Revision control
++ // Copyright (C) 2016 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
++ // Qt-Security score:significant reason:default
++
++ #include "qplatformdrag.h"
++
++ #include <QtGui/private/qdnd_p.h>
++ #include <QtGui/QKeyEvent>
++ #include <QtGui/QGuiApplication>
++ #include <QtCore/QEventLoop>
++
++ QT_BEGIN_NAMESPACE
++
++ #ifdef QDND_DEBUG
++ # include <QtCore/QDebug>
++ #endif
++
++ QPlatformDropQtResponse::QPlatformDropQtResponse(bool accepted, Qt::DropAction acceptedAction)
++ : m_accepted(accepted)
++ , m_accepted_action(acceptedAction)
++ {
++ }
++
++ bool QPlatformDropQtResponse::isAccepted() const
++ {
++ return m_accepted;
++ }
++
++ Qt::DropAction QPlatformDropQtResponse::acceptedAction() const
++ {
++ return m_accepted_action;
++ }
++
++ QPlatformDragQtResponse::QPlatformDragQtResponse(bool accepted, Qt::DropAction acceptedAction, QRect answerRect)
++ : QPlatformDropQtResponse(accepted,acceptedAction)
++ , m_answer_rect(answerRect)
++ {
++ }
++
++ QRect QPlatformDragQtResponse::answerRect() const
++ {
++ return m_answer_rect;
++ }
++
++ class QPlatformDragPrivate {
++ public:
++ QPlatformDragPrivate() : cursor_drop_action(Qt::IgnoreAction) {}
++
++ Qt::DropAction cursor_drop_action;
++ };
++
++ /*!
++ \class QPlatformDrag
++ \since 5.0
++ \internal
++ \preliminary
++ \ingroup qpa
++
++ \brief The QPlatformDrag class provides an abstraction for drag.
++ */
++ QPlatformDrag::QPlatformDrag() : d_ptr(new QPlatformDragPrivate)
++ {
++ }
++
++ QPlatformDrag::~QPlatformDrag()
++ {
++ delete d_ptr;
++ }
++
++ QDrag *QPlatformDrag::currentDrag() const
++ {
++ return QDragManager::self()->object();
++ }
++
++ Qt::DropAction QPlatformDrag::defaultAction(Qt::DropActions possibleActions,
++ Qt::KeyboardModifiers modifiers) const
++ {
++ #ifdef QDND_DEBUG
++ qDebug() << "QDragManager::defaultAction(Qt::DropActions possibleActions)\nkeyboard modifiers : " << modifiers;
++ #endif
++
++ Qt::DropAction default_action = Qt::IgnoreAction;
++
++ if (currentDrag()) {
++ default_action = currentDrag()->defaultAction();
++ }
++
++
++ if (default_action == Qt::IgnoreAction) {
++ //This means that the drag was initiated by QDrag::start and we need to
++ //preserve the old behavior
++ default_action = Qt::CopyAction;
++ }
++
++ if (modifiers & Qt::ControlModifier && modifiers & Qt::ShiftModifier)
++ default_action = Qt::LinkAction;
++ else if (modifiers & Qt::ControlModifier)
++ default_action = Qt::CopyAction;
++ else if (modifiers & Qt::ShiftModifier)
++ default_action = Qt::MoveAction;
++ else if (modifiers & Qt::AltModifier)
++ default_action = Qt::LinkAction;
++
++ #ifdef QDND_DEBUG
++ qDebug() << "possible actions : " << possibleActions;
++ #endif
++
++ // Check if the action determined is allowed
++ if (!(possibleActions & default_action)) {
++ if (possibleActions & Qt::CopyAction)
++ default_action = Qt::CopyAction;
++ else if (possibleActions & Qt::MoveAction)
++ default_action = Qt::MoveAction;
++ else if (possibleActions & Qt::LinkAction)
++ default_action = Qt::LinkAction;
++ else
++ default_action = Qt::IgnoreAction;
++ }
++
++ #ifdef QDND_DEBUG
++ qDebug() << "default action : " << default_action;
++ #endif
++
++ return default_action;
++ }
++
++ /*!
++ \brief Cancels the currently active drag (only for drags of
++ the current application initiated by QPlatformDrag::drag()).
++
++ The default implementation does nothing.
++
++ \since 5.7
++ */
++
++ void QPlatformDrag::cancelDrag()
++ {
++ Q_UNIMPLEMENTED();
++ }
++
++ /*!
++ \brief Called to notify QDrag about changes of the current action.
++ */
++
++ void QPlatformDrag::updateAction(Qt::DropAction action)
++ {
++ Q_D(QPlatformDrag);
++ if (d->cursor_drop_action != action) {
++ d->cursor_drop_action = action;
++ emit currentDrag()->actionChanged(action);
++ }
++ }
++
++ static const char *const default_pm[] = {
++ "13 9 3 1",
++ ". c None",
++ " c #000000",
++ "X c #FFFFFF",
++ "X X X X X X X",
++ " X X X X X X ",
++ "X ......... X",
++ " X.........X ",
++ "X ......... X",
++ " X.........X ",
++ "X ......... X",
++ " X X X X X X ",
++ "X X X X X X X",
++ };
++
++ Q_GLOBAL_STATIC_WITH_ARGS(QPixmap,qt_drag_default_pixmap,(default_pm))
++
++ QPixmap QPlatformDrag::defaultPixmap()
++ {
++ return *qt_drag_default_pixmap();
++ }
++
++ /*!
++ \since 5.4
++ \brief Returns bool indicating whether QPlatformDrag takes ownership
++ and therefore responsibility of deleting the QDrag object passed in
++ from QPlatformDrag::drag. This can be useful on platforms where QDrag
++ object has to be kept around.
++ */
++ bool QPlatformDrag::ownsDragObject() const
++ {
++ return false;
++ }
++
++ QT_END_NAMESPACE