SimplePoll/index.html at main · LittleGraper/SimplePoll · 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>Simple Poll</title>
    <style>
        * {
            margin: 0px;
            padding: 0px;
            box-sizing: border-box;
        }

        body {
            font-family: "Raleway", sans-serif;
            background: #f0f5ff;
        }

        .poll {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 400px;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0px 0px 20px 5px rgba(35, 30, 128, 0.05);
        }

        .poll .question {
            padding: 20px;
            color: #111;
            font-size: 18px;
            border-bottom: 1px solid #eee;
        }

        .poll .answers {
            padding: 20px 20px 10px;
        }

        .poll .answers .answer {
            position: relative;
            width: 100%;
            height: 40px;
            padding: 0px 10px;
            line-height: 40px;
            color: #111;
            margin-bottom: 10px;
            border: 1px solid #d4d4d4;
            border-radius: 10px;
            cursor: pointer;
            overflow: hidden;
        }

        .poll .answers .answer.selected {
            border: 2px solid #8f9fe8;
        }

        .poll .answers .answer span.percentage-value {
            position: absolute;
            top: 50%;
            right: 0px;
            width: 40px;
            transform: translateY(-50%);
            color: #111;
            font-size: 15px;
        }

        .poll .answers .answer span.percentage-bar {
            position: absolute;
            top: 0px;
            left: 0px;
            width: 50%;
            height: 100%;
            background: #ccd8f1;
            z-index: -1;
            transition: width 300ms ease-in-out;
        }
    </style>
</head>
<body>

<div class="poll">
    <div class="question"></div>
    <div class="answers"></div>
</div>

<script>
    let poll = {
        question: "How are you?",
        answers: ["Good", "Bad", "Very good", "Sad"],
        pollCount: 9,
        answersWeight: [2, 0, 0, 0],
        selectedAnswer: -1
    };

    let pollDOM = {
        question: document.querySelector(".poll .question"),
        answers: document.querySelector(".poll .answers")
    };

    pollDOM.question.innerText = poll.question;
    pollDOM.answers.innerHTML = poll.answers.map(function(answer, i){
        return `
        <div class="answer" onclick="markAnswer('${i}')">
            ${answer}
            <span class="percentage-bar"></span>
            <span class="percentage-value"></span>
        </div>
        `;
    }).join("");

    function markAnswer(i){
        poll.selectedAnswer = +i;
        try {
            document.querySelector(".poll .answers .answer.selected").classList.remove("selected");
        } catch(msg){}
        document.querySelectorAll(".poll .answers .answer")[+i].classList.add("selected");
        showResults();
    }

    function showResults(){
        let answers = document.querySelectorAll(".poll .answers .answer");
        for(let i = 0; i < answers.length; i++){
            let percentage = 0;
            if(i == poll.selectedAnswer){
                percentage = Math.round(
                    (poll.answersWeight[i] + 1) * 100 / (poll.pollCount + 1)
                );
            } else {
                percentage = Math.round(
                    (poll.answersWeight[i]) * 100 / (poll.pollCount + 1)
                );
            }

            answers[i].querySelector(".percentage-bar").style.width = percentage + "%";
            answers[i].querySelector(".percentage-value").innerText = percentage + "%";
        }
    }
</script>

</body>
</html>