diff options
Diffstat (limited to 'awesome/lib/menubar/icon_theme.lua')
| -rw-r--r-- | awesome/lib/menubar/icon_theme.lua | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/awesome/lib/menubar/icon_theme.lua b/awesome/lib/menubar/icon_theme.lua deleted file mode 100644 index f76252f..0000000 --- a/awesome/lib/menubar/icon_theme.lua +++ /dev/null @@ -1,251 +0,0 @@ ---------------------------------------------------------------------------- ---- Class module for icon lookup for menubar --- --- @author Kazunobu Kuriyama --- @copyright 2015 Kazunobu Kuriyama --- @classmod menubar.icon_theme ---------------------------------------------------------------------------- - --- This implementation is based on the specifications: --- Icon Theme Specification 0.12 --- http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-0.12.html - -local beautiful = require("beautiful") -local awful_util = require("awful.util") -local GLib = require("lgi").GLib -local index_theme = require("menubar.index_theme") - -local ipairs = ipairs -local setmetatable = setmetatable -local string = string -local table = table -local math = math - -local get_pragmatic_base_directories = function() - local dirs = {} - - local dir = GLib.build_filenamev({GLib.get_home_dir(), ".icons"}) - if awful_util.dir_readable(dir) then - table.insert(dirs, dir) - end - - dir = GLib.build_filenamev({GLib.get_user_data_dir(), "icons"}) - if awful_util.dir_readable(dir) then - table.insert(dirs, dir) - end - - for _, v in ipairs(GLib.get_system_data_dirs()) do - dir = GLib.build_filenamev({v, "icons"}) - if awful_util.dir_readable(dir) then - table.insert(dirs, dir) - end - end - - local need_usr_share_pixmaps = true - for _, v in ipairs(GLib.get_system_data_dirs()) do - dir = GLib.build_filenamev({v, "pixmaps"}) - if awful_util.dir_readable(dir) then - table.insert(dirs, dir) - end - if dir == "/usr/share/pixmaps" then - need_usr_share_pixmaps = false - end - end - - dir = "/usr/share/pixmaps" - if need_usr_share_pixmaps and awful_util.dir_readable(dir) then - table.insert(dirs, dir) - end - - return dirs -end - -local get_default_icon_theme_name = function() - local icon_theme_names = { "Adwaita", "gnome", "hicolor" } - for _, dir in ipairs(get_pragmatic_base_directories()) do - for _, icon_theme_name in ipairs(icon_theme_names) do - local filename = string.format("%s/%s/index.theme", dir, icon_theme_name) - if awful_util.file_readable(filename) then - return icon_theme_name - end - end - end - return nil -end - -local icon_theme = { mt = {} } - -local index_theme_cache = {} - ---- Class constructor of `icon_theme` --- @tparam string icon_theme_name Internal name of icon theme --- @tparam table base_directories Paths used for lookup --- @treturn table An instance of the class `icon_theme` -icon_theme.new = function(icon_theme_name, base_directories) - icon_theme_name = icon_theme_name or beautiful.icon_theme or get_default_icon_theme_name() - base_directories = base_directories or get_pragmatic_base_directories() - - local self = {} - self.icon_theme_name = icon_theme_name - self.base_directories = base_directories - self.extensions = { "png", "svg", "xpm" } - - -- Instantiate index_theme (cached). - if not index_theme_cache[self.icon_theme_name] then - index_theme_cache[self.icon_theme_name] = {} - end - local cache_key = table.concat(self.base_directories, ':') - if not index_theme_cache[self.icon_theme_name][cache_key] then - index_theme_cache[self.icon_theme_name][cache_key] = index_theme( - self.icon_theme_name, - self.base_directories) - end - self.index_theme = index_theme_cache[self.icon_theme_name][cache_key] - - return setmetatable(self, { __index = icon_theme }) -end - -local directory_matches_size = function(self, subdirectory, icon_size) - local kind, size, min_size, max_size, threshold = self.index_theme:get_per_directory_keys(subdirectory) - - if kind == "Fixed" then - return icon_size == size - elseif kind == "Scalable" then - return icon_size >= min_size and icon_size <= max_size - elseif kind == "Threshold" then - return icon_size >= size - threshold and icon_size <= size + threshold - end - - return false -end - -local directory_size_distance = function(self, subdirectory, icon_size) - local kind, size, min_size, max_size, threshold = self.index_theme:get_per_directory_keys(subdirectory) - - if kind == "Fixed" then - return math.abs(icon_size - size) - elseif kind == "Scalable" then - if icon_size < min_size then - return min_size - icon_size - elseif icon_size > max_size then - return icon_size - max_size - end - return 0 - elseif kind == "Threshold" then - if icon_size < size - threshold then - return min_size - icon_size - elseif icon_size > size + threshold then - return icon_size - max_size - end - return 0 - end - - return 0xffffffff -- Any large number will do. -end - -local lookup_icon = function(self, icon_name, icon_size) - local checked_already = {} - for _, subdir in ipairs(self.index_theme:get_subdirectories()) do - for _, basedir in ipairs(self.base_directories) do - for _, ext in ipairs(self.extensions) do - if directory_matches_size(self, subdir, icon_size) then - local filename = string.format("%s/%s/%s/%s.%s", - basedir, self.icon_theme_name, subdir, - icon_name, ext) - if awful_util.file_readable(filename) then - return filename - else - checked_already[filename] = true - end - end - end - end - end - - local minimal_size = 0xffffffff -- Any large number will do. - local closest_filename = nil - for _, subdir in ipairs(self.index_theme:get_subdirectories()) do - local dist = directory_size_distance(self, subdir, icon_size) - if dist < minimal_size then - for _, basedir in ipairs(self.base_directories) do - for _, ext in ipairs(self.extensions) do - local filename = string.format("%s/%s/%s/%s.%s", - basedir, self.icon_theme_name, subdir, - icon_name, ext) - if not checked_already[filename] then - if awful_util.file_readable(filename) then - closest_filename = filename - minimal_size = dist - end - end - end - end - end - end - return closest_filename -end - -local find_icon_path_helper -- Gets called recursively. -find_icon_path_helper = function(self, icon_name, icon_size) - local filename = lookup_icon(self, icon_name, icon_size) - if filename then - return filename - end - - for _, parent in ipairs(self.index_theme:get_inherits()) do - local parent_icon_theme = icon_theme(parent, self.base_directories) - filename = find_icon_path_helper(parent_icon_theme, icon_name, icon_size) - if filename then - return filename - end - end - - return nil -end - -local lookup_fallback_icon = function(self, icon_name) - for _, dir in ipairs(self.base_directories) do - for _, ext in ipairs(self.extensions) do - local filename = string.format("%s/%s.%s", - dir, - icon_name, ext) - if awful_util.file_readable(filename) then - return filename - end - end - end - return nil -end - ---- Look up an image file based on a given icon name and/or a preferable size. --- @tparam string icon_name Icon name to be looked up --- @tparam number icon_size Prefereable icon size --- @treturn string Absolute path to the icon file, or nil if not found -function icon_theme:find_icon_path(icon_name, icon_size) - icon_size = icon_size or 16 - if not icon_name or icon_name == "" then - return nil - end - - local filename = find_icon_path_helper(self, icon_name, icon_size) - if filename then - return filename - end - - if self.icon_theme_name ~= "hicolor" then - filename = find_icon_path_helper(icon_theme("hicolor", self.base_directories), icon_name, icon_size) - if filename then - return filename - end - end - - return lookup_fallback_icon(self, icon_name) -end - -icon_theme.mt.__call = function(_, ...) - return icon_theme.new(...) -end - -return setmetatable(icon_theme, icon_theme.mt) - --- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80 |