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feat(keymaps): add mappings for easier navigation
To make it easier to navigate the buffer and manipulate its contents, this commit adds a set of default keymaps, which provide basic navigation: - <c-i>, sets the cursor to the start - <c-a>, sets the cursor to the end - <c-e>, sets the cursor to the word end - <c-b>, sets the cursor to the word start - <c-c>, clears the line - <c-u>, undo changes - <c-r>, redo undone changes Closes: GH-3 Signed-off-by: Filip Dutescu <filip.dutescu@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| local utils = require 'renamer.mappings.utils' | ||
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| --- @class Mappings | ||
| --- @field public bindings table | ||
| --- @field public keymap_opts table | ||
| local mappings = { | ||
| bindings = { | ||
| ['<c-i>'] = utils.set_cursor_to_start, | ||
| ['<c-a>'] = utils.set_cursor_to_end, | ||
| ['<c-e>'] = utils.set_cursor_to_word_end, | ||
| ['<c-b>'] = utils.set_cursor_to_word_start, | ||
| ['<c-c>'] = utils.clear_line, | ||
| ['<c-u>'] = utils.undo, | ||
| ['<c-r>'] = utils.redo, | ||
| }, | ||
| keymap_opts = { | ||
| noremap = true, | ||
| silent = true, | ||
| }, | ||
| } | ||
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| mappings.register_bindings = function(buf_id) | ||
| if buf_id and mappings.bindings then | ||
| for binding, _ in pairs(mappings.bindings) do | ||
| local action = string.format( | ||
| '<cmd>lua require("renamer.mappings").exec_keymap_action("%s")<cr>', | ||
| binding:gsub('<', '<lt>') | ||
| ) | ||
| vim.api.nvim_buf_set_keymap(buf_id, 'i', binding, action, mappings.keymap_opts) | ||
| end | ||
| end | ||
| end | ||
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| mappings.exec_keymap_action = function(binding) | ||
| if binding and mappings.bindings and mappings.bindings[binding] then | ||
| mappings.bindings[binding]() | ||
| end | ||
| end | ||
|
|
||
| return mappings |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| local utils = {} | ||
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| utils.exec_in_normal = function(callback, opts, ...) | ||
| vim.cmd [[stopinsert]] | ||
| callback(...) | ||
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| if opts and opts.keep_insert then | ||
| vim.api.nvim_feedkeys('i', 'n', true) | ||
| end | ||
| end | ||
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| utils.set_cursor_to_end = function() | ||
| utils.exec_in_normal(vim.api.nvim_feedkeys, {}, 'A', 'n', true) | ||
| end | ||
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| utils.set_cursor_to_start = function() | ||
| utils.exec_in_normal(vim.api.nvim_feedkeys, {}, 'I', 'n', true) | ||
| end | ||
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| utils.set_cursor_to_word_end = function() | ||
| utils.exec_in_normal(vim.api.nvim_feedkeys, { keep_insert = true }, 'e', 'n', true) | ||
| end | ||
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| utils.set_cursor_to_word_start = function() | ||
| utils.exec_in_normal(vim.api.nvim_feedkeys, { keep_insert = true }, 'b', 'n', true) | ||
| end | ||
|
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| utils.clear_line = function() | ||
| utils.exec_in_normal(vim.api.nvim_feedkeys, { keep_insert = true }, '0C', 'n', true) | ||
| end | ||
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| utils.undo = function() | ||
| utils.exec_in_normal(vim.api.nvim_feedkeys, { keep_insert = true }, 'u', 't', true) | ||
| end | ||
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| utils.redo = function() | ||
| utils.exec_in_normal(function() | ||
| local key = vim.api.nvim_replace_termcodes('<c-r>', true, false, true) | ||
| vim.api.nvim_feedkeys(key, 't', true) | ||
| end, { | ||
| keep_insert = true, | ||
| }) | ||
| end | ||
|
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||
| return utils |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| local mappings = require 'renamer.mappings' | ||
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| local eq = assert.are.same | ||
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| describe('mappings', function() | ||
| it('should have actions initialized for all `bindings`', function() | ||
| local bindings = mappings.bindings | ||
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| for key, value in pairs(bindings) do | ||
| assert(value, string.format('No action mapped to "%s".', key)) | ||
| end | ||
| end) | ||
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| it('should have `keymap_opts` initialized', function() | ||
| local expected_opts = { noremap = true, silent = true } | ||
| local keymap_opts = mappings.keymap_opts | ||
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| eq(expected_opts, keymap_opts) | ||
| end) | ||
| end) |
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