koha-tmpl/opac-tmpl/prog/en/js/google-jackets.js

   1 if (typeof KOHA == "undefined" || !KOHA) {
   2     var KOHA = {};
   3 }
   4
   5 /**
   6  * A namespace for Google related functions.
   7  */
   8 KOHA.Google = {
   9
  10
  11     /**
  12      * Search all:
  13      *    <div title="biblionumber" id="isbn" class="gbs-thumbnail"></div>
  14      * and run a search with all collected isbns to Google Book Search.
  15      * The result is asynchronously returned by Google and catched by
  16      * gbsCallBack().
  17      */
  18     GetCoverFromIsbn: function() {
  19         var bibkeys = [];
  20         $(".gbs-thumbnail").each(function(i) {
  21             bibkeys.push(this.id); // id=isbn
  22         });
  23         bibkeys = bibkeys.join(',');
  24         var scriptElement = document.createElement("script");
  25         scriptElement.setAttribute("id", "jsonScript");
  26         scriptElement.setAttribute("src",
  27             "http://books.google.com/books?bibkeys=" + escape(bibkeys) +
  28             "&jscmd=viewapi&callback=KOHA.Google.gbsCallBack");
  29         scriptElement.setAttribute("type", "text/javascript");
  30         document.documentElement.firstChild.appendChild(scriptElement);
  31
  32     },
  33
  34     /**
  35      * Add cover pages and links to Google detail in <div
  36      */
  37     gbsCallBack: function(booksInfo) {
  38         for (id in booksInfo) {
  39             var book = booksInfo[id];
  40             $("#"+book.bib_key).each(function() {
  41                 var a = document.createElement("a");
  42                 a.href = book.info_url;
  43                     var img = document.createElement("img");
  44                                 if(typeof(book.thumbnail_url) != "undefined"){
  45                         img.src = book.thumbnail_url;
  46                             a.appendChild(img);
  47                         $(this).append(a);
  48                                 }
  49             });
  50         }
  51     }
  52 };