Repository: pixijs/pixijs
File: src/dom/DOMPipe.ts (TypeScript)

Code before:
    }

    /**
     * Validates a renderable DOM container.
     * @param _domContainer - The DOM container to be validated (unused).
     * @returns Always returns true as validation is not required.
     */
    public validateRenderable(_domContainer: DOMContainer): boolean
    {
        return true;
    }

    /** Handles the post-rendering process, ensuring DOM elements are correctly positioned and visible. */
    public postrender(): void
    {
        const attachedDomElements = this._attachedDomElements;

        if (attachedDomElements.length === 0)
        {
            this._domElement.remove();

            return;
        }

        // Ensure the canvas is set
        this._canvasTransformSync.canvas = this._renderer.view.canvas as HTMLCanvasElement;

        for (let i = 0; i < attachedDomElements.length; i++)
        {
            const domContainer = attachedDomElements[i];
            const element = domContainer.element;

            if (!domContainer.parent || domContainer.globalDisplayStatus < 0b111)
            {
                element?.remove();
                attachedDomElements.splice(i, 1);
                i--;
            }
            else
            {
                if (!this._domElement.contains(element))
                {
                    element.style.position = 'absolute';
                    element.style.pointerEvents = 'auto';
                    this._domElement.appendChild(element);
                }

                const wt = domContainer.worldTransform;
                const anchor = domContainer._anchor;
                const ax = domContainer.width * anchor.x;
                const ay = domContainer.height * anchor.y;

Review comment (refactor):
I think we can simplify this to leveraging `init` hook in the systems 

 we can create `CanvasTransformSync`

```
  this._canvasTransformSync = new CanvasTransformSync({
            domElement: this._domElement,
            renderer: this._renderer, // canvas / view will be ready
  });
```

that way `CanvasTransformSync` does not need an init function and can be set up in the constructor simplifying the code flow.

Code after:
    /**
     * Updates a renderable DOM container.
     * @param _domContainer - The DOM container to be updated (unused).
     */
    public updateRenderable(_domContainer: DOMContainer): void
    {
        // Updates happen in postrender
    }

    /**
     * Validates a renderable DOM container.
     * @param _domContainer - The DOM container to be validated (unused).
     * @returns Always returns true as validation is not required.
     */
    public validateRenderable(_domContainer: DOMContainer): boolean
    {
        return true;
    }

    /** Handles the post-rendering process, ensuring DOM elements are correctly positioned and visible. */
    public postrender(): void
    {
        const attachedDomElements = this._attachedDomElements;

        if (attachedDomElements.length === 0)
        {
            this._domElement.remove();

            return;
        }

        // Ensure the main DOM element is attached to the same parent as the canvas
        this._canvasObserver.ensureAttached();

        for (let i = 0; i < attachedDomElements.length; i++)
        {
            const domContainer = attachedDomElements[i];
            const element = domContainer.element;

            if (!domContainer.parent || domContainer.globalDisplayStatus < 0b111)
            {
                element?.remove();
                attachedDomElements.splice(i, 1);
                i--;
            }
            else
            {
                if (!this._domElement.contains(element))
                {
                    element.style.position = 'absolute';
                    element.style.pointerEvents = 'auto';