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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "core/workers/DedicatedWorkerGlobalScope.h"
     33 
     34 #include "bindings/core/v8/ExceptionState.h"
     35 #include "bindings/core/v8/SerializedScriptValue.h"
     36 #include "core/frame/LocalDOMWindow.h"
     37 #include "core/workers/DedicatedWorkerThread.h"
     38 #include "core/workers/WorkerClients.h"
     39 #include "core/workers/WorkerObjectProxy.h"
     40 #include "core/workers/WorkerThreadStartupData.h"
     41 
     42 namespace blink {
     43 
     44 PassRefPtrWillBeRawPtr<DedicatedWorkerGlobalScope> DedicatedWorkerGlobalScope::create(DedicatedWorkerThread* thread, PassOwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData, double timeOrigin)
     45 {
     46     RefPtrWillBeRawPtr<DedicatedWorkerGlobalScope> context = adoptRefWillBeNoop(new DedicatedWorkerGlobalScope(startupData->m_scriptURL, startupData->m_userAgent, thread, timeOrigin, startupData->m_workerClients.release()));
     47     context->applyContentSecurityPolicyFromString(startupData->m_contentSecurityPolicy, startupData->m_contentSecurityPolicyType);
     48     return context.release();
     49 }
     50 
     51 DedicatedWorkerGlobalScope::DedicatedWorkerGlobalScope(const KURL& url, const String& userAgent, DedicatedWorkerThread* thread, double timeOrigin, PassOwnPtrWillBeRawPtr<WorkerClients> workerClients)
     52     : WorkerGlobalScope(url, userAgent, thread, timeOrigin, workerClients)
     53 {
     54 }
     55 
     56 DedicatedWorkerGlobalScope::~DedicatedWorkerGlobalScope()
     57 {
     58 }
     59 
     60 const AtomicString& DedicatedWorkerGlobalScope::interfaceName() const
     61 {
     62     return EventTargetNames::DedicatedWorkerGlobalScope;
     63 }
     64 
     65 void DedicatedWorkerGlobalScope::postMessage(ExecutionContext*, PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, ExceptionState& exceptionState)
     66 {
     67     // Disentangle the port in preparation for sending it to the remote context.
     68     OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(ports, exceptionState);
     69     if (exceptionState.hadException())
     70         return;
     71     thread()->workerObjectProxy().postMessageToWorkerObject(message, channels.release());
     72 }
     73 
     74 void DedicatedWorkerGlobalScope::importScripts(const Vector<String>& urls, ExceptionState& exceptionState)
     75 {
     76     Base::importScripts(urls, exceptionState);
     77     thread()->workerObjectProxy().reportPendingActivity(hasPendingActivity());
     78 }
     79 
     80 DedicatedWorkerThread* DedicatedWorkerGlobalScope::thread() const
     81 {
     82     return static_cast<DedicatedWorkerThread*>(Base::thread());
     83 }
     84 
     85 class UseCounterTask : public ExecutionContextTask {
     86 public:
     87     static PassOwnPtr<UseCounterTask> createCount(UseCounter::Feature feature) { return adoptPtr(new UseCounterTask(feature, false)); }
     88     static PassOwnPtr<UseCounterTask> createDeprecation(UseCounter::Feature feature) { return adoptPtr(new UseCounterTask(feature, true)); }
     89 
     90 private:
     91     UseCounterTask(UseCounter::Feature feature, bool isDeprecation)
     92         : m_feature(feature)
     93         , m_isDeprecation(isDeprecation)
     94     {
     95     }
     96 
     97     virtual void performTask(ExecutionContext* context) OVERRIDE
     98     {
     99         ASSERT(context->isDocument());
    100         if (m_isDeprecation)
    101             UseCounter::countDeprecation(context, m_feature);
    102         else
    103             UseCounter::count(context, m_feature);
    104     }
    105 
    106     UseCounter::Feature m_feature;
    107     bool m_isDeprecation;
    108 };
    109 
    110 void DedicatedWorkerGlobalScope::countFeature(UseCounter::Feature feature) const
    111 {
    112     thread()->workerObjectProxy().postTaskToMainExecutionContext(UseCounterTask::createCount(feature));
    113 }
    114 
    115 void DedicatedWorkerGlobalScope::countDeprecation(UseCounter::Feature feature) const
    116 {
    117     thread()->workerObjectProxy().postTaskToMainExecutionContext(UseCounterTask::createDeprecation(feature));
    118 }
    119 
    120 void DedicatedWorkerGlobalScope::trace(Visitor* visitor)
    121 {
    122     WorkerGlobalScope::trace(visitor);
    123 }
    124 
    125 } // namespace blink
    126