// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
// OWNER OR 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.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//

#ifndef CEF_INCLUDE_CEF_LOAD_HANDLER_H_
#define CEF_INCLUDE_CEF_LOAD_HANDLER_H_
#pragma once

#include "include/cef_base.h"
#include "include/cef_browser.h"
#include "include/cef_frame.h"

///
// Implement this interface to handle events related to browser load status. The
// methods of this class will be called on the browser process UI thread or
// render process main thread (TID_RENDERER).
///
/*--cef(source=client)--*/
class CefLoadHandler : public virtual CefBaseRefCounted {
 public:
 typedef cef_errorcode_t ErrorCode;
 typedef cef_transition_type_t TransitionType;

 ///
 // Called when the loading state has changed. This callback will be executed
 // twice -- once when loading is initiated either programmatically or by user
 // action, and once when loading is terminated due to completion, cancellation
 // of failure. It will be called before any calls to OnLoadStart and after all
 // calls to OnLoadError and/or OnLoadEnd.
 ///
 /*--cef()--*/
 virtual void OnLoadingStateChange(CefRefPtr<CefBrowser> browser,
 bool isLoading,
 bool canGoBack,
 bool canGoForward) {}

 ///
 // Called after a navigation has been committed and before the browser begins
 // loading contents in the frame. The |frame| value will never be empty --
 // call the IsMain() method to check if this frame is the main frame.
 // |transition_type| provides information about the source of the navigation
 // and an accurate value is only available in the browser process. Multiple
 // frames may be loading at the same time. Sub-frames may start or continue
 // loading after the main frame load has ended. This method will not be called
 // for same page navigations (fragments, history state, etc.) or for
 // navigations that fail or are canceled before commit. For notification of
 // overall browser load status use OnLoadingStateChange instead.
 ///
 /*--cef()--*/
 virtual void OnLoadStart(CefRefPtr<CefBrowser> browser,
 CefRefPtr<CefFrame> frame,
 TransitionType transition_type) {}

 ///
 // Called when the browser is done loading a frame. The |frame| value will
 // never be empty -- call the IsMain() method to check if this frame is the
 // main frame. Multiple frames may be loading at the same time. Sub-frames may
 // start or continue loading after the main frame load has ended. This method
 // will not be called for same page navigations (fragments, history state,
 // etc.) or for navigations that fail or are canceled before commit. For
 // notification of overall browser load status use OnLoadingStateChange
 // instead.
 ///
 /*--cef()--*/
 virtual void OnLoadEnd(CefRefPtr<CefBrowser> browser,
 CefRefPtr<CefFrame> frame,
 int httpStatusCode) {}

 ///
 // Called when a navigation fails or is canceled. This method may be called
 // by itself if before commit or in combination with OnLoadStart/OnLoadEnd if
 // after commit. |errorCode| is the error code number, |errorText| is the
 // error text and |failedUrl| is the URL that failed to load.
 // See net\base\net_error_list.h for complete descriptions of the error codes.
 ///
 /*--cef(optional_param=errorText)--*/
 virtual void OnLoadError(CefRefPtr<CefBrowser> browser,
 CefRefPtr<CefFrame> frame,
 ErrorCode errorCode,
 const CefString& errorText,
 const CefString& failedUrl) {}
};

#endif // CEF_INCLUDE_CEF_LOAD_HANDLER_H_