feat: add tabnew command for opening via a new tab. (#233)

Author: tylersaunders

README.md

@@ -128,6 +128,7 @@ use {
             ["<cr>"] = "open",
             ["S"] = "open_split",
             ["s"] = "open_vsplit",
+            ["t"] = "open_tabnew",
             ["C"] = "close_node",
             ["<bs>"] = "navigate_up",
             ["."] = "set_root",

doc/neo-tree.txt

@@ -156,7 +156,9 @@ Note: The "selected" item is the line the cursor is currently on.
 
 S             = open_split:  Same as open, but opens in a new horizontal split.
 
-s             = open_vsplit: Same as open, but opens in a vertical split
+s             = open_vsplit: Same as open, but opens in a vertical split.
+
+t             = open_tabnew: Same as open, but opens in a new tab.
 
 <bs>          = navigate_up: Moves the root directory up one level.
 
@@ -743,7 +745,7 @@ Fired after a file (or folder) has been moved. The arg is a table containing
 Fired just before a file is opened. The arg is a table containing the `state`
 of the source being used, the `path` of the file to be opened, and `open_cmd`,
 which is the open command that was requested. `open_cmd` will be either |edit|,
-|split|, or |vsplit|. This function should return a table with a property called
+|split|, |vsplit|, |tabnew|. This function should return a table with a property called
 `handled` which is true if the file open operation was handled, or false if it
 was not. If `{ handled = true }` is not returned, the file will be opened using
 the built-in logic.

lua/neo-tree/defaults.lua

@@ -180,6 +180,7 @@ local config = {
       ["<cr>"] = "open",
       ["S"] = "open_split",
       ["s"] = "open_vsplit",
+      ["t"] = "open_tabnew",
       ["C"] = "close_node",
       ["z"] = "close_all_nodes",
       ["R"] = "refresh",

lua/neo-tree/sources/buffers/commands.lua

@@ -69,6 +69,7 @@ end
 M.open = cc.open
 M.open_split = cc.open_split
 M.open_vsplit = cc.open_vsplit
+M.open_tabnew = cc.open_tabnew
 
 M.refresh = refresh
 

lua/neo-tree/sources/common/commands.lua

@@ -235,6 +235,14 @@ M.open_vsplit = function(state, toggle_directory)
   open_with_cmd(state, "vsplit", toggle_directory)
 end
 
+---Open file or directory in a new tab
+---@param state table The state of the source
+---@param toggle_directory function The function to call to toggle a directory
+---open/closed
+M.open_tabnew = function (state, toggle_directory)
+  open_with_cmd(state, "tabnew", toggle_directory) 
+end
+
 M.rename = function(state, callback)
   local tree = state.tree
   local node = tree:get_node()

lua/neo-tree/sources/filesystem/commands.lua

@@ -94,6 +94,9 @@ end
 M.open_vsplit = function(state)
   cc.open_vsplit(state, utils.wrap(fs.toggle_directory, state))
 end
+M.open_tabnew = function (state)
+  cc.open_tabnew(state, utils.wrap(fs.toggle_directory, state))
+end
 
 M.refresh = refresh
 

lua/neo-tree/sources/git_status/commands.lua

@@ -134,6 +134,7 @@ end
 M.open = cc.open
 M.open_split = cc.open_split
 M.open_vsplit = cc.open_vsplit
+M.open_tabnew = cc.open_tabnew
 
 M.refresh = refresh