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/*
Copyright (C) 2012 Sérgio Martins <iamsergio@gmail.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 "calendarclipboard_p.h"
#include <kcalutils/dndfactory.h>
#include <kcalutils/icaldrag.h>
#include <KLocalizedString>
#include <KMessageBox>
#include <QApplication>
#include <QClipboard>
using namespace Akonadi;
CalendarClipboard::Private::Private(const Akonadi::CalendarBase::Ptr &calendar,
Akonadi::IncidenceChanger *changer,
CalendarClipboard *qq)
: QObject(qq)
, m_calendar(calendar)
, m_changer(changer)
, m_abortCurrentOperation(false)
, q(qq)
{
Q_ASSERT(m_calendar);
if (!m_changer) {
m_changer = new Akonadi::IncidenceChanger(this);
m_changer->setHistoryEnabled(false);
m_changer->setGroupwareCommunication(false);
}
m_dndfactory = new KCalUtils::DndFactory(m_calendar);
connect(m_changer,
&IncidenceChanger::modifyFinished,
this, &CalendarClipboard::Private::slotModifyFinished);
connect(m_changer,
&IncidenceChanger::deleteFinished,
this, &CalendarClipboard::Private::slotDeleteFinished);
}
CalendarClipboard::Private::~Private()
{
delete m_dndfactory;
}
void CalendarClipboard::Private::getIncidenceHierarchy(const KCalCore::Incidence::Ptr &incidence,
QStringList &uids)
{
// protecion against looping hierarchies
if (incidence && !uids.contains(incidence->uid())) {
KCalCore::Incidence::List immediateChildren = m_calendar->childIncidences(incidence->uid());
foreach (const KCalCore::Incidence::Ptr &child, immediateChildren) {
getIncidenceHierarchy(child, uids);
}
uids.append(incidence->uid());
}
}
void CalendarClipboard::Private::cut(const KCalCore::Incidence::List &incidences)
{
const bool result = m_dndfactory->copyIncidences(incidences);
m_pendingChangeIds.clear();
// Note: Don't use DndFactory::cutIncidences(), it doesn't use IncidenceChanger for deletion
// we would loose async error handling and redo/undo features
if (result) {
Akonadi::Item::List items = m_calendar->itemList(incidences);
const int result = m_changer->deleteIncidences(items);
if (result == -1) {
emit q->cutFinished(/**success=*/false, i18n("Error performing deletion."));
} else {
m_pendingChangeIds << result;
}
} else {
emit q->cutFinished(/**success=*/false, i18n("Error performing copy."));
}
}
void CalendarClipboard::Private::cut(const KCalCore::Incidence::Ptr &incidence)
{
KCalCore::Incidence::List incidences;
incidences << incidence;
cut(incidences);
}
void CalendarClipboard::Private::makeChildsIndependent(const KCalCore::Incidence::Ptr &incidence)
{
Q_ASSERT(incidence);
const KCalCore::Incidence::List childs = m_calendar->childIncidences(incidence->uid());
if (childs.isEmpty()) {
cut(incidence);
} else {
m_pendingChangeIds.clear();
m_abortCurrentOperation = false;
foreach (const KCalCore::Incidence::Ptr &child, childs) {
Akonadi::Item childItem = m_calendar->item(incidence);
if (!childItem.isValid()) {
emit q->cutFinished(/**success=*/ false, i18n("Can't find item: %1", childItem.id()));
return;
}
KCalCore::Incidence::Ptr newIncidence(child->clone());
newIncidence->setRelatedTo(QString());
childItem.setPayload<KCalCore::Incidence::Ptr>(newIncidence);
const int changeId = m_changer->modifyIncidence(childItem, /*originalPayload*/child);
if (changeId == -1) {
m_abortCurrentOperation = true;
break;
} else {
m_pendingChangeIds << changeId;
}
}
if (m_pendingChangeIds.isEmpty() && m_abortCurrentOperation) {
emit q->cutFinished(/**success=*/false, i18n("Error while removing relations."));
} // if m_pendingChangeIds isn't empty, we wait for all jobs to finish first.
}
}
void CalendarClipboard::Private::slotModifyFinished(int changeId, const Akonadi::Item &item,
IncidenceChanger::ResultCode resultCode,
const QString &errorMessage)
{
if (!m_pendingChangeIds.contains(changeId)) {
return; // Not ours, someone else deleted something, not our business.
}
m_pendingChangeIds.remove(changeId);
const bool isLastChange = m_pendingChangeIds.isEmpty();
Q_UNUSED(item);
Q_UNUSED(errorMessage);
if (m_abortCurrentOperation && isLastChange) {
emit q->cutFinished(/**success=*/false, i18n("Error while removing relations."));
} else if (!m_abortCurrentOperation) {
if (resultCode == IncidenceChanger::ResultCodeSuccess) {
if (isLastChange) {
// All children are unparented, lets cut.
Q_ASSERT(item.isValid() && item.hasPayload());
cut(item.payload<KCalCore::Incidence::Ptr>());
}
} else {
m_abortCurrentOperation = true;
}
}
}
void CalendarClipboard::Private::slotDeleteFinished(int changeId, const QVector<Akonadi::Item::Id> &ids,
Akonadi::IncidenceChanger::ResultCode result,
const QString &errorMessage)
{
if (!m_pendingChangeIds.contains(changeId)) {
return; // Not ours, someone else deleted something, not our business.
}
m_pendingChangeIds.remove(changeId);
Q_UNUSED(ids);
if (result == IncidenceChanger::ResultCodeSuccess) {
emit q->cutFinished(/**success=*/true, QString());
} else {
emit q->cutFinished(/**success=*/false, i18n("Error while deleting incidences: %1",
errorMessage));
}
}
CalendarClipboard::CalendarClipboard(const Akonadi::CalendarBase::Ptr &calendar,
Akonadi::IncidenceChanger *changer,
QObject *parent)
: QObject(parent)
, d(new Private(calendar, changer, this))
{
}
CalendarClipboard::~CalendarClipboard()
{
}
void CalendarClipboard::cutIncidence(const KCalCore::Incidence::Ptr &incidence,
CalendarClipboard::Mode mode)
{
const bool hasChildren = !d->m_calendar->childIncidences(incidence->uid()).isEmpty();
if (mode == AskMode && hasChildren) {
const int km = KMessageBox::questionYesNoCancel(Q_NULLPTR,
i18n("The item \"%1\" has sub-to-dos. "
"Do you want to cut just this item and "
"make all its sub-to-dos independent, or "
"cut the to-do with all its sub-to-dos?",
incidence->summary()),
i18n("KOrganizer Confirmation"),
KGuiItem(i18n("Cut Only This")),
KGuiItem(i18n("Cut All")));
if (km == KMessageBox::Cancel) {
emit cutFinished(/*success=*/true, QString());
return;
}
mode = km == KMessageBox::Yes ? SingleMode : RecursiveMode;
} else if (mode == AskMode) {
mode = SingleMode; // Doesn't have children, don't ask
}
if (mode == SingleMode) {
d->makeChildsIndependent(incidence); // Will call d->cut(incidence) when it finishes.
} else {
QStringList uids;
d->getIncidenceHierarchy(incidence, uids);
Q_ASSERT(!uids.isEmpty());
KCalCore::Incidence::List incidencesToCut;
foreach (const QString &uid, uids) {
KCalCore::Incidence::Ptr child = d->m_calendar->incidence(uid);
if (child) {
incidencesToCut << child;
}
}
d->cut(incidencesToCut);
}
}
bool CalendarClipboard::copyIncidence(const KCalCore::Incidence::Ptr &incidence,
CalendarClipboard::Mode mode)
{
const bool hasChildren = !d->m_calendar->childIncidences(incidence->uid()).isEmpty();
if (mode == AskMode && hasChildren) {
const int km = KMessageBox::questionYesNoCancel(Q_NULLPTR,
i18n("The item \"%1\" has sub-to-dos. "
"Do you want to copy just this item or "
"copy the to-do with all its sub-to-dos?",
incidence->summary()),
i18n("KOrganizer Confirmation"),
KGuiItem(i18n("Copy Only This")),
KGuiItem(i18n("Copy All")));
if (km == KMessageBox::Cancel) {
return true;
}
mode = km == KMessageBox::Yes ? SingleMode : RecursiveMode;
} else if (mode == AskMode) {
mode = SingleMode; // Doesn't have children, don't ask
}
KCalCore::Incidence::List incidencesToCopy;
if (mode == SingleMode) {
incidencesToCopy << incidence;
} else {
QStringList uids;
d->getIncidenceHierarchy(incidence, uids);
Q_ASSERT(!uids.isEmpty());
foreach (const QString &uid, uids) {
KCalCore::Incidence::Ptr child = d->m_calendar->incidence(uid);
if (child) {
incidencesToCopy << child;
}
}
}
return d->m_dndfactory->copyIncidences(incidencesToCopy);
}
bool CalendarClipboard::pasteAvailable() const
{
return KCalUtils::ICalDrag::canDecode(QApplication::clipboard()->mimeData());
}
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