ButtonBehavior: pull ImGuiButtonFlags_Repeat from ImGuiItemFlags_ButtonRepeat, matching ItemHoverable() logic. So more widgets can take advantage of Repeat logic.

imgui_widgets.cpp

@@ -492,6 +492,11 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
     if ((flags & ImGuiButtonFlags_PressedOnMask_) == 0)
         flags |= ImGuiButtonFlags_PressedOnDefault_;
 
+    // Default behavior inherited from item flags
+    const ImGuiItemFlags item_flags = (g.LastItemData.ID == id ? g.LastItemData.InFlags : g.CurrentItemFlags);
+    if (item_flags & ImGuiItemFlags_ButtonRepeat)
+        flags |= ImGuiButtonFlags_Repeat;
+
     ImGuiWindow* backup_hovered_window = g.HoveredWindow;
     const bool flatten_hovered_children = (flags & ImGuiButtonFlags_FlattenChildren) && g.HoveredWindow && g.HoveredWindow->RootWindow == window;
     if (flatten_hovered_children)
@@ -698,9 +703,6 @@ bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags
     if (!ItemAdd(bb, id))
         return false;
 
-    if (g.LastItemData.InFlags & ImGuiItemFlags_ButtonRepeat)
-        flags |= ImGuiButtonFlags_Repeat;
-
     bool hovered, held;
     bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
 
@@ -777,9 +779,6 @@ bool ImGui::ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size, ImGuiBu
     if (!ItemAdd(bb, id))
         return false;
 
-    if (g.LastItemData.InFlags & ImGuiItemFlags_ButtonRepeat)
-        flags |= ImGuiButtonFlags_Repeat;
-
     bool hovered, held;
     bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);