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Merge pull request #18776 from famiu/fix/winbar_noroom

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fix(winbar): only allow adding winbar when there is space
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bfredl 2022-05-28 12:18:04 +02:00 committed by GitHub
commit 0dd3798dbb
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2 changed files with 115 additions and 8 deletions
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60
src/nvim/window.c
View File

@ -6620,17 +6620,15 @@ static void win_remove_status_line(win_T *wp, bool add_hsep)
wp->w_status_click_defs = NULL;
}
// Look for resizable frames and take lines from them to make room for the statusline
static void resize_frame_for_status(frame_T *fr)
// Look for a horizontally resizable frame, starting with frame "fr".
// Returns NULL if there are no resizable frames.
static frame_T *find_horizontally_resizable_frame(frame_T *fr)
{
// Find a frame to take a line from.
frame_T *fp = fr;
win_T *wp = fr->fr_win;
while (fp->fr_height <= frame_minheight(fp, NULL)) {
if (fp == topframe) {
emsg(_(e_noroom));
return;
return NULL;
}
// In a column of frames: go to frame above. If already at
// the top or in a row of frames: go to parent.
@ -6640,13 +6638,49 @@ static void resize_frame_for_status(frame_T *fr)
fp = fp->fr_parent;
}
}
if (fp != fr) {
return fp;
}
// Look for resizable frames and take lines from them to make room for the statusline.
// @return Success or failure.
static bool resize_frame_for_status(frame_T *fr)
{
win_T *wp = fr->fr_win;
frame_T *fp = find_horizontally_resizable_frame(fr);
if (fp == NULL) {
emsg(_(e_noroom));
return false;
} else if (fp != fr) {
frame_new_height(fp, fp->fr_height - 1, false, false);
frame_fix_height(wp);
(void)win_comp_pos();
} else {
win_new_height(wp, wp->w_height - 1);
}
return true;
}
// Look for resizable frames and take lines from them to make room for the winbar.
// @return Success or failure.
static bool resize_frame_for_winbar(frame_T *fr)
{
win_T *wp = fr->fr_win;
frame_T *fp = find_horizontally_resizable_frame(fr);
if (fp == NULL || fp == fr) {
emsg(_(e_noroom));
return false;
} else {
frame_new_height(fp, fp->fr_height - 1, false, false);
win_new_height(wp, wp->w_height + 1);
frame_fix_height(wp);
win_comp_pos();
}
return true;
}
static void last_status_rec(frame_T *fr, bool statusline, bool is_stl_global)
@ -6664,7 +6698,9 @@ static void last_status_rec(frame_T *fr, bool statusline, bool is_stl_global)
} else if (wp->w_status_height == 0 && !is_stl_global && statusline) {
// Add statusline to window if needed
wp->w_status_height = STATUS_HEIGHT;
resize_frame_for_status(fr);
if (!resize_frame_for_status(fr)) {
return;
}
comp_col();
}
} else if (wp->w_status_height != 0 && is_stl_global) {
@ -6695,6 +6731,14 @@ void set_winbar(void)
: ((*p_wbr != NUL || *wp->w_p_wbr != NUL) ? 1 : 0);
if (wp->w_winbar_height != winbar_height) {
if (winbar_height == 1 && wp->w_height_inner <= 1) {
if (wp->w_floating) {
emsg(_(e_noroom));
continue;
} else if (!resize_frame_for_winbar(wp->w_frame)) {
return;
}
}
wp->w_winbar_height = winbar_height;
win_set_inner_size(wp);
wp->w_redr_status = wp->w_redr_status || winbar_height;

63
test/functional/ui/winbar_spec.lua
View File

@ -7,6 +7,7 @@ local meths = helpers.meths
local eq = helpers.eq
local poke_eventloop = helpers.poke_eventloop
local feed = helpers.feed
local pcall_err = helpers.pcall_err
describe('winbar', function()
local screen
@ -28,6 +29,7 @@ describe('winbar', function()
})
meths.set_option('winbar', 'Set Up The Bars')
end)
it('works', function()
screen:expect([[
{1:Set Up The Bars }|
@ -45,6 +47,7 @@ describe('winbar', function()
|
]])
end)
it('works with custom \'fillchars\' value', function()
command('set fillchars=wbr:+')
screen:expect([[
@ -63,6 +66,7 @@ describe('winbar', function()
|
]])
end)
it('works with custom highlight', function()
command('hi WinBar guifg=red')
screen:expect([[
@ -81,6 +85,7 @@ describe('winbar', function()
|
]])
end)
it('works with splits', function()
command('hi WinBar guifg=red')
command('hi WinBarNC guifg=blue')
@ -101,6 +106,7 @@ describe('winbar', function()
|
]])
end)
it('works when switching value of \'winbar\'', function()
command('belowright vsplit | split | split | set winbar=')
screen:expect([[
@ -151,6 +157,7 @@ describe('winbar', function()
|
]])
end)
it('can be ruler', function()
insert [[
just some
@ -204,6 +211,7 @@ describe('winbar', function()
|
]]}
end)
it('works with laststatus=3', function()
command('set laststatus=3')
screen:expect([[
@ -495,4 +503,59 @@ describe('winbar', function()
|
]])
end)
it('properly resizes window when there is no space in it', function()
command('set winbar= | 1split')
screen:expect([[
^ |
{4:[No Name] }|
|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{2:[No Name] }|
|
]])
command('set winbar=a')
screen:expect([[
{1:a }|
^ |
{4:[No Name] }|
{1:a }|
|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{3:~ }|
{2:[No Name] }|
|
]])
end)
it('cannot be added unless there is room', function()
command('set winbar= | split | split | split | split | split')
screen:expect([[
^ |
{4:[No Name] }|
|
{2:[No Name] }|
|
{2:[No Name] }|
|
{2:[No Name] }|
|
{2:[No Name] }|
|
{2:[No Name] }|
|
]])
eq('Vim(set):E36: Not enough room', pcall_err(command, 'set winbar=test'))
end)
end)