| /* |
| * Copyright (C) 2011 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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" |
| |
| #include "core/inspector/InspectorWorkerAgent.h" |
| |
| #include "InspectorFrontend.h" |
| #include "core/inspector/InspectorState.h" |
| #include "core/inspector/InstrumentingAgents.h" |
| #include "core/inspector/JSONParser.h" |
| #include "core/platform/JSONValues.h" |
| #include "core/workers/WorkerGlobalScopeProxy.h" |
| #include "weborigin/KURL.h" |
| #include "wtf/PassOwnPtr.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| namespace WorkerAgentState { |
| static const char workerInspectionEnabled[] = "workerInspectionEnabled"; |
| static const char autoconnectToWorkers[] = "autoconnectToWorkers"; |
| }; |
| |
| class InspectorWorkerAgent::WorkerFrontendChannel : public WorkerGlobalScopeProxy::PageInspector { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| explicit WorkerFrontendChannel(InspectorFrontend* frontend, WorkerGlobalScopeProxy* proxy) |
| : m_frontend(frontend) |
| , m_proxy(proxy) |
| , m_id(s_nextId++) |
| , m_connected(false) |
| { |
| } |
| virtual ~WorkerFrontendChannel() |
| { |
| disconnectFromWorkerGlobalScope(); |
| } |
| |
| int id() const { return m_id; } |
| WorkerGlobalScopeProxy* proxy() const { return m_proxy; } |
| |
| void connectToWorkerGlobalScope() |
| { |
| if (m_connected) |
| return; |
| m_connected = true; |
| m_proxy->connectToInspector(this); |
| } |
| |
| void disconnectFromWorkerGlobalScope() |
| { |
| if (!m_connected) |
| return; |
| m_connected = false; |
| m_proxy->disconnectFromInspector(); |
| } |
| |
| private: |
| // WorkerGlobalScopeProxy::PageInspector implementation |
| virtual void dispatchMessageFromWorker(const String& message) |
| { |
| RefPtr<JSONValue> value = parseJSON(message); |
| if (!value) |
| return; |
| RefPtr<JSONObject> messageObject = value->asObject(); |
| if (!messageObject) |
| return; |
| m_frontend->worker()->dispatchMessageFromWorker(m_id, messageObject); |
| } |
| |
| InspectorFrontend* m_frontend; |
| WorkerGlobalScopeProxy* m_proxy; |
| int m_id; |
| bool m_connected; |
| static int s_nextId; |
| }; |
| |
| int InspectorWorkerAgent::WorkerFrontendChannel::s_nextId = 1; |
| |
| PassOwnPtr<InspectorWorkerAgent> InspectorWorkerAgent::create(InstrumentingAgents* instrumentingAgents, InspectorCompositeState* inspectorState) |
| { |
| return adoptPtr(new InspectorWorkerAgent(instrumentingAgents, inspectorState)); |
| } |
| |
| InspectorWorkerAgent::InspectorWorkerAgent(InstrumentingAgents* instrumentingAgents, InspectorCompositeState* inspectorState) |
| : InspectorBaseAgent<InspectorWorkerAgent>("Worker", instrumentingAgents, inspectorState) |
| , m_inspectorFrontend(0) |
| { |
| m_instrumentingAgents->setInspectorWorkerAgent(this); |
| } |
| |
| InspectorWorkerAgent::~InspectorWorkerAgent() |
| { |
| m_instrumentingAgents->setInspectorWorkerAgent(0); |
| } |
| |
| void InspectorWorkerAgent::setFrontend(InspectorFrontend* frontend) |
| { |
| m_inspectorFrontend = frontend; |
| } |
| |
| void InspectorWorkerAgent::restore() |
| { |
| if (m_state->getBoolean(WorkerAgentState::workerInspectionEnabled)) |
| createWorkerFrontendChannelsForExistingWorkers(); |
| } |
| |
| void InspectorWorkerAgent::clearFrontend() |
| { |
| m_state->setBoolean(WorkerAgentState::autoconnectToWorkers, false); |
| disable(0); |
| m_inspectorFrontend = 0; |
| } |
| |
| void InspectorWorkerAgent::enable(ErrorString*) |
| { |
| m_state->setBoolean(WorkerAgentState::workerInspectionEnabled, true); |
| if (!m_inspectorFrontend) |
| return; |
| createWorkerFrontendChannelsForExistingWorkers(); |
| } |
| |
| void InspectorWorkerAgent::disable(ErrorString*) |
| { |
| m_state->setBoolean(WorkerAgentState::workerInspectionEnabled, false); |
| if (!m_inspectorFrontend) |
| return; |
| destroyWorkerFrontendChannels(); |
| } |
| |
| void InspectorWorkerAgent::canInspectWorkers(ErrorString*, bool* result) |
| { |
| *result = true; |
| } |
| |
| void InspectorWorkerAgent::connectToWorker(ErrorString* error, int workerId) |
| { |
| WorkerFrontendChannel* channel = m_idToChannel.get(workerId); |
| if (channel) |
| channel->connectToWorkerGlobalScope(); |
| else |
| *error = "Worker is gone"; |
| } |
| |
| void InspectorWorkerAgent::disconnectFromWorker(ErrorString* error, int workerId) |
| { |
| WorkerFrontendChannel* channel = m_idToChannel.get(workerId); |
| if (channel) |
| channel->disconnectFromWorkerGlobalScope(); |
| else |
| *error = "Worker is gone"; |
| } |
| |
| void InspectorWorkerAgent::sendMessageToWorker(ErrorString* error, int workerId, const RefPtr<JSONObject>& message) |
| { |
| WorkerFrontendChannel* channel = m_idToChannel.get(workerId); |
| if (channel) |
| channel->proxy()->sendMessageToInspector(message->toJSONString()); |
| else |
| *error = "Worker is gone"; |
| } |
| |
| void InspectorWorkerAgent::setAutoconnectToWorkers(ErrorString*, bool value) |
| { |
| m_state->setBoolean(WorkerAgentState::autoconnectToWorkers, value); |
| } |
| |
| bool InspectorWorkerAgent::shouldPauseDedicatedWorkerOnStart() |
| { |
| return m_state->getBoolean(WorkerAgentState::autoconnectToWorkers); |
| } |
| |
| void InspectorWorkerAgent::didStartWorkerGlobalScope(WorkerGlobalScopeProxy* workerGlobalScopeProxy, const KURL& url) |
| { |
| m_dedicatedWorkers.set(workerGlobalScopeProxy, url.string()); |
| if (m_inspectorFrontend && m_state->getBoolean(WorkerAgentState::workerInspectionEnabled)) |
| createWorkerFrontendChannel(workerGlobalScopeProxy, url.string()); |
| } |
| |
| void InspectorWorkerAgent::workerGlobalScopeTerminated(WorkerGlobalScopeProxy* proxy) |
| { |
| m_dedicatedWorkers.remove(proxy); |
| for (WorkerChannels::iterator it = m_idToChannel.begin(); it != m_idToChannel.end(); ++it) { |
| if (proxy == it->value->proxy()) { |
| m_inspectorFrontend->worker()->workerTerminated(it->key); |
| delete it->value; |
| m_idToChannel.remove(it); |
| return; |
| } |
| } |
| } |
| |
| void InspectorWorkerAgent::createWorkerFrontendChannelsForExistingWorkers() |
| { |
| for (DedicatedWorkers::iterator it = m_dedicatedWorkers.begin(); it != m_dedicatedWorkers.end(); ++it) |
| createWorkerFrontendChannel(it->key, it->value); |
| } |
| |
| void InspectorWorkerAgent::destroyWorkerFrontendChannels() |
| { |
| for (WorkerChannels::iterator it = m_idToChannel.begin(); it != m_idToChannel.end(); ++it) { |
| it->value->disconnectFromWorkerGlobalScope(); |
| delete it->value; |
| } |
| m_idToChannel.clear(); |
| } |
| |
| void InspectorWorkerAgent::createWorkerFrontendChannel(WorkerGlobalScopeProxy* workerGlobalScopeProxy, const String& url) |
| { |
| WorkerFrontendChannel* channel = new WorkerFrontendChannel(m_inspectorFrontend, workerGlobalScopeProxy); |
| m_idToChannel.set(channel->id(), channel); |
| |
| ASSERT(m_inspectorFrontend); |
| bool autoconnectToWorkers = m_state->getBoolean(WorkerAgentState::autoconnectToWorkers); |
| if (autoconnectToWorkers) |
| channel->connectToWorkerGlobalScope(); |
| m_inspectorFrontend->worker()->workerCreated(channel->id(), url, autoconnectToWorkers); |
| } |
| |
| } // namespace WebCore |