Hi,
I'm Giacomo and in the company I'm working for we're using Mediawiki
1.18.1 with the Semantic Bundle installed ( version 20120327, Semantic
Media Wiki version 1.7.1 ).
We recently tried to upgrade mediawiki to version 1.22 and Semantic
Media Wiki to version 1.9.1 and now we are facing a problem with a
javascript library:
the library is called Sgvizler (http://dev.data2000.no/sgvizler/) and
it's used to query a Sparql endpoint and visualize the results using the
google chart
visualization libraries (
https://developers.google.com/chart/interactive/docs/index).
As explained in the sgvizler documentation, inserting a div tag with the
correct attributes, the library will draw the requested charts; you just
need to import the sgvizler.js file and the script for the google api
(https://www.google.com/jsapi).
Calling the sgvizler library from an html test page it works just fine,
while if we put the html code (see the attached file) inside a wiki page
(between <html>...</html> tags, setting $wgRawHtml=true in
LocalSettings.php) the browser freezes and stop responding ("script
stopped responding") (both Firefox and Chrome).
It should be noticed that the same wiki page with the same content is
correctly rendered in mediawiki 1.18.1, using the extension Widgets
(version 0.9.2); in mediawiki 1.22.7 we tried the library embedding it
in extesion Widgets version 0.9.2, 1.0 and 1.1, and also without using
Widgets (as depicted above).
I think the issue is a javascript/client problem with the visualization
libraries, since the sparql endpoint receives the query and the results
are sent back correctly.
Debugging, the execution seems to stop/loop on the Script:
https://www.google.com/uds/api/visualization/1.0/ce05bcf99b897caacb56a7105ca4b6ed/format+en,default+en,ui+en,corechart+en.I.js
Since the library is working just fine with mediawiki 1.18.1, could the
issue have something to do with resources/libraries loaded in mediawiki
1.22? I noticed that in the mw 1.22 source page there are these lines in
the header:
if(window.mw){
mw.loader.load(["ext.smw.style","ext.smw.tooltips","mediawiki.page.startup","mediawiki.legacy.wikibits","mediawiki.legacy.ajax","skins.vector.js"]);
}
while in mw 1.18 we just have:
if (window.mw){
mw.loader.load(["mediawiki.page.startup"])
}
What are your suggestions to track down this problem?
Thank you in advance for any help you can provide.
Giacomo Fiorini
mail: gfiorini[at]imolinfo.it
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