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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 "DragController.h"
     28 
     29 #include "DragData.h"
     30 #include "windows.h"
     31 #include "SelectionController.h"
     32 #include <wtf/RefPtr.h>
     33 
     34 namespace WebCore {
     35 
     36 const int DragController::LinkDragBorderInset = 2;
     37 const int DragController::MaxOriginalImageArea = 1500 * 1500;
     38 const int DragController::DragIconRightInset = 7;
     39 const int DragController::DragIconBottomInset = 3;
     40 
     41 const float DragController::DragImageAlpha = 0.75f;
     42 
     43 DragOperation DragController::dragOperation(DragData* dragData)
     44 {
     45     //FIXME: to match the macos behaviour we should return DragOperationNone
     46     //if we are a modal window, we are the drag source, or the window is an attached sheet
     47     //If this can be determined from within WebCore operationForDrag can be pulled into
     48     //WebCore itself
     49     ASSERT(dragData);
     50     return dragData->containsURL(0) && !m_didInitiateDrag ? DragOperationCopy : DragOperationNone;
     51 }
     52 
     53 bool DragController::isCopyKeyDown(DragData*)
     54 {
     55     return ::GetAsyncKeyState(VK_CONTROL);
     56 }
     57 
     58 const IntSize& DragController::maxDragImageSize()
     59 {
     60     static const IntSize maxDragImageSize(200, 200);
     61 
     62     return maxDragImageSize;
     63 }
     64 
     65 void DragController::cleanupAfterSystemDrag()
     66 {
     67 }
     68 
     69 }
     70