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  let focusedAt = 0;24  let deckEl: HTMLDivElement | undefined;2526  function handleBack() {27    if (!deckOpen()) {28      setDeckOpen(true);29    } else {30      props.onBack();31    }32  }3334  onMount(() => {35    const listener = () => handleBack();36    window.addEventListener("peach:settings-back", listener);3738    const updateFocusHeight = () => {39      if (!deckEl) return;40      setFocusHeight(deckEl.clientHeight || DEFAULT_FOCUS_H);41    };42    updateFocusHeight();43    const observer =44      typeof ResizeObserver === "undefined"45        ? undefined46        : new ResizeObserver(updateFocusHeight);47    if (deckEl) observer?.observe(deckEl);48    if (!observer) window.addEventListener("resize", updateFocusHeight);4950    onCleanup(() => {51      window.removeEventListener("peach:settings-back", listener);52      observer?.disconnect();53      if (!observer) window.removeEventListener("resize", updateFocusHeight);54    });55  });5657  const activeIndex = createMemo(() => {58    const idx = props.cards.findIndex((card) => card.id === props.active);59    return idx >= 0 ? idx : 0;60  });61  return (62    <section class="stk-shell" aria-label="Settings">63      <div class="stk-mast">64        <button65          class="stk-back"66          onClick={handleBack}67          aria-label="Back"68          type="button"69        >70          <svg width="7" height="12" viewBox="0 0 7 12" fill="none" stroke="currentColor" stroke-width="1.1" stroke-linecap="round" stroke-linejoin="round">71            <path d="M6 1L1 6L6 11" />72          </svg>73        </button>74        <div class="stk-mast-title">Settings</div>75        <div class="stk-mast-meta">76          <span class="stk-mast-counter">{activeIndex() + 1} / {props.cards.length}</span>77          {props.version && <span class="stk-mast-version">v{props.version}</span>}78        </div>79      </div>8081      <div82        ref={(el) => { deckEl = el; }}83        class={`stk-deck ${deckOpen() ? "is-open" : "is-focused"}`}84        onWheel={(e) => {85          const cardEl = (e.target as HTMLElement).closest<HTMLElement>("[data-settings-card-id]");86          if (!cardEl || cardEl.dataset.active !== "true") return;87          if (deckOpen() && e.deltaY > 5) {88            // Scroll down on active card → unveil to focus mode89            setDeckOpen(false);90            focusedAt = Date.now();91          } else if (!deckOpen() && e.deltaY < -5 && Date.now() - focusedAt > 300) {92            // Scroll up at top of focused card → minimize back to deck93            // 300ms guard prevents fighting right after unveil94            const body = cardEl.querySelector<HTMLElement>(".stk-card-body");95            if (!body || body.scrollTop === 0) setDeckOpen(true);96          }97        }}98      >99        <For each={props.cards}>100          {(card, index) => {101            const active = () => card.id === props.active;102            const concealed = () => !deckOpen() && !active();103            const distance = createMemo(() => {104              const ai = activeIndex();105              const ci = index();106              if (ci === ai) return -1;107              if (ci > ai) return ci - ai - 1;108              return props.cards.length - ai + ci - 1;109            });110            const top = () => {111              if (active()) return 0;112              if (!deckOpen()) return focusHeight() + 44 + distance() * 8;113              return EXPANDED_H - TAB_OVERLAP + distance() * (TAB_H - TAB_OVERLAP);114            };115            const zIndex = () => (active() ? 99 : 50 - distance());116117            return (118              <StackCard119                spec={card}120                active={active()}121                focused={!deckOpen() && active()}122                concealed={concealed()}123                top={top()}124                zIndex={zIndex()}125                onClick={() => {126                  if (active()) return;127                  props.onActiveChange(card.id);128                  setDeckOpen(false);129                }}130                height={active() ? (deckOpen() ? EXPANDED_H : focusHeight()) : TAB_H + 4}131              >132                {props.bodies[card.id]}133              </StackCard>134            );135          }}136        </For>137      </div>138    </section>139  );140}