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# -*- mode: shell-script; sh-basic-offset: 8; indent-tabs-mode: t -*-
# ex: ts=8 sw=8 noet filetype=sh
#
# bash completion for vncviewer


_vncviewer_bootstrap() {
	local fname
	case "$(_realcommand vncviewer)" in
		# If `vncviewer' not installed, default file-dir completion 
		'') _filedir `_get_cword` ;;
		*xvnc4viewer)      fname=_xvnc4viewer    ;;
		*tightvncviewer|*) fname=_tightvncviewer ;;
	esac
	if [ $fname ]; then
		# Install real completion for subsequent completions
		complete -F $fname vncviewer
		$fname  # Generate completions once for now
		unset -f _vncviewer_bootstrap
	fi
} &&
complete -F _vncviewer_bootstrap vncviewer


_tightvncviewer()
{
	local cur prev

	COMPREPLY=()
	cur=`_get_cword`
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case $prev in
		-passwd)
			_filedir
			return 0
			;;
		-encodings)
			COMPREPLY=( $( compgen -W 'copyrect tight hextile zlib \
				corre rre raw' -- $cur ) )
			return 0
			;;
		-via)
			_known_hosts
			return 0
			;;
	esac


	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-help -listen -via -shared -noshared\
			-viewonly -fullscreen -noraiseonbeep -passwd -encodings\
			-bgr233 -owncmap -truecolour -truecolor -depth \
			-compresslevel -quality -nojpeg -nocursorshape \
			-x11cursor' -- $cur ) )
	else
		_known_hosts
	fi
} &&
complete -F _tightvncviewer tightvncviewer


# NOTE: - VNC Viewer options are case-insensivite.  Preferred case is taken from -help.
#       - Both single dash (-) and double dash (--) are allowed as option prefix
_xvnc4viewer()
{
	local cur prev

	COMPREPLY=()
	cur=`_get_cword`
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# Convert double dash to single dash
	case ${prev/#--/-} in
		# -passwd, -PasswordFile
		-[pP][aA][sS][sS][wW][dD]|-[pP][aA][sS][sS][wW][oO][rR][dD][fF][iI][lL][eE])
			_filedir
			return 0
			;;
		# -PreferredEncoding
		-[pP][rR][eE][fF][eE][rR][rR][eE][dD][eE][nN][cC][oO][dD][iI][nN][gG])
			COMPREPLY=( $( compgen -W 'zrle hextile raw' -- $cur ) )
			return 0
			;;
		# -via
		-[vV][iI][aA])
			_known_hosts
			return 0
			;;
	esac

	if [[ "$cur" == -* || "$cur" == --* ]]; then
		# Default to vncviewer camelcase options, see `vncviewer -help'
		local dash options=( \
			AcceptClipboard AutoSelect DebugDelay display \
			DotWhenNoCursor FullColor FullColour FullScreen \
			geometry help listen Log \
			LowColourLevel MenuKey name Parent \
			passwd PasswordFile PointerEventInterval PreferredEncoding \
			SendClipboard SendPrimary Shared UseLocalCursor \
			via ViewOnly WMDecorationHeight WMDecorationWidth \
			ZlibLevel \
		)
		[[ "$cur" == --* ]] && dash=-- || dash=-
		# Is a `nocasematch' variable available (bash > v3.1)?
		if shopt nocasematch 2> /dev/null | grep -q ^nocasematch; then
			# Variable `nocasematch' is available
			# Use vncviewer camelcase options
			local option oldNoCaseMatch=$(shopt -p nocasematch)
			shopt -s nocasematch
			COMPREPLY=( $( for option in "${options[@]}"; do
				[[ $dash$option == "$cur"* ]] && echo $dash$option
			done ) )
			eval "$oldNoCaseMatch" 2> /dev/null
		else
			# Variable 'nocasematch' isn't available;
			# Convert completions to lowercase
			COMPREPLY=( $( compgen -W "$(
			    echo ${options[@]/#/$dash} | tr [:upper:] [:lower:]	
			)" -- "$(echo "$cur" | tr [:upper:] [:lower:])" ) )
		fi
	else
		_known_hosts
	fi
} &&
complete -F _xvnc4viewer xvnc4viewer