928e054931
This change implements two heuristics. 1. When events are older than 10 seconds, they are dropped. 2. If the application is currently busy processing an event and the user touches a window belonging to a different application then we drop the currently queued events so the other application can start processing the gesture immediately. Note that the system takes care of synthesizing cancelation events automatically for any events that it drops. Added some new handle types to allow the native dispatcher to indirectly refer to the WindowManager's window state and app window token. This was done to enable the dispatcher to identify the application to which each window belongs but it also eliminates some lookup tables and linear searches through the window list on each key press. Bug: 3224911 Change-Id: I9dae8dfe23d195d76865f97011fe2f1d351e2940
87 lines
2.3 KiB
Java
87 lines
2.3 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server;
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import android.view.InputChannel;
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/**
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* Describes input-related window properties for use by the input dispatcher.
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* @hide
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*/
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public final class InputWindow {
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// The window handle.
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public InputWindowHandle inputWindowHandle;
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// The input channel associated with the window.
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public InputChannel inputChannel;
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// The window name.
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public String name;
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// Window layout params attributes. (WindowManager.LayoutParams)
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public int layoutParamsFlags;
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public int layoutParamsType;
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// Dispatching timeout.
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public long dispatchingTimeoutNanos;
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// Window frame area.
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public int frameLeft;
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public int frameTop;
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public int frameRight;
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public int frameBottom;
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// Window visible frame area.
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public int visibleFrameLeft;
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public int visibleFrameTop;
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public int visibleFrameRight;
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public int visibleFrameBottom;
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// Window touchable area.
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public int touchableAreaLeft;
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public int touchableAreaTop;
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public int touchableAreaRight;
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public int touchableAreaBottom;
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// Window is visible.
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public boolean visible;
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// Window can receive keys.
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public boolean canReceiveKeys;
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// Window has focus.
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public boolean hasFocus;
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// Window has wallpaper. (window is the current wallpaper target)
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public boolean hasWallpaper;
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// Input event dispatching is paused.
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public boolean paused;
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// Window layer.
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public int layer;
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// Id of process and user that owns the window.
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public int ownerPid;
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public int ownerUid;
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public void recycle() {
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inputWindowHandle = null;
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inputChannel = null;
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}
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}
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