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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 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 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.
*/
#pragma once
#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 Ref<ApplyStyleCommand> create(Document& document, const EditingStyle* style, EditAction action = EditAction::ChangeAttributes, EPropertyLevel level = PropertyDefault)
{
return adoptRef(*new ApplyStyleCommand(document, style, action, level));
}
static Ref<ApplyStyleCommand> create(Document& document, const EditingStyle* style, const Position& start, const Position& end, EditAction action = EditAction::ChangeAttributes, EPropertyLevel level = PropertyDefault)
{
return adoptRef(*new ApplyStyleCommand(document, style, start, end, action, level));
}
static Ref<ApplyStyleCommand> create(Ref<Element>&& element, bool removeOnly = false, EditAction action = EditAction::ChangeAttributes)
{
return adoptRef(*new ApplyStyleCommand(WTFMove(element), removeOnly, action));
}
static Ref<ApplyStyleCommand> create(Document& document, const EditingStyle* style, IsInlineElementToRemoveFunction isInlineElementToRemoveFunction, EditAction action = EditAction::ChangeAttributes)
{
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(Ref<Element>&&, bool removeOnly, EditAction);
ApplyStyleCommand(Document&, const EditingStyle*, bool (*isInlineElementToRemove)(const Element*), EditAction);
void doApply() override;
bool shouldDispatchInputEvents() const final { return false; }
// style-removal helpers
bool isStyledInlineElementToRemove(Element*) const;
bool shouldApplyInlineStyleToRun(EditingStyle&, Node* runStart, Node* pastEndNode);
void removeConflictingInlineStyleFromRun(EditingStyle&, RefPtr<Node>& runStart, RefPtr<Node>& runEnd, Node* pastEndNode);
bool removeInlineStyleFromElement(EditingStyle&, HTMLElement&, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = nullptr);
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 = nullptr);
RefPtr<HTMLElement> highestAncestorWithConflictingInlineStyle(EditingStyle&, Node*);
void applyInlineStyleToPushDown(Node&, EditingStyle*);
void pushDownInlineStyleAroundNode(EditingStyle&, Node*);
void removeInlineStyle(EditingStyle&, const Position& start, const Position& end);
bool nodeFullySelected(Element&, const Position& start, const Position& end) const;
bool nodeFullyUnselected(Element&, 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*, Node& start, Node& end, EAddStyledElement = AddStyledElement);
Position positionToComputeInlineStyleChange(Node&, RefPtr<Node>& dummyElement);
void applyInlineStyleChange(Node& startNode, Node& endNode, StyleChange&, EAddStyledElement);
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(ContainerNode* dummySpanAncestor);
bool surroundNodeRangeWithElement(Node& start, Node& end, Ref<Element>&&);
float computedFontSize(Node*);
void joinChildTextNodes(Node*, const Position& start, const Position& end);
RefPtr<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;
EPropertyLevel m_propertyLevel;
Position m_start;
Position m_end;
bool m_useEndingSelection;
RefPtr<Element> m_styledInlineElement;
bool m_removeOnly;
IsInlineElementToRemoveFunction m_isInlineElementToRemoveFunction { nullptr };
};
enum ShouldStyleAttributeBeEmpty { AllowNonEmptyStyleAttribute, StyleAttributeShouldBeEmpty };
bool isEmptyFontTag(const Element*, ShouldStyleAttributeBeEmpty = StyleAttributeShouldBeEmpty);
bool isLegacyAppleStyleSpan(const Node*);
bool isStyleSpanOrSpanWithOnlyStyleAttribute(const Element&);
Ref<HTMLElement> createStyleSpanElement(Document&);
} // namespace WebCore