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#!/usr/bin/env python
# vim: noet:ts=4:sw=4
from gi.repository import Unity
from gi.repository import GLib, Gio, GObject
import os, sys
BUS_NAME = 'net.launchpad.lens.testpreviews'
BUS_PATH = '/net/launchpad/lens/testpreviews'
SCOPE_BUS_PATH = '/net/launchpad/lens/scope/testpreviews'
class Daemon:
def __init__(self):
# this variable keeps the state of a sample/fake application
self._app_installed = False
self._lens = Unity.Lens.new(BUS_PATH, 'testpreviews')
self._lens.props.search_hint = "Sample lens for testing previews"
self._lens.props.visible = True
# Is the scope searchable from the home dash?
self._lens.props.search_in_global = False
icon = Gio.ThemedIcon.new("...")
self._lens.props.categories = [ Unity.Category.new("HORIZONTAL_TILE", icon, Unity.CategoryRenderer.HORIZONTAL_TILE) ]
self._lens.props.filters = []
self._scope = Unity.Scope.new(SCOPE_BUS_PATH)
self._scope.props.search_in_global = False
self._scope.export()
self._lens.add_local_scope(self._scope)
self._lens.export()
self._scope.connect('filters-changed', self.search_changed)
self._scope.connect('search-changed', self.search_changed)
self._scope.connect('activate-uri', self.activate_uri)
self._scope.connect('preview-uri', self.preview_uri)
def activate_uri(self, scope, uri):
return Unity.ActivationResponse(handled=Unity.HandledType.HIDE_DASH, goto_uri='')
# This method gets called when Dash requests a preview
def preview_uri(self, scope, uri):
if uri.endswith("/generic"):
return self.create_generic_preview()
if uri.endswith("/application"):
if not self._app_installed:
return self.create_app_preview()
else:
return self.create_app_installed_preview()
if uri.endswith("/music"):
return self.create_music_preview()
if uri.endswith("/movie"):
return self.create_movie_preview()
# fallback
return self.create_generic_preview()
# Handler for 'Action 1' of GenericPreview
def generic_action1_activated(self, action, uri):
return Unity.ActivationResponse(handled=Unity.HandledType.SHOW_PREVIEW, goto_uri='')
# Handler for 'Action 2' of GenericPreview
def generic_action2_activated(self, a, uri):
return Unity.ActivationResponse(handled=Unity.HandledType.HIDE_DASH, goto_uri='')
# Handler for 'Install' action of ApplicationPreview
def app_install_activated(self, action, uri):
self._app_installed = True
return Unity.ActivationResponse(handled=Unity.HandledType.SHOW_PREVIEW, goto_uri='')
# Handler for 'Remove' action of ApplicationPreview
def app_remove_activated(self, action, uri):
self._app_installed = False
return Unity.ActivationResponse(handled=Unity.HandledType.SHOW_PREVIEW, goto_uri='')
# Handler for 'Show reviews' action of ApplicationPreview
def app_reviews_activated(self, action, uri):
return Unity.ActivationResponse(handled=Unity.HandledType.HIDE_DASH, goto_uri='')
# Handler for 'Buy' action of MusicPreview
def music_buy_activated(self, action, uri):
return Unity.ActivationResponse(handled=Unity.HandledType.HIDE_DASH, goto_uri='')
# Handler for 'Buy' action of MoviePreview
def movie_buy_activated(self, action, uri):
return Unity.ActivationResponse(handled=Unity.HandledType.HIDE_DASH, goto_uri='')
def music_preview_play(self, preview, uri):
preview.set_property("current-track-state", Unity.MusicPreviewTrackState.PLAYING)
preview.set_property("current-track-uri", uri)
def music_preview_pause(self, preview, uri):
preview.set_property("current-track-state", Unity.MusicPreviewTrackState.PAUSED)
preview.set_property("current-track-uri", uri)
# Create sample GenericPreview object
def create_generic_preview(self):
thumbnail = Gio.ThemedIcon.new("accessories-text-editor")
icon_hint = Gio.ThemedIcon.new("text")
preview = Unity.GenericPreview.new("A title", "Description", thumbnail)
# Add actions; actions are available as buttons on the Dash
action1 = Unity.PreviewAction.new("action1", "Action 1", None)
action1.connect('activated', self.generic_action1_activated)
preview.add_action(action1)
action2 = Unity.PreviewAction.new("action2", "Action 2", None)
action2.connect('activated', self.generic_action2_activated)
preview.add_action(action2)
# Add some hints; hints provide some additional metadata that gets displayed along with preview
preview.add_info(Unity.InfoHint.with_variant("hint1", "This is a hint", icon_hint, GLib.Variant('i', 1)));
return preview
# Create sample ApplicationPreview object for "uninstalled" application
def create_app_preview(self):
thumbnail = Gio.ThemedIcon.new("accessories-text-editor")
screenshot = Gio.ThemedIcon.new("internet")
icon_hint = Gio.ThemedIcon.new("text")
preview = Unity.ApplicationPreview.new("An application", "It does cool stuff", "Description", thumbnail, screenshot)
action_app_install = Unity.PreviewAction.new("install", "Install", None)
action_app_install.connect('activated', self.app_install_activated)
preview.add_action(action_app_install)
action_app_show_reviews = Unity.PreviewAction.new("reviews", "Show reviews", None)
action_app_show_reviews.connect('activated', self.app_reviews_activated)
preview.add_action(action_app_show_reviews)
preview.add_info(Unity.InfoHint.with_variant("hint1", "This is a hint", icon_hint, GLib.Variant('i', 1)));
return preview
# Create sample ApplicationPreview object for "installed" application
def create_app_installed_preview(self):
thumbnail = Gio.ThemedIcon.new("accessories-text-editor")
screenshot = Gio.ThemedIcon.new("internet")
icon_hint = Gio.ThemedIcon.new("text")
preview = Unity.ApplicationPreview.new("An application", "It does cool stuff", "Description", thumbnail, screenshot)
action_app_remove = Unity.PreviewAction.new("action1", "Remove", None)
action_app_remove.connect('activated', self.app_remove_activated)
preview.add_action(action_app_remove)
preview.add_info(Unity.InfoHint.with_variant("hint1", "This is a hint", icon_hint, GLib.Variant('i', 1)));
return preview
# Create sample MusicPreview object
def create_music_preview(self):
icon_hint = Gio.ThemedIcon.new("text")
thumbnail = Gio.ThemedIcon.new("music")
preview = Unity.MusicPreview.new("Metallica", "Ride The Lightning", thumbnail)
preview.connect('play', self.music_preview_play)
preview.connect('pause', self.music_preview_pause)
preview.add_track(Unity.TrackMetadata.full("track1", 1, "For Whom The Bell Tolls", "Metallica", "Ride The Lightning", 600))
preview.add_track(Unity.TrackMetadata.full("track2", 2, "Fade To Black", "Metallica", "Ride The Lightning", 660))
preview.add_track(Unity.TrackMetadata.full("track3", 3, "Creeping Death", "Metallica", "Ride The Lightning", 510))
action_music_buy = Unity.PreviewAction.new("music_buy", "Buy", None)
action_music_buy.connect('activated', self.music_buy_activated)
preview.add_action(action_music_buy)
preview.add_info(Unity.InfoHint.with_variant("hint1", "This is a hint", icon_hint, GLib.Variant('i', 1)));
return preview
# Create sample MoviePreview object
def create_movie_preview(self):
icon_hint = Gio.ThemedIcon.new("text")
thumbnail = Gio.ThemedIcon.new("video")
preview = Unity.MoviePreview.new("Blade Runner", "Director's cut", "by Ridley Scott", thumbnail)
action_movie_buy = Unity.PreviewAction.new("music_buy", "Buy", None)
action_movie_buy.connect('activated', self.movie_buy_activated)
preview.add_action(action_movie_buy)
preview.add_info(Unity.InfoHint.with_variant("hint1", "This is a hint", icon_hint, GLib.Variant('i', 1)));
return preview
# On each search change, this method is called
def search_changed(self, scope, search, search_type, cancellable):
self.update_model(search.props.results_model)
search.emit('finished')
def update_model(self, model):
model.clear()
uri = 'scheme://local/'
# Hardcode some sample data
model.append(uri + "generic", 'icon', 0, 'scheme', 'item 1', 'Provides GenericPreview', uri)
model.append(uri + "application", 'icon', 0, 'scheme', 'item 2', 'Provides ApplicationPreview', uri)
model.append(uri + "music", 'icon', 0, 'scheme', 'item 3', 'Provides MusicPreview', uri)
model.append(uri + "movie", 'icon', 0, 'scheme', 'item 4', 'Provides MoviePreview', uri)
if __name__ == '__main__':
session_bus_connection = Gio.bus_get_sync(Gio.BusType.SESSION, None)
session_bus = Gio.DBusProxy.new_sync(session_bus_connection, 0, None, 'org.freedesktop.DBus', '/org/freedesktop/dbus', 'org.freedesktop.DBus', None,)
result = session_bus.RequestName('(su)', BUS_NAME, 0x4)
if result != 1:
print >> sys.stderr, "Failed to own name %s. Bailing out." % BUS_NAME
raise SystemExit(1)
daemon = Daemon()
GObject.MainLoop().run()
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