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Similar to r251236, r251242, and r251244. Introduce new function-pair to

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dialog(1) API in dialog.subr responsible for retrieving menu-choice data
(for the --menu widget).

Add f_dialog_menuitem_store()/f_dialog_menuitem_fetch() for storing and
retrieving the menuitem (not the tag) from a --menu widget result.

The dialog --menu widget returns the `tag' from the tag/item pair of choices
for a menu list. Because the menu list is often local to the function that
is displaying it, the ability to dereference this into the item is not
possible unless you use a global. This changes things so the function (upon
successful return of dialog) dereferences the tag into the item and stores
it for later retrieval using these functions.

NOTE: Tags are dereferenced into items using f_dialog_menutag2item().
This commit is contained in:
Devin Teske 2013-06-04 03:30:44 +00:00
parent bc1af55754
commit b5bd0bacd6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251361
4 changed files with 81 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
usr.sbin/bsdconfig/console/ttys
View File

@ -48,22 +48,6 @@ ipgm=$( f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" )
#
ETC_TTYS=/etc/ttys
############################################################ GLOBALS
#
# Terminal-type map/menu-item list
#
TTY_MENU_LIST="
'1 $msg_none' '$msg_none_ttys_desc'
'2 $msg_ibm_437_vga_default' 'cons25'
'3 $msg_iso_8859_1' 'cons25l1'
'4 $msg_iso_8859_2' 'cons25l2'
'5 $msg_iso_8859_7' 'cons25l7'
'6 $msg_koi8_r' 'cons25r'
'7 $msg_koi8_u' 'cons25u'
'8 $msg_us_ascii' 'cons25w'
" # END-QUOTE
############################################################ FUNCTIONS
# dialog_menu_main
@ -73,6 +57,16 @@ TTY_MENU_LIST="
dialog_menu_main()
{
local prompt="$msg_ttys_menu_text"
local menu_list="
'1 $msg_none' '$msg_none_ttys_desc'
'2 $msg_ibm_437_vga_default' 'cons25'
'3 $msg_iso_8859_1' 'cons25l1'
'4 $msg_iso_8859_2' 'cons25l2'
'5 $msg_iso_8859_7' 'cons25l7'
'6 $msg_koi8_r' 'cons25r'
'7 $msg_koi8_u' 'cons25u'
'8 $msg_us_ascii' 'cons25w'
" # END-QUOTE
local hline="$hline_choose_a_terminal_type"
local height width rows
@ -81,7 +75,7 @@ dialog_menu_main()
\"\$DIALOG_BACKTITLE\" \
\"\$prompt\" \
\"\$hline\" \
$TTY_MENU_LIST
$menu_list
local menu_choice
menu_choice=$( eval $DIALOG \
@ -92,11 +86,19 @@ dialog_menu_main()
--cancel-label \"\$msg_cancel\" \
--menu \"\$prompt\" \
$height $width $rows \
$TTY_MENU_LIST \
$menu_ist \
2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
)
local retval=$?
f_dialog_menutag_store -s "$menu_choice"
if [ $retval -eq $SUCCESS ]; then
local item
item=$( eval f_dialog_menutag2item \
\"\$menu_choice\" $menu_list )
f_dialog_menuitem_store "$item"
fi
return $retval
}
@ -187,7 +189,7 @@ while :; do
[ "$mtag" = "1 $msg_none" ] && break
consterm=$( eval f_dialog_menutag2item \"\$mtag\" $TTY_MENU_LIST )
f_dialog_menuitem_fetch consterm
err=$( ttys_set_type "$consterm" 2>&1 )
[ "$err" ] || break

38
usr.sbin/bsdconfig/share/dialog.subr
View File

@ -1770,6 +1770,44 @@ f_dialog_menutag_fetch()
return $SUCCESS
}
# f_dialog_menuitem_store [-s] $text
#
# Store the item from a dialog(1) menu (see f_dialog_menutag2item()) to be
# retrieved later by f_dialog_menuitem_fetch(). If the first argument is `-s',
# the text is sanitized before being stored.
#
f_dialog_menuitem_store()
{
local sanitize=
[ "$1" = "-s" ] && sanitize=1 && shift 1 # -s
local text="$1"
# Sanitize the menuitem before storing it if desired
[ "$sanitize" ] && f_dialog_data_sanitize text
setvar DIALOG_MENUITEM_$$ "$text"
}
# f_dialog_menuitem_fetch [$var_to_set]
#
# Obtain the menuitem chosen by the user from the most recently displayed
# dialog(1) menu (previously stored with f_dialog_menuitem_store() above). If
# $var_to_set is NULL or missing, output is printed to stdout (which is less
# recommended due to performance degradation; in a loop for example).
#
f_dialog_menuitem_fetch()
{
local __var_to_set="$1" __cp
debug= f_getvar DIALOG_MENUITEM_$$ "${__var_to_set:-__cp}" # get data
setvar DIALOG_MENUITEM_$$ "" # scrub memory in case data was sensitive
# Return the data on standard-out if desired
[ "$__var_to_set" ] || echo "$__cp"
return $SUCCESS
}
# f_dialog_default_store [-s] $text
#
# Store some text to be used later as the --default-item argument to dialog(1)

11
usr.sbin/bsdconfig/share/packages/packages.subr
View File

@ -360,9 +360,10 @@ f_package_index_get_page()
# only matters if there are multiple pages; which is determined by the global
# maximum $PACKAGE_MENU_PAGESIZE).
#
# On success, if the user doesn't press ESC or choose Cancel, the environment
# variable $DIALOG_MENUITEM_$$ will hold the item associated with the chosen
# tag (accessible through f_dialog_menutag_fetch()).
# On success, if the user doesn't press ESC or choose Cancel, use
# f_dialog_menuitem_fetch() to populate a local variable with the item (not
# tag) corresponding to the user's selection. The tag portion of the user's
# selection is available through f_dialog_menutag_fetch().
#
f_package_menu_select()
{
@ -499,7 +500,7 @@ f_package_menu_select()
local item
item=$( eval f_dialog_menutag2item${SHOW_DESC:+_with_help} \
\"\$menu_choice\" $menu_list )
setvar DIALOG_MENUITEM_$$ "$item"
f_dialog_menuitem_store "$item"
fi
return $retval
@ -739,7 +740,7 @@ f_package_config()
# Treat any other selection as a package
package="${menu_choice# }" # Trim leading space
f_str2varname $package varpkg
f_getvar DIALOG_MENUITEM_$$ mark
f_dialog_menuitem_fetch mark
mark="${mark#?}"
mark="${mark%%\] *}"
case "$mark" in

30
usr.sbin/bsdconfig/startup/rcvar
View File

@ -49,7 +49,6 @@ ipgm=$( f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" )
#
RCVAR_MAP=
_RCVAR_MAP=
RCVAR_MENU_LIST=
#
# Options
@ -66,15 +65,12 @@ RCVAR_MENU_LIST=
dialog_menu_main()
{
local prompt=
local hline="$hline_arrows_tab_enter"
local defaultitem= # Calculated below
# NOTE: Using a GLOBAL here because caller will need this list to turn
# the menu tag into the menu item with f_dialog_menutag2item()
RCVAR_MENU_LIST="
local menu_list="
'X $msg_exit' '$msg_exit_this_menu'
${SHOW_DESC:+'$msg_exit_this_menu'}
" # END-QUOTE
local hline="$hline_arrows_tab_enter"
local defaultitem= # Calculated below
if [ ! "$_RCVAR_MAP" ]; then
# Generate RCVAR_MAP of `rcvar dflt script desc ...' per-line
@ -84,7 +80,7 @@ dialog_menu_main()
export _RCVAR_MAP=1
fi
RCVAR_MENU_LIST="$RCVAR_MENU_LIST $(
menu_list="$menu_list $(
. "$RC_DEFAULTS" > /dev/null
source_rc_confs > /dev/null
for rcvar in $( echo "$RCVAR_MAP" | awk '{print $1}' ); do
@ -126,7 +122,7 @@ dialog_menu_main()
}'
)"
set -f # set noglob because descriptions in the $RCVAR_MENU_LIST may
set -f # set noglob because descriptions in the $menu_list may
# contain `*' and get expanded by dialog(1). This prevents
# dialog(1) from expanding wildcards in the help line.
@ -137,7 +133,7 @@ dialog_menu_main()
\"\$DIALOG_BACKTITLE\" \
\"\$prompt\" \
\"\$hline\" \
$RCVAR_MENU_LIST
$menu_list
# Obtain default-item from previously stored selection
f_dialog_default_fetch defaultitem
@ -154,13 +150,21 @@ dialog_menu_main()
--default-item \"\$defaultitem\" \
--menu \"\$prompt\" \
$height $width $rows \
$RCVAR_MENU_LIST \
$menu_list \
2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
)
local retval=$?
f_dialog_data_sanitize menu_choice
f_dialog_menutag_store "$menu_choice"
f_dialog_default_store "$menu_choice"
if [ $retval -eq $SUCCESS ]; then
local item
item=$( eval f_dialog_menutag2item${SHOW_DESC:+_with_help} \
\"\$menu_choice\" $menu_list )
f_dialog_menuitem_store "$item"
fi
return $retval
}
@ -193,10 +197,8 @@ while :; do
case "$mtag" in
"X $msg_exit") break ;;
*) # Anything else is an rcvar to toggle
rcvar="${mtag# }"
value=$( eval f_dialog_menutag2item${SHOW_DESC:+_with_help} \
\"\$mtag\" $RCVAR_MENU_LIST )
f_dialog_menuitem_fetch value
# Determine the new [toggled] value to use
case "$value" in