Split host plugin into multiple files.

remoting/host/host_script_object.h

+// Copyright (c) 2011 The Chromium 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 REMOTING_HOST_HOST_SCRIPT_OBJECT_H_
+#define REMOTING_HOST_HOST_SCRIPT_OBJECT_H_
+
+#include <string>
+#include <vector>
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/ref_counted.h"
+#include "base/synchronization/cancellation_flag.h"
+#include "base/synchronization/waitable_event.h"
+#include "base/threading/platform_thread.h"
+#include "remoting/host/chromoting_host_context.h"
+#include "remoting/host/host_status_observer.h"
+#include "third_party/npapi/bindings/npapi.h"
+#include "third_party/npapi/bindings/npfunctions.h"
+#include "third_party/npapi/bindings/npruntime.h"
+
+class Task;
+
+namespace tracked_objects {
+class Location;
+}  // namespace tracked_objects
+
+namespace remoting {
+
+class ChromotingHost;
+class MutableHostConfig;
+class RegisterSupportHostRequest;
+class SignalStrategy;
+class SupportAccessVerifier;
+
+// NPAPI plugin implementation for remoting host script object.
+// HostNPScriptObject creates threads that are required to run
+// ChromotingHost and starts/stops the host on those threads. When
+// destroyed it sychronously shuts down the host and all threads.
+class HostNPScriptObject : public HostStatusObserver {
+ public:
+  HostNPScriptObject(NPP plugin, NPObject* parent);
+  virtual ~HostNPScriptObject();
+
+  bool Init();
+
+  bool HasMethod(const std::string& method_name);
+  bool InvokeDefault(const NPVariant* args,
+                     uint32_t argCount,
+                     NPVariant* result);
+  bool Invoke(const std::string& method_name,
+              const NPVariant* args,
+              uint32_t argCount,
+              NPVariant* result);
+  bool HasProperty(const std::string& property_name);
+  bool GetProperty(const std::string& property_name, NPVariant* result);
+  bool SetProperty(const std::string& property_name, const NPVariant* value);
+  bool RemoveProperty(const std::string& property_name);
+  bool Enumerate(std::vector<std::string>* values);
+
+  // remoting::HostStatusObserver implementation.
+  virtual void OnSignallingConnected(remoting::SignalStrategy* signal_strategy,
+                                     const std::string& full_jid) OVERRIDE;
+  virtual void OnSignallingDisconnected() OVERRIDE;
+  virtual void OnAccessDenied() OVERRIDE;
+  virtual void OnShutdown() OVERRIDE;
+
+ private:
+  enum State {
+    kDisconnected,
+    kRequestedAccessCode,
+    kReceivedAccessCode,
+    kConnected,
+    kAffirmingConnection,
+    kError
+  };
+
+  // Start connection. args are:
+  //   string uid, string auth_token
+  // No result.
+  bool Connect(const NPVariant* args, uint32_t argCount, NPVariant* result);
+
+  // Disconnect. No arguments or result.
+  bool Disconnect(const NPVariant* args, uint32_t argCount, NPVariant* result);
+
+  // Call LogDebugInfo handler if there is one.
+  void LogDebugInfo(const std::string& message);
+
+  // Call OnStateChanged handler if there is one.
+  void OnStateChanged(State state);
+
+  // Callbacks invoked during session setup.
+  void OnReceivedSupportID(remoting::SupportAccessVerifier* access_verifier,
+                           bool success,
+                           const std::string& support_id);
+
+  // Helper functions that run on main thread. Can be called on any
+  // other thread.
+  void ConnectInternal(const std::string& uid,
+                       const std::string& auth_token,
+                       const std::string& auth_service);
+  void DisconnectInternal();
+
+  // Callback for ChromotingHost::Shutdown().
+  void OnShutdownFinished();
+
+  // Call a JavaScript function wrapped as an NPObject.
+  // If result is non-null, the result of the call will be stored in it.
+  // Caller is responsible for releasing result if they ask for it.
+  static bool CallJSFunction(NPObject* func,
+                             const NPVariant* args,
+                             uint32_t argCount,
+                             NPVariant* result);
+
+  // Posts a task on the main NP thread.
+  void PostTaskToNPThread(const tracked_objects::Location& from_here,
+                          Task* task);
+
+  // Utility function for PostTaskToNPThread.
+  static void NPTaskSpringboard(void* task);
+
+  // Set an exception for the current call.
+  void SetException(const std::string& exception_string);
+
+  NPP plugin_;
+  NPObject* parent_;
+  int state_;
+  std::string access_code_;
+  NPObject* log_debug_info_func_;
+  NPObject* on_state_changed_func_;
+  base::PlatformThreadId np_thread_id_;
+
+  scoped_ptr<RegisterSupportHostRequest> register_request_;
+  scoped_refptr<ChromotingHost> host_;
+  scoped_refptr<MutableHostConfig> host_config_;
+  ChromotingHostContext host_context_;
+  int failed_login_attempts_;
+
+  base::WaitableEvent disconnected_event_;
+  base::CancellationFlag destructing_;
+};
+
+}  // namespace remoting
+
+DISABLE_RUNNABLE_METHOD_REFCOUNT(remoting::HostNPScriptObject);
+
+#endif  // REMOTING_HOST_HOST_SCRIPT_OBJECT_H_