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webkit / WebKit / 9765eaae75bc2c2ccc4b2468231acc50588e5d25 / . / WebCore / editing / markup.cpp
blob: 5920b84ec98ff6a3e887566029e64eefcbbc692c [file] [log] [blame]
/*
* Copyright (C) 2004, 2005, 2006, 2007 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 "CSSComputedStyleDeclaration.h"
#include "CSSPropertyNames.h"
#include "CSSRule.h"
#include "CSSRuleList.h"
#include "CSSStyleRule.h"
#include "CSSStyleSelector.h"
#include "CSSValueKeywords.h"
#include "Comment.h"
#include "DeleteButtonController.h"
#include "DeprecatedStringList.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 "KURL.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 inline void appendString(Vector<UChar>& result, const String& str)
{
result.append(str.characters(), str.length());
}
static void appendAttributeValue(Vector<UChar>& result, const String& attr)
{
const UChar* uchars = attr.characters();
unsigned len = attr.length();
unsigned lastCopiedFrom = 0;
static const String ampEntity("&amp;");
static const String ltEntity("&lt;");
static const String quotEntity("&quot;");
for (unsigned i = 0; i < len; ++i) {
UChar c = uchars[i];
switch (c) {
case '&':
result.append(uchars + lastCopiedFrom, i - lastCopiedFrom);
appendString(result, ampEntity);
lastCopiedFrom = i + 1;
break;
case '<':
result.append(uchars + lastCopiedFrom, i - lastCopiedFrom);
appendString(result, ltEntity);
lastCopiedFrom = i + 1;
break;
case '"':
result.append(uchars + lastCopiedFrom, i - lastCopiedFrom);
appendString(result, quotEntity);
lastCopiedFrom = i + 1;
}
}
result.append(uchars + lastCopiedFrom, len - lastCopiedFrom);
}
static DeprecatedString escapeContentText(const String& in)
{
DeprecatedString s = "";
unsigned len = in.length();
unsigned lastCopiedFrom = 0;
const UChar* uchars = in.characters();
const DeprecatedChar* dchars = reinterpret_cast<const DeprecatedChar*>(uchars);
for (unsigned i = 0; i < len; ++i) {
UChar c = uchars[i];
if ((c == '&') | (c == '<')) {
s.append(dchars + lastCopiedFrom, i - lastCopiedFrom);
if (c == '&')
s += "&amp;";
else
s += "&lt;";
lastCopiedFrom = i + 1;
}
}
s.append(dchars + lastCopiedFrom, len - lastCopiedFrom);
return s;
}
static void appendEscapedContent(Vector<UChar>& result, pair<const UChar*, size_t> range)
{
const UChar* uchars = range.first;
unsigned len = range.second;
unsigned lastCopiedFrom = 0;
static const String ampEntity("&amp;");
static const String ltEntity("&lt;");
for (unsigned i = 0; i < len; ++i) {
UChar c = uchars[i];
if ((c == '&') | (c == '<')) {
result.append(uchars + lastCopiedFrom, i - lastCopiedFrom);
if (c == '&')
appendString(result, ampEntity);
else
appendString(result, ltEntity);
lastCopiedFrom = i + 1;
}
}
result.append(uchars + lastCopiedFrom, len - lastCopiedFrom);
}
static inline void appendDeprecatedString(Vector<UChar>& result, const DeprecatedString& str)
{
result.append(reinterpret_cast<const UChar*>(str.unicode()), str.length());
}
static void appendQuotedURLAttributeValue(Vector<UChar>& result, String urlString)
{
UChar quoteChar = '\"';
if (urlString.stripWhiteSpace().startsWith("javascript:", false)) {
// minimal escaping for javascript urls
if (urlString.contains('\"')) {
if (urlString.contains('\''))
urlString.replace('\"', "&quot;");
else
quoteChar = '\'';
}
result.append(quoteChar);
appendString(result, urlString);
result.append(quoteChar);
return;
}
// FIXME this does not fully match other browsers. Firefox escapes spaces and other special characters.
result.append(quoteChar);
appendAttributeValue(result, urlString);
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);
Range r(node->document(), start, end);
return plainText(&r);
}
static PassRefPtr<CSSMutableStyleDeclaration> styleFromMatchedRulesForElement(Element* element, bool authorOnly = true)
{
RefPtr<CSSMutableStyleDeclaration> style = new CSSMutableStyleDeclaration();
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 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(' ');
appendString(result, xmlns);
if (!prefix.isEmpty()) {
result.append(':');
appendString(result, prefix);
}
result.append('=');
result.append('"');
appendAttributeValue(result, ns);
result.append('"');
}
}
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(listingTag)
|| 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));
break;
}
bool useRenderedText = !enclosingNodeWithTag(Position(const_cast<Node*>(node), 0), selectTag);
DeprecatedString markup = escapeContentText(useRenderedText ? renderedText(node, range) : stringValueForRange(node, range));
if (annotate)
markup = convertHTMLTextToInterchangeFormat(markup, static_cast<const Text*>(node));
appendDeprecatedString(result, markup);
break;
}
case Node::COMMENT_NODE:
appendString(result, static_cast<const Comment*>(node)->toString());
break;
case Node::DOCUMENT_NODE: {
// FIXME: I think the comment below (and therefore this code) is wrong now
// Documents do not normally contain a docType as a child node, force it to print here instead.
const DocumentType* docType = static_cast<const Document*>(node)->doctype();
if (docType)
appendString(result, docType->toString());
break;
}
case Node::DOCUMENT_FRAGMENT_NODE:
break;
case Node::DOCUMENT_TYPE_NODE:
appendString(result, static_cast<const DocumentType*>(node)->toString());
break;
case Node::PROCESSING_INSTRUCTION_NODE:
appendString(result, static_cast<const ProcessingInstruction*>(node)->toString());
break;
case Node::ELEMENT_NODE: {
result.append('<');
const Element* el = static_cast<const Element*>(node);
bool convert = convertBlocksToInlines & isBlock(const_cast<Node*>(node));
appendString(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)
appendString(result, attr->name().localName());
else
appendString(result, attr->name().toString());
result.append('=');
if (el->isURLAttribute(attr))
appendQuotedURLAttributeValue(result, attr->value());
else {
result.append('\"');
appendAttributeValue(result, attr->value());
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));
style->merge(styleFromMatchedRules.get());
}
if (convert)
style->setProperty(CSS_PROP_DISPLAY, CSS_VAL_INLINE, true);
if (style->length() > 0) {
static const String stylePrefix(" style=\"");
appendString(result, stylePrefix);
appendAttributeValue(result, style->cssText());
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:
appendString(result, static_cast<const CDATASection*>(node)->toString());
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('/');
appendString(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 baseURLAsKURL(baseURL.deprecatedString());
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)) {
String completedURL = KURL(baseURLAsKURL, attr->value().deprecatedString()).string();
changes.append(AttributeChange(e, attr->name(), completedURL));
}
}
}
}
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() == CSS_VAL_NONE;
}
static bool elementHasTextDecorationProperty(const Node* node)
{
RefPtr<CSSMutableStyleDeclaration> style = styleFromMatchedRulesAndInlineDecl(node);
if (!style)
return false;
return !propertyMissingOrEqualToNone(style.get(), CSS_PROP_TEXT_DECORATION);
}
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)
appendString(result, preMarkups[i - 1]);
for (size_t i = 0; i < postCount; ++i)
appendString(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 || range->isDetached())
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 (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->pastEndNode();
Node* lastClosed = 0;
Vector<Node*> ancestorsToClose;
Node* startNode = updatedRange->startNode();
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) {
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;
}
Node* checkAncestor = specialCommonAncestor ? specialCommonAncestor : commonAncestor;
if (checkAncestor->renderer()) {
RefPtr<CSSMutableStyleDeclaration> checkAncestorStyle = computedStyle(checkAncestor)->copyInheritableProperties();
if (!propertyMissingOrEqualToNone(checkAncestorStyle.get(), CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT))
specialCommonAncestor = enclosingNodeOfType(Position(checkAncestor, 0), &elementHasTextDecorationProperty);
}
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) {
// 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(CSS_PROP_BACKGROUND_IMAGE) && static_cast<Element*>(fullySelectedRoot)->hasAttribute(backgroundAttr))
style->setProperty(CSS_PROP_BACKGROUND_IMAGE, "url('" + static_cast<Element*>(fullySelectedRoot)->getAttribute(backgroundAttr) + "')");
if (style->length()) {
Vector<UChar> openTag;
static const String divStyle("<div style=\"");
appendString(openTag, divStyle);
appendAttributeValue(openTag, style->cssText());
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;
}
}
// 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);
// 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;
const String spanClassStyle = String("<span class=\"" AppleStyleSpanClass "\" style=\"");
appendString(openTag, spanClassStyle);
appendAttributeValue(openTag, style->cssText());
openTag.append('\"');
openTag.append('>');
preMarkups.append(String::adopt(openTag));
static const String spanCloseTag("</span>");
markups.append(spanCloseTag);
}
}
// 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);
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)) {
preMarkups.append(getStartMarkup(ancestor, updatedRange.get(), annotate));
markups.append(getEndMarkup(ancestor));
}
}
}
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 != "about:blank" && 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 DeprecatedString& 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);
DeprecatedStringList tabList = DeprecatedStringList::split('\t', string, true);
DeprecatedString tabText = "";
bool first = true;
while (!tabList.isEmpty()) {
DeprecatedString s = tabList.first();
tabList.pop_front();
// 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, tabList.isEmpty()));
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 (!tabList.isEmpty())
tabText += '\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->startNode();
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();
DeprecatedString string = text.deprecatedString();
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->startNode());
bool useClonesOfEnclosingBlock = block && !block->hasTagName(bodyTag) && !block->hasTagName(htmlTag);
DeprecatedStringList list = DeprecatedStringList::split('\n', string, true); // true gets us empty strings in the list
while (!list.isEmpty()) {
DeprecatedString s = list.first();
list.pop_front();
RefPtr<Element> element;
if (s.isEmpty() && list.isEmpty()) {
// 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();
}
}