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229 lines
8.4 KiB
229 lines
8.4 KiB
#-*- coding: utf-8 -*-
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# Copyright 2008-2010 Mir Calculate Ltd. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import re
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import subprocess
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import time
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class NoneProgressBar:
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"""Abstract class of progress bar. It do nothing."""
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def __init__(self,title,dialog=None):
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pass
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def openDialog(self,title,max=None):
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"""Create dialog with progress bar, prepare date"""
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pass
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def shutdownDialog(self):
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"""Destroy dialog"""
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pass
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def setValue(self,value):
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"""Set value of progress bar relative of maximum"""
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pass
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def setMaximum(self,max):
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"""Set maximum value of progress bar"""
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pass
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def setTitle(self,title):
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"""Set title of progress dialog"""
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pass
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class GProgressBar(NoneProgressBar):
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"""GProgressBar uses Xdialog program for display progressbar."""
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def __init__(self,title,xdialog=None):
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self.title = title
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self.bgPID = 0
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self.value = 0
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self.pipein = None
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if xdialog == None:
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self.openDialog(self.title)
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def openDialog(self,title,max=None):
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if max != None:
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self.setMaximum(max)
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title = re.sub("<[^>]+>", "", title)
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self.title = title
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if os.system('which Xdialog &>/dev/null') == 0:
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pipe = subprocess.Popen('/usr/bin/Xdialog --progress "%s" 6 80'\
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%(self.title),
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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close_fds=True,
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env=os.environ, shell=True)
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self.pipein = pipe.stdin
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self._set(1)
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pipe.stdout.close()
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pipe.stderr.close()
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def shutdownDialog(self):
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'''Принудительно уничтожить процесс dialog'''
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if self.pipein:
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self._set(100)
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time.sleep(0.1)
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self.pipein.close()
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self.pipein = None
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def _set(self,value):
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if self.pipein:
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self.pipein.write("%02d\n"%value)
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self.pipein.flush()
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def setValue(self,value):
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'''Установить текущее значения для прогресса'''
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if self.pipein and value <= self.max:
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progress_value = int(value / self.kmax)
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if progress_value > int(self.value / self.kmax) and progress_value < 100:
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self._set(progress_value)
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self.value = value
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def setMaximum(self,max):
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'''Установить максимальное значения для прогресса'''
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self.max = max
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self.kmax = max / 100.0
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def setTitle(self,title):
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'''Установить описания прогресса'''
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pass
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class KProgressBar(NoneProgressBar):
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"""KProgressBar uses kdialog program and dbus for display progressbar."""
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suffixSet = 'org.freedesktop.DBus.Properties.Set \
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org.kde.kdialog.ProgressDialog'
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execenv = {"HOME":"/root"}
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max = 100
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kdialog = None
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label = None
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def __init__(self,title,kdialog=None):
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self.title = title
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self.value = 0
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if kdialog is None:
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self.openDialog(self.title)
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def openDialog(self,title,max=None):
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if max != None:
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self.max = max
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self.title = title
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if os.system('which kdialog >/dev/null') == 0:
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self.label ="LOGINKDIALOG=%d" % os.getpid()
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env = {}
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env.update(os.environ.items() + self.execenv.items() +\
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[tuple(self.label.split("="))])
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pipe = subprocess.Popen('/usr/bin/kdialog --progressbar "%s" %d'\
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%(" "*(len(title)+20), self.max),
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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close_fds=True,
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env=env, shell=True)
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pipe.stdin.close()
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# wait for terminate kdialog, which say dbus dialog id
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if pipe.poll() is None:
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# ожидание в 5 сек
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for t in range(500):
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time.sleep(0.01)
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if pipe.poll() != None:
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break
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# waiting is ok
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if pipe.poll() == 0:
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self.kdialog = pipe.stdout.readline().strip()
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while not "org.kde.kdialog" in self.kdialog:
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s = pipe.stdout.readline()
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# if bad result of kdialog then shutdown dialog
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if s == "":
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pipe.stdout.close()
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pipe.stderr.close()
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self.shutdownDialog()
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break
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self.kdialog = s.strip()
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self.setTitle(self.title)
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pipe.stdout.close()
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pipe.stderr.close()
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# waiting is failed
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else:
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pipe.stdout.close()
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pipe.stderr.close()
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self.shutdownDialog()
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def shutdownDialog(self):
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'''Принудительно уничтожить процесс kdialog'''
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self.kdialog = None
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pipe = subprocess.Popen("/bin/ps axeo pid,cmd",
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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close_fds=True, shell=True)
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if self.label != None:
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for s in pipe.stdout.readlines():
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if self.label in s:
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try:
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os.kill( int(s.split()[0]), 9 )
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except (OSError,ValueError):
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pass
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self.label = None
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def setValue(self,value):
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'''Установить текущее значения для прогресса'''
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if self.kdialog and value <= self.max:
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env = ""
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if self.execenv:
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env = " ".join(map(lambda x: '%s="%s"'%(x[0],x[1]),\
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self.execenv)) + " "
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oldperc = int(self.value / self.kmax)
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newperc = int(value / self.kmax)
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if newperc > oldperc:
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os.system(env + '/usr/bin/qdbus %s %s value %d >/dev/null'\
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%(self.kdialog,self.suffixSet, newperc))
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self.value = value
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def setMaximum(self,max):
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'''Установить максимальное значения для прогресса'''
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if self.kdialog and self.max == 0 and max != 0:
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env = ""
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if self.execenv:
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env = " ".join(map(lambda x: '%s="%s"'%(x[0],x[1]),\
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self.execenv)) + " "
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os.system(env + '/usr/bin/qdbus %s %s maximum %d >/dev/null'\
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%(self.kdialog,self.suffixSet, 100))
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self.max = max
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self.kmax = max / 100.0
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def setTitle(self,title):
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'''Установить описания прогресса'''
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self.title = title
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if self.kdialog:
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env = ""
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if self.execenv:
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env = " ".join(map(lambda x: '%s="%s"'%(x[0],x[1]),\
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self.execenv)) + " "
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os.system(env + '/usr/bin/qdbus %s setLabelText "%s" >/dev/null'\
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%(self.kdialog,self.title))
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def ProgressBar(*args,**kwarg):
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"""Return instance of object for progress bar"""
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if os.system('which kdialog &>/dev/null') == 0:
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return KProgressBar(*args,**kwarg)
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elif os.system('which Xdialog &>/dev/null') == 0:
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return GProgressBar(*args,**kwarg)
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return NoneProgressBar(*args,**kwarg)
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