fpicker/source/win32/VistaFilePickerEventHandler.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include "VistaFilePickerEventHandler.hxx"
  22
  23 #include "asyncrequests.hxx"
  24
  25 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  26 #include <com/sun/star/embed/XStorage.hpp>
  27 #include <com/sun/star/document/XDocumentRevisionListPersistence.hpp>
  28 #include <com/sun/star/util/RevisionTag.hpp>
  29 #include <com/sun/star/ui/dialogs/CommonFilePickerElementIds.hpp>
  30 #include <com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.hpp>
  31
  32 #include <osl/file.hxx>
  33
  34
  35 // namespace directives
  36
  37
  38 namespace fpicker{
  39 namespace win32{
  40 namespace vista{
  41
  42
  43 VistaFilePickerEventHandler::VistaFilePickerEventHandler(IVistaFilePickerInternalNotify* pInternalNotify)
  44     : m_nRefCount           (0       )
  45     , m_nListenerHandle     (0       )
  46     , m_pDialog             (        )
  47     , m_pInternalNotify     (pInternalNotify)
  48     , m_lListener           (m_aMutex)
  49 {
  50 }
  51
  52
  53 VistaFilePickerEventHandler::~VistaFilePickerEventHandler()
  54 {
  55 }
  56
  57
  58 HRESULT STDMETHODCALLTYPE VistaFilePickerEventHandler::QueryInterface(REFIID rIID    ,
  59                                                                       void** ppObject)
  60 {
  61     *ppObject=nullptr;
  62
  63     if ( rIID == IID_IUnknown )
  64         *ppObject = static_cast<IUnknown*>(static_cast<IFileDialogEvents*>(this));
  65
  66     if ( rIID == IID_IFileDialogEvents )
  67         *ppObject = static_cast<IFileDialogEvents*>(this);
  68
  69     if ( rIID == IID_IFileDialogControlEvents )
  70         *ppObject = static_cast<IFileDialogControlEvents*>(this);
  71
  72     if ( *ppObject != nullptr )
  73     {
  74         static_cast<IUnknown*>(*ppObject)->AddRef();
  75         return S_OK;
  76     }
  77
  78     return E_NOINTERFACE;
  79 }
  80
  81
  82 ULONG STDMETHODCALLTYPE VistaFilePickerEventHandler::AddRef()
  83 {
  84     return osl_atomic_increment(&m_nRefCount);
  85 }
  86
  87
  88 ULONG STDMETHODCALLTYPE VistaFilePickerEventHandler::Release()
  89 {
  90     ULONG nReturn = --m_nRefCount;
  91     if ( m_nRefCount == 0 )
  92         delete this;
  93
  94     return nReturn;
  95 }
  96
  97
  98 STDMETHODIMP VistaFilePickerEventHandler::OnFileOk(IFileDialog* /*pDialog*/)
  99 {
 100     return E_NOTIMPL;
 101 }
 102
 103
 104 STDMETHODIMP VistaFilePickerEventHandler::OnFolderChanging(IFileDialog* /*pDialog*/,
 105                                                            IShellItem*  /*pFolder*/)
 106 {
 107     return E_NOTIMPL;
 108 }
 109
 110
 111 STDMETHODIMP VistaFilePickerEventHandler::OnFolderChange(IFileDialog* /*pDialog*/)
 112 {
 113     impl_sendEvent(E_DIRECTORY_CHANGED, 0);
 114     return S_OK;
 115 }
 116
 117
 118 STDMETHODIMP VistaFilePickerEventHandler::OnSelectionChange(IFileDialog* /*pDialog*/)
 119 {
 120     impl_sendEvent(E_FILE_SELECTION_CHANGED, 0);
 121     return S_OK;
 122 }
 123
 124
 125 STDMETHODIMP VistaFilePickerEventHandler::OnShareViolation(IFileDialog*                 /*pDialog*/  ,
 126
 127                                                            IShellItem*                  /*pItem*/    ,
 128
 129                                                            FDE_SHAREVIOLATION_RESPONSE* /*pResponse*/)
 130 {
 131     impl_sendEvent(E_CONTROL_STATE_CHANGED, css::ui::dialogs::CommonFilePickerElementIds::LISTBOX_FILTER);
 132     return S_OK;
 133 }
 134
 135
 136 STDMETHODIMP VistaFilePickerEventHandler::OnTypeChange(IFileDialog* pDialog)
 137 {
 138     UINT nFileTypeIndex;
 139     HRESULT hResult = pDialog->GetFileTypeIndex( &nFileTypeIndex );
 140
 141     if ( hResult == S_OK )
 142     {
 143         if ( m_pInternalNotify->onFileTypeChanged( nFileTypeIndex ))
 144             impl_sendEvent(E_CONTROL_STATE_CHANGED, css::ui::dialogs::CommonFilePickerElementIds::LISTBOX_FILTER);
 145     }
 146
 147     return S_OK;
 148 }
 149
 150
 151 STDMETHODIMP VistaFilePickerEventHandler::OnOverwrite(IFileDialog*            /*pDialog*/  ,
 152                                                       IShellItem*             /*pItem*/    ,
 153                                                       FDE_OVERWRITE_RESPONSE* /*pResponse*/)
 154 {
 155     return E_NOTIMPL;
 156 }
 157
 158
 159 STDMETHODIMP VistaFilePickerEventHandler::OnItemSelected(IFileDialogCustomize* /*pCustomize*/,
 160
 161                                                          DWORD                   nIDCtl      ,
 162
 163                                                          DWORD                 /*nIDItem*/   )
 164 {
 165
 166     impl_sendEvent(E_CONTROL_STATE_CHANGED, static_cast<sal_Int16>( nIDCtl ));
 167     return S_OK;
 168 }
 169
 170
 171 STDMETHODIMP VistaFilePickerEventHandler::OnButtonClicked(IFileDialogCustomize* /*pCustomize*/,
 172                                                           DWORD                 nIDCtl    )
 173 {
 174
 175     impl_sendEvent(E_CONTROL_STATE_CHANGED, static_cast<sal_Int16>( nIDCtl));
 176     return S_OK;
 177 }
 178
 179
 180 STDMETHODIMP VistaFilePickerEventHandler::OnCheckButtonToggled(IFileDialogCustomize* /*pCustomize*/,
 181                                                                DWORD                 nIDCtl    ,
 182                                                                BOOL                  bChecked  )
 183 {
 184     if (nIDCtl == css::ui::dialogs::ExtendedFilePickerElementIds::CHECKBOX_AUTOEXTENSION)
 185         m_pInternalNotify->onAutoExtensionChanged(bChecked);
 186
 187     impl_sendEvent(E_CONTROL_STATE_CHANGED, static_cast<sal_Int16>( nIDCtl));
 188
 189     return S_OK;
 190 }
 191
 192
 193 STDMETHODIMP VistaFilePickerEventHandler::OnControlActivating(IFileDialogCustomize* /*pCustomize*/,
 194                                                               DWORD                 nIDCtl    )
 195 {
 196     impl_sendEvent(E_CONTROL_STATE_CHANGED, static_cast<sal_Int16>( nIDCtl));
 197     return S_OK;
 198 }
 199
 200
 201 void VistaFilePickerEventHandler::addFilePickerListener( const css::uno::Reference< css::ui::dialogs::XFilePickerListener >& xListener )
 202 {
 203     m_lListener.addInterface(cppu::UnoType<css::ui::dialogs::XFilePickerListener>::get(), xListener);
 204 }
 205
 206
 207 void VistaFilePickerEventHandler::removeFilePickerListener( const css::uno::Reference< css::ui::dialogs::XFilePickerListener >& xListener )
 208 {
 209     m_lListener.removeInterface(cppu::UnoType<css::ui::dialogs::XFilePickerListener>::get(), xListener);
 210 }
 211
 212
 213 void VistaFilePickerEventHandler::startListening( const TFileDialog& pBroadcaster )
 214 {
 215     if (m_pDialog.is())
 216         return;
 217
 218     m_pDialog = pBroadcaster;
 219     m_pDialog->Advise(this, &m_nListenerHandle);
 220 }
 221
 222
 223 void VistaFilePickerEventHandler::stopListening()
 224 {
 225     if (m_pDialog.is())
 226     {
 227         m_pDialog->Unadvise(m_nListenerHandle);
 228         m_pDialog.release();
 229     }
 230 }
 231
 232 static const char PROP_CONTROL_ID[] = "control_id";
 233 static const char PROP_PICKER_LISTENER[] = "picker_listener";
 234
 235
 236 class AsyncPickerEvents : public RequestHandler
 237 {
 238 public:
 239
 240     AsyncPickerEvents()
 241     {}
 242
 243     virtual void before() override
 244     {}
 245
 246     virtual void doRequest(const RequestRef& rRequest) override
 247     {
 248         const ::sal_Int32 nEventID   = rRequest->getRequest();
 249         const ::sal_Int16 nControlID = rRequest->getArgumentOrDefault(PROP_CONTROL_ID, ::sal_Int16(0));
 250         const css::uno::Reference< css::ui::dialogs::XFilePickerListener > xListener = rRequest->getArgumentOrDefault(PROP_PICKER_LISTENER, css::uno::Reference< css::ui::dialogs::XFilePickerListener >());
 251
 252         if ( ! xListener.is())
 253             return;
 254
 255         css::ui::dialogs::FilePickerEvent aEvent;
 256         aEvent.ElementId = nControlID;
 257
 258         switch (nEventID)
 259         {
 260             case VistaFilePickerEventHandler::E_FILE_SELECTION_CHANGED :
 261                     xListener->fileSelectionChanged(aEvent);
 262                     break;
 263
 264             case VistaFilePickerEventHandler::E_DIRECTORY_CHANGED :
 265                     xListener->directoryChanged(aEvent);
 266                     break;
 267
 268             case VistaFilePickerEventHandler::E_HELP_REQUESTED :
 269                     xListener->helpRequested(aEvent);
 270                     break;
 271
 272             case VistaFilePickerEventHandler::E_CONTROL_STATE_CHANGED :
 273                     xListener->controlStateChanged(aEvent);
 274                     break;
 275
 276             case VistaFilePickerEventHandler::E_DIALOG_SIZE_CHANGED :
 277                     xListener->dialogSizeChanged();
 278                     break;
 279
 280             // no default here. Let compiler detect changes on enum set !
 281         }
 282     }
 283
 284     virtual void after() override
 285     {}
 286 };
 287
 288
 289 void VistaFilePickerEventHandler::impl_sendEvent(  EEventType eEventType,
 290                                                  ::sal_Int16  nControlID)
 291 {
 292     // See special handling in ~AsyncRequests for this static
 293     static AsyncRequests aNotify(RequestHandlerRef(new AsyncPickerEvents()));
 294
 295     ::cppu::OInterfaceContainerHelper* pContainer = m_lListener.getContainer( cppu::UnoType<css::ui::dialogs::XFilePickerListener>::get());
 296     if ( ! pContainer)
 297         return;
 298
 299     ::cppu::OInterfaceIteratorHelper pIterator(*pContainer);
 300     while (pIterator.hasMoreElements())
 301     {
 302         try
 303         {
 304             css::uno::Reference< css::ui::dialogs::XFilePickerListener > xListener (pIterator.next(), css::uno::UNO_QUERY);
 305
 306             RequestRef rRequest(new Request());
 307             rRequest->setRequest (eEventType);
 308             rRequest->setArgument(PROP_PICKER_LISTENER, xListener);
 309             if ( nControlID )
 310                 rRequest->setArgument(PROP_CONTROL_ID, nControlID);
 311
 312             aNotify.triggerRequestDirectly(rRequest);
 313             //aNotify.triggerRequestNonBlocked(rRequest);
 314         }
 315         catch(const css::uno::RuntimeException&)
 316         {
 317             pIterator.remove();
 318         }
 319     }
 320 }
 321
 322 } // namespace vista
 323 } // namespace win32
 324 } // namespace fpicker
 325
 326 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */