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Float the selection bar over the grid instead of above it

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Selecting the first photograph inserted a 40px row into the view's
vertical flow, so every cell in the grid moved down by it. The act of
selecting shifted the thing being selected out from under the finger —
and a second tap aimed at the neighbour landed on the row below it,
which is the worst possible response to a gesture whose whole job is to
say "this one".

The bar is a floating one now, at the foot of the view. Nothing above it
is re-laid out, so selecting changes what is drawn and never where.

The grid's viewport grows by the same 40px while the bar is there rather
than the Flickable shrinking, which is what keeps that change invisible
too: every cell stays exactly where it was and there is simply further to
scroll, so the last row can be brought clear of the bar instead of being
trapped under it.

It also swallows presses that land on it. A bar floating over the grid is
a bar a thumb can reach for and miss into.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
dtourolle
2026-08-30 09:47:20 +02:00
co-authored by Claude Opus 5
parent ea88216008
commit b120ce48ec
4 changed files with 207 additions and 186 deletions
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docs/gestures.md
+27 -27
View File
@@ -54,7 +54,7 @@ The right match confidence is a property of your library, not of the model. "Wha
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.
<sub>`ui/dr-ui/ui/library.slint:1282`</sub>
<sub>`ui/dr-ui/ui/library.slint:1274`</sub>
### Add or remove one photograph
@@ -63,7 +63,7 @@ Touch has no ctrl, so without a mode there is no way to select a second photogra
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.
<sub>`ui/dr-ui/ui/library.slint:1291`</sub>
<sub>`ui/dr-ui/ui/library.slint:1283`</sub>
### Leave selecting
@@ -71,7 +71,7 @@ While selecting, a tap never opens. That is the whole point of the mode: one mea
- **Pointer** — Press Done in the header
- **Keyboard** — Escape
<sub>`ui/dr-ui/ui/library.slint:1299`</sub>
<sub>`ui/dr-ui/ui/library.slint:1291`</sub>
### Select a range
@@ -80,7 +80,7 @@ While selecting, a tap never opens. That is the whole point of the mode: one mea
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.
<sub>`ui/dr-ui/ui/library.slint:1360`</sub>
<sub>`ui/dr-ui/ui/library.slint:1352`</sub>
### Find photographs with two people in them
@@ -89,25 +89,7 @@ This replaced a double tap, which had no visible state and could take forty phot
"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.
<sub>`ui/dr-ui/ui/library.slint:2101`</sub>
### 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.
<sub>`ui/dr-ui/ui/library.slint:2392`</sub>
### 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.
<sub>`ui/dr-ui/ui/library.slint:2409`</sub>
<sub>`ui/dr-ui/ui/library.slint:2093`</sub>
### Resize the thumbnails
@@ -116,7 +98,7 @@ A scoped grid of two hundred frames is two hundred taps otherwise, and "all of t
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.
<sub>`ui/dr-ui/ui/library.slint:2850`</sub>
<sub>`ui/dr-ui/ui/library.slint:2719`</sub>
### File photographs in a collection
@@ -125,7 +107,7 @@ There is no wheel on a tablet, so without the pinch the cell size could only be
The selection is what the drag carries, which is why selecting several is worth the mode: forty photographs file in one gesture.
<sub>`ui/dr-ui/ui/library.slint:2999`</sub>
<sub>`ui/dr-ui/ui/library.slint:2878`</sub>
### Open a photograph
@@ -134,7 +116,7 @@ The selection is what the drag carries, which is why selecting several is worth
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.
<sub>`ui/dr-ui/ui/library.slint:3229`</sub>
<sub>`ui/dr-ui/ui/library.slint:3133`</sub>
### Rate a photograph without opening it
@@ -144,4 +126,22 @@ A tap opens; a tap that *moved* does not. Travel is what separates a deliberate
A star has to take the press without it also reaching the cell, or every rating throws the user into develop.
<sub>`ui/dr-ui/ui/library.slint:3341`</sub>
<sub>`ui/dr-ui/ui/library.slint:3245`</sub>
### 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.
<sub>`ui/dr-ui/ui/library.slint:3808`</sub>
### 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.
<sub>`ui/dr-ui/ui/library.slint:3825`</sub>