jitsi-meet/modules/UI/util/UIUtil.js

/**
 * Created by hristo on 12/22/14.
 */
module.exports = {
    /**
     * Returns the available video width.
     */
    getAvailableVideoWidth: function () {
        var PanelToggler = require("../side_pannels/SidePanelToggler");
        var rightPanelWidth
            = PanelToggler.isVisible() ? PanelToggler.getPanelSize()[0] : 0;

        return window.innerWidth - rightPanelWidth;
    },
    /**
     * Changes the style class of the element given by id.
     */
    buttonClick: function(id, classname) {
        $(id).toggleClass(classname); // add the class to the clicked element
    }


};