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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _UI_INPUT_APPLICATION_H
#define _UI_INPUT_APPLICATION_H
#include <androidfw/Input.h>
#include <utils/RefBase.h>
#include <utils/Timers.h>
#include <utils/String8.h>
namespace android {
/*
* Describes the properties of an application that can receive input.
*/
struct InputApplicationInfo {
String8 name;
nsecs_t dispatchingTimeout;
};
/*
* Handle for an application that can receive input.
*
* Used by the native input dispatcher as a handle for the window manager objects
* that describe an application.
*/
class InputApplicationHandle : public RefBase {
public:
inline const InputApplicationInfo* getInfo() const {
return mInfo;
}
inline String8 getName() const {
return mInfo ? mInfo->name : String8("<invalid>");
}
inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const {
return mInfo ? mInfo->dispatchingTimeout : defaultValue;
}
/**
* Requests that the state of this object be updated to reflect
* the most current available information about the application.
*
* This method should only be called from within the input dispatcher's
* critical section.
*
* Returns true on success, or false if the handle is no longer valid.
*/
virtual bool updateInfo() = 0;
/**
* Releases the storage used by the associated information when it is
* no longer needed.
*/
void releaseInfo();
protected:
InputApplicationHandle();
virtual ~InputApplicationHandle();
InputApplicationInfo* mInfo;
};
} // namespace android
#endif // _UI_INPUT_APPLICATION_H
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