From 3eb84a8c29a624d984506b88f7d7a7968a18ce32 Mon Sep 17 00:00:00 2001
From: Jonathan Watt <jwatt@jwatt.org>
Date: Wed, 1 Feb 2012 19:15:49 +0000
Subject: [PATCH] Bug 119061 - Make SVG elements respond to :hover when
 script/animation moves them under the mouse pointer. r=roc.

---
 layout/svg/base/src/nsSVGOuterSVGFrame.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/layout/svg/base/src/nsSVGOuterSVGFrame.cpp b/layout/svg/base/src/nsSVGOuterSVGFrame.cpp
index cffcff39d8b..0d88e56e1d5 100644
--- a/layout/svg/base/src/nsSVGOuterSVGFrame.cpp
+++ b/layout/svg/base/src/nsSVGOuterSVGFrame.cpp
@@ -687,6 +687,10 @@ nsSVGOuterSVGFrame::GetType() const
 void
 nsSVGOuterSVGFrame::InvalidateCoveredRegion(nsIFrame *aFrame)
 {
+  // Make sure elements styled by :hover get updated if script/animation moves
+  // them under or out from under the pointer:
+  PresContext()->PresShell()->SynthesizeMouseMove(false);
+
   nsISVGChildFrame *svgFrame = do_QueryFrame(aFrame);
   if (!svgFrame)
     return;
@@ -698,6 +702,10 @@ nsSVGOuterSVGFrame::InvalidateCoveredRegion(nsIFrame *aFrame)
 bool
 nsSVGOuterSVGFrame::UpdateAndInvalidateCoveredRegion(nsIFrame *aFrame)
 {
+  // Make sure elements styled by :hover get updated if script/animation moves
+  // them under or out from under the pointer:
+  PresContext()->PresShell()->SynthesizeMouseMove(false);
+
   nsISVGChildFrame *svgFrame = do_QueryFrame(aFrame);
   if (!svgFrame)
     return false;