wikimedia/mediawiki-extensions-VisualEditor
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Add generic attribute accessors

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* addAttribute and getAttribute do the obvious and simple thing
* addNormalizedAttribute remembers an unnormalized version of an attribute and
  supports change detection for the normalized attribute
* getAttributeSource retrieves the original attribute if there was a
  normalized version which was not changed, or the current value (potentially
  based on the normalized version) otherwise. For use by the
  WikitextSerializer.

Change-Id: I72533cf6cfff1ddb88be2501653c7c47d270898c
This commit is contained in:
Gabriel Wicke 2012-07-24 17:38:45 -07:00
parent c4e7544f60
commit e3af50ea68
1 changed files with 61 additions and 1 deletions
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62
modules/parser/mediawiki.parser.defines.js
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@ -13,6 +13,60 @@ function TagTk( name, attribs, dataAttribs ) {
this.dataAttribs = dataAttribs || {};
}
/**
* Generic token attribute accessors
*/
var genericTokenMethods = {
/**
* Generic set attribute method. Expects the context to be set to a token.
*/
addAttribute: function ( attributeName, value ) {
this.attribs.push( new KV( attributeName, value ) );
},
/**
* Generic set attribute method with support for change detection. Expects the
* context to be set to a token.
*/
addNormalizedAttribute: function ( attributeName, normalizedValue, origValue ) {
this.addAttribute( attributeName, normalizedValue );
if ( ! this.dataAttribs.a ) {
this.dataAttribs.a = {};
}
this.dataAttribs.a[attributeName] = normalizedValue;
if ( origValue !== undefined ) {
if ( ! this.dataAttribs.sa ) {
this.dataAttribs.sa = {};
}
this.dataAttribs.sa[attributeName] = origValue;
}
},
/**
* Generic attribute accessor. Expects the context to be set to a token.
*/
getAttribute: function ( attributeName ) {
return Util.lookup( this.attribs, attributeName );
},
/**
* Attribute accessor for the wikitext serializer. Performs change
* detection and uses unnormalized attribute values if set. Expects the
* context to be set to a token.
*/
getAttributeSource: function ( attributeName ) {
var curVal = Util.lookup( this.attribs, attributeName );
if ( ! this.dataAttribs.a ||
this.dataAttribs.a[attributeName] !== curVal ||
this.dataAttribs.sa[attributeName] === undefined ) {
return curVal;
} else {
return this.dataAttribs.sa[attributeName];
}
}
};
TagTk.prototype = {};
TagTk.prototype.constructor = TagTk;
@ -48,6 +102,8 @@ TagTk.prototype.toString = function() {
return f ? f.bind(this)() : this.defaultToString();
}
};
// add in generic token methods
$.extend( TagTk.prototype, genericTokenMethods );
/* -------------------- EndTagTk -------------------- */
function EndTagTk( name, attribs, dataAttribs ) {
@ -71,6 +127,8 @@ EndTagTk.prototype.toString = function() {
return "</" + this.name + ">";
}
};
// add in generic token methods
$.extend( EndTagTk.prototype, genericTokenMethods );
/* -------------------- SelfclosingTagTk -------------------- */
function SelfclosingTagTk( name, attribs, dataAttribs ) {
@ -182,6 +240,8 @@ SelfclosingTagTk.prototype.toString = function(compact, indent) {
return f ? f.bind(this)(compact, indent) : this.defaultToString(compact, indent);
}
};
// add in generic token methods
$.extend( SelfclosingTagTk.prototype, genericTokenMethods );
/* -------------------- NlTk -------------------- */
function NlTk( ) { }
@ -407,7 +467,7 @@ ParserValue.prototype.length = function () {
// TODO: don't use globals!
if (typeof module == "object") {
if (typeof module === "object") {
module.exports = {};
global.TagTk = TagTk;
global.EndTagTk = EndTagTk;