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9 ** GNU Lesser General Public License Usage
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21 ** GNU General Public License Usage
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45 #include <qpa/qplatformdrag.h>
46 #include <QtPlatformSupport/private/qsimpledrag_p.h>
47 #include <qxcbobject.h>
52 #include <qsharedpointer.h>
56 #include <qbackingstore.h>
58 #include <QtCore/QDebug>
69 class QShapedPixmapWindow;
71 class QXcbDrag : public QXcbObject, public QBasicDrag
74 QXcbDrag(QXcbConnection *c);
77 virtual QMimeData *platformDropData();
82 void move(const QMouseEvent *me);
83 void drop(const QMouseEvent *me);
86 void handleEnter(QWindow *window, const xcb_client_message_event_t *event);
87 void handlePosition(QWindow *w, const xcb_client_message_event_t *event);
88 void handleLeave(QWindow *w, const xcb_client_message_event_t *event);
89 void handleDrop(QWindow *, const xcb_client_message_event_t *event);
91 void handleStatus(const xcb_client_message_event_t *event);
92 void handleSelectionRequest(const xcb_selection_request_event_t *event);
93 void handleFinished(const xcb_client_message_event_t *event);
95 bool dndEnable(QXcbWindow *win, bool on);
100 void timerEvent(QTimerEvent* e);
103 friend class QXcbDropData;
107 void handle_xdnd_position(QWindow *w, const xcb_client_message_event_t *event);
108 void handle_xdnd_status(const xcb_client_message_event_t *event);
111 Qt::DropAction toDropAction(xcb_atom_t atom) const;
112 xcb_atom_t toXdndAction(Qt::DropAction a) const;
114 QWeakPointer<QWindow> currentWindow;
115 QPoint currentPosition;
117 QXcbDropData *dropData;
118 Qt::DropAction accepted_drop_action;
120 QWindow *desktop_proxy;
122 xcb_atom_t xdnd_dragsource;
124 // the types in this drop. 100 is no good, but at least it's big.
125 enum { xdnd_max_type = 100 };
126 QList<xcb_atom_t> xdnd_types;
128 xcb_timestamp_t target_time;
129 xcb_timestamp_t source_time;
131 // rectangle in which the answer will be the same
132 QRect source_sameanswer;
133 bool waiting_for_status;
135 // top-level window we sent position to last.
136 xcb_window_t current_target;
137 // window to send events to (always valid if current_target)
138 xcb_window_t current_proxy_target;
140 QXcbScreen *current_screen;
144 QVector<xcb_atom_t> drag_types;
148 xcb_timestamp_t timestamp;
150 xcb_window_t proxy_target;
151 QWindow *targetWindow;
152 // QWidget *embedding_widget;
155 QList<Transaction> transactions;
157 int transaction_expiry_timer;
158 void restartDropExpiryTimer();
159 int findTransactionByWindow(xcb_window_t window);
160 int findTransactionByTime(xcb_timestamp_t timestamp);
161 xcb_window_t findRealWindow(const QPoint & pos, xcb_window_t w, int md, bool ignoreNonXdndAwareWindows);