Method OpenPopupOnItemClick

extern/imgui/imgui.cpp:10806–10817

Helper to open a popup if mouse button is released over the item - This is essentially the same as BeginPopupContextItem() but without the trailing BeginPopup()

// Helper to open a popup if mouse button is released over the item
// - This is essentially the same as BeginPopupContextItem() but without the trailing BeginPopup()
void ImGui::OpenPopupOnItemClick(const char* str_id, ImGuiPopupFlags popup_flags)
{
    ImGuiContext& g = *GImGui;
    ImGuiWindow* window = g.CurrentWindow;
    int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
    if (IsMouseReleased(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
    {
        ImGuiID id = str_id ? window->GetID(str_id) : g.LastItemData.ID;    // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
        IM_ASSERT(id != 0);                                             // You cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
        OpenPopupEx(id, popup_flags);
    }
}

// This is a helper to handle the simplest case of associating one named popup to one given widget.
// - To create a popup associated to the last item, you generally want to pass a NULL value to str_id.