Added trash limit configuration option

This work is based on original patch created by Tobias Koenig <tokoe@kde.org> for KDE 3.5.9 and later added to KDE 4.2, and available under GPL version 2 License, or any later version.
See also http://tokoe-kde.blogspot.com/2008/08/size-limits-for-trash.html
This relates to bug 1923.

Signed-off-by: Emanoil Kotsev <deloptes@gmail.com>
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

1 files changed, 316 insertions, 0 deletions

diff --git a/tdeioslave/trash/ktrashpropsdlgplugin.cpp b/tdeioslave/trash/ktrashpropsdlgplugin.cpp
new file mode 100644
index 000000000..9d18f2acf
--- /dev/null
+++ b/tdeioslave/trash/ktrashpropsdlgplugin.cpp
@@ -0,0 +1,316 @@
+/*
+   This file is part of the KDE project
+
+   Copyright (C) 2008 Tobias Koenig <tokoe@kde.org>
+   Copyright (C) 2016 Emanoil Kotsev <deloptes@yahoo.com>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "ktrashpropsdlgplugin.h"
+#include "discspaceutil.h"
+#include "trashimpl.h"
+
+#include <tqcheckbox.h>
+#include <tqcombobox.h>
+#include <tqlabel.h>
+#include <tqlayout.h>
+#include <tqlistbox.h>
+#include <tqspinbox.h>
+
+#include <kdesktopfile.h>
+#include <kgenericfactory.h>
+#include <tdeglobal.h>
+#include <kiconloader.h>
+#include <tdelocale.h>
+#include <knuminput.h>
+
+#include <kdebug.h>
+
+typedef KGenericFactory<KTrashPropsDlgPlugin, KPropertiesDialog> Factory;
+K_EXPORT_COMPONENT_FACTORY( ktrashpropsdlgplugin, Factory( "ktrashpropsdlgplugin" ) )
+
+KTrashPropsDlgPlugin::KTrashPropsDlgPlugin( KPropertiesDialog *dialog, const char*, const TQStringList& )
+  : KPropsDlgPlugin( dialog )
+{
+  kdDebug() << "KTrashPropsDlgPlugin::KTrashPropsDlgPlugin called" << endl;
+  if ( dialog->items().count() != 1 )
+    return;
+
+  KFileItem *item = dialog->items().first();
+
+  if ( !KPropsDlgPlugin::isDesktopFile( item ) )
+    return;
+
+  kdDebug() << "KPropsDlgPlugin::isDesktopFile( item ) passed" << endl;
+  KDesktopFile deskFile( item->url().path(), true /* readonly */ );
+
+  if ( deskFile.readURL() != "trash:/" )
+    return;
+
+  kdDebug() << "deskFile.readURL() != \"trash:/\") passed" << endl;
+  TDEGlobal::locale()->insertCatalogue( "tdeio_trash" );
+
+  mTrashImpl = new TrashImpl();
+  mTrashImpl->init();
+
+  readConfig();
+
+  TQFrame *frame = dialog->addPage( i18n( "Size Limits" ) );
+  setupGui( frame );
+
+
+  mUseTimeLimit->setChecked( mConfigMap[ mCurrentTrash ].useTimeLimit );
+  mUseSizeLimit->setChecked( mConfigMap[ mCurrentTrash ].useSizeLimit );
+  mDays->setValue( mConfigMap[ mCurrentTrash ].days );
+  mPercent->setValue( mConfigMap[ mCurrentTrash ].percent );
+  mPercent->setPrecision(3);
+  mLimitReachedAction->setCurrentItem( mConfigMap[ mCurrentTrash ].actionType );
+  percentChanged(mPercent->value());
+
+  useTypeChanged();
+
+  connect( mUseTimeLimit, SIGNAL( toggled( bool ) ),
+           this, SLOT( setDirty() ) );
+  connect( mUseTimeLimit, SIGNAL( toggled( bool ) ),
+           this, SLOT( useTypeChanged() ) );
+  connect( mDays, SIGNAL( valueChanged( int ) ),
+           this, SLOT( setDirty() ) );
+  connect( mUseSizeLimit, SIGNAL( toggled( bool ) ),
+           this, SLOT( setDirty() ) );
+  connect( mUseSizeLimit, SIGNAL( toggled( bool ) ),
+           this, SLOT( useTypeChanged() ) );
+  connect( mPercent, SIGNAL( valueChanged( double ) ),
+           this, SLOT( percentChanged( double ) ) );
+  connect( mPercent, SIGNAL( valueChanged( double ) ),
+           this, SLOT( setDirty() ) );
+  connect( mLimitReachedAction, SIGNAL( activated( int ) ),
+           this, SLOT( setDirty() ) );
+
+ trashChanged( 0 );
+}
+
+KTrashPropsDlgPlugin::~KTrashPropsDlgPlugin()
+{
+}
+
+void KTrashPropsDlgPlugin::applyChanges()
+{
+  if ( !mCurrentTrash.isEmpty() ) {
+    ConfigEntry entry;
+    entry.useTimeLimit = mUseTimeLimit->isChecked();
+    entry.days = mDays->value();
+    entry.useSizeLimit = mUseSizeLimit->isChecked();
+    entry.percent = mPercent->value(),
+    entry.actionType = mLimitReachedAction->currentItem();
+    mConfigMap.insert( mCurrentTrash, entry );
+  }
+
+  writeConfig();
+}
+
+void KTrashPropsDlgPlugin::percentChanged( double percent )
+{
+  DiscSpaceUtil util( mCurrentTrash );
+
+  double partitionSize = util.size() * 1024.0; // convert to byte
+
+  double size = partitionSize*(percent/100.0);
+
+// Step should be depending on size
+// https://api.kde.org/3.5-api/kdelibs-apidocs/kdeui/html/classKDoubleSpinBox.html
+// https://api.kde.org/3.5-api/kdelibs-apidocs/kdeui/html/knuminput_8cpp_source.html
+  mPercent->setPrecision(3);
+
+  TQString unit = i18n( "Byte" );
+  if ( size > 1024 ) {
+    unit = i18n( "KByte" );
+    size = size/1024.0;
+    mPercent->setLineStep(0.001);
+  }
+  if ( size > 1024 ) {
+    unit = i18n( "MByte" );
+    size = size/1024.0;
+    mPercent->setLineStep(0.01);
+  }
+  if ( size > 1024 ) {
+    unit = i18n( "GByte" );
+    size = size/1024.0;
+    mPercent->setLineStep(0.1);
+  }
+  if ( size > 1024 ) {
+    unit = i18n( "TByte" );
+    size = size/1024.0;
+    mPercent->setLineStep(1);
+  }
+
+  mSizeLabel->setText( i18n( "(%1 %2)" ).arg( TQString::number( size, 'f', 2 ) ).arg( unit ) );
+
+}
+
+void KTrashPropsDlgPlugin::trashChanged( int value )
+{
+  const TrashImpl::TrashDirMap map = mTrashImpl->trashDirectories();
+
+  if ( !mCurrentTrash.isEmpty() ) {
+    ConfigEntry entry;
+    entry.useTimeLimit = mUseTimeLimit->isChecked();
+    entry.days = mDays->value();
+    entry.useSizeLimit = mUseSizeLimit->isChecked();
+    entry.percent = mPercent->value(),
+    entry.actionType = mLimitReachedAction->currentItem();
+    mConfigMap.insert( mCurrentTrash, entry );
+  }
+
+  mCurrentTrash = map[ value ];
+
+  if ( mConfigMap.contains( mCurrentTrash ) ) {
+    const ConfigEntry entry = mConfigMap[ mCurrentTrash ];
+    mUseTimeLimit->setChecked( entry.useTimeLimit );
+    mDays->setValue( entry.days );
+    mUseSizeLimit->setChecked( entry.useSizeLimit );
+    mPercent->setValue( entry.percent );
+    mLimitReachedAction->setCurrentItem( entry.actionType );
+  } else {
+    mUseTimeLimit->setChecked( false );
+    mDays->setValue( 7 );
+    mUseSizeLimit->setChecked( true );
+    mPercent->setValue( 10.0 );
+    mLimitReachedAction->setCurrentItem( 0 );
+  }
+
+  percentChanged( mPercent->value() );
+}
+
+void KTrashPropsDlgPlugin::useTypeChanged()
+{
+  mDays->setEnabled( mUseTimeLimit->isChecked() );
+  mSizeWidget->setEnabled( mUseSizeLimit->isChecked() );
+}
+
+void KTrashPropsDlgPlugin::readConfig()
+{
+  kdDebug() << "KTrashPropsDlgPlugin::readConfig() called" << endl;
+  TDEConfig config( "trashrc" );
+  mConfigMap.clear();
+
+  const TQStringList groups = config.groupList();
+  for ( uint i = 0; i < groups.count(); ++i ) {
+    if ( groups[ i ].startsWith( "/" ) ) {
+      config.setGroup( groups[ i ] );
+      ConfigEntry entry;
+      entry.useTimeLimit = config.readBoolEntry( "UseTimeLimit", false );
+      entry.days = config.readNumEntry( "Days", 7 );
+      entry.useSizeLimit = config.readBoolEntry( "UseSizeLimit", true );
+      entry.percent = config.readDoubleNumEntry( "Percent", 10 );
+      entry.actionType = config.readNumEntry( "LimitReachedAction", 0 );
+      mConfigMap.insert( groups[ i ], entry );
+    }
+  }
+}
+
+void KTrashPropsDlgPlugin::writeConfig()
+{
+  kdDebug() << "KTrashPropsDlgPlugin::writeConfig() called" << endl;
+  TDEConfig config( "trashrc" );
+
+  // first delete all existing groups
+  const TQStringList groups = config.groupList();
+  for ( uint i = 0; i < groups.count(); ++i )
+    if ( groups[ i ].startsWith( "/" ) )
+      config.deleteGroup( groups[ i ] );
+
+  TQMapConstIterator<TQString, ConfigEntry> it;
+  for ( it = mConfigMap.begin(); it != mConfigMap.end(); ++it ) {
+    config.setGroup( it.key() );
+    config.writeEntry( "UseTimeLimit", it.data().useTimeLimit );
+    config.writeEntry( "Days", it.data().days );
+    config.writeEntry( "UseSizeLimit", it.data().useSizeLimit );
+    config.writeEntry( "Percent", it.data().percent );
+    config.writeEntry( "LimitReachedAction", it.data().actionType );
+  }
+
+  config.sync();
+}
+
+void KTrashPropsDlgPlugin::setupGui( TQFrame *frame )
+{
+  kdDebug() << "KTrashPropsDlgPlugin::setupGui( TQFrame *frame )" << endl;
+  TQVBoxLayout *layout = new TQVBoxLayout( frame, 11, 6 );
+
+  TrashImpl::TrashDirMap map = mTrashImpl->trashDirectories();
+  if ( map.count() != 1 ) {
+    // If we have multiple trashes, we setup a widget to choose
+    // which trash to configure
+    TQListBox *mountPoints = new TQListBox( frame );
+    layout->addWidget( mountPoints );
+
+    const TQPixmap folderPixmap = TDEGlobal::iconLoader()->loadIcon( "folder", TDEIcon::Small );
+    TQMapConstIterator<int, TQString> it;
+    for ( it = map.begin(); it != map.end(); ++it ) {
+      DiscSpaceUtil util( it.data() );
+      mountPoints->insertItem( folderPixmap, util.mountPoint(), it.key() ); 
+    }
+
+    mountPoints->setCurrentItem( 0 );
+
+    connect( mountPoints, SIGNAL( highlighted( int ) ), SLOT( trashChanged( int ) ) );
+  } else {
+    mCurrentTrash = map[0];
+  }
+
+  TQHBoxLayout *daysLayout = new TQHBoxLayout( layout );
+
+  mUseTimeLimit = new TQCheckBox( i18n( "Delete files older than:" ), frame );
+  daysLayout->addWidget( mUseTimeLimit );
+  mDays = new TQSpinBox( 1, 365, 1, frame );
+  mDays->setSuffix( " days" );
+  daysLayout->addWidget( mDays );
+
+  TQGridLayout *sizeLayout = new TQGridLayout( layout, 2, 2 );
+  mUseSizeLimit = new TQCheckBox( i18n( "Limit to maximum size" ), frame );
+  sizeLayout->addMultiCellWidget( mUseSizeLimit, 0, 0, 0, 1 );
+
+  mSizeWidget = new TQWidget( frame );
+  sizeLayout->setColSpacing( 0, 30 );
+  sizeLayout->addWidget( mSizeWidget, 1, 1 );
+
+  TQGridLayout *sizeWidgetLayout = new TQGridLayout( mSizeWidget, 2, 3, 11, 6 );
+
+  TQLabel *label = new TQLabel( i18n( "Maximum Size:" ), mSizeWidget );
+  sizeWidgetLayout->addWidget( label, 0, 0 );
+
+  mPercent = new KDoubleSpinBox( 0.001, 100, 1, 10, 3, mSizeWidget );
+  mPercent->setSuffix( " %" );
+  sizeWidgetLayout->addWidget( mPercent, 0, 1 );
+
+  mSizeLabel = new TQLabel( mSizeWidget );
+  sizeWidgetLayout->addWidget( mSizeLabel, 0, 2 );
+
+  label = new TQLabel( i18n( "When limit reached:" ), mSizeWidget );
+  sizeWidgetLayout->addWidget( label, 1, 0 );
+
+  mLimitReachedAction = new TQComboBox( mSizeWidget );
+  mLimitReachedAction->insertItem( i18n( "Warn me" ) );
+  mLimitReachedAction->insertItem( i18n( "Delete oldest files from trash" ) );
+  mLimitReachedAction->insertItem( i18n( "Delete biggest files from trash" ) );
+  sizeWidgetLayout->addMultiCellWidget( mLimitReachedAction, 1, 1, 1, 2 );
+
+  layout->addStretch();
+
+}
+
+#include "ktrashpropsdlgplugin.moc"