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use std::env;
use std::fs;
use std::process::Command;
static SELECTION_TEMPORARY_FILE: &str = "/tmp/selection-tmp.png";
pub enum ScreenshotKind {
Area,
Window,
Full,
}
enum SessionKind {
Wayland,
X11,
}
enum DesktopKind {
GNOME,
KDE,
X11,
}
fn session_type() -> SessionKind {
return match env::var("XDG_SESSION_TYPE") {
Ok(ok) => match ok.to_lowercase().as_ref() {
"wayland" => SessionKind::Wayland,
_ => SessionKind::X11,
},
Err(_) => SessionKind::X11,
};
}
fn screenshot_tool_selection(session: SessionKind) -> DesktopKind {
return match session {
SessionKind::Wayland => match Command::new("gnome-screenshot").arg("--version").spawn() {
Ok(_) => DesktopKind::GNOME,
Err(_) => match Command::new("spectacle").arg("--version").spawn() {
Ok(_) => DesktopKind::KDE,
Err(_) => panic!("Uncompatible Wayland desktop"),
},
},
SessionKind::X11 => match Command::new("gnome-screenshot").arg("--version").spawn() {
Ok(_) => DesktopKind::GNOME,
Err(_) => match Command::new("spectacle").arg("--version").spawn() {
Ok(_) => DesktopKind::KDE,
Err(_) => match Command::new("scrot").arg("--version").spawn() {
Ok(_) => DesktopKind::X11,
Err(_) => panic!("Uncompatible X11 desktop (install scrot)"),
},
},
},
};
}
pub fn screenshot_area(file: String, freeze: bool) {
match screenshot_tool_selection(session_type()) {
DesktopKind::GNOME => gnome(ScreenshotKind::Area, file, freeze),
DesktopKind::KDE => kde(ScreenshotKind::Area, file),
DesktopKind::X11 => scrot(ScreenshotKind::Area, file, freeze),
}
}
pub fn screenshot_window(file: String) {
match screenshot_tool_selection(session_type()) {
DesktopKind::GNOME => gnome(ScreenshotKind::Window, file, false),
DesktopKind::KDE => kde(ScreenshotKind::Window, file),
DesktopKind::X11 => scrot(ScreenshotKind::Window, file, false),
}
}
pub fn screenshot_full(file: String) {
match screenshot_tool_selection(session_type()) {
DesktopKind::GNOME => gnome(ScreenshotKind::Full, file, false),
DesktopKind::KDE => kde(ScreenshotKind::Full, file),
DesktopKind::X11 => scrot(ScreenshotKind::Full, file, false),
}
}
fn gnome(option: ScreenshotKind, file: String, freeze: bool) {
match option {
ScreenshotKind::Area => {
let mut feh = match Command::new("feh").arg("--version").spawn() {
Ok(_) => {
Command::new("gnome-screenshot")
.args(&["-f", SELECTION_TEMPORARY_FILE])
.output()
.expect("gnome-screenshot did not launch");
Command::new("feh")
.args(&[SELECTION_TEMPORARY_FILE, "-F"])
.spawn()
.expect("'feh' did not launch to pause screen for selection")
}
Err(_) => Command::new("sh")
.arg("-c")
.arg("echo Feh does not exist")
.spawn()
.unwrap(),
};
Command::new("gnome-screenshot")
.args(&["-a", "-f", &file])
.output()
.expect("gnome-screenshot did not launch");
if freeze {
match fs::remove_file(SELECTION_TEMPORARY_FILE) {
Ok(ok) => ok,
Err(_) => eprintln!("Unable to remove temporary selection file"),
};
match feh.kill() {
Ok(ok) => ok,
Err(_) => eprintln!("Unable to kill feh, must have already been closed"),
};
}
}
ScreenshotKind::Window => {
Command::new("gnome-screenshot")
.args(&["-w", "-e", "shadow", "-f", &file])
.output()
.expect("gnome-screenshot did not launch");
}
ScreenshotKind::Full => {
Command::new("gnome-screenshot")
.args(&["-f", &file])
.output()
.expect("gnome-screenshot did not launch");
}
};
}
fn kde(option: ScreenshotKind, file: String) {
match option {
ScreenshotKind::Area => {
Command::new("spectacle")
.args(&["-rbno,", &file])
.output()
.expect("spectacle did not launch");
}
ScreenshotKind::Window => {
Command::new("spectacle")
.args(&["-abno", &file])
.output()
.expect("spectacle did not launch");
}
ScreenshotKind::Full => {
Command::new("spectacle")
.args(&["-fbno", &file])
.output()
.expect("spectacle did not launch");
}
};
}
fn scrot(option: ScreenshotKind, file: String, freeze: bool) {
match option {
ScreenshotKind::Area => {
let mut feh = match Command::new("feh").arg("--version").spawn() {
Ok(_) => {
Command::new("scrot")
.arg(SELECTION_TEMPORARY_FILE)
.output()
.expect("scrot did not launch");
Command::new("feh")
.args(&[SELECTION_TEMPORARY_FILE, "-F"])
.spawn()
.expect("'feh' did not launch to pause screen for selection")
}
Err(_) => Command::new("sh")
.arg("-c")
.arg("echo Feh does not exist")
.spawn()
.unwrap(),
};
Command::new("scrot")
.args(&["--select", &file])
.output()
.expect("scrot did not launch");
if freeze {
match fs::remove_file(SELECTION_TEMPORARY_FILE) {
Ok(ok) => ok,
Err(_) => eprintln!("Unable to remove temporary selection file"),
};
match feh.kill() {
Ok(ok) => ok,
Err(_) => eprintln!("Unable to kill feh, must have already been closed"),
};
}
}
ScreenshotKind::Window => {
Command::new("scrot")
.args(&["--border", "--focused", &file])
.output()
.expect("gnome-screenshot did not launch");
}
ScreenshotKind::Full => {
Command::new("scrot")
.args(&[&file])
.output()
.expect("gnome-screenshot did not launch");
}
};
}