在谷歌瀏覽器中點擊設置，地址欄裏出現的不是普通網址，而是chrome://settings/

這個地址就是谷歌瀏覽器的自定義scheme，cef也提供了自定義協議手段。主要是通過

以下幾步：

1.繼承一個工廠類MySchemeHandlerFactory : public CefSchemeHandlerFactory

需要包含#include "include/cef_scheme.h"

class MySchemeHandlerFactory : public CefSchemeHandlerFactory 
{
public:
    virtual CefRefPtr<CefResourceHandler> Create(CefRefPtr<CefBrowser> browser,
        CefRefPtr
 
<CefFrame> frame,
        const CefString& scheme_name,
        CefRefPtr<CefRequest> request)
        OVERRIDE {
        // Return a new resource handler instance to handle the request.
        return new MyResourceHandler();
    }
private:
    IMPLEMENT_REFCOUNTING(MySchemeHandlerFactory);
};
 

2.繼承一個資源類class MyResourceHandler : public CefResourceHandler

class MyResourceHandler : public CefResourceHandler
{
public:
    MyResourceHandler() {}

    virtual bool ProcessRequest(CefRefPtr<CefRequest> request,
        CefRefPtr<CefCallback> callback)
        OVERRIDE {
        std::
 
string url = request->GetURL();

        //if (strstr(url.c_str(), "handler.html") != NULL)
            data_ = "hello cef";//返回到頁面中的內容
        callback->Continue();//這個一定要有
        return true;//
    }

    virtual void GetResponseHeaders(CefRefPtr<CefResponse> response,
        int64& response_length,
        CefString& redirectUrl) OVERRIDE {        
        response->SetMimeType("text/html");
        response->SetStatus(200);
        response_length = data_.length() ;
    }

    virtual void Cancel() OVERRIDE {
        // Cancel the response...
    }

    virtual bool ReadResponse(void* data_out,
        int bytes_to_read,
        int& bytes_read,
        CefRefPtr<CefCallback> callback)
        OVERRIDE {
        int size =static_cast<int>(data_.length());
        memcpy(data_out, data_.c_str(), size);
        bytes_read = size;
        return true;
    }

private:
    std::string data_;
    IMPLEMENT_REFCOUNTING(MyResourceHandler);
};

3.在初始化cef那幾行代碼後面增加一句

CefRegisterSchemeHandlerFactory("sin", "test", new MySchemeHandlerFactory());

    CefSettings settings;
    CefSettingsTraits::init(&settings);
    settings.multi_threaded_message_loop = true;
    CefRefPtr<SimpleApp> app(new SimpleApp);    
    CefInitialize(main_args, settings, app.get(), sandbox_info);
    //自定義scheme    
    CefRegisterSchemeHandlerFactory("sin", "test", new MySchemeHandlerFactory());

4.我看有的教程裏寫的還要在自定義的CefApp類中修改OnRegisterCustomSchemes函數，增加

registrar->AddCustomScheme("sin", true, false, false, false, true, false);

但是我添加還是不添加都沒有問題，都可以出來。

5.這時，運行程序，在地址欄輸入sin://test之後就會顯示頁面，內容是hello cef

6.在第2步中，如果不註釋if語句if (strstr(url.c_str(), "handler.html") != NULL)

那麽，就需要輸入sin://test/handler.html才能顯示內容hello cef

在cef中使用自定義協議(scheme)