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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_RENDERER_WORKER_SCRIPT_CONTEXT_SET_H_
#define EXTENSIONS_RENDERER_WORKER_SCRIPT_CONTEXT_SET_H_
#include <memory>
#include <string>
#include "content/public/renderer/worker_thread.h"
#include "extensions/renderer/script_context_set_iterable.h"
#include "url/gurl.h"
#include "v8/include/v8-forward.h"
namespace extensions {
class ScriptContext;
// A set of ScriptContexts owned by worker threads. Thread safe.
// There should only be a single instance of this class, owned by the
// Dispatcher.
class WorkerScriptContextSet : public ScriptContextSetIterable,
public content::WorkerThread::Observer {
public:
WorkerScriptContextSet();
WorkerScriptContextSet(const WorkerScriptContextSet&) = delete;
WorkerScriptContextSet& operator=(const WorkerScriptContextSet&) = delete;
~WorkerScriptContextSet() override;
// Returns the ScriptContext for a Service Worker |v8_context|, or nullptr if
// no such context exists.
ScriptContext* GetContextByV8Context(v8::Local<v8::Context> v8_context);
// ScriptContextSetIterable:
void ForEach(
const mojom::HostID& host_id,
content::RenderFrame* render_frame,
const base::RepeatingCallback<void(ScriptContext*)>& callback) override;
// Runs `callback` with the given `context`.
void ExecuteCallbackWithContext(
ScriptContext* context,
const base::RepeatingCallback<void(ScriptContext*)>& callback);
// Inserts `context` into the set. Contexts are stored in TLS.
void Insert(std::unique_ptr<ScriptContext> context);
// Removes the ScriptContext associated with |v8_context| which was added for
// `url` (used for sanity checking).
void Remove(v8::Local<v8::Context> v8_context, const GURL& url);
private:
// WorkerThread::Observer:
void WillStopCurrentWorkerThread() override;
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_WORKER_SCRIPT_CONTEXT_SET_H_
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