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1 /*!
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2 * jQuery blockUI plugin
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3 * Version 2.39 (23-MAY-2011)
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4 * @requires jQuery v1.2.3 or later
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5 *
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6 * Examples at: http://malsup.com/jquery/block/
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7 * Copyright (c) 2007-2010 M. Alsup
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8 * Dual licensed under the MIT and GPL licenses:
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9 * http://www.opensource.org/licenses/mit-license.php
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10 * http://www.gnu.org/licenses/gpl.html
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11 *
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12 * Thanks to Amir-Hossein Sobhi for some excellent contributions!
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13 */
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14
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15 ;(function($) {
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16
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17 if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
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18 alert('blockUI requires jQuery v1.2.3 or later! You are using v' + $.fn.jquery);
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19 return;
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20 }
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21
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22 $.fn._fadeIn = $.fn.fadeIn;
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23
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24 var noOp = function() {};
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25
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26 // this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle
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27 // retarded userAgent strings on Vista)
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28 var mode = document.documentMode || 0;
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29 var setExpr = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8);
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30 var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent) && !mode;
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31
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32 // global $ methods for blocking/unblocking the entire page
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33 $.blockUI = function(opts) { install(window, opts); };
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34 $.unblockUI = function(opts) { remove(window, opts); };
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35
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36 // convenience method for quick growl-like notifications (http://www.google.com/search?q=growl)
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37 $.growlUI = function(title, message, timeout, onClose) {
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38 var $m = $('<div class="growlUI"></div>');
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39 if (title) $m.append('<h1>'+title+'</h1>');
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40 if (message) $m.append('<h2>'+message+'</h2>');
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41 if (timeout == undefined) timeout = 3000;
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42 $.blockUI({
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43 message: $m, fadeIn: 700, fadeOut: 1000, centerY: false,
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44 timeout: timeout, showOverlay: false,
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45 onUnblock: onClose,
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46 css: $.blockUI.defaults.growlCSS
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47 });
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48 };
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49
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50 // plugin method for blocking element content
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51 $.fn.block = function(opts) {
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52 return this.unblock({ fadeOut: 0 }).each(function() {
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53 if ($.css(this,'position') == 'static')
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54 this.style.position = 'relative';
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55 if ($.browser.msie)
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56 this.style.zoom = 1; // force 'hasLayout'
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57 install(this, opts);
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58 });
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59 };
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60
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61 // plugin method for unblocking element content
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62 $.fn.unblock = function(opts) {
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63 return this.each(function() {
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64 remove(this, opts);
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65 });
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66 };
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67
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68 $.blockUI.version = 2.39; // 2nd generation blocking at no extra cost!
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69
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70 // override these in your code to change the default behavior and style
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71 $.blockUI.defaults = {
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72 // message displayed when blocking (use null for no message)
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73 message: '<h1>Please wait...</h1>',
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74
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75 title: null, // title string; only used when theme == true
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76 draggable: true, // only used when theme == true (requires jquery-ui.js to be loaded)
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77
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78 theme: false, // set to true to use with jQuery UI themes
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79
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80 // styles for the message when blocking; if you wish to disable
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81 // these and use an external stylesheet then do this in your code:
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82 // $.blockUI.defaults.css = {};
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83 css: {
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84 padding: 0,
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85 margin: 0,
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86 width: '30%',
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87 top: '40%',
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88 left: '35%',
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89 textAlign: 'center',
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90 color: '#000',
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91 border: '3px solid #aaa',
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92 backgroundColor:'#fff',
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93 cursor: 'wait'
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94 },
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95
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96 // minimal style set used when themes are used
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97 themedCSS: {
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98 width: '30%',
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99 top: '40%',
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100 left: '35%'
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101 },
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102
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103 // styles for the overlay
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104 overlayCSS: {
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105 backgroundColor: '#000',
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106 opacity: 0.6,
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107 cursor: 'wait'
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108 },
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109
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110 // styles applied when using $.growlUI
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111 growlCSS: {
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112 width: '350px',
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113 top: '10px',
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114 left: '',
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115 right: '10px',
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116 border: 'none',
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117 padding: '5px',
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118 opacity: 0.6,
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119 cursor: 'default',
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120 color: '#fff',
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121 backgroundColor: '#000',
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122 '-webkit-border-radius': '10px',
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123 '-moz-border-radius': '10px',
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124 'border-radius': '10px'
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125 },
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126
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127 // IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
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128 // (hat tip to Jorge H. N. de Vasconcelos)
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129 iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',
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130
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131 // force usage of iframe in non-IE browsers (handy for blocking applets)
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132 forceIframe: false,
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133
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134 // z-index for the blocking overlay
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135 baseZ: 1000,
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136
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137 // set these to true to have the message automatically centered
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138 centerX: true, // <-- only effects element blocking (page block controlled via css above)
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139 centerY: true,
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140
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141 // allow body element to be stetched in ie6; this makes blocking look better
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142 // on "short" pages. disable if you wish to prevent changes to the body height
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143 allowBodyStretch: true,
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144
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145 // enable if you want key and mouse events to be disabled for content that is blocked
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146 bindEvents: true,
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147
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148 // be default blockUI will supress tab navigation from leaving blocking content
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149 // (if bindEvents is true)
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150 constrainTabKey: true,
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151
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152 // fadeIn time in millis; set to 0 to disable fadeIn on block
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153 fadeIn: 200,
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154
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155 // fadeOut time in millis; set to 0 to disable fadeOut on unblock
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156 fadeOut: 400,
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157
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158 // time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
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159 timeout: 0,
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160
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161 // disable if you don't want to show the overlay
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162 showOverlay: true,
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163
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164 // if true, focus will be placed in the first available input field when
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165 // page blocking
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166 focusInput: true,
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167
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168 // suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
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169 applyPlatformOpacityRules: true,
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170
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171 // callback method invoked when fadeIn has completed and blocking message is visible
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172 onBlock: null,
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173
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174 // callback method invoked when unblocking has completed; the callback is
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175 // passed the element that has been unblocked (which is the window object for page
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176 // blocks) and the options that were passed to the unblock call:
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177 // onUnblock(element, options)
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178 onUnblock: null,
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179
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180 // don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
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181 quirksmodeOffsetHack: 4,
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182
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183 // class name of the message block
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184 blockMsgClass: 'blockMsg'
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185 };
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186
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187 // private data and functions follow...
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188
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189 var pageBlock = null;
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190 var pageBlockEls = [];
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191
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192 function install(el, opts) {
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193 var full = (el == window);
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194 var msg = opts && opts.message !== undefined ? opts.message : undefined;
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195 opts = $.extend({}, $.blockUI.defaults, opts || {});
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196 opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
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197 var css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
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198 var themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {});
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199 msg = msg === undefined ? opts.message : msg;
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200
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201 // remove the current block (if there is one)
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202 if (full && pageBlock)
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203 remove(window, {fadeOut:0});
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204
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205 // if an existing element is being used as the blocking content then we capture
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206 // its current place in the DOM (and current display style) so we can restore
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207 // it when we unblock
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208 if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
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209 var node = msg.jquery ? msg[0] : msg;
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210 var data = {};
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211 $(el).data('blockUI.history', data);
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212 data.el = node;
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213 data.parent = node.parentNode;
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214 data.display = node.style.display;
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215 data.position = node.style.position;
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216 if (data.parent)
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217 data.parent.removeChild(node);
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218 }
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219
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220 $(el).data('blockUI.onUnblock', opts.onUnblock);
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221 var z = opts.baseZ;
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222
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223 // blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
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224 // layer1 is the iframe layer which is used to supress bleed through of underlying content
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225 // layer2 is the overlay layer which has opacity and a wait cursor (by default)
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226 // layer3 is the message content that is displayed while blocking
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227
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228 var lyr1 = ($.browser.msie || opts.forceIframe)
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229 ? $('<iframe class="blockUI" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="'+opts.iframeSrc+'"></iframe>')
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230 : $('<div class="blockUI" style="display:none"></div>');
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231
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232 var lyr2 = opts.theme
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233 ? $('<div class="blockUI blockOverlay ui-widget-overlay" style="z-index:'+ (z++) +';display:none"></div>')
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234 : $('<div class="blockUI blockOverlay" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
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235
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236 var lyr3, s;
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237 if (opts.theme && full) {
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238 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:fixed">' +
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239 '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || ' ')+'</div>' +
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240 '<div class="ui-widget-content ui-dialog-content"></div>' +
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241 '</div>';
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242 }
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243 else if (opts.theme) {
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244 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:absolute">' +
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245 '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || ' ')+'</div>' +
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246 '<div class="ui-widget-content ui-dialog-content"></div>' +
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247 '</div>';
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248 }
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249 else if (full) {
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250 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage" style="z-index:'+(z+10)+';display:none;position:fixed"></div>';
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251 }
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252 else {
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253 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement" style="z-index:'+(z+10)+';display:none;position:absolute"></div>';
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254 }
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255 lyr3 = $(s);
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256
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257 // if we have a message, style it
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258 if (msg) {
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259 if (opts.theme) {
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260 lyr3.css(themedCSS);
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261 lyr3.addClass('ui-widget-content');
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262 }
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263 else
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264 lyr3.css(css);
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265 }
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266
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267 // style the overlay
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268 if (!opts.theme && (!opts.applyPlatformOpacityRules || !($.browser.mozilla && /Linux/.test(navigator.platform))))
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269 lyr2.css(opts.overlayCSS);
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270 lyr2.css('position', full ? 'fixed' : 'absolute');
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271
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272 // make iframe layer transparent in IE
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273 if ($.browser.msie || opts.forceIframe)
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274 lyr1.css('opacity',0.0);
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275
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276 //$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
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277 var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el);
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278 $.each(layers, function() {
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279 this.appendTo($par);
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280 });
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281
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282 if (opts.theme && opts.draggable && $.fn.draggable) {
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283 lyr3.draggable({
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284 handle: '.ui-dialog-titlebar',
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285 cancel: 'li'
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286 });
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287 }
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288
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289 // ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
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290 var expr = setExpr && (!$.boxModel || $('object,embed', full ? null : el).length > 0);
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291 if (ie6 || expr) {
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292 // give body 100% height
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293 if (full && opts.allowBodyStretch && $.boxModel)
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294 $('html,body').css('height','100%');
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295
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296 // fix ie6 issue when blocked element has a border width
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297 if ((ie6 || !$.boxModel) && !full) {
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298 var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
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299 var fixT = t ? '(0 - '+t+')' : 0;
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300 var fixL = l ? '(0 - '+l+')' : 0;
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301 }
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302
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303 // simulate fixed position
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304 $.each([lyr1,lyr2,lyr3], function(i,o) {
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305 var s = o[0].style;
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306 s.position = 'absolute';
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307 if (i < 2) {
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308 full ? s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.boxModel?0:'+opts.quirksmodeOffsetHack+') + "px"')
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309 : s.setExpression('height','this.parentNode.offsetHeight + "px"');
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310 full ? s.setExpression('width','jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"')
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311 : s.setExpression('width','this.parentNode.offsetWidth + "px"');
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312 if (fixL) s.setExpression('left', fixL);
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313 if (fixT) s.setExpression('top', fixT);
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314 }
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315 else if (opts.centerY) {
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316 if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
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317 s.marginTop = 0;
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318 }
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319 else if (!opts.centerY && full) {
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320 var top = (opts.css && opts.css.top) ? parseInt(opts.css.top) : 0;
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321 var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"';
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322 s.setExpression('top',expression);
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323 }
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324 });
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325 }
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326
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327 // show the message
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328 if (msg) {
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329 if (opts.theme)
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330 lyr3.find('.ui-widget-content').append(msg);
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331 else
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332 lyr3.append(msg);
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333 if (msg.jquery || msg.nodeType)
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334 $(msg).show();
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335 }
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336
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337 if (($.browser.msie || opts.forceIframe) && opts.showOverlay)
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338 lyr1.show(); // opacity is zero
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339 if (opts.fadeIn) {
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340 var cb = opts.onBlock ? opts.onBlock : noOp;
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341 var cb1 = (opts.showOverlay && !msg) ? cb : noOp;
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342 var cb2 = msg ? cb : noOp;
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343 if (opts.showOverlay)
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344 lyr2._fadeIn(opts.fadeIn, cb1);
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345 if (msg)
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346 lyr3._fadeIn(opts.fadeIn, cb2);
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347 }
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348 else {
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349 if (opts.showOverlay)
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350 lyr2.show();
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351 if (msg)
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352 lyr3.show();
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353 if (opts.onBlock)
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354 opts.onBlock();
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355 }
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356
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357 // bind key and mouse events
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358 bind(1, el, opts);
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359
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360 if (full) {
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361 pageBlock = lyr3[0];
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362 pageBlockEls = $(':input:enabled:visible',pageBlock);
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363 if (opts.focusInput)
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364 setTimeout(focus, 20);
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365 }
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366 else
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367 center(lyr3[0], opts.centerX, opts.centerY);
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368
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369 if (opts.timeout) {
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370 // auto-unblock
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371 var to = setTimeout(function() {
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372 full ? $.unblockUI(opts) : $(el).unblock(opts);
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373 }, opts.timeout);
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374 $(el).data('blockUI.timeout', to);
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375 }
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376 };
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377
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378 // remove the block
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379 function remove(el, opts) {
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380 var full = (el == window);
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381 var $el = $(el);
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382 var data = $el.data('blockUI.history');
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383 var to = $el.data('blockUI.timeout');
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384 if (to) {
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385 clearTimeout(to);
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386 $el.removeData('blockUI.timeout');
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387 }
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388 opts = $.extend({}, $.blockUI.defaults, opts || {});
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389 bind(0, el, opts); // unbind events
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390
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391 if (opts.onUnblock === null) {
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392 opts.onUnblock = $el.data('blockUI.onUnblock');
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393 $el.removeData('blockUI.onUnblock');
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394 }
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395
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396 var els;
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397 if (full) // crazy selector to handle odd field errors in ie6/7
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398 els = $('body').children().filter('.blockUI').add('body > .blockUI');
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399 else
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400 els = $('.blockUI', el);
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401
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402 if (full)
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403 pageBlock = pageBlockEls = null;
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404
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405 if (opts.fadeOut) {
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406 els.fadeOut(opts.fadeOut);
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407 setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut);
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408 }
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409 else
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410 reset(els, data, opts, el);
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411 };
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412
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413 // move blocking element back into the DOM where it started
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414 function reset(els,data,opts,el) {
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415 els.each(function(i,o) {
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416 // remove via DOM calls so we don't lose event handlers
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417 if (this.parentNode)
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418 this.parentNode.removeChild(this);
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419 });
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420
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421 if (data && data.el) {
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422 data.el.style.display = data.display;
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423 data.el.style.position = data.position;
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424 if (data.parent)
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425 data.parent.appendChild(data.el);
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426 $(el).removeData('blockUI.history');
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427 }
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428
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429 if (typeof opts.onUnblock == 'function')
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430 opts.onUnblock(el,opts);
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431 };
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432
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433 // bind/unbind the handler
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434 function bind(b, el, opts) {
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435 var full = el == window, $el = $(el);
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436
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437 // don't bother unbinding if there is nothing to unbind
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|
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438 if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
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439 return;
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440 if (!full)
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441 $el.data('blockUI.isBlocked', b);
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442
|
|
|
443 // don't bind events when overlay is not in use or if bindEvents is false
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|
|
444 if (!opts.bindEvents || (b && !opts.showOverlay))
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445 return;
|
|
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446
|
|
|
447 // bind anchors and inputs for mouse and key events
|
|
|
448 var events = 'mousedown mouseup keydown keypress';
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|
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449 b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler);
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450
|
|
|
451 // former impl...
|
|
|
452 // var $e = $('a,:input');
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|
|
453 // b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
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454 };
|
|
|
455
|
|
|
456 // event handler to suppress keyboard/mouse events when blocking
|
|
|
457 function handler(e) {
|
|
|
458 // allow tab navigation (conditionally)
|
|
|
459 if (e.keyCode && e.keyCode == 9) {
|
|
|
460 if (pageBlock && e.data.constrainTabKey) {
|
|
|
461 var els = pageBlockEls;
|
|
|
462 var fwd = !e.shiftKey && e.target === els[els.length-1];
|
|
|
463 var back = e.shiftKey && e.target === els[0];
|
|
|
464 if (fwd || back) {
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|
|
465 setTimeout(function(){focus(back)},10);
|
|
|
466 return false;
|
|
|
467 }
|
|
|
468 }
|
|
|
469 }
|
|
|
470 var opts = e.data;
|
|
|
471 // allow events within the message content
|
|
|
472 if ($(e.target).parents('div.' + opts.blockMsgClass).length > 0)
|
|
|
473 return true;
|
|
|
474
|
|
|
475 // allow events for content that is not being blocked
|
|
|
476 return $(e.target).parents().children().filter('div.blockUI').length == 0;
|
|
|
477 };
|
|
|
478
|
|
|
479 function focus(back) {
|
|
|
480 if (!pageBlockEls)
|
|
|
481 return;
|
|
|
482 var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
|
|
|
483 if (e)
|
|
|
484 e.focus();
|
|
|
485 };
|
|
|
486
|
|
|
487 function center(el, x, y) {
|
|
|
488 var p = el.parentNode, s = el.style;
|
|
|
489 var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
|
|
|
490 var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
|
|
|
491 if (x) s.left = l > 0 ? (l+'px') : '0';
|
|
|
492 if (y) s.top = t > 0 ? (t+'px') : '0';
|
|
|
493 };
|
|
|
494
|
|
|
495 function sz(el, p) {
|
|
|
496 return parseInt($.css(el,p))||0;
|
|
|
497 };
|
|
|
498
|
|
|
499 })(jQuery);
|
