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      1 /*
      2  * Copyright (C) 2007 Apple Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "DragClientQt.h"
     28 
     29 #include "ClipboardQt.h"
     30 #include "Frame.h"
     31 #include "PlatformMouseEvent.h"
     32 #include "qwebpage.h"
     33 
     34 #include <QDrag>
     35 #include <QMimeData>
     36 
     37 
     38 namespace WebCore {
     39 
     40 static inline Qt::DropActions dragOperationsToDropActions(unsigned op)
     41 {
     42     Qt::DropActions result = Qt::IgnoreAction;
     43     if (op & DragOperationCopy)
     44         result = Qt::CopyAction;
     45     if (op & DragOperationMove)
     46         result |= Qt::MoveAction;
     47     if (op & DragOperationGeneric)
     48         result |= Qt::MoveAction;
     49     if (op & DragOperationLink)
     50         result |= Qt::LinkAction;
     51     return result;
     52 }
     53 
     54 static inline DragOperation dropActionToDragOperation(Qt::DropActions action)
     55 {
     56     DragOperation result = DragOperationNone;
     57     if (action & Qt::CopyAction)
     58         result = DragOperationCopy;
     59     if (action & Qt::LinkAction)
     60         result = DragOperationLink;
     61     if (action & Qt::MoveAction)
     62         result = DragOperationMove;
     63     return result;
     64 }
     65 
     66 DragDestinationAction DragClientQt::actionMaskForDrag(DragData*)
     67 {
     68     return DragDestinationActionAny;
     69 }
     70 
     71 void DragClientQt::willPerformDragDestinationAction(DragDestinationAction, DragData*)
     72 {
     73 }
     74 
     75 void DragClientQt::dragControllerDestroyed()
     76 {
     77     delete this;
     78 }
     79 
     80 DragSourceAction DragClientQt::dragSourceActionMaskForPoint(const IntPoint&)
     81 {
     82     return DragSourceActionAny;
     83 }
     84 
     85 void DragClientQt::willPerformDragSourceAction(DragSourceAction, const IntPoint&, Clipboard*)
     86 {
     87 }
     88 
     89 void DragClientQt::startDrag(DragImageRef dragImage, const IntPoint&, const IntPoint&, Clipboard* clipboard, Frame* frame, bool)
     90 {
     91 #ifndef QT_NO_DRAGANDDROP
     92     QMimeData* clipboardData = static_cast<ClipboardQt*>(clipboard)->clipboardData();
     93     static_cast<ClipboardQt*>(clipboard)->invalidateWritableData();
     94     QWidget* view = m_webPage->view();
     95     if (view) {
     96         QDrag* drag = new QDrag(view);
     97         if (dragImage)
     98             drag->setPixmap(*dragImage);
     99         else if (clipboardData && clipboardData->hasImage())
    100             drag->setPixmap(qvariant_cast<QPixmap>(clipboardData->imageData()));
    101         DragOperation dragOperationMask = clipboard->sourceOperation();
    102         drag->setMimeData(clipboardData);
    103         Qt::DropAction actualDropAction = drag->exec(dragOperationsToDropActions(dragOperationMask));
    104 
    105         // Send dragEnd event
    106         PlatformMouseEvent me(m_webPage->view()->mapFromGlobal(QCursor::pos()), QCursor::pos(), LeftButton, MouseEventMoved, 0, false, false, false, false, 0);
    107         frame->eventHandler()->dragSourceEndedAt(me, dropActionToDragOperation(actualDropAction));
    108     }
    109 #endif
    110 }
    111 
    112 
    113 } // namespace WebCore
    114