fix isEditable

packages/core/src/Editor.ts

@@ -49,6 +49,7 @@ export class Editor extends EventEmitter {
   public schema!: Schema
   public view!: EditorView
   public selection = { from: 0, to: 0 }
+  public isFocused = false
   public options: EditorOptions = {
     element: document.createElement('div'),
     content: '',
@@ -57,8 +58,6 @@ export class Editor extends EventEmitter {
     autoFocus: false,
     editable: true,
   }
-  public isFocused = false
-  public isEditable = true
 
   constructor(options: Partial<EditorOptions> = {}) {
     super()
@@ -98,6 +97,10 @@ export class Editor extends EventEmitter {
     }
   }
 
+  public get isEditable() {
+    return this.view && this.view.editable
+  }
+
   public get state() {
     return this.view.state
   }