skins/ajax_scripts/root_handlers.js

   1 // © Benoît PIN 2006-2013
   2 // http://plinn.org
   3 // Licence GPL
   4 //
   5 //
   6
   7 /* Ajax for everything : if an click event has not been intercepted before */
   8
   9 var AjaxLinkHandler;
  10
  11 (function(){
  12
  13 var reProtocol = /^\s*[a-z]+:/;
  14
  15 AjaxLinkHandler = function() {
  16         var self = this;
  17         addListener(document.body, 'click', function(evt){self.handleClick(evt);});
  18     addListener(window, 'popstate', function(evt){self.handlePopState(evt);});
  19 };
  20
  21 AjaxLinkHandler.prototype.handleClick = function(evt){
  22         var target = getTargetedObject(evt);
  23         while (target.nodeName != 'A') {
  24                 target = target.parentNode;
  25                 if (target == document.body)
  26                         return;
  27         }
  28         target.blur();
  29
  30         if (target.target)
  31                 return;
  32
  33         var url;
  34         var m = reProtocol.exec(target.getAttribute('href', 2));
  35         if (m) {
  36                 var protocol = m[0];
  37                 if (protocol == location.protocol)
  38                         url = target.href;
  39                 else
  40                         return;
  41         }
  42         else
  43                 url = absolute_url() + '/' + target.getAttribute('href', 2);
  44
  45         if (!url) return;
  46
  47     var query = target.search;
  48     if ((query && query.search("noajax=1") != -1) || target.name == 'noajax')
  49         return;
  50
  51     disableDefault(evt);
  52     this.loadUrl(url);
  53 };
  54
  55 AjaxLinkHandler.prototype.handlePopState = function (evt, extra) {
  56     if (evt.state)
  57         this.loadUrl(evt.state, true);
  58 };
  59
  60 AjaxLinkHandler.prototype.loadUrl = function(url, noPush) {
  61     var rawUrl = url;
  62     var ajaxParams='ajax=1&_browserObjectUrl=' + escape(absolute_url());
  63         var urlQueryStart = url.indexOf('?');
  64         if (urlQueryStart != -1)
  65                 url += '&' + ajaxParams;
  66         else
  67                 url += '?' + ajaxParams;
  68
  69         try {
  70                 var fi = new FragmentImporter(url);
  71                 fi.load();
  72         }
  73         catch (e) {
  74                 window.location.href = rawUrl;
  75                 return;
  76         }
  77         if (!noPush)
  78             history.pushState(rawUrl, '', rawUrl)
  79 };
  80
  81 function ajaxSubmitFormHandler(evt) {
  82         var target = getTargetedObject(evt);
  83         if (target.nodeName == 'INPUT' && (target.type == 'submit' || target.type == 'image')) {
  84                 var form = target;
  85                 while (form != document) {
  86                         form = form.parentNode;
  87                         if (form.nodeName == 'FORM') {
  88                                 var fm = new FormManager(form, document.getElementById("mainCell"));
  89                                 fm.submitButton = target;
  90                                 break;
  91                         }
  92                 }
  93         }
  94 }
  95
  96 function _addRootHandlers() {
  97         if ((AJAX_CONFIG & 1) == 1 && history.pushState !== undefined) {
  98                 window.linkHandler = new AjaxLinkHandler(200);
  99         }
 100         if ((AJAX_CONFIG & 2) == 2) {
 101                 addListener(document, 'click', ajaxSubmitFormHandler);
 102         }
 103 }
 104
 105 registerStartupFunction(_addRootHandlers);
 106
 107 })();