diff --git a/changelog.md b/changelog.md
new file mode 100644
index 0000000..e623869
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,11 @@
+# Change Logs
+## 2023-12-07
+- [x]  Changed key maps
+    - Add fallback to key maps e.g. if `gD` does not find a type declaraion, it will fallback to `gD`
+      which is default key map go to global declaration
+  - `gt`: removed `gt` mapping and prefer `<space>D`
+
+- [ ]  Changed key maps
+  I plan to change the mapping for following key maps as it conflicts with other vim default key maps
+    - `gp`: changed to `<Leader>gp`
+  - `gP`: changed to `<Leader>gP`
diff --git a/lua/navigator.lua b/lua/navigator.lua
index 8862c98..f629546 100644
--- a/lua/navigator.lua
+++ b/lua/navigator.lua
@@ -35,7 +35,7 @@ _NgConfigValues = {
     enable = false,
     comment = true, -- ts fold text object
     max_lines_scan_comments = 2000, -- maximum lines to scan for comments
-    disable_filetypes = {'help', 'text', 'markdown'}, -- disable ts fold for specific filetypes
+    disable_filetypes = { 'help', 'text', 'markdown' }, -- disable ts fold for specific filetypes
   },
   treesitter_analysis = true, -- treesitter variable context
   treesitter_navigation = true, -- bool|table
@@ -242,7 +242,7 @@ M.deprecated = function(cfg)
   if cfg.lsp and cfg.lsp.sumneko_lua then
     warn('sumneko_lua option deprecated, refer to README for more details')
   end
-  if cfg.ts_fold ~= nil and type(cfg.ts_fold) == "boolean" then
+  if cfg.ts_fold ~= nil and type(cfg.ts_fold) == 'boolean' then
     warn('ts_fold option changed, refer to README for more details')
     cfg.ts_fold = { enable = cfg.ts_fold }
   end
@@ -327,7 +327,6 @@ local extend_config = function(opts)
   -- if _NgConfigValues.sumneko_root_path or _NgConfigValues.sumneko_binary then
   --   vim.notify("Please put sumneko setup in lsp['lua_ls']", vim.log.levels.WARN)
   -- end
-
 end
 
 M.config_values = function()
@@ -381,7 +380,7 @@ M.setup = function(cfg)
       _NgConfigValues.loaded = true
     end
 
-    if _NgConfigValues.ts_fold.enable == true and not vim.tbl_contains(_NgConfigValues.ts_fold.disable_filetypes, vim.o.filetype) then
+    if _NgConfigValues.ts_fold.enable == true and not vim.tbl_contains(_NgConfigValues.ts_fold.disable_filetypes, vim.o.filetype) and not vim.wo.diff then
       require('navigator.foldts').on_attach()
     end
 
diff --git a/lua/navigator/definition.lua b/lua/navigator/definition.lua
index 3272a35..e13cb79 100644
--- a/lua/navigator/definition.lua
+++ b/lua/navigator/definition.lua
@@ -7,7 +7,6 @@ local trace = util.trace
 local TextView = require('guihua.textview')
 -- callback for lsp definition, implementation and declaration handler
 local definition_hdlr = function(err, locations, ctx, _)
-  -- log(locations)
   if err ~= nil then
     if tostring(err):find('no type definition') or tostring(err):find('invalid range') then
       vim.notify('Definition: ' .. tostring(err), vim.log.levels.DEBUG)
@@ -18,11 +17,9 @@ local definition_hdlr = function(err, locations, ctx, _)
     vim.notify('Defination: ' .. tostring(err) .. vim.inspect(ctx), vim.log.levels.WARN)
     return
   end
-  if type(locations) == 'number' then
+  if locations == nil or vim.tbl_isempty(locations) or type(locations) == 'number' then
     log(locations)
     log('unable to handle request')
-  end
-  if locations == nil or vim.tbl_isempty(locations) then
     vim.notify('Definition not found')
     return
   end
@@ -50,8 +47,9 @@ local definition_hdlr = function(err, locations, ctx, _)
       end
     end
   else
-    vim.lsp.util.jump_to_location(locations, oe)
+    return
   end
+  return true
 end
 
 local function get_symbol()
@@ -67,10 +65,13 @@ local function def_preview(timeout_ms, method)
 
   if result == nil or vim.tbl_isempty(result) then
     vim.notify('No result found: ' .. method, vim.log.levels.WARN)
-    return nil
+    return
   end
 
   log(result)
+  if not vim.tbl_islist(result) then
+    return
+  end
   local data = {}
   -- result = {vim.tbl_deep_extend("force", {}, unpack(result))}
   -- log("def-preview", result)
@@ -82,7 +83,7 @@ local function def_preview(timeout_ms, method)
 
   if vim.tbl_isempty(data) then
     vim.notify('No result found: ' .. method, vim.log.levels.WARN)
-    return nil
+    return
   end
 
   local range = data[1].targetRange or data[1].range or data[1].targetSelectionRange
@@ -101,6 +102,9 @@ local function def_preview(timeout_ms, method)
   end
 
   local ok, parsers = pcall(require, 'nvim-treesitter.parsers')
+  if not ok then
+    return
+  end
 
   -- TODO: 32/64 should be an option
   local lines_num = 64
@@ -176,6 +180,7 @@ local function def_preview(timeout_ms, method)
     -- log(def_line[1], niddle)
     vim.fn.matchadd('Search', niddle)
   end
+  return true -- disable key-remap fallback
   -- TODO:
   -- https://github.com/oblitum/goyo.vim/blob/master/autoload/goyo.vim#L108-L135
 end
diff --git a/lua/navigator/lspclient/clients.lua b/lua/navigator/lspclient/clients.lua
index ff8aeb2..1d53495 100644
--- a/lua/navigator/lspclient/clients.lua
+++ b/lua/navigator/lspclient/clients.lua
@@ -43,6 +43,8 @@ local disabled_ft = {
   'notify',
   'nofile',
   'help',
+  'dap-*',
+  'dapui_*',
   '',
 }
 -- local cap = vim.lsp.protocol.make_client_capabilities()
@@ -500,6 +502,12 @@ local function ft_disabled(ft)
     if ft == disabled_ft[i] then
       return true
     end
+    if disabled_ft[i]:find('*') then
+      local pattern = disabled_ft[i]:gsub('*', '')
+      if ft:find(pattern) then
+        return true
+      end
+    end
   end
 end
 local ft_map = {
@@ -561,6 +569,7 @@ local function setup(user_opts)
     trace('navigator disabled for ft or it is loaded', ft)
     return
   end
+
   if _NgConfigValues.lsp.servers then
     add_servers(_NgConfigValues.lsp.servers)
     _NgConfigValues.lsp.servers = nil
diff --git a/lua/navigator/lspclient/inlay.lua b/lua/navigator/lspclient/inlay.lua
new file mode 100644
index 0000000..21ab2fa
--- /dev/null
+++ b/lua/navigator/lspclient/inlay.lua
@@ -0,0 +1,68 @@
+local log = require('vim.lsp.log')
+local util = require('vim.lsp.util')
+local api = vim.api
+local bufstates = {}
+return {
+  on_inlayhint = function(err, result, ctx, _)
+    if err then
+      if log.error() then
+        log.error('inlayhint', err)
+      end
+      return
+    end
+    local bufnr = assert(ctx.bufnr)
+    if util.buf_versions[bufnr] ~= ctx.version then
+      return
+    end
+    local client_id = ctx.client_id
+    if not result then
+      return
+    end
+    local bufstate = bufstates[bufnr]
+    if not bufstate or not bufstate.enabled then
+      return
+    end
+    if not (bufstate.client_hint and bufstate.version) then
+      bufstate.client_hint = vim.defaulttable()
+      bufstate.version = ctx.version
+    end
+    local hints_by_client = bufstate.client_hint
+    local client = assert(vim.lsp.get_client_by_id(client_id))
+
+    local new_hints_by_lnum = vim.defaulttable()
+    local num_unprocessed = #result
+    if num_unprocessed == 0 then
+      hints_by_client[client_id] = {}
+      bufstate.version = ctx.version
+      api.nvim__buf_redraw_range(bufnr, 0, -1)
+      return
+    end
+
+    local lines = api.nvim_buf_get_lines(bufnr, 0, -1, false)
+    ---@param position lsp.Position
+    ---@return integer
+    local function pos_to_byte(position)
+      local col = position.character
+      if col > 0 then
+        local line = lines[position.line + 1] or ''
+        local ok, convert_result
+        ok, convert_result = pcall(util._str_byteindex_enc, line, col, client.offset_encoding)
+        if ok then
+          return convert_result
+        end
+        return math.min(#line, col)
+      end
+      return col
+    end
+
+    for _, hint in ipairs(result) do
+      local lnum = hint.position.line
+      hint.position.character = pos_to_byte(hint.position)
+      table.insert(new_hints_by_lnum[lnum], hint)
+    end
+
+    hints_by_client[client_id] = new_hints_by_lnum
+    bufstate.version = ctx.version
+    api.nvim__buf_redraw_range(bufnr, 0, -1)
+  end,
+}
diff --git a/lua/navigator/lspclient/mapping.lua b/lua/navigator/lspclient/mapping.lua
index 7e98758..e6aed28 100644
--- a/lua/navigator/lspclient/mapping.lua
+++ b/lua/navigator/lspclient/mapping.lua
@@ -10,52 +10,69 @@ end
 if vim.diagnostic == nil then
   util.error('Please update nvim to 0.6.1+')
 end
+
+local function fallback_keymap(key)
+  -- when handler failed fallback to key
+  vim.schedule(function()
+    print('fallback to key', key)
+    vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), 'n', true)
+  end)
+end
+
+local function fallback_fn(key)
+  return function()
+    fallback_keymap(key)
+  end
+end
+
 local double = { '╔', '═', '╗', '║', '╝', '═', '╚', '║' }
 local single = { '╭', '─', '╮', '│', '╯', '─', '╰', '│' }
+local remap = util.binding_remap
 -- stylua: ignore start
 local key_maps = {
-  { key = 'gr', func = require('navigator.reference').async_ref, desc = 'async_ref' },
-  { key = '<Leader>gr', func = require('navigator.reference').reference, desc = 'reference' }, -- reference deprecated
-  { mode = 'i', key = '<M-k>', func = vim.lsp.buf.signature_help, desc = 'signature_help' },
-  { key = '<c-k>', func = vim.lsp.buf.signature_help, desc = 'signature_help' },
-  { key = 'g0', func = require('navigator.symbols').document_symbols, desc = 'document_symbols' },
-  { key = 'gW', func = require('navigator.workspace').workspace_symbol_live, desc = 'workspace_symbol_live' },
-  { key = '<c-]>', func = require('navigator.definition').definition, desc = 'definition' },
-  { key = 'gd', func = require('navigator.definition').definition, desc = 'definition' },
-  { key = 'gD', func = vim.lsp.buf.declaration, desc = 'declaration' },
-  { key = 'gt', func = vim.lsp.buf.type_definition, desc = 'type_definition' },
-  { key = 'gp', func = require('navigator.definition').definition_preview, desc = 'definition_preview' },
-  { key = 'gP', func = require('navigator.definition').type_definition_preview, desc = 'type_definition_preview' },
-  { key = '<Leader>gt', func = require('navigator.treesitter').buf_ts, desc = 'buf_ts' },
-  { key = '<Leader>gT', func = require('navigator.treesitter').bufs_ts, desc = 'bufs_ts' },
-  { key = '<Leader>ct', func = require('navigator.ctags').ctags, desc = 'ctags' },
-  { key = '<Space>ca', mode = 'n', func = require('navigator.codeAction').code_action, desc = 'code_action' },
-  { key = '<Space>ca', mode = 'v', func = require('navigator.codeAction').range_code_action, desc = 'range_code_action' },
+  { key = 'gr',            func = require('navigator.reference').async_ref,                             desc = 'async_ref' },
+  { key = '<Leader>gr',    func = require('navigator.reference').reference,                             desc = 'reference' }, -- reference deprecated
+  { mode = 'i',            key = '<M-k>',                                                               func = vim.lsp.buf.signature_help,                        desc = 'signature_help' },
+  { key = '<c-k>',         func = vim.lsp.buf.signature_help,                                           desc = 'signature_help' },
+  { key = '<Leader>g0',    func = require('navigator.symbols').document_symbols,                        desc = 'document_symbols' },
+  { key = 'gW',            func = require('navigator.workspace').workspace_symbol_live,                 desc = 'workspace_symbol_live' },
+  { key = '<c-]>',         func = require('navigator.definition').definition,                           desc = 'definition' },
+  { key = 'gd',            func = remap(require('navigator.definition').definition, 'gd'),              desc = 'definition' },
+  { key = 'gD',            func = vim.lsp.buf.declaration,                                              desc = 'declaration',                                     fallback = fallback_fn('gD') }, -- fallback used
+  -- for lsp handler
+  { key = 'gp',            func = remap(require('navigator.definition').definition_preview, 'gp'),      desc = 'definition_preview' }, -- paste
+  { key = 'gP',            func = remap(require('navigator.definition').type_definition_preview, 'gP'), desc = 'type_definition_preview' }, -- paste
+  { key = '<Leader>gt',    func = require('navigator.treesitter').buf_ts,                               desc = 'buf_ts' },
+  { key = '<Leader>gT',    func = require('navigator.treesitter').bufs_ts,                              desc = 'bufs_ts' },
+  { key = '<Leader>ct',    func = require('navigator.ctags').ctags,                                     desc = 'ctags' },
+  { key = '<Space>ca',     mode = 'n',                                                                  func = require('navigator.codeAction').code_action,       desc = 'code_action' },
+  { key = '<Space>ca',     mode = 'v',                                                                  func = require('navigator.codeAction').range_code_action, desc = 'range_code_action' },
   -- { key = '<Leader>re', func = 'rename()' },
-  { key = '<Space>rn', func = require('navigator.rename').rename, desc = 'rename' },
-  { key = '<Leader>gi', func = vim.lsp.buf.incoming_calls, desc = 'incoming_calls' },
-  { key = '<Leader>go', func = vim.lsp.buf.outgoing_calls, desc = 'outgoing_calls' },
-  { key = 'gi', func = vim.lsp.buf.implementation, desc = 'implementation' },
-  { key = '<Space>D', func = vim.lsp.buf.type_definition, desc = 'type_definition' },
-  { key = 'gL', func = require('navigator.diagnostics').show_diagnostics, desc = 'show_diagnostics' },
-  { key = 'gG', func = require('navigator.diagnostics').show_buf_diagnostics, desc = 'show_buf_diagnostics' },
-  { key = '<Leader>dt', func = require('navigator.diagnostics').toggle_diagnostics, desc = 'toggle_diagnostics' },
-  { key = ']d', func = vim.diagnostic.goto_next, desc = 'next diagnostics' },
-  { key = '[d', func = vim.diagnostic.goto_prev, desc = 'prev diagnostics' },
-  { key = ']O', func = vim.diagnostic.set_loclist, desc = 'diagnostics set loclist' },
-  { key = ']r', func = require('navigator.treesitter').goto_next_usage, desc = 'goto_next_usage' },
-  { key = '[r', func = require('navigator.treesitter').goto_previous_usage, desc = 'goto_previous_usage' },
-  { key = '<C-LeftMouse>', func = vim.lsp.buf.definition, desc = 'definition' },
-  { key = 'g<LeftMouse>', func = vim.lsp.buf.implementation, desc = 'implementation' },
-  { key = '<Leader>k', func = require('navigator.dochighlight').hi_symbol, desc = 'hi_symbol' },
-  { key = '<Space>wa', func = require('navigator.workspace').add_workspace_folder, desc = 'add_workspace_folder' },
-  { key = '<Space>wr', func = require('navigator.workspace').remove_workspace_folder, desc = 'remove_workspace_folder' },
-  { key = '<Space>ff', func = vim.lsp.buf.format, mode = 'n', desc = 'format' },
-  { key = '<Space>ff', func = vim.lsp.buf.range_formatting, mode = 'v', desc = 'range format' },
-  { key = '<Space>gm', func = require('navigator.formatting').range_format, mode = 'n', desc = 'range format operator e.g gmip' },
-  { key = '<Space>wl', func = require('navigator.workspace').list_workspace_folders, desc = 'list_workspace_folders' },
+  { key = '<Space>rn',     func = require('navigator.rename').rename,                                   desc = 'rename' },
+  { key = '<Leader>gi',    func = vim.lsp.buf.incoming_calls,                                           desc = 'incoming_calls' },
+  { key = '<Leader>go',    func = vim.lsp.buf.outgoing_calls,                                           desc = 'outgoing_calls' },
+  { key = 'gi',            func = vim.lsp.buf.implementation, desc = 'implementation',  fallback = fallback_fn('gi') }, -- insert
+  { key = '<Space>D',      func = vim.lsp.buf.type_definition,                                          desc = 'type_definition' },
+  { key = 'gL',            func = require('navigator.diagnostics').show_diagnostics,                    desc = 'show_diagnostics' },
+  { key = 'gG',            func = require('navigator.diagnostics').show_buf_diagnostics,                desc = 'show_buf_diagnostics' },
+  { key = '<Leader>dt',    func = require('navigator.diagnostics').toggle_diagnostics,                  desc = 'toggle_diagnostics' },
+  { key = ']d',            func = vim.diagnostic.goto_next,                                             desc = 'next diagnostics' },
+  { key = '[d',            func = vim.diagnostic.goto_prev,                                             desc = 'prev diagnostics' },
+  { key = ']O',            func = vim.diagnostic.set_loclist,                                           desc = 'diagnostics set loclist' },
+  { key = ']r',            func = require('navigator.treesitter').goto_next_usage,                      desc = 'goto_next_usage' },
+  { key = '[r',            func = require('navigator.treesitter').goto_previous_usage,                  desc = 'goto_previous_usage' },
+  { key = '<C-LeftMouse>', func = vim.lsp.buf.definition,                                               desc = 'definition',                               fallback = fallback_fn('<C-LeftMouse>')},
+  { key = 'g<LeftMouse>',  func = vim.lsp.buf.implementation,                                           desc = 'implementation' },
+  { key = '<Leader>k',     func = require('navigator.dochighlight').hi_symbol,                          desc = 'hi_symbol' },
+  { key = '<Space>wa',     func = require('navigator.workspace').add_workspace_folder,                  desc = 'add_workspace_folder' },
+  { key = '<Space>wr',     func = require('navigator.workspace').remove_workspace_folder,               desc = 'remove_workspace_folder' },
+  { key = '<Space>ff',     func = vim.lsp.buf.format,                                             mode = 'n',                                               desc = 'format' },
+  { key = '<Space>ff',     func = vim.lsp.buf.range_formatting,                                   mode = 'v',                                               desc = 'range format' },
+  { key = '<Space>gm',     func = require('navigator.formatting').range_format,                         mode = 'n',                                         desc = 'range format operator e.g gmip' },
+  { key = '<Space>wl',     func = require('navigator.workspace').list_workspace_folders,                desc = 'list_workspace_folders' },
   {
-    key = '<Space>la', mode = 'n',
+    key = '<Space>la',
+    mode = 'n',
     func = require('navigator.codelens').run_action,
     desc = 'run code lens action',
   }
@@ -158,7 +175,7 @@ local function set_mapping(lsp_attach_info)
       k = ks[mode]
     end
     if vim.tbl_contains(k, key) then
-      vim.api.nvim_buf_del_keymap(bufnr, mode, key, ...)
+      vim.api.nvim_buf_del_keymap(bufnr, mode, key)
     end
   end
 
@@ -174,10 +191,10 @@ local function set_mapping(lsp_attach_info)
       local exists = false
       for _, default in pairs(key_maps) do
         if
-          -- override only if func and mode are the same
-          v.func == default.func
-          and (v.mode or 'n') == (default.mode or 'n')
-          and not default.override
+        -- override only if func and mode are the same
+            v.func == default.func
+            and (v.mode or 'n') == (default.mode or 'n')
+            and not default.override
         then
           default.key, default.override, exists = v.key, true, true
           break
@@ -193,12 +210,11 @@ local function set_mapping(lsp_attach_info)
     log('setting maps to ', key_maps)
   end
   local fmtkey, rfmtkey, nrfmtkey
-  require('navigator.formatting')
   for _, value in pairs(key_maps) do
     if value.doc then
       vim.notify('doc field no longer supported in navigator mapping, use desc instead')
     end
-    if type(value.func) == 'function' then -- new from 0.7.x
+    if type(value.func) == 'function' then
       -- neovim 0.7.0
       opts.buffer = key_maps.buffer or value.buffer
       if value.desc then
@@ -337,36 +353,69 @@ function M.setup(attach_opts)
   autocmd()
 
   local client = attach_opts.client or {}
-  local cap = client.server_capabilities or vim.lsp.protocol.make_client_capabilities()
+  local cap = client.server_capabilities
+  if cap == nil then
+    log('no cap found for client ', client.name)
+    return
+  end
 
   log('lsp cap:', cap.codeActionProvider)
 
   if
-    _NgConfigValues.lsp.call_hierarchy.enable and cap.call_hierarchy or cap.callHierarchyProvider
+      _NgConfigValues.lsp.call_hierarchy.enable and cap.call_hierarchy or cap.callHierarchyProvider
   then
     vim.lsp.handlers['callHierarchy/incomingCalls'] =
-      require('navigator.hierarchy').incoming_calls_handler
+        require('navigator.hierarchy').incoming_calls_handler
     vim.lsp.handlers['callHierarchy/outgoingCalls'] =
-      require('navigator.hierarchy').outgoing_calls_handler
+        require('navigator.hierarchy').outgoing_calls_handler
   end
 
   if _NgConfigValues.lsp.definition.enable then
-    vim.lsp.handlers['textDocument/definition'] = require('navigator.definition').definition_handler
-    vim.lsp.handlers['textDocument/typeDefinition'] =
-      require('navigator.definition').definition_handler
+    for _, value in pairs(key_maps) do
+      if value.func == vim.lsp.buf.definition then
+        vim.lsp.handlers['textDocument/definition'] = util.mk_handler_remap(
+        require('navigator.definition').definition_handler, value.fallback)
+      end
+
+      if value.func == vim.lsp.buf.type_definition then
+        vim.lsp.handlers['textDocument/typeDefinition'] = util.mk_handler_remap(
+        require('navigator.definition').definition_handler, value.fallback)
+      end
+    end
+  else
+    -- delete keymaps
+    for _, value in pairs(key_maps) do
+      if value.func == vim.lsp.buf.definition or value.func == vim.lsp.buf.type_definition then
+        vim.keymap.del(value.mode or 'n', value.key, { buffer = attach_opts.bufnr or vim.api.nvim_get_current_buf() })
+      end
+    end
   end
 
   vim.lsp.handlers['textDocument/references'] = require('navigator.reference').reference_handler
   -- vim.lsp.handlers["textDocument/codeAction"] = require"navigator.codeAction".code_action_handler
 
   if cap.declarationProvider then
-    vim.lsp.handlers['textDocument/declaration'] =
-      require('navigator.definition').declaration_handler
+    local hdlr = require('navigator.definition').declaration_handler
+
+    for _, value in pairs(key_maps) do
+      if value.func == vim.lsp.buf.declaration then
+        vim.lsp.handlers['textDocument/declaration'] = util.mk_handler_remap(hdlr, value.fallback)
+        break
+      end
+    end
+  else
+    -- remove declaration keymap
+    for _, value in pairs(key_maps) do
+      if value.func == vim.lsp.buf.declaration then
+        vim.keymap.del(value.mode or 'n', value.key, { buffer = attach_opts.bufnr or vim.api.nvim_get_current_buf() })
+        break
+      end
+    end
   end
 
   if _NgConfigValues.lsp.implementation.enable then
     vim.lsp.handlers['textDocument/implementation'] =
-      require('navigator.implementation').implementation_handler
+        require('navigator.implementation').implementation_handler
   end
 
   -- vim.lsp.handlers['textDocument/documentSymbol'] = require('navigator.symbols').document_symbol_handler
@@ -375,11 +424,11 @@ function M.setup(attach_opts)
   end
   if _NgConfigValues.lsp.diagnostic.enable then
     vim.lsp.handlers['textDocument/publishDiagnostics'] =
-      require('navigator.diagnostics').diagnostic_handler
+        require('navigator.diagnostics').diagnostic_handler
   end
 
   if
-    vim.fn.empty(_NgConfigValues.signature_help_cfg) == 0 or _NgConfigValues.lsp_signature_help
+      vim.fn.empty(_NgConfigValues.signature_help_cfg) == 0 or _NgConfigValues.lsp_signature_help
   then
     log('setup signature from navigator')
     local hassig, sig = pcall(require, 'lsp_signature')
diff --git a/lua/navigator/util.lua b/lua/navigator/util.lua
index e9921f6..228ec09 100644
--- a/lua/navigator/util.lua
+++ b/lua/navigator/util.lua
@@ -606,4 +606,25 @@ function M.for_each_buffer_client(bufnr, fn)
   end
 end
 
+function M.binding_remap(fn, key)
+  return function(...)
+    if fn(...) ~= true and key then -- the function failed fallback to key
+      M.log(key)
+      vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, false, true), 'n', true)
+    end
+  end
+end
+
+function M.mk_handler_remap(fn, fallback)
+  return function(...)
+    if fn(...) ~= true then -- the function failed fallback to key
+      M.log('fallback, ', fallback)
+      if fallback then
+        M.log('fallback')
+        fallback()
+      end
+    end
+  end
+end
+
 return M