mpv/player/lua/console.lua

1942 lines
63 KiB
Lua

-- Copyright (C) 2019 the mpv developers
--
-- Permission to use, copy, modify, and/or distribute this software for any
-- purpose with or without fee is hereby granted, provided that the above
-- copyright notice and this permission notice appear in all copies.
--
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-- SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
-- OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-- CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
local utils = require 'mp.utils'
local assdraw = require 'mp.assdraw'
local function detect_platform()
local platform = mp.get_property_native('platform')
if platform == 'darwin' or platform == 'windows' then
return platform
elseif os.getenv('WAYLAND_DISPLAY') then
return 'wayland'
end
return 'x11'
end
local platform = detect_platform()
-- Default options
local opts = {
font = "",
font_size = 24,
border_size = 1.5,
scale_with_window = "auto",
case_sensitive = platform ~= 'windows' and true or false,
history_dedup = true,
font_hw_ratio = 'auto',
}
-- Apply user-set options
require 'mp.options'.read_options(opts)
local styles = {
-- Colors are stolen from base16 Eighties by Chris Kempson
-- and converted to BGR as is required by ASS.
-- 2d2d2d 393939 515151 697374
-- 939fa0 c8d0d3 dfe6e8 ecf0f2
-- 7a77f2 5791f9 66ccff 99cc99
-- cccc66 cc9966 cc99cc 537bd2
debug = '{\\1c&Ha09f93&}',
v = '{\\1c&H99cc99&}',
warn = '{\\1c&H66ccff&}',
error = '{\\1c&H7a77f2&}',
fatal = '{\\1c&H5791f9&}',
suggestion = '{\\1c&Hcc99cc&}',
selected_suggestion = '{\\1c&H2fbdfa&\\b1}',
default_item = '{\\1c&H2fbdfa&}',
disabled = '{\\1c&Hcccccc&}',
}
local terminal_styles = {
debug = '\027[90m',
v = '\027[32m',
warn = '\027[33m',
error = '\027[31m',
fatal = '\027[91m',
selected_suggestion = '\027[7m',
default_item = '\027[1m',
disabled = '\027[38;5;8m',
}
local repl_active = false
local osd_msg_active = false
local insert_mode = false
local pending_update = false
local line = ''
local cursor = 1
local default_prompt = '>'
local prompt = default_prompt
local default_id = 'default'
local id = default_id
local histories = {[id] = {}}
local history = histories[id]
local history_pos = 1
local searching_history = false
local log_buffers = {[id] = {}}
local key_bindings = {}
local dont_bind_up_down = false
local global_margins = { t = 0, b = 0 }
local input_caller
local suggestion_buffer = {}
local selected_suggestion_index
local completion_pos
local completion_append
local path_separator = platform == 'windows' and '\\' or '/'
local completion_old_line
local completion_old_cursor
local selectable_items
local matches = {}
local selected_match = 1
local first_match_to_print = 1
local default_item
local set_active
local function get_font()
if opts.font ~= '' then
return opts.font
end
if selectable_items and not searching_history then
return
end
-- Pick a better default font for Windows and macOS
if platform == 'windows' then
return 'Consolas'
end
if platform == 'darwin' then
return 'Menlo'
end
return 'monospace'
end
-- Naive helper function to find the next UTF-8 character in 'str' after 'pos'
-- by skipping continuation bytes. Assumes 'str' contains valid UTF-8.
local function next_utf8(str, pos)
if pos > str:len() then return pos end
repeat
pos = pos + 1
until pos > str:len() or str:byte(pos) < 0x80 or str:byte(pos) > 0xbf
return pos
end
-- As above, but finds the previous UTF-8 character in 'str' before 'pos'
local function prev_utf8(str, pos)
if pos <= 1 then return pos end
repeat
pos = pos - 1
until pos <= 1 or str:byte(pos) < 0x80 or str:byte(pos) > 0xbf
return pos
end
local function len_utf8(str)
local len = 0
local pos = 1
while pos <= str:len() do
pos = next_utf8(str, pos)
len = len + 1
end
return len
end
-- Functions to calculate the font width.
local width_length_ratio = 0.5
local osd_width, osd_height = 100, 100
---Update osd resolution if valid
local function update_osd_resolution()
local dim = mp.get_property_native('osd-dimensions')
if not dim or dim.w == 0 or dim.h == 0 then
return
end
osd_width = dim.w
osd_height = dim.h
end
local text_osd = mp.create_osd_overlay('ass-events')
text_osd.compute_bounds, text_osd.hidden = true, true
local function measure_bounds(ass_text)
update_osd_resolution()
text_osd.res_x, text_osd.res_y = osd_width, osd_height
text_osd.data = ass_text
local res = text_osd:update()
return res.x0, res.y0, res.x1, res.y1
end
---Measure text width and normalize to a font size of 1
---text has to be ass safe
local function normalized_text_width(text, size, horizontal)
local align, rotation = horizontal and 7 or 1, horizontal and 0 or -90
local template = '{\\pos(0,0)\\rDefault\\blur0\\bord0\\shad0\\q2\\an%s\\fs%s\\fn%s\\frz%s}%s'
size = size / 0.8
local width
-- Limit to 5 iterations
local repetitions_left = 5
for i = 1, repetitions_left do
size = size * 0.8
local ass = assdraw.ass_new()
ass.text = template:format(align, size, get_font(), rotation, text)
local _, _, x1, y1 = measure_bounds(ass.text)
-- Check if nothing got clipped
if x1 and x1 < osd_width and y1 < osd_height then
width = horizontal and x1 or y1
break
end
if i == repetitions_left then
width = 0
end
end
return width / size, horizontal and osd_width or osd_height
end
local function fit_on_osd(text)
local estimated_width = #text * width_length_ratio
if osd_width >= osd_height then
-- Fill the osd as much as possible, bigger is more accurate.
return math.min(osd_width / estimated_width, osd_height), true
else
return math.min(osd_height / estimated_width, osd_width), false
end
end
local measured_font_hw_ratio = nil
local function get_font_hw_ratio()
local font_hw_ratio = tonumber(opts.font_hw_ratio)
if font_hw_ratio then
return font_hw_ratio
end
if not measured_font_hw_ratio then
local alphabet = 'abcdefghijklmnopqrstuvwxyz'
local text = alphabet:rep(3)
update_osd_resolution()
local size, horizontal = fit_on_osd(text)
local normalized_width = normalized_text_width(text, size * 0.9, horizontal)
measured_font_hw_ratio = #text / normalized_width * 0.95
end
return measured_font_hw_ratio
end
-- Escape a string for verbatim display on the OSD
local function ass_escape(str)
return mp.command_native({'escape-ass', str})
end
local function should_scale()
return opts.scale_with_window == "yes" or
(opts.scale_with_window == "auto" and mp.get_property_native("osd-scale-by-window"))
end
local function scale_factor()
local height = mp.get_property_native('osd-height')
if should_scale() and height > 0 then
return height / 720
end
return mp.get_property_native('display-hidpi-scale', 1)
end
local function get_scaled_osd_dimensions()
local dims = mp.get_property_native('osd-dimensions')
local scale = scale_factor()
return dims.w / scale, dims.h /scale
end
local function calculate_max_log_lines()
if not mp.get_property_native('vo-configured')
or not mp.get_property_native('video-osd') then
-- Subtract 1 for the input line and for each line in the status line.
-- This does not detect wrapped lines.
return mp.get_property_native('term-size/h', 24) - 2 -
select(2, mp.get_property('term-status-msg'):gsub('\\n', ''))
end
return math.floor(select(2, get_scaled_osd_dimensions())
* (1 - global_margins.t - global_margins.b)
/ opts.font_size
-- Subtract 1 for the input line and 1 for the newline
-- between the log and the input line.
- 2)
end
-- Takes a list of strings, a max width in characters and
-- optionally a max row count.
-- The result contains at least one column.
-- Rows are cut off from the top if rows_max is specified.
-- returns a string containing the formatted table and the row count
local function format_table(list, width_max, rows_max)
if #list == 0 then
return '', 0
end
local spaces_min = 2
local spaces_max = 8
local list_size = #list
local column_count = 1
local row_count = list_size
local column_widths
-- total width without spacing
local width_total = 0
local list_widths = {}
for i, item in ipairs(list) do
list_widths[i] = len_utf8(item)
end
-- use as many columns as possible
for columns = 2, list_size do
local rows_lower_bound = math.min(rows_max, math.ceil(list_size / columns))
local rows_upper_bound = math.min(rows_max, list_size,
math.ceil(list_size / (columns - 1) - 1))
for rows = rows_upper_bound, rows_lower_bound, -1 do
local cw = {}
width_total = 0
-- find out width of each column
for column = 1, columns do
local width = 0
for row = 1, rows do
local i = row + (column - 1) * rows
local item_width = list_widths[i]
if not item_width then break end
if width < item_width then
width = item_width
end
end
cw[column] = width
width_total = width_total + width
if width_total + (columns - 1) * spaces_min > width_max then
break
end
end
if width_total + (columns - 1) * spaces_min <= width_max then
row_count = rows
column_count = columns
column_widths = cw
else
break
end
end
if width_total + (columns - 1) * spaces_min > width_max then
break
end
end
local spaces = math.floor((width_max - width_total) / (column_count - 1))
spaces = math.max(spaces_min, math.min(spaces_max, spaces))
local spacing = column_count > 1
and ass_escape(string.format('%' .. spaces .. 's', ' '))
or ''
local rows = {}
for row = 1, row_count do
local columns = {}
for column = 1, column_count do
local i = row + (column - 1) * row_count
if i > #list then break end
-- more then 99 leads to 'invalid format (width or precision too long)'
local format_string = column == column_count and '%s'
or '%-' .. math.min(column_widths[column], 99) .. 's'
columns[column] = ass_escape(string.format(format_string, list[i]))
if i == selected_suggestion_index then
columns[column] = styles.selected_suggestion .. columns[column]
.. '{\\b0}'.. styles.suggestion
end
end
-- first row is at the bottom
rows[row_count - row + 1] = table.concat(columns, spacing)
end
return table.concat(rows, ass_escape('\n')), row_count
end
local function fuzzy_find(needle, haystacks)
local result = require 'mp.fzy'.filter(needle, haystacks)
if line ~= '' then -- Prevent table.sort() from reordering the items.
table.sort(result, function (i, j)
return i[3] > j[3]
end)
end
for i, value in ipairs(result) do
result[i] = value[1]
end
return result
end
local function populate_log_with_matches()
if not selectable_items or selected_match == 0 then
return
end
log_buffers[id] = {}
local log = log_buffers[id]
local max_log_lines = calculate_max_log_lines()
local print_counter = false
if #matches > max_log_lines then
print_counter = true
max_log_lines = max_log_lines - 1
end
if selected_match < first_match_to_print then
first_match_to_print = selected_match
elseif selected_match > first_match_to_print + max_log_lines - 1 then
first_match_to_print = selected_match - max_log_lines + 1
end
local last_match_to_print = math.min(first_match_to_print + max_log_lines - 1,
#matches)
if print_counter then
log[1] = {
text = '',
style = styles.disabled .. selected_match .. '/' .. #matches ..
' {\\fs' .. opts.font_size * 0.75 .. '}[' ..
first_match_to_print .. '-' .. last_match_to_print .. ']',
terminal_style = terminal_styles.disabled .. selected_match .. '/' ..
#matches .. ' [' .. first_match_to_print .. '-' ..
last_match_to_print .. ']',
}
end
for i = first_match_to_print, last_match_to_print do
local style = ''
local terminal_style = ''
if i == selected_match then
style = styles.selected_suggestion
terminal_style = terminal_styles.selected_suggestion
end
if matches[i].index == default_item then
style = style .. styles.default_item
terminal_style = terminal_style .. terminal_styles.default_item
end
log[#log + 1] = {
text = matches[i].text,
style = style,
terminal_style = terminal_style,
}
end
end
local function print_to_terminal()
-- Clear the log after closing the console.
if not repl_active then
if osd_msg_active then
mp.osd_message('')
end
osd_msg_active = false
return
end
populate_log_with_matches()
local log = ''
local clip = selectable_items and mp.get_property('term-clip-cc') or ''
for _, log_line in ipairs(log_buffers[id]) do
log = log .. clip .. log_line.terminal_style .. log_line.text .. '\027[0m\n'
end
local suggestions = ''
for i, suggestion in ipairs(suggestion_buffer) do
if i == selected_suggestion_index then
suggestions = suggestions .. terminal_styles.selected_suggestion ..
suggestion .. '\027[0m'
else
suggestions = suggestions .. suggestion
end
suggestions = suggestions .. (i < #suggestion_buffer and '\t' or '\n')
end
local before_cur = line:sub(1, cursor - 1)
local after_cur = line:sub(cursor)
-- Ensure there is a character with inverted colors to print.
if after_cur == '' then
after_cur = ' '
end
mp.osd_message(log .. suggestions .. prompt .. ' ' .. before_cur ..
'\027[7m' .. after_cur:sub(1, 1) .. '\027[0m' ..
after_cur:sub(2), 999)
osd_msg_active = true
end
-- Render the REPL and console as an ASS OSD
local function update()
pending_update = false
-- Unlike vo-configured, current-vo doesn't become falsy while switching VO,
-- which would print the log to the OSD.
if not mp.get_property('current-vo') or not mp.get_property_native('video-osd') then
print_to_terminal()
return
end
-- Clear the OSD if the console was being printed to the terminal
if osd_msg_active then
mp.osd_message('')
osd_msg_active = false
end
-- Clear the OSD if the REPL is not active
if not repl_active then
mp.set_osd_ass(0, 0, '')
return
end
local screenx, screeny = get_scaled_osd_dimensions()
local bottom_left_margin = 6
local coordinate_top = math.floor(global_margins.t * screeny + 0.5)
local clipping_coordinates = '0,' .. coordinate_top .. ',' ..
screenx .. ',' .. screeny
local ass = assdraw.ass_new()
local has_shadow = mp.get_property('osd-border-style'):find('box$') == nil
local font = get_font()
local style = '{\\r' ..
'\\1a&H00&\\3a&H00&\\1c&Heeeeee&\\3c&H111111&' ..
(has_shadow and '\\4a&H99&\\4c&H000000&' or '') ..
(font and '\\fn' .. font or '') ..
'\\fs' .. opts.font_size ..
'\\bord' .. opts.border_size .. '\\xshad0\\yshad1\\fsp0' ..
(selectable_items and '\\q2' or '\\q1') ..
'\\clip(' .. clipping_coordinates .. ')}'
-- Create the cursor glyph as an ASS drawing. ASS will draw the cursor
-- inline with the surrounding text, but it sets the advance to the width
-- of the drawing. So the cursor doesn't affect layout too much, make it as
-- thin as possible and make it appear to be 1px wide by giving it 0.5px
-- horizontal borders.
local cheight = opts.font_size * 8
local cglyph = '{\\rDefault' ..
(mp.get_property_native('focused') == false
and '\\alpha&HFF&' or '\\1a&H44&\\3a&H44&\\4a&H99&') ..
'\\1c&Heeeeee&\\3c&Heeeeee&\\4c&H000000&' ..
'\\xbord0.5\\ybord0\\xshad0\\yshad1\\p4\\pbo24}' ..
'm 0 0 l 1 0 l 1 ' .. cheight .. ' l 0 ' .. cheight ..
'{\\p0}'
local before_cur = ass_escape(line:sub(1, cursor - 1))
local after_cur = ass_escape(line:sub(cursor))
-- Render log messages as ASS.
-- This will render at most screeny / font_size - 1 messages.
local lines_max = calculate_max_log_lines()
local suggestion_ass = ''
if next(suggestion_buffer) then
-- Estimate how many characters fit in one line
local width_max = math.floor((screenx - bottom_left_margin -
mp.get_property_native('osd-margin-x') * 2 * screeny / 720)
/ opts.font_size * get_font_hw_ratio())
local suggestions, rows = format_table(suggestion_buffer, width_max, lines_max)
lines_max = lines_max - rows
suggestion_ass = style .. styles.suggestion .. suggestions .. '\\N'
end
populate_log_with_matches()
local log_ass = ''
local log_buffer = log_buffers[id]
local log_messages = #log_buffer
local log_max_lines = math.max(0, lines_max)
if log_max_lines < log_messages then
log_messages = log_max_lines
end
for i = #log_buffer - log_messages + 1, #log_buffer do
log_ass = log_ass .. style .. log_buffer[i].style ..
ass_escape(log_buffer[i].text) .. '\\N'
end
ass:new_event()
ass:an(1)
ass:pos(bottom_left_margin, screeny - bottom_left_margin - global_margins.b * screeny)
ass:append(log_ass .. '\\N')
ass:append(suggestion_ass)
ass:append(style .. ass_escape(prompt) .. ' ' .. before_cur)
ass:append(cglyph)
ass:append(style .. after_cur)
-- Redraw the cursor with the REPL text invisible. This will make the
-- cursor appear in front of the text.
ass:new_event()
ass:an(1)
ass:pos(bottom_left_margin, screeny - bottom_left_margin - global_margins.b * screeny)
ass:append(style .. '{\\alpha&HFF&}' .. ass_escape(prompt) .. ' ' .. before_cur)
ass:append(cglyph)
ass:append(style .. '{\\alpha&HFF&}' .. after_cur)
mp.set_osd_ass(screenx, screeny, ass.text)
end
local update_timer = nil
update_timer = mp.add_periodic_timer(0.05, function()
if pending_update then
update()
else
update_timer:kill()
end
end)
update_timer:kill()
-- Add a line to the log buffer (which is limited to 100 lines)
local function log_add(text, style, terminal_style)
local log_buffer = log_buffers[id]
log_buffer[#log_buffer + 1] = {
text = text,
style = style or '',
terminal_style = terminal_style or '',
}
if #log_buffer > 100 then
table.remove(log_buffer, 1)
end
if repl_active then
if not update_timer:is_enabled() then
update()
update_timer:resume()
else
pending_update = true
end
end
end
-- Add a line to the history and deduplicate
local function history_add(text)
if opts.history_dedup then
-- More recent entries are more likely to be repeated
for i = #history, 1, -1 do
if history[i] == text then
table.remove(history, i)
break
end
end
end
history[#history + 1] = text
end
local function handle_edit()
if selectable_items then
matches = {}
selected_match = 1
for i, match in ipairs(fuzzy_find(line, selectable_items)) do
matches[i] = { index = match, text = selectable_items[match] }
end
end
suggestion_buffer = {}
update()
if input_caller then
mp.commandv('script-message-to', input_caller, 'input-event', 'edited',
utils.format_json({line}))
end
end
-- Insert a character at the current cursor position (any_unicode)
local function handle_char_input(c)
if insert_mode then
line = line:sub(1, cursor - 1) .. c .. line:sub(next_utf8(line, cursor))
else
line = line:sub(1, cursor - 1) .. c .. line:sub(cursor)
end
cursor = cursor + #c
handle_edit()
end
-- Remove the character behind the cursor (Backspace)
local function handle_backspace()
if cursor <= 1 then return end
local prev = prev_utf8(line, cursor)
line = line:sub(1, prev - 1) .. line:sub(cursor)
cursor = prev
handle_edit()
end
-- Remove the character in front of the cursor (Del)
local function handle_del()
if cursor > line:len() then return end
line = line:sub(1, cursor - 1) .. line:sub(next_utf8(line, cursor))
handle_edit()
end
-- Toggle insert mode (Ins)
local function handle_ins()
insert_mode = not insert_mode
end
-- Move the cursor to the next character (Right)
local function next_char()
cursor = next_utf8(line, cursor)
suggestion_buffer = {}
update()
end
-- Move the cursor to the previous character (Left)
local function prev_char()
cursor = prev_utf8(line, cursor)
suggestion_buffer = {}
update()
end
-- Clear the current line (Ctrl+C)
local function clear()
line = ''
cursor = 1
insert_mode = false
history_pos = #history + 1
handle_edit()
end
-- Close the REPL if the current line is empty, otherwise delete the next
-- character (Ctrl+D)
local function maybe_exit()
if line == '' then
set_active(false)
else
handle_del()
end
end
local function help_command(param)
local cmdlist = mp.get_property_native('command-list')
table.sort(cmdlist, function(c1, c2)
return c1.name < c2.name
end)
local output = ''
if param == '' then
output = 'Available commands:\n'
for _, cmd in ipairs(cmdlist) do
output = output .. ' ' .. cmd.name
end
output = output .. '\n'
output = output .. 'Use "help command" to show information about a command.\n'
output = output .. "ESC or Ctrl+d exits the console.\n"
else
local cmd = nil
for _, curcmd in ipairs(cmdlist) do
if curcmd.name:find(param, 1, true) then
cmd = curcmd
if curcmd.name == param then
break -- exact match
end
end
end
if not cmd then
log_add('No command matches "' .. param .. '"!', styles.error,
terminal_styles.error)
return
end
output = output .. 'Command "' .. cmd.name .. '"\n'
for _, arg in ipairs(cmd.args) do
output = output .. ' ' .. arg.name .. ' (' .. arg.type .. ')'
if arg.optional then
output = output .. ' (optional)'
end
output = output .. '\n'
end
if cmd.vararg then
output = output .. 'This command supports variable arguments.\n'
end
end
log_add(output:sub(1, -2))
end
local function unbind_mouse()
mp.remove_key_binding('_console_mouse_move')
mp.remove_key_binding('_console_mbtn_left')
end
-- Run the current command and clear the line (Enter)
local function handle_enter()
if searching_history then
searching_history = false
selectable_items = nil
line = #matches > 0 and matches[selected_match].text or ''
cursor = #line + 1
log_buffers[id] = {}
update()
unbind_mouse()
return
end
if line == '' and input_caller == nil then
return
end
if history[#history] ~= line and line ~= '' then
history_add(line)
end
if selectable_items then
if #matches > 0 then
mp.commandv('script-message-to', input_caller, 'input-event', 'submit',
utils.format_json({matches[selected_match].index}))
end
set_active(false)
elseif input_caller then
mp.commandv('script-message-to', input_caller, 'input-event', 'submit',
utils.format_json({line}))
else
-- match "help [<text>]", return <text> or "", strip all whitespace
local help = line:match('^%s*help%s+(.-)%s*$') or
(line:match('^%s*help$') and '')
if help then
help_command(help)
else
mp.command(line)
end
end
clear()
end
local function determine_hovered_item()
local height = select(2, get_scaled_osd_dimensions())
local y = mp.get_property_native('mouse-pos').y / scale_factor()
- global_margins.t * height
-- Calculate how many lines could be printed without decreasing them for
-- the input line and OSC.
local max_lines = height / opts.font_size
local clicked_line = math.floor(y / height * max_lines + .5)
local offset = first_match_to_print - 1
local min_line = 1
max_lines = calculate_max_log_lines()
-- Subtract 1 line for the position counter.
if first_match_to_print > 1 or offset + max_lines < #matches then
min_line = 2
offset = offset - 1
end
if #matches < max_lines then
clicked_line = clicked_line - (max_lines - #matches)
max_lines = #matches
end
if clicked_line >= min_line and clicked_line <= max_lines then
return offset + clicked_line
end
end
local function bind_mouse()
mp.add_forced_key_binding('MOUSE_MOVE', '_console_mouse_move', function()
local item = determine_hovered_item()
if item and item ~= selected_match then
selected_match = item
update()
end
end)
mp.add_forced_key_binding('MBTN_LEFT', '_console_mbtn_left', function()
local item = determine_hovered_item()
if item then
selected_match = item
handle_enter()
else
set_active(false)
end
end)
end
-- Go to the specified position in the command history
local function go_history(new_pos)
local old_pos = history_pos
history_pos = new_pos
-- Restrict the position to a legal value
if history_pos > #history + 1 then
history_pos = #history + 1
elseif history_pos < 1 then
history_pos = 1
end
-- Do nothing if the history position didn't actually change
if history_pos == old_pos then
return
end
-- If the user was editing a non-history line, save it as the last history
-- entry. This makes it much less frustrating to accidentally hit Up/Down
-- while editing a line.
if old_pos == #history + 1 and line ~= '' and history[#history] ~= line then
history_add(line)
end
-- Now show the history line (or a blank line for #history + 1)
if history_pos <= #history then
line = history[history_pos]
else
line = ''
end
cursor = line:len() + 1
insert_mode = false
suggestion_buffer = {}
update()
end
-- Go to the specified relative position in the command history (Up, Down)
local function move_history(amount, is_wheel)
if is_wheel and selectable_items then
local max_lines = calculate_max_log_lines()
-- Update selected_match only if it's the first or last printed item and
-- there are hidden items.
if (amount > 0 and selected_match == first_match_to_print
and first_match_to_print + max_lines - 2 < #matches)
or (amount < 0 and selected_match == first_match_to_print + max_lines - 2
and first_match_to_print > 1) then
selected_match = selected_match + amount
end
if amount > 0 and first_match_to_print < #matches - max_lines + 2
or amount < 0 and first_match_to_print > 1 then
-- math.min and math.max would only be needed with amounts other than
-- 1 and -1.
first_match_to_print = math.min(
math.max(first_match_to_print + amount, 1), #matches - max_lines + 2)
end
local item = determine_hovered_item()
if item then
selected_match = item
end
update()
return
end
if selectable_items then
selected_match = selected_match + amount
if selected_match > #matches then
selected_match = 1
elseif selected_match < 1 then
selected_match = #matches
end
update()
return
end
go_history(history_pos + amount)
end
-- Go to the first command in the command history (PgUp)
local function handle_pgup()
if selectable_items then
selected_match = math.max(selected_match - calculate_max_log_lines() + 2, 1)
update()
return
end
go_history(1)
end
-- Stop browsing history and start editing a blank line (PgDown)
local function handle_pgdown()
if selectable_items then
selected_match = math.min(selected_match + calculate_max_log_lines() - 2, #matches)
update()
return
end
go_history(#history + 1)
end
local function search_history()
if selectable_items or #history == 0 then
return
end
searching_history = true
selectable_items = {}
matches = {}
selected_match = 1
first_match_to_print = 1
for i = 1, #history do
selectable_items[i] = history[#history + 1 - i]
end
for i, match in ipairs(fuzzy_find(line, selectable_items)) do
matches[i] = { index = match, text = selectable_items[match] }
end
update()
bind_mouse()
end
local function page_up_or_prev_char()
if selectable_items then
handle_pgup()
else
prev_char()
end
end
local function page_down_or_next_char()
if selectable_items then
handle_pgdown()
else
next_char()
end
end
-- Move to the start of the current word, or if already at the start, the start
-- of the previous word. (Ctrl+Left)
local function prev_word()
-- This is basically the same as next_word() but backwards, so reverse the
-- string in order to do a "backwards" find. This wouldn't be as annoying
-- to do if Lua didn't insist on 1-based indexing.
cursor = line:len() - select(2, line:reverse():find('%s*[^%s]*', line:len() - cursor + 2)) + 1
suggestion_buffer = {}
update()
end
-- Move to the end of the current word, or if already at the end, the end of
-- the next word. (Ctrl+Right)
local function next_word()
cursor = select(2, line:find('%s*[^%s]*', cursor)) + 1
suggestion_buffer = {}
update()
end
-- Move the cursor to the beginning of the line (HOME)
local function go_home()
cursor = 1
suggestion_buffer = {}
update()
end
-- Move the cursor to the end of the line (END)
local function go_end()
cursor = line:len() + 1
suggestion_buffer = {}
update()
end
-- Delete from the cursor to the beginning of the word (Ctrl+Backspace)
local function del_word()
local before_cur = line:sub(1, cursor - 1)
local after_cur = line:sub(cursor)
before_cur = before_cur:gsub('[^%s]+%s*$', '', 1)
line = before_cur .. after_cur
cursor = before_cur:len() + 1
handle_edit()
end
-- Delete from the cursor to the end of the word (Ctrl+Del)
local function del_next_word()
if cursor > line:len() then return end
local before_cur = line:sub(1, cursor - 1)
local after_cur = line:sub(cursor)
after_cur = after_cur:gsub('^%s*[^%s]+', '', 1)
line = before_cur .. after_cur
handle_edit()
end
-- Delete from the cursor to the end of the line (Ctrl+K)
local function del_to_eol()
line = line:sub(1, cursor - 1)
handle_edit()
end
-- Delete from the cursor back to the start of the line (Ctrl+U)
local function del_to_start()
line = line:sub(cursor)
cursor = 1
handle_edit()
end
-- Empty the log buffer of all messages (Ctrl+L)
local function clear_log_buffer()
log_buffers[id] = {}
update()
end
-- Returns a string of UTF-8 text from the clipboard (or the primary selection)
local function get_clipboard(clip)
if platform == 'x11' then
local res = utils.subprocess({
args = { 'xclip', '-selection', clip and 'clipboard' or 'primary', '-out' },
playback_only = false,
})
if not res.error then
return res.stdout
end
elseif platform == 'wayland' then
local res = utils.subprocess({
args = { 'wl-paste', clip and '-n' or '-np' },
playback_only = false,
})
if not res.error then
return res.stdout
end
elseif platform == 'windows' then
local res = utils.subprocess({
args = { 'powershell', '-NoProfile', '-Command', [[& {
Trap {
Write-Error -ErrorRecord $_
Exit 1
}
$clip = ""
if (Get-Command "Get-Clipboard" -errorAction SilentlyContinue) {
$clip = Get-Clipboard -Raw -Format Text -TextFormatType UnicodeText
} else {
Add-Type -AssemblyName PresentationCore
$clip = [Windows.Clipboard]::GetText()
}
$clip = $clip -Replace "`r",""
$u8clip = [System.Text.Encoding]::UTF8.GetBytes($clip)
[Console]::OpenStandardOutput().Write($u8clip, 0, $u8clip.Length)
}]] },
playback_only = false,
})
if not res.error then
return res.stdout
end
elseif platform == 'darwin' then
local res = utils.subprocess({
args = { 'pbpaste' },
playback_only = false,
})
if not res.error then
return res.stdout
end
end
return ''
end
-- Paste text from the window-system's clipboard. 'clip' determines whether the
-- clipboard or the primary selection buffer is used (on X11 and Wayland only.)
local function paste(clip)
local text = get_clipboard(clip)
local before_cur = line:sub(1, cursor - 1)
local after_cur = line:sub(cursor)
line = before_cur .. text .. after_cur
cursor = cursor + text:len()
handle_edit()
end
local function text_input(info)
if info.key_text and (info.event == "press" or info.event == "down"
or info.event == "repeat")
then
handle_char_input(info.key_text)
end
end
local function command_list()
local commands = {}
for i, command in ipairs(mp.get_property_native('command-list')) do
commands[i] = command.name
end
return commands
end
local function property_list()
local properties = mp.get_property_native('property-list')
for _, sub_property in pairs({'video', 'audio', 'sub', 'sub2'}) do
properties[#properties + 1] = 'current-tracks/' .. sub_property
end
for _, option in ipairs(mp.get_property_native('options')) do
properties[#properties + 1] = 'options/' .. option
properties[#properties + 1] = 'file-local-options/' .. option
properties[#properties + 1] = 'option-info/' .. option
for _, sub_property in pairs({
'name', 'type', 'set-from-commandline', 'set-locally',
'expects-file', 'default-value', 'min', 'max', 'choices',
}) do
properties[#properties + 1] = 'option-info/' .. option .. '/' ..
sub_property
end
end
return properties
end
local function profile_list()
local profiles = {}
for i, profile in ipairs(mp.get_property_native('profile-list')) do
profiles[i] = profile.name
end
return profiles
end
local function list_option_list()
local options = {}
-- Don't log errors for renamed and removed properties.
-- (Just mp.enable_messages('fatal') still logs them to the terminal.)
local msg_level_backup = mp.get_property('msg-level')
mp.set_property('msg-level', msg_level_backup == '' and 'cplayer=no'
or msg_level_backup .. ',cplayer=no')
for _, option in pairs(mp.get_property_native('options')) do
if mp.get_property('option-info/' .. option .. '/type', ''):find(' list$') then
options[#options + 1] = option
end
end
mp.set_property('msg-level', msg_level_backup)
return options
end
local function list_option_action_list(option)
local type = mp.get_property('option-info/' .. option .. '/type')
if type == 'Key/value list' then
return {'add', 'append', 'set', 'remove'}
end
if type == 'String list' or type == 'Object settings list' then
return {'add', 'append', 'clr', 'pre', 'set', 'remove', 'toggle'}
end
end
local function list_option_value_list(option)
local values = mp.get_property_native(option)
if type(values) ~= 'table' then
return
end
if type(values[1]) ~= 'table' then
return values
end
for i, value in ipairs(values) do
values[i] = value.label and '@' .. value.label or value.name
end
return values
end
local function has_file_argument(candidate_command)
for _, command in pairs(mp.get_property_native('command-list')) do
if command.name == candidate_command then
return command.args[1] and
(command.args[1].name == 'filename' or command.args[1].name == 'url')
end
end
end
local function file_list(directory)
if directory == '' then
directory = '.'
end
local files = utils.readdir(directory, 'files') or {}
for _, dir in pairs(utils.readdir(directory, 'dirs') or {}) do
files[#files + 1] = dir .. path_separator
end
return files
end
local function handle_file_completion(before_cur, path_pos)
local directory, last_component_pos =
before_cur:sub(path_pos):match('(.-)()[^' .. path_separator ..']*$')
completion_pos = path_pos + last_component_pos - 1
if directory:find('^~' .. path_separator) then
local home = mp.command_native({'expand-path', '~/'})
before_cur = before_cur:sub(1, completion_pos - #directory - 1) ..
home ..
before_cur:sub(completion_pos - #directory + 1)
directory = home .. directory:sub(2)
completion_pos = completion_pos + #home - 1
end
-- Don't use completion_append for file completion to not add quotes after
-- directories whose entries you may want to complete afterwards.
completion_append = ''
return file_list(directory), before_cur
end
local function handle_choice_completion(option, before_cur, path_pos)
local info = mp.get_property_native('option-info/' .. option, {})
if info.type == 'Flag' then
return { 'no', 'yes' }, before_cur
end
if info['expects-file'] then
return handle_file_completion(before_cur, path_pos)
end
-- Fix completing the empty value for --dscale and --cscale.
if info.choices and info.choices[1] == '' and completion_append == '' then
info.choices[1] = '""'
end
return info.choices, before_cur
end
local function common_prefix_length(s1, s2)
local common_count = 0
for i = 1, #s1 do
if s1:byte(i) ~= s2:byte(i) then
break
end
common_count = common_count + 1
end
return common_count
end
local function max_overlap_length(s1, s2)
for s1_offset = 0, #s1 - 1 do
local match = true
for i = 1, #s1 - s1_offset do
if s1:byte(s1_offset + i) ~= s2:byte(i) then
match = false
break
end
end
if match then
return #s1 - s1_offset
end
end
return 0
end
-- If str starts with the first or last characters of prefix, strip them.
local function strip_common_characters(str, prefix)
return str:sub(1 + math.max(
common_prefix_length(prefix, str),
max_overlap_length(prefix, str)))
end
-- Find the longest common case-sensitive prefix of the entries in "list".
local function find_common_prefix(list)
local prefix = list[1]
for i = 2, #list do
prefix = prefix:sub(1, common_prefix_length(prefix, list[i]))
end
return prefix
end
-- Return the entries of "list" beginning with "part" and the longest common
-- prefix of the matches.
local function complete_match(part, list)
local completions = {}
for _, candidate in pairs(list) do
if candidate:sub(1, part:len()) == part then
completions[#completions + 1] = candidate
end
end
local prefix = find_common_prefix(completions)
if opts.case_sensitive then
return completions, prefix or part
end
completions = {}
local lower_case_completions = {}
local lower_case_part = part:lower()
for _, candidate in pairs(list) do
if candidate:sub(1, part:len()):lower() == lower_case_part then
completions[#completions + 1] = candidate
lower_case_completions[#lower_case_completions + 1] = candidate:lower()
end
end
local lower_case_prefix = find_common_prefix(lower_case_completions)
-- Behave like GNU readline with completion-ignore-case On.
-- part = 'fooBA', completions = {'foobarbaz', 'fooBARqux'} =>
-- prefix = 'fooBARqux', lower_case_prefix = 'foobar', return 'fooBAR'
if prefix then
return completions, prefix:sub(1, lower_case_prefix:len())
end
-- part = 'fooba', completions = {'fooBARbaz', 'fooBarqux'} =>
-- prefix = nil, lower_case_prefix ='foobar', return 'fooBAR'
if lower_case_prefix then
return completions, completions[1]:sub(1, lower_case_prefix:len())
end
return {}, part
end
local function cycle_through_suggestions(backwards)
selected_suggestion_index = selected_suggestion_index + (backwards and -1 or 1)
if selected_suggestion_index > #suggestion_buffer then
selected_suggestion_index = 1
elseif selected_suggestion_index < 1 then
selected_suggestion_index = #suggestion_buffer
end
local before_cur = line:sub(1, completion_pos - 1) ..
suggestion_buffer[selected_suggestion_index] .. completion_append
line = before_cur .. strip_common_characters(line:sub(cursor), completion_append)
cursor = before_cur:len() + 1
update()
end
-- Complete the option or property at the cursor (TAB)
local function complete(backwards)
if #suggestion_buffer > 0 then
cycle_through_suggestions(backwards)
return
end
if input_caller then
completion_old_line = line
completion_old_cursor = cursor
mp.commandv('script-message-to', input_caller, 'input-event',
'complete', utils.format_json({line:sub(1, cursor - 1)}))
return
end
local before_cur = line:sub(1, cursor - 1)
local after_cur = line:sub(cursor)
local tokens = {}
local first_useful_token_index = 1
local completions
local begin_new_token = true
local last_quote
for pos, char in before_cur:gmatch('()(.)') do
if char:find('[%s;]') and not last_quote then
begin_new_token = true
if char == ';' then
first_useful_token_index = #tokens + 1
end
elseif begin_new_token then
tokens[#tokens + 1] = { text = char, pos = pos }
last_quote = char:match('["\']')
begin_new_token = false
else
tokens[#tokens].text = tokens[#tokens].text .. char
if char == last_quote then
last_quote = nil
end
end
end
completion_append = last_quote or ''
-- Strip quotes from tokens.
for _, token in pairs(tokens) do
if token.text:find('^"') then
token.text = token.text:sub(2):gsub('"$', '')
token.pos = token.pos + 1
elseif token.text:find("^'") then
token.text = token.text:sub(2):gsub("'$", '')
token.pos = token.pos + 1
end
end
-- Skip command prefixes because it is not worth lumping them together with
-- command completions when they are useless for interactive usage.
local command_prefixes = {
['osd-auto'] = true, ['no-osd'] = true, ['osd-bar'] = true,
['osd-msg'] = true, ['osd-msg-bar'] = true, ['raw'] = true,
['expand-properties'] = true, ['repeatable'] = true,
['nonrepeatable'] = true, ['nonscalable'] = true,
['async'] = true, ['sync'] = true
}
while tokens[first_useful_token_index] and
command_prefixes[tokens[first_useful_token_index].text] do
first_useful_token_index = first_useful_token_index + 1
end
-- Add an empty token if the cursor is after whitespace to simplify
-- comparisons.
if before_cur == '' or before_cur:find('[%s;]$') then
tokens[#tokens + 1] = { text = "", pos = cursor }
end
local add_actions = {
['add'] = true, ['append'] = true, ['pre'] = true, ['set'] = true
}
local first_useful_token = tokens[first_useful_token_index]
completion_pos = before_cur:match('${[=>]?()[%w_/-]*$')
if completion_pos then
completions = property_list()
completion_append = '} '
elseif #tokens == first_useful_token_index then
completions = command_list()
completions[#completions + 1] = 'help'
completion_pos = first_useful_token.pos
completion_append = completion_append .. ' '
elseif #tokens == first_useful_token_index + 1 then
if first_useful_token.text == 'set' or
first_useful_token.text == 'add' or
first_useful_token.text == 'cycle' or
first_useful_token.text == 'cycle-values' or
first_useful_token.text == 'multiply' then
completions = property_list()
completion_pos = tokens[first_useful_token_index + 1].pos
completion_append = completion_append .. ' '
elseif first_useful_token.text == 'help' then
completions = command_list()
completion_pos = tokens[first_useful_token_index + 1].pos
elseif first_useful_token.text == 'apply-profile' then
completions = profile_list()
completion_pos = tokens[first_useful_token_index + 1].pos
elseif first_useful_token.text == 'change-list' then
completions = list_option_list()
completion_pos = tokens[first_useful_token_index + 1].pos
completion_append = completion_append .. ' '
elseif first_useful_token.text == 'vf' or
first_useful_token.text == 'af' then
completions = list_option_action_list(first_useful_token.text)
completion_pos = tokens[first_useful_token_index + 1].pos
completion_append = completion_append .. ' '
elseif has_file_argument(first_useful_token.text) then
completions, before_cur =
handle_file_completion(before_cur, tokens[first_useful_token_index + 1].pos)
end
elseif first_useful_token.text == 'cycle-values' then
completion_pos = tokens[#tokens].pos
completion_append = completion_append .. ' '
completions, before_cur =
handle_choice_completion(tokens[first_useful_token_index + 1].text,
before_cur, tokens[#tokens].pos)
elseif #tokens == first_useful_token_index + 2 then
if first_useful_token.text == 'set' then
completion_pos = tokens[#tokens].pos
completions, before_cur =
handle_choice_completion(tokens[first_useful_token_index + 1].text,
before_cur,
tokens[first_useful_token_index + 2].pos)
elseif first_useful_token.text == 'change-list' then
completions = list_option_action_list(tokens[first_useful_token_index + 1].text)
completion_pos = tokens[first_useful_token_index + 2].pos
completion_append = completion_append .. ' '
elseif first_useful_token.text == 'vf' or
first_useful_token.text == 'af' then
if add_actions[tokens[first_useful_token_index + 1].text] then
completion_pos = tokens[#tokens].pos
completions, before_cur =
handle_choice_completion(first_useful_token.text,
before_cur, tokens[#tokens].pos)
elseif tokens[first_useful_token_index + 1].text == 'remove' then
completions = list_option_value_list(first_useful_token.text)
completion_pos = tokens[#tokens].pos
end
end
elseif #tokens == first_useful_token_index + 3 then
if first_useful_token.text == 'change-list' then
if add_actions[tokens[first_useful_token_index + 2].text] then
completion_pos = tokens[#tokens].pos
completions, before_cur =
handle_choice_completion(tokens[first_useful_token_index + 1].text,
before_cur, tokens[#tokens].pos)
elseif tokens[first_useful_token_index + 2].text == 'remove' then
completion_pos = tokens[#tokens].pos
completions = list_option_value_list(tokens[first_useful_token_index + 1].text)
end
elseif first_useful_token.text == 'dump-cache' then
completions, before_cur =
handle_file_completion(before_cur,
tokens[first_useful_token_index + 3].pos)
end
end
if completions == nil then
return
end
local prefix
completions, prefix =
complete_match(before_cur:sub(completion_pos), completions)
if #completions == 1 then
prefix = prefix .. completion_append
after_cur = strip_common_characters(after_cur, completion_append)
else
table.sort(completions)
suggestion_buffer = completions
selected_suggestion_index = 0
end
before_cur = before_cur:sub(1, completion_pos - 1) .. prefix
cursor = before_cur:len() + 1
line = before_cur .. after_cur
update()
end
-- List of input bindings. This is a weird mashup between common GUI text-input
-- bindings and readline bindings.
local function get_bindings()
local bindings = {
{ 'esc', function() set_active(false) end },
{ 'ctrl+[', function() set_active(false) end },
{ 'enter', handle_enter },
{ 'kp_enter', handle_enter },
{ 'shift+enter', function() handle_char_input('\n') end },
{ 'ctrl+j', handle_enter },
{ 'ctrl+m', handle_enter },
{ 'bs', handle_backspace },
{ 'shift+bs', handle_backspace },
{ 'ctrl+h', handle_backspace },
{ 'del', handle_del },
{ 'shift+del', handle_del },
{ 'ins', handle_ins },
{ 'shift+ins', function() paste(false) end },
{ 'mbtn_mid', function() paste(false) end },
{ 'mbtn_right', function() set_active(false) end },
{ 'left', function() prev_char() end },
{ 'ctrl+b', function() page_up_or_prev_char() end },
{ 'right', function() next_char() end },
{ 'ctrl+f', function() page_down_or_next_char() end},
{ 'up', function() move_history(-1) end },
{ 'ctrl+p', function() move_history(-1) end },
{ 'wheel_up', function() move_history(-1, true) end },
{ 'down', function() move_history(1) end },
{ 'ctrl+n', function() move_history(1) end },
{ 'wheel_down', function() move_history(1, true) end },
{ 'wheel_left', function() end },
{ 'wheel_right', function() end },
{ 'ctrl+left', prev_word },
{ 'alt+b', prev_word },
{ 'ctrl+right', next_word },
{ 'alt+f', next_word },
{ 'tab', complete },
{ 'ctrl+i', complete },
{ 'shift+tab', function() complete(true) end },
{ 'ctrl+a', go_home },
{ 'home', go_home },
{ 'ctrl+e', go_end },
{ 'end', go_end },
{ 'pgup', handle_pgup },
{ 'pgdwn', handle_pgdown },
{ 'ctrl+r', search_history },
{ 'ctrl+c', clear },
{ 'ctrl+d', maybe_exit },
{ 'ctrl+k', del_to_eol },
{ 'ctrl+l', clear_log_buffer },
{ 'ctrl+u', del_to_start },
{ 'ctrl+v', function() paste(true) end },
{ 'meta+v', function() paste(true) end },
{ 'ctrl+bs', del_word },
{ 'ctrl+w', del_word },
{ 'ctrl+del', del_next_word },
{ 'alt+d', del_next_word },
{ 'kp_dec', function() handle_char_input('.') end },
{ 'kp_add', function() handle_char_input('+') end },
{ 'kp_subtract', function() handle_char_input('-') end },
{ 'kp_multiply', function() handle_char_input('*') end },
{ 'kp_divide', function() handle_char_input('/') end },
}
for i = 0, 9 do
bindings[#bindings + 1] =
{'kp' .. i, function() handle_char_input('' .. i) end}
end
return bindings
end
local function define_key_bindings()
if #key_bindings > 0 then
return
end
for _, bind in ipairs(get_bindings()) do
if not (dont_bind_up_down and (bind[1] == 'up' or bind[1] == 'down')) then
-- Generate arbitrary name for removing the bindings later.
local name = "_console_" .. (#key_bindings + 1)
key_bindings[#key_bindings + 1] = name
mp.add_forced_key_binding(bind[1], name, bind[2], {repeatable = true})
end
end
mp.add_forced_key_binding("any_unicode", "_console_text", text_input,
{repeatable = true, complex = true})
key_bindings[#key_bindings + 1] = "_console_text"
end
local function undefine_key_bindings()
for _, name in ipairs(key_bindings) do
mp.remove_key_binding(name)
end
key_bindings = {}
end
-- Set the REPL visibility ("enable", Esc)
set_active = function (active)
if active == repl_active then return end
if active then
repl_active = true
insert_mode = false
define_key_bindings()
if not input_caller then
prompt = default_prompt
id = default_id
history = histories[id]
history_pos = #history + 1
mp.enable_messages('terminal-default')
end
elseif searching_history then
searching_history = false
line = ''
cursor = 1
selectable_items = nil
log_buffers[id] = {}
unbind_mouse()
else
repl_active = false
suggestion_buffer = {}
undefine_key_bindings()
mp.enable_messages('silent:terminal-default')
if input_caller then
mp.commandv('script-message-to', input_caller, 'input-event',
'closed', utils.format_json({line, cursor}))
input_caller = nil
line = ''
cursor = 1
selectable_items = nil
default_item = nil
dont_bind_up_down = false
unbind_mouse()
end
collectgarbage()
end
update()
end
-- Show the repl if hidden and replace its contents with 'text'
-- (script-message-to repl type)
local function show_and_type(text, cursor_pos)
text = text or ''
cursor_pos = tonumber(cursor_pos)
-- Save the line currently being edited, just in case
if line ~= text and line ~= '' and history[#history] ~= line then
history_add(line)
end
line = text
if cursor_pos ~= nil and cursor_pos >= 1
and cursor_pos <= line:len() + 1 then
cursor = math.floor(cursor_pos)
else
cursor = line:len() + 1
end
history_pos = #history + 1
insert_mode = false
if repl_active then
update()
else
set_active(true)
end
end
-- Add a global binding for enabling the REPL. While it's enabled, its bindings
-- will take over and it can be closed with ESC.
mp.add_key_binding(nil, 'enable', function()
set_active(true)
end)
mp.register_script_message('disable', function()
set_active(false)
end)
-- Add a script-message to show the REPL and fill it with the provided text
mp.register_script_message('type', function(text, cursor_pos)
show_and_type(text, cursor_pos)
end)
mp.register_script_message('get-input', function (script_name, args)
if repl_active then
return
end
input_caller = script_name
args = utils.parse_json(args)
prompt = args.prompt or default_prompt
line = args.default_text or ''
cursor = args.cursor_position or line:len() + 1
id = args.id or script_name .. prompt
dont_bind_up_down = args.dont_bind_up_down
if histories[id] == nil then
histories[id] = {}
log_buffers[id] = {}
end
history = histories[id]
history_pos = #history + 1
selectable_items = args.items
if selectable_items then
matches = {}
selected_match = args.default_item or 1
default_item = args.default_item
local max_lines = calculate_max_log_lines()
first_match_to_print = math.max(1, selected_match - math.floor(max_lines / 2) + 1)
if first_match_to_print > #selectable_items - max_lines + 2 then
first_match_to_print = math.max(1, #selectable_items - max_lines + 1)
end
for i, item in ipairs(selectable_items) do
matches[i] = { index = i, text = item }
end
bind_mouse()
end
set_active(true)
mp.commandv('script-message-to', input_caller, 'input-event', 'opened')
end)
mp.register_script_message('log', function (message)
-- input.get's edited handler is invoked after submit, so avoid modifying
-- the default log.
if input_caller == nil then
return
end
message = utils.parse_json(message)
log_add(message.text,
message.error and styles.error or message.style,
message.error and terminal_styles.error or message.terminal_style)
end)
mp.register_script_message('set-log', function (log)
if input_caller == nil then
return
end
log = utils.parse_json(log)
log_buffers[id] = {}
for i = 1, #log do
if type(log[i]) == 'table' then
log[i].text = log[i].text
log[i].style = log[i].style or ''
log[i].terminal_style = log[i].terminal_style or ''
log_buffers[id][i] = log[i]
else
log_buffers[id][i] = {
text = log[i],
style = '',
terminal_style = '',
}
end
end
update()
end)
mp.register_script_message('complete', function(list, start_pos)
if line ~= completion_old_line or cursor ~= completion_old_cursor then
return
end
local completions, prefix = complete_match(line:sub(start_pos, cursor),
utils.parse_json(list))
local before_cur = line:sub(1, start_pos - 1) .. prefix
local after_cur = line:sub(cursor)
cursor = before_cur:len() + 1
line = before_cur .. after_cur
if #completions > 1 then
suggestion_buffer = completions
selected_suggestion_index = 0
completion_pos = start_pos
completion_append = ''
end
update()
end)
-- Redraw the REPL when the OSD size changes. This is needed because the
-- PlayRes of the OSD will need to be adjusted.
mp.observe_property('osd-width', 'native', update)
mp.observe_property('osd-height', 'native', update)
mp.observe_property('display-hidpi-scale', 'native', update)
mp.observe_property('focused', 'native', update)
mp.observe_property("user-data/osc/margins", "native", function(_, val)
if type(val) == "table" and type(val.t) == "number" and type(val.b) == "number" then
global_margins = val
else
global_margins = { t = 0, b = 0 }
end
update()
end)
-- Enable log messages. In silent mode, mpv will queue log messages in a buffer
-- until enable_messages is called again without the silent: prefix.
mp.enable_messages('silent:terminal-default')
mp.register_event('log-message', function(e)
-- Ignore log messages from the OSD because of paranoia, since writing them
-- to the OSD could generate more messages in an infinite loop.
if e.prefix:sub(1, 3) == 'osd' then return end
-- Ignore messages output by this script.
if e.prefix == mp.get_script_name() then return end
-- Ignore buffer overflow warning messages. Overflowed log messages would
-- have been offscreen anyway.
if e.prefix == 'overflow' then return end
-- Filter out trace-level log messages, even if the terminal-default log
-- level includes them. These aren't too useful for an on-screen display
-- without scrollback and they include messages that are generated from the
-- OSD display itself.
if e.level == 'trace' then return end
-- Use color for debug/v/warn/error/fatal messages.
log_add('[' .. e.prefix .. '] ' .. e.text:sub(1, -2), styles[e.level],
terminal_styles[e.level])
end)
collectgarbage()