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import sys
import gi
gi.require_version("Gtk", "4.0")
from gi.repository import GLib, Gio, Gtk
# This would typically be its own file
MENU_XML = """
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<menu id="menubar">
<submenu>
<attribute name="label" translatable="yes">Change label</attribute>
<section>
<item>
<attribute name="action">win.change_label</attribute>
<attribute name="target">String 1</attribute>
<attribute name="label" translatable="yes">String 1</attribute>
</item>
<item>
<attribute name="action">win.change_label</attribute>
<attribute name="target">String 2</attribute>
<attribute name="label" translatable="yes">String 2</attribute>
</item>
<item>
<attribute name="action">win.change_label</attribute>
<attribute name="target">String 3</attribute>
<attribute name="label" translatable="yes">String 3</attribute>
</item>
</section>
</submenu>
<submenu>
<attribute name="label" translatable="yes">Window</attribute>
<section>
<item>
<attribute name="action">win.maximize</attribute>
<attribute name="label" translatable="yes">Maximize</attribute>
</item>
</section>
<section>
<item>
<attribute name="action">app.about</attribute>
<attribute name="label" translatable="yes">_About</attribute>
</item>
<item>
<attribute name="action">app.quit</attribute>
<attribute name="label" translatable="yes">_Quit</attribute>
<attribute name="accel"><Primary>q</attribute>
</item>
</section>
</submenu>
</menu>
</interface>
"""
class AppWindow(Gtk.ApplicationWindow):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.set_default_size(200, 200)
# By default the title bar will be hide, let's show it
self.props.show_menubar = True
# This will be in the windows group and have the 'win' prefix
max_action = Gio.SimpleAction.new_stateful(
"maximize", None, GLib.Variant.new_boolean(False)
)
max_action.connect("change-state", self.on_maximize_toggle)
self.add_action(max_action)
# Keep it in sync with the actual state
self.connect(
"notify::maximized",
lambda obj, _pspec: max_action.set_state(
GLib.Variant.new_boolean(obj.props.maximized)
),
)
lbl_variant = GLib.Variant.new_string("String 1")
lbl_action = Gio.SimpleAction.new_stateful(
"change_label", lbl_variant.get_type(), lbl_variant
)
lbl_action.connect("change-state", self.on_change_label_state)
self.add_action(lbl_action)
self.label = Gtk.Label(label=lbl_variant.get_string())
self.set_child(self.label)
def on_change_label_state(self, action, value):
action.set_state(value)
self.label.set_text(value.get_string())
def on_maximize_toggle(self, action, value):
action.set_state(value)
if value.get_boolean():
self.maximize()
else:
self.unmaximize()
class Application(Gtk.Application):
def __init__(self, *args, **kwargs):
super().__init__(
*args,
application_id="org.example.App",
flags=Gio.ApplicationFlags.HANDLES_COMMAND_LINE,
**kwargs,
)
self.window = None
self.add_main_option(
"test",
ord("t"),
GLib.OptionFlags.NONE,
GLib.OptionArg.NONE,
"Command line test",
None,
)
def do_startup(self):
Gtk.Application.do_startup(self)
action = Gio.SimpleAction.new("about", None)
action.connect("activate", self.on_about)
self.add_action(action)
action = Gio.SimpleAction.new("quit", None)
action.connect("activate", self.on_quit)
self.add_action(action)
builder = Gtk.Builder.new_from_string(MENU_XML, -1)
self.set_menubar(builder.get_object("menubar"))
def do_activate(self):
# We only allow a single window and raise any existing ones
if not self.window:
# Windows are associated with the application
# when the last one is closed the application shuts down
self.window = AppWindow(application=self, title="Main Window")
self.window.present()
def do_command_line(self, command_line):
options = command_line.get_options_dict()
# convert GVariantDict -> GVariant -> dict
options = options.end().unpack()
if "test" in options:
# This is printed on the main instance
pass
self.activate()
return 0
def on_about(self, _action, _param):
about_dialog = Gtk.AboutDialog(transient_for=self.window, modal=True)
about_dialog.present()
def on_quit(self, _action, _param):
self.quit()
if __name__ == "__main__":
app = Application()
app.run(sys.argv)
|
