system: fix directory monitor

Keep ref to monitor so it doesn't get garbage collected

2 files changed, 6 insertions, 2 deletions

diff --git a/src/services/schemes.ts b/src/services/schemes.ts
index 548975c..2808b55 100644
--- a/src/services/schemes.ts
+++ b/src/services/schemes.ts
@@ -32,7 +32,6 @@ export default class Schemes extends GObject.Object {
     }
 
     readonly #schemeDir: string = `${DATA}/scripts/data/schemes`;
-    readonly #monitor;
 
     #map: { [k: string]: Scheme } = {};
 
@@ -106,7 +105,7 @@ export default class Schemes extends GObject.Object {
         super();
 
         this.update().catch(console.error);
-        this.#monitor = monitorDirectory(this.#schemeDir, (_m, file, _f, type) => {
+        monitorDirectory(this.#schemeDir, (_m, file, _f, type) => {
             if (type !== Gio.FileMonitorEvent.DELETED) this.updateFile(file).catch(console.error);
         });
     }
diff --git a/src/utils/system.ts b/src/utils/system.ts
index 2e9fa4a..8ccb5d1 100644
--- a/src/utils/system.ts
+++ b/src/utils/system.ts
@@ -76,6 +76,7 @@ export const bindCurrentTime = (
     return bind(time);
 };
 
+const monitors = new Set();
 export const monitorDirectory = (
     path: string,
     callback: (
@@ -102,5 +103,9 @@ export const monitorDirectory = (
             }
     }
 
+    // Keep ref to monitor so it doesn't get GCed
+    monitors.add(monitor);
+    monitor.connect("notify::cancelled", () => monitor.cancelled && monitors.delete(monitor));
+
     return monitor;
 };