JSValue* JSRange::getValueProperty(ExecState* exec, int token) const
{
switch (token) {
case StartContainerAttrNum: {
ExceptionCode ec = 0;
Range* imp = static_cast<Range*>(impl());
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->startContainer(ec)));
setDOMException(exec, ec);
return result;
}
case StartOffsetAttrNum: {
ExceptionCode ec = 0;
Range* imp = static_cast<Range*>(impl());
KJS::JSValue* result = jsNumber(imp->startOffset(ec));
setDOMException(exec, ec);
return result;
}
case EndContainerAttrNum: {
ExceptionCode ec = 0;
Range* imp = static_cast<Range*>(impl());
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->endContainer(ec)));
setDOMException(exec, ec);
return result;
}
case EndOffsetAttrNum: {
ExceptionCode ec = 0;
Range* imp = static_cast<Range*>(impl());
KJS::JSValue* result = jsNumber(imp->endOffset(ec));
setDOMException(exec, ec);
return result;
}
case CollapsedAttrNum: {
ExceptionCode ec = 0;
Range* imp = static_cast<Range*>(impl());
KJS::JSValue* result = jsBoolean(imp->collapsed(ec));
setDOMException(exec, ec);
return result;
}
case CommonAncestorContainerAttrNum: {
ExceptionCode ec = 0;
Range* imp = static_cast<Range*>(impl());
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->commonAncestorContainer(ec)));
setDOMException(exec, ec);
return result;
}
case ConstructorAttrNum:
return getConstructor(exec);
}
return 0;
}
void TextFinder::scopeStringMatches(int identifier,
const WebString& searchText,
const WebFindOptions& options,
bool reset) {
// TODO(dglazkov): The reset/continue cases need to be untangled into two
// separate functions. This collation of logic is unnecessary and adds to
// overall complexity of the code.
if (reset) {
// This is a brand new search, so we need to reset everything.
// Scoping is just about to begin.
m_scopingInProgress = true;
// Need to keep the current identifier locally in order to finish the
// request in case the frame is detached during the process.
m_findRequestIdentifier = identifier;
// Clear highlighting for this frame.
unmarkAllTextMatches();
// Clear the tickmarks and results cache.
clearFindMatchesCache();
// Clear the counters from last operation.
m_lastMatchCount = 0;
m_nextInvalidateAfter = 0;
m_resumeScopingFromRange = nullptr;
// The view might be null on detached frames.
LocalFrame* frame = ownerFrame().frame();
if (frame && frame->page())
m_frameScoping = true;
// Now, defer scoping until later to allow find operation to finish quickly.
scopeStringMatchesSoon(
identifier, searchText, options,
false); // false means just reset, so don't do it again.
return;
}
if (!shouldScopeMatches(searchText, options)) {
finishCurrentScopingEffort(identifier);
return;
}
PositionInFlatTree searchStart =
PositionInFlatTree::firstPositionInNode(ownerFrame().frame()->document());
PositionInFlatTree searchEnd =
PositionInFlatTree::lastPositionInNode(ownerFrame().frame()->document());
DCHECK_EQ(searchStart.document(), searchEnd.document());
if (m_resumeScopingFromRange) {
// This is a continuation of a scoping operation that timed out and didn't
// complete last time around, so we should start from where we left off.
DCHECK(m_resumeScopingFromRange->collapsed());
searchStart = fromPositionInDOMTree<EditingInFlatTreeStrategy>(
m_resumeScopingFromRange->endPosition());
if (searchStart.document() != searchEnd.document())
return;
}
// TODO(dglazkov): The use of updateStyleAndLayoutIgnorePendingStylesheets
// needs to be audited. see http://crbug.com/590369 for more details.
searchStart.document()->updateStyleAndLayoutIgnorePendingStylesheets();
// This timeout controls how long we scope before releasing control. This
// value does not prevent us from running for longer than this, but it is
// periodically checked to see if we have exceeded our allocated time.
const double maxScopingDuration = 0.1; // seconds
int matchCount = 0;
bool timedOut = false;
double startTime = currentTime();
do {
// Find next occurrence of the search string.
// FIXME: (http://crbug.com/6818) This WebKit operation may run for longer
// than the timeout value, and is not interruptible as it is currently
// written. We may need to rewrite it with interruptibility in mind, or
// find an alternative.
const EphemeralRangeInFlatTree result =
findPlainText(EphemeralRangeInFlatTree(searchStart, searchEnd),
searchText, options.matchCase ? 0 : CaseInsensitive);
if (result.isCollapsed()) {
// Not found.
break;
}
Range* resultRange = Range::create(
result.document(), toPositionInDOMTree(result.startPosition()),
toPositionInDOMTree(result.endPosition()));
if (resultRange->collapsed()) {
// resultRange will be collapsed if the matched text spans over multiple
// TreeScopes. FIXME: Show such matches to users.
searchStart = result.endPosition();
continue;
}
++matchCount;
// Catch a special case where Find found something but doesn't know what
// the bounding box for it is. In this case we set the first match we find
// as the active rect.
IntRect resultBounds = resultRange->boundingBox();
IntRect activeSelectionRect;
if (m_locatingActiveRect) {
activeSelectionRect =
m_activeMatch.get() ? m_activeMatch->boundingBox() : resultBounds;
}
// If the Find function found a match it will have stored where the
// match was found in m_activeSelectionRect on the current frame. If we
// find this rect during scoping it means we have found the active
// tickmark.
bool foundActiveMatch = false;
if (m_locatingActiveRect && (activeSelectionRect == resultBounds)) {
// We have found the active tickmark frame.
m_currentActiveMatchFrame = true;
foundActiveMatch = true;
// We also know which tickmark is active now.
m_activeMatchIndex = matchCount - 1;
// To stop looking for the active tickmark, we set this flag.
m_locatingActiveRect = false;
// Notify browser of new location for the selected rectangle.
reportFindInPageSelection(
ownerFrame().frameView()->contentsToRootFrame(resultBounds),
m_activeMatchIndex + 1, identifier);
}
ownerFrame().frame()->document()->markers().addTextMatchMarker(
EphemeralRange(resultRange), foundActiveMatch);
m_findMatchesCache.append(
FindMatch(resultRange, m_lastMatchCount + matchCount));
// Set the new start for the search range to be the end of the previous
// result range. There is no need to use a VisiblePosition here,
// since findPlainText will use a TextIterator to go over the visible
// text nodes.
searchStart = result.endPosition();
m_resumeScopingFromRange = Range::create(
result.document(), toPositionInDOMTree(result.endPosition()),
toPositionInDOMTree(result.endPosition()));
timedOut = (currentTime() - startTime) >= maxScopingDuration;
} while (!timedOut);
// Remember what we search for last time, so we can skip searching if more
// letters are added to the search string (and last outcome was 0).
m_lastSearchString = searchText;
if (matchCount > 0) {
ownerFrame().frame()->editor().setMarkedTextMatchesAreHighlighted(true);
m_lastMatchCount += matchCount;
// Let the frame know how many matches we found during this pass.
ownerFrame().increaseMatchCount(matchCount, identifier);
}
if (timedOut) {
// If we found anything during this pass, we should redraw. However, we
// don't want to spam too much if the page is extremely long, so if we
// reach a certain point we start throttling the redraw requests.
if (matchCount > 0)
invalidateIfNecessary();
// Scoping effort ran out of time, lets ask for another time-slice.
scopeStringMatchesSoon(identifier, searchText, options,
false); // don't reset.
return; // Done for now, resume work later.
}
finishCurrentScopingEffort(identifier);
}
// 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();
}