JSDocumentCustom.cpp [plain text]
#include "config.h"
#include "JSDocument.h"
#include "CustomElementDefinitions.h"
#include "ExceptionCode.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "HTMLDocument.h"
#include "JSCanvasRenderingContext2D.h"
#include "JSDOMWindowCustom.h"
#include "JSHTMLDocument.h"
#include "JSLocation.h"
#include "JSNodeOrString.h"
#include "JSSVGDocument.h"
#include "Location.h"
#include "NodeTraversal.h"
#include "SVGDocument.h"
#include "ScriptController.h"
#include "TouchList.h"
#include "XMLDocument.h"
#include <wtf/GetPtr.h>
#if ENABLE(WEBGL)
#include "JSWebGLRenderingContextBase.h"
#endif
#if ENABLE(TOUCH_EVENTS)
#include "JSTouch.h"
#include "JSTouchList.h"
#endif
using namespace JSC;
namespace WebCore {
static inline JSValue createNewDocumentWrapper(ExecState& state, JSDOMGlobalObject& globalObject, Ref<Document>&& passedDocument)
{
auto& document = passedDocument.get();
JSObject* wrapper;
if (document.isHTMLDocument())
wrapper = CREATE_DOM_WRAPPER(&globalObject, HTMLDocument, WTFMove(passedDocument));
else if (document.isSVGDocument())
wrapper = CREATE_DOM_WRAPPER(&globalObject, SVGDocument, WTFMove(passedDocument));
else if (document.isXMLDocument())
wrapper = CREATE_DOM_WRAPPER(&globalObject, XMLDocument, WTFMove(passedDocument));
else
wrapper = CREATE_DOM_WRAPPER(&globalObject, Document, WTFMove(passedDocument));
reportMemoryForDocumentIfFrameless(state, document);
return wrapper;
}
JSObject* cachedDocumentWrapper(ExecState& state, JSDOMGlobalObject& globalObject, Document& document)
{
if (auto* wrapper = getCachedWrapper(globalObject.world(), document))
return wrapper;
auto* window = document.domWindow();
if (!window)
return nullptr;
return getCachedWrapper(toJSDOMWindow(toJS(&state, *window))->world(), document);
}
void reportMemoryForDocumentIfFrameless(ExecState& state, Document& document)
{
if (document.frame())
return;
size_t memoryCost = 0;
for (Node* node = &document; node; node = NodeTraversal::next(*node))
memoryCost += node->approximateMemoryCost();
state.heap()->deprecatedReportExtraMemory(memoryCost);
}
JSValue toJSNewlyCreated(ExecState* state, JSDOMGlobalObject* globalObject, Ref<Document>&& document)
{
return createNewDocumentWrapper(*state, *globalObject, WTFMove(document));
}
JSValue toJS(ExecState* state, JSDOMGlobalObject* globalObject, Document& document)
{
if (auto* wrapper = cachedDocumentWrapper(*state, *globalObject, document))
return wrapper;
return toJSNewlyCreated(state, globalObject, Ref<Document>(document));
}
JSValue JSDocument::prepend(ExecState& state)
{
ExceptionCode ec = 0;
wrapped().prepend(toNodeOrStringVector(state), ec);
setDOMException(&state, ec);
return jsUndefined();
}
JSValue JSDocument::append(ExecState& state)
{
ExceptionCode ec = 0;
wrapped().append(toNodeOrStringVector(state), ec);
setDOMException(&state, ec);
return jsUndefined();
}
#if ENABLE(TOUCH_EVENTS)
JSValue JSDocument::createTouchList(ExecState& state)
{
auto touchList = TouchList::create();
for (size_t i = 0; i < state.argumentCount(); ++i) {
auto* item = JSTouch::toWrapped(state.uncheckedArgument(i));
if (!item)
return JSValue::decode(throwArgumentTypeError(state, i, "touches", "Document", "createTouchList", "Touch"));
touchList->append(*item);
}
return toJSNewlyCreated(&state, globalObject(), WTFMove(touchList));
}
#endif
#if ENABLE(CUSTOM_ELEMENTS)
JSValue JSDocument::defineElement(ExecState& state)
{
AtomicString tagName(state.argument(0).toString(&state)->toAtomicString(&state));
if (UNLIKELY(state.hadException()))
return jsUndefined();
JSObject* object = state.argument(1).getObject();
ConstructData callData;
if (!object || object->methodTable()->getConstructData(object, callData) == ConstructType::None)
return throwTypeError(&state, ASCIILiteral("The second argument must be a constructor"));
Document& document = wrapped();
if (!document.domWindow()) {
throwNotSupportedError(state, "Cannot define a custom element in a docuemnt without a browsing context");
return jsUndefined();
}
switch (Document::validateCustomElementName(tagName)) {
case CustomElementNameValidationStatus::Valid:
break;
case CustomElementNameValidationStatus::ConflictsWithBuiltinNames:
return throwSyntaxError(&state, "Custom element name cannot be same as one of the builtin elements");
case CustomElementNameValidationStatus::NoHyphen:
return throwSyntaxError(&state, "Custom element name must contain a hyphen");
case CustomElementNameValidationStatus::ContainsUpperCase:
return throwSyntaxError(&state, "Custom element name cannot contain an upper case letter");
}
auto& definitions = document.ensureCustomElementDefinitions();
if (definitions.findInterface(tagName)) {
throwNotSupportedError(state, "Cannot define multiple custom elements with the same tag name");
return jsUndefined();
}
if (definitions.containsConstructor(object)) {
throwNotSupportedError(state, "Cannot define multiple custom elements with the same class");
return jsUndefined();
}
PrivateName uniquePrivateName;
globalObject()->putDirect(globalObject()->vm(), uniquePrivateName, object);
QualifiedName name(nullAtom, tagName, HTMLNames::xhtmlNamespaceURI);
definitions.addElementDefinition(JSCustomElementInterface::create(name, object, globalObject()));
return jsUndefined();
}
#endif
}