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      1 /*
      2  * Copyright (C) 2011 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/inspector/WorkerDebuggerAgent.h"
     33 
     34 #include "bindings/core/v8/ScriptDebugServer.h"
     35 #include "core/inspector/WorkerInspectorController.h"
     36 #include "core/workers/WorkerGlobalScope.h"
     37 #include "core/workers/WorkerThread.h"
     38 #include "wtf/MessageQueue.h"
     39 
     40 namespace blink {
     41 
     42 namespace {
     43 
     44 class RunInspectorCommandsTask FINAL : public ScriptDebugServer::Task {
     45 public:
     46     explicit RunInspectorCommandsTask(WorkerThread* thread)
     47         : m_thread(thread) { }
     48     virtual ~RunInspectorCommandsTask() { }
     49     virtual void run() OVERRIDE
     50     {
     51         // Process all queued debugger commands. WorkerThread is certainly
     52         // alive if this task is being executed.
     53         m_thread->willEnterNestedLoop();
     54         while (MessageQueueMessageReceived == m_thread->runDebuggerTask(WorkerThread::DontWaitForMessage)) { }
     55         m_thread->didLeaveNestedLoop();
     56     }
     57 
     58 private:
     59     WorkerThread* m_thread;
     60 };
     61 
     62 } // namespace
     63 
     64 PassOwnPtrWillBeRawPtr<WorkerDebuggerAgent> WorkerDebuggerAgent::create(WorkerScriptDebugServer* scriptDebugServer, WorkerGlobalScope* inspectedWorkerGlobalScope, InjectedScriptManager* injectedScriptManager)
     65 {
     66     return adoptPtrWillBeNoop(new WorkerDebuggerAgent(scriptDebugServer, inspectedWorkerGlobalScope, injectedScriptManager));
     67 }
     68 
     69 WorkerDebuggerAgent::WorkerDebuggerAgent(WorkerScriptDebugServer* scriptDebugServer, WorkerGlobalScope* inspectedWorkerGlobalScope, InjectedScriptManager* injectedScriptManager)
     70     : InspectorDebuggerAgent(injectedScriptManager)
     71     , m_scriptDebugServer(scriptDebugServer)
     72     , m_inspectedWorkerGlobalScope(inspectedWorkerGlobalScope)
     73 {
     74 }
     75 
     76 WorkerDebuggerAgent::~WorkerDebuggerAgent()
     77 {
     78 }
     79 
     80 void WorkerDebuggerAgent::trace(Visitor* visitor)
     81 {
     82     visitor->trace(m_inspectedWorkerGlobalScope);
     83     InspectorDebuggerAgent::trace(visitor);
     84 }
     85 
     86 void WorkerDebuggerAgent::interruptAndDispatchInspectorCommands()
     87 {
     88     scriptDebugServer().interruptAndRunTask(adoptPtr(new RunInspectorCommandsTask(m_inspectedWorkerGlobalScope->thread())));
     89 }
     90 
     91 void WorkerDebuggerAgent::startListeningScriptDebugServer()
     92 {
     93     scriptDebugServer().addListener(this);
     94 }
     95 
     96 void WorkerDebuggerAgent::stopListeningScriptDebugServer()
     97 {
     98     scriptDebugServer().removeListener(this);
     99 }
    100 
    101 WorkerScriptDebugServer& WorkerDebuggerAgent::scriptDebugServer()
    102 {
    103     return *m_scriptDebugServer;
    104 }
    105 
    106 InjectedScript WorkerDebuggerAgent::injectedScriptForEval(ErrorString* error, const int* executionContextId)
    107 {
    108     if (executionContextId) {
    109         *error = "Execution context id is not supported for workers as there is only one execution context.";
    110         return InjectedScript();
    111     }
    112     return injectedScriptManager()->injectedScriptFor(m_inspectedWorkerGlobalScope->script()->scriptState());
    113 }
    114 
    115 void WorkerDebuggerAgent::muteConsole()
    116 {
    117     // We don't need to mute console for workers.
    118 }
    119 
    120 void WorkerDebuggerAgent::unmuteConsole()
    121 {
    122     // We don't need to mute console for workers.
    123 }
    124 
    125 } // namespace blink
    126