Can anyone help with a Seaside jQuery ajax issue?
I want to change the contents of a div when the mouse goes over a document
element by means of an ajax call.
In this example, I have rendered a list of words as spans (one span per
word). When the mouse goes over any span, I want to show the dictionary
definition of the word in another div on the page. The dictionary definition
has to be generated on the server side.
So I have to reference the current span ("this") in my ajax processing.
I find I can change the page contents as desired when the mouse moves over a
span (see below) but I am completely clueless how to get the text of the
span, the word itself, into the html I want to render.
renderContentOn: html
|aQuery anAjax|
aQuery := html jQuery expression:'span'.
anAjax := html jQuery ajax.
anAjax script: [ :s | s << ( (s jQuery: #GlossViewer) html:'This was
written by an ajax call')].
aQuery onMouseEnter: anAjax asFunction.
html div id:#TextViewer; class:'TextPane'; with:[self
renderWordsAsSpans:
html].
html div id:#GlossViewer; class:'GlossPane'; with:'The grammatical
analysis
goes here'.
html document addLoadScript: aQuery.
My basic problem is that I have no real idea of how data is passed back to
my program in an ajax call and how I can reference it in my code. The
seaside documentation is not bad on JQuery as a whole, but explanations and
examples of ajax processing with Jquery and Seaside are not easily found.
If it's relevant I'm using Pharo 2.0 Summer and Seaside 3.
Thanks.
Ken
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