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