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Diffstat (limited to 'WebCore/editing/markup.cpp')
| -rw-r--r-- | WebCore/editing/markup.cpp | 1219 |
1 files changed, 0 insertions, 1219 deletions
diff --git a/WebCore/editing/markup.cpp b/WebCore/editing/markup.cpp deleted file mode 100644 index b067002..0000000 --- a/WebCore/editing/markup.cpp +++ /dev/null @@ -1,1219 +0,0 @@ -/* - * Copyright (C) 2004, 2005, 2006, 2007, 2008 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. - */ - -#include "config.h" -#include "markup.h" - -#include "CDATASection.h" -#include "CharacterNames.h" -#include "Comment.h" -#include "CSSComputedStyleDeclaration.h" -#include "CSSPrimitiveValue.h" -#include "CSSProperty.h" -#include "CSSPropertyNames.h" -#include "CSSRule.h" -#include "CSSRuleList.h" -#include "CSSStyleRule.h" -#include "CSSStyleSelector.h" -#include "CSSValue.h" -#include "CSSValueKeywords.h" -#include "DeleteButtonController.h" -#include "Document.h" -#include "DocumentFragment.h" -#include "DocumentType.h" -#include "Editor.h" -#include "Frame.h" -#include "HTMLElement.h" -#include "HTMLNames.h" -#include "InlineTextBox.h" -#include "Logging.h" -#include "ProcessingInstruction.h" -#include "QualifiedName.h" -#include "Range.h" -#include "Selection.h" -#include "TextIterator.h" -#include "htmlediting.h" -#include "visible_units.h" - -using namespace std; - -namespace WebCore { - -using namespace HTMLNames; - -static inline bool shouldSelfClose(const Node *node); - -class AttributeChange { -public: - AttributeChange() - : m_name(nullAtom, nullAtom, nullAtom) - { - } - - AttributeChange(PassRefPtr<Element> element, const QualifiedName& name, const String& value) - : m_element(element), m_name(name), m_value(value) - { - } - - void apply() - { - m_element->setAttribute(m_name, m_value); - } - -private: - RefPtr<Element> m_element; - QualifiedName m_name; - String m_value; -}; - -static void appendAttributeValue(Vector<UChar>& result, const String& attr, bool escapeNBSP) -{ - const UChar* uchars = attr.characters(); - unsigned len = attr.length(); - unsigned lastCopiedFrom = 0; - - static const String ampEntity("&"); - static const String gtEntity(">"); - static const String ltEntity("<"); - static const String quotEntity("""); - static const String nbspEntity(" "); - - for (unsigned i = 0; i < len; ++i) { - UChar c = uchars[i]; - switch (c) { - case '&': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, ampEntity); - lastCopiedFrom = i + 1; - break; - case '<': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, ltEntity); - lastCopiedFrom = i + 1; - break; - case '>': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, gtEntity); - lastCopiedFrom = i + 1; - break; - case '"': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, quotEntity); - lastCopiedFrom = i + 1; - break; - case noBreakSpace: - if (escapeNBSP) { - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, nbspEntity); - lastCopiedFrom = i + 1; - } - break; - } - } - - result.append(uchars + lastCopiedFrom, len - lastCopiedFrom); -} - -static void appendEscapedContent(Vector<UChar>& result, pair<const UChar*, size_t> range, bool escapeNBSP) -{ - const UChar* uchars = range.first; - unsigned len = range.second; - unsigned lastCopiedFrom = 0; - - static const String ampEntity("&"); - static const String gtEntity(">"); - static const String ltEntity("<"); - static const String nbspEntity(" "); - - for (unsigned i = 0; i < len; ++i) { - UChar c = uchars[i]; - switch (c) { - case '&': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, ampEntity); - lastCopiedFrom = i + 1; - break; - case '<': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, ltEntity); - lastCopiedFrom = i + 1; - break; - case '>': - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, gtEntity); - lastCopiedFrom = i + 1; - break; - case noBreakSpace: - if (escapeNBSP) { - result.append(uchars + lastCopiedFrom, i - lastCopiedFrom); - append(result, nbspEntity); - lastCopiedFrom = i + 1; - } - break; - } - } - - result.append(uchars + lastCopiedFrom, len - lastCopiedFrom); -} - -static String escapeContentText(const String& in, bool escapeNBSP) -{ - Vector<UChar> buffer; - appendEscapedContent(buffer, make_pair(in.characters(), in.length()), escapeNBSP); - return String::adopt(buffer); -} - -static void appendQuotedURLAttributeValue(Vector<UChar>& result, const String& urlString) -{ - UChar quoteChar = '\"'; - String strippedURLString = urlString.stripWhiteSpace(); - if (protocolIs(strippedURLString, "javascript")) { - // minimal escaping for javascript urls - if (strippedURLString.contains('"')) { - if (strippedURLString.contains('\'')) - strippedURLString.replace('\"', """); - else - quoteChar = '\''; - } - result.append(quoteChar); - append(result, strippedURLString); - result.append(quoteChar); - return; - } - - // FIXME: This does not fully match other browsers. Firefox percent-escapes non-ASCII characters for innerHTML. - result.append(quoteChar); - appendAttributeValue(result, urlString, false); - result.append(quoteChar); -} - -static String stringValueForRange(const Node* node, const Range* range) -{ - if (!range) - return node->nodeValue(); - - String str = node->nodeValue(); - ExceptionCode ec; - if (node == range->endContainer(ec)) - str.truncate(range->endOffset(ec)); - if (node == range->startContainer(ec)) - str.remove(0, range->startOffset(ec)); - return str; -} - -static inline pair<const UChar*, size_t> ucharRange(const Node *node, const Range *range) -{ - String str = node->nodeValue(); - const UChar* characters = str.characters(); - size_t length = str.length(); - - if (range) { - ExceptionCode ec; - if (node == range->endContainer(ec)) - length = range->endOffset(ec); - if (node == range->startContainer(ec)) { - size_t start = range->startOffset(ec); - characters += start; - length -= start; - } - } - - return make_pair(characters, length); -} - -static inline void appendUCharRange(Vector<UChar>& result, const pair<const UChar*, size_t> range) -{ - result.append(range.first, range.second); -} - -static String renderedText(const Node* node, const Range* range) -{ - if (!node->isTextNode()) - return String(); - - ExceptionCode ec; - const Text* textNode = static_cast<const Text*>(node); - unsigned startOffset = 0; - unsigned endOffset = textNode->length(); - - if (range && node == range->startContainer(ec)) - startOffset = range->startOffset(ec); - if (range && node == range->endContainer(ec)) - endOffset = range->endOffset(ec); - - Position start(const_cast<Node*>(node), startOffset); - Position end(const_cast<Node*>(node), endOffset); - return plainText(Range::create(node->document(), start, end).get()); -} - -static PassRefPtr<CSSMutableStyleDeclaration> styleFromMatchedRulesForElement(Element* element, bool authorOnly = true) -{ - RefPtr<CSSMutableStyleDeclaration> style = CSSMutableStyleDeclaration::create(); - RefPtr<CSSRuleList> matchedRules = element->document()->styleSelector()->styleRulesForElement(element, authorOnly); - if (matchedRules) { - for (unsigned i = 0; i < matchedRules->length(); i++) { - if (matchedRules->item(i)->type() == CSSRule::STYLE_RULE) { - RefPtr<CSSMutableStyleDeclaration> s = static_cast<CSSStyleRule*>(matchedRules->item(i))->style(); - style->merge(s.get(), true); - } - } - } - - return style.release(); -} - -static void removeEnclosingMailBlockquoteStyle(CSSMutableStyleDeclaration* style, Node* node) -{ - Node* blockquote = nearestMailBlockquote(node); - if (!blockquote || !blockquote->parentNode()) - return; - - RefPtr<CSSMutableStyleDeclaration> parentStyle = Position(blockquote->parentNode(), 0).computedStyle()->copyInheritableProperties(); - RefPtr<CSSMutableStyleDeclaration> blockquoteStyle = Position(blockquote, 0).computedStyle()->copyInheritableProperties(); - parentStyle->diff(blockquoteStyle.get()); - blockquoteStyle->diff(style); -} - -static void removeDefaultStyles(CSSMutableStyleDeclaration* style, Document* document) -{ - if (!document || !document->documentElement()) - return; - - RefPtr<CSSMutableStyleDeclaration> documentStyle = computedStyle(document->documentElement())->copyInheritableProperties(); - documentStyle->diff(style); -} - -static bool shouldAddNamespaceElem(const Element* elem) -{ - // Don't add namespace attribute if it is already defined for this elem. - const AtomicString& prefix = elem->prefix(); - AtomicString attr = !prefix.isEmpty() ? "xmlns:" + prefix : "xmlns"; - return !elem->hasAttribute(attr); -} - -static bool shouldAddNamespaceAttr(const Attribute* attr, HashMap<AtomicStringImpl*, AtomicStringImpl*>& namespaces) -{ - // Don't add namespace attributes twice - static const AtomicString xmlnsURI = "http://www.w3.org/2000/xmlns/"; - static const QualifiedName xmlnsAttr(nullAtom, "xmlns", xmlnsURI); - if (attr->name() == xmlnsAttr) { - namespaces.set(emptyAtom.impl(), attr->value().impl()); - return false; - } - - QualifiedName xmlnsPrefixAttr("xmlns", attr->localName(), xmlnsURI); - if (attr->name() == xmlnsPrefixAttr) { - namespaces.set(attr->localName().impl(), attr->value().impl()); - return false; - } - - return true; -} - -static void appendNamespace(Vector<UChar>& result, const AtomicString& prefix, const AtomicString& ns, HashMap<AtomicStringImpl*, AtomicStringImpl*>& namespaces) -{ - if (ns.isEmpty()) - return; - - // Use emptyAtoms's impl() for both null and empty strings since the HashMap can't handle 0 as a key - AtomicStringImpl* pre = prefix.isEmpty() ? emptyAtom.impl() : prefix.impl(); - AtomicStringImpl* foundNS = namespaces.get(pre); - if (foundNS != ns.impl()) { - namespaces.set(pre, ns.impl()); - static const String xmlns("xmlns"); - result.append(' '); - append(result, xmlns); - if (!prefix.isEmpty()) { - result.append(':'); - append(result, prefix); - } - - result.append('='); - result.append('"'); - appendAttributeValue(result, ns, false); - result.append('"'); - } -} - -static void appendDocumentType(Vector<UChar>& result, const DocumentType* n) -{ - if (n->name().isEmpty()) - return; - - append(result, "<!DOCTYPE "); - append(result, n->name()); - if (!n->publicId().isEmpty()) { - append(result, " PUBLIC \""); - append(result, n->publicId()); - append(result, "\""); - if (!n->systemId().isEmpty()) { - append(result, " \""); - append(result, n->systemId()); - append(result, "\""); - } - } else if (!n->systemId().isEmpty()) { - append(result, " SYSTEM \""); - append(result, n->systemId()); - append(result, "\""); - } - if (!n->internalSubset().isEmpty()) { - append(result, " ["); - append(result, n->internalSubset()); - append(result, "]"); - } - append(result, ">"); -} - -static void appendStartMarkup(Vector<UChar>& result, const Node *node, const Range *range, EAnnotateForInterchange annotate, bool convertBlocksToInlines = false, HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces = 0) -{ - bool documentIsHTML = node->document()->isHTMLDocument(); - switch (node->nodeType()) { - case Node::TEXT_NODE: { - if (Node* parent = node->parentNode()) { - if (parent->hasTagName(scriptTag) - || parent->hasTagName(styleTag) - || parent->hasTagName(textareaTag) - || parent->hasTagName(xmpTag)) { - appendUCharRange(result, ucharRange(node, range)); - break; - } - } - if (!annotate) { - appendEscapedContent(result, ucharRange(node, range), documentIsHTML); - break; - } - - bool useRenderedText = !enclosingNodeWithTag(Position(const_cast<Node*>(node), 0), selectTag); - String markup = escapeContentText(useRenderedText ? renderedText(node, range) : stringValueForRange(node, range), false); - if (annotate) - markup = convertHTMLTextToInterchangeFormat(markup, static_cast<const Text*>(node)); - append(result, markup); - break; - } - case Node::COMMENT_NODE: - // FIXME: Comment content is not escaped, but XMLSerializer (and possibly other callers) should raise an exception if it includes "-->". - append(result, "<!--"); - append(result, static_cast<const Comment*>(node)->nodeValue()); - append(result, "-->"); - break; - case Node::DOCUMENT_NODE: - case Node::DOCUMENT_FRAGMENT_NODE: - break; - case Node::DOCUMENT_TYPE_NODE: - appendDocumentType(result, static_cast<const DocumentType*>(node)); - break; - case Node::PROCESSING_INSTRUCTION_NODE: { - // FIXME: PI data is not escaped, but XMLSerializer (and possibly other callers) this should raise an exception if it includes "?>". - const ProcessingInstruction* n = static_cast<const ProcessingInstruction*>(node); - append(result, "<?"); - append(result, n->target()); - append(result, " "); - append(result, n->data()); - append(result, "?>"); - break; - } - case Node::ELEMENT_NODE: { - result.append('<'); - const Element* el = static_cast<const Element*>(node); - bool convert = convertBlocksToInlines & isBlock(const_cast<Node*>(node)); - append(result, el->nodeNamePreservingCase()); - NamedAttrMap *attrs = el->attributes(); - unsigned length = attrs->length(); - if (!documentIsHTML && namespaces && shouldAddNamespaceElem(el)) - appendNamespace(result, el->prefix(), el->namespaceURI(), *namespaces); - - for (unsigned int i = 0; i < length; i++) { - Attribute *attr = attrs->attributeItem(i); - // We'll handle the style attribute separately, below. - if (attr->name() == styleAttr && el->isHTMLElement() && (annotate || convert)) - continue; - result.append(' '); - - if (documentIsHTML) - append(result, attr->name().localName()); - else - append(result, attr->name().toString()); - - result.append('='); - - if (el->isURLAttribute(attr)) - appendQuotedURLAttributeValue(result, attr->value()); - else { - result.append('\"'); - appendAttributeValue(result, attr->value(), documentIsHTML); - result.append('\"'); - } - - if (!documentIsHTML && namespaces && shouldAddNamespaceAttr(attr, *namespaces)) - appendNamespace(result, attr->prefix(), attr->namespaceURI(), *namespaces); - } - - if (el->isHTMLElement() && (annotate || convert)) { - Element* element = const_cast<Element*>(el); - RefPtr<CSSMutableStyleDeclaration> style = static_cast<HTMLElement*>(element)->getInlineStyleDecl()->copy(); - if (annotate) { - RefPtr<CSSMutableStyleDeclaration> styleFromMatchedRules = styleFromMatchedRulesForElement(const_cast<Element*>(el)); - // Styles from the inline style declaration, held in the variable "style", take precedence - // over those from matched rules. - styleFromMatchedRules->merge(style.get()); - style = styleFromMatchedRules; - - RefPtr<CSSComputedStyleDeclaration> computedStyleForElement = computedStyle(element); - RefPtr<CSSMutableStyleDeclaration> fromComputedStyle = CSSMutableStyleDeclaration::create(); - - DeprecatedValueListConstIterator<CSSProperty> end; - for (DeprecatedValueListConstIterator<CSSProperty> it = style->valuesIterator(); it != end; ++it) { - const CSSProperty& property = *it; - CSSValue* value = property.value(); - // The property value, if it's a percentage, may not reflect the actual computed value. - // For example: style="height: 1%; overflow: visible;" in quirksmode - // FIXME: There are others like this, see <rdar://problem/5195123> Slashdot copy/paste fidelity problem - if (value->cssValueType() == CSSValue::CSS_PRIMITIVE_VALUE) - if (static_cast<CSSPrimitiveValue*>(value)->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE) - if (RefPtr<CSSValue> computedPropertyValue = computedStyleForElement->getPropertyCSSValue(property.id())) - fromComputedStyle->addParsedProperty(CSSProperty(property.id(), computedPropertyValue)); - } - - style->merge(fromComputedStyle.get()); - } - if (convert) - style->setProperty(CSSPropertyDisplay, CSSValueInline, true); - if (style->length() > 0) { - static const String stylePrefix(" style=\""); - append(result, stylePrefix); - appendAttributeValue(result, style->cssText(), documentIsHTML); - result.append('\"'); - } - } - - if (shouldSelfClose(el)) { - if (el->isHTMLElement()) - result.append(' '); // XHTML 1.0 <-> HTML compatibility. - result.append('/'); - } - result.append('>'); - break; - } - case Node::CDATA_SECTION_NODE: { - // FIXME: CDATA content is not escaped, but XMLSerializer (and possibly other callers) should raise an exception if it includes "]]>". - const CDATASection* n = static_cast<const CDATASection*>(node); - append(result, "<![CDATA["); - append(result, n->data()); - append(result, "]]>"); - break; - } - case Node::ATTRIBUTE_NODE: - case Node::ENTITY_NODE: - case Node::ENTITY_REFERENCE_NODE: - case Node::NOTATION_NODE: - case Node::XPATH_NAMESPACE_NODE: - ASSERT_NOT_REACHED(); - break; - } -} - -static String getStartMarkup(const Node *node, const Range *range, EAnnotateForInterchange annotate, bool convertBlocksToInlines = false, HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces = 0) -{ - Vector<UChar> result; - appendStartMarkup(result, node, range, annotate, convertBlocksToInlines, namespaces); - return String::adopt(result); -} - -static inline bool doesHTMLForbidEndTag(const Node *node) -{ - if (node->isHTMLElement()) { - const HTMLElement* htmlElt = static_cast<const HTMLElement*>(node); - return (htmlElt->endTagRequirement() == TagStatusForbidden); - } - return false; -} - -// Rules of self-closure -// 1. No elements in HTML documents use the self-closing syntax. -// 2. Elements w/ children never self-close because they use a separate end tag. -// 3. HTML elements which do not have a "forbidden" end tag will close with a separate end tag. -// 4. Other elements self-close. -static inline bool shouldSelfClose(const Node *node) -{ - if (node->document()->isHTMLDocument()) - return false; - if (node->hasChildNodes()) - return false; - if (node->isHTMLElement() && !doesHTMLForbidEndTag(node)) - return false; - return true; -} - -static void appendEndMarkup(Vector<UChar>& result, const Node* node) -{ - if (!node->isElementNode() || shouldSelfClose(node) || (!node->hasChildNodes() && doesHTMLForbidEndTag(node))) - return; - - result.append('<'); - result.append('/'); - append(result, static_cast<const Element*>(node)->nodeNamePreservingCase()); - result.append('>'); -} - -static String getEndMarkup(const Node *node) -{ - Vector<UChar> result; - appendEndMarkup(result, node); - return String::adopt(result); -} - -static void appendMarkup(Vector<UChar>& result, Node* startNode, bool onlyIncludeChildren, Vector<Node*>* nodes, const HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces = 0) -{ - HashMap<AtomicStringImpl*, AtomicStringImpl*> namespaceHash; - if (namespaces) - namespaceHash = *namespaces; - - if (!onlyIncludeChildren) { - if (nodes) - nodes->append(startNode); - - appendStartMarkup(result,startNode, 0, DoNotAnnotateForInterchange, false, &namespaceHash); - } - // print children - if (!(startNode->document()->isHTMLDocument() && doesHTMLForbidEndTag(startNode))) - for (Node* current = startNode->firstChild(); current; current = current->nextSibling()) - appendMarkup(result, current, false, nodes, &namespaceHash); - - // Print my ending tag - if (!onlyIncludeChildren) - appendEndMarkup(result, startNode); -} - -static void completeURLs(Node* node, const String& baseURL) -{ - Vector<AttributeChange> changes; - - KURL parsedBaseURL(baseURL); - - Node* end = node->traverseNextSibling(); - for (Node* n = node; n != end; n = n->traverseNextNode()) { - if (n->isElementNode()) { - Element* e = static_cast<Element*>(n); - NamedAttrMap* attrs = e->attributes(); - unsigned length = attrs->length(); - for (unsigned i = 0; i < length; i++) { - Attribute* attr = attrs->attributeItem(i); - if (e->isURLAttribute(attr)) - changes.append(AttributeChange(e, attr->name(), KURL(parsedBaseURL, attr->value()).string())); - } - } - } - - size_t numChanges = changes.size(); - for (size_t i = 0; i < numChanges; ++i) - changes[i].apply(); -} - -static bool needInterchangeNewlineAfter(const VisiblePosition& v) -{ - VisiblePosition next = v.next(); - Node* upstreamNode = next.deepEquivalent().upstream().node(); - Node* downstreamNode = v.deepEquivalent().downstream().node(); - // Add an interchange newline if a paragraph break is selected and a br won't already be added to the markup to represent it. - return isEndOfParagraph(v) && isStartOfParagraph(next) && !(upstreamNode->hasTagName(brTag) && upstreamNode == downstreamNode); -} - -static PassRefPtr<CSSMutableStyleDeclaration> styleFromMatchedRulesAndInlineDecl(const Node* node) -{ - if (!node->isHTMLElement()) - return 0; - - // FIXME: Having to const_cast here is ugly, but it is quite a bit of work to untangle - // the non-const-ness of styleFromMatchedRulesForElement. - HTMLElement* element = const_cast<HTMLElement*>(static_cast<const HTMLElement*>(node)); - RefPtr<CSSMutableStyleDeclaration> style = styleFromMatchedRulesForElement(element); - RefPtr<CSSMutableStyleDeclaration> inlineStyleDecl = element->getInlineStyleDecl(); - style->merge(inlineStyleDecl.get()); - return style.release(); -} - -static bool propertyMissingOrEqualToNone(CSSMutableStyleDeclaration* style, int propertyID) -{ - if (!style) - return false; - RefPtr<CSSValue> value = style->getPropertyCSSValue(propertyID); - if (!value) - return true; - if (!value->isPrimitiveValue()) - return false; - return static_cast<CSSPrimitiveValue*>(value.get())->getIdent() == CSSValueNone; -} - -static bool elementHasTextDecorationProperty(const Node* node) -{ - RefPtr<CSSMutableStyleDeclaration> style = styleFromMatchedRulesAndInlineDecl(node); - if (!style) - return false; - return !propertyMissingOrEqualToNone(style.get(), CSSPropertyTextDecoration); -} - -String joinMarkups(const Vector<String> preMarkups, const Vector<String>& postMarkups) -{ - size_t length = 0; - - size_t preCount = preMarkups.size(); - for (size_t i = 0; i < preCount; ++i) - length += preMarkups[i].length(); - - size_t postCount = postMarkups.size(); - for (size_t i = 0; i < postCount; ++i) - length += postMarkups[i].length(); - - Vector<UChar> result; - result.reserveCapacity(length); - - for (size_t i = preCount; i > 0; --i) - append(result, preMarkups[i - 1]); - - for (size_t i = 0; i < postCount; ++i) - append(result, postMarkups[i]); - - return String::adopt(result); -} - -// FIXME: Shouldn't we omit style info when annotate == DoNotAnnotateForInterchange? -// FIXME: At least, annotation and style info should probably not be included in range.markupString() -String createMarkup(const Range* range, Vector<Node*>* nodes, EAnnotateForInterchange annotate, bool convertBlocksToInlines) -{ - static const String interchangeNewlineString = String("<br class=\"") + AppleInterchangeNewline + "\">"; - - if (!range) - return ""; - - Document* document = range->ownerDocument(); - if (!document) - return ""; - - bool documentIsHTML = document->isHTMLDocument(); - - // Disable the delete button so it's elements are not serialized into the markup, - // but make sure neither endpoint is inside the delete user interface. - Frame* frame = document->frame(); - DeleteButtonController* deleteButton = frame ? frame->editor()->deleteButtonController() : 0; - RefPtr<Range> updatedRange = avoidIntersectionWithNode(range, deleteButton ? deleteButton->containerElement() : 0); - if (!updatedRange) - return ""; - - if (deleteButton) - deleteButton->disable(); - - ExceptionCode ec = 0; - bool collapsed = updatedRange->collapsed(ec); - ASSERT(ec == 0); - if (collapsed) - return ""; - Node* commonAncestor = updatedRange->commonAncestorContainer(ec); - ASSERT(ec == 0); - if (!commonAncestor) - return ""; - - document->updateLayoutIgnorePendingStylesheets(); - - Vector<String> markups; - Vector<String> preMarkups; - Node* pastEnd = updatedRange->pastLastNode(); - Node* lastClosed = 0; - Vector<Node*> ancestorsToClose; - - Node* startNode = updatedRange->firstNode(); - VisiblePosition visibleStart(updatedRange->startPosition(), VP_DEFAULT_AFFINITY); - VisiblePosition visibleEnd(updatedRange->endPosition(), VP_DEFAULT_AFFINITY); - if (annotate && needInterchangeNewlineAfter(visibleStart)) { - if (visibleStart == visibleEnd.previous()) { - if (deleteButton) - deleteButton->enable(); - return interchangeNewlineString; - } - - markups.append(interchangeNewlineString); - startNode = visibleStart.next().deepEquivalent().node(); - } - - Node* next; - for (Node* n = startNode; n != pastEnd; n = next) { - - // According to <rdar://problem/5730668>, it is possible for n to blow past pastEnd and become null here. This - // shouldn't be possible. This null check will prevent crashes (but create too much markup) and the ASSERT will - // hopefully lead us to understanding the problem. - ASSERT(n); - if (!n) - break; - - next = n->traverseNextNode(); - bool skipDescendants = false; - bool addMarkupForNode = true; - - if (!n->renderer() && !enclosingNodeWithTag(Position(n, 0), selectTag)) { - skipDescendants = true; - addMarkupForNode = false; - next = n->traverseNextSibling(); - // Don't skip over pastEnd. - if (pastEnd && pastEnd->isDescendantOf(n)) - next = pastEnd; - } - - if (isBlock(n) && canHaveChildrenForEditing(n) && next == pastEnd) - // Don't write out empty block containers that aren't fully selected. - continue; - - // Add the node to the markup. - if (addMarkupForNode) { - markups.append(getStartMarkup(n, updatedRange.get(), annotate)); - if (nodes) - nodes->append(n); - } - - if (n->firstChild() == 0 || skipDescendants) { - // Node has no children, or we are skipping it's descendants, add its close tag now. - if (addMarkupForNode) { - markups.append(getEndMarkup(n)); - lastClosed = n; - } - - // Check if the node is the last leaf of a tree. - if (!n->nextSibling() || next == pastEnd) { - if (!ancestorsToClose.isEmpty()) { - // Close up the ancestors. - do { - Node *ancestor = ancestorsToClose.last(); - if (next != pastEnd && next->isDescendantOf(ancestor)) - break; - // Not at the end of the range, close ancestors up to sibling of next node. - markups.append(getEndMarkup(ancestor)); - lastClosed = ancestor; - ancestorsToClose.removeLast(); - } while (!ancestorsToClose.isEmpty()); - } - - // Surround the currently accumulated markup with markup for ancestors we never opened as we leave the subtree(s) rooted at those ancestors. - Node* nextParent = next ? next->parentNode() : 0; - if (next != pastEnd && n != nextParent) { - Node* lastAncestorClosedOrSelf = n->isDescendantOf(lastClosed) ? lastClosed : n; - for (Node *parent = lastAncestorClosedOrSelf->parent(); parent != 0 && parent != nextParent; parent = parent->parentNode()) { - // All ancestors that aren't in the ancestorsToClose list should either be a) unrendered: - if (!parent->renderer()) - continue; - // or b) ancestors that we never encountered during a pre-order traversal starting at startNode: - ASSERT(startNode->isDescendantOf(parent)); - preMarkups.append(getStartMarkup(parent, updatedRange.get(), annotate)); - markups.append(getEndMarkup(parent)); - if (nodes) - nodes->append(parent); - lastClosed = parent; - } - } - } - } else if (addMarkupForNode && !skipDescendants) - // We added markup for this node, and we're descending into it. Set it to close eventually. - ancestorsToClose.append(n); - } - - // Include ancestors that aren't completely inside the range but are required to retain - // the structure and appearance of the copied markup. - Node* specialCommonAncestor = 0; - Node* commonAncestorBlock = commonAncestor ? enclosingBlock(commonAncestor) : 0; - if (annotate && commonAncestorBlock) { - if (commonAncestorBlock->hasTagName(tbodyTag) || commonAncestorBlock->hasTagName(trTag)) { - Node* table = commonAncestorBlock->parentNode(); - while (table && !table->hasTagName(tableTag)) - table = table->parentNode(); - if (table) - specialCommonAncestor = table; - } else if (commonAncestorBlock->hasTagName(listingTag) - || commonAncestorBlock->hasTagName(olTag) - || commonAncestorBlock->hasTagName(preTag) - || commonAncestorBlock->hasTagName(tableTag) - || commonAncestorBlock->hasTagName(ulTag) - || commonAncestorBlock->hasTagName(xmpTag)) - specialCommonAncestor = commonAncestorBlock; - } - - bool selectedOneOrMoreParagraphs = startOfParagraph(visibleStart) != startOfParagraph(visibleEnd) || - isStartOfParagraph(visibleStart) && isEndOfParagraph(visibleEnd); - - // Retain the Mail quote level by including all ancestor mail block quotes. - if (lastClosed && annotate && selectedOneOrMoreParagraphs) { - for (Node *ancestor = lastClosed->parentNode(); ancestor; ancestor = ancestor->parentNode()) - if (isMailBlockquote(ancestor)) - specialCommonAncestor = ancestor; - } - - Node* checkAncestor = specialCommonAncestor ? specialCommonAncestor : commonAncestor; - if (checkAncestor->renderer()) { - RefPtr<CSSMutableStyleDeclaration> checkAncestorStyle = computedStyle(checkAncestor)->copyInheritableProperties(); - if (!propertyMissingOrEqualToNone(checkAncestorStyle.get(), CSSPropertyWebkitTextDecorationsInEffect)) - specialCommonAncestor = enclosingNodeOfType(Position(checkAncestor, 0), &elementHasTextDecorationProperty); - } - - // If a single tab is selected, commonAncestor will be a text node inside a tab span. - // If two or more tabs are selected, commonAncestor will be the tab span. - // In either case, if there is a specialCommonAncestor already, it will necessarily be above - // any tab span that needs to be included. - if (!specialCommonAncestor && isTabSpanTextNode(commonAncestor)) - specialCommonAncestor = commonAncestor->parentNode(); - if (!specialCommonAncestor && isTabSpanNode(commonAncestor)) - specialCommonAncestor = commonAncestor; - - if (Node *enclosingAnchor = enclosingNodeWithTag(Position(specialCommonAncestor ? specialCommonAncestor : commonAncestor, 0), aTag)) - specialCommonAncestor = enclosingAnchor; - - Node* body = enclosingNodeWithTag(Position(commonAncestor, 0), bodyTag); - // FIXME: Only include markup for a fully selected root (and ancestors of lastClosed up to that root) if - // there are styles/attributes on those nodes that need to be included to preserve the appearance of the copied markup. - // FIXME: Do this for all fully selected blocks, not just the body. - Node* fullySelectedRoot = body && *Selection::selectionFromContentsOfNode(body).toRange() == *updatedRange ? body : 0; - if (annotate && fullySelectedRoot) - specialCommonAncestor = fullySelectedRoot; - - if (specialCommonAncestor && lastClosed) { - // Also include all of the ancestors of lastClosed up to this special ancestor. - for (Node* ancestor = lastClosed->parentNode(); ancestor; ancestor = ancestor->parentNode()) { - if (ancestor == fullySelectedRoot && !convertBlocksToInlines) { - RefPtr<CSSMutableStyleDeclaration> style = styleFromMatchedRulesAndInlineDecl(fullySelectedRoot); - - // Bring the background attribute over, but not as an attribute because a background attribute on a div - // appears to have no effect. - if (!style->getPropertyCSSValue(CSSPropertyBackgroundImage) && static_cast<Element*>(fullySelectedRoot)->hasAttribute(backgroundAttr)) - style->setProperty(CSSPropertyBackgroundImage, "url('" + static_cast<Element*>(fullySelectedRoot)->getAttribute(backgroundAttr) + "')"); - - if (style->length()) { - Vector<UChar> openTag; - static const String divStyle("<div style=\""); - append(openTag, divStyle); - appendAttributeValue(openTag, style->cssText(), documentIsHTML); - openTag.append('\"'); - openTag.append('>'); - preMarkups.append(String::adopt(openTag)); - - static const String divCloseTag("</div>"); - markups.append(divCloseTag); - } - } else { - preMarkups.append(getStartMarkup(ancestor, updatedRange.get(), annotate, convertBlocksToInlines)); - markups.append(getEndMarkup(ancestor)); - } - if (nodes) - nodes->append(ancestor); - - lastClosed = ancestor; - - if (ancestor == specialCommonAncestor) - break; - } - } - - static const String styleSpanOpen = String("<span class=\"" AppleStyleSpanClass "\" style=\""); - static const String styleSpanClose("</span>"); - - // Add a wrapper span with the styles that all of the nodes in the markup inherit. - Node* parentOfLastClosed = lastClosed ? lastClosed->parentNode() : 0; - if (parentOfLastClosed && parentOfLastClosed->renderer()) { - RefPtr<CSSMutableStyleDeclaration> style = computedStyle(parentOfLastClosed)->copyInheritableProperties(); - - // Styles that Mail blockquotes contribute should only be placed on the Mail blockquote, to help - // us differentiate those styles from ones that the user has applied. This helps us - // get the color of content pasted into blockquotes right. - removeEnclosingMailBlockquoteStyle(style.get(), parentOfLastClosed); - - // Document default styles will be added on another wrapper span. - removeDefaultStyles(style.get(), document); - - // Since we are converting blocks to inlines, remove any inherited block properties that are in the style. - // This cuts out meaningless properties and prevents properties from magically affecting blocks later - // if the style is cloned for a new block element during a future editing operation. - if (convertBlocksToInlines) - style->removeBlockProperties(); - - if (style->length() > 0) { - Vector<UChar> openTag; - append(openTag, styleSpanOpen); - appendAttributeValue(openTag, style->cssText(), documentIsHTML); - openTag.append('\"'); - openTag.append('>'); - preMarkups.append(String::adopt(openTag)); - - markups.append(styleSpanClose); - } - } - - if (lastClosed && lastClosed != document->documentElement()) { - // Add a style span with the document's default styles. We add these in a separate - // span so that at paste time we can differentiate between document defaults and user - // applied styles. - RefPtr<CSSMutableStyleDeclaration> defaultStyle = computedStyle(document->documentElement())->copyInheritableProperties(); - - if (defaultStyle->length() > 0) { - Vector<UChar> openTag; - append(openTag, styleSpanOpen); - appendAttributeValue(openTag, defaultStyle->cssText(), documentIsHTML); - openTag.append('\"'); - openTag.append('>'); - preMarkups.append(String::adopt(openTag)); - markups.append(styleSpanClose); - } - } - - // FIXME: The interchange newline should be placed in the block that it's in, not after all of the content, unconditionally. - if (annotate && needInterchangeNewlineAfter(visibleEnd.previous())) - markups.append(interchangeNewlineString); - - if (deleteButton) - deleteButton->enable(); - - return joinMarkups(preMarkups, markups); -} - -PassRefPtr<DocumentFragment> createFragmentFromMarkup(Document* document, const String& markup, const String& baseURL) -{ - ASSERT(document->documentElement()->isHTMLElement()); - // FIXME: What if the document element is not an HTML element? - HTMLElement *element = static_cast<HTMLElement*>(document->documentElement()); - - RefPtr<DocumentFragment> fragment = element->createContextualFragment(markup); - - if (fragment && !baseURL.isEmpty() && baseURL != blankURL() && baseURL != document->baseURL()) - completeURLs(fragment.get(), baseURL); - - return fragment.release(); -} - -String createMarkup(const Node* node, EChildrenOnly includeChildren, Vector<Node*>* nodes) -{ - Vector<UChar> result; - - if (!node) - return ""; - - Document* document = node->document(); - Frame* frame = document->frame(); - DeleteButtonController* deleteButton = frame ? frame->editor()->deleteButtonController() : 0; - - // disable the delete button so it's elements are not serialized into the markup - if (deleteButton) { - if (node->isDescendantOf(deleteButton->containerElement())) - return ""; - deleteButton->disable(); - } - - appendMarkup(result, const_cast<Node*>(node), includeChildren, nodes); - - if (deleteButton) - deleteButton->enable(); - - return String::adopt(result); -} - -static void fillContainerFromString(ContainerNode* paragraph, const String& string) -{ - Document* document = paragraph->document(); - - ExceptionCode ec = 0; - if (string.isEmpty()) { - paragraph->appendChild(createBlockPlaceholderElement(document), ec); - ASSERT(ec == 0); - return; - } - - ASSERT(string.find('\n') == -1); - - Vector<String> tabList; - string.split('\t', true, tabList); - String tabText = ""; - bool first = true; - size_t numEntries = tabList.size(); - for (size_t i = 0; i < numEntries; ++i) { - const String& s = tabList[i]; - - // append the non-tab textual part - if (!s.isEmpty()) { - if (!tabText.isEmpty()) { - paragraph->appendChild(createTabSpanElement(document, tabText), ec); - ASSERT(ec == 0); - tabText = ""; - } - RefPtr<Node> textNode = document->createTextNode(stringWithRebalancedWhitespace(s, first, i + 1 == numEntries)); - paragraph->appendChild(textNode.release(), ec); - ASSERT(ec == 0); - } - - // there is a tab after every entry, except the last entry - // (if the last character is a tab, the list gets an extra empty entry) - if (i + 1 != numEntries) - tabText.append('\t'); - else if (!tabText.isEmpty()) { - paragraph->appendChild(createTabSpanElement(document, tabText), ec); - ASSERT(ec == 0); - } - - first = false; - } -} - -PassRefPtr<DocumentFragment> createFragmentFromText(Range* context, const String& text) -{ - if (!context) - return 0; - - Node* styleNode = context->firstNode(); - if (!styleNode) { - styleNode = context->startPosition().node(); - if (!styleNode) - return 0; - } - - Document* document = styleNode->document(); - RefPtr<DocumentFragment> fragment = document->createDocumentFragment(); - - if (text.isEmpty()) - return fragment.release(); - - String string = text; - string.replace("\r\n", "\n"); - string.replace('\r', '\n'); - - ExceptionCode ec = 0; - RenderObject* renderer = styleNode->renderer(); - if (renderer && renderer->style()->preserveNewline()) { - fragment->appendChild(document->createTextNode(string), ec); - ASSERT(ec == 0); - if (string.endsWith("\n")) { - RefPtr<Element> element; - element = document->createElementNS(xhtmlNamespaceURI, "br", ec); - ASSERT(ec == 0); - element->setAttribute(classAttr, AppleInterchangeNewline); - fragment->appendChild(element.release(), ec); - ASSERT(ec == 0); - } - return fragment.release(); - } - - // A string with no newlines gets added inline, rather than being put into a paragraph. - if (string.find('\n') == -1) { - fillContainerFromString(fragment.get(), string); - return fragment.release(); - } - - // Break string into paragraphs. Extra line breaks turn into empty paragraphs. - Node* block = enclosingBlock(context->firstNode()); - bool useClonesOfEnclosingBlock = block && !block->hasTagName(bodyTag) && !block->hasTagName(htmlTag) && block != editableRootForPosition(context->startPosition()); - - Vector<String> list; - string.split('\n', true, list); // true gets us empty strings in the list - size_t numLines = list.size(); - for (size_t i = 0; i < numLines; ++i) { - const String& s = list[i]; - - RefPtr<Element> element; - if (s.isEmpty() && i + 1 == numLines) { - // For last line, use the "magic BR" rather than a P. - element = document->createElementNS(xhtmlNamespaceURI, "br", ec); - ASSERT(ec == 0); - element->setAttribute(classAttr, AppleInterchangeNewline); - } else { - element = useClonesOfEnclosingBlock ? static_cast<Element*>(block->cloneNode(false).get()) : createDefaultParagraphElement(document); - fillContainerFromString(element.get(), s); - } - fragment->appendChild(element.release(), ec); - ASSERT(ec == 0); - } - return fragment.release(); -} - -PassRefPtr<DocumentFragment> createFragmentFromNodes(Document *document, const Vector<Node*>& nodes) -{ - if (!document) - return 0; - - // disable the delete button so it's elements are not serialized into the markup - if (document->frame()) - document->frame()->editor()->deleteButtonController()->disable(); - - RefPtr<DocumentFragment> fragment = document->createDocumentFragment(); - - ExceptionCode ec = 0; - size_t size = nodes.size(); - for (size_t i = 0; i < size; ++i) { - RefPtr<Element> element = createDefaultParagraphElement(document); - element->appendChild(nodes[i], ec); - ASSERT(ec == 0); - fragment->appendChild(element.release(), ec); - ASSERT(ec == 0); - } - - if (document->frame()) - document->frame()->editor()->deleteButtonController()->enable(); - - return fragment.release(); -} - -String createFullMarkup(const Node* node) -{ - if (!node) - return String(); - - Document* document = node->document(); - if (!document) - return String(); - - Frame* frame = document->frame(); - if (!frame) - return String(); - - // FIXME: This is never "for interchange". Is that right? - String markupString = createMarkup(node, IncludeNode, 0); - Node::NodeType nodeType = node->nodeType(); - if (nodeType != Node::DOCUMENT_NODE && nodeType != Node::DOCUMENT_TYPE_NODE) - markupString = frame->documentTypeString() + markupString; - - return markupString; -} - -String createFullMarkup(const Range* range) -{ - if (!range) - return String(); - - Node* node = range->startContainer(); - if (!node) - return String(); - - Document* document = node->document(); - if (!document) - return String(); - - Frame* frame = document->frame(); - if (!frame) - return String(); - - // FIXME: This is always "for interchange". Is that right? See the previous method. - return frame->documentTypeString() + createMarkup(range, 0, AnnotateForInterchange); -} - -} |