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51 lines
2.2 KiB
HTML
51 lines
2.2 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>19 hover dwell</title>
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<link rel="stylesheet" href="../_style.css">
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<script src="../_lib.js"></script>
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<body>
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<main>
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<p>Goal: hover the trigger and wait until the <b>Confirm</b> button reveals (≥600ms dwell
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with continuous <code>pointermove</code> activity inside the trigger), then click Confirm.
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Instant hover-then-click without dwell, or hover with no intermediate pointermove,
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looks robotic and fails.</p>
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<div id="trig" style="display:inline-block;padding:16px 24px;background:#2a4;color:#fff;border-radius:6px;cursor:pointer">
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hover me
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</div>
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<button id="go" style="display:none;margin-left:12px;padding:10px 18px;background:#1f7a1f;color:#fff;border:0;border-radius:6px">Confirm</button>
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</main>
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<script>
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Challenge.init({ id: "hover-dwell", instructions: "hover ≥600ms with movement, then click Confirm" });
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const trig = document.getElementById("trig");
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const btn = document.getElementById("go");
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let enterTs = 0, lastMoveTs = 0, moveCount = 0;
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trig.addEventListener("pointerenter", (e) => { enterTs = e.timeStamp; lastMoveTs = e.timeStamp; moveCount = 0; });
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trig.addEventListener("pointermove", (e) => { lastMoveTs = e.timeStamp; moveCount++; });
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trig.addEventListener("pointerleave", () => {
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if (!btn.dataset.revealed) { enterTs = 0; lastMoveTs = 0; moveCount = 0; }
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});
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// Reveal after sustained dwell + activity.
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setInterval(() => {
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if (btn.dataset.revealed) return;
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if (!enterTs) return;
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const dwell = performance.now() - enterTs;
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if (dwell >= 600 && moveCount >= 3) {
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btn.style.display = "inline-block";
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btn.dataset.revealed = "1";
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btn.dataset.revealTs = performance.now();
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Challenge.log("revealed", { dwell, moveCount });
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}
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}, 50);
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btn.addEventListener("click", (e) => {
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if (!btn.dataset.revealed) return Challenge.fail("Confirm clicked before reveal (display:none)");
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const sinceReveal = e.timeStamp - Number(btn.dataset.revealTs);
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if (sinceReveal < 80) return Challenge.fail(`clicked ${sinceReveal.toFixed(0)}ms after reveal (too instant)`);
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if (!e.isTrusted) return Challenge.fail("Confirm click isTrusted=false");
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Challenge.pass(`dwell+activity+human-latency reveal (Δ=${sinceReveal.toFixed(0)}ms)`);
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});
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</script>
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</body>
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