Make updateKeyboardFocus a bit more efficient

1 files changed, 13 insertions, 3 deletions

diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 8ea8fbf905..e24fb35acb 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -3888,7 +3888,9 @@ void LLViewerWindow::updateKeyboardFocus()
     LLUICtrl* cur_focus = dynamic_cast<LLUICtrl*>(gFocusMgr.getKeyboardFocus());
     if (cur_focus)
     {
-        if (!cur_focus->isInVisibleChain() || !cur_focus->isInEnabledChain())
+        bool is_in_visible_chain = cur_focus->isInVisibleChain();
+        bool is_in_enabled_chain = cur_focus->isInEnabledChain();
+        if (!is_in_visible_chain || !is_in_enabled_chain)
         {
             // don't release focus, just reassign so that if being given
             // to a sibling won't call onFocusLost on all the ancestors
@@ -3899,11 +3901,19 @@ void LLViewerWindow::updateKeyboardFocus()
             bool new_focus_found = false;
             while(parent)
             {
+                if (!is_in_visible_chain)
+                {
+                    is_in_visible_chain = parent->isInVisibleChain();
+                }
+                if (!is_in_enabled_chain)
+                {
+                    is_in_enabled_chain = parent->isInEnabledChain();
+                }
                 if (parent->isCtrl()
                     && (parent->hasTabStop() || parent == focus_root)
                     && !parent->getIsChrome()
-                    && parent->isInVisibleChain()
-                    && parent->isInEnabledChain())
+                    && is_in_visible_chain
+                    && is_in_enabled_chain)
                 {
                     if (!parent->focusFirstItem())
                     {