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fix(overlay): parse HANDY_NO_GTK_LAYER_SHELL as boolean (#1269)

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The previous check used `env::var(...).is_ok()`, which only tested for
the variable's presence and ignored its value. Setting the variable to
`0` or `false` counter-intuitively still disabled gtk-layer-shell.

Introduce `env_flag_enabled` helper that treats `0`, `false`, `no`,
`off`, and the empty string as falsy (case-insensitive).
This commit is contained in:
Evgeny Khudoba 2026-04-11 14:22:12 +07:00 committed by GitHub
parent 966ff99756
commit 11311bee0e
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1 changed files with 17 additions and 3 deletions
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20
src-tauri/src/overlay.rs
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@ -66,13 +66,27 @@ fn update_gtk_layer_shell_anchors(overlay_window: &tauri::webview::WebviewWindow
});
}
/// Returns true when the environment variable is set to a truthy value
/// (e.g. "1", "true", "yes", "on").
/// "0", "false", "no", "off" and empty string are treated as falsy (case-insensitive).
/// Returns false when the variable is not set.
#[cfg(target_os = "linux")]
fn env_flag_enabled(name: &str) -> bool {
match env::var(name) {
Ok(v) => !matches!(
v.trim().to_ascii_lowercase().as_str(),
"" | "0" | "false" | "no" | "off"
),
Err(_) => false,
}
}
/// Initializes GTK layer shell for Linux overlay window
/// Returns true if layer shell was successfully initialized, false otherwise
#[cfg(target_os = "linux")]
fn init_gtk_layer_shell(overlay_window: &tauri::webview::WebviewWindow) -> bool {
if env::var("HANDY_NO_GTK_LAYER_SHELL").is_ok() {
debug!("Skipping GTK layer shell init (HANDY_NO_GTK_LAYER_SHELL is set)");
if env_flag_enabled("HANDY_NO_GTK_LAYER_SHELL") {
debug!("Skipping GTK layer shell init (HANDY_NO_GTK_LAYER_SHELL is enabled)");
return false;
}