feat(windows): close float mapping

See #43

README.md

@@ -86,6 +86,9 @@ require("dapui").setup({
   floating = {
     max_height = nil, -- These can be integers or a float between 0 and 1.
     max_width = nil, -- Floats will be treated as percentage of your screen.
+    mappings = {
+      close = { "q", "<Esc>" },
+    },
   },
   windows = { indent = 1 },
 })

lua/dapui/config/init.lua

@@ -17,6 +17,10 @@ M.actions = {
   REPL = "repl",
 }
 
+M.FLOAT_MAPPINGS = {
+  CLOSE = "close",
+}
+
 local default_config = {
   icons = { expanded = "▾", collapsed = "▸" },
   mappings = {
@@ -52,6 +56,9 @@ local default_config = {
   floating = {
     max_height = nil, -- These can be integers or a float between 0 and 1.
     max_width = nil, -- Floats will be treated as percentage of your screen.
+    mappings = {
+      [M.FLOAT_MAPPINGS.CLOSE] = { "q", "<Esc>" },
+    },
   },
   windows = { indent = 1 },
 }
@@ -83,6 +90,7 @@ end
 function M.setup(config)
   local filled = vim.tbl_deep_extend("keep", config or {}, default_config)
   filled.mappings = fill_mappings(filled.mappings)
+  filled.floating.mappings = fill_mappings(filled.floating.mappings)
   filled.sidebar = fill_elements(filled.sidebar)
   filled.tray = fill_elements(filled.tray)
   user_config = filled

lua/dapui/util.lua

@@ -104,7 +104,7 @@ end
 
 function M.apply_mapping(mappings, func, buffer)
   for _, key in pairs(mappings) do
-    vim.api.nvim_buf_set_keymap(buffer, "n", key, func, {})
+    vim.api.nvim_buf_set_keymap(buffer, "n", key, func, { noremap = true })
   end
 end
 

lua/dapui/windows/float.lua

@@ -1,4 +1,5 @@
 local M = {}
+local util = require("dapui.util")
 local api = vim.api
 local config = require("dapui.config")
 
@@ -92,6 +93,11 @@ function M.open_float(settings)
   local position = settings.position or { line = line_no, col = col_no }
   local opts = create_opts(settings.width, settings.height, position)
   local content_buffer = settings.buffer or api.nvim_create_buf(false, true)
+  util.apply_mapping(
+    config.floating().mappings[config.FLOAT_MAPPINGS.CLOSE],
+    "<Cmd>q<CR>",
+    content_buffer
+  )
   local content_window = api.nvim_open_win(content_buffer, false, opts)
 
   local output_win_id = api.nvim_win_get_number(content_window)