From 5f4defa2e6557bc0972f1e14e56f6cff94bebb55 Mon Sep 17 00:00:00 2001
From: eli173 <eli@eli173.com>
Date: Sat, 29 Aug 2015 12:24:44 -0500
Subject: [PATCH] got naming, deletion good

---
 graph.js   | 55 +++++++++++++++++++++++++++++++++++++++++++++---------
 index.html |  5 +++++
 2 files changed, 51 insertions(+), 9 deletions(-)

diff --git a/graph.js b/graph.js
index 1d6ef5c..7d99dac 100644
--- a/graph.js
+++ b/graph.js
@@ -12,6 +12,7 @@ e_counter = 0;
 
 mode = 'v'
 curr_vert = null;
+curr_ed = null;
 
 evt = null;
 
@@ -48,8 +49,6 @@ var mousedown = function(options,canvas) {
 				   y:options.e.pageY});
 	    canvas.add(vert);
 	    canvas.bringToFront(vert);
-	    console.log(vert)
-	    console.log(options.e.pageY-v_radius)
 	}
 	break;
     case 'e':
@@ -69,21 +68,24 @@ var mousedown = function(options,canvas) {
 		curr_vert = null;
 		canvas.add(edge);
 		canvas.sendToBack(edge);
-		console.log(edge);
-		console.log(options.target.left)
 	    }
 	}
 	break;
     case 's':
+	if(options.target && options.target.type == 'Vertex') {
+	    curr_ed = options.target;
+	    document.getElementById("label").value = curr_ed.label;
+	    document.getElementById("editor").style.display = "block";
+	    
+	}
 	break;
     case 'd':
 	if(options.target) {
-	    if(options.target.type=='Edge') {
-		canvas.remove(options.target);
-	    }
-	    else { // it's a vertex...
-		edges = []
+	    if(options.target.type=='Vertex') {
+		edges = getEdges(options.target,canvas);
+		edges.map(function(e){canvas.remove(e);});
 	    }
+	    canvas.remove(options.target);
 	}
 	break;
     default:
@@ -93,10 +95,45 @@ var mousedown = function(options,canvas) {
     canvas.renderAll();
 };
 
+var submit = function() {
+    var label = document.getElementById('label').value;
+    labelVertex(curr_ed,label);
+}
+
 var labelVertex = function(vert,label) {
     vert.set({'label':label});
 }
 
+var getEdges = function(vert,canvas) {
+    edges = [];
+    canvas.forEachObject(function(o) {
+	if(o.type == 'Edge' && o.vertices != []) {
+	    if(o.vertices[0]==vert) {
+		edges.push(o);
+	    }
+	    else if(o.vertices[1]==vert) {
+		edges.push(o);
+	    }
+	}
+    });
+    return edges;//here too
+}
+
+var getNeighbors = function(vert,canvas) {
+    neighbors = [];
+    canvas.forEachObject(function(o) {
+	// here
+	if(o.type == 'Edge' && o.vertices!=[]) {
+	    if(o.vertices[0]==vert) {
+		neighbors.push(o.vertices[1]);
+	    }
+	    else if(o.vertices[1]==vert) {
+		neighbors.push(o.vertices[0]);
+	    }
+	}
+    });
+    return neighbors;
+}
 
 var Vertex = fabric.util.createClass(fabric.Circle, {
     type: 'Vertex',
diff --git a/index.html b/index.html
index 00b8e10..88dcb18 100644
--- a/index.html
+++ b/index.html
@@ -18,5 +18,10 @@
       <button onclick="mode = 's'">Select</button>
       <button onclick="mode = 'd'">Remove</button>
     </div>
+    <div id="editor" style="display: none">
+      Label: <input id="label" type="text" value=""/>
+      Neighbors: <div id="neighbors"></div>
+      <input id="submitlabel" type="button" value="OK" onclick="submit()"/>
+    </div>
   </body>
 </html>
-- 
2.39.2