Source/Request/Request.HTML.js

   1 /*
   2 ---
   3
   4 name: Request.HTML
   5
   6 description: Extends the basic Request Class with additional methods for interacting with HTML responses.
   7
   8 license: MIT-style license.
   9
  10 requires: [Element, Request]
  11
  12 provides: Request.HTML
  13
  14 ...
  15 */
  16
  17 Request.HTML = new Class({
  18
  19         Extends: Request,
  20
  21         options: {
  22                 update: false,
  23                 append: false,
  24                 evalScripts: true,
  25                 filter: false,
  26                 headers: {
  27                         Accept: 'text/html, application/xml, text/xml, */*'
  28                 }
  29         },
  30
  31         success: function(text){
  32                 var options = this.options, response = this.response;
  33
  34                 response.html = text.stripScripts(function(script){
  35                         response.javascript = script;
  36                 });
  37
  38                 var match = response.html.match(/<body[^>]*>([\s\S]*?)<\/body>/i);
  39                 if (match) response.html = match[1];
  40                 var temp = new Element('div').set('html', response.html);
  41
  42                 response.tree = temp.childNodes;
  43                 response.elements = temp.getElements(options.filter || '*');
  44
  45                 if (options.filter) response.tree = response.elements;
  46                 if (options.update){
  47                         var update = document.id(options.update).empty();
  48                         if (options.filter) update.adopt(response.elements);
  49                         else update.set('html', response.html);
  50                 } else if (options.append){
  51                         var append = document.id(options.append);
  52                         if (options.filter) response.elements.reverse().inject(append);
  53                         else append.adopt(temp.getChildren());
  54                 }
  55                 if (options.evalScripts) Browser.exec(response.javascript);
  56
  57                 this.onSuccess(response.tree, response.elements, response.html, response.javascript);
  58         }
  59
  60 });
  61
  62 Element.Properties.load = {
  63
  64         set: function(options){
  65                 var load = this.get('load').cancel();
  66                 load.setOptions(options);
  67                 return this;
  68         },
  69
  70         get: function(){
  71                 var load = this.retrieve('load');
  72                 if (!load){
  73                         load = new Request.HTML({data: this, link: 'cancel', update: this, method: 'get'});
  74                         this.store('load', load);
  75                 }
  76                 return load;
  77         }
  78
  79 };
  80
  81 Element.implement({
  82
  83         load: function(){
  84                 this.get('load').send(Array.link(arguments, {data: Type.isObject, url: Type.isString}));
  85                 return this;
  86         }
  87
  88 });