robmc.github.io/image fade.html at master · robmc/robmc.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
	<style type="text/css">
		body, html {
		    margin: 0;
		    height: 100%;
		    font-family: sans-serif;
		}

		#image-wrapper {
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 100%;
            z-index: 1; /* Lower than the UI */
        }

		#image-wrapper img {
            position: absolute;
            z-index: 1;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

		#image-wrapper img.active{
			z-index:3;
		}

		/* Positioning the Pause Button at the top */
        .pause-container {
            position: fixed;
            top: 20px;
            left: 20px;
            z-index: 2000; /* Ensure it is above everything */
            background: white;
            opacity: 0.8;
            padding: 10px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

		.center {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            border-radius: 25px;
            border: 2px solid #DEDEDE;
            height: 320px;
            width: 500px;
            padding: 20px;
            box-sizing: border-box;
            overflow: hidden;
            z-index: 1000;
            background-color: white;
            text-align: center;
		}

		h1 {
			text-align: center;
		}

		/* Switch Styling */
        .switch {
            position: relative;
            display: inline-block;
            width: 60px;
            height: 34px;
        }

        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

		.slider {
		    border-radius: 34px;
		    position: absolute;
		    cursor: pointer;
		    top: 0; left: 0; right: 0; bottom: 0;
		    /* Contrast Enhancement: Darkened the gray from #ccc to #595959 */
		    background-color: #595959;
		    transition: .4s;
		    border: 1px solid #000; /* Added border for shape definition */
		}

		.slider:before {
		    border-radius: 50%;
		    position: absolute;
		    content: "";
		    height: 26px;
		    width: 26px;
		    left: 4px;
		    bottom: 3px;
		    background-color: white;
		    transition: .4s;
		    box-shadow: 0 2px 4px rgba(0,0,0,0.4);
		}

        input:checked + .slider {
            background-color: #0056b3;
        }

        input:checked + .slider:before {
            transform: translateX(26px);
        }

		/* --- KEYBOARD FOCUS INDICATION --- */
		/* This adds a thick blue ring around the slider when tabbing */
		input:focus-visible + .slider {
		    outline: 3px solid #FFD700; /* Gold outline for high visibility */
		    outline-offset: 3px;
		    box-shadow: 0 0 0 6px rgba(0, 0, 0, 0.2);
		}
	</style>
</head>
<body>
	<div class="pause-container">
        <label for="pause-input">Pause Animation</label>
        <label class="switch">
            <input type="checkbox" id="pause-input">
            <span class="slider"></span>
        </label>
    </div>
	<div id="image-wrapper">
		<img class="active" src="https://raw.githubusercontent.com/robmc/robmc.github.io/refs/heads/master/images/dusk.jpg" alt="" />
		<img src="https://raw.githubusercontent.com/robmc/robmc.github.io/refs/heads/master/images/night.jpg" alt="" />
	</div>
	<div class="center">
		<h1>Pause/Stop/Hide</h1>
		<p>Testing the ability to pause/stop animations. The background image has an update animation every 7 seconds. This is testing to meet <a href="https://www.w3.org/WAI/WCAG21/Understanding/pause-stop-hide.html">WCAG Success Criteria 2.2.2 Pause, Stop, Hide</a>.</p>
		<footer>
			<a href="http://robertjmccaffery.com/examples.html">Back to Examples</a> | <a href="http://robertjmccaffery.com/">Home</a>
		</footer>
	</div>
	<script src="https://code.jquery.com/jquery-4.0.0.js" integrity="sha256-9fsHeVnKBvqh3FB2HYu7g2xseAZ5MlN6Kz/qnkASV8U=" crossorigin="anonymous"></script>
	<script>
		$(document).ready(function() {
		    let imageTimer;

		    function cycleImages() {
		        // If the pause input is checked, do nothing and don't schedule the next run
		        if ($('#pause-input').is(':checked')) {
		            return;
		        }

		        var $active = $('#image-wrapper .active');
		        var $next = ($active.next().length > 0) ? $active.next() : $('#image-wrapper img:first');

		        $next.css('z-index', 2);
		        $active.fadeOut(1500, function() {
		            $active.css('z-index', 1).show().removeClass('active');
		            $next.css('z-index', 3).addClass('active');
		        });
		    }

		    // Function to start the interval
		    function startAnimation() {
		        if (!imageTimer) {
		            imageTimer = setInterval(cycleImages, 7000);
		        }
		    }

		    // Function to stop the interval
		    function stopAnimation() {
		        clearInterval(imageTimer);
		        imageTimer = null;
		    }

		    // Listen for toggle changes
		    $('#pause-input').on('change', function() {
		        if ($(this).is(':checked')) {
		            stopAnimation();
		        } else {
		            startAnimation();
		        }
		    });

		    // On by default: start the animation immediately
		    startAnimation();
		});
	</script>
</body>
</html>