2 * Copyright (C) 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #ifndef ApplyStyleCommand_h
27 #define ApplyStyleCommand_h
29 #include "core/editing/CompositeEditCommand.h"
30 #include "core/editing/WritingDirection.h"
31 #include "core/html/HTMLElement.h"
35 class CSSPrimitiveValue;
39 enum ShouldIncludeTypingStyle {
44 class ApplyStyleCommand FINAL : public CompositeEditCommand {
46 enum EPropertyLevel { PropertyDefault, ForceBlockProperties };
47 enum InlineStyleRemovalMode { RemoveIfNeeded, RemoveAlways, RemoveNone };
48 enum EAddStyledElement { AddStyledElement, DoNotAddStyledElement };
49 typedef bool (*IsInlineElementToRemoveFunction)(const Element*);
51 static PassRefPtr<ApplyStyleCommand> create(Document& document, const EditingStyle* style, EditAction action = EditActionChangeAttributes, EPropertyLevel level = PropertyDefault)
53 return adoptRef(new ApplyStyleCommand(document, style, action, level));
55 static PassRefPtr<ApplyStyleCommand> create(Document& document, const EditingStyle* style, const Position& start, const Position& end, EditAction action = EditActionChangeAttributes, EPropertyLevel level = PropertyDefault)
57 return adoptRef(new ApplyStyleCommand(document, style, start, end, action, level));
59 static PassRefPtr<ApplyStyleCommand> create(PassRefPtr<Element> element, bool removeOnly = false, EditAction action = EditActionChangeAttributes)
61 return adoptRef(new ApplyStyleCommand(element, removeOnly, action));
63 static PassRefPtr<ApplyStyleCommand> create(Document& document, const EditingStyle* style, IsInlineElementToRemoveFunction isInlineElementToRemoveFunction, EditAction action = EditActionChangeAttributes)
65 return adoptRef(new ApplyStyleCommand(document, style, isInlineElementToRemoveFunction, action));
69 ApplyStyleCommand(Document&, const EditingStyle*, EditAction, EPropertyLevel);
70 ApplyStyleCommand(Document&, const EditingStyle*, const Position& start, const Position& end, EditAction, EPropertyLevel);
71 ApplyStyleCommand(PassRefPtr<Element>, bool removeOnly, EditAction);
72 ApplyStyleCommand(Document&, const EditingStyle*, bool (*isInlineElementToRemove)(const Element*), EditAction);
74 virtual void doApply() OVERRIDE;
75 virtual EditAction editingAction() const OVERRIDE;
77 // style-removal helpers
78 bool isStyledInlineElementToRemove(Element*) const;
79 bool shouldApplyInlineStyleToRun(EditingStyle*, Node* runStart, Node* pastEndNode);
80 void removeConflictingInlineStyleFromRun(EditingStyle*, RefPtr<Node>& runStart, RefPtr<Node>& runEnd, PassRefPtr<Node> pastEndNode);
81 bool removeInlineStyleFromElement(EditingStyle*, PassRefPtr<HTMLElement>, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = 0);
82 inline bool shouldRemoveInlineStyleFromElement(EditingStyle* style, HTMLElement* element) {return removeInlineStyleFromElement(style, element, RemoveNone);}
83 void replaceWithSpanOrRemoveIfWithoutAttributes(HTMLElement*&);
84 bool removeImplicitlyStyledElement(EditingStyle*, HTMLElement*, InlineStyleRemovalMode, EditingStyle* extractedStyle);
85 bool removeCSSStyle(EditingStyle*, HTMLElement*, InlineStyleRemovalMode = RemoveIfNeeded, EditingStyle* extractedStyle = 0);
86 HTMLElement* highestAncestorWithConflictingInlineStyle(EditingStyle*, Node*);
87 void applyInlineStyleToPushDown(Node*, EditingStyle*);
88 void pushDownInlineStyleAroundNode(EditingStyle*, Node*);
89 void removeInlineStyle(EditingStyle* , const Position& start, const Position& end);
90 bool nodeFullySelected(Node*, const Position& start, const Position& end) const;
92 // style-application helpers
93 void applyBlockStyle(EditingStyle*);
94 void applyRelativeFontStyleChange(EditingStyle*);
95 void applyInlineStyle(EditingStyle*);
96 void fixRangeAndApplyInlineStyle(EditingStyle*, const Position& start, const Position& end);
97 void applyInlineStyleToNodeRange(EditingStyle*, PassRefPtr<Node> startNode, PassRefPtr<Node> pastEndNode);
98 void addBlockStyle(const StyleChange&, HTMLElement*);
99 void addInlineStyleIfNeeded(EditingStyle*, PassRefPtr<Node> start, PassRefPtr<Node> end, EAddStyledElement = AddStyledElement);
100 Position positionToComputeInlineStyleChange(PassRefPtr<Node>, RefPtr<Node>& dummyElement);
101 void applyInlineStyleChange(PassRefPtr<Node> startNode, PassRefPtr<Node> endNode, StyleChange&, EAddStyledElement);
102 void splitTextAtStart(const Position& start, const Position& end);
103 void splitTextAtEnd(const Position& start, const Position& end);
104 void splitTextElementAtStart(const Position& start, const Position& end);
105 void splitTextElementAtEnd(const Position& start, const Position& end);
106 bool shouldSplitTextElement(Element*, EditingStyle*);
107 bool isValidCaretPositionInTextNode(const Position& position);
108 bool mergeStartWithPreviousIfIdentical(const Position& start, const Position& end);
109 bool mergeEndWithNextIfIdentical(const Position& start, const Position& end);
110 void cleanupUnstyledAppleStyleSpans(Node* dummySpanAncestor);
112 void surroundNodeRangeWithElement(PassRefPtr<Node> start, PassRefPtr<Node> end, PassRefPtr<Element>);
113 float computedFontSize(Node*);
114 void joinChildTextNodes(Node*, const Position& start, const Position& end);
116 HTMLElement* splitAncestorsWithUnicodeBidi(Node*, bool before, WritingDirection allowedDirection);
117 void removeEmbeddingUpToEnclosingBlock(Node* node, Node* unsplitAncestor);
119 void updateStartEnd(const Position& newStart, const Position& newEnd);
120 Position startPosition();
121 Position endPosition();
123 RefPtr<EditingStyle> m_style;
124 EditAction m_editingAction;
125 EPropertyLevel m_propertyLevel;
128 bool m_useEndingSelection;
129 RefPtr<Element> m_styledInlineElement;
131 IsInlineElementToRemoveFunction m_isInlineElementToRemoveFunction;
134 enum ShouldStyleAttributeBeEmpty { AllowNonEmptyStyleAttribute, StyleAttributeShouldBeEmpty };
135 bool isEmptyFontTag(const Element*, ShouldStyleAttributeBeEmpty = StyleAttributeShouldBeEmpty);
136 bool isLegacyAppleStyleSpan(const Node*);
137 bool isStyleSpanOrSpanWithOnlyStyleAttribute(const Element*);
138 PassRefPtr<HTMLElement> createStyleSpanElement(Document&);
140 } // namespace WebCore