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feat(extmark): stack multiple highlight groups in hl_group

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This has been possible in the "backend" for a while but
API was missing.

Followup: we will need a `details2=true` mode for `nvim_get_hl_id_by_name`
to return information in a way forward compatible with even further
enhancements.
This commit is contained in:
bfredl
2025-01-17 13:44:07 +01:00
parent 5dd60e01ac
commit 4cced601c8
7 changed files with 97 additions and 4 deletions
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43
test/functional/ui/decorations_spec.lua
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@@ -834,6 +834,9 @@ describe('extmark decorations', function()
[42] = {undercurl = true, special = Screen.colors.Red};
[43] = {background = Screen.colors.Yellow, undercurl = true, special = Screen.colors.Red};
[44] = {background = Screen.colors.LightMagenta};
[45] = { background = Screen.colors.Red, special = Screen.colors.Red, foreground = Screen.colors.Red };
[46] = { background = Screen.colors.Blue, foreground = Screen.colors.Blue, special = Screen.colors.Red };
[47] = { background = Screen.colors.Green, foreground = Screen.colors.Blue, special = Screen.colors.Red };
}
ns = api.nvim_create_namespace 'test'
@@ -1924,6 +1927,46 @@ describe('extmark decorations', function()
]]}
end)
it('highlight can combine multiple groups', function()
screen:try_resize(50, 3)
command('hi Group1 guibg=Red guifg=Red guisp=Red')
command('hi Group2 guibg=Blue guifg=Blue')
command('hi Group3 guibg=Green')
insert([[example text]])
api.nvim_buf_set_extmark(0, ns, 0, 0, { end_row=1, hl_group = {} })
screen:expect([[
example tex^t |
{1:~ }|
|
]])
api.nvim_buf_clear_namespace(0, ns, 0, -1)
api.nvim_buf_set_extmark(0, ns, 0, 0, { end_row=1, hl_group = {'Group1'} })
screen:expect([[
{45:example tex^t} |
{1:~ }|
|
]])
api.nvim_buf_clear_namespace(0, ns, 0, -1)
api.nvim_buf_set_extmark(0, ns, 0, 0, { end_row = 1, hl_group = {'Group1', 'Group2'} })
screen:expect([[
{46:example tex^t} |
{1:~ }|
|
]])
api.nvim_buf_clear_namespace(0, ns, 0, -1)
api.nvim_buf_set_extmark(0, ns, 0, 0, { end_row = 1, hl_group = {'Group1', 'Group2', 'Group3'}, hl_eol=true })
screen:expect([[
{47:example tex^t }|
{1:~ }|
|
]])
eq('Invalid hl_group: hl_group item',
pcall_err(api.nvim_buf_set_extmark, 0, ns, 0, 0, { end_row = 1, hl_group = {'Group1', 'Group2', {'fail'}}, hl_eol=true }))
end)
it('highlight works after TAB with sidescroll #14201', function()
screen:try_resize(50, 3)
command('set nowrap')