wp-includes/js/thickbox/thickbox.js

   1 /*
   2  * Thickbox 3.1 - One Box To Rule Them All.
   3  * By Cody Lindley (http://www.codylindley.com)
   4  * Copyright (c) 2007 cody lindley
   5  * Licensed under the MIT License: http://www.opensource.org/licenses/mit-license.php
   6 */
   7
   8 if ( typeof tb_pathToImage != 'string' ) {
   9         var tb_pathToImage = thickboxL10n.loadingAnimation;
  10 }
  11
  12 /*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/
  13
  14 //on page load call tb_init
  15 jQuery(document).ready(function(){
  16         tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
  17         imgLoader = new Image();// preload image
  18         imgLoader.src = tb_pathToImage;
  19 });
  20
  21 /*
  22  * Add thickbox to href & area elements that have a class of .thickbox.
  23  * Remove the loading indicator when content in an iframe has loaded.
  24  */
  25 function tb_init(domChunk){
  26         jQuery( 'body' )
  27                 .on( 'click', domChunk, tb_click )
  28                 .on( 'thickbox:iframe:loaded', function() {
  29                         jQuery( '#TB_window' ).removeClass( 'thickbox-loading' );
  30                 });
  31 }
  32
  33 function tb_click(){
  34         var t = this.title || this.name || null;
  35         var a = this.href || this.alt;
  36         var g = this.rel || false;
  37         tb_show(t,a,g);
  38         this.blur();
  39         return false;
  40 }
  41
  42 function tb_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link
  43
  44         var $closeBtn;
  45
  46         try {
  47                 if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
  48                         jQuery("body","html").css({height: "100%", width: "100%"});
  49                         jQuery("html").css("overflow","hidden");
  50                         if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
  51                                 jQuery("body").append("<iframe id='TB_HideSelect'>"+thickboxL10n.noiframes+"</iframe><div id='TB_overlay'></div><div id='TB_window' class='thickbox-loading'></div>");
  52                                 jQuery("#TB_overlay").click(tb_remove);
  53                         }
  54                 }else{//all others
  55                         if(document.getElementById("TB_overlay") === null){
  56                                 jQuery("body").append("<div id='TB_overlay'></div><div id='TB_window' class='thickbox-loading'></div>");
  57                                 jQuery("#TB_overlay").click(tb_remove);
  58                                 jQuery( 'body' ).addClass( 'modal-open' );
  59                         }
  60                 }
  61
  62                 if(tb_detectMacXFF()){
  63                         jQuery("#TB_overlay").addClass("TB_overlayMacFFBGHack");//use png overlay so hide flash
  64                 }else{
  65                         jQuery("#TB_overlay").addClass("TB_overlayBG");//use background and opacity
  66                 }
  67
  68                 if(caption===null){caption="";}
  69                 jQuery("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' width='208' /></div>");//add loader to the page
  70                 jQuery('#TB_load').show();//show loader
  71
  72                 var baseURL;
  73            if(url.indexOf("?")!==-1){ //ff there is a query string involved
  74                         baseURL = url.substr(0, url.indexOf("?"));
  75            }else{
  76                         baseURL = url;
  77            }
  78
  79            var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
  80            var urlType = baseURL.toLowerCase().match(urlString);
  81
  82                 if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
  83
  84                         TB_PrevCaption = "";
  85                         TB_PrevURL = "";
  86                         TB_PrevHTML = "";
  87                         TB_NextCaption = "";
  88                         TB_NextURL = "";
  89                         TB_NextHTML = "";
  90                         TB_imageCount = "";
  91                         TB_FoundURL = false;
  92                         if(imageGroup){
  93                                 TB_TempArray = jQuery("a[rel="+imageGroup+"]").get();
  94                                 for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
  95                                         var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
  96                                                 if (!(TB_TempArray[TB_Counter].href == url)) {
  97                                                         if (TB_FoundURL) {
  98                                                                 TB_NextCaption = TB_TempArray[TB_Counter].title;
  99                                                                 TB_NextURL = TB_TempArray[TB_Counter].href;
 100                                                                 TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>"+thickboxL10n.next+"</a></span>";
 101                                                         } else {
 102                                                                 TB_PrevCaption = TB_TempArray[TB_Counter].title;
 103                                                                 TB_PrevURL = TB_TempArray[TB_Counter].href;
 104                                                                 TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>"+thickboxL10n.prev+"</a></span>";
 105                                                         }
 106                                                 } else {
 107                                                         TB_FoundURL = true;
 108                                                         TB_imageCount = thickboxL10n.image + ' ' + (TB_Counter + 1) + ' ' + thickboxL10n.of + ' ' + (TB_TempArray.length);
 109                                                 }
 110                                 }
 111                         }
 112
 113                         imgPreloader = new Image();
 114                         imgPreloader.onload = function(){
 115                         imgPreloader.onload = null;
 116
 117                         // Resizing large images - original by Christian Montoya edited by me.
 118                         var pagesize = tb_getPageSize();
 119                         var x = pagesize[0] - 150;
 120                         var y = pagesize[1] - 150;
 121                         var imageWidth = imgPreloader.width;
 122                         var imageHeight = imgPreloader.height;
 123                         if (imageWidth > x) {
 124                                 imageHeight = imageHeight * (x / imageWidth);
 125                                 imageWidth = x;
 126                                 if (imageHeight > y) {
 127                                         imageWidth = imageWidth * (y / imageHeight);
 128                                         imageHeight = y;
 129                                 }
 130                         } else if (imageHeight > y) {
 131                                 imageWidth = imageWidth * (y / imageHeight);
 132                                 imageHeight = y;
 133                                 if (imageWidth > x) {
 134                                         imageHeight = imageHeight * (x / imageWidth);
 135                                         imageWidth = x;
 136                                 }
 137                         }
 138                         // End Resizing
 139
 140                         TB_WIDTH = imageWidth + 30;
 141                         TB_HEIGHT = imageHeight + 60;
 142                         jQuery("#TB_window").append("<a href='' id='TB_ImageOff'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon'></span></button></div>");
 143
 144                         jQuery("#TB_closeWindowButton").click(tb_remove);
 145
 146                         if (!(TB_PrevHTML === "")) {
 147                                 function goPrev(){
 148                                         if(jQuery(document).unbind("click",goPrev)){jQuery(document).unbind("click",goPrev);}
 149                                         jQuery("#TB_window").remove();
 150                                         jQuery("body").append("<div id='TB_window'></div>");
 151                                         tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
 152                                         return false;
 153                                 }
 154                                 jQuery("#TB_prev").click(goPrev);
 155                         }
 156
 157                         if (!(TB_NextHTML === "")) {
 158                                 function goNext(){
 159                                         jQuery("#TB_window").remove();
 160                                         jQuery("body").append("<div id='TB_window'></div>");
 161                                         tb_show(TB_NextCaption, TB_NextURL, imageGroup);
 162                                         return false;
 163                                 }
 164                                 jQuery("#TB_next").click(goNext);
 165
 166                         }
 167
 168                         jQuery(document).bind('keydown.thickbox', function(e){
 169                                 if ( e.which == 27 ){ // close
 170                                         tb_remove();
 171
 172                                 } else if ( e.which == 190 ){ // display previous image
 173                                         if(!(TB_NextHTML == "")){
 174                                                 jQuery(document).unbind('thickbox');
 175                                                 goNext();
 176                                         }
 177                                 } else if ( e.which == 188 ){ // display next image
 178                                         if(!(TB_PrevHTML == "")){
 179                                                 jQuery(document).unbind('thickbox');
 180                                                 goPrev();
 181                                         }
 182                                 }
 183                                 return false;
 184                         });
 185
 186                         tb_position();
 187                         jQuery("#TB_load").remove();
 188                         jQuery("#TB_ImageOff").click(tb_remove);
 189                         jQuery("#TB_window").css({'visibility':'visible'}); //for safari using css instead of show
 190                         };
 191
 192                         imgPreloader.src = url;
 193                 }else{//code to show html
 194
 195                         var queryString = url.replace(/^[^\?]+\??/,'');
 196                         var params = tb_parseQuery( queryString );
 197
 198                         TB_WIDTH = (params['width']*1) + 30 || 630; //defaults to 630 if no parameters were added to URL
 199                         TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no parameters were added to URL
 200                         ajaxContentW = TB_WIDTH - 30;
 201                         ajaxContentH = TB_HEIGHT - 45;
 202
 203                         if(url.indexOf('TB_iframe') != -1){// either iframe or ajax window
 204                                         urlNoQuery = url.split('TB_');
 205                                         jQuery("#TB_iframeContent").remove();
 206                                         if(params['modal'] != "true"){//iframe no modal
 207                                                 jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon'></span></button></div></div><iframe frameborder='0' hspace='0' allowtransparency='true' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' >"+thickboxL10n.noiframes+"</iframe>");
 208                                         }else{//iframe modal
 209                                         jQuery("#TB_overlay").unbind();
 210                                                 jQuery("#TB_window").append("<iframe frameborder='0' hspace='0' allowtransparency='true' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'>"+thickboxL10n.noiframes+"</iframe>");
 211                                         }
 212                         }else{// not an iframe, ajax
 213                                         if(jQuery("#TB_window").css("visibility") != "visible"){
 214                                                 if(params['modal'] != "true"){//ajax no modal
 215                                                 jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'><div class='tb-close-icon'></div></a></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
 216                                                 }else{//ajax modal
 217                                                 jQuery("#TB_overlay").unbind();
 218                                                 jQuery("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
 219                                                 }
 220                                         }else{//this means the window is already up, we are just loading new content via ajax
 221                                                 jQuery("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
 222                                                 jQuery("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
 223                                                 jQuery("#TB_ajaxContent")[0].scrollTop = 0;
 224                                                 jQuery("#TB_ajaxWindowTitle").html(caption);
 225                                         }
 226                         }
 227
 228                         jQuery("#TB_closeWindowButton").click(tb_remove);
 229
 230                                 if(url.indexOf('TB_inline') != -1){
 231                                         jQuery("#TB_ajaxContent").append(jQuery('#' + params['inlineId']).children());
 232                                         jQuery("#TB_window").bind('tb_unload', function () {
 233                                                 jQuery('#' + params['inlineId']).append( jQuery("#TB_ajaxContent").children() ); // move elements back when you're finished
 234                                         });
 235                                         tb_position();
 236                                         jQuery("#TB_load").remove();
 237                                         jQuery("#TB_window").css({'visibility':'visible'});
 238                                 }else if(url.indexOf('TB_iframe') != -1){
 239                                         tb_position();
 240                                         jQuery("#TB_load").remove();
 241                                         jQuery("#TB_window").css({'visibility':'visible'});
 242                                 }else{
 243                                         var load_url = url;
 244                                         load_url += -1 === url.indexOf('?') ? '?' : '&';
 245                                         jQuery("#TB_ajaxContent").load(load_url += "random=" + (new Date().getTime()),function(){//to do a post change this load method
 246                                                 tb_position();
 247                                                 jQuery("#TB_load").remove();
 248                                                 tb_init("#TB_ajaxContent a.thickbox");
 249                                                 jQuery("#TB_window").css({'visibility':'visible'});
 250                                         });
 251                                 }
 252
 253                 }
 254
 255                 if(!params['modal']){
 256                         jQuery(document).bind('keydown.thickbox', function(e){
 257                                 if ( e.which == 27 ){ // close
 258                                         tb_remove();
 259                                         return false;
 260                                 }
 261                         });
 262                 }
 263
 264                 $closeBtn = jQuery( '#TB_closeWindowButton' );
 265                 /*
 266                  * If the native Close button icon is visible, move focus on the button
 267                  * (e.g. in the Network Admin Themes screen).
 268                  * In other admin screens is hidden and replaced by a different icon.
 269                  */
 270                 if ( $closeBtn.find( '.tb-close-icon' ).is( ':visible' ) ) {
 271                         $closeBtn.focus();
 272                 }
 273
 274         } catch(e) {
 275                 //nothing here
 276         }
 277 }
 278
 279 //helper functions below
 280 function tb_showIframe(){
 281         jQuery("#TB_load").remove();
 282         jQuery("#TB_window").css({'visibility':'visible'}).trigger( 'thickbox:iframe:loaded' );
 283 }
 284
 285 function tb_remove() {
 286         jQuery("#TB_imageOff").unbind("click");
 287         jQuery("#TB_closeWindowButton").unbind("click");
 288         jQuery( '#TB_window' ).fadeOut( 'fast', function() {
 289                 jQuery( '#TB_window, #TB_overlay, #TB_HideSelect' ).trigger( 'tb_unload' ).unbind().remove();
 290                 jQuery( 'body' ).trigger( 'thickbox:removed' );
 291         });
 292         jQuery( 'body' ).removeClass( 'modal-open' );
 293         jQuery("#TB_load").remove();
 294         if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
 295                 jQuery("body","html").css({height: "auto", width: "auto"});
 296                 jQuery("html").css("overflow","");
 297         }
 298         jQuery(document).unbind('.thickbox');
 299         return false;
 300 }
 301
 302 function tb_position() {
 303 var isIE6 = typeof document.body.style.maxHeight === "undefined";
 304 jQuery("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
 305         if ( ! isIE6 ) { // take away IE6
 306                 jQuery("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
 307         }
 308 }
 309
 310 function tb_parseQuery ( query ) {
 311    var Params = {};
 312    if ( ! query ) {return Params;}// return empty object
 313    var Pairs = query.split(/[;&]/);
 314    for ( var i = 0; i < Pairs.length; i++ ) {
 315       var KeyVal = Pairs[i].split('=');
 316       if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
 317       var key = unescape( KeyVal[0] );
 318       var val = unescape( KeyVal[1] );
 319       val = val.replace(/\+/g, ' ');
 320       Params[key] = val;
 321    }
 322    return Params;
 323 }
 324
 325 function tb_getPageSize(){
 326         var de = document.documentElement;
 327         var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
 328         var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
 329         arrayPageSize = [w,h];
 330         return arrayPageSize;
 331 }
 332
 333 function tb_detectMacXFF() {
 334   var userAgent = navigator.userAgent.toLowerCase();
 335   if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
 336     return true;
 337   }
 338 }