Fix Chrome focus jumping in SourceStructureExplorer
A change in Chrome results in different behavior when focusing an
invisible element. When the list is longer than the panel, this
results in the panel scrolling-to-top. The fix applied is adapted from
[this issue](https://github.com/gwtproject/gwt/issues/9475#issuecomment-277777989)
on the GWT Github repository.
@@ -615,6 +615,11 @@ select {
font-size: 12px;
color: #555;
cursor: default;
+ display: block !important;
+}
+
+.gwt-Tree .gwt-TreeItem-selected {
+ background: none;
}
.gwt-Tree .gwt-TreeItem span {
