示例#1
0
JSC::JSValue jsArray(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, PassRefPtr<DOMStringList> stringList)
{
    JSC::MarkedArgumentBuffer list;
    if (stringList) {
        for (unsigned i = 0; i < stringList->length(); ++i)
            list.append(jsStringWithCache(exec, stringList->item(i)));
    }
    return JSC::constructArray(exec, 0, globalObject, list);
}
static inline bool checkReadableStream(JSDOMGlobalObject& globalObject, JSReadableStream* readableStream, JSC::JSValue function)
{
    auto& state = *globalObject.globalExec();

    ASSERT(function);
    JSC::MarkedArgumentBuffer arguments;
    arguments.append(readableStream);
    ASSERT(!arguments.hasOverflowed());
    return ReadableStreamInternal::callFunction(state, function, JSC::jsUndefined(), arguments).isTrue();
}
void HTMLPlugInImageElement::didAddUserAgentShadowRoot(ShadowRoot* root)
{
    HTMLPlugInElement::didAddUserAgentShadowRoot(root);
    if (displayState() >= PreparingPluginReplacement)
        return;

    Page* page = document().page();
    if (!page)
        return;

    // Reset any author styles that may apply as we only want explicit
    // styles defined in the injected user agents stylesheets to specify
    // the look-and-feel of the snapshotted plug-in overlay. 
    root->setResetStyleInheritance(true);
    
    String mimeType = loadedMimeType();

    DOMWrapperWorld& isolatedWorld = plugInImageElementIsolatedWorld();
    document().ensurePlugInsInjectedScript(isolatedWorld);

    ScriptController& scriptController = document().frame()->script();
    JSDOMGlobalObject* globalObject = JSC::jsCast<JSDOMGlobalObject*>(scriptController.globalObject(isolatedWorld));
    JSC::ExecState* exec = globalObject->globalExec();

    JSC::JSLockHolder lock(exec);

    JSC::MarkedArgumentBuffer argList;
    argList.append(toJS(exec, globalObject, root));
    argList.append(jsString(exec, titleText(page, mimeType)));
    argList.append(jsString(exec, subtitleText(page, mimeType)));
    
    // This parameter determines whether or not the snapshot overlay should always be visible over the plugin snapshot.
    // If no snapshot was found then we want the overlay to be visible.
    argList.append(JSC::jsBoolean(!m_snapshotImage));

    // It is expected the JS file provides a createOverlay(shadowRoot, title, subtitle) function.
    JSC::JSObject* overlay = globalObject->get(exec, JSC::Identifier::fromString(exec, "createOverlay")).toObject(exec);
    if (!overlay) {
        ASSERT(exec->hadException());
        exec->clearException();
        return;
    }
    JSC::CallData callData;
    JSC::CallType callType = overlay->methodTable()->getCallData(overlay, callData);
    if (callType == JSC::CallType::None)
        return;

    JSC::call(exec, overlay, callType, callData, globalObject, argList);
    exec->clearException();
}
JSValue JSWebGLRenderingContextBase::getAttachedShaders(ExecState* exec)
{
    if (exec->argumentCount() < 1)
        return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
    ExceptionCode ec = 0;
    WebGLRenderingContextBase& context = impl();
    WebGLProgram* program = JSWebGLProgram::toWrapped(exec->uncheckedArgument(0));
    if (!program && !exec->uncheckedArgument(0).isUndefinedOrNull())
        return throwTypeError(exec);
    Vector<RefPtr<WebGLShader>> shaders;
    bool succeed = context.getAttachedShaders(program, shaders, ec);
    if (ec) {
        setDOMException(exec, ec);
        return jsNull();
    }
    if (!succeed)
        return jsNull();
    JSC::MarkedArgumentBuffer list;
    for (size_t ii = 0; ii < shaders.size(); ++ii)
        list.append(toJS(exec, globalObject(), shaders[ii].get()));
    return constructArray(exec, 0, globalObject(), list);
}