Personal-Website/random.html at main · yyihaoc/Personal-Website · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Edge Smooth Scrolling</title>
    <style>
        /* Reset Styles */
        body, html {
            margin: 0;
            padding: 0;
            height: 100%;
            overflow: hidden;
        }

        /* Outer Container */
        .outer-container {
            height: 100%;
            overflow: hidden;
            position: relative;
        }

        /* Inner Wrapper */
        .inner-wrapper {
            height: 100%;
            transition: transform 0.8s ease; /* Smooth transition */
        }

        /* Individual Sections */
        .section {
            height: 100vh; /* Full viewport height */
            overflow-y: auto; /* Allow normal scrolling within sections */
            padding: 20px;
            box-sizing: border-box;
        }

        .section:nth-child(odd) {
            background-color: #6a5acd;
            color: white;
        }

        .section:nth-child(even) {
            background-color: #ff6347;
            color: white;
        }
    </style>
</head>
<body>
    <div class="outer-container">
        <div class="inner-wrapper" id="innerWrapper">
            <div class="section">
                <h1>Section 1</h1>
                <p>Scroll down to transition to the next section.</p>
                <p style="margin-top: 1200px;">End of Section 1</p>
            </div>
            <div class="section">
                <h1>Section 2</h1>
                <p>Scroll freely in this section.</p>
                <p style="margin-top: 1200px;">End of Section 2</p>
            </div>
            <div class="section">
                <h1>Section 3</h1>
                <p>Scroll down to transition to the next section.</p>
                <p style="margin-top: 1200px;">End of Section 3</p>
            </div>
        </div>
    </div>

    <script>
        const innerWrapper = document.getElementById('innerWrapper');
        const sections = document.querySelectorAll('.section');
        const threshold = 50; // Adjust this for edge detection
        let currentSection = 0;
        let isTransitioning = false;

        // Scroll event listener for each section
        sections.forEach((section, index) => {
            section.addEventListener('scroll', () => {
                if (isTransitioning) return;

                const scrollTop = section.scrollTop;
                const scrollHeight = section.scrollHeight;
                const clientHeight = section.clientHeight;

                if (scrollTop + clientHeight >= scrollHeight - threshold && index < sections.length - 1) {
                    // Near the bottom edge -> Transition to the next section
                    isTransitioning = true;
                    currentSection++;
                    smoothTransition();
                } else if (scrollTop <= threshold && index > 0) {
                    // Near the top edge -> Transition to the previous section
                    isTransitioning = true;
                    currentSection--;
                    smoothTransition();
                }
            });
        });

        // Smoothly transition between sections
        function smoothTransition() {
            const translateY = -currentSection * 100;
            innerWrapper.style.transform = `translateY(${translateY}vh)`;

            // Allow a delay for the transition to complete before enabling further transitions
            setTimeout(() => {
                isTransitioning = false;
            }, 800); // Match the transition duration
        }
    </script>
</body>
</html>