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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="utf-8"> |
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<meta http-equiv="x-ua-compatible" content="ie=edge"> |
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<meta name="viewport" content="width=device-width, initial-scale=1"> |
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<link rel="icon" href="favicon.ico" type="image/x-icon"/> |
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<link rel="stylesheet" href="examples-styles.css"/> |
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<title>abcjs: Synth Player Demo</title> |
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<link rel="stylesheet" type="text/css" href="../abcjs-audio.css"> |
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<style> |
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.highlight { |
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fill: #0a9ecc; |
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} |
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.abcjs-cursor { |
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stroke: red; |
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} |
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</style> |
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<script src="../dist/abcjs-basic.js" type="text/javascript"></script> |
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<script type="text/javascript"> |
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var abc = |
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"T: Cooley's\n" + |
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"M: 4/4\n" + |
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"Q: 1/4=120\n" + |
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"L: 1/8\n" + |
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"R: reel\n" + |
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"K: Emin\n" + |
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"|:{E}D2|EB{c}BA B2 EB|~B2 AB dBAG|FDAD BDAD|FDAD dAFD|\n" + |
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"EBBA B2 EB|B2 AB defg|afe^c dBAF|DEFD E2:|\n" + |
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"|:gf|eB B2 efge|eB B2 gedB|A2 FA DAFA|A2 FA defg|\n" + |
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"eB B2 eBgB|eB B2 defg|afe^c dBAF|DEFD E2:|" |
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var abcOptions = { |
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add_classes: true, |
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responsive: "resize" |
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}; |
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function CursorControl() { |
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var self = this; |
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self.onReady = function() { |
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}; |
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self.onStart = function() { |
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var svg = document.querySelector("#paper svg"); |
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var cursor = document.createElementNS("http://www.w3.org/2000/svg", "line"); |
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cursor.setAttribute("class", "abcjs-cursor"); |
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cursor.setAttributeNS(null, 'x1', 0); |
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cursor.setAttributeNS(null, 'y1', 0); |
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cursor.setAttributeNS(null, 'x2', 0); |
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cursor.setAttributeNS(null, 'y2', 0); |
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svg.appendChild(cursor); |
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}; |
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self.beatSubdivisions = 2; |
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self.onBeat = function(beatNumber, totalBeats, totalTime) { |
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}; |
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self.onEvent = function(ev) { |
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if (ev.measureStart && ev.left === null) |
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return; |
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var lastSelection = document.querySelectorAll("#paper svg .highlight"); |
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for (var k = 0; k < lastSelection.length; k++) |
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lastSelection[k].classList.remove("highlight"); |
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for (var i = 0; i < ev.elements.length; i++ ) { |
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var note = ev.elements[i]; |
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for (var j = 0; j < note.length; j++) { |
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note[j].classList.add("highlight"); |
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} |
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} |
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var cursor = document.querySelector("#paper svg .abcjs-cursor"); |
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if (cursor) { |
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cursor.setAttribute("x1", ev.left - 2); |
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cursor.setAttribute("x2", ev.left - 2); |
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cursor.setAttribute("y1", ev.top); |
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cursor.setAttribute("y2", ev.top + ev.height); |
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} |
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}; |
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self.onFinished = function() { |
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var els = document.querySelectorAll("svg .highlight"); |
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for (var i = 0; i < els.length; i++ ) { |
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els[i].classList.remove("highlight"); |
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} |
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var cursor = document.querySelector("#paper svg .abcjs-cursor"); |
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if (cursor) { |
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cursor.setAttribute("x1", 0); |
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cursor.setAttribute("x2", 0); |
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cursor.setAttribute("y1", 0); |
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cursor.setAttribute("y2", 0); |
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} |
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}; |
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} |
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var cursorControl = new CursorControl(); |
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var synthControl; |
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function load() { |
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if (ABCJS.synth.supportsAudio()) { |
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synthControl = new ABCJS.synth.SynthController(); |
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synthControl.load("#audio", cursorControl, {displayLoop: true, displayRestart: true, displayPlay: true, displayProgress: true, displayWarp: true}); |
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} else { |
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document.querySelector("#audio").innerHTML = "<div class='audio-error'>Audio is not supported in this browser.</div>"; |
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} |
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setTune(false); |
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} |
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function setTune(userAction) { |
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synthControl.disable(true); |
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var visualObj = ABCJS.renderAbc("paper", abc, abcOptions)[0]; |
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var midiBuffer = new ABCJS.synth.CreateSynth(); |
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midiBuffer.init({ |
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visualObj: visualObj, |
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}).then(function (response) { |
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console.log(response); |
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if (synthControl) { |
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synthControl.setTune(visualObj, userAction).then(function (response) { |
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console.log("Audio successfully loaded.") |
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}).catch(function (error) { |
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console.warn("Audio problem:", error); |
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}); |
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} |
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}).catch(function (error) { |
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console.warn("Audio problem:", error); |
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}); |
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} |
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</script> |
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</head> |
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<body onload="load()"> |
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<header> |
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<img src="https://paulrosen.github.io/abcjs/img/abcjs_comp_extended_08.svg" alt="abcjs logo"> |
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<h1>Synth Player</h1> |
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</header> |
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<div class="container"> |
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<main> |
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<p>Demo of using the built in synth player control.</p> |
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<div id="paper"></div> |
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<div id="audio"></div> |
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</main> |
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</div> |
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</body> |
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</html> |
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