140 lines
7.4 KiB
C++
140 lines
7.4 KiB
C++
/*
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* Copyright (C) 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "CompositeEditCommand.h"
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#include "HTMLElement.h"
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#include "WritingDirection.h"
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namespace WebCore {
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class CSSPrimitiveValue;
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class EditingStyle;
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class StyleChange;
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enum ShouldIncludeTypingStyle {
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IncludeTypingStyle,
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IgnoreTypingStyle
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};
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class ApplyStyleCommand : public CompositeEditCommand {
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public:
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enum EPropertyLevel { PropertyDefault, ForceBlockProperties };
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enum InlineStyleRemovalMode { RemoveIfNeeded, RemoveAlways, RemoveNone };
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enum EAddStyledElement { AddStyledElement, DoNotAddStyledElement };
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typedef bool (*IsInlineElementToRemoveFunction)(const Element*);
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static Ref<ApplyStyleCommand> create(Document& document, const EditingStyle* style, EditAction action = EditAction::ChangeAttributes, EPropertyLevel level = PropertyDefault)
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{
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return adoptRef(*new ApplyStyleCommand(document, style, action, level));
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}
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static Ref<ApplyStyleCommand> create(Document& document, const EditingStyle* style, const Position& start, const Position& end, EditAction action = EditAction::ChangeAttributes, EPropertyLevel level = PropertyDefault)
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{
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return adoptRef(*new ApplyStyleCommand(document, style, start, end, action, level));
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}
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static Ref<ApplyStyleCommand> create(Ref<Element>&& element, bool removeOnly = false, EditAction action = EditAction::ChangeAttributes)
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{
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return adoptRef(*new ApplyStyleCommand(WTFMove(element), removeOnly, action));
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}
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static Ref<ApplyStyleCommand> create(Document& document, const EditingStyle* style, IsInlineElementToRemoveFunction isInlineElementToRemoveFunction, EditAction action = EditAction::ChangeAttributes)
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{
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return adoptRef(*new ApplyStyleCommand(document, style, isInlineElementToRemoveFunction, action));
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}
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private:
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ApplyStyleCommand(Document&, const EditingStyle*, EditAction, EPropertyLevel);
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ApplyStyleCommand(Document&, const EditingStyle*, const Position& start, const Position& end, EditAction, EPropertyLevel);
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ApplyStyleCommand(Ref<Element>&&, bool removeOnly, EditAction);
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ApplyStyleCommand(Document&, const EditingStyle*, bool (*isInlineElementToRemove)(const Element*), EditAction);
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void doApply() override;
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bool shouldDispatchInputEvents() const final { return false; }
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// style-removal helpers
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bool isStyledInlineElementToRemove(Element*) const;
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bool shouldApplyInlineStyleToRun(EditingStyle&, Node* runStart, Node* pastEndNode);
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void removeConflictingInlineStyleFromRun(EditingStyle&, RefPtr<Node>& runStart, RefPtr<Node>& runEnd, Node* pastEndNode);
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bool removeInlineStyleFromElement(EditingStyle&, HTMLElement&, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = nullptr);
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inline bool shouldRemoveInlineStyleFromElement(EditingStyle& style, HTMLElement& element) {return removeInlineStyleFromElement(style, element, RemoveNone);}
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void replaceWithSpanOrRemoveIfWithoutAttributes(HTMLElement&);
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bool removeImplicitlyStyledElement(EditingStyle&, HTMLElement&, InlineStyleRemovalMode, EditingStyle* extractedStyle);
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bool removeCSSStyle(EditingStyle&, HTMLElement&, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = nullptr);
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RefPtr<HTMLElement> highestAncestorWithConflictingInlineStyle(EditingStyle&, Node*);
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void applyInlineStyleToPushDown(Node&, EditingStyle*);
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void pushDownInlineStyleAroundNode(EditingStyle&, Node*);
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void removeInlineStyle(EditingStyle&, const Position& start, const Position& end);
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bool nodeFullySelected(Element&, const Position& start, const Position& end) const;
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bool nodeFullyUnselected(Element&, const Position& start, const Position& end) const;
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// style-application helpers
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void applyBlockStyle(EditingStyle&);
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void applyRelativeFontStyleChange(EditingStyle*);
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void applyInlineStyle(EditingStyle&);
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void fixRangeAndApplyInlineStyle(EditingStyle&, const Position& start, const Position& end);
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void applyInlineStyleToNodeRange(EditingStyle&, Node& startNode, Node* pastEndNode);
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void addBlockStyle(const StyleChange&, HTMLElement&);
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void addInlineStyleIfNeeded(EditingStyle*, Node& start, Node& end, EAddStyledElement = AddStyledElement);
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Position positionToComputeInlineStyleChange(Node&, RefPtr<Node>& dummyElement);
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void applyInlineStyleChange(Node& startNode, Node& endNode, StyleChange&, EAddStyledElement);
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void splitTextAtStart(const Position& start, const Position& end);
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void splitTextAtEnd(const Position& start, const Position& end);
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void splitTextElementAtStart(const Position& start, const Position& end);
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void splitTextElementAtEnd(const Position& start, const Position& end);
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bool shouldSplitTextElement(Element*, EditingStyle&);
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bool isValidCaretPositionInTextNode(const Position& position);
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bool mergeStartWithPreviousIfIdentical(const Position& start, const Position& end);
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bool mergeEndWithNextIfIdentical(const Position& start, const Position& end);
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void cleanupUnstyledAppleStyleSpans(ContainerNode* dummySpanAncestor);
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bool surroundNodeRangeWithElement(Node& start, Node& end, Ref<Element>&&);
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float computedFontSize(Node*);
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void joinChildTextNodes(Node*, const Position& start, const Position& end);
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RefPtr<HTMLElement> splitAncestorsWithUnicodeBidi(Node*, bool before, WritingDirection allowedDirection);
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void removeEmbeddingUpToEnclosingBlock(Node* node, Node* unsplitAncestor);
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void updateStartEnd(const Position& newStart, const Position& newEnd);
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Position startPosition();
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Position endPosition();
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RefPtr<EditingStyle> m_style;
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EPropertyLevel m_propertyLevel;
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Position m_start;
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Position m_end;
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bool m_useEndingSelection;
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RefPtr<Element> m_styledInlineElement;
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bool m_removeOnly;
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IsInlineElementToRemoveFunction m_isInlineElementToRemoveFunction { nullptr };
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};
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enum ShouldStyleAttributeBeEmpty { AllowNonEmptyStyleAttribute, StyleAttributeShouldBeEmpty };
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bool isEmptyFontTag(const Element*, ShouldStyleAttributeBeEmpty = StyleAttributeShouldBeEmpty);
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bool isLegacyAppleStyleSpan(const Node*);
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bool isStyleSpanOrSpanWithOnlyStyleAttribute(const Element&);
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Ref<HTMLElement> createStyleSpanElement(Document&);
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} // namespace WebCore
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