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/*
* Copyright (C) 2012 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 TextFieldDecorationElement_h
#define TextFieldDecorationElement_h
#include "HTMLDivElement.h"
namespace WebCore {
class CachedImage;
class HTMLInputElement;
class ShadowRoot;
// A TextFieldDecorator object must live until all of text fields which were
// decorated by it die.
class TextFieldDecorator {
public:
// Returns true if this TextFieldDecorator wants to add a
// decoration to the specified text field.
virtual bool willAddDecorationTo(HTMLInputElement*) = 0;
virtual bool visibleByDefault() = 0;
// A TextFieldDecorator object should own the CachedImage objects.
virtual CachedImage* imageForNormalState() = 0;
virtual CachedImage* imageForDisabledState() = 0;
virtual CachedImage* imageForReadonlyState() = 0;
virtual CachedImage* imageForHoverState() = 0;
virtual void handleClick(HTMLInputElement*) = 0;
// This function is called just before detaching the decoration. It must not
// call functions which updating state of the specified HTMLInputElement
// object.
virtual void willDetach(HTMLInputElement*) = 0;
virtual ~TextFieldDecorator();
};
// A TextFieldDecorationElement object must be in a shadow tree of an
// HTMLInputElement.
class TextFieldDecorationElement : public HTMLDivElement {
public:
static PassRefPtr<TextFieldDecorationElement> create(Document*, TextFieldDecorator*);
static TextFieldDecorationElement* fromShadowRoot(ShadowRoot*);
TextFieldDecorator* textFieldDecorator() { return m_textFieldDecorator; }
void decorate(HTMLInputElement*, bool visible);
virtual bool willRespondToMouseMoveEvents() OVERRIDE;
virtual bool willRespondToMouseClickEvents() OVERRIDE;
private:
TextFieldDecorationElement(Document*, TextFieldDecorator*);
virtual bool isTextFieldDecoration() const OVERRIDE;
virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
virtual RenderObject* createRenderer(RenderArena*, RenderStyle*) OVERRIDE;
virtual void attach() OVERRIDE;
virtual void detach() OVERRIDE;
virtual bool isMouseFocusable() const OVERRIDE;
virtual void defaultEventHandler(Event*) OVERRIDE;
HTMLInputElement* hostInput();
void updateImage();
TextFieldDecorator* m_textFieldDecorator;
bool m_isInHoverState;
};
inline TextFieldDecorationElement* toTextFieldDecorationElement(Node* node)
{
ASSERT(node);
ASSERT(node->isElementNode());
ASSERT(static_cast<Element*>(node)->isTextFieldDecoration());
return static_cast<TextFieldDecorationElement*>(node);
}
}
#endif
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