Classroom_Desktop/docs/backlog.md

Backlog — 0.3.0 and later

Recorded after hands-on testing of 0.2.6.1 in September 2026. None of this is in 0.2.6.2, which is limited to picture printing, the Presentations memory failure and the settings lockdown. Each item says what was observed, so whoever picks it up starts from the evidence.

Wonder Ink

• An interface like Chrome's, visibly the classroom's. Familiar tabs and back/forward/reload, without an address bar, new-tab button or anything that takes a teacher somewhere the lesson did not. The 0.2.6.1 tab strip is a step towards it, not the design.
• The PDF viewer's own Download button. It saves a copy, which the download handler then opens as another worksheet tab. Remove it, or intercept the download from a worksheet tab so it does nothing visible. (0.2.2 already skips re-opening a save from a worksheet tab — see from_worksheet in on_download — so check first which route it now takes.)
• One Print, not two. A worksheet tab has the viewer's printer icon and Wonder Ink's Print; both now open the same preview, but a teacher sees two buttons. One teacher-facing workflow.
• Readable worksheet names. Tabs show the downloaded file's name, which for many worksheets is a long generated prefix. Strip it, or take the name from the PDF's own title.
• A speaker on the tab that is playing sound (QWebEnginePage.recentlyAudible).
• Linked lesson text opens an intermediate popup instead of following the link, where Chrome follows it directly. Investigate: probably a site script choosing window.open for a gesture Wonder Ink reports differently, or createWindow being asked for a popup type we treat as a tab.
• Session retention. Today closing Wonder Ink signs the teacher out (session-only cookies). Wanted: recover from an accidental close, but expire after a configurable period of inactivity, including across restarts. Needs a design that never leaves one teacher signed in for the next — and first, a real account to measure where the site keeps its sign-in: 0.2.6.1 found cookies do clear on close, but the profile's Local Storage persists, and whether the site stores its token there has never been tested.
• The site's sluggishness, where it is ours. Measured in 0.2.6.1: Wonder Ink and Chrome take the same time (about 2.9 s cold) and the site is the weight — 119 – 160 requests, 3.2 MB, the Google Maps API loaded twice. Ours to look at: whether a classroom's QtWebEngine has its GPU (classroom-wonderink --diagnose on the machines), and the page shell being revalidated on every warm load (62 – 87 ms).
• The browser is scaled twice under Plasma (dpr 2.25 at 150%): classroom-browser forces UI_SCALE on a Chrome that already follows the compositor. Deliberately left in 0.2.6.x because teachers know that size, and Wonder Ink was matched to it. Decide once, for both.

Presentations

• A normal, maximisable application instead of the small floating library window.
• Consistently sized tiles in a responsive grid.
• No unnecessary internal scrollbars or stretched layouts. 0.2.6.2 had to give a row extra height by hand when a card carries the memory-failure message; the layout should size to its cards.
• Keep the window's size and position when importing a presentation or changing a cover.
• Click the slide to advance.
• Hide the pointer after a moment of stillness while presenting, and bring it back on movement.
• Keep the keyboard controls, and never advance when a playback control itself is clicked.
• Remote control of a presentation — later than 0.3.0.

The launcher and Parent Call

• Remove the subtitles under DVD and Presentations on the launcher.
• Parent Call appears among the ordinary applications for a moment and then disappears, which looks like a crash. Keep it reachable through its background or notification route without it flashing up as a window.

The settings lockdown

• A notification's Configure button still shows, and opens a small "module disabled" window (0.2.6.2). Hiding it needs a change to Plasma's notification applet, not configuration — revisit if Plasma gains a Kiosk key for it.
• The settings-module list is per Plasma release. tools/lab/converged-check fails when a new one appears; the list in config/plasma/xdg/kdeglobals then needs the new name.