From edefade22a04c5416389ed424a308c459492f699 Mon Sep 17 00:00:00 2001
From: Luis Fernando Molina <Luis-Fernando-Molina@users.noreply.github.com>
Date: Mon, 10 Feb 2020 19:52:05 +0100
Subject: [PATCH] Borders with limits

---
 ChartsSpace/EdgeEditor.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/ChartsSpace/EdgeEditor.js b/ChartsSpace/EdgeEditor.js
index c94b495fd..5ddad9ca7 100644
--- a/ChartsSpace/EdgeEditor.js
+++ b/ChartsSpace/EdgeEditor.js
@@ -91,8 +91,17 @@ function newEdgeEditor () {
 
   function physics () {
     if (thisObject.container.frame.position.x === 0 && thisObject.container.frame.position.y === 0) { return }
+
+    const MIN_WIDTH = 100
+    const MIN_HEIGHT = 50
+
     switch (whereIsMouseOver) {
       case 'top' : {
+        if (thisObject.container.parentContainer.frame.height - thisObject.container.frame.position.y < MIN_HEIGHT) {
+          thisObject.container.frame.position.x = 0
+          thisObject.container.frame.position.y = 0
+          return
+        }
         thisObject.container.parentContainer.frame.position.y = thisObject.container.parentContainer.frame.position.y + thisObject.container.frame.position.y
         thisObject.container.parentContainer.frame.height = thisObject.container.parentContainer.frame.height - thisObject.container.frame.position.y
         thisObject.container.frame.position.x = 0
@@ -101,6 +110,11 @@ function newEdgeEditor () {
         break
       }
       case 'bottom' : {
+        if (thisObject.container.parentContainer.frame.height + thisObject.container.frame.position.y < MIN_HEIGHT) {
+          thisObject.container.frame.position.x = 0
+          thisObject.container.frame.position.y = 0
+          return
+        }
         thisObject.container.parentContainer.frame.height = thisObject.container.parentContainer.frame.height + thisObject.container.frame.position.y
         thisObject.container.frame.position.x = 0
         thisObject.container.frame.position.y = 0
@@ -108,6 +122,11 @@ function newEdgeEditor () {
         break
       }
       case 'left' : {
+        if (thisObject.container.parentContainer.frame.width - thisObject.container.frame.position.x < MIN_WIDTH) {
+          thisObject.container.frame.position.x = 0
+          thisObject.container.frame.position.y = 0
+          return
+        }
         thisObject.container.parentContainer.frame.position.x = thisObject.container.parentContainer.frame.position.x + thisObject.container.frame.position.x
         thisObject.container.parentContainer.frame.width = thisObject.container.parentContainer.frame.width - thisObject.container.frame.position.x
         thisObject.container.frame.position.x = 0
@@ -116,6 +135,11 @@ function newEdgeEditor () {
         break
       }
       case 'right' : {
+        if (thisObject.container.parentContainer.frame.width + thisObject.container.frame.position.x < MIN_WIDTH) {
+          thisObject.container.frame.position.x = 0
+          thisObject.container.frame.position.y = 0
+          return
+        }
         thisObject.container.parentContainer.frame.width = thisObject.container.parentContainer.frame.width + thisObject.container.frame.position.x
         thisObject.container.frame.position.x = 0
         thisObject.container.frame.position.y = 0