Source/web/WebWorkerClientImpl.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * in the documentation and/or other materials provided with the
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#include "config.h"
#include "WebWorkerClientImpl.h"

#include "core/dom/Document.h"
#include "core/dom/ExecutionContext.h"
#include "core/inspector/ScriptCallStack.h"
#include "core/workers/Worker.h"
#include "core/workers/WorkerClients.h"
#include "core/workers/WorkerMessagingProxy.h"
#include "wtf/OwnPtr.h"
#include "wtf/Threading.h"

#include "WebFrameImpl.h"
#include "WebPermissionClient.h"
#include "WebViewImpl.h"
#include "WorkerFileSystemClient.h"
#include "public/platform/WebString.h"
#include "public/web/WebSecurityOrigin.h"

using namespace WebCore;

namespace WebKit {

// Chromium-specific decorator of WorkerMessagingProxy.

// static
WorkerGlobalScopeProxy* WebWorkerClientImpl::createWorkerGlobalScopeProxy(Worker* worker)
{
    if (worker->executionContext()->isDocument()) {
        Document* document = toDocument(worker->executionContext());
        WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
        OwnPtr<WorkerClients> workerClients = WorkerClients::create();
        provideLocalFileSystemToWorker(workerClients.get(), WorkerFileSystemClient::create());
        WebWorkerClientImpl* proxy = new WebWorkerClientImpl(worker, webFrame, workerClients.release());
        return proxy;
    }
    ASSERT_NOT_REACHED();
    return 0;
}

void WebWorkerClientImpl::terminateWorkerGlobalScope()
{
    m_webFrame = 0;
    WebCore::WorkerMessagingProxy::terminateWorkerGlobalScope();
}

WebWorkerBase* WebWorkerClientImpl::toWebWorkerBase()
{
    return this;
}

WebView* WebWorkerClientImpl::view() const
{
    if (askedToTerminate())
        return 0;
    return m_webFrame->view();
}

bool WebWorkerClientImpl::allowDatabase(WebFrame*, const WebString& name, const WebString& displayName, unsigned long estimatedSize)
{
    if (askedToTerminate())
        return false;
    WebKit::WebViewImpl* webView = m_webFrame->viewImpl();
    if (!webView)
        return false;
    return !webView->permissionClient() || webView->permissionClient()->allowDatabase(m_webFrame, name, displayName, estimatedSize);
}

bool WebWorkerClientImpl::allowFileSystem()
{
    if (askedToTerminate())
        return false;
    WebKit::WebViewImpl* webView = m_webFrame->viewImpl();
    if (!webView)
        return false;
    return !webView->permissionClient() || webView->permissionClient()->allowFileSystem(m_webFrame);
}

bool WebWorkerClientImpl::allowIndexedDB(const WebString& name)
{
    if (askedToTerminate())
        return false;
    WebKit::WebViewImpl* webView = m_webFrame->viewImpl();
    if (!webView)
        return false;
    return !webView->permissionClient() || webView->permissionClient()->allowIndexedDB(m_webFrame, name, WebSecurityOrigin());
}

WebWorkerClientImpl::WebWorkerClientImpl(Worker* worker, WebFrameImpl* webFrame, PassOwnPtr<WorkerClients> workerClients)
    : WebCore::WorkerMessagingProxy(worker, workerClients)
    , m_webFrame(webFrame)
{
}

WebWorkerClientImpl::~WebWorkerClientImpl()
{
}

} // namespace WebKit