Forwardport "Warn if the mail is sent to a large number of recipient (kolab issue 3377)".

svn path=/branches/kdepim/enterprise4/kdepim/; revision=930375

configuredialog.cpp

@@ -2913,6 +2913,40 @@ ComposerPageGeneralTab::ComposerPageGeneralTab( QWidget * parent )
   connect( mWordWrapCheck, SIGNAL(toggled(bool)),
            mWrapColumnSpin, SLOT(setEnabled(bool)) );
 
+  // a checkbox for "too many recipient warning" and a spinbox for the recipient threshold
+  hlay = new QHBoxLayout(); // inherits spacing
+  vlay->addLayout( hlay );
+  mRecipientCheck = new QCheckBox(
+           GlobalSettings::self()->tooManyRecipientsItem()->label(), this);
+  mRecipientCheck->setObjectName( "kcfg_TooManyReceipients" );
+  hlay->addWidget( mRecipientCheck );
+  connect( mRecipientCheck, SIGNAL( stateChanged(int) ),
+           this, SLOT( slotEmitChanged( void ) ) );
+
+  QString recipientCheckWhatsthis =
+      i18n( GlobalSettings::self()->tooManyRecipientsItem()->whatsThis().utf8() );
+  QWhatsThis::add( mRecipientCheck, recipientCheckWhatsthis );
+  QToolTip::add( mRecipientCheck, recipientCheckWhatsthis );
+
+  mRecipientSpin = new KIntSpinBox( 1/*min*/, 255/*max*/, 1/*step*/,
+                                    5/*init*/, this );
+  mRecipientSpin->setObjectName( "kcfg_RecipientThreshold" );
+  mRecipientSpin->setEnabled( false );
+  connect( mRecipientSpin, SIGNAL( valueChanged(int) ),
+           this, SLOT( slotEmitChanged( void ) ) );
+
+  QString recipientWhatsthis =
+      i18n( GlobalSettings::self()->recipientThresholdItem()->whatsThis().utf8() );
+  QWhatsThis::add( mRecipientSpin, recipientWhatsthis );
+  QToolTip::add( mRecipientSpin, recipientWhatsthis );
+
+
+  hlay->addWidget( mRecipientSpin );
+  hlay->addStretch( 1 );
+  // only enable the spinbox if the checkbox is checked:
+  connect( mRecipientCheck, SIGNAL(toggled(bool)),
+           mRecipientSpin, SLOT(setEnabled(bool)) );
+
   hlay = new QHBoxLayout(); // inherits spacing
   vlay->addLayout( hlay );
   mAutoSave = new KIntSpinBox( 0, 60, 1, 1, this );
@@ -3002,8 +3036,9 @@ void ComposerPage::GeneralTab::doLoadFromGlobalSettings() {
   mSmartQuoteCheck->setChecked( GlobalSettings::self()->smartQuote() );
   mAutoRequestMDNCheck->setChecked( GlobalSettings::self()->requestMDN() );
   mWordWrapCheck->setChecked( GlobalSettings::self()->wordWrap() );
-
   mWrapColumnSpin->setValue( GlobalSettings::self()->lineWrapWidth() );
+  mRecipientCheck->setChecked( GlobalSettings::self()->tooManyRecipients() );
+  mRecipientSpin->setValue( GlobalSettings::self()->recipientThreshold() );
   mAutoSave->setValue( GlobalSettings::self()->autosaveInterval() );
 
   // editor group:
@@ -3031,6 +3066,10 @@ void ComposerPage::GeneralTab::installProfile( KConfig * profile ) {
     mWordWrapCheck->setChecked( composer.readEntry( "word-wrap", false ) );
   if ( composer.hasKey( "break-at" ) )
     mWrapColumnSpin->setValue( composer.readEntry( "break-at", 0 ) );
+  if ( composer.hasKey( "too-many-recipients" ) )
+    mRecipientCheck->setChecked( composer.readEntry( "too-many-recipients", false ) );
+  if ( composer.hasKey( "recipient-threshold" ) )
+    mRecipientSpin->setValue( composer.readEntry( "recipient-threshold", 5 ) );
   if ( composer.hasKey( "autosave" ) )
     mAutoSave->setValue( composer.readEntry( "autosave", 0 ) );
 
@@ -3050,8 +3089,9 @@ void ComposerPage::GeneralTab::save() {
   GlobalSettings::self()->setSmartQuote( mSmartQuoteCheck->isChecked() );
   GlobalSettings::self()->setRequestMDN( mAutoRequestMDNCheck->isChecked() );
   GlobalSettings::self()->setWordWrap( mWordWrapCheck->isChecked() );
-
   GlobalSettings::self()->setLineWrapWidth( mWrapColumnSpin->value() );
+  GlobalSettings::self()->setTooManyRecipients( mRecipientCheck->isChecked() );
+  GlobalSettings::self()->setRecipientThreshold( mRecipientSpin->value() );
   GlobalSettings::self()->setAutosaveInterval( mAutoSave->value() );
 
   // editor group:

configuredialog_p.h

@@ -712,6 +712,8 @@ private:
   QCheckBox	*mShowRecentAddressesInComposer;
   QCheckBox     *mWordWrapCheck;
   KIntSpinBox   *mWrapColumnSpin;
+  QCheckBox     *mRecipientCheck;
+  KIntSpinBox   *mRecipientSpin;
   KIntSpinBox   *mAutoSave;
   QCheckBox     *mExternalEditorCheck;
   KUrlRequester *mEditorRequester;

kmail.kcfg

@@ -334,7 +334,19 @@
         <min>30</min>
         <max>255</max>
       </entry>
-      <entry name="PreviousIdentity" type="UInt" key="previous-identity" />
+       <entry name="TooManyRecipients" type="Bool" key="too-many-recipients">
+        <label>Warn if the recipient number is bigger than</label>
+        <default>true</default>
+        <whatsthis>If there are more recipients than this number for a mail, KMail warns the user and asks for a confirmation before sending the mail. The warning can be turned off.</whatsthis>
+      </entry>
+      <entry name="RecipientThreshold" type="Int" key="recipient-threshold">
+        <label></label>
+        <default>5</default>
+        <min>1</min>
+        <max>255</max>
+        <whatsthis>If there are more recipients than this number for a mail, KMail warns the user and asks for a confirmation before sending the mail.</whatsthis>
+     </entry>
+     <entry name="PreviousIdentity" type="UInt" key="previous-identity" />
       <entry name="PreviousFcc" type="String" key="previous-fcc" />
       <entry name="CurrentTransport" type="String" key="current-transport" />
       <entry name="MaxTransportEntries" type="Int" key="max-transport-items">
@@ -448,7 +460,7 @@
           <default>false</default>
       </entry>
       <entry name="SnippetSplitterPosition" type="IntList"/>
-      
+
       <entry name="MaximumAttachmentSize" type="Int">
           <label>The maximum size in MB that email attachments are allowed to have (-1 for no limit).</label>
           <default>-1</default>

kmcomposewin.cpp

@@ -3735,6 +3735,8 @@ void KMComposeWin::slotContinueDoSend( bool sentOk )
 //----------------------------------------------------------------------------
 void KMComposeWin::slotSendLater()
 {
+  if ( !checkRecipientNumber() )
+      return;
   if ( mEditor->checkExternalEditorFinished() ) {
     doSend( KMail::MessageSender::SendLater );
   }
@@ -3784,6 +3786,8 @@ void KMComposeWin::slotSendNow()
   if ( !mEditor->checkExternalEditorFinished() ) {
     return;
   }
+  if ( !checkRecipientNumber() )
+    return;
 
   if ( GlobalSettings::self()->confirmBeforeSend() ) {
     int rc = KMessageBox::warningYesNoCancel( mMainWidget,
@@ -3802,6 +3806,22 @@ void KMComposeWin::slotSendNow()
   }
 }
 
+//----------------------------------------------------------------------------
+bool KMComposeWin::checkRecipientNumber() const
+{
+  int thresHold = GlobalSettings::self()->recipientThreshold();
+  if ( GlobalSettings::self()->tooManyRecipients() && mRecipientsEditor->recipients().count() > thresHold ) {
+    if ( KMessageBox::questionYesNo( mMainWidget,
+         i18n("You are trying to send the mail to more than %1 recipients. Send message anyway?").arg(thresHold),
+         i18n("Too many receipients"),
+         KGuiItem( i18n("&Send as Is") ),
+         KGuiItem( i18n("&Edit Recipients") ) ) == KMessageBox::No ) {
+            return false;
+    }
+  }
+  return true;
+}
+
 //----------------------------------------------------------------------------
 void KMComposeWin::slotAppendSignature()
 {

kmcomposewin.h

@@ -537,6 +537,12 @@ class KMComposeWin : public KMail::Composer
     void rethinkHeaderLine( int value, int mask, int &row,
                             QLabel *lbl, QComboBox *cbx, QCheckBox *chk );
 
+    /**
+     * Checks how many recipients are and warns if there are too many.
+     * @return true, if the user accepted the warning and the message should be sent
+    */
+    bool checkRecipientNumber() const;
+
     /**
      * Initialization methods
      */