Własna implementacja wzorca obserwator.

[redakcja.git] / project / static / js / app.js

diff --git a/project/static/js/app.js b/project/static/js/app.js
index 73ce107..2530ee1 100644 (file)
--- a/project/static/js/app.js
+++ b/project/static/js/app.js
@@ -100,8 +100,103 @@ var panel_hooks;
  
 var panels = [];
 
+var documentsUrl = '/api/documents/';
+
+
+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: '',
+  
+  init: function() {},
+  
+  getData: function(callback) {
+    console.log('get:', documentsUrl + fileId);
+    $.ajax({
+      cache: false,
+      url: documentsUrl + fileId,
+      dataType: 'json',
+      success: this.successfulGetData.bind(this, callback)
+    });
+  },
+  
+  successfulGetData: function(callback, data) {
+    this.data = data;
+    this.signal('changed');
+    if (callback) {
+      (callback.bind(this))(data);
+    }
+  },
+  
+  getXML: function(callback) {
+    this.signal('xml-freeze');
+    if (!this.data) {
+      this.getData(this.getXML);
+    } else {
+      console.log('getXML:', this.data.text_url);
+      $.ajax({
+        cache: false,
+        url: this.data.text_url,
+        dataType: 'text',
+        success: this.successfulGetXML.bind(this, callback)
+      });
+    };
+  },
+  
+  successfulGetXML: function(callback, data) {
+    if (data != this.xml) {
+      this.xml = data;
+      this.signal('changed');
+      this.signal('xml-changed');
+    }
+    this.signal('xml-unfreeze');
+  }
+});
+
+var leftPanelView, rightPanelContainer, doc;
+
 $(function() {
-  var splitView = new SplitView('#splitview');
-  var leftPanelView = new PanelContainerView('#left-panel-container');
-  var rightPanelContainer = new PanelContainerView('#right-panel-container');
+  doc = new DocumentModel();
+  var splitView = new SplitView('#splitview', doc);
+  leftPanelView = new PanelContainerView('#left-panel-container', doc);
+  rightPanelContainer = new PanelContainerView('#right-panel-container', doc);
 });