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    nsIAccessibleTreeCache

    Obsolete since Gecko 1.9.2 (Firefox 3.6 / Thunderbird 3.1 / Fennec 1.0)
    This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

    A private interface to operate with tree accessible.

    Please add a summary to this article.
      Last changed in Gecko 1.9.1 (Firefox 3.5 / Thunderbird 3.0 / SeaMonkey 2.0)

    Inherits from: nsISupports

    Method overview

    nsIAccessible getCachedTreeitemAccessible(in long aRow, in nsITreeColumn aColumn);
    void invalidateCache(in long aRow, in long aCount);
    void treeViewChanged();
    void treeViewInvalidated(in long aStartRow, in long aEndRow, in long aStartCol, in long aEndCol);

    Methods

    getCachedTreeitemAccessible()

    Returns the tree item from the cache for the cell in the specified row and column; the nsIAccessible is created if it doesn't already exist in the cache.

    nsIAccessible getCachedTreeitemAccessible(
      in long aRow,
      in nsITreeColumn aColumn
    );
    
    Parameters
    aRow
    The row index.
    aColumn
    The column object. If is is null then the primary column is used. It makes sense for ATK only.
    Return value

    The nsIAccessible corresponding to the specified tree cell.

    Requires Gecko 1.9.1 (Firefox 3.5 / Thunderbird 3.0 / SeaMonkey 2.0)

    invalidateCache()

    Invalidates the number of cached treeitem accessibles.

    void invalidateCache(
      in long aRow,
      in long aCount
    );
    
    Parameters
    aRow
    Row index the invalidation starts from.
    aCount
    The number of treeitem accessibles to invalidate, the number sign specifies whether rows have been inserted (plus) or removed (minus)

    Requires Gecko 1.9.1 (Firefox 3.5 / Thunderbird 3.0 / SeaMonkey 2.0)

    treeViewChanged()

    Invalidates children created for the previous tree view.

    void treeViewChanged();
    
    Parameters

    None.

    Requires Gecko 1.9.1 (Firefox 3.5 / Thunderbird 3.0 / SeaMonkey 2.0)

    treeViewInvalidated()

    Fires name change events for invalidated area of tree.

    void treeViewInvalidated(
      in long aStartRow,
      in long aEndRow,
      in long aStartCol,
      in long aEndCol
    );
    
    Parameters
    aStartRow
    Row index invalidation starts from.
    aEndRow
    Row index invalidation ends, -1 means the last row index.
    aStartCol
    Column index invalidation starts from.
    aEndCol
    Column index invalidation ends, -1 means the last column index.

    Document Tags and Contributors

    Contributors to this page: Kglee, trevorh, Sheppy
    Last updated by: Sheppy,