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Introduce private Item#_clone(copy), so subclasses can override the way the copy is actually produced, e.g. providing parameters to the constructor.

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Jürg Lehni 2011-05-20 08:50:09 +01:00
parent fd8ceb9641
commit 87d340e525
1 changed files with 4 additions and 1 deletions
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5
src/item/Item.js
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@ -30,7 +30,10 @@ var Item = this.Item = Base.extend({
* @return the newly cloned item * @return the newly cloned item
*/ */
clone: function() { clone: function() {
var copy = new this.constructor(); return this._clone(new this.constructor());
},
_clone: function(copy) {
// Copy over style // Copy over style
copy.setStyle(this._style); copy.setStyle(this._style);
// If this item has children, clone and append each of them: // If this item has children, clone and append each of them: