Feature Requests item #1640990, was opened at 2007-01-21 14:32 Message generated for change (Comment added) made by hansonr You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=379136&aid=1640990&group_id=23629
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Priority: 5 Private: No Submitted By: Angel Herraez (aherraez) Assigned to: Nobody/Anonymous (nobody) Summary: preloader applet Initial Comment: While visiting http://www.micro.magnet.fsu.edu/primer/java/jablonski/solventeffects/ I have found that they use what seems like an initial applet advising the user that the main applet is being loaded. I've seen this in several sites using Flash animations. This could be a nice idea for Jmol. Since the applet takes quite a time to download from distant servers, a warning for the user would be adequate. Right now, we have three steps: 1) a sizeable delay before Jmol's black square comes --the user may think the browser has stuck--; 2) the black square in Jmol shows a count-up of time, until the applet finishes loading --the user knows things are going on--; 3) time needed for the model to load. This can be anticipated by the web author, programming an initial "echo" script to warn the user. Step (1) would benefit from some warning. Would it be feasible? Could the modular, 6-piece JAR files design be used for this, or a separate applet jar that does the preloading role? ---------------------------------------------------------------------- >Comment By: Bob Hanson (hansonr) Date: 2007-05-02 12:51 Message: Logged In: YES user_id=1082841 Originator: NO I think all Angel was going to do was change the discussion of Jmol.js --- what files are involved and where to put them. Angel, mention that future versions of Jmol may have additional files. But from now on they will not be 1-6. JmolApplet.jar and JmolApplet0.jar are the only ones that are still there from the former set, but they are totally changed. Once JmolApplet0.jar loads, then the browser can start building the applet and only downloading files as necessary. By the way, that also means that web page developers do not have to provide files that they won't be using. The mission-critical files are these (650K): JmolApplet0.jar JmolAppletCore.jar JmolAppletJars.jar JmolAppletJvxl.jar JmolAppletMain.jar JmolAppletPopup.jar JmolAppletViewer.jar And the optional set includes: JmolAppletQuantum.jar JmolAppletReadersCifPdb.jar JmolAppletReadersMolXyz.jar JmolAppletReadersMore.jar JmolAppletReadersXml.jar JmolAppletShapeBio.jar JmolAppletShapeSpecial.jar JmolAppletSmiles.jar JmolApplet_i18n.jar But mostly we want people to have them all and not pick and choose. Originally I was thinking we might need some sort of modification to Jmol.js, but Nico set me straight on that, and that's no longer necessary. Bob ---------------------------------------------------------------------- Comment By: Nicolas (nicove) Date: 2007-05-02 11:50 Message: Logged In: YES user_id=1096197 Originator: NO > Step (1) would benefit from some warning. I think the web page designer could do it without modifying Jmol. Would it be possible to display a text (in the HTML page) over the applet ? and remove it when Jmol has finished loading ? If it's possible, then it could probably be added in Jmol.js. > I will change whatever needed in the website (Jmol.js library, mainly). Is there a need to change anything ? I think Jmol.js has been modified to only reference JmolApplet0.jar and not the others. > JmolAppletViewer.jar Would it be possible to split this one again ? It probably contains many classes that are used only when some options are activated. ---------------------------------------------------------------------- Comment By: Angel Herraez (aherraez) Date: 2007-05-02 10:47 Message: Logged In: YES user_id=1065324 Originator: YES > Isn't that what the white Java image with the rotating ticks is for? I think that's Java loading, but there is a delay between that finishing and the Jmol "loading" message coming. In any case, don't worry; let's see how things work with the new on-demand loading. > Angel, you will want to note that we no longer have > JmolApplet0-6.jar Instead, we have the following: Right. I will change whatever needed in the website (Jmol.js library, mainly). ---------------------------------------------------------------------- Comment By: Bob Hanson (hansonr) Date: 2007-05-02 10:12 Message: Logged In: YES user_id=1082841 Originator: NO Isn't that what the white Java image with the rotating ticks is for? I don't think time needed to load can be anticipated by anyone -- it depends upon how many networks and what kind are being traversed, and whether the applet is cached, and whether Java is already loaded. We'll go with the much better preloading that is being introduced in Jmol 11.1.30. Angel, you will want to note that we no longer have JmolApplet0-6.jar Instead, we have the following: JmolApplet0.jar JmolAppletCore.jar JmolAppletJars.jar JmolAppletJvxl.jar JmolAppletMain.jar JmolAppletPopup.jar JmolAppletQuantum.jar JmolAppletReadersCifPdb.jar JmolAppletReadersMolXyz.jar JmolAppletReadersMore.jar JmolAppletReadersXml.jar JmolAppletShapeBio.jar JmolAppletShapeSpecial.jar JmolAppletSmiles.jar JmolAppletViewer.jar JmolApplet_i18n.jar Now there will be a possibly significant difference between using or not using a jmolInitialize() command, because without it Jmol will use JmolApplet.jar, with no incremental loading, but with it there will be incremental loading with possible startup enhancements (but associated delays later on, as critical files are downloaded when required). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=379136&aid=1640990&group_id=23629 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. 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