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- /*!
- * Stylus - Group
- * Copyright (c) Automattic <developer.wordpress.com>
- * MIT Licensed
- */
- /**
- * Module dependencies.
- */
- var Node = require('./node');
- /**
- * Initialize a new `Group`.
- *
- * @api public
- */
- var Group = module.exports = function Group(){
- Node.call(this);
- this.nodes = [];
- this.extends = [];
- };
- /**
- * Inherit from `Node.prototype`.
- */
- Group.prototype.__proto__ = Node.prototype;
- /**
- * Push the given `selector` node.
- *
- * @param {Selector} selector
- * @api public
- */
- Group.prototype.push = function(selector){
- this.nodes.push(selector);
- };
- /**
- * Return this set's `Block`.
- */
- Group.prototype.__defineGetter__('block', function(){
- return this.nodes[0].block;
- });
- /**
- * Assign `block` to each selector in this set.
- *
- * @param {Block} block
- * @api public
- */
- Group.prototype.__defineSetter__('block', function(block){
- for (var i = 0, len = this.nodes.length; i < len; ++i) {
- this.nodes[i].block = block;
- }
- });
- /**
- * Check if this set has only placeholders.
- *
- * @return {Boolean}
- * @api public
- */
- Group.prototype.__defineGetter__('hasOnlyPlaceholders', function(){
- return this.nodes.every(function(selector) { return selector.isPlaceholder; });
- });
- /**
- * Return a clone of this node.
- *
- * @return {Node}
- * @api public
- */
- Group.prototype.clone = function(parent){
- var clone = new Group;
- clone.lineno = this.lineno;
- clone.column = this.column;
- this.nodes.forEach(function(node){
- clone.push(node.clone(parent, clone));
- });
- clone.filename = this.filename;
- clone.block = this.block.clone(parent, clone);
- return clone;
- };
- /**
- * Return a JSON representation of this node.
- *
- * @return {Object}
- * @api public
- */
- Group.prototype.toJSON = function(){
- return {
- __type: 'Group',
- nodes: this.nodes,
- block: this.block,
- lineno: this.lineno,
- column: this.column,
- filename: this.filename
- };
- };
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