diff options
Diffstat (limited to 'autoload')
| -rw-r--r-- | autoload/novim_mode.vim | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/autoload/novim_mode.vim b/autoload/novim_mode.vim new file mode 100644 index 0000000..f7408d3 --- /dev/null +++ b/autoload/novim_mode.vim @@ -0,0 +1,287 @@ +" A fundamental question for this plugin is whether insertmode +" is always relevant. This is where we try to get an answer. +function! s:IsEditableBuffer() + if &buftype ==# 'nofile' + \|| !&modifiable + \|| &readonly + \|| bufname('%') =~# 'NERD_tree_' + return 0 + else + return 1 + endif +endfunction + +" Make sure insert mode is the default mode only when opening/switching +" to files that you want to edit. +function! s:InsertMode() + if s:IsEditableBuffer() == 1 + exe "set insertmode" + else + exe "set noinsertmode" + endif +endfunction + +" Count number of open buffers. They don't have to be visible. +function! s:CountListedBuffers() + let bfr_count = 0 + for bfr in range(1, bufnr("$")) + if buflisted(bfr) + \&& ! empty(bufname(bfr)) + \|| getbufvar(bfr, '&buftype') ==# 'help' + let bfr_count += 1 + endif + endfor + return bfr_count +endfunction + +" The number of visible lines in the current buffer. +" TODO: Include wrapped lines in the total, so that we can start scrolling +" through *visible* lines rather than file lines. +function! s:BufferLines() + return line('w$') - line('w0') +endfunction + +function! s:InsertAndSelectionBehaviour() + " Intelligently set/unset insertmode + augroup start_insertmode + autocmd! + autocmd BufEnter * call s:InsertMode() + augroup END + + " Mostly changes the way selection works. + " See: http://vimdoc.sourceforge.net/htmldoc/gui.html#:behave + " An extract from the docs about the difference between `behave mswin` + " and `behave xterm`: + " mswin xterm + " 'selectmode' 'mouse,key' '' + " 'mousemodel' 'popup' 'extend' + " 'keymodel' 'startsel,stopsel' '' + " 'selection' 'exclusive' 'inclusive' + behave mswin + + " Make 'v' commands default to Visual mode. + " Not sure how useful this is because the mappings that use 'v'-based + " commands don't seem to follow this option. Thus why you will see <C-G> + " after some selection-based commands to switch from Visual to Selection + " Mode. So might be better to give experienced users who are pressing + " 'v' in normal mode the expected behaviour. + set selectmode+=cmd +endfunction + +" All shortcuts in one function so they can be more easily controlled. +function! g:SetNoVimModeShortcuts() + " Basic interactions with the editor + if g:novim_mode_use_general_app_shortcuts == 1 + " CTRL+q to completely exit vim + inoremap <silent> <C-Q> <C-O>:call novim_mode#ExitVim()<CR> + snoremap <silent> <C-Q> <C-O>:call novim_mode#ExitVim()<CR> + nnoremap <silent> <C-Q> :call novim_mode#ExitVim()<CR> + + " CTRL+n for new file + inoremap <C-N> <C-O>:edit<Space> + " CTRL+o to open file + " TODO: hook into netrw or NERDTree + inoremap <C-O> <C-O>:edit<Space> + " CTRL+s saves + inoremap <silent> <C-S> <C-O>:update<CR> + + " Goto line number + inoremap <C-G> <C-O>:call novim_mode#GotoLine()<CR> + + " ALT+; for command prompt + inoremap <M-;> <C-O>: + + " <ALT+o> replaces native <C-O> for one-time normal mode commands. + inoremap <M-o> <C-O> + snoremap <M-o> <C-O> + endif + + " General fixes to editor behaviour + if g:novim_mode_use_editor_fixes == 1 + " Fix HOME to go back to the first non-whitespace character of the line + inoremap <silent> <Home> <C-O>^ + + " Tweaks PageUp behaviour to get cursor to first line on top page + inoremap <silent> <PageUp> <C-O>:call novim_mode#PageUp()<CR> + endif + + " Move between splits, panes, windows, etc and close them + if g:novim_mode_use_pane_controls == 1 + inoremap <silent> <M-Left> <C-O><C-W><Left> + nnoremap <silent> <M-Left> <C-W><Left> + inoremap <silent> <M-Down> <C-O><C-W><Down> + nnoremap <silent> <M-Down> <C-W><Down> + inoremap <silent> <M-Up> <C-O><C-W><Up> + nnoremap <silent> <M-Up> <C-W><Up> + inoremap <silent> <M-Right> <C-O><C-W><Right> + nnoremap <silent> <M-Right> <C-W><Right> + + " This allows unsaved buffers to be kept in the background. + set hidden + + " CTRL+w to delete current pane-like things. + inoremap <silent> <C-W> <C-O>:call novim_mode#ClosePane()<CR> + snoremap <silent> <C-W> <C-O>:call novim_mode#ClosePane()<CR> + nnoremap <silent> <C-W> :call novim_mode#ClosePane()<CR> + end + + " Selecting, copy, paste, etc + if g:novim_mode_use_copypasting == 1 + " One of those curious features of Vim: without `onemore` when pasting + " at the end of a line, pasted text gets put *before* the cursor. + set virtualedit=onemore + " NB. All these use the named 'p' register. + inoremap <C-V> <C-O>"pP + snoremap <C-C> <C-O>"pyi + inoremap <C-C> <C-O>"pY + snoremap <C-X> <C-O>"pxi + inoremap <C-X> <C-O>"pdd + " Select word under cursor + inoremap <C-D> <C-O>viw<C-G> + " Select current line + inoremap <C-L> <C-O>V<C-G> + " Append next line to selection + snoremap <C-L> <C-O>gj + + " CTRL-A for selecting all text + inoremap <C-A> <C-O>gg<C-O>gH<C-O>G + snoremap <C-A> <C-O><C-C>gggH<C-O>G + endif + + " Indenting + if g:novim_mode_use_indenting == 1 + " TODO: TAB doesn't work in mswin selection mode, but SHIFT+TAB does?? + snoremap <Tab> <C-O>>gv + inoremap <M-]> <C-T> + snoremap <M-]> <C-O>>gv + " Unindenting + snoremap <S-Tab> <C-O><gv + inoremap <M-[> <C-D> + snoremap <M-[> <C-O><gv + endif + + if g:novim_mode_use_finding == 1 + " Find + inoremap <C-F> <C-O>/ + " Find selected word under cursor + snoremap <C-F> <C-O>y/<C-R>"<CR> + " Find next + inoremap <F3> <C-O>n + " Find previous + inoremap <S-F3> <C-O>N + " Find and replace + inoremap <C-H> <C-O>:%s/[FIND]/[REPLACE]/g + " Clears highlighting. + " NB. Overriding ESC makes it harder to get into NORMAL mode. + inoremap <silent> <Esc> <C-O>:noh<CR> + endif + + " Undo/redo + if g:novim_mode_use_undoing == 1 + " Use <M-o><C-Z> for native terminal backgrounding. + " The <Esc>s used in the `snoremap` commands seem to prevent the selection + " process itself being put in the undo history - so now the undo actually undoes + " the last *text* activity. + inoremap <silent> <C-Z> <C-O>u + snoremap <silent> <C-Z> <Esc><C-O>u + " Map CTRL+u as well for now just because by default it deletes the line above + " the cursor. + inoremap <silent> <C-U> <C-O>u + snoremap <silent> <C-U> <Esc><C-O>u + " Redo + inoremap <silent> <C-Y> <C-O><C-R> + snoremap <silent> <C-Y> <Esc><C-O><C-R> + endif + + " Useful, but not necessarily core or conventional, shortcuts for manipulating + " text. + if g:novim_mode_use_text_tricks == 1 + " CTRL+ALTt+k deletes the current line under the cursor + inoremap <silent> <C-M-K> <C-O>"_dd + + " CTRL+ALT+d duplicates current line. + " NB. Uses the named 'd' register. + inoremap <silent> <C-M-D> <C-O>"dyy<C-O>"dp + + " CTRL+DOWN/UP moves the current/selected line(s) up and down + inoremap <silent> <C-Up> <C-O>:m -2<CR> + snoremap <silent> <C-Up> <C-O>:m '<-2<CR>gv=gv<C-G> + inoremap <silent> <C-Down> <C-O>:m +1<CR> + snoremap <silent> <C-Down> <C-O>:m '>+1<CR>gv=gv<C-G> + endif +endfunction + +" By default Vim treats wrapped text as a single line even though it may +" appear as many lines on screen. So here we try to make wrapped text behave +" more conventionally. +function! s:SetWrappedTextNavigation() + " Allow text to wrap in text files + au BufNewFile,BufRead *.txt,*.md,*.markdown setlocal linebreak spell + + " Make arrow keys move through wrapped lines + " TODO: + " * Make END key move to end of current wrapped piece of line. + " * Scroll window 1 wrapped soft line at a time rather an entire block of wrapped + " lines. + au BufNewFile,BufRead *.txt,*.md,*.markdown inoremap <buffer> <Up> <C-O>gk + au BufNewFile,BufRead *.txt,*.md,*.markdown inoremap <buffer> <Down> <C-O>gj +endfunction + +" Try to intuitively and intelligently close things like buffers, splits, +" panes, quicklist, etc, basically anything that looks like a pane. +function! novim_mode#ClosePane() + if s:IsEditableBuffer() == 1 + " Close any location lists on screen. + exe "lclose" + " Close any quickfix lists on screen. + exe "cclose" + + if s:CountListedBuffers() > 1 + " By default if the buffer is the only one on screen, closing it closes the + " tab/window. So this little trick does a switch to the next buffer, + " then closes the previous buffer. + exe "bp\|bd #" + else + quit + endif + else + quit + endif +endfunction + +" TODO: Mention any unsaved buffers +function! novim_mode#ExitVim() + let l:confirmed = confirm('Do you really want to quit Vim?', "&Yes\n&No", 2) + if l:confirmed == 1 + quitall! + endif +endfunction + +function! novim_mode#GotoLine() + let l:line_number = input('Goto line: ') + execute line_number +endfunction + +" Just to get PAGEUP to move to the first line when on the first page. +function! novim_mode#PageUp() + " If current line is higher than the size of the buffer + if line(".") > s:BufferLines() + " Normal PageUp + execute "normal! \<C-b>" + else + " Goto first line + execute "normal! gg" + endif +endfunction + +function! g:novim_mode#StartNoVimMode() + call s:InsertAndSelectionBehaviour() + + if g:novim_mode_use_better_wrap_navigation == 1 + call s:SetWrappedTextNavigation() + endif + + if g:novim_mode_use_shortcuts == 1 + call g:SetNoVimModeShortcuts() + endif +endfunction |