diff options
Diffstat (limited to 'Functions/Zle/add-zle-hook-widget')
| -rw-r--r-- | Functions/Zle/add-zle-hook-widget | 70 |
1 files changed, 39 insertions, 31 deletions
diff --git a/Functions/Zle/add-zle-hook-widget b/Functions/Zle/add-zle-hook-widget index 608a77607..760e26d29 100644 --- a/Functions/Zle/add-zle-hook-widget +++ b/Functions/Zle/add-zle-hook-widget @@ -1,18 +1,15 @@ # Add to HOOK the given WIDGET # # HOOK is one of isearch-exit, isearch-update, line-pre-redraw, line-init, -# line-finish, history-line-set, keymap-select (the zle- prefix is not -# required). +# line-finish, history-line-set, keymap-select (the zle- prefix is allowed +# but not required). If a widget corresponding to HOOK already exists, it +# is preserved and called first in the new set of HOOK widgets. # -# WIDGET may be of the form INDEX:NAME in which case the INDEX determines -# the order in which the widget executes relative to other hook widgets. -# Othewise the widget is assigned an index that appends it to the array. -# -# With -d, remove the widget from the hook instead; delete the hook -# variable if it is empty. +# With -d, remove the WIDGET from the hook instead; deletes the hook +# linkage if it is empty. # -# -D behaves like -d, but pattern characters are active in the -# widget name, so any matching widget will be deleted from the hook. +# -D behaves like -d, but pattern characters are active in WIDGET, so +# any matching widget will be deleted from the hook. # # Without -d, if the WIDGET is not already defined, a function having the # same name is marked for autoload; -U is passed down to autoload if that @@ -47,16 +44,15 @@ do # and we run them in number order zstyle -a $WIDGET widgets hook_widgets for hook in "${(@)${(@on)hook_widgets[@]}#<->:}"; do - zle "$hook" -Nw "$@" || return + if [[ "$hook" = user:* ]]; then + # Preserve $WIDGET within the renamed widget + zle "$hook" -N "$@" + else + zle "$hook" -Nw "$@" + fi || return done return 0 } - # Check for an existing widget, add it as the first hook - if [[ ${widgets[$hook]} = user:* ]]; then - zle -A "$hook" "${widgets[$hook]}" - zstyle -- "$hook" widgets 0:"${widgets[$hook]}" - zle -N "$hook" azhw:"$hook" - fi done # Redefine ourself with the setup left out @@ -133,17 +129,19 @@ function add-zle-hook-widget { else integer i=${#options[ksharrays]}-2 zstyle -g extant_hooks "$hook" widgets - if [[ "$fn" != <->:* ]]; then - if [[ -z ${(M)extant_hooks[@]:#(<->:|)$fn} ]]; then - # no index and not already hooked - # assign largest existing index plus 10 - i=${${(On@)${(@M)extant_hooks[@]#<->:}%:}[i]}+10 - else - return 0 - fi + # Check for an existing widget, add it as the first hook + if [[ ${widgets[$hook]} != "user:azhw:$hook" ]]; then + zle -A "$hook" "${widgets[$hook]}" + extant_hooks=(0:"${widgets[$hook]}" "${extant_hooks[@]}") + zle -N "$hook" azhw:"$hook" + fi + # Add new widget only if not already in the hook list + if [[ -z ${(M)extant_hooks[@]:#(<->:|)$fn} ]]; then + # no index and not already hooked + # assign largest existing index plus 1 + i=${${(On@)${(@M)extant_hooks[@]#<->:}%:}[i]}+1 else - i=${${(M)fn#<->:}%:} - fn=${fn#<->:} + return 0 fi extant_hooks+=("${i}:${fn}") zstyle -- "$hook" widgets "${extant_hooks[@]}" @@ -157,7 +155,17 @@ function add-zle-hook-widget { fi } -# Handle zsh autoloading conventions -if [[ "$zsh_eval_context" = *loadautofunc && ! -o kshautoload ]]; then - add-zle-hook-widget "$@" -fi +# Handle zsh autoloading conventions: +# - "file" appears last in zsh_eval_context when "source"-ing +# - "evalautofunc" appears with kshautoload set or autoload -k +# - "loadautofunc" appears with kshautoload unset or autoload -z +# - use of autoload +X cannot reliably be detected, use best guess +case "$zsh_eval_context" in +*file) ;; +*evalautofunc) ;; +*loadautofunc) add-zle-hook-widget "$@";; +*) [[ -o kshautoload ]] || add-zle-hook-widget "$@";; +esac +# Note fallback here is equivalent to the usual best-guess used by +# functions written for zsh before $zsh_eval_context was available +# so this case-statement is backward-compatible. |