File: calendarclipboard.cpp

package info (click to toggle)
akonadi-calendar 4:18.08.3-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 3,808 kB
  • sloc: cpp: 14,079; xml: 36; makefile: 8; sh: 4
file content (281 lines) | stat: -rw-r--r-- 10,326 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
/*
   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())) {
        const KCalCore::Incidence::List immediateChildren = m_calendar->childIncidences(incidence->uid());

        for (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;
        for (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(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;
        for (const QString &uid : qAsConst(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(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());
        for (const QString &uid : qAsConst(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());
}