1 /* 2 * Copyright (C) 2015 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.stackdivider; 18 19 import android.content.Context; 20 import android.graphics.PixelFormat; 21 import android.os.Binder; 22 import android.view.View; 23 import android.view.WindowManager; 24 25 import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE; 26 import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; 27 import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL; 28 import static android.view.WindowManager.LayoutParams.FLAG_SLIPPERY; 29 import static android.view.WindowManager.LayoutParams.FLAG_SPLIT_TOUCH; 30 import static android.view.WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH; 31 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_NO_MOVE_ANIMATION; 32 import static android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER; 33 34 /** 35 * Manages the window parameters of the docked stack divider. 36 */ 37 public class DividerWindowManager { 38 39 private static final String WINDOW_TITLE = "DockedStackDivider"; 40 41 private final WindowManager mWindowManager; 42 private WindowManager.LayoutParams mLp; 43 private View mView; 44 DividerWindowManager(Context ctx)45 public DividerWindowManager(Context ctx) { 46 mWindowManager = ctx.getSystemService(WindowManager.class); 47 } 48 add(View view, int width, int height)49 public void add(View view, int width, int height) { 50 mLp = new WindowManager.LayoutParams( 51 width, height, TYPE_DOCK_DIVIDER, 52 FLAG_NOT_FOCUSABLE | FLAG_NOT_TOUCH_MODAL 53 | FLAG_WATCH_OUTSIDE_TOUCH | FLAG_SPLIT_TOUCH | FLAG_SLIPPERY, 54 PixelFormat.TRANSLUCENT); 55 mLp.token = new Binder(); 56 mLp.setTitle(WINDOW_TITLE); 57 mLp.privateFlags |= PRIVATE_FLAG_NO_MOVE_ANIMATION; 58 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN 59 | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION 60 | View.SYSTEM_UI_FLAG_LAYOUT_STABLE); 61 mWindowManager.addView(view, mLp); 62 mView = view; 63 } 64 remove()65 public void remove() { 66 if (mView != null) { 67 mWindowManager.removeView(mView); 68 } 69 mView = null; 70 } 71 setSlippery(boolean slippery)72 public void setSlippery(boolean slippery) { 73 boolean changed = false; 74 if (slippery && (mLp.flags & FLAG_SLIPPERY) == 0) { 75 mLp.flags |= FLAG_SLIPPERY; 76 changed = true; 77 } else if (!slippery && (mLp.flags & FLAG_SLIPPERY) != 0) { 78 mLp.flags &= ~FLAG_SLIPPERY; 79 changed = true; 80 } 81 if (changed) { 82 mWindowManager.updateViewLayout(mView, mLp); 83 } 84 } 85 setTouchable(boolean touchable)86 public void setTouchable(boolean touchable) { 87 boolean changed = false; 88 if (!touchable && (mLp.flags & FLAG_NOT_TOUCHABLE) == 0) { 89 mLp.flags |= FLAG_NOT_TOUCHABLE; 90 changed = true; 91 } else if (touchable && (mLp.flags & FLAG_NOT_TOUCHABLE) != 0) { 92 mLp.flags &= ~FLAG_NOT_TOUCHABLE; 93 changed = true; 94 } 95 if (changed) { 96 mWindowManager.updateViewLayout(mView, mLp); 97 } 98 } 99 } 100