StackDeck.tsx

1import { createMemo, createSignal, For, onMount, onCleanup } from "solid-js";2import { StackCard } from "./StackCard";3import type { CardId, StackBodies, StackCardSpec } from "./types";45interface StackDeckProps {6  active: CardId;7  onActiveChange: (id: CardId) => void;8  onBack: () => void;9  cards: readonly StackCardSpec[];10  bodies: StackBodies;11  /** Extension version string (e.g. "3.6.38"), shown next to the card counter. */12  version?: string;13}1415const EXPANDED_H = 258;16const DEFAULT_FOCUS_H = 462;17const TAB_H = 46;18const TAB_OVERLAP = 14;1920export function StackDeck(props: StackDeckProps) {21  const [deckOpen, setDeckOpen] = createSignal(true);22  const [focusHeight, setFocusHeight] = createSignal(DEFAULT_FOCUS_H);23  const [textScale, setTextScale] = createSignal(1);24  let focusedAt = 0;25  let deckEl: HTMLDivElement | undefined;2627  function handleBack() {28    if (!deckOpen()) {29      setDeckOpen(true);30    } else {31      props.onBack();32    }33  }3435  onMount(() => {36    const listener = () => handleBack();37    window.addEventListener("peach:settings-back", listener);3839    const updateFocusHeight = () => {40      if (!deckEl) return;41      const scale = Number.parseFloat(42        getComputedStyle(document.documentElement).getPropertyValue("--peach-text-scale")43      );44      setTextScale(Number.isFinite(scale) && scale > 0 ? scale : 1);45      setFocusHeight(deckEl.clientHeight || DEFAULT_FOCUS_H);46    };47    updateFocusHeight();48    const observer =49      typeof ResizeObserver === "undefined"50        ? undefined51        : new ResizeObserver(updateFocusHeight);52    if (deckEl) observer?.observe(deckEl);53    if (!observer) window.addEventListener("resize", updateFocusHeight);5455    onCleanup(() => {56      window.removeEventListener("peach:settings-back", listener);57      observer?.disconnect();58      if (!observer) window.removeEventListener("resize", updateFocusHeight);59    });60  });6162  const activeIndex = createMemo(() => {63    const idx = props.cards.findIndex((card) => card.id === props.active);64    return idx >= 0 ? idx : 0;65  });66  const scaled = (px: number) => px / textScale();6768  return (69    <section class="stk-shell" aria-label="Settings">70      <div class="stk-mast">71        <button72          class="stk-back"73          onClick={handleBack}74          aria-label="Back"75          type="button"76        >77          <svg width="7" height="12" viewBox="0 0 7 12" fill="none" stroke="currentColor" stroke-width="1.1" stroke-linecap="round" stroke-linejoin="round">78            <path d="M6 1L1 6L6 11" />79          </svg>80        </button>81        <div class="stk-mast-title">Settings</div>82        <div class="stk-mast-meta">83          <span class="stk-mast-counter">{activeIndex() + 1} / {props.cards.length}</span>84          {props.version && <span class="stk-mast-version">v{props.version}</span>}85        </div>86      </div>8788      <div89        ref={(el) => { deckEl = el; }}90        class={`stk-deck ${deckOpen() ? "is-open" : "is-focused"}`}91        onWheel={(e) => {92          const cardEl = (e.target as HTMLElement).closest<HTMLElement>("[data-settings-card-id]");93          if (!cardEl || cardEl.dataset.active !== "true") return;94          if (deckOpen() && e.deltaY > 5) {95            // Scroll down on active card → unveil to focus mode96            setDeckOpen(false);97            focusedAt = Date.now();98          } else if (!deckOpen() && e.deltaY < -5 && Date.now() - focusedAt > 300) {99            // Scroll up at top of focused card → minimize back to deck100            // 300ms guard prevents fighting right after unveil101            const body = cardEl.querySelector<HTMLElement>(".stk-card-body");102            if (!body || body.scrollTop === 0) setDeckOpen(true);103          }104        }}105      >106        <For each={props.cards}>107          {(card, index) => {108            const active = () => card.id === props.active;109            const concealed = () => !deckOpen() && !active();110            const distance = createMemo(() => {111              const ai = activeIndex();112              const ci = index();113              if (ci === ai) return -1;114              if (ci > ai) return ci - ai - 1;115              return props.cards.length - ai + ci - 1;116            });117            const top = () => {118              if (active()) return 0;119              if (!deckOpen()) return focusHeight() + 44 + distance() * 8;120              return scaled(EXPANDED_H - TAB_OVERLAP) + distance() * scaled(TAB_H - TAB_OVERLAP);121            };122            const zIndex = () => (active() ? 99 : 50 - distance());123124            return (125              <StackCard126                spec={card}127                active={active()}128                focused={!deckOpen() && active()}129                concealed={concealed()}130                top={top()}131                zIndex={zIndex()}132                onClick={() => {133                  if (active()) return;134                  props.onActiveChange(card.id);135                  setDeckOpen(false);136                }}137                height={active() ? (deckOpen() ? scaled(EXPANDED_H) : focusHeight()) : scaled(TAB_H + 4)}138              >139                {props.bodies[card.id]}140              </StackCard>141            );142          }}143        </For>144      </div>145    </section>146  );147}