Mercurial > fife-parpg

annotate engine/extensions/filebrowser.py @ 147:fb6ccb367dd1

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Added just some docs and a sanityCheck against the difficult to find bugs of the location classes. So if memory usage/load time goes through the roof, try logging 'pool' messages.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 09 Oct 2008 13:36:13 +0000
parents 4a0efb7baf70
children f55979111ba1
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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1 # coding: utf-8
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2
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3 import pychan
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4 import pychan.widgets as widgets
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5
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6 class FileBrowser(object):
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7 """
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8 FileBrowser displays directory and file listings from the vfs.
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9 The fileSelected parameter is a callback invoked when a file selection has been made; its
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10 signature must be fileSelected(path,filename). If selectdir is set, fileSelected's
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11 filename parameter should be optional.
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12 The savefile option provides a box for supplying a new filename that doesn't exist yet.
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13 The selectdir option allows directories to be selected as well as files.
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14 """
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15 def __init__(self, engine, fileSelected, savefile=False, selectdir=False, extensions=('xml',)):
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16 self.engine = engine
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17 self.fileSelected = fileSelected
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18
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19 self._widget = None
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20 self.savefile = savefile
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21 self.selectdir = selectdir
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22
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23 self.extensions = extensions
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24 self.path = './..'
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25 self.dir_list = ('..',) + self.engine.getVFS().listDirectories(self.path)
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26 self.file_list = self.engine.getVFS().listFiles(self.path)
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27
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28 def showBrowser(self):
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29 if self._widget:
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30 self._widget.show()
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31 return
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32 self._widget = pychan.loadXML('content/gui/filebrowser.xml')
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33 self._widget.mapEvents({
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34 'dirList' : self._setDirectory,
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35 'selectButton' : self._selectFile,
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36 'closeButton' : self._widget.hide
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37 })
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38 self._setDirectory()
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39 if self.savefile:
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40 self._file_entry = widgets.TextField(name='saveField', text='')
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41 self._widget.findChild(name="fileColumn").addChild(self._file_entry)
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42 self._widget.show()
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43
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44 def _setDirectory(self):
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45 selection = self._widget.collectData('dirList')
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46 if not (selection < 0):
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47 new_dir = self.dir_list[selection]
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48 lst = self.path.split('/')
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49 if new_dir == '..' and lst[-1] != '..' and lst[-1] != '.':
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50 lst.pop()
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51 else:
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52 lst.append(new_dir)
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53 self.path = '/'.join(lst)
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54
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55 self.dir_list = ('..',) + filter(lambda d: not d.startswith('.'), self.engine.getVFS().listDirectories(self.path))
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56 self.file_list = filter(lambda f: f.split('.')[-1] in self.extensions, self.engine.getVFS().listFiles(self.path))
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57 self._widget.distributeInitialData({
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58 'dirList' : self.dir_list,
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59 'fileList' : self.file_list
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60 })
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61
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62 def _selectFile(self):
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63 self._widget.hide()
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64 selection = self._widget.collectData('fileList')
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65
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66 if self.savefile:
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67 if self._widget.collectData('saveField'):
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68 self.fileSelected(self.path,self._widget.collectData('saveField'))
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69 return
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70
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71 if selection >= 0:
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72 self.fileSelected(self.path,self.file_list[selection])
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73 return
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74
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75 if self.selectdir:
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76 self.fileSelected(self.path)
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77 return
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78
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79 print 'FileBrowser: error, no selection.'