3 # Uzbl tabbing wrapper using a fifo socket interface
4 # Copywrite (c) 2009, Tom Adams <tom@holizz.com>
5 # Copywrite (c) 2009, quigybo <?>
6 # Copywrite (c) 2009, Mason Larobina <mason.larobina@gmail.com>
8 # This program is free software: you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation, either version 3 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 # Tom Adams <tom@holizz.com>
24 # Wrote the original uzbl_tabbed.py as a proof of concept.
27 # Made signifigant headway on the uzbl_tabbing.py script on the
28 # uzbl wiki <http://www.uzbl.org/wiki/uzbl_tabbed>
30 # Mason Larobina <mason.larobina@gmail.com>
31 # Rewrite of the uzbl_tabbing.py script to use a fifo socket interface
32 # and inherit configuration options from the user's uzbl config.
39 # - status_background colour is not honoured (reverts to gtk default).
40 # - new windows are not caught and opened in a new tab.
41 # - need an easier way to read a uzbl instances window title instead of
42 # spawning a shell to spawn uzblctrl to communicate to the uzbl
43 # instance via socket to dump the window title to then pipe it to
44 # the tabbing managers fifo socket.
45 # - probably missing some os.path.expandvars somewhere.
49 # - add command line options to use a different session file, not use a
50 # session file and or open a uri on starup.
51 # - ellipsize individual tab titles when the tab-list becomes over-crowded
52 # - add "<" & ">" arrows to tablist to indicate that only a subset of the
53 # currently open tabs are being displayed on the tablist.
54 # - probably missing some os.path.expandvars somewhere and other
55 # user-friendly.. things, this is still a very early version.
56 # - fix status_background issues & style tablist.
57 # - add the small tab-list display when both gtk tabs and text vim-like
58 # tablist are hidden (I.e. [ 1 2 3 4 5 ])
77 sys.stderr.write("%s\n"%msg)
79 if 'XDG_DATA_HOME' in os.environ.keys() and os.environ['XDG_DATA_HOME']:
80 data_dir = os.path.join(os.environ['XDG_DATA_HOME'], 'uzbl/')
83 data_dir = os.path.join(os.environ['HOME'], '.local/share/uzbl/')
85 # === Default Configuration ====================================================
87 # Location of your uzbl configuration file.
88 uzbl_config = os.path.join(os.environ['HOME'],'.config/uzbl/config')
90 # All of these settings can be inherited from your uzbl config file.
91 config = {'show_tabs': True,
92 'show_gtk_tabs': False,
93 'switch_to_new_tabs': True,
96 'icon_path': os.path.join(data_dir, 'uzbl.png'),
97 'session_file': os.path.join(data_dir, 'session'),
98 'tab_colours': 'foreground = "#000000"',
99 'selected_tab': 'foreground = "#000000" background="#bbbbbb"',
100 'window_size': "800,800",
101 'monospace_size': 10,
102 'bind_new_tab': 'gn',
103 'bind_tab_from_clipboard': 'gY',
104 'bind_close_tab': 'gC',
105 'bind_next_tab': 'gt',
106 'bind_prev_tab': 'gT',
107 'bind_goto_tab': 'gi_',
108 'bind_goto_first': 'g<',
109 'bind_goto_last':'g>'}
111 # === End Configuration =======================================================
113 def readconfig(uzbl_config, config):
114 '''Loads relevant config from the users uzbl config file into the global
115 config dictionary.'''
117 if not os.path.exists(uzbl_config):
118 error("Unable to load config %r" % uzbl_config)
121 # Define parsing regular expressions
122 isint = re.compile("^[0-9]+$").match
123 findsets = re.compile("^set\s+([^\=]+)\s*\=\s*(.+)$",\
124 re.MULTILINE).findall
126 h = open(os.path.expandvars(uzbl_config), 'r')
130 for (key, value) in findsets(rawconfig):
132 if key not in config.keys(): continue
133 if isint(value): value = int(value)
138 '''Recursively make directories.
139 I.e. `mkdir -p /some/nonexistant/path/`'''
141 path, sep = os.path.realpath(path), os.path.sep
142 dirs = path.split(sep)
143 for i in range(2,len(dirs)+1):
144 dir = os.path.join(sep,sep.join(dirs[:i]))
145 if not os.path.exists(dir):
150 '''To infinity and beyond!'''
159 '''A tabbed version of uzbl using gtk.Notebook'''
162 '''Uzbl instance meta-data/meta-action object.'''
164 def __init__(self, parent, socket, fifo, pid, url='', switch=True):
166 self.socket = socket # the gtk socket
169 self.title = "New tab"
173 self._switch_on_config = switch
175 self._configured = False
177 # When notebook tab deleted the kill switch is raised.
180 # Queue binds for uzbl child
181 self.parent.config_uzbl(self)
184 def flush(self, timer_call=False):
185 '''Flush messages from the queue.'''
188 error("Flush called on dead page.")
191 if os.path.exists(self.fifo):
192 h = open(self.fifo, 'w')
193 while len(self._outgoing):
194 msg = self._outgoing.pop(0)
195 h.write("%s\n" % msg)
198 elif not timer_call and self._configured:
199 # TODO: I dont know what to do here. A previously thought
200 # alright uzbl client fifo socket has now gone missing.
201 # I think this should be fatal (at least for the page in
202 # question). I'll wait until this error appears in the wild.
203 error("Error: fifo %r lost in action." % self.fifo)
205 if not len(self._outgoing) and timer_call:
206 self._configured = True
208 if timer_call in self.timers.keys():
209 gobject.source_remove(self.timers[timer_call])
210 del self.timers[timer_call]
212 if self._switch_on_config:
213 notebook = list(self.parent.notebook)
215 tabid = notebook.index(self.socket)
216 self.parent.goto_tab(tabid)
221 return len(self._outgoing)
225 '''Probes the client for information about its self.'''
227 # Ugly way of getting the socket path. Screwed if fifo is in any
228 # other part of the fifo socket path.
230 socket = 'socket'.join(self.fifo.split('fifo'))
233 subcmd = 'print title %s @<document.title>@' % self.pid
234 cmd = 'uzblctrl -s "%s" -c "%s" > "%s" &' % (socket, subcmd, \
235 self.parent.fifo_socket)
237 subprocess.Popen([cmd], shell=True)
239 self._lastprobe = time.time()
243 '''Child fifo write function.'''
245 self._outgoing.append(msg)
246 # Flush messages from the queue if able.
251 '''Create tablist, window and notebook.'''
254 self._pidcounter = counter()
255 self.next_pid = self._pidcounter.next
261 self.window = gtk.Window()
263 window_size = map(int, config['window_size'].split(','))
264 self.window.set_default_size(*window_size)
267 error("Invalid value for default_size in config file.")
269 self.window.set_title("Uzbl Browser")
270 self.window.set_border_width(0)
272 # Set main window icon
273 icon_path = config['icon_path']
274 if os.path.exists(icon_path):
275 self.window.set_icon(gtk.gdk.pixbuf_new_from_file(icon_path))
278 icon_path = '/usr/share/uzbl/examples/data/uzbl/uzbl.png'
279 if os.path.exists(icon_path):
280 self.window.set_icon(gtk.gdk.pixbuf_new_from_file(icon_path))
282 # Attach main window event handlers
283 self.window.connect("delete-event", self.quit)
286 if config['show_tabs']:
288 self.window.add(vbox)
290 self.tablist = gtk.Label()
291 self.tablist.set_use_markup(True)
292 self.tablist.set_justify(gtk.JUSTIFY_LEFT)
293 self.tablist.set_line_wrap(False)
294 self.tablist.set_selectable(False)
295 self.tablist.set_padding(2,2)
296 self.tablist.set_alignment(0,0)
297 self.tablist.set_ellipsize(pango.ELLIPSIZE_END)
298 self.tablist.set_text(" ")
300 vbox.pack_start(self.tablist, False, False, 0)
303 self.notebook = gtk.Notebook()
304 self.notebook.set_show_tabs(config['show_gtk_tabs'])
305 self.notebook.set_show_border(False)
306 self.notebook.connect("page-removed", self.tab_closed)
307 self.notebook.connect("switch-page", self.tab_changed)
309 if config['show_tabs']:
310 vbox.pack_end(self.notebook, True, True, 0)
313 self.window.add(self.notebook)
316 self.wid = self.notebook.window.xid
317 # Fifo socket definition
318 self._refindfifos = re.compile('^uzbl_fifo_%s_[0-9]+$' % self.wid)
319 fifo_filename = 'uzbltabbed_%d' % os.getpid()
320 self.fifo_socket = os.path.join(config['fifo_dir'], fifo_filename)
324 self._create_fifo_socket(self.fifo_socket)
325 self._setup_fifo_watcher(self.fifo_socket)
330 # Update tablist timer
331 timer = "update-tablist"
332 timerid = gobject.timeout_add(500, self.update_tablist,timer)
333 self._timers[timer] = timerid
335 # Due to the hackish way in which the window titles are read
336 # too many window will cause the application to slow down insanely
337 timer = "probe-clients"
338 timerid = gobject.timeout_add(1000, self.probe_clients, timer)
339 self._timers[timer] = timerid
344 def _find_fifos(self, fifo_dir):
345 '''Find all child fifo sockets in fifo_dir.'''
347 dirlist = '\n'.join(os.listdir(fifo_dir))
348 allfifos = self._refindfifos.findall(dirlist)
349 return sorted(allfifos)
352 def _create_fifo_socket(self, fifo_socket):
353 '''Create interprocess communication fifo socket.'''
355 if os.path.exists(fifo_socket):
356 if not os.access(fifo_socket, os.F_OK | os.R_OK | os.W_OK):
357 os.mkfifo(fifo_socket)
360 basedir = os.path.dirname(self.fifo_socket)
361 if not os.path.exists(basedir):
363 os.mkfifo(self.fifo_socket)
365 print "Listening on %s" % self.fifo_socket
368 def _setup_fifo_watcher(self, fifo_socket, fd=None):
369 '''Open fifo socket fd and setup gobject IO_IN & IO_HUP watchers.
370 Also log the creation of a fd and store the the internal
371 self._watchers dictionary along with the filename of the fd.'''
373 #TODO: Convert current self._watcher dict manipulation to the better
374 # IMHO self._timers handling by using "timer-keys" as the keys instead
375 # of the fifo fd's as keys.
379 if fd in self._watchers.keys():
380 d = self._watchers[fd]
381 watchers = d['watchers']
382 for watcher in list(watchers):
383 gobject.source_remove(watcher)
384 watchers.remove(watcher)
385 del self._watchers[fd]
387 fd = os.open(fifo_socket, os.O_RDONLY | os.O_NONBLOCK)
388 self._watchers[fd] = {'watchers': [], 'filename': fifo_socket}
390 watcher = self._watchers[fd]['watchers'].append
391 watcher(gobject.io_add_watch(fd, gobject.IO_IN, self.read_fifo))
392 watcher(gobject.io_add_watch(fd, gobject.IO_HUP, self.fifo_hangup))
395 def probe_clients(self, timer_call):
396 '''Load balance probe all uzbl clients for up-to-date window titles
400 probetimes = [(s, p[s]._lastprobe) for s in p.keys()]
401 socket, lasttime = sorted(probetimes, key=lambda t: t[1])[0]
403 if (time.time()-lasttime) > 5:
404 # Probe a uzbl instance at most once every 10 seconds
405 self.pages[socket].probe()
410 def fifo_hangup(self, fd, cb_condition):
411 '''Handle fifo socket hangups.'''
413 # Close fd, re-open fifo_socket and watch.
414 self._setup_fifo_watcher(self.fifo_socket, fd)
416 # And to kill any gobject event handlers calling this function:
420 def read_fifo(self, fd, cb_condition):
421 '''Read from fifo socket and handle fifo socket hangups.'''
423 self._buffer = os.read(fd, 1024)
424 temp = self._buffer.split("\n")
425 self._buffer = temp.pop()
427 for cmd in [s.strip().split() for s in temp if len(s.strip())]:
430 self.parse_command(cmd)
434 error("Invalid command: %s" % ' '.join(cmd))
438 def parse_command(self, cmd):
439 '''Parse instructions from uzbl child processes.'''
441 # Commands ( [] = optional, {} = required )
443 # open new tab and head to optional uri.
445 # close current tab or close via tab id.
447 # open next tab or n tabs down. Supports negative indexing.
449 # open prev tab or n tabs down. Supports negative indexing.
456 # title {pid} {document-title}
457 # updates tablist title.
458 # url {pid} {document-location}
460 # WARNING SOME OF THESE COMMANDS MIGHT NOT BE WORKING YET OR FAIL.
469 elif cmd[0] == "newfromclip":
470 url = subprocess.Popen(['xclip','-selection','clipboard','-o'],\
471 stdout=subprocess.PIPE).communicate()[0]
475 elif cmd[0] == "close":
477 self.close_tab(int(cmd[1]))
482 elif cmd[0] == "next":
484 self.next_tab(int(cmd[1]))
489 elif cmd[0] == "prev":
491 self.prev_tab(int(cmd[1]))
496 elif cmd[0] == "goto":
497 self.goto_tab(int(cmd[1]))
499 elif cmd[0] == "first":
502 elif cmd[0] == "last":
505 elif cmd[0] in ["title", "url"]:
507 uzbl = self.get_uzbl_by_pid(int(cmd[1]))
509 setattr(uzbl, cmd[0], ' '.join(cmd[2:]))
511 error("Cannot find uzbl instance with pid %r" % int(cmd[1]))
513 error("Unknown command: %s" % ' '.join(cmd))
516 def get_uzbl_by_pid(self, pid):
517 '''Return uzbl instance by pid.'''
519 for socket in self.pages.keys():
520 if self.pages[socket].pid == pid:
521 return self.pages[socket]
525 def new_tab(self,url='', switch=True):
526 '''Add a new tab to the notebook and start a new instance of uzbl.
527 Use the switch option to negate config['switch_to_new_tabs'] option
528 when you need to load multiple tabs at a time (I.e. like when
529 restoring a session from a file).'''
531 pid = self.next_pid()
532 socket = gtk.Socket()
534 self.notebook.append_page(socket)
535 sid = socket.get_id()
538 url = '--uri %s' % url
540 fifo_filename = 'uzbl_fifo_%s_%0.2d' % (self.wid, pid)
541 fifo_socket = os.path.join(config['fifo_dir'], fifo_filename)
542 uzbl = self.UzblInstance(self, socket, fifo_socket, pid,\
543 url=url, switch=switch)
544 self.pages[socket] = uzbl
545 cmd = 'uzbl -s %s -n %s_%0.2d %s &' % (sid, self.wid, pid, url)
546 subprocess.Popen([cmd], shell=True)
548 # Add gobject timer to make sure the config is pushed when fifo socket
550 timerid = gobject.timeout_add(100, uzbl.flush, "flush-initial-config")
551 uzbl.timers['flush-initial-config'] = timerid
553 self.update_tablist()
556 def config_uzbl(self, uzbl):
557 '''Send bind commands for tab new/close/next/prev to a uzbl
561 bind_format = 'bind %s = sh "echo \\\"%s\\\" > \\\"%s\\\""'
562 bind = lambda key, action: binds.append(bind_format % (key, action, \
565 # Keys are defined in the config section
566 # bind ( key , command back to fifo )
567 bind(config['bind_new_tab'], 'new')
568 bind(config['bind_tab_from_clipboard'], 'newfromclip')
569 bind(config['bind_close_tab'], 'close')
570 bind(config['bind_next_tab'], 'next')
571 bind(config['bind_prev_tab'], 'prev')
572 bind(config['bind_goto_tab'], 'goto %s')
573 bind(config['bind_goto_first'], 'goto 0')
574 bind(config['bind_goto_last'], 'goto -1')
576 uzbl.send("\n".join(binds))
579 def goto_tab(self, n):
580 '''Goto tab n (supports negative indexing).'''
582 notebook = list(self.notebook)
586 i = notebook.index(page)
587 self.notebook.set_current_page(i)
592 self.update_tablist()
595 def next_tab(self, n=1):
596 '''Switch to next tab or n tabs right.'''
599 numofpages = self.notebook.get_n_pages()
600 pagen = self.notebook.get_current_page() + n
601 self.notebook.set_current_page( pagen % numofpages )
603 self.update_tablist()
606 def prev_tab(self, n=1):
607 '''Switch to prev tab or n tabs left.'''
610 numofpages = self.notebook.get_n_pages()
611 pagen = self.notebook.get_current_page() - n
614 self.notebook.set_current_page(pagen)
616 self.update_tablist()
619 def close_tab(self, tabid=None):
620 '''Closes current tab. Supports negative indexing.'''
623 tabid = self.notebook.get_current_page()
626 socket = list(self.notebook)[tabid]
629 error("Invalid index. Cannot close tab.")
632 uzbl = self.pages[socket]
634 for timer in uzbl.timers.keys():
635 error("Removing timer %r %r" % (timer, uzbl.timers[timer]))
636 gobject.source_remove(uzbl.timers[timer])
640 del self.pages[socket]
641 self.notebook.remove_page(tabid)
643 self.update_tablist()
646 def tab_closed(self, notebook, socket, page_num):
647 '''Close the window if no tabs are left. Called by page-removed
650 if socket in self.pages.keys():
651 uzbl = self.pages[socket]
652 for timer in uzbl.timers.keys():
653 error("Removing timer %r %r" % (timer, uzbl.timers[timer]))
654 gobject.source_remove(uzbl.timers[timer])
658 del self.pages[socket]
660 if self.notebook.get_n_pages() == 0:
663 self.update_tablist()
666 def tab_changed(self, notebook, page, page_num):
667 '''Refresh tab list. Called by switch-page signal.'''
669 self.update_tablist()
672 def update_tablist(self, timer_call=None):
673 '''Upate tablist status bar.'''
677 normal, selected = config['tab_colours'], config['selected_tab']
678 tab_format = "<span %s> [ %d %s ] </span>"
680 uzblkeys = self.pages.keys()
681 curpage = self.notebook.get_current_page()
683 for index, socket in enumerate(self.notebook):
684 if socket not in uzblkeys:
685 #error("Theres a socket in the notebook that I have no uzbl "\
688 uzbl = self.pages[socket]
695 pango += tab_format % (colours, index, uzbl.title)
697 self.tablist.set_markup(pango)
702 def quit(self, window, event):
703 '''Cleanup the application and quit. Called by delete-event signal.'''
705 for fd in self._watchers.keys():
706 d = self._watchers[fd]
707 watchers = d['watchers']
708 for watcher in list(watchers):
709 gobject.source_remove(watcher)
711 for timer in self._timers.keys():
712 gobject.source_remove(self._timers[timer])
714 if os.path.exists(self.fifo_socket):
715 os.unlink(self.fifo_socket)
716 print "Unlinked %s" % self.fifo_socket
718 if config['save_session']:
719 session_file = os.path.expandvars(config['session_file'])
720 if not os.path.isfile(session_file):
721 dirname = os.path.dirname(session_file)
723 h = open(session_file, 'w')
724 h.write('current = %s\n' % self.notebook.get_current_page())
726 for socket in list(self.notebook):
727 if socket not in self.pages.keys(): continue
728 uzbl = self.pages[socket]
729 uzbl.send('sh "echo $6 >> %s"' % session_file)
737 if __name__ == "__main__":
739 # Read from the uzbl config into the global config dictionary.
740 readconfig(uzbl_config, config)
744 if os.path.isfile(os.path.expandvars(config['session_file'])):
745 h = open(os.path.expandvars(config['session_file']),'r')
746 urls = [s.strip() for s in h.readlines()]
750 if url.startswith("current"):
751 current = int(url.split()[-1])
753 uzbl.new_tab(url, False)