Only send a synthetic mouse out event if synthetic mouse move events …

…were sent.

https://bugs.webkit.org/show_bug.cgi?id=197295
rdar://problem/49040233

Reviewed by Zalan Bujtas.

* WebProcess/WebPage/ios/WebPageIOS.mm:
(WebKit::WebPage::completeSyntheticClick):


Canonical link: https://commits.webkit.org/211507@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@244667 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebKit/ChangeLog

@@ -1,3 +1,14 @@
+2019-04-25  Timothy Hatcher  <timothy@apple.com>
+
+        Only send a synthetic mouse out event if synthetic mouse move events were sent.
+        https://bugs.webkit.org/show_bug.cgi?id=197295
+        rdar://problem/49040233
+
+        Reviewed by Zalan Bujtas.
+
+        * WebProcess/WebPage/ios/WebPageIOS.mm:
+        (WebKit::WebPage::completeSyntheticClick):
+
 2019-04-25  Timothy Hatcher  <timothy@apple.com>
 
         Disable date and time inputs on iOSMac.

Source/WebKit/WebProcess/WebPage/ios/WebPageIOS.mm

@@ -689,8 +689,10 @@ static bool nodeAlwaysTriggersClick(const Node& targetNode)
     if (newFocusedElement && newFocusedElement == oldFocusedElement)
         elementDidRefocus(*newFocusedElement);
 
-    if (!tapWasHandled && nodeRespondingToClick.document().frame())
+    // Only send a synthetic mouse out event if synthetic mouse move events were sent; this is true when ContentChangeObserver is enabled.
+    if (nodeRespondingToClick.document().settings().contentChangeObserverEnabled() && !tapWasHandled && nodeRespondingToClick.document().frame())
         nodeRespondingToClick.document().frame()->eventHandler().dispatchSyntheticMouseOut(PlatformMouseEvent(roundedAdjustedPoint, roundedAdjustedPoint, LeftButton, PlatformEvent::NoType, 0, shiftKey, ctrlKey, altKey, metaKey, WallTime::now(), 0, WebCore::NoTap));
+
     if (m_isClosed)
         return;