Method insertBefore

packages/muya/src/block/base/parent.ts:187–207

(
        newNode: Parent,
        refNode: Nullable<Parent> = null,
        source = 'user',
    )

    }

    insertBefore(
        newNode: Parent,
        refNode: Nullable<Parent> = null,
        source = 'user',
    ) {
        newNode.parent = this;
        this.children.insertBefore(newNode, refNode);
        this.domNode!.insertBefore(
            newNode.domNode!,
            refNode ? refNode.domNode! : null,
        );

        if (source === 'user') {
            // dispatch json1 operation
            const path = newNode.getJsonPath();
            const state = newNode.getState();
            this.jsonState.insertOperation(path, state);
        }

        return newNode;
    }

    insertAfter(newNode: Parent, refNode: Nullable<Parent> = null, source = 'user') {
        this.insertBefore(newNode, refNode ? refNode.next : null, source);