CEF基于Chromium和Webkit而来,支持PPAPI和NaCI。
CEF3的binary包默认已经支持PPAPI(参考http://magpcss.org/ceforum/viewtopic.php?f=10&t=10509),以cefsimple为例(参考CEF Windows开发环境搭建),可以通过命令行参数来注册PPAPI plugin,通过–url参数传递一个加载对应plugin的html页面。
下面是我测试可用的一个命令行参数
--ppapi-out-of-process --register-pepper-plugins="D:\projects\cef_binary_3.2357.1271.g8e0674e_windows32\Release\stub.dll;application/x-ppapi-stub" --url=file:///d:/projects/cef_binary_3.2357.1271.g8e0674e_windows32/Release/stub.html
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stub.html非常简单,代码如下:
<!DOCTYPE html><html><head> <title>stub</title></head><body><embed id="plugin" type="application/x-ppapi-stub"></body></html>
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其中stub.dll是我编译的PPAPI SDK里的示例,做了些许改动。stub.c代码如下:
// Copyright (c) 2010 The Chromium Authors. All rights reserved.// Use of this source code is governed by a BSD-style license that can be// found in the LICENSE file.// This is the simplest possible C Pepper plugin that does nothing. If you're// using C++, you will want to look at stub.cc which uses the more convenient// C++ wrappers.#include <stddef.h>#include <stdint.h>#include <Windows.h>#include <tchar.h>#include "ppapi/c/pp_errors.h"#include "ppapi/c/pp_module.h"#include "ppapi/c/ppb.h"#include "ppapi/c/ppp.h"#include "ppapi/c/pp_instance.h"#include "ppapi/c/ppp_instance.h"PP_Module g_module_id;PPB_GetInterface g_get_browser_interface = NULL;PP_EXPORT int32_t PPP_InitializeModule(PP_Module module_id, PPB_GetInterface get_browser_interface) { // Save the global module information for later. g_module_id = module_id; g_get_browser_interface = get_browser_interface; OutputDebugString(_T("PPP_InitializeModule was called\r\n")); return PP_OK;}PP_EXPORT void PPP_ShutdownModule() {OutputDebugString(_T("PPP_ShutdownModule was called\r\n"));}PP_EXPORT const void* PPP_GetInterface(const char* interface_name) { // You will normally implement a getter for at least PPP_INSTANCE_INTERFACE // here. return NULL;}
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如你所见,我只是使用OutputDebugString函数输出了调试信息。运行cefsimple,使用DbgView工具可以看到我们输出的信息。
关于PPAPI插件的细节,后面会有一些文章来讲。
相关文章参考:
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