Allow to save maps.

src/app/crawler.js

@@ -1,8 +1,6 @@
 function ScholarCrawler(parser, nodes, edges)
 {
   this.stack = [];
-  this.edge_ids = {};
-  this.node_ids = {};
 
   this.nodes = nodes;
   this.edges = edges;
@@ -121,9 +119,8 @@ ScholarCrawler.prototype._add_child_article = function(child_article, parent_nod
 
     edge._id = edge.id;
 
-    if(!(edge._id in this.edge_ids))
+    if(this.edges.getIds().indexOf(edge._id) < 0)
     {
-      this.edge_ids[edge._id] = true;
       this.edges.add(edge);
       citations_db.insert(edge);
     }
@@ -136,9 +133,8 @@ ScholarCrawler.prototype._add_child_article = function(child_article, parent_nod
   else
     this.push(child_node, levels-1);
 
-  if(!(child_node._id in this.node_ids))
+  if(this.nodes.getIds().indexOf(child_node._id) < 0)
   {
-    this.node_ids[child_node._id] = true;
     this.nodes.add(child_node);
   }
   else
@@ -155,14 +151,14 @@ ScholarCrawler.prototype.push = function(parent_node, levels)
   if(!parent_node.is_dummy)
   {
     parent_node.group = "processing";
-    if(parent_node._id in this.node_ids)
+    if(this.nodes.getIds().indexOf(parent_node._id) >= 0)
     {
       this.nodes.update(parent_node);
     }
   }
 };
 
-ScholarCrawler.prototype.next = function()
+ScholarCrawler.prototype.start = function()
 {
   if(this.stack.length > 0)
   {
@@ -171,5 +167,5 @@ ScholarCrawler.prototype.next = function()
   }
 
   var crawler = this;
-  setTimeout(function() { crawler.next() }, 1000);
+  setTimeout(function() { crawler.start() }, 1000);
 };

src/app/main.js

@@ -4,7 +4,7 @@ var nedb = require('nedb');
 var path = require('path');
 var win = gui.Window.get();
 
-win.maximize();
+//win.maximize();
 
 function createDB(name)
 {
@@ -22,5 +22,6 @@ function open_external(url)
 
 var articles_db = createDB("articles");
 var citations_db = createDB("citations");
+var maps_db = createDB("maps");
 
 new MainMenuView().render(document.getElementById("main"));

src/app/model/map.js

@@ -0,0 +1,8 @@
+function ScholarMap(seed_url)
+{
+  this.edges = [];
+  this.nodes = [];
+  this.seed_url = seed_url;
+  this.is_initialized = false;
+}
+

src/app/templates/main_menu.html

@@ -1,6 +1,12 @@
-<div class="frame">
+<div class="outer_frame">
+  <div class="widget_box search_box">
     <h1>Scholarium</h1>
     <form action="">
       <input name="url" autocomplete="off"></input>
     </form>
+  </div>
+  <div class="widget_box">
+      <h2>Saved maps</h2>
+      <ul id="saved_maps_container"></ul>
+  </div>
 </div>

src/app/views/main_menu.js

@@ -5,13 +5,34 @@ MainMenuView.prototype.render = function(container)
   var main_menu_div = document.createElement("div");
   $(main_menu_div).addClass("main_menu");
 
-  $(main_menu_div).load("app/templates/main_menu.html", function() {
-    document.forms[0].onsubmit = function() {
+  $(main_menu_div).load("app/templates/main_menu.html", function()
+  {
+    document.forms[0].onsubmit = function()
+    {
       var seed_url = $("input[name=url]").val();
-      var view = new ShowMapView(seed_url);
+      var view = new ShowMapView(new ScholarMap(seed_url));
       view.render(container);
       return false;
     };
+
+    maps_db.find({}, function(err, maps)
+    {
+        maps.forEach(function(map)
+        {
+            var ul = document.getElementById('saved_maps_container');
+            var li = document.createElement("li");
+			var a = document.createElement("a");
+            a.onclick = function() {
+                new ShowMapView(map).render(container);
+                return false;
+            };
+			a.href = "";
+            $(a).append(map.nodes[0].title);
+			li.appendChild(a);
+            ul.appendChild(li);
+        });
+    });
+    
   });
 
   $(container).empty();

src/app/views/show_map.js

@@ -1,33 +1,58 @@
-function ShowMapView(seed_url) {
-  this.seed_url = seed_url;
+//function ShowMapView(seed_url) {
+//  this.seed_url = seed_url;
+//};
+
+function ShowMapView(map) {
+  this.map = map;
 };
 
 ShowMapView.prototype.render = function(container)
 {
-  var edges = new vis.DataSet();
-  var nodes = new vis.DataSet();
+  this.nodes = new vis.DataSet();
+  this.edges = new vis.DataSet();
+
+  this.nodes.add(this.map.nodes);
+  this.edges.add(this.map.edges);
 
   var parser = new ScopusParser();
-  var crawler = new ScholarCrawler(parser, nodes, edges);
-  crawler.push({ is_dummy: true, article: { citations_url: this.seed_url } }, 2);
-  crawler.next();
+  var crawler = new ScholarCrawler(parser, this.nodes, this.edges);
+  crawler.start();
 
   document.crawler = crawler;
 
+  if(!this.map.is_initialized)
+  {
+    crawler.push({ is_dummy: true, article: { citations_url: this.map.seed_url } }, 2);
+    this.map.is_initialized = true;
+  }
+
   var network_div = document.createElement('div');
   $(network_div).addClass("mynetwork");
   $(container).empty();
   container.appendChild(network_div)
 
-  var data = { nodes: nodes, edges: edges };
-  var network = new vis.Network(network_div, data, visjs_options);
+  var data = { nodes: this.nodes, edges: this.edges };
+  this.network = new vis.Network(network_div, data, visjs_options);
 
-  network.on('doubleClick', function(params) {
+  this.network.on('doubleClick', function(params) {
     if(params.nodes.length > 0)
-      crawler.push(nodes.get(params.nodes[0]), 1);
-  });
+    {
+      crawler.push(this.nodes.get(params.nodes[0]), 1);
+    }
+    else
+    {
+      console.log("saving map");
+      this.network.storePosition();
+      this.map.nodes = this.nodes.get();
+      this.map.edges = this.edges.get();
+      if(!this.map._id)
+        maps_db.insert(this.map);
+      else
+        maps_db.update({_id: this.map._id}, this.map);
+    }
+  }.bind(this));
 
-  network.on("resize", function(params) {
+  this.network.on("resize", function(params) {
     var height = $(window).height();
     var width = $(window).width();
     $(".mynetwork").css("width", width);

src/css/main.css

@@ -1,7 +1,7 @@
 @import url(http://fonts.googleapis.com/css?family=Dosis:400,700&subset=latin,latin-ext);
 
 body {
-  background-color: #066;
+  background-color: #056;
 }
 
 html, body {

src/css/main_menu.css

@@ -3,6 +3,7 @@
   font-size: 16px;
   font-family: sans;
   height: 100vh;
+  color: #fff;
 }
 
 .main_menu input {
@@ -18,19 +19,37 @@
 	
 }
 
+.main_menu h1,
+.main_menu h2 {
+  font-weight: normal;
+}
+
 .main_menu h1 {
-    color: #fff;
   font-size: 60px;
 }
 
-.main_menu .frame {
-    margin: 0 auto;
+.main_menu .widget_box {
+  margin: 10px auto;
   padding: 1px 1px 50px 1px;
-    background-color: rgba(0,0,0,0);
-    box-shadow: 2px 2px 100px #388;
+  background-color: rgba(255,255,255,0.03);
+  box-shadow: 0px 0px 30px #378;
   width: 800px;
   
+}
+
+.main_menu .outer_frame {
+  padding: 1px;
   top: 50%;
   position: relative;
   -webkit-transform: translateY(-50%);
 }
+
+.main_menu ul {
+  text-align: left;
+  overflow: hidden;
+}
+
+.main_menu a {
+  color: #fff;
+  text-decoration: none;
+}

src/index.html

@@ -11,6 +11,8 @@
   <script type="text/javascript" src="app/crawler.js"></script>
   <script type="text/javascript" src="app/config.js"></script>
 
+  <script type="text/javascript" src="app/model/map.js"></script>
+
   <script type="text/javascript" src="app/views/show_map.js"></script>
   <script type="text/javascript" src="app/views/main_menu.js"></script>