kicad/common/searchhelpfilefullpath.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
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* Copyright (C) 2014-2015 CERN
* Copyright (C) 2014-2021 KiCad Developers, see AUTHORS.txt for contributors.
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <pgm_base.h>
#include <paths.h>
#include <systemdirsappend.h>
#include <trace_helpers.h>
#include <wx/arrstr.h>
#include <wx/log.h>
wxString SearchHelpFileFullPath( const wxString& aBaseName )
{
SEARCH_STACK basePaths;
wxString helpFile;
// help files are most likely located in the documentation install path
basePaths.Add( PATHS::GetDocumentationPath() );
#ifndef __WIN32__
// just in case, add all known system directories to the search stack
SystemDirsAppend( &basePaths );
#endif
#if defined( DEBUG )
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basePaths.Show( wxString( __func__ ) + wxS( ": basePaths" ) );
#endif
// By default, the documentation from kicad-doc is installed to a folder called "help" with
// subdirectories for all supported languages. Although this can be changed at build-time by
// overwriting ${KICAD_DOC_PATH}, the best guess KiCad can make is that help files are always
// located in a folder named "help". If no translation matching the current locale settings is
// available, the English version will be returned instead.
wxLocale* currentLocale = Pgm().GetLocale();
wxArrayString localeNameDirs;
// canonical form of the current locale (e.g., "fr_FR")
localeNameDirs.Add( currentLocale->GetCanonicalName() );
// short form of the current locale (e.g., "fr")
// wxLocale::GetName() does not always return the short form
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localeNameDirs.Add( currentLocale->GetName().BeforeLast( wxS( '_' ) ) );
// plain English (in case a localised version of the help file cannot be found)
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localeNameDirs.Add( wxS( "en" ) );
for( wxString& locale : localeNameDirs )
{
SEARCH_STACK docPaths;
for( wxString& base : basePaths )
{
wxFileName path( base, wxEmptyString );
// add <base>/help/<locale>/
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path.AppendDir( wxS( "help" ) );
path.AppendDir( locale );
docPaths.AddPaths( path.GetPath() );
// add <base>/doc/help/<locale>/
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path.InsertDir( path.GetDirCount() - 2, wxS( "doc" ) );
docPaths.AddPaths( path.GetPath() );
// add <base>/doc/kicad/help/<locale>/
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path.InsertDir( path.GetDirCount() - 2, wxS( "kicad" ) );
docPaths.AddPaths( path.GetPath() );
}
#if defined( DEBUG )
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docPaths.Show( wxString( __func__ ) + wxS( ": docPaths (" ) + locale + wxS( ")" ) );
#endif
// search HTML first, as it is the preferred format for help files
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wxLogTrace( tracePathsAndFiles, wxS( "Checking SEARCH_STACK for file %s.html" ),
aBaseName );
helpFile = docPaths.FindValidPath( aBaseName + wxS( ".html" ) );
if( !helpFile.IsEmpty() )
{
// prepend URI protocol to open the file in a browser
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helpFile = wxS( "file://" ) + helpFile;
break;
}
// search PDF only when no corresponding HTML file was found
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wxLogTrace( tracePathsAndFiles, wxS( "Checking SEARCH_STACK for file %s.pdf" ), aBaseName );
helpFile = docPaths.FindValidPath( aBaseName + wxS( ".pdf" ) );
if( !helpFile.IsEmpty() )
break;
}
return helpFile;
}