robert
/
xjs


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220
							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Controls (chain / seek / scroll) - Animal.js</title>
    <link rel="stylesheet" href="../demo.css">
    <style>
        .demo-visual {
            gap: 18px;
        }
        .row {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
        }
        .box {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--highlight-color);
            transform: translateX(0px);
        }
        .bar-wrap {
            width: 100%;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 999px;
            overflow: hidden;
            height: 10px;
        }
        .bar {
            height: 100%;
            width: 0%;
            background: var(--orange);
        }
        .hint {
            font-size: 12px;
            color: #888;
        }
        .spacer {
            height: 80vh; /* enough to scroll inside the iframe */
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="page-top">
            <div class="crumb">ANIMATION &gt; EXAMPLES</div>
            <div class="since">CONTROLS</div>
        </div>

        <h1>Controls</h1>
        <p class="description">
            <code class="inline">animate()</code> returns a <strong>thenable controls object</strong>.
            You can <code class="inline">play/pause</code>, <code class="inline">seek()</code> (0..1),
            and wire it to <code class="inline">scroll()</code>.
        </p>

        <div class="box-container">
            <div class="box-header">
                <div class="box-title">Controls example</div>
                <div class="tabs">
                    <div class="tab active" onclick="switchTab('js')">JavaScript</div>
                    <div class="tab" onclick="switchTab('html')">HTML</div>
                    <div class="tab" onclick="switchTab('css')">CSS</div>
                </div>
            </div>

            <pre id="js-code" class="code-view active">const ctl = xjs('.ex-box').animate({
  x: 220,
  rotate: 180,
  opacity: 0.6,
  duration: 800,
  autoplay: false
});

// chainable controls
ctl.seek(0.25).play();

// still awaitable / thenable
ctl.then(() =&gt; console.log('done'));

// scroll-linked (works with WAAPI + JS fallback)
const progress = xjs('.ex-bar').animate({
  width: ['0%', '100%'],
  autoplay: false,
  duration: 1000
});
xjs.scroll(progress);</pre>

            <pre id="html-code" class="html-view">&lt;div class="ex-box"&gt;&lt;/div&gt;
&lt;div class="bar-wrap"&gt;
  &lt;div class="ex-bar"&gt;&lt;/div&gt;
&lt;/div&gt;</pre>

            <pre id="css-code" class="css-view">.demo-visual { gap: 18px; }
.row {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--highlight-color);
  transform: translateX(0px);
}
.bar-wrap {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  overflow: hidden;
  height: 10px;
}
.bar { height: 100%; width: 0%; background: var(--orange); }
.hint { font-size: 12px; color: #888; }
.spacer { height: 80vh; }</pre>

            <div class="feature-desc">
                <strong>功能说明：</strong>演示 controls 对象的 <code class="inline">play/pause/seek</code> 与滚动联动：点击 REPLAY 后，在面板内滚动会驱动进度条动画。
            </div>

            <div class="demo-visual">
                <div class="row">
                    <div class="box ex-box" aria-label="demo box"></div>
                    <div class="hint">Click REPLAY, then scroll inside this panel.</div>
                </div>
                <div class="bar-wrap">
                    <div class="bar ex-bar" aria-label="progress bar"></div>
                </div>
                <div class="spacer"></div>
                <div class="hint">Scroll target area (spacer)</div>
            </div>

            <div class="action-bar">
                <button class="play-btn" onclick="runDemo()">REPLAY</button>
                <button class="play-btn secondary" onclick="pauseDemo()">PAUSE</button>
                <button class="play-btn secondary" onclick="resumeDemo()">RESUME</button>
            </div>
        </div>
    </div>

    <script src="../highlight_css.js"></script>
    <script src="../../xjs.js"></script>
    <script>
        function switchTab(tab) {
            document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
            document.querySelectorAll('.code-view, .html-view, .css-view').forEach(v => v.classList.remove('active'));
            if (tab === 'js') {
                document.querySelector('.tabs .tab:nth-child(1)')?.classList.add('active');
                document.getElementById('js-code').classList.add('active');
            } else if (tab === 'html') {
                document.querySelector('.tabs .tab:nth-child(2)')?.classList.add('active');
                document.getElementById('html-code').classList.add('active');
            } else {
                document.querySelector('.tabs .tab:nth-child(3)')?.classList.add('active');
                document.getElementById('css-code')?.classList.add('active');
            }
        }

        let cleanup = null;
        let __demoControls = [];
        function runDemo() {
                        // reset
            const box = document.querySelector('.ex-box');
            const bar = document.querySelector('.ex-bar');
            box.style.transform = 'none';
            box.style.opacity = '1';
            bar.style.width = '0%';

            // Remove previous scroll listener if any
            if (cleanup) cleanup();
            cleanup = null;
            __demoControls = [];

            const ctl = xjs('.ex-box').animate({
                x: 220,
                rotate: 180,
                opacity: 0.6,
                duration: 800,
                autoplay: false
            });
            __demoControls.push(ctl);
            ctl.seek(0.25).play();

            const progress = xjs('.ex-bar').animate({
                width: ['0%', '100%'],
                autoplay: false,
                duration: 1000
            });
            __demoControls.push(progress);
            cleanup = xjs.scroll(progress);
        }

        function pauseDemo() {
            __demoControls.forEach(c => { try { c?.pause?.(); } catch {} });
        }

        function resumeDemo() {
            __demoControls.forEach(c => {
                try {
                    if (typeof c?.resume === 'function') c.resume();
                    else if (typeof c?.play === 'function') c.play();
                } catch {}
            });
        }

        setTimeout(runDemo, 300);
    </script>
</body>
</html>