I'm trying to process a file and display some messages as it is
processed. The skeleton I have below works fine.
My issue is how to stop the refreshes once the processing is done (for
example, once messages has the string 'Done'). I tried moving the
processing and messages onto an embedded subcomponent, calling it and
answering from it when it was done, but the page kept refreshing.
What should I be doing?
initialize
messages _ Dictionary new.
messages at: #text put: 'Stopped'.
renderContentOn: html
html form multipart; with: [
html fileUpload callback: [:f |
[self insertFile: f ] forkNamed: 'insertProcess'.
html div id: 'insertMessages';
refreshWith: [ :ev :h | h render: (messages at: #text) ]
every: 2 seconds ].
html submitButton text: 'Insert File'.
html div id: 'insertMessages';
with: [ html render: (messages at: #text) ]
]
insertFile: aFile
(1 to: 5) do: [ :i |
messages at: #text put: ('Line ', i asString).
(Delay forSeconds: 1) wait ].
messages at: #text put: 'Done'
rendererClass
^ WAAsyncRenderCanvas
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