source "$FEISTY_MEOW_SCRIPTS/core/common.alias"
# uncomment this to get extra noisy debugging.
-#export DEBUG_TERM_TITLE=true
+export DEBUG_TERM_TITLE=true
+
+##############
# puts a specific textual label on the terminal title bar.
# this doesn't consider any previous titles; it just labels the terminal.
fi
}
-# user friendly version that saves the title being added.
-function set_terminal_title()
+##############
+
+# records the current terminal title, pushing it down on the stack of titles,
+# possibly prior to a new one being used.
+function save_terminal_title()
{
- apply_title_to_terminal $*
+ local title="$*"
+
+ if [ -z "$title" ]; then
+echo "empty title: pushing current title again"
+ peek_title_stack
+ title="$LAST_TITLE"
+ if [ -z "$title" ]; then
+ echo "there was no saved title, so we're ignoring the save attempt."
+ return 1
+ fi
+ fi
-#tricky attempts to get it to be available when we ask for it in get_terminal_title
- sync
-# echo -n
+#hmmm: need a validation step here to remove bad chars that conflict with our title compression scheme.
-# # we're enforcing a new title from here on.
-# unset PRIOR_TERMINAL_TITLE
- save_terminal_title
+ # only slap a comma after the existing value if it wasn't empty.
+ if [ -z "$TERMINAL_TITLE_STACK" ]; then
+ export TERMINAL_TITLE_STACK="\"$title\""
+ else
+ export TERMINAL_TITLE_STACK="$TERMINAL_TITLE_STACK,\"$title\""
+ fi
+
+echo new terminal title stack is:
+echo $TERMINAL_TITLE_STACK
}
-# echoes back the current title on the terminal window, if we can acquire it.
-function get_terminal_title()
+# takes a terminal title off the stack and sets the LAST_TITLE variable.
+function pop_title_stack()
{
-#hmmm: totally failing since gnome doesn't provide the info we need like it should; WINDOWID is empty.
-#hmmm: need to revise this somehow to work around that, but nothing is quite right so far.
-#hmmm: had to disable the xwininfo approach because it's super messy (console noise) and still isn't right (just like xdotool approach wasn't right).
-
- # this is an important value now; it is checked for in save_terminal_title.
- local term_title_found="unknown"
- # save the former terminal title if we're running in X with xterm.
-
- # are we even running a terminal?
-#hmmm: abstract out that condition below to check against a list of names.
- if [[ "$TERM" =~ .*"xterm".* ]]; then
- # check that we have a window ID.
- if [[ ! -z "$WINDOWID" ]]; then
- # the window id exists in the variable; can we get its info?
- if [[ ! -z "$(which xprop)" ]]; then
- # sweet, we have all the info we need to get this done.
- term_title_found="$(xprop -id $WINDOWID | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
- fi
- else
- # gnome-terminal doesn't set WINDOWID currently; we can try to work around this.
- false
-#hmmm: so far, none of these approaches are any good.
-# # not good solution; gets wrong titles. plus uses xdotool which is not installed by default in ubuntu.
-# if [[ ! -z "$(which xdotool)" ]]; then
-# term_title_found="$(xprop -id $(xdotool getactivewindow) | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
-# fi
-# # this solution also fails by getting the wrong window title if this one isn't focussed.
-# if [[ ! -z "$(which xwininfo)" ]]; then
-# term_title_found=$(xwininfo -id $(xprop -root | awk '/NET_ACTIVE_WINDOW/ { print $5; exit }') | awk -F\" '/xwininfo:/ { print $2; exit }')
-# fi
- fi
+ # whack our output variable, just in case.
+ unset LAST_TITLE
+ # get our stack top.
+ peek_title_stack
+ # trim the popped item out of the stack.
+ if [ ! -z "$TERMINAL_TITLE_STACK" ]; then
+ TERMINAL_TITLE_STACK="$(echo $TERMINAL_TITLE_STACK | sed -n -e 's/\(.*\),[^,]*$/\1/p')"
fi
- echo -n "$term_title_found"
}
-# reads the current terminal title, if possible, and saves it to our record.
-function save_terminal_title()
+# like pop, but does not change the stack, effectively handing you the most
+# recently set title.
+function peek_title_stack()
{
- local title="$(get_terminal_title)"
- if [ "$title" != "unknown" ]; then
- # there was a title, so save it.
- if [ ! -z "$DEBUG_TERM_TITLE" ]; then
- echo "saving prior terminal title as '$title'"
- fi
- export PRIOR_TERMINAL_TITLE="$title"
- else
- # the terminal had no title, or we couldn't access it, or there's no terminal.
- if [ ! -z "$DEBUG_TERM_TITLE" ]; then
- echo "not saving prior terminal title which was empty"
+ # whack our output variable, just in case.
+ unset LAST_TITLE
+
+ if [ ! -z "$TERMINAL_TITLE_STACK" ]; then
+ LAST_TITLE="$(echo $TERMINAL_TITLE_STACK | sed -n -e 's/.*","\([^,]*\)"$/\1/p')"
+ if [ -z "$LAST_TITLE" ]; then
+ LAST_TITLE="$(echo $TERMINAL_TITLE_STACK | sed -n -e 's/"//gp')"
fi
fi
}
# using our stored terminal title, this replaces the title on the terminal.
function restore_terminal_title()
{
-# we don't want to emit anything extra if this is being driven by git.
-#hmmm... this could be a problem?
-# if [ -z "$(echo $* | grep git)" ]; then
-
# run the terminal labeller to restore the prior title, if there was one.
- if [ ! -z "$PRIOR_TERMINAL_TITLE" ]; then
+ pop_title_stack
+
+ if [ ! -z "$LAST_TITLE" ]; then
if [ ! -z "$DEBUG_TERM_TITLE" ]; then
- echo "restoring prior terminal title of '$PRIOR_TERMINAL_TITLE'"
+ echo "restoring prior terminal title of '$LAST_TITLE'"
+ echo "while new title stack is: $TERMINAL_TITLE_STACK"
fi
- apply_title_to_terminal "$PRIOR_TERMINAL_TITLE"
+ apply_title_to_terminal "$LAST_TITLE"
fi
}
function label_terminal_with_info()
{
# we only label the terminal anew if there's no saved title.
- if [ -z "$PRIOR_TERMINAL_TITLE" ]; then
+ if [ -z "$TERMINAL_TITLE_STACK" ]; then
if [ ! -z "$DEBUG_TERM_TITLE" ]; then
echo "showing new generated title since prior title was empty"
fi
fi
new_title="-- $user@$pruned_host -- [$date_string]"
apply_title_to_terminal "$new_title"
- save_terminal_title
+ save_terminal_title "$new_title"
else
# use the former title; paste it back up there just in case.
- if [ ! -z "$DEBUG_TERM_TITLE" ]; then
- echo "showing prior terminal title since there was a prior title!"
- echo "using prior terminal title of '$PRIOR_TERMINAL_TITLE'"
- fi
- apply_title_to_terminal "$PRIOR_TERMINAL_TITLE"
+ peek_title_stack
+ apply_title_to_terminal "$LAST_TITLE"
fi
}
+##############
+
+# user friendly version sets the terminal title and saves the title being added.
+function set_terminal_title()
+{
+ apply_title_to_terminal $*
+ save_terminal_title $*
+}
+
+##############
+
projects / feisty_meow.git / commitdiff