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Bug 341463

Summary:	[Model browser] stays on "loading..." indefinitely
Product:	[Modeling] MoDisco	Reporter:	Nicolas Bros <nicolas.bros>
Component:	Infrastructure	Assignee:	Nicolas Bros <nicolas.bros>
Status:	CLOSED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	hugo.bruneliere, modisco.web-inbox
Version:	0.9.0	Flags:	nicolas.bros: indigo+
Target Milestone:	0.9.0 M7
Hardware:	PC
OS:	Windows 7
Whiteboard:

Description Nicolas Bros

2011-03-31 07:42:55 EDT

Suddenly the browser doesn't work anymore: when I expand a node, it displays "loading...", and the children don't load.

I investigated, and found that the model change notification that used to happen, and which was supposed to refresh the browser and display the loaded node doesn't happen anymore.

Comment 1 Nicolas Bros

2011-03-31 12:17:26 EDT

Fixed in revision 4214.

Comment 2 Nicolas Bros

2011-04-01 03:42:57 EDT

I have added an explicit refresh after the value (children, text, image, ...) is computed, instead of relying on an indirect refresh through a model change notification that was supposed to trigger the refresh through a chain of events.

I extracted the asynchronous computing functionality into a new class NonBlockingElementComputation<T>, and I generalized it for each possibly blocking computation done by either the label or content providers.

The way it works is that it computes a value synchronously initially, and then it continues asynchronously if the computation takes too much time (> 200ms per computation).

I also fixed the "browse" functionality, so that it waits for the element to be displayed (after a refresh) until it attempts to select it.

Comment 3 Hugo Bruneliere

2011-08-18 08:02:50 EDT

Bug solved.