webengine/osswebengine/WebCore/page/DragClient.h
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/page/DragClient.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2007 Apple Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+
+#ifndef DragClient_h
+#define DragClient_h
+
+#include "DragActions.h"
+#include "DragImage.h"
+#include "IntPoint.h"
+
+#if PLATFORM(MAC)
+#ifdef __OBJC__
+@class DOMElement;
+@class NSURL;
+@class NSString;
+@class NSPasteboard;
+#else
+class DOMElement;
+class NSURL;
+class NSString;
+class NSPasteboard;
+#endif
+#endif
+
+namespace WebCore {
+    
+    class Clipboard;
+    class DragData;
+    class Frame;
+    class Image;
+    class HTMLImageElement;
+    
+    class DragClient {
+    public:
+        virtual void willPerformDragDestinationAction(DragDestinationAction, DragData*) = 0;
+        virtual void willPerformDragSourceAction(DragSourceAction, const IntPoint&, Clipboard*) = 0;
+        virtual DragDestinationAction actionMaskForDrag(DragData*) = 0;
+        //We work in window rather than view coordinates here
+        virtual DragSourceAction dragSourceActionMaskForPoint(const IntPoint& windowPoint) = 0;
+        
+        virtual void startDrag(DragImageRef dragImage, const IntPoint& dragImageOrigin, const IntPoint& eventPos, Clipboard*, Frame*, bool linkDrag = false) = 0;
+        virtual DragImageRef createDragImageForLink(KURL&, const String& label, Frame*) = 0;
+        
+        virtual void dragControllerDestroyed() = 0;
+#if PLATFORM(MAC)
+        //Mac specific helper functions to allow access to functionality in webkit -- such as 
+        //web archives and NSPasteboard extras 
+        //not abstract as that would require another #if PLATFORM(MAC) for the SVGImage client empty impl
+        virtual void declareAndWriteDragImage(NSPasteboard*, DOMElement*, NSURL*, NSString*, Frame*) {};
+#endif
+        
+        virtual ~DragClient() {};
+    };
+    
+}
+
+#endif // !DragClient_h
+