102064 - [CBX]Comboboxes cause complete page redraw when clicked

Status: NEW

(Core :: Layout: Form Controls, defect)

Description

[Pierre Saslawsky]

Tested with a carbon build on MacOS 9:
- Set user_pref("nglayout.debug.paint_flashing", true);
- Recompile the View Manager without double-buffering
- Launch the app and open Test8
- Click on a combobox
===> The dropdown list is displayed and then the entire page is redrawn.  It 
happens everytime you click the combobox.

Comment 1

[Simon Paquet [:sipaq]]

This bug is targeted at a Mac classic platform/OS, which is no longer supported
by mozilla.org. Please re-target it to another platform/OS if this bug applies
there as well or resolve this bug.

I will resolve this bug as WONTFIX in four weeks if no action has been taken.
To filter this and similar messages out, please filter for "mac_cla_reorg".

Comment 2

[Simon Paquet [:sipaq]]

This bug hasen't been touched for years and is clearly unowned. Moving back to default assignee/QA so that people, who are watching those can accurately triage this bug.

Also resetting Priority, Target Milestone, Status Whiteboard and Status.

Comment 3

[Boris Zbarsky [:bzbarsky]]

roc, you think this is still happening?

God I wish we had working paint flashing.  :(

Comment 4

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Showing the dropdown causes the entire content window to repaint, although curiously hiding it does not.

> God I wish we had working paint flashing.  :(

http://tlrobinson.net/blog/2008/10/14/improved-browser-paint-events-bookmarklet
Of course we really need that in something like Firebug.

On Mac, the "Quartz Debug" app works just fine as well.