/*!
 * Piwik - Web Analytics
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

/**
 * The given expression will be executed when the user presses either escape or presses something outside
 * of this element
 *
 * Example:
 * <div piwik-focus-anywhere-but-here="closeDialog()">my dialog</div>
 */
angular.module('piwikApp.directive').directive('piwikFocusAnywhereButHere', function($document){
    return {
        restrict: 'A',
        link: function(scope, element, attr, ctrl) {

            function onClickOutsideElement (event) {
                if (element.has(event.target).length === 0) {
                    scope.$apply(attr.piwikFocusAnywhereButHere);
                }
            }

            function onEscapeHandler (event) {
                if (event.which === 27) {
                    scope.$apply(attr.piwikFocusAnywhereButHere);
                }
            }

            $document.on('keyup', onEscapeHandler);
            $document.on('mouseup', onClickOutsideElement);
            scope.$on('$destroy', function() {
                $document.off('mouseup', onClickOutsideElement);
                $document.off('keyup', onEscapeHandler);
            });
        }
    };
});
