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/*
* Copyright (C) 2010 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 EditingStyle_h
#define EditingStyle_h
#include "WritingDirection.h"
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class CSSStyleDeclaration;
class CSSComputedStyleDeclaration;
class CSSMutableStyleDeclaration;
class Node;
class Position;
class RenderStyle;
class EditingStyle : public RefCounted<EditingStyle> {
public:
enum PropertiesToInclude { AllProperties, OnlyInheritableProperties };
enum ShouldPreserveWritingDirection { PreserveWritingDirection, DoNotPreserveWritingDirection };
static float NoFontDelta;
static PassRefPtr<EditingStyle> create()
{
return adoptRef(new EditingStyle());
}
static PassRefPtr<EditingStyle> create(Node* node, PropertiesToInclude propertiesToInclude = OnlyInheritableProperties)
{
return adoptRef(new EditingStyle(node, propertiesToInclude));
}
static PassRefPtr<EditingStyle> create(const Position& position)
{
return adoptRef(new EditingStyle(position));
}
static PassRefPtr<EditingStyle> create(const CSSStyleDeclaration* style)
{
return adoptRef(new EditingStyle(style));
}
~EditingStyle();
CSSMutableStyleDeclaration* style() { return m_mutableStyle.get(); }
bool textDirection(WritingDirection&) const;
bool isEmpty() const;
void setStyle(PassRefPtr<CSSMutableStyleDeclaration>);
void overrideWithStyle(const CSSMutableStyleDeclaration*);
void clear();
PassRefPtr<EditingStyle> copy() const;
PassRefPtr<EditingStyle> extractAndRemoveBlockProperties();
PassRefPtr<EditingStyle> extractAndRemoveTextDirection();
void removeBlockProperties();
void removeStyleAddedByNode(Node*);
void removeStyleConflictingWithStyleOfNode(Node*);
void removeNonEditingProperties();
void prepareToApplyAt(const Position&, ShouldPreserveWritingDirection = DoNotPreserveWritingDirection);
float fontSizeDelta() const { return m_fontSizeDelta; }
bool hasFontSizeDelta() const { return m_fontSizeDelta != NoFontDelta; }
private:
EditingStyle();
EditingStyle(Node*, PropertiesToInclude);
EditingStyle(const Position&);
EditingStyle(const CSSStyleDeclaration*);
void init(Node*, PropertiesToInclude);
void removeTextFillAndStrokeColorsIfNeeded(RenderStyle*);
void replaceFontSizeByKeywordIfPossible(RenderStyle*, CSSComputedStyleDeclaration*);
void extractFontSizeDelta();
RefPtr<CSSMutableStyleDeclaration> m_mutableStyle;
bool m_shouldUseFixedDefaultFontSize;
float m_fontSizeDelta;
};
PassRefPtr<EditingStyle> editingStyleIncludingTypingStyle(const Position&);
} // namespace WebCore
#endif // EditingStyle_h
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