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Diffstat (limited to 'src/quicktemplates/qquickdialogbuttonbox.cpp')
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diff --git a/src/quicktemplates/qquickdialogbuttonbox.cpp b/src/quicktemplates/qquickdialogbuttonbox.cpp new file mode 100644 index 0000000000..b7c486c472 --- /dev/null +++ b/src/quicktemplates/qquickdialogbuttonbox.cpp @@ -0,0 +1,849 @@ +// Copyright (C) 2017 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only + +#include "qquickdialogbuttonbox_p.h" +#include "qquickdialogbuttonbox_p_p.h" +#include "qquickabstractbutton_p.h" +#include "qquickbutton_p.h" +#include "qquickdialog_p_p.h" + +#include <QtCore/qpointer.h> +#include <QtGui/private/qguiapplication_p.h> +#include <QtGui/qpa/qplatformtheme.h> +#include <QtQml/qqmlengine.h> +#include <QtQml/qqmlcontext.h> +#include <QtQml/qqmlcomponent.h> + +#include <algorithm> + +QT_BEGIN_NAMESPACE + +/*! + \qmltype DialogButtonBox + \inherits Container +//! \instantiates QQuickDialogButtonBox + \inqmlmodule QtQuick.Controls + \ingroup qtquickcontrols-dialogs + \brief A button box used in dialogs. + \since 5.8 + + Dialogs and message boxes typically present buttons in an order that + conforms to the interface guidelines for that platform. Invariably, + different platforms have their dialog buttons in different orders. + DialogButtonBox allows a developer to add buttons to it and will + automatically use the appropriate order for the user's platform. + + Most buttons for a dialog follow certain roles. Such roles include: + + \list + \li Accepting or rejecting the dialog. + \li Asking for help. + \li Performing actions on the dialog itself (such as resetting fields or + applying changes). + \endlist + + There can also be alternate ways of dismissing the dialog which may cause + destructive results. + + Most dialogs have buttons that can almost be considered standard (e.g. + \uicontrol OK and \uicontrol Cancel buttons). It is sometimes convenient + to create these buttons in a standard way. + + There are a couple ways of using DialogButtonBox. One way is to specify + the standard buttons (e.g. \uicontrol OK, \uicontrol Cancel, \uicontrol Save) + and let the button box setup the buttons. + + \image qtquickcontrols-dialogbuttonbox.png + + \snippet qtquickcontrols-dialogbuttonbox.qml 1 + + Alternatively, buttons and their roles can be specified by hand: + + \snippet qtquickcontrols-dialogbuttonbox-attached.qml 1 + + You can also mix and match normal buttons and standard buttons. + + When a button is clicked in the button box, the \l clicked() signal is + emitted for the actual button that is pressed. In addition, the + following signals are automatically emitted when a button with the + respective role(s) is pressed: + + \table + \header + \li Role + \li Signal + \row + \li \c AcceptRole, \c YesRole + \li \l accepted() + \row + \li \c ApplyRole + \li \l applied() + \row + \li \c DiscardRole + \li \l discarded() + \row + \li \c HelpRole + \li \l helpRequested() + \row + \li \c RejectRole, \c NoRole + \li \l rejected() + \row + \li \c ResetRole + \li \l reset() + \endtable + + \sa Dialog +*/ + +/*! + \qmlsignal QtQuick.Controls::DialogButtonBox::accepted() + + This signal is emitted when a button defined with the \c AcceptRole or + \c YesRole is clicked. + + \sa rejected(), clicked(), helpRequested() +*/ + +/*! + \qmlsignal QtQuick.Controls::DialogButtonBox::rejected() + + This signal is emitted when a button defined with the \c RejectRole or + \c NoRole is clicked. + + \sa accepted(), helpRequested(), clicked() +*/ + +/*! + \since QtQuick.Controls 2.3 (Qt 5.10) + \qmlsignal QtQuick.Controls::DialogButtonBox::applied() + + This signal is emitted when a button defined with the \c ApplyRole is + clicked. + + \sa discarded(), reset() +*/ + +/*! + \since QtQuick.Controls 2.3 (Qt 5.10) + \qmlsignal QtQuick.Controls::DialogButtonBox::reset() + + This signal is emitted when a button defined with the \c ResetRole is + clicked. + + \sa discarded(), applied() +*/ + +/*! + \since QtQuick.Controls 2.3 (Qt 5.10) + \qmlsignal QtQuick.Controls::DialogButtonBox::discarded() + + This signal is emitted when a button defined with the \c DiscardRole is + clicked. + + \sa reset(), applied() +*/ + +/*! + \qmlsignal QtQuick.Controls::DialogButtonBox::helpRequested() + + This signal is emitted when a button defined with the \c HelpRole is clicked. + + \sa accepted(), rejected(), clicked() +*/ + +/*! + \qmlsignal QtQuick.Controls::DialogButtonBox::clicked(AbstractButton button) + + This signal is emitted when a \a button inside the button box is clicked. + + \sa accepted(), rejected(), helpRequested() +*/ + +static QPlatformDialogHelper::ButtonLayout platformButtonLayout() +{ + return QGuiApplicationPrivate::platformTheme()->themeHint(QPlatformTheme::DialogButtonBoxLayout).value<QPlatformDialogHelper::ButtonLayout>(); +} + +void QQuickDialogButtonBoxPrivate::itemImplicitWidthChanged(QQuickItem *item) +{ + QQuickContainerPrivate::itemImplicitWidthChanged(item); + if (item == contentItem) + resizeContent(); + else + updateImplicitContentWidth(); +} + +void QQuickDialogButtonBoxPrivate::itemImplicitHeightChanged(QQuickItem *item) +{ + QQuickContainerPrivate::itemImplicitHeightChanged(item); + if (item == contentItem) + resizeContent(); + else + updateImplicitContentHeight(); +} + +// adapted from QStyle::alignedRect() +static QRectF alignedRect(Qt::LayoutDirection direction, Qt::Alignment alignment, const QSizeF &size, const QRectF &rectangle) +{ + alignment = QGuiApplicationPrivate::visualAlignment(direction, alignment); + qreal x = rectangle.x(); + qreal y = rectangle.y(); + qreal w = size.width(); + qreal h = size.height(); + if ((alignment & Qt::AlignVCenter) == Qt::AlignVCenter || (alignment & Qt::AlignVertical_Mask) == 0) + y += (rectangle.size().height() - h) / 2; + else if ((alignment & Qt::AlignBottom) == Qt::AlignBottom) + y += rectangle.size().height() - h; + if ((alignment & Qt::AlignRight) == Qt::AlignRight) + x += rectangle.size().width() - w; + else if ((alignment & Qt::AlignHCenter) == Qt::AlignHCenter) + x += (rectangle.size().width() - w) / 2; + return QRectF(x, y, w, h); +} + +void QQuickDialogButtonBoxPrivate::resizeContent() +{ + Q_Q(QQuickDialogButtonBox); + if (!contentItem || !contentModel) + return; + + QRectF geometry = q->boundingRect().adjusted(q->leftPadding(), q->topPadding(), -q->rightPadding(), -q->bottomPadding()); + if (alignment != 0) + geometry = alignedRect(q->isMirrored() ? Qt::RightToLeft : Qt::LeftToRight, alignment, QSizeF(contentWidth, contentHeight), geometry); + + contentItem->setPosition(geometry.topLeft()); + contentItem->setSize(geometry.size()); +} + +void QQuickDialogButtonBoxPrivate::updateLayout() +{ + Q_Q(QQuickDialogButtonBox); + const int count = contentModel->count(); + if (count <= 0) + return; + + const int halign = alignment & Qt::AlignHorizontal_Mask; + const int valign = alignment & Qt::AlignVertical_Mask; + + QList<QQuickAbstractButton *> buttons; + const qreal cw = (alignment & Qt::AlignHorizontal_Mask) == 0 ? q->availableWidth() : contentWidth; + const qreal itemWidth = (cw - qMax(0, count - 1) * spacing) / count; + + for (int i = 0; i < count; ++i) { + QQuickItem *item = q->itemAt(i); + if (item) { + QQuickItemPrivate *p = QQuickItemPrivate::get(item); + if (!p->widthValid()) { + if (!halign) + item->setWidth(itemWidth); + else + item->resetWidth(); + if (!valign) + item->setHeight(contentHeight); + else + item->resetHeight(); + p->widthValidFlag = false; + } + } + buttons += static_cast<QQuickAbstractButton *>(item); + } + + struct ButtonLayout { + ButtonLayout(QPlatformDialogHelper::ButtonLayout layout) + : m_layout(QPlatformDialogHelper::buttonLayout(Qt::Horizontal, layout)) + { + } + + bool operator()(QQuickAbstractButton *first, QQuickAbstractButton *second) + { + const QPlatformDialogHelper::ButtonRole firstRole = QQuickDialogPrivate::buttonRole(first); + const QPlatformDialogHelper::ButtonRole secondRole = QQuickDialogPrivate::buttonRole(second); + + if (firstRole != secondRole && firstRole != QPlatformDialogHelper::InvalidRole && secondRole != QPlatformDialogHelper::InvalidRole) { + const int *l = m_layout; + while (*l != QPlatformDialogHelper::EOL) { + // Unset the Reverse flag. + const int role = (*l & ~QPlatformDialogHelper::Reverse); + if (role == firstRole) + return true; + if (role == secondRole) + return false; + ++l; + } + } + + if (firstRole == secondRole) + return false; + + return firstRole != QPlatformDialogHelper::InvalidRole; + } + const int *m_layout; + }; + + std::stable_sort(buttons.begin(), buttons.end(), ButtonLayout(static_cast<QPlatformDialogHelper::ButtonLayout>(buttonLayout))); + + for (int i = 0; i < buttons.size() - 1; ++i) + q->insertItem(i, buttons.at(i)); +} + +qreal QQuickDialogButtonBoxPrivate::getContentWidth() const +{ + Q_Q(const QQuickDialogButtonBox); + if (!contentModel) + return 0; + + const int count = contentModel->count(); + const qreal totalSpacing = qMax(0, count - 1) * spacing; + qreal totalWidth = totalSpacing; + qreal maxWidth = 0; + for (int i = 0; i < count; ++i) { + QQuickItem *item = q->itemAt(i); + if (item) { + totalWidth += item->implicitWidth(); + maxWidth = qMax(maxWidth, item->implicitWidth()); + } + } + if ((alignment & Qt::AlignHorizontal_Mask) == 0) + totalWidth = qMax(totalWidth, count * maxWidth + totalSpacing); + return totalWidth; +} + +qreal QQuickDialogButtonBoxPrivate::getContentHeight() const +{ + Q_Q(const QQuickDialogButtonBox); + if (!contentModel) + return 0; + + const int count = contentModel->count(); + qreal maxHeight = 0; + for (int i = 0; i < count; ++i) { + QQuickItem *item = q->itemAt(i); + if (item) + maxHeight = qMax(maxHeight, item->implicitHeight()); + } + return maxHeight; +} + +void QQuickDialogButtonBoxPrivate::handleClick() +{ + Q_Q(QQuickDialogButtonBox); + QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(q->sender()); + if (!button) + return; + + // Can't fetch this *after* emitting clicked, as clicked may destroy the button + // or change its role. Now changing the role is not possible yet, but arguably + // both clicked and accepted/rejected/etc. should be emitted "atomically" + // depending on whatever role the button had at the time of the click. + const QPlatformDialogHelper::ButtonRole role = QQuickDialogPrivate::buttonRole(button); + QPointer<QQuickDialogButtonBox> guard(q); + + emit q->clicked(button); + + if (!guard) + return; + + switch (role) { + case QPlatformDialogHelper::AcceptRole: + case QPlatformDialogHelper::YesRole: + emit q->accepted(); + break; + case QPlatformDialogHelper::RejectRole: + case QPlatformDialogHelper::NoRole: + emit q->rejected(); + break; + case QPlatformDialogHelper::ApplyRole: + emit q->applied(); + break; + case QPlatformDialogHelper::ResetRole: + emit q->reset(); + break; + case QPlatformDialogHelper::DestructiveRole: + emit q->discarded(); + break; + case QPlatformDialogHelper::HelpRole: + emit q->helpRequested(); + break; + default: + break; + } +} + +QString QQuickDialogButtonBoxPrivate::buttonText(QPlatformDialogHelper::StandardButton standardButton) +{ + return QPlatformTheme::removeMnemonics(QGuiApplicationPrivate::platformTheme()->standardButtonText(standardButton)); +} + +QQuickAbstractButton *QQuickDialogButtonBoxPrivate::createStandardButton(QPlatformDialogHelper::StandardButton standardButton) +{ + Q_Q(QQuickDialogButtonBox); + if (!delegate) + return nullptr; + + QQmlContext *creationContext = delegate->creationContext(); + if (!creationContext) + creationContext = qmlContext(q); + + QObject *object = delegate->beginCreate(creationContext); + QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton*>(object); + if (button) { + QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>(qmlAttachedPropertiesObject<QQuickDialogButtonBox>(button, true)); + QQuickDialogButtonBoxAttachedPrivate::get(attached)->standardButton = standardButton; + attached->setButtonRole(QPlatformDialogHelper::buttonRole(standardButton)); + button->setText(buttonText(standardButton)); + delegate->completeCreate(); + button->setParent(q); + return button; + } + + delete object; + return nullptr; +} + +void QQuickDialogButtonBoxPrivate::removeStandardButtons() +{ + Q_Q(QQuickDialogButtonBox); + int i = q->count() - 1; + while (i >= 0) { + QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(q->itemAt(i)); + if (button) { + QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>( + qmlAttachedPropertiesObject<QQuickDialogButtonBox>(button, false)); + if (attached) { + QQuickDialogButtonBoxAttachedPrivate *p = QQuickDialogButtonBoxAttachedPrivate::get(attached); + if (p->standardButton != QPlatformDialogHelper::NoButton) { + q->removeItem(button); + button->deleteLater(); + } + } + } + --i; + } +} + +void QQuickDialogButtonBoxPrivate::updateLanguage() +{ + Q_Q(QQuickDialogButtonBox); + int i = q->count() - 1; + while (i >= 0) { + QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(itemAt(i)); + if (button) { + QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>( + qmlAttachedPropertiesObject<QQuickDialogButtonBox>(button, true)); + const auto boxAttachedPrivate = QQuickDialogButtonBoxAttachedPrivate::get(attached); + const QPlatformDialogHelper::StandardButton standardButton = boxAttachedPrivate->standardButton; + // The button might be a custom one with explicitly specified text, so we shouldn't change it in that case. + if (standardButton != QPlatformDialogHelper::NoButton) { + button->setText(buttonText(standardButton)); + } + } + --i; + } +} + +QPlatformDialogHelper::StandardButton QQuickDialogButtonBoxPrivate::standardButton(QQuickAbstractButton *button) const { + QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>(qmlAttachedPropertiesObject<QQuickDialogButtonBox>(button, false)); + if (attached) + return QQuickDialogButtonBoxAttachedPrivate::get(attached)->standardButton; + else + return QPlatformDialogHelper::NoButton; +} + +QQuickDialogButtonBox::QQuickDialogButtonBox(QQuickItem *parent) + : QQuickContainer(*(new QQuickDialogButtonBoxPrivate), parent) +{ + Q_D(QQuickDialogButtonBox); + d->changeTypes |= QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight; + d->buttonLayout = platformButtonLayout(); + d->setSizePolicy(QLayoutPolicy::Preferred, QLayoutPolicy::Fixed); +} + +QQuickDialogButtonBox::~QQuickDialogButtonBox() +{ + Q_D(QQuickDialogButtonBox); + // QQuickContainerPrivate does call this, but as our type information has already been + // destroyed by that point (since this destructor has already run), it won't call our + // implementation. So, we need to make sure our implementation is called. If we don't do this, + // the listener we installed on the contentItem won't get removed, possibly resulting in + // heap-use-after-frees. + contentItemChange(nullptr, d->contentItem); +} + +/*! + \qmlproperty enumeration QtQuick.Controls::DialogButtonBox::position + + This property holds the position of the button box. + + \note If the button box is assigned as a header or footer of ApplicationWindow + or Page, the appropriate position is set automatically. + + Possible values: + \value DialogButtonBox.Header The button box is at the top, as a window or page header. + \value DialogButtonBox.Footer The button box is at the bottom, as a window or page footer. + + The default value is \c Footer. + + \sa Dialog::header, Dialog::footer +*/ +QQuickDialogButtonBox::Position QQuickDialogButtonBox::position() const +{ + Q_D(const QQuickDialogButtonBox); + return d->position; +} + +void QQuickDialogButtonBox::setPosition(Position position) +{ + Q_D(QQuickDialogButtonBox); + if (d->position == position) + return; + + d->position = position; + emit positionChanged(); +} + +/*! + \qmlproperty flags QtQuick.Controls::DialogButtonBox::alignment + + This property holds the alignment of the buttons. + + Possible values: + \value undefined The buttons are resized to fill the available space. + \value Qt.AlignLeft The buttons are aligned to the left. + \value Qt.AlignHCenter The buttons are horizontally centered. + \value Qt.AlignRight The buttons are aligned to the right. + \value Qt.AlignTop The buttons are aligned to the top. + \value Qt.AlignVCenter The buttons are vertically centered. + \value Qt.AlignBottom The buttons are aligned to the bottom. + + The default value is \c undefined. + + \note This property assumes a horizontal layout of the buttons. The + DialogButtonBox for the \l {iOS Style}{iOS style} uses a vertical layout + when there are more than two buttons, and if set to a value other than + \c undefined, the layout of its buttons will be done horizontally. +*/ +Qt::Alignment QQuickDialogButtonBox::alignment() const +{ + Q_D(const QQuickDialogButtonBox); + return d->alignment; +} + +void QQuickDialogButtonBox::setAlignment(Qt::Alignment alignment) +{ + Q_D(QQuickDialogButtonBox); + if (d->alignment == alignment) + return; + + d->alignment = alignment; + if (isComponentComplete()) { + d->resizeContent(); + polish(); + } + emit alignmentChanged(); +} + +void QQuickDialogButtonBox::resetAlignment() +{ + setAlignment({}); +} + +/*! + \qmlproperty enumeration QtQuick.Controls::DialogButtonBox::standardButtons + + This property holds a combination of standard buttons that are used by the button box. + + \snippet qtquickcontrols-dialogbuttonbox.qml 1 + + The buttons will be positioned in the appropriate order for the user's platform. + + Possible flags: + \value DialogButtonBox.Ok An "OK" button defined with the \c AcceptRole. + \value DialogButtonBox.Open An "Open" button defined with the \c AcceptRole. + \value DialogButtonBox.Save A "Save" button defined with the \c AcceptRole. + \value DialogButtonBox.Cancel A "Cancel" button defined with the \c RejectRole. + \value DialogButtonBox.Close A "Close" button defined with the \c RejectRole. + \value DialogButtonBox.Discard A "Discard" or "Don't Save" button, depending on the platform, defined with the \c DestructiveRole. + \value DialogButtonBox.Apply An "Apply" button defined with the \c ApplyRole. + \value DialogButtonBox.Reset A "Reset" button defined with the \c ResetRole. + \value DialogButtonBox.RestoreDefaults A "Restore Defaults" button defined with the \c ResetRole. + \value DialogButtonBox.Help A "Help" button defined with the \c HelpRole. + \value DialogButtonBox.SaveAll A "Save All" button defined with the \c AcceptRole. + \value DialogButtonBox.Yes A "Yes" button defined with the \c YesRole. + \value DialogButtonBox.YesToAll A "Yes to All" button defined with the \c YesRole. + \value DialogButtonBox.No A "No" button defined with the \c NoRole. + \value DialogButtonBox.NoToAll A "No to All" button defined with the \c NoRole. + \value DialogButtonBox.Abort An "Abort" button defined with the \c RejectRole. + \value DialogButtonBox.Retry A "Retry" button defined with the \c AcceptRole. + \value DialogButtonBox.Ignore An "Ignore" button defined with the \c AcceptRole. + \value DialogButtonBox.NoButton An invalid button. + + \sa standardButton() +*/ +QPlatformDialogHelper::StandardButtons QQuickDialogButtonBox::standardButtons() const +{ + Q_D(const QQuickDialogButtonBox); + return d->standardButtons; +} + +void QQuickDialogButtonBox::setStandardButtons(QPlatformDialogHelper::StandardButtons buttons) +{ + Q_D(QQuickDialogButtonBox); + if (d->standardButtons == buttons) + return; + + d->removeStandardButtons(); + + for (int i = QPlatformDialogHelper::FirstButton; i <= QPlatformDialogHelper::LastButton; i<<=1) { + QPlatformDialogHelper::StandardButton standardButton = static_cast<QPlatformDialogHelper::StandardButton>(i); + if (standardButton & buttons) { + QQuickAbstractButton *button = d->createStandardButton(standardButton); + if (button) + addItem(button); + } + } + + if (isComponentComplete()) + polish(); + + d->standardButtons = buttons; + emit standardButtonsChanged(); +} + +/*! + \qmlmethod AbstractButton QtQuick.Controls::DialogButtonBox::standardButton(StandardButton button) + + Returns the specified standard \a button, or \c null if it does not exist. + + \sa standardButtons +*/ +QQuickAbstractButton *QQuickDialogButtonBox::standardButton(QPlatformDialogHelper::StandardButton button) const +{ + Q_D(const QQuickDialogButtonBox); + if (Q_UNLIKELY(!(d->standardButtons & button))) + return nullptr; + for (int i = 0, n = count(); i < n; ++i) { + QQuickAbstractButton *btn = qobject_cast<QQuickAbstractButton *>(d->itemAt(i)); + if (Q_LIKELY(btn)) { + QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>(qmlAttachedPropertiesObject<QQuickDialogButtonBox>(btn, false)); + if (attached && QQuickDialogButtonBoxAttachedPrivate::get(attached)->standardButton == button) + return btn; + } + } + return nullptr; +} + +/*! + \qmlproperty Component QtQuick.Controls::DialogButtonBox::delegate + + This property holds a delegate for creating standard buttons. + + \sa standardButtons +*/ +QQmlComponent *QQuickDialogButtonBox::delegate() const +{ + Q_D(const QQuickDialogButtonBox); + return d->delegate; +} + +void QQuickDialogButtonBox::setDelegate(QQmlComponent* delegate) +{ + Q_D(QQuickDialogButtonBox); + if (d->delegate == delegate) + return; + + delete d->delegate; + d->delegate = delegate; + emit delegateChanged(); +} + +QQuickDialogButtonBoxAttached *QQuickDialogButtonBox::qmlAttachedProperties(QObject *object) +{ + return new QQuickDialogButtonBoxAttached(object); +} + +/*! + \since QtQuick.Controls 2.5 (Qt 5.12) + \qmlproperty enumeration QtQuick.Controls::DialogButtonBox::buttonLayout + + This property holds the button layout policy to be used when arranging the buttons contained in the button box. + The default value is platform-specific. + + Available values: + \value DialogButtonBox.WinLayout Use a policy appropriate for applications on Windows. + \value DialogButtonBox.MacLayout Use a policy appropriate for applications on macOS. + \value DialogButtonBox.KdeLayout Use a policy appropriate for applications on KDE. + \value DialogButtonBox.GnomeLayout Use a policy appropriate for applications on GNOME. + \value DialogButtonBox.AndroidLayout Use a policy appropriate for applications on Android. +*/ +QPlatformDialogHelper::ButtonLayout QQuickDialogButtonBox::buttonLayout() const +{ + Q_D(const QQuickDialogButtonBox); + return d->buttonLayout; +} + +void QQuickDialogButtonBox::setButtonLayout(QPlatformDialogHelper::ButtonLayout layout) +{ + Q_D(QQuickDialogButtonBox); + if (d->buttonLayout == layout) + return; + + d->buttonLayout = layout; + if (isComponentComplete()) + d->updateLayout(); + emit buttonLayoutChanged(); +} + +void QQuickDialogButtonBox::resetButtonLayout() +{ + setButtonLayout(platformButtonLayout()); +} + +void QQuickDialogButtonBox::updatePolish() +{ + Q_D(QQuickDialogButtonBox); + QQuickContainer::updatePolish(); + d->updateLayout(); +} + +bool QQuickDialogButtonBox::event(QEvent *e) +{ + Q_D(QQuickDialogButtonBox); + if (e->type() == QEvent::LanguageChange) + d->updateLanguage(); + return QQuickContainer::event(e); +} + +void QQuickDialogButtonBox::componentComplete() +{ + Q_D(QQuickDialogButtonBox); + QQuickContainer::componentComplete(); + d->updateLayout(); +} + +void QQuickDialogButtonBox::geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) +{ + Q_D(QQuickDialogButtonBox); + QQuickContainer::geometryChange(newGeometry, oldGeometry); + d->updateLayout(); +} + +void QQuickDialogButtonBox::contentItemChange(QQuickItem *newItem, QQuickItem *oldItem) +{ + Q_D(QQuickDialogButtonBox); + QQuickContainer::contentItemChange(newItem, oldItem); + if (oldItem) + QQuickItemPrivate::get(oldItem)->removeItemChangeListener(d, QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight); + if (newItem) + QQuickItemPrivate::get(newItem)->addItemChangeListener(d, QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight); +} + +bool QQuickDialogButtonBox::isContent(QQuickItem *item) const +{ + return qobject_cast<QQuickAbstractButton *>(item); +} + +void QQuickDialogButtonBox::itemAdded(int index, QQuickItem *item) +{ + Q_D(QQuickDialogButtonBox); + Q_UNUSED(index); + if (QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(item)) + QObjectPrivate::connect(button, &QQuickAbstractButton::clicked, d, &QQuickDialogButtonBoxPrivate::handleClick); + if (QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>(qmlAttachedPropertiesObject<QQuickDialogButtonBox>(item, false))) + QQuickDialogButtonBoxAttachedPrivate::get(attached)->setButtonBox(this); + d->updateImplicitContentSize(); + if (isComponentComplete()) + polish(); +} + +void QQuickDialogButtonBox::itemRemoved(int index, QQuickItem *item) +{ + Q_D(QQuickDialogButtonBox); + Q_UNUSED(index); + if (QQuickAbstractButton *button = qobject_cast<QQuickAbstractButton *>(item)) + QObjectPrivate::disconnect(button, &QQuickAbstractButton::clicked, d, &QQuickDialogButtonBoxPrivate::handleClick); + if (QQuickDialogButtonBoxAttached *attached = qobject_cast<QQuickDialogButtonBoxAttached *>(qmlAttachedPropertiesObject<QQuickDialogButtonBox>(item, false))) + QQuickDialogButtonBoxAttachedPrivate::get(attached)->setButtonBox(nullptr); + d->updateImplicitContentSize(); + if (isComponentComplete()) + polish(); +} + +#if QT_CONFIG(accessibility) +QAccessible::Role QQuickDialogButtonBox::accessibleRole() const +{ + return QAccessible::PageTabList; +} +#endif + +void QQuickDialogButtonBoxAttachedPrivate::setButtonBox(QQuickDialogButtonBox *box) +{ + Q_Q(QQuickDialogButtonBoxAttached); + if (buttonBox == box) + return; + + buttonBox = box; + emit q->buttonBoxChanged(); +} + +QQuickDialogButtonBoxAttached::QQuickDialogButtonBoxAttached(QObject *parent) + : QObject(*(new QQuickDialogButtonBoxAttachedPrivate), parent) +{ + Q_D(QQuickDialogButtonBoxAttached); + QQuickItem *parentItem = qobject_cast<QQuickItem *>(parent); + while (parentItem && !d->buttonBox) { + d->buttonBox = qobject_cast<QQuickDialogButtonBox *>(parentItem); + parentItem = parentItem->parentItem(); + } +} + +/*! + \qmlattachedproperty DialogButtonBox QtQuick.Controls::DialogButtonBox::buttonBox + \readonly + + This attached property holds the button box that manages this button, or + \c null if the button is not in a button box. +*/ +QQuickDialogButtonBox *QQuickDialogButtonBoxAttached::buttonBox() const +{ + Q_D(const QQuickDialogButtonBoxAttached); + return d->buttonBox; +} + +/*! + \qmlattachedproperty enumeration QtQuick.Controls::DialogButtonBox::buttonRole + + This attached property holds the role of each button in a button box. + + \snippet qtquickcontrols-dialogbuttonbox-attached.qml 1 + + Available values: + \value DialogButtonBox.InvalidRole The button is invalid. + \value DialogButtonBox.AcceptRole Clicking the button causes the dialog to be accepted (e.g. \uicontrol OK). + \value DialogButtonBox.RejectRole Clicking the button causes the dialog to be rejected (e.g. \uicontrol Cancel). + \value DialogButtonBox.DestructiveRole Clicking the button causes a destructive change (e.g. for discarding changes) and closes the dialog. + \value DialogButtonBox.ActionRole Clicking the button causes changes to the elements within the dialog. + \value DialogButtonBox.HelpRole The button can be clicked to request help. + \value DialogButtonBox.YesRole The button is a "Yes"-like button. + \value DialogButtonBox.NoRole The button is a "No"-like button. + \value DialogButtonBox.ResetRole The button resets the dialog's fields to default values. + \value DialogButtonBox.ApplyRole The button applies current changes. +*/ +QPlatformDialogHelper::ButtonRole QQuickDialogButtonBoxAttached::buttonRole() const +{ + Q_D(const QQuickDialogButtonBoxAttached); + return d->buttonRole; +} + +void QQuickDialogButtonBoxAttached::setButtonRole(QPlatformDialogHelper::ButtonRole role) +{ + Q_D(QQuickDialogButtonBoxAttached); + if (d->buttonRole == role) + return; + + d->buttonRole = role; + emit buttonRoleChanged(); +} + +QT_END_NAMESPACE + +#include "moc_qquickdialogbuttonbox_p.cpp" |