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Viewing changes to facedetection/www/bower_components/prism/plugins/file-highlight/prism-file-highlight.js

  • Committer: Didier Roche
  • Date: 2016-05-10 23:09:11 UTC
  • Revision ID: didier.roche@canonical.com-20160510230911-c7xr490zrj3yrzxd
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facedetection/www/bower_components/prism/plugins/file-highlight/prism-file-highlight.js
 
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(function () {
 
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        if (typeof self === 'undefined' || !self.Prism || !self.document || !document.querySelector) {
 
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                return;
 
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        }
 
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        self.Prism.fileHighlight = function() {
 
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                var Extensions = {
 
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                        'js': 'javascript',
 
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                        'html': 'markup',
 
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                        'svg': 'markup',
 
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                        'xml': 'markup',
 
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                        'py': 'python',
 
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                        'rb': 'ruby',
 
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                        'ps1': 'powershell',
 
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                        'psm1': 'powershell'
 
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                };
 
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                if(Array.prototype.forEach) { // Check to prevent error in IE8
 
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                        Array.prototype.slice.call(document.querySelectorAll('pre[data-src]')).forEach(function (pre) {
 
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                                var src = pre.getAttribute('data-src');
 
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                                var language, parent = pre;
 
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                                var lang = /\blang(?:uage)?-(?!\*)(\w+)\b/i;
 
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                                while (parent && !lang.test(parent.className)) {
 
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                                        parent = parent.parentNode;
 
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                                }
 
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                                if (parent) {
 
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                                        language = (pre.className.match(lang) || [, ''])[1];
 
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                                }
 
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                                if (!language) {
 
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                                        var extension = (src.match(/\.(\w+)$/) || [, ''])[1];
 
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                                        language = Extensions[extension] || extension;
 
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                                }
 
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                                var code = document.createElement('code');
 
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                                code.className = 'language-' + language;
 
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                                pre.textContent = '';
 
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                                code.textContent = 'Loading…';
 
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                                pre.appendChild(code);
 
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                                var xhr = new XMLHttpRequest();
 
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                                xhr.open('GET', src, true);
 
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                                xhr.onreadystatechange = function () {
 
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                                        if (xhr.readyState == 4) {
 
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                                                if (xhr.status < 400 && xhr.responseText) {
 
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                                                        code.textContent = xhr.responseText;
 
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                                                        Prism.highlightElement(code);
 
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                                                }
 
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                                                else if (xhr.status >= 400) {
 
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                                                        code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText;
 
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                                                }
 
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                                                else {
 
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                                                        code.textContent = '✖ Error: File does not exist or is empty';
 
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                                                }
 
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                                        }
 
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                                };
 
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                                xhr.send(null);
 
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                        });
 
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                }
 
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        };
 
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        document.addEventListener('DOMContentLoaded', self.Prism.fileHighlight);
 
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})();