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tdebase/khelpcenter/navigator.cpp

679 lines
19 KiB

/*
* This file is part of the TDE Help Center
*
* Copyright (C) 1999 Matthias Elter (me@kde.org)
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <tqdir.h>
#include <tqfile.h>
#include <tqpixmap.h>
#include <tqstring.h>
#include <tqlabel.h>
#include <tqheader.h>
#include <tqdom.h>
#include <tqtextstream.h>
#include <tqregexp.h>
#include <tqlayout.h>
#include <tqlineedit.h>
#include <tqpushbutton.h>
#include <tqtooltip.h>
#include <kaction.h>
#include <kapplication.h>
#include <ksimpleconfig.h>
#include <kstandarddirs.h>
#include <kglobal.h>
#include <klocale.h>
#include <kdebug.h>
#include <klistview.h>
#include <kmessagebox.h>
#include <kiconloader.h>
#include <kprocio.h>
#include <kcharsets.h>
#include <kdialog.h>
#include <kdesktopfile.h>
#include <kprotocolinfo.h>
#include <kservicegroup.h>
#include "navigatoritem.h"
#include "navigatorappitem.h"
#include "searchwidget.h"
#include "searchengine.h"
#include "docmetainfo.h"
#include "docentrytraverser.h"
#include "glossary.h"
#include "toc.h"
#include "view.h"
#include "infotree.h"
#include "mainwindow.h"
#include "plugintraverser.h"
#include "scrollkeepertreebuilder.h"
#include "kcmhelpcenter.h"
#include "formatter.h"
#include "history.h"
#include "prefs.h"
#include "navigator.h"
using namespace KHC;
Navigator::Navigator( View *view, TQWidget *parent, const char *name )
: TQWidget( parent, name ), mIndexDialog( 0 ),
mView( view ), mSelected( false )
{
TDEConfig *config = kapp->config();
config->setGroup("General");
mShowMissingDocs = config->readBoolEntry("ShowMissingDocs",false);
mSearchEngine = new SearchEngine( view );
connect( mSearchEngine, TQT_SIGNAL( searchFinished() ),
TQT_SLOT( slotSearchFinished() ) );
DocMetaInfo::self()->scanMetaInfo();
TQBoxLayout *topLayout = new TQVBoxLayout( this );
mSearchFrame = new TQFrame( this );
topLayout->addWidget( mSearchFrame );
TQBoxLayout *searchLayout = new TQHBoxLayout( mSearchFrame );
searchLayout->setSpacing( KDialog::spacingHint() );
searchLayout->setMargin( 6 );
TQPushButton *clearButton = new TQPushButton( mSearchFrame );
clearButton->setIconSet( TDEApplication::reverseLayout() ?
SmallIconSet( "clear_left" ) : SmallIconSet("locationbar_erase") );
searchLayout->addWidget( clearButton );
connect( clearButton, TQT_SIGNAL( clicked() ), TQT_SLOT( clearSearch() ) );
TQToolTip::add( clearButton, i18n("Clear search") );
mSearchEdit = new TQLineEdit( mSearchFrame );
searchLayout->addWidget( mSearchEdit );
connect( mSearchEdit, TQT_SIGNAL( returnPressed() ), TQT_SLOT( slotSearch() ) );
connect( mSearchEdit, TQT_SIGNAL( textChanged( const TQString & ) ),
TQT_SLOT( checkSearchButton() ) );
mSearchButton = new TQPushButton( i18n("&Search"), mSearchFrame );
searchLayout->addWidget( mSearchButton );
connect( mSearchButton, TQT_SIGNAL( clicked() ), TQT_SLOT( slotSearch() ) );
clearButton->setFixedHeight( mSearchButton->height() );
mTabWidget = new TQTabWidget( this );
topLayout->addWidget( mTabWidget );
setupContentsTab();
setupGlossaryTab();
setupSearchTab();
insertPlugins();
if ( !mSearchEngine->initSearchHandlers() ) {
hideSearch();
} else {
mSearchWidget->updateScopeList();
mSearchWidget->readConfig( TDEGlobal::config() );
}
connect( mTabWidget, TQT_SIGNAL( currentChanged( QWidget * ) ),
TQT_SLOT( slotTabChanged( QWidget * ) ) );
}
Navigator::~Navigator()
{
delete mSearchEngine;
}
SearchEngine *Navigator::searchEngine() const
{
return mSearchEngine;
}
Formatter *Navigator::formatter() const
{
return mView->formatter();
}
bool Navigator::showMissingDocs() const
{
return mShowMissingDocs;
}
void Navigator::setupContentsTab()
{
mContentsTree = new TDEListView( mTabWidget );
mContentsTree->setFrameStyle(TQFrame::Panel | TQFrame::Sunken);
mContentsTree->addColumn(TQString::null);
mContentsTree->setAllColumnsShowFocus(true);
mContentsTree->header()->hide();
mContentsTree->setRootIsDecorated(false);
mContentsTree->setSorting(-1, false);
connect(mContentsTree, TQT_SIGNAL(clicked(TQListViewItem*)),
TQT_SLOT(slotItemSelected(TQListViewItem*)));
connect(mContentsTree, TQT_SIGNAL(returnPressed(TQListViewItem*)),
TQT_SLOT(slotItemSelected(TQListViewItem*)));
mTabWidget->addTab(mContentsTree, i18n("&Contents"));
}
void Navigator::setupSearchTab()
{
mSearchWidget = new SearchWidget( mSearchEngine, mTabWidget );
connect( mSearchWidget, TQT_SIGNAL( searchResult( const TQString & ) ),
TQT_SLOT( slotShowSearchResult( const TQString & ) ) );
connect( mSearchWidget, TQT_SIGNAL( scopeCountChanged( int ) ),
TQT_SLOT( checkSearchButton() ) );
connect( mSearchWidget, TQT_SIGNAL( showIndexDialog() ),
TQT_SLOT( showIndexDialog() ) );
mTabWidget->addTab( mSearchWidget, i18n("Search Options"));
}
void Navigator::setupGlossaryTab()
{
mGlossaryTree = new Glossary( mTabWidget );
connect( mGlossaryTree, TQT_SIGNAL( entrySelected( const GlossaryEntry & ) ),
this, TQT_SIGNAL( glossSelected( const GlossaryEntry & ) ) );
mTabWidget->addTab( mGlossaryTree, i18n( "G&lossary" ) );
}
void Navigator::insertPlugins()
{
PluginTraverser t( this, mContentsTree );
DocMetaInfo::self()->traverseEntries( &t );
#if 0
kdDebug( 1400 ) << "<docmetainfo>" << endl;
DocEntry::List entries = DocMetaInfo::self()->docEntries();
DocEntry::List::ConstIterator it;
for( it = entries.begin(); it != entries.end(); ++it ) {
(*it)->dump();
}
kdDebug( 1400 ) << "</docmetainfo>" << endl;
#endif
}
void Navigator::insertParentAppDocs( const TQString &name, NavigatorItem *topItem )
{
kdDebug(1400) << "Requested plugin documents for ID " << name << endl;
KServiceGroup::Ptr grp = KServiceGroup::childGroup( name );
if ( !grp )
return;
KServiceGroup::List entries = grp->entries();
KServiceGroup::List::ConstIterator it = entries.begin();
KServiceGroup::List::ConstIterator end = entries.end();
for ( ; it != end; ++it ) {
TQString desktopFile = ( *it )->entryPath();
if ( TQDir::isRelativePath( desktopFile ) )
desktopFile = locate( "apps", desktopFile );
createItemFromDesktopFile( topItem, desktopFile );
}
}
void Navigator::insertIOSlaveDocs( const TQString &name, NavigatorItem *topItem )
{
kdDebug(1400) << "Requested IOSlave documents for ID " << name << endl;
#if KDE_IS_VERSION( 3, 1, 90 )
TQStringList list = KProtocolInfo::protocols();
list.sort();
NavigatorItem *prevItem = 0;
for ( TQStringList::ConstIterator it = list.begin(); it != list.end(); ++it )
{
TQString docPath = KProtocolInfo::docPath(*it);
if ( !docPath.isNull() )
{
// First parameter is ignored if second is an absolute path
KURL url(KURL("help:/"), docPath);
TQString icon = KProtocolInfo::icon(*it);
if ( icon.isEmpty() ) icon = "document2";
DocEntry *entry = new DocEntry( *it, url.url(), icon );
NavigatorItem *item = new NavigatorItem( entry, topItem, prevItem );
prevItem = item;
item->setAutoDeleteDocEntry( true );
}
}
#else
Q_UNUSED( topItem );
#endif
}
void Navigator::insertAppletDocs( NavigatorItem *topItem )
{
TQDir appletDir( locate( "data", TQString::fromLatin1( "kicker/applets/" ) ) );
appletDir.setNameFilter( TQString::fromLatin1( "*.desktop" ) );
TQStringList files = appletDir.entryList( TQDir::Files | TQDir::Readable );
TQStringList::ConstIterator it = files.begin();
TQStringList::ConstIterator end = files.end();
for ( ; it != end; ++it )
createItemFromDesktopFile( topItem, appletDir.absPath() + "/" + *it );
}
void Navigator::createItemFromDesktopFile( NavigatorItem *topItem,
const TQString &file )
{
KDesktopFile desktopFile( file );
TQString docPath = desktopFile.readDocPath();
if ( !docPath.isNull() ) {
// First parameter is ignored if second is an absolute path
KURL url(KURL("help:/"), docPath);
TQString icon = desktopFile.readIcon();
if ( icon.isEmpty() ) icon = "document2";
DocEntry *entry = new DocEntry( desktopFile.readName(), url.url(), icon );
NavigatorItem *item = new NavigatorItem( entry, topItem );
item->setAutoDeleteDocEntry( true );
}
}
void Navigator::insertInfoDocs( NavigatorItem *topItem )
{
InfoTree *infoTree = new InfoTree( TQT_TQOBJECT(this) );
infoTree->build( topItem );
}
NavigatorItem *Navigator::insertScrollKeeperDocs( NavigatorItem *topItem,
NavigatorItem *after )
{
ScrollKeeperTreeBuilder *builder = new ScrollKeeperTreeBuilder( TQT_TQOBJECT(this) );
return builder->build( topItem, after );
}
void Navigator::selectItem( const KURL &url )
{
kdDebug() << "Navigator::selectItem(): " << url.url() << endl;
if ( url.url() == "khelpcenter:home" ) {
clearSelection();
return;
}
// help:/foo&anchor=bar gets redirected to help:/foo#bar
// Make sure that we match both the original URL as well as
// its counterpart.
KURL alternativeURL = url;
if (url.hasRef())
{
alternativeURL.setQuery("anchor="+url.ref());
alternativeURL.setRef(TQString::null);
}
// If the navigator already has the given URL selected, do nothing.
NavigatorItem *item;
item = static_cast<NavigatorItem *>( mContentsTree->selectedItem() );
if ( item && mSelected ) {
KURL currentURL ( item->entry()->url() );
if ( (currentURL == url) || (currentURL == alternativeURL) ) {
kdDebug() << "URL already shown." << endl;
return;
}
}
// First, populate the NavigatorAppItems if we don't want the home page
if ( url != homeURL() ) {
for ( TQListViewItem *item = mContentsTree->firstChild(); item;
item = item->nextSibling() ) {
NavigatorAppItem *appItem = dynamic_cast<NavigatorAppItem *>( item );
if ( appItem ) appItem->populate( true /* recursive */ );
for ( TQListViewItem *subitem = item->firstChild(); subitem;
subitem = subitem->nextSibling() ) {
appItem = dynamic_cast<NavigatorAppItem *>( subitem );
if ( appItem ) appItem->populate( true /* recursive */ );
}
}
}
TQListViewItemIterator it( mContentsTree );
while ( it.current() ) {
NavigatorItem *item = static_cast<NavigatorItem *>( it.current() );
KURL itemUrl( item->entry()->url() );
if ( (itemUrl == url) || (itemUrl == alternativeURL) ) {
mContentsTree->setCurrentItem( item );
// If the current item was not selected and remained unchanged it
// needs to be explicitly selected
mContentsTree->setSelected(item, true);
item->setOpen( true );
mContentsTree->ensureItemVisible( item );
break;
}
++it;
}
if ( !it.current() ) {
clearSelection();
} else {
mSelected = true;
}
}
void Navigator::clearSelection()
{
mContentsTree->clearSelection();
mSelected = false;
}
void Navigator::slotItemSelected( TQListViewItem *currentItem )
{
if ( !currentItem ) return;
mSelected = true;
NavigatorItem *item = static_cast<NavigatorItem *>( currentItem );
kdDebug(1400) << "Navigator::slotItemSelected(): " << item->entry()->name()
<< endl;
if ( item->childCount() > 0 || item->isExpandable() )
item->setOpen( !item->isOpen() );
KURL url ( item->entry()->url() );
if ( url.protocol() == "khelpcenter" ) {
mView->closeURL();
History::self().updateCurrentEntry( mView );
History::self().createEntry();
showOverview( item, url );
} else {
if ( url.protocol() == "help" ) {
kdDebug( 1400 ) << "slotItemSelected(): Got help URL " << url.url()
<< endl;
if ( !item->toc() ) {
TOC *tocTree = item->createTOC();
kdDebug( 1400 ) << "slotItemSelected(): Trying to build TOC for "
<< item->entry()->name() << endl;
tocTree->setApplication( url.directory() );
TQString doc = View::langLookup( url.path() );
// Enforce the original .docbook version, in case langLookup returns a
// cached version
if ( !doc.isNull() ) {
int pos = doc.find( ".html" );
if ( pos >= 0 ) {
doc.replace( pos, 5, ".docbook" );
}
kdDebug( 1400 ) << "slotItemSelected(): doc = " << doc << endl;
tocTree->build( doc );
}
}
}
emit itemSelected( url.url() );
}
mLastUrl = url;
}
void Navigator::openInternalUrl( const KURL &url )
{
if ( url.url() == "khelpcenter:home" ) {
clearSelection();
showOverview( 0, url );
return;
}
selectItem( url );
if ( !mSelected ) return;
NavigatorItem *item =
static_cast<NavigatorItem *>( mContentsTree->currentItem() );
if ( item ) showOverview( item, url );
}
void Navigator::showOverview( NavigatorItem *item, const KURL &url )
{
mView->beginInternal( url );
TQString fileName = locate( "data", "khelpcenter/index.html.in" );
if ( fileName.isEmpty() )
return;
TQFile file( fileName );
if ( !file.open( IO_ReadOnly ) )
return;
TQTextStream stream( &file );
TQString res = stream.read();
TQString title,name,content;
uint childCount;
if ( item ) {
title = item->entry()->name();
name = item->entry()->name();
TQString info = item->entry()->info();
if ( !info.isEmpty() ) content = "<p>" + info + "</p>\n";
childCount = item->childCount();
} else {
title = i18n("Start Page");
name = i18n("The Trinity Help Center");
childCount = mContentsTree->childCount();
}
if ( childCount > 0 ) {
TQListViewItem *child;
if ( item ) child = item->firstChild();
else child = mContentsTree->firstChild();
mDirLevel = 0;
content += createChildrenList( child );
}
else
content += "<p></p>";
res = res.arg(title).arg(name).arg(content);
mView->write( res );
mView->end();
}
TQString Navigator::createChildrenList( TQListViewItem *child )
{
++mDirLevel;
TQString t;
t += "<ul>\n";
while ( child ) {
NavigatorItem *childItem = static_cast<NavigatorItem *>( child );
DocEntry *e = childItem->entry();
t += "<li><a href=\"" + e->url() + "\">";
if ( e->isDirectory() ) t += "<b>";
t += e->name();
if ( e->isDirectory() ) t += "</b>";
t += "</a>";
if ( !e->info().isEmpty() ) {
t += "<br>" + e->info();
}
t += "</li>\n";
if ( childItem->childCount() > 0 && mDirLevel < 2 ) {
t += createChildrenList( childItem->firstChild() );
}
child = child->nextSibling();
}
t += "</ul>\n";
--mDirLevel;
return t;
}
void Navigator::slotSearch()
{
kdDebug(1400) << "Navigator::slotSearch()" << endl;
if ( !checkSearchIndex() ) return;
if ( mSearchEngine->isRunning() ) return;
TQString words = mSearchEdit->text();
TQString method = mSearchWidget->method();
int pages = mSearchWidget->pages();
TQString scope = mSearchWidget->scope();
kdDebug(1400) << "Navigator::slotSearch() words: " << words << endl;
kdDebug(1400) << "Navigator::slotSearch() scope: " << scope << endl;
if ( words.isEmpty() || scope.isEmpty() ) return;
// disable search Button during searches
mSearchButton->setEnabled(false);
TQApplication::setOverrideCursor(tqwaitCursor);
if ( !mSearchEngine->search( words, method, pages, scope ) ) {
slotSearchFinished();
KMessageBox::sorry( this, i18n("Unable to run search program.") );
}
}
void Navigator::slotShowSearchResult( const TQString &url )
{
TQString u = url;
u.replace( "%k", mSearchEdit->text() );
emit itemSelected( u );
}
void Navigator::slotSearchFinished()
{
mSearchButton->setEnabled(true);
TQApplication::restoreOverrideCursor();
kdDebug( 1400 ) << "Search finished." << endl;
}
void Navigator::checkSearchButton()
{
mSearchButton->setEnabled( !mSearchEdit->text().isEmpty() &&
mSearchWidget->scopeCount() > 0 );
mTabWidget->showPage( mSearchWidget );
}
void Navigator::hideSearch()
{
mSearchFrame->hide();
mTabWidget->removePage( mSearchWidget );
}
bool Navigator::checkSearchIndex()
{
TDEConfig *cfg = TDEGlobal::config();
cfg->setGroup( "Search" );
if ( cfg->readBoolEntry( "IndexExists", false ) ) return true;
if ( mIndexDialog && mIndexDialog->isShown() ) return true;
TQString text = i18n( "A search index does not yet exist. Do you want "
"to create the index now?" );
int result = KMessageBox::questionYesNo( this, text, TQString::null,
i18n("Create"),
i18n("Do Not Create"),
"indexcreation" );
if ( result == KMessageBox::Yes ) {
showIndexDialog();
return false;
}
return true;
}
void Navigator::slotTabChanged( TQWidget *wid )
{
if ( wid == mSearchWidget ) checkSearchIndex();
}
void Navigator::slotSelectGlossEntry( const TQString &id )
{
mGlossaryTree->slotSelectGlossEntry( id );
}
KURL Navigator::homeURL()
{
if ( !mHomeUrl.isEmpty() ) return mHomeUrl;
TDEConfig *cfg = TDEGlobal::config();
// We have to reparse the configuration here in order to get a
// language-specific StartUrl, e.g. "StartUrl[de]".
cfg->reparseConfiguration();
cfg->setGroup( "General" );
mHomeUrl = cfg->readPathEntry( "StartUrl", "khelpcenter:home" );
return mHomeUrl;
}
void Navigator::showIndexDialog()
{
if ( !mIndexDialog ) {
mIndexDialog = new KCMHelpCenter( mSearchEngine, this );
connect( mIndexDialog, TQT_SIGNAL( searchIndexUpdated() ), mSearchWidget,
TQT_SLOT( updateScopeList() ) );
}
mIndexDialog->show();
mIndexDialog->raise();
}
void Navigator::readConfig()
{
if ( Prefs::currentTab() == Prefs::Search ) {
mTabWidget->showPage( mSearchWidget );
} else if ( Prefs::currentTab() == Prefs::Glossary ) {
mTabWidget->showPage( mGlossaryTree );
} else {
mTabWidget->showPage( mContentsTree );
}
}
void Navigator::writeConfig()
{
if ( mTabWidget->currentPage() == mSearchWidget ) {
Prefs::setCurrentTab( Prefs::Search );
} else if ( mTabWidget->currentPage() == mGlossaryTree ) {
Prefs::setCurrentTab( Prefs::Glossary );
} else {
Prefs::setCurrentTab( Prefs::Content );
}
}
void Navigator::clearSearch()
{
mSearchEdit->setText( TQString::null );
}
#include "navigator.moc"
// vim:ts=2:sw=2:et