support drag and drop for playlist items

dashboard-ui/bower_components/dragula.js/example/example.js

@@ -0,0 +1,56 @@
+'use strict';
+
+var crossvent = require('crossvent');
+var sortable = $('sortable');
+
+dragula([$('left-defaults'), $('right-defaults')]);
+dragula([$('left-copy'), $('right-copy')], { copy: true });
+dragula([$('left-events'), $('right-events')])
+  .on('drag', function (el) {
+    el.className = el.className.replace('ex-moved', '');
+  })
+  .on('drop', function (el) {
+    el.className += ' ex-moved';
+  })
+  .on('over', function (el, container) {
+    container.className += ' ex-over';
+  })
+  .on('out', function (el, container) {
+    container.className = container.className.replace('ex-over', '');
+  });
+dragula([$('left-rollbacks'), $('right-rollbacks')], { revertOnSpill: true });
+dragula([$('left-lovehandles'), $('right-lovehandles')], {
+  moves: function (el, container, handle) {
+    return handle.className === 'handle';
+  }
+});
+
+dragula([$('left-rm-spill'), $('right-rm-spill')], { removeOnSpill: true });
+dragula([$('left-copy-1tomany'), $('right-copy-1tomany')], {
+  copy: function (el, source) {
+    return source === $('left-copy-1tomany');
+  },
+  accepts: function (el, target) {
+    return target !== $('left-copy-1tomany');
+  }
+});
+
+dragula([sortable]);
+
+crossvent.add(sortable, 'click', clickHandler);
+
+function clickHandler (e) {
+  var target = e.target;
+  if (target === sortable) {
+    return;
+  }
+  target.innerHTML += ' [click!]';
+
+  setTimeout(function () {
+    target.innerHTML = target.innerHTML.replace(/ \[click!\]/g, '');
+  }, 500);
+}
+
+function $ (id) {
+  return document.getElementById(id);
+}