OnKeyDown event triggered twice

[invy]

OnKeyDown event is triggered twice, which causes cursor to jump over files and menu entries.

OnKeyDown: 0 13d
OnKeyDown: 0 13d
OnChar: 0 13d
OnKeyUp: 0 13d
OnKeyDown: 0 13d
OnKeyDown: 0 13d
OnChar: 0 13d
OnKeyUp: 0 13d
OnKeyDown: 0 13b
OnKeyDown: 0 13b
OnChar: 0 13b
OnKeyUp: 0 13b
OnKeyDown: 0 13b
OnKeyDown: 0 13b
OnChar: 0 13b
OnKeyUp: 0 13b

and so on.

[invy]

Ubuntu 16.04
Gnome 3.18.5
wxwidgets version: 3.0.2+dfsg-1.3

ldd far2l
linux-vdso.so.1 => (0x00007fff18ff2000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f0515d20000)
libwx_gtk2u_core-3.0.so.0 => /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0 (0x00007f05154a7000)
libwx_baseu-3.0.so.0 => /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 (0x00007f0515014000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f0514c92000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f0514989000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f0514772000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f0514555000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f051418c000)
/lib64/ld-linux-x86-64.so.2 (0x0000560aac661000)
libgtk-x11-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 (0x00007f0513b40000)
libgdk-x11-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 (0x00007f051388b000)
libpangocairo-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 (0x00007f051367e000)
libcairo.so.2 => /usr/lib/x86_64-linux-gnu/libcairo.so.2 (0x00007f0513369000)
libgdk_pixbuf-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0 (0x00007f0513147000)
libpango-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007f0512efb000)
libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f0512ca7000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f0512996000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f051265c000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f0512455000)
libSM.so.6 => /usr/lib/x86_64-linux-gnu/libSM.so.6 (0x00007f051224d000)
libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f0512028000)
libjpeg.so.8 => /usr/lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007f0511dce000)
libtiff.so.5 => /usr/lib/x86_64-linux-gnu/libtiff.so.5 (0x00007f0511b5b000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f0511941000)
libgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007f051173c000)
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f0511536000)
libatk-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libatk-1.0.so.0 (0x00007f0511310000)
libgio-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007f0510f88000)
libpangoft2-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 (0x00007f0510d72000)
libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f0510b2e000)
libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f0510924000)
libXinerama.so.1 => /usr/lib/x86_64-linux-gnu/libXinerama.so.1 (0x00007f0510720000)
libXi.so.6 => /usr/lib/x86_64-linux-gnu/libXi.so.6 (0x00007f0510510000)
libXrandr.so.2 => /usr/lib/x86_64-linux-gnu/libXrandr.so.2 (0x00007f0510305000)
libXcursor.so.1 => /usr/lib/x86_64-linux-gnu/libXcursor.so.1 (0x00007f05100fb000)
libXcomposite.so.1 => /usr/lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007f050fef7000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f050fcf4000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f050fae2000)
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f050f837000)
libpixman-1.so.0 => /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x00007f050f58f000)
libxcb-shm.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007f050f38a000)
libxcb-render.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007f050f180000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f050ef5e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f050ed55000)
libthai.so.0 => /usr/lib/x86_64-linux-gnu/libthai.so.0 (0x00007f050eb4c000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f050e943000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f050e6d3000)
libICE.so.6 => /usr/lib/x86_64-linux-gnu/libICE.so.6 (0x00007f050e4b9000)
libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f050e2b3000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f050e091000)
libjbig.so.0 => /usr/lib/x86_64-linux-gnu/libjbig.so.0 (0x00007f050de83000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f050dc60000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f050da45000)
libharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007f050d7e6000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f050d5bd000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f050d3b8000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f050d1b2000)
libdatrie.so.1 => /usr/lib/x86_64-linux-gnu/libdatrie.so.1 (0x00007f050cfaa000)
libgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007f050cd84000

[elfmz]

interesting that i'm using approx same config without any problems) anyway I've commited some blind fix - please check if it improved situation..

[invy]

Nope, it didn't solve the problem.

OnKeyDown: 0 13d 0
OnKeyDown: 0 13d 0
OnChar: 0 13d 0
OnKeyUp: 0 13d 0
OnKeyDown: 0 13b 0
OnKeyDown: 0 13b 0
OnChar: 0 13b 0
OnKeyUp: 0 13b 0

[elfmz]

please add event.GetTimestamp() and see if duplicate keydowns have it same or not:

void WinPortPanel::OnKeyDown( wxKeyEvent& event )
{
        fprintf(stderr, "OnKeyDown: %x %x %u %lu\n",
                event.GetUnicodeKey(), event.GetKeyCode(), event.GetSkipped(), event.GetTimestamp());

[invy]

OnKeyDown: 0 13b 0 27936778
OnKeyDown: 0 13b 0 27936778
OnChar: 0 13b 0
OnKeyUp: 0 13b 0
OnKeyDown: 0 13d 0 27937214
OnKeyDown: 0 13d 0 27937214
OnChar: 0 13d 0
OnKeyUp: 0 13d 0

[elfmz]

check now

[invy]

Well, the cursor of course is not jumping over items now, that's an improvement. However every other key (enter, esc, letters) is now needed to be pressed twice to have an effect.

[elfmz]

Funny, curse of double-ESC from ncurses reached me :)
So I want to see output from other keys too. Did they work correctly before this change however?

[invy]

The alpha-numerical input worked fine (I think, because it's being taken from OnChar event), escape and enter also did work fine. Only the arrow keys were problematic.

Here is trace of last lifecycle:
far2l_lc.txt

It's also interesting, that it's not every time I need to press esc/enter twice. The numpad enter works fine from the the start on, until I press 'normal' enter.

[invy]

I've made further investigation. It seams, that the described behavior somehow depends on profile settings. (I've created another and tested far2l, there were no double OnKeyDown events).

[elfmz]

may be you have some software that may interfere with keyboard input? Or some gnome extension.

[invy]

Well here is a minor breakthrough. The only software I could think of, which could interfere with the input was ibus. A wild guess of killing ibus-x11 process running from my user gave positive results. I receive no more duplicate events.

[elfmz]

I'm also have IBus and Russian/English layout and no repro
However I've just did another change there, check it please..

[invy]

The last fix seams to fix the problem.

[elfmz]

closing