Method change

systemvm/agent/noVNC/core/util/cursor.js:80–106

(rgba, hotx, hoty, w, h)

    }

    change(rgba, hotx, hoty, w, h) {
        if ((w === 0) || (h === 0)) {
            this.clear();
            return;
        }

        this._position.x = this._position.x + this._hotSpot.x - hotx;
        this._position.y = this._position.y + this._hotSpot.y - hoty;
        this._hotSpot.x = hotx;
        this._hotSpot.y = hoty;

        let ctx = this._canvas.getContext('2d');

        this._canvas.width = w;
        this._canvas.height = h;

        let img = new ImageData(new Uint8ClampedArray(rgba), w, h);
        ctx.clearRect(0, 0, w, h);
        ctx.putImageData(img, 0, 0);

        if (useFallback) {
            this._updatePosition();
        } else {
            let url = this._canvas.toDataURL();
            this._target.style.cursor = 'url(' + url + ')' + hotx + ' ' + hoty + ', default';
        }
    }

    clear() {
        this._target.style.cursor = 'none';