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1 /**
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2 * Ajax Queue Plugin
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3 *
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4 * Homepage: http://jquery.com/plugins/project/ajaxqueue
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5 * Documentation: http://docs.jquery.com/AjaxQueue
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6 */
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7
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8 /**
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9
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10 <script>
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11 $(function(){
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12 jQuery.ajaxQueue({
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13 url: "test.php",
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14 success: function(html){ jQuery("ul").append(html); }
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15 });
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16 jQuery.ajaxQueue({
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17 url: "test.php",
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18 success: function(html){ jQuery("ul").append(html); }
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19 });
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20 jQuery.ajaxSync({
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21 url: "test.php",
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22 success: function(html){ jQuery("ul").append("<b>"+html+"</b>"); }
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23 });
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24 jQuery.ajaxSync({
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25 url: "test.php",
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26 success: function(html){ jQuery("ul").append("<b>"+html+"</b>"); }
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27 });
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28 });
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29 </script>
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30 <ul style="position: absolute; top: 5px; right: 5px;"></ul>
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31
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32 */
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33 /*
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34 * Queued Ajax requests.
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35 * A new Ajax request won't be started until the previous queued
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36 * request has finished.
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37 */
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38
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39 /*
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40 * Synced Ajax requests.
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41 * The Ajax request will happen as soon as you call this method, but
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42 * the callbacks (success/error/complete) won't fire until all previous
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43 * synced requests have been completed.
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44 */
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45
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46
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47 (function($) {
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48
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49 var ajax = $.ajax;
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50
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51 var pendingRequests = {};
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52
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53 var synced = [];
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54 var syncedData = [];
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55
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56 $.ajax = function(settings) {
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57 // create settings for compatibility with ajaxSetup
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58 settings = jQuery.extend(settings, jQuery.extend({}, jQuery.ajaxSettings, settings));
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59
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60 var port = settings.port;
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61
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62 switch(settings.mode) {
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63 case "abort":
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64 if ( pendingRequests[port] ) {
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65 pendingRequests[port].abort();
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66 }
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67 return pendingRequests[port] = ajax.apply(this, arguments);
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68 case "queue":
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69 var _old = settings.complete;
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70 settings.complete = function(){
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71 if ( _old )
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72 _old.apply( this, arguments );
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73 jQuery([ajax]).dequeue("ajax" + port );;
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74 };
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75
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76 jQuery([ ajax ]).queue("ajax" + port, function(){
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77 ajax( settings );
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78 });
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79 return;
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80 case "sync":
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81 var pos = synced.length;
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82
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83 synced[ pos ] = {
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84 error: settings.error,
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85 success: settings.success,
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86 complete: settings.complete,
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87 done: false
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88 };
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89
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90 syncedData[ pos ] = {
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91 error: [],
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92 success: [],
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93 complete: []
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94 };
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95
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96 settings.error = function(){ syncedData[ pos ].error = arguments; };
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97 settings.success = function(){ syncedData[ pos ].success = arguments; };
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98 settings.complete = function(){
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99 syncedData[ pos ].complete = arguments;
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100 synced[ pos ].done = true;
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101
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102 if ( pos == 0 || !synced[ pos-1 ] )
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103 for ( var i = pos; i < synced.length && synced[i].done; i++ ) {
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104 if ( synced[i].error ) synced[i].error.apply( jQuery, syncedData[i].error );
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105 if ( synced[i].success ) synced[i].success.apply( jQuery, syncedData[i].success );
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106 if ( synced[i].complete ) synced[i].complete.apply( jQuery, syncedData[i].complete );
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107
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108 synced[i] = null;
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109 syncedData[i] = null;
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110 }
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111 };
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112 }
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113 return ajax.apply(this, arguments);
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114 };
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115
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116 })(jQuery); |
