Add InfoCard to ContainmentCanvas.

package.json

@@ -21,8 +21,8 @@
   "author": "WebGME Dev Team",
   "license": "MIT",
   "dependencies": {
-    "@material-ui/core": "^3.1.0",
-    "@material-ui/icons": "^3.0.1",
+    "@material-ui/core": "3.1.0",
+    "@material-ui/icons": "3.0.1",
     "blockies": "0.0.2",
     "immutability-helper": "^2.8.1",
     "react-color": "^2.14.1",

src/components/ContainmentCanvas/ContainmentCanvas.jsx

@@ -123,6 +123,8 @@ class ContainmentCanvas extends SingleConnectedNode {
 
     cm = null;
     em = null;
+    item = null;
+    infoCard = null;
 
     offset = {
         x: 0,
@@ -137,6 +139,9 @@ class ContainmentCanvas extends SingleConnectedNode {
         if (this.props.children !== undefined) {
             if (this.props.children[0] !== undefined) {
                 this.item = this.props.children[0];
+                if (this.props.children[1] !== undefined) {
+                    this.infoCard = this.props.children[1];
+                }
             } else {
                 this.item = this.props.children;
             }
@@ -232,7 +237,7 @@ class ContainmentCanvas extends SingleConnectedNode {
                 onMouseMove={this.onMouseMove}
             >
                 <BasicConnectingComponent connectionManager={this.cm}/>
-                {childrenItems.length > 0 ? childrenItems : null}
+                {childrenItems.length > 0 ? childrenItems : this.infoCard}
             </div>);
 
         return connectDropTarget(content);