1 files changed, 0 insertions, 316 deletions
diff --git a/WebCore/dom/WorkerMessagingProxy.cpp b/WebCore/dom/WorkerMessagingProxy.cpp
deleted file mode 100644
index b0d145e..0000000
--- a/WebCore/dom/WorkerMessagingProxy.cpp
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- *
- */
-
-#include "config.h"
-
-#if ENABLE(WORKERS)
-
-#include "WorkerMessagingProxy.h"
-
-#include "DOMWindow.h"
-#include "Document.h"
-#include "MessageEvent.h"
-#include "Worker.h"
-#include "WorkerContext.h"
-#include "WorkerTask.h"
-#include "WorkerThread.h"
-
-namespace WebCore {
-
-class MessageWorkerContextTask : public WorkerTask {
-public:
-    static PassRefPtr<MessageWorkerContextTask> create(const String& message)
-    {
-        return adoptRef(new MessageWorkerContextTask(message));
-    }
-
-private:
-    MessageWorkerContextTask(const String& message)
-        : m_message(message.copy())
-    {
-    }
-
-    virtual void performTask(WorkerContext* context)
-    {
-        RefPtr<Event> evt = MessageEvent::create(m_message, "", "", 0, 0);
-
-        if (context->onmessage()) {
-            evt->setTarget(context);
-            evt->setCurrentTarget(context);
-            context->onmessage()->handleEvent(evt.get(), false);
-        }
-
-        ExceptionCode ec = 0;
-        context->dispatchEvent(evt.release(), ec);
-        ASSERT(!ec);
-
-        context->thread()->messagingProxy()->confirmWorkerThreadMessage(context->hasPendingActivity());
-    }
-
-private:
-    String m_message;
-};
-
-class MessageWorkerTask : public ScriptExecutionContext::Task {
-public:
-    static PassRefPtr<MessageWorkerTask> create(const String& message, WorkerMessagingProxy* messagingProxy)
-    {
-        return adoptRef(new MessageWorkerTask(message, messagingProxy));
-    }
-
-private:
-    MessageWorkerTask(const String& message, WorkerMessagingProxy* messagingProxy)
-        : m_message(message.copy())
-        , m_messagingProxy(messagingProxy)
-    {
-    }
-
-    virtual void performTask(ScriptExecutionContext*)
-    {
-        Worker* workerObject = m_messagingProxy->workerObject();
-        if (!workerObject || m_messagingProxy->askedToTerminate())
-            return;
-
-        RefPtr<Event> evt = MessageEvent::create(m_message, "", "", 0, 0);
-
-        if (workerObject->onmessage()) {
-            evt->setTarget(workerObject);
-            evt->setCurrentTarget(workerObject);
-            workerObject->onmessage()->handleEvent(evt.get(), false);
-        }
-
-        ExceptionCode ec = 0;
-        workerObject->dispatchEvent(evt.release(), ec);
-        ASSERT(!ec);
-    }
-
-private:
-    String m_message;
-    WorkerMessagingProxy* m_messagingProxy;
-};
-
-class WorkerExceptionTask : public ScriptExecutionContext::Task {
-public:
-    static PassRefPtr<WorkerExceptionTask> create(const String& errorMessage, int lineNumber, const String& sourceURL, WorkerMessagingProxy* messagingProxy)
-    {
-        return adoptRef(new WorkerExceptionTask(errorMessage, lineNumber, sourceURL, messagingProxy));
-    }
-
-private:
-    WorkerExceptionTask(const String& errorMessage, int lineNumber, const String& sourceURL, WorkerMessagingProxy* messagingProxy)
-        : m_errorMessage(errorMessage.copy())
-        , m_lineNumber(lineNumber)
-        , m_sourceURL(sourceURL.copy())
-        , m_messagingProxy(messagingProxy)
-    {
-    }
-
-    virtual void performTask(ScriptExecutionContext* context)
-    {
-        if (!m_messagingProxy->askedToTerminate())
-            context->reportException(m_errorMessage, m_lineNumber, m_sourceURL);
-    }
-
-    String m_errorMessage;
-    int m_lineNumber;
-    String m_sourceURL;
-    WorkerMessagingProxy* m_messagingProxy;
-};
-
-class WorkerContextDestroyedTask : public ScriptExecutionContext::Task {
-public:
-    static PassRefPtr<WorkerContextDestroyedTask> create(WorkerMessagingProxy* messagingProxy)
-    {
-        return adoptRef(new WorkerContextDestroyedTask(messagingProxy));
-    }
-
-private:
-    WorkerContextDestroyedTask(WorkerMessagingProxy* messagingProxy)
-        : m_messagingProxy(messagingProxy)
-    {
-    }
-
-    virtual void performTask(ScriptExecutionContext*)
-    {
-        m_messagingProxy->workerContextDestroyedInternal();
-    }
-
-    WorkerMessagingProxy* m_messagingProxy;
-};
-
-class WorkerThreadActivityReportTask : public ScriptExecutionContext::Task {
-public:
-    static PassRefPtr<WorkerThreadActivityReportTask> create(WorkerMessagingProxy* messagingProxy, bool confirmingMessage, bool hasPendingActivity)
-    {
-        return adoptRef(new WorkerThreadActivityReportTask(messagingProxy, confirmingMessage, hasPendingActivity));
-    }
-
-private:
-    WorkerThreadActivityReportTask(WorkerMessagingProxy* messagingProxy, bool confirmingMessage, bool hasPendingActivity)
-        : m_messagingProxy(messagingProxy)
-        , m_confirmingMessage(confirmingMessage)
-        , m_hasPendingActivity(hasPendingActivity)
-    {
-    }
-
-    virtual void performTask(ScriptExecutionContext*)
-    {
-        m_messagingProxy->reportWorkerThreadActivityInternal(m_confirmingMessage, m_hasPendingActivity);
-    }
-
-    WorkerMessagingProxy* m_messagingProxy;
-    bool m_confirmingMessage;
-    bool m_hasPendingActivity;
-};
-
-
-WorkerMessagingProxy::WorkerMessagingProxy(PassRefPtr<ScriptExecutionContext> scriptExecutionContext, Worker* workerObject)
-    : m_scriptExecutionContext(scriptExecutionContext)
-    , m_workerObject(workerObject)
-    , m_unconfirmedMessageCount(0)
-    , m_workerThreadHadPendingActivity(false)
-    , m_askedToTerminate(false)
-{
-    ASSERT(m_workerObject);
-    ASSERT((m_scriptExecutionContext->isDocument() && isMainThread())
-        || (m_scriptExecutionContext->isWorkerContext() && currentThread() == static_cast<WorkerContext*>(m_scriptExecutionContext.get())->thread()->threadID()));
-}
-
-WorkerMessagingProxy::~WorkerMessagingProxy()
-{
-    ASSERT(!m_workerObject);
-    ASSERT((m_scriptExecutionContext->isDocument() && isMainThread())
-        || (m_scriptExecutionContext->isWorkerContext() && currentThread() == static_cast<WorkerContext*>(m_scriptExecutionContext.get())->thread()->threadID()));
-}
-
-void WorkerMessagingProxy::postMessageToWorkerObject(const String& message)
-{
-    m_scriptExecutionContext->postTask(MessageWorkerTask::create(message, this));
-}
-
-void WorkerMessagingProxy::postMessageToWorkerContext(const String& message)
-{
-    if (m_askedToTerminate)
-        return;
-
-    if (m_workerThread) {
-        ++m_unconfirmedMessageCount;
-        m_workerThread->runLoop().postTask(MessageWorkerContextTask::create(message));
-    } else
-        m_queuedEarlyTasks.append(MessageWorkerContextTask::create(message));
-}
-
-void WorkerMessagingProxy::postTaskToParentContext(PassRefPtr<ScriptExecutionContext::Task> task)
-{
-    m_scriptExecutionContext->postTask(task);
-}
-
-void WorkerMessagingProxy::postWorkerException(const String& errorMessage, int lineNumber, const String& sourceURL)
-{
-    m_scriptExecutionContext->postTask(WorkerExceptionTask::create(errorMessage, lineNumber, sourceURL, this));
-}
-
-void WorkerMessagingProxy::workerThreadCreated(PassRefPtr<WorkerThread> workerThread)
-{
-    m_workerThread = workerThread;
-
-    if (m_askedToTerminate) {
-        // Worker.terminate() could be called from JS before the thread was created.
-        m_workerThread->stop();
-    } else {
-        unsigned taskCount = m_queuedEarlyTasks.size();
-        ASSERT(!m_unconfirmedMessageCount);
-        m_unconfirmedMessageCount = taskCount + 1; // Worker initialization counts as a pending message.
-
-        for (unsigned i = 0; i < taskCount; ++i)
-            m_workerThread->runLoop().postTask(m_queuedEarlyTasks[i]);
-        m_queuedEarlyTasks.clear();
-    }
-}
-
-void WorkerMessagingProxy::workerObjectDestroyed()
-{
-    m_workerObject = 0;
-    if (m_workerThread)
-        terminate();
-    else
-        workerContextDestroyedInternal(); // It never existed, just do our cleanup.
-}
-
-void WorkerMessagingProxy::workerContextDestroyed()
-{
-    m_scriptExecutionContext->postTask(WorkerContextDestroyedTask::create(this));
-    // Will execute workerContextDestroyedInternal() on context's thread.
-}
-
-void WorkerMessagingProxy::workerContextDestroyedInternal()
-{
-    // WorkerContextDestroyedTask is always the last to be performed, so the proxy is not needed for communication
-    // in either side any more. However, the Worker object may still exist, and it assumes that the proxy exists, too.
-    if (!m_workerObject)
-        delete this;
-}
-
-void WorkerMessagingProxy::terminate()
-{
-    if (m_askedToTerminate)
-        return;
-    m_askedToTerminate = true;
-
-    if (m_workerThread)
-        m_workerThread->stop();
-}
-
-void WorkerMessagingProxy::confirmWorkerThreadMessage(bool hasPendingActivity)
-{
-    m_scriptExecutionContext->postTask(WorkerThreadActivityReportTask::create(this, true, hasPendingActivity));
-    // Will execute reportWorkerThreadActivityInternal() on context's thread.
-}
-
-void WorkerMessagingProxy::reportWorkerThreadActivity(bool hasPendingActivity)
-{
-    m_scriptExecutionContext->postTask(WorkerThreadActivityReportTask::create(this, false, hasPendingActivity));
-    // Will execute reportWorkerThreadActivityInternal() on context's thread.
-}
-
-void WorkerMessagingProxy::reportWorkerThreadActivityInternal(bool confirmingMessage, bool hasPendingActivity)
-{
-    if (confirmingMessage && !m_askedToTerminate) {
-        ASSERT(m_unconfirmedMessageCount);
-        --m_unconfirmedMessageCount;
-    }
-
-    m_workerThreadHadPendingActivity = hasPendingActivity;
-}
-
-bool WorkerMessagingProxy::workerThreadHasPendingActivity() const
-{
-    return (m_unconfirmedMessageCount || m_workerThreadHadPendingActivity) && !m_askedToTerminate;
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(WORKERS)