source: trip-planner-front/node_modules/debug/src/browser.js@ ceaed42

Last change on this file since ceaed42 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/* eslint-env browser */
2
3/**
4 * This is the web browser implementation of `debug()`.
5 */
6
7exports.formatArgs = formatArgs;
8exports.save = save;
9exports.load = load;
10exports.useColors = useColors;
11exports.storage = localstorage();
12exports.destroy = (() => {
13 let warned = false;
14
15 return () => {
16 if (!warned) {
17 warned = true;
18 console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
19 }
20 };
21})();
22
23/**
24 * Colors.
25 */
26
27exports.colors = [
28 '#0000CC',
29 '#0000FF',
30 '#0033CC',
31 '#0033FF',
32 '#0066CC',
33 '#0066FF',
34 '#0099CC',
35 '#0099FF',
36 '#00CC00',
37 '#00CC33',
38 '#00CC66',
39 '#00CC99',
40 '#00CCCC',
41 '#00CCFF',
42 '#3300CC',
43 '#3300FF',
44 '#3333CC',
45 '#3333FF',
46 '#3366CC',
47 '#3366FF',
48 '#3399CC',
49 '#3399FF',
50 '#33CC00',
51 '#33CC33',
52 '#33CC66',
53 '#33CC99',
54 '#33CCCC',
55 '#33CCFF',
56 '#6600CC',
57 '#6600FF',
58 '#6633CC',
59 '#6633FF',
60 '#66CC00',
61 '#66CC33',
62 '#9900CC',
63 '#9900FF',
64 '#9933CC',
65 '#9933FF',
66 '#99CC00',
67 '#99CC33',
68 '#CC0000',
69 '#CC0033',
70 '#CC0066',
71 '#CC0099',
72 '#CC00CC',
73 '#CC00FF',
74 '#CC3300',
75 '#CC3333',
76 '#CC3366',
77 '#CC3399',
78 '#CC33CC',
79 '#CC33FF',
80 '#CC6600',
81 '#CC6633',
82 '#CC9900',
83 '#CC9933',
84 '#CCCC00',
85 '#CCCC33',
86 '#FF0000',
87 '#FF0033',
88 '#FF0066',
89 '#FF0099',
90 '#FF00CC',
91 '#FF00FF',
92 '#FF3300',
93 '#FF3333',
94 '#FF3366',
95 '#FF3399',
96 '#FF33CC',
97 '#FF33FF',
98 '#FF6600',
99 '#FF6633',
100 '#FF9900',
101 '#FF9933',
102 '#FFCC00',
103 '#FFCC33'
104];
105
106/**
107 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
108 * and the Firebug extension (any Firefox version) are known
109 * to support "%c" CSS customizations.
110 *
111 * TODO: add a `localStorage` variable to explicitly enable/disable colors
112 */
113
114// eslint-disable-next-line complexity
115function useColors() {
116 // NB: In an Electron preload script, document will be defined but not fully
117 // initialized. Since we know we're in Chrome, we'll just detect this case
118 // explicitly
119 if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
120 return true;
121 }
122
123 // Internet Explorer and Edge do not support colors.
124 if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
125 return false;
126 }
127
128 // Is webkit? http://stackoverflow.com/a/16459606/376773
129 // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
130 return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
131 // Is firebug? http://stackoverflow.com/a/398120/376773
132 (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
133 // Is firefox >= v31?
134 // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
135 (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
136 // Double check webkit in userAgent just in case we are in a worker
137 (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
138}
139
140/**
141 * Colorize log arguments if enabled.
142 *
143 * @api public
144 */
145
146function formatArgs(args) {
147 args[0] = (this.useColors ? '%c' : '') +
148 this.namespace +
149 (this.useColors ? ' %c' : ' ') +
150 args[0] +
151 (this.useColors ? '%c ' : ' ') +
152 '+' + module.exports.humanize(this.diff);
153
154 if (!this.useColors) {
155 return;
156 }
157
158 const c = 'color: ' + this.color;
159 args.splice(1, 0, c, 'color: inherit');
160
161 // The final "%c" is somewhat tricky, because there could be other
162 // arguments passed either before or after the %c, so we need to
163 // figure out the correct index to insert the CSS into
164 let index = 0;
165 let lastC = 0;
166 args[0].replace(/%[a-zA-Z%]/g, match => {
167 if (match === '%%') {
168 return;
169 }
170 index++;
171 if (match === '%c') {
172 // We only are interested in the *last* %c
173 // (the user may have provided their own)
174 lastC = index;
175 }
176 });
177
178 args.splice(lastC, 0, c);
179}
180
181/**
182 * Invokes `console.debug()` when available.
183 * No-op when `console.debug` is not a "function".
184 * If `console.debug` is not available, falls back
185 * to `console.log`.
186 *
187 * @api public
188 */
189exports.log = console.debug || console.log || (() => {});
190
191/**
192 * Save `namespaces`.
193 *
194 * @param {String} namespaces
195 * @api private
196 */
197function save(namespaces) {
198 try {
199 if (namespaces) {
200 exports.storage.setItem('debug', namespaces);
201 } else {
202 exports.storage.removeItem('debug');
203 }
204 } catch (error) {
205 // Swallow
206 // XXX (@Qix-) should we be logging these?
207 }
208}
209
210/**
211 * Load `namespaces`.
212 *
213 * @return {String} returns the previously persisted debug modes
214 * @api private
215 */
216function load() {
217 let r;
218 try {
219 r = exports.storage.getItem('debug');
220 } catch (error) {
221 // Swallow
222 // XXX (@Qix-) should we be logging these?
223 }
224
225 // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
226 if (!r && typeof process !== 'undefined' && 'env' in process) {
227 r = process.env.DEBUG;
228 }
229
230 return r;
231}
232
233/**
234 * Localstorage attempts to return the localstorage.
235 *
236 * This is necessary because safari throws
237 * when a user disables cookies/localstorage
238 * and you attempt to access it.
239 *
240 * @return {LocalStorage}
241 * @api private
242 */
243
244function localstorage() {
245 try {
246 // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
247 // The Browser also has localStorage in the global context.
248 return localStorage;
249 } catch (error) {
250 // Swallow
251 // XXX (@Qix-) should we be logging these?
252 }
253}
254
255module.exports = require('./common')(exports);
256
257const {formatters} = module.exports;
258
259/**
260 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
261 */
262
263formatters.j = function (v) {
264 try {
265 return JSON.stringify(v);
266 } catch (error) {
267 return '[UnexpectedJSONParseError]: ' + error.message;
268 }
269};
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