fix previous commit - accidentally hid top links unnecessarily

Author: hmsklee

js/components/link.js

@@ -88,6 +88,7 @@ class Link {
       let draggedHandle = null;
       let x = 0;
 
+      this.line.dblclick((e) => svg.fire('build-tree', { object: this, event: e }));
       this.line.node.oncontextmenu = (e) => {
         e.preventDefault();
         svg.fire('link-right-click', { object: this, type: 'link', event: e });

js/components/word.js

@@ -111,6 +111,7 @@ class Word {
         });
 
       // attach right click listener
+      this.svgText.dblclick((e) => svg.fire('build-tree', { object: this, event: e }));
       this.svgText.node.oncontextmenu = (e) => {
         e.preventDefault();
         svg.fire('word-right-click', { object: this, event: e });

js/main.js

@@ -262,6 +262,9 @@ const Main = (function() {
       if (!l.top) {
         bool ? l.show() : l.hide();
       }
+      else {
+        l.show();
+      }
     });
     if (rm.rows.length > 0) {
       rm.resizeAll();

js/treelayout.js

@@ -106,7 +106,7 @@ const TreeLayout = (function() {
               if (depth < maxDepth) {
                 let links = node.links.filter(l => l.top);
                 let args = [];
-                let corefs = links.filter(x => !x.trigger)
+                let corefs = links.filter(x => !x.trigger && (!source || x !== source.node))
                   .map(coref => {
                     return {
                       type: coref.reltype,