Templates: rename the C++ module to qtquicktemplates2

Change-Id: I146da903b46f5c2caf865e37291c25376b49021a
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>

1 files changed, 527 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquickcontainer.cpp b/src/quicktemplates2/qquickcontainer.cpp
new file mode 100644
index 00000000..9d39182f
--- /dev/null
+++ b/src/quicktemplates2/qquickcontainer.cpp
@@ -0,0 +1,527 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Labs Templates module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickcontainer_p.h"
+#include "qquickcontainer_p_p.h"
+
+#include <QtQuick/private/qquickflickable_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \qmltype Container
+    \inherits Control
+    \instantiates QQuickContainer
+    \inqmlmodule Qt.labs.controls
+    \ingroup qtquickcontrols2-containers
+    \brief A container control base type.
+
+    Container is the base type of container-like user interface controls.
+
+    \labs
+
+    \sa {Container Controls}
+*/
+
+static QQuickItem *effectiveContentItem(QQuickItem *item)
+{
+    QQuickFlickable *flickable = qobject_cast<QQuickFlickable *>(item);
+    if (flickable)
+        return flickable->contentItem();
+    return item;
+}
+
+QQuickContainerPrivate::QQuickContainerPrivate() : contentModel(nullptr), currentIndex(-1), updatingCurrent(false)
+{
+}
+
+void QQuickContainerPrivate::init()
+{
+    Q_Q(QQuickContainer);
+    contentModel = new QQmlObjectModel(q);
+    QObject::connect(contentModel, &QQmlObjectModel::countChanged, q, &QQuickContainer::countChanged);
+    QObject::connect(contentModel, &QQmlObjectModel::childrenChanged, q, &QQuickContainer::contentChildrenChanged);
+}
+
+void QQuickContainerPrivate::cleanup()
+{
+    // ensure correct destruction order (QTBUG-46798)
+    delete contentItem;
+    const int count = contentModel->count();
+    for (int i = 0; i < count; ++i) {
+        QQuickItem *item = itemAt(i);
+        if (item) {
+            QQuickItemPrivate::get(item)->removeItemChangeListener(this, QQuickItemPrivate::Destroyed | QQuickItemPrivate::Parent);
+            delete item;
+        }
+    }
+    delete contentModel;
+}
+
+QQuickItem *QQuickContainerPrivate::itemAt(int index) const
+{
+    return qobject_cast<QQuickItem *>(contentModel->get(index));
+}
+
+void QQuickContainerPrivate::insertItem(int index, QQuickItem *item)
+{
+    Q_Q(QQuickContainer);
+    if (!q->isContent(item))
+        return;
+    contentData.append(item);
+
+    updatingCurrent = true;
+
+    item->setParentItem(effectiveContentItem(contentItem));
+    QQuickItemPrivate::get(item)->addItemChangeListener(this, QQuickItemPrivate::Destroyed | QQuickItemPrivate::Parent);
+    contentModel->insert(index, item);
+
+    q->itemAdded(index, item);
+
+    if (contentModel->count() == 1 && currentIndex == -1)
+        q->setCurrentIndex(index);
+
+    updatingCurrent = false;
+}
+
+void QQuickContainerPrivate::moveItem(int from, int to)
+{
+    Q_Q(QQuickContainer);
+    int oldCurrent = currentIndex;
+    contentModel->move(from, to);
+
+    updatingCurrent = true;
+
+    if (from == oldCurrent)
+        q->setCurrentIndex(to);
+    else if (from < oldCurrent && to >= oldCurrent)
+        q->setCurrentIndex(oldCurrent - 1);
+    else if (from > oldCurrent && to <= oldCurrent)
+        q->setCurrentIndex(oldCurrent + 1);
+
+    updatingCurrent = false;
+}
+
+void QQuickContainerPrivate::removeItem(int index, QQuickItem *item)
+{
+    Q_Q(QQuickContainer);
+    if (!q->isContent(item))
+        return;
+    contentData.removeOne(item);
+
+    updatingCurrent = true;
+
+    bool currentChanged = false;
+    if (index == currentIndex) {
+        q->setCurrentIndex(currentIndex - 1);
+    } else if (index < currentIndex) {
+        --currentIndex;
+        currentChanged = true;
+    }
+
+    QQuickItemPrivate::get(item)->removeItemChangeListener(this, QQuickItemPrivate::Destroyed | QQuickItemPrivate::Parent);
+    item->setParentItem(nullptr);
+    contentModel->remove(index);
+
+    q->itemRemoved(index, item);
+
+    if (currentChanged)
+        emit q->currentIndexChanged();
+
+    updatingCurrent = false;
+}
+
+void QQuickContainerPrivate::_q_currentIndexChanged()
+{
+    Q_Q(QQuickContainer);
+    if (!updatingCurrent)
+        q->setCurrentIndex(contentItem ? contentItem->property("currentIndex").toInt() : -1);
+}
+
+void QQuickContainerPrivate::itemChildAdded(QQuickItem *, QQuickItem *child)
+{
+    // add dynamically reparented items (eg. by a Repeater)
+    if (!QQuickItemPrivate::get(child)->isTransparentForPositioner() && !contentData.contains(child))
+        insertItem(contentModel->count(), child);
+}
+
+void QQuickContainerPrivate::itemParentChanged(QQuickItem *item, QQuickItem *parent)
+{
+    // remove dynamically unparented items (eg. by a Repeater)
+    if (!parent)
+        removeItem(contentModel->indexOf(item, nullptr), item);
+}
+
+void QQuickContainerPrivate::itemSiblingOrderChanged(QQuickItem *)
+{
+    // reorder the restacked items (eg. by a Repeater)
+    Q_Q(QQuickContainer);
+    QList<QQuickItem *> siblings = effectiveContentItem(contentItem)->childItems();
+    for (int i = 0; i < siblings.count(); ++i) {
+        QQuickItem* sibling = siblings.at(i);
+        int index = contentModel->indexOf(sibling, nullptr);
+        q->moveItem(index, i);
+    }
+}
+
+void QQuickContainerPrivate::itemDestroyed(QQuickItem *item)
+{
+    int index = contentModel->indexOf(item, nullptr);
+    if (index != -1)
+        removeItem(index, item);
+}
+
+void QQuickContainerPrivate::contentData_append(QQmlListProperty<QObject> *prop, QObject *obj)
+{
+    QQuickContainerPrivate *p = static_cast<QQuickContainerPrivate *>(prop->data);
+    QQuickContainer *q = static_cast<QQuickContainer *>(prop->object);
+    QQuickItem *item = qobject_cast<QQuickItem *>(obj);
+    if (item) {
+        if (QQuickItemPrivate::get(item)->isTransparentForPositioner()) {
+            QQuickItemPrivate::get(item)->addItemChangeListener(p, QQuickItemPrivate::SiblingOrder);
+            item->setParentItem(effectiveContentItem(p->contentItem));
+        } else if (p->contentModel->indexOf(item, nullptr) == -1) {
+            q->addItem(item);
+        }
+    } else {
+        p->contentData.append(obj);
+    }
+}
+
+int QQuickContainerPrivate::contentData_count(QQmlListProperty<QObject> *prop)
+{
+    QQuickContainerPrivate *p = static_cast<QQuickContainerPrivate *>(prop->data);
+    return p->contentData.count();
+}
+
+QObject *QQuickContainerPrivate::contentData_at(QQmlListProperty<QObject> *prop, int index)
+{
+    QQuickContainerPrivate *p = static_cast<QQuickContainerPrivate *>(prop->data);
+    return p->contentData.value(index);
+}
+
+void QQuickContainerPrivate::contentData_clear(QQmlListProperty<QObject> *prop)
+{
+    QQuickContainerPrivate *p = static_cast<QQuickContainerPrivate *>(prop->data);
+    p->contentData.clear();
+}
+
+void QQuickContainerPrivate::contentChildren_append(QQmlListProperty<QQuickItem> *prop, QQuickItem *item)
+{
+    QQuickContainer *q = static_cast<QQuickContainer *>(prop->object);
+    q->addItem(item);
+}
+
+int QQuickContainerPrivate::contentChildren_count(QQmlListProperty<QQuickItem> *prop)
+{
+    QQuickContainerPrivate *p = static_cast<QQuickContainerPrivate *>(prop->data);
+    return p->contentModel->count();
+}
+
+QQuickItem *QQuickContainerPrivate::contentChildren_at(QQmlListProperty<QQuickItem> *prop, int index)
+{
+    QQuickContainer *q = static_cast<QQuickContainer *>(prop->object);
+    return q->itemAt(index);
+}
+
+void QQuickContainerPrivate::contentChildren_clear(QQmlListProperty<QQuickItem> *prop)
+{
+    QQuickContainerPrivate *p = static_cast<QQuickContainerPrivate *>(prop->data);
+    p->contentModel->clear();
+}
+
+QQuickContainer::QQuickContainer(QQuickItem *parent) :
+    QQuickControl(*(new QQuickContainerPrivate), parent)
+{
+    Q_D(QQuickContainer);
+    d->init();
+}
+
+QQuickContainer::QQuickContainer(QQuickContainerPrivate &dd, QQuickItem *parent) :
+    QQuickControl(dd, parent)
+{
+    Q_D(QQuickContainer);
+    d->init();
+}
+
+QQuickContainer::~QQuickContainer()
+{
+    Q_D(QQuickContainer);
+    d->cleanup();
+}
+
+/*!
+    \qmlproperty int Qt.labs.controls::Container::count
+    \readonly
+
+    This property holds the number of items.
+*/
+int QQuickContainer::count() const
+{
+    Q_D(const QQuickContainer);
+    return d->contentModel->count();
+}
+
+/*!
+    \qmlmethod Item Qt.labs.controls::Container::itemAt(int index)
+
+    Returns the item at \a index, or \c null if it does not exist.
+*/
+QQuickItem *QQuickContainer::itemAt(int index) const
+{
+    Q_D(const QQuickContainer);
+    return d->itemAt(index);
+}
+
+/*!
+    \qmlmethod void Qt.labs.controls::Container::addItem(Item item)
+
+    Adds an \a item.
+*/
+void QQuickContainer::addItem(QQuickItem *item)
+{
+    Q_D(QQuickContainer);
+    insertItem(d->contentModel->count(), item);
+}
+
+/*!
+    \qmlmethod void Qt.labs.controls::Container::insertItem(int index, Item item)
+
+    Inserts an \a item at \a index.
+*/
+void QQuickContainer::insertItem(int index, QQuickItem *item)
+{
+    Q_D(QQuickContainer);
+    if (!item)
+        return;
+    const int count = d->contentModel->count();
+    if (index < 0 || index > count)
+        index = count;
+
+    int oldIndex = d->contentModel->indexOf(item, nullptr);
+    if (oldIndex != -1) {
+        if (oldIndex < index)
+            --index;
+        if (oldIndex != index)
+            d->moveItem(oldIndex, index);
+    } else {
+        d->insertItem(index, item);
+    }
+}
+
+/*!
+    \qmlmethod void Qt.labs.controls::Container::moveItem(int from, int to)
+
+    Moves an item \a from one index \a to another.
+*/
+void QQuickContainer::moveItem(int from, int to)
+{
+    Q_D(QQuickContainer);
+    const int count = d->contentModel->count();
+    if (from < 0 || from > count - 1)
+        return;
+    if (to < 0 || to > count - 1)
+        to = count - 1;
+
+    if (from != to)
+        d->moveItem(from, to);
+}
+
+/*!
+    \qmlmethod void Qt.labs.controls::Container::removeItem(int index)
+
+    Removes an item at \a index.
+
+    \note The ownership of the item is transferred to the caller.
+*/
+void QQuickContainer::removeItem(int index)
+{
+    Q_D(QQuickContainer);
+    const int count = d->contentModel->count();
+    if (index < 0 || index >= count)
+        return;
+
+    QQuickItem *item = itemAt(index);
+    if (item)
+        d->removeItem(index, item);
+}
+
+/*!
+    \qmlproperty model Qt.labs.controls::Container::contentModel
+    \readonly
+
+    This property holds the content model of items.
+*/
+QVariant QQuickContainer::contentModel() const
+{
+    Q_D(const QQuickContainer);
+    return QVariant::fromValue(d->contentModel);
+}
+
+/*!
+    \qmlproperty list<Object> Qt.labs.controls::Container::contentData
+    \default
+
+    This property holds the list of content data.
+
+    \sa Item::data
+*/
+QQmlListProperty<QObject> QQuickContainer::contentData()
+{
+    Q_D(QQuickContainer);
+    return QQmlListProperty<QObject>(this, d,
+                                     QQuickContainerPrivate::contentData_append,
+                                     QQuickContainerPrivate::contentData_count,
+                                     QQuickContainerPrivate::contentData_at,
+                                     QQuickContainerPrivate::contentData_clear);
+}
+
+/*!
+    \qmlproperty list<Item> Qt.labs.controls::Container::contentChildren
+
+    This property holds the list of content children.
+
+    \sa Item::children
+*/
+QQmlListProperty<QQuickItem> QQuickContainer::contentChildren()
+{
+    Q_D(QQuickContainer);
+    return QQmlListProperty<QQuickItem>(this, d,
+                                        QQuickContainerPrivate::contentChildren_append,
+                                        QQuickContainerPrivate::contentChildren_count,
+                                        QQuickContainerPrivate::contentChildren_at,
+                                        QQuickContainerPrivate::contentChildren_clear);
+}
+
+/*!
+    \qmlproperty int Qt.labs.controls::Container::currentIndex
+
+    This property holds the index of the current item in the container.
+*/
+int QQuickContainer::currentIndex() const
+{
+    Q_D(const QQuickContainer);
+    return d->currentIndex;
+}
+
+void QQuickContainer::setCurrentIndex(int index)
+{
+    Q_D(QQuickContainer);
+    if (d->currentIndex == index)
+        return;
+
+    d->currentIndex = index;
+    emit currentIndexChanged();
+    emit currentItemChanged();
+}
+
+/*!
+    \qmlproperty Item Qt.labs.controls::Container::currentItem
+
+    This property holds the current item.
+*/
+QQuickItem *QQuickContainer::currentItem() const
+{
+    Q_D(const QQuickContainer);
+    return itemAt(d->currentIndex);
+}
+
+void QQuickContainer::itemChange(ItemChange change, const ItemChangeData &data)
+{
+    Q_D(QQuickContainer);
+    QQuickControl::itemChange(change, data);
+    if (change == QQuickItem::ItemChildAddedChange && isComponentComplete() && data.item != d->background && data.item != d->contentItem) {
+        if (!QQuickItemPrivate::get(data.item)->isTransparentForPositioner() && d->contentModel->indexOf(data.item, nullptr) == -1)
+            addItem(data.item);
+    }
+}
+
+void QQuickContainer::contentItemChange(QQuickItem *newItem, QQuickItem *oldItem)
+{
+    Q_D(QQuickContainer);
+    QQuickControl::contentItemChange(newItem, oldItem);
+
+    static const int slotIndex = metaObject()->indexOfSlot("_q_currentIndexChanged()");
+
+    if (oldItem) {
+        QQuickItemPrivate::get(oldItem)->removeItemChangeListener(d, QQuickItemPrivate::Children);
+        QQuickItem *oldContentItem = effectiveContentItem(oldItem);
+        if (oldContentItem != oldItem)
+            QQuickItemPrivate::get(oldContentItem)->removeItemChangeListener(d, QQuickItemPrivate::Children);
+
+        int signalIndex = oldItem->metaObject()->indexOfSignal("currentIndexChanged()");
+        if (signalIndex != -1)
+            QMetaObject::disconnect(oldItem, signalIndex, this, slotIndex);
+    }
+
+    if (newItem) {
+        QQuickItemPrivate::get(newItem)->addItemChangeListener(d, QQuickItemPrivate::Children);
+        QQuickItem *newContentItem = effectiveContentItem(newItem);
+        if (newContentItem != newItem)
+            QQuickItemPrivate::get(newContentItem)->addItemChangeListener(d, QQuickItemPrivate::Children);
+
+        int signalIndex = newItem->metaObject()->indexOfSignal("currentIndexChanged()");
+        if (signalIndex != -1)
+            QMetaObject::connect(newItem, signalIndex, this, slotIndex);
+    }
+}
+
+bool QQuickContainer::isContent(QQuickItem *item) const
+{
+    // If the item has a QML context associated to it (it was created in QML),
+    // we add it to the content model. Otherwise, it's probably the default
+    // highlight item that is always created by the item views, which we need
+    // to exclude.
+    //
+    // TODO: Find a better way to identify/exclude the highlight item...
+    return qmlContext(item);
+}
+
+void QQuickContainer::itemAdded(int index, QQuickItem *item)
+{
+    Q_UNUSED(index);
+    Q_UNUSED(item);
+}
+
+void QQuickContainer::itemRemoved(int index, QQuickItem *item)
+{
+    Q_UNUSED(index);
+    Q_UNUSED(item);
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickcontainer_p.cpp"