Add toolbar tooltips

data/plugins/toolbarview.lua

@@ -24,6 +24,7 @@ function ToolbarView:new()
   ToolbarView.super.new(self)
   self.visible = true
   self.init_size = toolbar_height
+  self.tooltip = false
 end
 
 
@@ -89,10 +90,15 @@ function ToolbarView:on_mouse_moved(px, py, ...)
   for item, x, y, w, h in self:each_item() do
     if px > x and py > y and px <= x + w and py <= y + h then
       self.hovered_item = item
-      core.log(command.prettify_name(item.command))
-      break
+      core.status_view:show_tooltip(command.prettify_name(item.command))
+      self.tooltip = true
+      return
     end
   end
+  if self.tooltip then
+    core.status_view:remove_tooltip()
+    self.tooltip = false
+  end
 end
 
 -- The toolbarview pane is not plugged here but it is added in the