Measure the screen, then decide what fits on it

The ride screen was built for a 1440x900 window and expressed its type
scale in vw. On a phone that fails twice over: 7vw of a 412px viewport is
29px, well under what is readable from the bars, and five side-by-side
readouts do not fit across 412px at any type size. Shrinking is not the
answer to a small screen — showing less is (FR-9.17, FR-9.18).

So screen size becomes a measured input. viewport.ts is a pure function
from a measurement — width, height, DPR, whether the pointer is coarse —
to a layout plan: type sizes in pixels, column counts, and which sections
earn their space. viewport.svelte.ts measures and publishes it as CSS
custom properties and data-* attributes; the stylesheets read those. The
three max-width media queries are gone, so there is now exactly one
definition of "narrow" in the codebase rather than four that can disagree
about where a phone starts.

The sizes are absolute rather than relative, and that is a physical
argument, not a preference. A number has to subtend enough visual angle
to read from the riding position. Desktop is ~96 CSS px per inch at about
a metre; Android's CSS pixel is the dp, ~160 per inch, and a bar-mounted
phone sits at roughly 0.6 m. (160/96) x (0.6/1.0) is almost exactly 1, so
the same pixel size is about as readable in both places — which is why
the floors are plain numbers with no per-platform correction, and why a
small screen is a content problem.

What gets dropped, and in what order: anything the rider cannot act on
mid-ride goes before anything they can. Sparklines first — they are
history, and a 60px chart is a smear. Then average / normalised / work /
burned, which is what the summary screen is for. The detail row survives
longer, because "climbing left" is the question a rider on a hill is
actually asking, and elapsed time stays on a phone while covered and
ascended go. The route profile is the screen's whole point (FR-9.7) and
goes only in landscape on a phone, where keeping it would leave nothing
for the numbers.

Touch is treated as an input, not a narrower mouse (FR-9.19): 48px
targets, hover styling suppressed so it does not stick after a tap, and
keyboard hints hidden — with a word added to the help button, which
carried only a key cap and would otherwise have become unpressable.

Being a pure function is the point: "does this fit on a Pixel 7" is now
answerable in CI on a machine with no phone attached. 15 tests, run by
`npm --prefix ui test`.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
2026-08-05 19:53:00 +02:00
co-authored by Claude Opus 5
parent 06b4635470
commit 7a4e2be65e
12 changed files with 1166 additions and 127 deletions
+370 -1
View File
@@ -19,7 +19,8 @@
"svelte-check": "^4.1.4",
"tslib": "^2.8.1",
"typescript": "^5.7.3",
"vite": "^6.0.11"
"vite": "^6.0.11",
"vitest": "^4.1.10"
}
},
"node_modules/@esbuild/aix-ppc64": {
@@ -923,6 +924,13 @@
"win32"
]
},
"node_modules/@standard-schema/spec": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz",
"integrity": "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==",
"dev": true,
"license": "MIT"
},
"node_modules/@sveltejs/acorn-typescript": {
"version": "1.0.11",
"resolved": "https://registry.npmjs.org/@sveltejs/acorn-typescript/-/acorn-typescript-1.0.11.tgz",
@@ -1009,6 +1017,24 @@
"dev": true,
"license": "MIT"
},
"node_modules/@types/chai": {
"version": "5.2.3",
"resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.2.3.tgz",
"integrity": "sha512-Mw558oeA9fFbv65/y4mHtXDs9bPnFMZAL/jxdPFUpOHHIXX91mcgEHbS5Lahr+pwZFR8A7GQleRWeI6cGFC2UA==",
"dev": true,
"license": "MIT",
"dependencies": {
"@types/deep-eql": "*",
"assertion-error": "^2.0.1"
}
},
"node_modules/@types/deep-eql": {
"version": "4.0.2",
"resolved": "https://registry.npmjs.org/@types/deep-eql/-/deep-eql-4.0.2.tgz",
"integrity": "sha512-c9h9dVVMigMPc4bwTvC5dxqtqJZwQPePsWjPlpSOnojbor6pGqdk541lfA7AqFQr5pB1BRdq0juY9db81BwyFw==",
"dev": true,
"license": "MIT"
},
"node_modules/@types/estree": {
"version": "1.0.9",
"resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.9.tgz",
@@ -1023,6 +1049,119 @@
"dev": true,
"license": "MIT"
},
"node_modules/@vitest/expect": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-4.1.10.tgz",
"integrity": "sha512-YsCn+qAk1GWjQOWFEsEcL2gNQ0zmVmQu3T03qP6UyjhtmdtwtbuI+DASn/7iQB3HGTXkdBwGddzxPlmiql5vlA==",
"dev": true,
"license": "MIT",
"dependencies": {
"@standard-schema/spec": "^1.1.0",
"@types/chai": "^5.2.2",
"@vitest/spy": "4.1.10",
"@vitest/utils": "4.1.10",
"chai": "^6.2.2",
"tinyrainbow": "^3.1.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
}
},
"node_modules/@vitest/mocker": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-4.1.10.tgz",
"integrity": "sha512-v0xaezt+DKEmKfaxg133ldzADrwLGd7Ze1MfQQTYfvs8OqZIwbxyxaYURivwV7sWy5fqn3rH5uOrSp07bp44Ow==",
"dev": true,
"license": "MIT",
"dependencies": {
"@vitest/spy": "4.1.10",
"estree-walker": "^3.0.3",
"magic-string": "^0.30.21"
},
"funding": {
"url": "https://opencollective.com/vitest"
},
"peerDependencies": {
"msw": "^2.4.9",
"vite": "^6.0.0 || ^7.0.0 || ^8.0.0"
},
"peerDependenciesMeta": {
"msw": {
"optional": true
},
"vite": {
"optional": true
}
}
},
"node_modules/@vitest/pretty-format": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/pretty-format/-/pretty-format-4.1.10.tgz",
"integrity": "sha512-W1HsjSH4MXQ9YfmmhLAoIYf1HRfekQCGngeIgcei6MP5QQGWUe0gkopdZQaVCFO+JDJMrAJGwa5pRpNpvy4P8Q==",
"dev": true,
"license": "MIT",
"dependencies": {
"tinyrainbow": "^3.1.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
}
},
"node_modules/@vitest/runner": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/runner/-/runner-4.1.10.tgz",
"integrity": "sha512-IKI6kpIH+LmpROplyLwBBaCfMgOZOMsygVa6BARD6ahA04VRuJSa6OaVG7kRvSEMD870Vd91rSSw0eegtWyLGg==",
"dev": true,
"license": "MIT",
"dependencies": {
"@vitest/utils": "4.1.10",
"pathe": "^2.0.3"
},
"funding": {
"url": "https://opencollective.com/vitest"
}
},
"node_modules/@vitest/snapshot": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/snapshot/-/snapshot-4.1.10.tgz",
"integrity": "sha512-xRkfOT1qpTAi/Ti4Y1LtfRc3kEuqxGw59eN2jN9pRWMtS/XDevekhcFSqvQqjUNGksfjMJu3Y+oJ+4Ypn2OaJw==",
"dev": true,
"license": "MIT",
"dependencies": {
"@vitest/pretty-format": "4.1.10",
"@vitest/utils": "4.1.10",
"magic-string": "^0.30.21",
"pathe": "^2.0.3"
},
"funding": {
"url": "https://opencollective.com/vitest"
}
},
"node_modules/@vitest/spy": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-4.1.10.tgz",
"integrity": "sha512-PLf/Ugvoq5wO/b4rwYCR1h2PSIdXz7wnkQFMiUpLdtM7l6pqVFcQIBEHyT1+l+cj7mNwAfZHzqXqDyjvOuwbDw==",
"dev": true,
"license": "MIT",
"funding": {
"url": "https://opencollective.com/vitest"
}
},
"node_modules/@vitest/utils": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/utils/-/utils-4.1.10.tgz",
"integrity": "sha512-fy9am/HWxbaGt/Sawrp90vt6Y6jQwf1RX77cz3uwoJwJVMli/e1IEwRPnMNJ7vKfPTwo0diXifkpPvwH9v7nGA==",
"dev": true,
"license": "MIT",
"dependencies": {
"@vitest/pretty-format": "4.1.10",
"convert-source-map": "^2.0.0",
"tinyrainbow": "^3.1.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
}
},
"node_modules/acorn": {
"version": "8.18.0",
"resolved": "https://registry.npmjs.org/acorn/-/acorn-8.18.0.tgz",
@@ -1046,6 +1185,16 @@
"node": ">= 0.4"
}
},
"node_modules/assertion-error": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
"integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=12"
}
},
"node_modules/axobject-query": {
"version": "4.1.0",
"resolved": "https://registry.npmjs.org/axobject-query/-/axobject-query-4.1.0.tgz",
@@ -1056,6 +1205,16 @@
"node": ">= 0.4"
}
},
"node_modules/chai": {
"version": "6.2.2",
"resolved": "https://registry.npmjs.org/chai/-/chai-6.2.2.tgz",
"integrity": "sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=18"
}
},
"node_modules/chokidar": {
"version": "4.0.3",
"resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.3.tgz",
@@ -1082,6 +1241,13 @@
"node": ">=6"
}
},
"node_modules/convert-source-map": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
"integrity": "sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==",
"dev": true,
"license": "MIT"
},
"node_modules/debug": {
"version": "4.4.3",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -1117,6 +1283,13 @@
"dev": true,
"license": "MIT"
},
"node_modules/es-module-lexer": {
"version": "2.3.1",
"resolved": "https://registry.npmjs.org/es-module-lexer/-/es-module-lexer-2.3.1.tgz",
"integrity": "sha512-shc1dbU90Yl/xq1QrC7QRtfcwURZuVRfPhZbDoldJ1cn1gzDvBaBWlv0eFolj5+0znnPJz5TXLxsN77X/12KTA==",
"dev": true,
"license": "MIT"
},
"node_modules/esbuild": {
"version": "0.25.12",
"resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.25.12.tgz",
@@ -1184,6 +1357,26 @@
}
}
},
"node_modules/estree-walker": {
"version": "3.0.3",
"resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-3.0.3.tgz",
"integrity": "sha512-7RUKfXgSMMkzt6ZuXmqapOurLGPPfgj6l9uRZ7lRGolvk0y2yocc35LdcxKC5PQZdn2DMqioAQ2NoWcrTKmm6g==",
"dev": true,
"license": "MIT",
"dependencies": {
"@types/estree": "^1.0.0"
}
},
"node_modules/expect-type": {
"version": "1.4.0",
"resolved": "https://registry.npmjs.org/expect-type/-/expect-type-1.4.0.tgz",
"integrity": "sha512-KfYbmpRm0VbLjEvVa9yGwCi9GI34xvi7A/HXYWQO65CSD2u3MczUJSuwXKFIxlGsgBQizV9q5J9NHj4VG0n+pA==",
"dev": true,
"license": "Apache-2.0",
"engines": {
"node": ">=12.0.0"
}
},
"node_modules/fdir": {
"version": "6.5.0",
"resolved": "https://registry.npmjs.org/fdir/-/fdir-6.5.0.tgz",
@@ -1290,6 +1483,27 @@
"node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
}
},
"node_modules/obug": {
"version": "2.1.4",
"resolved": "https://registry.npmjs.org/obug/-/obug-2.1.4.tgz",
"integrity": "sha512-4a+OsYv9UktOJKE+l1A4OufDgdRF9PifWj+tJnHURo/P+WOxpG4GzUFL9qCalmWauao6ogiG+QvnCovwPoyAWA==",
"dev": true,
"funding": [
"https://github.com/sponsors/sxzz",
"https://opencollective.com/debug"
],
"license": "MIT",
"engines": {
"node": ">=12.20.0"
}
},
"node_modules/pathe": {
"version": "2.0.3",
"resolved": "https://registry.npmjs.org/pathe/-/pathe-2.0.3.tgz",
"integrity": "sha512-WUjGcAqP1gQacoQe+OBJsFA7Ld4DyXuUIjZ5cc75cLHvJ7dtNsTugphxIADwspS+AraAUePCKrSVtPLFj/F88w==",
"dev": true,
"license": "MIT"
},
"node_modules/picocolors": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
@@ -1412,6 +1626,13 @@
"node": ">=6"
}
},
"node_modules/siginfo": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/siginfo/-/siginfo-2.0.0.tgz",
"integrity": "sha512-ybx0WO1/8bSBLEWXZvEd7gMW3Sn3JFlW3TvX1nREbDLRNQNaeNN8WK0meBwPdAaOI7TtRRRJn/Es1zhrrCHu7g==",
"dev": true,
"license": "ISC"
},
"node_modules/source-map-js": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
@@ -1422,6 +1643,20 @@
"node": ">=0.10.0"
}
},
"node_modules/stackback": {
"version": "0.0.2",
"resolved": "https://registry.npmjs.org/stackback/-/stackback-0.0.2.tgz",
"integrity": "sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==",
"dev": true,
"license": "MIT"
},
"node_modules/std-env": {
"version": "4.2.0",
"resolved": "https://registry.npmjs.org/std-env/-/std-env-4.2.0.tgz",
"integrity": "sha512-oCUKSupKTHX53EyjDtuZQ64pjLJ6yYCtpmEw0goYxtjG9KpbRe8KAsl2tBUGU9DyMcJ0RwJ8GqJAFzMXcXW1Rw==",
"dev": true,
"license": "MIT"
},
"node_modules/svelte": {
"version": "5.56.8",
"resolved": "https://registry.npmjs.org/svelte/-/svelte-5.56.8.tgz",
@@ -1475,6 +1710,23 @@
"typescript": "^5.0.0 || ^6.0.0"
}
},
"node_modules/tinybench": {
"version": "2.9.0",
"resolved": "https://registry.npmjs.org/tinybench/-/tinybench-2.9.0.tgz",
"integrity": "sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==",
"dev": true,
"license": "MIT"
},
"node_modules/tinyexec": {
"version": "1.3.0",
"resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-1.3.0.tgz",
"integrity": "sha512-QKAl9m8gWWGHV8jZcPeym6j+XULi6tOf1mT83WYJ4Lk2ytW/uwAWkrP0uFsdoYMdueVJ0qs26wZ+23xeB4ibNQ==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=18"
}
},
"node_modules/tinyglobby": {
"version": "0.2.17",
"resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.17.tgz",
@@ -1492,6 +1744,16 @@
"url": "https://github.com/sponsors/SuperchupuDev"
}
},
"node_modules/tinyrainbow": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/tinyrainbow/-/tinyrainbow-3.1.1.tgz",
"integrity": "sha512-yau8yJdTt989Mm0Bd/236QnzEiPf2xLLTqUZRUJOo/3CB078LSwzei343DgtJVmfJKJE3TMINY1u42SQsP6mXw==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=14.0.0"
}
},
"node_modules/tslib": {
"version": "2.8.1",
"resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
@@ -1614,6 +1876,113 @@
}
}
},
"node_modules/vitest": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/vitest/-/vitest-4.1.10.tgz",
"integrity": "sha512-R9jUTe5S4Qb0HCd4TNqpC7oGcrMssMRGXLW80ubjWsW9VH5GF8y1Y0SFLY9AbqSk6nt0PnOx4H4WNJYZ13GUPw==",
"dev": true,
"license": "MIT",
"dependencies": {
"@vitest/expect": "4.1.10",
"@vitest/mocker": "4.1.10",
"@vitest/pretty-format": "4.1.10",
"@vitest/runner": "4.1.10",
"@vitest/snapshot": "4.1.10",
"@vitest/spy": "4.1.10",
"@vitest/utils": "4.1.10",
"es-module-lexer": "^2.0.0",
"expect-type": "^1.3.0",
"magic-string": "^0.30.21",
"obug": "^2.1.1",
"pathe": "^2.0.3",
"picomatch": "^4.0.3",
"std-env": "^4.0.0-rc.1",
"tinybench": "^2.9.0",
"tinyexec": "^1.0.2",
"tinyglobby": "^0.2.15",
"tinyrainbow": "^3.1.0",
"vite": "^6.0.0 || ^7.0.0 || ^8.0.0",
"why-is-node-running": "^2.3.0"
},
"bin": {
"vitest": "vitest.mjs"
},
"engines": {
"node": "^20.0.0 || ^22.0.0 || >=24.0.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
},
"peerDependencies": {
"@edge-runtime/vm": "*",
"@opentelemetry/api": "^1.9.0",
"@types/node": "^20.0.0 || ^22.0.0 || >=24.0.0",
"@vitest/browser-playwright": "4.1.10",
"@vitest/browser-preview": "4.1.10",
"@vitest/browser-webdriverio": "4.1.10",
"@vitest/coverage-istanbul": "4.1.10",
"@vitest/coverage-v8": "4.1.10",
"@vitest/ui": "4.1.10",
"happy-dom": "*",
"jsdom": "*",
"vite": "^6.0.0 || ^7.0.0 || ^8.0.0"
},
"peerDependenciesMeta": {
"@edge-runtime/vm": {
"optional": true
},
"@opentelemetry/api": {
"optional": true
},
"@types/node": {
"optional": true
},
"@vitest/browser-playwright": {
"optional": true
},
"@vitest/browser-preview": {
"optional": true
},
"@vitest/browser-webdriverio": {
"optional": true
},
"@vitest/coverage-istanbul": {
"optional": true
},
"@vitest/coverage-v8": {
"optional": true
},
"@vitest/ui": {
"optional": true
},
"happy-dom": {
"optional": true
},
"jsdom": {
"optional": true
},
"vite": {
"optional": false
}
}
},
"node_modules/why-is-node-running": {
"version": "2.3.0",
"resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
"integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==",
"dev": true,
"license": "MIT",
"dependencies": {
"siginfo": "^2.0.0",
"stackback": "0.0.2"
},
"bin": {
"why-is-node-running": "cli.js"
},
"engines": {
"node": ">=8"
}
},
"node_modules/zimmerframe": {
"version": "1.1.4",
"resolved": "https://registry.npmjs.org/zimmerframe/-/zimmerframe-1.1.4.tgz",