From 3ba4441b9ff5a648dfd01c4837f8b08cda0789b6 Mon Sep 17 00:00:00 2001
From: Yigit Colakoglu <yigit@yigitcolakoglu.com>
Date: Fri, 29 Dec 2023 20:02:01 +0100
Subject: [PATCH] Devdocs support

---
 .config/nvim/lua/config/plugin/nvim-cmp.lua   | 47 +++++++++++++++----
 .../nvim/lua/config/plugin/nvim-devdocs.lua   | 17 +++++++
 .config/nvim/lua/keybinds/plugin.lua          |  6 +++
 .config/nvim/lua/keybinds/telescope.lua       |  5 ++
 .config/nvim/lua/plugins.lua                  |  9 ++++
 5 files changed, 74 insertions(+), 10 deletions(-)
 create mode 100644 .config/nvim/lua/config/plugin/nvim-devdocs.lua

diff --git a/.config/nvim/lua/config/plugin/nvim-cmp.lua b/.config/nvim/lua/config/plugin/nvim-cmp.lua
index 55295fc2..1c1ab3ce 100644
--- a/.config/nvim/lua/config/plugin/nvim-cmp.lua
+++ b/.config/nvim/lua/config/plugin/nvim-cmp.lua
@@ -1,5 +1,12 @@
+local has_words_before = function()
+  unpack = unpack or table.unpack
+  local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+  return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
+end
+
 return function()
   local cmp = require'cmp'
+  local snippy = require("snippy")
   local lspkind = require('lspkind')
 
   cmp.setup({
@@ -17,18 +24,38 @@ return function()
       ['<C-f>'] = cmp.mapping.scroll_docs(4),
       ['<C-Space>'] = cmp.mapping.complete(),
       ['<C-e>'] = cmp.mapping.abort(),
-      ["<Tab>"] = cmp.mapping(function(fallback)
-          if cmp.visible() then
-            local entry = cmp.get_selected_entry()
-          if not entry then
-            cmp.select_next_item({ behavior = cmp.SelectBehavior.Select })
+      ["<CR>"] = cmp.mapping({
+        i = function(fallback)
+          if cmp.visible() and cmp.get_active_entry() then
+            cmp.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false })
           else
-            cmp.confirm()
+            fallback()
           end
-              else
-                fallback()
-              end
-        end, {"i","s","c",}),
+        end,
+        s = cmp.mapping.confirm({ select = false }),
+        c = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false }),
+      }),
+      ["<Tab>"] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+          cmp.select_next_item()
+        elseif snippy.can_expand_or_advance() then
+          snippy.expand_or_advance()
+        elseif has_words_before() then
+          cmp.complete()
+        else
+          fallback()
+        end
+      end, { "i", "s" }),
+
+      ["<S-Tab>"] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+          cmp.select_prev_item()
+        elseif snippy.can_jump(-1) then
+          snippy.previous()
+        else
+          fallback()
+        end
+      end, { "i", "s" }),
     }),
     sources = cmp.config.sources({
       { name = "copilot" },
diff --git a/.config/nvim/lua/config/plugin/nvim-devdocs.lua b/.config/nvim/lua/config/plugin/nvim-devdocs.lua
new file mode 100644
index 00000000..9dfb4759
--- /dev/null
+++ b/.config/nvim/lua/config/plugin/nvim-devdocs.lua
@@ -0,0 +1,17 @@
+return function ()
+  require('nvim-devdocs').setup({
+      float_win = {
+        relative = "editor",
+        height = 50,
+        width = 170,
+        border = "rounded",
+      },
+      wrap = false,
+      previewer_cmd = "glow",
+      cmd_args = { "-s", "dark", "-w", "80" },
+      after_open = function(bufnr)
+      vim.api.nvim_buf_set_keymap(bufnr, 'n', '<Esc>', ':close<CR>', {})
+    end
+  })
+end
+
diff --git a/.config/nvim/lua/keybinds/plugin.lua b/.config/nvim/lua/keybinds/plugin.lua
index 65332204..ebcf6ace 100644
--- a/.config/nvim/lua/keybinds/plugin.lua
+++ b/.config/nvim/lua/keybinds/plugin.lua
@@ -57,5 +57,11 @@ map('n', '<Leader>G', "<Cmd> Neogit<CR>", {
   desc = "Open Neogit"
 })
 
+map('n', '<Leader>lz', "<Cmd>DevdocsOpenFloat<CR>", {
+  noremap = true,
+  desc = "Open devdocs viewer"
+})
+
+
 vim.keymap.set("n", "<C-e>", function() toggle_telescope(harpoon:list()) end,
     { desc = "Open harpoon window" })
diff --git a/.config/nvim/lua/keybinds/telescope.lua b/.config/nvim/lua/keybinds/telescope.lua
index 2e91196c..7205e4d8 100644
--- a/.config/nvim/lua/keybinds/telescope.lua
+++ b/.config/nvim/lua/keybinds/telescope.lua
@@ -41,6 +41,11 @@ map('n', '<Leader>lw', "<Cmd>lua require('telescope.builtin').diagnostics()<CR>"
   desc = "List diagnostic items"
 })
 
+map('n', '<Leader>lm', "<Cmd>lua require('telescope.builtin').man_pages()<CR>", {
+  noremap = true,
+  desc = "List view manpage"
+})
+
 map('n', '<Leader><Space>', "<Cmd>lua vim.lsp.buf.code_action()<CR>", {
   noremap = true,
   desc = "Pick code action"
diff --git a/.config/nvim/lua/plugins.lua b/.config/nvim/lua/plugins.lua
index f2a083dc..7ad583a3 100644
--- a/.config/nvim/lua/plugins.lua
+++ b/.config/nvim/lua/plugins.lua
@@ -275,5 +275,14 @@ return {
       "mfussenegger/nvim-dap",
     },
     opts = {}
+  },
+  {
+    "luckasRanarison/nvim-devdocs",
+    dependencies = {
+      "nvim-lua/plenary.nvim",
+      "nvim-telescope/telescope.nvim",
+      "nvim-treesitter/nvim-treesitter",
+    },
+    config = require("config.plugin.nvim-devdocs")
   }
 }