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68 lines
2.0 KiB
68 lines
2.0 KiB
2 years ago
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<script>
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import rando from 'randomcolor';
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import { visibility } from "$/client/helpers.js";
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export let width = 800;
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export let height = 450;
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// if you don't set any colors then it will use randomColor with these options
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export let random_options = {hue: "monochrome", "format": "rgbArray", "luminosity": "random", count: 10};
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// default colors are simple grays taken from a still image
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export let colors = rando(random_options);
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export let src = "";
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export let lazy = false;
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let show_image = false;
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let img_id = `image-${Math.floor(Math.random() * 1000000)}`;
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let in_view = false;
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const visible = () => in_view = true;
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const image_loaded = () => show_image = true;
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</script>
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<style>
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img {
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z-index: -1;
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opacity: 0.5;
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}
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img.visible {
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opacity: 1;
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transition: opacity 0.5s;
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}
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svg {
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z-index: 1;
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opacity: 1;
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}
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svg.hidden {
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opacity: 0.5;
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transition: opacity 0.5s;
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z-index: -1;
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}
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</style>
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<cover class="stacked" use:visibility on:visible={ visible }>
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<svg class="layer" class:hidden={ show_image && in_view } xmlns="http://www.w3.org/2000/svg" version="1.1" viewbox="0 0 {width} {height}">
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<filter id="blur" filterUnits="userSpaceOnUse" color-interpolation-filters="sRGB">
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<feGaussianBlur stdDeviation="40 40" edgeMode="duplicate" />
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<feComponentTransfer>
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<feFuncA type="discrete" tableValues="1 1" />
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</feComponentTransfer>
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</filter>
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<g filter="url(#blur)">
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{#each colors as row,i}
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{#each colors as color,j}
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<rect x="{ i * width / colors.length }" y="{ j * height / colors.length}" width="{ width / colors.length}" height="{ height / colors.length}" stroke="none" fill="rgb({ colors[Math.floor(Math.random() * colors.length)] })" fill-opacity="1" stroke-opacity="0.8" />
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{/each}
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{/each}
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</g>
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</svg>
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{#if in_view}
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<img class="layer" class:visible={ show_image } src={src} id={ img_id } loading={ lazy ? 'lazy' : 'eager'} on:load={ image_loaded }>
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{/if}
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</cover>
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