kio Library API Documentation

passdlg.cpp

00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2000 David Faure <faure@kde.org>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License version 2 as published by the Free Software Foundation.
00007 
00008    This library is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011    Library General Public License for more details.
00012 
00013    You should have received a copy of the GNU Library General Public License
00014    along with this library; see the file COPYING.LIB.  If not, write to
00015    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00016    Boston, MA 02111-1307, USA.
00017 */
00018 
00019 #include <qpushbutton.h>
00020 #include <qcheckbox.h>
00021 #include <qlabel.h>
00022 #include <qlayout.h>
00023 #include <qaccel.h>
00024 #include <qhbox.h>
00025 #include <qsimplerichtext.h>
00026 #include <qstylesheet.h>
00027 
00028 #include <kapplication.h>
00029 #include <klineedit.h>
00030 #include <kconfig.h>
00031 #include <kiconloader.h>
00032 #include <klocale.h>
00033 #include <kbuttonbox.h>
00034 #include <kstandarddirs.h>
00035 #include <kseparator.h>
00036 
00037 #include "passdlg.h"
00038 #include <kcombobox.h>
00039 
00040 using namespace KIO;
00041 
00042 struct PasswordDialog::PasswordDialogPrivate
00043 {
00044     QGridLayout *layout;
00045     QLineEdit* userEdit;
00046     KLineEdit* passEdit;
00047     QLabel* userNameLabel;
00048     QLabel* prompt;
00049     QCheckBox* keepCheckBox;
00050     QMap<QString,QString> knownLogins;
00051     KComboBox* userEditCombo;
00052     QHBox* userNameHBox;
00053 
00054     bool keep;
00055     short unsigned int nRow;
00056 };
00057 
00058 PasswordDialog::PasswordDialog( const QString& prompt, const QString& user,
00059                                 bool enableKeep, bool modal, QWidget* parent,
00060                                 const char* name )
00061                :KDialogBase( parent, name, modal, i18n("Password"), Ok|Cancel, Ok, true)
00062 {
00063     init ( prompt, user, enableKeep );
00064 }
00065 
00066 PasswordDialog::~PasswordDialog()
00067 {
00068     delete d;
00069 }
00070 
00071 void PasswordDialog::init( const QString& prompt, const QString& user,
00072                            bool enableKeep  )
00073 {
00074     QWidget *main = makeMainWidget();
00075 
00076     d = new PasswordDialogPrivate;
00077     d->keep = false;
00078     d->nRow = 0;
00079     d->keepCheckBox = 0;
00080 
00081     KConfig* cfg = KGlobal::config();
00082     KConfigGroupSaver saver( cfg, "Passwords" );
00083 
00084     d->layout = new QGridLayout( main, 9, 3, spacingHint(), marginHint());
00085     d->layout->addColSpacing(1, 5);
00086 
00087     // Row 0: pixmap  prompt
00088     QLabel* lbl;
00089     QPixmap pix( KGlobal::iconLoader()->loadIcon( "password", KIcon::NoGroup, KIcon::SizeHuge, 0, 0, true));
00090     if ( !pix.isNull() )
00091     {
00092         lbl = new QLabel( main );
00093         lbl->setPixmap( pix );
00094         lbl->setAlignment( Qt::AlignLeft|Qt::AlignVCenter );
00095         lbl->setFixedSize( lbl->sizeHint() );
00096         d->layout->addWidget( lbl, 0, 0, Qt::AlignLeft );
00097     }
00098     d->prompt = new QLabel( main );
00099     d->prompt->setAlignment( Qt::AlignLeft|Qt::AlignVCenter|Qt::WordBreak );
00100     d->layout->addWidget( d->prompt, 0, 2, Qt::AlignLeft );
00101     if ( prompt.isEmpty() )
00102         setPrompt( i18n( "You need to supply a username and a password" ) );
00103     else
00104         setPrompt( prompt );
00105 
00106     // Row 1: Row Spacer
00107     d->layout->addRowSpacing( 1, 7 );
00108 
00109     // Row 2-3: Reserved for an additional comment
00110 
00111     // Row 4: Username field
00112     d->userNameLabel = new QLabel( i18n("&Username:"), main );
00113     d->userNameLabel->setAlignment( Qt::AlignVCenter | Qt::AlignLeft );
00114     d->userNameLabel->setFixedSize( d->userNameLabel->sizeHint() );
00115     d->userNameHBox = new QHBox( main );
00116 
00117     d->userEdit = new KLineEdit( d->userNameHBox );
00118     QSize s = d->userEdit->sizeHint();
00119     d->userEdit->setFixedHeight( s.height() );
00120     d->userEdit->setMinimumWidth( s.width() );
00121     d->userNameLabel->setBuddy( d->userEdit );
00122     d->layout->addWidget( d->userNameLabel, 4, 0 );
00123     d->layout->addWidget( d->userNameHBox, 4, 2 );
00124 
00125     // Row 5: Row spacer
00126     d->layout->addRowSpacing( 5, 4 );
00127 
00128     // Row 6: Password field
00129     lbl = new QLabel( i18n("&Password:"), main );
00130     lbl->setAlignment( Qt::AlignVCenter | Qt::AlignLeft );
00131     lbl->setFixedSize( lbl->sizeHint() );
00132     QHBox* hbox = new QHBox( main );
00133     d->passEdit = new KLineEdit( hbox );
00134     if ( cfg->readEntry("EchoMode", "OneStar") == "NoEcho" )
00135         d->passEdit->setEchoMode( QLineEdit::NoEcho );
00136     else
00137         d->passEdit->setEchoMode( QLineEdit::Password );
00138     s = d->passEdit->sizeHint();
00139     d->passEdit->setFixedHeight( s.height() );
00140     d->passEdit->setMinimumWidth( s.width() );
00141     lbl->setBuddy( d->passEdit );
00142     d->layout->addWidget( lbl, 6, 0 );
00143     d->layout->addWidget( hbox, 6, 2 );
00144 
00145     if ( enableKeep )
00146     {
00147         // Row 7: Add spacer
00148         d->layout->addRowSpacing( 7, 4 );
00149         // Row 8: Keep Password
00150         hbox = new QHBox( main );
00151         d->keepCheckBox = new QCheckBox( i18n("&Keep password"), hbox );
00152         d->keepCheckBox->setFixedSize( d->keepCheckBox->sizeHint() );
00153         d->keep = cfg->readBoolEntry("Keep", false );
00154         d->keepCheckBox->setChecked( d->keep );
00155         connect(d->keepCheckBox, SIGNAL(toggled( bool )), SLOT(slotKeep( bool )));
00156         d->layout->addWidget( hbox, 8, 2 );
00157     }
00158 
00159     // Configure necessary key-bindings and connect necessar slots and signals
00160     connect( d->userEdit, SIGNAL(returnPressed()), d->passEdit, SLOT(setFocus()) );
00161     connect( d->passEdit, SIGNAL(returnPressed()), SLOT(slotOk()) );
00162 
00163     if ( !user.isEmpty() )
00164     {
00165         d->userEdit->setText( user );
00166         d->passEdit->setFocus();
00167     }
00168     else
00169         d->userEdit->setFocus();
00170 
00171     d->userEditCombo = 0;
00172 //    setFixedSize( sizeHint() );
00173 }
00174 
00175 QString PasswordDialog::username() const
00176 {
00177     return d->userEdit->text();
00178 }
00179 
00180 QString PasswordDialog::password() const
00181 {
00182     return d->passEdit->text();
00183 }
00184 
00185 void PasswordDialog::setKeepPassword( bool b )
00186 {
00187     if ( d->keepCheckBox )
00188         d->keepCheckBox->setChecked( b );
00189 }
00190 
00191 bool PasswordDialog::keepPassword() const
00192 {
00193     return d->keep;
00194 }
00195 
00196 static void calculateLabelSize(QLabel *label)
00197 {
00198    QString qt_text = label->text();
00199 
00200    int pref_width = 0;
00201    int pref_height = 0;
00202    // Calculate a proper size for the text.
00203    {
00204        QSimpleRichText rt(qt_text, label->font());
00205        QRect d = KGlobalSettings::desktopGeometry(label->topLevelWidget());
00206 
00207        pref_width = d.width() / 4;
00208        rt.setWidth(pref_width-10);
00209        int used_width = rt.widthUsed();
00210        pref_height = rt.height();
00211        if (used_width <= pref_width)
00212        {
00213           while(true)
00214           {
00215              int new_width = (used_width * 9) / 10;
00216              rt.setWidth(new_width-10);
00217              int new_height = rt.height();
00218              if (new_height > pref_height)
00219                 break;
00220              used_width = rt.widthUsed();
00221              if (used_width > new_width)
00222                 break;
00223           }
00224           pref_width = used_width;
00225        }
00226        else
00227        {
00228           if (used_width > (pref_width *2))
00229              pref_width = pref_width *2;
00230           else
00231              pref_width = used_width;
00232        }
00233     }
00234     label->setFixedSize(QSize(pref_width+10, pref_height));
00235 }
00236 
00237 void PasswordDialog::addCommentLine( const QString& label,
00238                                      const QString comment )
00239 {
00240     if (d->nRow > 0)
00241         return;
00242 
00243     QWidget *main = mainWidget();
00244 
00245     QLabel* lbl = new QLabel( label, main);
00246     lbl->setAlignment( Qt::AlignVCenter|Qt::AlignRight );
00247     lbl->setFixedSize( lbl->sizeHint() );
00248     d->layout->addWidget( lbl, d->nRow+2, 0, Qt::AlignLeft );
00249     lbl = new QLabel( comment, main);
00250     lbl->setAlignment( Qt::AlignVCenter|Qt::AlignLeft|Qt::WordBreak );
00251     calculateLabelSize(lbl);
00252     d->layout->addWidget( lbl, d->nRow+2, 2, Qt::AlignLeft );
00253     d->layout->addRowSpacing( 3, 10 ); // Add a spacer
00254     d->nRow++;
00255 }
00256 
00257 void PasswordDialog::slotKeep( bool keep )
00258 {
00259     d->keep = keep;
00260 }
00261 
00262 static QString qrichtextify( const QString& text )
00263 {
00264   if ( text.isEmpty() || text[0] == '<' )
00265     return text;
00266 
00267   QStringList lines = QStringList::split('\n', text);
00268   for(QStringList::Iterator it = lines.begin(); it != lines.end(); ++it)
00269   {
00270     *it = QStyleSheet::convertFromPlainText( *it, QStyleSheetItem::WhiteSpaceNormal );
00271   }
00272 
00273   return lines.join(QString::null);
00274 }
00275 
00276 void PasswordDialog::setPrompt(const QString& prompt)
00277 {
00278     QString text = qrichtextify(prompt);
00279     d->prompt->setText(text);
00280     calculateLabelSize(d->prompt);
00281 }
00282 
00283 void PasswordDialog::setPassword(const QString &p)
00284 {
00285     d->passEdit->setText(p);
00286 }
00287 
00288 void PasswordDialog::setUserReadOnly( bool readOnly )
00289 {
00290     d->userEdit->setReadOnly( readOnly );
00291     if ( readOnly && d->userEdit->hasFocus() )
00292         d->passEdit->setFocus();
00293 }
00294 
00295 void PasswordDialog::setKnownLogins( const QMap<QString, QString>& knownLogins )
00296 {
00297     const int nr = knownLogins.count();
00298     if ( nr == 0 )
00299         return;
00300     if ( nr == 1 ) {
00301         d->userEdit->setText( knownLogins.begin().key() );
00302         setPassword( knownLogins.begin().data() );
00303         return;
00304     }
00305 
00306     Q_ASSERT( !d->userEdit->isReadOnly() );
00307     if ( !d->userEditCombo ) {
00308         delete d->userEdit;
00309         d->userEditCombo = new KComboBox( true, d->userNameHBox );
00310         d->userEdit = d->userEditCombo->lineEdit();
00311         QSize s = d->userEditCombo->sizeHint();
00312         d->userEditCombo->setFixedHeight( s.height() );
00313         d->userEditCombo->setMinimumWidth( s.width() );
00314         d->userNameLabel->setBuddy( d->userEditCombo );
00315         d->layout->addWidget( d->userNameHBox, 4, 2 );
00316     }
00317 
00318     d->knownLogins = knownLogins;
00319     d->userEditCombo->insertStringList( knownLogins.keys() );
00320     d->userEditCombo->setFocus();
00321 
00322     connect( d->userEditCombo, SIGNAL( activated( const QString& ) ),
00323              this, SLOT( slotActivated( const QString& ) ) );
00324 }
00325 
00326 void PasswordDialog::slotActivated( const QString& userName )
00327 {
00328     QMap<QString, QString>::ConstIterator it = d->knownLogins.find( userName );
00329     if ( it != d->knownLogins.end() )
00330         setPassword( it.data() );
00331 }
00332 
00333 
00334 int PasswordDialog::getNameAndPassword( QString& user, QString& pass, bool* keep,
00335                                         const QString& prompt, bool readOnly,
00336                                         const QString& caption,
00337                                         const QString& comment,
00338                                         const QString& label )
00339 {
00340     PasswordDialog* dlg;
00341     if( keep )
00342         dlg = new PasswordDialog( prompt, user, (*keep) );
00343     else
00344         dlg = new PasswordDialog( prompt, user );
00345 
00346     if ( !caption.isEmpty() )
00347         dlg->setPlainCaption( caption );
00348     else
00349         dlg->setPlainCaption( i18n("Authorization Dialog") );
00350 
00351     if ( !comment.isEmpty() )
00352         dlg->addCommentLine( label, comment );
00353 
00354     if ( readOnly )
00355         dlg->setUserReadOnly( readOnly );
00356 
00357     int ret = dlg->exec();
00358     if ( ret == Accepted )
00359     {
00360         user = dlg->username();
00361         pass = dlg->password();
00362         if ( keep ) { (*keep) = dlg->keepPassword(); }
00363     }
00364     delete dlg;
00365     return ret;
00366  }
00367 
00368 void PasswordDialog::virtual_hook( int id, void* data )
00369 { KDialogBase::virtual_hook( id, data ); }
00370 
00371 #include "passdlg.moc"
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