office/okular
office/okular
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Shuffle a bit the way documents are opened:

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- when there are no backends for handling the document mimetype, try harder using the mimetype from the file content only
- when the backend fails loading, try again with the backend that handles the mimetype of the file content
BUG: 166034

svn path=/trunk/KDE/kdegraphics/okular/; revision=881991
This commit is contained in:
Pino Toscano 2008-11-09 14:21:20 +00:00
parent b3cb7ec971
commit 9d8c52b5eb
2 changed files with 108 additions and 62 deletions
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169
core/document.cpp
View File

@ -586,6 +586,86 @@ SaveInterface* DocumentPrivate::generatorSave( GeneratorInfo& info )
return info.save;
}
bool DocumentPrivate::openDocumentInternal( const KService::Ptr& offer, bool isstdin, const QString& docFile, const QByteArray& filedata )
{
QString propName = offer->name();
QHash< QString, GeneratorInfo >::const_iterator genIt = m_loadedGenerators.constFind( propName );
QString catalogName;
if ( genIt != m_loadedGenerators.constEnd() )
{
m_generator = genIt.value().generator;
catalogName = genIt.value().catalogName;
}
else
{
m_generator = loadGeneratorLibrary( offer );
if ( !m_generator )
return false;
genIt = m_loadedGenerators.constFind( propName );
Q_ASSERT( genIt != m_loadedGenerators.constEnd() );
catalogName = genIt.value().catalogName;
}
Q_ASSERT_X( m_generator, "Document::load()", "null generator?!" );
if ( !catalogName.isEmpty() )
KGlobal::locale()->insertCatalog( catalogName );
m_generator->d_func()->m_document = this;
// connect error reporting signals
QObject::connect( m_generator, SIGNAL( error( const QString&, int ) ), m_parent, SIGNAL( error( const QString&, int ) ) );
QObject::connect( m_generator, SIGNAL( warning( const QString&, int ) ), m_parent, SIGNAL( warning( const QString&, int ) ) );
QObject::connect( m_generator, SIGNAL( notice( const QString&, int ) ), m_parent, SIGNAL( notice( const QString&, int ) ) );
QApplication::setOverrideCursor( Qt::WaitCursor );
bool openOk = false;
if ( !isstdin )
{
openOk = m_generator->loadDocument( docFile, m_pagesVector );
}
else if ( !filedata.isEmpty() )
{
if ( m_generator->hasFeature( Generator::ReadRawData ) )
{
openOk = m_generator->loadDocumentFromData( filedata, m_pagesVector );
}
else
{
m_tempFile = new KTemporaryFile();
if ( !m_tempFile->open() )
{
delete m_tempFile;
m_tempFile = 0;
}
else
{
m_tempFile->write( filedata );
QString tmpFileName = m_tempFile->fileName();
m_tempFile->close();
openOk = m_generator->loadDocument( tmpFileName, m_pagesVector );
}
}
}
QApplication::restoreOverrideCursor();
if ( !openOk || m_pagesVector.size() <= 0 )
{
if ( !catalogName.isEmpty() )
KGlobal::locale()->removeCatalog( catalogName );
m_generator->d_func()->m_document = 0;
QObject::disconnect( m_generator, 0, m_parent, 0 );
m_generator = 0;
qDeleteAll( m_pagesVector );
m_pagesVector.clear();
delete m_tempFile;
m_tempFile = 0;
}
return openOk;
}
void DocumentPrivate::saveDocumentInfo() const
{
if ( m_xmlFileName.isEmpty() )
@ -1360,6 +1440,7 @@ bool Document::openDocument( const QString & docFile, const KUrl& url, const KMi
QByteArray filedata;
qint64 document_size = -1;
bool isstdin = url.fileName( KUrl::ObeyTrailingSlash ) == QLatin1String( "-" );
bool loadingMimeByContent = false;
if ( !isstdin )
{
if ( mime.count() <= 0 )
@ -1406,12 +1487,23 @@ bool Document::openDocument( const QString & docFile, const KUrl& url, const KMi
if ( !mime || mime->name() == QLatin1String( "application/octet-stream" ) )
return false;
document_size = filedata.size();
loadingMimeByContent = true;
}
// 0. load Generator
// request only valid non-disabled plugins suitable for the mimetype
QString constraint("([X-KDE-Priority] > 0) and (exist Library)") ;
KService::List offers = KMimeTypeTrader::self()->query(mime->name(),"okular/Generator",constraint);
if ( offers.isEmpty() && !isstdin )
{
KMimeType::Ptr newmime = KMimeType::findByFileContent( docFile );
loadingMimeByContent = true;
if ( newmime != mime )
{
mime = newmime;
offers = KMimeTypeTrader::self()->query( mime->name(), "okular/Generator", constraint );
}
}
if (offers.isEmpty())
{
emit error( i18n( "Can not find a plugin which is able to handle the document being passed." ), -1 );
@ -1443,77 +1535,30 @@ bool Document::openDocument( const QString & docFile, const KUrl& url, const KMi
}
}
QString propName = offers.at(hRank)->name();
QHash< QString, GeneratorInfo >::const_iterator genIt = d->m_loadedGenerators.constFind( propName );
QString catalogName;
if ( genIt != d->m_loadedGenerators.constEnd() )
KService::Ptr offer = offers.at( hRank );
// 1. load Document
bool openOk = d->openDocumentInternal( offer, isstdin, docFile, filedata );
if ( !openOk && !loadingMimeByContent )
{
d->m_generator = genIt.value().generator;
catalogName = genIt.value().catalogName;
}
else
{
d->m_generator = d->loadGeneratorLibrary( offers.at(hRank) );
if ( !d->m_generator )
return false;
genIt = d->m_loadedGenerators.constFind( propName );
Q_ASSERT( genIt != d->m_loadedGenerators.constEnd() );
catalogName = genIt.value().catalogName;
}
Q_ASSERT_X( d->m_generator, "Document::load()", "null generator?!" );
if ( !catalogName.isEmpty() )
KGlobal::locale()->insertCatalog( catalogName );
d->m_generator->d_func()->m_document = d;
// connect error reporting signals
connect( d->m_generator, SIGNAL( error( const QString&, int ) ), this, SIGNAL( error( const QString&, int ) ) );
connect( d->m_generator, SIGNAL( warning( const QString&, int ) ), this, SIGNAL( warning( const QString&, int ) ) );
connect( d->m_generator, SIGNAL( notice( const QString&, int ) ), this, SIGNAL( notice( const QString&, int ) ) );
// 1. load Document (and set busy cursor while loading)
QApplication::setOverrideCursor( Qt::WaitCursor );
bool openOk = false;
if ( !isstdin )
{
openOk = d->m_generator->loadDocument( docFile, d->m_pagesVector );
}
else if ( !filedata.isEmpty() )
{
if ( d->m_generator->hasFeature( Generator::ReadRawData ) )
KMimeType::Ptr newmime = KMimeType::findByFileContent( docFile );
loadingMimeByContent = true;
if ( newmime != mime )
{
openOk = d->m_generator->loadDocumentFromData( filedata, d->m_pagesVector );
}
else
{
d->m_tempFile = new KTemporaryFile();
if ( !d->m_tempFile->open() )
mime = newmime;
offers = KMimeTypeTrader::self()->query( mime->name(), "okular/Generator", constraint );
if ( !offers.isEmpty() )
{
delete d->m_tempFile;
d->m_tempFile = 0;
}
else
{
d->m_tempFile->write( filedata );
QString tmpFileName = d->m_tempFile->fileName();
d->m_tempFile->close();
openOk = d->m_generator->loadDocument( tmpFileName, d->m_pagesVector );
offer = offers.first();
openOk = d->openDocumentInternal( offer, isstdin, docFile, filedata );
}
}
}
QApplication::restoreOverrideCursor();
if ( !openOk || d->m_pagesVector.size() <= 0 )
if ( !openOk )
{
if ( !catalogName.isEmpty() )
KGlobal::locale()->removeCatalog( catalogName );
d->m_generator = 0;
return openOk;
return false;
}
d->m_generatorName = propName;
d->m_generatorName = offer->name();
// 2. load Additional Data (our bookmarks and metadata) about the document
d->loadDocumentInfo();

1
core/document_p.h
View File

@ -107,6 +107,7 @@ class DocumentPrivate
void setRotationInternal( int r, bool notify );
ConfigInterface* generatorConfig( GeneratorInfo& info );
SaveInterface* generatorSave( GeneratorInfo& info );
bool openDocumentInternal( const KService::Ptr& offer, bool isstdin, const QString& docFile, const QByteArray& filedata );
// private slots
void saveDocumentInfo() const;