LCOV - code coverage report
Current view: top level - sd/source/ui/slidesorter/controller - SlsFocusManager.cxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 42 121 34.7 %
Date: 2015-06-13 12:38:46 Functions: 13 21 61.9 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : #include "controller/SlsFocusManager.hxx"
      21             : 
      22             : #include "SlideSorter.hxx"
      23             : #include "PaneDockingWindow.hxx"
      24             : #include "controller/SlideSorterController.hxx"
      25             : #include "controller/SlsCurrentSlideManager.hxx"
      26             : #include "controller/SlsVisibleAreaManager.hxx"
      27             : #include "model/SlideSorterModel.hxx"
      28             : #include "model/SlsPageDescriptor.hxx"
      29             : #include "view/SlideSorterView.hxx"
      30             : #include "view/SlsLayouter.hxx"
      31             : #include <vcl/toolbox.hxx>
      32             : 
      33             : #include "Window.hxx"
      34             : #include "sdpage.hxx"
      35             : 
      36             : namespace sd { namespace slidesorter { namespace controller {
      37             : 
      38          64 : FocusManager::FocusManager (SlideSorter& rSlideSorter)
      39             :     : mrSlideSorter(rSlideSorter),
      40             :       mnPageIndex(0),
      41             :       mbPageIsFocused(false),
      42          64 :       mbIsVerticalWrapActive(false)
      43             : {
      44          64 :     if (mrSlideSorter.GetModel().GetPageCount() > 0)
      45           0 :         mnPageIndex = 0;
      46          64 : }
      47             : 
      48          64 : FocusManager::~FocusManager()
      49             : {
      50          64 : }
      51             : 
      52           0 : void FocusManager::MoveFocus (FocusMoveDirection eDirection)
      53             : {
      54           0 :     if (mnPageIndex >= 0 && mbPageIsFocused)
      55             :     {
      56           0 :         HideFocusIndicator (GetFocusedPageDescriptor());
      57             : 
      58           0 :         const sal_Int32 nColumnCount (mrSlideSorter.GetView().GetLayouter().GetColumnCount());
      59           0 :         const sal_Int32 nPageCount (mrSlideSorter.GetModel().GetPageCount());
      60           0 :         switch (eDirection)
      61             :         {
      62             :             case FMD_NONE:
      63             :                 // Nothing to be done.
      64           0 :                 break;
      65             : 
      66             :             case FMD_LEFT:
      67           0 :                 if (mnPageIndex > 0)
      68           0 :                     mnPageIndex -= 1;
      69           0 :                 else if (mbIsVerticalWrapActive)
      70           0 :                     mnPageIndex = nPageCount-1;
      71           0 :                 break;
      72             : 
      73             :             case FMD_RIGHT:
      74           0 :                 if (mnPageIndex < nPageCount-1)
      75           0 :                     mnPageIndex += 1;
      76           0 :                 else if (mbIsVerticalWrapActive)
      77           0 :                     mnPageIndex = 0;
      78           0 :                 break;
      79             : 
      80             :             case FMD_UP:
      81             :             {
      82           0 :                 const sal_Int32 nCandidate (mnPageIndex - nColumnCount);
      83           0 :                 if (nCandidate < 0)
      84             :                 {
      85           0 :                     if (mbIsVerticalWrapActive)
      86             :                     {
      87             :                         // Wrap around to the bottom row or the one above
      88             :                         // and go to the correct column.
      89           0 :                         const sal_Int32 nLastIndex (nPageCount-1);
      90           0 :                         const sal_Int32 nLastColumn (nLastIndex % nColumnCount);
      91           0 :                         const sal_Int32 nCurrentColumn (mnPageIndex%nColumnCount);
      92           0 :                         if (nLastColumn >= nCurrentColumn)
      93             :                         {
      94             :                             // The last row contains the current column.
      95           0 :                             mnPageIndex = nLastIndex - (nLastColumn-nCurrentColumn);
      96             :                         }
      97             :                         else
      98             :                         {
      99             :                             // Only the second to last row contains the current column.
     100           0 :                             mnPageIndex = nLastIndex - nLastColumn
     101           0 :                                 - nColumnCount
     102           0 :                                 + nCurrentColumn;
     103             :                         }
     104             :                     }
     105             :                 }
     106             :                 else
     107             :                 {
     108             :                     // Move the focus the previous row.
     109           0 :                     mnPageIndex = nCandidate;
     110             :                 }
     111             :             }
     112           0 :             break;
     113             : 
     114             :             case FMD_DOWN:
     115             :             {
     116           0 :                 const sal_Int32 nCandidate (mnPageIndex + nColumnCount);
     117           0 :                 if (nCandidate >= nPageCount)
     118             :                 {
     119           0 :                     if (mbIsVerticalWrapActive)
     120             :                     {
     121             :                         // Wrap around to the correct column.
     122           0 :                         mnPageIndex = mnPageIndex % nColumnCount;
     123             :                     }
     124             :                     else
     125             :                     {
     126             :                         // Do not move the focus.
     127             :                     }
     128             :                 }
     129             :                 else
     130             :                 {
     131             :                     // Move the focus to the next row.
     132           0 :                     mnPageIndex = nCandidate;
     133             :                 }
     134             :             }
     135           0 :             break;
     136             :         }
     137             : 
     138           0 :         if (mnPageIndex < 0)
     139             :         {
     140             :             OSL_ASSERT(mnPageIndex>=0);
     141           0 :             mnPageIndex = 0;
     142             :         }
     143           0 :         else if (mnPageIndex >= nPageCount)
     144             :         {
     145             :             OSL_ASSERT(mnPageIndex<nPageCount);
     146           0 :             mnPageIndex = nPageCount - 1;
     147             :         }
     148             : 
     149           0 :         if (mbPageIsFocused)
     150             :         {
     151           0 :             ShowFocusIndicator(GetFocusedPageDescriptor(), true);
     152             :         }
     153             :     }
     154           0 : }
     155             : 
     156           0 : void FocusManager::ShowFocus (const bool bScrollToFocus)
     157             : {
     158           0 :     mbPageIsFocused = true;
     159           0 :     ShowFocusIndicator(GetFocusedPageDescriptor(), bScrollToFocus);
     160           0 : }
     161             : 
     162          85 : void FocusManager::HideFocus()
     163             : {
     164          85 :     mbPageIsFocused = false;
     165          85 :     HideFocusIndicator(GetFocusedPageDescriptor());
     166          85 : }
     167             : 
     168           0 : bool FocusManager::ToggleFocus()
     169             : {
     170           0 :     if (mnPageIndex >= 0)
     171             :     {
     172           0 :         if (mbPageIsFocused)
     173           0 :             HideFocus ();
     174             :         else
     175           0 :             ShowFocus ();
     176             :     }
     177           0 :     return mbPageIsFocused;
     178             : }
     179             : 
     180          85 : bool FocusManager::HasFocus() const
     181             : {
     182          85 :     return mrSlideSorter.GetContentWindow()->HasFocus();
     183             : }
     184             : 
     185          85 : model::SharedPageDescriptor FocusManager::GetFocusedPageDescriptor() const
     186             : {
     187          85 :     return mrSlideSorter.GetModel().GetPageDescriptor(mnPageIndex);
     188             : }
     189             : 
     190          85 : void FocusManager::SetFocusedPage (const model::SharedPageDescriptor& rpDescriptor)
     191             : {
     192          85 :     if (rpDescriptor.get() != NULL)
     193             :     {
     194          85 :         FocusHider aFocusHider (*this);
     195          85 :         mnPageIndex = (rpDescriptor->GetPage()->GetPageNum()-1)/2;
     196             :     }
     197          85 : }
     198             : 
     199           0 : void FocusManager::SetFocusedPage (sal_Int32 nPageIndex)
     200             : {
     201           0 :     FocusHider aFocusHider (*this);
     202           0 :     mnPageIndex = nPageIndex;
     203           0 : }
     204             : 
     205           0 : void FocusManager::SetFocusedPageToCurrentPage()
     206             : {
     207           0 :     SetFocusedPage(mrSlideSorter.GetController().GetCurrentSlideManager()->GetCurrentSlide());
     208           0 : }
     209             : 
     210          85 : bool FocusManager::IsFocusShowing() const
     211             : {
     212          85 :     return HasFocus() && mbPageIsFocused;
     213             : }
     214             : 
     215          85 : void FocusManager::HideFocusIndicator (const model::SharedPageDescriptor& rpDescriptor)
     216             : {
     217          85 :     if (rpDescriptor.get() != NULL)
     218             :     {
     219          82 :         mrSlideSorter.GetView().SetState(rpDescriptor, model::PageDescriptor::ST_Focused, false);
     220             : 
     221             :         // Hide focus should also fire the focus event, Currently, only accessibility add the focus listener
     222          82 :         NotifyFocusChangeListeners();
     223             :     }
     224          85 : }
     225             : 
     226           0 : void FocusManager::ShowFocusIndicator (
     227             :     const model::SharedPageDescriptor& rpDescriptor,
     228             :     const bool bScrollToFocus)
     229             : {
     230           0 :     if (rpDescriptor.get() != NULL)
     231             :     {
     232           0 :         mrSlideSorter.GetView().SetState(rpDescriptor, model::PageDescriptor::ST_Focused, true);
     233             : 
     234           0 :         if (bScrollToFocus)
     235             :         {
     236             :             // Scroll the focused page object into the visible area and repaint
     237             :             // it, so that the focus indicator becomes visible.
     238           0 :             mrSlideSorter.GetController().GetVisibleAreaManager().RequestVisible(rpDescriptor,true);
     239             :         }
     240           0 :         mrSlideSorter.GetView().RequestRepaint(rpDescriptor);
     241             : 
     242           0 :         NotifyFocusChangeListeners();
     243             :     }
     244           0 : }
     245             : 
     246           0 : void FocusManager::AddFocusChangeListener (const Link<>& rListener)
     247             : {
     248           0 :     if (::std::find (maFocusChangeListeners.begin(), maFocusChangeListeners.end(), rListener)
     249           0 :         == maFocusChangeListeners.end())
     250             :     {
     251           0 :         maFocusChangeListeners.push_back (rListener);
     252             :     }
     253           0 : }
     254             : 
     255           0 : void FocusManager::RemoveFocusChangeListener (const Link<>& rListener)
     256             : {
     257             :     maFocusChangeListeners.erase (
     258           0 :         ::std::find (maFocusChangeListeners.begin(), maFocusChangeListeners.end(), rListener));
     259           0 : }
     260             : 
     261          82 : void FocusManager::NotifyFocusChangeListeners() const
     262             : {
     263             :     // Create a copy of the listener list to be safe when that is modified.
     264          82 :     ::std::vector<Link<>> aListeners (maFocusChangeListeners);
     265             : 
     266             :     // Tell the selection change listeners that the selection has changed.
     267          82 :     ::std::vector<Link<>>::iterator iListener (aListeners.begin());
     268          82 :     ::std::vector<Link<>>::iterator iEnd (aListeners.end());
     269          82 :     for (; iListener!=iEnd; ++iListener)
     270             :     {
     271           0 :         iListener->Call(NULL);
     272          82 :     }
     273          82 : }
     274             : 
     275          85 : FocusManager::FocusHider::FocusHider (FocusManager& rManager)
     276          85 : : mbFocusVisible(rManager.IsFocusShowing())
     277          85 : , mrManager(rManager)
     278             : {
     279          85 :     mrManager.HideFocus();
     280          85 : }
     281             : 
     282          85 : FocusManager::FocusHider::~FocusHider()
     283             : {
     284          85 :     if (mbFocusVisible)
     285           0 :         mrManager.ShowFocus();
     286          85 : }
     287             : 
     288          66 : } } } // end of namespace ::sd::slidesorter::controller
     289             : 
     290             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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