navigator.lua/lua/navigator/dochighlight.lua
2022-09-26 17:35:04 +10:00

294 lines
8.1 KiB
Lua

local util = require('navigator.util')
local log = util.log
local trace = util.trace
local api = vim.api
local references = {}
_NG_hi_list = {}
_NG_current_symbol = ''
_NG_ref_hi_idx = 1
-- extract symbol from cursor
local function get_symbol()
return vim.fn.expand('<cword>')
end
local function add_locs(bufnr, result)
local symbol = get_symbol()
if #result < 1 then
return
end
local winid = vim.fn.bufwinid(0)
symbol =
string.format('%s_%i_%i_%i_%i', symbol, bufnr, result[1].range.start.line, result[1].range.start.character, winid)
if _NG_hi_list[symbol] == nil then
_NG_hi_list[symbol] = { range = {} }
end
if _NG_hi_list[symbol] ~= nil then
trace('already added', symbol)
_NG_hi_list[symbol].range = {}
-- vim.fn.matchdelete(hid)
end
trace('add ', symbol)
_NG_hi_list[symbol].range = result
_NG_current_symbol = symbol
end
local function nohl()
local winid = vim.fn.bufwinid(0)
for key, value in pairs(_NG_hi_list) do
if value.hi_ids ~= nil then
local del = false
for _, v in ipairs(value.hi_ids) do
trace('delete', v)
if v[2] == winid then
del = true
vim.fn.matchdelete(v[1])
end
end
if del then
_NG_hi_list[key].hi_ids = nil
end
end
end
end
-- toggle highlight for current symbol
local function hi_symbol()
local symbol_wd = get_symbol()
local symbol = _NG_current_symbol
if string.find(symbol, symbol_wd) ~= 1 then
vim.lsp.buf.document_highlight()
return vim.defer_fn(function()
hi_symbol()
end, 500)
end
if symbol == nil or symbol == '' then
log('nil symbol')
return
end
_NG_ref_hi_idx = _NG_ref_hi_idx + 1
if _NG_ref_hi_idx > 6 then -- 6 magic number for colors
_NG_ref_hi_idx = 1
end
-- if already highlighted; remove
local range = _NG_hi_list[symbol].range or {}
if _NG_hi_list[symbol].hi_ids ~= nil then
for _, value in ipairs(_NG_hi_list[symbol].hi_ids) do
log('delete', symbol, value)
vim.fn.matchdelete(value[1])
end
_NG_hi_list[symbol].hi_ids = nil
return
end
local cur_pos = vim.fn.getpos('.')
_NG_hi_list[symbol].hi_ids = {}
local totalref = #range
local cmd = string.format('%s/\\<%s\\>//gn', '%s', symbol_wd)
local total_match = 0
local match_result = vim.api.nvim_exec(cmd, true)
local p = match_result:find(' match')
vim.cmd('nohl')
vim.fn.setpos('.', cur_pos)
if p ~= nil then
p = match_result:sub(1, p)
total_match = tonumber(p)
end
local winid = vim.fn.bufwinid(0)
if total_match == totalref then -- same number as matchpos
trace(total_match, 'use matchadd()')
local k = range[1].kind
local hi_name = string.format('NGHiReference_%i_%i', _NG_ref_hi_idx, k)
local m = string.format('\\<%s\\>', symbol_wd)
local r = vim.fn.matchadd(hi_name, m, 20)
trace('hi id', m, hi_name, r)
table.insert(_NG_hi_list[symbol].hi_ids, { r, winid })
--
else
trace(total_match, 'use matchadd()', totalref)
for _, value in ipairs(range) do
local k = value.kind
local l = value.range.start.line + 1
local el = value.range['end'].line + 1
local cs = value.range.start.character + 1
local ecs = value.range['end'].character + 1
if el ~= l and cs == 1 and ecs > 1 then
l = el
end
local w = value.range['end'].character - value.range.start.character
local hi_name = string.format('NGHiReference_%i_%i', _NG_ref_hi_idx, k)
trace(hi_name, { l, cs, w })
local m = vim.fn.matchaddpos(hi_name, { { l, cs, w } }, 10)
table.insert(_NG_hi_list[symbol].hi_ids, { m, winid })
end
end
-- clean the _NG_hi_list
for key, value in pairs(_NG_hi_list) do
if value.hi_ids == nil then
_NG_hi_list[key] = nil
end
end
-- log(_NG_hi_list)
end
-- returns r1 < r2 based on start of range
local function before(r1, r2)
if not r1 or not r2 then
return false
end
if r1.start.line < r2.start.line then
return true
end
if r2.start.line < r1.start.line then
return false
end
if r1.start.character < r2.start.character then
return true
end
return false
end
local handle_document_highlight = function(_, result, ctx)
trace(result, ctx)
if not ctx.bufnr then
log('ducment highlight error', result, ctx)
return
end
if type(result) ~= 'table' or vim.fn.empty(result) == 1 then
vim.lsp.util.buf_clear_references(ctx.bufnr)
return
end
table.sort(result, function(a, b)
return before(a.range, b.range)
end)
references[ctx.bufnr] = result
local client_id = ctx.client_id
vim.lsp.util.buf_highlight_references(ctx.bufnr, result, util.encoding(client_id))
end
-- modify from vim-illuminate
local function goto_adjent_reference(opt)
trace(opt)
opt = vim.tbl_extend('force', { forward = true, wrap = true }, opt or {})
local bufnr = vim.api.nvim_get_current_buf()
local refs = references[bufnr]
if not refs or #refs == 0 then
return nil
end
local next = nil
local nexti = nil
local crow, ccol = unpack(vim.api.nvim_win_get_cursor(0))
local crange = { start = { line = crow - 1, character = ccol } }
for i, ref in ipairs(refs) do
local range = ref.range
if opt.forward then
if before(crange, range) and (not next or before(range, next)) then
next = range
nexti = i
end
else
if before(range, crange) and (not next or before(next, range)) then
next = range
nexti = i
end
log(nexti, next)
end
end
if not next and opt.wrap then
nexti = opt.reverse and #refs or 1
next = refs[nexti].range
end
trace(next)
vim.api.nvim_win_set_cursor(0, { next.start.line + 1, next.start.character })
return next
end
local function cmd_nohl()
local cl = vim.trim(vim.fn.getcmdline())
if #cl > 3 and ('nohlsearch'):match(cl) then
vim.schedule(nohl)
end
end
local nav_doc_hl = function(bufnr)
trace('nav_doc_hl', bufnr)
bufnr = bufnr or vim.api.nvim_get_current_buf()
local ref_params = vim.lsp.util.make_position_params()
vim.lsp.for_each_buffer_client(bufnr, function(client, _, _)
if client.server_capabilities.documentHighlightProvider == true then
trace('sending doc highlight', client.name, bufnr)
client.request('textDocument/documentHighlight', ref_params, handle_document_highlight, bufnr)
end
end)
end
local function documentHighlight(bufnr)
bufnr = bufnr or api.nvim_get_current_buf()
if _NgConfigValues.lsp.document_highlight == true then
local group_name = string.format('%s%d', 'NGHiGroup', bufnr)
local cmd_group = api.nvim_create_augroup(group_name, {})
api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
group = cmd_group,
buffer = bufnr,
desc = 'document highlight',
callback = function()
require('navigator.dochighlight').nav_doc_hl(bufnr)
end,
})
api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
group = cmd_group,
buffer = bufnr,
desc = 'clear document highlight',
callback = function()
vim.lsp.util.buf_clear_references(bufnr)
end,
})
end
vim.lsp.handlers['textDocument/documentHighlight'] = function(err, result, ctx)
local buffer = ctx.bufnr or api.nvim_get_current_buf()
if err then
-- vim.notify('failed to highlight symbol' .. vim.inspect(err), vim.lsp.log_levels.ERROR, vim.lsp.log_levels.ERROR)
log('failed to highlight symbol', err)
return
end
if not result or not result[1] or not result[1]['range'] then
return
end
trace('dochl', result)
if type(result) ~= 'table' then
vim.lsp.util.buf_clear_references(buffer)
return
end
local client_id = ctx.client_id
vim.lsp.util.buf_clear_references(buffer)
vim.lsp.util.buf_highlight_references(buffer, result, util.encoding(client_id))
table.sort(result, function(a, b)
return before(a.range, b.range)
end)
references[buffer] = result
add_locs(buffer, result)
end
end
return {
documentHighlight = documentHighlight,
goto_adjent_reference = goto_adjent_reference,
handle_document_highlight = handle_document_highlight,
hi_symbol = hi_symbol,
nohl = nohl,
nav_doc_hl = nav_doc_hl,
cmd_nohl = cmd_nohl,
}