# bash completion for vncviewer                            -*- shell-script -*-

proc _vncviewer_bootstrap
{
    local fname
    match $[_realcommand vncviewer] {
        with *xvnc4viewer      setglobal fname = '_xvnc4viewer'    
        with *tightvncviewer   setglobal fname = '_tightvncviewer' 
        with *                 setglobal fname = '_known_hosts'    
    }

    # Install real completion for subsequent completions
    complete -F $fname vncviewer
    $fname  # Generate completions once for now
    unset -f _vncviewer_bootstrap
} &&
complete -F _vncviewer_bootstrap vncviewer

proc _tightvncviewer
{
    local cur prev words cword
    _init_completion || return

    match $prev {
        with -passwd
            _filedir
            return 0
            
        with -encodings
            setglobal COMPREPLY = ''( $( compgen -W 'copyrect tight hextile zlib corre rre
                raw' -- "$cur" ) )
            return 0
            
        with -via
            _known_hosts_real $cur
            return 0
            
    }


    if [[ "$cur" == -* ]] {
        setglobal 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_real $cur
    }
} &&
complete -F _tightvncviewer tightvncviewer


# NOTE: - VNC Viewer options are case insensitive.
#         Preferred case is taken from -help.
#       - Both single dash (-) and double dash (--) are allowed as option prefix
proc _xvnc4viewer
{
    local cur prev words cword
    _init_completion || return

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

    if [[ "$cur" == -* || "$cur" == --* ]] {
        # 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" == --* ]] && setglobal dash = '--' || setglobal dash = '-'

        local option oldNoCaseMatch=$[shopt -p nocasematch]
        shopt -s nocasematch
        setglobal COMPREPLY = ''( $( for option in "${options[@]}"; do
                [[ $dash$option == "$cur"* ]] && printf '%s\n' $dash$option
            done ) )
        eval $oldNoCaseMatch !2 >/dev/null
    } else {
        _known_hosts_real $cur
    }
} &&
complete -F _xvnc4viewer xvnc4viewer

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