--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/ApplyStyleCommand.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,132 @@
+/*
+ * 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"
+
+namespace WebCore {
+
+class CSSPrimitiveValue;
+class HTMLElement;
+class StyleChange;
+
+enum ShouldIncludeTypingStyle {
+    IncludeTypingStyle,
+    IgnoreTypingStyle
+};
+
+class ApplyStyleCommand : public CompositeEditCommand {
+public:
+    enum EPropertyLevel { PropertyDefault, ForceBlockProperties };
+
+    static PassRefPtr<ApplyStyleCommand> create(Document* document, CSSStyleDeclaration* style, EditAction action = EditActionChangeAttributes, EPropertyLevel level = PropertyDefault)
+    {
+        return adoptRef(new ApplyStyleCommand(document, style, action, level));
+    }
+    static PassRefPtr<ApplyStyleCommand> create(Document* document, CSSStyleDeclaration* 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<CSSMutableStyleDeclaration> editingStyleAtPosition(Position pos, ShouldIncludeTypingStyle shouldIncludeTypingStyle = IgnoreTypingStyle);
+
+private:
+    ApplyStyleCommand(Document*, CSSStyleDeclaration*, EditAction, EPropertyLevel);
+    ApplyStyleCommand(Document*, CSSStyleDeclaration*, const Position& start, const Position& end, EditAction, EPropertyLevel);
+    ApplyStyleCommand(PassRefPtr<Element>, bool removeOnly, EditAction);
+
+    virtual void doApply();
+    virtual EditAction editingAction() const;
+
+    CSSMutableStyleDeclaration* style() const { return m_style.get(); }
+
+    // style-removal helpers
+    bool shouldRemoveTextDecorationTag(CSSStyleDeclaration* styleToApply, int textDecorationAddedByTag) const;
+    bool implicitlyStyledElementShouldBeRemovedWhenApplyingStyle(HTMLElement*, CSSMutableStyleDeclaration*);
+    void replaceWithSpanOrRemoveIfWithoutAttributes(HTMLElement*&);
+    void removeHTMLFontStyle(CSSMutableStyleDeclaration*, HTMLElement*);
+    void removeHTMLBidiEmbeddingStyle(CSSMutableStyleDeclaration*, HTMLElement*);
+    void removeCSSStyle(CSSMutableStyleDeclaration*, HTMLElement*);
+    void removeInlineStyle(PassRefPtr<CSSMutableStyleDeclaration>, 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;
+    PassRefPtr<CSSMutableStyleDeclaration> extractTextDecorationStyle(Node*);
+    PassRefPtr<CSSMutableStyleDeclaration> extractAndNegateTextDecorationStyle(Node*);
+    void applyTextDecorationStyle(Node*, CSSMutableStyleDeclaration *style);
+    void pushDownTextDecorationStyleAroundNode(Node*, bool forceNegate);
+    void pushDownTextDecorationStyleAtBoundaries(const Position& start, const Position& end);
+    
+    // style-application helpers
+    void applyBlockStyle(CSSMutableStyleDeclaration*);
+    void applyRelativeFontStyleChange(CSSMutableStyleDeclaration*);
+    void applyInlineStyle(CSSMutableStyleDeclaration*);
+    void applyInlineStyleToRange(CSSMutableStyleDeclaration*, const Position& start, const Position& end);
+    void addBlockStyle(const StyleChange&, HTMLElement*);
+    void addInlineStyleIfNeeded(CSSMutableStyleDeclaration*, Node* start, Node* end);
+    bool splitTextAtStartIfNeeded(const Position& start, const Position& end);
+    bool splitTextAtEndIfNeeded(const Position& start, const Position& end);
+    bool splitTextElementAtStartIfNeeded(const Position& start, const Position& end);
+    bool splitTextElementAtEndIfNeeded(const Position& start, const Position& end);
+    bool mergeStartWithPreviousIfIdentical(const Position& start, const Position& end);
+    bool mergeEndWithNextIfIdentical(const Position& start, const Position& end);
+    void cleanupUnstyledAppleStyleSpans(Node* dummySpanAncestor);
+
+    void surroundNodeRangeWithElement(Node* start, Node* end, PassRefPtr<Element>);
+    float computedFontSize(const Node*);
+    void joinChildTextNodes(Node*, const Position& start, const Position& end);
+
+    HTMLElement* splitAncestorsWithUnicodeBidi(Node*, bool before, RefPtr<CSSPrimitiveValue> allowedDirection);
+    void removeEmbeddingUpToEnclosingBlock(Node* node, Node* unsplitAncestor);
+
+    void updateStartEnd(const Position& newStart, const Position& newEnd);
+    Position startPosition();
+    Position endPosition();
+
+    RefPtr<CSSMutableStyleDeclaration> m_style;
+    EditAction m_editingAction;
+    EPropertyLevel m_propertyLevel;
+    Position m_start;
+    Position m_end;
+    bool m_useEndingSelection;
+    RefPtr<Element> m_styledInlineElement;
+    bool m_removeOnly;
+};
+
+bool isStyleSpan(const Node*);
+PassRefPtr<HTMLElement> createStyleSpanElement(Document*);
+RefPtr<CSSMutableStyleDeclaration> getPropertiesNotInComputedStyle(CSSStyleDeclaration* style, CSSComputedStyleDeclaration* computedStyle);
+
+void prepareEditingStyleToApplyAt(CSSMutableStyleDeclaration*, Position);
+void removeStylesAddedByNode(CSSMutableStyleDeclaration*, Node*);
+
+} // namespace WebCore
+
+#endif