include dragNodes plugin by josemazo & sheymann

explorerjs.html

@@ -715,6 +715,7 @@
   <script src="tinawebJS/sigma_v1.2/plugins/sigma.layout.forceAtlas2/supervisor.js"></script>
   <script src="tinawebJS/sigma_v1.2/plugins/sigma.layout.forceAtlas2/worker.js"></script>
   <script src="tinawebJS/sigma_v1.2/plugins/sigma.renderers.snapshot/sigma.renderers.snapshot.js"></script>
+  <script src="tinawebJS/sigma_v1.2/plugins/sigma.plugins.dragNodes/sigma.plugins.dragNodes.js"></script>
 
   <!-- Tested as replacement for parseCustom -->
   <!-- <script src="tinawebJS/sigma_v1.2/plugins/sigma.parsers.gexf/gexf-parser.js"></script> -->

settings_explorerjs.js

@@ -172,6 +172,8 @@ TW.conf = (function(TW){
 
   TWConf.clusterColorsAtt = true;      // show "Set colors" menu
 
+  TWConf.dragNodesAvailable = true;    // allow dragging nodes
+
   TWConf.deselectOnclickStage = true   // click on background remove selection ?
                                        // (except when dragging)
 

tinawebJS/Tinaweb.js

@@ -893,6 +893,12 @@ var TinaWebJS = function ( sigmacanvas ) {
         $("#zoomSlider").slider("value",1/TW.cam.ratio)
       })
 
+
+      // dragNodes plugin
+      if (TW.conf.dragNodesAvailable) {
+        var dragListener = sigma.plugins.dragNodes(partialGraph, partialGraph.renderers[0]);
+      }
+
       // ---------------------------------------------------------------------
 
       // POSS: bind to captors  (0=>mouse, 1=>touch)

tinawebJS/sigma_v1.2/plugins/sigma.plugins.dragNodes/README.md

+sigma.plugins.dragNodes
+=====================
+
+Plugin developed by [José M. Camacho](https://github.com/josemazo), events by [Sébastien Heymann](https://github.com/sheymann) for [Linkurious](https://github.com/Linkurious).
+
+---
+
+This plugin provides a method to drag & drop nodes. At the moment, this plugin is not compatible with the WebGL renderer. Check the sigma.plugins.dragNodes function doc or the [example code](../../examples/drag-nodes.html) to know more.
+
+To use, include all .js files under this folder. Then initialize it as follows:
+
+````javascript
+var dragListener = new sigma.plugins.dragNodes(sigInst, renderer);
+````
+
+Kill the plugin as follows:
+
+````javascript
+sigma.plugins.killDragNodes(sigInst);
+````
+
+## Events
+
+This plugin provides the following events fired by the instance of the plugin:
+* `startdrag`: fired at the beginning of the drag
+* `drag`: fired while the node is dragged
+* `drop`: fired at the end of the drag if the node has been dragged
+* `dragend`: fired at the end of the drag
+
+Exemple of event binding:
+
+````javascript
+dragListener.bind('startdrag', function(event) {
+  console.log(event);
+});
+````