refacto: abstract TreeExplorer in core.lua

lua/nvim-tree/actions/movements.lua

@@ -2,6 +2,8 @@ local utils = require "nvim-tree.utils"
 local view = require "nvim-tree.view"
 local diagnostics = require "nvim-tree.diagnostics"
 local renderer = require "nvim-tree.renderer"
+local core = require "nvim-tree.core"
+
 local lib = function()
   return require "nvim-tree.lib"
 end
@@ -49,7 +51,7 @@ function M.parent_node(should_close)
       node.open = false
       altered_tree = true
     else
-      local line, parent = iter(TreeExplorer.nodes, true)
+      local line, parent = iter(core.get_explorer().nodes, true)
       if parent == nil then
         line = 1
       elseif should_close then
@@ -82,16 +84,16 @@ function M.sibling(direction)
     local parent, _
 
     -- Check if current node is already at root nodes
-    for index, _node in ipairs(TreeExplorer.nodes) do
+    for index, _node in ipairs(core.get_explorer().nodes) do
       if node_path == _node.absolute_path then
         line = index
       end
     end
 
     if line > 0 then
-      parent = TreeExplorer
+      parent = core.get_explorer()
     else
-      _, parent = iter(TreeExplorer.nodes, true)
+      _, parent = iter(core.get_explorer().nodes, true)
       if parent ~= nil and #parent.nodes > 1 then
         line, _ = get_line_from_node(node)(parent.nodes)
       end
@@ -108,7 +110,7 @@ function M.sibling(direction)
     end
     local target_node = parent.nodes[index]
 
-    line, _ = get_line_from_node(target_node)(TreeExplorer.nodes, true)
+    line, _ = get_line_from_node(target_node)(core.get_explorer().nodes, true)
     if not view.is_root_folder_visible() then
       line = line - 1
     end
@@ -119,7 +121,7 @@ end
 function M.find_git_item(where)
   return function()
     local node_cur = lib().get_node_at_cursor()
-    local nodes_by_line = lib().get_nodes_by_line(TreeExplorer.nodes, view.View.hide_root_folder and 1 or 2)
+    local nodes_by_line = lib().get_nodes_by_line(core.get_explorer().nodes, view.View.hide_root_folder and 1 or 2)
 
     local cur, first, prev, nex = nil, nil, nil, nil
     for line, node in pairs(nodes_by_line) do