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Tactile UI

Kit parts

Aspect ratio

A frame that holds one shape, whatever is put in it. Say the shape (16:9, 4:3, 1:1, 3:2, 21:9, 3:4) and the frame takes its height from its width; a picture, a video or a map inside it is cropped to fit, keeping the middle unless you say which part to keep. Until a picture arrives the frame is a recess, so the page does not jump. An optional hairline round the edge keeps a pale picture from dissolving into a pale page. Plain CSS, with no script.

On this page
  1. Anatomy
  2. Variants
  3. States
  4. Props and options
  5. Usage notes
  6. Accessibility
  7. Related parts

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Anatomy

There is no script, no wrapper element and no padding trick, and the pictures on this page are small drawings held in the page itself.

Variants

  • 16:9
  • 4:3
  • 1:1
  • 3:2
  • 21:9
  • 3:4
  • Part to keep
  • Nothing cut off
  • With a caption
  • In a card · the corner is the card’s less its padding
  • A row of three · they stay a row
  • Before the picture arrives · the recess shows
  • Anything else · a block set in the frame

States

  • Cover
  • Cover · part kept
  • Contain
  • Hairline edge
  • No picture yet

Props and options

NameKindDescription
img · video · iframe · svg · canvaselementWhat fills the frame. Pictures and video are cropped with object-fit.

Usage notes

Choose a shape: the frame keeps it and the picture is cropped to fit. Move Position to keep a different part of the picture, and choose Contain to see all of it. The picture is the same one each time; only the frame changes.

Accessibility

  • The frame says nothing.
  • A frame that is waiting for a picture shows the recess and keeps its place, so the page does not move when the picture arrives.
  • Cropping loses what is outside the frame.
  • The hairline is drawn over the picture and is ignored by pointers, so it never gets in the way of a link or a video’s controls. It is the kit’s rule colour, which is set to show in every finish.
  • A frame never sets its own size in pixels, only its shape, so it follows its column. Nothing moves, so there is nothing to change for reduced motion.

Avatar

A person’s mark, struck like a coin: initials stamped into the field, or a photo set under the rim, with a status lamp mounted at five o’clock. Stacks into a group with a count.

Carousel

Slides seen one at a time through a viewer’s gate: transport keys either side of a frame counter on an LCD, lamp keys to jump, swipe on touch. Nothing moves on its own unless you ask it to.

Film strip

A carousel as a strip of film in a machined viewer. The frames run behind a gate lit from behind, with sprocket holes along both edges, and the frames either side wait under a smoked cover. It moves a frame at a time and settles as each one registers. Turn the thumbwheel, press the keys or swipe the film itself: underneath it is a native scroller with a snap point at every frame.

Lightbox

A grid of thumbnails that opens one picture large. Each thumbnail is a plate with the picture set in it, and a real link to the full picture, so the grid works without any script. Press one and the page goes behind a near-black scrim. Left and Right turn the page, Home and End go to the first and the last, Escape puts it away, and on a touch screen a swipe does the same. It is dark in every finish, because a picture is looked at best in a dark room.