Nav: Fixed Selectable() crash introduced earlier today in 43ee5d73 + added comments/assert (#323)

This commit is contained in:
ocornut 2016-08-21 17:52:42 +02:00
parent df9bdf38f9
commit 3883a2027f

View File

@ -2347,6 +2347,7 @@ int ImGui::GetFrameCount()
static void SetNavId(ImGuiID id) static void SetNavId(ImGuiID id)
{ {
ImGuiContext& g = *GImGui; ImGuiContext& g = *GImGui;
IM_ASSERT(g.NavWindow);
g.NavId = id; g.NavId = id;
if (g.NavLayer == 0) if (g.NavLayer == 0)
g.NavWindow->NavLastId = g.NavId; g.NavWindow->NavLastId = g.NavId;
@ -9503,7 +9504,7 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
selected = false; selected = false;
// Hovering selectable with mouse updates NavId accordingly so navigation can be resumed with gamepad/keyboard (this doesn't happen on most widgets) // Hovering selectable with mouse updates NavId accordingly so navigation can be resumed with gamepad/keyboard (this doesn't happen on most widgets)
if (hovered && !g.NavDisableMouseHover && (g.IO.MouseDelta.x != 0.0f || g.IO.MouseDelta.y != 0.0f)) if (hovered && !g.NavDisableMouseHover && g.NavWindow == window && (g.IO.MouseDelta.x != 0.0f || g.IO.MouseDelta.y != 0.0f))
{ {
g.NavDisableHighlight = true; g.NavDisableHighlight = true;
SetNavId(id); SetNavId(id);
@ -9756,7 +9757,7 @@ bool ImGui::BeginMenu(const char* label, bool enabled)
bool menuset_is_open = !(window->Flags & ImGuiWindowFlags_Popup) && (g.OpenPopupStack.Size > g.CurrentPopupStack.Size && g.OpenPopupStack[g.CurrentPopupStack.Size].ParentMenuSet == window->GetID("##menus")); bool menuset_is_open = !(window->Flags & ImGuiWindowFlags_Popup) && (g.OpenPopupStack.Size > g.CurrentPopupStack.Size && g.OpenPopupStack[g.CurrentPopupStack.Size].ParentMenuSet == window->GetID("##menus"));
ImGuiWindow* backed_nav_window = g.NavWindow; ImGuiWindow* backed_nav_window = g.NavWindow;
if (menuset_is_open) if (menuset_is_open)
g.NavWindow = window; g.NavWindow = window; // Odd hack to allow hovering across menus of a same menu-set (otherwise we wouldn't be able to hover parent)
ImVec2 popup_pos, pos = window->DC.CursorPos; ImVec2 popup_pos, pos = window->DC.CursorPos;
if (window->DC.LayoutType == ImGuiLayoutType_Horizontal) if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)