#include <qquickdeliveryagent_p_p.h>

Inheritance diagram for QQuickDeliveryAgentPrivate:

Collaboration diagram for QQuickDeliveryAgentPrivate:

Public Types
enum	FocusOption { DontChangeFocusProperty = 0x01 , DontChangeSubFocusItem = 0x02 }

enum class	HoverChange : uint8_t { Clear , Set }

Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject , QMetaObject::Call, int, void *)

using	ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>

Public Member Functions
	QQuickDeliveryAgentPrivate (QQuickItem *root)

	~QQuickDeliveryAgentPrivate ()

void	deliverKeyEvent (QKeyEvent *e)

void	setFocusInScope (QQuickItem scope, QQuickItem item, Qt::FocusReason reason, FocusOptions={ })
	Set the focus inside scope to be item.

void	clearFocusInScope (QQuickItem scope, QQuickItem item, Qt::FocusReason reason, FocusOptions={ })

void	clearFocusObject ()

void	updateFocusItemTransform ()

QQuickItem *	focusTargetItem () const
	Returns the item that should get active focus when the root focus scope gets active focus.

bool	isDeliveringTouchAsMouse () const

void	cancelTouchMouseSynthesis ()

bool	checkIfDoubleTapped (ulong newPressEventTimestamp, QPoint newPressPos)

QPointingDevicePrivate::EventPointData *	mousePointData ()

QPointerEvent *	eventInDelivery () const

bool	deliverTouchAsMouse (QQuickItem item, QTouchEvent pointerEvent)

void	translateTouchEvent (QTouchEvent *touchEvent)

void	removeGrabber (QQuickItem *grabber, bool mouse=true, bool touch=true, bool cancel=false)
	Ungrabs all touchpoint grabs and/or the mouse grab from the given item grabber.

void	onGrabChanged (QObject grabber, QPointingDevice::GrabTransition transition, const QPointerEvent event, const QEventPoint &point)

void	deliverToPassiveGrabbers (const QVector< QPointer< QObject > > &passiveGrabbers, QPointerEvent *pointerEvent)

bool	sendFilteredMouseEvent (QEvent event, QQuickItem receiver, QQuickItem *filteringParent)

bool	sendFilteredPointerEvent (QPointerEvent event, QQuickItem receiver, QQuickItem *filteringParent=nullptr)

bool	sendFilteredPointerEventImpl (QPointerEvent event, QQuickItem receiver, QQuickItem *filteringParent)

bool	deliverSinglePointEventUntilAccepted (QPointerEvent *)

void	handleTouchEvent (QTouchEvent *)

void	handleMouseEvent (QMouseEvent *)
	Handle event on behalf of this delivery agent's window or subscene.

bool	compressTouchEvent (QTouchEvent *)

void	flushFrameSynchronousEvents (QQuickWindow *win)

void	deliverDelayedTouchEvent ()

void	handleWindowDeactivate (QQuickWindow *win)

void	handleWindowHidden (QQuickWindow *win)

bool	allUpdatedPointsAccepted (const QPointerEvent *ev)

QList< QObject * >	exclusiveGrabbers (QPointerEvent *ev)

void	touchToMouseEvent (QEvent::Type type, const QEventPoint &p, const QTouchEvent touchEvent, QMutableSinglePointEvent mouseEvent)

void	ensureDeviceConnected (const QPointingDevice *dev)

void	deliverPointerEvent (QPointerEvent *)

bool	deliverTouchCancelEvent (QTouchEvent *)

bool	deliverPressOrReleaseEvent (QPointerEvent *, bool handlersOnly=false)

void	deliverUpdatedPoints (QPointerEvent *event)

void	deliverMatchingPointsToItem (QQuickItem item, bool isGrabber, QPointerEvent pointerEvent, bool handlersOnly=false)

QVector< QQuickItem * >	pointerTargets (QQuickItem , const QPointerEvent event, const QEventPoint &point, bool checkMouseButtons, bool checkAcceptsTouch) const

QVector< QQuickItem * >	mergePointerTargets (const QVector< QQuickItem * > &list1, const QVector< QQuickItem * > &list2) const

bool	deliverHoverEvent (const QPointF &scenePos, const QPointF &lastScenePos, Qt::KeyboardModifiers modifiers, ulong timestamp)

bool	deliverHoverEventRecursive (QQuickItem *, const QPointF &scenePos, const QPointF &lastScenePos, Qt::KeyboardModifiers modifiers, ulong timestamp)

bool	deliverHoverEventToItem (QQuickItem *item, const QPointF &scenePos, const QPointF &lastScenePos, Qt::KeyboardModifiers modifiers, ulong timestamp, HoverChange hoverChange)

bool	sendHoverEvent (QEvent::Type, QQuickItem *, const QPointF &scenePos, const QPointF &lastScenePos, Qt::KeyboardModifiers modifiers, ulong timestamp)

bool	clearHover (ulong timestamp=0)

Public Member Functions inherited from QObjectPrivate
void	ensureExtraData ()

	QObjectPrivate (int version=QObjectPrivateVersion)

virtual	~QObjectPrivate ()

void	deleteChildren ()

void	clearBindingStorage ()

void	checkForIncompatibleLibraryVersion (int version) const

void	setParent_helper (QObject *)

void	moveToThread_helper ()

void	setThreadData_helper (QThreadData currentData, QThreadData targetData, QBindingStatus *status)

QObjectList	receiverList (const char *signal) const

void	ensureConnectionData ()

void	addConnection (int signal, Connection *c)

int	signalIndex (const char signalName, const QMetaObject *meta=nullptr) const

bool	isSignalConnected (uint signalIdx, bool checkDeclarative=true) const

bool	maybeSignalConnected (uint signalIndex) const

bool	isDeclarativeSignalConnected (uint signalIdx) const

void	connectNotify (const QMetaMethod &signal)

void	disconnectNotify (const QMetaMethod &signal)

void	reinitBindingStorageAfterThreadMove ()

virtual std::string	flagsForDumping () const

virtual void	writeToDebugStream (QDebug &) const

QtPrivate::QPropertyAdaptorSlotObject *	getPropertyAdaptorSlotObject (const QMetaProperty &property)

Public Member Functions inherited from QObjectData
	QObjectData ()=default

virtual	~QObjectData ()=0

QMetaObject *	dynamicMetaObject () const

Static Public Member Functions
static void	notifyFocusChangesRecur (QQuickItem **item, int remaining, Qt::FocusReason reason)

static QQuickDeliveryAgent *	currentOrItemDeliveryAgent (const QQuickItem *item)

static QPointerEvent *	clonePointerEvent (QPointerEvent *event, std::optional< QPointF > transformedLocalPos=std::nullopt)

static void	localizePointerEvent (QPointerEvent ev, const QQuickItem dest)

static bool	anyPointGrabbed (const QPointerEvent *ev)

static bool	allPointsGrabbed (const QPointerEvent *ev)

static bool	isMouseEvent (const QPointerEvent *ev)

static bool	isMouseOrWheelEvent (const QPointerEvent *ev)

static bool	isHoverEvent (const QPointerEvent *ev)

static bool	isTouchEvent (const QPointerEvent *ev)

static bool	isTabletEvent (const QPointerEvent *ev)

static bool	isEventFromMouseOrTouchpad (const QPointerEvent *ev)

static bool	isSynthMouse (const QPointerEvent *ev)

static QQuickPointingDeviceExtra *	deviceExtra (const QInputDevice *device)

static bool	dragOverThreshold (qreal d, Qt::Axis axis, QMouseEvent *event, int startDragThreshold=-1)

static bool	dragOverThreshold (qreal d, Qt::Axis axis, const QEventPoint &tp, int startDragThreshold=-1)

static bool	dragOverThreshold (QVector2D delta)

Static Public Member Functions inherited from QObjectPrivate
static bool	removeConnection (Connection *c)

static QObjectPrivate *	get (QObject *o)

static const QObjectPrivate *	get (const QObject *o)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiverPrivate, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiverPrivate, Func2 slot)

static QMetaObject::Connection	connectImpl (const QObject sender, int signal_index, const QObject receiver, void *slot, QtPrivate::QSlotObjectBase slotObj, int type, const int types, const QMetaObject senderMetaObject)

static QMetaObject::Connection	connect (const QObject sender, int signal_index, QtPrivate::QSlotObjectBase slotObj, Qt::ConnectionType type)

static QMetaObject::Connection	connect (const QObject sender, int signal_index, const QObject receiver, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)

static bool	disconnect (const QObject sender, int signal_index, void *slot)

static bool	disconnect (const QObject sender, int signal_index, const QObject receiver, void **slot)

Public Attributes
QQuickItem *	rootItem = nullptr

QQuickItem *	activeFocusItem = nullptr

QQuickItem *	lastUngrabbed = nullptr

QStack< QPointerEvent * >	eventsInDelivery

QFlatMap< QPointer< QQuickItem >, uint >	hoverItems

QVector< QQuickItem * >	hasFiltered

QVector< QQuickItem * >	skipDelivery

std::unique_ptr< QMutableTouchEvent >	delayedTouch

QList< const QPointingDevice * >	knownPointingDevices

uint	currentHoverId = 0

uchar	compressedTouchCount = 0

bool	allowChildEventFiltering = true

bool	frameSynchronousHoverEnabled = true

bool	hoveredLeafItemFound = false

bool	isSubsceneAgent = false

Qt::FocusReason	lastFocusReason = Qt::OtherFocusReason

int	pointerEventRecursionGuard = 0

int	touchMouseId = -1

const QPointingDevice *	touchMouseDevice = nullptr

ulong	touchMousePressTimestamp = 0

QPoint	touchMousePressPos

QQuickDeliveryAgent::Transform *	sceneTransform = nullptr

QPointF	lastMousePosition

Public Attributes inherited from QObjectPrivate
ExtraData *	extraData

QAtomicPointer< QThreadData >	threadData

QAtomicPointer< ConnectionData >	connections

union {

QObject * currentChildBeingDeleted

QAbstractDeclarativeData * declarativeData

};

QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount

Public Attributes inherited from QObjectData
QObject *	q_ptr

QObject *	parent

QObjectList	children

uint	isWidget: 1

uint	blockSig: 1

uint	wasDeleted: 1

uint	isDeletingChildren: 1

uint	sendChildEvents: 1

uint	receiveChildEvents: 1

uint	isWindow: 1

uint	deleteLaterCalled: 1

uint	isQuickItem: 1

uint	willBeWidget: 1

uint	wasWidget: 1

uint	receiveParentEvents: 1

uint	unused: 20

QAtomicInt	postedEvents

QDynamicMetaObjectData *	metaObject

QBindingStorage	bindingStorage

Static Public Attributes
static bool	subsceneAgentsExist

static QQuickDeliveryAgent *	currentEventDeliveryAgent

Detailed Description

Definition at line 45 of file qquickdeliveryagent_p_p.h.

Member Enumeration Documentation

◆ FocusOption

enum QQuickDeliveryAgentPrivate::FocusOption

Enumerator
DontChangeFocusProperty
DontChangeSubFocusItem

Definition at line 58 of file qquickdeliveryagent_p_p.h.

◆ HoverChange

enum class QQuickDeliveryAgentPrivate::HoverChange : uint8_t

strong

Enumerator
Clear
Set

Definition at line 169 of file qquickdeliveryagent_p_p.h.

Constructor & Destructor Documentation

◆ QQuickDeliveryAgentPrivate()

QQuickDeliveryAgentPrivate::QQuickDeliveryAgentPrivate ( QQuickItem * root )

Definition at line 918 of file qquickdeliveryagent.cpp.

References isSubsceneAgent, and subsceneAgentsExist.

◆ ~QQuickDeliveryAgentPrivate()

QQuickDeliveryAgentPrivate::~QQuickDeliveryAgentPrivate ( )

Definition at line 931 of file qquickdeliveryagent.cpp.

References sceneTransform.

Member Function Documentation

◆ allPointsGrabbed()

bool QQuickDeliveryAgentPrivate::allPointsGrabbed ( const QPointerEvent * ev )

static

Definition at line 1431 of file qquickdeliveryagent.cpp.

Referenced by deliverUpdatedPoints().

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◆ allUpdatedPointsAccepted()

bool QQuickDeliveryAgentPrivate::allUpdatedPointsAccepted ( const QPointerEvent * ev )

Definition at line 1385 of file qquickdeliveryagent.cpp.

References QEventPoint::Pressed.

Referenced by deliverPointerEvent().

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◆ anyPointGrabbed()

bool QQuickDeliveryAgentPrivate::anyPointGrabbed ( const QPointerEvent * ev )

static

Definition at line 1422 of file qquickdeliveryagent.cpp.

◆ cancelTouchMouseSynthesis()

void QQuickDeliveryAgentPrivate::cancelTouchMouseSynthesis ( )

Definition at line 129 of file qquickdeliveryagent.cpp.

References qCDebug, touchMouseDevice, and touchMouseId.

Referenced by deliverPointerEvent(), deliverPressOrReleaseEvent(), deliverTouchAsMouse(), deliverTouchCancelEvent(), and sendFilteredPointerEventImpl().

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◆ checkIfDoubleTapped()

bool QQuickDeliveryAgentPrivate::checkIfDoubleTapped	(	ulong	newPressEventTimestamp,
		QPoint	newPressPos )

Definition at line 75 of file qquickdeliveryagent.cpp.

References qAbs(), QGuiApplication::styleHints(), touchMousePressPos, and touchMousePressTimestamp.

Referenced by deliverTouchAsMouse().

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◆ clearFocusInScope()

void QQuickDeliveryAgentPrivate::clearFocusInScope	(	QQuickItem *	scope,
		QQuickItem *	item,
		Qt::FocusReason	reason,
		FocusOptions	options = { } )

Definition at line 488 of file qquickdeliveryagent.cpp.

References activeFocusItem, DontChangeFocusProperty, DontChangeSubFocusItem, emit, QQuickItemPrivate::Focus, QEvent::FocusIn, QWindow::focusObjectChanged(), QEvent::FocusOut, QQuickItemPrivate::get(), QQuickWindowPrivate::get(), QGuiApplication::inputMethod(), isSubsceneAgent, item, QQuickItemChangeListener::itemFocusChanged(), lastFocusReason, notifyFocusChangesRecur(), priv(), Q_ASSERT, qCDebug, rootItem, QCoreApplication::sendEvent(), updateFocusItemTransform(), and QQuickItem::window().

Referenced by clearFocusObject(), and QQuickTableViewPrivate::releaseItem().

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◆ clearFocusObject()

void QQuickDeliveryAgentPrivate::clearFocusObject ( )

Definition at line 588 of file qquickdeliveryagent.cpp.

References activeFocusItem, clearFocusInScope(), QQuickItemPrivate::get(), Qt::OtherFocusReason, and rootItem.

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◆ clearHover()

bool QQuickDeliveryAgentPrivate::clearHover ( ulong timestamp = 0 )

Definition at line 621 of file qquickdeliveryagent.cpp.

References Clear, deliverHoverEventToItem(), hoverItems, QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::isEmpty(), item, QGuiApplication::keyboardModifiers(), QGuiApplicationPrivate::lastCursorPosition, Q_ASSERT, rootItem, window(), and QQuickItem::window().

Referenced by handleWindowHidden().

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◆ clonePointerEvent()

QPointerEvent * QQuickDeliveryAgentPrivate::clonePointerEvent	(	QPointerEvent *	event,
		std::optional< QPointF >	transformedLocalPos = std::nullopt )

static

Make a copy of any type of QPointerEvent, and optionally localize it by setting its first point's local position() if transformedLocalPos is given.

Note: some subclasses of QSinglePointEvent, such as QWheelEvent, add extra storage. This function doesn't yet support cloning all of those; it can be extended if needed.

Definition at line 947 of file qquickdeliveryagent.cpp.

References QEvent::clone(), QMutableEventPoint::detach(), ret, QMutableEventPoint::setTimestamp(), and QEventPoint::timestamp.

Referenced by QQuickFlickablePrivate::captureDelayedPress(), QQuickFlickable::filterPointerEvent(), and QQuickFlickable::touchEvent().

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◆ compressTouchEvent()

bool QQuickDeliveryAgentPrivate::compressTouchEvent ( QTouchEvent * event )

This function is called from handleTouchEvent() in case a series of touch events containing only Updated and Stationary points arrives within a short period of time. (Some touchscreens are more "jittery" than others.)

It would be a waste of CPU time to deliver events and have items in the scene getting modified more often than once per frame; so here we try to coalesce the series of updates into a single event containing all updates that occur within one frame period, and deliverDelayedTouchEvent() is called from flushFrameSynchronousEvents() to send that single event. This is the reason why touch compression lives here so far, instead of in a lower layer: the render loop updates the scene in sync with the screen's vsync, and flushFrameSynchronousEvents() is called from there (for example from QSGThreadedRenderLoop::polishAndSync(), and equivalent places in other render loops). It would be preferable to move this code down to a lower level eventually, though, because it's not fundamentally a Qt Quick concern.

This optimization can be turned off by setting the environment variable QML_NO_TOUCH_COMPRESSION.

Returns true if "done", false if the caller needs to finish the event delivery.

Definition at line 1547 of file qquickdeliveryagent.cpp.

References compressedTouchCount, delayedTouch, deliverDelayedTouchEvent(), QMutableEventPoint::detach(), i, isSubsceneAgent, QEventPoint::Pressed, qCDebug, QEventPoint::Released, rootItem, QEventPoint::Stationary, QEventPoint::Updated, window(), and QQuickItem::window().

Referenced by handleTouchEvent().

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◆ currentOrItemDeliveryAgent()

QQuickDeliveryAgent * QQuickDeliveryAgentPrivate::currentOrItemDeliveryAgent ( const QQuickItem * item )

static

If called during event delivery, returns the agent that is delivering the event, without checking whether item is reachable from there. Otherwise returns QQuickItemPrivate::deliveryAgent() (the delivery agent for the narrowest subscene containing item), or null if item is null.

Definition at line 682 of file qquickdeliveryagent.cpp.

References currentEventDeliveryAgent, QQuickItemPrivate::get(), and item.

Referenced by QQuickPointerHandler::setPassiveGrab().

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◆ deliverDelayedTouchEvent()

void QQuickDeliveryAgentPrivate::deliverDelayedTouchEvent ( )

Definition at line 1326 of file qquickdeliveryagent.cpp.

References compressedTouchCount, delayedTouch, deliverPointerEvent(), and qCDebug.

Referenced by compressTouchEvent(), flushFrameSynchronousEvents(), and handleTouchEvent().

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◆ deliverHoverEvent()

bool QQuickDeliveryAgentPrivate::deliverHoverEvent	(	const QPointF &	scenePos,
		const QPointF &	lastScenePos,
		Qt::KeyboardModifiers	modifiers,
		ulong	timestamp )

Delivers a hover event at scenePos to the whole scene or subscene that this DeliveryAgent is responsible for. Returns true if delivery is "done".

Definition at line 1038 of file qquickdeliveryagent.cpp.

References QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::begin(), Clear, currentHoverId, deliverHoverEventRecursive(), deliverHoverEventToItem(), QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::end(), QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::erase(), QQuickItemPrivate::get(), hoveredLeafItemFound, hoverItems, QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::isEmpty(), it, item, and rootItem.

Referenced by deliverTouchAsMouse(), flushFrameSynchronousEvents(), handleMouseEvent(), and QQuickMouseArea::itemChange().

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◆ deliverHoverEventRecursive()

bool QQuickDeliveryAgentPrivate::deliverHoverEventRecursive	(	QQuickItem *	item,
		const QPointF &	scenePos,
		const QPointF &	lastScenePos,
		Qt::KeyboardModifiers	modifiers,
		ulong	timestamp )

Delivers a hover event at scenePos to item and all its children. The children get it first. As soon as any item allows the event to remain accepted, recursion stops. Returns true in that case, or false if the event is rejected.

Each item that has hover enabled (from setAcceptHoverEvents()) has the QQuickItemPrivate::hoverEnabled flag set. This only controls whether we should send hover events to the item itself. (HoverHandlers no longer set this flag.) When an item has hoverEnabled set, all its ancestors have the QQuickItemPrivate::subtreeHoverEnabled set. This function will follow the subtrees that have subtreeHoverEnabled by recursing into each child with that flag set. And for each child (in addition to the item itself) that also has hoverEnabled set, we call deliverHoverEventToItem() to actually deliver the event to it. The item can then choose to accept or reject the event. This is only for control over whether we stop propagation or not: an item can reject the event, but at the same time be hovered (and therefore in hoverItems). By accepting the event, the item will effectivly end up as the only one hovered. Any other HoverHandler that may be a child of an item that is stacked underneath, will not. Note that since siblings can overlap, there can be more than one leaf item under the mouse.

Note that HoverHandler doesn't set the hoverEnabled flag on the parent item. But still, adding a HoverHandler to an item will set its subtreeHoverEnabled flag. So all the propagation logic described above will otherwise be the same. But the hoverEnabled flag can be used to resolve if subtreeHoverEnabled is on because the application explicitly requested it (setAcceptHoverEvents()), or indirectly, because the item has HoverHandlers.

For legacy reasons (Qt 6.1), as soon as we find a leaf item that has hover enabled, and therefore receives the event, we stop recursing into the remaining siblings (even if the event was ignored). This means that we only allow hover events to propagate up the direct parent-child hierarchy, and not to siblings. However, if the first candidate HoverHandler is disabled, delivery continues to the next one, which may be a sibling (QTBUG-106548).

Definition at line 1127 of file qquickdeliveryagent.cpp.

References QList< T >::at(), child, QObjectData::children, deliverHoverEventRecursive(), deliverHoverEventToItem(), QQuickItemPrivate::get(), hoveredLeafItemFound, item, QQuickItem::ItemClipsChildrenToShape, QQuickItemPrivate::paintOrderChildItems(), Set, and QList< T >::size().

Referenced by deliverHoverEvent(), and deliverHoverEventRecursive().

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◆ deliverHoverEventToItem()

bool QQuickDeliveryAgentPrivate::deliverHoverEventToItem	(	QQuickItem *	item,
		const QPointF &	scenePos,
		const QPointF &	lastScenePos,
		Qt::KeyboardModifiers	modifiers,
		ulong	timestamp,
		HoverChange	hoverChange )

Delivers a hover event at scenePos to item and its HoverHandlers if any. Returns true if the event remains accepted, false if rejected.

If clearHover is true, it will be sent as a QEvent::HoverLeave event, and the item and its handlers are expected to transition into their non-hovered states even if the position still indicates that the mouse is inside.

Definition at line 1174 of file qquickdeliveryagent.cpp.

References Clear, QGraphicsItem::contains(), currentHoverId, QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::end(), QQuickItemPrivate::extra, QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::find(), QQuickItemPrivate::get(), QQuickItemPrivate::hasPointerHandlers(), hoveredLeafItemFound, QQuickItemPrivate::hoverEnabled, QEvent::HoverEnter, hoverItems, QEvent::HoverLeave, QEvent::HoverMove, item, QGraphicsItem::mapFromScene(), QEvent::MouseMove, Qt::NoButton, qCDebug, QCoreApplication::sendEvent(), sendHoverEvent(), Set, QPointerEvent::setAccepted(), and QPointerEvent::setTimestamp().

Referenced by clearHover(), deliverHoverEvent(), deliverHoverEventRecursive(), and deliverUpdatedPoints().

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◆ deliverKeyEvent()

void QQuickDeliveryAgentPrivate::deliverKeyEvent ( QKeyEvent * e )

Definition at line 888 of file qquickdeliveryagent.cpp.

References QEvent::accept(), QKeyEvent::count(), QEvent::isAccepted(), QKeyEvent::isAutoRepeat(), item, QKeyEvent::key(), QEvent::KeyPress, QEvent::KeyRelease, QKeyEvent::modifiers(), QGraphicsItem::parentItem(), Q_QUICK_INPUT_PROFILE, qt_sendShortcutOverrideEvent(), QCoreApplication::sendEvent(), QEvent::spontaneous(), QKeyEvent::text(), QInputEvent::timestamp(), and QEvent::type().

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◆ deliverMatchingPointsToItem()

void QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem	(	QQuickItem *	item,
		bool	isGrabber,
		QPointerEvent *	pointerEvent,
		bool	handlersOnly = false )

Deliver pointerEvent to item and its handlers, if any. If handlersOnly is true, skip QQuickItem::event() and just visit its handlers via QQuickItemPrivate::handlePointerEvent().

This function exists just to de-duplicate the common code between deliverPressOrReleaseEvent() and deliverUpdatedPoints().

Definition at line 2286 of file qquickdeliveryagent.cpp.

References Qt::AA_SynthesizeMouseForUnhandledTouchEvents, QEvent::accept(), QGraphicsItem::acceptedMouseButtons(), QQuickItemPrivate::acceptedMouseButtons(), QGraphicsItem::acceptTouchEvents(), button, contains(), deliverTouchAsMouse(), QQuickItemPrivate::deliveryAgent(), QPointerEvent::exclusiveGrabber(), exclusiveGrabbers(), QQuickItemPrivate::get(), QQuickItemPrivate::handlePointerEvent(), Qt::hex(), i, QEvent::isAccepted(), QPointerEvent::isBeginEvent(), QGraphicsItem::isEnabled(), QPointerEvent::isEndEvent(), isMouseEvent(), isTouchEvent(), QPointerEvent::isUpdateEvent(), QGraphicsItem::isVisible(), item, lastUngrabbed, Qt::LeftButton, QQuickItemPrivate::localizedTouchEvent(), localizePointerEvent(), QEvent::MouseButtonDblClick, Qt::NoButton, QEvent::None, QTest::QTouchEventSequence::point(), QPointerEvent::point(), QTest::QTouchEventSequence::points, QEventPoint::Pressed, Q_ASSERT, Q_LIKELY, qCDebug, QCoreApplication::sendEvent(), sendFilteredPointerEvent(), QEventPoint::setAccepted(), QPointerEvent::setExclusiveGrabber(), QCoreApplication::testAttribute(), QEvent::type(), and QObjectData::wasDeleted.

Referenced by deliverPressOrReleaseEvent(), and deliverUpdatedPoints().

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◆ deliverPointerEvent()

void QQuickDeliveryAgentPrivate::deliverPointerEvent ( QPointerEvent * event )

The entry point for delivery of event after determining that it is a pointer event, and either does not need to be coalesced in compressTouchEvent(), or already has been.

When it returns, event delivery is done.

Definition at line 1909 of file qquickdeliveryagent.cpp.

References allUpdatedPointsAccepted(), cancelTouchMouseSynthesis(), deliverPressOrReleaseEvent(), deliverUpdatedPoints(), QQuickPointerHandlerPrivate::deviceDeliveryTargets(), ensureDeviceConnected(), eventsInDelivery, i, isSubsceneAgent, isTabletEvent(), isTouchEvent(), lastUngrabbed, QQuickDeliveryAgent::Transform::map(), pointerEventRecursionGuard, QStack< T >::pop(), QStack< T >::push(), qCDebug, QEventPoint::Released, sceneTransform, skipDelivery, and touchMouseId.

Referenced by deliverDelayedTouchEvent(), handleMouseEvent(), and handleTouchEvent().

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◆ deliverPressOrReleaseEvent()

bool QQuickDeliveryAgentPrivate::deliverPressOrReleaseEvent	(	QPointerEvent *	event,
		bool	handlersOnly = false )

Deliver a pointer event containing newly pressed or released QEventPoints. If handlersOnly is true, skip the items and just deliver to Pointer Handlers (via QQuickItemPrivate::handlePointerEvent()).

For the sake of determinism, this function first builds the list targetItems by calling pointerTargets() on the root item. That is, the list of items to "visit" is determined at the beginning, and will not be affected if items reparent, hide, or otherwise try to make themselves eligible or ineligible during delivery. (Avoid bugs due to ugly just-in-time tricks in JS event handlers, filters etc.)

Whenever a touch gesture is in progress, and another touchpoint is pressed, or an existing touchpoint is released, we "start over" with delivery: that's why this function is called whenever the event contains newly pressed or released points. It's not necessary for a handler or an item to greedily grab all touchpoints just in case a valid gesture might start. QQuickMultiPointHandler::wantsPointerEvent() can calmly return false if the number of points is less than QQuickMultiPointHandler::minimumPointCount(), because it knows it will be asked again if the number of points increases.

When handlersOnly is false, event visits the items in targetItems via QQuickItem::event(). We have to call sendFilteredPointerEvent() before visiting each item, just in case a Flickable (or some other parent-filter) will decide to intercept the event. But we also have to be very careful never to let the same Flickable filter the same event twice, because when Flickable decides to intercept, it lets the child item have that event, and then grabs the next event. That allows you to drag a Slider, DragHandler or whatever inside a ListView delegate: if you're dragging in the correct direction for the draggable child, it can use QQuickItem::setKeepMouseGrab(), QQuickItem::setKeepTouchGrab() or QQuickPointerHandler::grabPermissions() to prevent Flickable from intercepting during filtering, only if it actually has the exclusive grab already when Flickable attempts to take it. Typically, both the Flickable and the child are checking the same drag threshold, so the child must have a chance to grab and keep the grab before Flickable gets a chance to steal it, even though Flickable actually sees the event first during filtering.

Definition at line 2213 of file qquickdeliveryagent.cpp.

References cancelTouchMouseSynthesis(), deliverMatchingPointsToItem(), QPointingDevicePrivate::get(), QQuickItemPrivate::get(), hasFiltered, Qt::hex(), i, isDeliveringTouchAsMouse(), isSubsceneAgent, isTouchEvent(), item, mergePointerTargets(), pointerTargets(), qCWarning, rootItem, sendFilteredPointerEvent(), skipDelivery, touchMouseDevice, and touchMouseId.

Referenced by deliverPointerEvent().

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◆ deliverSinglePointEventUntilAccepted()

bool QQuickDeliveryAgentPrivate::deliverSinglePointEventUntilAccepted ( QPointerEvent * event )

Definition at line 1270 of file qquickdeliveryagent.cpp.

References QQuickPointerHandlerPrivate::deviceDeliveryTargets(), QQuickItemPrivate::get(), QQuickItemPrivate::handlePointerEvent(), QEventPoint::isAccepted(), item, localizePointerEvent(), pointerTargets(), Q_ASSERT, qCDebug, rootItem, QCoreApplication::sendEvent(), and QEventPoint::setAccepted().

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◆ deliverToPassiveGrabbers()

void QQuickDeliveryAgentPrivate::deliverToPassiveGrabbers	(	const QVector< QPointer< QObject > > &	passiveGrabbers,
		QPointerEvent *	pointerEvent )

Definition at line 959 of file qquickdeliveryagent.cpp.

References QEvent::accept(), QInputEvent::device(), QQuickPointerHandlerPrivate::deviceDeliveryTargets(), QSet< T >::end(), QPointerEvent::exclusiveGrabber(), hasFiltered, isMouseEvent(), isTouchEvent(), it, localizePointerEvent(), QQuickItem::parentItem(), QPointerEvent::point(), Q_UNLIKELY, qMakePair(), QCoreApplication::sendEvent(), and sendFilteredPointerEvent().

Referenced by deliverUpdatedPoints().

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◆ deliverTouchAsMouse()

bool QQuickDeliveryAgentPrivate::deliverTouchAsMouse	(	QQuickItem *	item,
		QTouchEvent *	pointerEvent )

Definition at line 136 of file qquickdeliveryagent.cpp.

References Qt::AA_SynthesizeMouseForUnhandledTouchEvents, QGraphicsItem::acceptHoverEvents(), cancelTouchMouseSynthesis(), checkIfDoubleTapped(), QGraphicsItem::contains(), deliverHoverEvent(), device, QPointerEvent::exclusiveGrabber(), QQuickItemPrivate::get(), Qt::hex(), QEvent::isAccepted(), QPointF::isNull(), item, QGuiApplicationPrivate::lastCursorPosition, lastMousePosition, QGraphicsItem::mapFromScene(), QInputEvent::modifiers(), QEvent::MouseButtonDblClick, QEvent::MouseButtonPress, QEvent::MouseButtonRelease, QInputDevice::MouseEmulation, QEvent::MouseMove, Qt::NoButton, QGuiApplicationPrivate::platformTheme(), QPointerEvent::pointingDevice(), pos, QEventPoint::Pressed, Q_ASSERT, qCDebug, qInf(), QEventPoint::Released, QSinglePointEvent::scenePosition(), QCoreApplication::sendEvent(), QPointerEvent::setExclusiveGrabber(), QCoreApplication::testAttribute(), QInputEvent::timestamp(), QPlatformTheme::TouchDoubleTapDistance, touchMouseDevice, touchMouseId, touchMousePressPos, touchMousePressTimestamp, QInputDevice::TouchPad, touchToMouseEvent(), QEventPoint::Updated, and QGraphicsItem::window().

Referenced by deliverMatchingPointsToItem().

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◆ deliverTouchCancelEvent()

bool QQuickDeliveryAgentPrivate::deliverTouchCancelEvent ( QTouchEvent * event )

Definition at line 1311 of file qquickdeliveryagent.cpp.

References cancelTouchMouseSynthesis(), QPointingDevicePrivate::get(), and qCDebug.

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◆ deliverUpdatedPoints()

void QQuickDeliveryAgentPrivate::deliverUpdatedPoints ( QPointerEvent * event )

Deliver updated points to existing grabbers.

Definition at line 2084 of file qquickdeliveryagent.cpp.

References allPointsGrabbed(), deliverHoverEventToItem(), deliverMatchingPointsToItem(), deliverToPassiveGrabbers(), done, exclusiveGrabbers(), QPointingDevicePrivate::get(), QQuickItemPrivate::get(), QQuickItemPrivate::handlePointerEvent(), QQuickPointerHandler::handlePointerEvent(), hasFiltered, hoverItems, i, item, localizePointerEvent(), mergePointerTargets(), pointerTargets(), QEventPoint::Pressed, Q_ASSERT, Q_UNLIKELY, qmlobject_cast< QQuickItem * >(), qWarning, rootItem, sendFilteredPointerEvent(), Set, QEvent::TouchUpdate, and QFlatMap< Key, T, Compare, KeyContainer, MappedContainer >::value().

Referenced by deliverPointerEvent().

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◆ deviceExtra()

QQuickPointingDeviceExtra * QQuickDeliveryAgentPrivate::deviceExtra ( const QInputDevice * device )

static

Definition at line 1509 of file qquickdeliveryagent.cpp.

References QObject::connect(), QObject::destroyed(), device, and QInputDevicePrivate::get().

Referenced by QQuickPointerHandlerPrivate::deviceDeliveryTargets().

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◆ dragOverThreshold() [1/3]

bool QQuickDeliveryAgentPrivate::dragOverThreshold	(	qreal	d,
		Qt::Axis	axis,
		const QEventPoint &	tp,
		int	startDragThreshold = -1 )

static

Returns true if the movement delta d in pixels along the axis exceeds startDragThreshold if it is set, or QStyleHints::startDragDistance(); or, if QEventPoint::velocity() of tp exceeds QStyleHints::startDragVelocity().

See also: QQuickPointerHandlerPrivate::dragOverThreshold()

Definition at line 2791 of file qquickdeliveryagent.cpp.

References d, qAbs(), qApp, QStyleHints::startDragDistance, QStyleHints::startDragVelocity, QEventPoint::velocity, QVector2D::x(), Qt::XAxis, and QVector2D::y().

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◆ dragOverThreshold() [2/3]

bool QQuickDeliveryAgentPrivate::dragOverThreshold	(	qreal	d,
		Qt::Axis	axis,
		QMouseEvent *	event,
		int	startDragThreshold = -1 )

static

Returns true if the movement delta d in pixels along the axis exceeds startDragThreshold if it is set, or QStyleHints::startDragDistance(); or, if QEventPoint::velocity() of event exceeds QStyleHints::startDragVelocity().

See also: QQuickPointerHandlerPrivate::dragOverThreshold()

Definition at line 2770 of file qquickdeliveryagent.cpp.

References d, qAbs(), QStyleHints::startDragDistance, QStyleHints::startDragVelocity, QGuiApplication::styleHints(), QInputDevice::Velocity, QVector2D::x(), and Qt::XAxis.

Referenced by QQuickWindowPrivate::dragOverThreshold(), QQuickWindowPrivate::dragOverThreshold(), QQuickPathViewPrivate::handleMouseMoveEvent(), QQuickFlickablePrivate::handleMoveEvent(), and QQuickMouseArea::mouseMoveEvent().

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◆ dragOverThreshold() [3/3]

bool QQuickDeliveryAgentPrivate::dragOverThreshold ( QVector2D delta )

static

Returns true if the movement delta in pixels exceeds QStyleHints::startDragDistance().

See also: QQuickDeliveryAgentPrivate::dragOverThreshold()

Definition at line 2808 of file qquickdeliveryagent.cpp.

References qAbs(), qApp, QVector2D::x(), and QVector2D::y().

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◆ ensureDeviceConnected()

void QQuickDeliveryAgentPrivate::ensureDeviceConnected ( const QPointingDevice * dev )

Called when a QPointingDevice is detected, to ensure that the QPointingDevice::grabChanged() signal is connected to QQuickDeliveryAgentPrivate::onGrabChanged().

knownPointingDevices is maintained only to track signal connections, and should not be used for other purposes. The usual place to get a list of all devices is QInputDevice::devices().

Definition at line 1892 of file qquickdeliveryagent.cpp.

References QList< T >::append(), QObject::connect(), QObjectPrivate::connect(), QListSpecialMethodsBase< T >::contains(), QObject::destroyed(), QPointingDevice::grabChanged(), knownPointingDevices, onGrabChanged(), and QList< T >::removeAll().

Referenced by deliverPointerEvent().

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◆ eventInDelivery()

QPointerEvent * QQuickDeliveryAgentPrivate::eventInDelivery ( ) const

Deprecated: events are handled by methods in which the event is an argument

Accessor for use by legacy methods such as QQuickItem::grabMouse(), QQuickItem::ungrabMouse(), and QQuickItem::grabTouchPoints() which are not given sufficient context to do the grabbing. We should remove eventsInDelivery in Qt 7.

Definition at line 109 of file qquickdeliveryagent.cpp.

References eventsInDelivery, QList< T >::isEmpty(), and QStack< T >::top().

Referenced by removeGrabber().

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◆ exclusiveGrabbers()

QList< QObject * > QQuickDeliveryAgentPrivate::exclusiveGrabbers ( QPointerEvent * ev )

Definition at line 1410 of file qquickdeliveryagent.cpp.

Referenced by deliverMatchingPointsToItem(), and deliverUpdatedPoints().

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◆ flushFrameSynchronousEvents()

void QQuickDeliveryAgentPrivate::flushFrameSynchronousEvents ( QQuickWindow * win )

Flush events before a frame is rendered in win.

This is here because of compressTouchEvent(): we need to ensure that coalesced touch events are actually delivered in time to cause the desired reactions of items and their handlers. And then since it was introduced because of that, we started using this function for once-per-frame hover events too, to take care of changing hover state when an item animates under the mouse cursor at a time that the mouse cursor is not moving.

This is done before QQuickItem::updatePolish() is called on all the items that requested polishing.

See also: qq-hover-event-delivery

Definition at line 1733 of file qquickdeliveryagent.cpp.

References currentEventDeliveryAgent, delayedTouch, deliverDelayedTouchEvent(), deliverHoverEvent(), frameSynchronousHoverEnabled, QQuickWindowPrivate::get(), QQmlAnimationTimer::instance(), QPointF::isNull(), QGuiApplication::keyboardModifiers(), lastMousePosition, QQuickDeliveryAgent::Transform::map(), Q_UNLIKELY, Q_UNUSED, qCDebug, qCWarning, rootItem, sceneTransform, win, and QQuickItem::window().

Referenced by QQuickRenderControl::polishItems(), QSGOpenVGRenderLoop::renderWindow(), QSGGuiThreadRenderLoop::renderWindow(), and QSGSoftwareRenderLoop::renderWindow().

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◆ focusTargetItem()

QQuickItem * QQuickDeliveryAgentPrivate::focusTargetItem ( ) const

Returns the item that should get active focus when the root focus scope gets active focus.

Definition at line 659 of file qquickdeliveryagent.cpp.

References activeFocusItem, QQuickItem::isEnabled(), QQuickItem::isFocusScope(), Q_ASSERT, rootItem, and QQuickItem::scopedFocusItem().

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◆ handleMouseEvent()

void QQuickDeliveryAgentPrivate::handleMouseEvent ( QMouseEvent * event )

Handle event on behalf of this delivery agent's window or subscene.

Definition at line 1662 of file qquickdeliveryagent.cpp.

References allowSyntheticRightClick(), deliverHoverEvent(), deliverPointerEvent(), QQuickWindowPrivate::get(), QPointF::isNull(), lastMousePosition, QEvent::MouseButtonDblClick, QEvent::MouseButtonPress, QEvent::MouseButtonRelease, Qt::MouseEventSynthesizedBySystem, QEvent::MouseMove, Q_ASSERT, Q_QUICK_INPUT_PROFILE, qCDebug, Qt::RightButton, rootItem, and QQuickItem::window().

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◆ handleTouchEvent()

void QQuickDeliveryAgentPrivate::handleTouchEvent ( QTouchEvent * event )

Definition at line 1627 of file qquickdeliveryagent.cpp.

References compressTouchEvent(), delayedTouch, deliverDelayedTouchEvent(), deliverPointerEvent(), lastMousePosition, pointerEventRecursionGuard, qCDebug, qEnvironmentVariableIsSet(), QEventPoint::Released, and translateTouchEvent().

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◆ handleWindowDeactivate()

void QQuickDeliveryAgentPrivate::handleWindowDeactivate ( QQuickWindow * win )

The handler for the QEvent::WindowDeactivate event, and also when Qt::ApplicationState tells us the application is no longer active. It clears all exclusive grabs of items and handlers whose window is this one, for all known pointing devices.

The QEvent is not passed into this function because in the first case it's just a plain QEvent with no extra data, and because the application state change is delivered via a signal rather than an event.

Definition at line 1347 of file qquickdeliveryagent.cpp.

References device, QInputDevice::devices(), QPointingDevicePrivate::get(), item, qCDebug, win, and QGraphicsItem::window().

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◆ handleWindowHidden()

void QQuickDeliveryAgentPrivate::handleWindowHidden ( QQuickWindow * win )

Definition at line 1378 of file qquickdeliveryagent.cpp.

References clearHover(), lastMousePosition, qCDebug, and win.

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◆ isDeliveringTouchAsMouse()

bool QQuickDeliveryAgentPrivate::isDeliveringTouchAsMouse ( ) const

inline

Definition at line 111 of file qquickdeliveryagent_p_p.h.

Referenced by deliverPressOrReleaseEvent(), mousePointData(), and onGrabChanged().

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◆ isEventFromMouseOrTouchpad()

bool QQuickDeliveryAgentPrivate::isEventFromMouseOrTouchpad ( const QPointerEvent * ev )

static

Definition at line 1497 of file qquickdeliveryagent.cpp.

References QInputDevice::Mouse, and QInputDevice::TouchPad.

Referenced by isSynthMouse(), QQuickTextInput::mouseDoubleClickEvent(), QQuickTextControlPrivate::mouseDoubleClickEvent(), QQuickTextInput::mouseMoveEvent(), QQuickTextField::mouseMoveEvent(), QQuickTextControlPrivate::mouseMoveEvent(), QQuickTextEdit::mousePressEvent(), QQuickTextInput::mousePressEvent(), QQuickTextControlPrivate::mousePressEvent(), QQuickTextInput::mouseReleaseEvent(), and QQuickTextControlPrivate::mouseReleaseEvent().

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◆ isHoverEvent()

bool QQuickDeliveryAgentPrivate::isHoverEvent ( const QPointerEvent * ev )

static

Definition at line 1458 of file qquickdeliveryagent.cpp.

References QEvent::HoverEnter, QEvent::HoverLeave, and QEvent::HoverMove.

◆ isMouseEvent()

bool QQuickDeliveryAgentPrivate::isMouseEvent ( const QPointerEvent * ev )

static

Definition at line 1440 of file qquickdeliveryagent.cpp.

References QEvent::MouseButtonDblClick, QEvent::MouseButtonPress, QEvent::MouseButtonRelease, and QEvent::MouseMove.

Referenced by QQuickPointerHandler::approveGrabTransition(), QQuickPathView::childMouseEventFilter(), deliverMatchingPointsToItem(), deliverToPassiveGrabbers(), QQuickMultiPointHandler::eligiblePoints(), QQuickFlickable::filterPointerEvent(), QQuickDragHandler::handlePointerEventImpl(), isMouseOrWheelEvent(), isSynthMouse(), sendFilteredPointerEventImpl(), QQuickTapHandler::wantsEventPoint(), and QQuickHoverHandler::wantsPointerEvent().

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◆ isMouseOrWheelEvent()

bool QQuickDeliveryAgentPrivate::isMouseOrWheelEvent ( const QPointerEvent * ev )

static

Definition at line 1453 of file qquickdeliveryagent.cpp.

References isMouseEvent(), and QEvent::Wheel.

Referenced by QQuickItemPrivate::handlePointerEvent().

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◆ isSynthMouse()

bool QQuickDeliveryAgentPrivate::isSynthMouse ( const QPointerEvent * ev )

static

Definition at line 1504 of file qquickdeliveryagent.cpp.

References isEventFromMouseOrTouchpad(), and isMouseEvent().

Referenced by QQuickWindow::event().

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◆ isTabletEvent()

bool QQuickDeliveryAgentPrivate::isTabletEvent ( const QPointerEvent * ev )

static

Definition at line 1483 of file qquickdeliveryagent.cpp.

References QEvent::TabletEnterProximity, QEvent::TabletLeaveProximity, QEvent::TabletMove, QEvent::TabletPress, and QEvent::TabletRelease.

Referenced by QQuickWindowPrivate::clearGrabbers(), deliverPointerEvent(), QQuickFlickable::filterPointerEvent(), QQuickHoverHandler::handleEventPoint(), QQuickHandlerPoint::reset(), and QQuickTapHandler::wantsEventPoint().

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◆ isTouchEvent()

bool QQuickDeliveryAgentPrivate::isTouchEvent ( const QPointerEvent * ev )

static

Definition at line 1470 of file qquickdeliveryagent.cpp.

References QEvent::TouchBegin, QEvent::TouchCancel, QEvent::TouchEnd, and QEvent::TouchUpdate.

Referenced by QQuickPointerHandler::approveGrabTransition(), deliverMatchingPointsToItem(), deliverPointerEvent(), deliverPressOrReleaseEvent(), deliverToPassiveGrabbers(), QQuickWindow::event(), QQuickFlickable::filterPointerEvent(), QQuickPointHandler::handleEventPoint(), QQuickTapHandler::handleEventPoint(), QQuickDragHandler::handlePointerEventImpl(), QQuickDragHandler::onActiveChanged(), QQuickHandlerPoint::reset(), sendFilteredPointerEventImpl(), and QQuickTapHandler::wantsEventPoint().

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◆ localizePointerEvent()

void QQuickDeliveryAgentPrivate::localizePointerEvent	(	QPointerEvent *	ev,
		const QQuickItem *	dest )

static

Localize ev for delivery to dest.

Unlike QMutableTouchEvent::localized(), this modifies the QEventPoint instances in ev, which is more efficient than making a copy.

Definition at line 1400 of file qquickdeliveryagent.cpp.

References i, QQuickItem::mapFromScene(), QQuickItem::mapToScene(), and qCDebug.

Referenced by QQuickFlickable::childMouseEventFilter(), deliverMatchingPointsToItem(), deliverSinglePointEventUntilAccepted(), deliverToPassiveGrabbers(), deliverUpdatedPoints(), and sendFilteredPointerEventImpl().

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◆ mergePointerTargets()

QVector< QQuickItem * > QQuickDeliveryAgentPrivate::mergePointerTargets	(	const QVector< QQuickItem * > &	list1,
		const QVector< QQuickItem * > &	list2 ) const

Returns a joined list consisting of the items in list1 and list2. list1 has priority; common items come last.

Definition at line 2061 of file qquickdeliveryagent.cpp.

References QList< T >::at(), i, list2, Q_ASSERT, and QList< T >::size().

Referenced by deliverPressOrReleaseEvent(), and deliverUpdatedPoints().

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◆ mousePointData()

QPointingDevicePrivate::EventPointData * QQuickDeliveryAgentPrivate::mousePointData ( )

A helper function for the benefit of obsolete APIs like QQuickItem::grabMouse() that don't have the currently-being-delivered event in context. Returns the device the currently-being-delivered event comse from.

Definition at line 121 of file qquickdeliveryagent.cpp.

References eventsInDelivery, QPointingDevicePrivate::get(), isDeliveringTouchAsMouse(), QList< T >::isEmpty(), QPointerEvent::pointingDevice(), QStack< T >::top(), and touchMouseId.

Referenced by removeGrabber().

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◆ notifyFocusChangesRecur()

void QQuickDeliveryAgentPrivate::notifyFocusChangesRecur	(	QQuickItem **	item,
		int	remaining,
		Qt::FocusReason	reason )

static

Definition at line 596 of file qquickdeliveryagent.cpp.

References QQuickItemPrivate::activeFocus, emit, QQuickItemPrivate::Focus, QQuickItemPrivate::focus, QQuickItemPrivate::get(), item, QQuickItem::ItemActiveFocusHasChanged, QQuickItemPrivate::itemChange(), QQuickItemChangeListener::itemFocusChanged(), items, QQuickItemPrivate::notifiedActiveFocus, QQuickItemPrivate::notifiedFocus, QQuickItemPrivate::notifyChangeListeners(), and notifyFocusChangesRecur().

Referenced by clearFocusInScope(), notifyFocusChangesRecur(), QQuickItem::setFocus(), and setFocusInScope().

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◆ onGrabChanged()

void QQuickDeliveryAgentPrivate::onGrabChanged	(	QObject *	grabber,
		QPointingDevice::GrabTransition	transition,
		const QPointerEvent *	event,
		const QEventPoint &	point )

React to the fact that grabber underwent a grab transition while an item or handler was handling point from event. I.e. handle the QPointingDevice::grabChanged() signal.

This notifies the relevant items and/or pointer handlers, and does cleanup when grabs are lost or relinquished.

Definition at line 1787 of file qquickdeliveryagent.cpp.

References QPointingDevice::CancelGrabExclusive, QPointingDevice::CancelGrabPassive, currentEventDeliveryAgent, QEventPoint::device, QPointingDevicePrivate::get(), QQuickItemPrivate::get(), QPointingDevice::GrabExclusive, QPointingDevice::GrabPassive, hasFiltered, QEventPoint::id, isDeliveringTouchAsMouse(), isSubsceneAgent, lastUngrabbed, QInputDevice::Mouse, QQuickItem::mouseUngrabEvent(), QPointingDevice::OverrideGrabPassive, Q_ASSERT, qCDebug, QEventPoint::Released, sendFilteredMouseEvent(), QPointingDevicePrivate::setPassiveGrabberContext(), QInputDevice::TouchPad, QInputDevice::TouchScreen, QInputDevice::type, QPointingDevice::UngrabExclusive, QEvent::UngrabMouse, and QPointingDevice::UngrabPassive.

Referenced by ensureDeviceConnected().

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◆ pointerTargets()

QVector< QQuickItem * > QQuickDeliveryAgentPrivate::pointerTargets	(	QQuickItem *	item,
		const QPointerEvent *	event,
		const QEventPoint &	point,
		bool	checkMouseButtons,
		bool	checkAcceptsTouch ) const

Returns a list of all items that are spatially relevant to receive event occurring at point, starting with item and recursively checking all the children. \list

If an item has pointer handlers, call QQuickPointerHandler::wantsEventPoint() on every handler to decide whether the item is eligible.
Otherwise, if checkMouseButtons is true, it means we are finding targets for a mouse event, so no item for which acceptedMouseButtons() is NoButton will be added.
Otherwise, if checkAcceptsTouch is true, it means we are finding targets for a touch event, so either acceptTouchEvents() must return true or it must accept a synthesized mouse event. I.e. if acceptTouchEvents() returns false, it gets added only if acceptedMouseButtons() is true.
If QQuickItem::clip() is true and the point is outside of QQuickItem::clipRect(), its children are also omitted. (We stop the recursion, because any clipped-off portions of children under point are invisible.)
Ignore any item in a subscene that "belongs to" a different DeliveryAgent. (In current practice, this only happens in 2D scenes in Qt Quick 3D.) \endlist

The list returned from this function is the list of items that will be "visited" when delivering any event for which QPointerEvent::isBeginEvent() is true.

Definition at line 2008 of file qquickdeliveryagent.cpp.

References QGraphicsItem::acceptedMouseButtons(), QGraphicsItem::acceptTouchEvents(), QList< T >::at(), QList< T >::begin(), child, QObjectData::children, QGraphicsItem::contains(), QList< T >::end(), QQuickItemPrivate::get(), QEventPoint::id, QList< T >::insert(), it, item, QQuickItem::ItemClipsChildrenToShape, QGraphicsItem::mapFromScene(), Qt::NoButton, pointerTargets(), qCDebug, QEventPoint::scenePosition, and QList< T >::size().

Referenced by deliverPressOrReleaseEvent(), deliverSinglePointEventUntilAccepted(), deliverUpdatedPoints(), and pointerTargets().

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◆ removeGrabber()

void QQuickDeliveryAgentPrivate::removeGrabber	(	QQuickItem *	grabber,
		bool	mouse = true,
		bool	touch = true,
		bool	cancel = false )

Ungrabs all touchpoint grabs and/or the mouse grab from the given item grabber.

This should not be called when processing a release event - that's redundant. It is called in other cases, when the points may not be released, but the item nevertheless must lose its grab due to becoming disabled, invisible, etc. QPointerEvent::setExclusiveGrabber() calls touchUngrabEvent() when all points are released, but if not all points are released, it cannot be sure whether to call touchUngrabEvent() or not; so we have to do it here.

Definition at line 263 of file qquickdeliveryagent.cpp.

References cancel(), device, QInputDevice::devices(), eventInDelivery(), eventsInDelivery, QPointingDevicePrivate::get(), QList< T >::isEmpty(), knownPointingDevices, mousePointData(), Q_LIKELY, qCDebug, qobject_cast< QQuickItem * >(), QPointerEvent::setExclusiveGrabber(), QStack< T >::top(), and QInputDevice::TouchScreen.

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◆ sendFilteredMouseEvent()

bool QQuickDeliveryAgentPrivate::sendFilteredMouseEvent	(	QEvent *	event,
		QQuickItem *	receiver,
		QQuickItem *	filteringParent )

Allow filteringParent to filter event on behalf of receiver, via QQuickItem::childMouseEventFilter(). This happens right before we would send event to receiver.

Returns true only if event has been intercepted (by filteringParent or some other filtering ancestor) and should not be sent to receiver.

Unlike sendFilteredPointerEvent(), this version does not synthesize a mouse event from touch (presumably it's already an actual mouse event).

Definition at line 2741 of file qquickdeliveryagent.cpp.

References QQuickItemPrivate::get(), hasFiltered, QQuickItem::parentItem(), qCDebug, sendFilteredMouseEvent(), and skipDelivery.

Referenced by onGrabChanged(), sendFilteredMouseEvent(), and sendHoverEvent().

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◆ sendFilteredPointerEvent()

bool QQuickDeliveryAgentPrivate::sendFilteredPointerEvent	(	QPointerEvent *	event,
		QQuickItem *	receiver,
		QQuickItem *	filteringParent = nullptr )

Allow filteringParent to filter event on behalf of receiver, via QQuickItem::childMouseEventFilter(). This happens right before we would send event to receiver.

Returns true only if event has been intercepted (by filteringParent or some other filtering ancestor) and should not be sent to receiver.

Definition at line 2597 of file qquickdeliveryagent.cpp.

References QQuickItem::parentItem(), and sendFilteredPointerEventImpl().

Referenced by deliverMatchingPointsToItem(), deliverPressOrReleaseEvent(), deliverToPassiveGrabbers(), and deliverUpdatedPoints().

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◆ sendFilteredPointerEventImpl()

bool QQuickDeliveryAgentPrivate::sendFilteredPointerEventImpl	(	QPointerEvent *	event,
		QQuickItem *	receiver,
		QQuickItem *	filteringParent )

The recursive implementation of sendFilteredPointerEvent().

Definition at line 2605 of file qquickdeliveryagent.cpp.

References Qt::AA_SynthesizeMouseForUnhandledTouchEvents, QQuickItem::acceptedMouseButtons(), QQuickItem::acceptTouchEvents(), allowChildEventFiltering, cancelTouchMouseSynthesis(), device, QQuickItemPrivate::get(), hasFiltered, Qt::hex(), QEvent::isAccepted(), isMouseEvent(), isTouchEvent(), QQuickItem::keepTouchGrab(), localizePointerEvent(), QEvent::MouseButtonPress, QEvent::MouseButtonRelease, QInputDevice::MouseEmulation, QEvent::MouseMove, QQuickItem::mouseUngrabEvent(), QEvent::None, QQuickItem::parentItem(), QPointerEvent::point(), QEventPoint::Pressed, Q_ASSERT, Q_LIKELY, qCDebug, qobject_cast< const QQuickItem * >(), QEventPoint::Released, sendFilteredPointerEventImpl(), QEventPoint::setAccepted(), skipDelivery, QEventPoint::Stationary, QCoreApplication::testAttribute(), touchMouseDevice, touchMouseId, QInputDevice::TouchPad, and touchToMouseEvent().

Referenced by sendFilteredPointerEvent(), and sendFilteredPointerEventImpl().

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◆ sendHoverEvent()

bool QQuickDeliveryAgentPrivate::sendHoverEvent	(	QEvent::Type	type,
		QQuickItem *	item,
		const QPointF &	scenePos,
		const QPointF &	lastScenePos,
		Qt::KeyboardModifiers	modifiers,
		ulong	timestamp )

Definition at line 1008 of file qquickdeliveryagent.cpp.

References QQuickItemPrivate::get(), hasFiltered, QEvent::isAccepted(), item, QGraphicsItem::parentItem(), QPointerEvent::point(), QCoreApplication::sendEvent(), sendFilteredMouseEvent(), QPointerEvent::setAccepted(), and QPointerEvent::setTimestamp().

Referenced by deliverHoverEventToItem().

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◆ setFocusInScope()

void QQuickDeliveryAgentPrivate::setFocusInScope	(	QQuickItem *	scope,
		QQuickItem *	item,
		Qt::FocusReason	reason,
		FocusOptions	options = { } )

Set the focus inside scope to be item.

If the scope contains the active focus item, it will be changed to item. Calls notifyFocusChangesRecur for all changed items.

Definition at line 350 of file qquickdeliveryagent.cpp.

References activeFocusItem, DontChangeFocusProperty, DontChangeSubFocusItem, emit, findFurthestFocusScopeAncestor(), QQuickItemPrivate::Focus, QQuickItemPrivate::focus, QEvent::FocusIn, QWindow::focusObjectChanged(), QEvent::FocusOut, QQuickItemPrivate::get(), QQuickWindowPrivate::get(), QQuickItem::hasFocus(), QGuiApplication::inputMethod(), QGraphicsItem::isEnabled(), isSubsceneAgent, item, QQuickItemChangeListener::itemFocusChanged(), lastFocusReason, QQuickItemPrivate::notifyChangeListeners(), notifyFocusChangesRecur(), QQuickItem::parentItem(), priv(), Q_ASSERT, qCDebug, rootItem, QCoreApplication::sendEvent(), updateFocusItemTransform(), QQuickItem::window(), and windowHasFocus().

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◆ touchToMouseEvent()

void QQuickDeliveryAgentPrivate::touchToMouseEvent	(	QEvent::Type	type,
		const QEventPoint &	p,
		const QTouchEvent *	touchEvent,
		QMutableSinglePointEvent *	mouseEvent )