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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef InputMethodContext_h
#define InputMethodContext_h
#include "bindings/v8/ScriptWrappable.h"
#include "core/editing/CompositionUnderline.h"
#include "core/events/EventTarget.h"
#include "core/html/HTMLElement.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/RefPtr.h"
#include "wtf/text/AtomicString.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class Composition;
class ExecutionContext;
class InputMethodController;
class Node;
class InputMethodContext : public ScriptWrappable, public EventTargetWithInlineData {
public:
static PassOwnPtr<InputMethodContext> create(HTMLElement*);
~InputMethodContext();
void ref() { m_element->ref(); }
void deref() { m_element->deref(); }
Composition* composition();
String locale() const;
HTMLElement* target() const;
unsigned compositionStartOffset();
unsigned compositionEndOffset();
void confirmComposition();
String compositionText() const;
int selectionStart() const;
int selectionEnd() const;
const Vector<unsigned>& segments();
virtual const AtomicString& interfaceName() const OVERRIDE;
virtual ExecutionContext* executionContext() const OVERRIDE;
DEFINE_ATTRIBUTE_EVENT_LISTENER(candidatewindowshow);
DEFINE_ATTRIBUTE_EVENT_LISTENER(candidatewindowupdate);
DEFINE_ATTRIBUTE_EVENT_LISTENER(candidatewindowhide);
void dispatchCandidateWindowShowEvent();
void dispatchCandidateWindowUpdateEvent();
void dispatchCandidateWindowHideEvent();
private:
InputMethodContext(HTMLElement*);
bool hasFocus() const;
CompositionUnderline selectedSegment() const;
InputMethodController& inputMethodController() const;
virtual void refEventTarget() OVERRIDE { ref(); }
virtual void derefEventTarget() OVERRIDE { deref(); }
HTMLElement* m_element;
OwnPtr<Composition> m_composition;
Vector<unsigned> m_segments;
};
} // namespace WebCore
#endif // InputMethodContext_h
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