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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 int 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 layoutParamsPrivateFlags;
     48     public int layoutParamsType;
     49 
     50     // Dispatching timeout.
     51     public long dispatchingTimeoutNanos;
     52 
     53     // Window frame.
     54     public int frameLeft;
     55     public int frameTop;
     56     public int frameRight;
     57     public int frameBottom;
     58 
     59     // Global scaling factor applied to touch events when they are dispatched
     60     // to the window
     61     public float scaleFactor;
     62 
     63     // Window touchable region.
     64     public final Region touchableRegion = new Region();
     65 
     66     // Window is visible.
     67     public boolean visible;
     68 
     69     // Window can receive keys.
     70     public boolean canReceiveKeys;
     71 
     72     // Window has focus.
     73     public boolean hasFocus;
     74 
     75     // Window has wallpaper.  (window is the current wallpaper target)
     76     public boolean hasWallpaper;
     77 
     78     // Input event dispatching is paused.
     79     public boolean paused;
     80 
     81     // Window layer.
     82     public int layer;
     83 
     84     // Id of process and user that owns the window.
     85     public int ownerPid;
     86     public int ownerUid;
     87 
     88     // Window input features.
     89     public int inputFeatures;
     90 
     91     // Display this input is on.
     92     public final int displayId;
     93 
     94     private native void nativeDispose();
     95 
     96     public InputWindowHandle(InputApplicationHandle inputApplicationHandle,
     97             Object windowState, int displayId) {
     98         this.inputApplicationHandle = inputApplicationHandle;
     99         this.windowState = windowState;
    100         this.displayId = displayId;
    101     }
    102 
    103     @Override
    104     protected void finalize() throws Throwable {
    105         try {
    106             nativeDispose();
    107         } finally {
    108             super.finalize();
    109         }
    110     }
    111 }
    112