add more events to lists.

lib/widget.js

@@ -2990,6 +2990,7 @@ Element.prototype.setLabel = function(options) {
 };
 
 Element.prototype.removeLabel = function() {
+  if (!this._label) return;
   this._label.detach();
   delete this._label;
 };
@@ -3072,6 +3073,7 @@ Element.prototype.setHover = function(options) {
 };
 
 Element.prototype.removeHover = function() {
+  if (!this._hover) return;
   this._hover.detach();
   delete this._hover;
 };
@@ -5346,6 +5348,8 @@ List.prototype.appendItem = function(item) {
       self.screen.render();
     });
   }
+
+  this.emit('add item');
 };
 
 List.prototype.find =
@@ -5423,6 +5427,7 @@ List.prototype.removeItem = function(child) {
       this.select(i - 1);
     }
   }
+  this.emit('remove item');
 };
 
 List.prototype.clearItems = function() {
@@ -5461,6 +5466,8 @@ List.prototype.setItems = function(items) {
   } else {
     this.select(Math.min(selected, items.length - 1));
   }
+
+  this.emit('set items');
 };
 
 List.prototype.select = function(index) {
@@ -5492,6 +5499,9 @@ List.prototype.select = function(index) {
   this.value = helpers.cleanTags(this.ritems[this.selected]);
   if (!this.parent) return;
   this.scrollTo(this.selected);
+
+  // XXX Move `action` and `select` events here.
+  this.emit('select item', this.items[this.selected], this.selected);
 };
 
 List.prototype.move = function(offset) {
@@ -6513,6 +6523,8 @@ FileManager.prototype.refresh = function(cwd, callback) {
     self.select(0);
     self.screen.render();
 
+    self.emit('refresh');
+
     if (callback) callback();
   });
 };
@@ -7223,6 +7235,8 @@ Listbar.prototype.setItems = function(commands) {
   commands.forEach(function(cmd) {
     self.add(cmd);
   });
+
+  this.emit('set items');
 };
 
 Listbar.prototype.add =
@@ -7341,6 +7355,8 @@ Listbar.prototype.appendItem = function(item, callback) {
       self.screen.render();
     });
   }
+
+  this.emit('add item');
 };
 
 Listbar.prototype.render = function() {
@@ -7417,6 +7433,9 @@ Listbar.prototype.select = function(offset) {
       this.leftOffset -= diff;
     }
   }
+
+  // XXX Move `action` and `select` events here.
+  this.emit('select item', el, offset);
 };
 
 Listbar.prototype.removeItem = function(child) {
@@ -7433,6 +7452,8 @@ Listbar.prototype.removeItem = function(child) {
       this.select(i - 1);
     }
   }
+
+  this.emit('remove item');
 };
 
 Listbar.prototype.move = function(offset) {
@@ -7456,6 +7477,7 @@ Listbar.prototype.selectTab = function(index) {
     this.select(index);
     this.screen.render();
   }
+  this.emit('select tab', item, index);
 };
 
 /**