Dogcows Code - chaz/openbox/blob - scripts/historyplacement.py

   1 ##############################################################################
   2 ### The history window placement algorithm. ebind historyplacement.place   ###
   3 ### to the ob.EventAction.PlaceWindow event to use it.                     ###
   4 ##############################################################################
   5
   6 import windowplacement # fallback routines
   7
   8 ##############################################################################
   9 ### Options for the historyplacement module (Options in the                ###
  10 ### windowplacement module also apply!):                                   ###
  11 ###                                                                        ###
  12 # ignore_requested_positions - When true, the placement algorithm will     ###
  13 ###                            attempt to place windows even when they     ###
  14 ###                            request a position (like XMMS).             ###
  15 ###                            Note this only applies to normal windows,   ###
  16 ###                            not to special cases like desktops and      ###
  17 ###                            docks.                                      ###
  18 ignore_requested_positions = 0                                             ###
  19 ###                                                                        ###
  20 # fallback - The window placement algorithm that will be used when history ###
  21 ###          placement does not have a place for the window.               ###
  22 fallback = windowplacement.random                                          ###
  23 ###                                                                        ###
  24 # confirm_callback - set this to a function to have the function called    ###
  25 ###                  before attempting to place a window via history. If   ###
  26 ###                  the function returns 'true' then an attempt will be   ###
  27 ###                  made to place the window. If it returns 'false', the  ###
  28 ###                  fallback method will be directly applied instead.     ###
  29 confirm_callback = 0                                                       ###
  30 ###                                                                        ###
  31 # filename - The name of the file where history data will be stored. The   ###
  32 ###          number of the screen is appended onto this filename.          ###
  33 filename = 'historydb'                                                     ###
  34 ###                                                                        ###
  35 ##############################################################################
  36
  37 import otk
  38 import ob
  39 import os
  40 import string
  41
  42 _data = []
  43
  44 class _state:
  45     def __init__(self, appname, appclass, role, x, y):
  46         self.appname = appname
  47         self.appclass = appclass
  48         self.role = role
  49         self.x = x
  50         self.y = y
  51     def __eq__(self, other):
  52         if self.appname == other.appname and \
  53            self.appclass == other.appclass and \
  54            self.role == other.role:
  55             return 1
  56         return 0
  57
  58 def _load(data):
  59     global _data
  60     file = open(os.environ['HOME']+'/.openbox/'+filename+"."+str(data.screen),
  61                 'r')
  62     if file:
  63         # read data
  64         for line in file.readlines():
  65             line = line[:-1] # drop the '\n'
  66             try:
  67                 s = string.split(line, '\0')
  68                 state = _state(s[0], s[1], s[2],
  69                                string.atoi(s[3]), string.atoi(s[4]))
  70
  71                 while len(_data)-1 < data.screen:
  72                     _data.append([])
  73                 _data[data.screen].append(state)
  74
  75             except ValueError:
  76                 pass
  77             except IndexError:
  78                 pass
  79         file.close()
  80
  81 def _save(data):
  82     global _data
  83     file = open(os.environ['HOME']+'/.openbox/'+filename+"."+str(data.screen),
  84                 'w')
  85     if file:
  86         while len(_data)-1 < data.screen:
  87             _data.append([])
  88         for i in _data[data.screen]:
  89             file.write(i.appname + '\0' +
  90                        i.appclass + '\0' +
  91                        i.role + '\0' +
  92                        str(i.x) + '\0' +
  93                        str(i.y) + '\n')
  94         file.close()
  95
  96 def _create_state(data):
  97     global _data
  98     area = data.client.area()
  99     return _state(data.client.appName(), data.client.appClass(),
 100                   data.client.role(), area.x(), area.y())
 101
 102 def _find(screen, state):
 103     global _data
 104     try:
 105         return _data[screen].index(state)
 106     except ValueError:
 107         return -1
 108     except IndexError:
 109         while len(_data)-1 < screen:
 110             _data.append([])
 111         return _find(screen, state) # try again
 112
 113 def place(data):
 114     global _data
 115     if data.client:
 116         if not (ignore_requested_positions and data.client.normal()):
 117             if data.client.positionRequested(): return
 118         state = _create_state(data)
 119         try:
 120             if not confirm_callback or confirm_callback(data):
 121                 print "looking for : " + state.appname +  " : " + \
 122                       state.appclass + " : " + state.role
 123
 124                 i = _find(data.screen, state)
 125                 if i >= 0:
 126                     coords = _data[data.screen][i]
 127                     print "Found in history ("+str(coords.x)+","+\
 128                           str(coords.y)+")"
 129                     data.client.move(coords.x, coords.y)
 130                     return
 131                 else:
 132                     print "No match in history"
 133         except TypeError:
 134             pass
 135     if fallback: fallback(data)
 136
 137 def _save_window(data):
 138     global _data
 139     if data.client:
 140         state = _create_state(data)
 141         print "looking for : " + state.appname +  " : " + state.appclass + \
 142               " : " + state.role
 143
 144         i = _find(data.screen, state)
 145         if i >= 0:
 146             print "replacing"
 147             _data[data.screen][i] = state # replace it
 148         else:
 149             print "appending"
 150             _data[data.screen].append(state)
 151
 152 ob.ebind(ob.EventAction.CloseWindow, _save_window)
 153 ob.ebind(ob.EventAction.Startup, _load)
 154 ob.ebind(ob.EventAction.Shutdown, _save)
 155
 156 print "Loaded historyplacement.py"