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-- Copyright 2007-2011 Mitchell mitchell<att>caladbolg.net. See LICENSE.
local L = locale.localize
local gui = gui
-- Helper function for printing messages to buffers.
-- @see gui._print
local function _print(buffer_type, ...)
if buffer._type ~= buffer_type then
for i, view in ipairs(_VIEWS) do
if view.buffer._type == buffer_type then gui.goto_view(i) break end
end
if view.buffer._type ~= buffer_type then
view:split()
for i, buffer in ipairs(_BUFFERS) do
if buffer._type == buffer_type then view:goto_buffer(i) break end
end
if buffer._type ~= buffer_type then
new_buffer()._type = buffer_type
events.emit(events.FILE_OPENED)
end
end
end
local args, n = {...}, select('#', ...)
for i = 1, n do args[i] = tostring(args[i]) end
buffer:append_text(table.concat(args, '\t'))
buffer:append_text('\n')
buffer:goto_pos(buffer.length)
buffer:set_save_point()
end
-- LuaDoc is in core/.gui.luadoc.
function gui._print(buffer_type, ...) pcall(_print, buffer_type, ...) end
-- LuaDoc is in core/.gui.luadoc.
function gui.print(...) gui._print(L('[Message Buffer]'), ...) end
-- LuaDoc is in core/.gui.luadoc.
function gui.filteredlist(title, columns, items, int_return, ...)
local out = gui.dialog('filteredlist',
'--title', title,
'--button1', 'gtk-ok',
'--button2', 'gtk-cancel',
'--no-newline',
int_return and '' or '--string-output',
'--columns', columns,
'--items', items,
...)
local patt = int_return and '^(%-?%d+)\n(%d+)$' or '^([^\n]+)\n(.+)$'
local response, value = out:match(patt)
if response == (int_return and '1' or 'gtk-ok') then
return not int_return and value or tonumber(value)
end
end
-- LuaDoc is in core/.gui.luadoc.
function gui.switch_buffer()
local columns, items = { L('Name'), L('File') }, {}
for _, buffer in ipairs(_BUFFERS) do
local filename = buffer.filename or buffer._type or L('Untitled')
items[#items + 1] = (buffer.dirty and '*' or '')..filename:match('[^/\\]+$')
items[#items + 1] = filename
end
local i = gui.filteredlist(L('Switch Buffers'), columns, items, true)
if i then view:goto_buffer(i + 1) end
end
-- LuaDoc is in core/.gui.luadoc.
function gui.goto_file(filename, split, preferred_view)
if #_VIEWS == 1 and view.buffer.filename ~= filename and split then
view:split()
else
local other_view = _VIEWS[preferred_view]
for i, v in ipairs(_VIEWS) do
if v.buffer.filename == filename then gui.goto_view(i) return end
if not other_view and v ~= view then other_view = i end
end
if other_view then gui.goto_view(other_view) end
end
io.open_file(filename)
end
local THEME
-- LuaDoc is in core/.gui.luadoc.
function gui.set_theme(name)
if not name then
-- Read theme from ~/.textadept/theme, defaulting to 'light'.
local f = io.open(_USERHOME..'/theme', 'rb')
if f then
name = f:read('*line'):match('[^\r\n]+')
f:close()
end
if not name or name == '' then name = 'light' end
end
-- Get the path of the theme.
local theme
if not name:find('[/\\]') then
if lfs.attributes(_USERHOME..'/themes/'..name) then
theme = _USERHOME..'/themes/'..name
elseif lfs.attributes(_HOME..'/themes/'..name) then
theme = _HOME..'/themes/'..name
end
elseif lfs.attributes(name) then
theme = name
end
if not theme then error(('"%s" %s'):format(name, L("theme not found."))) end
if buffer and view then
local current_buffer, current_view = _BUFFERS[buffer], _VIEWS[view]
for i in ipairs(_BUFFERS) do
view:goto_buffer(i)
buffer.property['lexer.lpeg.color.theme'] = theme..'/lexer.lua'
local lexer = buffer:get_lexer()
buffer:set_lexer('null') -- lexer needs to be changed to reset styles
buffer:set_lexer(lexer)
local ok, err = pcall(dofile, theme..'/buffer.lua')
if not ok then io.stderr:write(err) end
end
view:goto_buffer(current_buffer)
for i in ipairs(_VIEWS) do
gui.goto_view(i)
local lexer = buffer:get_lexer()
buffer:set_lexer('null') -- lexer needs to be changed to reset styles
buffer:set_lexer(lexer)
local ok, err = pcall(dofile, theme..'/view.lua')
if not ok then io.stderr:write(err) end
end
gui.goto_view(current_view)
end
THEME = theme
end
-- LuaDoc is in core/.gui.luadoc.
function gui.select_theme()
local themes, themes_found = {}, {}
for theme in lfs.dir(_HOME..'/themes') do
if not theme:find('^%.%.?$') then themes_found[theme] = true end
end
if lfs.attributes(_USERHOME..'/themes') then
for theme in lfs.dir(_USERHOME..'/themes') do
if not theme:find('^%.%.?$') then themes_found[theme] = true end
end
end
for theme in pairs(themes_found) do themes[#themes + 1] = theme end
table.sort(themes)
local theme = gui.filteredlist(L('Select Theme'), L('Name'), themes)
if theme then gui.set_theme(theme) end
end
local connect = events.connect
-- Sets default properties for a Scintilla window.
connect(events.VIEW_NEW, function()
local buffer = buffer
local c = _SCINTILLA.constants
-- Allow redefinitions of these Scintilla key commands.
local ctrl_keys = {
'[', ']', '/', '\\', 'Z', 'Y', 'X', 'C', 'V', 'A', 'L', 'T', 'D', 'U'
}
local ctrl_shift_keys = { 'L', 'T', 'U', 'Z' }
for _, key in ipairs(ctrl_keys) do
buffer:clear_cmd_key(string.byte(key), c.SCMOD_CTRL)
end
for _, key in ipairs(ctrl_shift_keys) do
buffer:clear_cmd_key(string.byte(key), c.SCMOD_CTRL + c.SCMOD_SHIFT)
end
-- Load theme.
local ok, err = pcall(dofile, THEME..'/view.lua')
if not ok then io.stderr:write(err) end
end)
connect(events.VIEW_NEW, function() events.emit(events.UPDATE_UI) end)
local SETDIRECTFUNCTION = _SCINTILLA.properties.direct_function[1]
local SETDIRECTPOINTER = _SCINTILLA.properties.doc_pointer[2]
local SETLEXERLANGUAGE = _SCINTILLA.functions.set_lexer_language[1]
local function set_properties()
local buffer = buffer
-- Lexer.
buffer:set_lexer_language('lpeg')
buffer:private_lexer_call(SETDIRECTFUNCTION, buffer.direct_function)
buffer:private_lexer_call(SETDIRECTPOINTER, buffer.direct_pointer)
buffer:private_lexer_call(SETLEXERLANGUAGE, 'container')
buffer.style_bits = 8
-- Properties.
buffer.property['textadept.home'] = _HOME
buffer.property['lexer.lpeg.home'] = _LEXERPATH
buffer.property['lexer.lpeg.script'] = _HOME..'/lexers/lexer.lua'
buffer.property['lexer.lpeg.color.theme'] = THEME..'/lexer.lua'
-- Buffer.
buffer.code_page = _SCINTILLA.constants.SC_CP_UTF8
-- Load theme.
local ok, err = pcall(dofile, THEME..'/buffer.lua')
if not ok then io.stderr:write(err) end
end
-- Sets default properties for a Scintilla document.
connect(events.BUFFER_NEW, function()
-- Normally when an error occurs, a new buffer is created with the error
-- message, but if an error occurs here, this event would be called again and
-- again, erroring each time resulting in an infinite loop; print error to
-- stderr instead.
local ok, err = pcall(set_properties)
if not ok then io.stderr:write(err) end
end)
connect(events.BUFFER_NEW, function() events.emit(events.UPDATE_UI) end)
-- Sets the title of the Textadept window to the buffer's filename.
-- @param buffer The global buffer.
local function set_title(buffer)
local filename = buffer.filename or buffer._type or L('Untitled')
gui.title = string.format('%s %s Textadept (%s)', filename:match('[^/\\]+$'),
buffer.dirty and '*' or '-', filename)
end
-- Changes Textadept title to show the buffer as being "clean".
connect(events.SAVE_POINT_REACHED, function()
buffer.dirty = false
set_title(buffer)
end)
-- Changes Textadept title to show thee buffer as "dirty".
connect(events.SAVE_POINT_LEFT, function()
buffer.dirty = true
set_title(buffer)
end)
-- Open uri(s).
connect(events.URI_DROPPED, function(utf8_uris)
for utf8_uri in utf8_uris:gmatch('[^\r\n]+') do
if utf8_uri:find('^file://') then
utf8_uri = utf8_uri:match('^file://([^\r\n]+)')
utf8_uri = utf8_uri:gsub('%%(%x%x)', function(hex)
return string.char(tonumber(hex, 16))
end)
if WIN32 then utf8_uri = utf8_uri:sub(2, -1) end -- ignore leading '/'
local uri = utf8_uri:iconv(_CHARSET, 'UTF-8')
if lfs.attributes(uri).mode ~= 'directory' then io.open_file(utf8_uri) end
end
end
end)
connect(events.APPLEEVENT_ODOC,
function(uri) return events.emit(events.URI_DROPPED, 'file://'..uri) end)
local string_format = string.format
local EOLs = { L('CRLF'), L('CR'), L('LF') }
local GETLEXERLANGUAGE = _SCINTILLA.functions.get_lexer_language[1]
-- Sets docstatusbar text.
connect(events.UPDATE_UI, function()
local buffer = buffer
local pos = buffer.current_pos
local line, max = buffer:line_from_position(pos) + 1, buffer.line_count
local col = buffer.column[pos] + 1
local lexer = buffer:private_lexer_call(GETLEXERLANGUAGE)
local eol = EOLs[buffer.eol_mode + 1]
local tabs = string_format('%s %d', buffer.use_tabs and L('Tabs:') or
L('Spaces:'), buffer.indent)
local enc = buffer.encoding or ''
gui.docstatusbar_text =
string_format('%s %d/%d %s %d %s %s %s %s', L('Line:'), line,
max, L('Col:'), col, lexer, eol, tabs, enc)
end)
-- Toggles folding.
connect(events.MARGIN_CLICK, function(margin, pos, modifiers)
if margin == 2 then buffer:toggle_fold(buffer:line_from_position(pos)) end
end)
connect(events.BUFFER_NEW, function() set_title(buffer) end)
-- Save buffer properties.
connect(events.BUFFER_BEFORE_SWITCH, function()
local buffer = buffer
-- Save view state.
buffer._anchor = buffer.anchor
buffer._current_pos = buffer.current_pos
buffer._first_visible_line = buffer.first_visible_line
-- Save fold state.
buffer._folds = {}
local folds = buffer._folds
local i = buffer:contracted_fold_next(0)
while i >= 0 do
folds[#folds + 1] = i
i = buffer:contracted_fold_next(i + 1)
end
end)
-- Restore buffer properties.
connect(events.BUFFER_AFTER_SWITCH, function()
local buffer = buffer
if not buffer._folds then return end
-- Restore fold state.
for _, i in ipairs(buffer._folds) do buffer:toggle_fold(i) end
-- Restore view state.
buffer:set_sel(buffer._anchor, buffer._current_pos)
buffer:line_scroll(0,
buffer:visible_from_doc_line(buffer._first_visible_line) -
buffer.first_visible_line)
end)
-- Updates titlebar and statusbar.
connect(events.BUFFER_AFTER_SWITCH, function()
set_title(buffer)
events.emit(events.UPDATE_UI)
end)
-- Updates titlebar and statusbar.
connect(events.VIEW_AFTER_SWITCH, function()
set_title(buffer)
events.emit(events.UPDATE_UI)
end)
connect(events.RESET_AFTER, function() gui.statusbar_text = 'Lua reset' end)
-- Prompts for confirmation if any buffers are dirty.
connect(events.QUIT, function()
local list = {}
for _, buffer in ipairs(_BUFFERS) do
if buffer.dirty then
list[#list + 1] = buffer.filename or buffer._type or L('Untitled')
end
end
if #list > 0 and gui.dialog('msgbox',
'--title', L('Quit without saving?'),
'--text', L('The following buffers are unsaved:'),
'--informative-text', table.concat(list, '\n'),
'--button1', 'gtk-cancel',
'--button2', L('Quit _without saving'),
'--no-newline') ~= '2' then
return false
end
return true
end)
connect(events.ERROR, function(...) gui._print(L('[Error Buffer]'), ...) end)
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