| 1 | (function () {
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| 2 |
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| 3 | if (typeof Prism === 'undefined' || typeof document === 'undefined') {
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| 4 | return;
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| 5 | }
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| 6 |
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| 7 | /**
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| 8 | * @callback Adapter
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| 9 | * @param {any} response
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| 10 | * @param {HTMLPreElement} [pre]
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| 11 | * @returns {string | null}
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| 12 | */
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| 13 |
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| 14 | /**
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| 15 | * The list of adapter which will be used if `data-adapter` is not specified.
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| 16 | *
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| 17 | * @type {Array<{adapter: Adapter, name: string}>}
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| 18 | */
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| 19 | var adapters = [];
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| 20 |
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| 21 | /**
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| 22 | * Adds a new function to the list of adapters.
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| 23 | *
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| 24 | * If the given adapter is already registered or not a function or there is an adapter with the given name already,
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| 25 | * nothing will happen.
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| 26 | *
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| 27 | * @param {Adapter} adapter The adapter to be registered.
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| 28 | * @param {string} [name] The name of the adapter. Defaults to the function name of `adapter`.
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| 29 | */
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| 30 | function registerAdapter(adapter, name) {
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| 31 | name = name || adapter.name;
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| 32 | if (typeof adapter === 'function' && !getAdapter(adapter) && !getAdapter(name)) {
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| 33 | adapters.push({ adapter: adapter, name: name });
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| 34 | }
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| 35 | }
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| 36 | /**
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| 37 | * Returns the given adapter itself, if registered, or a registered adapter with the given name.
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| 38 | *
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| 39 | * If no fitting adapter is registered, `null` will be returned.
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| 40 | *
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| 41 | * @param {string|Function} adapter The adapter itself or the name of an adapter.
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| 42 | * @returns {Adapter} A registered adapter or `null`.
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| 43 | */
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| 44 | function getAdapter(adapter) {
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| 45 | if (typeof adapter === 'function') {
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| 46 | for (var i = 0, item; (item = adapters[i++]);) {
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| 47 | if (item.adapter.valueOf() === adapter.valueOf()) {
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| 48 | return item.adapter;
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| 49 | }
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| 50 | }
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| 51 | } else if (typeof adapter === 'string') {
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| 52 | // eslint-disable-next-line no-redeclare
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| 53 | for (var i = 0, item; (item = adapters[i++]);) {
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| 54 | if (item.name === adapter) {
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| 55 | return item.adapter;
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| 56 | }
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| 57 | }
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| 58 | }
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| 59 | return null;
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| 60 | }
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| 61 | /**
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| 62 | * Remove the given adapter or the first registered adapter with the given name from the list of
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| 63 | * registered adapters.
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| 64 | *
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| 65 | * @param {string|Function} adapter The adapter itself or the name of an adapter.
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| 66 | */
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| 67 | function removeAdapter(adapter) {
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| 68 | if (typeof adapter === 'string') {
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| 69 | adapter = getAdapter(adapter);
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| 70 | }
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| 71 | if (typeof adapter === 'function') {
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| 72 | var index = adapters.findIndex(function (item) {
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| 73 | return item.adapter === adapter;
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| 74 | });
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| 75 | if (index >= 0) {
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| 76 | adapters.splice(index, 1);
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| 77 | }
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| 78 | }
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| 79 | }
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| 80 |
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| 81 | registerAdapter(function github(rsp) {
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| 82 | if (rsp && rsp.meta && rsp.data) {
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| 83 | if (rsp.meta.status && rsp.meta.status >= 400) {
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| 84 | return 'Error: ' + (rsp.data.message || rsp.meta.status);
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| 85 | } else if (typeof (rsp.data.content) === 'string') {
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| 86 | return typeof (atob) === 'function'
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| 87 | ? atob(rsp.data.content.replace(/\s/g, ''))
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| 88 | : 'Your browser cannot decode base64';
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| 89 | }
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| 90 | }
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| 91 | return null;
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| 92 | }, 'github');
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| 93 | registerAdapter(function gist(rsp, el) {
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| 94 | if (rsp && rsp.meta && rsp.data && rsp.data.files) {
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| 95 | if (rsp.meta.status && rsp.meta.status >= 400) {
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| 96 | return 'Error: ' + (rsp.data.message || rsp.meta.status);
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| 97 | }
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| 98 |
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| 99 | var files = rsp.data.files;
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| 100 | var filename = el.getAttribute('data-filename');
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| 101 | if (filename == null) {
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| 102 | // Maybe in the future we can somehow render all files
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| 103 | // But the standard <script> include for gists does that nicely already,
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| 104 | // so that might be getting beyond the scope of this plugin
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| 105 | for (var key in files) {
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| 106 | if (files.hasOwnProperty(key)) {
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| 107 | filename = key;
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| 108 | break;
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| 109 | }
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| 110 | }
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| 111 | }
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| 112 |
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| 113 | if (files[filename] !== undefined) {
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| 114 | return files[filename].content;
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| 115 | }
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| 116 | return 'Error: unknown or missing gist file ' + filename;
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| 117 | }
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| 118 | return null;
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| 119 | }, 'gist');
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| 120 | registerAdapter(function bitbucket(rsp) {
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| 121 | if (rsp && rsp.node && typeof (rsp.data) === 'string') {
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| 122 | return rsp.data;
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| 123 | }
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| 124 | return null;
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| 125 | }, 'bitbucket');
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| 126 |
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| 127 |
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| 128 | var jsonpCallbackCounter = 0;
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| 129 | /**
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| 130 | * Makes a JSONP request.
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| 131 | *
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| 132 | * @param {string} src The URL of the resource to request.
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| 133 | * @param {string | undefined | null} callbackParameter The name of the callback parameter. If falsy, `"callback"`
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| 134 | * will be used.
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| 135 | * @param {(data: unknown) => void} onSuccess
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| 136 | * @param {(reason: "timeout" | "network") => void} onError
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| 137 | * @returns {void}
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| 138 | */
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| 139 | function jsonp(src, callbackParameter, onSuccess, onError) {
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| 140 | var callbackName = 'prismjsonp' + jsonpCallbackCounter++;
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| 141 |
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| 142 | var uri = document.createElement('a');
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| 143 | uri.href = src;
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| 144 | uri.href += (uri.search ? '&' : '?') + (callbackParameter || 'callback') + '=' + callbackName;
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| 145 |
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| 146 | var script = document.createElement('script');
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| 147 | script.src = uri.href;
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| 148 | script.onerror = function () {
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| 149 | cleanup();
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| 150 | onError('network');
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| 151 | };
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| 152 |
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| 153 | var timeoutId = setTimeout(function () {
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| 154 | cleanup();
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| 155 | onError('timeout');
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| 156 | }, Prism.plugins.jsonphighlight.timeout);
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| 157 |
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| 158 | function cleanup() {
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| 159 | clearTimeout(timeoutId);
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| 160 | document.head.removeChild(script);
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| 161 | delete window[callbackName];
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| 162 | }
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| 163 |
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| 164 | // the JSONP callback function
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| 165 | window[callbackName] = function (response) {
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| 166 | cleanup();
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| 167 | onSuccess(response);
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| 168 | };
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| 169 |
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| 170 | document.head.appendChild(script);
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| 171 | }
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| 172 |
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| 173 | var LOADING_MESSAGE = 'Loading…';
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| 174 | var MISSING_ADAPTER_MESSAGE = function (name) {
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| 175 | return '✖ Error: JSONP adapter function "' + name + '" doesn\'t exist';
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| 176 | };
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| 177 | var TIMEOUT_MESSAGE = function (url) {
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| 178 | return '✖ Error: Timeout loading ' + url;
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| 179 | };
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| 180 | var UNKNOWN_FAILURE_MESSAGE = '✖ Error: Cannot parse response (perhaps you need an adapter function?)';
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| 181 |
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| 182 | var STATUS_ATTR = 'data-jsonp-status';
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| 183 | var STATUS_LOADING = 'loading';
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| 184 | var STATUS_LOADED = 'loaded';
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| 185 | var STATUS_FAILED = 'failed';
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| 186 |
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| 187 | var SELECTOR = 'pre[data-jsonp]:not([' + STATUS_ATTR + '="' + STATUS_LOADED + '"])'
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| 188 | + ':not([' + STATUS_ATTR + '="' + STATUS_LOADING + '"])';
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| 189 |
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| 190 |
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| 191 | Prism.hooks.add('before-highlightall', function (env) {
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| 192 | env.selector += ', ' + SELECTOR;
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| 193 | });
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| 194 |
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| 195 | Prism.hooks.add('before-sanity-check', function (env) {
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| 196 | var pre = /** @type {HTMLPreElement} */ (env.element);
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| 197 | if (pre.matches(SELECTOR)) {
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| 198 | env.code = ''; // fast-path the whole thing and go to complete
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| 199 |
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| 200 | // mark as loading
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| 201 | pre.setAttribute(STATUS_ATTR, STATUS_LOADING);
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| 202 |
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| 203 | // add code element with loading message
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| 204 | var code = pre.appendChild(document.createElement('CODE'));
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| 205 | code.textContent = LOADING_MESSAGE;
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| 206 |
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| 207 | // set language
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| 208 | var language = env.language;
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| 209 | code.className = 'language-' + language;
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| 210 |
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| 211 | // preload the language
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| 212 | var autoloader = Prism.plugins.autoloader;
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| 213 | if (autoloader) {
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| 214 | autoloader.loadLanguages(language);
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| 215 | }
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| 216 |
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| 217 | var adapterName = pre.getAttribute('data-adapter');
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| 218 | var adapter = null;
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| 219 | if (adapterName) {
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| 220 | if (typeof window[adapterName] === 'function') {
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| 221 | adapter = window[adapterName];
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| 222 | } else {
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| 223 | // mark as failed
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| 224 | pre.setAttribute(STATUS_ATTR, STATUS_FAILED);
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| 225 |
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| 226 | code.textContent = MISSING_ADAPTER_MESSAGE(adapterName);
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| 227 | return;
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| 228 | }
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| 229 | }
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| 230 |
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| 231 | var src = pre.getAttribute('data-jsonp');
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| 232 |
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| 233 | jsonp(
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| 234 | src,
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| 235 | pre.getAttribute('data-callback'),
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| 236 | function (response) {
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| 237 | // interpret the received data using the adapter(s)
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| 238 | var data = null;
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| 239 | if (adapter) {
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| 240 | data = adapter(response, pre);
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| 241 | } else {
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| 242 | for (var i = 0, l = adapters.length; i < l; i++) {
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| 243 | data = adapters[i].adapter(response, pre);
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| 244 | if (data !== null) {
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| 245 | break;
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| 246 | }
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| 247 | }
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| 248 | }
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| 249 |
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| 250 | if (data === null) {
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| 251 | // mark as failed
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| 252 | pre.setAttribute(STATUS_ATTR, STATUS_FAILED);
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| 253 |
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| 254 | code.textContent = UNKNOWN_FAILURE_MESSAGE;
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| 255 | } else {
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| 256 | // mark as loaded
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| 257 | pre.setAttribute(STATUS_ATTR, STATUS_LOADED);
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| 258 |
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| 259 | code.textContent = data;
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| 260 | Prism.highlightElement(code);
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| 261 | }
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| 262 | },
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| 263 | function () {
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| 264 | // mark as failed
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| 265 | pre.setAttribute(STATUS_ATTR, STATUS_FAILED);
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| 266 |
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| 267 | code.textContent = TIMEOUT_MESSAGE(src);
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| 268 | }
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| 269 | );
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| 270 | }
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| 271 | });
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| 272 |
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| 273 |
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| 274 | Prism.plugins.jsonphighlight = {
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| 275 | /**
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| 276 | * The timeout after which an error message will be displayed.
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| 277 | *
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| 278 | * __Note:__ If the request succeeds after the timeout, it will still be processed and will override any
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| 279 | * displayed error messages.
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| 280 | */
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| 281 | timeout: 5000,
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| 282 | registerAdapter: registerAdapter,
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| 283 | removeAdapter: removeAdapter,
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| 284 |
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| 285 | /**
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| 286 | * Highlights all `pre` elements under the given container with a `data-jsonp` attribute by requesting the
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| 287 | * specified JSON and using the specified adapter or a registered adapter to extract the code to highlight
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| 288 | * from the response. The highlighted code will be inserted into the `pre` element.
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| 289 | *
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| 290 | * Note: Elements which are already loaded or currently loading will not be touched by this method.
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| 291 | *
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| 292 | * @param {Element | Document} [container=document]
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| 293 | */
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| 294 | highlight: function (container) {
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| 295 | var elements = (container || document).querySelectorAll(SELECTOR);
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| 296 |
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| 297 | for (var i = 0, element; (element = elements[i++]);) {
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| 298 | Prism.highlightElement(element);
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| 299 | }
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| 300 | }
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| 301 | };
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| 302 |
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| 303 | }());
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