-1
我試圖編寫一個NPAPI插件的hello world示例。我實現了所需的所有基本功能,並添加了一個Get_String()函數,該函數返回hello world字符串。通過Javascript調用的NPAPI函數
建立後,瀏覽器可以檢測到插件和所有相關的信息,但我不能從JavaScript調用我的Get_String()函數! 這裏的一些代碼: plugin.c
#define PLUGIN_NAME "Name Plugin"
#define PLUGIN_DESCRIPTION " Plugin Description"
#define PLUGIN_VERSION "1.0"
static NPNetscapeFuncs* sBrowserFuncs = NULL;
NP_EXPORT(NPError)
NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs)
{
sBrowserFuncs = bFuncs;
if (pFuncs->size < (offsetof(NPPluginFuncs, setvalue) + sizeof(void*)))
return NPERR_INVALID_FUNCTABLE_ERROR;
pFuncs->newp = NPP_New;
pFuncs->destroy = NPP_Destroy;
return NPERR_NO_ERROR;
}
NP_EXPORT(char*)
NP_GetPluginVersion()
{
return PLUGIN_VERSION;
}
NP_EXPORT(const char*)
NP_GetMIMEDescription()
{
return "application/my-plugin::";
}
NP_EXPORT(NPError)
NP_GetValue(void* future, NPPVariable aVariable, void* aValue) {
switch (aVariable) {
case NPPVpluginNameString:
*((char**)aValue) = PLUGIN_NAME;
break;
case NPPVpluginDescriptionString:
*((char**)aValue) = PLUGIN_DESCRIPTION;
break;
default:
return NPERR_INVALID_PARAM;
break;
}
return NPERR_NO_ERROR;
}
NP_EXPORT(NPError)
NP_Shutdown()
{
return NPERR_NO_ERROR;
}
NPError NPP_New(NPMIMEType pluginType, NPP instance, uint16_t mode, int16_t argc, char* argn[], char* argv[], NPSavedData* saved)
{
return NPERR_NO_ERROR;
}
NPError NPP_Destroy(NPP instance, NPSavedData** save)
{
return NPERR_NO_ERROR;
}
char* Get_String()
{
return "hello world from Get function" ;
}
void Set(NPObject object){}
的test.html
<doctype html>
<html>
<head>
<script>
var plugin = document.getElementById("plugin");
console.log(plugin.Get_String());
</script>
</head>
<embed id="plugin" type="application/typemine-plugin">
<body>
</body>
</html>
您是否閱讀過[NPAPI教程](http://colonelpanic.net/2009/03/building-a-firefox-plugin-part-one/)或[documentation](https://developer.mozilla) .ORG/EN-US /文檔/ Gecko_Plugin_API_Reference/Scripting_plugins)?你知道更容易的選項,如[Firebreath](http://www.firebreath.org/)嗎? – 2013-04-04 16:03:47
是的,我看了看它和其他人。但在我的情況下,我不需要它。我想用艱難的方式去做。 – 2013-04-04 16:10:48
那麼,你有沒有閱讀教程和/或文檔?這聽起來像你缺少腳本化方法所需的所有設置,並期望一個普通的C函數只能從JS訪問。 – 2013-04-04 17:35:10