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tdepim/knode/knfoldermanager.cpp

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/*
KNode, the KDE newsreader
Copyright (c) 1999-2005 the KNode authors.
See file AUTHORS for details
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.
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, US
*/
#include <tqdir.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kstandarddirs.h>
#include <kdebug.h>
#include "knglobals.h"
#include "knconfigmanager.h"
#include "knfolder.h"
#include "utilities.h"
#include "knfoldermanager.h"
#include "knarticlemanager.h"
#include "kncleanup.h"
#include "knmemorymanager.h"
#include "knmainwidget.h"
KNFolderManager::KNFolderManager(KNArticleManager *a) : a_rtManager(a)
{
//standard folders
TQString dir(locateLocal("data","knode/")+"folders/");
if (dir.isNull()) {
KNHelper::displayInternalFileError();
return;
}
KNFolder *f;
f=new KNFolder(0, i18n("Local Folders"), "root");
mFolderList.append( f );
f->readInfo();
f=new KNFolder(1, i18n("Drafts"), "drafts", root());
mFolderList.append( f );
f->readInfo();
f=new KNFolder(2, i18n("Outbox"), "outbox", root());
mFolderList.append( f );
f->readInfo();
f=new KNFolder(3, i18n("Sent"), "sent", root());
mFolderList.append( f );
f->readInfo();
l_astId=3;
//custom folders
loadCustomFolders();
setCurrentFolder(0);
}
KNFolderManager::~KNFolderManager()
{
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it )
delete (*it);
}
void KNFolderManager::setCurrentFolder(KNFolder *f)
{
c_urrentFolder=f;
a_rtManager->setFolder(f);
kdDebug(5003) << "KNFolderManager::setCurrentFolder() : folder changed" << endl;
if(f && !f->isRootFolder()) {
if( loadHeaders(f) )
a_rtManager->showHdrs();
else
KMessageBox::error(knGlobals.topWidget, i18n("Cannot load index-file."));
}
}
bool KNFolderManager::loadHeaders(KNFolder *f)
{
if( !f || f->isRootFolder() )
return false;
if (f->isLoaded())
return true;
// we want to delete old stuff first => reduce vm fragmentation
knGlobals.memoryManager()->prepareLoad(f);
if (f->loadHdrs()) {
knGlobals.memoryManager()->updateCacheEntry( f );
return true;
}
return false;
}
bool KNFolderManager::unloadHeaders(KNFolder *f, bool force)
{
if(!f || !f->isLoaded())
return false;
if (!force && (c_urrentFolder == f))
return false;
if (f->unloadHdrs(force))
knGlobals.memoryManager()->removeCacheEntry(f);
else
return false;
return true;
}
KNFolder* KNFolderManager::folder(int i)
{
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it )
if ( (*it)->id() == i )
return (*it);
return 0;
}
KNFolder* KNFolderManager::newFolder(KNFolder *p)
{
if (!p)
p = root();
KNFolder *f=new KNFolder(++l_astId, i18n("New folder"), p);
mFolderList.append( f );
emit folderAdded(f);
return f;
}
bool KNFolderManager::deleteFolder(KNFolder *f)
{
if(!f || f->isRootFolder() || f->isStandardFolder() || f->lockedArticles()>0)
return false;
TQValueList<KNFolder*> del;
KNCollection *p;
// find all subfolders of the folder we want to delete
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it ) {
p = (*it)->parent();
while ( p ) {
if ( p == f ) {
if ( (*it)->lockedArticles() > 0 )
return false;
del.append( (*it) );
break;
}
p = p->parent();
}
}
emit folderRemoved(f);
del.append(f);
for ( TQValueList<KNFolder*>::Iterator it = del.begin(); it != del.end(); ++it ) {
if ( c_urrentFolder == (*it) )
c_urrentFolder = 0;
if ( unloadHeaders( (*it), true ) ) {
(*it)->deleteFiles();
mFolderList.remove( (*it) );
delete (*it);
} else
return false;
}
return true;
}
void KNFolderManager::emptyFolder(KNFolder *f)
{
if(!f || f->isRootFolder())
return;
knGlobals.memoryManager()->removeCacheEntry(f);
f->deleteAll();
}
bool KNFolderManager::moveFolder(KNFolder *f, KNFolder *p)
{
if(!f || p==f->parent()) // nothing to be done
return true;
// is "p" a child of "f" ?
KNCollection *p2=p?p->parent():0;
while(p2) {
if(p2==f)
break;
p2=p2->parent();
}
if( (p2 && p2==f) || f==p || f->isStandardFolder() || f->isRootFolder()) // no way ;-)
return false;
emit folderRemoved(f);
// reparent
f->setParent(p);
f->saveInfo();
emit folderAdded(f);
if(c_urrentFolder==f)
emit folderActivated(f);
return true;
}
int KNFolderManager::unsentForAccount(int accId)
{
int cnt=0;
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it ) {
for ( int idx = 0; idx < (*it)->length(); ++idx ) {
KNLocalArticle *a = (*it)->at( idx );
if ( a->serverId() == accId && a->doPost() && !a->posted() )
cnt++;
}
}
return cnt;
}
void KNFolderManager::compactFolder(KNFolder *f)
{
if(!f || f->isRootFolder())
return;
KNCleanUp cup;
cup.compactFolder(f);
}
void KNFolderManager::compactAll(KNCleanUp *cup)
{
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it )
if ( !(*it)->isRootFolder() && (*it)->lockedArticles() == 0 )
cup->appendCollection( (*it) );
}
void KNFolderManager::compactAll()
{
KNCleanUp *cup = new KNCleanUp();
compactAll( cup );
cup->start();
knGlobals.configManager()->cleanup()->setLastCompactDate();
delete cup;
}
void KNFolderManager::importFromMBox(KNFolder *f)
{
if(!f || f->isRootFolder())
return;
f->setNotUnloadable(true);
if (!f->isLoaded() && !loadHeaders(f)) {
f->setNotUnloadable(false);
return;
}
KNLoadHelper helper(knGlobals.topWidget);
KNFile *file = helper.getFile(i18n("Import MBox Folder"));
KNLocalArticle::List list;
KNLocalArticle *art;
TQString s;
int artStart=0, artEnd=0;
bool done=true;
if (file) {
knGlobals.top->setCursorBusy(true);
knGlobals.setStatusMsg(i18n(" Importing articles..."));
knGlobals.top->secureProcessEvents();
if (!file->atEnd()) { // search for the first article...
s = file->readLine();
if (s.left(5) == "From ") {
artStart = file->at();
done = false;
} else {
artStart = file->findString("\n\nFrom ");
if (artStart != -1) {
file->at(artStart+1);
s = file->readLine();
artStart = file->at();
done = false;
}
}
}
knGlobals.top->secureProcessEvents();
if (!done) {
while (!file->atEnd()) {
artEnd = file->findString("\n\nFrom ");
if (artEnd != -1) {
file->at(artStart); // seek the first character of the article
int size=artEnd-artStart;
TQCString buff(size+10);
int readBytes=file->readBlock(buff.data(), size);
if (readBytes != -1) {
buff.at(readBytes)='\0'; //terminate string
art = new KNLocalArticle(0);
art->setEditDisabled(true);
art->setContent(buff);
art->parse();
list.append(art);
}
file->at(artEnd+1);
s = file->readLine();
artStart = file->at();
} else {
if ((int)file->size() > artStart) {
file->at(artStart); // seek the first character of the article
int size=file->size()-artStart;
TQCString buff(size+10);
int readBytes=file->readBlock(buff.data(), size);
if (readBytes != -1) {
buff.at(readBytes)='\0'; //terminate string
art = new KNLocalArticle(0);
art->setEditDisabled(true);
art->setContent(buff);
art->parse();
list.append(art);
}
}
}
if (list.count()%75 == 0)
knGlobals.top->secureProcessEvents();
}
}
knGlobals.setStatusMsg(i18n(" Storing articles..."));
knGlobals.top->secureProcessEvents();
if (!list.isEmpty())
knGlobals.articleManager()->moveIntoFolder(list, f);
knGlobals.setStatusMsg(TQString::null);
knGlobals.top->setCursorBusy(false);
}
f->setNotUnloadable(false);
}
void KNFolderManager::exportToMBox(KNFolder *f)
{
if(!f || f->isRootFolder())
return;
f->setNotUnloadable(true);
if (!f->isLoaded() && !loadHeaders(f)) {
f->setNotUnloadable(false);
return;
}
KNSaveHelper helper(f->name()+".mbox", knGlobals.topWidget);
TQFile *file = helper.getFile(i18n("Export Folder"));
if (file) {
knGlobals.top->setCursorBusy(true);
knGlobals.setStatusMsg(i18n(" Exporting articles..."));
knGlobals.top->secureProcessEvents();
TQTextStream ts(file);
ts.setEncoding(TQTextStream::Latin1);
KNLocalArticle *a;
for(int idx=0; idx<f->length(); idx++) {
a=f->at(idx);
a->setNotUnloadable(true);
if (a->hasContent() || knGlobals.articleManager()->loadArticle(a)) {
ts << "From aaa@aaa Mon Jan 01 00:00:00 1997\n";
a->toStream(ts, true);
ts << "\n";
}
a->setNotUnloadable(false);
if (idx%75 == 0)
knGlobals.top->secureProcessEvents();
}
knGlobals.setStatusMsg(TQString::null);
knGlobals.top->setCursorBusy(false);
}
}
void KNFolderManager::syncFolders()
{
TQString dir(locateLocal("data","knode/")+"folders/");
if (dir.isNull()) {
KNHelper::displayInternalFileError();
return;
}
//sync
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it ) {
if ( !(*it)->isRootFolder() )
(*it)->syncIndex();
(*it)->saveInfo();
}
}
int KNFolderManager::loadCustomFolders()
{
int cnt=0;
TQString dir(locateLocal("data","knode/")+"folders/");
KNFolder *f;
if (dir.isNull()) {
KNHelper::displayInternalFileError();
return 0;
}
TQDir d(dir);
TQStringList entries(d.entryList("custom_*.info")); // ignore info files of standard folders
for(TQStringList::Iterator it=entries.begin(); it != entries.end(); ++it) {
f=new KNFolder();
if(f->readInfo(d.absFilePath(*it))) {
if(f->id()>l_astId)
l_astId=f->id();
mFolderList.append( f );
cnt++;
}
else
delete f;
}
// set parents
if(cnt>0) {
for ( TQValueList<KNFolder*>::Iterator it = mFolderList.begin(); it != mFolderList.end(); ++it ) {
if ( !(*it)->isRootFolder() ) { // the root folder has no parent
KNFolder *par = folder( (*it)->parentId() );
if ( !par )
par = root();
(*it)->setParent( par );
}
}
}
return cnt;
}
#include "knfoldermanager.moc"