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 ###########################################################################
   8 include_all_desktops = 0
   9 """If this is non-zero then windows from all desktops will be included in
  10    the stacking list."""
  11 include_icons = 1
  12 """If this is non-zero then windows which are iconified will be included
  13    in the stacking list."""
  14 include_omnipresent = 1
  15 """If this is non-zero then windows which are on all-desktops at once will
  16    be included."""
  17 title_size_limit = 80
  18 """This specifies a rough limit of characters for the cycling list titles.
  19    Titles which are larger will be chopped with an elipsis in their
  20    center."""
  21 activate_while_cycling = 1
  22 """If this is non-zero then windows will be activated as they are
  23    highlighted in the cycling list (except iconified windows)."""
  24 # See focus.avoid_skip_taskbar
  25 # See focuscycle.raise_window
  26 ###########################################################################
  27
  28 def next(data):
  29     """Focus the next window."""
  30     if not data.state:
  31         raise RuntimeError("stackedcycle.next must be bound to a key" +
  32                            "combination with at least one modifier")
  33     _o.cycle(data, 1)
  34
  35 def previous(data):
  36     """Focus the previous window."""
  37     if not data.state:
  38         raise RuntimeError("stackedcycle.previous must be bound to a key" +
  39                            "combination with at least one modifier")
  40     _o.cycle(data, 0)
  41
  42 ###########################################################################
  43 ###########################################################################
  44
  45 ###########################################################################
  46 ###      Internal stuff, should not be accessed outside the module.     ###
  47 ###########################################################################
  48
  49 import otk
  50 import ob
  51 import focus
  52 import focuscycle
  53
  54 class cycledata:
  55     def __init__(self):
  56         self.cycling = 0
  57
  58     def createpopup(self):
  59         self.style = self.screen.style()
  60         self.widget = otk.Widget(ob.openbox, self.style, otk.Widget.Vertical,
  61                                  0, self.style.bevelWidth(), 1)
  62         self.widget.setTexture(self.style.titlebarFocusBackground())
  63
  64     def destroypopup(self):
  65         self.menuwidgets = []
  66         self.widget = 0
  67
  68     def shouldadd(self, client):
  69         """Determines if a client should be added to the list."""
  70         curdesk = self.screen.desktop()
  71         desk = client.desktop()
  72
  73         if not client.normal(): return 0
  74         if not (client.canFocus() or client.focusNotify()): return 0
  75         if focus.avoid_skip_taskbar and client.skipTaskbar(): return 0
  76
  77         if include_icons and client.iconic(): return 1
  78         if include_omnipresent and desk == 0xffffffff: return 1
  79         if include_all_desktops: return 1
  80         if desk == curdesk: return 1
  81
  82         return 0
  83
  84     def populatelist(self):
  85         """Populates self.clients and self.menuwidgets, and then shows and
  86            positions the cycling popup."""
  87
  88         self.widget.hide()
  89
  90         try:
  91             current = self.clients[self.menupos]
  92         except IndexError: current = 0
  93         oldpos = self.menupos
  94         self.menupos = -1
  95
  96         # get the list of clients
  97         self.clients = []
  98         for i in focus._clients:
  99             c = ob.openbox.findClient(i)
 100             if c: self.clients.append(c)
 101
 102         font = self.style.labelFont()
 103         longest = 0
 104         height = font.height()
 105
 106         # make the widgets
 107         i = 0
 108         self.menuwidgets = []
 109         while i < len(self.clients):
 110             c = self.clients[i]
 111             if not self.shouldadd(c):
 112                 # make the clients and menuwidgets lists match
 113                 self.clients.pop(i)
 114                 continue
 115
 116             w = otk.FocusLabel(self.widget)
 117             if current and c.window() == current.window():
 118                 self.menupos = i
 119                 w.focus()
 120             else:
 121                 w.unfocus()
 122             self.menuwidgets.append(w)
 123
 124             if c.iconic(): t = c.iconTitle()
 125             else: t = c.title()
 126             if len(t) > title_size_limit: # limit the length of titles
 127                 t = t[:title_size_limit / 2 - 2] + "..." + \
 128                     t[0 - title_size_limit / 2 - 2:]
 129             length = font.measureString(t)
 130             if length > longest: longest = length
 131             w.setText(t)
 132
 133             i += 1
 134
 135         # the window we were on may be gone
 136         if self.menupos < 0:
 137             # try stay at the same spot in the menu
 138             if oldpos >= len(self.clients):
 139                 self.menupos = len(self.clients) - 1
 140             else:
 141                 self.menupos = oldpos
 142
 143         # fit to the largest item in the menu
 144         for w in self.menuwidgets:
 145             w.fitSize(longest, height)
 146
 147         # show or hide the list and its child widgets
 148         if len(self.clients) > 1:
 149             area = self.screeninfo.rect()
 150             self.widget.update()
 151             self.widget.move(area.x() + (area.width() -
 152                                          self.widget.width()) / 2,
 153                              area.y() + (area.height() -
 154                                          self.widget.height()) / 2)
 155             self.widget.show(1)
 156
 157     def activatetarget(self, final):
 158         try:
 159             client = self.clients[self.menupos]
 160         except IndexError: return # empty list makes for this
 161
 162         # move the to client's desktop if required
 163         if not (client.iconic() or client.desktop() == 0xffffffff or \
 164                 client.desktop() == self.screen.desktop()):
 165             root = self.screeninfo.rootWindow()
 166             ob.send_client_msg(root, otk.Property_atoms().net_current_desktop,
 167                                root, client.desktop())
 168
 169         # send a net_active_window message for the target
 170         if final or not client.iconic():
 171             if final: r = focuscycle.raise_window
 172             else: r = 0
 173             ob.send_client_msg(self.screeninfo.rootWindow(),
 174                                otk.Property_atoms().openbox_active_window,
 175                                client.window(), final, r)
 176
 177     def cycle(self, data, forward):
 178         if not self.cycling:
 179             self.cycling = 1
 180             focus._disable = 1
 181             self.state = data.state
 182             self.screen = ob.openbox.screen(data.screen)
 183             self.screeninfo = otk.display.screenInfo(data.screen)
 184             self.menupos = 0
 185             self.createpopup()
 186             self.clients = [] # so it doesnt try start partway through the list
 187             self.populatelist()
 188
 189             ob.kgrab(self.screen.number(), _grabfunc)
 190             # the pointer grab causes pointer events during the keyboard grab
 191             # to go away, which means we don't get enter notifies when the
 192             # popup disappears, screwing up the focus
 193             ob.mgrab(self.screen.number())
 194
 195         self.menuwidgets[self.menupos].unfocus()
 196         if forward:
 197             self.menupos += 1
 198         else:
 199             self.menupos -= 1
 200         # wrap around
 201         if self.menupos < 0: self.menupos = len(self.clients) - 1
 202         elif self.menupos >= len(self.clients): self.menupos = 0
 203         self.menuwidgets[self.menupos].focus()
 204         if activate_while_cycling:
 205             self.activatetarget(0) # activate, but dont deiconify/unshade/raise
 206
 207     def grabfunc(self, data):
 208         done = 0
 209         # have all the modifiers this started with been released?
 210         if (data.action == ob.KeyAction.Release and
 211             not self.state & data.state):
 212             done = 1
 213         # has Escape been pressed?
 214         if data.action == ob.KeyAction.Press and data.key == "Escape":
 215             done = 1
 216             # revert
 217             self.menupos = 0
 218
 219         if done:
 220             self.cycling = 0
 221             focus._disable = 0
 222             self.activatetarget(1) # activate, and deiconify/unshade/raise
 223             self.destroypopup()
 224             ob.kungrab()
 225             ob.mungrab()
 226
 227 def _newwindow(data):
 228     if _o.cycling: _o.populatelist()
 229
 230 def _closewindow(data):
 231     if _o.cycling: _o.populatelist()
 232
 233 def _grabfunc(data):
 234     _o.grabfunc(data)
 235
 236 ob.ebind(ob.EventAction.NewWindow, _newwindow)
 237 ob.ebind(ob.EventAction.CloseWindow, _closewindow)
 238
 239 _o = cycledata()
 240
 241 print "Loaded stackedcycle.py"