Jacek Caban : mshtml: Ignore preventDefault calls for non-cancelable events.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8600c2a57394b4d71e465e192b3621154b07c5ce
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8600c2a57394b4d71e465e192b3621154b07c5ce

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Fri Dec  1 17:02:40 2017 +0100

mshtml: Ignore preventDefault calls for non-cancelable events.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/mshtml/htmlevent.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/mshtml/htmlevent.c b/dlls/mshtml/htmlevent.c
index a4fa956..01d9753 100644
--- a/dlls/mshtml/htmlevent.c
+++ b/dlls/mshtml/htmlevent.c
@@ -1063,8 +1063,10 @@ static HRESULT WINAPI DOMEvent_preventDefault(IDOMEvent *iface)
 
     TRACE("(%p)\n", This);
 
-    This->prevent_default = TRUE;
-    nsIDOMEvent_PreventDefault(This->nsevent);
+    if(This->current_target && This->cancelable) {
+        This->prevent_default = TRUE;
+        nsIDOMEvent_PreventDefault(This->nsevent);
+    }
     return S_OK;
 }