Obsidian Plugin Register Keymap for LeafView

index.ts

export default class mapForNotePlugin extends Plugin {
    //...
    public activeMapForNoteView: MapForNote = null;

    async onload(): Promise<void> {
    //...
        this.registerEventListeners();
    }

    //...

    private popScope = null;
    private registerEventListeners() {
        // eslint-disable-next-line @typescript-eslint/no-this-alias
        const self = this;
        this.app.workspace.onLayoutReady(async () => {
        
        const activeLeafChangeEventHandler = async (leaf: WorkspaceLeaf) => {
            // const previouslyActiveEV = self.activeMapForNoteView;
            const newActiveviewEV: MapForNote = leaf.view instanceof MapForNote ? leaf.view : null;
            self.activeMapForNoteView = newActiveviewEV;

            if (self.popScope) {
              self.popScope();
              self.popScope = null;
            }
            // if (!leaf.view instanceof ExcalidrawView) return;
            if (newActiveviewEV) {
              const scope = this.app.keymap.getRootScope();
              console.log(scope);
              const handler = scope.register(['Mod'], 'Enter', () => {
                console.log('Hi');
                return true;
              });
              scope.keys.unshift(scope.keys.pop()); // Force our handler to the front of the list
              self.popScope = () => scope.unregister(handler);
            } else {
              const scope = new Scope(self.app.scope);
              console.log(scope);
              app.keymap.pushScope(scope);
              app.keymap.popScope(scope);
            }
        };
        self.registerEvent(self.app.workspace.on('active-leaf-change', activeLeafChangeEventHandler));
        });
    }
}