[Version 11.0.0] Counter-intuitive column resizing and scrollbar behavior in the Custom Dialog with a Details view

[rakunavi]

Hello all,

I have noticed a critical UI issue regarding the new Custom Dialog feature introduced in Version 11.0.0.

When displaying the dialog in View mode set to "Details", resizing the rightmost column (the "Attribute" column by default) by dragging its right edge results in a completely reversed and broken behavior compared to the OS standard.

Note: The column width does not update in real-time during the drag; the changes are rendered only after releasing the mouse button.

Steps to Reproduce:

1. Open the Custom Dialog and set the View mode to "Details".
2. Hover the mouse cursor over the right edge of the rightmost column tab (Attribute column).
   Please note that when dragging, it is easy to mistake the right edge of the rightmost column tab for the edge of the right-hand pane in the dialog (with the preview in the top right and properties in the bottom right), so be sure to drag the right edge of the rightmost column tab.
3. Drag to the Left and Release: The column width counter-intuitively expands instead of shrinking. At the same time, the horizontal scrollbar handle becomes small, indicating the internal column width is expanding.
4. Drag to the Right and Release: The column width counter-intuitively shrinks instead of expanding. At the same time, the horizontal scrollbar handle becomes big, indicating the internal column width is shrinking.

Expected Behavior:

• Dragging left should shrink the column width.
• Dragging right should expand the column width.

It seems like the mouse coordinate calculation formula for the rightmost column has its positive/negative signs reversed.

I have attached a short video demonstrating this issue (showing the rendering results after releasing the mouse).

• Animation.gif

Hoping that the above information will be of some help to you.
Thank you for your hard work on this great software.

Best regards,
rakunavi

- PDF-XChange Editor PRO Version: 11.0.0
- OS Version: Windows 11 Pro / Home 25H2 Build 26200.8457
- PC Model: GMKtec Nucbox M7 Pro with HUION Kamvas Pro 19 / Lenovo IdeaPad C340-15IWL

[Daniel - PDF-XChange]

Hello, rakunavi

Thank you for the report, I see the same here and have passed it along for review and resolution. I cannot promise how quick of a fix this will be, but from the sounds of it, in 11.0.1, we will be reverting to use the standard system browser by default, while enabling the new style item will be an optional function (with the toggle being located in the preferences).
This should avoid widespread issues while we continue to refine this new dialogue to better serve users needs. Your feedback in this area is very much appreciated.

Kind regards,