lowcode-engine/packages/material-parser/test/fixtures/fusion-next-component/es/overlay/manager.js

var overlayManager = {
    allOverlays: [],

    addOverlay: function addOverlay(overlay) {
        this.removeOverlay(overlay);
        this.allOverlays.unshift(overlay);
    },
    isCurrentOverlay: function isCurrentOverlay(overlay) {
        return overlay && this.allOverlays[0] === overlay;
    },
    removeOverlay: function removeOverlay(overlay) {
        var i = this.allOverlays.indexOf(overlay);
        if (i > -1) {
            this.allOverlays.splice(i, 1);
        }
    }
};

export default overlayManager;