Internals: ButtonBehavior: made ImGuiButtonFlags_PressedOnClick and ImGuiButtonFlags_PressedOnDoubleClick set the click offset correctly + hold on g.ActiveId so Held state can be reported. Added ImGuiButtonFlags_NoHoldingActiveId flag to disable the later.

imgui.cpp

@@ -5777,8 +5777,12 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
             if (((flags & ImGuiButtonFlags_PressedOnClick) && g.IO.MouseClicked[0]) || ((flags & ImGuiButtonFlags_PressedOnDoubleClick) && g.IO.MouseDoubleClicked[0]))
             {
                 pressed = true;
-                ClearActiveID();
+                if (flags & ImGuiButtonFlags_NoHoldingActiveID)
+                    ClearActiveID();
+                else
+                    SetActiveID(id, window); // Hold on ID
                 FocusWindow(window);
+                g.ActiveIdClickOffset = g.IO.MousePos - bb.Min;
             }
             if ((flags & ImGuiButtonFlags_PressedOnRelease) && g.IO.MouseReleased[0])
             {
@@ -8851,7 +8855,7 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
     }
 
     ImGuiButtonFlags button_flags = 0;
-    if (flags & ImGuiSelectableFlags_Menu) button_flags |= ImGuiButtonFlags_PressedOnClick;
+    if (flags & ImGuiSelectableFlags_Menu) button_flags |= ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_NoHoldingActiveID;
     if (flags & ImGuiSelectableFlags_MenuItem) button_flags |= ImGuiButtonFlags_PressedOnRelease;
     if (flags & ImGuiSelectableFlags_Disabled) button_flags |= ImGuiButtonFlags_Disabled;
     if (flags & ImGuiSelectableFlags_AllowDoubleClick) button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick;

imgui_internal.h

@@ -178,9 +178,10 @@ enum ImGuiButtonFlags_
     ImGuiButtonFlags_FlattenChilds          = 1 << 5,   // allow interactions even if a child window is overlapping
     ImGuiButtonFlags_DontClosePopups        = 1 << 6,   // disable automatically closing parent popup on press // [UNUSED]
     ImGuiButtonFlags_Disabled               = 1 << 7,   // disable interactions
-    ImGuiButtonFlags_AlignTextBaseLine      = 1 << 8,   // vertically align button to match text baseline - ButtonEx() only
+    ImGuiButtonFlags_AlignTextBaseLine      = 1 << 8,   // vertically align button to match text baseline (ButtonEx() only)
     ImGuiButtonFlags_NoKeyModifiers         = 1 << 9,   // disable interaction if a key modifier is held
-    ImGuiButtonFlags_AllowOverlapMode       = 1 << 10   // require previous frame HoveredId to either match id or be null before being usable
+    ImGuiButtonFlags_AllowOverlapMode       = 1 << 10,  // require previous frame HoveredId to either match id or be null before being usable
+    ImGuiButtonFlags_NoHoldingActiveID      = 1 << 11   // don't set ActiveId while holding the mouse (ImGuiButtonFlags_PressedOnClick only)
 };
 
 enum ImGuiSliderFlags_