Merge branch 'map-scaling-incorrectly-des-692'

2 files changed, 5 insertions, 2 deletions

diff --git a/gui/src/shared/ipc-helpers.ts b/gui/src/shared/ipc-helpers.ts
index 27ad17e22a..0ff3ca2064 100644
--- a/gui/src/shared/ipc-helpers.ts
+++ b/gui/src/shared/ipc-helpers.ts
@@ -6,7 +6,7 @@ import { capitalize } from './string-helpers';
 type Handler<T, R> = (callback: (arg: T) => R) => void;
 type Sender<T, R> = (arg: T) => R;
 type Notifier<T> = ((arg: T) => void) | undefined;
-type Listener<T> = (callback: (arg: T) => void) => void;
+type Listener<T> = (callback: (arg: T) => void) => () => void;
 
 interface MainToRenderer<T> {
   direction: 'main-to-renderer';
@@ -154,7 +154,9 @@ export function notifyRenderer<T>(): MainToRenderer<T> {
     direction: 'main-to-renderer',
     send: notifyRendererImpl,
     receive: (event, ipcRenderer) => (fn: (value: T) => void) => {
-      ipcRenderer.on(event, (_event, newState: T) => fn(newState));
+      const listener = (_event: unknown, newState: T) => fn(newState);
+      ipcRenderer.on(event, listener);
+      return () => ipcRenderer.off(event, listener);
     },
   };
 }
diff --git a/gui/src/shared/ipc-schema.ts b/gui/src/shared/ipc-schema.ts
index b94fe0a701..d90957764e 100644
--- a/gui/src/shared/ipc-schema.ts
+++ b/gui/src/shared/ipc-schema.ts
@@ -128,6 +128,7 @@ export const ipcSchema = {
     shape: notifyRenderer<IWindowShapeParameters>(),
     focus: notifyRenderer<boolean>(),
     macOsScrollbarVisibility: notifyRenderer<MacOsScrollbarVisibility>(),
+    scaleFactorChange: notifyRenderer<void>(),
   },
   navigation: {
     reset: notifyRenderer<void>(),