narrow

narrow something.
Code navigation tool inspired by unite.vim, emacs-helm.
More information on wiki

What's this?

• Provide narrowing UI like emacs-helm and unite/denite.vim.
• Not aiming to become "can open anything from narrow-able UI" package.
• Primal focus is on code-navigation.
• Provider provide items( e.g. by search files in project ), you can filter items by query to narrow down further.
• As you move cursor on active-editor, current item on narrow-ui is automatically synced.
• You no longer lost like "Where am I?" when you are working on multiple files.
• Let narrow navigate to next/previous item to aid your concentration.
• Edit with confidence for no-overlook by direct-edit( edit on ag search result on narrow-editor then apply changes to real-file ).
• In mind
  • keyboard navigation.
  • vim-mode-plus integration( I'm also maintainer of vim-mode-plus ).
• Also see UseCase on wiki and Q&A on this doc

Roles in play.

• narrow-editor or narrow-ui: filter items by query and render items.
• narrow-provider: Provide items to narrow.

overview

control bar

Bundled providers

You can check GIFs for all bundled provider here.
I use scan, search, git-diff-all, symbols in daily-basis, for other providers I don't use much.

• scan: Scan current editor.
• search: Search by ag( you need to install ag by yourself).
• atom-scan: Similar to search but use Atom's atom.workspace.scan.
• fold: Provide fold-starting rows as item.
• git-diff-all: Show all modified state file across project.
• symbols: Provide symbols for current file.
• project-symbols: Provide project-wide symbols information by reading tags file.

Quick tour

To follow this quick-tour, you don't need custom keymap.

Step1. basic by using narrow:scan

1. Open some text-editor, then via command-palette, invoke Narrow Scan.
2. narrow-editor opened, Initial items are each lines on editor. As you type, you can narrow items.
3. When you type apple as query. all apple matching items are listed.
4. You can move normal up, down(or j, k in read-only mode) key to quick-preview items.
5. enter to confirm. When confirmed, narrow-editor closed.

The read-only mode is enabled by default.

Step2. navigate from outside of narrow-editor.

1. Open some text-editor, then via command-palette, invoke Narrow Scan.
2. narrow-editor opened. As you type, you can narrow items.
3. Click invoking editor. And see your clicked position is automatically reflected narrow-editor.
4. ctrl-cmd-n to move to next-item, ctrl-cmd-p to move to previous-item.

• If you are vim-mode-plus user, You can use tab and shift-tab.

5. You can close narrow-editor by ctrl-g( no need to focus narrow-editor ).
6. If you want to change narrow-query, you have to focus to narrow-editor

• Use ctrl-cmd-f( narrow:focus ) to focus narrow-editor.
• Use ctrl-cmd-i( narrow:focus-prompt ) to directly focus narrow-editor's query prompt row.
• Both commands are available from outside/inside of narrow-editor.

7. These navigation keymaps are available for all provider(e.g. search, fold etc).

Step3. direct-edit

Direct-edit is "edit on narrow-editor then save to real-file" feature.
Available for following providers.

• scan
• search
• atom-scan

⚠️ This operation is dangerous, since you can update multiple files at once. ⚠️ You have to be careful enough to use this feature, don't use this without understanding what you are doing. ⚠️ I can say sorry, but I can not recover file for you.

1. Open file from project, place cursor for variable name hello
2. Then invoke Narrow Search By Current Word.
3. All hello matching items are shows up on narrow-editor.
4. If you want, you can further narrow by query.
5. Then edit narrow-editor's text directly.

• Place cursor on hello. Then ctrl-cmd-g(find-and-replace:select-all), then type world.

6. Invoke Narrow Ui: Update Real File from command-palette.
7. DONE, changes you made on narrow-editor items are applied to real-file(and saved).
8. You can undo changes by re-edit items on narrow-editor and reapply changes by Narrow Ui: Update Real File.

Step4. [Experimental] search keyword by mouse

1. Set Search.startByDoubleClick to true from settings-view.
2. Double click keyword in editor.
3. Each time you double click keyword, new narrow-editor open and old one is replaced.
4. You can continue double click which ever narrow-editor or normal-editor.

Commands

Available in all text-editor

Other

• narrow:focus: ( ctrl-cmd-f ) Focus to narrow-editor, if executed in narrow-editor, it re-focus to original editor.
• narrow:focus-prompt: ( ctrl-cmd-i ) Focus to narrow-editor's query input prompt, if executed in narrow-editor, it re-focus to original editor.
• narrow:refresh: Manually refresh items in narrow-editor.
• narrow:close: ( ctrl-g ) Close currently opened narrow-editor one at a time.
• narrow:next-item: ( ctrl-cmd-n ) Move cursor to position of next-item.
• narrow:previous-item: ( ctrl-cmd-p ) Move cursor to position of previous-item.
• narrow:reopen: ( no default keymap ) Reopen closed narrow editor up to 10 recent closed.
• narrow:query-current-word: ( ctrl-cmd-e ) Replace active narrow-editor's query with cursor word.
• narrow:previous-query-history: ( ctrl-cmd-[ ) Replace active narrow-editor's query with previous history entry.
• narrow:next-query-history: ( ctrl-cmd-] ) Replace active narrow-editor's query with next history entry.

Invoke narrow provide

No keymaps are provided

• narrow:scan
• narrow:scan-by-current-word
• narrow:fold
• narrow:fold-by-current-word
• narrow:search: ag search. need install by your self.
• narrow:search-by-current-word
• narrow:search-current-project
• narrow:search-current-project-by-current-word
• narrow:atom-scan
• narrow:atom-scan-by-current-word
• narrow:symbols
• narrow:symbols-by-current-word
• narrow:project-symbols:
• narrow:project-symbols-by-current-word:
• narrow:git-diff-all

Available in narrow-editor(narrow-ui)

The !vmp followed by keymap means "which keymap is not available for vim-mode-plus user".
If you want use these keymap with vim-mode-plus, set it by yourself.
See Wiki

• core:confirm: ( enter ) Close narrow-editor
• narrow-ui:confirm-keep-open: keep open narrow-editor
• narrow-ui:open-here: Open item at same pane of UI's pane.
• narrow-ui:preview-item: Preview currently selected item manually( you don't need in most case ).
• narrow-ui:preview-next-item: ( tab ) Preview next-item without moving cursor from narrow-editor's query prompt.
• narrow-ui:preview-previous-item: ( shift-tab ) Preview next-item without moving cursor from narrow-editor's query prompt.
• narrow-ui:toggle-auto-preview: ( ctrl-r for non-vim-mode-plus user) Disable/enable auto-preview for this narrow-editor.
• narrow-ui:move-to-prompt: ctrl-cmd-i
• narrow-ui:stop-insert: escape
• narrow-ui:update-real-file: Apply changes made in narrow-editor to real-file.( edit in narrow-editor then save it to real file. )
• narrow-ui:protect: No keymap by default, Protect narrow-editor from being destroyed by narrow:close( ctrl-g ).
• narrow-ui:exclude-file: backspace, Exclude items which matches filePath of currently selected item's.
• narrow-ui:clear-excluded-files: ctrl-backspace, Clear excluded files list.
• narrow-ui:select-files: cmd-backspace, interactively select which filePath's items to appear on narrow-editor.
• narrow-ui:toggle-search-whole-word: alt-cmd-w
• narrow-ui:toggle-search-ignore-case: alt-cmd-c
• narrow-ui:toggle-search-use-regex: alt-cmd-/
• narrow-ui:start-insert: I(!vmp), a(!vmp)
• narrow-ui:move-to-next-file-item: n(!vmp)
• narrow-ui:move-to-previous-file-item: p(!vmp)
• narrow-ui:relocate: No keymap by default, Switch location where ui opened between center workspace and bottom dock.

Keymaps

No keymap to invoke narrow provider(e.g narrow:scan).
Start it from command-palette or set keymap in keymap.cson.

⚠️ default keymap is not yet settled, this will likely to change in future version.

My keymap(vim-mode-plus user) and config

config.cson

  narrow:
    SelectFiles:
      rememberQuery: true
    confirmOnUpdateRealFile: false

keymap.cson

Explanation of my keymap.

• cmd-f: To focus to narrow-editor AND focus-back to original-editor
• cmd-i: To focus to narrow-editor's prompt AND focus-back to original-editor
• cmd-e:
  • When workspace has no narrow-edior on workspace: start narrow:search-by-current-word.
  • When workspace has at least one narrow-edior: query-current-word( by default keymap).
    • Replace active narrow-edior's query with cursor-word.
• cmd-[: narrow:previous-query-history Recall previous history
• cmd-]: narrow:next-query-history, Recall next history
• ctrl-g: Close narrow-editor from wherever.
• tab, shift-tab: to move to next/previous item.
• ;: confirm current-item without closing narrow-editor, I can close narrow-editor by ctrl-g.

# From outside of narrow-editor
# -------------------------

# `cmd-e` start `search-by-current-word` only when workspace does NOT have `narrow-editor`.
# NOTE: When workspace.has-narrow, `cmd-e` is mapped to `query-current-word` by default.
'atom-workspace:not(.has-narrow) atom-text-editor.vim-mode-plus:not(.insert-mode)':
  'cmd-e': 'narrow:search-by-current-word'

'atom-text-editor.vim-mode-plus:not(.insert-mode)':
  'ctrl-z':      'narrow:reopen'
  'space f':     'narrow:fold'
  'cmd-o':       'narrow:symbols-by-current-word'
  'cmd-shift-o': 'narrow:project-symbols-by-current-word'
  'cmd-r':       'narrow:symbols' # Override default cmd-r
  'cmd-shift-r': 'narrow:project-symbols' # Override default cmd-shift-r
  'space l':     'narrow:scan'
  'cmd-l':       'narrow:scan-by-current-word'
  'space s':     'narrow:search'
  'space G':     'narrow:git-diff-all'

# When workspace has narrow-editor
'atom-workspace.has-narrow atom-text-editor.vim-mode-plus.normal-mode':
  'cmd-f': 'narrow:focus' # focus to narrow-editor
  'cmd-i': 'narrow:focus-prompt' # focus to prompt of narrow-editor

  # Following three command have ctrl- prefixed by default to avoid conflicts.
  # But I don' care conflict, prefer more accessible keymap.
  'cmd-[': 'narrow:previous-query-history'
  'cmd-]': 'narrow:next-query-history'
  'cmd-e': 'narrow:query-current-word'

# narrow-editor regardless of mode of vim
'atom-text-editor.narrow.narrow-editor[data-grammar="source narrow"]':
  'cmd-f': 'narrow:focus'
  'cmd-i': 'narrow:focus-prompt' # cmd-i to return to calling editor.

  # Danger: apply change on narrow-editor to real file by `cmd-s`.
  'cmd-s': 'narrow-ui:update-real-file'

  # Move ui in between bottom dock and center workspace.
  'cmd-t': 'narrow-ui:relocate'

'atom-workspace.has-narrow atom-text-editor.vim-mode-plus.normal-mode,
  atom-workspace.has-narrow atom-text-editor.vim-mode-plus.visual-mode':
    'cmd-e': 'narrow:query-current-word' # set current word as query of active ui.

'atom-text-editor.narrow.narrow-editor.vim-mode-plus.normal-mode':
  'g g': 'narrow-ui:move-to-prompt'
  's': 'narrow-ui:select-files'
  ';': 'narrow-ui:confirm-keep-open'
  'n': 'narrow-ui:move-to-next-file-item'
  'p': 'narrow-ui:move-to-previous-file-item'

Recommended configuration for other packages.

• Suppress autocomplete-plus's popup on narrow-editor
• Disable vim-mode-plus's highlight-search on narrow-editor

"*":
  "autocomplete-plus":
    suppressActivationForEditorClasses: [
      # snip
      "narrow"
    ]
  # snip
  "vim-mode-plus":
    highlightSearchExcludeScopes: [
      "narrow"
    ]

Notes for vim-mode-plus user

⚠️ Limitation: for compatibility with vim-mode-plus.

• If you use atom v1.16.0 or older,
  • Don't enable vim-mode-plus.automaticallyEscapeInsertModeOnActivePaneItemChange
  • If you enabled, each query input on narrow-editor of search provider cause mode-change from insert-mode to normal-mode.
• If you use atom v1.17.0 or older( currently in beta ).
  • This limitation is no longer exists.

Keymap

Learn keymap available as default.
e.g. You can move to next or previous item by tab, shift-tab(for this to work, you need vim-mode-plus v0.81.0 or later).

Start narrow from vim-mode-plus's search-input-form

If you are vim-mode-plus user. Following command are available from vim-mode-plus's search(/ or ?) mini-editor.

• vim-mode-plus-user:narrow:scan
• vim-mode-plus-user:narrow:search
• vim-mode-plus-user:narrow:search-current-project
• vim-mode-plus-user:narrow:atom-scan

How to edit item-area for direct-edit.

• In narrow-editor, i, a in normal-mode move cursor to prompt line.
• So when you want to edit items itself for direct-edit and update-real-file use other key to enter insert-mode.
• I is intentionally mapped to vim-mode-plus:activate-insert-mode which is normally mapped to i.
  • Which might not be intuitive, but I want make item mutatation bit difficult. So user have to type I.
• Other than I, you can start insert-mode by A, c etc..

Q&A

What providers are you seriously using?

In daily editing, I use.

scan, search, git-diff-all, symbols.

Why I'm not using others? reason is here.

• fold: Since it similar to symbols.
• atom-scan: it is provided for windows user who can't use search(need ag or rg).

Noticed I can close narrow-editor by normal cmd-w(core:close). Why I need narrow:close? What's the difference?

The biggest difference is narrow:close restore editor state(scrollTop, fold, active pane item) if user did only preview from startup.

• narrow:close: Close narrow-editor and restore editor state when it appropriate. Also can close narrow-editor regardless of current active-editor.
• core:close: Just destroy narrow-editor.

Use whichever you want accordingly. I normally use narrow:close and occasionally use core:close such like when I want to focus next-pane-item of narrow-editor(so don't want to restore focus to narrow initiated editor).

How can I exclude particular file from narrow:search

Use backspace on item

• Use backspace to exclude particular file from result.
• ctrl-backspace clear excluded file list and refresh
• These keymaps are available in narrow-editor and you are in read-only-mode

Use select-files provider

• You can launch select-files by cmd-backspace or clicking folder-icon on control-bar.

1. search editor by narrow:search, you see lots of editor mached items
2. But you want exclude items in markdown file?

• launch select-files, all file paths are listed as item.
• Then type md on query, you see markdown filepath that macheed md.
• Then add !, now your query is md!, this is treated as all files not matching md.
• enter to confirm.

3. You see items with items in markdown files are excluded.
4. You can re-fine files to exclude by re-launching select-files.

• e.g. To exclude spec folder, you can add spec/! as query.
• e.g. To include .js file only, you can set query to .js.

Want to skip to next-file, previous-file

• Use n, p in read-only mode.

I want narrow:symbols always shows up at right-most pane and don't want to close.

1. Open narrow:symbols( or maybe you want to use narrow:fold )
2. Move this narrow-editor by drag and drop to the place where you want.
3. From command-palette, execute Narrow Ui: Protect. Now narrow-editor protected.
4. Protected narrow-editor is not closed by ctrl-g( narrow:close ), and not closed by confirm by enter.
5. To close, use normal cmd-w or close button on tab.