mediawiki-extensions-Visual.../modules/parser/mediawiki.HTML5TreeBuilder.node.js

83 lines
2 KiB
JavaScript

/* Front-end/Wrapper for a particular tree builder, in this case the
* parser/tree builder from the node 'html5' module. Feed it tokens using
* processToken, and it will build you a DOM tree retrievable using .document
* or .body(). */
var events = require('events');
var HTML5 = require('./html5/index');
FauxHTML5 = {};
FauxHTML5.TreeBuilder = function ( ) {
// The parser we are going to emit our tokens to
this.parser = new HTML5.Parser();
// Sets up the parser
this.parser.parse(this);
this.document = this.parser.document;
return this;
};
FauxHTML5.TreeBuilder.prototype = new events.EventEmitter();
// Adapt the token format to internal HTML tree builder format, call the actual
// html tree builder by emitting the token.
FauxHTML5.TreeBuilder.prototype.processToken = function (token) {
var att = function (maybeAttribs) {
if ( $.isArray(maybeAttribs) ) {
var atts = [];
for(var i = 0, length = maybeAttribs.length; i < length; i++) {
var att = maybeAttribs[i];
atts.push({nodeName: att[0], nodeValue: att[1]});
}
return atts;
} else {
return [];
}
};
switch (token.type) {
case "TEXT":
this.emit('token', {type: 'Characters', data: token.value});
break;
case "TAG":
this.emit('token', {type: 'StartTag',
name: token.name,
data: att(token.attribs)});
break;
case "ENDTAG":
this.emit('token', {type: 'EndTag',
name: token.name,
data: att(token.attribs)});
break;
case "SELFCLOSINGTAG":
this.emit('token', {type: 'StartTag',
name: token.name,
data: att(token.attribs)});
break;
case "COMMENT":
this.emit('token', {type: 'Comment',
data: token.value});
break;
case "END":
this.emit('end');
break;
case "NEWLINE":
//this.emit('end');
break;
default:
console.log("Unhandled token: " + JSON.stringify(token));
break;
}
};
FauxHTML5.TreeBuilder.prototype.body = function () {
return this.parser.document.getElementsByTagName('body')[0];
}
if (typeof module == "object") {
module.exports.FauxHTML5 = FauxHTML5;
}