66 lines
3.5 KiB
HTML
66 lines
3.5 KiB
HTML
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>OpenChamber animation cost fixture</title>
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<style>
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body { margin: 0; background: #111; color: #eee; font: 12px ui-monospace, monospace; }
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.grid { display: flex; flex-wrap: wrap; gap: 8px; padding: 8px; }
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.cell { width: 24px; height: 24px; }
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svg { width: 24px; height: 24px; display: block; }
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.wrap { display: block; width: 24px; height: 24px; }
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/*
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One variant per animated property, so a run answers "what does animating
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this cost" rather than "is this particular component slow". Compositor-
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driven properties should cost a small constant; anything the compositor
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cannot handle recalculates style every frame.
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*/
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@keyframes oc-transform-rotate { to { transform: rotate(360deg); } }
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@keyframes oc-rotate-property { to { rotate: 360deg; } }
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@keyframes oc-opacity { 0%, 100% { opacity: 0.2; } 50% { opacity: 1; } }
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@keyframes oc-translate { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
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@keyframes oc-scale { 0%, 100% { transform: scale(0.7); } 50% { transform: scale(1); } }
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@keyframes oc-background-position { to { background-position: 200% 0; } }
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@keyframes oc-border-color { 0%, 100% { border-color: #345; } 50% { border-color: #8ab; } }
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@keyframes oc-box-shadow { 0%, 100% { box-shadow: 0 0 0 0 #8ab; } 50% { box-shadow: 0 0 8px 2px #8ab; } }
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@keyframes oc-filter { 0%, 100% { filter: brightness(0.6); } 50% { filter: brightness(1.4); } }
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@keyframes oc-width { 0%, 100% { width: 12px; } 50% { width: 24px; } }
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.v-none svg { animation: none; }
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.v-transform-rotate svg { animation: oc-transform-rotate 1s linear infinite; }
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.v-transform-rotate-willchange svg { animation: oc-transform-rotate 1s linear infinite; will-change: transform; }
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.v-transform-rotate-steps svg { animation: oc-transform-rotate 1s steps(12) infinite; }
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.v-transform-rotate-wrapper .wrap { animation: oc-transform-rotate 1s linear infinite; }
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.v-rotate-property svg { animation: oc-rotate-property 1s linear infinite; }
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.v-opacity svg { animation: oc-opacity 1.2s ease-in-out infinite; }
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.v-translate svg { animation: oc-translate 1.2s ease-in-out infinite; }
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.v-scale svg { animation: oc-scale 1.2s ease-in-out infinite; }
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.v-background-position .cell { background: linear-gradient(90deg, #223, #8ab, #223); background-size: 200% 100%; animation: oc-background-position 1.5s linear infinite; }
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.v-border-color .cell { border: 2px solid #345; animation: oc-border-color 1.5s linear infinite; }
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.v-box-shadow .cell { animation: oc-box-shadow 1.5s linear infinite; }
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.v-filter svg { animation: oc-filter 1.5s linear infinite; }
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.v-width svg { animation: oc-width 1.5s linear infinite; }
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</style>
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</head>
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<body>
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<div class="grid" id="grid"></div>
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<script>
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const SPINNER = '<svg viewBox="0 0 24 24" fill="none" stroke="#8ab" stroke-width="2">'
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+ '<circle cx="12" cy="12" r="9" stroke-opacity=".25"/><path d="M21 12a9 9 0 0 0-9-9"/></svg>';
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const params = new URLSearchParams(location.search);
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const variant = params.get('variant') || 'none';
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const count = Math.max(1, Number(params.get('count') || 2));
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const grid = document.getElementById('grid');
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grid.className = 'grid v-' + variant;
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const usesWrapper = variant.endsWith('-wrapper');
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for (let index = 0; index < count; index += 1) {
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const cell = document.createElement('div');
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cell.className = 'cell';
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cell.innerHTML = usesWrapper ? '<span class="wrap">' + SPINNER + '</span>' : SPINNER;
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grid.appendChild(cell);
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}
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</script>
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</body>
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</html>
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