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
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
/*
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* Copyright (C) 2011 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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#ifndef _UI_INPUT_APPLICATION_H
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#define _UI_INPUT_APPLICATION_H
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#include <ui/Input.h>
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#include <utils/RefBase.h>
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#include <utils/Timers.h>
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#include <utils/String8.h>
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namespace android {
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/*
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* A handle to an application that can receive input.
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* Used by the native input dispatcher to indirectly refer to the window manager objects
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* that describe an application.
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*/
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class InputApplicationHandle : public RefBase {
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protected:
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InputApplicationHandle() { }
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virtual ~InputApplicationHandle() { }
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};
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/*
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* An input application describes properties of an application that can receive input.
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*/
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struct InputApplication {
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sp<InputApplicationHandle> inputApplicationHandle;
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String8 name;
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nsecs_t dispatchingTimeout;
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};
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} // namespace android
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#endif // _UI_INPUT_APPLICATION_H
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