Add Tweening to zoom, fix saving canvas.

shared/general.utils.ts

@@ -1,5 +1,5 @@
 import type { CanvasContent } from '~/types/canvas';
-import type { FileType } from '~/types/content';
+import type { ContentMap, FileType } from '~/types/content';
 
 export function unifySlug(slug: string | string[]): string
 {
@@ -47,7 +47,10 @@ export function clamp(x: number, min: number, max: number): number {
         return min;
     return x;
 }
-export function convertContent(type: FileType, content: string): CanvasContent | string {
+export function lerp(a: number, b: number, t: number) {
+    return a + t * (b - a);
+}
+export function convertContentFromText(type: FileType, content: string): CanvasContent | string {
     switch(type)
     {
         case 'canvas':
@@ -61,6 +64,20 @@ export function convertContent(type: FileType, content: string): CanvasContent |
             return content;
     }
 }
+export function convertContentToText(type: FileType, content: any): string {
+    switch(type)
+    {
+        case 'canvas':
+            return JSON.stringify(content);
+        case 'map':
+        case 'file':
+        case 'folder':
+        case 'markdown':
+            return content;
+        default:
+            return content;
+    }
+}
 
 export const iconByType: Record<FileType, string> = {
     'folder': 'lucide:folder',