cef3框架以zip格式加载资源

构建windows桌面应用程序，使用cef3框架，其中实现加载本地资源方式为zip压缩包的形式（同样的方式也可以做成动态库形式，或者直接以win32资源加载的形式）。

具体实现如下：

实现自己的provider

class PcmBinaryResourceProvider : public CefResourceManager::Provider {

public:

explicit PcmBinaryResourceProvider(const std::string& url_path)

: url_path_(url_path) {

DCHECK(!url_path.empty());

}

 

bool OnRequest(scoped_refptr<CefResourceManager::Request> request) OVERRIDE

{

CEF_REQUIRE_IO_THREAD();

 

const std::string& url = request->url();

if (url.find(url_path_) != 0L) {

// Not handled by this provider.

return false;

}

 

CefRefPtr<CefResourceHandler> handler;

 

const std::string& relative_path = url.substr(url_path_.length());

if (!relative_path.empty()) {

CefRefPtr<CefStreamReader> stream =

GetBinaryResourceReader(relative_path.data());

if (stream.get()) {

handler = new CefStreamResourceHandler(

request->mime_type_resolver().Run(url),

stream);

}

}

 

request->Continue(handler);

return true;

}

 

private:

std::string url_path_;

 

DISALLOW_COPY_AND_ASSIGN(PcmBinaryResourceProvider);

};

 

 

CefResourceManager::Provider* CreatePcmBinaryResourceProvider(

const std::string& url_path)

{

return new PcmBinaryResourceProvider(url_path);

}

 

最后在test_runner.cc中添加(标红字段)：

void SetupResourceManager(CefRefPtr<CefResourceManager> resource_manager) {

if (!CefCurrentlyOn(TID_IO)) {

// Execute on the browser IO thread.

CefPostTask(TID_IO, base::Bind(SetupResourceManager, resource_manager));

return;

}

 

const std::string& test_origin = kTestOrigin;

 

// Add the URL filter.

resource_manager->SetUrlFilter(base::Bind(RequestUrlFilter));

 

// Add provider for resource dumps.

resource_manager->AddProvider(

new RequestDumpResourceProvider(test_origin + "request.html"), 0,

std::string());

 

// Add provider for bundled resource files.

#if defined(OS_WIN)

// Read resources from the binary.

//resource_manager->AddProvider(

// CreateBinaryResourceProvider(test_origin, std::string()), 100,

// std::string());

 

 

const std::string& pcm_origin = kPcmOrigin;

resource_manager->AddProvider(CreatePcmBinaryResourceProvider(pcm_origin),

100, std::string());

 

#elif defined(OS_POSIX)

// Read resources from a directory on disk.

std::stri