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Merge pull request #14717 from notomo/add-win-call-api

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api: add nvim_win_call
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Björn Linse 2021-06-10 10:02:31 +02:00 committed by GitHub
commit 70a1331dab
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2 changed files with 65 additions and 0 deletions
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37
src/nvim/api/window.c
View File

@ -11,6 +11,7 @@
#include "nvim/api/window.h"
#include "nvim/api/private/defs.h"
#include "nvim/api/private/helpers.h"
#include "nvim/lua/executor.h"
#include "nvim/ex_docmd.h"
#include "nvim/vim.h"
#include "nvim/buffer.h"
@ -524,3 +525,39 @@ void nvim_win_close(Window window, Boolean force, Error *err)
ex_win_close(force, win, tabpage == curtab ? NULL : tabpage);
vim_ignored = try_leave(&tstate, err);
}
/// Calls a function with window as temporary current window.
///
/// @see |win_execute()|
/// @see |nvim_buf_call()|
///
/// @param window Window handle, or 0 for current window
/// @param fun Function to call inside the window (currently lua callable
/// only)
/// @param[out] err Error details, if any
/// @return Return value of function. NB: will deepcopy lua values
/// currently, use upvalues to send lua references in and out.
Object nvim_win_call(Window window, LuaRef fun, Error *err)
FUNC_API_SINCE(7)
FUNC_API_LUA_ONLY
{
win_T *win = find_window_by_handle(window, err);
if (!win) {
return NIL;
}
tabpage_T *tabpage = win_find_tabpage(win);
win_T *save_curwin;
tabpage_T *save_curtab;
try_start();
Object res = OBJECT_INIT;
if (switch_win_noblock(&save_curwin, &save_curtab, win, tabpage, true) ==
OK) {
Array args = ARRAY_DICT_INIT;
res = nlua_call_ref(fun, NULL, args, true, err);
}
restore_win_noblock(save_curwin, save_curtab, true);
try_end(err);
return res;
}

28
test/functional/lua/vim_spec.lua
View File

@ -1931,6 +1931,34 @@ describe('lua stdlib', function()
eq(buf2, val)
end)
end)
describe('vim.api.nvim_win_call', function()
it('can access window options', function()
command('vsplit')
local win1 = meths.get_current_win()
command('wincmd w')
local win2 = exec_lua [[
win2 = vim.api.nvim_get_current_win()
return win2
]]
command('wincmd p')
eq('', meths.win_get_option(win1, 'winhighlight'))
eq('', meths.win_get_option(win2, 'winhighlight'))
local val = exec_lua [[
return vim.api.nvim_win_call(win2, function()
vim.cmd "setlocal winhighlight=Normal:Normal"
return vim.api.nvim_get_current_win()
end)
]]
eq('', meths.win_get_option(win1, 'winhighlight'))
eq('Normal:Normal', meths.win_get_option(win2, 'winhighlight'))
eq(win1, meths.get_current_win())
eq(win2, val)
end)
end)
end)
describe('lua: require("mod") from packages', function()