1/************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23#ifndef __com_sun_star_awt_tree_XTreeExpansionListener_idl__ 24#define __com_sun_star_awt_tree_XTreeExpansionListener_idl__ 25 26#ifndef __com_sun_star_lang_XEventListener_idl__ 27#include <com/sun/star/lang/XEventListener.idl> 28#endif 29 30#ifndef __com_sun_star_awt_tree_TreeExpansionEvent_idl__ 31#include <com/sun/star/awt/tree/TreeExpansionEvent.idl> 32#endif 33 34#ifndef __com_sun_star_awt_tree_ExpandVetoException_idl__ 35#include <com/sun/star/awt/tree/ExpandVetoException.idl> 36#endif 37 38//============================================================================= 39 40module com { module sun { module star { module awt { module tree { 41 42//============================================================================= 43 44/** An instance of this interface can get notifications from a <type>TreeControl</type> 45 when nodes are expanded or collapsed. 46 47 @see XTreeControl::addTreeExpansionListener 48 @see XTreeControl::removeTreeExpansionListener 49 */ 50published interface XTreeExpansionListener: com::sun::star::lang::XEventListener 51{ 52 /** Invoked when a node with children on demand is about to be expanded. 53 54 <p>This event is invoked befor the <method>treeExpanding()</method> 55 event.</p> 56 */ 57 void requestChildNodes( [in] TreeExpansionEvent Event ); 58 59 /** Invoked whenever a node in the tree is about to be expanded. 60 61 @throws ExpandVetoException 62 to notify the calling <type>XTreeControl</type> that expanding 63 <member>TreeExpansionEvent::Node</member> should faild. 64 */ 65 void treeExpanding( [in] TreeExpansionEvent Event ) 66 raises ( ExpandVetoException ); 67 68 /** Invoked whenever a node in the tree is about to be collapsed. 69 70 @throws ExpandVetoException 71 to notify the calling <type>XTreeControl</type> that collapsing 72 <member>TreeExpansionEvent::Node</member> should faild. 73 */ 74 void treeCollapsing( [in] TreeExpansionEvent Event ) 75 raises ( ExpandVetoException ); 76 77 /** Called whenever a node in the tree has been successfully expanded. */ 78 void treeExpanded( [in] TreeExpansionEvent Event ); 79 80 /** Called whenever a node in the tree has been successfully collapsed. */ 81 void treeCollapsed( [in] TreeExpansionEvent Event ); 82}; 83 84//============================================================================= 85 86}; }; }; }; }; 87 88#endif 89