broadcast scaling parameters on ar change

src/ext/module/EventBus.ts

@@ -107,10 +107,6 @@ export default class EventBus {
         eventBusCommand.function(commandData, context);
       }
     }
-    if (context.commandId) {
-      const i = this.lastExecutedCommandIndex++ % this.lastExecutedCommandIds.length;
-      this.lastExecutedCommandIds[i] = context.commandId;
-    }
 
     // preventing messages from flowing back to their original senders is
     // CommsServer's job. EventBus does not have enough data for this decision.
@@ -119,6 +115,11 @@ export default class EventBus {
     if (!context.commandId) {
       context.commandId = crypto.randomUUID();
     }
+    if (context.commandId) {
+      const i = this.lastExecutedCommandIndex++ % this.lastExecutedCommandIds.length;
+      this.lastExecutedCommandIds[i] = context.commandId;
+    }
+
     if (
       this.comms
       && context?.origin !== CommsOrigin.Server

src/ext/module/uwui/UI.ts

@@ -19,6 +19,8 @@ import { UwuiWindow } from './UwuiWindow';
 
 import { createApp } from 'vue';
 import SettingsWindowContent from '@components/SettingsWindowContent.vue';
+import { Ar } from '@src/common/interfaces/ArInterface';
+import { Stretch } from '@src/common/interfaces/StretchInterface';
 // import jsonEditorCSS from 'vanilla-jsoneditor/themes/jse-theme-dark.css?inline'
 
 if (process.env.CHANNEL !== 'stable'){
@@ -93,6 +95,12 @@ class UI {
           function: (commandData, context) => {
             this.createSettingsWindow(commandData?.initialState);
           }
+        },
+
+        'broadcast-scaling-params': {
+          function: (commandData: {effectiveZoom: {x: number, y: number}, lastAr: Ar, stretch: Stretch}, context) => {
+            console.warn('got scaling params:', commandData)
+          }
         }
       });
     }

src/ext/module/video-transform/Resizer.ts

@@ -495,8 +495,14 @@ class Resizer {
     try {
       const translate = this.computeOffsets(stretchFactors, options?.ar);
       this.applyCss(stretchFactors, translate);
+
+      this.eventBus.send('broadcast-scaling-params', {
+        effectiveZoom: {x: stretchFactors.xFactor, y: stretchFactors.yFactor},
+        lastAr: this.lastAr,
+        stretch: this.stretcher.stretch
+      });
     } catch (e) {
-      this.logger.warn('setAr', 'error while applying CSS:', e);
+      this.logger.warn('applyScaling', 'error while applying CSS:', e);
       // don't apply CSS if there's an error
     }
   }