X-Git-Url: http://git.osdn.net/view?p=mingw%2Fwebsite.git;a=blobdiff_plain;f=site.js;h=58399d330413ca17d69f618959424b2e4cfd04c6;hp=1a7c3680bd6cc09a16ab386dc3c924d2e1717a83;hb=53358208c967d324855759a32dcf288dbb6830b4;hpb=98be686d2e65698f502c6ab4521bc0535216d7e1 diff --git a/site.js b/site.js index 1a7c368..58399d3 100644 --- a/site.js +++ b/site.js @@ -7,7 +7,7 @@ * $Id$ * * Written by Keith Marshall - * Copyright (C) 2020, MinGW.org Project + * Copyright (C) 2020, 2021, MinGW.OSDN Project * * * Permission is hereby granted, free of charge, to any person obtaining a @@ -37,25 +37,18 @@ function set_content( item, value ) */ var element = document.getElementById( item ); if( element ) element.innerHTML = value; + return element; } -function no_break( text ) -{ /* Helper function to replace all occurrences of ASCII hyphen-minus, - * within "text", by substitution of HTML non-breaking hyphen. +function set_page( title, text ) +{ /* Helper function, for use in overlay page scripts, to update + * the "title" and "subtitle" fields within the page header; note + * that "text" may, and should, use ASCII hyphen-minus where any + * hyphen is to be represented; these will be replaced by HTML + * non-breaking hyphen entities, on header field assignment. */ - return text.replace( /-/g, "‑" ); -} - -function update_page_content_header( tag ) -{ /* Update the "page-title" and "page-subtitle" content-header text, - * by substitution into the "as-page-title" and "as-page-subtitle" - * place-holder elements, respectively. - */ - var element = document.getElementById( "page-".concat( tag )); - if( element ) - { if( tag == "title" ) document.title = element.innerHTML; - set_content( "as-page-".concat( tag ), no_break( element.innerHTML )); - } + if( title == "title" ) document.title = text; + set_content( "page-".concat( title ), text.replace( /-/g, "‑" )); } function load_content( container, src ) @@ -69,10 +62,18 @@ function load_content( container, src ) { if( this.readyState == this.DONE ) switch( this.status ) { case 200: - set_content( container, this.responseText ); - update_page_content_header( "title" ); - update_page_content_header( "subtitle" ); + var element = set_content( container, this.responseText ); + var idx; element = element.getElementsByTagName( "script" ); set_content( "e404-missing-page", document.URL ); + for( idx = 0; idx < element.length; idx++ ) + { var onload_action = Function( element[idx].innerHTML ); + onload_action(); + } + if( src.includes("#") ) + { src = src.substring( src.indexOf("#") + 1, src.length ); + element = document.getElementById( src ); + if( element ) element.scrollIntoView(); + } break; case 404: load_content( container, "missing.html" ); @@ -97,4 +98,78 @@ function load_page( src ) load_content( div, src ); } +/* Web-Search Widget Helper Functions + * ---------------------------------- + * Derived from the DuckDuckGo.com search widget implementation by + * Juri Wornowitski, as described at https://www.plainlight.com/ddg, + * these facilitate incorporation of multiple search widget variants, + * at multiple locations across the site. + * + */ +function ddg_widget( ref ) +{ /* Acquire a reference to the "submit" button, within the search + * widget; the containing "form" element uses this to simulate a + * click event, if the form is submitted by pressing the "enter" + * key, when the "input" field has the focus. + */ + ref = ref.getElementsByTagName( "button" ); + for( idx = 0; idx < ref.length; idx++ ) + if( ref[idx].type == "submit" ) return ref[idx]; + return undefined; +} + +function ddg_google_search_site( domain ) +{ /* Encode a search "domain" as a "site:" reference, to be appended + * to the query URL, when a DuckDuckGo.com search is directed to the + * Google search engine, via DuckDuckGo.com's "bang" facility. + */ + return "+".concat( encodeURIComponent( "site:".concat( domain ))); +} + +function ddg_bang( src, query, domain ) +{ /* Set up a query, using DuckDuckGo.com's "bang" facility, (directed + * to the "bang" identified by "src"); append the query, appropriately + * encoded, and optionally a "domain" URL whence the query results are + * to be retrieved. + */ + const bang = "https://duckduckgo.com?q=".concat( encodeURIComponent( "!" )); + query = bang.concat( src.concat( "+".concat( encodeURIComponent( query )))); + return query.concat( domain ); +} + +function ddg_query( widget ) +{ /* Retrieve the current value entered into the query "input" field; + * (this is identified by having a "name" property value of "q"). + */ + widget = widget.getElementsByTagName( "input" ); + for( idx = 0; idx < widget.length; idx++ ) + if( widget[idx].name == "q" ) return widget[idx].value; + return undefined; +} + +function ddg_google_search( widget, target, domain ) +{ /* Initiate a Google search, from the DuckDuckGo.com search widget; + * (the "widget" reference is initially associated with the "submit" + * button, whence we retrieve the query context via the parent form). + * If "domain" is not null, it is assumed to represent a "site:" URL, + * where the search is to be performed, while boolean value "target" + * indicates whether or not a new browser window is to be opened to + * display the search results. + */ + var query = ddg_query( widget.parentElement ); + if( domain.length > 0 ) domain = ddg_google_search_site( domain ); + if( target ) window.open( ddg_bang( "g", query, domain )); + else ddg_bang( "g", query, domain ); + return false; +} + +function osdn_archive( project, list ) +{ /* Construct a URL to represent the search domain for an OSDN.net + * mailing list archive, for any specified "list", belonging to a + * specified "project". + */ + const template = "https://osdn.net/projects/%P%/lists/archive/"; + return template.replace( "%P%", project ).concat( list ); +} + /* $RCSfile$: end of file */