2011-03-15 Martin Robinson <mrobinson@igalia.com>

        Reviewed by Adam Barth.

        [GTK] [WebKit2] The UIProcess never changes the mouse cursor
        https://bugs.webkit.org/show_bug.cgi?id=56333

        Add an implementation for WebView::addCursor for WebKit2 GTK+. This allows
        the cursor to change as the user mouses around the page. There is currently
        no test infrastructure to track cursor changes.

        * UIProcess/gtk/WebView.cpp:
        (WebKit::WebView::setCursor): Ported implementation from WebKit1.

git-svn-id: svn://svn.chromium.org/blink/trunk@81137 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/WebKit2/ChangeLog

+2011-03-15  Martin Robinson  <mrobinson@igalia.com>
+
+        Reviewed by Adam Barth.
+
+        [GTK] [WebKit2] The UIProcess never changes the mouse cursor
+        https://bugs.webkit.org/show_bug.cgi?id=56333
+
+        Add an implementation for WebView::addCursor for WebKit2 GTK+. This allows
+        the cursor to change as the user mouses around the page. There is currently
+        no test infrastructure to track cursor changes.
+
+        * UIProcess/gtk/WebView.cpp:
+        (WebKit::WebView::setCursor): Ported implementation from WebKit1.
+
 2011-03-15  Kevin Ollivier  <kevino@theolliviers.com>
 
         Reviewed by Darin Adler.

third_party/WebKit/Source/WebKit2/UIProcess/gtk/WebView.cpp

@@ -194,9 +194,17 @@ void WebView::toolTipChanged(const String&, const String&)
     notImplemented();
 }
 
-void WebView::setCursor(const Cursor&)
-{
-    notImplemented();
+void WebView::setCursor(const Cursor& cursor)
+{
+    // [GTK] Widget::setCursor() gets called frequently
+    // http://bugs.webkit.org/show_bug.cgi?id=16388
+    // Setting the cursor may be an expensive operation in some backends,
+    // so don't re-set the cursor if it's already set to the target value.
+    GdkWindow* window = gtk_widget_get_window(m_viewWidget);
+    GdkCursor* currentCursor = gdk_window_get_cursor(window);
+    GdkCursor* newCursor = cursor.platformCursor().get();
+    if (currentCursor != newCursor)
+        gdk_window_set_cursor(window, newCursor);
 }
 
 void WebView::setViewportArguments(const WebCore::ViewportArguments&)