void PageItem::setFlickable(QDeclarativeItem *flickable)
{
if (m_flickable.data() == flickable) {
return;
}
//check the object can act as a flickable
if (!flickable->property("contentX").isValid() ||
!flickable->property("contentY").isValid()) {
return;
}
if (m_flickable) {
disconnect(m_flickable.data(), 0, this, 0);
}
//check the object can act as a flickable
if (!flickable->property("contentX").isValid() ||
!flickable->property("contentY").isValid()) {
m_flickable.clear();
return;
}
m_flickable = flickable;
if (flickable) {
connect(flickable, SIGNAL(contentXChanged()), this, SLOT(contentXChanged()));
connect(flickable, SIGNAL(contentYChanged()), this, SLOT(contentYChanged()));
}
emit flickableChanged();
}
QtFlickProvider::QtFlickProvider(QQuickWebView* viewItem, QQuickWebPage* pageItem)
: QObject(viewItem)
{
ASSERT(viewItem);
ASSERT(pageItem);
QDeclarativeEngine* engine = qmlEngine(viewItem);
QDeclarativeContext* context = qmlContext(viewItem);
ASSERT(engine);
ASSERT(context);
QDeclarativeComponent component(engine, viewItem);
// Create the internal Flickable instance dynamically.
// We only use public QML API so that we do not depend
// on private API of the QtDeclarative module.
component.setData(QByteArrayLiteral("import QtQuick 2.0\nFlickable {}"), QUrl());
m_flickable = qobject_cast<QQuickItem*>(component.create(context));
QMetaProperty content = resolveMetaProperty(m_flickable, "contentItem");
m_contentItem = content.read(m_flickable).value<QQuickItem*>();
ASSERT(m_contentItem);
// Resolve meta methods and properties of the Flickable instance.
m_returnToBoundsMethod = resolveMetaMethod(m_flickable, "returnToBounds()");
m_cancelFlickMethod = resolveMetaMethod(m_flickable, "cancelFlick()");
m_contentWidth = resolveMetaProperty(m_flickable, "contentWidth");
m_contentHeight = resolveMetaProperty(m_flickable, "contentHeight");
m_contentX = resolveMetaProperty(m_flickable, "contentX");
m_contentY = resolveMetaProperty(m_flickable, "contentY");
m_moving = resolveMetaProperty(m_flickable, "moving");
m_dragging = resolveMetaProperty(m_flickable, "dragging");
m_flicking = resolveMetaProperty(m_flickable, "flicking");
m_flickableData = resolveMetaProperty(m_flickable, "flickableData");
// Set the viewItem as the parent of the flickable instance
// and reparent the page so it is placed on the flickable contentItem.
m_flickable->setParentItem(viewItem);
pageItem->setParentItem(m_contentItem);
// Propagate flickable signals.
connect(m_flickable, SIGNAL(movementStarted()), SIGNAL(movementStarted()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(movementEnded()), SIGNAL(movementEnded()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(flickingChanged()), SIGNAL(flickingChanged()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(draggingChanged()), SIGNAL(draggingChanged()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(contentWidthChanged()), SIGNAL(contentWidthChanged()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(contentHeightChanged()), SIGNAL(contentHeightChanged()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(contentXChanged()), SIGNAL(contentXChanged()), Qt::DirectConnection);
connect(m_flickable, SIGNAL(contentYChanged()), SIGNAL(contentYChanged()), Qt::DirectConnection);
}
void QtViewportHandler::flickMoveStarted()
{
Q_ASSERT(m_viewportItem->isMoving());
m_scrollUpdateDeferrer = adoptPtr(new ViewportUpdateDeferrer(this, ViewportUpdateDeferrer::DeferUpdateAndSuspendContent));
m_lastScrollPosition = m_viewportItem->contentPos();
connect(m_viewportItem, SIGNAL(contentXChanged()), SLOT(pageItemPositionChanged()));
connect(m_viewportItem, SIGNAL(contentYChanged()), SLOT(pageItemPositionChanged()));
}
void QtViewportInteractionEngine::flickableMoveStarted()
{
Q_ASSERT(m_viewport->isMoving());
m_scrollUpdateDeferrer = adoptPtr(new ViewportUpdateDeferrer(this, ViewportUpdateDeferrer::DeferUpdateAndSuspendContent));
m_lastScrollPosition = m_viewport->contentPos();
connect(m_viewport, SIGNAL(contentXChanged()), SLOT(flickableMovingPositionUpdate()));
connect(m_viewport, SIGNAL(contentYChanged()), SLOT(flickableMovingPositionUpdate()));
}
void QtViewportHandler::flickMoveEnded()
{
Q_ASSERT(!m_viewportItem->isMoving());
// This method is called on the end of the pan or pan kinetic animation.
m_scrollUpdateDeferrer.clear();
m_lastScrollPosition = QPointF();
disconnect(m_viewportItem, SIGNAL(contentXChanged()), this, SLOT(pageItemPositionChanged()));
disconnect(m_viewportItem, SIGNAL(contentYChanged()), this, SLOT(pageItemPositionChanged()));
}
void QtViewportInteractionEngine::flickableMoveEnded()
{
Q_ASSERT(!m_viewport->isMoving());
// This method is called on the end of the pan or pan kinetic animation.
m_scrollUpdateDeferrer.clear();
m_lastScrollPosition = QPointF();
disconnect(m_viewport, SIGNAL(contentXChanged()), this, SLOT(flickableMovingPositionUpdate()));
disconnect(m_viewport, SIGNAL(contentYChanged()), this, SLOT(flickableMovingPositionUpdate()));
}
void BooksListWatcher::setListView(QQuickItem* aView)
{
if (iListView != aView) {
const QSize oldSize(iSize);
if (iListView) iListView->disconnect(this);
iListView = aView;
if (iListView) {
connect(iListView,
SIGNAL(widthChanged()),
SLOT(onWidthChanged()));
connect(iListView,
SIGNAL(heightChanged()),
SLOT(onHeightChanged()));
connect(iListView,
SIGNAL(contentXChanged()),
SLOT(onContentXChanged()));
connect(iListView,
SIGNAL(contentYChanged()),
SLOT(onContentYChanged()));
connect(iListView,
SIGNAL(contentWidthChanged()),
SLOT(onContentSizeChanged()));
connect(iListView,
SIGNAL(contentHeightChanged()),
SLOT(onContentSizeChanged()));
iContentX = contentX();
iContentY = contentY();
updateCurrentIndex();
} else {
iContentX = iContentY = 0;
iSize = QSize(0,0);
}
Q_EMIT listViewChanged();
if (oldSize != iSize) {
Q_EMIT sizeChanged();
}
if (oldSize.width() != iSize.width()) {
Q_EMIT widthChanged();
}
if (oldSize.height() != iSize.height()) {
Q_EMIT heightChanged();
}
}
}
PageViewportControllerClientQt::PageViewportControllerClientQt(QQuickWebView* viewportItem, QQuickWebPage* pageItem)
: m_viewportItem(viewportItem)
, m_pageItem(pageItem)
, m_scaleAnimation(new ScaleAnimation(this))
, m_pinchStartScale(-1)
, m_lastCommittedScale(-1)
, m_zoomOutScale(0)
, m_isUserInteracting(false)
, m_ignoreViewportChanges(false)
{
m_scaleAnimation->setDuration(kScaleAnimationDurationMillis);
m_scaleAnimation->setEasingCurve(QEasingCurve::OutCubic);
connect(m_viewportItem, SIGNAL(movementStarted()), SLOT(flickMoveStarted()), Qt::DirectConnection);
connect(m_viewportItem, SIGNAL(movementEnded()), SLOT(flickMoveEnded()), Qt::DirectConnection);
connect(m_viewportItem, SIGNAL(contentXChanged()), SLOT(pageItemPositionChanged()));
connect(m_viewportItem, SIGNAL(contentYChanged()), SLOT(pageItemPositionChanged()));
connect(m_scaleAnimation, SIGNAL(stateChanged(QAbstractAnimation::State, QAbstractAnimation::State)),
SLOT(scaleAnimationStateChanged(QAbstractAnimation::State, QAbstractAnimation::State)));
}
