fpicker/source/office/breadcrumb.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
  10 #include <tools/urlobj.hxx>
  11 #include <vcl/svapp.hxx>
  12 #include "breadcrumb.hxx"
  13
  14 Breadcrumb::Breadcrumb(weld::Container* pParent)
  15     : m_pParent(pParent)
  16     , m_nMaxWidth(m_pParent->get_preferred_size().Width())
  17 {
  18     m_pParent->connect_size_allocate(LINK(this, Breadcrumb, SizeAllocHdl));
  19     m_eMode = SvtBreadcrumbMode::ONLY_CURRENT_PATH;
  20     appendField(); // root
  21 }
  22
  23 IMPL_LINK(Breadcrumb, SizeAllocHdl, const Size&, rSize, void)
  24 {
  25     m_nMaxWidth = rSize.Width();
  26 }
  27
  28 Breadcrumb::~Breadcrumb()
  29 {
  30     m_pParent->connect_size_allocate(Link<const Size&, void>());
  31 }
  32
  33 void Breadcrumb::EnableFields( bool bEnable )
  34 {
  35     if( bEnable )
  36     {
  37         INetURLObject aURL( m_aCurrentURL );
  38         int nSegments = aURL.getSegmentCount();
  39         m_aSegments[nSegments]->m_xLink->set_sensitive(false);
  40     }
  41 }
  42
  43 void Breadcrumb::connect_clicked( const Link<Breadcrumb*,bool>& rLink )
  44 {
  45     m_aClickHdl = rLink;
  46 }
  47
  48 const OUString& Breadcrumb::GetHdlURL() const
  49 {
  50     return m_sClickedURL;
  51 }
  52
  53 void Breadcrumb::SetRootName( const OUString& rURL )
  54 {
  55     m_sRootName = rURL;
  56
  57     // we changed root - clear all fields
  58     for (size_t i = 1; i < m_aSegments.size(); ++i)
  59     {
  60         m_aSegments[i]->m_xLink->set_label("");
  61
  62         m_aSegments[i]->m_xLink->hide();
  63         m_aSegments[i]->m_xSeparator->hide();
  64         m_aSegments[i]->m_xLink->set_sensitive(true);
  65     }
  66 }
  67
  68 void Breadcrumb::SetURL( const OUString& rURL )
  69 {
  70     m_aCurrentURL = rURL;
  71     INetURLObject aURL( rURL );
  72     aURL.setFinalSlash();
  73     //prepare the Host port
  74     OUString sHostPort;
  75
  76     if( aURL.HasPort() )
  77     {
  78         sHostPort += ":" + OUString::number( aURL.GetPort() );
  79     }
  80
  81     OUString sUser = aURL.GetUser( INetURLObject::DecodeMechanism::NONE );
  82     OUString sPath = aURL.GetURLPath(INetURLObject::DecodeMechanism::WithCharset);
  83     OUString sRootPath = INetURLObject::GetScheme( aURL.GetProtocol() )
  84                         + sUser
  85                         + ( sUser.isEmpty() ? OUString() : "@" )
  86                         + aURL.GetHost()
  87                         + sHostPort;
  88
  89     int nSegments = aURL.getSegmentCount();
  90     unsigned int nPos = 0;
  91
  92     bool bClear = ( m_eMode == SvtBreadcrumbMode::ONLY_CURRENT_PATH );
  93
  94     // root field
  95     m_aSegments[0]->m_xLink->set_label( m_sRootName );
  96     m_aSegments[0]->m_xLink->set_sensitive(true);
  97     m_aSegments[0]->m_xLink->set_uri(sRootPath);
  98     m_aUris[m_aSegments[0]->m_xLink.get()] = sRootPath;
  99
 100     // fill the other fields
 101
 102     for( unsigned int i = 1; i < static_cast<unsigned int>(nSegments) + 1; i++ )
 103     {
 104         if( i >= m_aSegments.size() )
 105             appendField();
 106
 107         unsigned int nEnd = sPath.indexOf( '/', nPos + 1 );
 108         OUString sLabel = sPath.copy( nPos + 1, nEnd - nPos - 1 );
 109
 110         if( m_eMode == SvtBreadcrumbMode::ALL_VISITED )
 111         {
 112             if( m_aSegments[i]->m_xLink->get_label() != sLabel )
 113                 bClear = true;
 114         }
 115
 116         m_aSegments[i]->m_xLink->set_label( sLabel );
 117         m_aUris[m_aSegments[i]->m_xLink.get()] = sRootPath + sPath.copy(0, nEnd);
 118         m_aSegments[i]->m_xLink->hide();
 119         m_aSegments[i]->m_xLink->set_sensitive(true);
 120
 121         m_aSegments[i]->m_xSeparator->hide();
 122
 123         nPos = nEnd;
 124     }
 125
 126     // clear unused fields
 127     for (size_t i = nSegments + 1; i < m_aSegments.size(); i++ )
 128     {
 129         if( bClear )
 130             m_aSegments[i]->m_xLink->set_label( "" );
 131
 132         m_aSegments[i]->m_xLink->hide();
 133         m_aSegments[i]->m_xSeparator->hide();
 134         m_aSegments[i]->m_xLink->set_sensitive(true);
 135     }
 136
 137     // show fields
 138     unsigned int nSeparatorWidth = m_aSegments[0]->m_xSeparator->get_preferred_size().Width();
 139     unsigned int nCurrentWidth = 0;
 140     unsigned int nLastVisible = nSegments;
 141
 142     bool bRight = ( m_eMode == SvtBreadcrumbMode::ALL_VISITED );
 143     bool bLeft = true;
 144
 145     int i = 0;
 146
 147     while( bLeft || bRight )
 148     {
 149         if( nSegments - i == -1 )
 150             bLeft = false;
 151
 152         if( bLeft )
 153         {
 154             unsigned int nIndex = nSegments - i;
 155
 156             if( showField( nIndex, m_nMaxWidth - nCurrentWidth ) )
 157             {
 158                 nCurrentWidth += m_aSegments[nIndex]->m_xLink->get_preferred_size().Width()
 159                                 + nSeparatorWidth + 2*SPACING;
 160             }
 161             else
 162             {
 163                 // label is too long
 164                 if( nSegments != 0 )
 165                 {
 166                     m_aSegments[0]->m_xLink->set_label("...");
 167                     m_aSegments[0]->m_xLink->set_sensitive(false);
 168                 }
 169                 bLeft = false;
 170             }
 171         }
 172
 173         if( nSegments + i == static_cast<int>(m_aSegments.size()) )
 174             bRight = false;
 175
 176         if( i != 0 && bRight )
 177         {
 178             unsigned int nIndex = nSegments + i;
 179
 180             if( m_aSegments[nIndex]->m_xLink->get_label().isEmpty() )
 181             {
 182                 bRight = false;
 183             }
 184             else if( showField( nIndex, m_nMaxWidth - nCurrentWidth ) )
 185             {
 186                 nCurrentWidth += m_aSegments[nIndex]->m_xLink->get_preferred_size().Width()
 187                                 + nSeparatorWidth + 3*SPACING;
 188                 nLastVisible = nIndex;
 189             }
 190             else
 191             {
 192                 bRight = false;
 193             }
 194         }
 195
 196         i++;
 197     }
 198
 199     // current dir should be inactive
 200     m_aSegments[nSegments]->m_xLink->set_sensitive(false);
 201
 202     // hide last separator
 203     m_aSegments[nLastVisible]->m_xSeparator->hide();
 204 }
 205
 206 void Breadcrumb::SetMode( SvtBreadcrumbMode eMode )
 207 {
 208     m_eMode = eMode;
 209 }
 210
 211 void Breadcrumb::appendField()
 212 {
 213     m_aSegments.emplace_back(std::make_unique<BreadcrumbPath>(m_pParent));
 214     size_t nIndex = m_aSegments.size() - 1;
 215     m_aSegments[nIndex]->m_xLink->hide();
 216     m_aSegments[nIndex]->m_xLink->connect_activate_link(LINK(this, Breadcrumb, ClickLinkHdl));
 217     m_aSegments[nIndex]->m_xSeparator->set_label( ">" );
 218     m_aSegments[nIndex]->m_xSeparator->hide();
 219 }
 220
 221 bool Breadcrumb::showField( unsigned int nIndex, unsigned int nWidthMax )
 222 {
 223     m_aSegments[nIndex]->m_xLink->show();
 224     m_aSegments[nIndex]->m_xSeparator->show();
 225
 226     unsigned int nSeparatorWidth = m_aSegments[0]->m_xSeparator->get_preferred_size().Width();
 227     unsigned int nWidth = m_aSegments[nIndex]->m_xLink->get_preferred_size().Width()
 228             + nSeparatorWidth + 3*SPACING;
 229
 230     if( nWidth > nWidthMax )
 231     {
 232         if( nIndex != 0 )
 233         {
 234             m_aSegments[nIndex]->m_xLink->hide();
 235             m_aSegments[nIndex]->m_xSeparator->hide();
 236         }
 237
 238         return false;
 239     }
 240
 241     return true;
 242 }
 243
 244 IMPL_LINK(Breadcrumb, ClickLinkHdl, weld::LinkButton&, rLink, bool)
 245 {
 246     m_sClickedURL = m_aUris[&rLink];
 247     return m_aClickHdl.Call(this);
 248 }
 249
 250 BreadcrumbPath::BreadcrumbPath(weld::Container* pContainer)
 251     : m_xBuilder(Application::CreateBuilder(pContainer, "fps/ui/breadcrumb.ui"))
 252     , m_xContainer(m_xBuilder->weld_container("container"))
 253     , m_xLink(m_xBuilder->weld_link_button("link"))
 254     , m_xSeparator(m_xBuilder->weld_label("label"))
 255 {
 256 }
 257
 258 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */