feat(marks): add navigation (next, previous, select) (#1415)

Author: kyazdani42

doc/nvim-tree-lua.txt

@@ -1264,4 +1264,16 @@ default.
 To get the list of marked paths, you can call
 `require("nvim-tree.marks").get_marks()`. This will return `{node}`.
 
+*nvim-tree.bookmarks.navigation*
+
+Navigation for marks is not bound by default in nvim-tree because we don't
+want to focus the tree view each time we wish to switch to another mark.
+
+This requires binding bookmark navigation yourself.
+
+-- in your lua configuration
+vim.keymap.set("n", "<leader>mn", require("nvim-tree.marks.navigation").next)
+vim.keymap.set("n", "<leader>mp", require("nvim-tree.marks.navigation").prev)
+vim.keymap.set("n", "<leader>ms", require("nvim-tree.marks.navigation").select)
+
  vim:tw=78:ts=4:sw=4:et:ft=help:norl:

lua/nvim-tree/actions/node/open-file.lua

@@ -220,17 +220,6 @@ local function open_in_new_window(filename, mode, win_ids)
   lib.set_target_win()
 end
 
-local function is_already_open(filename, win_ids)
-  for _, id in ipairs(win_ids) do
-    if filename == api.nvim_buf_get_name(api.nvim_win_get_buf(id)) then
-      api.nvim_set_current_win(id)
-      return true
-    end
-  end
-
-  return false
-end
-
 local function is_already_loaded(filename)
   for _, buf_id in ipairs(api.nvim_list_bufs()) do
     if api.nvim_buf_is_loaded(buf_id) and filename == api.nvim_buf_get_name(buf_id) then
@@ -258,7 +247,7 @@ function M.fn(mode, filename)
   local win_ids = api.nvim_tabpage_list_wins(tabpage)
   local buf_loaded = is_already_loaded(filename)
 
-  local found = is_already_open(filename, win_ids)
+  local found = utils.is_in_displayed_buffer(filename)
   if found and mode == "preview" then
     return
   end

lua/nvim-tree/marks/navigation.lua

@@ -0,0 +1,93 @@
+local Iterator = require "nvim-tree.iterators.node-iterator"
+local core = require "nvim-tree.core"
+local Marks = require "nvim-tree.marks"
+local open_file = require "nvim-tree.actions.node.open-file"
+local utils = require "nvim-tree.utils"
+local lib = require "nvim-tree.lib"
+
+local function get_nearest(node, where)
+  local first, prev, next, last = nil, nil, nil, nil
+  local found = false
+
+  Iterator.builder(core.get_explorer().nodes)
+    :recursor(function(n)
+      return n.open and n.nodes
+    end)
+    :applier(function(n)
+      if n.absolute_path == node.absolute_path then
+        found = true
+        return
+      end
+
+      if not Marks.get_mark(n) then
+        return
+      end
+
+      last = n
+      first = first or n
+
+      if found and not next then
+        next = n
+      end
+
+      if not found then
+        prev = n
+      end
+    end)
+    :iterate()
+
+  if not found then
+    return
+  end
+
+  if where == "next" then
+    return next or first
+  else
+    return prev or last
+  end
+end
+
+local function get(where, node)
+  if node then
+    return get_nearest(node, where)
+  end
+end
+
+local function open_or_focus(node)
+  if node and not node.nodes and not utils.is_in_displayed_buffer(node.absolute_path) then
+    open_file.fn("edit", node.absolute_path)
+  elseif node then
+    utils.focus_file(node.absolute_path)
+  end
+end
+
+local function navigate_to(where)
+  return function()
+    local node = lib.get_node_at_cursor()
+    local next = get(where, node)
+    open_or_focus(next)
+  end
+end
+
+local M = {}
+
+M.next = navigate_to "next"
+M.prev = navigate_to "prev"
+
+function M.select()
+  local list = vim.tbl_map(function(n)
+    return n.absolute_path
+  end, Marks.get_marks())
+
+  vim.ui.select(list, {
+    prompt = "Select a file to open or a folder to focus",
+  }, function(choice)
+    if not choice or choice == "" then
+      return
+    end
+    local node = Marks.get_mark { absolute_path = choice }
+    open_or_focus(node)
+  end)
+end
+
+return M

lua/nvim-tree/utils.lua

@@ -335,4 +335,14 @@ function M.focus_file(path)
   require("nvim-tree.view").set_cursor { i + 1, 1 }
 end
 
+function M.is_in_displayed_buffer(path)
+  for _, w in pairs(vim.api.nvim_tabpage_list_wins(0)) do
+    local b = vim.api.nvim_win_get_buf(w)
+    if vim.api.nvim_buf_get_name(b) == path then
+      return true
+    end
+  end
+  return false
+end
+
 return M