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dtourolle 1c5c55b4c9 Let the photographer say which frame the burst stands for

`choose_representative` has been in the catalog since the grouping landed,
with tests behind it and nothing calling it. So the frame a folded burst drew
was always the earliest one, and the only way to disagree was to open the
group and leave it open — which is to say there was no way to disagree at all,
because a burst that stays open is a burst that was never collapsed.

The earliest frame is the right default and it is deliberately not a
judgement: nothing here scores a photograph, and FR-CULL-5 names the failure
that rule avoids. But the whole point of a burst is that one of the twelve is
better than the other eleven, and the person who knows which is the one
looking at them.

So a ring on each frame of an open group, ticked on the one the group folds
to. It is drawn only while the burst is open, because that is the one moment
the alternatives are on screen to be compared — offering the choice on a
folded burst would be asking about frames it is hiding. Bottom right, opposite
the count in the other corner, clear of the flag and the collection badge and,
deliberately, of the trash target: a slip between the ring and the fifth star
sets a rating, which is the harmless direction for an ambiguous press.

The mark stays live on the frame that already wears it. A disabled TouchArea
would let the press fall through to the cell behind it, so tapping the one
ring that is ticked would have opened the photograph — and pressing it is a
thing the user may mean anyway: it records the choice the default was making
silently, which then survives a regroup that finds an earlier frame.

Choosing repaints the badges instead of reloading the window, which is what
separates it from folding a group up. Folding changes what the grid's query
returns; this changes only which cell wears the tick, and the tick has to
leave the frame that was carrying it, so the whole window is refilled in the
one statement `sync_badges` already runs.

The gesture is documented where FR-UI-4 requires it to be documented: in a
tagged comment beside the control, which is the only copy. The gesture book,
the gesture document and the requirements matrix are regenerated from the tree
alongside it.

2026-09-06 19:01:49 +02:00

7.5 KiB

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How the application is driven

Every entry here is extracted from the comment beside the code that implements it, so this file cannot describe a gesture the application does not have. Add one by writing a GESTURE: block next to the implementation; there is nowhere else to write it.

17 gestures, in 2 places.

People

Pull a face out of the wrong person

Touch — Tap the faces that do not belong, then "Split off"
Pointer — Click the faces that do not belong, then "Split off"

Grouping over-merges on siblings, on parents and children, and on the same person a decade apart, so splitting is as prominent as merging. A tool that can only merge makes its own errors permanent.

_{ui/dr-ui/ui/identity.slint:130}

Rule on a suggested face

Touch — Tick to confirm it, cross to reject it
Pointer — Tick to confirm it, cross to reject it

A face is either the system's guess or the user's judgement, and the two are never conflated. A rejection is remembered, so the face is not suggested for that person again. The gesture note above is the whole label: a tick and a cross are only "confirm" and "reject" to someone who can see the suggestion they sit beside, and IconButton's fallback would announce them as "check" and "cross" — two icon names that say nothing about which person is being ruled on.

_{ui/dr-ui/ui/identity.slint:150}

See a person's photographs

Touch — Choose them in the rail, then "Show photos"
Pointer — Choose them in the rail, then "Show photos"

This is the point of having identified anybody. Without it the screen is a filing cabinet with no drawer handles.

_{ui/dr-ui/ui/identity.slint:571}

Change how faces are grouped

Touch — "Grouping…", move the dials, then Regroup
Pointer — "Grouping…", move the dials, then Regroup

The right match confidence is a property of your library, not of the model. "What would this do?" answers for this library without writing anything; names, confirmations and the groups you have set aside are kept whatever the dials say.

_{ui/dr-ui/ui/identity.slint:608}

Library grid

Start selecting several photographs

Touch — Press and hold a photograph, or press Select in the header
Pointer — Ctrl-click, or press Select in the header

Touch has no ctrl, so without a mode there is no way to select a second photograph — the first tap would open it. The hold is the fast way in and the button is the one that can be found.

_{ui/dr-ui/ui/library.slint:1302}

Add or remove one photograph

Touch — While selecting, tap it
Pointer — Ctrl-click it

While selecting, a tap never opens. That is the whole point of the mode: one meaning per gesture at a time. Press Done to get tap-to-open back.

_{ui/dr-ui/ui/library.slint:1311}

Leave selecting

Touch — Press Done in the header
Pointer — Press Done in the header
Keyboard — Escape

_{ui/dr-ui/ui/library.slint:1319}

Pick a photograph up to drag it

Touch — Press and hold it until a ring opens around it, then drag
Pointer — Drag it

A finger on a photograph might be starting a scroll, and for the first half-second the grid assumes it is. Holding says otherwise, and the ring is the grid saying it heard — from there the drag cannot be lost to a scroll. A mouse never waits: the cursor is precise enough that a sideways drag is unambiguous from the first pixel.

_{ui/dr-ui/ui/library.slint:1349}

Select a range

Touch — While selecting, press "Select to…", then tap the last photograph of the run
Pointer — Shift-click the last photograph of the run

This replaced a double tap, which had no visible state and could take forty photographs by accident. The run is resolved by the catalog rather than by what is on screen, so the grid can scroll between the two taps — the ranges that hurt on a tablet are longer than a screenful, which is exactly where a finger sweep runs out.

_{ui/dr-ui/ui/library.slint:1414}

Find photographs with two people in them

Touch — Open the People chip on the filter bar, tap each name, then switch the chip beside them to "all of them"
Pointer — Open the People chip on the filter bar, click each name, then switch the chip beside them to "all of them"

"Any of them" is a union and "all of them" is an intersection. The tray is where both terms and the choice between them live, because a filter belongs on the filter bar.

_{ui/dr-ui/ui/library.slint:2096}

Resize the thumbnails

Touch — Pinch the grid with two fingers
Pointer — Ctrl and the scroll wheel

There is no wheel on a tablet, so without the pinch the cell size could only be changed by a control a finger cannot reach.

_{ui/dr-ui/ui/library.slint:2749}

File photographs in a collection

Touch — Drag a photograph — or a whole selection — onto a collection in the sidebar. Starting a drag stops the press becoming a hold, so it cannot leave you in selection mode.
Pointer — Drag a photograph — or a whole selection — onto a collection in the sidebar

The selection is what the drag carries, which is why selecting several is worth the mode: forty photographs file in one gesture.

_{ui/dr-ui/ui/library.slint:2946}

Open a photograph

Touch — Tap it — a single tap, any length
Pointer — Click it

A tap opens; a tap that moved does not. Travel is what separates a deliberate tap from a hand brushing past, and it is the only thing that does: the two are the same length. An earlier version required the finger to dwell 120 ms instead, and that rejected ordinary taps — a real tap is often quicker than a brush.

_{ui/dr-ui/ui/library.slint:3214}

Rate a photograph without opening it

Touch — Tap a star on the cell
Pointer — Hover the cell, then click a star
Keyboard — 0 to 5 on the selection

A star has to take the press without it also reaching the cell, or every rating throws the user into develop.

_{ui/dr-ui/ui/library.slint:3334}

Choose the frame a folded burst shows

Touch — Open the burst, then tap the ring on the frame you want
Pointer — Open the burst, then click the ring on the frame you want

A folded burst draws its earliest frame, which is a fact about the clock and not a judgement about the photograph — nothing in this application ranks a frame (FR-CULL-5). But the point of a burst is that one of the twelve is better than the other eleven, and the photographer is the only one who knows which. So the choice is offered on the frames themselves, while they are open and side by side, which is the one moment the alternatives are on screen to be compared.

_{ui/dr-ui/ui/library.slint:3465}

Drop the selection but keep selecting

Touch — Press Clear in the selection strip
Pointer — Press Clear in the selection strip

Distinct from Done, which leaves the mode entirely. Clearing keeps it, so the next selection can start straight away.

_{ui/dr-ui/ui/library.slint:4126}

Select everything the grid is showing

Touch — While selecting, press "Select all"
Pointer — While selecting, press "Select all"

A scoped grid of two hundred frames is two hundred taps otherwise, and "all of them, except those three" is a far more common shape than the taps it took to say it.

_{ui/dr-ui/ui/library.slint:4143}

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