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+#!/usr/bin/python
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+''' a widget that shows only a dir listing
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+'''
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+
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+import sys,os,argparse
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+from PyQt4.QtGui import *
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+from PyQt4 import QtGui, QtCore
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+
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+class DirWidget(QListWidget):
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+ ''' a simple widget that shows a list of directories, staring
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+ at the directory passed into the constructor
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+
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+ a mouse click or 'enter' key will send a 'selected' signal to
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+ anyone who connects to this.
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+
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+ the .. parent directory is shown for all dirs except /
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+
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+ the most interesting parts of the interface are:
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+ constructor - send in the directory to view
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+ method - currentPath() returns text of current path
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+ signal - selected calls a slot with a single arg: new path
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+ '''
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+
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+ selected = QtCore.pyqtSignal(str)
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+ def __init__(self, directory='.', parent=None):
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+ super(DirWidget,self).__init__(parent)
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+ self.directory = directory
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+ self.refill()
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+ self.itemActivated.connect(self.selectionByLWI)
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+ # it would be nice to pick up single-mouse-click for selection as well
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+ # but that seems to be a system-preferences global
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+ def selectionByLWI(self, li):
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+ self.directory = os.path.abspath(self.directory + '/' + str(li.text()))
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+ self.refill()
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+ self.selected.emit(self.directory)
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+ def refill(self):
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+ current,dirs,files = os.walk(self.directory,followlinks=True).next()
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+ dirs.sort()
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+ if '/' not in dirs:
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+ dirs = ['..'] + dirs
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+ self.clear()
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+ for d in dirs:
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+ li = QListWidgetItem(d,self)
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+ def currentPath(self):
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+ return self.directory
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+
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+if __name__=="__main__":
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+ def alert(some_text):
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+ os.system('notify-send -t 1500 "file: '+str(some_text) + '"')
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+
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+ a = QApplication([])
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+
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+ qmw = QMainWindow()
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+ dw = DirWidget(parent=qmw)
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+ dw.selected.connect(alert)
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+
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+ qmw.setCentralWidget(dw)
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+ qmw.show()
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+
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+ a.exec_()
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