modules/stylesheet.js

   1 /**
   2  * (C) Copyright 2004-2007 Shawn Betts
   3  * (C) Copyright 2007-2010 John J. Foerch
   4  * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
   5  *
   6  * Use, modification, and distribution are subject to the terms specified in the
   7  * COPYING file.
   8 **/
   9
  10 function register_user_stylesheet (url) {
  11     var uri = make_uri(url);
  12     var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
  13         .getService(Ci.nsIStyleSheetService);
  14     sss.loadAndRegisterSheet(uri, sss.USER_SHEET);
  15 }
  16
  17 function unregister_user_stylesheet (url) {
  18     var uri = make_uri(url);
  19     var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
  20         .getService(Ci.nsIStyleSheetService);
  21     if (sss.sheetRegistered(uri, sss.USER_SHEET))
  22         sss.unregisterSheet(uri, sss.USER_SHEET);
  23 }
  24
  25 function register_agent_stylesheet (url) {
  26     var uri = make_uri(url);
  27     var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
  28         .getService(Ci.nsIStyleSheetService);
  29     sss.loadAndRegisterSheet(uri, sss.AGENT_SHEET);
  30 }
  31
  32 function unregister_agent_stylesheet (url) {
  33     var uri = make_uri(url);
  34     var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
  35         .getService(Ci.nsIStyleSheetService);
  36     if (sss.sheetRegistered(uri, sss.AGENT_SHEET))
  37         sss.unregisterSheet(uri, sss.AGENT_SHEET);
  38 }
  39
  40 function agent_stylesheet_registered_p (url) {
  41     var uri = make_uri(url);
  42     var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
  43         .getService(Ci.nsIStyleSheetService);
  44     return sss.sheetRegistered(uri, sss.AGENT_SHEET);
  45 }
  46
  47 function user_stylesheet_registered_p (url) {
  48     var uri = make_uri(url);
  49     var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
  50         .getService(Ci.nsIStyleSheetService);
  51     return sss.sheetRegistered(uri, sss.USER_SHEET);
  52 }
  53
  54 /**
  55  * make_css_data_uri takes specifications for a css data uri in its
  56  * positional and keyword arguments, and returns a new nsIURI object.
  57  *
  58  * rules: css rules, not including any @namespace or @-moz-document
  59  *        headers.  given as a string or an array of strings.
  60  *
  61  * $namespace: optional string url for a @namespace header.
  62  *
  63  * $domains: optional string, or array of strings, for a @-moz-document
  64  *           domain(...) header.
  65  *
  66  * $urls: optional string, or array of strings, for a @-moz-document
  67  *        url(...) header.
  68  *
  69  * $url_prefixes: optional string, or array of strings, for a
  70  *                @-moz-document url-prefix(...) header.
  71  *
  72  * $regexps: optional string or RegExp, or array of strings or RegExps,
  73  *           for a @-moz-document regexp(...) header.  This header is only
  74  *           available in XULRunner 6 or higher.
  75  */
  76 define_keywords("$namespace", "$domains", "$urls", "$url_prefixes", "$regexps");
  77 function make_css_data_uri (rules) {
  78     keywords(arguments);
  79     var namespace = arguments.$namespace;
  80     var domains = arguments.$domains;
  81     var urls = arguments.$urls;
  82     var url_prefixes = arguments.$url_prefixes;
  83     var regexps = arguments.$regexps;
  84     rules = make_array(rules).join("\n");
  85     var restrictions = Array.prototype.concat(
  86         make_array(domains).map(function (x) "domain("+x+")"),
  87         make_array(urls).map(function (x) "url("+x+")"),
  88         make_array(url_prefixes).map(function (x) "url-prefix("+x+")"),
  89         make_array(regexps).map(function (x) {
  90             return "regexp(\""+
  91                 ((x instanceof RegExp) ? x.source : x)+
  92                 "\")";
  93         }))
  94         .join(",\n");
  95     if (restrictions)
  96         rules = "@-moz-document "+restrictions+" {\n"+rules+"\n}";
  97     if (namespace)
  98         rules = "@namespace url("+namespace+");\n"+rules;
  99     return make_uri("data:text/css,"+escape(rules));
 100 }
 101
 102 provide("stylesheet");