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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <tools/urlobj.hxx>
#include <vcl/svapp.hxx>
#include "breadcrumb.hxx"
Breadcrumb::Breadcrumb(weld::Container* pParent)
: m_pParent(pParent)
, m_nMaxWidth(m_pParent->get_preferred_size().Width())
{
m_pParent->connect_size_allocate(LINK(this, Breadcrumb, SizeAllocHdl));
m_eMode = SvtBreadcrumbMode::ONLY_CURRENT_PATH;
appendField(); // root
}
IMPL_LINK(Breadcrumb, SizeAllocHdl, const Size&, rSize, void)
{
m_nMaxWidth = rSize.Width();
}
Breadcrumb::~Breadcrumb()
{
m_pParent->connect_size_allocate(Link<const Size&, void>());
}
void Breadcrumb::EnableFields( bool bEnable )
{
if( bEnable )
{
INetURLObject aURL( m_aCurrentURL );
int nSegments = aURL.getSegmentCount();
m_aSegments[nSegments]->m_xLink->set_sensitive(false);
}
}
void Breadcrumb::connect_clicked( const Link<Breadcrumb*,bool>& rLink )
{
m_aClickHdl = rLink;
}
const OUString& Breadcrumb::GetHdlURL() const
{
return m_sClickedURL;
}
void Breadcrumb::SetRootName( const OUString& rURL )
{
m_sRootName = rURL;
// we changed root - clear all fields
for (size_t i = 1; i < m_aSegments.size(); ++i)
{
m_aSegments[i]->m_xLink->set_label("");
m_aSegments[i]->m_xLink->hide();
m_aSegments[i]->m_xSeparator->hide();
m_aSegments[i]->m_xLink->set_sensitive(true);
}
}
void Breadcrumb::SetURL( const OUString& rURL )
{
m_aCurrentURL = rURL;
INetURLObject aURL(rURL);
aURL.setFinalSlash();
bool bClear = m_eMode == SvtBreadcrumbMode::ONLY_CURRENT_PATH;
int nSegments = aURL.getSegmentCount();
size_t nVecSizeRequired = nSegments + 1;
while (m_aSegments.size() < nVecSizeRequired)
appendField();
// fill the fields under root
for (int i = nSegments; i; --i)
{
OUString sLabel = aURL.getName(INetURLObject::LAST_SEGMENT, true, INetURLObject::DecodeMechanism::WithCharset);
OUString sLink = aURL.GetMainURL(INetURLObject::DecodeMechanism::NONE);
if (m_eMode == SvtBreadcrumbMode::ALL_VISITED)
{
if( m_aSegments[i]->m_xLink->get_label() != sLabel )
bClear = true;
}
m_aSegments[i]->m_xLink->hide();
m_aSegments[i]->m_xLink->set_label(sLabel);
m_aSegments[i]->m_xLink->set_sensitive(true);
m_aSegments[i]->m_xLink->set_uri(sLink);
m_aUris[m_aSegments[i]->m_xLink.get()] = sLink;
m_aSegments[i]->m_xSeparator->hide();
aURL.removeSegment();
}
OUString sRootPath = aURL.GetMainURL(INetURLObject::DecodeMechanism::WithCharset);
// root field
m_aSegments[0]->m_xLink->set_label( m_sRootName );
m_aSegments[0]->m_xLink->set_sensitive(true);
m_aSegments[0]->m_xLink->set_uri(sRootPath);
m_aUris[m_aSegments[0]->m_xLink.get()] = sRootPath;
// clear unused fields
for (size_t i = nSegments + 1; i < m_aSegments.size(); i++ )
{
if( bClear )
m_aSegments[i]->m_xLink->set_label( "" );
m_aSegments[i]->m_xLink->hide();
m_aSegments[i]->m_xSeparator->hide();
m_aSegments[i]->m_xLink->set_sensitive(true);
}
// show fields
unsigned int nSeparatorWidth = m_aSegments[0]->m_xSeparator->get_preferred_size().Width();
unsigned int nCurrentWidth = 0;
unsigned int nLastVisible = nSegments;
bool bRight = ( m_eMode == SvtBreadcrumbMode::ALL_VISITED );
bool bLeft = true;
int i = 0;
while( bLeft || bRight )
{
if( nSegments - i == -1 )
bLeft = false;
if( bLeft )
{
unsigned int nIndex = nSegments - i;
if( showField( nIndex, m_nMaxWidth - nCurrentWidth ) )
{
nCurrentWidth += m_aSegments[nIndex]->m_xLink->get_preferred_size().Width()
+ nSeparatorWidth + 2*SPACING;
}
else
{
// label is too long
if( nSegments != 0 )
{
m_aSegments[0]->m_xLink->set_label("...");
m_aSegments[0]->m_xLink->set_sensitive(false);
}
bLeft = false;
}
}
if( nSegments + i == static_cast<int>(m_aSegments.size()) )
bRight = false;
if( i != 0 && bRight )
{
unsigned int nIndex = nSegments + i;
if( m_aSegments[nIndex]->m_xLink->get_label().isEmpty() )
{
bRight = false;
}
else if( showField( nIndex, m_nMaxWidth - nCurrentWidth ) )
{
nCurrentWidth += m_aSegments[nIndex]->m_xLink->get_preferred_size().Width()
+ nSeparatorWidth + 3*SPACING;
nLastVisible = nIndex;
}
else
{
bRight = false;
}
}
i++;
}
// current dir should be inactive
m_aSegments[nSegments]->m_xLink->set_sensitive(false);
// hide last separator
m_aSegments[nLastVisible]->m_xSeparator->hide();
}
void Breadcrumb::SetMode( SvtBreadcrumbMode eMode )
{
m_eMode = eMode;
}
void Breadcrumb::appendField()
{
m_aSegments.emplace_back(std::make_unique<BreadcrumbPath>(m_pParent));
size_t nIndex = m_aSegments.size() - 1;
m_aSegments[nIndex]->m_xLink->hide();
m_aSegments[nIndex]->m_xLink->connect_activate_link(LINK(this, Breadcrumb, ClickLinkHdl));
m_aSegments[nIndex]->m_xSeparator->set_label( ">" );
m_aSegments[nIndex]->m_xSeparator->hide();
}
bool Breadcrumb::showField( unsigned int nIndex, unsigned int nWidthMax )
{
m_aSegments[nIndex]->m_xLink->show();
m_aSegments[nIndex]->m_xSeparator->show();
unsigned int nSeparatorWidth = m_aSegments[0]->m_xSeparator->get_preferred_size().Width();
unsigned int nWidth = m_aSegments[nIndex]->m_xLink->get_preferred_size().Width()
+ nSeparatorWidth + 3*SPACING;
if( nWidth > nWidthMax )
{
if( nIndex != 0 )
{
m_aSegments[nIndex]->m_xLink->hide();
m_aSegments[nIndex]->m_xSeparator->hide();
}
return false;
}
return true;
}
IMPL_LINK(Breadcrumb, ClickLinkHdl, weld::LinkButton&, rLink, bool)
{
m_sClickedURL = m_aUris[&rLink];
return m_aClickHdl.Call(this);
}
BreadcrumbPath::BreadcrumbPath(weld::Container* pContainer)
: m_xBuilder(Application::CreateBuilder(pContainer, "fps/ui/breadcrumb.ui"))
, m_xContainer(m_xBuilder->weld_container("container"))
, m_xLink(m_xBuilder->weld_link_button("link"))
, m_xSeparator(m_xBuilder->weld_label("label"))
{
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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