cef/libcef_dll/ctocpp/handler_ctocpp.cc
Marshall Greenblatt c295931b1e - Move frame-related methods from CefBrowser into a new CefFrame class.
- Add CefBrowser::Get*Frame() methods for retrieving the appropriate CefFrame instance.
- Add a CefFrame attribute to CefHandler callback methods where appropriate.
- Add support for V8 JavaScript extensions and values via CefV8Value and CefV8Handler.  Native C++ and user-defined JavaScript object hierarchies may now be created and accessed using the CEF API.
- Remove the CefHandler and CefVariant classes and related CefBrowser methods that have been obsoleted by the addition of CEF V8 support.
- Add the CefRegisterExtension() function for registering system-wide V8 extensions.
- Add the CefHandler::HandleJSBinding() callback method for attaching V8 values to the global frame JavaScript object.  This method replaces the previous technique of calling CefBrowser::AddJSHandler().
- Add new wrapper template methods for simplifying DLL wrapper implementations.
- Move cef_string* files from libcef_dll to libcef so that projects can link libcef statically without errors.
- Fix crashes when CEF exits due to object constructors being executed on non-UI threads if the application is closed while a page is still loading.
- Update the cefclient project to reflect changes and demonstrate the new APIs.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@26 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2009-05-28 00:31:21 +00:00

334 lines
11 KiB
C++

// Copyright (c) 2009 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.
#include "../precompiled_libcef.h"
#include "cpptoc/browser_cpptoc.h"
#include "cpptoc/frame_cpptoc.h"
#include "cpptoc/request_cpptoc.h"
#include "cpptoc/stream_cpptoc.h"
#include "cpptoc/v8value_cpptoc.h"
#include "ctocpp/handler_ctocpp.h"
#include "transfer_util.h"
CefHandler::RetVal CefHandlerCToCpp::HandleBeforeCreated(
CefRefPtr<CefBrowser> parentBrowser, CefWindowInfo& windowInfo, bool popup,
CefRefPtr<CefHandler>& handler, std::wstring& url)
{
if(CEF_MEMBER_MISSING(struct_, handle_before_created))
return RV_CONTINUE;
cef_browser_t* browserStruct = NULL;
if(parentBrowser.get())
browserStruct = CefBrowserCppToC::Wrap(parentBrowser);
cef_handler_t* handlerStruct = NULL;
if(handler.get())
handlerStruct = CefHandlerCToCpp::Unwrap(handler);
cef_handler_t *origHandlerStruct = handlerStruct;
cef_string_t urlRet = NULL;
if(!url.empty())
urlRet = cef_string_alloc(url.c_str());
cef_retval_t rv = struct_->handle_before_created(struct_,
browserStruct, &windowInfo, popup, &handlerStruct, &urlRet);
if(handlerStruct && handlerStruct != origHandlerStruct) {
// The handler was changed.
if(handlerStruct)
handler = CefHandlerCToCpp::Wrap(handlerStruct);
else
handler = NULL;
}
transfer_string_contents(urlRet, url, true);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleAfterCreated(
CefRefPtr<CefBrowser> browser)
{
if(CEF_MEMBER_MISSING(struct_, handle_after_created))
return RV_CONTINUE;
return struct_->handle_after_created(struct_,
CefBrowserCppToC::Wrap(browser));
}
CefHandler::RetVal CefHandlerCToCpp::HandleAddressChange(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
const std::wstring& url)
{
if(CEF_MEMBER_MISSING(struct_, handle_address_change))
return RV_CONTINUE;
return struct_->handle_address_change(struct_,
CefBrowserCppToC::Wrap(browser), CefFrameCppToC::Wrap(frame),
url.c_str());
}
CefHandler::RetVal CefHandlerCToCpp::HandleTitleChange(
CefRefPtr<CefBrowser> browser, const std::wstring& title)
{
if(CEF_MEMBER_MISSING(struct_, handle_title_change))
return RV_CONTINUE;
return struct_->handle_title_change(struct_, CefBrowserCppToC::Wrap(browser),
title.c_str());
}
CefHandler::RetVal CefHandlerCToCpp::HandleBeforeBrowse(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
CefRefPtr<CefRequest> request, NavType navType, bool isRedirect)
{
if(CEF_MEMBER_MISSING(struct_, handle_before_browse))
return RV_CONTINUE;
return struct_->handle_before_browse(struct_, CefBrowserCppToC::Wrap(browser),
CefFrameCppToC::Wrap(frame), CefRequestCppToC::Wrap(request),
navType, isRedirect);
}
CefHandler::RetVal CefHandlerCToCpp::HandleLoadStart(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame)
{
if(CEF_MEMBER_MISSING(struct_, handle_load_start))
return RV_CONTINUE;
cef_frame_t* frameStruct = NULL;
if(frame.get())
frameStruct = CefFrameCppToC::Wrap(frame);
return struct_->handle_load_start(struct_, CefBrowserCppToC::Wrap(browser),
frameStruct);
}
CefHandler::RetVal CefHandlerCToCpp::HandleLoadEnd(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame)
{
if(CEF_MEMBER_MISSING(struct_, handle_load_end))
return RV_CONTINUE;
cef_frame_t* frameStruct = NULL;
if(frame.get())
frameStruct = CefFrameCppToC::Wrap(frame);
return struct_->handle_load_end(struct_, CefBrowserCppToC::Wrap(browser),
frameStruct);
}
CefHandler::RetVal CefHandlerCToCpp::HandleLoadError(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
ErrorCode errorCode, const std::wstring& failedUrl, std::wstring& errorText)
{
if(CEF_MEMBER_MISSING(struct_, handle_load_error))
return RV_CONTINUE;
cef_string_t errorTextRet = NULL;
if(!errorText.empty())
errorTextRet = cef_string_alloc(errorText.c_str());
cef_retval_t rv = struct_->handle_load_error(struct_,
CefBrowserCppToC::Wrap(browser), CefFrameCppToC::Wrap(frame), errorCode,
failedUrl.c_str(), &errorTextRet);
transfer_string_contents(errorTextRet, errorText, true);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleBeforeResourceLoad(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefRequest> request,
std::wstring& redirectUrl, CefRefPtr<CefStreamReader>& resourceStream,
std::wstring& mimeType, int loadFlags)
{
if(CEF_MEMBER_MISSING(struct_, handle_before_resource_load))
return RV_CONTINUE;
cef_string_t redirectUrlRet = NULL;
cef_string_t mimeTypeRet = NULL;
cef_stream_reader_t* streamRet = NULL;
if(!redirectUrl.empty())
redirectUrlRet = cef_string_alloc(redirectUrl.c_str());
cef_retval_t rv = struct_->handle_before_resource_load(struct_,
CefBrowserCppToC::Wrap(browser), CefRequestCppToC::Wrap(request),
&redirectUrlRet, &streamRet, &mimeTypeRet, loadFlags);
transfer_string_contents(redirectUrlRet, redirectUrl, true);
transfer_string_contents(mimeTypeRet, mimeType, true);
if(streamRet)
resourceStream = CefStreamReaderCppToC::Unwrap(streamRet);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleBeforeMenu(
CefRefPtr<CefBrowser> browser, const MenuInfo& menuInfo)
{
if(CEF_MEMBER_MISSING(struct_, handle_before_menu))
return RV_CONTINUE;
return struct_->handle_before_menu(struct_, CefBrowserCppToC::Wrap(browser),
&menuInfo);
}
CefHandler::RetVal CefHandlerCToCpp::HandleGetMenuLabel(
CefRefPtr<CefBrowser> browser, MenuId menuId, std::wstring& label)
{
if(CEF_MEMBER_MISSING(struct_, handle_get_menu_label))
return RV_CONTINUE;
cef_string_t labelRet = NULL;
if(!label.empty())
labelRet = cef_string_alloc(label.c_str());
cef_retval_t rv = struct_->handle_get_menu_label(struct_,
CefBrowserCppToC::Wrap(browser), menuId, &labelRet);
transfer_string_contents(labelRet, label, true);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleMenuAction(
CefRefPtr<CefBrowser> browser, MenuId menuId)
{
if(CEF_MEMBER_MISSING(struct_, handle_menu_action))
return RV_CONTINUE;
return struct_->handle_menu_action(struct_, CefBrowserCppToC::Wrap(browser),
menuId);
}
CefHandler::RetVal CefHandlerCToCpp::HandlePrintHeaderFooter(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
CefPrintInfo& printInfo, const std::wstring& url, const std::wstring& title,
int currentPage, int maxPages, std::wstring& topLeft,
std::wstring& topCenter, std::wstring& topRight, std::wstring& bottomLeft,
std::wstring& bottomCenter, std::wstring& bottomRight)
{
if(CEF_MEMBER_MISSING(struct_, handle_print_header_footer))
return RV_CONTINUE;
cef_string_t topLeftRet = NULL, topCenterRet = NULL, topRightRet = NULL,
bottomLeftRet = NULL, bottomCenterRet = NULL, bottomRightRet = NULL;
if(!topLeft.empty())
topLeftRet = cef_string_alloc(topLeft.c_str());
if(!topCenter.empty())
topCenterRet = cef_string_alloc(topCenter.c_str());
if(!topRight.empty())
topRightRet = cef_string_alloc(topRight.c_str());
if(!bottomLeft.empty())
bottomLeftRet = cef_string_alloc(bottomLeft.c_str());
if(!bottomCenter.empty())
bottomCenterRet = cef_string_alloc(bottomCenter.c_str());
if(!bottomRight.empty())
bottomRightRet = cef_string_alloc(bottomRight.c_str());
cef_retval_t rv = struct_->handle_print_header_footer(struct_,
CefBrowserCppToC::Wrap(browser), CefFrameCppToC::Wrap(frame),
&printInfo, url.c_str(), title.c_str(), currentPage, maxPages,
&topLeftRet, &topCenterRet, &topRightRet, &bottomLeftRet,
&bottomCenterRet, &bottomRightRet);
transfer_string_contents(topLeftRet, topLeft, true);
transfer_string_contents(topCenterRet, topCenter, true);
transfer_string_contents(topRightRet, topRight, true);
transfer_string_contents(bottomLeftRet, bottomLeft, true);
transfer_string_contents(bottomCenterRet, bottomCenter, true);
transfer_string_contents(bottomRightRet, bottomRight, true);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleJSAlert(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
const std::wstring& message)
{
if(CEF_MEMBER_MISSING(struct_, handle_jsalert))
return RV_CONTINUE;
return struct_->handle_jsalert(struct_, CefBrowserCppToC::Wrap(browser),
CefFrameCppToC::Wrap(frame), message.c_str());
}
CefHandler::RetVal CefHandlerCToCpp::HandleJSConfirm(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
const std::wstring& message, bool& retval)
{
if(CEF_MEMBER_MISSING(struct_, handle_jsconfirm))
return RV_CONTINUE;
int ret = 0;
cef_retval_t rv = struct_->handle_jsconfirm(struct_,
CefBrowserCppToC::Wrap(browser), CefFrameCppToC::Wrap(frame),
message.c_str(), &ret);
retval = (ret ? true : false);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleJSPrompt(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
const std::wstring& message, const std::wstring& defaultValue, bool& retval,
std::wstring& result)
{
if(CEF_MEMBER_MISSING(struct_, handle_jsprompt))
return RV_CONTINUE;
cef_string_t resultRet = NULL;
if(!result.empty())
resultRet = cef_string_alloc(result.c_str());
int ret = 0;
cef_retval_t rv = struct_->handle_jsprompt(struct_,
CefBrowserCppToC::Wrap(browser), CefFrameCppToC::Wrap(frame),
message.c_str(), defaultValue.c_str(), &ret, &resultRet);
retval = (ret ? true : false);
transfer_string_contents(resultRet, result, true);
return rv;
}
CefHandler::RetVal CefHandlerCToCpp::HandleBeforeWindowClose(
CefRefPtr<CefBrowser> browser)
{
if(CEF_MEMBER_MISSING(struct_, handle_before_window_close))
return RV_CONTINUE;
return struct_->handle_before_window_close(struct_,
CefBrowserCppToC::Wrap(browser));
}
CefHandler::RetVal CefHandlerCToCpp::HandleTakeFocus(
CefRefPtr<CefBrowser> browser, bool reverse)
{
if(CEF_MEMBER_MISSING(struct_, handle_take_focus))
return RV_CONTINUE;
return struct_->handle_take_focus(struct_, CefBrowserCppToC::Wrap(browser),
reverse);
}
CefHandler::RetVal CefHandlerCToCpp::HandleJSBinding(
CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
CefRefPtr<CefV8Value> object)
{
if(CEF_MEMBER_MISSING(struct_, handle_jsbinding))
return RV_CONTINUE;
return struct_->handle_jsbinding(struct_, CefBrowserCppToC::Wrap(browser),
CefFrameCppToC::Wrap(frame), CefV8ValueCppToC::Wrap(object));
}
#ifdef _DEBUG
long CefCToCpp<CefHandlerCToCpp, CefHandler, cef_handler_t>::DebugObjCt = 0;
#endif