multicursors yay

lua/plugins/formatting.lua

@@ -16,7 +16,9 @@ return {
 				timeout_ms = 500,
 				lsp_fallback = true,
 			},
-		})
+        })
+
+        vim.o.formatexpr = "v:lua.require'conform'.formatexpr()"
 
 		conform.formatters.rustfmt = {
 			prepend_args = { "--config-path", "/home/albin/coding-projects/rustfmt.toml" },

lua/plugins/multicursors.lua

@@ -0,0 +1,76 @@
+return {
+    "jake-stewart/multicursor.nvim",
+    branch = "1.0",
+    config = function()
+        local mc = require("multicursor-nvim")
+        mc.setup()
+
+        local set = vim.keymap.set
+
+        -- Add or skip cursor above/below the main cursor.
+        set({"n", "x"}, "<up>", function() mc.lineAddCursor(-1) end)
+        set({"n", "x"}, "<down>", function() mc.lineAddCursor(1) end)
+        -- set({"n", "x"}, "<leader><up>", function() mc.lineSkipCursor(-1) end)
+        -- set({"n", "x"}, "<leader><down>", function() mc.lineSkipCursor(1) end)
+
+        -- Add or skip adding a new cursor by matching word/selection
+        set({"n", "x"}, "<C-j>", function() mc.matchAddCursor(1) end)
+        set({"n", "x"}, "<C-S-j>", function() mc.matchSkipCursor(1) end)
+        set({"n", "x"}, "<C-k>", function() mc.matchAddCursor(-1) end)
+        set({"n", "x"}, "<C-S-k>", function() mc.matchSkipCursor(-1) end)
+
+        -- Add and remove cursors with control + left click.
+        set("n", "<c-leftmouse>", mc.handleMouse)
+        set("n", "<c-leftdrag>", mc.handleMouseDrag)
+        set("n", "<c-leftrelease>", mc.handleMouseRelease)
+
+        -- Disable and enable cursors.
+        set({"n", "x"}, "<c-q>", mc.toggleCursor)
+
+        -- Mappings defined in a keymap layer only apply when there are
+        -- multiple cursors. This lets you have overlapping mappings.
+        mc.addKeymapLayer(function(layerSet)
+
+            -- Select a different cursor as the main one.
+            layerSet({"n", "x"}, "<left>", mc.prevCursor)
+            layerSet({"n", "x"}, "<right>", mc.nextCursor)
+
+            -- Delete the main cursor.
+            layerSet({"n", "x"}, "<leader>x", mc.deleteCursor)
+
+            -- Enable and clear cursors using escape.
+            layerSet("n", "<esc>", function()
+                if not mc.cursorsEnabled() then
+                    mc.enableCursors()
+                else
+                    mc.clearCursors()
+                end
+            end)
+        end)
+
+        -- Customize how cursors look.
+        local hl = vim.api.nvim_set_hl
+        hl(0, "MultiCursorCursor", { reverse = true, fg = "#aaaaff"})
+        hl(0, "MultiCursorVisual", { link = "Visual" })
+        hl(0, "MultiCursorSign", { link = "SignColumn"})
+        hl(0, "MultiCursorMatchPreview", { link = "Search" })
+        hl(0, "MultiCursorDisabledCursor", { reverse = true })
+        hl(0, "MultiCursorDisabledVisual", { link = "Visual" })
+        hl(0, "MultiCursorDisabledSign", { link = "SignColumn"})
+
+        -- Autocmds to change main cursor color when multicursors is active
+        vim.api.nvim_create_autocmd("User", {
+            pattern = "MultiCursorStart",
+            callback = function()
+                vim.api.nvim_set_hl(0, "Cursor", { bg = "#000000", fg = "#ffffff" }) -- bright red
+            end,
+        })
+
+        vim.api.nvim_create_autocmd("User", {
+            pattern = "MultiCursorExit",
+            callback = function()
+                vim.api.nvim_set_hl(0, "Cursor", { link = "Cursor" }) -- restore default
+            end,
+        })
+    end
+}