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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.input;
     18 
     19 import android.graphics.Region;
     20 import android.view.InputChannel;
     21 
     22 /**
     23  * Functions as a handle for a window that can receive input.
     24  * Enables the native input dispatcher to refer indirectly to the window manager's window state.
     25  * @hide
     26  */
     27 public final class InputWindowHandle {
     28     // Pointer to the native input window handle.
     29     // This field is lazily initialized via JNI.
     30     @SuppressWarnings("unused")
     31     private long ptr;
     32 
     33     // The input application handle.
     34     public final InputApplicationHandle inputApplicationHandle;
     35 
     36     // The window manager's window state.
     37     public final Object windowState;
     38 
     39     // The input channel associated with the window.
     40     public InputChannel inputChannel;
     41 
     42     // The window name.
     43     public String name;
     44 
     45     // Window layout params attributes.  (WindowManager.LayoutParams)
     46     public int layoutParamsFlags;
     47     public int layoutParamsType;
     48 
     49     // Dispatching timeout.
     50     public long dispatchingTimeoutNanos;
     51 
     52     // Window frame.
     53     public int frameLeft;
     54     public int frameTop;
     55     public int frameRight;
     56     public int frameBottom;
     57 
     58     // Global scaling factor applied to touch events when they are dispatched
     59     // to the window
     60     public float scaleFactor;
     61 
     62     // Window touchable region.
     63     public final Region touchableRegion = new Region();
     64 
     65     // Window is visible.
     66     public boolean visible;
     67 
     68     // Window can receive keys.
     69     public boolean canReceiveKeys;
     70 
     71     // Window has focus.
     72     public boolean hasFocus;
     73 
     74     // Window has wallpaper.  (window is the current wallpaper target)
     75     public boolean hasWallpaper;
     76 
     77     // Input event dispatching is paused.
     78     public boolean paused;
     79 
     80     // Window layer.
     81     public int layer;
     82 
     83     // Id of process and user that owns the window.
     84     public int ownerPid;
     85     public int ownerUid;
     86 
     87     // Window input features.
     88     public int inputFeatures;
     89 
     90     // Display this input is on.
     91     public final int displayId;
     92 
     93     private native void nativeDispose();
     94 
     95     public InputWindowHandle(InputApplicationHandle inputApplicationHandle,
     96             Object windowState, int displayId) {
     97         this.inputApplicationHandle = inputApplicationHandle;
     98         this.windowState = windowState;
     99         this.displayId = displayId;
    100     }
    101 
    102     @Override
    103     protected void finalize() throws Throwable {
    104         try {
    105             nativeDispose();
    106         } finally {
    107             super.finalize();
    108         }
    109     }
    110 }
    111