1 files changed, 158 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qxcbdrag.h b/src/plugins/platforms/xcb/qxcbdrag.h
new file mode 100644
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+++ b/src/plugins/platforms/xcb/qxcbdrag.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 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 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QXCBDRAG_H
+#define QXCBDRAG_H
+
+#include <qplatformdrag_qpa.h>
+#include <qxcbobject.h>
+#include <xcb/xcb.h>
+#include <qlist.h>
+#include <qpoint.h>
+#include <qrect.h>
+#include <qsharedpointer.h>
+#include <qvector.h>
+
+QT_BEGIN_NAMESPACE
+
+class QMouseEvent;
+class QWindow;
+class QXcbConnection;
+class QXcbWindow;
+class QDropData;
+class QXcbScreen;
+class QDrag;
+
+class QXcbDrag : public QObject, public QXcbObject, public QPlatformDrag
+{
+public:
+    QXcbDrag(QXcbConnection *c);
+    ~QXcbDrag();
+
+    virtual QMimeData *platformDropData();
+
+//    virtual Qt::DropAction drag(QDrag *);
+
+    virtual void startDrag();
+    virtual void cancel();
+    virtual void move(const QMouseEvent *me);
+    virtual void drop(const QMouseEvent *me);
+    void endDrag();
+
+    void handleEnter(QWindow *window, const xcb_client_message_event_t *event);
+    void handlePosition(QWindow *w, const xcb_client_message_event_t *event, bool passive);
+    void handleLeave(QWindow *w, const xcb_client_message_event_t *event, bool /*passive*/);
+    void handleDrop(QWindow *, const xcb_client_message_event_t *event, bool passive);
+
+    void handleStatus(const xcb_client_message_event_t *event, bool passive);
+    void handleSelectionRequest(const xcb_selection_request_event_t *event);
+    void handleFinished(const xcb_client_message_event_t *event, bool passive);
+
+    bool dndEnable(QXcbWindow *win, bool on);
+
+protected:
+    void timerEvent(QTimerEvent* e);
+
+private:
+    friend class QDropData;
+
+    void init();
+
+    void handle_xdnd_position(QWindow *w, const xcb_client_message_event_t *event, bool passive);
+    void handle_xdnd_status(const xcb_client_message_event_t *event, bool);
+    void send_leave();
+
+    Qt::DropAction toDropAction(xcb_atom_t atom) const;
+    xcb_atom_t toXdndAction(Qt::DropAction a) const;
+
+    QWeakPointer<QWindow> currentWindow;
+    QPoint currentPosition;
+
+    QDropData *dropData;
+
+    QWindow *desktop_proxy;
+
+    xcb_atom_t xdnd_dragsource;
+
+    // the types in this drop. 100 is no good, but at least it's big.
+    enum { xdnd_max_type = 100 };
+    QList<xcb_atom_t> xdnd_types;
+
+    xcb_timestamp_t target_time;
+    xcb_timestamp_t source_time;
+    Qt::DropAction last_target_accepted_action;
+
+    // rectangle in which the answer will be the same
+    QRect source_sameanswer;
+    bool waiting_for_status;
+
+    // top-level window we sent position to last.
+    xcb_window_t current_target;
+    // window to send events to (always valid if current_target)
+    xcb_window_t current_proxy_target;
+
+    QXcbScreen *current_screen;
+
+    int heartbeat;
+    bool xdnd_dragging;
+
+    QVector<xcb_atom_t> drag_types;
+
+    struct Transaction
+    {
+        xcb_timestamp_t timestamp;
+        xcb_window_t target;
+        xcb_window_t proxy_target;
+        QWindow *targetWindow;
+//        QWidget *embedding_widget;
+        QDrag *object;
+    };
+    QList<Transaction> transactions;
+
+    int transaction_expiry_timer;
+    void restartDropExpiryTimer();
+    int findTransactionByWindow(xcb_window_t window);
+    int findTransactionByTime(xcb_timestamp_t timestamp);
+};
+
+QT_END_NAMESPACE
+
+#endif