class Toolbar(GObject.GObject):
__gsignals__ = {
'state-changed': (GObject.SIGNAL_RUN_FIRST, None, ()),
'selection-mode-changed': (GObject.SIGNAL_RUN_FIRST, None, ()),
}
_selectionMode = False
_maximized = False
def __init__(self):
GObject.GObject.__init__(self)
self._stack_switcher = StackSwitcher(margin_top=2, margin_bottom=2)
self._stack_switcher.show()
self._ui = Gtk.Builder()
self._ui.add_from_resource('/org/gnome/Music/headerbar.ui')
self.header_bar = self._ui.get_object('header-bar')
self._search_button = self._ui.get_object('search-button')
self.searchbar = Searchbar(self._stack_switcher, self._search_button)
self._select_button = self._ui.get_object('select-button')
self._cancel_button = self._ui.get_object('done-button')
self._back_button = self._ui.get_object('back-button')
self._close_separator = self._ui.get_object('close-button-separator')
self._close_button = self._ui.get_object('close-button')
self._selection_menu = self._ui.get_object('selection-menu')
self._selection_menu_button = self._ui.get_object('selection-menu-button')
self._selection_menu_label = self._ui.get_object('selection-menu-button-label')
self._selection_menu_button.set_relief(Gtk.ReliefStyle.NONE)
if Gtk.Widget.get_default_direction() is Gtk.TextDirection.RTL:
_back_button_image = self._ui.get_object('back-button-image')
_back_button_image.set_property('icon-name', 'go-previous-rtl-symbolic')
if Gtk.get_minor_version() >= 11:
self.header_bar.remove(self._close_button)
self.header_bar.remove(self._close_separator)
self.header_bar.remove(self._select_button)
self.header_bar.remove(self._cancel_button)
self.header_bar.remove(self._search_button)
self.header_bar.pack_end(self._close_button)
self.header_bar.pack_end(self._close_separator)
self.header_bar.pack_end(self._select_button)
self.header_bar.pack_end(self._cancel_button)
self.header_bar.pack_end(self._search_button)
self._back_button.connect('clicked', self.on_back_button_clicked)
self._close_button.connect('clicked', self._close_button_clicked)
if Gtk.get_minor_version() <= 8:
self._close_button.connect('hierarchy-changed', self._on_hierarchy_changed)
def _close_button_clicked(self, btn):
if Gtk.get_minor_version() > 8:
self._close_button.get_toplevel().close()
else:
self._close_button.get_toplevel().destroy()
def reset_header_title(self):
self.header_bar.set_custom_title(self._stack_switcher)
def _on_hierarchy_changed(self, widget, previous_toplevel):
if previous_toplevel:
previous_toplevel.disconnect(self._window_state_handler)
self._close_button.get_toplevel().add_events(Gdk.EventMask.STRUCTURE_MASK)
self._window_state_handler = \
self._close_button.get_toplevel().connect('window-state-event', self._on_window_state_event)
def _on_window_state_event(self, widget, event):
if event.changed_mask & Gdk.WindowState.MAXIMIZED:
self._maximized = bool(event.new_window_state & Gdk.WindowState.MAXIMIZED)
self._update()
def set_stack(self, stack):
self._stack_switcher.set_stack(stack)
def get_stack(self):
return self._stack_switcher.get_stack()
def set_selection_mode(self, selectionMode):
self._selectionMode = selectionMode
if selectionMode:
self._select_button.hide()
self._cancel_button.show()
self.header_bar.get_style_context().add_class('selection-mode')
self._cancel_button.get_style_context().remove_class('selection-mode')
else:
self.header_bar.get_style_context().remove_class('selection-mode')
self._select_button.set_active(False)
self._select_button.show()
self._cancel_button.hide()
self.emit('selection-mode-changed')
self._update()
def on_back_button_clicked(self, widget):
view = self._stack_switcher.get_stack().get_visible_child()
view._back_button_clicked(view)
self.set_state(ToolbarState.ALBUMS)
def set_state(self, state, btn=None):
self._state = state
self._update()
self.emit('state-changed')
def _update(self):
if self._state == ToolbarState.SINGLE:
self.header_bar.set_custom_title(None)
elif self._selectionMode:
self.header_bar.set_custom_title(self._selection_menu_button)
else:
self.reset_header_title()
self._back_button.set_visible(not self._selectionMode and self._state == ToolbarState.SINGLE)
if Gtk.get_minor_version() > 8:
self._close_separator.set_visible(not self._selectionMode)
self._close_button.set_visible(not self._selectionMode)
else:
self._close_separator.set_visible(not self._selectionMode and self._maximized)
self._close_button.set_visible(not self._selectionMode and self._maximized)
