Grammalecte  Diff

    _createCloseButton () {
        let xButton = createNode("div", {className: "grammalecte_close_button", textContent: "×", title: "Fermer la fenêtre"});
        xButton.onclick = function () { this.hide(); }.bind(this);  // better than writing “let that = this;” before the function?
        return xButton;
    }

    setContentNode (xNode) {
        this.xPanelContent.appendChild(xNode);
    }

    insertIntoPage () {
        document.body.appendChild(this.xPanelNode);
    }

    show () {
        this.xPanelNode.style.display = "block";
    }