Home | History | Annotate | Download | only in wm 
      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.graphics.Region;
     20 import android.view.InputChannel;
     21 import android.view.WindowManagerPolicy;
     22 
     23 /**
     24  * Functions as a handle for a window that can receive input.
     25  * Enables the native input dispatcher to refer indirectly to the window manager's window state.
     26  * @hide
     27  */
     28 public final class InputWindowHandle {
     29     // Pointer to the native input window handle.
     30     // This field is lazily initialized via JNI.
     31     @SuppressWarnings("unused")
     32     private int ptr;
     33 
     34     // The input application handle.
     35     public final InputApplicationHandle inputApplicationHandle;
     36 
     37     // The window manager's window state.
     38     public final WindowManagerPolicy.WindowState windowState;
     39 
     40     // The input channel associated with the window.
     41     public InputChannel inputChannel;
     42 
     43     // The window name.
     44     public String name;
     45 
     46     // Window layout params attributes.  (WindowManager.LayoutParams)
     47     public int layoutParamsFlags;
     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     private native void nativeDispose();
     92 
     93     public InputWindowHandle(InputApplicationHandle inputApplicationHandle,
     94             WindowManagerPolicy.WindowState windowState) {
     95         this.inputApplicationHandle = inputApplicationHandle;
     96         this.windowState = windowState;
     97     }
     98 
     99     @Override
    100     protected void finalize() throws Throwable {
    101         try {
    102             nativeDispose();
    103         } finally {
    104             super.finalize();
    105         }
    106     }
    107 }
    108