1 /* 2 * Copyright (C) 2016 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.systemui.shortcut; 18 19 import static android.app.ActivityTaskManager.SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT; 20 import static android.app.ActivityTaskManager.SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT; 21 22 import android.content.res.Configuration; 23 import android.os.RemoteException; 24 import android.util.Log; 25 import android.view.IWindowManager; 26 import android.view.KeyEvent; 27 import android.view.WindowManager; 28 import android.view.WindowManagerGlobal; 29 30 import com.android.internal.policy.DividerSnapAlgorithm; 31 import com.android.systemui.SystemUI; 32 import com.android.systemui.recents.Recents; 33 import com.android.systemui.stackdivider.Divider; 34 import com.android.systemui.stackdivider.DividerView; 35 36 /** 37 * Dispatches shortcut to System UI components 38 */ 39 public class ShortcutKeyDispatcher extends SystemUI 40 implements ShortcutKeyServiceProxy.Callbacks { 41 42 private static final String TAG = "ShortcutKeyDispatcher"; 43 44 private ShortcutKeyServiceProxy mShortcutKeyServiceProxy = new ShortcutKeyServiceProxy(this); 45 private IWindowManager mWindowManagerService = WindowManagerGlobal.getWindowManagerService(); 46 47 protected final long META_MASK = ((long) KeyEvent.META_META_ON) << Integer.SIZE; 48 protected final long ALT_MASK = ((long) KeyEvent.META_ALT_ON) << Integer.SIZE; 49 protected final long CTRL_MASK = ((long) KeyEvent.META_CTRL_ON) << Integer.SIZE; 50 protected final long SHIFT_MASK = ((long) KeyEvent.META_SHIFT_ON) << Integer.SIZE; 51 52 protected final long SC_DOCK_LEFT = META_MASK | KeyEvent.KEYCODE_LEFT_BRACKET; 53 protected final long SC_DOCK_RIGHT = META_MASK | KeyEvent.KEYCODE_RIGHT_BRACKET; 54 55 /** 56 * Registers a shortcut key to window manager. 57 * @param shortcutCode packed representation of shortcut key code and meta information 58 */ registerShortcutKey(long shortcutCode)59 public void registerShortcutKey(long shortcutCode) { 60 try { 61 mWindowManagerService.registerShortcutKey(shortcutCode, mShortcutKeyServiceProxy); 62 } catch (RemoteException e) { 63 // Do nothing 64 } 65 } 66 67 @Override onShortcutKeyPressed(long shortcutCode)68 public void onShortcutKeyPressed(long shortcutCode) { 69 int orientation = mContext.getResources().getConfiguration().orientation; 70 if ((shortcutCode == SC_DOCK_LEFT || shortcutCode == SC_DOCK_RIGHT) 71 && orientation == Configuration.ORIENTATION_LANDSCAPE) { 72 handleDockKey(shortcutCode); 73 } 74 } 75 76 @Override start()77 public void start() { 78 registerShortcutKey(SC_DOCK_LEFT); 79 registerShortcutKey(SC_DOCK_RIGHT); 80 } 81 handleDockKey(long shortcutCode)82 private void handleDockKey(long shortcutCode) { 83 try { 84 int dockSide = mWindowManagerService.getDockedStackSide(); 85 if (dockSide == WindowManager.DOCKED_INVALID) { 86 // Split the screen 87 Recents recents = getComponent(Recents.class); 88 recents.splitPrimaryTask((shortcutCode == SC_DOCK_LEFT) 89 ? SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT 90 : SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT, null, -1); 91 } else { 92 // If there is already a docked window, we respond by resizing the docking pane. 93 DividerView dividerView = getComponent(Divider.class).getView(); 94 DividerSnapAlgorithm snapAlgorithm = dividerView.getSnapAlgorithm(); 95 int dividerPosition = dividerView.getCurrentPosition(); 96 DividerSnapAlgorithm.SnapTarget currentTarget = 97 snapAlgorithm.calculateNonDismissingSnapTarget(dividerPosition); 98 DividerSnapAlgorithm.SnapTarget target = (shortcutCode == SC_DOCK_LEFT) 99 ? snapAlgorithm.getPreviousTarget(currentTarget) 100 : snapAlgorithm.getNextTarget(currentTarget); 101 dividerView.startDragging(true /* animate */, false /* touching */); 102 dividerView.stopDragging(target.position, 0f, false /* avoidDismissStart */, 103 true /* logMetrics */); 104 } 105 } catch (RemoteException e) { 106 Log.e(TAG, "handleDockKey() failed."); 107 } 108 } 109 } 110