125 lines
2.2 KiB
JavaScript
125 lines
2.2 KiB
JavaScript
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/*!
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* Stylus - Block
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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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module.exports = class Block extends Node {
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/**
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* Initialize a new `Block` node with `parent` Block.
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*
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* @param {Block} parent
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* @api public
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*/
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constructor(parent, node) {
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super();
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this.nodes = [];
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this.parent = parent;
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this.node = node;
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this.scope = true;
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}
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/**
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* Check if this block has properties..
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*
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* @return {Boolean}
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* @api public
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*/
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get hasProperties() {
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for (var i = 0, len = this.nodes.length; i < len; ++i) {
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if ('property' == this.nodes[i].nodeName) {
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return true;
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}
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}
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};
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/**
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* Check if this block has @media nodes.
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*
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* @return {Boolean}
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* @api public
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*/
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get hasMedia() {
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for (var i = 0, len = this.nodes.length; i < len; ++i) {
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var nodeName = this.nodes[i].nodeName;
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if ('media' == nodeName) {
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return true;
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}
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}
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return false;
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};
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/**
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* Check if this block is empty.
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*
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* @return {Boolean}
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* @api public
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*/
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get isEmpty() {
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return !this.nodes.length || this.nodes.every(function (n) { return n.nodeName == 'comment' });
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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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clone(parent, node) {
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parent = parent || this.parent;
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var clone = new Block(parent, node || this.node);
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clone.lineno = this.lineno;
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clone.column = this.column;
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clone.filename = this.filename;
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clone.scope = this.scope;
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this.nodes.forEach(function (node) {
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clone.push(node.clone(clone, clone));
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});
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return clone;
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};
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/**
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* Push a `node` to this block.
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*
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* @param {Node} node
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* @api public
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*/
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push(node) {
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this.nodes.push(node);
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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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toJSON() {
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return {
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__type: 'Block',
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// parent: this.parent,
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// node: this.node,
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scope: this.scope,
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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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nodes: this.nodes
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};
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};
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};
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