Nav: Update hovered logic, so IsItemHovered and ButtonBehavior are more consistent with each other. The known case this fixes is nav focusing on a color button, tooltip appears, mouse move: previously tooltip would stay up. (#787)

imgui.cpp

@@ -2367,7 +2367,7 @@ bool ImGui::IsItemHovered(ImGuiHoveredFlags flags)
 {
     ImGuiContext& g = *GImGui;
     ImGuiWindow* window = g.CurrentWindow;
-    if (g.NavDisableMouseHover)
+    if (g.NavDisableMouseHover && !g.NavDisableHighlight)
         return IsItemFocused();
 
     // Test for bounding box overlap, as updated as ItemAdd()
@@ -7331,7 +7331,7 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
 
     // Gamepad/Keyboard navigation
     // We report navigated item as hovered but we don't set g.HoveredId to not interfere with mouse.
-    if (g.NavId == id && !g.NavDisableHighlight && (g.ActiveId == 0 || g.ActiveId == id || g.ActiveId == window->MoveId))
+    if (g.NavId == id && !g.NavDisableHighlight && g.NavDisableMouseHover && (g.ActiveId == 0 || g.ActiveId == id || g.ActiveId == window->MoveId))
         hovered = true;
 
     if (g.NavActivateDownId == id)