#!/usr/bin/env python
# twander - Wander around the file system
# Copyright (c) 2002-2003 TundraWare Inc. All Rights Reserved.
# For Updates See: http://www.tundraware.com/Software/twander
# Program Information
PROGNAME = "twander"
RCSID = "$Id: twander.py,v 2.74 2003/01/19 17:40:27 tundra Exp $"
VERSION = RCSID.split()[2]
# Copyright Information
DATE = "2002-2003"
CPRT = chr(169)
OWNER = "TundraWare Inc."
RIGHTS = "All Rights Reserved."
COPYRIGHT = "Copyright %s %s %s %s" % (CPRT, DATE, OWNER, RIGHTS)
#----------------------------------------------------------#
# Imports #
#----------------------------------------------------------#
import getopt
import mutex
import os
import re
from socket import getfqdn
from stat import *
import sys
import thread
import time
from Tkinter import *
from tkMessageBox import askyesno, showerror, showinfo, showwarning
from tkSimpleDialog import askstring
#####
# Imports conditional on OS
#####
# Set OS type - this allows us to trigger OS-specific code
# where needed.
OSNAME = os.name
# If we're on Win32, try to load win32all stuff if possible
WIN32ALL = FALSE
if OSNAME == 'nt':
try:
from win32api import GetLogicalDriveStrings as GetDrives
from win32api import GetUserName, GetFileAttributes, GetComputerName
import win32con
from win32security import *
WIN32HOST = GetComputerName()
WIN32ALL = TRUE
except:
WIN32ALL = FALSE
# Get unix password and group features
if OSNAME == 'posix':
import grp
import pwd
#----------------------------------------------------------#
# Variables User Might Change #
#----------------------------------------------------------#
#####
# Defaults
#####
#####
# Key Assignments
#####
# General Program Commands
CLRHIST = '<Control-w>' # Clear Command History
MOUSECTX = '<ButtonRelease-3>' # Pop-up Context Menu
MOUSEDIR = '<Shift-ButtonRelease-3>' # Pop-up Directory Menu
KEYPRESS = '<KeyPress>' # Any keypress (for commands)
QUITPROG = '<Control-q>' # Quit the program
READCONF = '<Control-r>' # Re-read the configuration file
REFRESH = '<Control-l>' # Refresh screen
TOGDETAIL = '<Control-t>' # Toggle detail view
TOGWIN32ALL = '<Control-w>' # Toggle win32all features, if available
# Directory Navigation
CHANGEDIR = '<Control-x>' # Enter a new path
DIRHOME = '<Control-h>' # Goto $HOME
DIRBACK = '<Control-b>' # Goto previous directory
DIRROOT = '<Control-j>' # Goto root directory
DIRSTART = '<Control-s>' # Goto starting directory
DIRUP = '<Control-u>' # Go up one directory level
DRIVELIST = '<Control-k>' # On Win32, display Drive List View if possible
MOUSEBACK = '<Control-Double-ButtonRelease-1>' # Go back one directory with mouse
MOUSEUP = '<Control-Double-ButtonRelease-3>' # Go up one directory with mouse
# Selection Keys
SELALL = '<Control-comma>' # Select all items
SELINV = '<Control-i>' # Invert the current selection
SELNONE = '<Control-period>' # Unselect all items
SELNEXT = '<Control-n>' # Select next item
SELPREV = '<Control-p>' # Select previous item
SELEND = '<Control-e>' # Select bottom item
SELTOP = '<Control-a>' # Select top item
# Scrolling Commands
PGDN = '<Control-v>' # Move page down
PGUP = '<Control-c>' # Move page up
PGRT = '<Control-g>' # Move page right
PGLFT = '<Control-f>' # Move page left
# Execute Commands
RUNCMD = '<Control-z>' # Run arbitrary user command
SELKEY = '<Return>' # Select item w/keyboard
MOUSESEL = '<Double-ButtonRelease-1>' # Select item w/mouse
# Name The Key/Mouse Assignments Which We Do Not Allow To Be Rebound In The Config File
NOREBIND = ["MOUSECTX", "MOUSEDIR", "MOUSEBACK", "MOUSEUP", "MOUSESEL"]
#####
# System-Related Defaults
#####
# Default startup directory
STARTDIR = os.path.abspath("." + os.sep)
# Home director
HOME = os.getenv("HOME") or STARTDIR
#####
# Program Constants
#####
HEIGHT = 25
WIDTH = 110
#####
# Default Colors
#####
# Main Display Colors
BCOLOR = "black"
FCOLOR = "green"
# Menu Colors
MBARCOL = "beige"
MBCOLOR = "beige"
MFCOLOR = "black"
# Help Screen Colors
HBCOLOR = "lightgreen"
HFCOLOR = "black"
#####
# Default Display Fonts
#####
# Main Display Font
FNAME = "Courier"
FSZ = 12
FWT = "bold"
# Menu Font
MFNAME = "Courier"
MFSZ = 12
MFWT = "bold"
# Help Screen Font
HFNAME = "Courier"
HFSZ = 10
HFWT = "italic"
#------------------- Nothing Below Here Should Need Changing ------------------#
#----------------------------------------------------------#
# Constants & Literals #
#----------------------------------------------------------#
#####
# Booleans
#####
# Don't need to define TRUE & FALSE - they are defined in the Tkinter module
#####
# Defaults
#####
AUTOREFRESH = TRUE # Automatically refresh the directory display
DEBUGLEVEL = 0 # No debug output
MAXDIRBUF = 250 # Maximum size of UI.AllDirs
MAXHISTBUF = 250 # Maximum size of UI.CmdHist
NODETAILS = FALSE # TRUE means details can never be displayed
NONAVIGATE = FALSE # TRUE means that all directory navigation is prevented
USETHREADS = TRUE # Use threads on Unix
USEWIN32ALL = TRUE # Use win32all features if available
WIN32ALLON = TRUE # Flag for toggling win32all features while running
WARN = TRUE # Warnings on
#####
# Constants
#####
# General Constants
KB = 1024 # 1 KB constant
MB = KB * KB # 1 MB constant
GB = MB * KB # 1 GB constant
POLLINT = 20 # Interval (ms) the poll routine should run
REFRESHINT = 3000 # Interval (ms) for automatic refresh
# Get hostname
HOSTNAME = getfqdn() # Full name of this host
# Get the user name
if OSNAME == 'nt':
if WIN32ALL and USEWIN32ALL and WIN32ALLON:
USERNAME = GetUserName()
else:
USERNAME = os.getenv("LOGNAME")
elif OSNAME == 'posix':
USERNAME = os.getenv("USER")
else:
USERNAME = ""
# Concatenate them if we got a user name
if USERNAME:
FULLNAME = "%s@%s" % (USERNAME, HOSTNAME)
else:
FULLNAME = HOSTNAME
# Key & Button Event Masks
ShiftMask = (1<<0)
LockMask = (1<<1)
ControlMask = (1<<2)
Mod1Mask = (1<<3)
Mod2Mask = (1<<4)
Mod3Mask = (1<<5)
Mod4Mask = (1<<6)
Mod5Mask = (1<<7)
Button1Mask = (1<<8)
Button2Mask = (1<<9)
Button3Mask = (1<<10)
Button4Mask = (1<<11)
Button5Mask = (1<<12)
# There are some event bits we don't care about -
# We'll use the following constant to mask them out
# later in the keyboard and mouse handlers.
DontCareMask = LockMask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask
# Some things are OS-dependent
if OSNAME == 'nt':
AltMask = (1<<17)
DontCareMask |= Mod1Mask # Some versions of Win32 set this when Alt is pressed
else:
AltMask = Mod1Mask
# Stat-Related Constants
if WIN32ALL and USEWIN32ALL and WIN32ALLON:
# Used with win32all-based permissions logic.
# Format for each entry is: (mask to test, symbol if true).
# Position in tuple determines position in display.
win32all_mode = ((win32con.FILE_ATTRIBUTE_DIRECTORY, 'd'),
(win32con.FILE_ATTRIBUTE_ARCHIVE, 'A'),
(win32con.FILE_ATTRIBUTE_COMPRESSED, 'C'),
(win32con.FILE_ATTRIBUTE_HIDDEN, 'H'),
(win32con.FILE_ATTRIBUTE_NORMAL, 'N'),
(win32con.FILE_ATTRIBUTE_READONLY, 'R'),
(win32con.FILE_ATTRIBUTE_SYSTEM, 'S'))
# Permissions
ST_PERMIT = ["---", "--x", "-w-", "-wx",
"r--", "r-x", "rw-", "rwx"]
# Special file type lookup
ST_SPECIALS = {"01":"p", "02":"c", "04":"d", "06":"b",
"10":"-", "12":"l", "14":"s"}
# Size of each status display field including trailing space
# These are sized for the worst-case: Win32 with win32all features
ST_SZMODE = 12
ST_SZNLINK = 5
ST_SZUNAME = 18
ST_SZGNAME = 18
ST_SZLEN = 12
ST_SZMTIME = 18
ST_SZTOTAL = ST_SZMODE + ST_SZNLINK + ST_SZUNAME + ST_SZGNAME + \
ST_SZLEN + ST_SZMTIME
# String used to separate symlink entry from its real path
SYMPTR = " -> "
#####
# General Literals
#####
PSEP = os.sep # Character separating path components
SHOWDRIVES = '\\\\' # Logical directory name for Win32 Drive Lists
#####
# GUI-Related Contsants
####
ROOTBORDER = 1
MENUBORDER = 2
MENUPADX = 2
MENUOFFSET = ROOTBORDER + MENUBORDER + MENUPADX
#####
# Configuration File Related Constants
#####
ASSIGN = "=" # Assignment for variable definitions
CONF = "" # Config file user selected with -c option
COMMENT = r"#" # Comment introducer string
ENVVBL = r'$' # Symbol denoting an environment variable
MAXDIR = 32 # Maximum number of directories to track
MAXHIST = 32 # Maximum length of Command History
MAXNESTING = 32 # Maximum depth of nested variable definitions
QUOTECHAR = '\"' # Character to use when quoting Built-In Variables
# Variable Name Pattern Matching Stuff
DIRSC = "DIRSC" # Directory Shortcut naming
reDIRSC = r'^' + DIRSC + r'\d{1,2}$' # Regex describing Directory Shortcut names
reVAR = r"\[.+?\]" # Regex describing variable notation
# Create actual regex matching engines
REDIRSC = re.compile(reDIRSC)
REVAR = re.compile(reVAR)
# Built-In Variables
DIR = r'[DIR]'
DSELECTION = r'[DSELECTION]'
DSELECTIONS = r'[DSELECTIONS]'
HASH = r'[HASH]'
PROMPT = r'[PROMPT:'
SELECTION = r'[SELECTION]'
SELECTIONS = r'[SELECTIONS]'
YESNO = r'[YESNO:'
#----------------------------------------------------------#
# Prompts, & Application Strings #
#----------------------------------------------------------#
#####
# Menu, Error, Information, & Warning Messages
#####
# Menu-Related Strings
# Menu Button Titles
COMMANDMENU = 'Commands' # Title for Command Menu button
DIRMENU = 'Directories' # Title for Directory Menu button
HISTMENU = 'History' # Title for History Menu button
HELPMENU = 'Help' # Title for Help Menu button
# Help Menu-Related
hABOUT = 'About'
hCOMMANDS = 'Command Definitions'
hDIRSC = 'Directory Shortcuts'
hINTVBLS = 'Internal Program Variables'
hKEYS = 'Keyboard Assignments'
hNONE = 'No %s Found.'
hOPTVBLS = 'User-Settable Options'
hUSERVBLS = 'User-Defined Variables'
# Errors
eBADROOT = " %s Is Not A Directory"
eDIRRD = "Cannot Open Directory : %s --- Check Permissions."
eERROR = "ERROR"
eINITDIRBAD = "Cannot Open Starting Directory : %s - Check Permissions - ABORTING!."
eOPEN = "Cannot Open File: %s"
eTOOMANY = "You Can Only Specify One Starting Directory."
# Information
iNOSTAT = "Details Unavailable For This File ->"
# Prompts
pCHPATH = "Change Path"
pENCMD = "Enter Command To Run:"
pENPATH = "Enter New Path Desired:"
pMANUALCMD = "Manual Command Entry"
pRUNCMD = "Run Command"
# Warnings
wBADCFGLINE = "Ignoring Line %s.\nBogus Configuration Entry:\n\n%s"
wBADENVVBL = "Ignoring Line %s.\nEnvironment Variable %s Not Set:\n\n%s"
wBADEXE = "Could Not Execute Command:\n\n%s"
wBADRHS = "Ignoring Line %s.\nOption Assignment Has Bad Righthand Side:\n\n%s"
wBADSCNUM = "Ignoring Line %s.\nShortcut Number Must Be From 1-12:\n\n%s"
wCONFOPEN = "Cannot Open Configuration File:\n%s"
wDIRSCREDEF = "Ignoring Line %s.\nDirectory Shortcut Defined More Than Once:\n\n%s"
wDUPKEY = "Ignoring Line %s.\nFound Duplicate Command Key '%s':\n\n%s"
wLINKBACK = "%s Points Back To Own Directory"
wNOCMDS = "Running With No Commands Defined!"
wNOREBIND = "Ignoring Line %s.\nCannot Rebind This Keyboard Or Mouse Button Combination:\n\n%s"
wREDEFVAR = "Ignoring Line %s.\nVariable %s Redefined:\n\n%s"
wUNDEFVBL = "Ignoring Line %s.\nUndefined Variable %s Referenced:\n\n%s"
wVBLTOODEEP = "Ignoring Line %s.\nVariable Definition Nested Too Deeply:\n\n%s"
wWARN = "WARNING"
#####
# Debug-Related Stuff
#####
# Debug Levels
DEBUGQUIT = (1<<0) # Dump debug info and quit program
DEBUGVARS = (1<<1) # Dump internal variables
DEBUGSYMS = (1<<2) # Dump symbol table
DEBUGCTBL = (1<<3) # Dump command table
DEBUGCMDS = (1<<4) # Dump command execution string
DEBUGKEYS = (1<<5) # Dump key bindings
DEBUGDIRS = (1<<6) # Dump directory stack contents as it changes
DEBUGHIST = (1<<7) # Dump contents of Command History stack after command execution
# Debug Strings
dCMD = "COMMAND"
dCMDTBL = hCOMMANDS
dDIRSTK = "DIRECTORY STACK"
dFUNCKEYS = hDIRSC
dHEADER = "twander Debug Dump Run On: %s\n"
dHIST = "COMMAND HISTORY STACK"
dINTVAR = hINTVBLS
dKEYBINDS = hKEYS
dNULL = "None"
dOPTVAR = hOPTVBLS
dSYMTBL = hUSERVBLS
# List of internal program variables to dump during debug sessions
DebugVars = ["RCSID", "OSNAME", "HOSTNAME", "USERNAME", "OPTIONS", "CONF", "HOME", "PSEP", "POLLINT"]
#####
# Usage Information
#####
uTable = [PROGNAME + " " + VERSION + " - %s\n" % COPYRIGHT,
"usage: " + PROGNAME + " [-cdhqrstvwxy] [startdir] where,\n",
" startdir name of directory in which to begin (default: current dir)",
" -c file name of configuration file (default: $HOME/." + PROGNAME +
" or PROGDIR/." + PROGNAME + ")",
" -d level set debugging level (default: 0, debugging off)",
" -h print this help information",
" -q quiet mode - no warnings (default: warnings on)",
" -r turn off automatic content refreshing (default: refresh on)",
" -t no quoting when substituting Built-In Variables (default: quoting on)",
" -v print detailed version information",
" -x width window width (default: 110)",
" -y height window height (default: 25)",
]
#---------------------------Code Begins Here----------------------------------#
#----------------------------------------------------------#
# General Support Functions #
#----------------------------------------------------------#
#####
# Print An Error Message
#####
def ErrMsg(emsg):
showerror(PROGNAME + " " + VERSION + " " + eERROR, emsg)
# End of 'ErrMsg()'
#####
# Build List Of Win32 Drives
#####
def GetWin32Drives():
# Get Win32 drive string, split on nulls, and get
# rid of any resulting null entries.
if WIN32ALL and USEWIN32ALL and WIN32ALLON:
return filter(lambda x : x, GetDrives().split('\x00'))
else:
return ""
# End of 'GetWin32Drives()'
#####
# Convert A File Size Into Equivalent String With Scaling
# Files under 1 MB show actual length
# Files < 1 MB < 1 GB shown in KB
# Files 1 GB or greater, shown in MB
#####
def FileLength(flen):
if flen >= GB:
flen = str(flen/MB) + "m"
elif flen >= MB:
flen = str(flen/KB) + "k"
else:
flen = str(flen)
return flen
# End of 'FileLength()'
#####
# Parse & Process The Configuraton File
# This is called once at program start time
# and again any time someone hits the READCONF key
# while the program is running.
#####
def ParseConfFile(event, DoOptionsProcessing=TRUE):
global CONF, UI
# Cleanout any old configuration data
UI.CmdTable = {}
UI.FuncKeys = ["", "", "", "", "", "",
"", "", "", "", "", ""]
UI.SymTable = {}
linenum = 0
# Unbind all existing key bindings
for x in UI.KeyBindings.keys():
UI.DirList.unbind(UI.KeyBindings[x])
# Initialize keyboard binding variables to their defaults
# These may be overriden in the configuration file
# parsing process.
UI.KeyBindings = {"CLRHIST":CLRHIST,
"MOUSECTX":MOUSECTX,
"MOUSEDIR":MOUSEDIR,
"KEYPRESS":KEYPRESS,
"QUITPROG":QUITPROG,
"READCONF":READCONF,
"REFRESH":REFRESH,
"TOGDETAIL":TOGDETAIL,
"TOGWIN32ALL":TOGWIN32ALL,
"CHANGEDIR":CHANGEDIR,
"DIRHOME":DIRHOME,
"DIRBACK":DIRBACK,
"DIRROOT":DIRROOT,
"DIRSTART":DIRSTART,
"DIRUP":DIRUP,
"DRIVELIST":DRIVELIST,
"MOUSEBACK":MOUSEBACK,
"MOUSEUP":MOUSEUP,
"SELALL":SELALL,
"SELINV":SELINV,
"SELNONE":SELNONE,
"SELNEXT":SELNEXT,
"SELPREV":SELPREV,
"SELEND":SELEND,
"SELTOP":SELTOP,
"PGDN":PGDN,
"PGUP":PGUP,
"PGRT":PGRT,
"PGLFT":PGLFT,
"RUNCMD":RUNCMD,
"SELKEY":SELKEY,
"MOUSESEL":MOUSESEL
}
# Set all the program options to their default values
# This means that a configuration file reload can
# override the options set previously in the environment
# variable or on the command line.
for x in (UI.OptionsBoolean, UI.OptionsNumeric, UI.OptionsString):
for o in x.keys():
globals()[o] = x[o]
# Initialize the command menu
UI.CmdBtn.menu.delete(0,END)
# And disable it
UI.CmdBtn.config(state=DISABLED)
# If user specified a config file, try that
# Otherwise use HOME == either $HOME or ./
if not CONF:
CONF = os.path.join(HOME, "." + PROGNAME)
try:
cf = open(CONF)
# Successful open of config file - Begin processing it
# Process and massage the configuration file
for line in cf.read().splitlines():
linenum += 1
# Parse this line
if line:
ParseLine(line, linenum)
# Close the config file
cf.close()
except:
WrnMsg(wCONFOPEN % CONF)
# Make sure any options we've changed are implemented
if DoOptionsProcessing:
ProcessOptions()
# End of 'ParseConfFile()'
#####
# Parse A Line From A Configuration File
#####
def ParseLine(line, num):
global UI
# Get rid of trailing newline, if any
if line[-1] == '\n':
line = line[:-1]
# Strip comments out
idx = line.find(COMMENT)
if idx > -1:
line = line[:idx]
# Split what's left into separate fields again
fields = line.split()
# Make a copy of the fields which is guaranteed to have at
# least two fields for use in the variable declaration tests.
dummy = fields[:]
dummy.append("")
#####
# Blank Lines - Ignore
#####
if len(fields) == 0:
pass
#####
# Variable Definitions
#####
# A valid variable definition can
# be 1, 2, or 3 fields:
#
# x=y - 1 field
# x= y - 2 fields
# x =y
# x = y - 3 fields
#
# But this is not legit:
#
# =.......
#
# However, the assignment character
# must always been in the 1st or second
# field. If it is a 3rd field, it is not
# a variable definition, but a command definition.
#
# If the LHS is one of the Program Function Names
# used in key binding, the statement is understood
# to be a key rebinding, not a user variable definition.
#
# If the LHS is one of the Directory Shortcut variables,
# the RHS is added to the Directory Menu and assigned
# to the associated Function Key (1-12).
#
# Finally, the LHS cannot be one of the program
# Built-In Variables - it is an error, for example,
# to have something like:
#
# DIR = string
#
# because "DIR" is a Built-In Variable name.
#
elif ((dummy[0].count(ASSIGN) + dummy[1].count(ASSIGN)) > 0) and (fields[0][0] != ASSIGN):
assign = line.find(ASSIGN)
name = line[:assign].strip()
val=line[assign+1:].strip()
# Error out on variable redefinitions of either
# existing user-defined variables or built-ins
if UI.SymTable.has_key(name) or \
UI.BuiltIns.has_key('[' + name + ']') or \
UI.BuiltIns.has_key('[' + name):
WrnMsg(wREDEFVAR % (num, name, line))
return
# Handle Directory Shortcut entries.
if REDIRSC.match(name):
# Get shortcut number
sc = int(name.split(DIRSC)[1])
# Process if 1-12
if 0 < sc < 13:
# Ignore attempts to redefine a shortcut within the config file
if UI.FuncKeys[sc-1]:
WrnMsg(wDIRSCREDEF % (num, line))
return
# Everything OK - process the entry
else:
# Associate the directory with the correct function key
UI.FuncKeys[sc-1] = val
# Add to Directory Menu making sure it is PSEP-terminated
if val and (val[-1] != PSEP):
val += PSEP
if val:
UpdateDirMenu(val)
# User specified an invalid shortcut number
else:
WrnMsg(wBADSCNUM % (num, line))
return
# Process any option variables
elif name in UI.OptionsBoolean.keys():
val = val.upper()
if val == 'TRUE' or val == 'FALSE':
globals()[name] = eval(val) # !!! Cheater's way to get to global variables.
else:
WrnMsg(wBADRHS % (num, line))
return
elif name in UI.OptionsNumeric.keys():
try:
globals()[name] = int(val)
except:
WrnMsg(wBADRHS % (num, line))
return
elif name in UI.OptionsString.keys():
# RHS cannot be null
if not val:
WrnMsg(wBADRHS % (num, line))
return
else:
globals()[name] = val
# Process other variable types.
# Distinguish between internal program variables and
# user-defined variables and act accordingly. We inhibit
# the rebinding of certain, special assignments, however.
elif name in UI.KeyBindings.keys():
if name in NOREBIND:
WrnMsg(wNOREBIND % (num, line))
return
else:
UI.KeyBindings[name] = val
else:
UI.SymTable[name] = val
#####
# Command Definitions
#####
elif len(fields[0]) == 1:
# Must have at least 3 fields for a valid command definition
if len(fields) < 3:
WrnMsg(wBADCFGLINE % (num, line))
return
else:
cmdkey = fields[0]
cmdname = fields[1]
cmd = " ".join(fields[2:])
# Process any User-Defined variables
cmd = ProcessVariables(cmd, num, line)
# A null return means there was a problem - abort
if not cmd:
return
# Add the command entry to the command table.
# Prevent duplicate keys from being entered.
if UI.CmdTable.has_key(cmdkey):
WrnMsg(wDUPKEY % (num, cmdkey, line))
return
else:
UI.CmdTable[cmdkey] = [cmdname, cmd]
UI.CmdBtn.menu.add_command(label=cmdname + " " * (15-len(cmdname)) + "(" + cmdkey + ")",
command=lambda cmd=cmdkey: CommandMenuSelection(cmd))
else:
WrnMsg(wBADCFGLINE % (num, line))
# End of 'ParseLine()'
#####
# Print Debug Information On stdout
#####
def PrintDebug(title, content):
print '<%s>\n' % title.upper()
if content:
for i in content:
print i
else:
print dNULL
print
# End of 'PrintDebug()'
#####
# Strip Trailing Path Separator
#####
def StripPSEP(s):
if s and s[-1] == PSEP:
return s[:-1]
else:
return s
# End of 'StripPSEP()'
#####
# Print Usage Information
#####
def Usage():
for x in uTable:
print x
# End of 'Usage()'
#####
# Print A Warning Message
#####
def WrnMsg(wmsg):
if WARN:
showwarning(PROGNAME + " " + VERSION + " " + wWARN, wmsg)
# End of 'WrnMsg()'
#----------------------------------------------------------#
# GUI Definition #
#----------------------------------------------------------#
#####
# Enacapsulate the UI in a class
#####
class twanderUI:
def __init__(self, root):
# Setup Menubar frame
self.mBar = Frame(root, relief=RAISED, borderwidth=MENUBORDER)
self.mBar.pack(fill=X)
# Setup the Command Menu
self.CmdBtn = Menubutton(self.mBar, text=COMMANDMENU, underline=0, state=DISABLED)
self.CmdBtn.menu = Menu(self.CmdBtn)
self.CmdBtn.pack(side=LEFT, padx=MENUPADX)
# Setup the Directory Menu
self.DirBtn = Menubutton(self.mBar, text=DIRMENU, underline=0, state=DISABLED)
self.DirBtn.menu = Menu(self.DirBtn)
self.DirBtn.pack(side=LEFT, padx=MENUPADX)
# Setup the History Menu
self.HistBtn = Menubutton(self.mBar, text=HISTMENU, underline=0, state=DISABLED)
self.HistBtn.menu = Menu(self.HistBtn)
self.HistBtn.pack(side=LEFT, padx=MENUPADX)
# Setup the Help Menu
self.HelpBtn = Menubutton(self.mBar, text=HELPMENU, underline=2, state=DISABLED)
self.HelpBtn.menu = Menu(self.HelpBtn)
self.HelpBtn.pack(side=LEFT, padx=MENUPADX)
# Setup the cascading submenus
self.UserVbls = Menu(self.HelpBtn.menu, foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
self.CmdDefs = Menu(self.HelpBtn.menu, foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
self.IntVbls = Menu(self.HelpBtn.menu, foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
self.OptVbls = Menu(self.HelpBtn.menu, foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
self.Keys = Menu(self.HelpBtn.menu, foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
self.DirSCs = Menu(self.HelpBtn.menu, foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
# Setup the Directory Listing and Scrollbars
self.hSB = Scrollbar(root, orient=HORIZONTAL)
self.vSB = Scrollbar(root, orient=VERTICAL)
self.DirList = Listbox(root, selectmode=EXTENDED, exportselection=0,
xscrollcommand=self.hSB.set, yscrollcommand=self.vSB.set)
# Make them visible by packing
self.hSB.config(command=self.DirList.xview)
self.hSB.pack(side=BOTTOM, fill=X)
self.vSB.config(command=self.DirList.yview)
self.vSB.pack(side=RIGHT, fill=Y)
self.DirList.pack(side=LEFT, fill=BOTH, expand=1)
# End of method 'twanderUI.__init__()'
#####
# Bind the relevant event handlers
#####
def BindAllHandlers(self):
###
# General Program Commands
###
# Bind handler to invoke Clear Command History
self.DirList.bind(self.KeyBindings["CLRHIST"], ClearHistory)
# Bind handler to invoke Context Menu
self.DirList.bind(self.KeyBindings["MOUSECTX"], MouseClick)
# Bind handler to invoke Directory Menu
self.DirList.bind(self.KeyBindings["MOUSEDIR"], MouseClick)
# Bind handler for individual keystrokes
self.DirList.bind(self.KeyBindings["KEYPRESS"], KeystrokeHandler)
# Bind handler for "Quit Program"
self.DirList.bind(self.KeyBindings["QUITPROG"], KeyQuitProg)
# Bind handler for "Read Config File"
self.DirList.bind(self.KeyBindings["READCONF"], ParseConfFile)
# Bind handler for "Refresh Screen"
self.DirList.bind(self.KeyBindings["REFRESH"], RefreshDirList)
# Bind handler for "Toggle Detail"
self.DirList.bind(self.KeyBindings["TOGDETAIL"], KeyToggleDetail)
# Bind handler for "Toggle win32all Features"
self.DirList.bind(self.KeyBindings["TOGWIN32ALL"], KeyToggleWin32All)
###
# Directory Navigation
###
# Bind handler for "Change Directory"
self.DirList.bind(self.KeyBindings["CHANGEDIR"], KeyChangeDir)
# Bind handler for "Home Dir"
self.DirList.bind(self.KeyBindings["DIRHOME"], KeyHomeDir)
# Bind handler for "Previous Dir"
self.DirList.bind(self.KeyBindings["DIRBACK"], KeyBackDir)
# Bind handler for "Root Dir"
self.DirList.bind(self.KeyBindings["DIRROOT"], KeyRootDir)
# Bind handler for "Starting Dir"
self.DirList.bind(self.KeyBindings["DIRSTART"], KeyStartDir)
# Bind handler for "Up Dir"
self.DirList.bind(self.KeyBindings["DIRUP"], KeyUpDir)
# Bind handler for "Display Drive View"
self.DirList.bind(self.KeyBindings["DRIVELIST"], KeyDriveList)
# Bind handler for "Mouse Back Dir"
self.DirList.bind(self.KeyBindings["MOUSEBACK"], MouseDblClick)
# Bind handler for "Mouse Up Dir"
self.DirList.bind(self.KeyBindings["MOUSEUP"], MouseDblClick)
###
# Selection Keys
###
# Bind handler for "Select All"
self.DirList.bind(self.KeyBindings["SELALL"], KeySelAll)
# Bind handler for "Invert Current Selection"
self.DirList.bind(self.KeyBindings["SELINV"], KeySelInv)
# Bind handler for "Select No Items"
self.DirList.bind(self.KeyBindings["SELNONE"], KeySelNone)
# Bind handler for "Next Item"
self.DirList.bind(self.KeyBindings["SELNEXT"], KeySelNext)
# Bind handler for "Previous Item"
self.DirList.bind(self.KeyBindings["SELPREV"], KeySelPrev)
# Bind handler for "First Item"
self.DirList.bind(self.KeyBindings["SELTOP"], KeySelTop)
# Bind handler for "Last Item"
self.DirList.bind(self.KeyBindings["SELEND"], KeySelEnd)
###
# Scrolling Keys
###
# Bind Handler for "Move Page Down
self.DirList.bind(self.KeyBindings["PGDN"], KeyPageDown)
# Bind Handler for "Move Page Up"
self.DirList.bind(self.KeyBindings["PGUP"], KeyPageUp)
# Bind Handler for "Move Page Right"
self.DirList.bind(self.KeyBindings["PGRT"], KeyPageRight)
# Bind Handler for "Move Page Up"
self.DirList.bind(self.KeyBindings["PGLFT"], KeyPageLeft)
###
# Execute commands
###
# Bind handler for "Run Command"
self.DirList.bind(self.KeyBindings["RUNCMD"], KeyRunCommand)
# Bind handler for "Item Select"
self.DirList.bind(self.KeyBindings["SELKEY"], DirListHandler)
# Bind handler for "Mouse Select"
self.DirList.bind(self.KeyBindings["MOUSESEL"], MouseDblClick)
#####
# Function Keys
#####
# Bind function keys to a common handler
for x in range(len(self.FuncKeys)):
self.DirList.bind('<F%d>' % (x+1), lambda event, index=x :FuncKeypress(index))
# Give the listbox focus so it gets keystrokes
self.DirList.focus()
# End Of method 'twanderUI.BindAllHandlers()
#####
# Return tuple of all selected items
#####
def AllSelection(self):
sellist = []
# On Win32 Systems a Drive List View is always forced
# to display with no details. So we have to consider this
# when figuring out where the selection name begins.
if self.CurrentDir == SHOWDRIVES:
nameindex = 0
else:
nameindex = self.NameFirst
for entry in self.DirList.curselection():
sellist.append(self.DirList.get(entry)[nameindex:].split(SYMPTR)[0])
return sellist
# End of method 'twanderUI.AllSelection()'
#####
# Return name of currently selected item
#####
def LastInSelection(self):
# As above in AllSelection()
if self.CurrentDir == SHOWDRIVES:
nameindex = 0
else:
nameindex = self.NameFirst
index = self.DirList.curselection()
if index:
return self.DirList.get(index[-1])[nameindex:].split(SYMPTR)[0]
else:
return ""
# End of method 'twanderUI.LastInSelection()'
#####
# Support periodic polling to make sure widget stays
# in sync with reality of current directory.
#####
def poll(self):
# If new dir entered via mouse, force correct activation
if self.MouseNewDir:
self.DirList.activate(0)
self.MouseNewDir = FALSE
# See if its time to do a refresh
if AUTOREFRESH:
self.ElapsedTime += POLLINT
if self.ElapsedTime >= REFRESHINT:
RefreshDirList()
self.ElapsedTime = 0
# Setup next polling event
self.DirList.after(POLLINT, self.poll)
# End of method 'twanderUI.poll()'
#####
# Set Detailed View -> FALSE == No Details, TRUE == Details
#####
def SetDetailedView(self, details):
# See if we're forcing details to always be off
if NODETAILS:
self.DetailsOn = FALSE
else:
self.DetailsOn = details
# Tell system where actual file name begins
# For both choices below, we have to set the UI.NameFirst
# value. This tells other handlers where in a given
# selection the actual name of the file can be found.
# This is necessary because we may be selecting a from
# a detailed view and need to know where in that view
# the file name lives. It is not good enough to just
# split() the selected string and use the [-1] entry because
# we may be dealing with a file which has spaces in its
# name.
if self.DetailsOn:
self.NameFirst = ST_SZTOTAL
else:
self.NameFirst = 0
# End of method 'twanderUI.SetDetailedView()'
#####
# Set a particular selection, w/bounds checking
# Note that 'selection' is passed as a string
# but 'active' is passed as a number.
#####
def SetSelection(self, selection, active):
# Clear all current selection(s)
self.DirList.selection_clear(0, END)
# Get current maximum index
maxindex = self.DirList.size() - 1
# And bounds check/adjust
if active > maxindex:
active = maxindex
# Set desired selected items, if any
if selection:
for entry in selection:
self.DirList.select_set(entry)
self.DirList.see(selection[-1])
# Now set the active entry
self.DirList.activate(active)
# End of method 'twanderUI.SetSelection()'
#####
# Update title bar with most current information
#####
def UpdateTitle(self, mainwin):
mainwin.title(PROGNAME + " " + VERSION + " " + FULLNAME + \
": "+ UI.CurrentDir + " Total Files: " + \
str(self.DirList.size()) + \
" Total Size: " + FileLength(self.TotalSize))
# End of method 'twanderUI.UpdateTitle()'
# End of class definition, 'twanderUI'
#----------------------------------------------------------#
# Handler Functions #
#----------------------------------------------------------#
#---------------- Mouse Click Dispatchers -----------------#
# We intercept all mouse clicks (of interest) here so it
# is easy to uniquely handle the Control, Shift, Alt,
# variations of button presses. We use Tkinter itself
# keep track of single- vs. double-clicks and hand-off
# the event to the corresponding Mouse Click Dispatcher.
#####
# Event Handler: Single Mouse Clicks
#####
def MouseClick(event):
event.state &= ~DontCareMask # Kill the bits we don't care about
if event.state == Button3Mask: # Button-3 / No Modifier
x, y = UI.DirList.winfo_pointerxy() # Position near mouse
PopupMenu(UI.CmdBtn.menu, x, y) # Display Command Menu
elif event.state == (Button3Mask | ShiftMask | ControlMask): # Shift-Control-Button-3
x, y = UI.DirList.winfo_pointerxy() # Position near mouse
PopupMenu(UI.HistBtn.menu, x, y) # Display Directory Menu
elif event.state == (Button3Mask | ShiftMask): # Shift-Button-3
x, y = UI.DirList.winfo_pointerxy() # Position near mouse
PopupMenu(UI.DirBtn.menu, x, y) # Display Directory Menu
# End Of 'MouseClick()
#####
# Event Handler: Mouse Double-Clicks
#####
def MouseDblClick(event):
event.state &= ~DontCareMask # Kill the bits we don't care about
if event.state == Button1Mask: # Double-Button-2 / No Modifier
DirListHandler(event) # Execute selected item
elif event.state == (Button1Mask | ControlMask): # Control-DblButton-1
KeyBackDir(event) # Move back one directory
elif event.state == (Button3Mask | ControlMask): # Control-DblButton-3
KeyUpDir(event) # Move up one directory
return "break"
# End Of 'MouseDblClick()
#--------------- General Program Commands -----------------#
#####
# Event Handler: Clear Various Program Histories
#####
def ClearHistory(event):
global UI
UI.AllDirs = []
UI.CmdHist = []
UI.LastCmd = ""
UI.LastDir = []
UI.LastPathEntered = ""
for x in [UI.HistBtn, UI.DirBtn]:
x.menu.delete(0,END)
x['menu'] = x.menu
x.config(state=DISABLED)
# End of 'ClearHistory()'
#####
# Event Handler: Individual Keystrokes
#####
def KeystrokeHandler(event):
event.state &= ~DontCareMask # Kill the bits we don't care about
# Check for, and handle accelerator keys
if event.state == AltMask:
# Set menu button associated with accelerator
# Command Menu
if event.char == 'c':
button = UI.CmdBtn
# Directory Menu
elif event.char == 'd':
button = UI.DirBtn
# History Menu
elif event.char == 'h':
button = UI.HistBtn
# Help Menu
elif event.char == 'l':
button = UI.HelpBtn
# Unrecognized - Ignore
else:
return
parts = button.winfo_geometry().split('+') # Geometry returned as "WidthxHeight+X+Y"
dims = parts[0].split('x')
x, y = int(parts[1]), int(parts[2])
w, h = int(dims[0]), int(dims[1])
x += UIroot.winfo_rootx() # This is relative to root window position
y += UIroot.winfo_rooty() # So adjust accordingly
# Display the requested menu
PopupMenu(button.menu, x+MENUOFFSET, y+h)
# Inhibit event from getting picked up by local accelerator key handlers
return "break"
#####
# Otherwise, process single character command invocations.
#####
# We *only* want to handle simple single-character
# keystrokes. This means that there must be a character
# present and that the only state modifier permitted
# is the Shift key
if not event.char or (event.state and event.state != 1):
return
# If the key pressed is a command key (i.e., it is in the table of
# defined commands), get its associated string and execute the command.
cmd = UI.CmdTable.get(event.char, ["", "", ""])[1]
name = UI.CmdTable.get(event.char, ["", "", ""])[0]
# cmd == null means no matching command key - do nothing
# Otherwise, replace config tokens with actual file/dir names
if cmd:
ExecuteCommand(cmd, name)
# end of 'KeystrokeHandler()'
#####
# Event Handler: Program Quit
#####
def KeyQuitProg(event):
sys.exit()
# End of 'KeyQuitProg()'
#####
# Event Handler: Toggle Detail View
#####
def KeyToggleDetail(event):
UI.SetDetailedView(not UI.DetailsOn)
RefreshDirList(event)
# End of 'KeyToggleDetail()'
#####
# Event Handler: Toggle win32all Features, If Available
#####
def KeyToggleWin32All(event):
global WIN32ALLON
if USEWIN32ALL:
WIN32ALLON = not WIN32ALLON
RefreshDirList(event)
# End of 'KeyToggleWin32All()'
#------------------- Directory Navigation -----------------#
#####
# Event Handler: Change Directory/Path
####
def KeyChangeDir(event):
newpath = askstring(pCHPATH, pENPATH, initialvalue=UI.LastPathEntered)
if newpath:
if MAXDIR > 0:
UI.LastPathEntered = newpath
LoadDirList(newpath)
KeySelTop(event)
UI.DirList.focus()
# End of 'KeyChangeDir()'
#####
# Event Handler: Goto $HOME
#####
def KeyHomeDir(event):
if HOME:
LoadDirList(HOME)
# End of 'KeyHomeDir()'
#####
# Event Handler: Move To Previous Directory
#####
def KeyBackDir(event):
# Move to last directory visited, if any - inhibit this from
# being placed on the directory traversal stack
if UI.LastDir:
LoadDirList(UI.LastDir.pop(), save=FALSE)
# No previous directory
else:
pass
# End of 'KeyBackDir()'
#####
# Event Handler: Go To Root Directory
#####
def KeyRootDir(event):
LoadDirList(PSEP)
# End of 'KeyRootDir()'
#####
# Event Handler: Go Back To Initial Directory
#####
def KeyStartDir(event):
LoadDirList(STARTDIR)
# End of 'KeyStartDir()'
#####
# Event Handler: Move Up One Directory
#####
def KeyUpDir(event):
# Move up one directory level unless we're already at the root
if UI.CurrentDir != os.path.abspath(PSEP):
LoadDirList(UI.CurrentDir + "..")
# Unless we're running on Win32 and we are able to do
# a Drive List View
elif OSNAME == 'nt' and GetWin32Drives():
LoadDirList(SHOWDRIVES)
# End of 'KeyUpDir()'
#####
# Event Handler: Display Drive List View On Win32, If Possible
#####
def KeyDriveList(event):
# This is only possible on Win32 and if there is a list of
# drives available - i.e, If Win32All is installed
if OSNAME == 'nt' and GetWin32Drives():
LoadDirList(SHOWDRIVES)
# End of 'KeyDriveList()
#---------------------- Selection Keys ---------------------#
#####
# Event Handler: Select All Items
#####
def KeySelAll(event):
# Unselect first item in case it was
UI.DirList.selection_clear(0)
# We never want to select the first item which is ".."
UI.DirList.selection_set(1, END)
# End of 'KeySelAll()'
#####
# Event Handler: Invert Current Selection
#####
def KeySelInv(event):
# List of current selections
cs= UI.DirList.curselection()
# Select everything
UI.DirList.selection_set(0, END)
# And unselect what was selected
for v in cs:
UI.DirList.selection_clear(v)
# And we never select ".." this way
UI.DirList.selection_clear(0)
# End of 'KeySelInv()'
#####
# Event Handler: Select Next Item
#####
def KeySelNext(event):
next = UI.DirList.index(ACTIVE)
# Don't increment if at end of list
if (next < UI.DirList.size() - 1):
next += 1
UI.SetSelection((str(next),), next)
# End of 'KeySelNext()'
#####
# Event Handler: Select No Items
#####
def KeySelNone(event):
UI.DirList.selection_clear(0, END)
# End of 'KeySelNone()'
#####
# Event Handler: Select Previous Item
#####
def KeySelPrev(event):
prev = UI.DirList.index(ACTIVE)
# Only decrement if > 0
if prev:
prev -= 1
UI.SetSelection((str(prev),), prev)
# End of 'KeySelPrev()'
#####
# Event Handler: Select Last Item
#####
def KeySelEnd(event):
# Get index of last item in listbox
sz = UI.DirList.size() - 1
# And setup to last item accordingly
UI.SetSelection((str(sz),), sz)
# End of 'KeySelEnd()'
#####
# Event Handler: Select First Item
#####
def KeySelTop(event):
UI.SetSelection(('0',),0)
# End of 'KeySelTop()'
#---------------------- Scrolling Keys ---------------------#
#####
# Event Handler: Move Down A Page
#####
def KeyPageDown(event):
UI.DirList.yview_scroll(1, "pages")
UI.DirList.activate("@0,0")
# End of 'KeyPageDown()'
#####
# Event Handler: Move Up A Page
#####
def KeyPageUp(event):
UI.DirList.yview_scroll(-1, "pages")
UI.DirList.activate("@0,0")
# End of 'KeyPageUp()'
#####
# Event Handler: Move Page Right
#####
def KeyPageRight(event):
UI.DirList.xview_scroll(1, "pages")
# End of 'KeyPageRight()'
#####
# Event Handler: Move Page Left
#####
def KeyPageLeft(event):
UI.DirList.xview_scroll(-1, "pages")
# End of 'KeyPageLeft()'
#---------------------- Execute Commands -------------------#
#####
# Event Handler: Run Manually Entered Command
####
def KeyRunCommand(event, initial=""):
global UI
# Prompt with passed initial edit string
if initial:
cmd = askstring(pRUNCMD, pENCMD, initialvalue=initial)
# Prompt with last manually entered command
elif UI.LastCmd:
cmd = askstring(pRUNCMD, pENCMD, initialvalue=UI.LastCmd )
# Prompt with no initial string
else:
cmd = askstring(pRUNCMD, pENCMD)
# Execute command (if any) - Blank entry means do nothing/return
if cmd:
ExecuteCommand(cmd, pMANUALCMD, ResolveVars=TRUE, SaveUnresolved=TRUE)
# Save the command only if Command History is enabled (MAXHIST > 0)
# AND one of two conditions exist:
#
# 1) No initial string was provided (The user entered a command manually).
# 2) An initial string was provided, but the user edited it.
if (MAXHIST > 0) and ((not initial) or (cmd != initial)):
UI.LastCmd = cmd
UI.DirList.focus()
# End of 'KeyRunCommand()'
#####
# Event Handler: Process Current Selection
#####
def DirListHandler(event):
global UI
# Get current selection. If none, just return, otherwise process
selected = UI.LastInSelection()
if not selected:
return
# If we're on Win32 and we just selected ".." from the root of
# a drive, request a display of the Drive List. LoadDirList()
# will check to see if there is anything in the Drive List and
# do nothing if it is empty (which happens if the user has not
# installed the Win32All package).
if OSNAME=='nt' and \
os.path.abspath(UI.CurrentDir) == os.path.abspath(UI.CurrentDir + selected):
LoadDirList(SHOWDRIVES, save=TRUE)
UI.MouseNewDir = TRUE
# If selection is a directory, move there and list contents.
elif os.path.isdir(os.path.join(UI.CurrentDir, selected)):
# On Unix, don't follow links pointing back to themselves
if OSNAME == 'posix' and os.path.samefile(UI.CurrentDir, UI.CurrentDir + selected):
# Protect with try/except because Tk loses track of things
# if you keep hitting this selection very rapidly - i.e. Select
# the entry and lean on the Enter key. The try/except
# prevents the error message (which is benign) from ever
# appearing on stdout.
try:
WrnMsg(wLINKBACK % (UI.CurrentDir + selected[:-1]))
except:
pass
return
# Build full path name
selected = os.path.join(os.path.abspath(UI.CurrentDir), selected)
# Convert ending ".." into canonical path
if selected.endswith(".."):
selected = PSEP.join(selected.split(PSEP)[:-2])
# Need to end the directory string with a path
# separator character so that subsequent navigation
# will work when we hit the root directory of the file
# system. In the case of Unix, this means that
# if we ended up at the root directory, we'll just
# get "/". In the case of Win32, we will get
# "DRIVE:/".
if selected[-1] != PSEP:
selected += PSEP
# Load UI with new directory
LoadDirList(selected, save=TRUE)
# Indicate that we entered a new directory this way.
# This is a workaround for Tk madness. When this
# routine is invoked via the mouse, Tk sets the
# activation *when this routine returns*. That means
# that the activation set at the end of LoadDirList
# gets overidden. We set this flag here so that
# we can subsequently do the right thing in our
# background polling loop. Although this routine
# can also be invoked via a keyboard selection,
# we run things this way regardless since no harm
# will be done in the latter case.
UI.MouseNewDir = TRUE
# No, a *file* was selected with a double-click
# We know what to do on Win32 and Unix. We ignore
# the selection elsewhere.
elif OSNAME == 'nt':
ExecuteCommand(os.path.join(os.path.abspath(UI.CurrentDir), selected), '', UseStartDir=TRUE)
elif OSNAME == 'posix':
ExecuteCommand(os.path.join(os.path.abspath(UI.CurrentDir), selected), '')
# End of 'DirListHandler()'
#####
# Event Handler: Handler Function Keys
#####
def FuncKeypress(index):
dir = UI.FuncKeys[index]
if dir:
LoadDirList(dir)
# Inhibit further processing of key - some Function Keys
# have default behavior in Tk which we want to suppress.
return "break"
# End of 'FuncKeypress()'
#-------------- Handler Utility Functions -----------------#
#####
# Event Handler: Popup Menus
#####
def PopupMenu(menu, x, y):
# Popup requested menu at specified coordinates
# but only if the menu has at least one entry.
if menu.index(END):
menu.tk_popup(x, y)
# End of 'PopupMenu()'
#####
# Execute A Command
#####
def ExecuteCommand(cmd, name, UseStartDir=FALSE, ResolveVars=FALSE, SaveUnresolved=FALSE):
global UI
# Process references to any Built-In variables
newcmd = ProcessBuiltIns(cmd, name)
# Replace references to any Environment or User-Defined variables
# but only when asked to. - i.e., The command was manually
# entered by the user and may contain unresolved variables.
# (Commands the user defined in the configuration file
# already have their variables dereferenced when that file is
# read and parsed.)
if ResolveVars:
newcmd = ProcessVariables(newcmd, 0 , name)
# A null return value means there was a problem - abort
if not newcmd:
return
# Just dump command if we're debugging
if int(DEBUGLEVEL) & DEBUGCMDS:
PrintDebug(dCMD, [newcmd,])
# Otherwise,actually execute the command.
elif newcmd:
# Run the command on Win32 using filename associations
if UseStartDir:
try:
os.startfile(newcmd)
except:
WrnMsg(wBADEXE % newcmd)
# Normal command execution for both Unix and Win32
else:
try:
if (OSNAME == 'posix') and not USETHREADS:
os.system(newcmd + " &")
else:
thread.start_new_thread(os.system, (newcmd,))
except:
WrnMsg(wBADEXE % newcmd)
# Update the Command History observing MAXHIST
# In most cases, we want to save the command with all the
# variables (Built-In, Environment, User-Defined) resolved (dereferenced).
# However, sometimes (e.g. manual command entry via KeyRunCommand()) we
# want to save the *unresolved* version.
if SaveUnresolved:
savecmd = cmd
else:
savecmd = newcmd
UpdateMenu(UI.HistBtn, UI.CmdHist, MAXHIST, MAXHISTBUF, KeyRunCommand, newentry=savecmd, fakeevent=TRUE)
# Dump Command History stack if requested
if int(DEBUGLEVEL) & DEBUGHIST:
PrintDebug(dHIST, UI.CmdHist)
# End of 'ExecuteCommand()
#####
# Load UI With Selected Directory
#####
def LoadDirList(newdir, save=TRUE):
# Make sure we're permitted to navigate - we have to allow initial entry into STARTDIR
if NONAVIGATE and (newdir != STARTDIR):
return
# Transform double forward-slashes into a single
# forward-slash. This keeps the Directory Stack
# and Visited lists sane under Unix and prevents
# Win32 from attempting to enter a Drive List View
# when the user enters this string but Win32All has
# not been loaded.
if newdir == '//':
newdir = '/'
# Get path into canonical form unless we're trying
# to display a Win32 Drive List
if newdir != SHOWDRIVES:
newdir = os.path.abspath(newdir)
# Make sure newdir properly terminated
if newdir[-1] != PSEP:
newdir += PSEP
# User has requested a Drive List View. Make sure we're
# running on Win32 and see the feature is available. If
# not available (which means Win32All is not installed),
# just ignore and return, doing nothing.
elif OSNAME != 'nt' or not GetWin32Drives():
return
# Check right now to see if we can read
# the directory. If not, at least we
# haven't screwed up the widget's current
# contents or program state.
contents = BuildDirList(newdir)
try:
contents = BuildDirList(newdir)
except:
# If CurrentDir set, we're still there: error w/ recovery
if UI.CurrentDir:
ErrMsg(eDIRRD % newdir)
return
# If not, we failed on the initial directory: error & abort
else:
ErrMsg(eINITDIRBAD % newdir)
sys.exit(1)
# Push last directory visited onto the visited stack
# We do NOT save this to the stack if:
#
# 1) We've been told not to. - Passed when we're called (save=FALSE).
# 2) If we're trying to move into the current directory again.
# This can happen either when the user does a manual directory
# change or if they press ".." while in root. We don't
# actually want to save the directory until we *leave* it,
# otherwise we'll end up with a stack top and current
# directory which are the same, and we'll have to go
# back *twice* to move to the previous directory.
# Are we trying to move back into same directory?
if os.path.abspath(UI.CurrentDir) == os.path.abspath(newdir):
save = FALSE
# Now save if we're supposed to.
if save and UI.CurrentDir:
UI.LastDir.append(UI.CurrentDir)
# Dump directory stack if debug requested it
if int(DEBUGLEVEL) & DEBUGDIRS:
PrintDebug(dDIRSTK, UI.LastDir)
# And select new directory to visit
UI.CurrentDir = newdir
# Wait until we have exclusive access to the widget
while not UI.DirListMutex.testandset():
pass
# Clear out the old contents
UI.DirList.delete(0,END)
# Load new directory contents into UI
for x in contents:
UI.DirList.insert(END, x)
# Also move the program context to the new directory
# for everything except a Drive List View. In that case
# the program context remains in the directory from
# which the Drive List View was selected
if newdir != SHOWDRIVES:
os.chdir(newdir)
# Keep list of all unique directories visited in the Directory Menu
UpdateDirMenu(newdir)
# And always force selection of first item there.
# This guarantees a selection in the new
# directory context, so subsequent commands
# won't try to operate on an item selected in a
# previous directory
KeySelTop(None)
# Update titlebar to reflect any changes
UI.UpdateTitle(UIroot)
#Release the lock
UI.DirListMutex.unlock()
# End of 'LoadDirList():
#####
# Return Ordered List Of Directories & Files For Current Root
#####
def BuildDirList(currentdir):
global UI
dList, fList = [], []
# Two possible cases have to be handled:
# A normal directory read and a Drive List View
# under Win32.
# Normal directory reads
if currentdir != SHOWDRIVES:
# Walk the directory separate subdirs and files
for file in os.listdir(currentdir):
if os.path.isdir(os.path.join(currentdir, file)):
dList.append(file + PSEP)
else:
fList.append(file)
# On Win32, do case-insensitive sorting since case
# is irrelevant in file names on these systems
if OSNAME == 'nt':
for l in (dList, fList):
lowerlist = [(x.lower(), x) for x in l]
lowerlist.sort()
l = []
[l.append(x[1]) for x in lowerlist]
# Everywhere else, do absolute sorts
else:
dList.sort()
fList.sort()
# Entry to move up one directory is always first,
# no matter what the sort. This is necessary because
# OSs like Win32 like to use '$' in file names which
# sorts before "."
dList.insert(0, ".." + PSEP)
# The user requested Drive List View. This is always displayed
# without details, so we can return directly from here.
else:
UI.TotalSize = 0
return GetWin32Drives()
# Get details on directory contents
all = dList + fList
detlist = []
UI.TotalSize = 0
for index in range(len(all)):
# Make room for the new detailed entry
detlist.append("")
# Condition the name
fn = os.path.join(currentdir, all[index])
if fn[-1] == PSEP:
fn =fn[:-1]
# Get file details from OS
try:
stinfo = os.lstat(fn)
# 'lstat' failed - provide entry with some indication of this
except:
pad = (UI.NameFirst - len(iNOSTAT) - 1) * " "
detlist[index] = pad + iNOSTAT + " " + all[index]
# Done with this file, but keep going
continue
# Do Win32-specific mode if win32all is loaded
if WIN32ALL and USEWIN32ALL and WIN32ALLON:
modlen = len(win32all_mode)
try:
win32stat = GetFileAttributes(fn)
mode = ""
except:
mode = "Unavailable"
if not mode:
# Test each attribute and set symbol in respective
# position, if attribute is true.
for i in range(modlen):
mask, sym = win32all_mode[i]
if win32stat & mask:
mode += sym
else:
mode += '-'
# We're either on Unix or Win32 w/o win32all available
else:
# Mode - 1st get into octal string
mode = stinfo[ST_MODE]
modestr = str("%06o" % mode)
# Set the permission bits
mode = ""
for x in [-3, -2, -1]:
mode += ST_PERMIT[int(modestr[x])]
# Deal with the special permissions
sp = int(modestr[-4])
# Sticky Bit
if 1 & sp:
if mode[-1] == "x":
mode = mode[:-1] + "t"
else:
mode = mode[:-1] + "T"
# Setgid Bit
if 2 & sp:
if mode[-4] == "x":
mode = mode[:-4] + "g" + mode[-3:]
else:
mode = mode[:-4] + "G" + mode[-3:]
# Setuid Bit
if 4 & sp:
if mode[-7] == "x":
mode = mode[:-7] + "g" + mode[-6:]
else:
mode = mode[:-7] + "G" + mode[-6:]
# Pickup the special file types
mode = ST_SPECIALS.get(modestr[0:2], "?") + mode
# Pad the result for column alignment
detlist[index] += mode + (ST_SZMODE - len(mode)) * " "
# Number of links to entry
detlist[index] += str(stinfo[ST_NLINK]) + \
( ST_SZNLINK - len(str(stinfo[ST_NLINK]))) * " "
# Get first ST_SZxNAME chars of owner and group names on unix
if OSNAME == 'posix':
# Convert UID to name, if possible
try:
owner = pwd.getpwuid(stinfo[ST_UID])[0][:ST_SZUNAME-1]
# No valid name associated with UID, so use number instead
except:
owner = str(stinfo[ST_UID])
# Convert GID to name, if possible
try:
group = grp.getgrgid(stinfo[ST_GID])[0][:ST_SZGNAME-1]
# No valid name associated with GID, so use number instead
except:
group = str(stinfo[ST_GID])
# Handle Win32 systems
elif OSNAME == 'nt':
# Defaults
owner = 'win32user'
group = 'win32group'
if WIN32ALL and USEWIN32ALL and WIN32ALLON:
try:
ho = GetFileSecurity(fn, OWNER_SECURITY_INFORMATION)
hg = GetFileSecurity(fn, GROUP_SECURITY_INFORMATION)
sido = ho.GetSecurityDescriptorOwner()
sidg = hg.GetSecurityDescriptorGroup()
owner = LookupAccountSid(WIN32HOST, sido)[0]
group = LookupAccountSid(WIN32HOST, sidg)[0]
owner = owner[:ST_SZUNAME-1]
group = group[:ST_SZGNAME-1]
except:
owner = 'Unavailable'
group = 'Unavailable'
# Default names for all other OSs
else:
owner = OSNAME + 'user'
group = OSNAME + 'group'
# Add them to the detail
detlist[index] += owner + (ST_SZUNAME - len(owner)) * " "
detlist[index] += group + (ST_SZUNAME - len(group)) * " "
# Length
flen = FileLength(stinfo[ST_SIZE])
UI.TotalSize += stinfo[ST_SIZE]
detlist[index] += flen + (ST_SZLEN - len(flen)) * " "
# mtime
# Get the whole time value
ftime = time.ctime(stinfo[ST_MTIME]).split()[1:]
# Pad single-digit dates with leading space
if len(ftime[1]) == 1:
ftime[1] = " " + ftime[1]
# Drop the seconds
ftime[-2] = ":".join(ftime[-2].split(":")[:-1])
# Turn into a single string
ftime = " ".join(ftime)
detlist[index] += ftime + (ST_SZMTIME - len(ftime)) * " "
# File name
detlist[index] += all[index]
# Include symlink details as necessary
if detlist[index][0] == 'l':
# If the symlink points to a file
# in the same directory, just show
# the filename and not the whole path
f = os.path.realpath(currentdir + all[index])
r = os.path.split(f)
if r[0] == currentdir[:-1]:
f = r[1]
detlist[index] += SYMPTR + f
if UI.DetailsOn:
return detlist
else:
return dList + fList
# End of 'BuildDirList()'
#####
# Process A Command Line Containing Unresolved Variables
#####
def ProcessBuiltIns(cmd, name):
# First do any prompting required
for promptvar, handler, replace in ((YESNO, askyesno, FALSE), (PROMPT, askstring, TRUE)):
for x in range(cmd.count(promptvar)):
b = cmd.find(promptvar)
e = cmd.find("]", b)
prompt = cmd[b + len(promptvar):e]
val = handler(name, prompt)
# Make sure our program gets focus back
UI.DirList.focus()
if val:
if replace:
cmd = cmd.replace(cmd[b:e+1], QUOTECHAR + val + QUOTECHAR)
else:
cmd = cmd.replace(cmd[b:e+1], '')
# Null input means the command is being aborted
else:
return
# Now do files & directories
# Strip trailing path separators in each case to
# give the command author the maximum flexibility possible
selection = StripPSEP(UI.LastInSelection())
selections = ""
dselections = ""
for selected in UI.AllSelection():
selected = StripPSEP(selected)
dselections += QUOTECHAR + UI.CurrentDir + selected + QUOTECHAR + " "
selections += QUOTECHAR + selected + QUOTECHAR + " "
cmd = cmd.replace(DIR, QUOTECHAR + StripPSEP(UI.CurrentDir) + QUOTECHAR)
cmd = cmd.replace(DSELECTION, QUOTECHAR + UI.CurrentDir + selection + QUOTECHAR)
cmd = cmd.replace(DSELECTIONS, dselections)
cmd = cmd.replace(HASH, COMMENT)
cmd = cmd.replace(SELECTION, QUOTECHAR + selection + QUOTECHAR)
cmd = cmd.replace(SELECTIONS, selections)
return cmd
# End of 'ProcessBuiltIns()'
#####
# Process/Replace References To User-Defined & Environment Variables
#####
def ProcessVariables(cmd, num, line):
doeval = TRUE
depth = 0
while doeval:
# Bound the number of times we can nest a definition
# to prevent self-references which give infinite nesting depth
depth += 1
if (depth > MAXNESTING):
doeval = FALSE
# See if there are still unresolved variable references.
# If so, let the user know
if REVAR.findall(cmd):
WrnMsg(wVBLTOODEEP % (num, cmd))
return ""
# Get a list of variable references
vbls = REVAR.findall(cmd)
# Throw away references to Built-In Variables - these are
# processed at runtime and should be left alone here.
# Note that we iterate over a *copy* of the variables
# list, because we may be changing that list contents
# as we go. i.e., It is bogus to iterate over a list
# which we are changing during the iteration.
for x in vbls[:]:
# Ignore references to Built-In Variables here - They are
# processed at runtime.
if UI.BuiltIns.has_key(x):
vbls.remove(x)
elif x.startswith(PROMPT):
vbls.remove(x)
elif x.startswith(YESNO):
vbls.remove(x)
if vbls:
for x in vbls:
vbl = x[1:-1]
# Process ordinary variables
if UI.SymTable.has_key(vbl):
cmd = cmd.replace(x, UI.SymTable[vbl])
# Process environment variables.
# If an environment variable is referenced,
# but not defined, this is a fatal error
elif vbl[0] == ENVVBL:
envvbl = os.getenv(vbl[1:])
if envvbl:
cmd = cmd.replace(x, envvbl)
else:
WrnMsg(wBADENVVBL % (num, x, line))
return ""
# Process references to undefined variables
else:
WrnMsg(wUNDEFVBL % (num, x, line))
return ""
# No substitutions left to do
else:
doeval = FALSE
return cmd
# End of 'ProcessVariables()'
#####
# Refresh Contents Of Directory Listing To Stay In Sync With Reality
#####
def RefreshDirList(*args):
# Wait until we have exclusive access to the widget
while not UI.DirListMutex.testandset():
pass
# Get current selection and active
sellist = UI.DirList.curselection()
active = UI.DirList.index(ACTIVE)
# Save current scroll positions
xs = UI.hSB.get()
ys = UI.vSB.get()
# Clean out old listbox contents
UI.DirList.delete(0,END)
# Save the new directory information
UI.DirList.insert(0, *BuildDirList(UI.CurrentDir))
# Restore selection(s)
UI.SetSelection(sellist, active)
# Restore scroll positions
UI.DirList.xview(MOVETO, xs[0])
UI.DirList.yview(MOVETO, ys[0])
# Update titlebar to reflect any changes
UI.UpdateTitle(UIroot)
# Release the mutex
UI.DirListMutex.unlock()
# End of 'RefreshDirList()
#---------------- Menu Support Functions ------------------#
#####
# Handle Command Menu Selections
#####
def CommandMenuSelection(cmdkey):
class event:
pass
event.state = 0
event.char = cmdkey
KeystrokeHandler(event)
# End Of 'CommandMenuSelection()'
#####
# Process Options
#####
def ProcessOptions():
global UI
# Start in detailed mode unless details are inhibited
UI.SetDetailedView(~NODETAILS)
# Rebind all the handlers
UI.BindAllHandlers()
# Set the Command Menu Contents, if any,
# and enable the menu if it has entries.
# If no commands are defined, warn the user.
if UI.CmdBtn.menu.index(END):
UI.CmdBtn['menu'] = UI.CmdBtn.menu
UI.CmdBtn.configure(state=NORMAL)
else:
WrnMsg(wNOCMDS)
# Any user-set options have now been read, set the GUI
for i in (UI.CmdBtn, UI.DirBtn, UI.HistBtn, UI.HelpBtn):
i.config(foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
i.menu.config(foreground=MFCOLOR, background=MBCOLOR, font=(MFNAME, MFSZ, MFWT))
# Set Menu Bar background to match buttons
UI.mBar.config(background=MBARCOL)
UI.DirList.config(font=(FNAME, FSZ, FWT),
foreground=FCOLOR, background=BCOLOR,
height=HEIGHT, width=WIDTH)
# Make sure menus conform to max lengths (which may have changed).
UpdateMenu(UI.DirBtn, UI.AllDirs, MAXDIR, MAXDIRBUF, LoadDirList, sort=TRUE)
UpdateMenu(UI.HistBtn, UI.CmdHist, MAXHIST, MAXHISTBUF, KeyRunCommand, fakeevent=TRUE)
#####
# Initialize Help Menu with latest information
#####
# Clear out existing content
UI.HelpBtn.config(state=DISABLED)
UI.HelpBtn.menu.delete(0,END)
# Update the cascading submenus
# We iterate across tuples of (Menu Name, Menu Variable, List Of Items)
for mname, mvbl, mlist in ((hUSERVBLS, UI.UserVbls, GetUserVbls()),
(hCOMMANDS, UI.CmdDefs, GetCommandTable()),
(hINTVBLS, UI.IntVbls, GetIntVars()),
(hOPTVBLS, UI.OptVbls, GetOptions()),
(hKEYS, UI.Keys, GetKeyBindings()),
(hDIRSC, UI.DirSCs, GetDirShortcuts())):
mvbl.delete(0,END)
# Indicated if there is nothing to display for this class of help
if not mlist:
mvbl.add_command(label=hNONE % mname, command=None, foreground=HFCOLOR, background=HBCOLOR,
font=(HFNAME, HFSZ, HFWT))
# Load the help class with relevant information
else:
for l in mlist:
mvbl.add_command(label=l, command=None, foreground=HFCOLOR, background=HBCOLOR, font=(HFNAME, HFSZ, HFWT))
UI.HelpBtn.menu.add_cascade(label=mname, menu=mvbl)
# Setup the About item
UI.HelpBtn.menu.add_command(label=hABOUT, command=lambda title=hABOUT,
text="%s %s\n\nCopyright %s %s\n%s\n\n%s" % \
(PROGNAME, VERSION, CPRT, DATE, OWNER, RIGHTS) \
: showinfo(title, text))
# Enable the menu content
UI.HelpBtn['menu'] = UI.HelpBtn.menu
UI.HelpBtn.config(state=NORMAL)
#####
# Reflect Our Changes In The Interface
#####
RefreshDirList()
#####
# Dump requested debug information
#####
# Keyboard Assignments
if int(DEBUGLEVEL) & DEBUGKEYS:
# Keyboard Bindings
PrintDebug(dKEYBINDS, GetKeyBindings())
# Function Keys (Directory Shortcuts)
PrintDebug(dFUNCKEYS, GetDirShortcuts())
# User-Defined Variables
if int(DEBUGLEVEL) & DEBUGSYMS:
PrintDebug(dSYMTBL, GetUserVbls())
# Command Definitions
if int(DEBUGLEVEL) & DEBUGCTBL:
PrintDebug(dCMDTBL, GetCommandTable())
# Internal Program Variables AndOptions
if int(DEBUGLEVEL) & DEBUGVARS:
# Internal variabled
PrintDebug(dINTVAR, GetIntVars())
# User-Settable options
PrintDebug(dOPTVAR, GetOptions())
# If we just wanted debug output, quit now
if int(DEBUGLEVEL) & DEBUGQUIT:
sys.exit()
# End of 'ProcessOptions()'
#####
# Add An Entry To The List Of All Directories Visited
# Do this only if it is not already on the list and
# observe the MAXDIR variable to keep list length bounded.
#####
def UpdateDirMenu(newdir):
global UI
# Win32 collapses case so that 'x' and 'X' refer to the same
# directory. We want to preserve this in the user's display
# but we have to collapse case for the purposes of doing our
# checks below otherwise the same directory with different
# capitalization (if the user manually enteres it that way)
# can appear twice in the Directory Menu
addentry = FALSE
if OSNAME == 'nt':
# First make a case-collapsed copy of the existing list
dlc = []
[dlc.append(d.lower()) for d in UI.AllDirs]
# Now see if our new entry is already there
if newdir.lower() not in dlc:
addentry = TRUE
elif newdir not in UI.AllDirs:
addentry = TRUE
# Now add the entry if we decided it was necessary. observing MAXDIR value.
if addentry:
UpdateMenu(UI.DirBtn, UI.AllDirs, MAXDIR, MAXDIRBUF, LoadDirList, sort=TRUE, newentry=newdir)
# End of 'UpdateDirMenu()'
#####
# Generic Menu Update Routine
#####
def UpdateMenu(menubtn, datastore, max, maxbuf, func, sort=FALSE, newentry="", fakeevent=FALSE):
# First add the new data, if any, to the specified data storage stucture.
if newentry:
datastore.append(newentry)
# Now trim it to requested maximum length. 'max' sets how
# many entries we see in the menu, and 'maxbuf' sets how large
# the actual storage buffer is allowed to get.
datastore[:] = datastore[-maxbuf:]
# We do not sort the data storage itself if sorting has been requested.
# We sort the *copy*. That way we get the 'last _max_ items in
# sorted order.' (If we sorted the master copy, we would lose
# track of the order in which things were placed there.)
data = datastore[:]
if not max:
data = []
elif len(data) > max:
data = datastore[-max:]
# Initialize the menu to empty
menubtn.menu.delete(0,END)
menubtn.config(state=DISABLED)
if len(data):
if sort:
data.sort()
for entry in data:
if fakeevent:
menubtn.menu.add_command(label=entry, command=lambda item=entry: func(None, item))
else:
menubtn.menu.add_command(label=entry, command=lambda item=entry: func(item))
menubtn['menu'] = menubtn.menu
# Menu now has content, enable it
menubtn.config(state=NORMAL)
# End of 'UpdateMenu()'
#---------------- Debug Support Functions -----------------#
#####
# Return List Of Command Table Entries
#####
def GetCommandTable():
debuginfo = []
for key in UI.CmdTable.keys():
name = UI.CmdTable[key][0]
cmd = UI.CmdTable[key][1]
debuginfo.append(key + " " + name + " " * (16-len(name)) + cmd)
return debuginfo
# End of 'GetCommandTable()'
#####
# Return List Of Current Directory Shortcuts
#####
def GetDirShortcuts():
debuginfo = []
for x in range(len(UI.FuncKeys)):
key = "F" + str(x+1)
path = UI.FuncKeys[x]
if path:
debuginfo.append(key + " " * (10-len(key)) + path)
return debuginfo
# End of 'GetDirShortcuts()'
#####
# Return List Of Internal Variables
#####
def GetIntVars():
debuginfo = []
for v in DebugVars:
debuginfo.append(v + " " * (12-len(v)) + (str(eval(v)) or dNULL))
debuginfo.sort()
return debuginfo
# End of 'GetIntVars()'
#####
# Return List Of Current Key Bindings
#####
def GetKeyBindings():
debuginfo = []
for key in UI.KeyBindings.keys():
debuginfo.append(key + " " * (10-len(key)) + UI.KeyBindings[key])
debuginfo.sort()
return debuginfo
# End of 'GetKeyBindings()'
#####
# Return List Of User-Settable Options
#####
def GetOptions():
debuginfo = []
for l in (UI.OptionsBoolean, UI.OptionsNumeric, UI.OptionsString):
for v in l:
debuginfo.append(v + " " * (12-len(v)) + (str(eval(v)) or dNULL))
debuginfo.sort()
return debuginfo
# End of 'GetOptions()'
#####
# Return List Of User-Defined Variables
#####
def GetUserVbls():
debuginfo = []
for sym in UI.SymTable.keys():
debuginfo.append(sym + " " * (16-len(sym)) + UI.SymTable[sym])
debuginfo.sort()
return debuginfo
# End of 'GetUserVbls()'
#----------------------------------------------------------#
# Program Entry Point #
#----------------------------------------------------------#
#####
# Create an instance of the UI
#####
UIroot = Tk()
UI = twanderUI(UIroot)
# Make the Tk window the topmost in the Z stack.
# 'Gotta do this or Win32 will not return input
# focus to our program after a startup warning
# display.
UIroot.tkraise()
#####
# Setup global UI variables
#####
# Setup Built-In Variables
UI.BuiltIns = {DIR:"", DSELECTION:"", DSELECTIONS:"", HASH:"",
PROMPT:"", SELECTION:"", SELECTIONS:"", YESNO:""}
# Options (and their default values) which can be set in the configuration file
UI.OptionsBoolean = {"AUTOREFRESH":AUTOREFRESH, "NODETAILS":NODETAILS, "NONAVIGATE":NONAVIGATE,
"USETHREADS":USETHREADS, "USEWIN32ALL":USEWIN32ALL, "WARN":WARN}
UI.OptionsNumeric = {"DEBUGLEVEL":DEBUGLEVEL, "FSZ":FSZ, "HEIGHT":HEIGHT, "MAXDIR":MAXDIR,
"MAXDIRBUF":MAXDIRBUF, "MAXHIST":MAXHIST, "MAXHISTBUF":MAXHISTBUF,
"MAXNESTING":MAXNESTING, "REFRESHINT":REFRESHINT, "WIDTH":WIDTH}
UI.OptionsString = {"BCOLOR":BCOLOR, "FCOLOR":FCOLOR, "FNAME":FNAME, "FSZ":HFSZ, "FWT":FWT, # Main Font/Colors
"MBCOLOR":MBCOLOR, "MFCOLOR":MFCOLOR, "MFNAME":MFNAME, "MFSZ":MFSZ, "MFWT":MFWT, # Menu Font/Colors
"HBCOLOR":HBCOLOR, "HFCOLOR":HFCOLOR, "HFNAME":HFNAME, "HFSZ":HFSZ, "HFWT":HFWT, # Help Font/Colors
"MBARCOL":MBARCOL, "QUOTECHAR":QUOTECHAR, "STARTDIR":STARTDIR} # Other
# Prepare storage for key bindings
UI.KeyBindings = {}
# Initialize list of all directories visited
UI.AllDirs = []
# Initialize directory stack
UI.LastDir = []
# Initialize storage for last manually entered directory path
UI.LastPathEntered = ""
# And current location
UI.CurrentDir = ""
# Initialize Command History data structures
ClearHistory(None)
# Need mutex to serialize on widget updates
UI.DirListMutex = mutex.mutex()
# Intialize the "new dir via mouse" flag
UI.MouseNewDir = FALSE
# Initialize the polling counter
UI.ElapsedTime = 0
# Start in detailed mode
UI.SetDetailedView(TRUE)
#####
# Command line processing - Options are set with the
# following priority scheme (lowest to highest):
#
# 1) Defaults coded into the program
# 2) Options set in the configuration file
# 3) Options set in the environment variable
# 4) Options set on the command line
#
#####
# Concatenate any environment variable with the
# command line so the command line takes precedence.
OPTIONS = sys.argv[1:]
envopt = os.getenv(PROGNAME.upper())
if envopt:
OPTIONS = envopt.split() + OPTIONS
try:
opts, args = getopt.getopt(OPTIONS, '-c:d:hqrtvx:y:')
except getopt.GetoptError:
Usage()
sys.exit(1)
# If the user wants help or version information, do this first
# so we don't bother with other options processing
for opt, val in opts:
if opt == "-h":
Usage()
sys.exit(0)
if opt == "-v":
print RCSID
sys.exit(0)
# Read configuration file before any other arguments. This allows the
# environment variable and then the command line to override any
# settings in the configuration file.
for opt, val in opts:
if opt == "-c":
CONF = os.path.abspath(val)
# Parse the configuration file, but suppress options
# processing - on startup this is done just before
# we enter the main message loop to make sure we
# pickup any options changes from the environment
# variable or command line.
ParseConfFile(None, DoOptionsProcessing=FALSE)
# Process the rest of the options, if any
for opt, val in opts:
if opt == "-d":
DEBUGLEVEL = val
if int(DEBUGLEVEL):
print dHEADER % time.asctime()
if opt == "-q":
WARN = FALSE
if opt == "-r":
AUTOREFRESH = FALSE
if opt == "-t":
QUOTECHAR = ""
if opt == "-x":
WIDTH = val
if opt == "-y":
HEIGHT = val
# Figure out where to start - Environment/Command Line overrides config
# file STARTDIR option. Program can only have 0 or 1 arguments. Make
# sure any startdir argument is legit
if len(args) > 1:
ErrMsg(eTOOMANY)
sys.exit(1)
if len(args) == 1:
STARTDIR = args[0]
# Windows is sloppy about accepting both '//' and '\\'
# so we have to condition the command line input for consistency.
if OSNAME == 'nt' and STARTDIR == '//':
STARTDIR = SHOWDRIVES
# Make sure any user request to start in a Drive List View
# is possible. If not, just start in the root directory.
if STARTDIR == SHOWDRIVES and (OSNAME != 'nt' or not GetWin32Drives()):
STARTDIR = PSEP
if not os.path.isdir(STARTDIR):
ErrMsg(eBADROOT % STARTDIR)
sys.exit(1)
# Save this value as the default for STARTDIR
UI.OptionsString["STARTDIR"] = STARTDIR
# Get starting directory into canonical form
STARTDIR = os.path.abspath(STARTDIR)
# Initialize the UI directory listing
LoadDirList(STARTDIR)
KeySelTop(None)
# Process options to catch any changes detected in
# environment variable or command line
ProcessOptions()
# And start the periodic polling of the widget
UI.poll()
# Run the program interface
UIroot.mainloop()
tundra