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