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			54 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
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			54 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this
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|  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
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| [Func="IsChromeOrXBL"]
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| interface TreeColumns {
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|   /**
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|    * The tree widget for these columns.
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|    */
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|   readonly attribute TreeBoxObject? tree;
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| 
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|   /**
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|    * The number of columns.
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|    */
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|   readonly attribute unsigned long count;
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| 
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|   /**
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|    * An alias for count (for the benefit of scripts which treat this as an
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|    * array).
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|    */
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|   readonly attribute unsigned long length;
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| 
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|   /**
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|    * Get the first/last column.
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|    */
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|   TreeColumn? getFirstColumn();
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|   TreeColumn? getLastColumn();
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| 
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|   /**
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|    * Attribute based column getters.
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|    */
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|   TreeColumn? getPrimaryColumn();
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|   TreeColumn? getSortedColumn();
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|   TreeColumn? getKeyColumn();
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| 
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|   /**
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|    * Get the column for the given element.
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|    */
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|   TreeColumn? getColumnFor(Element? element);
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| 
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|   /**
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|    * Parametric column getters.
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|    */
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|   getter TreeColumn? getNamedColumn(DOMString name);
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|   getter TreeColumn? getColumnAt(unsigned long index);
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| 
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|   /**
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|    * This method is called whenever a treecol is added or removed and
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|    * the column cache needs to be rebuilt.
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|    */
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|   void invalidateColumns();
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| 
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|   void restoreNaturalOrder();
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| };
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