diff options
Diffstat (limited to 'src/lib.rs')
-rw-r--r-- | src/lib.rs | 24 |
1 files changed, 21 insertions, 3 deletions
@@ -15,6 +15,8 @@ //! These dialog boxes can be displayed using various backends: //! - [`Dialog`][]: uses `dialog` to display ncurses-based dialog boxes (requires the external //! `dialog` tool) +//! - [`KDialog`][]: uses `kdialog` to display Qt-based dialog boxes (requires the external +//! `kdialog` tool) //! - [`Stdio`][]: prints messages to the standard output and reads user input form standard input //! (intended as a fallback backend) //! - [`Zenity`][]: uses `zenity` to display GTK-based dialog boxes (requires the external `zenity` @@ -72,6 +74,7 @@ //! [`Message`]: struct.Message.html //! [`Password`]: struct.Password.html //! [`Question`]: struct.Question.html +//! [`KDialog`]: backends/struct.KDialog.html //! [`Stdio`]: backends/struct.Stdio.html //! [`Zenity`]: backends/struct.Zenity.html //! [`default_backend`]: fn.default_backend.html @@ -345,13 +348,16 @@ impl DialogBox for Question { /// - If the `DIALOG` environment variable is set to a valid backend name, this backend is used. /// A valid backend name is the name of a struct in the `backends` module implementing the /// `Backend` trait in any case. -/// - If the `DISPLAY` environment variable is set, the first available backend from this list is -/// used: -/// - [`Zenity`][] +/// - If the `DISPLAY` environment variable is set, the following resolution algorithm is used: +/// - If the `XDG_CURRENT_DESKTOP` environment variable is set to `KDE`, [`KDialog`][] is used. +/// - Otherwise, the first available backend from this list is used: +/// - [`Zenity`][] +/// - [`KDialog`][] /// - If the [`Dialog`][] backend is available, it is used. /// - Otherwise, a [`Stdio`][] instance is returned. /// /// [`Dialog`]: backends/struct.Dialog.html +/// [`KDialog`]: backends/struct.KDialog.html /// [`Stdio`]: backends/struct.Stdio.html /// [`Zenity`]: backends/struct.Zenity.html pub fn default_backend() -> Box<dyn backends::Backend> { @@ -363,9 +369,21 @@ pub fn default_backend() -> Box<dyn backends::Backend> { if let Ok(display) = env::var("DISPLAY") { if !display.is_empty() { + // Prefer KDialog if the user is logged into a KDE session + let kdialog_available = backends::KDialog::is_available(); + if let Ok(desktop) = env::var("XDG_CURRENT_DESKTOP") { + if kdialog_available && desktop == "KDE" { + return Box::new(backends::KDialog::new()); + } + } + if backends::Zenity::is_available() { return Box::new(backends::Zenity::new()); } + + if kdialog_available { + return Box::new(backends::KDialog::new()); + } } } |