Stage view loses code-toggle eye icon after collapsing window

[Kwang37]

What happened?

Steps to reproduce (minimal and consistent):

Open Learn → Values in Wordplay.

In the right panel, click stage to show the stage view.

Click the eye icon above the stage to switch to code view.

Click Collapse window (the collapse button above the code pane).

Click stage again to return to the stage view.

Actual behavior:
The stage toolbar returns but the eye icon (code toggle) does not reappear. There is no way to switch back to code view unless the page is refreshed.

Expected behavior:
When returning to the stage after collapsing, the full stage toolbar—including the eye icon—should be restored exactly as before the collapse.

Anything else?

This looks like a UI state restoration issue. After collapsing the window, the stage view seems to be rendered in a mode that hides the code-toggle controls. Refreshing the page resets the UI and restores the missing icon.

What browsers are you seeing the problem on?

Chrome

What operating system are you using?

macOS

[amyjko]

Reproduced, but this is by design. The eye button only shows when the project starts in full screen mode and the output tile is in full screen mode. In the example above, you didn't return to full screen mode, you just collapsed the code tile. All that said, this is relatively confusing and inconsistent behavior.

The original purpose of the view code button was to make it clear(er) how to see the code of a project that starts in full screen output mode. To make this clearer, we might make it so that the eye button always shows if the output window is tile is the only tile shown.