The Tor Browser: dom/webidl/TreeColumns.webidl@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 interface MozTreeBoxObject;

     6 interface MozTreeColumn;

     8 [Func="IsChromeOrXBL"]

     9 interface TreeColumns {

    10   /**

    11    * The tree widget for these columns.

    12    */

    13   readonly attribute MozTreeBoxObject? tree;

    15   /**

    16    * The number of columns.

    17    */

    18   readonly attribute unsigned long count;

    20   /**

    21    * An alias for count (for the benefit of scripts which treat this as an

    22    * array).

    23    */

    24   readonly attribute unsigned long length;

    26   /**

    27    * Get the first/last column.

    28    */

    29   MozTreeColumn? getFirstColumn();

    30   MozTreeColumn? getLastColumn();

    32   /**

    33    * Attribute based column getters.

    34    */

    35   MozTreeColumn? getPrimaryColumn();

    36   MozTreeColumn? getSortedColumn();

    37   MozTreeColumn? getKeyColumn();

    39   /**

    40    * Get the column for the given element.

    41    */

    42   MozTreeColumn? getColumnFor(Element? element);

    44   /**

    45    * Parametric column getters.

    46    */

    47   getter MozTreeColumn? getNamedColumn(DOMString name);

    48   getter MozTreeColumn? getColumnAt(unsigned long index);

    50   /**

    51    * This method is called whenever a treecol is added or removed and

    52    * the column cache needs to be rebuilt.

    53    */

    54   void invalidateColumns();

    56   void restoreNaturalOrder();

    57 };

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