webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 147 insertions, 0 deletions

diff --git a/Source/WebCore/workers/WorkerInspectorProxy.cpp b/Source/WebCore/workers/WorkerInspectorProxy.cpp
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+++ b/Source/WebCore/workers/WorkerInspectorProxy.cpp
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+/*
+ * Copyright (C) 2016 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 INC. AND ITS 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 APPLE INC. OR ITS 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 "WorkerInspectorProxy.h"
+
+#include "InspectorInstrumentation.h"
+#include "ScriptExecutionContext.h"
+#include "WorkerGlobalScope.h"
+#include "WorkerInspectorController.h"
+#include "WorkerRunLoop.h"
+#include <inspector/InspectorAgentBase.h>
+#include <wtf/NeverDestroyed.h>
+
+using namespace Inspector;
+
+namespace WebCore {
+
+HashSet<WorkerInspectorProxy*>& WorkerInspectorProxy::allWorkerInspectorProxies()
+{
+    static NeverDestroyed<HashSet<WorkerInspectorProxy*>> proxies;
+    return proxies;
+}
+
+WorkerInspectorProxy::WorkerInspectorProxy(const String& identifier)
+    : m_identifier(identifier)
+{
+}
+
+WorkerInspectorProxy::~WorkerInspectorProxy()
+{
+    ASSERT(!m_workerThread);
+    ASSERT(!m_pageChannel);
+}
+
+WorkerThreadStartMode WorkerInspectorProxy::workerStartMode(ScriptExecutionContext& scriptExecutionContext)
+{
+    bool pauseOnStart = InspectorInstrumentation::shouldWaitForDebuggerOnStart(scriptExecutionContext);
+    return pauseOnStart ? WorkerThreadStartMode::WaitForInspector : WorkerThreadStartMode::Normal;
+}
+
+void WorkerInspectorProxy::workerStarted(ScriptExecutionContext* scriptExecutionContext, WorkerThread* thread, const URL& url)
+{
+    ASSERT(!m_workerThread);
+
+    m_scriptExecutionContext = scriptExecutionContext;
+    m_workerThread = thread;
+    m_url = url;
+
+    allWorkerInspectorProxies().add(this);
+
+    InspectorInstrumentation::workerStarted(*m_scriptExecutionContext.get(), this, m_url);
+}
+
+void WorkerInspectorProxy::workerTerminated()
+{
+    if (!m_workerThread)
+        return;
+
+    InspectorInstrumentation::workerTerminated(*m_scriptExecutionContext.get(), this);
+
+    allWorkerInspectorProxies().remove(this);
+
+    m_scriptExecutionContext = nullptr;
+    m_workerThread = nullptr;
+    m_pageChannel = nullptr;
+}
+
+void WorkerInspectorProxy::resumeWorkerIfPaused()
+{
+    m_workerThread->runLoop().postTaskForMode([] (ScriptExecutionContext& context) {
+        downcast<WorkerGlobalScope>(context).thread().stopRunningDebuggerTasks();
+    }, WorkerRunLoop::debuggerMode());
+}
+
+void WorkerInspectorProxy::connectToWorkerInspectorController(PageChannel* channel)
+{
+    ASSERT(m_workerThread);
+    if (!m_workerThread)
+        return;
+
+    m_pageChannel = channel;
+
+    m_workerThread->runLoop().postTaskForMode([] (ScriptExecutionContext& context) {
+        downcast<WorkerGlobalScope>(context).inspectorController().connectFrontend();
+    }, WorkerRunLoop::debuggerMode());
+}
+
+void WorkerInspectorProxy::disconnectFromWorkerInspectorController()
+{
+    ASSERT(m_workerThread);
+    if (!m_workerThread)
+        return;
+
+    m_pageChannel = nullptr;
+
+    m_workerThread->runLoop().postTaskForMode([] (ScriptExecutionContext& context) {
+        downcast<WorkerGlobalScope>(context).inspectorController().disconnectFrontend(DisconnectReason::InspectorDestroyed);
+
+        // In case the worker is paused running debugger tasks, ensure we break out of
+        // the pause since this will be the last debugger task we send to the worker.
+        downcast<WorkerGlobalScope>(context).thread().stopRunningDebuggerTasks();
+    }, WorkerRunLoop::debuggerMode());
+}
+
+void WorkerInspectorProxy::sendMessageToWorkerInspectorController(const String& message)
+{
+    ASSERT(m_workerThread);
+    if (!m_workerThread)
+        return;
+
+    m_workerThread->runLoop().postTaskForMode([message = message.isolatedCopy()] (ScriptExecutionContext& context) {
+        downcast<WorkerGlobalScope>(context).inspectorController().dispatchMessageFromFrontend(message);
+    }, WorkerRunLoop::debuggerMode());
+}
+
+void WorkerInspectorProxy::sendMessageFromWorkerToFrontend(const String& message)
+{
+    if (!m_pageChannel)
+        return;
+
+    m_pageChannel->sendMessageFromWorkerToFrontend(this, message);
+}
+
+} // namespace WebCore