260 lines
7.8 KiB
Lua
260 lines
7.8 KiB
Lua
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--[[
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Awesome-Freedesktop
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Freedesktop.org compliant desktop entries and menu
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Desktop section
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Licensed under GNU General Public License v2
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* (c) 2016, Luke Bonham
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* (c) 2009-2015, Antonio Terceiro
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--]]
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local awful = require("awful")
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local theme = require("beautiful")
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local utils = require("menubar.utils")
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local wibox = require("wibox")
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local io = io
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local ipairs = ipairs
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local mouse = mouse
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local os = os
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local string = string
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local screen = screen
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local table = table
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-- Desktop icons
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-- freedesktop.desktop
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local desktop = {
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-- Default desktop basic icons
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baseicons = {
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[1] = {
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label = "This PC",
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icon = "computer",
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onclick = "computer://"
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},
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[2] = {
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label = "Home",
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icon = "user-home",
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onclick = os.getenv("HOME")
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},
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[3] = {
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label = "Trash",
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icon = "user-trash",
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onclick = "trash://"
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}
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},
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-- Default parameters
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iconsize = { width = 48, height = 48 },
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labelsize = { width = 140, height = 20 },
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margin = { x = 20, y = 20 },
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}
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-- MIME types list
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local mime_types = {}
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-- Icons positioning
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desktop.current_pos = {}
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-- @return iterator on input pipe
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local function pipelines(...)
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local f = assert(io.popen(...))
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return function ()
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local data = f:read()
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if data == nil then f:close() end
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return data
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end
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end
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-- Adds an icon to desktop
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-- @param args settings from desktop.add_icons
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-- @param label icon string label
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-- @param icon icon string file path
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-- @param onclick function to execute on click
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function desktop.add_single_icon(args, label, icon, onclick)
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local s = args.screen
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local dcp = desktop.current_pos
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-- define icon dimensions and position
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if not dcp[s] then
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dcp[s] = { x = (screen[s].geometry.x + args.iconsize.width + args.margin.x), y = screen[s].geometry.y + 20 + args.margin.y }
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end
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local tot_height = (icon and args.iconsize.height or 0) + (label and args.labelsize.height or 0)
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if tot_height == 0 then return end
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if dcp[s].y + tot_height > screen[s].geometry.y + screen[s].geometry.height - 20 - args.margin.y then
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dcp[s].x = dcp[s].x + args.labelsize.width + args.iconsize.width + args.margin.x
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dcp[s].y = 20 + args.margin.y
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end
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local common = { screen = s, bg = "#00000000", visible = true, type = "desktop" }
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-- create icon container
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if icon then
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common.width = args.iconsize.width
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common.height = args.iconsize.height
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common.x = dcp[s].x
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common.y = dcp[s].y
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icon = wibox.widget {
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image = icon,
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resize = false,
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widget = wibox.widget.imagebox
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}
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icon:buttons(awful.button({ }, 1, nil, onclick))
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icon_container = wibox(common)
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icon_container:set_widget(icon)
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dcp[s].y = dcp[s].y + args.iconsize.height + 5
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end
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-- create label container
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if label then
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common.width = args.labelsize.width
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common.height = args.labelsize.height
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common.x = dcp[s].x - (args.labelsize.width/2) + args.iconsize.width/2
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common.y = dcp[s].y
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caption = wibox.widget {
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text = label,
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align = "center",
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forced_width = common.width,
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forced_height = common.height,
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ellipsize = "middle",
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widget = wibox.widget.textbox
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}
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caption:buttons(awful.button({ }, 1, onclick))
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caption_container = wibox(common)
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caption_container:set_widget(caption)
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end
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dcp[s].y = dcp[s].y + args.labelsize.height + args.margin.y
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desktop.current_pos = dcp
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return dcp
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end
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-- Adds base icons (This PC, Trash, etc) to desktop
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-- @param args settings from desktop.add_icons
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function desktop.add_base_icons(args)
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for _,base in ipairs(args.baseicons) do
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desktop.add_single_icon(args, base.label, utils.lookup_icon(base.icon), function()
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awful.spawn(string.format("%s '%s'", args.open_with, base.onclick))
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end)
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end
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end
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-- Looks up a suitable icon for filename
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-- @param filename string file name
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-- @return icon file path (string)
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function desktop.lookup_file_icon(filename)
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-- load system MIME types
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if #mime_types == 0 then
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for line in io.lines("/etc/mime.types") do
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if not line:find("^#") then
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local parsed = {}
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for w in line:gmatch("[^%s]+") do
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table.insert(parsed, w)
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end
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if #parsed > 1 then
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for i = 2, #parsed do
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mime_types[parsed[i]] = parsed[1]:gsub("/", "-")
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end
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end
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end
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end
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end
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-- try to search a possible icon among standards
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local extension = filename:match("%a+$")
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local mime = mime_types[extension] or ""
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local mime_family = mime:match("^%a+") or ""
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local possible_filenames = {
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mime, "gnome-mime-" .. mime,
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mime_family, "gnome-mime-" .. mime_family,
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extension
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}
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for i, filename in ipairs(possible_filenames) do
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local icon = utils.lookup_icon(filename)
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if icon then return icon end
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end
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-- if we don"t find ad icon, then pretend is a plain text file
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return utils.lookup_icon("text-x-generic")
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end
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-- Parse subdirectories and files list from input directory
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-- @input dir directory to parse (string)
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-- @return files table with found entries
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function desktop.parse_dirs_and_files(dir)
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local files = {}
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local paths = pipelines('find '..dir..' -maxdepth 1 -type d |sort|tail -n +1')
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for path in paths do
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if path:match("[^/]+$") then
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local file = {}
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file.filename = path:match("[^/]+$")
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file.path = path
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file.show = true
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file.icon = utils.lookup_icon("folder")
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table.insert(files, file)
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end
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end
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local paths = pipelines('find '..dir..' -maxdepth 1 -type f')
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for path in paths do
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if not path:find("%.desktop$") then
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local file = {}
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file.filename = path:match("[^/]+$")
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file.path = path
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file.show = true
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file.icon = desktop.lookup_file_icon(file.filename)
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table.insert(files, file)
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end
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end
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return files
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end
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-- Adds subdirectories and files icons from args.dir
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-- @param args settings from desktop.add_icons
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function desktop.add_dirs_and_files_icons(args)
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for _, file in ipairs(desktop.parse_dirs_and_files(args.dir)) do
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if file.show then
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local label = args.showlabels and file.filename or nil
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local onclick = function () awful.spawn(string.format("%s '%s'", args.open_with, file.path)) end
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desktop.add_single_icon(args, label, file.icon, onclick)
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end
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end
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end
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-- Main function, adds base, directory and files icons
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-- @param args user defined settings, with fallback on defaults
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function desktop.add_icons(args)
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args = args or {}
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args.screen = args.screen or mouse.screen
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args.dir = args.dir or os.getenv("HOME") .. "/Desktop"
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args.showlabels = args.showlabel or true
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args.open_with = args.open_with or "xdg_open"
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args.baseicons = args.baseicons or desktop.baseicons
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args.iconsize = args.iconsize or desktop.iconsize
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args.labelsize = args.labelsize or desktop.labelsize
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args.margin = args.margin or desktop.margin
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-- trying to fallback on Adwaita if theme.icon_theme is not defined
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-- if Adwaita is missing too, no icons will be shown
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if not theme.icon_theme then
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theme.icon_theme = args.icon_theme or "Adwaita"
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end
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desktop.add_base_icons(args)
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desktop.add_dirs_and_files_icons(args)
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end
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return desktop
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