Main problem I see there is that you are not waiting for the applet to
initialize. You need to do that call from within an appletReadyCallback
function.
On Tue, Aug 28, 2012 at 3:04 AM, Mikko Rantalainen <
mikko.rantalai...@peda.net> wrote:
> 2012-08-24 17:07 Europe/Helsinki: Robert Hanson:
> > On Fri, Aug 24, 2012 at 3:26 AM, Mikko Rantalainen
> > <mikko.rantalai...@peda.net> wrote:
> >> Is it possible to configure JmolApplet to fetch the required files
> >> through the UA (web browser) instead of directly trying to connect the
> >> server?
> >
> > I believe so. If you can get it through AJAX, you are all set. Just
> > use Jmol-JSO.
> > You should create a new _Applet prototype function on your page:
> >
> > Jmol._Applet.prototype._getSecureFile = function(query, script){
> > this._script("zap;set echo middle center;echo Retrieving data...");
> > // script is necessary only if you need to do the post-load processing
> > var self = this;
> > Jmol._contactServer("?query=" + encodeURIComponent(query),
> > function(data){self._loadModel(data, ";" + script)},
> > function(){alert("error...")}
> > );
> > }
> >
> > and call that from your page link.
>
> I didn't follow what you mean with "page link".
>
> > Then be sure to set Info.serverURL to your server, not mine!
>
> Sure. In fact, I used _ajax() directly and never even use serverURL. See
> below.
>
> > Info.serverURL needs to point to a PHP document on your server to
> > process your request for the "query" -- just deliver the file contents
> > as is. In this way, the actual data files need never be exposed. Only
> > your PHP file needs exposure.
>
> I wonder what I did wrong. Here's the code I'm trying to use:
>
>
> <script>
> // We'll need to call Jmol._ajax() but it's an internal
> // method. We workaround the issue by adding a new
> // public method to Jmol object that calls the internal
> // method for us.
> Jmol._Applet.prototype._loadModelIndirect = function(url, script)
> {
> this._script("zap;\
> set echo middle center;\
> echo Loading model via user agent...");
>
> var self = this;
> var info =
> {
> dataType: "text",
> type: "GET",
> url: url,
> success: function(a)
> {
> Jmol._loadSuccess(a, function(data){
> self._loadModel(data, ";"+script);
> })
> },
> error: function()
> {
> Jmol._loadError(function(e){
> alert("error: "+e)
> })
> },
> async:Jmol._asynchronous
> }
> Jmol._ajax(info);
> };
>
> var Info = {
> color: "#FFFFFF", // background color
> width: "100%",
> height: "100%",
> script: "language=\u0022fi\u0022;",
> use: "Java WebGL",
> jarPath: "/path/to/jmol/13.0.1",
> jarFile: "JmolApplet.jar",
> isSigned: false,
> //debug: true,
> };
>
> myJmol = Jmol.getApplet("JmolView", Info);
> myJmol._loadModelIndirect("http://path/to/molecule.jmol";, "");
> </script>
>
>
> The URL in _loadModelIndirect() will return the actual data only if
> correct "session-id" is passed as a cookie.
>
> I see that the browser is correctly downloading the molecule
> and Jmol._loadModel() will be called with first parameter set
> to the contents of the file and second parameter is set to
> an empty string.
>
> I can then trace the execution to Jmol._Applet.prototype._loadModel() in
> JmolApplet.js (from Jmol version 13.0.1) using Firefox 14 and
> Firebug. The browser then executes
>
> ***
> Jmol._Applet.prototype._loadModel = function(mol, params) {
> var script = 'load DATA "model"\n' + mol + '\nEND "model" '
> + params;
> this._applet.script(script);
> }
> ***
>
> Here the call 'this._applet.script()' will be passed a very long
> string (around 170 KB):
>
> 'load DATA "model"\nMODEL_FILE_CONTENTS\nEND "model" ;'
>
> where MODEL_FILE_CONTENTS is the actual file contents from correct .jmol
> file (techically a ZIP archive).
>
> Then nothing happens. The red message "Loading model via user
> agent..." stays in the middle of the applet with zero CPU usage.
>
> Do I need to do something else after calling Jmol._loadModel() inside
> the ajax callback to get the model visible?
>
> --
> Mikko
>
>
>
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--
Robert M. Hanson
Larson-Anderson Professor of Chemistry
Chair, Chemistry Department
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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