浏览器代码已开源：欢迎收藏 https://github.com/JelinYao/MyChrome
CEF出来很久了，使用的也很广泛的，里面很多地方都是嵌入的CEF浏览器（个人资料、微博、查找……），网上的资料也挺多的，大家可以搜搜看。
首先是下载CEF代码编译，通过里面的那两个例子你也可以依葫芦画瓢的。官方下载地址：http://cefbuilds.com/
这里推荐一个很详细的解说：http://www.cnblogs.com/think/archive/2011/10/06/CEF-Introduce.html
重载CEF的各种“消息”处理类，当你需要自己处理或者自定义这些消息时，才需要重载它们，重载后一定要重写相应的虚函数返回this指针。估计内部是有这些个回调类对象指针，不返回this的话默认就是NULL了，就会执行内部默认的那套机制。
#pragma once #include "include/cef_client.h" #include
#include
using std::wstring; class CCefHandler : public CefClient, public CefDisplayHandler, public CefLifeSpanHandler, public CefLoadHandler, public CefRequestHandler, public CefContextMenuHandler, public CefDownloadHandler { public: CCefHandler(const wstring& strUrl=L""); virtual ~CCefHandler(); //自定义方法 CefRefPtr
GetBrowser() { return m_pBrowser; } CefRefPtr
GetMainFram() { return m_pBrowser.get()?m_pBrowser->GetMainFrame():NULL; } HWND GetBrowserHostWnd() { return m_pBrowser.get()?m_pBrowser->GetHost()->GetWindowHandle():NULL; } void SetHomePage(const wstring& strUrl) { m_strHomePage=strUrl; } const wstring& GetHomePage()const { return m_strHomePage; } wstring GetLoadingUrl(); void Navigate(const wstring& strUrl); void CreateBrowser(HWND hParentWnd, const RECT& rect); bool IsClosing() const { return m_bIsClose; } //凡是继承了的处理功能都在这里返回this指针 virtual CefRefPtr
GetDisplayHandler() { return this; } virtual CefRefPtr
GetLifeSpanHandler() { return this; } virtual CefRefPtr
GetLoadHandler() { return this; } virtual CefRefPtr
GetContextMenuHandler() { return this; } virtual CefRefPtr
GetDownloadHandler() { return this; } // CefDisplayHandler methods: virtual void OnTitleChange(CefRefPtr
browser, const CefString& title); virtual void OnAddressChange(CefRefPtr
browser, CefRefPtr
frame, const CefString& url); virtual bool OnTooltip(CefRefPtr
browser, CefString& text); virtual void OnStatusMessage(CefRefPtr
browser, const CefString& value); // CefLifeSpanHandler methods: virtual bool OnBeforePopup(CefRefPtr
browser, CefRefPtr
frame, \ const CefString& target_url, const CefString& target_frame_name, const CefPopupFeatures& popupFeatures, \ CefWindowInfo& windowInfo, CefRefPtr
& client, CefBrowserSettings& settings, \ bool* no_javascript_access); virtual void OnAfterCreated(CefRefPtr
browser); virtual bool DoClose(CefRefPtr
browser); virtual void OnBeforeClose(CefRefPtr
browser); // CefLoadHandler methods: virtual void OnLoadStart(CefRefPtr
browser, CefRefPtr
frame); virtual void OnLoadEnd(CefRefPtr
browser, CefRefPtr
frame, int httpStatusCode); virtual void OnLoadError(CefRefPtr
browser, CefRefPtr
frame, ErrorCode errorCode, const CefString& errorText, const CefString& failedUrl); // Request that all existing browser windows close. void CloseAllBrowsers(bool force_close); // virtual bool OnBeforeBrowse(CefRefPtr
browser, CefRefPtr
frame, \ CefRefPtr
request, bool is_redirect) { //return true; return false; } virtual bool OnBeforeResourceLoad(CefRefPtr
browser, CefRefPtr
frame, CefRefPtr
request) { return false; } //菜单处理 virtual void OnBeforeContextMenu(CefRefPtr
browser, CefRefPtr
frame, \ CefRefPtr
params, CefRefPtr
model); virtual bool OnContextMenuCommand(CefRefPtr
browser, CefRefPtr
frame, \ CefRefPtr
params, int command_id, EventFlags event_flags); //下载处理 virtual void OnBeforeDownload( CefRefPtr
browser, CefRefPtr
download_item, \ const CefString& suggested_name, CefRefPtr
callback); virtual void OnDownloadUpdated( CefRefPtr
browser, CefRefPtr
download_item, \ CefRefPtr
callback); private: typedef std::list
> BrowserList; BrowserList browser_list_; CefRefPtr
m_pBrowser; bool m_bIsClose; wstring m_strHomePage; static int m_nBrowserCount; // Include the default reference counting implementation. IMPLEMENT_REFCOUNTING(CCefHandler); IMPLEMENT_LOCKING(CCefHandler); };
#include "stdafx.h" #include "CefHandler.h" #include
#include "util.h" #include "../include/cef_app.h" #include "../include/cef_runnable.h" int CCefHandler::m_nBrowserCount = 0; CCefHandler::CCefHandler( const wstring& strUrl/*=L""*/ ) : m_bIsClose(false) , m_strHomePage(strUrl) { } CCefHandler::~CCefHandler() { } void CCefHandler::CloseAllBrowsers(bool force_close) { if (!CefCurrentlyOn(TID_UI)) { // Execute on the UI thread. CefPostTask(TID_UI, NewCefRunnableMethod(this, &CCefHandler::CloseAllBrowsers, force_close)); return; } if (browser_list_.empty()) return; BrowserList::const_iterator it = browser_list_.begin(); for (; it != browser_list_.end(); ++it) (*it)->GetHost()->CloseBrowser(force_close); } wstring CCefHandler::GetLoadingUrl() { CefRefPtr
pMainFram=GetMainFram(); return pMainFram.get()?pMainFram->GetURL():L""; } void CCefHandler::Navigate( const wstring& strUrl ) { CefRefPtr
pMainFram=GetMainFram(); if ( pMainFram.get() ) pMainFram->LoadURL(strUrl.c_str()); } void CCefHandler::CreateBrowser( HWND hParentWnd, const RECT& rect ) { CefWindowInfo info; CefBrowserSettings settings; static wchar_t* pCharset = L"GB2312"; settings.default_encoding.str = pCharset; settings.default_encoding.length = wcslen(pCharset); info.SetAsChild(hParentWnd, rect); CefBrowserHost::CreateBrowser(info, this, m_strHomePage.c_str(), settings, NULL); } // //菜单加载接口 void CCefHandler::OnBeforeContextMenu( CefRefPtr
browser, CefRefPtr
frame, \ CefRefPtr
params, CefRefPtr
model ) { //在这里，我添加了自己想要的菜单 cef_context_menu_type_flags_t flag = params->GetTypeFlags(); if ( flag & CM_TYPEFLAG_PAGE ) {//普通页面的右键消息 model->SetLabel(MENU_ID_BACK, L"后退"); model->SetLabel(MENU_ID_FORWARD, L"前进"); model->SetLabel(MENU_ID_VIEW_SOURCE, L"查看源代码"); model->SetLabel(MENU_ID_PRINT, L"打印"); model->SetLabel(MENU_ID_RELOAD, L"刷新"); model->SetLabel(MENU_ID_RELOAD_NOCACHE, L"强制刷新"); model->SetLabel(MENU_ID_STOPLOAD, L"停止加载"); model->SetLabel(MENU_ID_REDO, L"重复"); } if ( flag & CM_TYPEFLAG_EDITABLE) {//编辑框的右键消息 model->SetLabel(MENU_ID_UNDO, L"撤销"); model->SetLabel(MENU_ID_REDO, L"重做"); model->SetLabel(MENU_ID_CUT, L"剪切"); model->SetLabel(MENU_ID_COPY, L"复制"); model->SetLabel(MENU_ID_PASTE, L"粘贴"); model->SetLabel(MENU_ID_DELETE, L"删除"); model->SetLabel(MENU_ID_SELECT_ALL, L"全选"); } } bool CCefHandler::OnContextMenuCommand( CefRefPtr
browser, CefRefPtr
frame, \ CefRefPtr
params, int command_id, EventFlags event_flags ) { return false; } // //网页加载状态回调接口 void CCefHandler::OnLoadStart( CefRefPtr
browser, CefRefPtr
frame ) { } void CCefHandler::OnLoadEnd( CefRefPtr
browser, CefRefPtr
frame, int httpStatusCode ) { //CefRefPtr
v8 = frame->GetV8Context(); } void CCefHandler::OnLoadError(CefRefPtr
browser, CefRefPtr
frame, \ ErrorCode errorCode, const CefString& errorText, const CefString& failedUrl) { REQUIRE_UI_THREAD(); // Don't display an error for downloaded files. if (errorCode == ERR_ABORTED) return; // Display a load error message. std::wstringstream ss; //std::wstring ss << L" " L"
Failed to load URL " << std::wstring(failedUrl) << L" with error " << std::wstring(errorText) << L" (" << errorCode << L").
"<<'\0'; frame->LoadString(ss.str(), failedUrl); } // //状态改变回调接口 void CCefHandler::OnTitleChange( CefRefPtr
browser, const CefString& title ) { } void CCefHandler::OnAddressChange( CefRefPtr
browser, CefRefPtr
frame, const CefString& url ) { } bool CCefHandler::OnTooltip( CefRefPtr
browser, CefString& text ) { return false; } void CCefHandler::OnStatusMessage( CefRefPtr
browser, const CefString& value ) { } // //网页生命周期回调接口 bool CCefHandler::OnBeforePopup( CefRefPtr
browser, CefRefPtr
frame, \ const CefString& target_url, const CefString& target_frame_name, const CefPopupFeatures& popupFeatures, \ CefWindowInfo& windowInfo, CefRefPtr
& client, CefBrowserSettings& settings, \ bool* no_javascript_access ) { //这里使用默认浏览器打开网页，避免CEF重新创建窗口 ShellExecute(NULL, L"open", target_url.c_str(), NULL, NULL, SW_SHOW); //return false;//创建新窗口 return true; //禁止创建新的窗口 } void CCefHandler::OnAfterCreated(CefRefPtr
browser) { REQUIRE_UI_THREAD(); // Add to the list of existing browsers. browser_list_.push_back(browser); AutoLock scopLock(this); if ( ! m_pBrowser.get() ) m_pBrowser=browser; m_nBrowserCount++; } bool CCefHandler::DoClose(CefRefPtr
browser) { REQUIRE_UI_THREAD(); // Closing the main window requires special handling. See the DoClose() // documentation in the CEF header for a detailed destription of this // process. if (browser_list_.size() == 1) { // Set a flag to indicate that the window close should be allowed. m_bIsClose = true; } // Allow the close. For windowed browsers this will result in the OS close // event being sent. return false; } void CCefHandler::OnBeforeClose(CefRefPtr
browser) { REQUIRE_UI_THREAD(); // Remove from the list of existing browsers. BrowserList::iterator bit = browser_list_.begin(); for (; bit != browser_list_.end(); ++bit) { if ((*bit)->IsSame(browser)) { browser_list_.erase(bit); break; } } if (browser_list_.empty()) { // All browser windows have closed. Quit the application message loop. CefQuitMessageLoop(); } } void CCefHandler::OnBeforeDownload( CefRefPtr
browser, CefRefPtr
download_item, \ const CefString& suggested_name, CefRefPtr
callback ) { int i=0; } void CCefHandler::OnDownloadUpdated( CefRefPtr
browser, CefRefPtr
download_item, \ CefRefPtr
callback ) { //取消CEF内部下载文件，使用默认浏览器打开链接去下载，下载过程就不需要我们关心了，毕竟不是做浏览器 callback->Cancel(); CefString strUrl = download_item->GetURL(); ShellExecute(NULL, L"open", strUrl.c_str(), NULL, NULL, SW_SHOW); int i = 0; }
使用时，创建一个win32项目，然后修改WinMain函数:
CefRefPtr
g_handler; int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { // TODO: 在此放置代码。 CefMainArgs main_args(hInstance); CefRefPtr
app(new CCefAppEx); int exit_code = CefExecuteProcess(main_args, app.get()); if (exit_code >= 0) { return exit_code; } CefSettings settings; settings.single_process = true; //settings.multi_threaded_message_loop = true; CefInitialize(main_args, settings, app.get()); //if ( strCmd.size() == 0 ) HACCEL hAccelTable; // 初始化全局字符串 LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadString(hInstance, IDC_CEFDEMO, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); // 执行应用程序初始化: if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_CEFDEMO)); CefRunMessageLoop(); CefShutdown(); return 0; }
消息处理主要是创建、销毁CEF对象，窗口大小改变时通知CEF窗口等：
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; switch (message) { case WM_CREATE: {//http://blog.csdn.net/wongson/article/details/ g_handler=new CCefHandler(L"www..com"); RECT rect; ::GetClientRect(hWnd, &rect); g_handler->CreateBrowser(hWnd, rect); break; } case WM_COMMAND: wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); // 分析菜单选择: switch (wmId) { case IDM_EXIT: DestroyWindow(hWnd); break; default: break; } break; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); // TODO: 在此添加任意绘图代码... EndPaint(hWnd, &ps); break; case WM_SIZE: { if ( wParam == SIZE_MINIMIZED || NULL == g_handler || NULL == g_handler->GetBrowserHostWnd() ) break; HWND hBrowserWnd=g_handler->GetBrowserHostWnd(); RECT rect; ::GetClientRect(hWnd, &rect); ::MoveWindow(hBrowserWnd, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, TRUE); break; } case WM_CLOSE: { if ( g_handler.get() && !g_handler->IsClosing() ) { wstring strUrl=g_handler->GetLoadingUrl(); CefRefPtr
pBrowser=g_handler->GetBrowser(); if ( pBrowser.get() ) pBrowser->GetHost()->CloseBrowser(true); } break; } default: break; } return DefWindowProc(hWnd, message, wParam, lParam); }
编译，运行程序，一个简单的网页就出来了，加载速度比IE那垃圾快多了，关键是不用理会兼容性问题了。
最后记得带上CEF的一大堆DLL，这个是必须的，如果网页需要播放视频，需要新建一个plugins文件夹，放入视频播放插件NPSWF32.dll。
需要链接的CEF动态链接库：
#ifdef _DEBUG #pragma comment(lib, "..\\LibCef\\Debug\\libcef") #pragma comment(lib, "..\\LibCef\\Debug\\libcef_dll_wrapper") #else #pragma comment(lib, "..\\LibCef\\Release\\libcef") #pragma comment(lib, "..\\LibCef\\Release\\libcef_dll_wrapper") #endiflibcef使用范例之4399网页小游戏，git源码：https://github.com/JelinYao/4399WebGames
使用libCef+Duilib开发属于自己的浏览器已开源：https://github.com/JelinYao/MyChrome
版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请联系我们举报，一经查实，本站将立刻删除。
发布者：全栈程序员-站长，转载请注明出处：https://javaforall.net/210830.html原文链接：https://javaforall.net
