spacevim/bundle/neo-tree.nvim/lua/neo-tree/sources/common/help.lua
JIe 2bb7059579
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init
2024-08-21 14:17:26 +08:00

94 lines
2.5 KiB
Lua

local Popup = require("nui.popup")
local NuiLine = require("nui.line")
local utils = require("neo-tree.utils")
local popups = require("neo-tree.ui.popups")
local highlights = require("neo-tree.ui.highlights")
local M = {}
local add_text = function(text, highlight)
local line = NuiLine()
line:append(text, highlight)
return line
end
M.show = function(state)
local tree_width = vim.api.nvim_win_get_width(state.winid)
local keys = utils.get_keys(state.resolved_mappings, true)
local lines = { add_text("") }
lines[1] = add_text(" Press the corresponding key to execute the command.", "Comment")
lines[2] = add_text(" Press <Esc> to cancel.", "Comment")
lines[3] = add_text("")
local header = NuiLine()
header:append(string.format(" %14s", "KEY(S)"), highlights.ROOT_NAME)
header:append(" ", highlights.DIM_TEXT)
header:append("COMMAND", highlights.ROOT_NAME)
lines[4] = header
local max_width = #lines[1]:content()
for _, key in ipairs(keys) do
local value = state.resolved_mappings[key]
local nline = NuiLine()
nline:append(string.format(" %14s", key), highlights.FILTER_TERM)
nline:append(" -> ", highlights.DIM_TEXT)
nline:append(value.text, highlights.NORMAL)
local line = nline:content()
if #line > max_width then
max_width = #line
end
table.insert(lines, nline)
end
local width = math.min(60, max_width + 1)
if state.current_position == "right" then
col = vim.o.columns - tree_width - width - 1
else
col = tree_width - 1
end
local options = {
position = {
row = 2,
col = col,
},
size = {
width = width,
height = #keys + 5,
},
enter = true,
focusable = true,
zindex = 50,
relative = "editor",
}
local options = popups.popup_options("Neotree Help", width, options)
local popup = Popup(options)
popup:mount()
popup:map("n", "<esc>", function()
popup:unmount()
end, { noremap = true })
local event = require("nui.utils.autocmd").event
popup:on({ event.BufLeave, event.BufDelete }, function()
popup:unmount()
end, { once = true })
for _, key in ipairs(keys) do
-- map everything except for <escape>
if string.match(key:lower(), "^<esc") == nil then
local value = state.resolved_mappings[key]
popup:map("n", key, function()
popup:unmount()
vim.api.nvim_set_current_win(state.winid)
value.handler()
end)
end
end
for i, line in ipairs(lines) do
line:render(popup.bufnr, -1, i)
end
end
return M