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- /* eslint-env browser */
- /**
- * This is the web browser implementation of `debug()`.
- */
- exports.formatArgs = formatArgs;
- exports.save = save;
- exports.load = load;
- exports.useColors = useColors;
- exports.storage = localstorage();
- exports.destroy = (() => {
- let warned = false;
- return () => {
- if (!warned) {
- warned = true;
- console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
- }
- };
- })();
- /**
- * Colors.
- */
- exports.colors = [
- '#0000CC',
- '#0000FF',
- '#0033CC',
- '#0033FF',
- '#0066CC',
- '#0066FF',
- '#0099CC',
- '#0099FF',
- '#00CC00',
- '#00CC33',
- '#00CC66',
- '#00CC99',
- '#00CCCC',
- '#00CCFF',
- '#3300CC',
- '#3300FF',
- '#3333CC',
- '#3333FF',
- '#3366CC',
- '#3366FF',
- '#3399CC',
- '#3399FF',
- '#33CC00',
- '#33CC33',
- '#33CC66',
- '#33CC99',
- '#33CCCC',
- '#33CCFF',
- '#6600CC',
- '#6600FF',
- '#6633CC',
- '#6633FF',
- '#66CC00',
- '#66CC33',
- '#9900CC',
- '#9900FF',
- '#9933CC',
- '#9933FF',
- '#99CC00',
- '#99CC33',
- '#CC0000',
- '#CC0033',
- '#CC0066',
- '#CC0099',
- '#CC00CC',
- '#CC00FF',
- '#CC3300',
- '#CC3333',
- '#CC3366',
- '#CC3399',
- '#CC33CC',
- '#CC33FF',
- '#CC6600',
- '#CC6633',
- '#CC9900',
- '#CC9933',
- '#CCCC00',
- '#CCCC33',
- '#FF0000',
- '#FF0033',
- '#FF0066',
- '#FF0099',
- '#FF00CC',
- '#FF00FF',
- '#FF3300',
- '#FF3333',
- '#FF3366',
- '#FF3399',
- '#FF33CC',
- '#FF33FF',
- '#FF6600',
- '#FF6633',
- '#FF9900',
- '#FF9933',
- '#FFCC00',
- '#FFCC33'
- ];
- /**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
- // eslint-disable-next-line complexity
- function useColors() {
- // NB: In an Electron preload script, document will be defined but not fully
- // initialized. Since we know we're in Chrome, we'll just detect this case
- // explicitly
- if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
- return true;
- }
- // Internet Explorer and Edge do not support colors.
- if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
- return false;
- }
- // Is webkit? http://stackoverflow.com/a/16459606/376773
- // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
- return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
- // Is firebug? http://stackoverflow.com/a/398120/376773
- (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
- // Is firefox >= v31?
- // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
- (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
- // Double check webkit in userAgent just in case we are in a worker
- (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
- }
- /**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
- function formatArgs(args) {
- args[0] = (this.useColors ? '%c' : '') +
- this.namespace +
- (this.useColors ? ' %c' : ' ') +
- args[0] +
- (this.useColors ? '%c ' : ' ') +
- '+' + module.exports.humanize(this.diff);
- if (!this.useColors) {
- return;
- }
- const c = 'color: ' + this.color;
- args.splice(1, 0, c, 'color: inherit');
- // The final "%c" is somewhat tricky, because there could be other
- // arguments passed either before or after the %c, so we need to
- // figure out the correct index to insert the CSS into
- let index = 0;
- let lastC = 0;
- args[0].replace(/%[a-zA-Z%]/g, match => {
- if (match === '%%') {
- return;
- }
- index++;
- if (match === '%c') {
- // We only are interested in the *last* %c
- // (the user may have provided their own)
- lastC = index;
- }
- });
- args.splice(lastC, 0, c);
- }
- /**
- * Invokes `console.debug()` when available.
- * No-op when `console.debug` is not a "function".
- * If `console.debug` is not available, falls back
- * to `console.log`.
- *
- * @api public
- */
- exports.log = console.debug || console.log || (() => {});
- /**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
- function save(namespaces) {
- try {
- if (namespaces) {
- exports.storage.setItem('debug', namespaces);
- } else {
- exports.storage.removeItem('debug');
- }
- } catch (error) {
- // Swallow
- // XXX (@Qix-) should we be logging these?
- }
- }
- /**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
- function load() {
- let r;
- try {
- r = exports.storage.getItem('debug');
- } catch (error) {
- // Swallow
- // XXX (@Qix-) should we be logging these?
- }
- // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
- if (!r && typeof process !== 'undefined' && 'env' in process) {
- r = process.env.DEBUG;
- }
- return r;
- }
- /**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
- function localstorage() {
- try {
- // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
- // The Browser also has localStorage in the global context.
- return localStorage;
- } catch (error) {
- // Swallow
- // XXX (@Qix-) should we be logging these?
- }
- }
- module.exports = require('./common')(exports);
- const {formatters} = module.exports;
- /**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
- formatters.j = function (v) {
- try {
- return JSON.stringify(v);
- } catch (error) {
- return '[UnexpectedJSONParseError]: ' + error.message;
- }
- };
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