On Mon, Nov 22, 2010 at 11:57 PM, Brion Vibber <br...@pobox.com> wrote:
> On Mon, Nov 22, 2010 at 1:03 PM, Nicolas Vervelle <nverve...@gmail.com > >wrote: > > > Molecular files exist in several formats : pdb, cif, mol, xyz, cml, ... > > Usually they are detected as simple MIME types (either text/plain or > > application/xml) by MediaWiki and not as more precise types (even if this > > types exist : chemical/x-pdb, chemical/x-xyz, ...). > > It seems that to register a Media handler, I have to add an entry to > > $wgMediaHandlers[] : $wgMediaHandler['text/plain'] = 'MolecularHandler'; > > Will it be a problem to use such a general MIME type to register the > > handler > > ? Especially for files of the same MIME type but that are not molecular > > files ? > > > > You'd want to make sure the type detection correctly identifies your files > so you can associate the handler types, or it's going to make things > confusing. > > For XML files, you should usually be able to add to the $wgXMLMimeTypes > array, which by default recognizes the root elements for HTML, SVG, and Dia > vector drawings -- see the entries in DefaultSettings.php as examples. It > can recognize XML files by either bare or namespaced root element name, and > associates the files with the given MIME type. > Oh, good, that's what I need for file types like CML (Chemical Markup Language). I will start working on the media handler only with this kind of files, easier to begin with them. > For plaintext types that aren't currently recognized I'm not 100% sure how > best to proceed; might have to override $wgMimeTypesFile or even make some > changes to MimeMagic.php (the class that encapsulates most of the file type > detection). > > Ok, but detection of mime type for some chemical file formats will be quite difficult. Some file formats are just a list of atom coordinates with bonds (each line is simply several numbers separated by a tab). I will take a look at $wgMimeTypesFile or MimeMagic.php after I manage to work with XML files. > > > > I want to use the Jmol <http://www.jmol.org/> applet for displaying the > > molecule in 3d, and allowing the user to manipulate it. > > But the applet is about 1M in size, so it takes time to load the first > > time, > > then to start and load the molecular file. > > I would like to start showing a still image (generated on the server) and > a > > button to let the user decide when loading the applet if interested in. > > Several questions for doing this with MediaWiki : > > > > - What hook / event should I use to be able to add this content in the > > File:... page ? > > - Is there a way to start displaying the File:... page, compute the > still > > image in the background,and add it in the File:... page after ? > > - Are there any good practices for doing this kind of things ? > > > > You might want to look at OggHandler as an example. It too needs to create > still-image thumbnails and delay loading of the actual video via Java > applet, direct embedding, or HTML 5 <video> tag, and hooks various spots in > order to do so. > Ok, thanks, I will try to understand how OggHandler works. Nico _______________________________________________ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
