214 lines
7.1 KiB
Lua
214 lines
7.1 KiB
Lua
---------------------------------------------------------------------------
|
|
-- @author Antonio Terceiro
|
|
-- @copyright 2009, 2011-2012 Antonio Terceiro, Alexander Yakushev
|
|
-- @release @AWESOME_VERSION@
|
|
---------------------------------------------------------------------------
|
|
|
|
-- Grab environment
|
|
local io = io
|
|
local table = table
|
|
local ipairs = ipairs
|
|
local string = string
|
|
local awful_util = require("awful.util")
|
|
local theme = require("beautiful")
|
|
|
|
-- Utility module for menubar
|
|
-- menubar.utils
|
|
local utils = {}
|
|
|
|
-- NOTE: This icons/desktop files module was written according to the
|
|
-- following freedesktop.org specifications:
|
|
-- Icons: http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-0.11.html
|
|
-- Desktop files: http://standards.freedesktop.org/desktop-entry-spec/desktop-entry-spec-1.0.html
|
|
|
|
-- Options section
|
|
|
|
--- Terminal which applications that need terminal would open in.
|
|
utils.terminal = 'xterm'
|
|
|
|
-- The default icon for applications that don't provide any icon in
|
|
-- their .desktop files.
|
|
local default_icon = nil
|
|
|
|
--- Name of the WM for the OnlyShownIn entry in the .desktop file.
|
|
utils.wm_name = "awesome"
|
|
|
|
-- Private section
|
|
|
|
local all_icon_sizes = {
|
|
'128x128' ,
|
|
'96x96',
|
|
'72x72',
|
|
'64x64',
|
|
'48x48',
|
|
'36x36',
|
|
'32x32',
|
|
'24x24',
|
|
'22x22',
|
|
'16x16'
|
|
}
|
|
|
|
-- List of supported icon formats. Ignore SVG because Awesome doesn't
|
|
-- support it.
|
|
local icon_formats = { "png", "xpm" }
|
|
|
|
-- Check whether the icon format is supported.
|
|
-- @param icon_file Filename of the icon.
|
|
-- @return true if format is supported, false otherwise.
|
|
local function is_format_supported(icon_file)
|
|
for _, f in ipairs(icon_formats) do
|
|
if icon_file:match('%.' .. f) then
|
|
return true
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
--- Lookup an icon in different folders of the filesystem.
|
|
-- @param icon_file Short or full name of the icon.
|
|
-- @return full name of the icon.
|
|
function utils.lookup_icon(icon_file)
|
|
if not icon_file or icon_file == "" then
|
|
return default_icon
|
|
end
|
|
|
|
if icon_file:sub(1, 1) == '/' and is_format_supported(icon_file) then
|
|
-- If the path to the icon is absolute and its format is
|
|
-- supported, do not perform a lookup.
|
|
return icon_file
|
|
else
|
|
local icon_path = {}
|
|
local icon_theme_paths = {}
|
|
local icon_theme = theme.icon_theme
|
|
if icon_theme then
|
|
table.insert(icon_theme_paths, '/usr/share/icons/' .. icon_theme .. '/')
|
|
-- TODO also look in parent icon themes, as in freedesktop.org specification
|
|
end
|
|
table.insert(icon_theme_paths, '/usr/share/icons/hicolor/') -- fallback theme
|
|
|
|
for i, icon_theme_directory in ipairs(icon_theme_paths) do
|
|
for j, size in ipairs(all_icon_sizes) do
|
|
table.insert(icon_path, icon_theme_directory .. size .. '/apps/')
|
|
table.insert(icon_path, icon_theme_directory .. size .. '/actions/')
|
|
table.insert(icon_path, icon_theme_directory .. size .. '/devices/')
|
|
table.insert(icon_path, icon_theme_directory .. size .. '/places/')
|
|
table.insert(icon_path, icon_theme_directory .. size .. '/categories/')
|
|
table.insert(icon_path, icon_theme_directory .. size .. '/status/')
|
|
end
|
|
end
|
|
-- lowest priority fallbacks
|
|
table.insert(icon_path, '/usr/share/pixmaps/')
|
|
table.insert(icon_path, '/usr/share/icons/')
|
|
|
|
for i, directory in ipairs(icon_path) do
|
|
if is_format_supported(icon_file) and awful_util.file_readable(directory .. icon_file) then
|
|
return directory .. icon_file
|
|
else
|
|
-- Icon is probably specified without path and format,
|
|
-- like 'firefox'. Try to add supported extensions to
|
|
-- it and see if such file exists.
|
|
for _, format in ipairs(icon_formats) do
|
|
local possible_file = directory .. icon_file .. "." .. format
|
|
if awful_util.file_readable(possible_file) then
|
|
return possible_file
|
|
end
|
|
end
|
|
end
|
|
end
|
|
return default_icon
|
|
end
|
|
end
|
|
|
|
--- Parse a .desktop file.
|
|
-- @param file The .desktop file.
|
|
-- @return A table with file entries.
|
|
function utils.parse(file)
|
|
local program = { show = true, file = file }
|
|
local desktop_entry = false
|
|
|
|
-- Parse the .desktop file.
|
|
-- We are interested in [Desktop Entry] group only.
|
|
for line in io.lines(file) do
|
|
if not desktop_entry and line == "[Desktop Entry]" then
|
|
desktop_entry = true
|
|
else
|
|
if line:sub(1, 1) == "[" and line:sub(-1) == "]" then
|
|
-- A declaration of new group - stop parsing
|
|
break
|
|
end
|
|
|
|
-- Grab the values
|
|
for key, value in line:gmatch("(%w+)%s*=%s*(.+)") do
|
|
program[key] = value
|
|
end
|
|
end
|
|
end
|
|
|
|
-- In case [Desktop Entry] was not found
|
|
if not desktop_entry then return nil end
|
|
|
|
-- Don't show program if NoDisplay attribute is false
|
|
if program.NoDisplay and string.lower(program.NoDisplay) == "true" then
|
|
program.show = false
|
|
end
|
|
|
|
-- Only show the program if there is no OnlyShowIn attribute
|
|
-- or if it's equal to utils.wm_name
|
|
if program.OnlyShowIn ~= nil and not program.OnlyShowIn:match(utils.wm_name) then
|
|
program.show = false
|
|
end
|
|
|
|
-- Look up for a icon.
|
|
if program.Icon then
|
|
program.icon_path = utils.lookup_icon(program.Icon)
|
|
end
|
|
|
|
-- Split categories into a table. Categories are written in one
|
|
-- line separated by semicolon.
|
|
if program.Categories then
|
|
program.categories = {}
|
|
for category in program.Categories:gmatch('[^;]+') do
|
|
table.insert(program.categories, category)
|
|
end
|
|
end
|
|
|
|
if program.Exec then
|
|
-- Substitute Exec special codes as specified in
|
|
-- http://standards.freedesktop.org/desktop-entry-spec/1.1/ar01s06.html
|
|
local cmdline = program.Exec:gsub('%%c', program.Name)
|
|
cmdline = cmdline:gsub('%%[fuFU]', '')
|
|
cmdline = cmdline:gsub('%%k', program.file)
|
|
if program.icon_path then
|
|
cmdline = cmdline:gsub('%%i', '--icon ' .. program.icon_path)
|
|
else
|
|
cmdline = cmdline:gsub('%%i', '')
|
|
end
|
|
if program.Terminal == "true" then
|
|
cmdline = utils.terminal .. ' -e ' .. cmdline
|
|
end
|
|
program.cmdline = cmdline
|
|
end
|
|
|
|
return program
|
|
end
|
|
|
|
--- Parse a directory with .desktop files
|
|
-- @param dir The directory.
|
|
-- @param icons_size, The icons sizes, optional.
|
|
-- @return A table with all .desktop entries.
|
|
function utils.parse_dir(dir)
|
|
local programs = {}
|
|
local files = io.popen('find '.. dir ..' -maxdepth 1 -name "*.desktop" 2>/dev/null')
|
|
for file in files:lines() do
|
|
local program = utils.parse(file)
|
|
if program then
|
|
table.insert(programs, program)
|
|
end
|
|
end
|
|
return programs
|
|
end
|
|
|
|
return utils
|
|
|
|
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|