242 lines
8.3 KiB
Lua
242 lines
8.3 KiB
Lua
local vim = vim
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local parser = require('symbols-outline.parser')
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local ui = require('symbols-outline.ui')
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local writer = require('symbols-outline.writer')
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local config = require('symbols-outline.config')
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local utils = require('symbols-outline.utils.lsp_utils')
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local M = {}
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local function setup_commands()
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vim.cmd("command! " .. "SymbolsOutline " ..
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":lua require'symbols-outline'.toggle_outline()")
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vim.cmd("command! " .. "SymbolsOutlineOpen " ..
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":lua require'symbols-outline'.open_outline()")
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vim.cmd("command! " .. "SymbolsOutlineClose " ..
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":lua require'symbols-outline'.close_outline()")
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end
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local function setup_global_autocmd()
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vim.cmd(
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"au InsertLeave,BufEnter,BufWinEnter,TabEnter,BufWritePost * :lua require('symbols-outline')._refresh()")
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vim.cmd "au BufLeave * lua require'symbols-outline'._prevent_buffer_override()"
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if config.options.auto_preview then
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vim.cmd "au WinEnter * lua require'symbols-outline.preview'.close_if_not_in_outline()"
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end
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if config.options.highlight_hovered_item then
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vim.cmd(
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"autocmd CursorHold * :lua require('symbols-outline')._highlight_current_item()")
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end
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end
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local function setup_buffer_autocmd()
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if config.options.auto_preview then
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vim.cmd(
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"au CursorHold <buffer> lua require'symbols-outline.preview'.show()")
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end
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end
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local function getParams()
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return {textDocument = vim.lsp.util.make_text_document_params()}
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end
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-------------------------
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-- STATE
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-------------------------
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M.state = {
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outline_items = {},
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flattened_outline_items = {},
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outline_win = nil,
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outline_buf = nil,
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code_win = nil
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}
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local function wipe_state()
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M.state = {outline_items = {}, flattened_outline_items = {}}
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end
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function M._refresh()
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if M.state.outline_buf ~= nil then
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vim.lsp.buf_request(0, "textDocument/documentSymbol", getParams(),
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function(_, _, result, client_id)
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if result == nil or type(result) ~= 'table' then return end
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if config.is_client_blacklisted(client_id) then return end
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if not utils.is_buf_attached_to_lsp(vim.api.nvim_get_current_buf()) then
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return
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end
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M.state.code_win = vim.api.nvim_get_current_win()
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M.state.outline_items = parser.parse(result)
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M.state.flattened_outline_items =
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parser.flatten(parser.parse(result))
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writer.parse_and_write(M.state.outline_buf,
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M.state.flattened_outline_items)
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end)
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end
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end
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function M._goto_location(change_focus)
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local current_line = vim.api.nvim_win_get_cursor(M.state.outline_win)[1]
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local node = M.state.flattened_outline_items[current_line]
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vim.api.nvim_win_set_cursor(M.state.code_win,
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{node.line + 1, node.character})
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if change_focus then vim.fn.win_gotoid(M.state.code_win) end
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end
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function M._highlight_current_item()
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if M.state.outline_buf == nil or vim.api.nvim_get_current_buf() ==
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M.state.outline_buf or not utils.is_buf_attached_to_lsp() then return end
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local hovered_line = vim.api.nvim_win_get_cursor(
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vim.api.nvim_get_current_win())[1] - 1
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local nodes = {}
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for index, value in ipairs(M.state.flattened_outline_items) do
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if value.line == hovered_line or
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(hovered_line > value.range_start and hovered_line < value.range_end) then
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value.line_in_outline = index
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table.insert(nodes, value)
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end
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end
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-- clear old highlight
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ui.clear_hover_highlight(M.state.outline_buf)
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for _, value in ipairs(nodes) do
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ui.add_hover_highlight(M.state.outline_buf, value.line_in_outline - 1,
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value.depth * 2)
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vim.api.nvim_win_set_cursor(M.state.outline_win,
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{value.line_in_outline, 1})
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end
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end
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-- credits: https://github.com/kyazdani42/nvim-tree.lua
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function M._prevent_buffer_override()
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vim.schedule(function()
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local curwin = vim.api.nvim_get_current_win()
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local curbuf = vim.api.nvim_win_get_buf(curwin)
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local wins = vim.api.nvim_list_wins()
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if curwin ~= M.state.outline_win or curbuf ~= M.state.outline_buf then
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return
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end
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-- if this is the only window left, return early. Else we won't be able to close the last buffer. #22
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if #wins == 1 and curbuf == M.state.outline_buf then
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return
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end
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vim.cmd("buffer " .. M.state.outline_buf)
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local current_win_width = vim.api.nvim_win_get_width(curwin)
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if #wins < 2 then
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vim.cmd(config.get_split_command())
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vim.cmd("vertical resize " .. math.ceil(current_win_width * 0.75))
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else
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vim.cmd("wincmd " .. config.get_position_navigation_direction())
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end
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vim.cmd("buffer " .. curbuf)
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if #wins < 2 then
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vim.cmd("wincmd r")
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vim.cmd("bprev")
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end
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end)
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end
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local function setup_keymaps(bufnr)
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local function nmap(key, action)
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vim.api.nvim_buf_set_keymap(bufnr, "n", key, action,
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{silent = true, noremap = true})
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end
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-- goto_location of symbol and focus that window
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nmap(config.options.keymaps.goto_location,
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":lua require('symbols-outline')._goto_location(true)<Cr>")
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-- goto_location of symbol but stay in outline
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nmap(config.options.keymaps.focus_location,
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":lua require('symbols-outline')._goto_location(false)<Cr>")
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-- hover symbol
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nmap(config.options.keymaps.hover_symbol,
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":lua require('symbols-outline.hover').show_hover()<Cr>")
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-- rename symbol
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nmap(config.options.keymaps.rename_symbol,
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":lua require('symbols-outline.rename').rename()<Cr>")
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-- code actions
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nmap(config.options.keymaps.code_actions,
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":lua require('symbols-outline.code_action').show_code_actions()<Cr>")
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-- close outline
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nmap(config.options.keymaps.close, ":bw!<Cr>")
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end
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----------------------------
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-- WINDOW AND BUFFER STUFF
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----------------------------
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local function setup_buffer()
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M.state.outline_buf = vim.api.nvim_create_buf(false, true)
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vim.api.nvim_buf_attach(M.state.outline_buf, false,
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{on_detach = function(_, _) wipe_state() end})
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vim.api.nvim_buf_set_option(M.state.outline_buf, "bufhidden", "delete")
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local current_win = vim.api.nvim_get_current_win()
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local current_win_width = vim.api.nvim_win_get_width(current_win)
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vim.cmd(config.get_split_command())
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vim.cmd("vertical resize " .. math.ceil(current_win_width * 0.25))
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M.state.outline_win = vim.api.nvim_get_current_win()
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vim.api.nvim_win_set_buf(M.state.outline_win, M.state.outline_buf)
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setup_keymaps(M.state.outline_buf)
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vim.api.nvim_win_set_option(M.state.outline_win, "number", false)
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vim.api.nvim_win_set_option(M.state.outline_win, "relativenumber", false)
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vim.api.nvim_buf_set_name(M.state.outline_buf, "OUTLINE")
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vim.api.nvim_buf_set_option(M.state.outline_buf, "filetype", "Outline")
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vim.api.nvim_buf_set_option(M.state.outline_buf, "modifiable", false)
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end
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local function handler(_, _, result, client_id)
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if result == nil or type(result) ~= 'table' then return end
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if config.is_client_blacklisted(client_id) then return end
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M.state.code_win = vim.api.nvim_get_current_win()
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setup_buffer()
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setup_buffer_autocmd()
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M.state.outline_items = parser.parse(result)
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M.state.flattened_outline_items = parser.flatten(parser.parse(result))
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writer.parse_and_write(M.state.outline_buf, M.state.flattened_outline_items)
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ui.setup_highlights()
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end
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function M.toggle_outline()
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if M.state.outline_buf == nil then
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vim.lsp.buf_request(0, "textDocument/documentSymbol", getParams(),
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handler)
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else
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vim.api.nvim_win_close(M.state.outline_win, true)
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end
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end
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function M.open_outline()
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if M.state.outline_buf == nil then
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vim.lsp.buf_request(0, "textDocument/documentSymbol", getParams(),
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handler)
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end
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end
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function M.close_outline()
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if M.state.outline_buf ~= nil then
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vim.api.nvim_win_close(M.state.outline_win, true)
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end
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end
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function M.setup(opts)
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config.setup(opts)
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setup_commands()
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setup_global_autocmd()
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end
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return M
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