interface ICoreWebView2SharedWorkerManager

interface ICoreWebView2SharedWorkerManager
  : public IUnknown

This interface manages shared workers in WebView2.

Summary

Applies to

Members

add_SharedWorkerCreated

Adds an event handler for the SharedWorkerCreated event.

public HRESULT add_SharedWorkerCreated(ICoreWebView2SharedWorkerCreatedEventHandler * eventHandler, EventRegistrationToken * token)

Add an event handler for the SharedWorkerCreated event.

A SharedWorker is a specific type of worker that can be accessed from several browsing contexts, such as multiple windows, iframes, or even other workers. Unlike Dedicated Workers, which have their own separate global scope, SharedWorkers share a common global scope called SharedWorkerGlobalScope.

This event is raised when a web application creates a shared worker using the new SharedWorker("worker.js") method. See the Shared Worker for more information.

    CHECK_FAILURE(m_sharedWorkerManager->add_SharedWorkerCreated(
        Callback<ICoreWebView2SharedWorkerCreatedEventHandler>(
            [this](
                ICoreWebView2SharedWorkerManager* sender,
                ICoreWebView2SharedWorkerCreatedEventArgs* args)
            {
                wil::com_ptr<ICoreWebView2SharedWorker> sharedWorker;
                CHECK_FAILURE(args->get_Worker(&sharedWorker));

                wil::unique_cotaskmem_string scriptUri;
                CHECK_FAILURE(sharedWorker->get_ScriptUri(&scriptUri));

                std::wstring scriptUriStr(scriptUri.get());
                m_appWindow->AsyncMessageBox(scriptUriStr, L"Shared worker is created");

                // Subscribe to worker destroying event
                sharedWorker->add_Destroying(
                    Callback<ICoreWebView2SharedWorkerDestroyingEventHandler>(
                        [this, scriptUriStr](
                            ICoreWebView2SharedWorker* sender, IUnknown* args) -> HRESULT
                        {
                            /*Cleanup on worker destruction*/
                            m_appWindow->AsyncMessageBox(
                                scriptUriStr, L"Shared worker is destroyed");
                            return S_OK;
                        })
                        .Get(),
                    nullptr);

                return S_OK;
            })
            .Get(),
        &m_sharedWorkerCreatedToken));

GetSharedWorkers

Gets a list of the shared workers created under the same profile.

public HRESULT GetSharedWorkers(ICoreWebView2GetSharedWorkersCompletedHandler * handler)

remove_SharedWorkerCreated

Removes an event handler previously added with add_SharedWorkerCreated.

public HRESULT remove_SharedWorkerCreated(EventRegistrationToken token)