135 lines
4.7 KiB
Lua
135 lines
4.7 KiB
Lua
local cfg = require('outline.config')
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local highlight = require('outline.highlight')
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---@class outline.View
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local View = {}
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---@class outline.View
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---@field buf integer
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---@field win integer
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function View:new()
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return setmetatable({ buf = nil, win = nil }, { __index = View })
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end
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---Creates the outline window and sets it up
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---@param split_command string A valid split command that is to be executed in order to create the view.
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function View:setup_view(split_command)
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-- create a scratch unlisted buffer
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self.buf = vim.api.nvim_create_buf(false, true)
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-- set filetype
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vim.api.nvim_buf_set_option(self.buf, 'filetype', 'Outline')
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-- delete buffer when window is closed / buffer is hidden
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vim.api.nvim_buf_set_option(self.buf, 'bufhidden', 'delete')
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-- create a split
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vim.cmd(split_command)
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-- get current (outline) window and attach our buffer to it
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self.win = vim.api.nvim_get_current_win()
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vim.api.nvim_win_set_buf(self.win, self.buf)
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-- resize if split_command not specify width like "25vsplit"
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if split_command:match("%d+") == nil then
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-- resize to a % of the current window size
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vim.cmd('vertical resize ' .. cfg.o.outline_window.width)
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end
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-- window stuff
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vim.api.nvim_win_set_option(self.win, 'spell', false)
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vim.api.nvim_win_set_option(self.win, 'signcolumn', 'no')
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vim.api.nvim_win_set_option(self.win, 'foldcolumn', '0')
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vim.api.nvim_win_set_option(self.win, 'number', false)
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vim.api.nvim_win_set_option(self.win, 'relativenumber', false)
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vim.api.nvim_win_set_option(self.win, 'winfixwidth', true)
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vim.api.nvim_win_set_option(self.win, 'list', false)
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vim.api.nvim_win_set_option(self.win, 'wrap', cfg.o.outline_window.wrap)
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vim.api.nvim_win_set_option(self.win, 'winhl', cfg.o.outline_window.winhl)
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vim.api.nvim_win_set_option(self.win, 'linebreak', true) -- only has effect when wrap=true
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vim.api.nvim_win_set_option(self.win, 'breakindent', true) -- only has effect when wrap=true
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-- Would be nice to use guides.markers.vertical as part of showbreak to keep
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-- continuity of the tree UI, but there's currently no way to style the
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-- color, apart from globally overriding hl-NonText, which will potentially
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-- mess with other theme/user settings. So just use empty spaces for now.
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vim.api.nvim_win_set_option(self.win, 'showbreak', ' ') -- only has effect when wrap=true.
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-- buffer stuff
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local tab = vim.api.nvim_get_current_tabpage()
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vim.api.nvim_buf_set_name(self.buf, 'OUTLINE_' .. tostring(tab))
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vim.api.nvim_buf_set_option(self.buf, 'modifiable', false)
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if cfg.o.outline_window.show_numbers or cfg.o.outline_window.show_relative_numbers then
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vim.api.nvim_win_set_option(self.win, 'nu', true)
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end
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if cfg.o.outline_window.show_relative_numbers then
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vim.api.nvim_win_set_option(self.win, 'rnu', true)
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end
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local cl = cfg.o.outline_window.show_cursorline
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if cl == true or cl == 'focus_in_outline' then
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vim.api.nvim_win_set_option(self.win, 'cursorline', true)
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end
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end
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---Close view window and remove winnr/bufnr fields
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function View:close()
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if self.win then
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vim.api.nvim_win_close(self.win, true)
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self.win = nil
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self.buf = nil
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end
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end
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---Return whether view has valid buf and win numbers
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function View:is_open()
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return self.win
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and self.buf
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and vim.api.nvim_buf_is_valid(self.buf)
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and vim.api.nvim_win_is_valid(self.win)
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end
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---Replace all lines in buffer with given new `lines`
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---@param lines string[]
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function View:rewrite_lines(lines)
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vim.api.nvim_buf_set_option(self.buf, 'modifiable', true)
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vim.api.nvim_buf_set_lines(self.buf, 0, -1, false, lines)
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vim.api.nvim_buf_set_option(self.buf, 'modifiable', false)
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end
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function View:clear_all_ns()
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highlight.clear_all_ns(self.buf)
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end
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---Ensure all existing highlights are already cleared before calling!
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---@param hl outline.HL[]
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---@param nodes outline.FlatSymbol[]
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---@param details string[]
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---@param linenos string[]
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function View:add_hl_and_ns(hl, nodes, details, linenos)
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highlight.items(self.buf, hl)
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if cfg.o.outline_items.highlight_hovered_item then
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highlight.hovers(self.buf, nodes)
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end
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if cfg.o.outline_items.show_symbol_details then
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highlight.details(self.buf, details)
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end
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-- Note on hl_mode:
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-- When hide_cursor + cursorline enabled, we want the lineno to also take on
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-- the cursorline background so wherever the cursor is, it appears blended.
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-- We want 'replace' even for `hide_cursor=false cursorline=true` because
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-- vim's native line numbers do not get highlighted by cursorline.
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if cfg.o.outline_items.show_symbol_lineno then
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-- stylua: ignore start
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highlight.linenos(
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self.buf, linenos,
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(cfg.o.outline_window.hide_cursor and 'combine') or 'replace'
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)
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-- stylua: ignore end
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end
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end
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return View
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