needsmoreboxshadow.github.io/boxShadowCreator.html at master · needsmoreboxshadow/needsmoreboxshadow.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
          integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" href="boxShadowCreator.css">
    <title>Title</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.1/ace.js" type="text/javascript"
            charset="utf-8"></script>
</head>
<body class="container-fluid">
<h1 class="mb-3">Why not add some boxshadows to your website?</h1>
<div class="card-deck">
    <div class="card  text-white bg-dark p-3">
        <h2 class="card-title">Colors</h2>
        <div id="editorColors" class="card-body editor">(index)=>[ "#f00 ",
            "#ff7f00",
            "#ff0",
            "#0f0",
            "#96bf33",
            "#00f",
            "#4b0082"][index%7];
        </div>
    </div>
    <div class="card text-white bg-dark p-3">
        <h2 class="card-title">Offset</h2>
        <div id="editorOffset" class="card-body">(index)=>({
            horizontal:index*4,
            vertical:index*4,
            distance:2
            })
        </div>
    </div>
    <div class="card text-white bg-dark p-3">
        <h2 class="card-title">Nr. of shadows</h2>
        <div class="card-body ">
            <label for="nrInput">Shadows</label><input onchange="updateStuff()" id="nrInput" class="m-3" size="3"
                                                       type="number" step="1"
                                                       value="3">
            <label for="animationSelect">Animation type</label>
            <select id="animationSelect" onchange="updateStuff()" title="Animation type">
            </select>
        </div>
        <input class="btn btn-danger" id="animateCheck" type="button" value="No Animations"
               onclick="this.val=!this.val;this.className=this.val?'btn btn-success':'btn btn-danger';this.value=this.val?'Animating':'No Animations';updateStuff();">
    </div>
    <div class="card text-white bg-dark p-3">
        <h2 class="card-title">Booklet code:</h2>
        <div id="codeOutput" class="card-body ">
        </div>
    </div>
</div>
<div class="card text-white bg-dark p-3 m-3 iframecard">
    <h2 class="card-title">Demo</h2>
    <div class="card-body">
        <div class="row">
            <input class="btn btn-primary m-1" type="button" value="reload"
                   onclick="document.getElementById('iframe').src+=''">
            <input class="btn btn-primary m-1" type="button" value="apply"
                   onclick="updateStuff()">
        </div>
        <iframe id="iframe" class="container-fluid p-3" src="lameDemoPage.html"></iframe>
    </div>
</div>
<style id="styleItem"></style>
<script>
    function setupEditor(id) {

        const editor = ace.edit(id);
        editor.session.setMode("ace/mode/javascript");
        editor.setTheme("ace/theme/monokai");
        editor.on('blur', () => {
            updateStuff()
        });
        return editor;
    }

    function setupCssEditor(id) {
        const editor = ace.edit(id);
        editor.session.setMode("ace/mode/javascript");
        editor.setTheme("ace/theme/monokai");
        return editor;
    }


    function updateStuff() {
        const codes = generateCodes(offsetEditor.getValue(), colorEditor.getValue(), nrInput.value);
        document.getElementById('styleItem').innerHTML = codes.keyframeCode;
        createCode(codes, animationSelect.value + " 1s infinite gradientAnimation");
    }


    function createCode(codes, animation) {
        let code = (codes.keyframeCode !== null && codes.keyframeCode.length > 0) ?
            `const insertedCssElement = document.createElement('style');
            document.body.appendChild(insertedCssElement);
            insertedCssElement.innerHTML =" ${codes.keyframeCode}";
             [].slice.apply(document.all).filter(el=>el.tagName=='H1').forEach(el=>{
             el.style.boxShadow="${codes.boxshadowCode}";
             el.style.animation="${animation}";
             });` :
            ` [].slice.apply(document.all).filter(el=>el.tagName=='H1').forEach(el=>el.style.boxShadow="${codes.boxshadowCode}");`;
        codeOutput.setValue(code);
        iframe.contentWindow.postMessage(code, '*');

    }

    function createBoxShadowGradient(iterations, offset, colorFunction, offsetFunction) {
        let str = "";
        let offsetValue = null;
        let colorValue = null;
        for (let i = 0; i < iterations; i++) {
            offsetValue = offsetFunction(i);
            colorValue = colorFunction((i + offset) % iterations);
            console.log(offsetValue);
            if (!offsetValue || !colorValue) {
                console.log("skipped:" + offsetValue + colorValue);
                continue;
            }
            str += `${colorValue}  ${offsetValue.horizontal}px ${offsetValue.vertical}px ${offsetValue.distance}px ,`;
        }
        if (str.endsWith(",")) {
            str = str.substr(0, str.length - 1);
        }
        return str;
    }

    function generateCodes(offsetStr, colorStr, iterations) {
        const colorFunction = new Function("index", "return " + colorStr)();
        const offsetFunction = new Function("index", "return " + offsetStr)();
        let initialValue = createBoxShadowGradient(iterations, 0, colorFunction, offsetFunction);
        let keyframeStr = "";
        if (toggle.val) {
            keyframeStr = "@keyframes gradientAnimation{";
            for (let i = 0; i < iterations; i++) {
                keyframeStr += `${100 * i / iterations }% { box-shadow:${createBoxShadowGradient(iterations, i, colorFunction, offsetFunction) }}`;
            }
            keyframeStr += "}";
        }
        return {
            boxshadowCode: initialValue,
            keyframeCode: keyframeStr
        };
    }


    const animationTypes = ["linear", "alternate", "sine"];
    const animationSelect = document.getElementById("animationSelect");
    animationTypes.forEach(type => {
        const option = document.createElement("option");
        option.innerHTML = option.value = type;
        animationSelect.appendChild(option);
    });
    const toggle = document.getElementById("animateCheck");
    const nrInput = document.getElementById("nrInput");
    const colorEditor = setupEditor("editorColors");
    const offsetEditor = setupEditor("editorOffset");
    const codeOutput = setupCssEditor("codeOutput");
    const iframe = document.getElementById("iframe");
    const editors = {
        "editorColors": colorEditor,
        "editorOffset": offsetEditor,
        "codeOutput": codeOutput
    };

</script>
</body>
</html>