Pairables list in progress

view-webapp/src/main/webapp/js/tour-pairing.inc.js

@@ -1,2 +1,23 @@
+let focused = undefined;
+
 onLoad(()=>{
+  $('.listitem').on('click', e => {
+    if (e.shiftKey && typeof(focused) !== 'undefined') {
+      let from = focused.index('.listitem');
+      let to = e.target.closest('.listitem').index('.listitem');
+      if (from > to) {
+        let tmp = from;
+        from = to;
+        to = tmp;
+      }
+      let parent = e.target.closest('.multi-select');
+      let children = parent.childNodes.filter('.listitem');
+      for (let j = from; j <= to; ++j) {
+        children.item(j).addClass('selected');
+        children.item(j).attr('draggable', true);
+      }
+    } else {
+      focused = e.target.closest('.listitem').toggleClass('selected').attr('draggable', true);
+    }
+  });
 });