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91 lines
2.7 KiB
JavaScript
91 lines
2.7 KiB
JavaScript
// asciinema embedded player
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(function() {
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function insertAfter(referenceNode, newNode) {
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referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
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}
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function params(container, script) {
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function format(name) {
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var value = script.getAttribute('data-' + name);
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if (value) {
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return name + '=' + value;
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}
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}
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var options = ['size', 'speed', 'autoplay', 'loop', 'theme', 't', 'preload', 'cols', 'rows'];
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return '?' + options.map(format).filter(Boolean).join('&');
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}
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function locationFromString(string) {
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var parser = document.createElement('a');
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parser.href = string;
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return parser;
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}
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function apiHostFromScript(script) {
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var location = locationFromString(script.src);
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return location.protocol + '//' + location.host;
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}
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function insertPlayer(script) {
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// do not insert player if there's one already associated with this script
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if (script.dataset.player) {
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return;
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}
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var apiHost = apiHostFromScript(script);
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var asciicastId = script.id.split('-')[1];
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var container = document.createElement('div');
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container.id = "asciicast-container-" + asciicastId;
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container.className = 'asciicast';
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container.style.display = 'block';
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container.style.float = 'none';
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container.style.overflow = 'hidden';
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container.style.padding = 0;
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container.style.margin = '20px 0';
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insertAfter(script, container);
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var iframe = document.createElement('iframe');
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iframe.src = apiHost + "/a/" + asciicastId + '/embed' + params(container, script);
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iframe.id = "asciicast-iframe-" + asciicastId;
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iframe.name = "asciicast-iframe-" + asciicastId;
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iframe.scrolling = "no";
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iframe.setAttribute('allowFullScreen', 'true');
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iframe.style.overflow = "hidden";
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iframe.style.margin = 0;
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iframe.style.border = 0;
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iframe.style.display = "inline-block";
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iframe.style.width = "100%";
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iframe.style.float = "none";
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iframe.style.visibility = "hidden";
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iframe.onload = function() { this.style.visibility = 'visible' };
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container.appendChild(iframe);
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function receiveSize(e) {
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if (e.origin === apiHost) {
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var name = e.data[0];
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var data = e.data[1];
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var iframeWindow = iframe.contentWindow || iframe;
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if (e.source == iframeWindow && name == 'asciicast:size') {
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iframe.style.width = '' + data.width + 'px';
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iframe.style.height = '' + data.height + 'px';
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}
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}
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}
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window.addEventListener("message", receiveSize, false);
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script.dataset.player = container;
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}
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var scripts = document.querySelectorAll("script[id^='asciicast-']");
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[].forEach.call(scripts, insertPlayer);
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})();
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