e705330e40
Closes #37 Almost completely refactored the UI parts outline.nvim to use a Sidebar object that implements an outline window. In init.lua, we can then store a table of the outline for each tabpage ID. When tabs are closed the outline is closed and sidebar reset responsibly. This simplifies `init.lua` quite a lot, making it the highest level control center for the outline elements. All lua APIs and commands should work as before.
85 lines
3.1 KiB
Lua
85 lines
3.1 KiB
Lua
local cfg = require('outline.config')
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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 bufnr integer
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---@field winnr integer
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function View:new()
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return setmetatable({ bufnr = nil, winnr = 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.bufnr = vim.api.nvim_create_buf(false, true)
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-- delete buffer when window is closed / buffer is hidden
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vim.api.nvim_buf_set_option(self.bufnr, 'bufhidden', 'delete')
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-- create a split
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vim.cmd(split_command)
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-- resize to a % of the current window size
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vim.cmd('vertical resize ' .. cfg.get_window_width())
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-- get current (outline) window and attach our buffer to it
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self.winnr = vim.api.nvim_get_current_win()
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vim.api.nvim_win_set_buf(self.winnr, self.bufnr)
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-- window stuff
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vim.api.nvim_win_set_option(self.winnr, 'spell', false)
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vim.api.nvim_win_set_option(self.winnr, 'signcolumn', 'no')
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vim.api.nvim_win_set_option(self.winnr, 'foldcolumn', '0')
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vim.api.nvim_win_set_option(self.winnr, 'number', false)
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vim.api.nvim_win_set_option(self.winnr, 'relativenumber', false)
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vim.api.nvim_win_set_option(self.winnr, 'winfixwidth', true)
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vim.api.nvim_win_set_option(self.winnr, 'list', false)
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vim.api.nvim_win_set_option(self.winnr, 'wrap', cfg.o.outline_window.wrap)
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vim.api.nvim_win_set_option(self.winnr, 'winhl', cfg.o.outline_window.winhl)
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vim.api.nvim_win_set_option(self.winnr, 'linebreak', true) -- only has effect when wrap=true
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vim.api.nvim_win_set_option(self.winnr, '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.winnr, '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.bufnr, 'OUTLINE_'..tostring(tab))
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vim.api.nvim_buf_set_option(self.bufnr, 'filetype', 'Outline')
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vim.api.nvim_buf_set_option(self.bufnr, '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.winnr, '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.winnr, '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.winnr, 'cursorline', true)
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end
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end
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function View:close()
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if self.winnr then
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vim.api.nvim_win_close(self.winnr, true)
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self.winnr = nil
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self.bufnr = nil
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end
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end
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function View:is_open()
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return self.winnr
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and self.bufnr
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and vim.api.nvim_buf_is_valid(self.bufnr)
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and vim.api.nvim_win_is_valid(self.winnr)
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end
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return View
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