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 24 #ifndef _SVX_ACCESSIBLEEMPTYEDITSOURCE_HXX 25 #define _SVX_ACCESSIBLEEMPTYEDITSOURCE_HXX 26 27 #include <svl/brdcst.hxx> 28 #include <svl/lstner.hxx> 29 30 #include <memory> 31 #include <editeng/unoedsrc.hxx> 32 33 class SdrObject; 34 class SdrView; 35 class Window; 36 37 namespace accessibility 38 { 39 /** Proxy edit source for shapes without text 40 41 Extracted from old SvxDummyEditSource 42 */ 43 class AccessibleEmptyEditSource : public SvxEditSource, public SfxListener, public SfxBroadcaster 44 { 45 public: 46 /** Create proxy edit source for shapes without text 47 48 Since the views don't broadcast their dying, make sure that 49 this object gets destroyed if the view becomes invalid 50 51 The window is necessary, since our views can display on multiple windows 52 53 Make sure you only create such an object if the shape _really_ 54 does not contain text. 55 */ 56 AccessibleEmptyEditSource( SdrObject& rObj, SdrView& rView, const Window& rViewWindow ); 57 ~AccessibleEmptyEditSource(); 58 59 // from the SvxEditSource interface 60 SvxTextForwarder* GetTextForwarder(); 61 SvxViewForwarder* GetViewForwarder(); 62 63 SvxEditSource* Clone() const; 64 65 // this method internally switches from empty to proxy mode, 66 // creating an SvxTextEditSource for the functionality. 67 SvxEditViewForwarder* GetEditViewForwarder( sal_Bool bCreate = sal_False ); 68 69 void UpdateData(); 70 SfxBroadcaster& GetBroadcaster() const; 71 72 // from the SfxListener interface 73 void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ); 74 75 private: 76 void Switch2ProxyEditSource(); 77 78 /** Pointer to edit source implementation. This is switched on 79 a GetEditViewForwarder( true ) call, to actually create a 80 SvxTextEditSource. 81 82 @dyn 83 */ 84 std::auto_ptr< SvxEditSource > mpEditSource; 85 86 SdrObject& mrObj; 87 SdrView& mrView; 88 const Window& mrViewWindow; 89 90 bool mbEditSourceEmpty; 91 }; 92 93 } // namespace accessibility 94 95 #endif 96 97