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        </div>78      </div>7980      <div81        ref={(el) => { deckEl = el; }}82        class={`stk-deck ${deckOpen() ? "is-open" : "is-focused"}`}83        onWheel={(e) => {84          const cardEl = (e.target as HTMLElement).closest<HTMLElement>("[data-settings-card-id]");85          if (!cardEl || cardEl.dataset.active !== "true") return;86          if (deckOpen() && e.deltaY > 5) {87            // Scroll down on active card → unveil to focus mode88            setDeckOpen(false);89            focusedAt = Date.now();90          } else if (!deckOpen() && e.deltaY < -5 && Date.now() - focusedAt > 300) {91            // Scroll up at top of focused card → minimize back to deck92            // 300ms guard prevents fighting right after unveil93            const body = cardEl.querySelector<HTMLElement>(".stk-card-body");94            if (!body || body.scrollTop === 0) setDeckOpen(true);95          }96        }}97      >98        <For each={props.cards}>99          {(card, index) => {100            const active = () => card.id === props.active;101            const concealed = () => !deckOpen() && !active();102            const distance = createMemo(() => {103              const ai = activeIndex();104              const ci = index();105              if (ci === ai) return -1;106              if (ci > ai) return ci - ai - 1;107              return props.cards.length - ai + ci - 1;108            });109            const top = () => {110              if (active()) return 0;111              if (!deckOpen()) return focusHeight() + 44 + distance() * 8;112              return EXPANDED_H - TAB_OVERLAP + distance() * (TAB_H - TAB_OVERLAP);113            };114            const zIndex = () => (active() ? 99 : 50 - distance());115116            return (117              <StackCard118                spec={card}119                active={active()}120                focused={!deckOpen() && active()}121                concealed={concealed()}122                top={top()}123                zIndex={zIndex()}124                onClick={() => {125                  if (active()) return;126                  props.onActiveChange(card.id);127                  setDeckOpen(false);128                }}129                height={active() ? (deckOpen() ? EXPANDED_H : focusHeight()) : TAB_H + 4}130              >131                {props.bodies[card.id]}132              </StackCard>133            );134          }}135        </For>136      </div>137      {props.version && <span class="stk-version-corner">v{props.version}</span>}138    </section>139  );140}