From: zuber Date: Fri, 25 Sep 2009 14:45:40 +0000 (+0200) Subject: Własna implementacja wzorca obserwator. X-Git-Url: https://git.mdrn.pl/redakcja.git/commitdiff_plain/75c342df9bdad4455cd555ebb449cb82d3dc6fae?hp=9490c431ea46a6c3d9f1d348a5b525c0bd3b6359 Własna implementacja wzorca obserwator. --- diff --git a/project/static/js/app.js b/project/static/js/app.js index cfac5030..2530ee1a 100644 --- a/project/static/js/app.js +++ b/project/static/js/app.js @@ -102,7 +102,47 @@ var panels = []; var documentsUrl = '/api/documents/'; -var DocumentModel = Class.extend({ + +var Model = Class.extend({ + observers: {}, + + init: function() {}, + + signal: function(event, data) { + console.log('signal', this, event, data); + if (this.observers[event]) { + for (var i=0; i < this.observers[event].length; i++) { + this.observers[event][i].handle(event, data); + }; + }; + return this; + }, + + addObserver: function(observer, event) { + if (!this.observers[event]) { + this.observers[event] = []; + } + this.observers[event].push(observer); + return this; + }, + + removeObserver: function(observer, event) { + if (!event) { + for (e in this.observers) { + this.removeObserver(observer, e); + } + } else { + for (var i=0; i < this.observers[event].length; i++) { + if (this.observers[event][i] === observer) { + this.observers[event].splice(i, 1); + } + } + } + return this; + } +}) + +var DocumentModel = Model.extend({ data: null, // name, text_url, latest_rev, latest_shared_rev, parts_url, dc_url, size xml: '', html: '', @@ -121,14 +161,14 @@ var DocumentModel = Class.extend({ successfulGetData: function(callback, data) { this.data = data; - this.modelChanged(); + this.signal('changed'); if (callback) { (callback.bind(this))(data); } }, getXML: function(callback) { - $(this).trigger('modelxmlfreeze'); + this.signal('xml-freeze'); if (!this.data) { this.getData(this.getXML); } else { @@ -145,14 +185,10 @@ var DocumentModel = Class.extend({ successfulGetXML: function(callback, data) { if (data != this.xml) { this.xml = data; - this.modelChanged(); - $(this).trigger('modelxmlchanged'); + this.signal('changed'); + this.signal('xml-changed'); } - $(this).trigger('modelxmlunfreeze'); - }, - - modelChanged: function() { - $(this).trigger('modelchanged'); + this.signal('xml-unfreeze'); } });