this); 118 } 119 }); 120 121 launcher.getWorkspace().beginDragShared(v, launcher.getAppsView(), new DragOptions()); 122 return false; 123 } 124 canStartDrag(Launcher launcher)125 public static boolean canStartDrag(Launcher launcher) { 126 if (launcher == null) { 127 return false; 128 } 129 // We prevent dragging when we are loading the workspace as it is possible to pick up a view 130 // that is subsequently removed from the workspace in startBinding(). 131 if (launcher.isWorkspaceLocked()) return false; 132 // Return early if an item is already being dragged (e.g. when long-pressing two shortcuts) 133 if (launcher.getDragController().isDragging()) return false; 134 135 return true; 136 } 137 } 138