class Application(BaseApplication.BaseApplication):
"""The application class represents a group of browser windows."""
def __init__(self, prefs=None, display=None):
self.root = Tk(className='Grail', screenName=display)
self.root.withdraw()
resources = os.path.join(script_dir, "data", "Grail.ad")
if os.path.isfile(resources):
self.root.option_readfile(resources, "startupFile")
BaseApplication.BaseApplication.__init__(self, prefs)
# The stylesheet must be initted before any Viewers, so it
# registers its' prefs callbacks first, hence reloads before the
# viewers reconfigure w.r.t. the new styles.
self.stylesheet = Stylesheet.Stylesheet(self.prefs)
self.load_images = 1 # Overridden by cmd line or pref.
# socket management
sockets = self.prefs.GetInt('sockets', 'number')
self.sq = SocketQueue(sockets)
self.prefs.AddGroupCallback('sockets',
lambda self=self: \
self.sq.change_max(
self.prefs.GetInt('sockets',
'number')))
# initialize on_exit_methods before global_history
self.on_exit_methods = []
self.global_history = GlobalHistory.GlobalHistory(self)
self.login_cache = {}
self.rexec_cache = {}
self.url_cache = CacheManager(self)
self.image_cache = ImageCache(self.url_cache)
self.auth = AuthenticationManager(self)
self.root.report_callback_exception = self.report_callback_exception
if sys.stdin.isatty():
# only useful if stdin might generate KeyboardInterrupt
self.keep_alive()
self.browsers = []
self.iostatuspanel = None
self.in_exception_dialog = None
from ancillary import Greek
for k, v in Greek.entitydefs.items():
Application.dingbatimages[k] = (v, '_sym')
self.root.bind_class("Text", "<Alt-Left>", self.dummy_event)
self.root.bind_class("Text", "<Alt-Right>", self.dummy_event)
def dummy_event(self, event):
pass
def register_on_exit(self, method):
self.on_exit_methods.append(method)
def unregister_on_exit(self, method):
try:
self.on_exit_methods.remove(method)
except ValueError:
pass
def exit_notification(self):
for m in self.on_exit_methods[:]:
try:
m()
except:
pass
def add_browser(self, browser):
self.browsers.append(browser)
def del_browser(self, browser):
try:
self.browsers.remove(browser)
except ValueError:
pass
def quit(self):
self.root.quit()
def open_io_status_panel(self):
if not self.iostatuspanel:
from ancillary import IOStatusPanel
self.iostatuspanel = IOStatusPanel.IOStatusPanel(self)
else:
self.iostatuspanel.reopen()
def maybe_quit(self):
if not (self.embedded or self.browsers):
self.quit()
def go(self):
try:
try:
if ilu_tk:
ilu_tk.RunMainLoop()
else:
self.root.mainloop()
except KeyboardInterrupt:
pass
finally:
self.exit_notification()
def keep_alive(self):
# Exercise the Python interpreter regularly so keyboard
# interrupts get through
self.root.tk.createtimerhandler(KEEPALIVE_TIMER, self.keep_alive)
def get_cached_image(self, url):
return self.image_cache.get_image(url)
def set_cached_image(self, url, image, owner=None):
self.image_cache.set_image(url, image, owner)
def open_url(self, url, method, params, reload=0, data=None):
api = self.url_cache.open(url, method, params, reload, data=data)
api._url_ = url
return api
def open_url_simple(self, url):
api = self.open_url(url, 'GET', {})
errcode, errmsg, meta = api.getmeta()
if errcode != 200:
raise IOError(('url open error', errcode, errmsg, meta))
return URLReadWrapper(api, meta)
def get_cache_keys(self):
"""For applets."""
return self.url_cache.items.keys()
def decode_pipeline(self, fp, content_encoding, error=1):
if self.decode_prog.has_key(content_encoding):
prog = self.decode_prog[content_encoding]
if not prog: return fp
tfn = tempfile.mktemp()
ok = 0
try:
temp = open(tfn, 'w')
BUFSIZE = 8192
while 1:
buf = fp.read(BUFSIZE)
if not buf: break
temp.write(buf)
temp.close()
ok = 1
finally:
if not ok:
try:
os.unlink(tfn)
except os.error:
pass
pipeline = '%s <%s; rm -f %s' % (prog, tfn, tfn)
# XXX What if prog fails?
return os.popen(pipeline, 'r')
if error:
self.error_dialog(
IOError,
"Can't decode content-encoding: %s" % content_encoding)
return None
decode_prog = {
'gzip': 'gzip -d',
'x-gzip': 'gzip -d',
'compress': 'compress -d',
'x-compress': 'compress -d',
}
def exception_dialog(self, message="", root=None):
exc, val, tb = sys.exc_type, sys.exc_value, sys.exc_traceback
self.exc_dialog(message, exc, val, tb, root)
def report_callback_exception(self, exc, val, tb, root=None):
self.exc_dialog("in a callback function", exc, val, tb, root)
def exc_dialog(self, message, exc, val, tb, root=None):
if self.in_exception_dialog:
print()
print("*** Recursive exception", message)
import traceback
traceback.print_exception(exc, val, tb)
return
self.in_exception_dialog = 1
def f(s=self, m=message, e=exc, v=val, t=tb, root=root):
s._exc_dialog(m, e, v, t, root)
if TkVersion >= 4.1:
self.root.after_idle(f)
else:
self.root.after(0, f)
def _exc_dialog(self, message, exc, val, tb, root=None):
# XXX This needn't be a modal dialog --
# XXX should SafeDialog be changed to support callbacks?
from utils import SafeDialog
msg = "An exception occurred " + str(message) + " :\n"
msg = msg + str(exc) + " : " + str(val)
dlg = SafeDialog.Dialog(
root or self.root,
text=msg,
title="Python Exception: " + str(exc),
bitmap='error',
default=0,
strings=("OK", "Show traceback"),
)
self.in_exception_dialog = 0
if dlg.num == 1:
self.traceback_dialog(exc, val, tb)
def traceback_dialog(self, exc, val, tb):
# XXX This could actually just create a new Browser window...
from utils import TbDialog
TbDialog.TracebackDialog(self.root, exc, val, tb)
def error_dialog(self, exc, msg, root=None):
# Display an error dialog.
# Return when the user clicks OK
# XXX This needn't be a modal dialog
from utils import SafeDialog
if type(msg) in (List, Tuple):
s = ''
for item in msg:
s = s + ':\n' + str(item)
msg = s[2:]
else:
msg = str(msg)
SafeDialog.Dialog(
root or self.root,
text=msg,
title="Error: " + str(exc),
bitmap='error',
default=0,
strings=('OK', ),
)
dingbatimages = {
'ldots': ('...', None), # math stuff
'sp': (' ', None),
'hairsp': ('\240', None),
'thinsp': ('\240', None),
'emdash': ('--', None),
'endash': ('-', None),
'mdash': ('--', None),
'ndash': ('-', None),
'ensp': (' ', None)
}
def clear_dingbat(self, entname):
if self.dingbatimages.has_key(entname):
del self.dingbatimages[entname]
def set_dingbat(self, entname, entity):
self.dingbatimages[entname] = entity
def load_dingbat(self, entname):
if self.dingbatimages.has_key(entname):
return self.dingbatimages[entname]
gifname = grailutil.which(entname + '.gif', self.iconpath)
if gifname:
img = PhotoImage(file=gifname, master=self.root)
self.dingbatimages[entname] = img
return img
self.dingbatimages[entname] = None
return None
class Application(BaseApplication.BaseApplication):
"""The application class represents a group of browser windows."""
def __init__(self, prefs=None, display=None):
self.root = Tk(className='Grail', screenName=display)
self.root.withdraw()
resources = os.path.join(script_dir, "data", "Grail.ad")
if os.path.isfile(resources):
self.root.option_readfile(resources, "startupFile")
BaseApplication.BaseApplication.__init__(self, prefs)
# The stylesheet must be initted before any Viewers, so it
# registers its' prefs callbacks first, hence reloads before the
# viewers reconfigure w.r.t. the new styles.
self.stylesheet = Stylesheet.Stylesheet(self.prefs)
self.load_images = 1 # Overridden by cmd line or pref.
# socket management
sockets = self.prefs.GetInt('sockets', 'number')
self.sq = SocketQueue(sockets)
self.prefs.AddGroupCallback('sockets',
lambda self=self: \
self.sq.change_max(
self.prefs.GetInt('sockets',
'number')))
# initialize on_exit_methods before global_history
self.on_exit_methods = []
self.global_history = GlobalHistory.GlobalHistory(self)
self.login_cache = {}
self.rexec_cache = {}
self.url_cache = CacheManager(self)
self.image_cache = ImageCache(self.url_cache)
self.auth = AuthenticationManager(self)
self.root.report_callback_exception = self.report_callback_exception
if sys.stdin.isatty():
# only useful if stdin might generate KeyboardInterrupt
self.keep_alive()
self.browsers = []
self.iostatuspanel = None
self.in_exception_dialog = None
import Greek
for k, v in Greek.entitydefs.items():
Application.dingbatimages[k] = (v, '_sym')
self.root.bind_class("Text", "<Alt-Left>", self.dummy_event)
self.root.bind_class("Text", "<Alt-Right>", self.dummy_event)
def dummy_event(self, event):
pass
def register_on_exit(self, method):
self.on_exit_methods.append(method)
def unregister_on_exit(self, method):
try: self.on_exit_methods.remove(method)
except ValueError: pass
def exit_notification(self):
for m in self.on_exit_methods[:]:
try: m()
except: pass
def add_browser(self, browser):
self.browsers.append(browser)
def del_browser(self, browser):
try: self.browsers.remove(browser)
except ValueError: pass
def quit(self):
self.root.quit()
def open_io_status_panel(self):
if not self.iostatuspanel:
import IOStatusPanel
self.iostatuspanel = IOStatusPanel.IOStatusPanel(self)
else:
self.iostatuspanel.reopen()
def maybe_quit(self):
if not (self.embedded or self.browsers):
self.quit()
def go(self):
try:
try:
if ilu_tk:
ilu_tk.RunMainLoop()
else:
self.root.mainloop()
except KeyboardInterrupt:
pass
finally:
self.exit_notification()
def keep_alive(self):
# Exercise the Python interpreter regularly so keyboard
# interrupts get through
self.root.tk.createtimerhandler(KEEPALIVE_TIMER, self.keep_alive)
def get_cached_image(self, url):
return self.image_cache.get_image(url)
def set_cached_image(self, url, image, owner=None):
self.image_cache.set_image(url, image, owner)
def open_url(self, url, method, params, reload=0, data=None):
api = self.url_cache.open(url, method, params, reload, data=data)
api._url_ = url
return api
def open_url_simple(self, url):
api = self.open_url(url, 'GET', {})
errcode, errmsg, meta = api.getmeta()
if errcode != 200:
raise IOError, ('url open error', errcode, errmsg, meta)
return URLReadWrapper(api, meta)
def get_cache_keys(self):
"""For applets."""
return self.url_cache.items.keys()
def decode_pipeline(self, fp, content_encoding, error=1):
if self.decode_prog.has_key(content_encoding):
prog = self.decode_prog[content_encoding]
if not prog: return fp
tfn = tempfile.mktemp()
ok = 0
try:
temp = open(tfn, 'w')
BUFSIZE = 8192
while 1:
buf = fp.read(BUFSIZE)
if not buf: break
temp.write(buf)
temp.close()
ok = 1
finally:
if not ok:
try:
os.unlink(tfn)
except os.error:
pass
pipeline = '%s <%s; rm -f %s' % (prog, tfn, tfn)
# XXX What if prog fails?
return os.popen(pipeline, 'r')
if error:
self.error_dialog(IOError,
"Can't decode content-encoding: %s" % content_encoding)
return None
decode_prog = {
'gzip': 'gzip -d',
'x-gzip': 'gzip -d',
'compress': 'compress -d',
'x-compress': 'compress -d',
}
def exception_dialog(self, message="", root=None):
exc, val, tb = sys.exc_type, sys.exc_value, sys.exc_traceback
self.exc_dialog(message, exc, val, tb, root)
def report_callback_exception(self, exc, val, tb, root=None):
self.exc_dialog("in a callback function", exc, val, tb, root)
def exc_dialog(self, message, exc, val, tb, root=None):
if self.in_exception_dialog:
print
print "*** Recursive exception", message
import traceback
traceback.print_exception(exc, val, tb)
return
self.in_exception_dialog = 1
def f(s=self, m=message, e=exc, v=val, t=tb, root=root):
s._exc_dialog(m, e, v, t, root)
if TkVersion >= 4.1:
self.root.after_idle(f)
else:
self.root.after(0, f)
def _exc_dialog(self, message, exc, val, tb, root=None):
# XXX This needn't be a modal dialog --
# XXX should SafeDialog be changed to support callbacks?
import SafeDialog
msg = "An exception occurred " + str(message) + " :\n"
msg = msg + str(exc) + " : " + str(val)
dlg = SafeDialog.Dialog(root or self.root,
text=msg,
title="Python Exception: " + str(exc),
bitmap='error',
default=0,
strings=("OK", "Show traceback"),
)
self.in_exception_dialog = 0
if dlg.num == 1:
self.traceback_dialog(exc, val, tb)
def traceback_dialog(self, exc, val, tb):
# XXX This could actually just create a new Browser window...
import TbDialog
TbDialog.TracebackDialog(self.root, exc, val, tb)
def error_dialog(self, exc, msg, root=None):
# Display an error dialog.
# Return when the user clicks OK
# XXX This needn't be a modal dialog
import SafeDialog
if type(msg) in (ListType, TupleType):
s = ''
for item in msg:
s = s + ':\n' + str(item)
msg = s[2:]
else:
msg = str(msg)
SafeDialog.Dialog(root or self.root,
text=msg,
title="Error: " + str(exc),
bitmap='error',
default=0,
strings=('OK',),
)
dingbatimages = {'ldots': ('...', None), # math stuff
'sp': (' ', None),
'hairsp': ('\240', None),
'thinsp': ('\240', None),
'emdash': ('--', None),
'endash': ('-', None),
'mdash': ('--', None),
'ndash': ('-', None),
'ensp': (' ', None)
}
def clear_dingbat(self, entname):
if self.dingbatimages.has_key(entname):
del self.dingbatimages[entname]
def set_dingbat(self, entname, entity):
self.dingbatimages[entname] = entity
def load_dingbat(self, entname):
if self.dingbatimages.has_key(entname):
return self.dingbatimages[entname]
gifname = grailutil.which(entname + '.gif', self.iconpath)
if gifname:
img = PhotoImage(file=gifname, master=self.root)
self.dingbatimages[entname] = img
return img
self.dingbatimages[entname] = None
return None
