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1 /// <reference path="jquery-1.4.4.js" />
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2
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3 /*!
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4 ** Unobtrusive Ajax support library for jQuery
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5 ** Copyright (C) Microsoft Corporation. All rights reserved.
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6 */
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7
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8 /*jslint white: true, browser: true, onevar: true, undef: true, nomen: true, eqeqeq: true, plusplus: true, bitwise: true, regexp: true, newcap: true, immed: true, strict: false */
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9 /*global window: false, jQuery: false */
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10
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11 (function ($) {
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12 var data_click = "unobtrusiveAjaxClick",
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13 data_validation = "unobtrusiveValidation";
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14
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15 function getFunction(code, argNames) {
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16 var fn = window, parts = (code || "").split(".");
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17 while (fn && parts.length) {
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18 fn = fn[parts.shift()];
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19 }
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20 if (typeof (fn) === "function") {
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21 return fn;
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22 }
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23 argNames.push(code);
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24 return Function.constructor.apply(null, argNames);
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25 }
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26
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27 function isMethodProxySafe(method) {
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28 return method === "GET" || method === "POST";
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29 }
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30
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31 function asyncOnBeforeSend(xhr, method) {
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32 if (!isMethodProxySafe(method)) {
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33 xhr.setRequestHeader("X-HTTP-Method-Override", method);
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34 }
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35 }
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36
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37 function asyncOnSuccess(element, data, contentType) {
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38 var mode;
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39
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40 if (contentType.indexOf("application/x-javascript") !== -1) { // jQuery already executes JavaScript for us
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41 return;
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42 }
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43
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44 mode = (element.getAttribute("data-ajax-mode") || "").toUpperCase();
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45 $(element.getAttribute("data-ajax-update")).each(function (i, update) {
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46 var top;
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47
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48 switch (mode) {
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49 case "BEFORE":
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50 top = update.firstChild;
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51 $("<div />").html(data).contents().each(function () {
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52 update.insertBefore(this, top);
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53 });
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54 break;
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55 case "AFTER":
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56 $("<div />").html(data).contents().each(function () {
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57 update.appendChild(this);
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58 });
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59 break;
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60 default:
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61 $(update).html(data);
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62 break;
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63 }
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64 });
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65 }
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66
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67 function asyncRequest(element, options) {
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68 var confirm, loading, method, duration;
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69
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70 confirm = element.getAttribute("data-ajax-confirm");
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71 if (confirm && !window.confirm(confirm)) {
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72 return;
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73 }
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74
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75 loading = $(element.getAttribute("data-ajax-loading"));
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76 duration = element.getAttribute("data-ajax-loading-duration") || 0;
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77
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78 $.extend(options, {
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79 type: element.getAttribute("data-ajax-method") || undefined,
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80 url: element.getAttribute("data-ajax-url") || undefined,
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81 beforeSend: function (xhr) {
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82 var result;
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83 asyncOnBeforeSend(xhr, method);
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84 result = getFunction(element.getAttribute("data-ajax-begin"), ["xhr"]).apply(this, arguments);
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85 if (result !== false) {
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86 loading.show(duration);
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87 }
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88 return result;
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89 },
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90 complete: function () {
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91 loading.hide(duration);
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92 getFunction(element.getAttribute("data-ajax-complete"), ["xhr", "status"]).apply(this, arguments);
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93 },
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94 success: function (data, status, xhr) {
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95 asyncOnSuccess(element, data, xhr.getResponseHeader("Content-Type") || "text/html");
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96 getFunction(element.getAttribute("data-ajax-success"), ["data", "status", "xhr"]).apply(this, arguments);
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97 },
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98 error: getFunction(element.getAttribute("data-ajax-failure"), ["xhr", "status", "error"])
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99 });
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100
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101 options.data.push({ name: "X-Requested-With", value: "XMLHttpRequest" });
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102
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103 method = options.type.toUpperCase();
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104 if (!isMethodProxySafe(method)) {
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105 options.type = "POST";
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106 options.data.push({ name: "X-HTTP-Method-Override", value: method });
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107 }
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108
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109 $.ajax(options);
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110 }
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111
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112 function validate(form) {
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113 var validationInfo = $(form).data(data_validation);
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114 return !validationInfo || !validationInfo.validate || validationInfo.validate();
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115 }
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116
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117 $("a[data-ajax=true]").live("click", function (evt) {
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118 evt.preventDefault();
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119 asyncRequest(this, {
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120 url: this.href,
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121 type: "GET",
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122 data: []
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123 });
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124 });
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125
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126 $("form[data-ajax=true] input[type=image]").live("click", function (evt) {
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127 var name = evt.target.name,
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128 $target = $(evt.target),
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129 form = $target.parents("form")[0],
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130 offset = $target.offset();
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131
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132 $(form).data(data_click, [
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133 { name: name + ".x", value: Math.round(evt.pageX - offset.left) },
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134 { name: name + ".y", value: Math.round(evt.pageY - offset.top) }
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135 ]);
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136
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137 setTimeout(function () {
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138 $(form).removeData(data_click);
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139 }, 0);
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140 });
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141
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142 $("form[data-ajax=true] :submit").live("click", function (evt) {
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143 var name = evt.target.name,
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144 form = $(evt.target).parents("form")[0];
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145
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146 $(form).data(data_click, name ? [{ name: name, value: evt.target.value }] : []);
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147
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148 setTimeout(function () {
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149 $(form).removeData(data_click);
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150 }, 0);
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151 });
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152
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153 $("form[data-ajax=true]").live("submit", function (evt) {
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154 var clickInfo = $(this).data(data_click) || [];
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155 evt.preventDefault();
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156 if (!validate(this)) {
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157 return;
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158 }
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159 asyncRequest(this, {
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160 url: this.action,
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161 type: this.method || "GET",
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162 data: clickInfo.concat($(this).serializeArray())
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163 });
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164 });
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165 }(jQuery)); |
