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84 lines
2.2 KiB
C++
84 lines
2.2 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 "Input.h"
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#include <utils/RefBase.h>
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#include "Timers.h"
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#include "String8.h"
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namespace android {
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/*
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* Describes the properties of an application that can receive input.
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*/
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struct InputApplicationInfo {
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String8 name;
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nsecs_t dispatchingTimeout;
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};
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/*
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* Handle for an application that can receive input.
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*
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* Used by the native input dispatcher as a handle for 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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public:
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inline const InputApplicationInfo* getInfo() const {
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return mInfo;
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}
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inline String8 getName() const {
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return mInfo ? mInfo->name : String8("<invalid>");
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}
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inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const {
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return mInfo ? mInfo->dispatchingTimeout : defaultValue;
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}
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/**
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* Requests that the state of this object be updated to reflect
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* the most current available information about the application.
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*
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* This method should only be called from within the input dispatcher's
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* critical section.
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*
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* Returns true on success, or false if the handle is no longer valid.
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*/
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virtual bool updateInfo() = 0;
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/**
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* Releases the storage used by the associated information when it is
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* no longer needed.
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*/
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void releaseInfo();
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protected:
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InputApplicationHandle();
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virtual ~InputApplicationHandle();
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InputApplicationInfo* mInfo;
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};
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} // namespace android
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#endif // _UI_INPUT_APPLICATION_H
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