| /* |
| * Copyright (C) 2005, 2006 Apple Computer, 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. |
| */ |
| |
| #include "config.h" |
| #include "ApplyStyleCommand.h" |
| |
| #include "CSSComputedStyleDeclaration.h" |
| #include "CSSParser.h" |
| #include "CSSProperty.h" |
| #include "CSSPropertyNames.h" |
| #include "Document.h" |
| #include "HTMLElement.h" |
| #include "HTMLInterchange.h" |
| #include "HTMLNames.h" |
| #include "NodeList.h" |
| #include "Range.h" |
| #include "RenderObject.h" |
| #include "Text.h" |
| #include "TextIterator.h" |
| #include "htmlediting.h" |
| #include "visible_units.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| class StyleChange { |
| public: |
| enum ELegacyHTMLStyles { DoNotUseLegacyHTMLStyles, UseLegacyHTMLStyles }; |
| |
| explicit StyleChange(CSSStyleDeclaration *, ELegacyHTMLStyles usesLegacyStyles=UseLegacyHTMLStyles); |
| StyleChange(CSSStyleDeclaration *, const Position &, ELegacyHTMLStyles usesLegacyStyles=UseLegacyHTMLStyles); |
| |
| static ELegacyHTMLStyles styleModeForParseMode(bool); |
| |
| String cssStyle() const { return m_cssStyle; } |
| bool applyBold() const { return m_applyBold; } |
| bool applyItalic() const { return m_applyItalic; } |
| bool applyFontColor() const { return m_applyFontColor.length() > 0; } |
| bool applyFontFace() const { return m_applyFontFace.length() > 0; } |
| bool applyFontSize() const { return m_applyFontSize.length() > 0; } |
| |
| String fontColor() { return m_applyFontColor; } |
| String fontFace() { return m_applyFontFace; } |
| String fontSize() { return m_applyFontSize; } |
| |
| bool usesLegacyStyles() const { return m_usesLegacyStyles; } |
| |
| private: |
| void init(PassRefPtr<CSSStyleDeclaration>, const Position &); |
| bool checkForLegacyHTMLStyleChange(const CSSProperty *); |
| static bool currentlyHasStyle(const Position &, const CSSProperty *); |
| |
| String m_cssStyle; |
| bool m_applyBold; |
| bool m_applyItalic; |
| String m_applyFontColor; |
| String m_applyFontFace; |
| String m_applyFontSize; |
| bool m_usesLegacyStyles; |
| }; |
| |
| |
| |
| StyleChange::StyleChange(CSSStyleDeclaration *style, ELegacyHTMLStyles usesLegacyStyles) |
| : m_applyBold(false), m_applyItalic(false), m_usesLegacyStyles(usesLegacyStyles) |
| { |
| init(style, Position()); |
| } |
| |
| StyleChange::StyleChange(CSSStyleDeclaration *style, const Position &position, ELegacyHTMLStyles usesLegacyStyles) |
| : m_applyBold(false), m_applyItalic(false), m_usesLegacyStyles(usesLegacyStyles) |
| { |
| init(style, position); |
| } |
| |
| void StyleChange::init(PassRefPtr<CSSStyleDeclaration> style, const Position &position) |
| { |
| RefPtr<CSSMutableStyleDeclaration> mutableStyle = style->makeMutable(); |
| |
| String styleText(""); |
| |
| DeprecatedValueListConstIterator<CSSProperty> end; |
| for (DeprecatedValueListConstIterator<CSSProperty> it = mutableStyle->valuesIterator(); it != end; ++it) { |
| const CSSProperty *property = &*it; |
| |
| // If position is empty or the position passed in already has the |
| // style, just move on. |
| if (position.isNotNull() && currentlyHasStyle(position, property)) |
| continue; |
| |
| // Changing the whitespace style in a tab span would collapse the tab into a space. |
| if (property->id() == CSS_PROP_WHITE_SPACE && (isTabSpanTextNode(position.node()) || isTabSpanNode((position.node())))) |
| continue; |
| |
| // If needed, figure out if this change is a legacy HTML style change. |
| if (m_usesLegacyStyles && checkForLegacyHTMLStyleChange(property)) |
| continue; |
| |
| // Add this property |
| |
| if (property->id() == CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT) { |
| // we have to special-case text decorations |
| CSSProperty alteredProperty = CSSProperty(CSS_PROP_TEXT_DECORATION, property->value(), property->isImportant()); |
| styleText += alteredProperty.cssText(); |
| } else |
| styleText += property->cssText(); |
| } |
| |
| // Save the result for later |
| m_cssStyle = styleText.stripWhiteSpace(); |
| } |
| |
| StyleChange::ELegacyHTMLStyles StyleChange::styleModeForParseMode(bool isQuirksMode) |
| { |
| return isQuirksMode ? UseLegacyHTMLStyles : DoNotUseLegacyHTMLStyles; |
| } |
| |
| bool StyleChange::checkForLegacyHTMLStyleChange(const CSSProperty *property) |
| { |
| if (!property || !property->value()) { |
| return false; |
| } |
| |
| String valueText(property->value()->cssText()); |
| switch (property->id()) { |
| case CSS_PROP_FONT_WEIGHT: |
| if (equalIgnoringCase(valueText, "bold")) { |
| m_applyBold = true; |
| return true; |
| } |
| break; |
| case CSS_PROP_FONT_STYLE: |
| if (equalIgnoringCase(valueText, "italic") || equalIgnoringCase(valueText, "oblique")) { |
| m_applyItalic = true; |
| return true; |
| } |
| break; |
| case CSS_PROP_COLOR: { |
| RGBA32 rgba = 0; |
| CSSParser::parseColor(rgba, valueText); |
| Color color(rgba); |
| m_applyFontColor = color.name(); |
| return true; |
| } |
| case CSS_PROP_FONT_FAMILY: |
| m_applyFontFace = valueText; |
| return true; |
| case CSS_PROP_FONT_SIZE: |
| if (property->value()->cssValueType() == CSSValue::CSS_PRIMITIVE_VALUE) { |
| CSSPrimitiveValue *value = static_cast<CSSPrimitiveValue *>(property->value()); |
| |
| if (value->primitiveType() < CSSPrimitiveValue::CSS_PX || value->primitiveType() > CSSPrimitiveValue::CSS_PC) |
| // Size keyword or relative unit. |
| return false; |
| |
| float number = value->getFloatValue(CSSPrimitiveValue::CSS_PX); |
| if (number <= 9) |
| m_applyFontSize = "1"; |
| else if (number <= 10) |
| m_applyFontSize = "2"; |
| else if (number <= 13) |
| m_applyFontSize = "3"; |
| else if (number <= 16) |
| m_applyFontSize = "4"; |
| else if (number <= 18) |
| m_applyFontSize = "5"; |
| else if (number <= 24) |
| m_applyFontSize = "6"; |
| else |
| m_applyFontSize = "7"; |
| // Huge quirk in Microsft Entourage is that they understand CSS font-size, but also write |
| // out legacy 1-7 values in font tags (I guess for mailers that are not CSS-savvy at all, |
| // like Eudora). Yes, they write out *both*. We need to write out both as well. Return false. |
| return false; |
| } |
| else { |
| // Can't make sense of the number. Put no font size. |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool StyleChange::currentlyHasStyle(const Position &pos, const CSSProperty *property) |
| { |
| ASSERT(pos.isNotNull()); |
| RefPtr<CSSComputedStyleDeclaration> style = pos.computedStyle(); |
| RefPtr<CSSValue> value = style->getPropertyCSSValue(property->id(), DoNotUpdateLayout); |
| if (!value) |
| return false; |
| return equalIgnoringCase(value->cssText(), property->value()->cssText()); |
| } |
| |
| static String &styleSpanClassString() |
| { |
| static String styleSpanClassString = AppleStyleSpanClass; |
| return styleSpanClassString; |
| } |
| |
| bool isStyleSpan(const Node *node) |
| { |
| if (!node || !node->isHTMLElement()) |
| return false; |
| |
| const HTMLElement *elem = static_cast<const HTMLElement *>(node); |
| return elem->hasLocalName(spanAttr) && elem->getAttribute(classAttr) == styleSpanClassString(); |
| } |
| |
| static bool isUnstyledStyleSpan(const Node *node) |
| { |
| if (!node || !node->isHTMLElement() || !node->hasTagName(spanTag)) |
| return false; |
| |
| const HTMLElement *elem = static_cast<const HTMLElement *>(node); |
| CSSMutableStyleDeclaration *inlineStyleDecl = elem->inlineStyleDecl(); |
| return (!inlineStyleDecl || inlineStyleDecl->length() == 0) && elem->getAttribute(classAttr) == styleSpanClassString(); |
| } |
| |
| static bool isEmptyFontTag(const Node *node) |
| { |
| if (!node || !node->hasTagName(fontTag)) |
| return false; |
| |
| const Element *elem = static_cast<const Element *>(node); |
| NamedAttrMap *map = elem->attributes(true); // true for read-only |
| return (!map || map->length() == 1) && elem->getAttribute(classAttr) == styleSpanClassString(); |
| } |
| |
| static PassRefPtr<Element> createFontElement(Document* document) |
| { |
| ExceptionCode ec = 0; |
| RefPtr<Element> fontNode = document->createElementNS(xhtmlNamespaceURI, "font", ec); |
| ASSERT(ec == 0); |
| fontNode->setAttribute(classAttr, styleSpanClassString()); |
| return fontNode.release(); |
| } |
| |
| PassRefPtr<HTMLElement> createStyleSpanElement(Document* document) |
| { |
| ExceptionCode ec = 0; |
| RefPtr<Element> styleElement = document->createElementNS(xhtmlNamespaceURI, "span", ec); |
| ASSERT(ec == 0); |
| styleElement->setAttribute(classAttr, styleSpanClassString()); |
| return static_pointer_cast<HTMLElement>(styleElement.release()); |
| } |
| |
| ApplyStyleCommand::ApplyStyleCommand(Document* document, CSSStyleDeclaration* style, EditAction editingAction, EPropertyLevel propertyLevel) |
| : CompositeEditCommand(document) |
| , m_style(style->makeMutable()) |
| , m_editingAction(editingAction) |
| , m_propertyLevel(propertyLevel) |
| , m_start(endingSelection().start().downstream()) |
| , m_end(endingSelection().end().upstream()) |
| , m_useEndingSelection(true) |
| , m_styledInlineElement(0) |
| , m_removeOnly(false) |
| { |
| } |
| |
| ApplyStyleCommand::ApplyStyleCommand(Document* document, CSSStyleDeclaration* style, const Position& start, const Position& end, EditAction editingAction, EPropertyLevel propertyLevel) |
| : CompositeEditCommand(document) |
| , m_style(style->makeMutable()) |
| , m_editingAction(editingAction) |
| , m_propertyLevel(propertyLevel) |
| , m_start(start) |
| , m_end(end) |
| , m_useEndingSelection(false) |
| , m_styledInlineElement(0) |
| , m_removeOnly(false) |
| { |
| } |
| |
| ApplyStyleCommand::ApplyStyleCommand(Element* element, bool removeOnly, EditAction editingAction) |
| : CompositeEditCommand(element->document()) |
| , m_style(new CSSMutableStyleDeclaration()) |
| , m_editingAction(editingAction) |
| , m_propertyLevel(PropertyDefault) |
| , m_start(endingSelection().start().downstream()) |
| , m_end(endingSelection().end().upstream()) |
| , m_useEndingSelection(true) |
| , m_styledInlineElement(element) |
| , m_removeOnly(removeOnly) |
| { |
| } |
| |
| void ApplyStyleCommand::updateStartEnd(const Position& newStart, const Position& newEnd) |
| { |
| ASSERT(Range::compareBoundaryPoints(newEnd, newStart) >= 0); |
| |
| if (!m_useEndingSelection && (newStart != m_start || newEnd != m_end)) |
| m_useEndingSelection = true; |
| |
| setEndingSelection(Selection(newStart, newEnd, VP_DEFAULT_AFFINITY)); |
| m_start = newStart; |
| m_end = newEnd; |
| } |
| |
| Position ApplyStyleCommand::startPosition() |
| { |
| if (m_useEndingSelection) |
| return endingSelection().start(); |
| |
| return m_start; |
| } |
| |
| Position ApplyStyleCommand::endPosition() |
| { |
| if (m_useEndingSelection) |
| return endingSelection().end(); |
| |
| return m_end; |
| } |
| |
| void ApplyStyleCommand::doApply() |
| { |
| switch (m_propertyLevel) { |
| case PropertyDefault: { |
| // apply the block-centric properties of the style |
| RefPtr<CSSMutableStyleDeclaration> blockStyle = m_style->copyBlockProperties(); |
| if (blockStyle->length()) |
| applyBlockStyle(blockStyle.get()); |
| // apply any remaining styles to the inline elements |
| // NOTE: hopefully, this string comparison is the same as checking for a non-null diff |
| if (blockStyle->length() < m_style->length() || m_styledInlineElement) { |
| RefPtr<CSSMutableStyleDeclaration> inlineStyle = m_style->copy(); |
| applyRelativeFontStyleChange(inlineStyle.get()); |
| blockStyle->diff(inlineStyle.get()); |
| applyInlineStyle(inlineStyle.get()); |
| } |
| break; |
| } |
| case ForceBlockProperties: |
| // Force all properties to be applied as block styles. |
| applyBlockStyle(m_style.get()); |
| break; |
| } |
| } |
| |
| EditAction ApplyStyleCommand::editingAction() const |
| { |
| return m_editingAction; |
| } |
| |
| void ApplyStyleCommand::applyBlockStyle(CSSMutableStyleDeclaration *style) |
| { |
| // update document layout once before removing styles |
| // so that we avoid the expense of updating before each and every call |
| // to check a computed style |
| updateLayout(); |
| |
| // get positions we want to use for applying style |
| Position start = startPosition(); |
| Position end = endPosition(); |
| if (Range::compareBoundaryPoints(end, start) < 0) { |
| Position swap = start; |
| start = end; |
| end = swap; |
| } |
| |
| VisiblePosition visibleStart(start); |
| VisiblePosition visibleEnd(end); |
| // Save and restore the selection endpoints using their indices in the document, since |
| // addBlockStyleIfNeeded may moveParagraphs, which can remove these endpoints. |
| // Calculate start and end indices from the start of the tree that they're in. |
| Node* scope = highestAncestor(visibleStart.deepEquivalent().node()); |
| Position rangeStart(scope, 0); |
| RefPtr<Range> startRange = new Range(document(), rangeStart, rangeCompliantEquivalent(visibleStart.deepEquivalent())); |
| RefPtr<Range> endRange = new Range(document(), rangeStart, rangeCompliantEquivalent(visibleEnd.deepEquivalent())); |
| int startIndex = TextIterator::rangeLength(startRange.get(), true); |
| int endIndex = TextIterator::rangeLength(endRange.get(), true); |
| |
| VisiblePosition paragraphStart(startOfParagraph(visibleStart)); |
| VisiblePosition nextParagraphStart(endOfParagraph(paragraphStart).next()); |
| VisiblePosition beyondEnd(endOfParagraph(visibleEnd).next()); |
| while (paragraphStart.isNotNull() && paragraphStart != beyondEnd) { |
| StyleChange styleChange(style, paragraphStart.deepEquivalent(), StyleChange::styleModeForParseMode(document()->inCompatMode())); |
| if (styleChange.cssStyle().length() > 0 || m_removeOnly) { |
| Node* block = enclosingBlock(paragraphStart.deepEquivalent().node()); |
| Node* newBlock = moveParagraphContentsToNewBlockIfNecessary(paragraphStart.deepEquivalent()); |
| if (newBlock) |
| block = newBlock; |
| ASSERT(block->isHTMLElement()); |
| if (block->isHTMLElement()) { |
| removeCSSStyle(style, static_cast<HTMLElement*>(block)); |
| if (!m_removeOnly) |
| addBlockStyle(styleChange, static_cast<HTMLElement*>(block)); |
| } |
| } |
| paragraphStart = nextParagraphStart; |
| nextParagraphStart = endOfParagraph(paragraphStart).next(); |
| } |
| |
| startRange = TextIterator::rangeFromLocationAndLength(static_cast<Element*>(scope), startIndex, 0, true); |
| endRange = TextIterator::rangeFromLocationAndLength(static_cast<Element*>(scope), endIndex, 0, true); |
| if (startRange && endRange) |
| updateStartEnd(startRange->startPosition(), endRange->startPosition()); |
| } |
| |
| #define NoFontDelta (0.0f) |
| #define MinimumFontSize (0.1f) |
| |
| void ApplyStyleCommand::applyRelativeFontStyleChange(CSSMutableStyleDeclaration *style) |
| { |
| RefPtr<CSSValue> value = style->getPropertyCSSValue(CSS_PROP_FONT_SIZE); |
| if (value) { |
| // Explicit font size overrides any delta. |
| style->removeProperty(CSS_PROP__WEBKIT_FONT_SIZE_DELTA); |
| return; |
| } |
| |
| // Get the adjustment amount out of the style. |
| value = style->getPropertyCSSValue(CSS_PROP__WEBKIT_FONT_SIZE_DELTA); |
| if (!value) |
| return; |
| float adjustment = NoFontDelta; |
| if (value->cssValueType() == CSSValue::CSS_PRIMITIVE_VALUE) { |
| CSSPrimitiveValue *primitiveValue = static_cast<CSSPrimitiveValue *>(value.get()); |
| if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_PX) { |
| // Only PX handled now. If we handle more types in the future, perhaps |
| // a switch statement here would be more appropriate. |
| adjustment = primitiveValue->getFloatValue(); |
| } |
| } |
| style->removeProperty(CSS_PROP__WEBKIT_FONT_SIZE_DELTA); |
| if (adjustment == NoFontDelta) |
| return; |
| |
| Position start = startPosition(); |
| Position end = endPosition(); |
| if (Range::compareBoundaryPoints(end, start) < 0) { |
| Position swap = start; |
| start = end; |
| end = swap; |
| } |
| |
| // Join up any adjacent text nodes. |
| if (start.node()->isTextNode()) { |
| joinChildTextNodes(start.node()->parentNode(), start, end); |
| start = startPosition(); |
| end = endPosition(); |
| } |
| if (end.node()->isTextNode() && start.node()->parentNode() != end.node()->parentNode()) { |
| joinChildTextNodes(end.node()->parentNode(), start, end); |
| start = startPosition(); |
| end = endPosition(); |
| } |
| |
| // Split the start text nodes if needed to apply style. |
| bool splitStart = splitTextAtStartIfNeeded(start, end); |
| if (splitStart) { |
| start = startPosition(); |
| end = endPosition(); |
| } |
| bool splitEnd = splitTextAtEndIfNeeded(start, end); |
| if (splitEnd) { |
| start = startPosition(); |
| end = endPosition(); |
| } |
| |
| // Calculate loop end point. |
| // If the end node is before the start node (can only happen if the end node is |
| // an ancestor of the start node), we gather nodes up to the next sibling of the end node |
| Node *beyondEnd; |
| if (start.node()->isDescendantOf(end.node())) |
| beyondEnd = end.node()->traverseNextSibling(); |
| else |
| beyondEnd = end.node()->traverseNextNode(); |
| |
| start = start.upstream(); // Move upstream to ensure we do not add redundant spans. |
| Node *startNode = start.node(); |
| if (startNode->isTextNode() && start.offset() >= caretMaxOffset(startNode)) // Move out of text node if range does not include its characters. |
| startNode = startNode->traverseNextNode(); |
| |
| // Store away font size before making any changes to the document. |
| // This ensures that changes to one node won't effect another. |
| HashMap<Node*, float> startingFontSizes; |
| for (Node *node = startNode; node != beyondEnd; node = node->traverseNextNode()) |
| startingFontSizes.set(node, computedFontSize(node)); |
| |
| // These spans were added by us. If empty after font size changes, they can be removed. |
| DeprecatedPtrList<Node> unstyledSpans; |
| |
| Node *lastStyledNode = 0; |
| for (Node *node = startNode; node != beyondEnd; node = node->traverseNextNode()) { |
| HTMLElement *elem = 0; |
| if (node->isHTMLElement()) { |
| // Only work on fully selected nodes. |
| if (!nodeFullySelected(node, start, end)) |
| continue; |
| elem = static_cast<HTMLElement *>(node); |
| } else if (node->isTextNode() && node->renderer() && node->parentNode() != lastStyledNode) { |
| // Last styled node was not parent node of this text node, but we wish to style this |
| // text node. To make this possible, add a style span to surround this text node. |
| RefPtr<HTMLElement> span = createStyleSpanElement(document()); |
| insertNodeBefore(span.get(), node); |
| surroundNodeRangeWithElement(node, node, span.get()); |
| elem = span.get(); |
| } else { |
| // Only handle HTML elements and text nodes. |
| continue; |
| } |
| lastStyledNode = node; |
| |
| CSSMutableStyleDeclaration* inlineStyleDecl = elem->getInlineStyleDecl(); |
| float currentFontSize = computedFontSize(node); |
| float desiredFontSize = max(MinimumFontSize, startingFontSizes.get(node) + adjustment); |
| RefPtr<CSSValue> value = inlineStyleDecl->getPropertyCSSValue(CSS_PROP_FONT_SIZE); |
| if (value) { |
| inlineStyleDecl->removeProperty(CSS_PROP_FONT_SIZE, true); |
| currentFontSize = computedFontSize(node); |
| } |
| if (currentFontSize != desiredFontSize) { |
| inlineStyleDecl->setProperty(CSS_PROP_FONT_SIZE, String::number(desiredFontSize) + "px", false, false); |
| setNodeAttribute(elem, styleAttr, inlineStyleDecl->cssText()); |
| } |
| if (inlineStyleDecl->length() == 0) { |
| removeNodeAttribute(elem, styleAttr); |
| if (isUnstyledStyleSpan(elem)) |
| unstyledSpans.append(elem); |
| } |
| } |
| |
| for (DeprecatedPtrListIterator<Node> it(unstyledSpans); it.current(); ++it) |
| removeNodePreservingChildren(it.current()); |
| } |
| |
| #undef NoFontDelta |
| #undef MinimumFontSize |
| |
| static Node* dummySpanAncestorForNode(const Node* node) |
| { |
| while (node && !isStyleSpan(node)) |
| node = node->parent(); |
| |
| return node ? node->parent() : 0; |
| } |
| |
| void ApplyStyleCommand::cleanupUnstyledAppleStyleSpans(Node* dummySpanAncestor) |
| { |
| if (!dummySpanAncestor) |
| return; |
| |
| // Dummy spans are created when text node is split, so that style information |
| // can be propagated, which can result in more splitting. If a dummy span gets |
| // cloned/split, the new node is always a sibling of it. Therefore, we scan |
| // all the children of the dummy's parent |
| Node* next; |
| for (Node* node = dummySpanAncestor->firstChild(); node; node = next) { |
| next = node->nextSibling(); |
| if (isUnstyledStyleSpan(node)) |
| removeNodePreservingChildren(node); |
| node = next; |
| } |
| } |
| |
| void ApplyStyleCommand::applyInlineStyle(CSSMutableStyleDeclaration *style) |
| { |
| Node* startDummySpanAncestor = 0; |
| Node* endDummySpanAncestor = 0; |
| |
| // update document layout once before removing styles |
| // so that we avoid the expense of updating before each and every call |
| // to check a computed style |
| updateLayout(); |
| |
| // adjust to the positions we want to use for applying style |
| Position start = startPosition(); |
| Position end = endPosition(); |
| if (Range::compareBoundaryPoints(end, start) < 0) { |
| Position swap = start; |
| start = end; |
| end = swap; |
| } |
| |
| // split the start node and containing element if the selection starts inside of it |
| bool splitStart = splitTextElementAtStartIfNeeded(start, end); |
| if (splitStart) { |
| start = startPosition(); |
| end = endPosition(); |
| startDummySpanAncestor = dummySpanAncestorForNode(start.node()); |
| } |
| |
| // split the end node and containing element if the selection ends inside of it |
| bool splitEnd = splitTextElementAtEndIfNeeded(start, end); |
| if (splitEnd) { |
| start = startPosition(); |
| end = endPosition(); |
| endDummySpanAncestor = dummySpanAncestorForNode(end.node()); |
| } |
| |
| // Remove style from the selection. |
| // Use the upstream position of the start for removing style. |
| // This will ensure we remove all traces of the relevant styles from the selection |
| // and prevent us from adding redundant ones, as described in: |
| // <rdar://problem/3724344> Bolding and unbolding creates extraneous tags |
| removeInlineStyle(style, start.upstream(), end); |
| start = startPosition(); |
| end = endPosition(); |
| |
| if (splitStart) { |
| bool mergedStart = mergeStartWithPreviousIfIdentical(start, end); |
| if (mergedStart) { |
| start = startPosition(); |
| end = endPosition(); |
| } |
| } |
| |
| if (splitEnd) { |
| mergeEndWithNextIfIdentical(start, end); |
| start = startPosition(); |
| end = endPosition(); |
| } |
| |
| // update document layout once before running the rest of the function |
| // so that we avoid the expense of updating before each and every call |
| // to check a computed style |
| updateLayout(); |
| |
| Node* node = start.node(); |
| |
| bool rangeIsEmpty = false; |
| |
| if (start.offset() >= caretMaxOffset(start.node())) { |
| node = node->traverseNextNode(); |
| Position newStart = Position(node, 0); |
| if (Range::compareBoundaryPoints(end, newStart) < 0) |
| rangeIsEmpty = true; |
| } |
| |
| if (!rangeIsEmpty) { |
| // FIXME: Callers should perform this operation on a Range that includes the br |
| // if they want style applied to the empty line. |
| if (start == end && start.node()->hasTagName(brTag)) |
| end = positionAfterNode(start.node()); |
| // Add the style to selected inline runs. |
| Node* pastEnd = Range(document(), rangeCompliantEquivalent(start), rangeCompliantEquivalent(end)).pastEndNode(); |
| for (Node* next; node && node != pastEnd; node = next) { |
| |
| next = node->traverseNextNode(); |
| |
| if (!node->renderer() || !node->isContentEditable()) |
| continue; |
| |
| if (!node->isContentRichlyEditable() && node->isHTMLElement()) { |
| // This is a plaintext-only region. Only proceed if it's fully selected. |
| if (end.node()->isDescendantOf(node)) |
| break; |
| // Add to this element's inline style and skip over its contents. |
| HTMLElement* element = static_cast<HTMLElement*>(node); |
| RefPtr<CSSMutableStyleDeclaration> inlineStyle = element->getInlineStyleDecl()->copy(); |
| inlineStyle->merge(style); |
| setNodeAttribute(element, styleAttr, inlineStyle->cssText()); |
| next = node->traverseNextSibling(); |
| continue; |
| } |
| |
| if (isBlock(node)) |
| continue; |
| |
| if (node->childNodeCount()) { |
| if (editingIgnoresContent(node)) { |
| next = node->traverseNextSibling(); |
| continue; |
| } |
| continue; |
| } |
| |
| Node* runStart = node; |
| // Find the end of the run. |
| Node* sibling = node->nextSibling(); |
| while (sibling && sibling != pastEnd && (!sibling->isElementNode() || sibling->hasTagName(brTag)) && !isBlock(sibling)) { |
| node = sibling; |
| sibling = node->nextSibling(); |
| } |
| // Recompute next, since node has changed. |
| next = node->traverseNextNode(); |
| // Apply the style to the run. |
| addInlineStyleIfNeeded(style, runStart, node); |
| } |
| } |
| |
| // Remove dummy style spans created by splitting text elements. |
| cleanupUnstyledAppleStyleSpans(startDummySpanAncestor); |
| if (endDummySpanAncestor != startDummySpanAncestor) |
| cleanupUnstyledAppleStyleSpans(endDummySpanAncestor); |
| } |
| |
| bool ApplyStyleCommand::isHTMLStyleNode(CSSMutableStyleDeclaration *style, HTMLElement *elem) |
| { |
| DeprecatedValueListConstIterator<CSSProperty> end; |
| for (DeprecatedValueListConstIterator<CSSProperty> it = style->valuesIterator(); it != end; ++it) { |
| switch ((*it).id()) { |
| case CSS_PROP_FONT_WEIGHT: |
| if (elem->hasLocalName(bTag)) |
| return true; |
| break; |
| case CSS_PROP_FONT_STYLE: |
| if (elem->hasLocalName(iTag)) |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| void ApplyStyleCommand::removeHTMLStyleNode(HTMLElement *elem) |
| { |
| // This node can be removed. |
| // EDIT FIXME: This does not handle the case where the node |
| // has attributes. But how often do people add attributes to <B> tags? |
| // Not so often I think. |
| ASSERT(elem); |
| removeNodePreservingChildren(elem); |
| } |
| |
| void ApplyStyleCommand::removeHTMLFontStyle(CSSMutableStyleDeclaration *style, HTMLElement *elem) |
| { |
| ASSERT(style); |
| ASSERT(elem); |
| |
| if (!elem->hasLocalName(fontTag)) |
| return; |
| |
| DeprecatedValueListConstIterator<CSSProperty> end; |
| for (DeprecatedValueListConstIterator<CSSProperty> it = style->valuesIterator(); it != end; ++it) { |
| switch ((*it).id()) { |
| case CSS_PROP_COLOR: |
| removeNodeAttribute(elem, colorAttr); |
| break; |
| case CSS_PROP_FONT_FAMILY: |
| removeNodeAttribute(elem, faceAttr); |
| break; |
| case CSS_PROP_FONT_SIZE: |
| removeNodeAttribute(elem, sizeAttr); |
| break; |
| } |
| } |
| |
| if (isEmptyFontTag(elem)) |
| removeNodePreservingChildren(elem); |
| } |
| |
| void ApplyStyleCommand::removeCSSStyle(CSSMutableStyleDeclaration *style, HTMLElement *elem) |
| { |
| ASSERT(style); |
| ASSERT(elem); |
| |
| CSSMutableStyleDeclaration *decl = elem->inlineStyleDecl(); |
| if (!decl) |
| return; |
| |
| DeprecatedValueListConstIterator<CSSProperty> end; |
| for (DeprecatedValueListConstIterator<CSSProperty> it = style->valuesIterator(); it != end; ++it) { |
| int propertyID = (*it).id(); |
| RefPtr<CSSValue> value = decl->getPropertyCSSValue(propertyID); |
| if (value && (propertyID != CSS_PROP_WHITE_SPACE || !isTabSpanNode(elem))) |
| removeCSSProperty(decl, propertyID); |
| } |
| |
| if (isUnstyledStyleSpan(elem)) |
| removeNodePreservingChildren(elem); |
| } |
| |
| void ApplyStyleCommand::removeBlockStyle(CSSMutableStyleDeclaration *style, const Position &start, const Position &end) |
| { |
| ASSERT(start.isNotNull()); |
| ASSERT(end.isNotNull()); |
| ASSERT(start.node()->inDocument()); |
| ASSERT(end.node()->inDocument()); |
| ASSERT(Range::compareBoundaryPoints(start, end) <= 0); |
| |
| } |
| |
| static bool hasTextDecorationProperty(Node *node) |
| { |
| if (!node->isElementNode()) |
| return false; |
| |
| Element *element = static_cast<Element *>(node); |
| CSSComputedStyleDeclaration style(element); |
| RefPtr<CSSValue> value = style.getPropertyCSSValue(CSS_PROP_TEXT_DECORATION, DoNotUpdateLayout); |
| return value && !equalIgnoringCase(value->cssText(), "none"); |
| } |
| |
| static Node* highestAncestorWithTextDecoration(Node *node) |
| { |
| Node *result = NULL; |
| |
| for (Node *n = node; n; n = n->parentNode()) { |
| if (hasTextDecorationProperty(n)) |
| result = n; |
| } |
| |
| return result; |
| } |
| |
| PassRefPtr<CSSMutableStyleDeclaration> ApplyStyleCommand::extractTextDecorationStyle(Node* node) |
| { |
| ASSERT(node); |
| ASSERT(node->isElementNode()); |
| |
| // non-html elements not handled yet |
| if (!node->isHTMLElement()) |
| return 0; |
| |
| HTMLElement *element = static_cast<HTMLElement *>(node); |
| RefPtr<CSSMutableStyleDeclaration> style = element->inlineStyleDecl(); |
| if (!style) |
| return 0; |
| |
| int properties[1] = { CSS_PROP_TEXT_DECORATION }; |
| RefPtr<CSSMutableStyleDeclaration> textDecorationStyle = style->copyPropertiesInSet(properties, 1); |
| |
| RefPtr<CSSValue> property = style->getPropertyCSSValue(CSS_PROP_TEXT_DECORATION); |
| if (property && !equalIgnoringCase(property->cssText(), "none")) |
| removeCSSProperty(style.get(), CSS_PROP_TEXT_DECORATION); |
| |
| return textDecorationStyle.release(); |
| } |
| |
| PassRefPtr<CSSMutableStyleDeclaration> ApplyStyleCommand::extractAndNegateTextDecorationStyle(Node *node) |
| { |
| ASSERT(node); |
| ASSERT(node->isElementNode()); |
| |
| // non-html elements not handled yet |
| if (!node->isHTMLElement()) |
| return 0; |
| |
| HTMLElement *element = static_cast<HTMLElement *>(node); |
| RefPtr<CSSComputedStyleDeclaration> computedStyle = new CSSComputedStyleDeclaration(element); |
| ASSERT(computedStyle); |
| |
| int properties[1] = { CSS_PROP_TEXT_DECORATION }; |
| RefPtr<CSSMutableStyleDeclaration> textDecorationStyle = computedStyle->copyPropertiesInSet(properties, 1); |
| |
| RefPtr<CSSValue> property = computedStyle->getPropertyCSSValue(CSS_PROP_TEXT_DECORATION); |
| if (property && !equalIgnoringCase(property->cssText(), "none")) { |
| RefPtr<CSSMutableStyleDeclaration> newStyle = textDecorationStyle->copy(); |
| newStyle->setProperty(CSS_PROP_TEXT_DECORATION, "none"); |
| applyTextDecorationStyle(node, newStyle.get()); |
| } |
| |
| return textDecorationStyle.release(); |
| } |
| |
| void ApplyStyleCommand::applyTextDecorationStyle(Node *node, CSSMutableStyleDeclaration *style) |
| { |
| ASSERT(node); |
| |
| if (!style || !style->cssText().length()) |
| return; |
| |
| if (node->isTextNode()) { |
| RefPtr<HTMLElement> styleSpan = createStyleSpanElement(document()); |
| insertNodeBefore(styleSpan.get(), node); |
| surroundNodeRangeWithElement(node, node, styleSpan.get()); |
| node = styleSpan.get(); |
| } |
| |
| if (!node->isElementNode()) |
| return; |
| |
| HTMLElement *element = static_cast<HTMLElement *>(node); |
| |
| StyleChange styleChange(style, Position(element, 0), StyleChange::styleModeForParseMode(document()->inCompatMode())); |
| if (styleChange.cssStyle().length() > 0) { |
| String cssText = styleChange.cssStyle(); |
| CSSMutableStyleDeclaration *decl = element->inlineStyleDecl(); |
| if (decl) |
| cssText += decl->cssText(); |
| setNodeAttribute(element, styleAttr, cssText); |
| } |
| } |
| |
| void ApplyStyleCommand::pushDownTextDecorationStyleAroundNode(Node *node, const Position &start, const Position &end, bool force) |
| { |
| Node *highestAncestor = highestAncestorWithTextDecoration(node); |
| |
| if (highestAncestor) { |
| Node *nextCurrent; |
| Node *nextChild; |
| for (Node *current = highestAncestor; current != node; current = nextCurrent) { |
| ASSERT(current); |
| |
| nextCurrent = NULL; |
| |
| RefPtr<CSSMutableStyleDeclaration> decoration = force ? extractAndNegateTextDecorationStyle(current) : extractTextDecorationStyle(current); |
| |
| for (Node *child = current->firstChild(); child; child = nextChild) { |
| nextChild = child->nextSibling(); |
| |
| if (node == child) { |
| nextCurrent = child; |
| } else if (node->isDescendantOf(child)) { |
| applyTextDecorationStyle(child, decoration.get()); |
| nextCurrent = child; |
| } else { |
| applyTextDecorationStyle(child, decoration.get()); |
| } |
| } |
| } |
| } |
| } |
| |
| void ApplyStyleCommand::pushDownTextDecorationStyleAtBoundaries(const Position &start, const Position &end) |
| { |
| // We need to work in two passes. First we push down any inline |
| // styles that set text decoration. Then we look for any remaining |
| // styles (caused by stylesheets) and explicitly negate text |
| // decoration while pushing down. |
| |
| pushDownTextDecorationStyleAroundNode(start.node(), start, end, false); |
| updateLayout(); |
| pushDownTextDecorationStyleAroundNode(start.node(), start, end, true); |
| |
| pushDownTextDecorationStyleAroundNode(end.node(), start, end, false); |
| updateLayout(); |
| pushDownTextDecorationStyleAroundNode(end.node(), start, end, true); |
| } |
| |
| static int maxRangeOffset(Node *n) |
| { |
| if (n->offsetInCharacters()) |
| return n->maxCharacterOffset(); |
| |
| if (n->isElementNode()) |
| return n->childNodeCount(); |
| |
| return 1; |
| } |
| |
| void ApplyStyleCommand::removeInlineStyle(PassRefPtr<CSSMutableStyleDeclaration> style, const Position &start, const Position &end) |
| { |
| ASSERT(start.isNotNull()); |
| ASSERT(end.isNotNull()); |
| ASSERT(start.node()->inDocument()); |
| ASSERT(end.node()->inDocument()); |
| ASSERT(Range::compareBoundaryPoints(start, end) <= 0); |
| |
| RefPtr<CSSValue> textDecorationSpecialProperty = style->getPropertyCSSValue(CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT); |
| |
| if (textDecorationSpecialProperty) { |
| pushDownTextDecorationStyleAtBoundaries(start.downstream(), end.upstream()); |
| style = style->copy(); |
| style->setProperty(CSS_PROP_TEXT_DECORATION, textDecorationSpecialProperty->cssText(), style->getPropertyPriority(CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT)); |
| } |
| |
| // The s and e variables store the positions used to set the ending selection after style removal |
| // takes place. This will help callers to recognize when either the start node or the end node |
| // are removed from the document during the work of this function. |
| Position s = start; |
| Position e = end; |
| |
| Node *node = start.node(); |
| while (node) { |
| Node *next = node->traverseNextNode(); |
| if (node->isHTMLElement() && nodeFullySelected(node, start, end)) { |
| HTMLElement *elem = static_cast<HTMLElement *>(node); |
| Node *prev = elem->traversePreviousNodePostOrder(); |
| Node *next = elem->traverseNextNode(); |
| if (m_styledInlineElement && elem->hasTagName(m_styledInlineElement->tagQName())) |
| removeNodePreservingChildren(elem); |
| if (isHTMLStyleNode(style.get(), elem)) |
| removeHTMLStyleNode(elem); |
| else { |
| removeHTMLFontStyle(style.get(), elem); |
| removeCSSStyle(style.get(), elem); |
| } |
| if (!elem->inDocument()) { |
| if (s.node() == elem) { |
| // Since elem must have been fully selected, and it is at the start |
| // of the selection, it is clear we can set the new s offset to 0. |
| ASSERT(s.offset() <= caretMinOffset(s.node())); |
| s = Position(next, 0); |
| } |
| if (e.node() == elem) { |
| // Since elem must have been fully selected, and it is at the end |
| // of the selection, it is clear we can set the new e offset to |
| // the max range offset of prev. |
| ASSERT(e.offset() >= maxRangeOffset(e.node())); |
| e = Position(prev, maxRangeOffset(prev)); |
| } |
| } |
| } |
| if (node == end.node()) |
| break; |
| node = next; |
| } |
| |
| ASSERT(s.node()->inDocument()); |
| ASSERT(e.node()->inDocument()); |
| updateStartEnd(s, e); |
| } |
| |
| bool ApplyStyleCommand::nodeFullySelected(Node *node, const Position &start, const Position &end) const |
| { |
| ASSERT(node); |
| ASSERT(node->isElementNode()); |
| |
| Position pos = Position(node, node->childNodeCount()).upstream(); |
| return Range::compareBoundaryPoints(node, 0, start.node(), start.offset()) >= 0 && |
| Range::compareBoundaryPoints(pos, end) <= 0; |
| } |
| |
| bool ApplyStyleCommand::nodeFullyUnselected(Node *node, const Position &start, const Position &end) const |
| { |
| ASSERT(node); |
| ASSERT(node->isElementNode()); |
| |
| Position pos = Position(node, node->childNodeCount()).upstream(); |
| bool isFullyBeforeStart = Range::compareBoundaryPoints(pos, start) < 0; |
| bool isFullyAfterEnd = Range::compareBoundaryPoints(node, 0, end.node(), end.offset()) > 0; |
| |
| return isFullyBeforeStart || isFullyAfterEnd; |
| } |
| |
| |
| bool ApplyStyleCommand::splitTextAtStartIfNeeded(const Position &start, const Position &end) |
| { |
| if (start.node()->isTextNode() && start.offset() > caretMinOffset(start.node()) && start.offset() < caretMaxOffset(start.node())) { |
| int endOffsetAdjustment = start.node() == end.node() ? start.offset() : 0; |
| Text *text = static_cast<Text *>(start.node()); |
| splitTextNode(text, start.offset()); |
| updateStartEnd(Position(start.node(), 0), Position(end.node(), end.offset() - endOffsetAdjustment)); |
| return true; |
| } |
| return false; |
| } |
| |
| bool ApplyStyleCommand::splitTextAtEndIfNeeded(const Position &start, const Position &end) |
| { |
| if (end.node()->isTextNode() && end.offset() > caretMinOffset(end.node()) && end.offset() < caretMaxOffset(end.node())) { |
| Text *text = static_cast<Text *>(end.node()); |
| splitTextNode(text, end.offset()); |
| |
| Node *prevNode = text->previousSibling(); |
| ASSERT(prevNode); |
| Node *startNode = start.node() == end.node() ? prevNode : start.node(); |
| ASSERT(startNode); |
| updateStartEnd(Position(startNode, start.offset()), Position(prevNode, caretMaxOffset(prevNode))); |
| return true; |
| } |
| return false; |
| } |
| |
| bool ApplyStyleCommand::splitTextElementAtStartIfNeeded(const Position &start, const Position &end) |
| { |
| if (start.node()->isTextNode() && start.offset() > caretMinOffset(start.node()) && start.offset() < caretMaxOffset(start.node())) { |
| int endOffsetAdjustment = start.node() == end.node() ? start.offset() : 0; |
| Text *text = static_cast<Text *>(start.node()); |
| splitTextNodeContainingElement(text, start.offset()); |
| |
| updateStartEnd(Position(start.node()->parentNode(), start.node()->nodeIndex()), Position(end.node(), end.offset() - endOffsetAdjustment)); |
| return true; |
| } |
| return false; |
| } |
| |
| bool ApplyStyleCommand::splitTextElementAtEndIfNeeded(const Position &start, const Position &end) |
| { |
| if (end.node()->isTextNode() && end.offset() > caretMinOffset(end.node()) && end.offset() < caretMaxOffset(end.node())) { |
| Text *text = static_cast<Text *>(end.node()); |
| splitTextNodeContainingElement(text, end.offset()); |
| |
| Node *prevNode = text->parent()->previousSibling()->lastChild(); |
| ASSERT(prevNode); |
| Node *startNode = start.node() == end.node() ? prevNode : start.node(); |
| ASSERT(startNode); |
| updateStartEnd(Position(startNode, start.offset()), Position(prevNode->parent(), prevNode->nodeIndex() + 1)); |
| return true; |
| } |
| return false; |
| } |
| |
| static bool areIdenticalElements(Node *first, Node *second) |
| { |
| // check that tag name and all attribute names and values are identical |
| |
| if (!first->isElementNode()) |
| return false; |
| |
| if (!second->isElementNode()) |
| return false; |
| |
| Element *firstElement = static_cast<Element *>(first); |
| Element *secondElement = static_cast<Element *>(second); |
| |
| if (!firstElement->tagQName().matches(secondElement->tagQName())) |
| return false; |
| |
| NamedAttrMap *firstMap = firstElement->attributes(); |
| NamedAttrMap *secondMap = secondElement->attributes(); |
| |
| unsigned firstLength = firstMap->length(); |
| |
| if (firstLength != secondMap->length()) |
| return false; |
| |
| for (unsigned i = 0; i < firstLength; i++) { |
| Attribute *attribute = firstMap->attributeItem(i); |
| Attribute *secondAttribute = secondMap->getAttributeItem(attribute->name()); |
| |
| if (!secondAttribute || attribute->value() != secondAttribute->value()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ApplyStyleCommand::mergeStartWithPreviousIfIdentical(const Position &start, const Position &end) |
| { |
| Node *startNode = start.node(); |
| int startOffset = start.offset(); |
| |
| if (isAtomicNode(start.node())) { |
| if (start.offset() != 0) |
| return false; |
| |
| // note: prior siblings could be unrendered elements. it's silly to miss the |
| // merge opportunity just for that. |
| if (start.node()->previousSibling()) |
| return false; |
| |
| startNode = start.node()->parent(); |
| startOffset = 0; |
| } |
| |
| if (!startNode->isElementNode()) |
| return false; |
| |
| if (startOffset != 0) |
| return false; |
| |
| Node *previousSibling = startNode->previousSibling(); |
| |
| if (previousSibling && areIdenticalElements(startNode, previousSibling)) { |
| Element *previousElement = static_cast<Element *>(previousSibling); |
| Element *element = static_cast<Element *>(startNode); |
| Node *startChild = element->firstChild(); |
| ASSERT(startChild); |
| mergeIdenticalElements(previousElement, element); |
| |
| int startOffsetAdjustment = startChild->nodeIndex(); |
| int endOffsetAdjustment = startNode == end.node() ? startOffsetAdjustment : 0; |
| updateStartEnd(Position(startNode, startOffsetAdjustment), Position(end.node(), end.offset() + endOffsetAdjustment)); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool ApplyStyleCommand::mergeEndWithNextIfIdentical(const Position &start, const Position &end) |
| { |
| Node *endNode = end.node(); |
| int endOffset = end.offset(); |
| |
| if (isAtomicNode(endNode)) { |
| if (endOffset < caretMaxOffset(endNode)) |
| return false; |
| |
| unsigned parentLastOffset = end.node()->parent()->childNodes()->length() - 1; |
| if (end.node()->nextSibling()) |
| return false; |
| |
| endNode = end.node()->parent(); |
| endOffset = parentLastOffset; |
| } |
| |
| if (!endNode->isElementNode() || endNode->hasTagName(brTag)) |
| return false; |
| |
| Node *nextSibling = endNode->nextSibling(); |
| |
| if (nextSibling && areIdenticalElements(endNode, nextSibling)) { |
| Element *nextElement = static_cast<Element *>(nextSibling); |
| Element *element = static_cast<Element *>(endNode); |
| Node *nextChild = nextElement->firstChild(); |
| |
| mergeIdenticalElements(element, nextElement); |
| |
| Node *startNode = start.node() == endNode ? nextElement : start.node(); |
| ASSERT(startNode); |
| |
| int endOffset = nextChild ? nextChild->nodeIndex() : nextElement->childNodes()->length(); |
| updateStartEnd(Position(startNode, start.offset()), Position(nextElement, endOffset)); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| void ApplyStyleCommand::surroundNodeRangeWithElement(Node *startNode, Node *endNode, Element *element) |
| { |
| ASSERT(startNode); |
| ASSERT(endNode); |
| ASSERT(element); |
| |
| Node *node = startNode; |
| while (1) { |
| Node *next = node->traverseNextNode(); |
| if (node->childNodeCount() == 0 && node->renderer() && node->renderer()->isInline()) { |
| removeNode(node); |
| appendNode(node, element); |
| } |
| if (node == endNode) |
| break; |
| node = next; |
| } |
| } |
| |
| void ApplyStyleCommand::addBlockStyle(const StyleChange& styleChange, HTMLElement* block) |
| { |
| // Do not check for legacy styles here. Those styles, like <B> and <I>, only apply for |
| // inline content. |
| if (!block) |
| return; |
| |
| String cssText = styleChange.cssStyle(); |
| CSSMutableStyleDeclaration* decl = block->inlineStyleDecl(); |
| if (decl) |
| cssText += decl->cssText(); |
| setNodeAttribute(block, styleAttr, cssText); |
| } |
| |
| void ApplyStyleCommand::addInlineStyleIfNeeded(CSSMutableStyleDeclaration *style, Node *startNode, Node *endNode) |
| { |
| if (m_removeOnly) |
| return; |
| |
| StyleChange styleChange(style, Position(startNode, 0), StyleChange::styleModeForParseMode(document()->inCompatMode())); |
| ExceptionCode ec = 0; |
| |
| // |
| // Font tags need to go outside of CSS so that CSS font sizes override leagcy font sizes. |
| // |
| if (styleChange.applyFontColor() || styleChange.applyFontFace() || styleChange.applyFontSize()) { |
| RefPtr<Element> fontElement = createFontElement(document()); |
| ASSERT(ec == 0); |
| insertNodeBefore(fontElement.get(), startNode); |
| if (styleChange.applyFontColor()) |
| fontElement->setAttribute(colorAttr, styleChange.fontColor()); |
| if (styleChange.applyFontFace()) |
| fontElement->setAttribute(faceAttr, styleChange.fontFace()); |
| if (styleChange.applyFontSize()) |
| fontElement->setAttribute(sizeAttr, styleChange.fontSize()); |
| surroundNodeRangeWithElement(startNode, endNode, fontElement.get()); |
| } |
| |
| if (styleChange.cssStyle().length() > 0) { |
| RefPtr<Element> styleElement = createStyleSpanElement(document()); |
| styleElement->setAttribute(styleAttr, styleChange.cssStyle()); |
| insertNodeBefore(styleElement.get(), startNode); |
| surroundNodeRangeWithElement(startNode, endNode, styleElement.get()); |
| } |
| |
| if (styleChange.applyBold()) { |
| RefPtr<Element> boldElement = document()->createElementNS(xhtmlNamespaceURI, "b", ec); |
| ASSERT(ec == 0); |
| insertNodeBefore(boldElement.get(), startNode); |
| surroundNodeRangeWithElement(startNode, endNode, boldElement.get()); |
| } |
| |
| if (styleChange.applyItalic()) { |
| RefPtr<Element> italicElement = document()->createElementNS(xhtmlNamespaceURI, "i", ec); |
| ASSERT(ec == 0); |
| insertNodeBefore(italicElement.get(), startNode); |
| surroundNodeRangeWithElement(startNode, endNode, italicElement.get()); |
| } |
| |
| if (m_styledInlineElement) { |
| RefPtr<Element> clonedElement = static_pointer_cast<Element>(m_styledInlineElement->cloneNode(false)); |
| insertNodeBefore(clonedElement.get(), startNode); |
| surroundNodeRangeWithElement(startNode, endNode, clonedElement.get()); |
| } |
| } |
| |
| float ApplyStyleCommand::computedFontSize(const Node *node) |
| { |
| if (!node) |
| return 0; |
| |
| Position pos(const_cast<Node *>(node), 0); |
| RefPtr<CSSComputedStyleDeclaration> computedStyle = pos.computedStyle(); |
| if (!computedStyle) |
| return 0; |
| |
| RefPtr<CSSPrimitiveValue> value = static_pointer_cast<CSSPrimitiveValue>(computedStyle->getPropertyCSSValue(CSS_PROP_FONT_SIZE)); |
| if (!value) |
| return 0; |
| |
| return value->getFloatValue(CSSPrimitiveValue::CSS_PX); |
| } |
| |
| void ApplyStyleCommand::joinChildTextNodes(Node *node, const Position &start, const Position &end) |
| { |
| if (!node) |
| return; |
| |
| Position newStart = start; |
| Position newEnd = end; |
| |
| Node *child = node->firstChild(); |
| while (child) { |
| Node *next = child->nextSibling(); |
| if (child->isTextNode() && next && next->isTextNode()) { |
| Text *childText = static_cast<Text *>(child); |
| Text *nextText = static_cast<Text *>(next); |
| if (next == start.node()) |
| newStart = Position(childText, childText->length() + start.offset()); |
| if (next == end.node()) |
| newEnd = Position(childText, childText->length() + end.offset()); |
| String textToMove = nextText->data(); |
| insertTextIntoNode(childText, childText->length(), textToMove); |
| removeNode(next); |
| // don't move child node pointer. it may want to merge with more text nodes. |
| } |
| else { |
| child = child->nextSibling(); |
| } |
| } |
| |
| updateStartEnd(newStart, newEnd); |
| } |
| |
| } |
