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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_EVENTS_EVENT_SOURCE_H_
#define UI_EVENTS_EVENT_SOURCE_H_
#include <vector>
#include "ui/events/event_dispatcher.h"
#include "ui/events/events_export.h"
namespace ui {
class Event;
class EventProcessor;
class EventRewriter;
// EventSource receives events from the native platform (e.g. X11, win32 etc.)
// and sends the events to an EventProcessor.
class EVENTS_EXPORT EventSource {
public:
EventSource();
virtual ~EventSource();
virtual EventProcessor* GetEventProcessor() = 0;
// Adds a rewriter to modify events before they are sent to the
// EventProcessor. The rewriter must be explicitly removed from the
// EventSource before the rewriter is destroyed. The EventSource
// does not take ownership of the rewriter.
void AddEventRewriter(EventRewriter* rewriter);
void RemoveEventRewriter(EventRewriter* rewriter);
protected:
EventDispatchDetails SendEventToProcessor(Event* event);
private:
friend class EventSourceTestApi;
typedef std::vector<EventRewriter*> EventRewriterList;
EventDispatchDetails DeliverEventToProcessor(Event* event);
EventRewriterList rewriter_list_;
DISALLOW_COPY_AND_ASSIGN(EventSource);
};
} // namespace ui
#endif // UI_EVENTS_EVENT_SOURCE_H_
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