View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0022079||Lazarus||LCL||public||2012-05-19 15:40||2012-05-26 21:20|
|Reporter||Juha Manninen||Assigned To||Juha Manninen|
|Status||closed||Resolution||no change required|
|Product Version||1.1 (SVN)||Product Build|
|Target Version||Fixed in Version|
|Summary||0022079: TCustomEdit OnEnter and OnExit are not always called properly|
|Description||I added DebugLns at r37350 for TCustomControlFilterEdit OnEnter and OnExit event handlers.|
It is a known problem that the FilterEdit components sometimes keep the "(filter)" text when getting focus although the text should be cleared. See the related issue 0021689.
This happens on many widgetsets, at least GTK2 and QT.
The problem became even more visible with a new FilterEdit in Object Inspector.
Now for the first time I can reproduce it systematically!
It looks like OnExit call is first skipped when focus moves from FilterEdit directly to another form, for example to Designer in this case. After that also OnEnter is skipped when entering the FilterEdit next time.
If the focus stays inside one form, Object Inspector in this case, everything works fine.
For example moving between FilterEdit and component TreeView is OK.
|Additional Information||To reproduce:|
- open a form with many controls in Designer.
- make cmd line visible so you can follow output from DebugLn.
- change focus between components FilterEdit in Object Inspector and different controls in Designer, by clicking them.
You will see how FilterEdit still has "(filter)" after getting focus, and how there are events missing before that.
|Tags||No tags attached.|
|Fixed in Revision|
|Widgetset||GTK 2, Win32/Win64, QT|
I disagree about this problem.
1.TCustomEdit and any other controls SHOULD NOT trigger OnExit() when you select another form. When you select another form your TCustomEdit is still ActiveControl of it's parent form. When you activate your form again (eg. click on title), your TCustomEdit will be focused (it was all the time) - and that's fine.
2.If you wan't TCustomEdit to trigger OnExit in this case, then add Form.OnDeactivate handler and check there if your edit is focused, so trigger OnExit() or whatever.
Ok, now I understand the issue even more. When clicking a control in Designer, focus moves away from Object Inspector. Then Designer selects a node in Object Inspector's component tree. Focus moves out of FilterEdit but OnExit is not called, and no OnEnter either when it is clicked again.
I will see what I can do with Form.OnDeactivate.
I agree with Zeljan.
I don't see a relationship to 0019722, though, where the focus moves e.g. between the edit and button control.
I solved it by registering Form Activate and Deactivate handlers in FilterEdit to get info of ActiveControl state.
|2012-05-19 15:40||Juha Manninen||New Issue|
|2012-05-19 15:40||Juha Manninen||LazTarget||=> -|
|2012-05-19 15:40||Juha Manninen||Widgetset||=> GTK 2, Win32/Win64, QT|
|2012-05-19 15:41||Juha Manninen||Relationship added||related to 0021689|
|2012-05-19 15:42||Juha Manninen||Relationship added||related to 0018962|
|2012-05-19 15:42||Juha Manninen||Relationship added||related to 0019722|
|2012-05-19 15:45||Juha Manninen||Relationship added||related to 0017942|
|2012-05-19 16:41||Zeljan Rikalo||Note Added: 0059754|
|2012-05-19 16:58||Juha Manninen||Note Added: 0059759|
|2012-05-19 16:59||Hans-Peter Diettrich||Note Added: 0059760|
|2012-05-19 19:45||Juha Manninen||Status||new => assigned|
|2012-05-19 19:45||Juha Manninen||Assigned To||=> Juha Manninen|
|2012-05-19 20:37||Juha Manninen||Status||assigned => resolved|
|2012-05-19 20:37||Juha Manninen||Resolution||open => no change required|
|2012-05-19 20:37||Juha Manninen||Note Added: 0059767|
|2012-05-26 21:20||Juha Manninen||Status||resolved => closed|
|2012-05-26 21:30||Zeljan Rikalo||Relationship deleted||related to 0017942|