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How do I map key "Super" so, when combined with Left/Right, it produces keycode Home/End?

My current setxkbmap:

setxkbmap \
  -model pc105 \
  -layout 'us(dvorak-intl),us(alt-intl)' \
  -option \
  -option grp:lctrl_lshift_toggle \
  -option compose:rwin
share|improve this question
Just FYI, Gedit honors the gtktextview shortcuts: Ctrl+Shift+PageUp and Ctrl+Shift+PageDown to select (or continue to select) all the way to the beginning and respectively the end of the line. I don't think that's what you're after, though... :) – don_crissti Feb 20 '13 at 12:25
Nope...but thank you. – iokevins Feb 21 '13 at 3:22
I have updated this question so more specific to root of what I want...not just for gedit but as broadly as possible within X. – iokevins Feb 24 '13 at 3:33
Possible other answer: superuser.com/questions/469004/remap-superarrow-key-to-home-end – iokevins Feb 24 '13 at 3:59
up vote 6 down vote accepted

You can't do it with just a setkxbmap option, as no default option does what you want.

But you can do it by defining key behaviour at a lower level.

The page http://madduck.net/docs/extending-xkb/ helped me to understand and find a way to do it.

Create a file ~/.xkb/keymap/mykbd where you put the output of setxkbmap, it will be your base keyboard definition; eg:

setxkbmap -print > ~/.xkb/keymap/mykbd

then we will create a ~/.xkb/types/mytypes and ~/.xkb/symbols/mysymbols files. in the mytypes one put the following:

xkb_types "super_level2" {
    Virtual_modifiers Super;
    type "SUPER_LEVEL2" {
        modifiers= Super;
        map[Super]= Level2;
        level_name[Level1]= "Base";
        level_name[Level2]= "Super";

it defines a type SUPER_LEVEL2 that will allow to easily define symbols sent when a key is pressed with Super.

then, in the mysybols put the following lines:

partial modifier_keys
xkb_symbols "super_arrows_home_end" {
    key <LEFT>  {
        type[Group1] = "SUPER_LEVEL2",
        symbols[Group1] = [    Left,   Home      ]
    key <RGHT>  {
        type[Group1] = "SUPER_LEVEL2",
        symbols[Group1] = [    Right,  End       ]

(note the use of the "SUPER_LEVEL2 type we defined, it means that the second (level 2) symbol on the symbols line is triggered when pressing Super key (instead of Shift key).

now, edit the ~/.xkb/keymap/mykbd file to load the snippets we wrote; in the xkb_types line add "+mytypes(super_level2)", and change the xkb_symbols line to add "+mysymbols(super_arrows_home_end)"

finally, you can load it with xkbcomp -I$HOME/.xkb ~/.xkb/keymap/mykbd $DISPLAY

Now, test your left/right keys, they should work as you wanted. Enjoy.

share|improve this answer
Thank you Pablo – iokevins Feb 25 '13 at 7:08

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