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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
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commit
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44
testing/web-platform/tests/webaudio/js/buffer-loader.js
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testing/web-platform/tests/webaudio/js/buffer-loader.js
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/* Taken from
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https://raw.github.com/WebKit/webkit/master/LayoutTests/webaudio/resources/buffer-loader.js */
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function BufferLoader(context, urlList, callback) {
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this.context = context;
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this.urlList = urlList;
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this.onload = callback;
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this.bufferList = new Array();
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this.loadCount = 0;
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}
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BufferLoader.prototype.loadBuffer = function(url, index) {
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// Load buffer asynchronously
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var request = new XMLHttpRequest();
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request.open("GET", url, true);
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request.responseType = "arraybuffer";
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var loader = this;
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request.onload = function() {
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loader.context.decodeAudioData(request.response, decodeSuccessCallback, decodeErrorCallback);
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};
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request.onerror = function() {
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alert('BufferLoader: XHR error');
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};
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var decodeSuccessCallback = function(buffer) {
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loader.bufferList[index] = buffer;
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if (++loader.loadCount == loader.urlList.length)
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loader.onload(loader.bufferList);
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};
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var decodeErrorCallback = function() {
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alert('decodeErrorCallback: decode error');
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};
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request.send();
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}
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BufferLoader.prototype.load = function() {
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for (var i = 0; i < this.urlList.length; ++i)
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this.loadBuffer(this.urlList[i], i);
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}
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