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/*
* Copyright (C) 2005, 2006, 2008, 2009 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 ApplyStyleCommand_h
#define ApplyStyleCommand_h
#include "CompositeEditCommand.h"
#include "HTMLElement.h"
#include "WritingDirection.h"
namespace WebCore {
class CSSPrimitiveValue;
class EditingStyle;
class StyleChange;
enum ShouldIncludeTypingStyle {
IncludeTypingStyle,
IgnoreTypingStyle
};
class ApplyStyleCommand : public CompositeEditCommand {
public:
enum EPropertyLevel { PropertyDefault, ForceBlockProperties };
enum InlineStyleRemovalMode { RemoveIfNeeded, RemoveAlways, RemoveNone };
enum EAddStyledElement { AddStyledElement, DoNotAddStyledElement };
typedef bool (*IsInlineElementToRemoveFunction)(const Element*);
static PassRefPtr<ApplyStyleCommand> create(Document* document, const EditingStyle* style, EditAction action = EditActionChangeAttributes, EPropertyLevel level = PropertyDefault)
{
return adoptRef(new ApplyStyleCommand(document, style, action, level));
}
static PassRefPtr<ApplyStyleCommand> create(Document* document, const EditingStyle* style, const Position& start, const Position& end, EditAction action = EditActionChangeAttributes, EPropertyLevel level = PropertyDefault)
{
return adoptRef(new ApplyStyleCommand(document, style, start, end, action, level));
}
static PassRefPtr<ApplyStyleCommand> create(PassRefPtr<Element> element, bool removeOnly = false, EditAction action = EditActionChangeAttributes)
{
return adoptRef(new ApplyStyleCommand(element, removeOnly, action));
}
static PassRefPtr<ApplyStyleCommand> create(Document* document, const EditingStyle* style, IsInlineElementToRemoveFunction isInlineElementToRemoveFunction, EditAction action = EditActionChangeAttributes)
{
return adoptRef(new ApplyStyleCommand(document, style, isInlineElementToRemoveFunction, action));
}
private:
ApplyStyleCommand(Document*, const EditingStyle*, EditAction, EPropertyLevel);
ApplyStyleCommand(Document*, const EditingStyle*, const Position& start, const Position& end, EditAction, EPropertyLevel);
ApplyStyleCommand(PassRefPtr<Element>, bool removeOnly, EditAction);
ApplyStyleCommand(Document*, const EditingStyle*, bool (*isInlineElementToRemove)(const Element*), EditAction);
virtual void doApply();
virtual EditAction editingAction() const;
// style-removal helpers
bool isStyledInlineElementToRemove(Element*) const;
bool removeStyleFromRunBeforeApplyingStyle(EditingStyle*, RefPtr<Node>& runStart, RefPtr<Node>& runEnd);
bool removeInlineStyleFromElement(EditingStyle*, PassRefPtr<HTMLElement>, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = 0);
inline bool shouldRemoveInlineStyleFromElement(EditingStyle* style, HTMLElement* element) {return removeInlineStyleFromElement(style, element, RemoveNone);}
void replaceWithSpanOrRemoveIfWithoutAttributes(HTMLElement*&);
bool removeImplicitlyStyledElement(EditingStyle*, HTMLElement*, InlineStyleRemovalMode, EditingStyle* extractedStyle);
bool removeCSSStyle(EditingStyle*, HTMLElement*, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = 0);
HTMLElement* highestAncestorWithConflictingInlineStyle(EditingStyle*, Node*);
void applyInlineStyleToPushDown(Node*, EditingStyle*);
void pushDownInlineStyleAroundNode(EditingStyle*, Node*);
void removeInlineStyle(EditingStyle* , const Position& start, const Position& end);
bool nodeFullySelected(Node*, const Position& start, const Position& end) const;
bool nodeFullyUnselected(Node*, const Position& start, const Position& end) const;
// style-application helpers
void applyBlockStyle(EditingStyle*);
void applyRelativeFontStyleChange(EditingStyle*);
void applyInlineStyle(EditingStyle*);
void fixRangeAndApplyInlineStyle(EditingStyle*, const Position& start, const Position& end);
void applyInlineStyleToNodeRange(EditingStyle*, Node* startNode, Node* pastEndNode);
void addBlockStyle(const StyleChange&, HTMLElement*);
void addInlineStyleIfNeeded(EditingStyle*, PassRefPtr<Node> start, PassRefPtr<Node> end, EAddStyledElement = AddStyledElement);
void splitTextAtStart(const Position& start, const Position& end);
void splitTextAtEnd(const Position& start, const Position& end);
void splitTextElementAtStart(const Position& start, const Position& end);
void splitTextElementAtEnd(const Position& start, const Position& end);
bool shouldSplitTextElement(Element*, EditingStyle*);
bool isValidCaretPositionInTextNode(const Position& position);
bool mergeStartWithPreviousIfIdentical(const Position& start, const Position& end);
bool mergeEndWithNextIfIdentical(const Position& start, const Position& end);
void cleanupUnstyledAppleStyleSpans(Node* dummySpanAncestor);
void surroundNodeRangeWithElement(PassRefPtr<Node> start, PassRefPtr<Node> end, PassRefPtr<Element>);
float computedFontSize(Node*);
void joinChildTextNodes(Node*, const Position& start, const Position& end);
HTMLElement* splitAncestorsWithUnicodeBidi(Node*, bool before, WritingDirection allowedDirection);
void removeEmbeddingUpToEnclosingBlock(Node* node, Node* unsplitAncestor);
void updateStartEnd(const Position& newStart, const Position& newEnd);
Position startPosition();
Position endPosition();
RefPtr<EditingStyle> m_style;
EditAction m_editingAction;
EPropertyLevel m_propertyLevel;
Position m_start;
Position m_end;
bool m_useEndingSelection;
RefPtr<Element> m_styledInlineElement;
bool m_removeOnly;
IsInlineElementToRemoveFunction m_isInlineElementToRemoveFunction;
};
bool isStyleSpan(const Node*);
PassRefPtr<HTMLElement> createStyleSpanElement(Document*);
} // namespace WebCore
#endif
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