PC World 1998 October/PCWorld_1998-10_cd.bin/software/prehled/komix/DATA.Z/browservsc.tcl

Text File | 1997-11-13 | 5KB | 201 lines

#---------------------------------------------------------------------------
#
#      (c)     Cayenne Software Inc.    1997
#
#      File:           @(#)browservsc.tcl    /main/titanic/9
#      Author:         <generated>
#      Description:
#---------------------------------------------------------------------------
# SccsId = @(#)browservsc.tcl    /main/titanic/9   13 Nov 1997 Copyright 1997 Cayenne Software Inc.

# Start user added include file section
require platform.tcl
# End user added include file section

require_module_file "vscmdhandl.tcl" vcm

# Command handler for commands executed in the browser.

Class BrowserVSCmdHandler : {VSCmdHandler} {
    constructor
    method destructor
    method suspendAll
    method suspendOutput
    method execute
    method executeSilent
    method executeExternal
    method showOutput
    method error

    # Indicates whether browser output must be suspended.
    #
    attribute outputSuspended

    # Commands with unprocessed output.
    #
    attribute commands
}

constructor BrowserVSCmdHandler {class this name} {
    set this [VSCmdHandler::constructor $class $this $name]
    $this outputSuspended 0
    # Start constructor user section
    # End constructor user section
    return $this
}

method BrowserVSCmdHandler::destructor {this} {
    # Start destructor user section
    # End destructor user section
    $this VSCmdHandler::destructor
}


# Suspend all output from command execution.
#
method BrowserVSCmdHandler::suspendAll {this} {
    $this outputSuspended 1
    $this errorsSuspended 1
}


# Suspend command output except: one line output that can be put in the message area,
# error output.
#
method BrowserVSCmdHandler::suspendOutput {this} {
    $this outputSuspended 1
}


# Execute the command and classify the output.
# Show output depending on the outputSuspended and errorSuspended variables.
# If they are not set:
# If there is an error: show all output in error dialog.
# If not: Show last line of normal output in message area.
# Show warnings and additional info in warning dialog.
# Show other info in info dialog.
# If there is any suspended output add command to list.
#
method BrowserVSCmdHandler::execute {this command} {
    $command execute 1

    if { [$command errors] != "" } {
    if [$this errorsSuspended] {
        set commandList [$this commands]
        lappend commandList $command
        $this commands $commandList
        return 0
    }
    $this error "[$command description]:\n[$command errors]"
    return 0
    }

    if { [$command output] != "" } {
    set outputLines [split [$command output] "\n"]
    set lastLineIndex [expr [llength $outputLines] - 1]
    set lastLine [lindex $outputLines $lastLineIndex]
    set remainingLines [lrange $outputLines 0 [expr $lastLineIndex -1]]
    set remainingOutput [join $remainingLines "\n"]
    wmtkmessage "$lastLine"
    } else {
    set remainingLines ""
    set remainingOutput ""
    }

    if [$this outputSuspended] {
    if { ([$command warnings] != "") || ( $remainingLines != "" ) } {
        $command output $remainingOutput
        set commandList [$this commands]
        lappend commandList $command
        $this commands $commandList
    }
    return 1
    }

    wmtkmessage ""

    if { [$command warnings] != "" } {
    wmtkwarning "[$command warnings]\n$remainingOutput"
    return 1
    }

    if { $remainingLines != "" } {
    # if there already is an info box add to it
    if [isCommand .main.wmtkinfo] {
        set remainingOutput "[.main.wmtkinfo message]\n$remainingOutput"
        .main.wmtkinfo popDown
        .main.wmtkinfo delete
    }
    wmtkinfo "$remainingOutput"
    }
    return 1
}


# Execute the command, only handles errors if they occur.
#
method BrowserVSCmdHandler::executeSilent {this command} {
    $command execute 0
    if { [$command errors] != "" } {
    if { ![$this errorsSuspended] } {
        $this error "[$command description]:\n[$command errors]"
    }
    return 0
    }
    return 1
}


# Eexcute command in given tool:
# mtool, xtool or external.
#
method BrowserVSCmdHandler::executeExternal {this command tool {endCommand ""} {dir ""}} {
    if { $tool == "external" } {
    system "[$command command] &"
    return
    }

    .main startCommand $tool "[$command command]" "$endCommand" "" {0 0} 0 [list $dir]
}


# Process all supended command output and remove commands from list.
#
method BrowserVSCmdHandler::showOutput {this} {
    $this outputSuspended 0
    set warningsFound 0
    set outputList {}

    foreach command [$this commands] {
    lappend outputList [$command output]
    if { [$command warnings] != "" } {
        lappend outputList [$command warnings]
        set warningsFound 1
    }
    }

    $this commands ""

    set outputLines [join $outputList "\n"]
    if $warningsFound {
    wmtkwarning "$outputLines"
    return
    }

    # no output: show nothing
    if { [string trim $outputLines] == "" } {
    return
    }
    wmtkinfo "$outputLines"
}

method BrowserVSCmdHandler::error {this message} {
    wmtkerror "$message"
    if { !$win95 } {
    .main.error delHelpButton
    }
}

# Do not delete this line -- regeneration end marker