renamed getEdges to getConnectedEdges, made getConnectedNodes also work for edges

docs/network/index.html

@@ -715,7 +715,7 @@ var locales = {
 
 
             <tr class="subHeader">
-                <td colspan="2">Methods to get information on nodes.</td>
+                <td colspan="2">Methods to get information on nodes and edges.</td>
             </tr>
             <tr class="collapsible toggle" onclick="toggleTable('methodTable','getPositions', this);">
                 <td colspan="2"><span parent="getPositions" class="right-caret"></span> getPositions(<code><i>[Array of
@@ -787,19 +787,20 @@ var locales = {
             </tr>
             <tr class="collapsible toggle" onclick="toggleTable('methodTable','getConnectedNodes', this);">
                 <td colspan="2"><span parent="getConnectedNodes" class="right-caret"></span> getConnectedNodes(<code><i>String
-                    nodeId</i></code>)
+                    nodeId or edgeId</i></code>)
                 </td>
             </tr>
             <tr class="hidden" parent="getConnectedNodes">
                 <td class="midMethods">Returns: Array</td>
-                <td>Returns an array of nodeIds of the all the nodes that are directly connected to this node.</td>
+                <td>Returns an array of nodeIds of the all the nodes that are directly connected to this node. If you supply an edgeId,
+                vis will first match the id to nodes. If no match is found, it will search in the edgelist and return an array: <code>[fromId, toId]</code>.</td>
             </tr>
-            <tr class="collapsible toggle" onclick="toggleTable('methodTable','getEdges', this);">
-                <td colspan="2"><span parent="getEdges" class="right-caret"></span> getEdges(<code><i>String
+            <tr class="collapsible toggle" onclick="toggleTable('methodTable','getConnectedEdges', this);">
+                <td colspan="2"><span parent="getConnectedEdges" class="right-caret"></span> getConnectedEdges(<code><i>String
                     nodeId</i></code>)
                 </td>
             </tr>
-            <tr class="hidden" parent="getEdges">
+            <tr class="hidden" parent="getConnectedEdges">
                 <td class="midMethods">Returns: Array</td>
                 <td>Returns an array of edgeIds of the edges connected to this node.</td>
             </tr>

lib/network/Network.js

@@ -449,7 +449,14 @@ Network.prototype.deleteSelected      = function() {return this.manipulation.del
 Network.prototype.getPositions        = function() {return this.nodesHandler.getPositions.apply(this.nodesHandler,arguments);};
 Network.prototype.storePositions      = function() {return this.nodesHandler.storePositions.apply(this.nodesHandler,arguments);};
 Network.prototype.getBoundingBox      = function() {return this.nodesHandler.getBoundingBox.apply(this.nodesHandler,arguments);};
-Network.prototype.getConnectedNodes   = function() {return this.nodesHandler.getConnectedNodes.apply(this.nodesHandler,arguments);};
+Network.prototype.getConnectedNodes   = function(objectId) {
+  if (this.body.nodes[objectId] !== undefined) {
+    return this.nodesHandler.getConnectedNodes.apply(this.nodesHandler,arguments);
+  }
+  else {
+    return this.edgesHandler.getConnectedNodes.apply(this.edgesHandler,arguments);
+  }
+};
 Network.prototype.getEdges            = function() {return this.nodesHandler.getEdges.apply(this.nodesHandler,arguments);};
 Network.prototype.startSimulation     = function() {return this.physics.startSimulation.apply(this.physics,arguments);};
 Network.prototype.stopSimulation      = function() {return this.physics.stopSimulation.apply(this.physics,arguments);};

lib/network/modules/EdgesHandler.js

@@ -341,8 +341,6 @@ class EdgesHandler {
     }
   }
 
-
-
   /**
    * Reconnect all edges
    * @private
@@ -369,6 +367,16 @@ class EdgesHandler {
   }
 
 
+  getConnectedNodes(edgeId) {
+    let nodeList = [];
+    if (this.body.edges[edgeId] !== undefined) {
+      let edge = this.body.edges[edgeId];
+      if (edge.fromId) {nodeList.push(edge.fromId);}
+      if (edge.toId)   {nodeList.push(edge.toId);}
+    }
+    return nodeList;
+  }
+
 }
 
 export default EdgesHandler;