MediaWiki:Test.js: различия между версиями

Версия от 20:25, 16 апреля 2025

$(function () {
    var players = document.getElementsByClassName('audio-player');
    for (var i = 0; i < players.length; i++) {
        (function (container) {
            var src = container.getAttribute('data-src');
            if (!src) return;

            var audio = document.createElement('audio');
            audio.src = src;
            audio.setAttribute('preload', 'auto');

            var wrapper = document.createElement('div');
            wrapper.className = 'custom-audio-wrapper';

            var playBtn = document.createElement('button');
            playBtn.className = 'custom-audio-play';
            playBtn.innerHTML = '▶';

            var progress = document.createElement('input');
            progress.setAttribute('type', 'range');
            progress.className = 'custom-audio-progress';
            progress.setAttribute('min', 0);
            progress.value = 0;
            progress.step = 0.01;

            var time = document.createElement('span');
            time.className = 'custom-audio-time';
            time.innerHTML = '0:00';

            // Громкость
            var volumeControl = document.createElement('input');
            volumeControl.setAttribute('type', 'range');
            volumeControl.setAttribute('min', 0);
            volumeControl.setAttribute('max', 1);
            volumeControl.setAttribute('step', 0.01);
            volumeControl.setAttribute('value', 1);
            volumeControl.className = 'custom-audio-volume';

            // Визуализация
            var visualizer = document.createElement('canvas');
            visualizer.className = 'custom-audio-visualizer';
            wrapper.appendChild(visualizer);

            wrapper.appendChild(playBtn);
            wrapper.appendChild(progress);
            wrapper.appendChild(time);
            wrapper.appendChild(volumeControl);

            container.appendChild(wrapper);

            // Инициализация Web Audio API
            var audioContext = new (window.AudioContext || window.webkitAudioContext)();
            var analyser = audioContext.createAnalyser();
            var source = audioContext.createMediaElementSource(audio);
            source.connect(analyser);
            analyser.connect(audioContext.destination);

            // Настройки анализатора
            analyser.fftSize = 256;
            var bufferLength = analyser.frequencyBinCount;
            var dataArray = new Uint8Array(bufferLength);

            function draw() {
                requestAnimationFrame(draw);

                analyser.getByteFrequencyData(dataArray);

                var canvas = visualizer;
                var canvasContext = canvas.getContext('2d');
                canvasContext.clearRect(0, 0, canvas.width, canvas.height);

                var barWidth = (canvas.width / bufferLength) * 2.5;
                var barHeight;
                var x = 0;

                for (var i = 0; i < bufferLength; i++) {
                    barHeight = dataArray[i];

                    canvasContext.fillStyle = 'rgb(' + (barHeight + 100) + ',50,50)';
                    canvasContext.fillRect(x, canvas.height - barHeight / 2, barWidth, barHeight / 2);

                    x += barWidth + 1;
                }
            }

            playBtn.onclick = function () {
                if (audio.paused) {
                    audio.play();
                    playBtn.innerHTML = '⏸';
                } else {
                    audio.pause();
                    playBtn.innerHTML = '▶';
                }
            };

            volumeControl.oninput = function () {
                audio.volume = volumeControl.value;
            };

            audio.addEventListener('loadedmetadata', function () {
                progress.max = audio.duration;
            });

            audio.addEventListener('timeupdate', function () {
                progress.value = audio.currentTime;
                time.innerHTML = formatTime(audio.currentTime);
            });

            progress.addEventListener('input', function () {
                audio.currentTime = parseFloat(progress.value);
            });

            function formatTime(seconds) {
                var mins = Math.floor(seconds / 60);
                var secs = Math.floor(seconds % 60);
                if (secs < 10) secs = '0' + secs;
                return mins + ':' + secs;
            }

            // Обработка ошибок аудио
            audio.addEventListener('play', function () {
                if (audioContext.state === 'suspended') {
                    audioContext.resume().then(function () {
                        draw();
                    });
                } else {
                    draw();
                }
            });

        })(players[i]);
    }
});