bool JSDOMStringMap::deleteProperty(JSCell* cell, ExecState* exec, const Identifier& propertyName)
{
JSDOMStringMap* thisObject = jsCast<JSDOMStringMap*>(cell);
AtomicString stringName = identifierToAtomicString(propertyName);
if (!thisObject->m_impl->contains(stringName))
return false;
ExceptionCode ec = 0;
thisObject->m_impl->deleteItem(stringName, ec);
setDOMException(exec, ec);
return !ec;
}
static JSValue getNamedItems(ExecState* exec, JSHTMLCollection* collection, const Identifier& propertyName)
{
Vector<RefPtr<Node> > namedItems;
collection->impl()->namedItems(identifierToAtomicString(propertyName), namedItems);
if (namedItems.isEmpty())
return jsUndefined();
if (namedItems.size() == 1)
return toJS(exec, collection->globalObject(), namedItems[0].get());
// FIXME: HTML5 specifies that this should be a DynamicNodeList.
// FIXME: HTML5 specifies that non-HTMLOptionsCollection collections should return
// the first matching item instead of a NodeList.
return toJS(exec, collection->globalObject(), StaticNodeList::adopt(namedItems).get());
}
JSValue JSHTMLFormElement::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
{
JSHTMLElement* jsForm = static_cast<JSHTMLFormElement*>(asObject(slotBase));
HTMLFormElement* form = static_cast<HTMLFormElement*>(jsForm->impl());
Vector<RefPtr<Node> > namedItems;
form->getNamedElements(identifierToAtomicString(propertyName), namedItems);
if (namedItems.isEmpty())
return jsUndefined();
if (namedItems.size() == 1)
return toJS(exec, jsForm->globalObject(), namedItems[0].get());
// FIXME: HTML5 specifies that this should be a RadioNodeList.
return toJS(exec, jsForm->globalObject(), StaticNodeList::adopt(namedItems).get());
}
JSValue JSNodeList::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
{
JSNodeList* thisObj = static_cast<JSNodeList*>(asObject(slotBase));
return toJS(exec, thisObj->impl()->itemWithName(identifierToAtomicString(propertyName)));
}
bool JSNodeList::canGetItemsForName(ExecState*, NodeList* impl, const Identifier& propertyName)
{
return impl->itemWithName(identifierToAtomicString(propertyName));
}
bool JSHTMLCollection::canGetItemsForName(ExecState*, HTMLCollection* collection, const Identifier& propertyName)
{
Vector<RefPtr<Node> > namedItems;
collection->namedItems(identifierToAtomicString(propertyName), namedItems);
return !namedItems.isEmpty();
}
bool JSDOMWindow::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
{
// Never allow cross-domain getOwnPropertyDescriptor
if (!allowsAccessFrom(exec))
return false;
const HashEntry* entry;
// We don't want any properties other than "close" and "closed" on a closed window.
if (!impl()->frame()) {
// The following code is safe for cross-domain and same domain use.
// It ignores any custom properties that might be set on the DOMWindow (including a custom prototype).
entry = s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && !(entry->attributes() & Function) && entry->propertyGetter() == jsDOMWindowClosed) {
descriptor.setDescriptor(jsBoolean(true), ReadOnly | DontDelete | DontEnum);
return true;
}
entry = JSDOMWindowPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && (entry->attributes() & Function) && entry->function() == jsDOMWindowPrototypeFunctionClose) {
PropertySlot slot;
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionClose, 0>);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
descriptor.setUndefined();
return true;
}
entry = JSDOMWindow::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry) {
PropertySlot slot;
slot.setCustom(this, entry->propertyGetter());
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
}
// Check for child frames by name before built-in properties to
// match Mozilla. This does not match IE, but some sites end up
// naming frames things that conflict with window properties that
// are in Moz but not IE. Since we have some of these, we have to do
// it the Moz way.
if (impl()->frame()->tree()->child(identifierToAtomicString(propertyName))) {
PropertySlot slot;
slot.setCustom(this, childFrameGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
bool ok;
unsigned i = propertyName.toArrayIndex(ok);
if (ok && i < impl()->frame()->tree()->childCount()) {
PropertySlot slot;
slot.setCustomIndex(this, i, indexGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
// Allow shortcuts like 'Image1' instead of document.images.Image1
Document* document = impl()->frame()->document();
if (document->isHTMLDocument()) {
AtomicStringImpl* atomicPropertyName = findAtomicString(propertyName);
if (atomicPropertyName && (static_cast<HTMLDocument*>(document)->hasNamedItem(atomicPropertyName) || document->hasElementWithId(atomicPropertyName))) {
PropertySlot slot;
slot.setCustom(this, namedItemGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
}
return Base::getOwnPropertyDescriptor(exec, propertyName, descriptor);
}
bool JSDOMWindow::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
{
// When accessing a Window cross-domain, functions are always the native built-in ones, and they
// are not affected by properties changed on the Window or anything in its prototype chain.
// This is consistent with the behavior of Firefox.
const HashEntry* entry;
// We don't want any properties other than "close" and "closed" on a closed window.
if (!impl()->frame()) {
// The following code is safe for cross-domain and same domain use.
// It ignores any custom properties that might be set on the DOMWindow (including a custom prototype).
entry = s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && !(entry->attributes() & Function) && entry->propertyGetter() == jsDOMWindowClosed) {
slot.setCustom(this, entry->propertyGetter());
return true;
}
entry = JSDOMWindowPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && (entry->attributes() & Function) && entry->function() == jsDOMWindowPrototypeFunctionClose) {
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionClose, 0>);
return true;
}
// FIXME: We should have a message here that explains why the property access/function call was
// not allowed.
slot.setUndefined();
return true;
}
// We need to check for cross-domain access here without printing the generic warning message
// because we always allow access to some function, just different ones depending whether access
// is allowed.
String errorMessage;
bool allowsAccess = allowsAccessFrom(exec, errorMessage);
// Look for overrides before looking at any of our own properties, but ignore overrides completely
// if this is cross-domain access.
if (allowsAccess && JSGlobalObject::getOwnPropertySlot(exec, propertyName, slot))
return true;
// We need this code here because otherwise JSDOMWindowBase will stop the search before we even get to the
// prototype due to the blanket same origin (allowsAccessFrom) check at the end of getOwnPropertySlot.
// Also, it's important to get the implementation straight out of the DOMWindow prototype regardless of
// what prototype is actually set on this object.
entry = JSDOMWindowPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry) {
if (entry->attributes() & Function) {
if (entry->function() == jsDOMWindowPrototypeFunctionBlur) {
if (!allowsAccess) {
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionBlur, 0>);
return true;
}
} else if (entry->function() == jsDOMWindowPrototypeFunctionClose) {
if (!allowsAccess) {
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionClose, 0>);
return true;
}
} else if (entry->function() == jsDOMWindowPrototypeFunctionFocus) {
if (!allowsAccess) {
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionFocus, 0>);
return true;
}
} else if (entry->function() == jsDOMWindowPrototypeFunctionPostMessage) {
if (!allowsAccess) {
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionPostMessage, 2>);
return true;
}
} else if (entry->function() == jsDOMWindowPrototypeFunctionShowModalDialog) {
if (!DOMWindow::canShowModalDialog(impl()->frame())) {
slot.setUndefined();
return true;
}
}
}
} else {
// Allow access to toString() cross-domain, but always Object.prototype.toString.
if (propertyName == exec->propertyNames().toString) {
if (!allowsAccess) {
slot.setCustom(this, objectToStringFunctionGetter);
return true;
}
}
}
entry = JSDOMWindow::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry) {
slot.setCustom(this, entry->propertyGetter());
return true;
}
// Check for child frames by name before built-in properties to
// match Mozilla. This does not match IE, but some sites end up
// naming frames things that conflict with window properties that
// are in Moz but not IE. Since we have some of these, we have to do
// it the Moz way.
if (impl()->frame()->tree()->child(identifierToAtomicString(propertyName))) {
slot.setCustom(this, childFrameGetter);
return true;
}
// Do prototype lookup early so that functions and attributes in the prototype can have
// precedence over the index and name getters.
JSValue proto = prototype();
if (proto.isObject()) {
if (asObject(proto)->getPropertySlot(exec, propertyName, slot)) {
if (!allowsAccess) {
printErrorMessage(errorMessage);
slot.setUndefined();
}
return true;
}
}
// FIXME: Search the whole frame hierarchy somewhere around here.
// We need to test the correct priority order.
// allow window[1] or parent[1] etc. (#56983)
bool ok;
unsigned i = propertyName.toArrayIndex(ok);
if (ok && i < impl()->frame()->tree()->childCount()) {
slot.setCustomIndex(this, i, indexGetter);
return true;
}
if (!allowsAccess) {
printErrorMessage(errorMessage);
slot.setUndefined();
return true;
}
// Allow shortcuts like 'Image1' instead of document.images.Image1
Document* document = impl()->frame()->document();
if (document->isHTMLDocument()) {
AtomicStringImpl* atomicPropertyName = findAtomicString(propertyName);
if (atomicPropertyName && (static_cast<HTMLDocument*>(document)->hasNamedItem(atomicPropertyName) || document->hasElementWithId(atomicPropertyName))) {
slot.setCustom(this, namedItemGetter);
return true;
}
}
return Base::getOwnPropertySlot(exec, propertyName, slot);
}
static JSValue childFrameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
{
return toJS(exec, static_cast<JSDOMWindow*>(asObject(slotBase))->impl()->frame()->tree()->child(identifierToAtomicString(propertyName))->domWindow());
}
JSValue JSDOMStringMap::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
{
JSDOMStringMap* thisObj = static_cast<JSDOMStringMap*>(asObject(slotBase));
return jsString(exec, thisObj->impl()->item(identifierToAtomicString(propertyName)));
}
bool JSDOMStringMap::canGetItemsForName(ExecState*, DOMStringMap* impl, const Identifier& propertyName)
{
return impl->contains(identifierToAtomicString(propertyName));
}
bool JSHTMLCollection::canGetItemsForName(ExecState*, HTMLCollection* collection, const Identifier& propertyName)
{
return collection->hasNamedItem(identifierToAtomicString(propertyName));
}
bool JSHTMLFormElement::canGetItemsForName(ExecState*, HTMLFormElement* form, const Identifier& propertyName)
{
Vector<RefPtr<Node> > namedItems;
form->getNamedElements(identifierToAtomicString(propertyName), namedItems);
return namedItems.size();
}