/* Private Members */
var hasOwn = Object.prototype.hasOwnProperty,
- slice = Array.prototype.slice;
+ slice = Array.prototype.slice,
+ trackCallbacks = $.Callbacks( 'memory' ),
+ trackQueue = [];
/**
* Log a message to window.console, if possible. Useful to force logging of some
return {
/* Public Members */
+ /**
+ * Get the current time, measured in milliseconds since January 1, 1970 (UTC).
+ *
+ * On browsers that implement the Navigation Timing API, this function will produce floating-point
+ * values with microsecond precision that are guaranteed to be monotonic. On all other browsers,
+ * it will fall back to using `Date`.
+ *
+ * @returns {number} Current time
+ */
+ now: ( function () {
+ var perf = window.performance,
+ navStart = perf && perf.timing && perf.timing.navigationStart;
+ return navStart && typeof perf.now === 'function' ?
+ function () { return navStart + perf.now(); } :
+ function () { return +new Date(); };
+ }() ),
+
+ /**
+ * Track an analytic event.
+ *
+ * This method provides a generic means for MediaWiki JavaScript code to capture state
+ * information for analysis. Each logged event specifies a string topic name that describes
+ * the kind of event that it is. Topic names consist of dot-separated path components,
+ * arranged from most general to most specific. Each path component should have a clear and
+ * well-defined purpose.
+ *
+ * Data handlers are registered via `mw.trackSubscribe`, and receive the full set of
+ * events that match their subcription, including those that fired before the handler was
+ * bound.
+ *
+ * @param {string} topic Topic name
+ * @param {Object} [data] Data describing the event, encoded as an object
+ */
+ track: function ( topic, data ) {
+ trackQueue.push( { topic: topic, timeStamp: mw.now(), data: data } );
+ trackCallbacks.fire( trackQueue );
+ },
+
+ /**
+ * Register a handler for subset of analytic events, specified by topic
+ *
+ * Handlers will be called once for each tracked event, including any events that fired before the
+ * handler was registered; 'this' is set to a plain object with a 'timeStamp' property indicating
+ * the exact time at which the event fired, a string 'topic' property naming the event, and a
+ * 'data' property which is an object of event-specific data. The event topic and event data are
+ * also passed to the callback as the first and second arguments, respectively.
+ *
+ * @param {string} topic Handle events whose name starts with this string prefix
+ * @param {Function} callback Handler to call for each matching tracked event
+ */
+ trackSubscribe: function ( topic, callback ) {
+ var seen = 0;
+
+ trackCallbacks.add( function ( trackQueue ) {
+ var event;
+ for ( ; seen < trackQueue.length; seen++ ) {
+ event = trackQueue[ seen ];
+ if ( event.topic.indexOf( topic ) === 0 ) {
+ callback.call( event, event.topic, event.data );
+ }
+ }
+ } );
+ },
+
/**
* Dummy placeholder for {@link mw.log}
* @method
// Cache hit stats
stats: { hits: 0, misses: 0, expired: 0 },
+ // Experiment data
+ experiment: ( function () {
+ var start = ( new Date() ).getTime(), id = 0, seed = 0;
+
+ try {
+ id = JSON.parse( localStorage.getItem( 'moduleStorageExperiment2' ) );
+ if ( typeof id !== 'number' ) {
+ id = Math.floor( Math.random() * Math.random() * 1e16 );
+ localStorage.setItem( 'moduleStorageExperiment2', id );
+ }
+ seed = id % 2000;
+ } catch ( e ) {}
+
+ return {
+ // Unique identifier for this browser. This allows us to group all
+ // datapoints generated by a particular browser, which in turn allows us
+ // to see how the initial load compares to subsequent page loads.
+ id: id,
+
+ // Group assignment may be 0 (not in experiment), 1 (control group), or 2
+ // (experimental group). Browsers that don't implement all the prerequisite APIs
+ // (JSON and Web Storage) are ineligible. Eligible browsers have a 0.1% chance
+ // of being included in the experiment, in which case they are equally likely to
+ // be assigned to either the experimental or control group.
+ group: seed === 1 ? 1 : ( seed === 2 ? 2 : 0 ),
+
+ // Assess module storage performance by measuring the time between this
+ // reference point and the window load event.
+ start: start
+ };
+ }() ),
+
/**
* Construct a JSON-serializable object representing the content of the store.
* @return {Object} Module store contents.
return;
}
- if ( !mw.config.get( 'wgResourceLoaderStorageEnabled' ) || mw.config.get( 'debug' ) ) {
+ if ( ( !mw.config.get( 'wgResourceLoaderStorageEnabled' ) && mw.loader.store.experiment.group !== 2 )
+ || mw.config.get( 'debug' ) ) {
// Disabled by configuration, or because debug mode is set
mw.loader.store.enabled = false;
return;
JSON.stringify( descriptor.style ),
JSON.stringify( descriptor.messages )
];
+ // Attempted workaround for a possible Opera bug (bug 57567).
+ // This regex should never match under sane conditions.
+ if ( /^\s*\(/.test( args[1] ) ) {
+ args[1] = 'function' + args[1];
+ log( 'Detected malformed function stringification (bug 57567)' );
+ }
} catch ( e ) {
return;
}
dépôts / lhc / web / wiklou.git / blobdiff