diff --git a/src/qmlcontrols/draganddrop/DeclarativeDropArea.cpp b/src/qmlcontrols/draganddrop/DeclarativeDropArea.cpp index 540d112..2f4a773 100644 --- a/src/qmlcontrols/draganddrop/DeclarativeDropArea.cpp +++ b/src/qmlcontrols/draganddrop/DeclarativeDropArea.cpp @@ -1,167 +1,166 @@ /* Copyright (C) 2010 by BetterInbox Original author: Gregory Schlomoff Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "DeclarativeDropArea.h" #include "DeclarativeDragDropEvent.h" #include DeclarativeDropArea::DeclarativeDropArea(QQuickItem *parent) : QQuickItem(parent), m_enabled(true), m_preventStealing(false), m_temporaryInhibition(false), m_containsDrag(false) { setFlag(ItemAcceptsDrops, m_enabled); } void DeclarativeDropArea::temporaryInhibitParent(bool inhibit) { QQuickItem *candidate = parentItem(); while (candidate) { if (DeclarativeDropArea *da = qobject_cast(candidate)) { da->m_temporaryInhibition = inhibit; if (inhibit) { emit da->dragLeaveEvent(nullptr); } } candidate = candidate->parentItem(); } } void DeclarativeDropArea::dragEnterEvent(QDragEnterEvent *event) { if (!m_enabled || m_temporaryInhibition) { return; } DeclarativeDragDropEvent dde(event, this); event->accept(); emit dragEnter(&dde); if (!event->isAccepted()) { return; } if (m_preventStealing) { temporaryInhibitParent(true); } m_oldDragMovePos = event->pos(); setContainsDrag(true); } void DeclarativeDropArea::dragLeaveEvent(QDragLeaveEvent *event) { //do it anyways, in the unlikely case m_preventStealing //was changed while drag temporaryInhibitParent(false); m_oldDragMovePos = QPoint(-1,-1); DeclarativeDragDropEvent dde(event, this); emit dragLeave(&dde); setContainsDrag(false); } void DeclarativeDropArea::dragMoveEvent(QDragMoveEvent *event) { if (!m_enabled || m_temporaryInhibition) { + event->ignore(); return; } - + event->accept(); //if the position we export didn't change, don't generate the move event if (event->pos() == m_oldDragMovePos) { - event->setAccepted(false); return; } m_oldDragMovePos = event->pos(); DeclarativeDragDropEvent dde(event, this); - event->accept(); emit dragMove(&dde); } void DeclarativeDropArea::dropEvent(QDropEvent *event) { //do it anyways, in the unlikely case m_preventStealing //was changed while drag, do it after a loop, //so the parent dropevent doesn't get delivered metaObject()->invokeMethod(this, "temporaryInhibitParent", Qt::QueuedConnection, Q_ARG(bool, false)); m_oldDragMovePos = QPoint(-1,-1); if (!m_enabled || m_temporaryInhibition) { return; } DeclarativeDragDropEvent dde(event, this); emit drop(&dde); setContainsDrag(false); } bool DeclarativeDropArea::isEnabled() const { return m_enabled; } void DeclarativeDropArea::setEnabled(bool enabled) { if (enabled == m_enabled) { return; } m_enabled = enabled; setFlag(ItemAcceptsDrops, m_enabled); emit enabledChanged(); } bool DeclarativeDropArea::preventStealing() const { return m_preventStealing; } void DeclarativeDropArea::setPreventStealing(bool prevent) { if (prevent == m_preventStealing) { return; } m_preventStealing = prevent; emit preventStealingChanged(); } void DeclarativeDropArea::setContainsDrag(bool dragging) { if (m_containsDrag != dragging) { m_containsDrag = dragging; Q_EMIT containsDragChanged(m_containsDrag); } } bool DeclarativeDropArea::containsDrag() const { return m_containsDrag; }