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@ -17,8 +17,9 @@ |
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use crate::con::DisplayFormat; |
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use crate::config as cfg; |
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use lazy_static::lazy_static; |
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use std::collections::HashMap; |
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use std::io::Write; |
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use std::io::{BufRead, Write}; |
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use std::process as proc; |
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pub fn get_swayr_socket_path() -> String { |
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@ -43,6 +44,137 @@ pub fn get_swayr_socket_path() -> String { |
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) |
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} |
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fn desktop_entries() -> Vec<String> { |
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let mut dirs = vec![]; |
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if let Some(dd) = directories::BaseDirs::new() |
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.map(|b| b.data_local_dir().to_string_lossy().to_string()) |
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{ |
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dirs.push(dd); |
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} |
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dirs.push(String::from("/usr/share/applications/")); |
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let mut entries = vec![]; |
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for dir in dirs { |
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if let Ok(readdir) = std::fs::read_dir(dir) { |
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for entry in readdir.flatten() { |
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let path = entry.path(); |
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if path.is_file() |
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&& path.extension().map(|ext| ext == "desktop") |
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== Some(true) |
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{ |
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entries.push(path.as_path().to_string_lossy().to_string()); |
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} |
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} |
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} |
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} |
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entries |
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} |
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fn find_icon(icon_name: &str, icon_dirs: &[String]) -> Option<String> { |
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if std::path::Path::new(icon_name).is_file() { |
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return Some(String::from(icon_name)); |
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} |
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for dir in icon_dirs { |
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for ext in &["png", "svg"] { |
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let mut pb = std::path::PathBuf::from(dir); |
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pb.push(icon_name); |
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pb.set_extension(ext); |
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let icon_file = pb.as_path(); |
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if icon_file.is_file() { |
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return Some(String::from(icon_file.to_str().unwrap())); |
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} |
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} |
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} |
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None |
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} |
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lazy_static! { |
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static ref WM_CLASS_OR_ICON_RX: regex::Regex = |
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regex::Regex::new("(StartupWMClass|Icon)=(.+)").unwrap(); |
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} |
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fn get_app_id_to_icon_map(icon_dirs: &[String]) -> HashMap<String, String> { |
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let mut map = HashMap::new(); |
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for e in desktop_entries() { |
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if let Ok(f) = std::fs::File::open(&e) { |
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let buf = std::io::BufReader::new(f); |
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let mut wm_class: Option<String> = None; |
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let mut icon: Option<String> = None; |
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// Get App-Id and Icon from desktop file.
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for line in buf.lines() { |
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if wm_class.is_some() && icon.is_some() { |
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break; |
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} |
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if let Ok(line) = line { |
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if let Some(cap) = WM_CLASS_OR_ICON_RX.captures(&line) { |
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if "StartupWMClass" == cap.get(1).unwrap().as_str() { |
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wm_class.replace( |
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cap.get(2).unwrap().as_str().to_string(), |
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); |
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} else if let Some(icon_file) = |
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find_icon(cap.get(2).unwrap().as_str(), icon_dirs) |
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{ |
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icon.replace(icon_file); |
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} |
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} |
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} |
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} |
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if let Some(icon) = icon { |
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if let Some(wm_class) = wm_class { |
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map.insert(wm_class, icon.clone()); |
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} |
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map.insert( |
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String::from( |
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std::path::Path::new(&e) |
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.with_extension("") |
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.file_name() |
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.unwrap() |
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.to_string_lossy(), |
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), |
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icon, |
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); |
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} |
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} |
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} |
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map |
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} |
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lazy_static! { |
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static ref APP_ID_TO_ICON_MAP: std::sync::Mutex<Option<HashMap<String, String>>> = |
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std::sync::Mutex::new(None); |
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} |
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pub fn get_icon(app_id: &str, icon_dirs: &[String]) -> Option<String> { |
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let mut opt = APP_ID_TO_ICON_MAP.lock().unwrap(); |
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if opt.is_none() { |
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opt.replace(get_app_id_to_icon_map(icon_dirs)); |
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} |
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opt.as_ref().unwrap().get(app_id).map(String::from) |
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} |
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#[test] |
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fn test_desktop_entries() { |
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let icon_dirs = vec![ |
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String::from("/usr/share/icons/hicolor/48x48/apps"), |
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String::from("/usr/share/pixmaps"), |
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]; |
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let m = get_app_id_to_icon_map(&icon_dirs); |
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println!("Found {} icon entries:\n{:#?}", m.len(), m); |
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let apps = vec!["Emacs", "Alacritty", "firefoxdeveloperedition", "gimp"]; |
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for app in apps { |
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println!("Icon for {}: {:?}", app, get_icon(app, &icon_dirs)) |
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} |
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} |
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pub fn select_from_menu<'a, 'b, TS>( |
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prompt: &'a str, |
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choices: &'b [TS], |
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Tassilo Horn
3 years ago