Demo: tweaked ShowFontSelector() and ShowStyleSelector() to update selection while navigating and to not close popup automatically.

docs/CHANGELOG.txt

@@ -80,6 +80,8 @@ Other Changes:
   is now skipped. (#8904, #4631)
 - Debug Tools: ID Stack Tool: added option to hex-encode non-ASCII characters in
   output path. (#8904, #4631)
+- Demo: tweaked ShowFontSelector() and ShowStyleSelector() to update selection
+  while navigating and to not close popup automatically.
 - Examples: Android: Android+OpenGL3: update Gradle project (#8888, #8878) [@scribam]
 - Backends: SDL_GPU: Added ImGui_ImplSDLGPU3_InitInfo::SwapchainComposition and
   PresentMode to configure how secondary viewports are created. Currently only used

imgui.cpp

@@ -17873,7 +17873,7 @@ void ImGui::ShowFontSelector(const char* label)
         for (ImFont* font : io.Fonts->Fonts)
         {
             PushID((void*)font);
-            if (Selectable(font->GetDebugName(), font == font_current))
+            if (Selectable(font->GetDebugName(), font == font_current, ImGuiSelectableFlags_SelectOnNav | ImGuiSelectableFlags_NoAutoClosePopups))
                 io.FontDefault = font;
             if (font == font_current)
                 SetItemDefaultFocus();

imgui_demo.cpp

@@ -8229,17 +8229,25 @@ void ImGui::ShowAboutWindow(bool* p_open)
 bool ImGui::ShowStyleSelector(const char* label)
 {
     static int style_idx = -1;
-    if (ImGui::Combo(label, &style_idx, "Dark\0Light\0Classic\0"))
+    const char* style_names[] = { "Dark", "Light", "Classic" };
+    bool ret = false;
+    if (ImGui::BeginCombo(label, (style_idx >= 0 && style_idx < IM_ARRAYSIZE(style_names)) ? style_names[style_idx] : ""))
     {
-        switch (style_idx)
-        {
-        case 0: ImGui::StyleColorsDark(); break;
-        case 1: ImGui::StyleColorsLight(); break;
-        case 2: ImGui::StyleColorsClassic(); break;
-        }
-        return true;
+        for (int n = 0; n < IM_ARRAYSIZE(style_names); n++)
+            if (ImGui::Selectable(style_names[n], style_idx == n, ImGuiSelectableFlags_SelectOnNav | ImGuiSelectableFlags_NoAutoClosePopups))
+            {
+                style_idx = n;
+                ret = true;
+                switch (style_idx)
+                {
+                case 0: ImGui::StyleColorsDark(); break;
+                case 1: ImGui::StyleColorsLight(); break;
+                case 2: ImGui::StyleColorsClassic(); break;
+                }
+            }
+        ImGui::EndCombo();
     }
-    return false;
+    return ret;
 }
 
 static const char* GetTreeLinesFlagsName(ImGuiTreeNodeFlags flags)