1 /* 2 * Copyright (C) 2011 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.server.wm; 18 19 import android.os.Looper; 20 import android.os.Process; 21 import android.view.Display; 22 import android.view.InputChannel; 23 import android.view.InputEventReceiver; 24 import android.view.WindowManager; 25 import android.view.WindowManagerPolicy; 26 27 import com.android.server.input.InputApplicationHandle; 28 import com.android.server.input.InputWindowHandle; 29 30 public final class InputConsumerImpl implements WindowManagerPolicy.InputConsumer { 31 final WindowManagerService mService; 32 final InputChannel mServerChannel, mClientChannel; 33 final InputApplicationHandle mApplicationHandle; 34 final InputWindowHandle mWindowHandle; 35 final InputEventReceiver mInputEventReceiver; 36 final int mWindowLayer; 37 38 public InputConsumerImpl(WindowManagerService service, Looper looper, 39 InputEventReceiver.Factory inputEventReceiverFactory) { 40 String name = "input consumer"; 41 mService = service; 42 43 InputChannel[] channels = InputChannel.openInputChannelPair(name); 44 mServerChannel = channels[0]; 45 mClientChannel = channels[1]; 46 mService.mInputManager.registerInputChannel(mServerChannel, null); 47 48 mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver( 49 mClientChannel, looper); 50 51 mApplicationHandle = new InputApplicationHandle(null); 52 mApplicationHandle.name = name; 53 mApplicationHandle.dispatchingTimeoutNanos = 54 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS; 55 56 mWindowHandle = new InputWindowHandle(mApplicationHandle, null, Display.DEFAULT_DISPLAY); 57 mWindowHandle.name = name; 58 mWindowHandle.inputChannel = mServerChannel; 59 mWindowHandle.layoutParamsType = WindowManager.LayoutParams.TYPE_INPUT_CONSUMER; 60 mWindowLayer = getLayerLw(mWindowHandle.layoutParamsType); 61 mWindowHandle.layer = mWindowLayer; 62 mWindowHandle.layoutParamsFlags = 0; 63 mWindowHandle.dispatchingTimeoutNanos = 64 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS; 65 mWindowHandle.visible = true; 66 mWindowHandle.canReceiveKeys = false; 67 mWindowHandle.hasFocus = false; 68 mWindowHandle.hasWallpaper = false; 69 mWindowHandle.paused = false; 70 mWindowHandle.ownerPid = Process.myPid(); 71 mWindowHandle.ownerUid = Process.myUid(); 72 mWindowHandle.inputFeatures = 0; 73 mWindowHandle.scaleFactor = 1.0f; 74 } 75 76 void layout(int dw, int dh) { 77 mWindowHandle.touchableRegion.set(0, 0, dw, dh); 78 mWindowHandle.frameLeft = 0; 79 mWindowHandle.frameTop = 0; 80 mWindowHandle.frameRight = dw; 81 mWindowHandle.frameBottom = dh; 82 } 83 84 @Override 85 public void dismiss() { 86 synchronized (mService.mWindowMap) { 87 if (mService.removeInputConsumer()) { 88 mInputEventReceiver.dispose(); 89 mService.mInputManager.unregisterInputChannel(mServerChannel); 90 mClientChannel.dispose(); 91 mServerChannel.dispose(); 92 } 93 } 94 } 95 96 private int getLayerLw(int windowType) { 97 return mService.mPolicy.windowTypeToLayerLw(windowType) 98 * WindowManagerService.TYPE_LAYER_MULTIPLIER 99 + WindowManagerService.TYPE_LAYER_OFFSET; 100 } 101 } 102
