Event when cavas became visible

[gravityshock]

Hello,
I am looking for a possibility to get a notify, when a special tab of a tabset became visible.

The whole tabset will be invisible in various situations (parent sectionstack collapsed, the whole part of the application (=surrouning canvas') can be fade out, etc.).

Experimental I override the show(), redraw() and draw() function of the inner H-Layout to add an alert(). The alert poped when the Tab was clicked the first time - all ok. But if I collapse the sectionstack or hide the whole part of the application and then returned to my previous view, the alert was not triggered again - thats my problem. Can I override an other function or observe something else to get notifyed?

[Isomorphic]

Probably the best place is the tabSelected() event on the TabSet.

[gravityshock]

Thank's for the tip. We are allready using tabSelected in other cases. Its a great function thats works very steadily. But it fires only if the user (or a function) selects the tab, not if we hide/show the parent or parent-parent element.

In the meantime we programed a workaround, even though a canvas-I-Got-Visible-function that can be overwritten or observed would be nicer.