feat: add blink.cmp and disable custom completion pipeline

lua/core/keymap.lua

@@ -99,9 +99,7 @@ vim.keymap.set("n", "gr", "<Nop>")
 vim.cmd.aunmenu({ "PopUp.-1-" })
 vim.cmd.aunmenu({ "PopUp.How-to\\ disable\\ mouse" })
 
--- Insert-mode Emacs bindings
-vim.keymap.set("i", "<C-f>", "<Right>")
-vim.keymap.set("i", "<C-b>", "<Left>")
+-- Insert-mode Emacs bindings (C-f/C-b live further down inside hover_scroll_map)
 vim.keymap.set("i", "<C-a>", "<C-o>^")
 vim.keymap.set("i", "<C-e>", function()
     -- Fall through to Vim's default (close popup + revert) during completion.
@@ -160,8 +158,43 @@ vim.keymap.set("n", "K", function()
     vim.lsp.buf.hover({ max_width = 80 })
 end)
 vim.keymap.set({ "i", "s" }, "<C-s>", function()
+    local winid = vim.b.lsp_floating_preview
+    if winid and vim.api.nvim_win_is_valid(winid) then
+        vim.api.nvim_win_close(winid, false)
+        return
+    end
     vim.lsp.buf.signature_help({ max_width = 80 })
 end)
+
+---@param mode string | string[]
+---@param key string
+---@param direction "up" | "down"
+---@param count integer
+---@param fallback? string
+local function hover_scroll_map(mode, key, direction, count, fallback)
+    vim.keymap.set(mode, key, function()
+        local winid = vim.b.lsp_floating_preview
+        if not winid or not vim.api.nvim_win_is_valid(winid) then
+            return fallback or key
+        end
+        vim.schedule(function()
+            local scroll_key = direction == "down" and vim.keycode("<C-e>")
+                or vim.keycode("<C-y>")
+            vim.api.nvim_win_call(winid, function()
+                vim.cmd.normal({
+                    args = { count .. scroll_key },
+                    bang = true,
+                })
+            end)
+        end)
+        return ""
+    end, { expr = true, replace_keycodes = true })
+end
+hover_scroll_map({ "n", "s" }, "<C-f>", "down", 5)
+hover_scroll_map({ "n", "s" }, "<C-b>", "up", 5)
+hover_scroll_map("i", "<C-f>", "down", 5, "<Right>")
+hover_scroll_map("i", "<C-b>", "up", 5, "<Left>")
+
 ---@param key string
 ---@param dir 1 | -1
 local function snippet_jump_map(key, dir)
@@ -174,6 +207,7 @@ local function snippet_jump_map(key, dir)
 end
 snippet_jump_map("<Tab>", 1)
 snippet_jump_map("<S-Tab>", -1)
+
 vim.keymap.set({ "n", "i" }, "<C-h>", vim.lsp.buf.document_highlight)
 vim.keymap.set({ "n", "x" }, "<leader>lf", vim.lsp.buf.format)
 vim.keymap.set("n", "grl", function()

lua/lsp/completion/init.lua

@@ -6,16 +6,9 @@ local GROUP = vim.api.nvim_create_augroup("ow.lsp.completion", { clear = true })
 
 local popup = Popup.new()
 
-local M = {}
-
----@param capabilities lsp.ClientCapabilities
-function M.apply_capabilities(capabilities)
-    capabilities.textDocument.completion.completionItem.snippetSupport = true
-end
-
 ---@param client vim.lsp.Client
 ---@param buf integer
-function M.on_attach(client, buf)
+local function on_attach(client, buf)
     if
         not client:supports_method(
             vim.lsp.protocol.Methods.textDocument_completion
@@ -34,7 +27,29 @@ function M.on_attach(client, buf)
     })
 end
 
+local M = {}
+
 function M.setup()
+    vim.lsp.config("*", {
+        capabilities = {
+            textDocument = {
+                completion = {
+                    completionItem = { snippetSupport = true },
+                },
+            },
+        },
+    })
+
+    vim.api.nvim_create_autocmd("LspAttach", {
+        group = GROUP,
+        callback = function(ev)
+            local client = vim.lsp.get_client_by_id(ev.data.client_id)
+            if client then
+                on_attach(client, ev.buf)
+            end
+        end,
+    })
+
     vim.api.nvim_create_autocmd("CompleteChanged", {
         group = GROUP,
         callback = function(ev)

lua/lsp/init.lua

@@ -4,7 +4,6 @@
 ---@field context lsp.HandlerContext
 
 local codelens = require("lsp.codelens")
-local completion = require("lsp.completion")
 local diagnostic = require("lsp.diagnostic")
 local log = require("log")
 
@@ -43,8 +42,6 @@ local function on_attach(client, buf)
         client.settings
     ) or client.settings
 
-    completion.on_attach(client, buf)
-
     vim.api.nvim_clear_autocmds({ group = GROUP, buffer = buf })
     vim.api.nvim_create_autocmd("LspProgress", {
         buffer = buf,
@@ -91,8 +88,7 @@ function M.setup()
         "zls",
     })
 
-    local capabilities = vim.lsp.protocol.make_client_capabilities()
-    completion.apply_capabilities(capabilities)
+    local capabilities = require("blink.cmp").get_lsp_capabilities({}, true)
     vim.lsp.config("*", {
         capabilities = capabilities,
     })
@@ -107,7 +103,7 @@ function M.setup()
         end,
     })
 
-    completion.setup()
+    -- require("lsp.completion").setup()
     codelens.setup()
 
     vim.lsp.log.set_level(vim.log.levels.WARN)