plasma-framework/autotests/iconitemtest.cpp

/******************************************************************************
*   Copyright 2016 David Rosca <nowrep@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 "iconitemtest.h"

#include <QIcon>
#include <QQmlEngine>
#include <QQmlContext>
#include <QQmlComponent>
#include <QQuickItemGrabResult>
#include <QtTest/QSignalSpy>

#include <KIconLoader>
#include <KIconEngine>

#include "plasma/theme.h"
#include "plasma/svg.h"

static bool imageIsEmpty(const QImage &img)
{
    const QColor empty = QColor::fromRgba(0);
    for (int i = 0; i < img.width(); ++i) {
        for (int j = 0; j < img.height(); ++j) {
            if (img.pixelColor(i, j) != empty) {
                return false;
            }
        }
    }
    return true;
}

void IconItemTest::initTestCase()
{
    m_view = new QQuickView();
    m_view->setSource(QUrl::fromLocalFile(QFINDTESTDATA("data/view.qml")));
    m_view->show();
    QTest::qWaitForWindowExposed(m_view);
}

void IconItemTest::cleanup()
{
    qDeleteAll(m_view->rootObject()->childItems());
}

QQuickItem *IconItemTest::createIconItem()
{
    QByteArray iconQml =
        "import QtQuick 2.0;"
        "import org.kde.plasma.core 2.0 as PlasmaCore;"
        "PlasmaCore.IconItem {"
        "    id: root;"
        "}";

    QQmlComponent component(m_view->engine());

    QSignalSpy spy(&component, SIGNAL(statusChanged(QQmlComponent::Status)));
    component.setData(iconQml, QUrl("test://iconTest"));
    if (component.status() != QQmlComponent::Ready) {
        spy.wait();
    }

    QQuickItem *item = qobject_cast<QQuickItem*>(component.create(m_view->engine()->rootContext()));
    Q_ASSERT(item && qstrcmp(item->metaObject()->className(), "IconItem") == 0);
    item->setParentItem(m_view->rootObject());
    return item;
}

QImage IconItemTest::grabImage(QQuickItem *item)
{
    QSharedPointer<QQuickItemGrabResult> grab = item->grabToImage();
    QSignalSpy spy(grab.data(), SIGNAL(ready()));
    spy.wait();
    return grab->image();
}

// ------ Tests
void IconItemTest::invalidIcon()
{
    QString name("tst-plasma-framework-invalid-icon-name");
    KIconLoader iconLoader("tst_plasma-framework");
    if (iconLoader.hasIcon(name)) {
        QSKIP("Current icon theme has 'tst-plasma-framework-invalid-icon-name' icon.");
    }

    QQuickItem *item = createIconItem();
    item->setProperty("source", name);
    QVERIFY(!item->property("valid").toBool());
    QVERIFY(imageIsEmpty(grabImage(item)));
}

void IconItemTest::usesPlasmaTheme()
{
    Plasma::Theme theme;
    if (!theme.themeName().startsWith("breeze")) {
        QSKIP("Current Plasma theme is not Breeze.");
    }

    // usesPlasmaTheme = true (default)
    QQuickItem *item1 = createIconItem();
    item1->setProperty("source", "konversation");
    QVERIFY(item1->property("valid").toBool());

    Plasma::Svg svg;
    svg.setContainsMultipleImages(true);
    svg.setImagePath("icons/konversation");

    QImage img1 = grabImage(item1);
    QImage img2 = svg.image(QSize(item1->width(), item1->height()), "konversation");
    QVERIFY(!imageIsEmpty(img1));
    QVERIFY(!imageIsEmpty(img2));
    QCOMPARE(img1, img2);

    // usesPlasmaTheme = false
    QQuickItem *item2 = createIconItem();
    item2->setProperty("usesPlasmaTheme", false);
    item2->setProperty("source", "konversation");

    img1 = grabImage(item2);
    // This depends on konversation icon being different in Plasma Breeze theme
    // and normal Breeze icon theme
    QVERIFY(img1 != img2);
}

void IconItemTest::animation()
{
    // animated = true (default)
    QQuickItem *item1 = createIconItem();
    item1->setProperty("source", "user-away");
    // first icon is not animated
    QImage userAwayImg = grabImage(item1);

    item1->setProperty("source", "user-busy");
    grabImage(item1);
    item1->setProperty("source", "user-away");
    // animation from user-busy -> user-away
    QVERIFY(userAwayImg != grabImage(item1));

    // animated = false
    QQuickItem *item2 = createIconItem();
    item2->setProperty("animated", false);
    item2->setProperty("source", "user-busy");
    QImage userBusyImg = grabImage(item2);

    item2->setProperty("source", "user-away");
    QCOMPARE(userAwayImg, grabImage(item2));

    item2->setProperty("source", "user-busy");
    QCOMPARE(userBusyImg, grabImage(item2));
}

void IconItemTest::animationAfterHide()
{
    QEXPECT_FAIL("", "Needs 'no animation after hide' patch", Abort);

    QQuickItem *item1 = createIconItem();
    QQuickItem *item2 = createIconItem();
    item1->setProperty("source", "user-away");
    item2->setProperty("source", "user-busy");
    // first icon is not animated
    QImage userAwayImg = grabImage(item1);
    QImage userBusyImg = grabImage(item2);

    item1->setProperty("source", "user-busy");
    grabImage(item1);
    item1->setProperty("visible", "false");
    item1->setProperty("visible", "true");
    item1->setProperty("source", "user-away");
    // icon was hidden, no animation
    QCOMPARE(userAwayImg, grabImage(item1));

    item1->setProperty("source", "user-busy");
    QVERIFY(userBusyImg != grabImage(item1));
}

void IconItemTest::bug_359388()
{
    QString name("bug359388");
    KIconLoader iconLoader("tst_plasma-framework");
    if (iconLoader.hasIcon(name)) {
        QSKIP("Current icon theme has 'bug359388' icon.");
    }

    iconLoader.addAppDir("tst_plasma-framework", QFINDTESTDATA("data/icons"));
    QIcon customThemeIcon(new KIconEngine(name, &iconLoader));

    QQuickItem *item1 = createIconItem();
    item1->setProperty("source", customThemeIcon);
    QVERIFY(item1->property("valid").toBool());

    QQuickItem *item2 = createIconItem();
    item2->setProperty("source", QIcon(QFINDTESTDATA("data/icons/hicolor/22x22/apps/" + name + ".svg")));
    QVERIFY(item2->property("valid").toBool());

    QCOMPARE(grabImage(item1), grabImage(item2));
}

QTEST_MAIN(IconItemTest)