How to toggle the colour highlighting on / off? about vim-css-color

[ap]

Sounds reasonable, but I’ll have to think about whether it’s feasible.

The fundamental issue is that vim-css-color (mostly¹) isn’t doing the colouring, Vim’s syntax highlight engine is. What vim-css-color does is look for colour names in the file and set up highlight rules for them, so that you don’t have to have all 24 million RGB colours predefined in the colour scheme, along with every possible syntax to write any one of these colours. But once a highlight rule is set up, it becomes part of Vim’s syntax highlighting; vim-css-color is no longer involved.

So to toggle the colours is more work than just pausing vim-css-color. Toggling them off will require actively removing the highlights and toggling them back on means those have to be restored. And Vim doesn’t make it terribly nice to modify the highlight rules at runtime. (The ugliest part of vim-css-color is the part that sets those up.) I’ll have to think of some trick to make this work reliably without adding a lot of code.

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¹ If you have cursorline and/or cursorcolumn set, it does override colours for the current line and/or column, respectively.

[airblade]

Just about the only thing I know about working with highlights in Vim is that it's non-trivial. If in the unlikely event I come up with a trick to do this, I'll let you know.

[chemzqm]

I've got a work around to make vim-css-color works with large css files, since it's can't be toggled, I just disabled the color highlight by remove the file css.vim, and made a comand Color to enable the highlight, code like this:

command! -nargs=0 Color    :call s:HighlightColor()
function! s:HighlightColor()
  if &ft =~# '\v(css|html)'
    call css_color#init('css', 'extended', 'cssMediaBlock,cssFunction,cssDefinition,cssAttrRegion,cssComment')
  endif
  redraw
endfunction

I also have the line

syntax sync minlines=200

In my .vimrc to improve the highlight speed.

[ap]

Actually this was waaaaaay easier than I thought it was going to be. D’uh!

So now you can :call css_color#toggle() to turn it on and off in a buffer. Of course you can bind that to some mapping.

Sorry it took so long until my flash of the blinding obvious! 😄 Share and enjoy.

[airblade]

Thanks!