Note that NPN_GetURL is typically asynchronous: it returns immediately and only later handles the request, such as displaying the URL or creating the stream for the instance and writing the data. To request a stream and receive notification of the result in all cases, use NPN_GetURLNotify.įor HTTP URLs, Communicator resolves NPN_GetURL as the HTTP server method GET, which requests URL objects. If Communicator cannot locate the URL and retrieve the data, it does not create a stream for the instance in this case, the plug-in receives notification of the result. This is the way that plug-ins provide hyperlinks to other documents or retrieve data from the network. The plug-in uses the NPN_GetURL function to ask Communicator to display data retrieved from a URL in a specified target window or frame, or deliver it to the plug-in instance in a new stream. This section describes the methods and procedure used for getting the URL and displaying the page. To retrieve a URL and display it on a specified target page, use the NPN_GetURL, NPN_GetURLNotify, and NPP_URLNotify functions. Placed before another URL displays a page that JavaScript has updated using document.write.įor more information, see RFC 1738, "Uniform Resource Locators (URL).įor a reference entry that describes each function discussed in this chapter, see " URL Methods" in the API reference. (Wide Area Information Servers) Locates WAIS databases and their documents. (Reference to interactive sessions) Locates an interactive service. (Prospero Directory Service) Locates a resource on a Prospero directory server. (USENET news using nntp access) Locates USENET news groups or individual USENET articles alternate to news. (USENET news) Locates USENET news groups or individual USENET articles. nethelpĭisplays a NetHelp topic in a NetHelp window. (Electronic mail address) Locates the Internet mailing address of an individual or service.
GIGATRIBE URL CODE
javascriptĮxecutes JavaScript code that follows the URL. (Hypertext Transfer Protocol) Locates resources on the Internet. (Gopher protocol) Locates specified items on a Gopher server. (File Transfer Protocol) Locates files and directories on Internet hosts for file download. (Host-specific filenames) Locates files on a specific host computer rather than an Internet resource. Locates browser information or "fun" pages. In addition, Netscape may support URLs not listed on this table.
Table 6.1 summarizes URLs supported by the Netscape browser. Plug-ins can request and receive the data associated with URLs of any type that the browser can handle, including HTTP, FTP, news, mailto, and gopher. Uniform resource locator (URL) protocols provide a means for locating and accessing resources that are available on the Internet and on intranets. This chapter describes retrieving URLs and displaying them on specified target pages, posting data to an HTTP server, uploading files to an FTP server, and sending mail.
0 kommentar(er)
