SDL: focused viewport pushed into the background by tooltips in its own viewport

[lailoken]

Version/Branch of Dear ImGui:

Version 1.91 docking

Back-ends:

imgui_impl_sdl2.cpp + imgui_impl_opengl3.cpp

Compiler, OS:

Linux + GCC

Full config/build information:

Dear ImGui 1.91.1 WIP (19101)
--------------------------------
sizeof(size_t): 8, sizeof(ImDrawIdx): 4, sizeof(ImDrawVert): 20
define: __cplusplus=201103
define: IMGUI_DISABLE_OBSOLETE_FUNCTIONS
define: IMGUI_DISABLE_OBSOLETE_KEYIO
define: __linux__
define: __GNUC__=13
define: IMGUI_HAS_VIEWPORT
define: IMGUI_HAS_DOCK
--------------------------------
io.BackendPlatformName: imgui_impl_sdl2
io.BackendRendererName: imgui_impl_opengl3
io.ConfigFlags: 0x00000481
 NavEnableKeyboard
 DockingEnable
 ViewportsEnable
io.ConfigViewportsNoDecoration
io.ConfigDockingWithShift
io.ConfigInputTextCursorBlink
io.ConfigWindowsResizeFromEdges
io.ConfigMemoryCompactTimer = 60.0
io.BackendFlags: 0x00001C0E
 HasMouseCursors
 HasSetMousePos
 PlatformHasViewports
 HasMouseHoveredViewport
 RendererHasVtxOffset
 RendererHasViewports
--------------------------------
io.Fonts: 12 fonts, Flags: 0x00000000, TexSize: 2048,2048
io.DisplaySize: 1.00,1.00
io.DisplayFramebufferScale: 1.00,1.00
--------------------------------
style.WindowPadding: 8.00,8.00
style.WindowBorderSize: 1.00
style.FramePadding: 4.00,3.00
style.FrameRounding: 0.00
style.FrameBorderSize: 1.00
style.ItemSpacing: 8.00,4.00
style.ItemInnerSpacing: 4.00,4.00

Details:

My Problem is identical to #7354 except that I am on SDL backend.

Tooltips (when created as a viewport) steal input focus.

However, if I modify the create function in imgui_impl_sdl2.cpp with the following two lines preceding the create it works for me: (see example code below)

Incidentally I find that using SDL_WINDOW_POPUP_MENU there instead of SDL_WINDOW_TOOLTIP also makes it work, and is possibly something to be used for menus, but using SDL_WINDOW_TOOLTIP does not seem to break menu popups.

I'm not sure if this is the correct way to solve this, but I hope this can help.

For now I'll be using this in my project unless there is a better way.

Screenshots/Video:

No response

Minimal, Complete and Verifiable Example code:

    if (viewport->ParentViewportId != 0 && (viewport->Flags & ImGuiViewportFlags_TopMost))
        sdl_flags |= SDL_WINDOW_TOOLTIP;

    vd->Window = SDL_CreateWindow("No Title Yet", (int)viewport->Pos.x, (int)viewport->Pos.y, (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);