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****************************************************************************/

#include "simplewidgets.h"

#include <qabstractbutton.h>

#include <qcheckbox.h>

#include <qpushbutton.h>

#include <qprogressbar.h>

#include <qradiobutton.h>

#include <qtoolbutton.h>

#include <qlabel.h>

#include <qgroupbox.h>

#include <qlcdnumber.h>

#include <qlineedit.h>

#include <qstyle.h>

#include <qstyleoption.h>

#ifdef Q_OS_MAC

#include <qfocusframe.h>

#endif

QT_BEGIN_NAMESPACE

#ifndef QT_NO_ACCESSIBILITY

using namespace QAccessible2;

extern QList<QWidget*> childWidgets(const QWidget *widget, bool includeTopLevel = false);

QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);

QString Q_GUI_EXPORT qt_accHotKey(const QString &text);

/*!

  \class QAccessibleButton

  \brief The QAccessibleButton class implements the QAccessibleInterface for button type widgets.

  \internal

  \ingroup accessibility

*/

/*!

  Creates a QAccessibleButton object for \a w.

  \a role is propagated to the QAccessibleWidgetEx constructor.

*/

QAccessibleButton::QAccessibleButton(QWidget *w, Role role)

: QAccessibleWidgetEx(w, role)

{

    Q_ASSERT(button());

    if (button()->isCheckable())

        addControllingSignal(QLatin1String("toggled(bool)"));

    else

        addControllingSignal(QLatin1String("clicked()"));

}

/*! Returns the button. */

QAbstractButton *QAccessibleButton::button() const

{

    return qobject_cast<QAbstractButton*>(object());

}

/*! \reimp */

QString QAccessibleButton::actionText(int action, Text text, int child) const

{

    if (child)

        return QString();

    if (text == Name) switch (action) {

    case Press:

    case DefaultAction: // press, checking or open

        switch (role(0)) {

        case ButtonMenu:

            return QPushButton::tr("Open");

        case CheckBox:

            {

                if (state(child) & Checked)

                    return QCheckBox::tr("Uncheck");

                QCheckBox *cb = qobject_cast<QCheckBox*>(object());

                if (!cb || !cb->isTristate() || cb->checkState() == Qt::PartiallyChecked)

                    return QCheckBox::tr("Check");

                return QCheckBox::tr("Toggle");

            }

            break;

        case RadioButton:

            return QRadioButton::tr("Check");

        default:

            break;

        }

        break;

    }

    return QAccessibleWidgetEx::actionText(action, text, child);

}

/*! \reimp */

bool QAccessibleButton::doAction(int action, int child, const QVariantList &params)

{

    if (child || !widget()->isEnabled() || !widget()->isVisible())

        return false;

    switch (action) {

    case DefaultAction:

    case Press:

        {

#ifndef QT_NO_MENU

            QPushButton *pb = qobject_cast<QPushButton*>(object());

            if (pb && pb->menu())

                pb->showMenu();

            else

#endif

                button()->animateClick();

        }

        return true;

    }

    return QAccessibleWidgetEx::doAction(action, child, params);

}

/*! \reimp */

QString QAccessibleButton::text(Text t, int child) const

{

    QString str;

    if (!widget()->isVisible())

        return str;

    switch (t) {

    case Accelerator:

        {

#ifndef QT_NO_SHORTCUT

            QPushButton *pb = qobject_cast<QPushButton*>(object());

            if (pb && pb->isDefault())

                str = (QString)QKeySequence(Qt::Key_Enter);

#endif

            if (str.isEmpty())

                str = qt_accHotKey(button()->text());

        }

        break;

    case Name:

        str = widget()->accessibleName();

        if (str.isEmpty())

            str = button()->text();

        break;

    default:

        break;

    }

    if (str.isEmpty())

        str = QAccessibleWidgetEx::text(t, child);;

    return qt_accStripAmp(str);

}

/*! \reimp */

QAccessible::State QAccessibleButton::state(int child) const

{

    State state = QAccessibleWidgetEx::state(child);

    QAbstractButton *b = button();

    QCheckBox *cb = qobject_cast<QCheckBox *>(b);

    if (b->isChecked())

        state |= Checked;

    else if (cb && cb->checkState() == Qt::PartiallyChecked)

        state |= Mixed;

    if (b->isDown())

        state |= Pressed;

    QPushButton *pb = qobject_cast<QPushButton*>(b);

    if (pb) {

        if (pb->isDefault())

            state |= DefaultButton;

#ifndef QT_NO_MENU

        if (pb->menu())

            state |= HasPopup;

#endif

    }

    return state;

}

int QAccessibleButton::actionCount()

{

    return 1;

}

void QAccessibleButton::doAction(int actionIndex)

{

    switch (actionIndex) {

    case 0:

        button()->click();

        break;

    }

}

QString QAccessibleButton::description(int actionIndex)

{

    switch (actionIndex) {

    case 0:

        return QLatin1String("Clicks the button.");

    default:

        return QString();

    }

}

QString QAccessibleButton::name(int actionIndex)

{

    switch (actionIndex) {

    case 0:

        return QLatin1String("Press");

    default:

        return QString();

    }

}

QString QAccessibleButton::localizedName(int actionIndex)

{

    switch (actionIndex) {

    case 0:

        return tr("Press");

    default:

        return QString();

    }

}

QStringList QAccessibleButton::keyBindings(int actionIndex)

{

    switch (actionIndex) {

#ifdef QT_NO_SHORTCUT

    case 0:

        return button()->shortcut().toString();

#endif

    default:

        return QStringList();

    }

}

#ifndef QT_NO_TOOLBUTTON

/*!

  \class QAccessibleToolButton

  \brief The QAccessibleToolButton class implements the QAccessibleInterface for tool buttons.

  \internal

  \ingroup accessibility

*/

/*!

    \enum QAccessibleToolButton::ToolButtonElements

    This enum identifies the components of the tool button.

    \value ToolButtonSelf The tool button as a whole.

    \value ButtonExecute The button.

    \value ButtonDropMenu The drop down menu.

*/

/*!

  Creates a QAccessibleToolButton object for \a w.

  \a role is propagated to the QAccessibleWidgetEx constructor.

*/

QAccessibleToolButton::QAccessibleToolButton(QWidget *w, Role role)

: QAccessibleButton(w, role)

{

    Q_ASSERT(toolButton());

}

/*! Returns the button. */

QToolButton *QAccessibleToolButton::toolButton() const

{

    return qobject_cast<QToolButton*>(object());

}

/*!

    Returns true if this tool button is a split button.

*/

bool QAccessibleToolButton::isSplitButton() const

{

#ifndef QT_NO_MENU

    return toolButton()->menu() && toolButton()->popupMode() == QToolButton::MenuButtonPopup;

#else

    return false;

#endif

}

/*! \reimp */

QAccessible::Role QAccessibleToolButton::role(int child) const

{

    if (isSplitButton()) switch(child) {

    case ButtonExecute:

        return PushButton;

    case ButtonDropMenu:

        return ButtonMenu;

    }

    return QAccessibleButton::role(child);

}

/*! \reimp */

QAccessible::State QAccessibleToolButton::state(int child) const

{

    QAccessible::State st = QAccessibleButton::state(child);

    if (toolButton()->autoRaise())

        st |= HotTracked;

#ifndef QT_NO_MENU

    if (toolButton()->menu() && child != ButtonExecute)

        st |= HasPopup;

#endif

    return st;

}

/*! \reimp */

int QAccessibleToolButton::childCount() const

{

    if (!toolButton()->isVisible())

        return 0;

    return isSplitButton() ? ButtonDropMenu : 0;

}

/*!

    \internal

    Returns the rectangle occupied by this button, depending on \a

    child.

*/

QRect QAccessibleToolButton::rect(int child) const

{

    if (!toolButton()->isVisible())

        return QRect();

    if (!child)

        return QAccessibleButton::rect(child);

    QStyleOptionToolButton opt;

    opt.init(widget());

    QRect subrect = widget()->style()->subControlRect(QStyle::CC_ToolButton, &opt,

                                                      QStyle::SC_ToolButtonMenu, toolButton());

    if (child == ButtonExecute)

        subrect = QRect(0, 0, subrect.x(), widget()->height());

    QPoint ntl = widget()->mapToGlobal(subrect.topLeft());

    subrect.moveTopLeft(ntl);

    return subrect;

}

/*!

    \internal

    Returns the button's text label, depending on the text \a t, and

    the \a child.

*/

QString QAccessibleToolButton::text(Text t, int child) const

{

    QString str;

    if (!toolButton()->isVisible())

        return str;

    switch (t) {

    case Name:

        str = toolButton()->text();

        if (str.isEmpty())

            str = toolButton()->text();

        break;

    default:

        break;

    }

    if (str.isEmpty())

        str = QAccessibleButton::text(t, child);;

    return qt_accStripAmp(str);

}

/*!

    \internal

    Returns the number of actions which is 0, 1, or 2, in part

    depending on \a child.

*/

int QAccessibleToolButton::actionCount(int child) const

{

    // each subelement has one action

    if (child)

        return isSplitButton() ? 1 : 0;

    int ac = widget()->focusPolicy() != Qt::NoFocus ? 1 : 0;

    // button itself has two actions if a menu button

#ifndef QT_NO_MENU

    return ac + (toolButton()->menu() ? 2 : 1);

#else

    return ac + 1;

#endif

}

/*!

    \internal

    If \a text is \c Name, then depending on the \a child or the \a

    action, an action text is returned. This is a translated string

    which in English is one of "Press", "Open", or "Set Focus". If \a

    text is not \c Name, an empty string is returned.

*/

QString QAccessibleToolButton::actionText(int action, Text text, int child) const

{

    if (text == Name) switch(child) {

    case ButtonExecute:

        return QToolButton::tr("Press");

    case ButtonDropMenu:

        return QToolButton::tr("Open");

    default:

        switch(action) {

        case 0:

            return QToolButton::tr("Press");

        case 1:

#ifndef QT_NO_MENU

            if (toolButton()->menu())

                return QToolButton::tr("Open");

#endif

            //fall through

        case 2:

            return QLatin1String("Set Focus");

        }

    }

    return QString();

}

/*!

    \internal

*/

bool QAccessibleToolButton::doAction(int action, int child, const QVariantList &params)

{

    if (!widget()->isEnabled() || !widget()->isVisible())

        return false;

    if (action == 1 || child == ButtonDropMenu) {

        if(!child)

            toolButton()->setDown(true);

#ifndef QT_NO_MENU

        toolButton()->showMenu();

#endif

        return true;

    }

    return QAccessibleButton::doAction(action, 0, params);

}

#endif // QT_NO_TOOLBUTTON

/*!

  \class QAccessibleDisplay

  \brief The QAccessibleDisplay class implements the QAccessibleInterface for widgets that display information.

  \internal

  \ingroup accessibility

*/

/*!

  Constructs a QAccessibleDisplay object for \a w.

  \a role is propagated to the QAccessibleWidgetEx constructor.

*/

QAccessibleDisplay::QAccessibleDisplay(QWidget *w, Role role)

: QAccessibleWidgetEx(w, role)

{

}

/*! \reimp */

QAccessible::Role QAccessibleDisplay::role(int child) const

{

    QLabel *l = qobject_cast<QLabel*>(object());

    if (l) {

        if (l->pixmap())

            return Graphic;

#ifndef QT_NO_PICTURE

        if (l->picture())

            return Graphic;

#endif

#ifndef QT_NO_MOVIE

        if (l->movie())

            return Animation;

#endif

#ifndef QT_NO_PROGRESSBAR

    } else if (qobject_cast<QProgressBar*>(object())) {

        return ProgressBar;

#endif

    }

    return QAccessibleWidgetEx::role(child);

}

/*! \reimp */

QString QAccessibleDisplay::text(Text t, int child) const

{

    QString str;

    if (!widget()->isVisible())

        return str;

    switch (t) {

    case Name:

        str = widget()->accessibleName();

        if (str.isEmpty()) {

            if (qobject_cast<QLabel*>(object())) {

                str = qobject_cast<QLabel*>(object())->text();

#ifndef QT_NO_GROUPBOX

            } else if (qobject_cast<QGroupBox*>(object())) {

                str = qobject_cast<QGroupBox*>(object())->title();

#endif

#ifndef QT_NO_LCDNUMBER