chrome_frame_delegate.h

// Copyright (c) 2009 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 CHROME_FRAME_CHROME_FRAME_DELEGATE_H_
#define CHROME_FRAME_CHROME_FRAME_DELEGATE_H_

#include "chrome/test/automation/automation_messages.h"
#include "ipc/ipc_message.h"

// A common interface supported by all the browser specific ChromeFrame
// implementations.
class ChromeFrameDelegate {
 public:

  typedef HWND WindowType;

  virtual WindowType GetWindow() const = 0;
  virtual void GetBounds(RECT* bounds) = 0;
  virtual std::string GetDocumentUrl() = 0;
  virtual void OnAutomationServerReady() = 0;
  virtual void OnAutomationServerLaunchFailed(
      AutomationLaunchResult reason, const std::string& server_version) = 0;
  virtual void OnMessageReceived(const IPC::Message& msg) = 0;

  // This remains in interface since we call it if Navigate()
  // returns immediate error.
  virtual void OnLoadFailed(int error_code, const std::string& url) = 0;

  // Returns true if this instance is alive and well for processing automation
  // messages.
  virtual bool IsValid() const = 0;

 protected:
  ~ChromeFrameDelegate() {}
};

// Template specialization
template <> struct RunnableMethodTraits<ChromeFrameDelegate> {
  static void RetainCallee(ChromeFrameDelegate* obj) {
  }

  static void ReleaseCallee(ChromeFrameDelegate* obj) {
  }
};

extern UINT kAutomationServerReady;
extern UINT kMessageFromChromeFrame;

class ChromeFrameDelegateImpl : public ChromeFrameDelegate {
 public:
  virtual WindowType GetWindow() { return NULL; }
  virtual void GetBounds(RECT* bounds) {}
  virtual std::string GetDocumentUrl() { return std::string(); }
  virtual void OnAutomationServerReady() {}
  virtual void OnAutomationServerLaunchFailed(
      AutomationLaunchResult reason, const std::string& server_version) {}
  virtual void OnLoadFailed(int error_code, const std::string& url) {}
  virtual void OnMessageReceived(const IPC::Message& msg);
  static bool IsTabMessage(const IPC::Message& message, int* tab_handle);

  virtual bool IsValid() const {
    return true;
  }

 protected:
  // Protected methods to be overriden.
  virtual void OnNavigationStateChanged(int tab_handle, int flags,
                                        const IPC::NavigationInfo& nav_info) {}
  virtual void OnUpdateTargetUrl(int tab_handle,
                                 const std::wstring& new_target_url) {}
  virtual void OnAcceleratorPressed(int tab_handle, const MSG& accel_message) {}
  virtual void OnTabbedOut(int tab_handle, bool reverse) {}
  virtual void OnOpenURL(int tab_handle, const GURL& url,
                         int open_disposition) {}
  virtual void OnDidNavigate(int tab_handle,
                             const IPC::NavigationInfo& navigation_info) {}
  virtual void OnNavigationFailed(int tab_handle, int error_code,
                                  const GURL& gurl) {}
  virtual void OnLoad(int tab_handle, const GURL& url) {}
  virtual void OnMessageFromChromeFrame(int tab_handle,
                                        const std::string& message,
                                        const std::string& origin,
                                        const std::string& target) {}
  virtual void OnHandleContextMenu(int tab_handle, HANDLE menu_handle,
                                   int x_pos, int y_pos, int align_flags) {}
  virtual void OnRequestStart(int tab_handle, int request_id,
                              const IPC::AutomationURLRequest& request) {}
  virtual void OnRequestRead(int tab_handle, int request_id,
                             int bytes_to_read) {}
  virtual void OnRequestEnd(int tab_handle, int request_id,
                            const URLRequestStatus& status) {}
  virtual void OnSetCookieAsync(int tab_handle, const GURL& url,
                                const std::string& cookie) {}
  virtual void OnAttachExternalTab(int tab_handle, intptr_t cookie,
                                   int disposition) {}
};

#endif  // CHROME_FRAME_CHROME_FRAME_DELEGATE_H_