[Moose-dev] Re: Error dialog?

Hi Luke, I'm doing something similar right now: For the class that will trigger the long computation: gtInspectorPreviewIn: composite <gtInspectorPresentationOrder: -10> ^ composite fastTable title: 'Matches'; display: [ self patterns ]; enableElementIndex; column: 'Index' evaluated: [ :val :i | i asString ] width: 40; column: 'Item' evaluated: [ :val | GTObjectPrinter asTruncatedTextFrom: val ast]; send: [:res | res findMatchesWith: matcher. res ]. And then in that findMatchesWith: method, the code that performs the long computation displays a progress bar like this: 'Searching in programs' displayProgressFrom: 1 to: programs size during: [:bar | 1 to: programs size do: [ :i | | prog | bar current: i. prog := programs at: i. result at: prog key put: (self findMatchesOf: aRCPatternMatch ast in: prog value)]]. HTH -- Johan Fabry, Senior Software Engineer. johan@raincode.com<mailto:johan@raincode.com> | Email too brief? Here's why! http://emailcharter.org<http://emailcharter.org/> From: Moose-dev [mailto:moose-dev-bounces@list.inf.unibe.ch] On Behalf Of Luke Gorrie Sent: Tuesday, March 27, 2018 1:48 PM To: Moose-related development &lt;moose-dev(a)list.inf.unibe.ch&gt; Subject: [Moose-dev] Re: Error dialog? Related question: Is there a simple way to show a progress meter while I am running actions in the inspector? Perhaps with a 'Cancel' button if the user becomes impatient? Some of my inspections can take a long time, either to read a file or to render a visualization, and it would be great to keep users in the loop a bit. On 26 March 2018 at 12:29, Luke Gorrie <luke@snabb.co<mailto:luke@snabb.co>> wrote: Hoi! Suppose that my GTInspector extension method fails for some interesting reason. How should I present an error message to the user? I'm am especially thinking of cases where I am spawning a Unix command behind the scenes and I want to show the (possibly long) output of the command to the user. Could happen either in an inspector extension method or also in a "Go" action of the inspector. Tips would be much appreciated :).