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- /*!
- * Stylus - Block
- * Copyright (c) Automattic <developer.wordpress.com>
- * MIT Licensed
- */
- /**
- * Module dependencies.
- */
- var Node = require('./node');
- /**
- * Initialize a new `Block` node with `parent` Block.
- *
- * @param {Block} parent
- * @api public
- */
- var Block = module.exports = function Block(parent, node){
- Node.call(this);
- this.nodes = [];
- this.parent = parent;
- this.node = node;
- this.scope = true;
- };
- /**
- * Inherit from `Node.prototype`.
- */
- Block.prototype.__proto__ = Node.prototype;
- /**
- * Check if this block has properties..
- *
- * @return {Boolean}
- * @api public
- */
- Block.prototype.__defineGetter__('hasProperties', function(){
- for (var i = 0, len = this.nodes.length; i < len; ++i) {
- if ('property' == this.nodes[i].nodeName) {
- return true;
- }
- }
- });
- /**
- * Check if this block has @media nodes.
- *
- * @return {Boolean}
- * @api public
- */
- Block.prototype.__defineGetter__('hasMedia', function(){
- for (var i = 0, len = this.nodes.length; i < len; ++i) {
- var nodeName = this.nodes[i].nodeName;
- if ('media' == nodeName) {
- return true;
- }
- }
- return false;
- });
- /**
- * Check if this block is empty.
- *
- * @return {Boolean}
- * @api public
- */
- Block.prototype.__defineGetter__('isEmpty', function(){
- return !this.nodes.length || this.nodes.every(function(n){return n.nodeName == 'comment'});
- });
- /**
- * Return a clone of this node.
- *
- * @return {Node}
- * @api public
- */
- Block.prototype.clone = function(parent, node){
- parent = parent || this.parent;
- var clone = new Block(parent, node || this.node);
- clone.lineno = this.lineno;
- clone.column = this.column;
- clone.filename = this.filename;
- clone.scope = this.scope;
- this.nodes.forEach(function(node){
- clone.push(node.clone(clone, clone));
- });
- return clone;
- };
- /**
- * Push a `node` to this block.
- *
- * @param {Node} node
- * @api public
- */
- Block.prototype.push = function(node){
- this.nodes.push(node);
- };
- /**
- * Return a JSON representation of this node.
- *
- * @return {Object}
- * @api public
- */
- Block.prototype.toJSON = function(){
- return {
- __type: 'Block',
- // parent: this.parent,
- // node: this.node,
- scope: this.scope,
- lineno: this.lineno,
- column: this.column,
- filename: this.filename,
- nodes: this.nodes
- };
- };
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