Focus bug switching panel

vfloyd · Post by *vfloyd » 2013-12-19, 10:42 UTC

Hello,

I use total commander 8.5 with plugin synwrite 6.1.185.

My problem is that when I run internal Lister (F3) with synwrite plugin, I can't switch focus to it while the lexer of synwrite is working. When the file is totally loaded it works. For big files it may take many seconds.

You could tell me that it's normal because synwrite is busy. But no. The "bug" occurs only if I want to switch panel focus using tab key. If I click with the mouse on the lister panel, the focus is set on it and I can navigate in the file normaly even if it is not completly loaded.

Sorry for my english, tell me if something is not clear.

Post by *ghisler(Author) » 2013-12-19, 14:30 UTC

Unfortunately most lister plugins are not thread-safe, so TC tells them in the foreground thread to load the file. If the plugin then starts its own message loop, some TC functions like handling Tab do not work because they are handled in the main message loop (tab is special because Windows would intercept it before it reaches the dialog to switch between controls, so it has to be handled before).

Therefore there is unfortunately nothing I can do, sorry.

Btw, is this problem specific to TC 8.5? I'm not aware of any changes since TC8.

vfloyd · Post by *vfloyd » 2013-12-19, 15:41 UTC

Thank for your answer. No the problem is the same in tc8 and tc8.5. Sorry if I didn't post at the right place. I will report this bug to synwrite developpers.

Alextp · Post by *Alextp » 2013-12-19, 16:07 UTC

Hi. It's not a bug really. It's issue of TC plugins api.

vfloyd · Post by *vfloyd » 2013-12-19, 16:15 UTC

Ok sorry maybe I didn't completly understood Ghisler's answer. he told there was nothing he could do. But if the bug is in the TC API, who can correct it if not you :p

Alextp · Post by *Alextp » 2013-12-19, 16:17 UTC

Ghisler can't easily "fix" it. it's big work

vfloyd · Post by *vfloyd » 2013-12-19, 16:26 UTC

Ah ok I understand. It's unfortunate.

MarcinW · Post by *MarcinW » 2013-12-22, 15:12 UTC

Some long-term idea: plugins could notice TC somehow (for example by exporting some function) that they are able to perform some operations asynchronously.

vfloyd · Post by *vfloyd » 2013-12-27, 14:03 UTC

And waiting a deeper refactoring would it be possible to generate a left-click mouse event in the panel when tab key is pressed ?