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feat(io): FILEASSOC command to toggle file association on/off (#205)

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`FILEASSOC 1` (re)registers the app as a .dwg/.dxf/.bak handler; `FILEASSOC 0`
unregisters it (removes the .desktop + CAD mime package on Linux, the per-user
registry keys on Windows); bare `FILEASSOC` reports the current state. The
choice persists (file_assoc_enabled) and gates the every-launch
re-registration, so turning it off stays off across restarts.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-06-29 12:58:23 +03:00
commit 9ea800f049
5 changed files with 113 additions and 4 deletions
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15
src/app/mod.rs
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@ -250,6 +250,9 @@ pub(super) struct OpenCADStudio {
/// When true (default), saving over an existing file first writes a `.bak`
/// copy of it for recovery (#205). Toggle with the ISAVEBAK command.
pub backup_on_save: bool,
/// When true (default), the app registers itself as a .dwg/.dxf/.bak file
/// handler on each launch. Toggle with the FILEASSOC command.
pub file_assoc_enabled: bool,
/// Persisted default viewport background, restored from settings and applied
/// to every drawing tab (new and opened) so a chosen background survives
/// restarts (#188). `None` = the built-in dark-grey / off-white defaults.
@ -1866,6 +1869,7 @@ impl OpenCADStudio {
dyn_input: true,
texteditmode: false,
backup_on_save: true,
file_assoc_enabled: true,
default_bg_color: None,
default_paper_bg_color: None,
awaiting_vports: false,
@ -2151,8 +2155,15 @@ impl OpenCADStudio {
// portable .exe / AppImage that no installer has registered. Detached so
// it never delays startup.
std::thread::spawn(|| {
if let Err(e) = crate::io::file_association::register_as_handler() {
eprintln!("file association: handler registration failed: {e}");
// Honour the FILEASSOC toggle: skip (re)registration when the user
// has turned file association off.
let enabled = settings::UserSettings::load()
.map(|s| s.file_assoc_enabled)
.unwrap_or(true);
if enabled {
if let Err(e) = crate::io::file_association::register_as_handler() {
eprintln!("file association: handler registration failed: {e}");
}
}
});
let state = Self::new();