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 = $(el); |
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436 | |
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437 | // don't bother unbinding if there is nothing to unbind |
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438 | if (!b && (full && !pageBlock || !full && !$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 | |
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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 | |
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447 | // bind anchors and inputs for mouse and key events |
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448 | var events = 'mousedown mouseup keydown keypress'; |
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449 | b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler); |
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450 | |
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451 | // former impl... |
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452 | // var $e = $('a,:input'); |
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453 | // b ? $e.bind(events, opts, handler) : $e.unbind(events, handler); |
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454 | }; |
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455 | |
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456 | // event handler to suppress keyboard/mouse events when blocking |
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457 | function handler(e) { |
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458 | // allow tab navigation (conditionally) |
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459 | if (e.keyCode && e.keyCode == 9) { |
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460 | if (pageBlock && e.data.constrainTabKey) { |
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461 | var els = pageBlockEls; |
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462 | var fwd = !e.shiftKey && e.target === els[els.length-1]; |
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463 | var back = e.shiftKey && e.target === els[0]; |
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464 | if (fwd || back) { |
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465 | setTimeout(function(){focus(back)},10); |
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466 | return false; |
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467 | } |
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468 | } |
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469 | } |
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470 | var opts = e.data; |
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471 | // allow events within the message content |
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472 | if ($(e.target).parents('div.' + opts.blockMsgClass).length > 0) |
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473 | return true; |
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474 | |
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475 | // allow events for content that is not being blocked |
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476 | return $(e.target).parents().children().filter('div.blockUI').length == 0; |
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477 | }; |
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478 | |
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479 | function focus(back) { |
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480 | if (!pageBlockEls) |
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481 | return; |
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482 | var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0]; |
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483 | if (e) |
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484 | e.focus(); |
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485 | }; |
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486 | |
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487 | function center(el, x, y) { |
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488 | var p = el.parentNode, s = el.style; |
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489 | var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth'); |
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490 | var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth'); |
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491 | if (x) s.left = l > 0 ? (l+'px') : '0'; |
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492 | if (y) s.top = t > 0 ? (t+'px') : '0'; |
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493 | }; |
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494 | |
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495 | function sz(el, p) { |
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496 | return parseInt($.css(el,p))||0; |
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497 | }; |
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498 | |
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499 | })(jQuery); |
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