void visibleTextQuads(const Range& range, Vector<FloatQuad>& quads, bool useSelectionHeight)
{
// Range::textQuads includes hidden text, which we don't want.
// To work around this, this is a copy of it which skips hidden elements.
Node* startContainer = range.startContainer();
Node* endContainer = range.endContainer();
if (!startContainer || !endContainer)
return;
Node* stopNode = range.pastLastNode();
for (Node* node = range.firstNode(); node != stopNode; node = node->traverseNextNode()) {
RenderObject* r = node->renderer();
if (!r || !r->isText())
continue;
if (r->style()->visibility() != VISIBLE)
continue;
RenderText* renderText = toRenderText(r);
int startOffset = node == startContainer ? range.startOffset() : 0;
int endOffset = node == endContainer ? range.endOffset() : std::numeric_limits<int>::max();
renderText->absoluteQuadsForRange(quads, startOffset, endOffset, useSelectionHeight);
}
}
static bool shouldPreserveNewline(const Range& range)
{
if (Node* node = range.firstNode()) {
if (RenderObject* renderer = node->renderer())
return renderer->style()->preserveNewline();
}
if (Node* node = range.startPosition().anchorNode()) {
if (RenderObject* renderer = node->renderer())
return renderer->style()->preserveNewline();
}
return false;
}
static bool hasNonInlineOrReplacedElements(const Range& range)
{
Node* stopNode = range.pastLastNode();
for (Node* node = range.firstNode(); node != stopNode; node = NodeTraversal::next(*node)) {
if (!node)
continue;
RenderObject* renderer = node->renderer();
if (!renderer)
continue;
if ((!renderer->isInline() || renderer->isReplaced()) && range.intersectsNode(node, ASSERT_NO_EXCEPTION))
return true;
}
return false;
}
PassRefPtr<DocumentFragment> createFragmentFromText(Range& context, const String& text)
{
Document& document = context.ownerDocument();
RefPtr<DocumentFragment> fragment = document.createDocumentFragment();
if (text.isEmpty())
return fragment.release();
String string = text;
string.replace("\r\n", "\n");
string.replace('\r', '\n');
if (contextPreservesNewline(context)) {
fragment->appendChild(document.createTextNode(string), ASSERT_NO_EXCEPTION);
if (string.endsWith('\n')) {
RefPtr<Element> element = createBreakElement(document);
element->setAttribute(classAttr, AppleInterchangeNewline);
fragment->appendChild(element.release(), ASSERT_NO_EXCEPTION);
}
return fragment.release();
}
// A string with no newlines gets added inline, rather than being put into a paragraph.
if (string.find('\n') == notFound) {
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 = toElement(blockNode);
bool useClonesOfEnclosingBlock = blockNode
&& blockNode->isElementNode()
&& !block->hasTagName(bodyTag)
&& !block->hasTagName(htmlTag)
&& block != editableRootForPosition(context.startPosition());
bool useLineBreak = enclosingTextFormControl(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 (useLineBreak) {
element = createBreakElement(document);
fillContainerFromString(fragment.get(), s);
} else {
if (useClonesOfEnclosingBlock)
element = block->cloneElementWithoutChildren();
else
element = createDefaultParagraphElement(document);
fillContainerFromString(element.get(), s);
}
fragment->appendChild(element.release(), ASSERT_NO_EXCEPTION);
}
return fragment.release();
}
// 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()
static String createMarkupInternal(Document& document, const Range& range, const Range& updatedRange, Vector<Node*>* nodes,
EAnnotateForInterchange shouldAnnotate, bool convertBlocksToInlines, EAbsoluteURLs shouldResolveURLs)
{
DEFINE_STATIC_LOCAL(const String, interchangeNewlineString, (ASCIILiteral("<br class=\"" AppleInterchangeNewline "\">")));
bool collapsed = updatedRange.collapsed(ASSERT_NO_EXCEPTION);
if (collapsed)
return emptyString();
Node* commonAncestor = updatedRange.commonAncestorContainer(ASSERT_NO_EXCEPTION);
if (!commonAncestor)
return emptyString();
document.updateLayoutIgnorePendingStylesheets();
Node* body = enclosingNodeWithTag(firstPositionInNode(commonAncestor), bodyTag);
Node* fullySelectedRoot = 0;
// FIXME: Do this for all fully selected blocks, not just the body.
if (body && areRangesEqual(VisibleSelection::selectionFromContentsOfNode(body).toNormalizedRange().get(), &range))
fullySelectedRoot = body;
Node* specialCommonAncestor = highestAncestorToWrapMarkup(&updatedRange, shouldAnnotate);
StyledMarkupAccumulator accumulator(nodes, shouldResolveURLs, shouldAnnotate, &updatedRange, specialCommonAncestor);
Node* pastEnd = updatedRange.pastLastNode();
Node* startNode = updatedRange.firstNode();
VisiblePosition visibleStart(updatedRange.startPosition(), VP_DEFAULT_AFFINITY);
VisiblePosition visibleEnd(updatedRange.endPosition(), VP_DEFAULT_AFFINITY);
if (shouldAnnotate == AnnotateForInterchange && needInterchangeNewlineAfter(visibleStart)) {
if (visibleStart == visibleEnd.previous())
return interchangeNewlineString;
accumulator.appendString(interchangeNewlineString);
startNode = visibleStart.next().deepEquivalent().deprecatedNode();
if (pastEnd && Range::compareBoundaryPoints(startNode, 0, pastEnd, 0, ASSERT_NO_EXCEPTION) >= 0)
return interchangeNewlineString;
}
Node* lastClosed = accumulator.serializeNodes(startNode, pastEnd);
if (specialCommonAncestor && lastClosed) {
// Also include all of the ancestors of lastClosed up to this special ancestor.
for (ContainerNode* ancestor = lastClosed->parentNode(); ancestor; ancestor = ancestor->parentNode()) {
if (ancestor == fullySelectedRoot && !convertBlocksToInlines) {
RefPtr<EditingStyle> fullySelectedRootStyle = 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 ((!fullySelectedRootStyle || !fullySelectedRootStyle->style() || !fullySelectedRootStyle->style()->getPropertyCSSValue(CSSPropertyBackgroundImage))
&& toElement(fullySelectedRoot)->hasAttribute(backgroundAttr))
fullySelectedRootStyle->style()->setProperty(CSSPropertyBackgroundImage, "url('" + toElement(fullySelectedRoot)->getAttribute(backgroundAttr) + "')");
if (fullySelectedRootStyle->style()) {
// 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->style(), CSSPropertyTextDecoration))
fullySelectedRootStyle->style()->setProperty(CSSPropertyTextDecoration, CSSValueNone);
if (!propertyMissingOrEqualToNone(fullySelectedRootStyle->style(), CSSPropertyWebkitTextDecorationsInEffect))
fullySelectedRootStyle->style()->setProperty(CSSPropertyWebkitTextDecorationsInEffect, CSSValueNone);
accumulator.wrapWithStyleNode(fullySelectedRootStyle->style(), 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.
accumulator.wrapWithNode(*ancestor, convertBlocksToInlines, StyledMarkupAccumulator::DoesNotFullySelectNode);
}
if (nodes)
nodes->append(ancestor);
lastClosed = ancestor;
if (ancestor == specialCommonAncestor)
break;
}
}
// FIXME: The interchange newline should be placed in the block that it's in, not after all of the content, unconditionally.
if (shouldAnnotate == AnnotateForInterchange && needInterchangeNewlineAfter(visibleEnd.previous()))
accumulator.appendString(interchangeNewlineString);
return accumulator.takeResults();
}