class AppTreeView(Gtk.TreeView):
"""Treeview based view component that takes a AppStore and displays it"""
VARIANT_INFO = 0
VARIANT_REMOVE = 1
VARIANT_INSTALL = 2
VARIANT_PURCHASE = 3
ACTION_BTNS = (VARIANT_REMOVE, VARIANT_INSTALL, VARIANT_PURCHASE)
def __init__(self, app_view, db, icons, show_ratings, store=None):
Gtk.TreeView.__init__(self)
self._logger = logging.getLogger("softwarecenter.view.appview")
self.app_view = app_view
self.db = db
self.pressed = False
self.focal_btn = None
self._action_block_list = []
self._needs_collapse = []
self.expanded_path = None
self.selected_row_renderer = None
# pixbuf for the icon that is displayed in the selected row
self.selected_row_icon = None
#~ # if this hacked mode is available everything will be fast
#~ # and we can set fixed_height mode and still have growing rows
#~ # (see upstream gnome #607447)
try:
self.set_property("ubuntu-almost-fixed-height-mode", True)
self.set_fixed_height_mode(True)
except:
self._logger.warn(
"ubuntu-almost-fixed-height-mode extension not available")
self.set_headers_visible(False)
# our custom renderer
self._renderer = CellRendererAppView(icons,
self.create_pango_layout(''),
show_ratings,
Icons.INSTALLED_OVERLAY)
self._renderer.set_pixbuf_width(32)
self._renderer.set_button_spacing(em(0.3))
# create buttons and set initial strings
info = CellButtonRenderer(self, name=CellButtonIDs.INFO)
info.set_markup_variants({self.VARIANT_INFO: _('More Info')})
action = CellButtonRenderer(self, name=CellButtonIDs.ACTION)
action.set_markup_variants({
self.VARIANT_INSTALL: _('Install'),
self.VARIANT_REMOVE: _('Remove'),
self.VARIANT_PURCHASE: _(u'Buy\u2026')
})
self._renderer.button_pack_start(info)
self._renderer.button_pack_end(action)
self._column = Gtk.TreeViewColumn(
"Applications",
self._renderer,
application=AppGenericStore.COL_ROW_DATA)
self._column.set_cell_data_func(self._renderer,
self._cell_data_func_cb)
self._column.set_fixed_width(200)
self._column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
self.append_column(self._column)
# network status watcher
watcher = get_network_watcher()
watcher.connect("changed", self._on_net_state_changed, self._renderer)
# custom cursor
self._cursor_hand = Gdk.Cursor.new(Gdk.CursorType.HAND2)
self.connect("style-updated", self._on_style_updated, self._renderer)
# button and motion are "special"
self.connect("button-press-event", self._on_button_press_event,
self._renderer)
self.connect("button-release-event", self._on_button_release_event,
self._renderer)
self.connect("key-press-event", self._on_key_press_event,
self._renderer)
self.connect("key-release-event", self._on_key_release_event,
self._renderer)
self.connect("motion-notify-event", self._on_motion, self._renderer)
self.connect("cursor-changed", self._on_cursor_changed, self._renderer)
# our own "activate" handler
self.connect("row-activated", self._on_row_activated, self._renderer)
self.backend = get_install_backend()
self._transactions_connected = False
self.connect('realize', self._on_realize, self._renderer)
@property
def appmodel(self):
model = self.get_model()
# FIXME: would be nice if that would be less ugly,
# because we use a treefilter we need to get the "real"
# model first
if isinstance(model, Gtk.TreeModelFilter):
return model.get_model()
return model
def clear_model(self):
vadjustment = self.get_scrolled_window_vadjustment()
if vadjustment:
vadjustment.set_value(0)
self.expanded_path = None
self._needs_collapse = []
if self.appmodel:
# before clearing the model, disconnect it from the view. this
# avoids that the model gets a "cursor_changed" signal for each
# removed row and consequently that _update_selected_row is called
# for rows that are not really selected (LP: #969050)
model = self.get_model()
self.set_model(None)
model.clear()
self.set_model(model)
def set_model(self, model):
# the set_cell_data_func() calls here are a workaround for bug
# LP: #986186 - once that is fixed upstream we can revert this
# and remove the entire "set_model" again
self._column.set_cell_data_func(self._renderer, None)
Gtk.TreeView.set_model(self, model)
self._column.set_cell_data_func(self._renderer,
self._cell_data_func_cb)
def expand_path(self, path):
if path is not None and not isinstance(path, Gtk.TreePath):
raise TypeError("Expects Gtk.TreePath or None, got %s" %
type(path))
model = self.get_model()
old = self.expanded_path
self.expanded_path = path
if old is not None:
start, end = self.get_visible_range() or (None, None)
if ((start and start.compare(old) != -1)
or (end and end.compare(old) != 1)):
self._needs_collapse.append(old)
else:
try: # try... a lazy solution to Bug #846204
model.row_changed(old, model.get_iter(old))
except:
LOG.exception("apptreeview.expand_path: Supplied 'old' "
"path is an invalid tree path: '%s'" % old)
if path == None:
return
model.row_changed(path, model.get_iter(path))
def get_scrolled_window_vadjustment(self):
ancestor = self.get_ancestor(Gtk.ScrolledWindow)
if ancestor:
return ancestor.get_vadjustment()
def get_rowref(self, model, path):
if path is not None:
return model[path][AppGenericStore.COL_ROW_DATA]
def rowref_is_category(self, rowref):
return isinstance(rowref, CategoryRowReference)
def reset_action_button(self):
""" Set the current row's action button sensitivity to the
specified value
"""
if self.selected_row_renderer:
action_btn = self.selected_row_renderer.get_button_by_name(
CellButtonIDs.ACTION)
if action_btn:
action_btn.set_sensitive(True)
pkgname = self.db.get_pkgname(self.selected_doc)
self._check_remove_pkg_from_blocklist(pkgname)
def _on_realize(self, widget, tr):
# connect to backend events once self is realized so handlers
# have access to the TreeView's initialised Gdk.Window
if self._transactions_connected:
return
self.backend.connect("transaction-started",
self._on_transaction_started, tr)
self.backend.connect("transaction-finished",
self._on_transaction_finished, tr)
self.backend.connect("transaction-stopped",
self._on_transaction_stopped, tr)
self._transactions_connected = True
def _calc_row_heights(self, tr):
ypad = StockEms.SMALL
tr.set_property('xpad', StockEms.MEDIUM)
tr.set_property('ypad', ypad)
for btn in tr.get_buttons():
# recalc button geometry and cache
btn.configure_geometry(self.create_pango_layout(""))
btn_h = btn.height
tr.normal_height = max(32 + 2 * ypad, em(2.5) + ypad)
tr.selected_height = tr.normal_height + btn_h + StockEms.MEDIUM
def _on_style_updated(self, widget, tr):
self._calc_row_heights(tr)
def _on_motion(self, tree, event, tr):
window = self.get_window()
x, y = int(event.x), int(event.y)
if not self._xy_is_over_focal_row(x, y):
window.set_cursor(None)
return
path = tree.get_path_at_pos(x, y)
if not path:
window.set_cursor(None)
return
rowref = self.get_rowref(tree.get_model(), path[0])
if not rowref:
return
if self.rowref_is_category(rowref):
window.set_cursor(None)
return
model = tree.get_model()
app = model[path[0]][AppGenericStore.COL_ROW_DATA]
if (not network_state_is_connected()
and not self.appmodel.is_installed(app)):
for btn_id in self.ACTION_BTNS:
btn_id = tr.get_button_by_name(CellButtonIDs.ACTION)
btn_id.set_sensitive(False)
use_hand = False
for btn in tr.get_buttons():
if btn.state == Gtk.StateFlags.INSENSITIVE:
continue
if btn.point_in(x, y):
use_hand = True
if self.focal_btn is btn:
btn.set_state(Gtk.StateFlags.ACTIVE)
elif not self.pressed:
btn.set_state(Gtk.StateFlags.PRELIGHT)
else:
if btn.state != Gtk.StateFlags.NORMAL:
btn.set_state(Gtk.StateFlags.NORMAL)
if use_hand:
window.set_cursor(self._cursor_hand)
else:
window.set_cursor(None)
def _on_cursor_changed(self, view, tr):
model = view.get_model()
sel = view.get_selection()
path = view.get_cursor()[0]
rowref = self.get_rowref(model, path)
if not rowref:
return
if self.has_focus():
self.grab_focus()
if self.rowref_is_category(rowref):
self.expand_path(None)
return
sel.select_path(path)
self._update_selected_row(view, tr, path)
def _update_selected_row(self, view, tr, path=None):
# keep track of the currently selected row renderer and associated
# doc for use when updating the widgets and for use with the Unity
# integration feature
self.selected_row_renderer = tr
self.selected_doc = tr.application
sel = view.get_selection()
if not sel:
return False
model, rows = sel.get_selected_rows()
if not rows:
return False
row = rows[0]
if self.rowref_is_category(row):
return False
# update active app, use row-ref as argument
self.expand_path(row)
app = model[row][AppGenericStore.COL_ROW_DATA]
# make sure this is not a category (LP: #848085)
if self.rowref_is_category(app):
return False
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
#if not action_btn: return False
if self.appmodel.is_installed(app):
action_btn.set_variant(self.VARIANT_REMOVE)
action_btn.set_sensitive(True)
action_btn.show()
elif self.appmodel.is_available(app):
if self.appmodel.is_purchasable(app):
action_btn.set_variant(self.VARIANT_PURCHASE)
else:
action_btn.set_variant(self.VARIANT_INSTALL)
action_btn.set_sensitive(True)
action_btn.show()
if not network_state_is_connected():
action_btn.set_sensitive(False)
self.app_view.emit("application-selected",
self.appmodel.get_application(app))
return
else:
action_btn.set_sensitive(False)
action_btn.hide()
self.app_view.emit("application-selected",
self.appmodel.get_application(app))
return
if self.appmodel.get_transaction_progress(app) > 0:
action_btn.set_sensitive(False)
elif self.pressed and self.focal_btn == action_btn:
action_btn.set_state(Gtk.StateFlags.ACTIVE)
else:
action_btn.set_state(Gtk.StateFlags.NORMAL)
self.app_view.emit("application-selected",
self.appmodel.get_application(app))
return False
def _on_row_activated(self, view, path, column, tr):
rowref = self.get_rowref(view.get_model(), path)
if not rowref:
return
elif self.rowref_is_category(rowref):
return
x, y = self.get_pointer()
for btn in tr.get_buttons():
if btn.point_in(x, y):
return
app = self.appmodel.get_application(rowref)
if app:
self.app_view.emit("application-activated", app)
def _on_button_event_get_path(self, view, event, allow_categories=False):
if event.button != 1:
return False
res = view.get_path_at_pos(int(event.x), int(event.y))
if not res:
return False
# check the path is valid and is not a category row
path = res[0]
is_cat = self.rowref_is_category(
self.get_rowref(view.get_model(), path))
if path is None:
return False
if is_cat:
if allow_categories:
return path
else:
return False
# only act when the selection is already there
selection = view.get_selection()
if not selection.path_is_selected(path):
return False
return path
def _on_button_press_event(self, view, event, tr):
path = self._on_button_event_get_path(view,
event,
allow_categories=False)
if not path:
path = self._on_button_event_get_path(view,
event,
allow_categories=True)
if path:
if view.row_expanded(path):
view.collapse_row(path)
else:
view.expand_row(path, True)
return True # swallow event to avoid double action when
# clicking on the expander arrow itself
return
self.pressed = True
x, y = int(event.x), int(event.y)
for btn in tr.get_buttons():
if (btn.point_in(x, y)
and (btn.state != Gtk.StateFlags.INSENSITIVE)):
self.focal_btn = btn
btn.set_state(Gtk.StateFlags.ACTIVE)
view.queue_draw()
return
self.focal_btn = None
def _on_button_release_event(self, view, event, tr):
path = self._on_button_event_get_path(view, event)
if not path:
return
self.pressed = False
x, y = int(event.x), int(event.y)
for btn in tr.get_buttons():
if (btn.point_in(x, y)
and (btn.state != Gtk.StateFlags.INSENSITIVE)):
btn.set_state(Gtk.StateFlags.NORMAL)
self.get_window().set_cursor(self._cursor_hand)
if self.focal_btn is not btn:
break
self._init_activated(btn, view.get_model(), path)
view.queue_draw()
break
self.focal_btn = None
def _on_key_press_event(self, widget, event, tr):
kv = event.keyval
#print kv
r = False
if kv == Gdk.KEY_Right: # right-key
btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if btn is None:
return # Bug #846779
if btn.state != Gtk.StateFlags.INSENSITIVE:
btn.has_focus = True
btn = tr.get_button_by_name(CellButtonIDs.INFO)
btn.has_focus = False
elif kv == Gdk.KEY_Left: # left-key
btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if btn is None:
return # Bug #846779
btn.has_focus = False
btn = tr.get_button_by_name(CellButtonIDs.INFO)
btn.has_focus = True
elif kv == Gdk.KEY_space: # spacebar
for btn in tr.get_buttons():
if (btn is not None and btn.has_focus
and btn.state != Gtk.StateFlags.INSENSITIVE):
btn.set_state(Gtk.StateFlags.ACTIVE)
sel = self.get_selection()
model, it = sel.get_selected()
path = model.get_path(it)
if path:
#self._init_activated(btn, self.get_model(), path)
r = True
break
self.queue_draw()
return r
def _on_key_release_event(self, widget, event, tr):
kv = event.keyval
r = False
if kv == 32: # spacebar
for btn in tr.get_buttons():
if btn.has_focus and btn.state != Gtk.StateFlags.INSENSITIVE:
btn.set_state(Gtk.StateFlags.NORMAL)
sel = self.get_selection()
model, it = sel.get_selected()
path = model.get_path(it)
if path:
self._init_activated(btn, model, path)
btn.has_focus = False
r = True
break
self.queue_draw()
return r
def _init_activated(self, btn, model, path):
app = model[path][AppGenericStore.COL_ROW_DATA]
s = Gtk.Settings.get_default()
GObject.timeout_add(s.get_property("gtk-timeout-initial"),
self._app_activated_cb, btn, btn.name, app, path)
def _cell_data_func_cb(self, col, cell, model, it, user_data):
path = model.get_path(it)
# this will pre-load data *only* on a AppListStore, it has
# no effect with a AppTreeStore
if model[path][0] is None:
indices = path.get_indices()
model.load_range(indices, 5)
if path in self._needs_collapse:
# collapse rows that were outside the visible range and
# thus not immediately collapsed when expand_path was called
cell.set_property('isactive', False)
i = self._needs_collapse.index(path)
del self._needs_collapse[i]
model.row_changed(path, it)
return
# update active property
cell.set_property('isactive', path == self.expanded_path)
# update "text" property for a11y
raw = model[path][AppGenericStore.COL_ROW_DATA]
if self.rowref_is_category(raw):
text = raw.display_name
elif raw:
text = self.db.get_pkgname(raw)
else:
# this can happen for empty/not-yet-loaded row, LP: #981992
text = ""
cell.set_property('text', text)
def _app_activated_cb(self, btn, btn_id, app, path):
if self.rowref_is_category(app):
return
model = self.appmodel
# don't continue if we don't have a valid model (LP: #969907)
if not model:
return
pkgname = model.get_pkgname(app)
if btn_id == CellButtonIDs.INFO:
self.app_view.emit("application-activated",
model.get_application(app))
elif btn_id == CellButtonIDs.ACTION:
btn.set_sensitive(False)
model.row_changed(path, model.get_iter(path))
app_manager = get_appmanager()
# be sure we dont request an action for a pkg with
# pre-existing actions
if pkgname in self._action_block_list:
logging.debug("Action already in progress for package:"
" '%s'" % pkgname)
return False
self._action_block_list.append(pkgname)
if model.is_installed(app):
action = AppActions.REMOVE
elif model.is_purchasable(app):
app_manager.buy_app(model.get_application(app))
model.notify_action_request(app, path)
return
else:
action = AppActions.INSTALL
model.notify_action_request(app, path)
app_manager.request_action(model.get_application(app), [], [],
action)
return False
def _set_cursor(self, btn, cursor):
# make sure we have a window instance (LP: #617004)
window = self.get_window()
if isinstance(window, Gdk.Window):
x, y = self.get_pointer()
if btn.point_in(x, y):
window.set_cursor(cursor)
def _on_transaction_started(self, backend, pkgname, appname, trans_id,
trans_type, tr):
"""callback when an application install/remove transaction has
started
"""
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if action_btn:
action_btn.set_sensitive(False)
self._set_cursor(action_btn, None)
def _on_transaction_finished(self, backend, result, tr):
"""callback when an application install/remove transaction has
finished
"""
# need to send a cursor-changed so the row button is properly updated
self.emit("cursor-changed")
# remove pkg from the block list
self._check_remove_pkg_from_blocklist(result.pkgname)
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if action_btn:
action_btn.set_sensitive(True)
self._set_cursor(action_btn, self._cursor_hand)
def _on_transaction_stopped(self, backend, result, tr):
"""callback when an application install/remove transaction has
stopped
"""
# remove pkg from the block list
self._check_remove_pkg_from_blocklist(result.pkgname)
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if action_btn:
# this should be a function that decides action button state label
if action_btn.current_variant == self.VARIANT_INSTALL:
action_btn.set_markup(self.VARIANT_REMOVE)
action_btn.set_sensitive(True)
self._set_cursor(action_btn, self._cursor_hand)
def _on_net_state_changed(self, watcher, state, tr):
self._update_selected_row(self, tr)
# queue a draw just to be sure the view is looking right
self.queue_draw()
def _check_remove_pkg_from_blocklist(self, pkgname):
if pkgname in self._action_block_list:
i = self._action_block_list.index(pkgname)
del self._action_block_list[i]
def _xy_is_over_focal_row(self, x, y):
res = self.get_path_at_pos(x, y)
#cur = self.get_cursor()
if not res:
return False
return self.get_path_at_pos(x, y)[0] == self.get_cursor()[0]
def __init__(self, app_view, db, icons, show_ratings, store=None):
Gtk.TreeView.__init__(self)
self._logger = logging.getLogger("softwarecenter.view.appview")
self.app_view = app_view
self.db = db
self.pressed = False
self.focal_btn = None
self._action_block_list = []
self._needs_collapse = []
self.expanded_path = None
#~ # if this hacked mode is available everything will be fast
#~ # and we can set fixed_height mode and still have growing rows
#~ # (see upstream gnome #607447)
try:
self.set_property("ubuntu-almost-fixed-height-mode", True)
self.set_fixed_height_mode(True)
except:
self._logger.warn(
"ubuntu-almost-fixed-height-mode extension not available")
self.set_headers_visible(False)
# a11y: this is a cell renderer that only displays a icon, but still
# has a markup property for orca and friends
# we use it so that orca and other a11y tools get proper text to read
# it needs to be the first one, because that is what the tools look
# at by default
tr = CellRendererAppView(icons, self.create_pango_layout(''),
show_ratings, Icons.INSTALLED_OVERLAY)
tr.set_pixbuf_width(32)
tr.set_button_spacing(em(0.3))
# create buttons and set initial strings
info = CellButtonRenderer(self, name=CellButtonIDs.INFO)
info.set_markup_variants({self.VARIANT_INFO: _('More Info')})
action = CellButtonRenderer(self, name=CellButtonIDs.ACTION)
action.set_markup_variants({
self.VARIANT_INSTALL: _('Install'),
self.VARIANT_REMOVE: _('Remove'),
self.VARIANT_PURCHASE: _(u'Buy\u2026')
})
tr.button_pack_start(info)
tr.button_pack_end(action)
column = Gtk.TreeViewColumn("Applications",
tr,
application=AppGenericStore.COL_ROW_DATA)
column.set_cell_data_func(tr, self._cell_data_func_cb)
column.set_fixed_width(200)
column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
self.append_column(column)
# network status watcher
watcher = get_network_watcher()
watcher.connect("changed", self._on_net_state_changed, tr)
# custom cursor
self._cursor_hand = Gdk.Cursor.new(Gdk.CursorType.HAND2)
self.connect("style-updated", self._on_style_updated, tr)
# button and motion are "special"
self.connect("button-press-event", self._on_button_press_event, tr)
self.connect("button-release-event", self._on_button_release_event, tr)
self.connect("key-press-event", self._on_key_press_event, tr)
self.connect("key-release-event", self._on_key_release_event, tr)
self.connect("motion-notify-event", self._on_motion, tr)
self.connect("cursor-changed", self._on_cursor_changed, tr)
# our own "activate" handler
self.connect("row-activated", self._on_row_activated, tr)
self.backend = get_install_backend()
self._transactions_connected = False
self.connect('realize', self._on_realize, tr)
def __init__(self, app_view, db, icons, show_ratings, store=None):
Gtk.TreeView.__init__(self)
self._logger = logging.getLogger("softwarecenter.view.appview")
self.app_view = app_view
self.db = db
self.pressed = False
self.focal_btn = None
self._action_block_list = []
self._needs_collapse = []
self.expanded_path = None
#~ # if this hacked mode is available everything will be fast
#~ # and we can set fixed_height mode and still have growing rows
#~ # (see upstream gnome #607447)
try:
self.set_property("ubuntu-almost-fixed-height-mode", True)
self.set_fixed_height_mode(True)
except:
self._logger.warn("ubuntu-almost-fixed-height-mode extension not available")
self.set_headers_visible(False)
# a11y: this is a cell renderer that only displays a icon, but still
# has a markup property for orca and friends
# we use it so that orca and other a11y tools get proper text to read
# it needs to be the first one, because that is what the tools look
# at by default
tr = CellRendererAppView(icons,
self.create_pango_layout(''),
show_ratings,
Icons.INSTALLED_OVERLAY)
tr.set_pixbuf_width(32)
tr.set_button_spacing(em(0.3))
# create buttons and set initial strings
info = CellButtonRenderer(self,
name=CellButtonIDs.INFO)
info.set_markup_variants(
{self.VARIANT_INFO: _('More Info')})
action = CellButtonRenderer(self,
name=CellButtonIDs.ACTION)
action.set_markup_variants(
{self.VARIANT_INSTALL: _('Install'),
self.VARIANT_REMOVE: _('Remove'),
self.VARIANT_PURCHASE: _(u'Buy\u2026')})
tr.button_pack_start(info)
tr.button_pack_end(action)
column = Gtk.TreeViewColumn("Applications", tr,
application=AppGenericStore.COL_ROW_DATA)
column.set_cell_data_func(tr, self._cell_data_func_cb)
column.set_fixed_width(200)
column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
self.append_column(column)
# network status watcher
watcher = get_network_watcher()
watcher.connect("changed", self._on_net_state_changed, tr)
# custom cursor
self._cursor_hand = Gdk.Cursor.new(Gdk.CursorType.HAND2)
self.connect("style-updated", self._on_style_updated, tr)
# button and motion are "special"
self.connect("button-press-event", self._on_button_press_event, tr)
self.connect("button-release-event", self._on_button_release_event, tr)
self.connect("key-press-event", self._on_key_press_event, tr)
self.connect("key-release-event", self._on_key_release_event, tr)
self.connect("motion-notify-event", self._on_motion, tr)
self.connect("cursor-changed", self._on_cursor_changed, tr)
# our own "activate" handler
self.connect("row-activated", self._on_row_activated, tr)
self.backend = get_install_backend()
self._transactions_connected = False
self.connect('realize', self._on_realize, tr)
class AppTreeView(Gtk.TreeView):
"""Treeview based view component that takes a AppStore and displays it"""
VARIANT_INFO = 0
VARIANT_REMOVE = 1
VARIANT_INSTALL = 2
VARIANT_PURCHASE = 3
ACTION_BTNS = (VARIANT_REMOVE, VARIANT_INSTALL, VARIANT_PURCHASE)
def __init__(self, app_view, db, icons, show_ratings, store=None):
Gtk.TreeView.__init__(self)
self._logger = logging.getLogger("softwarecenter.view.appview")
self.app_view = app_view
self.db = db
self.pressed = False
self.focal_btn = None
self._action_block_list = []
self._needs_collapse = []
self.expanded_path = None
self.selected_row_renderer = None
# pixbuf for the icon that is displayed in the selected row
self.selected_row_icon = None
#~ # if this hacked mode is available everything will be fast
#~ # and we can set fixed_height mode and still have growing rows
#~ # (see upstream gnome #607447)
try:
self.set_property("ubuntu-almost-fixed-height-mode", True)
self.set_fixed_height_mode(True)
except:
self._logger.warn(
"ubuntu-almost-fixed-height-mode extension not available")
self.set_headers_visible(False)
# our custom renderer
self._renderer = CellRendererAppView(icons,
self.create_pango_layout(''),
show_ratings,
Icons.INSTALLED_OVERLAY)
self._renderer.set_pixbuf_width(32)
self._renderer.set_button_spacing(em(0.3))
# create buttons and set initial strings
info = CellButtonRenderer(self,
name=CellButtonIDs.INFO)
info.set_markup_variants(
{self.VARIANT_INFO: _('More Info')})
action = CellButtonRenderer(self,
name=CellButtonIDs.ACTION)
action.set_markup_variants(
{self.VARIANT_INSTALL: _('Install'),
self.VARIANT_REMOVE: _('Remove'),
self.VARIANT_PURCHASE: _(u'Buy\u2026')})
self._renderer.button_pack_start(info)
self._renderer.button_pack_end(action)
self._column = Gtk.TreeViewColumn(
"Applications", self._renderer,
application=AppGenericStore.COL_ROW_DATA)
self._column.set_cell_data_func(
self._renderer, self._cell_data_func_cb)
self._column.set_fixed_width(200)
self._column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
self.append_column(self._column)
# network status watcher
watcher = get_network_watcher()
watcher.connect("changed", self._on_net_state_changed, self._renderer)
# custom cursor
self._cursor_hand = Gdk.Cursor.new(Gdk.CursorType.HAND2)
self.connect("style-updated", self._on_style_updated, self._renderer)
# workaround broken engines (LP: #1021308)
self.emit("style-updated")
# button and motion are "special"
self.connect("button-press-event", self._on_button_press_event,
self._renderer)
self.connect("button-release-event", self._on_button_release_event,
self._renderer)
self.connect("key-press-event", self._on_key_press_event,
self._renderer)
self.connect("key-release-event", self._on_key_release_event,
self._renderer)
self.connect("motion-notify-event", self._on_motion, self._renderer)
self.connect("cursor-changed", self._on_cursor_changed, self._renderer)
# our own "activate" handler
self.connect("row-activated", self._on_row_activated, self._renderer)
self.backend = get_install_backend()
self._transactions_connected = False
self.connect('realize', self._on_realize, self._renderer)
@property
def appmodel(self):
model = self.get_model()
# FIXME: would be nice if that would be less ugly,
# because we use a treefilter we need to get the "real"
# model first
if isinstance(model, Gtk.TreeModelFilter):
return model.get_model()
return model
def clear_model(self):
vadjustment = self.get_scrolled_window_vadjustment()
if vadjustment:
vadjustment.set_value(0)
self.expanded_path = None
self._needs_collapse = []
if self.appmodel:
# before clearing the model, disconnect it from the view. this
# avoids that the model gets a "cursor_changed" signal for each
# removed row and consequently that _update_selected_row is called
# for rows that are not really selected (LP: #969050)
model = self.get_model()
self.set_model(None)
model.clear()
self.set_model(model)
def set_model(self, model):
# the set_cell_data_func() calls here are a workaround for bug
# LP: #986186 - once that is fixed upstream we can revert this
# and remove the entire "set_model" again
self._column.set_cell_data_func(self._renderer, None)
Gtk.TreeView.set_model(self, model)
self._column.set_cell_data_func(
self._renderer, self._cell_data_func_cb)
def expand_path(self, path):
if path is not None and not isinstance(path, Gtk.TreePath):
raise TypeError("Expects Gtk.TreePath or None, got %s" %
type(path))
model = self.get_model()
old = self.expanded_path
self.expanded_path = path
if old is not None:
start, end = self.get_visible_range() or (None, None)
if ((start and start.compare(old) != -1) or
(end and end.compare(old) != 1)):
self._needs_collapse.append(old)
else:
try: # try... a lazy solution to Bug #846204
model.row_changed(old, model.get_iter(old))
except:
LOG.exception(
"apptreeview.expand_path: Supplied 'old' "
"path is an invalid tree path: '%s'" % old)
if path is None:
return
model.row_changed(path, model.get_iter(path))
def get_scrolled_window_vadjustment(self):
ancestor = self.get_ancestor(Gtk.ScrolledWindow)
if ancestor:
return ancestor.get_vadjustment()
def get_rowref(self, model, path):
if path is not None:
return model[path][AppGenericStore.COL_ROW_DATA]
def rowref_is_category(self, rowref):
return isinstance(rowref, CategoryRowReference)
def reset_action_button(self):
""" Set the current row's action button sensitivity to the
specified value
"""
if self.selected_row_renderer:
action_btn = self.selected_row_renderer.get_button_by_name(
CellButtonIDs.ACTION)
if action_btn:
action_btn.set_sensitive(True)
pkgname = self.db.get_pkgname(self.selected_doc)
self._check_remove_pkg_from_blocklist(pkgname)
def _on_realize(self, widget, tr):
# connect to backend events once self is realized so handlers
# have access to the TreeView's initialised Gdk.Window
if self._transactions_connected:
return
self.backend.connect("transaction-started",
self._on_transaction_started, tr)
self.backend.connect("transaction-finished",
self._on_transaction_finished, tr)
self.backend.connect("transaction-stopped",
self._on_transaction_stopped, tr)
self._transactions_connected = True
def _calc_row_heights(self, tr):
ypad = StockEms.SMALL
tr.set_property('xpad', StockEms.MEDIUM)
tr.set_property('ypad', ypad)
for btn in tr.get_buttons():
# recalc button geometry and cache
btn.configure_geometry(self.create_pango_layout(""))
btn_h = btn.height
tr.normal_height = max(32 + 2 * ypad, em(2.5) + ypad)
tr.selected_height = tr.normal_height + btn_h + StockEms.MEDIUM
def _on_style_updated(self, widget, tr):
self._calc_row_heights(tr)
def _on_motion(self, tree, event, tr):
window = self.get_window()
x, y = int(event.x), int(event.y)
if not self._xy_is_over_focal_row(x, y):
window.set_cursor(None)
return
path = tree.get_path_at_pos(x, y)
if not path:
window.set_cursor(None)
return
rowref = self.get_rowref(tree.get_model(), path[0])
if not rowref:
return
if self.rowref_is_category(rowref):
window.set_cursor(None)
return
model = tree.get_model()
app = model[path[0]][AppGenericStore.COL_ROW_DATA]
if (not network_state_is_connected() and
not self.appmodel.is_installed(app)):
for btn_id in self.ACTION_BTNS:
btn_id = tr.get_button_by_name(CellButtonIDs.ACTION)
btn_id.set_sensitive(False)
use_hand = False
for btn in tr.get_buttons():
if btn.state == Gtk.StateFlags.INSENSITIVE:
continue
if btn.point_in(x, y):
use_hand = True
if self.focal_btn is btn:
btn.set_state(Gtk.StateFlags.ACTIVE)
elif not self.pressed:
btn.set_state(Gtk.StateFlags.PRELIGHT)
else:
if btn.state != Gtk.StateFlags.NORMAL:
btn.set_state(Gtk.StateFlags.NORMAL)
if use_hand:
window.set_cursor(self._cursor_hand)
else:
window.set_cursor(None)
def _on_cursor_changed(self, view, tr):
model = view.get_model()
sel = view.get_selection()
path = view.get_cursor()[0]
rowref = self.get_rowref(model, path)
if not rowref:
return
if self.has_focus():
self.grab_focus()
if self.rowref_is_category(rowref):
self.expand_path(None)
return
sel.select_path(path)
self._update_selected_row(view, tr, path)
def _update_selected_row(self, view, tr, path=None):
# keep track of the currently selected row renderer and associated
# doc for use when updating the widgets and for use with the Unity
# integration feature
self.selected_row_renderer = tr
self.selected_doc = tr.application
sel = view.get_selection()
if not sel:
return False
model, rows = sel.get_selected_rows()
if not rows:
return False
row = rows[0]
if self.rowref_is_category(row):
return False
# update active app, use row-ref as argument
self.expand_path(row)
app = model[row][AppGenericStore.COL_ROW_DATA]
# make sure this is not a category (LP: #848085)
if self.rowref_is_category(app):
return False
action_btn = tr.get_button_by_name(
CellButtonIDs.ACTION)
#if not action_btn: return False
if self.appmodel.is_installed(app):
action_btn.set_variant(self.VARIANT_REMOVE)
action_btn.set_sensitive(True)
action_btn.show()
elif self.appmodel.is_available(app):
if self.appmodel.is_purchasable(app):
action_btn.set_variant(self.VARIANT_PURCHASE)
else:
action_btn.set_variant(self.VARIANT_INSTALL)
action_btn.set_sensitive(True)
action_btn.show()
if not network_state_is_connected():
action_btn.set_sensitive(False)
self.app_view.emit("application-selected",
self.appmodel.get_application(app))
return
else:
action_btn.set_sensitive(False)
action_btn.hide()
self.app_view.emit("application-selected",
self.appmodel.get_application(app))
return
if self.appmodel.get_transaction_progress(app) > 0:
action_btn.set_sensitive(False)
elif self.pressed and self.focal_btn == action_btn:
action_btn.set_state(Gtk.StateFlags.ACTIVE)
else:
action_btn.set_state(Gtk.StateFlags.NORMAL)
self.app_view.emit(
"application-selected", self.appmodel.get_application(app))
return False
def _on_row_activated(self, view, path, column, tr):
rowref = self.get_rowref(view.get_model(), path)
if not rowref:
return
elif self.rowref_is_category(rowref):
return
x, y = self.get_pointer()
for btn in tr.get_buttons():
if btn.point_in(x, y):
return
app = self.appmodel.get_application(rowref)
if app:
self.app_view.emit("application-activated", app)
def _on_button_event_get_path(self, view, event, allow_categories=False):
if event.button != 1:
return False
res = view.get_path_at_pos(int(event.x), int(event.y))
if not res:
return False
# check the path is valid and is not a category row
path = res[0]
is_cat = self.rowref_is_category(
self.get_rowref(view.get_model(), path))
if path is None:
return False
if is_cat:
if allow_categories:
return path
else:
return False
# only act when the selection is already there
selection = view.get_selection()
if not selection.path_is_selected(path):
return False
return path
def _on_button_press_event(self, view, event, tr):
path = self._on_button_event_get_path(view, event,
allow_categories=False)
if not path:
path = self._on_button_event_get_path(view, event,
allow_categories=True)
if path:
if view.row_expanded(path):
view.collapse_row(path)
else:
view.expand_row(path, True)
return True # swallow event to avoid double action when
# clicking on the expander arrow itself
return
self.pressed = True
x, y = int(event.x), int(event.y)
for btn in tr.get_buttons():
if (btn.point_in(x, y) and
(btn.state != Gtk.StateFlags.INSENSITIVE)):
self.focal_btn = btn
btn.set_state(Gtk.StateFlags.ACTIVE)
view.queue_draw()
return
self.focal_btn = None
def _on_button_release_event(self, view, event, tr):
path = self._on_button_event_get_path(view, event)
if not path:
return
self.pressed = False
x, y = int(event.x), int(event.y)
for btn in tr.get_buttons():
if (btn.point_in(x, y) and
(btn.state != Gtk.StateFlags.INSENSITIVE)):
btn.set_state(Gtk.StateFlags.NORMAL)
self.get_window().set_cursor(self._cursor_hand)
if self.focal_btn is not btn:
break
self._init_activated(btn, view.get_model(), path)
view.queue_draw()
break
self.focal_btn = None
def _on_key_press_event(self, widget, event, tr):
kv = event.keyval
#print kv
r = False
if kv == Gdk.KEY_Right: # right-key
btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if btn is None:
return # Bug #846779
if btn.state != Gtk.StateFlags.INSENSITIVE:
btn.has_focus = True
btn = tr.get_button_by_name(CellButtonIDs.INFO)
btn.has_focus = False
elif kv == Gdk.KEY_Left: # left-key
btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if btn is None:
return # Bug #846779
btn.has_focus = False
btn = tr.get_button_by_name(CellButtonIDs.INFO)
btn.has_focus = True
elif kv == Gdk.KEY_space: # spacebar
for btn in tr.get_buttons():
if (btn is not None and btn.has_focus and
btn.state != Gtk.StateFlags.INSENSITIVE):
btn.set_state(Gtk.StateFlags.ACTIVE)
sel = self.get_selection()
model, it = sel.get_selected()
path = model.get_path(it)
if path:
#self._init_activated(btn, self.get_model(), path)
r = True
break
self.queue_draw()
return r
def _on_key_release_event(self, widget, event, tr):
kv = event.keyval
r = False
if kv == 32: # spacebar
for btn in tr.get_buttons():
if btn.has_focus and btn.state != Gtk.StateFlags.INSENSITIVE:
btn.set_state(Gtk.StateFlags.NORMAL)
sel = self.get_selection()
model, it = sel.get_selected()
path = model.get_path(it)
if path:
self._init_activated(btn, model, path)
btn.has_focus = False
r = True
break
self.queue_draw()
return r
def _init_activated(self, btn, model, path):
app = model[path][AppGenericStore.COL_ROW_DATA]
s = Gtk.Settings.get_default()
GLib.timeout_add(s.get_property("gtk-timeout-initial"),
self._app_activated_cb,
btn,
btn.name,
app,
path)
def _cell_data_func_cb(self, col, cell, model, it, user_data):
path = model.get_path(it)
# this will pre-load data *only* on a AppListStore, it has
# no effect with a AppTreeStore
if model[path][0] is None:
indices = path.get_indices()
model.load_range(indices, 5)
if path in self._needs_collapse:
# collapse rows that were outside the visible range and
# thus not immediately collapsed when expand_path was called
cell.set_property('isactive', False)
i = self._needs_collapse.index(path)
del self._needs_collapse[i]
model.row_changed(path, it)
return
# update active property
cell.set_property('isactive', path == self.expanded_path)
# update "text" property for a11y
raw = model[path][AppGenericStore.COL_ROW_DATA]
if self.rowref_is_category(raw):
text = raw.display_name
elif raw:
text = self.db.get_pkgname(raw)
else:
# this can happen for empty/not-yet-loaded row, LP: #981992
text = ""
cell.set_property('text', text)
def _app_activated_cb(self, btn, btn_id, app, path):
if self.rowref_is_category(app):
return
model = self.appmodel
# don't continue if we don't have a valid model (LP: #969907)
if not model:
return
pkgname = model.get_pkgname(app)
if btn_id == CellButtonIDs.INFO:
self.app_view.emit("application-activated",
model.get_application(app))
elif btn_id == CellButtonIDs.ACTION:
btn.set_sensitive(False)
model.row_changed(path, model.get_iter(path))
app_manager = get_appmanager()
# be sure we don't request an action for a pkg with
# pre-existing actions
if pkgname in self._action_block_list:
logging.debug("Action already in progress for package:"
" '%s'" % pkgname)
return False
self._action_block_list.append(pkgname)
if model.is_installed(app):
action = AppActions.REMOVE
elif model.is_purchasable(app):
app_manager.buy_app(model.get_application(app))
model.notify_action_request(app, path)
return
else:
action = AppActions.INSTALL
model.notify_action_request(app, path)
app_manager.request_action(
model.get_application(app), [], [],
action)
return False
def _set_cursor(self, btn, cursor):
# make sure we have a window instance (LP: #617004)
window = self.get_window()
if isinstance(window, Gdk.Window):
x, y = self.get_pointer()
if btn.point_in(x, y):
window.set_cursor(cursor)
def _on_transaction_started(self, backend, pkgname, appname, trans_id,
trans_type, tr):
"""callback when an application install/remove transaction has
started
"""
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if action_btn:
action_btn.set_sensitive(False)
self._set_cursor(action_btn, None)
def _on_transaction_finished(self, backend, result, tr):
"""callback when an application install/remove transaction has
finished
"""
# need to send a cursor-changed so the row button is properly updated
self.emit("cursor-changed")
# remove pkg from the block list
self._check_remove_pkg_from_blocklist(result.pkgname)
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if action_btn:
action_btn.set_sensitive(True)
self._set_cursor(action_btn, self._cursor_hand)
def _on_transaction_stopped(self, backend, result, tr):
"""callback when an application install/remove transaction has
stopped
"""
# remove pkg from the block list
self._check_remove_pkg_from_blocklist(result.pkgname)
action_btn = tr.get_button_by_name(CellButtonIDs.ACTION)
if action_btn:
# this should be a function that decides action button state label
if action_btn.current_variant == self.VARIANT_INSTALL:
action_btn.set_markup(self.VARIANT_REMOVE)
action_btn.set_sensitive(True)
self._set_cursor(action_btn, self._cursor_hand)
def _on_net_state_changed(self, watcher, state, tr):
self._update_selected_row(self, tr)
# queue a draw just to be sure the view is looking right
self.queue_draw()
def _check_remove_pkg_from_blocklist(self, pkgname):
if pkgname in self._action_block_list:
i = self._action_block_list.index(pkgname)
del self._action_block_list[i]
def _xy_is_over_focal_row(self, x, y):
res = self.get_path_at_pos(x, y)
#cur = self.get_cursor()
if not res:
return False
return self.get_path_at_pos(x, y)[0] == self.get_cursor()[0]