Re: show spinner until something is done

Hello Sabina,

Don’t know how you do javascript and JQuery in Seaside (I use Appex) but can’t you build something like this:

http://stackoverflow.com/questions/5525071/how-to-wait-until-an-element-exists <http://stackoverflow.com/questions/5525071/how-to-wait-until-an-element-exists>

Maarten,



> On 25 Jul 2016, at 11:52, Sabine Manaa <[email protected]> wrote:
> 
> I create pdf reports which are converted to pngs for small previews (and
> print/mail/export).
> 
> When the user clicks at "report", there are several pdf reports and their
> pngs generated in the background.
> In this moment (When the user clicks at "report"), the application changes
> to the reports page.
> But in this moment, the repots possibly are not yet finished :-)
> 
> So, I want to  show a spinner/counter for each of the reports and update
> each in the moment when the png is ready.
> 
> I succeeded with all but the spinner/counter and the moment when the page
> renders. Its to late.
> 
> My problem is that the page is rendered only in the moment, when the code is
> run. Not earlier.
> I assume the onLoad is to late? I tried several things for several hours :-(
> and now I want to ask the community.
> 
> I reduced the problem to a very simple example: 2 methods with the question:
> how to change this code to update the counter 1,2,3,4...
> Very curious about a solution
> 
> 
>>> renderContentOn: html
> 	html div
> 		id: 'image';
> 		with: [ html text: 'Waiting for the report' ].
> 	html div
> 		id: 'counter';
> 		with: [ html text: 'This should count 1,2,3...' ].
> 	html document addLoadScript: (html jQuery ajax script: [ :script | self
> loadScriptIndex: 1 script: script ])
> 	
>>> loadScriptIndex: anIndex script: s  
> 	| theIndex |
> 	(Delay forMilliseconds: 100) wait.
> 	theIndex := anIndex.
> 	"aPngFilename asFileReference exists" anIndex > 50 "simulate file is there
> after some time"
> 		ifTrue: [  
> 			s << (s jQuery: #image)
> 				replaceWith: [ :h | 
> 					h text: theIndex asString.
> 					h image
> 						altText: 'Report';
> 						width: '100%';
> 						url: 'http://localhost/reports/a.png' ] ]
> 		ifFalse: [ theIndex := theIndex + 1.
> 			s << (s jQuery: #counter)
> 				replaceWith: [ :h | 
> 					h div
> 						id: #counter;
> 						with: [ h text: theIndex asString ] ].
> 			self
> 				loadScriptIndex: theIndex
> 				script: s
> 				 
> 				 
> and possibly
> registerTestApplication
> 	| theApplication |
> 	theApplication := WAAdmin register: RKATestView asApplicationAt: 'RKT'.
> 	theApplication
> 		addLibrary: JQDeploymentLibrary;
> 		addLibrary: JQUiDeploymentLibrary.
> 	^ theApplication
> 
> 
> 
> 
> 
> --
> View this message in context: http://forum.world.st/show-spinner-until-something-is-done-tp4907725.html
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