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#include <qtest.h>
#include "../../../shared/util.h"
#include <QtDeclarative/qmlengine.h>
#include <QFile>
#include <QtDeclarative/qmlview.h>
#include <QFxTextInput>
#include <QDebug>

class tst_qfxtextinput : public QObject

{
    Q_OBJECT
public:
    tst_qfxtextinput();

private slots:
    void text();
    void width();
    void font();
    void color();
    void selection();

    void maxLength();
    void masks();
    void validators();

    void cursorDelegate();
    void navigation();

private:
    void simulateKey(QmlView *, int key);
    QmlView *createView(const QString &filename);

    QmlEngine engine;
    QStringList standard;
    QStringList colorStrings;
};

tst_qfxtextinput::tst_qfxtextinput()
{
    standard << "the quick brown fox jumped over the lazy dog"
        << "It's supercalifragisiticexpialidocious!"
        << "Hello, world!";

    colorStrings << "aliceblue"
                 << "antiquewhite"
                 << "aqua"
                 << "darkkhaki"
                 << "darkolivegreen"
                 << "dimgray"
                 << "palevioletred"
                 << "lightsteelblue"
                 << "#000000"
                 << "#AAAAAA"
                 << "#FFFFFF"
                 << "#2AC05F";
}

void tst_qfxtextinput::text()
{
    {
        QmlComponent textinputComponent(&engine, "import Qt 4.6\nTextInput {  text: \"\"  }", QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->text(), QString(""));
    }

    for (int i = 0; i < standard.size(); i++)
    {
        QString componentStr = "import Qt 4.6\nTextInput { text: \"" + standard.at(i) + "\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->text(), standard.at(i));
    }

}

void tst_qfxtextinput::width()
{
    // uses Font metrics to find the width for standard
    {
        QmlComponent textinputComponent(&engine, "import Qt 4.6\nTextInput {  text: \"\" }", QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->width(), 1.);//1 for the cursor
    }

    for (int i = 0; i < standard.size(); i++)
    {
        QFont f;
        QFontMetrics fm(f);
        int metricWidth = fm.size(Qt::TextExpandTabs && Qt::TextShowMnemonic, standard.at(i)).width();

        QString componentStr = "import Qt 4.6\nTextInput { text: \"" + standard.at(i) + "\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->width(), qreal(metricWidth) + 1.);//1 for the cursor
    }
}

void tst_qfxtextinput::font()
{
    //test size, then bold, then italic, then family
    { 
        QString componentStr = "import Qt 4.6\nTextInput {  font.pointSize: 40; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->font().pointSize(), 40);
        QCOMPARE(textinputObject->font().bold(), false);
        QCOMPARE(textinputObject->font().italic(), false);
    }

    { 
        QString componentStr = "import Qt 4.6\nTextInput {  font.bold: true; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->font().bold(), true);
        QCOMPARE(textinputObject->font().italic(), false);
    }

    { 
        QString componentStr = "import Qt 4.6\nTextInput {  font.italic: true; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->font().italic(), true);
        QCOMPARE(textinputObject->font().bold(), false);
    }
 
    { 
        QString componentStr = "import Qt 4.6\nTextInput {  font.family: \"Helvetica\"; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->font().family(), QString("Helvetica"));
        QCOMPARE(textinputObject->font().bold(), false);
        QCOMPARE(textinputObject->font().italic(), false);
    }

    { 
        QString componentStr = "import Qt 4.6\nTextInput {  font.family: \"\"; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->font().family(), QString(""));
    }
}

void tst_qfxtextinput::color()
{
    //test style
    for (int i = 0; i < colorStrings.size(); i++)
    { 
        QString componentStr = "import Qt 4.6\nTextInput {  color: \"" + colorStrings.at(i) + "\"; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());
        //qDebug() << "textinputObject: " << textinputObject->color() << "vs. " << QColor(colorStrings.at(i));
        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->color(), QColor(colorStrings.at(i)));
    }

    {
        QString colorStr = "#AA001234";
        QColor testColor("#001234");
        testColor.setAlpha(170);

        QString componentStr = "import Qt 4.6\nTextInput {  color: \"" + colorStr + "\"; text: \"Hello World\" }";
        QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
        QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());

        QVERIFY(textinputObject != 0);
        QCOMPARE(textinputObject->color(), testColor);
    }
}

void tst_qfxtextinput::selection()
{
    QString testStr = standard[0];
    QString componentStr = "import Qt 4.6\nTextInput {  text: \""+ testStr +"\"; }";
    QmlComponent textinputComponent(&engine, componentStr.toLatin1(), QUrl());
    QFxTextInput *textinputObject = qobject_cast<QFxTextInput*>(textinputComponent.create());
    QVERIFY(textinputObject != 0);


    //Test selection follows cursor
    for(int i=0; i<= testStr.size(); i++) {
        textinputObject->setCursorPosition(i);
        QCOMPARE(textinputObject->cursorPosition(), i);
        QCOMPARE(textinputObject->selectionStart(), i);
        QCOMPARE(textinputObject->selectionEnd(), i);
        QVERIFY(textinputObject->selectedText().isNull());
    }

    textinputObject->setCursorPosition(0);
    QVERIFY(textinputObject->cursorPosition() == 0);
    QVERIFY(textinputObject->selectionStart() == 0);
    QVERIFY(textinputObject->selectionEnd() == 0);
    QVERIFY(textinputObject->selectedText().isNull());

    //Test selection
    for(int i=0; i<= testStr.size(); i++) {
        textinputObject->setSelectionEnd(i);
        QCOMPARE(testStr.mid(0,i), textinputObject->selectedText());
    }
    for(int i=0; i<= testStr.size(); i++) {
        textinputObject->setSelectionStart(i);
        QCOMPARE(testStr.mid(i,testStr.size()-i), textinputObject->selectedText());
    }

    textinputObject->setCursorPosition(0);
    QVERIFY(textinputObject->cursorPosition() == 0);
    QVERIFY(textinputObject->selectionStart() == 0);
    QVERIFY(textinputObject->selectionEnd() == 0);
    QVERIFY(textinputObject->selectedText().isNull());

    for(int i=0; i< testStr.size(); i++) {
        textinputObject->setSelectionStart(i);
        QCOMPARE(textinputObject->selectionEnd(), i);
        QCOMPARE(testStr.mid(i,0), textinputObject->selectedText());
        textinputObject->setSelectionEnd(i+1);
        QCOMPARE(textinputObject->selectionStart(), i);
        QCOMPARE(testStr.mid(i,1), textinputObject->selectedText());
    }

    for(int i= testStr.size() - 1; i>0; i--) {
        textinputObject->setSelectionEnd(i);
        QCOMPARE(testStr.mid(i,0), textinputObject->selectedText());
        textinputObject->setSelectionStart(i-1);
        QCOMPARE(testStr.mid(i-1,1), textinputObject->selectedText());
    }

    //Test Error Ignoring behaviour
    textinputObject->setCursorPosition(0);
    QVERIFY(textinputObject->selectedText().isNull());
    textinputObject->setSelectionStart(-10);
    QVERIFY(textinputObject->selectedText().isNull());
    textinputObject->setSelectionStart(100);
    QVERIFY(textinputObject->selectedText().isNull());
    textinputObject->setSelectionEnd(-10);
    QVERIFY(textinputObject->selectedText().isNull());
    textinputObject->setSelectionEnd(100);
    QVERIFY(textinputObject->selectedText().isNull());
    textinputObject->setSelectionStart(0);
    textinputObject->setSelectionEnd(10);
    QVERIFY(textinputObject->selectedText().size() == 10);
    textinputObject->setSelectionStart(-10);
    QVERIFY(textinputObject->selectedText().size() == 10);
    textinputObject->setSelectionStart(100);
    QVERIFY(textinputObject->selectedText().size() == 10);
    textinputObject->setSelectionEnd(-10);
    QVERIFY(textinputObject->selectedText().size() == 10);
    textinputObject->setSelectionEnd(100);
    QVERIFY(textinputObject->selectedText().size() == 10);
}

void tst_qfxtextinput::maxLength()
{
    QmlView *canvas = createView(SRCDIR "/data/navigation.qml");
    canvas->execute();
    canvas->show();

    QVERIFY(canvas->root() != 0);

    QFxItem *input = qobject_cast<QFxItem *>(qvariant_cast<QObject *>(canvas->root()->property("myInput")));

    QVERIFY(input != 0);
    //TODO: Me
}

void tst_qfxtextinput::masks()
{
    QmlView *canvas = createView(SRCDIR "/data/navigation.qml");
    canvas->execute();
    canvas->show();

    QVERIFY(canvas->root() != 0);

    QFxItem *input = qobject_cast<QFxItem *>(qvariant_cast<QObject *>(canvas->root()->property("myInput")));

    QVERIFY(input != 0);
    //TODO: Me
}

void tst_qfxtextinput::validators()
{
    QmlView *canvas = createView(SRCDIR "/data/navigation.qml");
    canvas->execute();
    canvas->show();

    QVERIFY(canvas->root() != 0);

    QFxItem *input = qobject_cast<QFxItem *>(qvariant_cast<QObject *>(canvas->root()->property("myInput")));

    QVERIFY(input != 0);
    //TODO: Me
}

/*
TextInput element should only handle left/right keys until the cursor reaches
the extent of the text, then they should ignore the keys.
*/
void tst_qfxtextinput::navigation()
{
    QmlView *canvas = createView(SRCDIR "/data/navigation.qml");
    canvas->execute();
    canvas->show();

    QVERIFY(canvas->root() != 0);

    QFxItem *input = qobject_cast<QFxItem *>(qvariant_cast<QObject *>(canvas->root()->property("myInput")));

    QVERIFY(input != 0);
    QTRY_VERIFY(input->hasFocus() == true);
    simulateKey(canvas, Qt::Key_Left);
    QVERIFY(input->hasFocus() == false);
    simulateKey(canvas, Qt::Key_Right);
    QVERIFY(input->hasFocus() == true);
    simulateKey(canvas, Qt::Key_Right);
    QVERIFY(input->hasFocus() == false);
    simulateKey(canvas, Qt::Key_Left);
    QVERIFY(input->hasFocus() == true);
}

void tst_qfxtextinput::cursorDelegate()
{
    //TODO:Get the QFxTextInput test passing first
}

void tst_qfxtextinput::simulateKey(QmlView *view, int key)
{
    QKeyEvent press(QKeyEvent::KeyPress, key, 0);
    QKeyEvent release(QKeyEvent::KeyRelease, key, 0);

    QApplication::sendEvent(view, &press);
    QApplication::sendEvent(view, &release);
}

QmlView *tst_qfxtextinput::createView(const QString &filename)
{
    QmlView *canvas = new QmlView(0);

    QFile file(filename);
    file.open(QFile::ReadOnly);
    QString xml = file.readAll();
    canvas->setQml(xml, filename);

    return canvas;
}

QTEST_MAIN(tst_qfxtextinput)

#include "tst_qfxtextinput.moc"