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Bug 353204

Summary:	[Table] Hover effect on items with Rich-Text content has glitches
Product:	[RT] RAP	Reporter:	Tim Buschtoens <tbuschto>
Component:	RWT	Assignee:	Project Inbox <rap-inbox>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	tbuschto
Version:	1.5
Target Milestone:	1.5 M1
Hardware:	All
OS:	All
Whiteboard:
Bug Depends on:
Bug Blocks:	346768

Description Tim Buschtoens

2011-07-27 09:35:52 EDT

There are several problem with the Table/Trees hover effect:
1. Its very slow in IE
2. Its flickering during mouse movement is Firefox/Webkit
With RichtText cell-content it also:
3. Prevents mouse-selection in Webkit (works when hover is disabled)
4. Hover-state of the first row is stuck when mouse leaves table at the top.

See also Bug 351116 and Bug 346768.

Comment 1 Tim Buschtoens

2011-07-28 04:52:11 EDT

So the Flickering is also just with Rich Text.

Apparently with Rich Text the hover-effect is rendered on EVERY mouse-move in
IE and Webkit, and in Firefox even if if the mouse is not moved, just hovering
the cell. Without Rich Text however its not rendered as much, the bad
performance in this case can only improved by optimizing rendering, which can
be another bug. This one will only about hover-issues with Rich-Text content.

Comment 2 Tim Buschtoens

2011-07-29 11:00:07 EDT

Fixe in CVS HEAD.

A number of changes (mostly in TreeRowContainer):
- hover-effects are rendered asynchrounously (in a timeout)
- mouseover events are checked to target a different item 
- elementOver events are checked to target a different type of element