[okular] [Bug 425593] presentation window resized and moved to top left corner by touch gesture

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=425593

--- Comment #2 from keschurter at gmail.com ---
(In reply to David Hurka from comment #1)
> I changed the screen switching code of PresentationWidget to un-fullscreen,
> move, fullscreen when the screen is changed through the screen selection
> button. If only un-fullscreen is respected by the window manager, we get the
> result in your screenshot. The new size is 640×480, which is kind of the
> standard size of QWidget. But since screen switching is not involved (as I
> understand you), that is unlikely to be related.

Correct, I am using the "current screen" option.

> I think someone else did some changes on the top toolbar, to be able to
> access it on a touchscreen or tablet. I don’t remember when that was.
> 
> Do you have the issue only in 1.11, or did you already observe it in 1.10,
> or maybe even 1.9?

I was not using Okular before 1.11. (I was recently looking for a good doc
viewer with freehand annotation tools for remote teaching this fall. Found one
in Okular. Thanks!)

The same thing happens when I go back to 1.10 and 1.9.2. I tried to bisect the
issue, but the flatpak failed to launch for versions <1.9.2.

> And since you say “presentation window”: Do you set the presentation widget
> to be windowed (not fullscreen) in your window manager, or is it windowed
> otherwise? It is intended to be fullscreen, i. e. cover the whole screen
> with nothing but the page.

I did not change anything with X window manager and I am not sure where that
configuration option is. Everything looks normal when I first start
presentation mode: it covers the whole screen with nothing but the page, no
titlebar, etc. But it is always a separate window from the main app window in
the sense that using super+` toggles between them. I am not sure if this is
what you mean. Please let me know if there is a configuration file you would
like to see.

As you say, the presentation widget (window?) appears to forget how large the
screen is after I swipe down from the top edge. Hovering over the edges of the
widget with the cursor does not show the resizing arrow cursor <->. Using the
alt+space shortcut, which brings up the window menu in pop-os, I can resize the
shrunken widget. Maximizing it almost restores the presentation to its original
state, except that the top bar is still visible.

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