Create 2272 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2272@1993 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/context.h

@@ -0,0 +1,115 @@
+// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#ifndef CEF_LIBCEF_BROWSER_CONTEXT_H_
+#define CEF_LIBCEF_BROWSER_CONTEXT_H_
+#pragma once
+
+#include <list>
+#include <map>
+#include <string>
+
+#include "include/cef_app.h"
+
+#include "base/files/file_path.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/threading/platform_thread.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+
+namespace base {
+class WaitableEvent;
+}
+
+namespace content {
+class ContentMainRunner;
+}
+
+namespace printing {
+class PrintJobManager;
+}
+
+class CefBrowserHostImpl;
+class CefMainDelegate;
+class CefTraceSubscriber;
+
+class CefContext : public content::NotificationObserver {
+ public:
+  typedef std::list<CefRefPtr<CefBrowserHostImpl> > BrowserList;
+
+  CefContext();
+  ~CefContext() override;
+
+  // Returns the singleton CefContext instance.
+  static CefContext* Get();
+
+  // These methods will be called on the main application thread.
+  bool Initialize(const CefMainArgs& args,
+                  const CefSettings& settings,
+                  CefRefPtr<CefApp> application,
+                  void* windows_sandbox_info);
+  void Shutdown();
+
+  // Returns true if the current thread is the initialization thread.
+  bool OnInitThread();
+
+  // Returns true if the context is initialized.
+  bool initialized() { return initialized_; }
+
+  // Returns true if the context is shutting down.
+  bool shutting_down() { return shutting_down_; }
+
+  // Retrieve the path at which cache data will be stored on disk.
+  const base::FilePath& cache_path() const { return cache_path_; }
+
+  const CefSettings& settings() const { return settings_; }
+
+  printing::PrintJobManager* print_job_manager() const {
+    return print_job_manager_.get();
+  }
+
+  CefTraceSubscriber* GetTraceSubscriber();
+
+ private:
+  void OnContextInitialized();
+
+  // Performs shutdown actions that need to occur on the UI thread before any
+  // threads are destroyed.
+  void FinishShutdownOnUIThread(base::WaitableEvent* uithread_shutdown_event);
+
+  // Destroys the main runner and related objects.
+  void FinalizeShutdown();
+
+  // NotificationObserver implementation.
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
+
+  // Track context state.
+  bool initialized_;
+  bool shutting_down_;
+
+  // The thread on which the context was initialized.
+  base::PlatformThreadId init_thread_id_;
+
+  CefSettings settings_;
+  base::FilePath cache_path_;
+  base::ScopedTempDir cache_temp_dir_;
+
+  scoped_ptr<CefMainDelegate> main_delegate_;
+  scoped_ptr<content::ContentMainRunner> main_runner_;
+  scoped_ptr<CefTraceSubscriber> trace_subscriber_;
+
+  // Only accessed on the UI Thread.
+  scoped_ptr<content::NotificationRegistrar> registrar_;
+  scoped_ptr<printing::PrintJobManager> print_job_manager_;
+};
+
+// Helper macro that returns true if the global context is in a valid state.
+#define CONTEXT_STATE_VALID() \
+    (CefContext::Get() && CefContext::Get()->initialized() && \
+     !CefContext::Get()->shutting_down())
+
+#endif  // CEF_LIBCEF_BROWSER_CONTEXT_H_