deckcraft/docs/slideshow-parity.md

# Slide show and presenter view: parity with PowerPoint

> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (interactive-deck clicks in the slide show; previous: major (created; measured from `crates/ui-egui/src/show.rs` and `crates/anim/src/show.rs` against PowerPoint 16.113's Slide Show tab and menu)) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (video seek frame-loss race fixed, upstream #416; previous: major, created; measured from `crates/ui-egui/src/show.rs` and `crates/anim/src/show.rs` against PowerPoint 16.113's Slide Show tab and menu) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (keyboard navigation from Presenter View) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (laser pointer in the show; the presenter window still does not move it; previous: major, created) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-14 · **Last updated:** 2026-10-14 · **Change:** trivial (Show Media Controls hides the show's playback bar and GIF button; breadth stays 66%) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-14 · **Last updated:** 2026-10-14 · **Change:** minor (See All Slides and zoom during the show; black and white from the presenter window; previous: major, created) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-14 · **Last updated:** 2026-10-14 · **Change:** minor (presenter timer pause/reset, clock and notes size; previous: minor, See All Slides and zoom) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-14 · **Last updated:** 2026-10-14 · **Change:** minor (custom show playback; previous: minor, presenter timer pause/reset) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-14 · **Last updated:** 2026-10-14 · **Change:** minor (go to slide shows the number while it is typed; previous: minor, custom show playback) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)

Presenting is the job PowerPoint is hired for. This doc covers the show window, presenter view,
rehearsal and recording. Transition and animation playback are in
[animation-parity.md](animation-parity.md); display hardware in
[hardware-parity.md](hardware-parity.md). Area score: checklist breadth **68%** (measured), **~60%
ready** (estimated), **10–16 h** to parity.

## Running the show

| Feature | PowerPoint | DeckCraft | Notes |
|---|---|---|---|
| Play from Start / from Current Slide (F5, Shift+F5, Cmd+Enter) | yes | yes | |
| Next/previous by click, arrows, Space, Page Up/Down, Enter, Backspace | yes | yes | #17 reported arrows not working in v0.3.0 AppImage; recheck |
| Go to slide (number + Enter), first/last | yes | yes: the digits show as "Go to slide …" until Enter, Backspace, Esc, or 3 seconds | Slide numbers are 1-based; 0 and a number past the end do not move |
| Black / white screen (B / W) | yes | yes | |
| End screen, Esc to leave | yes | yes | |
| Step clock: a click after a long pause plays its step (#11) | yes | yes | |
| Hidden slides skipped | yes | yes | |
| Hyperlinks and action settings followed (slides, web, mail, End Show, Last Viewed) | yes | yes | Only `http(s)` and `mailto` open outside the show, by design (`safe_url`) |
| A shape with a triggered animation plays it when clicked; shapes an animation has hidden cannot be clicked; a shape without an action on top of one with an action blocks it; the pointer is a hand over what can be clicked | yes | yes | Click boxes are bounding boxes; "play sound" actions (`ppaction://media`) do nothing yet |
| A slide the show returns to (link, arrow keys) looks as it was left; a triggered animation goes on where it stopped | yes | yes | A main-sequence step still playing when the show leaves is finished |
| "Advance on click" off: a click never leaves the slide (animation steps still play, keys still move on) | yes | yes | |
| Hyperlinks and action settings followed (slides, web, mail, End Show, Last Viewed, Custom Show) | yes | yes | Only `http(s)` and `mailto` open outside the show, by design (`safe_url`). A Custom Show action plays that show |
| Media playback with controls, play across slides, full-screen video | yes | yes | WMA/WMV not decodable |
| Media playback with controls, play across slides, full-screen video | yes | yes | Seeks and loops preserve new-generation video frames and end-of-stream; queue regression and repeated seeks across H.264/HEVC/VP9/AV1 in `crates/media`. WMA/WMV not decodable |
| Media playback with controls, play across slides, full-screen video, Play/Pause/Stop in the click sequence | yes | yes | WMA/WMV not decodable; click sequence since #116 |
| Media playback with controls, play across slides, full-screen video | yes | yes | WMA/WMV not decodable. Slide Show ▸ Show Media Controls (on by default) hides the playback bar |
| Animated GIFs play; pause from their corner button | yes | yes (#39) | The corner button hides with Show Media Controls |
| See All Slides grid during the show | yes | yes: G, or All on the show bar and in presenter view; click a thumbnail, Esc closes the grid | Hidden slides are labelled; the first 48 slides are shown |
| Zoom into part of a slide during the show | yes | yes: Z, then click the slide (or the presenter slide); 2×, Esc or another click leaves it | The presenter keeps the whole slide and draws a frame on the zoomed part |
| Pen and highlighter ink | yes | pen only (Cmd+P pen, Cmd+A arrow, E erases all ink) | No highlighter, per-stroke eraser, ink colours, or keep/discard annotations prompt |
| Laser pointer | yes | yes in the show | Cmd/Ctrl+L and the on-screen button draw the show's laser colour and leave no ink. The presenter window does not move that dot |
| Subtitles and live captions | yes (cloud speech) | no | AI dimension |
| Custom shows | yes | yes: Show plays that list in order and does not change Set Up; Set Up Slide Show can keep one for Play from Start | Hidden slides in the list are skipped |
| Set Up Show: loop until Esc, kiosk (browsed at a kiosk), show without animation/narration, pen colour, slides range | yes | yes, most options | |
| Use rehearsed timings | yes | yes | |

## Presenter view

| Feature | PowerPoint | DeckCraft | Notes |
|---|---|---|---|
| Separate presenter window with current slide, next slide, notes | yes | yes (an egui viewport, 1100×700) | |
| Elapsed timer | yes | yes | |
| Pause / reset timer, clock | yes | yes: Pause/Resume and Reset in presenter view (T pauses, R resets); the clock is local time, `--:--` where there is no clock | Pausing the timer does not pause the show, animations or rehearsal |
| Slide counter, previous/next/end buttons | yes | yes | |
| Keyboard navigation while Presenter View has focus | yes | yes | Shares the audience window's key handling; handled keys are consumed before buttons, and the presenter stays available at the end screen |
| Notes font size, scrolling | yes | yes: A- / A+ (and `[` / `]`), 12–48 pt in steps of 4, default 18; the notes scroll | |
| Placed on the presenter's display automatically, show on the projector | yes | **no**: opens wherever the OS puts it | Beta blocker, 3–5 h. Open PR #433 places the show on a second display when one is attached. This change does not |
| Swap displays | yes | no | Still open on #433 |
| Pen, laser, black screen, zoom from presenter view | yes | Black, White and Zoom buttons; the audience zoom is framed on the presenter slide | Pen and the laser pointer are still keys only; there is no laser yet |
| See all slides from presenter view | yes | yes: All slides opens the grid on the show | |
| Rehearse with Coach (Speaker Coach) | yes (cloud) | no | AI dimension |

## Rehearse and record

| Feature | PowerPoint | DeckCraft |
|---|---|---|
| Rehearse Timings, keep timings | yes | yes |
| Record Slide Show (narration, ink, laser, camera; Cameo) | yes | no |
| Clear timing / narration | yes | timings only |
| Export the recorded show to video | yes | no (see [file-format-parity.md](file-format-parity.md)) |

## Reading View

Reading View in a window with navigation: present (checklist row done).

## Estimates

| Work | Hours |
|---|---|
| Presenter view on the right display, swap displays, pause/reset timer, clock, notes size | 3–5 |
| Highlighter, eraser, keep-annotations prompt, laser from presenter view | 2–4 |
| See All Slides and zoom during the show | 2–3 |
| Presenter view on the right display and a swap-displays command | 2–4 |
| Laser pointer, highlighter, eraser, keep-annotations prompt | 2–4 |
| Record slide show with narration (no camera) | 5–8 |
| **Total** | **~9–16** (the slide-show row of the feature table carries 10–16 h; recording overlaps the Media row) |

## Revision history

| Date | Change | Summary |
|---|---|---|
| 2026-10-13 | minor | Click handling for interactive decks: triggers, per-slide state kept across visits, visible-shape hit testing with hand cursor, advance on click |
| 2026-10-13 | minor | Video seek handoff no longer discards freshly decoded frames or end-of-stream (upstream #416); deterministic queue and four-codec seek regression tests |
| 2026-10-14 | minor | Presenter View handles slideshow keys in its own viewport, including returning from the end screen and Escape; regression tests cover navigation and avoiding duplicate button activation |
| 2026-10-11 | minor | Media effects (Play, Pause, Stop) in the click sequence play with their step (#116) |
| 2026-10-13 | minor | The show has a laser pointer (Cmd/Ctrl+L, the show's laser colour, no ink). Presenter view still does not drive it |
| 2026-10-14 | trivial | Show Media Controls hides the show's playback bar and GIF button |
| 2026-10-14 | minor | Typing a slide number during the show shows it, and Enter goes there. Esc clears the number before it leaves the show. Checklist breadth stays 66% |
| 2026-10-14 | minor | A custom show plays only its slides, from the Custom Shows dialog, from Set Up Slide Show, or from a click action. Checklist breadth stays 66% |
| 2026-10-14 | minor | Presenter view pauses and resets its timer (T, R) and changes notes size (A-/A+, brackets). The clock shows local time. Second-display placement and swap stay with #433. Checklist breadth stays 66% |
| 2026-10-14 | minor | See All Slides (G) and click-to-zoom (Z) during the show. Presenter view opens that grid and sets black, white and zoom. Checklist breadth stays 66% |
| 2026-10-10 | major | Created: show, presenter view, rehearse and record, compared with PowerPoint 16.113's Slide Show tab and menu |