qt5base-lts/tests/auto/gui/kernel/qclipboard/tst_qclipboard.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
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**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <QtCore/QDebug>
#include <QtCore/QFileInfo>
#include <QtCore/QDir>
#include <QtGui/QGuiApplication>
#include <QtGui/QClipboard>
#ifdef Q_OS_MAC
#include <Carbon/Carbon.h>
#endif
class tst_QClipboard : public QObject
{
Q_OBJECT
private slots:
void init();
void copy_exit_paste();
void capabilityFunctions();
void modes();
void testSignals();
void setMimeData();
void clearBeforeSetText();
private:
bool nativeClipboardWorking();
};
void tst_QClipboard::init()
{
const QString testdataDir = QFileInfo(QFINDTESTDATA("copier")).absolutePath();
QVERIFY2(QDir::setCurrent(testdataDir), qPrintable("Could not chdir to " + testdataDir));
}
bool tst_QClipboard::nativeClipboardWorking()
{
#ifdef Q_OS_MAC
PasteboardRef pasteboard;
OSStatus status = PasteboardCreate(0, &pasteboard);
if (status == noErr)
CFRelease(pasteboard);
return status == noErr;
#endif
return true;
}
Q_DECLARE_METATYPE(QClipboard::Mode)
/*
Tests that the capability functions are implemented on all
platforms.
*/
void tst_QClipboard::capabilityFunctions()
{
QClipboard * const clipboard = QGuiApplication::clipboard();
clipboard->supportsSelection();
clipboard->supportsFindBuffer();
clipboard->ownsSelection();
clipboard->ownsClipboard();
clipboard->ownsFindBuffer();
}
/*
Test that text inserted into the clipboard in different modes is
kept separate.
*/
void tst_QClipboard::modes()
{
QClipboard * const clipboard = QGuiApplication::clipboard();
if (!nativeClipboardWorking())
QSKIP("Native clipboard not working in this setup");
const QString defaultMode = "default mode text;";
clipboard->setText(defaultMode);
QCOMPARE(clipboard->text(), defaultMode);
if (clipboard->supportsSelection()) {
const QString selectionMode = "selection mode text";
clipboard->setText(selectionMode, QClipboard::Selection);
QCOMPARE(clipboard->text(QClipboard::Selection), selectionMode);
QCOMPARE(clipboard->text(), defaultMode);
}
if (clipboard->supportsFindBuffer()) {
const QString searchMode = "find mode text";
clipboard->setText(searchMode, QClipboard::FindBuffer);
QCOMPARE(clipboard->text(QClipboard::FindBuffer), searchMode);
QCOMPARE(clipboard->text(), defaultMode);
}
}
/*
Test that the appropriate signals are emitted when the clipboard
contents is changed by calling the qt functions.
*/
void tst_QClipboard::testSignals()
{
qRegisterMetaType<QClipboard::Mode>("QClipboard::Mode");
if (!nativeClipboardWorking())
QSKIP("Native clipboard not working in this setup");
QClipboard * const clipboard = QGuiApplication::clipboard();
QSignalSpy changedSpy(clipboard, SIGNAL(changed(QClipboard::Mode)));
QSignalSpy dataChangedSpy(clipboard, SIGNAL(dataChanged()));
QSignalSpy searchChangedSpy(clipboard, SIGNAL(findBufferChanged()));
QSignalSpy selectionChangedSpy(clipboard, SIGNAL(selectionChanged()));
const QString text = "clipboard text;";
// Test the default mode signal.
clipboard->setText(text);
QCOMPARE(dataChangedSpy.count(), 1);
QCOMPARE(searchChangedSpy.count(), 0);
QCOMPARE(selectionChangedSpy.count(), 0);
QCOMPARE(changedSpy.count(), 1);
QCOMPARE(changedSpy.at(0).count(), 1);
QCOMPARE(qVariantValue<QClipboard::Mode>(changedSpy.at(0).at(0)), QClipboard::Clipboard);
changedSpy.clear();
// Test the selection mode signal.
if (clipboard->supportsSelection()) {
clipboard->setText(text, QClipboard::Selection);
QCOMPARE(selectionChangedSpy.count(), 1);
QCOMPARE(changedSpy.count(), 1);
QCOMPARE(changedSpy.at(0).count(), 1);
QCOMPARE(qVariantValue<QClipboard::Mode>(changedSpy.at(0).at(0)), QClipboard::Selection);
} else {
QCOMPARE(selectionChangedSpy.count(), 0);
}
QCOMPARE(dataChangedSpy.count(), 1);
QCOMPARE(searchChangedSpy.count(), 0);
changedSpy.clear();
// Test the search mode signal.
if (clipboard->supportsFindBuffer()) {
clipboard->setText(text, QClipboard::FindBuffer);
QCOMPARE(searchChangedSpy.count(), 1);
QCOMPARE(changedSpy.count(), 1);
QCOMPARE(changedSpy.at(0).count(), 1);
QCOMPARE(qVariantValue<QClipboard::Mode>(changedSpy.at(0).at(0)), QClipboard::FindBuffer);
} else {
QCOMPARE(searchChangedSpy.count(), 0);
}
QCOMPARE(dataChangedSpy.count(), 1);
}
static bool runHelper(const QString &program, const QStringList &arguments, QByteArray *errorMessage)
{
QProcess process;
process.setReadChannelMode(QProcess::ForwardedChannels);
process.start(program, arguments);
if (!process.waitForStarted()) {
*errorMessage = "Unable to start '" + program.toLocal8Bit() + " ': "
+ process.errorString().toLocal8Bit();
return false;
}
// Windows: Due to implementation changes, the event loop needs
// to be spun since we ourselves also need to answer the
// WM_DRAWCLIPBOARD message as we are in the chain of clipboard
// viewers.
bool running = true;
for (int i = 0; i < 60 && running; ++i) {
QGuiApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
if (process.waitForFinished(500))
running = false;
}
if (running) {
process.kill();
*errorMessage = "Timeout running '" + program.toLocal8Bit() + '\'';
return false;
}
if (process.exitStatus() != QProcess::NormalExit) {
*errorMessage = "Process '" + program.toLocal8Bit() + "' crashed.";
return false;
}
if (process.exitCode()) {
*errorMessage = "Process '" + program.toLocal8Bit() + "' returns "
+ QByteArray::number(process.exitCode());
return false;
}
return true;
}
// Test that pasted text remains on the clipboard after a Qt application exits.
void tst_QClipboard::copy_exit_paste()
{
#ifndef QT_NO_PROCESS
#if !defined(Q_OS_WIN) && !defined(Q_OS_MAC)
QSKIP("This test does not make sense on X11 and embedded, copied data disappears from the clipboard when the application exits ");
// ### It's still possible to test copy/paste - just keep the apps running
#endif
if (!nativeClipboardWorking())
QSKIP("Native clipboard not working in this setup");
const QStringList stringArgument(QStringLiteral("Test string."));
QByteArray errorMessage;
QVERIFY2(runHelper(QStringLiteral("copier/copier"), stringArgument, &errorMessage),
errorMessage.constData());
#ifdef Q_OS_MAC
// The Pasteboard needs a moment to breathe (at least on older Macs).
QTest::qWait(100);
#endif
QVERIFY2(runHelper(QStringLiteral("paster/paster"), stringArgument, &errorMessage),
errorMessage.constData());
#endif
}
void tst_QClipboard::setMimeData()
{
if (!nativeClipboardWorking())
QSKIP("Native clipboard not working in this setup");
QMimeData *mimeData = new QMimeData;
const QString TestName(QLatin1String("tst_QClipboard::setMimeData() mimeData"));
mimeData->setObjectName(TestName);
#if defined(Q_OS_WINCE)
// need to set text on CE
mimeData->setText(QLatin1String("Qt/CE foo"));
#endif
QGuiApplication::clipboard()->setMimeData(mimeData);
QCOMPARE(QGuiApplication::clipboard()->mimeData(), (const QMimeData *)mimeData);
QCOMPARE(QGuiApplication::clipboard()->mimeData()->objectName(), TestName);
// set it to the same data again, it shouldn't delete mimeData (and crash as a result)
QGuiApplication::clipboard()->setMimeData(mimeData);
QCOMPARE(QGuiApplication::clipboard()->mimeData(), (const QMimeData *)mimeData);
QCOMPARE(QGuiApplication::clipboard()->mimeData()->objectName(), TestName);
QGuiApplication::clipboard()->clear();
const QMimeData *appMimeData = QGuiApplication::clipboard()->mimeData();
QVERIFY(appMimeData != mimeData || appMimeData->objectName() != TestName);
// check for crash when using the same mimedata object on several clipboards
QMimeData *data = new QMimeData;
data->setText("foo");
QGuiApplication::clipboard()->setMimeData(data, QClipboard::Clipboard);
QGuiApplication::clipboard()->setMimeData(data, QClipboard::Selection);
QGuiApplication::clipboard()->setMimeData(data, QClipboard::FindBuffer);
QSignalSpy spySelection(QGuiApplication::clipboard(), SIGNAL(selectionChanged()));
QSignalSpy spyData(QGuiApplication::clipboard(), SIGNAL(dataChanged()));
QSignalSpy spyFindBuffer(QGuiApplication::clipboard(), SIGNAL(findBufferChanged()));
QGuiApplication::clipboard()->clear(QClipboard::Clipboard);
QGuiApplication::clipboard()->clear(QClipboard::Selection); // used to crash on X11
QGuiApplication::clipboard()->clear(QClipboard::FindBuffer);
#if defined(Q_WS_X11)
QCOMPARE(spySelection.count(), 1);
QCOMPARE(spyData.count(), 1);
QCOMPARE(spyFindBuffer.count(), 0);
#elif defined(Q_OS_MAC)
QCOMPARE(spySelection.count(), 0);
QCOMPARE(spyData.count(), 1);
QCOMPARE(spyFindBuffer.count(), 1);
#elif defined(Q_WS_WIN)
QCOMPARE(spySelection.count(), 0);
QCOMPARE(spyData.count(), 1);
QCOMPARE(spyFindBuffer.count(), 0);
#endif
// an other crash test
data = new QMimeData;
data->setText("foo");
QGuiApplication::clipboard()->setMimeData(data, QClipboard::Clipboard);
QGuiApplication::clipboard()->setMimeData(data, QClipboard::Selection);
QGuiApplication::clipboard()->setMimeData(data, QClipboard::FindBuffer);
QMimeData *newData = new QMimeData;
newData->setText("bar");
spySelection.clear();
spyData.clear();
spyFindBuffer.clear();
QGuiApplication::clipboard()->setMimeData(newData, QClipboard::Clipboard);
QGuiApplication::clipboard()->setMimeData(newData, QClipboard::Selection); // used to crash on X11
QGuiApplication::clipboard()->setMimeData(newData, QClipboard::FindBuffer);
#if defined(Q_WS_X11)
QCOMPARE(spySelection.count(), 1);
QCOMPARE(spyData.count(), 1);
QCOMPARE(spyFindBuffer.count(), 0);
#elif defined(Q_OS_MAC)
QCOMPARE(spySelection.count(), 0);
QCOMPARE(spyData.count(), 1);
QCOMPARE(spyFindBuffer.count(), 1);
#elif defined(Q_WS_WIN)
QCOMPARE(spySelection.count(), 0);
QCOMPARE(spyData.count(), 1);
QCOMPARE(spyFindBuffer.count(), 0);
#endif
}
void tst_QClipboard::clearBeforeSetText()
{
QGuiApplication::processEvents();
if (!nativeClipboardWorking())
QSKIP("Native clipboard not working in this setup");
const QString text = "tst_QClipboard::clearBeforeSetText()";
// setText() should work after processEvents()
QGuiApplication::clipboard()->setText(text);
QCOMPARE(QGuiApplication::clipboard()->text(), text);
QGuiApplication::processEvents();
QCOMPARE(QGuiApplication::clipboard()->text(), text);
// same with clear()
QGuiApplication::clipboard()->clear();
QVERIFY(QGuiApplication::clipboard()->text().isEmpty());
QGuiApplication::processEvents();
QVERIFY(QGuiApplication::clipboard()->text().isEmpty());
// setText() again
QGuiApplication::clipboard()->setText(text);
QCOMPARE(QGuiApplication::clipboard()->text(), text);
QGuiApplication::processEvents();
QCOMPARE(QGuiApplication::clipboard()->text(), text);
// clear() immediately followed by setText() should still return the text
QGuiApplication::clipboard()->clear();
QVERIFY(QGuiApplication::clipboard()->text().isEmpty());
QGuiApplication::clipboard()->setText(text);
QCOMPARE(QGuiApplication::clipboard()->text(), text);
QGuiApplication::processEvents();
QCOMPARE(QGuiApplication::clipboard()->text(), text);
}
QTEST_MAIN(tst_QClipboard)
#include "tst_qclipboard.moc"