Center Composition.jsx

/**
 * @name Center Composition
 * @version 1.3
 * @author Kyle Martinez <www.kyle-martinez.com>
 *
 * @description Center the composition in the Composition Panel. Hold the ALT key or SHIFT key for
 * other zoom levels.
 *
 * @license This script is provided "as is," without warranty of any kind, expressed or implied. In
 * no event shall the author be held liable for any damages arising in any way from the use of this
 * script.
 *
 * In other words, I'm just trying to help make life as an animator easier
 * "A rising tide lifts all boats." - John F. Kennedy, 1963
 */

(function() {
    var zoom = 0.5;
    if (ScriptUI.environment.keyboardState.altKey === true) {
        zoom = 1;
    }
    if (ScriptUI.environment.keyboardState.shiftKey === true) {
        zoom = 0.25;
    }
    app.activeViewer.views[0].options.zoom = zoom;
})();