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zsh/.oh-my-zsh/plugins/vi-mode/vi-mode.plugin.zsh

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+# Control whether to force a redraw on each mode change.
+#
+# Resetting the prompt on every mode change can cause lag when switching modes.
+# This is especially true if the prompt does things like checking git status.
+#
+# Set to "true" to force the prompt to reset on each mode change.
+# Unset or set to any other value to do the opposite.
+#
+# The default is not to reset, unless we're showing the mode in RPS1.
+typeset -g VI_MODE_RESET_PROMPT_ON_MODE_CHANGE
+# Control whether to change the cursor style on mode change.
+#
+# Set to "true" to change the cursor on each mode change.
+# Unset or set to any other value to do the opposite.
+typeset -g VI_MODE_SET_CURSOR
+
+typeset -g VI_KEYMAP=main
+
+function _vi-mode-set-cursor-shape-for-keymap() {
+  [[ "$VI_MODE_SET_CURSOR" = true ]] || return
+
+  # https://vt100.net/docs/vt510-rm/DECSCUSR
+  local _shape=0
+  case "${1:-${VI_KEYMAP:-main}}" in
+    main)    _shape=6 ;; # vi insert: line
+    viins)   _shape=6 ;; # vi insert: line
+    isearch) _shape=6 ;; # inc search: line
+    command) _shape=6 ;; # read a command name
+    vicmd)   _shape=2 ;; # vi cmd: block
+    visual)  _shape=2 ;; # vi visual mode: block
+    viopp)   _shape=0 ;; # vi operation pending: blinking block
+    *)       _shape=0 ;;
+  esac
+  printf $'\e[%d q' "${_shape}"
+}
+
+# Updates editor information when the keymap changes.
+function zle-keymap-select() {
+  # update keymap variable for the prompt
+  typeset -g VI_KEYMAP=$KEYMAP
+
+  if [[ "${VI_MODE_RESET_PROMPT_ON_MODE_CHANGE:-}" = true ]]; then
+    zle reset-prompt
+    zle -R
+  fi
+  _vi-mode-set-cursor-shape-for-keymap "${VI_KEYMAP}"
+}
+zle -N zle-keymap-select
+
+# These "echoti" statements were originally set in lib/key-bindings.zsh
+# Not sure the best way to extend without overriding.
+function zle-line-init() {
+  local prev_vi_keymap
+  prev_vi_keymap="${VI_KEYMAP:-}"
+  typeset -g VI_KEYMAP=main
+  [[ "$prev_vi_keymap" != 'main' ]] && [[ "${VI_MODE_RESET_PROMPT_ON_MODE_CHANGE:-}" = true ]] && zle reset-prompt
+  (( ! ${+terminfo[smkx]} )) || echoti smkx
+  _vi-mode-set-cursor-shape-for-keymap "${VI_KEYMAP}"
+}
+zle -N zle-line-init
+
+function zle-line-finish() {
+  typeset -g VI_KEYMAP=main
+  (( ! ${+terminfo[rmkx]} )) || echoti rmkx
+  _vi-mode-set-cursor-shape-for-keymap default
+}
+zle -N zle-line-finish
+
+bindkey -v
+
+# allow vv to edit the command line (standard behaviour)
+autoload -Uz edit-command-line
+zle -N edit-command-line
+bindkey -M vicmd 'vv' edit-command-line
+
+# allow ctrl-p, ctrl-n for navigate history (standard behaviour)
+bindkey '^P' up-history
+bindkey '^N' down-history
+
+# allow ctrl-h, ctrl-w, ctrl-? for char and word deletion (standard behaviour)
+bindkey '^?' backward-delete-char
+bindkey '^h' backward-delete-char
+bindkey '^w' backward-kill-word
+
+# allow ctrl-r and ctrl-s to search the history
+bindkey '^r' history-incremental-search-backward
+bindkey '^s' history-incremental-search-forward
+
+# allow ctrl-a and ctrl-e to move to beginning/end of line
+bindkey '^a' beginning-of-line
+bindkey '^e' end-of-line
+
+function wrap_clipboard_widgets() {
+  # NB: Assume we are the first wrapper and that we only wrap native widgets
+  # See zsh-autosuggestions.zsh for a more generic and more robust wrapper
+  local verb="$1"
+  shift
+
+  local widget
+  local wrapped_name
+  for widget in "$@"; do
+    wrapped_name="_zsh-vi-${verb}-${widget}"
+    if [ "${verb}" = copy ]; then
+      eval "
+        function ${wrapped_name}() {
+          zle .${widget}
+          printf %s \"\${CUTBUFFER}\" | clipcopy 2>/dev/null || true
+        }
+      "
+    else
+      eval "
+        function ${wrapped_name}() {
+          CUTBUFFER=\"\$(clippaste 2>/dev/null || echo \$CUTBUFFER)\"
+          zle .${widget}
+        }
+      "
+    fi
+    zle -N "${widget}" "${wrapped_name}"
+  done
+}
+
+wrap_clipboard_widgets copy vi-yank vi-yank-eol vi-backward-kill-word vi-change-whole-line vi-delete
+wrap_clipboard_widgets paste vi-put-{before,after}
+unfunction wrap_clipboard_widgets
+
+# if mode indicator wasn't setup by theme, define default
+if [[ -z "$MODE_INDICATOR" ]]; then
+  MODE_INDICATOR='%B%F{red}<%b<<%f'
+fi
+
+function vi_mode_prompt_info() {
+  # If we're using the prompt to display mode info, and we haven't explicitly
+  # disabled "reset prompt on mode change", then set it here.
+  #
+  # We do that here instead of the `if` statement below because the user may
+  # set RPS1/RPROMPT to something else in their custom config.
+  : "${VI_MODE_RESET_PROMPT_ON_MODE_CHANGE:=true}"
+
+  echo "${${VI_KEYMAP/vicmd/$MODE_INDICATOR}/(main|viins)/}"
+}
+
+# define right prompt, if it wasn't defined by a theme
+if [[ -z "$RPS1" && -z "$RPROMPT" ]]; then
+  RPS1='$(vi_mode_prompt_info)'
+fi