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

   1 ###########################################################################
   2 ### Functions for cycling focus (in a 'stacked' order) between windows. ###
   3 ###########################################################################
   4
   5 ###########################################################################
   6 ###    Options that affect the behavior of the stackedcycle module.     ###
   7 ###              Also see the options in the focus module.              ###
   8 ###########################################################################
   9 include_all_desktops = 0
  10 """If this is non-zero then windows from all desktops will be included in
  11    the stacking list."""
  12 include_icons = 1
  13 """If this is non-zero then windows which are iconified will be included
  14    in the stacking list."""
  15 include_omnipresent = 1
  16 """If this is non-zero then windows which are on all-desktops at once will
  17    be included."""
  18 title_size_limit = 80
  19 """This specifies a rough limit of characters for the cycling list titles.
  20    Titles which are larger will be chopped with an elipsis in their
  21    center."""
  22 activate_while_cycling = 1
  23 """If this is non-zero then windows will be activated as they are
  24    highlighted in the cycling list (except iconified windows)."""
  25 ###########################################################################
  26
  27 def next(data):
  28     """Focus the next window."""
  29     _o.cycle(data, 1)
  30
  31 def previous(data):
  32     """Focus the previous window."""
  33     _o.cycle(data, 0)
  34
  35 ###########################################################################
  36 ###########################################################################
  37
  38 ###########################################################################
  39 ###      Internal stuff, should not be accessed outside the module.     ###
  40 ###########################################################################
  41
  42 import otk
  43 import ob
  44 import focus
  45
  46 class cycledata:
  47     def __init__(self):
  48         self.cycling = 0
  49
  50     def createpopup(self):
  51         self.style = self.screen.style()
  52         self.widget = otk.Widget(ob.openbox, self.style, otk.Widget.Vertical,
  53                                  0, self.style.bevelWidth(), 1)
  54         self.widget.setTexture(self.style.titlebarFocusBackground())
  55
  56     def destroypopup(self):
  57         self.menuwidgets = []
  58         self.widget = 0
  59
  60     def shouldadd(self, client):
  61         """Determines if a client should be added to the list."""
  62         curdesk = self.screen.desktop()
  63         desk = client.desktop()
  64
  65         if not client.normal(): return 0
  66         if not (client.canFocus() or client.focusNotify()): return 0
  67         if focus.avoid_skip_taskbar and client.skipTaskbar(): return 0
  68
  69         if include_icons and client.iconic(): return 1
  70         if include_omnipresent and desk == 0xffffffff: return 1
  71         if include_all_desktops: return 1
  72         if desk == curdesk: return 1
  73
  74         return 0
  75
  76     def populatelist(self):
  77         """Populates self.clients and self.menuwidgets, and then shows and
  78            positions the cycling popup."""
  79
  80         self.widget.hide()
  81
  82         try:
  83             current = self.clients[self.menupos]
  84         except IndexError: current = 0
  85         oldpos = self.menupos
  86         self.menupos = -1
  87
  88         # get the list of clients
  89         self.clients = []
  90         for i in focus._clients:
  91             c = ob.openbox.findClient(i)
  92             if c: self.clients.append(c)
  93
  94         font = self.style.labelFont()
  95         longest = 0
  96         height = font.height()
  97
  98         # make the widgets
  99         i = 0
 100         self.menuwidgets = []
 101         while i < len(self.clients):
 102             c = self.clients[i]
 103             if not self.shouldadd(c):
 104                 # make the clients and menuwidgets lists match
 105                 self.clients.pop(i)
 106                 continue
 107
 108             w = otk.FocusLabel(self.widget)
 109             if current and c.window() == current.window():
 110                 self.menupos = i
 111                 w.focus()
 112             else:
 113                 w.unfocus()
 114             self.menuwidgets.append(w)
 115
 116             if c.iconic(): t = c.iconTitle()
 117             else: t = c.title()
 118             if len(t) > title_size_limit: # limit the length of titles
 119                 t = t[:title_size_limit / 2 - 2] + "..." + \
 120                     t[0 - title_size_limit / 2 - 2:]
 121             length = font.measureString(t)
 122             if length > longest: longest = length
 123             w.setText(t)
 124
 125             i += 1
 126
 127         # the window we were on may be gone
 128         if self.menupos < 0:
 129             # try stay at the same spot in the menu
 130             if oldpos >= len(self.clients):
 131                 self.menupos = len(self.clients) - 1
 132             else:
 133                 self.menupos = oldpos
 134
 135         # fit to the largest item in the menu
 136         for w in self.menuwidgets:
 137             w.fitSize(longest, height)
 138
 139         # show or hide the list and its child widgets
 140         if len(self.clients) > 1:
 141             area = self.screeninfo.rect()
 142             self.widget.update()
 143             self.widget.move(area.x() + (area.width() -
 144                                          self.widget.width()) / 2,
 145                              area.y() + (area.height() -
 146                                          self.widget.height()) / 2)
 147             self.widget.show(1)
 148
 149     def activatetarget(self, final):
 150         try:
 151             client = self.clients[self.menupos]
 152         except IndexError: return # empty list makes for this
 153
 154         # move the to client's desktop if required
 155         if not (client.iconic() or client.desktop() == 0xffffffff or \
 156                 client.desktop() == self.screen.desktop()):
 157             root = self.screeninfo.rootWindow()
 158             ob.send_client_msg(root, otk.Property_atoms().net_current_desktop,
 159                                root, client.desktop())
 160
 161         # send a net_active_window message for the target
 162         if final or not client.iconic():
 163             if final: r = focus.raise_window
 164             else: r = 0
 165             ob.send_client_msg(self.screeninfo.rootWindow(),
 166                                otk.Property_atoms().openbox_active_window,
 167                                client.window(), final, r)
 168
 169     def cycle(self, data, forward):
 170         if not self.cycling:
 171             self.cycling = 1
 172             focus._disable = 1
 173             self.state = data.state
 174             self.screen = ob.openbox.screen(data.screen)
 175             self.screeninfo = otk.display.screenInfo(data.screen)
 176             self.menupos = 0
 177             self.createpopup()
 178             self.clients = [] # so it doesnt try start partway through the list
 179             self.populatelist()
 180
 181             ob.kgrab(self.screen.number(), _grabfunc)
 182             # the pointer grab causes pointer events during the keyboard grab
 183             # to go away, which means we don't get enter notifies when the
 184             # popup disappears, screwing up the focus
 185             ob.mgrab(self.screen.number())
 186
 187         self.menuwidgets[self.menupos].unfocus()
 188         if forward:
 189             self.menupos += 1
 190         else:
 191             self.menupos -= 1
 192         # wrap around
 193         if self.menupos < 0: self.menupos = len(self.clients) - 1
 194         elif self.menupos >= len(self.clients): self.menupos = 0
 195         self.menuwidgets[self.menupos].focus()
 196         if activate_while_cycling:
 197             self.activatetarget(0) # activate, but dont deiconify/unshade/raise
 198
 199     def grabfunc(self, data):
 200         if data.action == ob.KeyAction.Release:
 201             # have all the modifiers this started with been released?
 202             if not self.state & data.state:
 203                 self.cycling = 0
 204                 focus._disable = 0
 205                 self.activatetarget(1) # activate, and deiconify/unshade/raise
 206                 self.destroypopup()
 207                 ob.kungrab()
 208                 ob.mungrab()
 209
 210
 211 def _newwindow(data):
 212     if _o.cycling: _o.populatelist()
 213
 214 def _closewindow(data):
 215     if _o.cycling: _o.populatelist()
 216
 217 def _grabfunc(data):
 218     _o.grabfunc(data)
 219
 220 ob.ebind(ob.EventAction.NewWindow, _newwindow)
 221 ob.ebind(ob.EventAction.CloseWindow, _closewindow)
 222
 223 _o = cycledata()