v0.3 Phase 4c: HC toggle + texture-intensity slider + grain overlay
Three additions land together so the slider is meaningful from day
one (instead of recording a preference that nothing consumes yet).
Static grain overlay.
- src/design-system/v0.3-quietware-tokens.css adds a fixed-position
body::after element that ships an SVG feTurbulence noise tile
repeated across the viewport. Opacity reads from
--quietware-texture-opacity. mix-blend-mode: overlay produces the
soft notebook-paper feel without obscuring content.
- pointer-events: none so clicks pass through. Active only under
html[data-design="quietware"]. High-contrast forces opacity to 0
via the existing HC palette block.
QuietwareAccessibilityControls component.
- NEW: src/lib/components/QuietwareAccessibilityControls.svelte.
Two controls, both quietware-only:
1. High-contrast toggle wires html[data-contrast="high"].
Overrides the OS prefers-contrast: more query when explicitly
on. Built on LumotiaToggle so it inherits the accessible
label + description pattern.
2. Texture-intensity slider, range 0.05 to 0.08, step 0.005,
default 0.06. Sets --quietware-texture-opacity inline on
<html>, overriding the per-mode default in the tokens CSS.
Disabled while high-contrast is on. Reset button restores
0.06.
- Persistence: localStorage keys
lumotia:quietware:high-contrast
lumotia:quietware:texture-opacity
so choices survive dev rebuilds and full restarts. Full
integration with the central Preferences store is a follow-up;
localStorage keeps Phase 4c contained.
SettingsPage Accessibility section.
- Imports the new QuietwareAccessibilityControls component.
- Renders {#if isQuietware} <QuietwareAccessibilityControls />
{/if} immediately after the existing AccessibilityControls block.
- Search filter copy extended to cover the new control vocabulary.
Verified.
- npm run check: 0 errors, 0 warnings across 5706 files.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
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src/lib/components/QuietwareAccessibilityControls.svelte
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140
src/lib/components/QuietwareAccessibilityControls.svelte
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<script lang="ts">
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// v0.3 Phase 4c — quietware-specific accessibility controls.
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//
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// Renders only when html[data-design="quietware"] is set. Provides two
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// controls that are not meaningful in the v0.2 surface:
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//
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// 1. High-contrast toggle. Sets html[data-contrast="high"] so the
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// quietware HC palette block activates. Overrides the OS
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// prefers-contrast: more query when explicitly enabled.
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//
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// 2. Texture-opacity slider. Range 0.05–0.08, default 0.06.
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// Persists to localStorage and applies as an inline style on
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// <html> so it overrides the default --quietware-texture-opacity
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// set by the tokens CSS. The static grain overlay defined in
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// v0.3-quietware-tokens.css consumes the variable.
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//
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// Both preferences persist via localStorage so the choice survives
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// dev rebuilds and full restarts. Full integration with the central
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// Preferences store is reserved for a follow-up commit; localStorage
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// keeps Phase 4c contained.
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import { onMount, onDestroy } from "svelte";
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import LumotiaToggle from "$lib/ui/LumotiaToggle.svelte";
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const HC_KEY = "lumotia:quietware:high-contrast";
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const TEXTURE_KEY = "lumotia:quietware:texture-opacity";
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const TEXTURE_MIN = 0.05;
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const TEXTURE_MAX = 0.08;
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const TEXTURE_STEP = 0.005;
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const TEXTURE_DEFAULT = 0.06;
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let highContrast = $state(false);
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let textureOpacity = $state(TEXTURE_DEFAULT);
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let mounted = $state(false);
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function applyHighContrast(v: boolean) {
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if (typeof document === "undefined") return;
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if (v) document.documentElement.setAttribute("data-contrast", "high");
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else document.documentElement.removeAttribute("data-contrast");
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}
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function applyTexture(v: number) {
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if (typeof document === "undefined") return;
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document.documentElement.style.setProperty("--quietware-texture-opacity", String(v));
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}
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onMount(() => {
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if (typeof localStorage === "undefined") {
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mounted = true;
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return;
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}
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const hcRaw = localStorage.getItem(HC_KEY);
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if (hcRaw === "1") highContrast = true;
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const txRaw = localStorage.getItem(TEXTURE_KEY);
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if (txRaw) {
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const parsed = Number(txRaw);
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if (Number.isFinite(parsed) && parsed >= TEXTURE_MIN && parsed <= TEXTURE_MAX) {
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textureOpacity = parsed;
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}
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}
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applyHighContrast(highContrast);
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applyTexture(textureOpacity);
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mounted = true;
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});
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onDestroy(() => {
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// Leave the document attributes in place. Other surfaces may rely on
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// them and we want HC + texture choices to persist beyond the
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// settings panel's lifecycle.
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});
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$effect(() => {
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if (!mounted) return;
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applyHighContrast(highContrast);
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try {
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localStorage.setItem(HC_KEY, highContrast ? "1" : "0");
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} catch {}
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});
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$effect(() => {
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if (!mounted) return;
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applyTexture(textureOpacity);
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try {
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localStorage.setItem(TEXTURE_KEY, String(textureOpacity));
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} catch {}
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});
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function onTextureInput(event: Event) {
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const v = Number((event.currentTarget as HTMLInputElement).value);
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if (Number.isFinite(v)) textureOpacity = v;
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}
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function resetTexture() {
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textureOpacity = TEXTURE_DEFAULT;
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}
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</script>
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<div class="flex flex-col gap-5 pt-2 border-t border-border-subtle mt-4">
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<p class="text-[12px] text-text-secondary font-medium">Tactile Quietware controls</p>
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<!-- High-contrast toggle. LumotiaToggle wraps the label and
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description so the control is programmatically associated. -->
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<LumotiaToggle
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bind:checked={highContrast}
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label="High contrast"
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description="Strip atmospheric texture and shift to a clarity-first palette. Overrides the OS prefers-contrast query when enabled."
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/>
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<!-- Texture-opacity slider -->
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<div class="flex flex-col gap-2">
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<div class="flex items-baseline justify-between">
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<p class="text-[13px] font-medium text-text">Texture intensity</p>
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<span class="text-[12px] text-text-tertiary font-mono">{(textureOpacity * 100).toFixed(1)}%</span>
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</div>
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<p class="text-[12px] text-text-secondary">
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Strength of the static grain overlay. 5% baseline, 8% upper end.
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Slider is disabled when high-contrast mode is active.
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</p>
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<div class="flex items-center gap-3">
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<input
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type="range"
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min={TEXTURE_MIN}
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max={TEXTURE_MAX}
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step={TEXTURE_STEP}
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value={textureOpacity}
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oninput={onTextureInput}
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disabled={highContrast}
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aria-label="Texture intensity"
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class="flex-1 accent-info disabled:opacity-50"
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/>
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<button
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type="button"
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onclick={resetTexture}
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disabled={highContrast}
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class="px-2.5 py-1 text-[11px] rounded border border-border-subtle text-text-secondary
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hover:text-text hover:border-border disabled:opacity-50"
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>Reset</button>
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</div>
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</div>
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</div>
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