Added in simple directory search to treeview. (#1110)

data/plugins/treeview.lua

@@ -467,7 +467,7 @@ view.node = node:split("left", view, {x = true}, true)
 -- plugin module that plug itself in the active node but it is plugged here
 -- in the treeview node.
 local toolbar_view = nil
-local toolbar_plugin, ToolbarView = core.try(require, "plugins.toolbarview")
+local toolbar_plugin, ToolbarView = pcall(require, "plugins.toolbarview")
 if config.plugins.toolbarview ~= false and toolbar_plugin then
   toolbar_view = ToolbarView()
   view.node:split("down", toolbar_view, {y = true})
@@ -819,6 +819,22 @@ command.add(function()
   end
 })
 
+local projectsearch = pcall(require, "plugins.projectsearch")
+if projectsearch then
+  menu:register(function()
+    return view.hovered_item and view.hovered_item.type == "dir"
+  end, { 
+    { text = "Find in directory", command = "treeview:search-in-directory" } 
+  })
+  command.add(function()
+    return view.hovered_item and view.hovered_item.type == "dir"
+  end, {
+    ["treeview:search-in-directory"] = function(item)
+      command.perform("project-search:find", view.hovered_item.abs_filename)
+    end
+  })
+end
+
 command.add(function()
     local item = treeitem()
     return item