Current File : //www/varak.net/wiki.varak.net/extensions/VisualEditor/lib/ve/src/ui/ve.ui.ModeledFactory.js
/*!
* VisualEditor UserInterface ModeledFactory class.
*
* @copyright 2011-2016 VisualEditor Team and others; see http://ve.mit-license.org
*/
/**
* Mixin for factories whose items associate with specific models.
*
* Classes registered with the factory should have a static method named `isCompatibleWith` that
* accepts a model and returns a boolean.
*
* @class
*
* @constructor
*/
ve.ui.ModeledFactory = function VeUiModeledFactory() {};
/* Inheritance */
OO.initClass( ve.ui.ModeledFactory );
/* Methods */
/**
* Get a list of symbolic names for classes related to a list of models.
*
* The lowest compatible item in each inheritance chain will be used.
*
* @param {Object[]} models Models to find relationships with
* @return {Object[]} List of objects containing `name` and `model` properties, representing
* each compatible class's symbolic name and the model it is compatible with
*/
ve.ui.ModeledFactory.prototype.getRelatedItems = function ( models ) {
var i, iLen, j, jLen, name, classes, model,
registry = this.registry,
names = {},
matches = [];
/**
* Collect the most specific compatible classes for a model.
*
* @private
* @param {Object} model Model to find compatibility with
* @return {Function[]} List of compatible classes
*/
function collect( model ) {
var i, len, name, candidate, add,
candidates = [];
for ( name in registry ) {
candidate = registry[ name ];
if ( candidate.static.isCompatibleWith( model ) ) {
add = true;
for ( i = 0, len = candidates.length; i < len; i++ ) {
if ( candidate.prototype instanceof candidates[ i ] ) {
candidates.splice( i, 1, candidate );
add = false;
break;
} else if ( candidates[ i ].prototype instanceof candidate ) {
add = false;
break;
}
}
if ( add ) {
candidates.push( candidate );
}
}
}
return candidates;
}
// Collect compatible classes and the models they are specifically compatible with,
// discarding class's with duplicate symbolic names
for ( i = 0, iLen = models.length; i < iLen; i++ ) {
model = models[ i ];
classes = collect( model );
for ( j = 0, jLen = classes.length; j < jLen; j++ ) {
name = classes[ j ].static.name;
if ( !names[ name ] ) {
matches.push( { name: name, model: model } );
}
names[ name ] = true;
}
}
return matches;
};
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