Implement the grab/grabbing cursors (for Mac/GTK)....

webkit/glue/webcursor_mac.mm

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/glue/webcursor.h"
 
 #import <AppKit/AppKit.h>
 #include <Carbon/Carbon.h>
 
 #include "app/mac/nsimage_cache.h"
 #include "base/logging.h"
@@ skipping 134 matching lines @@
     case WebCursorInfo::TypeCopy:
       return LoadCursor("copyCursor", 3, 2);
     case WebCursorInfo::TypeNone:
       return LoadCursor("noneCursor", 7, 7);
     case WebCursorInfo::TypeNotAllowed:
       return LoadCursor("notAllowedCursor", 11, 11);
     case WebCursorInfo::TypeZoomIn:
       return LoadCursor("zoomInCursor", 7, 7);
     case WebCursorInfo::TypeZoomOut:
       return LoadCursor("zoomOutCursor", 7, 7);
+    case WebCursorInfo::TypeGrab:
+      return [NSCursor openHandCursor];
+    case WebCursorInfo::TypeGrabbing:
+      return [NSCursor closedHandCursor];
     case WebCursorInfo::TypeCustom:
       return CreateCustomCursor(custom_data_, custom_size_, hotspot_);
   }
   NOTREACHED();
   return nil;
 }
 
 gfx::NativeCursor WebCursor::GetNativeCursor() {
   return GetCursor();
 }
@@ skipping 19 matching lines @@
       break;
     case kThemeCrossCursor:
     case kThemePlusCursor:
       cursor_info.type = WebCursorInfo::TypeCross;
       break;
     case kThemeWatchCursor:
     case kThemeSpinningCursor:
       cursor_info.type = WebCursorInfo::TypeWait;
       break;
     case kThemeClosedHandCursor:
+      cursor_info.type = WebCursorInfo::TypeGrabbing;
+      break;
     case kThemeOpenHandCursor:
+      cursor_info.type = WebCursorInfo::TypeGrab;
+      break;
     case kThemePointingHandCursor:
     case kThemeCountingUpHandCursor:
     case kThemeCountingDownHandCursor:
     case kThemeCountingUpAndDownHandCursor:
       cursor_info.type = WebCursorInfo::TypeHand;
       break;
     case kThemeResizeLeftCursor:
       cursor_info.type = WebCursorInfo::TypeWestResize;
       break;
     case kThemeResizeRightCursor:
@@ skipping 84 matching lines @@
   } else if ([cursor isEqual:[NSCursor resizeRightCursor]]) {
     cursor_info.type = WebCursorInfo::TypeEastResize;
   } else if ([cursor isEqual:[NSCursor resizeLeftRightCursor]]) {
     cursor_info.type = WebCursorInfo::TypeEastWestResize;
   } else if ([cursor isEqual:[NSCursor resizeUpCursor]]) {
     cursor_info.type = WebCursorInfo::TypeNorthResize;
   } else if ([cursor isEqual:[NSCursor resizeDownCursor]]) {
     cursor_info.type = WebCursorInfo::TypeSouthResize;
   } else if ([cursor isEqual:[NSCursor resizeUpDownCursor]]) {
     cursor_info.type = WebCursorInfo::TypeNorthSouthResize;
+  } else if ([cursor isEqual:[NSCursor openHandCursor]]) {
+    cursor_info.type = WebCursorInfo::TypeGrab;
+  } else if ([cursor isEqual:[NSCursor closedHandCursor]]) {
+    cursor_info.type = WebCursorInfo::TypeGrabbing;
   } else {
-    // Also handles the [NSCursor closedHandCursor], [NSCursor openHandCursor],
-    // and [NSCursor disappearingItemCursor] cases. Quick-and-dirty image
-    // conversion; TODO(avi): do better.
+    // Also handles the [NSCursor disappearingItemCursor] case. Quick-and-dirty
+    // image conversion; TODO(avi): do better.
     CGImageRef cg_image = nil;
     NSImage* image = [cursor image];
     for (id rep in [image representations]) {
       if ([rep isKindOfClass:[NSBitmapImageRep class]]) {
         cg_image = [rep CGImage];
         break;
       }
     }
 
     if (cg_image) {
@@ skipping 66 matching lines @@
   return true;
 }
 
 void WebCursor::CleanupPlatformData() {
   return;
 }
 
 void WebCursor::CopyPlatformData(const WebCursor& other) {
   return;
 }