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// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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 STARBOARD_SHARED_LINUX_DEV_INPUT_DEV_INPUT_H_
#define STARBOARD_SHARED_LINUX_DEV_INPUT_DEV_INPUT_H_
#include "starboard/shared/internal_only.h"
#include "starboard/shared/starboard/application.h"
#include "starboard/time.h"
#include "starboard/window.h"
namespace starboard {
namespace shared {
namespace dev_input {
// A class that wraps /dev/input, providing enough functionality to be used in a
// Starboard Application implementation.
class DevInput {
public:
typedef ::starboard::shared::starboard::Application::Event Event;
virtual ~DevInput() {}
// Returns an event if one exists, otherwise returns NULL. The caller is
// responsible for deleting the returned event.
virtual Event* PollNextSystemEvent() = 0;
// Waits for an event until the timeout |time| runs out. If an event occurs in
// this time, it is returned, otherwise NULL is returned. The caller is
// responsible for deleting the returned event.
virtual Event* WaitForSystemEventWithTimeout(SbTime duration) = 0;
// Wakes up any thread waiting within a call to
// WaitForSystemEventWithTimeout().
virtual void WakeSystemEventWait() = 0;
// Creates an instance of DevInput for the given window.
static DevInput* Create(SbWindow window);
// Creates an instance of DevInput for the given window.
// The wake_up_fd will be used in WaitForSystemEventWithTimeout() to return
// early when input is available on it.
static DevInput* Create(SbWindow window, int wake_up_fd);
protected:
DevInput() {}
};
} // namespace dev_input
} // namespace shared
} // namespace starboard
#endif // STARBOARD_SHARED_LINUX_DEV_INPUT_DEV_INPUT_H_