--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/markup.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,1305 @@
+/*
+ * Copyright (C) 2004, 2005, 2006, 2007, 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.
+ */
+
+#include "config.h"
+#include "markup.h"
+
+#include "CDATASection.h"
+#include "CharacterNames.h"
+#include "Comment.h"
+#include "CSSComputedStyleDeclaration.h"
+#include "CSSMutableStyleDeclaration.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 "DocumentFragment.h"
+#include "DocumentType.h"
+#include "Editor.h"
+#include "Frame.h"
+#include "HTMLElement.h"
+#include "HTMLNames.h"
+#include "InlineTextBox.h"
+#include "KURL.h"
+#include "Logging.h"
+#include "ProcessingInstruction.h"
+#include "Range.h"
+#include "VisibleSelection.h"
+#include "TextIterator.h"
+#include "XMLNSNames.h"
+#include "htmlediting.h"
+#include "visible_units.h"
+#include <wtf/StdLibExtras.h>
+#include "ApplyStyleCommand.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;
+
+ DEFINE_STATIC_LOCAL(const String, ampEntity, ("&"));
+ DEFINE_STATIC_LOCAL(const String, gtEntity, (">"));
+ DEFINE_STATIC_LOCAL(const String, ltEntity, ("<"));
+ DEFINE_STATIC_LOCAL(const String, quotEntity, ("""));
+ DEFINE_STATIC_LOCAL(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;
+
+ DEFINE_STATIC_LOCAL(const String, ampEntity, ("&"));
+ DEFINE_STATIC_LOCAL(const String, gtEntity, (">"));
+ DEFINE_STATIC_LOCAL(const String, ltEntity, ("<"));
+ DEFINE_STATIC_LOCAL(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 (protocolIsJavaScript(strippedURLString)) {
+ // 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;
+
+ removeStylesAddedByNode(style, blockquote);
+}
+
+static void removeDefaultStyles(CSSMutableStyleDeclaration* style, Document* document)
+{
+ if (!document || !document->documentElement())
+ return;
+
+ prepareEditingStyleToApplyAt(style, Position(document->documentElement(), 0));
+}
+
+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)
+{
+ namespaces.checkConsistency();
+
+ // Don't add namespace attributes twice
+ if (attr->name() == XMLNSNames::xmlnsAttr) {
+ namespaces.set(emptyAtom.impl(), attr->value().impl());
+ return false;
+ }
+
+ QualifiedName xmlnsPrefixAttr(xmlnsAtom, attr->localName(), XMLNSNames::xmlnsNamespaceURI);
+ 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)
+{
+ namespaces.checkConsistency();
+ 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());
+ result.append(' ');
+ append(result, xmlnsAtom.string());
+ 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 removeExteriorStyles(CSSMutableStyleDeclaration* style)
+{
+ style->removeProperty(CSSPropertyFloat);
+}
+
+enum RangeFullySelectsNode { DoesFullySelectNode, DoesNotFullySelectNode };
+
+static void appendStartMarkup(Vector<UChar>& result, const Node* node, const Range* range, EAnnotateForInterchange annotate, EAbsoluteURLs absoluteURLs, bool convertBlocksToInlines, HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces, RangeFullySelectsNode rangeFullySelectsNode = DoesFullySelectNode)
+{
+ if (namespaces)
+ namespaces->checkConsistency();
+
+ 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(xmpTag)) {
+ appendUCharRange(result, ucharRange(node, range));
+ break;
+ } else if (parent->hasTagName(textareaTag)) {
+ appendEscapedContent(result, ucharRange(node, range), documentIsHTML);
+ 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);
+ 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)->data());
+ 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());
+ NamedNodeMap *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)) {
+ // We don't want to complete file:/// URLs because it may contain sensitive information
+ // about the user's system.
+ if (absoluteURLs == AbsoluteURLs && !node->document()->url().isLocalFile())
+ appendQuotedURLAttributeValue(result, node->document()->completeURL(attr->value()).string());
+ else
+ appendQuotedURLAttributeValue(result, attr->value().string());
+ } 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();
+
+ {
+ CSSMutableStyleDeclaration::const_iterator end = style->end();
+ for (CSSMutableStyleDeclaration::const_iterator it = style->begin(); 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 the node is not fully selected by the range, then we don't want to keep styles that affect its relationship to the nodes around it
+ // only the ones that affect it and the nodes within it.
+ if (rangeFullySelectsNode == DoesNotFullySelectNode)
+ removeExteriorStyles(style.get());
+ if (style->length() > 0) {
+ DEFINE_STATIC_LOCAL(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, EAbsoluteURLs absoluteURLs, bool convertBlocksToInlines = false, HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces = 0, RangeFullySelectsNode rangeFullySelectsNode = DoesFullySelectNode)
+{
+ Vector<UChar> result;
+ appendStartMarkup(result, node, range, annotate, absoluteURLs, convertBlocksToInlines, namespaces, rangeFullySelectsNode);
+ 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);
+}
+
+class MarkupAccumulator {
+public:
+ MarkupAccumulator(Node* nodeToSkip, Vector<Node*>* nodes)
+ : m_nodeToSkip(nodeToSkip)
+ , m_nodes(nodes)
+ {
+ }
+
+ void appendMarkup(Node* startNode, EChildrenOnly, EAbsoluteURLs, const HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces = 0);
+
+ String takeResult() { return String::adopt(m_result); }
+
+private:
+ Vector<UChar> m_result;
+ Node* m_nodeToSkip;
+ Vector<Node*>* m_nodes;
+};
+
+// FIXME: Would be nice to do this in a non-recursive way.
+void MarkupAccumulator::appendMarkup(Node* startNode, EChildrenOnly childrenOnly, EAbsoluteURLs absoluteURLs, const HashMap<AtomicStringImpl*, AtomicStringImpl*>* namespaces)
+{
+ if (startNode == m_nodeToSkip)
+ return;
+
+ HashMap<AtomicStringImpl*, AtomicStringImpl*> namespaceHash;
+ if (namespaces)
+ namespaceHash = *namespaces;
+
+ // start tag
+ if (!childrenOnly) {
+ if (m_nodes)
+ m_nodes->append(startNode);
+ appendStartMarkup(m_result, startNode, 0, DoNotAnnotateForInterchange, absoluteURLs, false, &namespaceHash);
+ }
+
+ // children
+ if (!(startNode->document()->isHTMLDocument() && doesHTMLForbidEndTag(startNode))) {
+ for (Node* current = startNode->firstChild(); current; current = current->nextSibling())
+ appendMarkup(current, IncludeNode, absoluteURLs, &namespaceHash);
+ }
+
+ // end tag
+ if (!childrenOnly)
+ appendEndMarkup(m_result, startNode);
+}
+
+static void completeURLs(Node* node, const String& baseURL)
+{
+ Vector<AttributeChange> changes;
+
+ KURL parsedBaseURL(ParsedURLString, baseURL);
+
+ Node* end = node->traverseNextSibling();
+ for (Node* n = node; n != end; n = n->traverseNextNode()) {
+ if (n->isElementNode()) {
+ Element* e = static_cast<Element*>(n);
+ NamedNodeMap* 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(CSSStyleDeclaration* 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 isElementPresentational(const Node* node)
+{
+ if (node->hasTagName(uTag) || node->hasTagName(sTag) || node->hasTagName(strikeTag) ||
+ node->hasTagName(iTag) || node->hasTagName(emTag) || node->hasTagName(bTag) || node->hasTagName(strongTag))
+ return true;
+ RefPtr<CSSMutableStyleDeclaration> style = styleFromMatchedRulesAndInlineDecl(node);
+ if (!style)
+ return false;
+ return !propertyMissingOrEqualToNone(style.get(), CSSPropertyTextDecoration);
+}
+
+static 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.reserveInitialCapacity(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);
+}
+
+static bool isSpecialAncestorBlock(Node* node)
+{
+ if (!node || !isBlock(node))
+ return false;
+
+ return node->hasTagName(listingTag) ||
+ node->hasTagName(olTag) ||
+ node->hasTagName(preTag) ||
+ node->hasTagName(tableTag) ||
+ node->hasTagName(ulTag) ||
+ node->hasTagName(xmpTag) ||
+ node->hasTagName(h1Tag) ||
+ node->hasTagName(h2Tag) ||
+ node->hasTagName(h3Tag) ||
+ node->hasTagName(h4Tag) ||
+ node->hasTagName(h5Tag);
+}
+
+static bool shouldIncludeWrapperForFullySelectedRoot(Node* fullySelectedRoot, CSSMutableStyleDeclaration* style)
+{
+ if (fullySelectedRoot->isElementNode() && static_cast<Element*>(fullySelectedRoot)->hasAttribute(backgroundAttr))
+ return true;
+
+ return style->getPropertyCSSValue(CSSPropertyBackgroundImage) ||
+ style->getPropertyCSSValue(CSSPropertyBackgroundColor);
+}
+
+static void addStyleMarkup(Vector<String>& preMarkups, Vector<String>& postMarkups, CSSStyleDeclaration* style, Document* document, bool isBlock = false)
+{
+ // All text-decoration-related elements should have been treated as special ancestors
+ // If we ever hit this ASSERT, we should export StyleChange in ApplyStyleCommand and use it here
+ ASSERT(propertyMissingOrEqualToNone(style, CSSPropertyTextDecoration) && propertyMissingOrEqualToNone(style, CSSPropertyWebkitTextDecorationsInEffect));
+ DEFINE_STATIC_LOCAL(const String, divStyle, ("<div style=\""));
+ DEFINE_STATIC_LOCAL(const String, divClose, ("</div>"));
+ DEFINE_STATIC_LOCAL(const String, styleSpanOpen, ("<span class=\"" AppleStyleSpanClass "\" style=\""));
+ DEFINE_STATIC_LOCAL(const String, styleSpanClose, ("</span>"));
+ Vector<UChar> openTag;
+ append(openTag, isBlock ? divStyle : styleSpanOpen);
+ appendAttributeValue(openTag, style->cssText(), document->isHTMLDocument());
+ openTag.append('\"');
+ openTag.append('>');
+ preMarkups.append(String::adopt(openTag));
+
+ postMarkups.append(isBlock ? divClose : styleSpanClose);
+}
+
+// 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, EAbsoluteURLs absoluteURLs)
+{
+ DEFINE_STATIC_LOCAL(const String, interchangeNewlineString, ("<br class=\"" AppleInterchangeNewline "\">"));
+
+ if (!range)
+ return "";
+
+ Document* document = range->ownerDocument();
+ if (!document)
+ return "";
+
+ // 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();
+
+ if (pastEnd && Range::compareBoundaryPoints(startNode, 0, pastEnd, 0) >= 0) {
+ if (deleteButton)
+ deleteButton->enable();
+ return interchangeNewlineString;
+ }
+ }
+
+ 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, absoluteURLs));
+ 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, absoluteURLs));
+ 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 (isSpecialAncestorBlock(commonAncestorBlock))
+ specialCommonAncestor = commonAncestorBlock;
+ }
+
+ // Retain the Mail quote level by including all ancestor mail block quotes.
+ if (lastClosed && annotate) {
+ for (Node *ancestor = lastClosed->parentNode(); ancestor; ancestor = ancestor->parentNode())
+ if (isMailBlockquote(ancestor))
+ specialCommonAncestor = ancestor;
+ }
+
+ Node* checkAncestor = specialCommonAncestor ? specialCommonAncestor : commonAncestor;
+ if (checkAncestor->renderer()) {
+ Node* newSpecialCommonAncestor = highestEnclosingNodeOfType(Position(checkAncestor, 0), &isElementPresentational);
+ if (newSpecialCommonAncestor)
+ specialCommonAncestor = newSpecialCommonAncestor;
+ }
+
+ // 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: Do this for all fully selected blocks, not just the body.
+ Node* fullySelectedRoot = body && areRangesEqual(VisibleSelection::selectionFromContentsOfNode(body).toNormalizedRange().get(), updatedRange.get()) ? body : 0;
+ RefPtr<CSSMutableStyleDeclaration> fullySelectedRootStyle = fullySelectedRoot ? styleFromMatchedRulesAndInlineDecl(fullySelectedRoot) : 0;
+ if (annotate && fullySelectedRoot) {
+ if (shouldIncludeWrapperForFullySelectedRoot(fullySelectedRoot, fullySelectedRootStyle.get()))
+ 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) {
+
+ // Bring the background attribute over, but not as an attribute because a background attribute on a div
+ // appears to have no effect.
+ if (!fullySelectedRootStyle->getPropertyCSSValue(CSSPropertyBackgroundImage) && static_cast<Element*>(fullySelectedRoot)->hasAttribute(backgroundAttr))
+ fullySelectedRootStyle->setProperty(CSSPropertyBackgroundImage, "url('" + static_cast<Element*>(fullySelectedRoot)->getAttribute(backgroundAttr) + "')");
+
+ if (fullySelectedRootStyle->length()) {
+ // Reset the CSS properties to avoid an assertion error in addStyleMarkup().
+ // This assertion is caused at least when we select all text of a <body> element whose
+ // 'text-decoration' property is "inherit", and copy it.
+ if (!propertyMissingOrEqualToNone(fullySelectedRootStyle.get(), CSSPropertyTextDecoration))
+ fullySelectedRootStyle->setProperty(CSSPropertyTextDecoration, CSSValueNone);
+ if (!propertyMissingOrEqualToNone(fullySelectedRootStyle.get(), CSSPropertyWebkitTextDecorationsInEffect))
+ fullySelectedRootStyle->setProperty(CSSPropertyWebkitTextDecorationsInEffect, CSSValueNone);
+ addStyleMarkup(preMarkups, markups, fullySelectedRootStyle.get(), document, true);
+ }
+ } else {
+ // Since this node and all the other ancestors are not in the selection we want to set RangeFullySelectsNode to DoesNotFullySelectNode
+ // so that styles that affect the exterior of the node are not included.
+ preMarkups.append(getStartMarkup(ancestor, updatedRange.get(), annotate, absoluteURLs, convertBlocksToInlines, 0, DoesNotFullySelectNode));
+ markups.append(getEndMarkup(ancestor));
+ }
+ if (nodes)
+ nodes->append(ancestor);
+
+ lastClosed = ancestor;
+
+ if (ancestor == specialCommonAncestor)
+ break;
+ }
+ }
+
+ // 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 = ApplyStyleCommand::editingStyleAtPosition(Position(parentOfLastClosed, 0));
+
+ // 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)
+ addStyleMarkup(preMarkups, markups, style.get(), document);
+ }
+
+ 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 = ApplyStyleCommand::editingStyleAtPosition(Position(document->documentElement(), 0));
+
+ if (defaultStyle->length() > 0)
+ addStyleMarkup(preMarkups, markups, defaultStyle.get(), document);
+ }
+
+ // 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, FragmentScriptingPermission scriptingPermission)
+{
+ RefPtr<DocumentFragment> fragment = document->documentElement()->createContextualFragment(markup, scriptingPermission);
+
+ if (fragment && !baseURL.isEmpty() && baseURL != blankURL() && baseURL != document->baseURL())
+ completeURLs(fragment.get(), baseURL);
+
+ return fragment.release();
+}
+
+String createMarkup(const Node* node, EChildrenOnly childrenOnly, Vector<Node*>* nodes, EAbsoluteURLs absoluteURLs)
+{
+ if (!node)
+ return "";
+
+ HTMLElement* deleteButtonContainerElement = 0;
+ if (Frame* frame = node->document()->frame()) {
+ deleteButtonContainerElement = frame->editor()->deleteButtonController()->containerElement();
+ if (node->isDescendantOf(deleteButtonContainerElement))
+ return "";
+ }
+
+ MarkupAccumulator accumulator(deleteButtonContainerElement, nodes);
+ accumulator.appendMarkup(const_cast<Node*>(node), childrenOnly, absoluteURLs);
+ return accumulator.takeResult();
+}
+
+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;
+ }
+}
+
+bool isPlainTextMarkup(Node *node)
+{
+ if (!node->isElementNode() || !node->hasTagName(divTag) || static_cast<Element*>(node)->attributes()->length())
+ return false;
+
+ if (node->childNodeCount() == 1 && (node->firstChild()->isTextNode() || (node->firstChild()->firstChild())))
+ return true;
+
+ return (node->childNodeCount() == 2 && isTabSpanTextNode(node->firstChild()->firstChild()) && node->firstChild()->nextSibling()->isTextNode());
+}
+
+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 = createBreakElement(document);
+ 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* blockNode = enclosingBlock(context->firstNode());
+ Element* block = static_cast<Element*>(blockNode);
+ bool useClonesOfEnclosingBlock = blockNode
+ && blockNode->isElementNode()
+ && !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 = createBreakElement(document);
+ element->setAttribute(classAttr, AppleInterchangeNewline);
+ } else {
+ if (useClonesOfEnclosingBlock)
+ element = block->cloneElementWithoutChildren();
+ else
+ element = 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);
+}
+
+String urlToMarkup(const KURL& url, const String& title)
+{
+ Vector<UChar> markup;
+ append(markup, "<a href=\"");
+ append(markup, url.string());
+ append(markup, "\">");
+ appendEscapedContent(markup, make_pair(title.characters(), title.length()), false);
+ append(markup, "</a>");
+ return String::adopt(markup);
+}
+
+}