Jonathan Druart
819095aa21
window.load won't assure us that the images loaded using JS code are correctly loaded. This patch adds a flag to the different providers when the images are fully loaded. Note that the img.naturalHeight check is not working for google jackets and is actually not needed (test with a bib record with and without google jacket and confirm that it's working as expected). Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
84 lines
3.3 KiB
JavaScript
84 lines
3.3 KiB
JavaScript
if (typeof KOHA == "undefined" || !KOHA) {
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var KOHA = {};
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}
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/**
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* A namespace for Google related functions.
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*/
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KOHA.Google = {
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/**
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* Search all:
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* <div title="biblionumber" id="isbn" class="gbs-thumbnail"></div>
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* or
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* <div title="biblionumber" id="isbn" class="gbs-thumbnail-preview"></div>
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* and run a search with all collected isbns to Google Book Search.
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* The result is asynchronously returned by Google and catched by
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* gbsCallBack().
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*/
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GetCoverFromIsbn: function(newWindow) {
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var bibkeys = [];
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$("[id^=gbs-thumbnail]").each(function(i) {
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bibkeys.push($(this).attr("class")); // id=isbn
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});
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bibkeys = bibkeys.join(',');
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var scriptElement = document.createElement("script");
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this.openInNewWindow=newWindow;
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scriptElement.setAttribute("id", "jsonScript");
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scriptElement.setAttribute("src",
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"https://books.google.com/books?bibkeys=" + escape(bibkeys) +
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"&jscmd=viewapi&callback=KOHA.Google.gbsCallBack");
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scriptElement.setAttribute("type", "text/javascript");
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document.documentElement.firstChild.appendChild(scriptElement);
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},
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/**
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* Add cover pages <div
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* and link to preview if div id is gbs-thumbnail-preview
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*/
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gbsCallBack: function(booksInfo) {
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var target = '';
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if (this.openInNewWindow) {
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target = 'target="_blank" rel="noreferrer" ';
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}
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for (id in booksInfo) {
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var book = booksInfo[id];
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$("[id^=gbs-thumbnail]."+book.bib_key).each(function() {
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if (typeof(book.thumbnail_url) != "undefined") {
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if ( $(this).data('use-data-link') ) {
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var a = document.createElement("a");
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a.href = book.thumbnail_url;
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var img = document.createElement("img");
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img.src = book.thumbnail_url;
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img.setAttribute('data-link', book.info_url);
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a.append(img)
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$(this).empty().append(a);
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} else {
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var img = document.createElement("img");
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img.src = book.thumbnail_url;
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$(this).empty().append(img);
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var re = /^gbs-thumbnail-preview/;
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if ( re.exec($(this).attr("id")) ) {
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$(this).append(
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'<div class="google-books-preview">' +
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'<a '+target+'href="' +
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book.info_url +
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'"><img src="' +
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'https://books.google.com/intl/en/googlebooks/images/gbs_preview_sticker1.gif' +
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'"></a></div>'
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);
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}
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}
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} else {
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var message = document.createElement("span");
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$(message).attr("class","no-image");
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$(message).html(NO_GOOGLE_JACKET);
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$(this).empty().append(message);
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}
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});
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}
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this.done = 1;
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}
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};
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