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

[Gerhard Obermann]

JQSlider is not a subclass of WAComponent!

cheers
Gerhard

On Wed, Aug 4, 2010 at 9:03 AM, 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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>
>
>
>
>
>
>
>
>
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