initial commit

LICENSE

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+MIT License
+
+Copyright © 2023 Stephen Waits <steve@waits.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# zellij-nav.nvim
+
+This is a Neovim plugin which integrates window navigation with
+[zellij](https://github.com/zellij-org/zellij).
+
+It creates four new commands which will move between windows inside Neovim
+(like `^w h` et. al.), but once it hits the edge of your editor it will attempt
+to switch to the next zellij pane.
+
+Commands:
+
+- `ZellijNavigateLeft`
+- `ZellijNavigateDown`
+- `ZellijNavigateUp`
+- `ZellijNavigateRight`
+
+It also exports the lua versions, which you can call like this:
+
+- `require("zellij-nav").left()`
+- `require("zellij-nav").down()`
+- `require("zellij-nav").up()`
+- `require("zellij-nav").right()`
+
+This is written in the spirit of
+[vim-tmux-navigator](https://github.com/alexghergh/nvim-tmux-navigation/), but
+for zellij instead, while also staying as simple and lightweight as possible.
+
+## Installing
+
+### [lazy](https://github.com/folke/lazy.nvim) (recommended)
+
+```lua
+{
+  "https://git.sr.ht/~swaits/zellij-nav.nvim",
+  lazy = true,
+  event = "VeryLazy",
+  keys = {
+    { "<c-h>", "<cmd>ZellijNavigateLeft<cr>",  { silent = true, desc = "navigate left"  } },
+    { "<c-j>", "<cmd>ZellijNavigateDown<cr>",  { silent = true, desc = "navigate down"  } },
+    { "<c-k>", "<cmd>ZellijNavigateUp<cr>",    { silent = true, desc = "navigate up"    } },
+    { "<c-l>", "<cmd>ZellijNavigateRight<cr>", { silent = true, desc = "navigate right" } },
+  },
+  opts = {},
+}
+```
+
+### [pckr](https://github.com/lewis6991/pckr.nvim)
+
+```lua
+{
+  "https://git.sr.ht/~swaits/zellij-nav.nvim",
+  config = function()
+    require("zellij-nav").setup()
+
+    local map = vim.keymap.set
+    map("n", "<c-h>", "<cmd>ZellijNavigateLeft<cr>",  { desc = "navigate left"  })
+    map("n", "<c-j>", "<cmd>ZellijNavigateDown<cr>",  { desc = "navigate down"  })
+    map("n", "<c-k>", "<cmd>ZellijNavigateUp<cr>",    { desc = "navigate up"    })
+    map("n", "<c-l>", "<cmd>ZellijNavigateRight<cr>", { desc = "navigate right" })
+
+  end
+}
+```
+
+### [vim-plug](https://github.com/junegunn/vim-plug)
+
+```vim
+Plug 'https://git.sr.ht/~swaits/zellij-nav.nvim'
+lua require("zellij-nav").setup()
+
+nnoremap <c-h> <cmd>ZellijNavigateLeft<cr>
+nnoremap <c-j> <cmd>ZellijNavigateDown<cr>
+nnoremap <c-k> <cmd>ZellijNavigateUp<cr>
+nnoremap <c-l> <cmd>ZellijNavigateRight<cr>
+```
+
+## MIT License
+
+Copyright © 2023 Stephen Waits <steve@waits.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lua/zellij-nav/init.lua

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+local M = {}
+
+local function nav(short_direction, direction)
+	-- get window ID, try switching windows, and get ID again to see if it worked
+	local cur_winnr = vim.fn.winnr()
+	vim.api.nvim_command("wincmd " .. short_direction)
+	local new_winnr = vim.fn.winnr()
+
+	-- if the window ID didn't change, then we didn't switch
+	if cur_winnr == new_winnr then
+		vim.fn.system("zellij action move-focus " .. direction)
+		if vim.v.shell_error ~= 0 then
+			error("zellij executable not found in path")
+		end
+	end
+end
+
+function M.up()
+	nav("k", "up")
+end
+
+function M.down()
+	nav("j", "down")
+end
+
+function M.right()
+	nav("l", "right")
+end
+
+function M.left()
+	nav("h", "left")
+end
+
+-- create our exported setup() function
+function M.setup(opts)
+	-- create our commands
+	vim.api.nvim_create_user_command("ZellijNavigateUp", M.up, {})
+	vim.api.nvim_create_user_command("ZellijNavigateDown", M.down, {})
+	vim.api.nvim_create_user_command("ZellijNavigateLeft", M.left, {})
+	vim.api.nvim_create_user_command("ZellijNavigateRight", M.right, {})
+end
+
+return M