A micro-blogging tool with multiple interfaces.
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Mitter, a Maemo client for Twitter.
# Copyright (C) 2007, 2008 Julio Biason, Deepak Sarda
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import gtk
import gobject
gobject.threads_init()
import logging
import threading
import Queue
from mitterlib.ui.helpers.image_helpers import find_image
#from mitterlib.constants import gpl_3, version
#from mitterlib.ui.helpers.utils import str_len
#from mitterlib.ui.helpers.notify import Notify
#from mitterlib.ui.helpers import timesince
# Constants
_log = logging.getLogger('ui.pygtk')
# ----------------------------------------------------------------------
# Threading related objects.
# These classes are based on the code available at http://gist.github.com/51686
# (c) 2008, John Stowers <john.stowers@gmail.com>
# ----------------------------------------------------------------------
class _IdleObject(gobject.GObject):
"""
Override gobject.GObject to always emit signals in the main thread
by emmitting on an idle handler
"""
def __init__(self):
gobject.GObject.__init__(self)
def emit(self, *args):
gobject.idle_add(gobject.GObject.emit,self,*args)
class _WorkerThread(threading.Thread, _IdleObject):
"""
A single working thread.
"""
__gsignals__ = {
"completed": (
gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, [
gobject.TYPE_PYOBJECT]), # The list/NetworkData object
"exception": (
gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, [
gobject.TYPE_PYOBJECT]) # The exception
}
def __init__(self, queue):
threading.Thread.__init__(self)
_IdleObject.__init__(self)
self._queue = queue
def run(self):
while True:
_log.debug('Thread %d waiting for work', self.get_ident())
work = self._queue.get()
if work is None:
# End the thread
break
# call the function
_log.debug('Thread %s got work', self.get_ident())
(complete, exception, function, args, kwargs) = work
_log.debug('Calling %s', str(function))
try:
result = function(*args, **kwargs)
except Exception, exc: # Catch ALL exceptions
# XXX: Check if this catch all warnins too!
_log.debug('Exception %s', str(exc))
self.emit("exception", exc)
self.emit("completed", result)
# work complete
self._queue.task_done()
_log.debug('Thread %d ending', self.get_ident())
return
class _ThreadManager(object):
"""Manages the threads."""
def __init__(self, pool_size=2):
"""Start the thread pool. The number of threads in the pool is defined
by `pool_size`, defaults to 2."""
self._queue = Queue.Queue()
self._thread_pool = []
while pool_size > 0:
_log.debug('Starting thread %d', pool_size)
new_thread = _WorkerThread(self._queue)
new_thread.start()
self._thread_pool.append(new_thread)
pool_size -= 1
_log.debug('All threads started')
return
def add_work(self, complete_cb, exception_cb, func, *args, **kwargs):
"""Add a work to the thread list. `complete_cb` is the function to be
called with the result of the work. `exception_cb` is the function to
be called if there are any exceptions raised. Note that, once the
work is complete, one of those will be called, not both. `func` is the
function to be called in the secondary threads. `args` and `kwargs`
are parameters passed to the function."""
# wrap all the params in a nice tuple to be added to the queue.
work = (complete_cb, exception_cb, func, args, kwargs)
self._queue.put(work)
return
# ----------------------------------------------------------------------
# Mitter interface object
# ----------------------------------------------------------------------
class Interface(object):
"""Linux/GTK interface for Mitter."""
NAMESPACE = 'pygtk'
def show_about(self, widget):
"""Show the about dialog."""
about_window = gtk.AboutDialog()
about_window.set_name('Mitter')
about_window.set_version(version)
about_window.set_copyright('2007-2009 Mitter Contributors')
about_window.set_license(gpl_3)
about_window.set_website('http://code.google.com/p/mitter')
about_window.set_website_label('Mitter on GoogleCode')
about_window.set_authors([
'Main developers:',
'Julio Biason',
'Deepak Sarda',
'Gerald Kaszuba',
' ',
'And patches from:',
'Santiago Gala',
'Sugree Phatanapherom',
'Kristian Rietveld',
'"Wiennat"',
'Philip Reynolds',
'Greg McIntyre',
'"Alexander"'])
about_window.connect('close', self.close_dialog)
about_window.run()
about_window.hide()
# ------------------------------------------------------------
# Helper functions
# ------------------------------------------------------------
def _sort_by_time(self, model, iter1, iter2, data=None):
"""The sort function where we sort by the datetime.datetime object"""
d1 = model.get_value(iter1, Columns.DATETIME)
d2 = model.get_value(iter2, Columns.DATETIME)
# Why do we get called with None values?!
if not d1:
return 1
if not d2:
return -1
if d1 < d2:
return -1
elif d1 > d2:
return 1
return 0
# ------------------------------------------------------------
# Widget creation functions
# ------------------------------------------------------------
def _systray_setup(self):
if not (self._app_icon and self._app_icon_alert):
self._systray = None
return
self._systray = gtk.StatusIcon()
self._systray.set_from_file(self._app_icon)
self._systray.connect('activate', self.systray_cb)
self._systray.set_tooltip('Mitter: Click to toggle window visibility.')
self._systray.set_visible(True)
return
def _create_main_window(self):
"""Returns the object with the main window and the attached
widgets."""
main_window = gtk.Window(gtk.WINDOW_TOPLEVEL)
initial_width = int(self._options[self.NAMESPACE]['width'])
initial_height = int(self._options[self.NAMESPACE]['height'])
_log.debug('Initial size: %d x %d', initial_width, initial_height)
initial_x = int(self._options[self.NAMESPACE]['position_x'])
initial_y = int(self._options[self.NAMESPACE]['position_y'])
_log.debug('Initial position: %d x %d', initial_x, initial_y)
main_window.set_title('Mitter')
main_window.set_size_request(10, 10) # very small minimal size
main_window.resize(initial_width, initial_height)
main_window.move(initial_x, initial_y)
if self._app_icon:
main_window.set_icon_from_file(self._app_icon)
main_window.connect('destroy', self.quit_app)
main_window.connect('delete-event', self.quit_app)
grid = self._create_grid()
(menu, toolbar, accelerators) = self._create_menu_and_toolbar()
update_field = self._create_update_box()
statusbar = self._create_statusbar()
update_box = gtk.VPaned()
update_box.pack1(grid, resize=True, shrink=False)
update_box.pack2(update_field, resize=False, shrink=True)
box = gtk.VBox(False, 1)
box.pack_start(menu, False, True, 0)
box.pack_start(update_box, True, True, 0)
box.pack_start(statusbar, False, False, 0)
main_window.add(box)
main_window.add_accel_group(accelerators)
return main_window
def _create_grid(self):
"""Add the displaying grid."""
self.grid_store = gtk.ListStore(object)
# Trying to store the NetworkData object only
self.grid_store.set_sort_func(0, self._sort_by_time)
self.grid_store.set_sort_column_id(0, gtk.SORT_DESCENDING)
self.grid = gtk.TreeView(self.grid_store)
self.grid.set_property('headers-visible', False)
self.grid.set_rules_hint(True) # change color for each row
user_renderer = gtk.CellRendererPixbuf()
user_column = gtk.TreeViewColumn('User', user_renderer)
user_column.set_cell_data_func(user_renderer,
self._cell_renderer_user)
self.grid.append_column(user_column)
message_renderer = gtk.CellRendererText()
message_renderer.set_property('wrap-mode', gtk.WRAP_WORD)
message_renderer.set_property('wrap-width', 200)
message_renderer.set_property('width', 10)
message_column = gtk.TreeViewColumn('Message',
message_renderer)
message_column.set_cell_data_func(message_renderer,
self._cell_renderer_message)
self.grid.append_column(message_column)
self.grid.set_resize_mode(gtk.RESIZE_IMMEDIATE)
#self.grid.connect('cursor-changed', self.check_post)
#self.grid.connect('row-activated', self.open_post)
#self.grid.connect('button-press-event', self.click_post)
#self.grid.connect('popup-menu',
# lambda view: self.show_post_popup(view, None))
scrolled_window = gtk.ScrolledWindow()
scrolled_window.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
scrolled_window.add(self.grid)
return scrolled_window
def _create_menu_and_toolbar(self):
"""Create the main menu and the toolbar."""
# tasks (used by the menu and toolbar)
refresh_action = gtk.Action('Refresh', '_Refresh',
'Update the listing', gtk.STOCK_REFRESH)
#refresh_action.connect('activate', self.refresh)
quit_action = gtk.Action('Quit', '_Quit',
'Exit Mitter', gtk.STOCK_QUIT)
quit_action.connect('activate', self.quit_app)
settings_action = gtk.Action('Settings', '_Settings',
'Settings', gtk.STOCK_PREFERENCES)
#settings_action.connect('activate', self.show_settings)
update_action = gtk.Action('Update', '_Update', 'Update your status',
gtk.STOCK_ADD)
update_action.set_property('sensitive', False)
update_action.connect('activate', self._update_status)
delete_action = gtk.Action('Delete', '_Delete', 'Delete a post',
gtk.STOCK_DELETE)
delete_action.set_property('sensitive', False)
#delete_action.connect('activate', self.delete_tweet)
about_action = gtk.Action('About', '_About', 'About Mitter',
gtk.STOCK_ABOUT)
about_action.connect('activate', self.show_about)
#shrink_url_action = gtk.Action('ShrinkURL', 'Shrink _URL',
# 'Shrink selected URL', gtk.STOCK_EXECUTE)
#shrink_url_action.connect('activate', self.shrink_url)
#mute_action = gtk.ToggleAction('MuteNotify', '_Mute Notifications',
# 'Mutes notifications on new tweets', gtk.STOCK_MEDIA_PAUSE)
#mute_action.set_active(False)
post_action = gtk.Action('Posts', '_Posts', 'Post management', None)
file_action = gtk.Action('File', '_File', 'File', None)
edit_action = gtk.Action('Edit', '_Edit', 'Edit', None)
help_action = gtk.Action('Help', '_Help', 'Help', None)
# action group (will have all the actions, 'cause we are not actually
# grouping them, but Gtk requires them that way)
self.action_group = gtk.ActionGroup('MainMenu')
self.action_group.add_action_with_accel(refresh_action, 'F5')
# None = use the default accelerator, based on the STOCK used.
self.action_group.add_action_with_accel(quit_action, None)
self.action_group.add_action(settings_action)
self.action_group.add_action(delete_action)
self.action_group.add_action(post_action)
self.action_group.add_action(file_action)
self.action_group.add_action(edit_action)
self.action_group.add_action(help_action)
self.action_group.add_action(about_action)
#self.action_group.add_action_with_accel(shrink_url_action, '<Ctrl>u')
#self.action_group.add_action_with_accel(mute_action, '<Ctrl>m')
self.action_group.add_action_with_accel(update_action,
'<Ctrl>Return')
# definition of the UI
uimanager = gtk.UIManager()
uimanager.insert_action_group(self.action_group, 0)
ui = '''
<ui>
<toolbar name="MainToolbar">
<toolitem action="Refresh" />
<separator />
<toolitem action="Delete" />
<separator />
<toolitem action="Settings" />
<toolitem action="Quit" />
</toolbar>
<menubar name="MainMenu">
<menu action="File">
<menuitem action="Quit" />
</menu>
<menu action="Edit">
<menuitem action="Refresh" />
<menuitem action="Update" />
<menuitem action="Delete" />
<menuitem action="ShrinkURL" />
<menuitem action="MuteNotify" />
<separator />
<menuitem action="Settings" />
</menu>
<menu action="Help">
<menuitem action="About" />
</menu>
</menubar>
</ui>
'''
uimanager.add_ui_from_string(ui)
main_menu = uimanager.get_widget('/MainMenu')
main_toolbar = uimanager.get_widget('/MainToolbar')
return (main_menu, main_toolbar, uimanager.get_accel_group())
def _create_update_box(self):
"""Create the widgets related to the update box"""
self._update_text = gtk.TextView()
text_buffer = self._update_text.get_buffer()
text_buffer.connect('changed', self._count_chars)
update_button = gtk.Button(stock=gtk.STOCK_ADD)
update_button.connect('clicked', self._update_status)
update_box = gtk.HBox(False, 0)
update_box.pack_start(self._update_text, expand=True, fill=True,
padding=0)
update_box.pack_start(update_button, expand=False, fill=False,
padding=0)
info_box = gtk.HBox(False, 0)
self._char_count = gtk.Label()
self._char_count.set_text('(140)')
info_box.pack_start(gtk.Label('What are you doing?'))
info_box.pack_start(self._char_count)
update_area = gtk.VBox(True, 0)
update_area.pack_start(info_box)
update_area.pack_start(update_box)
return update_area
def _create_statusbar(self):
"""Create the statusbar."""
statusbar = gtk.Statusbar()
# TODO: Probaly set the context in the object.
return statusbar
# ------------------------------------------------------------
# Cell rendering functions
# ------------------------------------------------------------
def _cell_renderer_user(self, column, cell, store, position):
"""Callback for the user column. Used to created the pixbuf of the
userpic."""
data = store.get_value(position, 0)
pic = data.avatar
if not pic in self._user_pics:
cell.set_property('pixbuf', self._default_pixmap)
# just make sure we download this pic too.
self.queue_pic(pic)
else:
cell.set_property('pixbuf', self._user_pics[pic])
return
def _cell_renderer_message(self, column, cell, store, position):
"""Callback for the message column. We need this to adjust the markup
property of the cell, as setting it as text won't do any markup
processing."""
data = store.get_value(position, 0)
message = data.message
username = data.username
time = timesince.timesince(data.message_time)
# unescape escaped entities that pango is okay with
message = re.sub(r'&(?!(amp;|gt;|lt;|quot;|apos;))', r'&amp;', message)
# highlight URLs
message = url_re.sub(r'<span foreground="blue">\1</span>',
message)
# use a different highlight for the current user
message = re.sub(r'(@'+self.twitter.username+')',
r'<span foreground="#FF6633">\1</span>',
message)
markup = '<b>%s</b> <small>(%s)</small>:\n%s\n<small>%s</small>' % \
(data.name, username, message, time)
cell.set_property('markup', markup)
return
# ------------------------------------------------------------
# Widget callback functions
# ------------------------------------------------------------
def _count_chars(self, text_buffer):
"""Count the number of chars in the edit field and update the
label that shows the available space."""
start = text_buffer.get_start_iter()
end = text_buffer.get_end_iter()
text = text_buffer.get_text(start, end, include_hidden_chars=False)
self._char_count.set_text('(%d)' % (140 - len(text)))
return True
def _update_status(self):
"""Update your status."""
_log.debug('Updating status.')
status = self._update_text.get_text()
status = status.strip()
if not str_len(status):
return
self.update_text.set_sensitive(False)
self.statusbar.push(self.statusbar_context, 'Updating your status...')
def quit_app(self, widget=None, user_data=None):
"""Callback when the window is destroyed or the user selects
"Quit"."""
(x, y) = self._main_window.get_position()
_log.debug('Current position: %d x %d', x, y)
self._options[self.NAMESPACE]['position_x'] = x
self._options[self.NAMESPACE]['position_y'] = y
(width, height) = self._main_window.get_size()
_log.debug('Current window size: %d x %d', width, height)
self._options[self.NAMESPACE]['width'] = width
self._options[self.NAMESPACE]['height'] = height
gtk.main_quit()
return
# ------------------------------------------------------------
# Required functions for all interfaces
# ------------------------------------------------------------
def __init__(self, connection, options):
"""Class initialization."""
self._connection = connection
self._options = options
self._user_pics = {}
self._pic_queue = set()
# Load images
self._app_icon = find_image('mitter.png')
self._app_icon_alert = find_image('mitter-new.png')
unknown_pixbuf = find_image('unknown.png')
if unknown_pixbuf:
self._default_pixmap = gtk.gdk.pixbuf_new_from_file(
unknown_pixbuf)
else:
self._default_pixmap = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,
has_alpha=False, bits_per_sample=8, width=48, height=48)
self._main_window = self._create_main_window()
#self._systray_setup()
# self.create_settings_dialog()
# self.username_field.set_text(default_username)
# self.password_field.set_text(default_password)
# self.https_field.set_active(self.https)
# notification helper
# self.notify_broadcast = Notify('mitter').notify
# start auto refresh activity
# self._refresh_id = None
# self.set_auto_refresh()
# self.window.set_focus(self.update_text)
return
def __call__(self):
"""Call function; displays the interface. This method should appear on
every interface."""
self._main_window.show_all()
gtk.main()
@classmethod
def options(self, options):
"""Add the options for this interface."""
options.add_group(self.NAMESPACE, 'GTK+ Interface')
options.add_option('--refresh-interval',
group=self.NAMESPACE,
option='refresh_interval',
help='Refresh interval',
type='int',
metavar='MINUTES',
default=5,
conflict_group='interface')
# Most of the options for non-cmd-options are useless, but I'm keeping
# them as documentation.
options.add_option(
group=self.NAMESPACE,
option='width',
help='Window width',
type='int',
metavar='PIXELS',
default=450,
conflict_group='interface',
is_cmd_option=False)
options.add_option(
group=self.NAMESPACE,
option='height',
help='Window height',
type='int',
metavar='PIXELS',
default=300,
conflict_group='interface',
is_cmd_option=False)
options.add_option(
group=self.NAMESPACE,
option='position_x',
help='Window position on the X axis',
type='int',
metavar='PIXELS',
default=5,
conflict_group='interface',
is_cmd_option=False)
options.add_option(
group=self.NAMESPACE,
option='position_y',
help='Window position on the Y axis',
type='int',
metavar='PIXELS',
default=5,
conflict_group='interface',
is_cmd_option=False)
options.add_option(
group=self.NAMESPACE,
option='max_status_display',
help='Maximum number of elements to keep internally',
type='int',
metavar='MESSAGES',
default=60,
conflict_group='interface',
is_cmd_option=False) # TODO: Should it be config only?