void DOMSelection::addRange(Range& range)
{
if (!m_frame)
return;
FrameSelection& selection = m_frame->selection();
if (selection.isNone()) {
selection.moveTo(&range);
return;
}
RefPtr<Range> normalizedRange = selection.selection().toNormalizedRange();
if (!normalizedRange)
return;
if (range.compareBoundaryPoints(Range::START_TO_START, *normalizedRange, IGNORE_EXCEPTION) == -1) {
// We don't support discontiguous selection. We don't do anything if r and range don't intersect.
if (range.compareBoundaryPoints(Range::START_TO_END, *normalizedRange, IGNORE_EXCEPTION) > -1) {
if (range.compareBoundaryPoints(Range::END_TO_END, *normalizedRange, IGNORE_EXCEPTION) == -1) {
// The original range and r intersect.
selection.moveTo(range.startPosition(), normalizedRange->endPosition(), DOWNSTREAM);
} else {
// r contains the original range.
selection.moveTo(&range);
}
}
} else {
// We don't support discontiguous selection. We don't do anything if r and range don't intersect.
ExceptionCode ec = 0;
if (range.compareBoundaryPoints(Range::END_TO_START, *normalizedRange, ec) < 1 && !ec) {
if (range.compareBoundaryPoints(Range::END_TO_END, *normalizedRange, IGNORE_EXCEPTION) == -1) {
// The original range contains r.
selection.moveTo(normalizedRange.get());
} else {
// The original range and r intersect.
selection.moveTo(normalizedRange->startPosition(), range.endPosition(), DOWNSTREAM);
}
}
}
}
JSValue* jsRangePrototypeFunctionCompareBoundaryPoints(ExecState* exec, JSObject*, JSValue* thisValue, const ArgList& args)
{
if (!thisValue->isObject(&JSRange::s_info))
return throwError(exec, TypeError);
JSRange* castedThisObj = static_cast<JSRange*>(thisValue);
Range* imp = static_cast<Range*>(castedThisObj->impl());
ExceptionCode ec = 0;
Range::CompareHow how = static_cast<Range::CompareHow>(args[0]->toInt32(exec));
Range* sourceRange = toRange(args[1]);
KJS::JSValue* result = jsNumber(exec, imp->compareBoundaryPoints(how, sourceRange, ec));
setDOMException(exec, ec);
return result;
}
void DOMSelection::addRange(Range* newRange) {
DCHECK(newRange);
if (!isAvailable())
return;
if (newRange->ownerDocument() != frame()->document())
return;
if (!newRange->isConnected()) {
addConsoleError("The given range isn't in document.");
return;
}
FrameSelection& selection = frame()->selection();
if (newRange->ownerDocument() != selection.document()) {
// "editing/selection/selection-in-iframe-removed-crash.html" goes here.
return;
}
// TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
// needs to be audited. See http://crbug.com/590369 for more details.
// In the long term, we should change FrameSelection::setSelection to take a
// parameter that does not require clean layout, so that modifying selection
// no longer performs synchronous layout by itself.
frame()->document()->updateStyleAndLayoutIgnorePendingStylesheets();
if (selection.isNone()) {
selection.setSelectedRange(EphemeralRange(newRange), VP_DEFAULT_AFFINITY);
return;
}
Range* originalRange = selection.firstRange();
if (originalRange->startContainer()->document() !=
newRange->startContainer()->document()) {
addConsoleError(
"The given range does not belong to the current selection's document.");
return;
}
if (originalRange->startContainer()->treeScope() !=
newRange->startContainer()->treeScope()) {
addConsoleError(
"The given range and the current selection belong to two different "
"document fragments.");
return;
}
if (originalRange->compareBoundaryPoints(Range::kStartToEnd, newRange,
ASSERT_NO_EXCEPTION) < 0 ||
newRange->compareBoundaryPoints(Range::kStartToEnd, originalRange,
ASSERT_NO_EXCEPTION) < 0) {
addConsoleError("Discontiguous selection is not supported.");
return;
}
// FIXME: "Merge the ranges if they intersect" is Blink-specific behavior;
// other browsers supporting discontiguous selection (obviously) keep each
// Range added and return it in getRangeAt(). But it's unclear if we can
// really do the same, since we don't support discontiguous selection. Further
// discussions at
// <https://code.google.com/p/chromium/issues/detail?id=353069>.
Range* start = originalRange->compareBoundaryPoints(
Range::kStartToStart, newRange, ASSERT_NO_EXCEPTION) < 0
? originalRange
: newRange;
Range* end = originalRange->compareBoundaryPoints(Range::kEndToEnd, newRange,
ASSERT_NO_EXCEPTION) < 0
? newRange
: originalRange;
const EphemeralRange merged =
EphemeralRange(start->startPosition(), end->endPosition());
TextAffinity affinity = selection.selection().affinity();
selection.setSelectedRange(merged, affinity);
}
JSValue* JSRangePrototypeFunction::callAsFunction(ExecState* exec, JSObject* thisObj, const List& args)
{
if (!thisObj->inherits(&JSRange::info))
return throwError(exec, TypeError);
Range* imp = static_cast<Range*>(static_cast<JSRange*>(thisObj)->impl());
switch (id) {
case JSRange::SetStartFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
bool offsetOk;
int offset = args[1]->toInt32(exec, offsetOk);
if (!offsetOk) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return jsUndefined();
}
imp->setStart(refNode, offset, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SetEndFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
bool offsetOk;
int offset = args[1]->toInt32(exec, offsetOk);
if (!offsetOk) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return jsUndefined();
}
imp->setEnd(refNode, offset, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SetStartBeforeFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
imp->setStartBefore(refNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SetStartAfterFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
imp->setStartAfter(refNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SetEndBeforeFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
imp->setEndBefore(refNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SetEndAfterFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
imp->setEndAfter(refNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::CollapseFuncNum: {
ExceptionCode ec = 0;
bool toStart = args[0]->toBoolean(exec);
imp->collapse(toStart, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SelectNodeFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
imp->selectNode(refNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SelectNodeContentsFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
imp->selectNodeContents(refNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::CompareBoundaryPointsFuncNum: {
ExceptionCode ec = 0;
Range::CompareHow how = static_cast<Range::CompareHow>(args[0]->toInt32(exec));
Range* sourceRange = toRange(args[1]);
KJS::JSValue* result = jsNumber(imp->compareBoundaryPoints(how, sourceRange, ec));
setDOMException(exec, ec);
return result;
}
case JSRange::DeleteContentsFuncNum: {
ExceptionCode ec = 0;
imp->deleteContents(ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::ExtractContentsFuncNum: {
ExceptionCode ec = 0;
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->extractContents(ec)));
setDOMException(exec, ec);
return result;
}
case JSRange::CloneContentsFuncNum: {
ExceptionCode ec = 0;
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->cloneContents(ec)));
setDOMException(exec, ec);
return result;
}
case JSRange::InsertNodeFuncNum: {
ExceptionCode ec = 0;
Node* newNode = toNode(args[0]);
imp->insertNode(newNode, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::SurroundContentsFuncNum: {
ExceptionCode ec = 0;
Node* newParent = toNode(args[0]);
imp->surroundContents(newParent, ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::CloneRangeFuncNum: {
ExceptionCode ec = 0;
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->cloneRange(ec)));
setDOMException(exec, ec);
return result;
}
case JSRange::ToStringFuncNum: {
ExceptionCode ec = 0;
KJS::JSValue* result = jsString(imp->toString(ec));
setDOMException(exec, ec);
return result;
}
case JSRange::DetachFuncNum: {
ExceptionCode ec = 0;
imp->detach(ec);
setDOMException(exec, ec);
return jsUndefined();
}
case JSRange::CreateContextualFragmentFuncNum: {
ExceptionCode ec = 0;
String html = args[0]->toString(exec);
KJS::JSValue* result = toJS(exec, WTF::getPtr(imp->createContextualFragment(html, ec)));
setDOMException(exec, ec);
return result;
}
case JSRange::IntersectsNodeFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
KJS::JSValue* result = jsBoolean(imp->intersectsNode(refNode, ec));
setDOMException(exec, ec);
return result;
}
case JSRange::CompareNodeFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
KJS::JSValue* result = jsNumber(imp->compareNode(refNode, ec));
setDOMException(exec, ec);
return result;
}
case JSRange::ComparePointFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
bool offsetOk;
int offset = args[1]->toInt32(exec, offsetOk);
if (!offsetOk) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return jsUndefined();
}
KJS::JSValue* result = jsNumber(imp->comparePoint(refNode, offset, ec));
setDOMException(exec, ec);
return result;
}
case JSRange::IsPointInRangeFuncNum: {
ExceptionCode ec = 0;
Node* refNode = toNode(args[0]);
bool offsetOk;
int offset = args[1]->toInt32(exec, offsetOk);
if (!offsetOk) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return jsUndefined();
}
KJS::JSValue* result = jsBoolean(imp->isPointInRange(refNode, offset, ec));
setDOMException(exec, ec);
return result;
}
}
return 0;
}