37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
 
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//! The terminal file viewer: one OS window per clicked path.
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//!
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//! Every window is a `file-viewer-<n>` label registered in [`registry::ViewerRegistry`];
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//! the commands in `commands/file_viewer_commands.rs` gate on the label and act only on
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//! the caller's own entry, which is why nothing here takes a path from a window.
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pub mod poll;
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pub mod registry;
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pub mod resolve;
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pub mod window;
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pub mod write;
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/// Spec §3: the 21st click is refused with a toast.
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pub const MAX_VIEWER_WINDOWS: usize = 20;
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pub const VIEWER_LABEL_PREFIX: &str = "file-viewer-";
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pub fn is_viewer_label(label: &str) -> bool {
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label
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.strip_prefix(VIEWER_LABEL_PREFIX)
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.is_some_and(|rest| !rest.is_empty() && rest.bytes().all(|b| b.is_ascii_digit()))
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn only_numbered_viewer_labels_pass() {
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assert!(is_viewer_label("file-viewer-1"));
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assert!(is_viewer_label("file-viewer-20"));
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assert!(!is_viewer_label("file-viewer-"));
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assert!(!is_viewer_label("file-viewer-x"));
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assert!(!is_viewer_label("main"));
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assert!(!is_viewer_label("browser-view-abc"));
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}
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}
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