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pickers.lua
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pickers.lua
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local a = vim.api
local popup = require('popup')
local async_lib = require('plenary.async_lib')
local async_util = async_lib.util
local async = async_lib.async
local await = async_lib.await
local channel = async_util.channel
require('telescope')
local actions = require('telescope.actions')
local action_set = require('telescope.actions.set')
local config = require('telescope.config')
local debounce = require('telescope.debounce')
local log = require('telescope.log')
local mappings = require('telescope.mappings')
local state = require('telescope.state')
local utils = require('telescope.utils')
local entry_display = require('telescope.pickers.entry_display')
local p_highlighter = require('telescope.pickers.highlights')
local p_scroller = require('telescope.pickers.scroller')
local p_window = require('telescope.pickers.window')
local EntryManager = require('telescope.entry_manager')
local MultiSelect = require('telescope.pickers.multi')
local get_default = utils.get_default
local ns_telescope_matching = a.nvim_create_namespace('telescope_matching')
local ns_telescope_prompt = a.nvim_create_namespace('telescope_prompt')
local ns_telescope_prompt_prefix = a.nvim_create_namespace('telescope_prompt_prefix')
local pickers = {}
-- TODO: Add overscroll option for results buffer
--- Picker is the main UI that shows up to interact w/ your results.
-- Takes a filter & a previewr
local Picker = {}
Picker.__index = Picker
--- Create new picker
function Picker:new(opts)
opts = opts or {}
if opts.layout_strategy and opts.get_window_options then
error("layout_strategy and get_window_options are not compatible keys")
end
-- Reset actions for any replaced / enhanced actions.
-- TODO: Think about how we could remember to NOT have to do this...
-- I almost forgot once already, cause I'm not smart enough to always do it.
actions._clear()
action_set._clear()
local layout_strategy = get_default(opts.layout_strategy, config.values.layout_strategy)
local obj = setmetatable({
prompt_title = get_default(opts.prompt_title, "Prompt"),
results_title = get_default(opts.results_title, "Results"),
preview_title = get_default(opts.preview_title, "Preview"),
prompt_prefix = get_default(opts.prompt_prefix, config.values.prompt_prefix),
selection_caret = get_default(opts.selection_caret, config.values.selection_caret),
entry_prefix = get_default(opts.entry_prefix, config.values.entry_prefix),
initial_mode = get_default(opts.initial_mode, config.values.initial_mode),
default_text = opts.default_text,
get_status_text = get_default(opts.get_status_text, config.values.get_status_text),
_on_input_filter_cb = opts.on_input_filter_cb or function() end,
finder = opts.finder,
sorter = opts.sorter or require('telescope.sorters').empty(),
previewer = opts.previewer,
default_selection_index = opts.default_selection_index,
cwd = opts.cwd,
_find_id = 0,
_completion_callbacks = {},
_multi = MultiSelect:new(),
track = get_default(opts.track, false),
stats = {},
attach_mappings = opts.attach_mappings,
file_ignore_patterns = get_default(opts.file_ignore_patterns, config.values.file_ignore_patterns),
sorting_strategy = get_default(opts.sorting_strategy, config.values.sorting_strategy),
selection_strategy = get_default(opts.selection_strategy, config.values.selection_strategy),
layout_strategy = layout_strategy,
layout_config = get_default(
opts.layout_config,
(config.values.layout_defaults or {})[layout_strategy]
) or {},
window = {
-- TODO: This won't account for different layouts...
-- TODO: If it's between 0 and 1, it's a percetnage.
-- TODO: If its's a single number, it's always that many columsn
-- TODO: If it's a list, of length 2, then it's a range of min to max?
height = get_default(opts.height, 0.8),
width = get_default(opts.width, config.values.width),
get_preview_width = get_default(opts.preview_width, config.values.get_preview_width),
results_width = get_default(opts.results_width, config.values.results_width),
results_height = get_default(opts.results_height, config.values.results_height),
winblend = get_default(opts.winblend, config.values.winblend),
prompt_position = get_default(opts.prompt_position, config.values.prompt_position),
-- Border config
border = get_default(opts.border, config.values.border),
borderchars = get_default(opts.borderchars, config.values.borderchars),
},
preview_cutoff = get_default(opts.preview_cutoff, config.values.preview_cutoff),
}, self)
obj.get_window_options = opts.get_window_options or p_window.get_window_options
-- TODO: It's annoying that this is create and everything else is "new"
obj.scroller = p_scroller.create(
get_default(opts.scroll_strategy, config.values.scroll_strategy),
obj.sorting_strategy
)
obj.highlighter = p_highlighter.new(obj)
if opts.on_complete then
for _, on_complete_item in ipairs(opts.on_complete) do
obj:register_completion_callback(on_complete_item)
end
end
return obj
end
--- Take a row and get an index.
---@note: Rows are 0-indexed, and `index` is 1 indexed (table index)
---@param index number: The row being displayed
---@return number The row for the picker to display in
function Picker:get_row(index)
if self.sorting_strategy == 'ascending' then
return index - 1
else
return self.max_results - index
end
end
--- Take a row and get an index
---@note: Rows are 0-indexed, and `index` is 1 indexed (table index)
---@param row number: The row being displayed
---@return number The index in line_manager
function Picker:get_index(row)
if self.sorting_strategy == 'ascending' then
return row + 1
else
return self.max_results - row
end
end
function Picker:get_reset_row()
if self.sorting_strategy == 'ascending' then
return 0
else
return self.max_results - 1
end
end
function Picker:is_done()
if not self.manager then return true end
end
function Picker:clear_extra_rows(results_bufnr)
if self:is_done() then
log.trace("Not clearing due to being already complete")
return
end
if not vim.api.nvim_buf_is_valid(results_bufnr) then
log.debug("Invalid results_bufnr for clearing:", results_bufnr)
return
end
local worst_line, ok, msg
if self.sorting_strategy == 'ascending' then
local num_results = self.manager:num_results()
worst_line = self.max_results - num_results
if worst_line <= 0 then
return
end
ok, msg = pcall(vim.api.nvim_buf_set_lines, results_bufnr, num_results, -1, false, {})
else
worst_line = self:get_row(self.manager:num_results())
if worst_line <= 0 then
return
end
local empty_lines = utils.repeated_table(worst_line, "")
ok, msg = pcall(vim.api.nvim_buf_set_lines, results_bufnr, 0, worst_line, false, empty_lines)
end
if not ok then
log.debug(msg)
end
log.trace("Clearing:", worst_line)
end
function Picker:highlight_displayed_rows(results_bufnr, prompt)
if not self.sorter or not self.sorter.highlighter then
return
end
vim.api.nvim_buf_clear_namespace(results_bufnr, ns_telescope_matching, 0, -1)
local displayed_rows = vim.api.nvim_buf_get_lines(results_bufnr, 0, -1, false)
for row_index = 1, math.min(#displayed_rows, self.max_results) do
local display = displayed_rows[row_index]
self:highlight_one_row(results_bufnr, prompt, display, row_index - 1)
end
end
function Picker:highlight_one_row(results_bufnr, prompt, display, row)
local highlights = self:_track("_highlight_time", self.sorter.highlighter, self.sorter, prompt, display)
if highlights then
for _, hl in ipairs(highlights) do
local highlight, start, finish
if type(hl) == 'table' then
highlight = hl.highlight or 'TelescopeMatching'
start = hl.start
finish = hl.finish or hl.start
elseif type(hl) == 'number' then
highlight = 'TelescopeMatching'
start = hl
finish = hl
else
error('Invalid higlighter fn')
end
self:_increment('highlights')
vim.api.nvim_buf_add_highlight(
results_bufnr,
ns_telescope_matching,
highlight,
row,
start - 1,
finish
)
end
end
local entry = self.manager:get_entry(self:get_index(row))
self.highlighter:hi_multiselect(row, self:is_multi_selected(entry))
end
function Picker:can_select_row(row)
if self.sorting_strategy == 'ascending' then
return row <= self.manager:num_results()
else
return row <= self.max_results and row >= self.max_results - self.manager:num_results()
end
end
function Picker:_next_find_id()
local find_id = self._find_id + 1
self._find_id = find_id
return find_id
end
function Picker:find()
self:close_existing_pickers()
self:reset_selection()
assert(self.finder, "Finder is required to do picking")
self.original_win_id = a.nvim_get_current_win()
-- User autocmd run it before create Telescope window
vim.cmd [[doautocmd User TelescopeFindPre]]
-- Create three windows:
-- 1. Prompt window
-- 2. Options window
-- 3. Preview window
local line_count = vim.o.lines - vim.o.cmdheight
if vim.o.laststatus ~= 0 then
line_count = line_count - 1
end
local popup_opts = self:get_window_options(vim.o.columns, line_count)
-- `popup.nvim` massaging so people don't have to remember minheight shenanigans
popup_opts.results.minheight = popup_opts.results.height
popup_opts.prompt.minheight = popup_opts.prompt.height
if popup_opts.preview then
popup_opts.preview.minheight = popup_opts.preview.height
end
local results_win, results_opts = popup.create('', popup_opts.results)
local results_bufnr = a.nvim_win_get_buf(results_win)
self.results_bufnr = results_bufnr
self.results_win = results_win
-- TODO: Should probably always show all the line for results win, so should implement a resize for the windows
a.nvim_win_set_option(results_win, 'wrap', false)
a.nvim_win_set_option(results_win, 'winhl', 'Normal:TelescopeNormal')
a.nvim_win_set_option(results_win, 'winblend', self.window.winblend)
local results_border_win = results_opts.border and results_opts.border.win_id
if results_border_win then
vim.api.nvim_win_set_option(results_border_win, 'winhl', 'Normal:TelescopeResultsBorder')
end
local preview_win, preview_opts, preview_bufnr
if popup_opts.preview then
preview_win, preview_opts = popup.create('', popup_opts.preview)
preview_bufnr = a.nvim_win_get_buf(preview_win)
a.nvim_win_set_option(preview_win, 'winhl', 'Normal:TelescopePreviewNormal')
a.nvim_win_set_option(preview_win, 'winblend', self.window.winblend)
local preview_border_win = preview_opts and preview_opts.border and preview_opts.border.win_id
if preview_border_win then
vim.api.nvim_win_set_option(preview_border_win, 'winhl', 'Normal:TelescopePreviewBorder')
end
end
-- TODO: We need to center this and make it prettier...
local prompt_win, prompt_opts = popup.create('', popup_opts.prompt)
local prompt_bufnr = a.nvim_win_get_buf(prompt_win)
a.nvim_win_set_option(prompt_win, 'winhl', 'Normal:TelescopeNormal')
a.nvim_win_set_option(prompt_win, 'winblend', self.window.winblend)
local prompt_border_win = prompt_opts.border and prompt_opts.border.win_id
if prompt_border_win then vim.api.nvim_win_set_option(prompt_border_win, 'winhl', 'Normal:TelescopePromptBorder') end
-- Prompt prefix
local prompt_prefix = self.prompt_prefix
if prompt_prefix ~= '' then
a.nvim_buf_set_option(prompt_bufnr, 'buftype', 'prompt')
vim.fn.prompt_setprompt(prompt_bufnr, prompt_prefix)
end
self.prompt_prefix = prompt_prefix
self:_reset_prefix_color()
-- Temporarily disabled: Draw the screen ASAP. This makes things feel speedier.
-- vim.cmd [[redraw]]
-- First thing we want to do is set all the lines to blank.
self.max_results = popup_opts.results.height
vim.api.nvim_buf_set_lines(results_bufnr, 0, self.max_results, false, utils.repeated_table(self.max_results, ""))
local status_updater = self:get_status_updater(prompt_win, prompt_bufnr)
local debounced_status = debounce.throttle_leading(status_updater, 50)
-- local debounced_status = status_updater
local tx, rx = channel.mpsc()
self.__on_lines = tx.send
local main_loop = async(function()
while true do
await(async_lib.scheduler())
local _, _, _, first_line, last_line = await(rx.last())
self:_reset_track()
if not vim.api.nvim_buf_is_valid(prompt_bufnr) then
log.debug("ON_LINES: Invalid prompt_bufnr", prompt_bufnr)
return
end
if not first_line then first_line = 0 end
if not last_line then last_line = 1 end
if first_line > 0 or last_line > 1 then
log.debug("ON_LINES: Bad range", first_line, last_line, self:_get_prompt())
return
end
local original_prompt = self:_get_prompt()
local on_input_result = self._on_input_filter_cb(original_prompt) or {}
local prompt = on_input_result.prompt or original_prompt
local finder = on_input_result.updated_finder
if finder then
self.finder:close()
self.finder = finder
end
if self.sorter then self.sorter:_start(prompt) end
-- TODO: Entry manager should have a "bulk" setter. This can prevent a lot of redraws from display
self.manager = EntryManager:new(self.max_results, self.entry_adder, self.stats)
local find_id = self:_next_find_id()
local process_result = self:get_result_processor(find_id, prompt, debounced_status)
local process_complete = self:get_result_completor(self.results_bufnr, find_id, prompt, status_updater)
local ok, msg = pcall(function()
self.finder(prompt, process_result, vim.schedule_wrap(process_complete))
end)
if not ok then
log.warn("Failed with msg: ", msg)
end
end
end)
-- Register attach
vim.api.nvim_buf_attach(prompt_bufnr, false, {
on_lines = tx.send,
on_detach = function()
-- TODO: Can we add a "cleanup" / "teardown" function that completely removes these.
self.finder = nil
self.previewer = nil
self.sorter = nil
self.manager = nil
self.closed = true
-- TODO: Should we actually do this?
collectgarbage(); collectgarbage()
end,
})
if self.sorter then self.sorter:_init() end
async_lib.run(main_loop())
status_updater()
-- TODO: Use WinLeave as well?
local on_buf_leave = string.format(
[[ autocmd BufLeave <buffer> ++nested ++once :silent lua require('telescope.pickers').on_close_prompt(%s)]],
prompt_bufnr)
vim.cmd([[augroup PickerInsert]])
vim.cmd([[ au!]])
vim.cmd( on_buf_leave)
vim.cmd([[augroup END]])
self.prompt_bufnr = prompt_bufnr
local preview_border_win = preview_opts and preview_opts.border and preview_opts.border.win_id
state.set_status(prompt_bufnr, setmetatable({
prompt_bufnr = prompt_bufnr,
prompt_win = prompt_win,
prompt_border_win = prompt_border_win,
results_bufnr = results_bufnr,
results_win = results_win,
results_border_win = results_border_win,
preview_bufnr = preview_bufnr,
preview_win = preview_win,
preview_border_win = preview_border_win,
picker = self,
}, { __mode = 'kv' }))
mappings.apply_keymap(prompt_bufnr, self.attach_mappings, config.values.mappings)
-- Do filetype last, so that users can register at the last second.
pcall(a.nvim_buf_set_option, prompt_bufnr, 'filetype', 'TelescopePrompt')
if self.default_text then
vim.api.nvim_buf_set_lines(prompt_bufnr, 0, 1, false, {self.default_text})
end
if self.initial_mode == "insert" then
vim.cmd [[startinsert!]]
elseif self.initial_mode ~= "normal" then
error("Invalid setting for initial_mode: " .. self.initial_mode)
end
end
function Picker:hide_preview()
-- 1. Hide the window (and border)
-- 2. Resize prompt & results windows accordingly
end
function Picker.close_windows(status)
local prompt_win = status.prompt_win
local results_win = status.results_win
local preview_win = status.preview_win
local prompt_border_win = status.prompt_border_win
local results_border_win = status.results_border_win
local preview_border_win = status.preview_border_win
local function del_win(name, win_id, force, bdelete)
if not vim.api.nvim_win_is_valid(win_id) then
return
end
local bufnr = vim.api.nvim_win_get_buf(win_id)
if bdelete
and vim.api.nvim_buf_is_valid(bufnr)
and not vim.api.nvim_buf_get_option(bufnr, 'buflisted') then
vim.cmd(string.format("silent! bdelete! %s", bufnr))
end
if not vim.api.nvim_win_is_valid(win_id) then
return
end
if not pcall(vim.api.nvim_win_close, win_id, force) then
log.trace("Unable to close window: ", name, "/", win_id)
end
end
del_win("prompt_win", prompt_win, true)
del_win("results_win", results_win, true, true)
del_win("preview_win", preview_win, true, true)
del_win("prompt_border_win", prompt_border_win, true, true)
del_win("results_border_win", results_border_win, true, true)
del_win("preview_border_win", preview_border_win, true, true)
-- vim.cmd(string.format("bdelete! %s", status.prompt_bufnr))
-- Major hack?? Why do I have to od this.
-- Probably because we're currently IN the buffer.
-- Should wait to do this until after we're done.
vim.defer_fn(function()
del_win("prompt_win", prompt_win, true)
end, 10)
state.clear_status(status.prompt_bufnr)
end
function Picker:get_selection()
return self._selection_entry
end
function Picker:get_selection_row()
return self._selection_row or self.max_results
end
function Picker:move_selection(change)
self:set_selection(self:get_selection_row() + change)
end
function Picker:add_selection(row)
local entry = self.manager:get_entry(self:get_index(row))
self._multi:add(entry)
self.highlighter:hi_multiselect(row, true)
end
function Picker:remove_selection(row)
local entry = self.manager:get_entry(self:get_index(row))
self._multi:drop(entry)
self.highlighter:hi_multiselect(row, false)
end
function Picker:is_multi_selected(entry)
return self._multi:is_selected(entry)
end
function Picker:get_multi_selection()
return self._multi:get()
end
function Picker:toggle_selection(row)
local entry = self.manager:get_entry(self:get_index(row))
self._multi:toggle(entry)
self.highlighter:hi_multiselect(row, self._multi:is_selected(entry))
end
function Picker:reset_selection()
self._selection_entry = nil
self._selection_row = nil
end
function Picker:_reset_prefix_color(hl_group)
self._current_prefix_hl_group = hl_group or nil
if self.prompt_prefix ~= '' then
vim.api.nvim_buf_add_highlight(self.prompt_bufnr,
ns_telescope_prompt_prefix,
self._current_prefix_hl_group or 'TelescopePromptPrefix',
0,
0,
#self.prompt_prefix
)
end
end
-- TODO(conni2461): Maybe _ prefix these next two functions
-- TODO(conni2461): Next two functions only work together otherwise color doesn't work
-- Probably a issue with prompt buffers
function Picker:change_prompt_prefix(new_prefix, hl_group)
if not new_prefix then return end
if new_prefix ~= '' then
vim.fn.prompt_setprompt(self.prompt_bufnr, new_prefix)
else
vim.api.nvim_buf_set_text(self.prompt_bufnr, 0, 0, 0, #self.prompt_prefix, {})
vim.api.nvim_buf_set_option(self.prompt_bufnr, 'buftype', '')
end
self.prompt_prefix = new_prefix
self:_reset_prefix_color(hl_group)
end
function Picker:reset_prompt(text)
local prompt_text = self.prompt_prefix .. (text or '')
vim.api.nvim_buf_set_lines(self.prompt_bufnr, 0, -1, false, { prompt_text })
self:_reset_prefix_color(self._current_prefix_hl_group)
if text then
vim.api.nvim_win_set_cursor(self.prompt_win, {1, #prompt_text})
end
end
--- opts.new_prefix: Either as string or { new_string, hl_group }
--- opts.reset_prompt: bool
function Picker:refresh(finder, opts)
opts = opts or {}
if opts.new_prefix then
local handle = type(opts.new_prefix) == 'table' and unpack or function(x) return x end
self:change_prompt_prefix(handle(opts.new_prefix))
end
if opts.reset_prompt then self:reset_prompt() end
self.finder:close()
if finder then self.finder = finder end
self.__on_lines(nil, nil, nil, 0, 1)
end
function Picker:set_selection(row)
row = self.scroller(self.max_results, self.manager:num_results(), row)
if not self:can_select_row(row) then
-- If the current selected row exceeds number of currently displayed
-- elements we have to reset it. Affects sorting_strategy = 'row'.
if not self:can_select_row(self:get_selection_row()) then
row = self:get_row(self.manager:num_results())
else
log.trace("Cannot select row:", row, self.manager:num_results(), self.max_results)
return
end
end
local results_bufnr = self.results_bufnr
if not a.nvim_buf_is_valid(results_bufnr) then
return
end
if row > a.nvim_buf_line_count(results_bufnr) then
log.debug(string.format(
"Should not be possible to get row this large %s %s",
row,
a.nvim_buf_line_count(results_bufnr)
))
return
end
local entry = self.manager:get_entry(self:get_index(row))
state.set_global_key("selected_entry", entry)
if not entry then return end
-- TODO: Probably should figure out what the rows are that made this happen...
-- Probably something with setting a row that's too high for this?
-- Not sure.
local set_ok, set_errmsg = pcall(function()
local prompt = self:_get_prompt()
-- Handle adding '> ' to beginning of selections
if self._selection_row then
-- Only change the first couple characters, nvim_buf_set_text leaves the existing highlights
a.nvim_buf_set_text(
results_bufnr,
self._selection_row, 0,
self._selection_row, #self.selection_caret,
{ self.entry_prefix }
)
self.highlighter:hi_multiselect(
self._selection_row,
self:is_multi_selected(self._selection_entry)
)
-- local display = a.nvim_buf_get_lines(results_bufnr, old_row, old_row + 1, false)[1]
-- display = ' ' .. display
-- a.nvim_buf_set_lines(results_bufnr, old_row, old_row + 1, false, {display})
-- self.highlighter:hi_display(old_row, ' ', display_highlights)
-- self.highlighter:hi_sorter(old_row, prompt, display)
end
local caret = self.selection_caret
-- local display = string.format('%s %s', caret,
-- (a.nvim_buf_get_lines(results_bufnr, row, row + 1, false)[1] or ''):sub(3)
-- )
local display, display_highlights = entry_display.resolve(self, entry)
display = caret .. display
-- TODO: You should go back and redraw the highlights for this line from the sorter.
-- That's the only smart thing to do.
if not a.nvim_buf_is_valid(results_bufnr) then
log.debug("Invalid buf somehow...")
return
end
a.nvim_buf_set_lines(results_bufnr, row, row + 1, false, {display})
-- don't highlight the ' ' at the end of caret
self.highlighter:hi_selection(row, caret:sub(1, -2))
self.highlighter:hi_display(row, caret, display_highlights)
self.highlighter:hi_sorter(row, prompt, display)
self.highlighter:hi_multiselect(row, self:is_multi_selected(entry))
end)
if not set_ok then
log.debug(set_errmsg)
return
end
if self._selection_entry == entry and self._selection_row == row then
return
end
-- TODO: Get row & text in the same obj
self._selection_entry = entry
self._selection_row = row
self:refresh_previewer()
end
function Picker:refresh_previewer()
local status = state.get_status(self.prompt_bufnr)
if status.preview_win and self.previewer then
self:_increment("previewed")
self.previewer:preview(
self._selection_entry,
status
)
end
end
function Picker:entry_adder(index, entry, _, insert)
if not entry then return end
local row = self:get_row(index)
-- If it's less than 0, then we don't need to show it at all.
if row < 0 then
log.debug("ON_ENTRY: Weird row", row)
return
end
local display, display_highlights = entry_display.resolve(self, entry)
if not display then
log.info("Weird entry", entry)
return
end
-- This is the two spaces to manage the '> ' stuff.
-- Maybe someday we can use extmarks or floaty text or something to draw this and not insert here.
-- until then, insert two spaces
local prefix = self.entry_prefix
display = prefix .. display
self:_increment("displayed")
-- TODO: Don't need to schedule this if we schedule the adder.
local offset = insert and 0 or 1
vim.schedule(function()
if not vim.api.nvim_buf_is_valid(self.results_bufnr) then
log.debug("ON_ENTRY: Invalid buffer")
return
end
-- TODO: Does this every get called?
-- local line_count = vim.api.nvim_win_get_height(self.results_win)
local line_count = vim.api.nvim_buf_line_count(self.results_bufnr)
if row > line_count then
return
end
if insert then
if self.sorting_strategy == 'descending' then
vim.api.nvim_buf_set_lines(self.results_bufnr, 0, 1, false, {})
end
end
local set_ok, msg = pcall(vim.api.nvim_buf_set_lines, self.results_bufnr, row, row + offset, false, {display})
if set_ok and display_highlights then
self.highlighter:hi_display(row, prefix, display_highlights)
end
if not set_ok then
log.debug("Failed to set lines...", msg)
end
-- This pretty much only fails when people leave newlines in their results.
-- So we'll clean it up for them if it fails.
if not set_ok and display:find("\n") then
display = display:gsub("\n", " | ")
vim.api.nvim_buf_set_lines(self.results_bufnr, row, row + 1, false, {display})
end
end)
end
function Picker:_reset_track()
self.stats.processed = 0
self.stats.displayed = 0
self.stats.display_fn = 0
self.stats.previewed = 0
self.stats.status = 0
self.stats.filtered = 0
self.stats.highlights = 0
end
function Picker:_track(key, func, ...)
local start, final
if self.track then
start = vim.loop.hrtime()
end
-- Hack... we just do this so that we can track stuff that returns two values.
local res1, res2 = func(...)
if self.track then
final = vim.loop.hrtime()
self.stats[key] = final - start + self.stats[key]
end
return res1, res2
end
function Picker:_increment(key)
self.stats[key] = (self.stats[key] or 0) + 1
end
function Picker:_decrement(key)
self.stats[key] = (self.stats[key] or 0) - 1
end
-- TODO: Decide how much we want to use this.
-- Would allow for better debugging of items.
function Picker:register_completion_callback(cb)
table.insert(self._completion_callbacks, cb)
end
function Picker:_on_complete()
for _, v in ipairs(self._completion_callbacks) do
pcall(v, self)
end
end
function Picker:close_existing_pickers()
for _, prompt_bufnr in ipairs(state.get_existing_prompts()) do
pcall(actions.close, prompt_bufnr)
end
end
function Picker:get_status_updater(prompt_win, prompt_bufnr)
return function()
local text = self:get_status_text()
if self.closed or not vim.api.nvim_buf_is_valid(prompt_bufnr) then return end
local current_prompt = vim.api.nvim_buf_get_lines(prompt_bufnr, 0, 1, false)[1]
if not current_prompt then
return
end
if not vim.api.nvim_win_is_valid(prompt_win) then
return
end
local prompt_len = #current_prompt
local padding = string.rep(" ", vim.api.nvim_win_get_width(prompt_win) - prompt_len - #text - 3)
vim.api.nvim_buf_clear_namespace(prompt_bufnr, ns_telescope_prompt, 0, 1)
vim.api.nvim_buf_set_virtual_text(
prompt_bufnr,
ns_telescope_prompt,
0,
{ {padding .. text, "NonText"} },
{}
)
-- TODO: Wait for bfredl
-- vim.api.nvim_buf_set_extmark(prompt_bufnr, ns_telescope_prompt, 0, 0, {
-- end_line = 0,
-- -- end_col = start_column + #text,
-- virt_text = { { text, "NonText", } },
-- virt_text_pos = "eol",
-- })
self:_increment("status")
end
end
function Picker:get_result_processor(find_id, prompt, status_updater)
local cb_add = function(score, entry)
self.manager:add_entry(self, score, entry)
status_updater()
end
local cb_filter = function(_)
self:_increment("filtered")
end
return function(entry)
if find_id ~= self._find_id
or self.closed
or self:is_done() then
return true
end
self:_increment("processed")
if not entry or entry.valid == false then
return
end
-- TODO: Probably should asyncify this / cache this / do something because this probably takes
-- a ton of time on large results.
log.trace("Processing result... ", entry)
for _, v in ipairs(self.file_ignore_patterns or {}) do
local file = type(entry.value) == 'string' and entry.value or entry.filename
if file then
if string.find(file, v) then
log.trace("SKIPPING", entry.value, "because", v)
self:_decrement("processed")
return
end
end
end
self.sorter:score(prompt, entry, cb_add, cb_filter)
end
end
function Picker:get_result_completor(results_bufnr, find_id, prompt, status_updater)
return function()
if self.closed == true or self:is_done() then return end
local selection_strategy = self.selection_strategy or 'reset'
-- TODO: Either: always leave one result or make sure we actually clean up the results when nothing matches
if selection_strategy == 'row' then
if self._selection_row == nil and self.default_selection_index ~= nil then
self:set_selection(self:get_row(self.default_selection_index))
else
self:set_selection(self:get_selection_row())
end
elseif selection_strategy == 'follow' then
if self._selection_row == nil and self.default_selection_index ~= nil then
self:set_selection(self:get_row(self.default_selection_index))
else
local index = self.manager:find_entry(self:get_selection())
if index then
local follow_row = self:get_row(index)
self:set_selection(follow_row)
else
self:set_selection(self:get_reset_row())
end
end
elseif selection_strategy == 'reset' then
if self.default_selection_index ~= nil then
self:set_selection(self:get_row(self.default_selection_index))
else
self:set_selection(self:get_reset_row())
end
else
error('Unknown selection strategy: ' .. selection_strategy)
end
local current_line = vim.api.nvim_get_current_line():sub(self.prompt_prefix:len() + 1)
state.set_global_key('current_line', current_line)
status_updater()