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# Copyright (C) 2017 Dustin Spicuzza
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from gi.repository import GLib
from gi.repository import Gtk
from xl import event, providers
from xl.nls import gettext as _
from xlgui.guiutil import GtkTemplate
from xlgui.widgets import menu
import threading
class DeveloperPlugin:
"""
Shows useful information for Exaile developers
"""
def enable(self, exaile):
self.lock = threading.RLock()
self.exaile = exaile
self.window = None
self.menu = None
# Event data storage
self.events = {'__all': 0}
self.capture_events = True
# subscribe for all events
event.add_callback(self.on_events)
def disable(self, exaile):
self.teardown(exaile)
def teardown(self, exaile):
event.remove_callback(self.on_events)
if self.window:
self.window.destroy()
if self.menu:
providers.unregister('menubar-tools-menu', self.menu)
def on_gui_loaded(self):
# add a thing to the view menu
self.menu = menu.simple_menu_item(
'developer', '', _('Developer Tools'), callback=self.on_view_menu
)
providers.register('menubar-tools-menu', self.menu)
def on_view_menu(self, widget, name, parent, context):
if self.window:
self.window.present()
else:
self.window = DeveloperWindow(self.exaile.gui.main.window, self)
def _delete(w, e):
self.window = None
self.window.connect('delete-event', _delete)
self.window.show_all()
#
# Capture callback stuff
#
def clear_events(self):
with self.lock:
self.events.clear()
self.events['__all'] = 0
def pause_events(self, pause):
with self.lock:
self.capture_events = pause
def on_events(self, etype, *args):
with self.lock:
if not self.capture_events:
return
self.events['__all'] += 1
try:
self.events[etype] += 1
except KeyError:
self.events[etype] = 1
def get_event_data(self, last_count):
with self.lock:
all_count = self.events['__all']
if all_count != last_count:
return self.events.copy(), all_count
plugin_class = DeveloperPlugin
@GtkTemplate('developer_window.ui', relto=__file__)
class DeveloperWindow(Gtk.Window):
__gtype_name__ = 'DeveloperWindow'
(
event_filter_entry,
event_model_filter,
event_tree,
event_store,
) = GtkTemplate.Child.widgets(4)
def __init__(self, parent, plugin):
Gtk.Window.__init__(self)
self.init_template()
if parent:
self.set_transient_for(parent)
self.events_count = None
self.plugin = plugin
self.event_filter_text = ''
# key: name, value: iter
self.event_model_idx = {}
self.event_model_filter.set_visible_func(self.on_event_filter_row)
self.event_tree.set_search_entry(self.event_filter_entry)
self.event_tree.connect(
'start-interactive-search', lambda *a: self.event_filter_entry.grab_focus()
)
self.event_timeout_id = GLib.timeout_add(250, self.on_event_update)
@GtkTemplate.Callback
def on_clear_events(self, widget):
self.plugin.clear_events()
self.events_count = None
self.event_model_idx.clear()
self.event_store.clear()
@GtkTemplate.Callback
def on_delete(self, widget, event):
GLib.source_remove(self.event_timeout_id)
def on_event_filter_row(self, model, titer, unused):
row = model.get(titer, 0)
if row:
return self.event_filter_text in row[0]
@GtkTemplate.Callback
def on_event_pause_toggle(self, widget):
self.plugin.pause_events(widget.get_active())
@GtkTemplate.Callback
def on_event_filter_entry_changed(self, widget):
self.event_filter_text = widget.get_text()
self.event_model_filter.refilter()
def on_event_update(self):
'''Periodically updates the displayed list of events'''
data = self.plugin.get_event_data(self.events_count)
if data:
events, self.events_count = data
for name, count in events.items():
titer = self.event_model_idx.get(name)
if titer:
self.event_store[titer][1] = count
else:
titer = self.event_store.append([name, count])
self.event_model_idx[name] = titer
return True
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