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dojo/request/notify.js
Maintainability
76.28
Lines of code
74
Difficulty
21.33
Estimated Errors
0.31
Function weight
By Complexity
By SLOC
define(['../Evented', '../_base/lang', './util'], function(Evented, lang, util){ // module: // dojo/request/notify // summary: // Global notification API for dojo/request. Notifications will // only be emitted if this module is required. // // | require('dojo/request', 'dojo/request/notify', // | function(request, notify){ // | notify('load', function(response){ // | if(response.url === 'someUrl.html'){ // | console.log('Loaded!'); // | } // | }); // | request.get('someUrl.html'); // | } // | ); var pubCount = 0, slice = [].slice; var hub = lang.mixin(new Evented, { onsend: function(data){ if(!pubCount){ this.emit('start'); } pubCount++; }, _onload: function(data){ this.emit('done', data); }, _onerror: function(data){ this.emit('done', data); }, _ondone: function(data){ if(--pubCount <= 0){ pubCount = 0; this.emit('stop'); } }, emit: function(type, event){ var result = Evented.prototype.emit.apply(this, arguments); // After all event handlers have run, run _on* handler if(this['_on' + type]){ this['_on' + type].apply(this, slice.call(arguments, 1)); } return result; } }); function notify(type, listener){ // summary: // Register a listener to be notified when an event // in dojo/request happens. // type: String? // The event to listen for. Events emitted: "start", "send", // "load", "error", "done", "stop". // listener: Function? // A callback to be run when an event happens. // returns: // A signal object that can be used to cancel the listener. // If remove() is called on this signal object, it will // stop the listener from being executed. return hub.on(type, listener); } notify.emit = function(type, event, cancel){ return hub.emit(type, event, cancel); }; // Attach notify to dojo/request/util to avoid // try{ require('./notify'); }catch(e){} return util.notify = notify; });