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      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 com.android.server.input.InputApplicationHandle;
     20 import com.android.server.input.InputWindowHandle;
     21 
     22 import android.os.Looper;
     23 import android.os.Process;
     24 import android.util.Slog;
     25 import android.view.Display;
     26 import android.view.InputChannel;
     27 import android.view.InputEventReceiver;
     28 import android.view.InputQueue;
     29 import android.view.WindowManagerPolicy;
     30 
     31 public final class FakeWindowImpl implements WindowManagerPolicy.FakeWindow {
     32     final WindowManagerService mService;
     33     final InputChannel mServerChannel, mClientChannel;
     34     final InputApplicationHandle mApplicationHandle;
     35     final InputWindowHandle mWindowHandle;
     36     final InputEventReceiver mInputEventReceiver;
     37     final int mWindowLayer;
     38 
     39     boolean mTouchFullscreen;
     40 
     41     public FakeWindowImpl(WindowManagerService service,
     42             Looper looper, InputEventReceiver.Factory inputEventReceiverFactory,
     43             String name, int windowType, int layoutParamsFlags, boolean canReceiveKeys,
     44             boolean hasFocus, boolean touchFullscreen) {
     45         mService = service;
     46 
     47         InputChannel[] channels = InputChannel.openInputChannelPair(name);
     48         mServerChannel = channels[0];
     49         mClientChannel = channels[1];
     50         mService.mInputManager.registerInputChannel(mServerChannel, null);
     51 
     52         mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver(
     53                 mClientChannel, looper);
     54 
     55         mApplicationHandle = new InputApplicationHandle(null);
     56         mApplicationHandle.name = name;
     57         mApplicationHandle.dispatchingTimeoutNanos =
     58                 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
     59 
     60         mWindowHandle = new InputWindowHandle(mApplicationHandle, null, Display.DEFAULT_DISPLAY);
     61         mWindowHandle.name = name;
     62         mWindowHandle.inputChannel = mServerChannel;
     63         mWindowLayer = getLayerLw(windowType);
     64         mWindowHandle.layer = mWindowLayer;
     65         mWindowHandle.layoutParamsFlags = layoutParamsFlags;
     66         mWindowHandle.layoutParamsType = windowType;
     67         mWindowHandle.dispatchingTimeoutNanos =
     68                 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
     69         mWindowHandle.visible = true;
     70         mWindowHandle.canReceiveKeys = canReceiveKeys;
     71         mWindowHandle.hasFocus = hasFocus;
     72         mWindowHandle.hasWallpaper = false;
     73         mWindowHandle.paused = false;
     74         mWindowHandle.ownerPid = Process.myPid();
     75         mWindowHandle.ownerUid = Process.myUid();
     76         mWindowHandle.inputFeatures = 0;
     77         mWindowHandle.scaleFactor = 1.0f;
     78 
     79         mTouchFullscreen = touchFullscreen;
     80     }
     81 
     82     void layout(int dw, int dh) {
     83         if (mTouchFullscreen) {
     84             mWindowHandle.touchableRegion.set(0, 0, dw, dh);
     85         } else {
     86             mWindowHandle.touchableRegion.setEmpty();
     87         }
     88         mWindowHandle.frameLeft = 0;
     89         mWindowHandle.frameTop = 0;
     90         mWindowHandle.frameRight = dw;
     91         mWindowHandle.frameBottom = dh;
     92     }
     93 
     94     @Override
     95     public void dismiss() {
     96         synchronized (mService.mWindowMap) {
     97             if (mService.removeFakeWindowLocked(this)) {
     98                 mInputEventReceiver.dispose();
     99                 mService.mInputManager.unregisterInputChannel(mServerChannel);
    100                 mClientChannel.dispose();
    101                 mServerChannel.dispose();
    102             }
    103         }
    104     }
    105 
    106     private int getLayerLw(int windowType) {
    107         return mService.mPolicy.windowTypeToLayerLw(windowType)
    108                 * WindowManagerService.TYPE_LAYER_MULTIPLIER
    109                 + WindowManagerService.TYPE_LAYER_OFFSET;
    110     }
    111 }
    112