Jacek Caban : mshtml: Added IDOMMouseEvent:: fromElement property implementation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: beb0b78a5a332902d6a8ab18f1a98152f3dcd2ac
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=beb0b78a5a332902d6a8ab18f1a98152f3dcd2ac

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Wed Feb 21 15:20:04 2018 +0100

mshtml: Added IDOMMouseEvent::fromElement property implementation.

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

---

 dlls/mshtml/htmlevent.c     | 23 +++++++++++++++++++++--
 dlls/mshtml/tests/events.js |  1 +
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/dlls/mshtml/htmlevent.c b/dlls/mshtml/htmlevent.c
index e9a4731..0011baa 100644
--- a/dlls/mshtml/htmlevent.c
+++ b/dlls/mshtml/htmlevent.c
@@ -1580,8 +1580,27 @@ static HRESULT WINAPI DOMMouseEvent_get_buttons(IDOMMouseEvent *iface, USHORT *p
 static HRESULT WINAPI DOMMouseEvent_get_fromElement(IDOMMouseEvent *iface, IHTMLElement **p)
 {
     DOMEvent *This = impl_from_IDOMMouseEvent(iface);
-    FIXME("(%p)->(%p)\n", This, p);
-    return E_NOTIMPL;
+    IEventTarget  *related_target = NULL;
+
+    TRACE("(%p)->(%p)\n", This, p);
+
+    if(This->event_id != EVENTID_LAST) {
+        HRESULT hres = S_OK;
+        if(event_info[This->event_id].flags & EVENT_MOUSE_FROM_RELATED)
+            hres = IDOMMouseEvent_get_relatedTarget(&This->IDOMMouseEvent_iface, &related_target);
+        else if(event_info[This->event_id].flags & EVENT_MOUSE_TO_RELATED)
+            hres = IDOMEvent_get_target(&This->IDOMEvent_iface, &related_target);
+        if(FAILED(hres))
+            return hres;
+    }
+
+    if(!related_target) {
+        *p = NULL;
+        return S_OK;
+    }
+
+    IEventTarget_QueryInterface(related_target, &IID_IHTMLElement, (void**)p);
+    return S_OK;
 }
 
 static HRESULT WINAPI DOMMouseEvent_get_toElement(IDOMMouseEvent *iface, IHTMLElement **p)
diff --git a/dlls/mshtml/tests/events.js b/dlls/mshtml/tests/events.js
index a15ee51..7db440a 100644
--- a/dlls/mshtml/tests/events.js
+++ b/dlls/mshtml/tests/events.js
@@ -633,6 +633,7 @@ function test_mouse_event() {
     ok(e.which === 1, "which = " + e.which);
     ok(e.relatedTarget === null, "relatedTarget = " + e.relatedTarget);
     ok(e.toElement === null, "toElement = " + e.toElement);
+    ok(e.fromElement === null, "fromElement = " + e.fromElement);
 
     e.initMouseEvent("test", true, true, window, 1, 2, 3, 4, 5, false, false, false, false, 1, document);
     ok(e.type === "test", "type = " + e.type);