[Seaside] really simple JQuery slider/widget example without the support of the test classes?

[Lukas Renggli]

You should subclass WAComponent, not WASlider (this is not a component).

Lukas

On Wednesday, August 4, 2010, Lawson English <lenglish5 at cox.net> wrote:
>
>
>
>
>
>
> On 8/3/10 11:29 PM, Andreas Raab wrote:
> On 8/3/2010
> 11:14 PM, Lukas Renggli wrote:
>
>   You can copy and paste that example, there
> are no other dependencies
>
> but the inst-var 'current' that you should initialize with a number.
>
>
>
> I think he might be looking for this:
>
>
> http://book.seaside.st/book/getting-started/pharo-squeak/first-component/registering
>
>
> I ran into the same issue; it is decided non-obvious that the creation
> of a component on the welcome page "magically" works but that there's
> no trace in the resulting code that reveals what one must do to to
> perform the equivalent action in code somewhere (i.e., if you create
> the very same class by hand "it doesn't work").
>
>
> I do understand why this stuff works the way it works but I think
> clarity could be dramatically improved by having something that makes
> the necessary registration explicit. Could be as simple as having the
> registration in the class initialization of components created on the
> welcome page - I certainly would've found that.
>
>
> Cheers,
>
>   - Andreas
>
>
>
>
> I'm
> afraid I did that. :-(
>
>
> WAAdmin register: WebCounter asApplicationAt: 'webcounter'.
> WAAdmin register: ExampleJQSlider asApplicationAt: 'exampleslider'.
>
> WebCounter initialize.
> ExampleJQSlider initialize.
>
> the webcounter app works.
> the exampleslider app has the error:
>
>
>
> WAToolDecoration(Object)>>doesNotUnderstand: #setOwner:
>
>
> fileout:
>
>
> 'From Squeak4.1 of 17 April 2010 [latest update: #9957] on 3 August
> 2010 at 11:48:53 pm'!
>
> JQSlider subclass: #ExampleJQSlider
>
>     instanceVariableNames: 'count current'
>
>     classVariableNames: ''
>
>     poolDictionaries: ''
>
>     category: 'JQuery-Examples'!
>
>
> !ExampleJQSlider methodsFor: 'initialization' stamp: 'LDE 8/3/2010
> 21:50'!
>
> initialize
>
>    super initialize.
>
>    current := 50! !
>
>
>
> !ExampleJQSlider methodsFor: 'rendering' stamp: 'LDE 8/3/2010 23:30'!
>
> renderContentOn: html
>
>     html div script: (html jQuery new slider
>
>       value: current;
>
>      onChange: (html jQuery ajax
>
>          callback: [ :value | current := value asNumber ]
>
>        value: (html jQuery this slider getValue)))
>
> ! !
>
>
> "-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!
>
>
> ExampleJQSlider class
>
>     instanceVariableNames: ''!
>
>
> !ExampleJQSlider class methodsFor: 'class initialization' stamp: 'LDE
> 8/3/2010 23:31'!
>
> initialize
>
>     WAAdmin register: self asApplicationAt: 'exampleslider'! !
>
>
>
> ExampleJQSlider initialize!
>
>
>
>
>
>
> On 8/3/10 11:14 PM, Lukas Renggli wrote:
>
> You can copy and
> paste that example, there are no other dependencies
>
> but the inst-var 'current' that you should initialize with a number.
>
>
> Lukaa
>
>
> On Wednesday, August 4, 2010, Lawson English<lenglish5 at cox.net> <lenglish5 at cox.net>
> wrote:
>
>   can anyone point
> to me a REALLY simple transitional example on how to implement a JQuery
> slider? Something along the lines of the webcoiunter example in the
> seaside book that holds my hand the entire way?
>
>
> something like http://demo.seaside.st/javascript/jquery-ui/sliderwidget
> with the detail of http://www.seaside.st/about/examples/counter
>
> [
>
>   I can't figure out how to apply the
> JQSliderFunctionalTest>>renderContentOn:  method to something
> that doesn't have the infrastructure of the test class hierarchy
> behind it.
>
>
>
> MyTestSlider>>renderContentOn: html
>
>     html div script: (html jQuery new slider
>
>        value: current;
>
>        onChange: (html jQuery ajax
>
>           callback: [ :value | current := value asNumber ]
>
>           value: (html jQuery this slider getValue)))
>
>
> doesn't work as I haven't a clue what extra methods are required to
> implement the functionality of the example and I can't wrap my head
> about the multiple layers of the hierarchy to figure out how the
> different widgets are plugged into the sample page...
>
>
>
>
> Thanks.
>
>
>
> Lawson
>
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-- 
Lukas Renggli
www.lukas-renggli.ch