feat nvim: add smooth scroll

dot_config/exact_nvim/exact_lua/exact_plugins/scroll.lua

@@ -0,0 +1,76 @@
+return {
+  -- { "psliwka/vim-smoothie" },
+  { "karb94/neoscroll.nvim",
+    cond = function()
+      -- 如果是在 GUI（如 NeoVide、Goneovim）中，則不啟用插件
+      if vim.g.neovide or vim.fn.has("goneovim") == 1 or vim.fn.has("gui_running") == 1 then
+        return false
+      end
+
+      -- 獲取 TERM 環境變數
+      local term = vim.fn.getenv("TERM")
+      -- 檢查是否是常見的文字終端
+      local is_terminal = term and (term:match("xterm") or term:match("screen") or term:match("tmux") or term:match("linux"))
+
+      -- 如果是文字終端，則啟用插件
+      return is_terminal ~= nil
+    end,
+    opts = {
+      mappings = {                 -- Keys to be mapped to their corresponding default scrolling animation
+        '<C-u>', '<C-d>',
+        '<C-b>', '<C-f>',
+        '<C-y>', '<C-e>',
+        'zt', 'zz', 'zb',
+      },
+      hide_cursor = true,          -- Hide cursor while scrolling
+      stop_eof = true,             -- Stop at <EOF> when scrolling downwards
+      respect_scrolloff = false,   -- Stop scrolling when the cursor reaches the scrolloff margin of the file
+      cursor_scrolls_alone = true, -- The cursor will keep on scrolling even if the window cannot scroll further
+      duration_multiplier = 1.0,   -- Global duration multiplier
+      easing = 'linear',           -- Default easing function
+      pre_hook = nil,              -- Function to run before the scrolling animation starts
+      post_hook = nil,             -- Function to run after the scrolling animation ends
+      performance_mode = false,    -- Disable "Performance Mode" on all buffers.
+      ignored_events = {           -- Events ignored while scrolling
+          'WinScrolled', 'CursorMoved'
+      },
+    },
+    config = function(_, opts)
+      local neoscroll = require("neoscroll")
+
+      -- 增加對<PageUp>與<PageDown>的支持
+      local scroll_up = function()
+        neoscroll.scroll(-vim.wo.scroll, { move_cursor = true, duration = 100 })
+      end
+      local scroll_down = function()
+        neoscroll.scroll(vim.wo.scroll, { move_cursor = true, duration = 100 })
+      end
+      -- Normal 模式
+      vim.keymap.set("n", "<PageUp>", scroll_up, { silent = true })
+      vim.keymap.set("n", "<PageDown>", scroll_down, { silent = true })
+      -- Insert 模式
+      vim.keymap.set("i", "<PageUp>", function()
+        vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes("<Esc>", true, false, true), "n", true)
+        scroll_up()
+        vim.api.nvim_feedkeys("i", "n", true)
+      end, { silent = true })
+      vim.keymap.set("i", "<PageDown>", function()
+        vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes("<Esc>", true, false, true), "n", true)
+        scroll_down()
+        vim.api.nvim_feedkeys("i", "n", true)
+      end, { silent = true })
+    end
+
+    -- config = function()
+    --   require("neoscroll").setup({
+    --     mappings = { "<C-u>", "<C-d>", "<C-b>", "<C-f>", "<C-y>", "<C-e>" },
+    --     hide_cursor = true, -- Hide cursor while scrolling
+    --     stop_eof = true, -- Stop at <EOF> when scrolling downwards
+    --     respect_scrolloff = true, -- Stop scrolling when the cursor reaches the scrolloff margin of the file
+    --     cursor_scrolls_alone = true, -- The cursor will keep on scrolling even if the window cannot scroll anymore
+    --     pre_hook = nil, -- Function to run before the scrolling animation starts
+    --     post_hook = nil, -- Function to run after the scrolling animation ends
+    --   })
+    -- end
+  }
+}