Python script, ASCII text executable
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"""
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MATE-like app menu applet for the Panorama panel.
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Copyright 2025, roundabout-host.com <vlad@roundabout-host.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public Licence as published by
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the Free Software Foundation, either version 3 of the Licence, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public Licence for more details.
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You should have received a copy of the GNU General Public Licence
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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import os
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from pathlib import Path
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import locale
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import panorama_panel
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import gi
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gi.require_version("Gtk", "4.0")
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from gi.repository import Gtk, GLib, Gio, Gdk
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module_directory = Path(__file__).resolve().parent
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CATEGORY_MAPPINGS = {
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"Utility": {"menu_name": "Accessories", "icon": "applications-accessories"},
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"Development": {"menu_name": "Programming", "icon": "applications-development"},
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"Game": {"menu_name": "Games", "icon": "applications-games"},
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"Graphics": {"menu_name": "Graphics", "icon": "applications-graphics"},
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"Network": {"menu_name": "Network", "icon": "applications-internet"},
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"AudioVideo": {"menu_name": "Multimedia", "icon": "applications-multimedia"},
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"Office": {"menu_name": "Office", "icon": "applications-office"},
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"Science": {"menu_name": "Science", "icon": "applications-science"},
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"Education": {"menu_name": "Education", "icon": "applications-education"},
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"System": {"menu_name": "System", "icon": "applications-system"},
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"Settings": {"menu_name": "Settings", "icon": "preferences-desktop"},
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"Other": {"menu_name": "Other", "icon": "applications-other"},
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}
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custom_css = """
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.no-menu-item-padding:dir(ltr) {
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padding-left: 0;
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}
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.no-menu-item-padding:dir(rtl) {
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padding-right: 0;
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}
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"""
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css_provider = Gtk.CssProvider()
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css_provider.load_from_data(custom_css)
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Gtk.StyleContext.add_provider_for_display(
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Gdk.Display.get_default(),
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css_provider,
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Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
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)
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def force_visible_on_visible_notify(widget, *args):
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if not widget.get_visible():
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widget.set_visible(True)
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def add_icons_to_menu(popover: Gtk.PopoverMenu):
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section = popover.get_child().get_first_child().get_first_child().get_first_child()
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while section is not None:
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child = section.get_first_child().get_first_child()
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while child is not None:
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gutter_box: Gtk.Box = child.get_first_child()
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if isinstance(gutter_box.get_next_sibling(), Gtk.Image):
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# For some reason GTK creates images but they're hidden?
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image: Gtk.Image = gutter_box.get_next_sibling()
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label: Gtk.Label = image.get_next_sibling()
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image.unparent()
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gutter_box.unparent()
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gutter_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
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gutter_box.insert_before(child, label)
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gutter_box.append(image)
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image.set_icon_size(Gtk.IconSize.LARGE)
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image.set_margin_start(8)
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image.set_margin_end(8)
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child.add_css_class("no-menu-item-padding")
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# Push the arrow to the left
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label.set_halign(Gtk.Align.FILL)
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label.set_hexpand(True)
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label.set_xalign(0)
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# GTK pushes its stance on icons so hard it makes them invisible multiple times;
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# force it visible
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image.set_visible(True)
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image.connect("notify::visible", force_visible_on_visible_notify)
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# Find the submenu if there is one
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subchild = child.get_first_child()
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submenu = None
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while subchild is not None:
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if isinstance(subchild, Gtk.PopoverMenu):
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submenu = subchild
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subchild = subchild.get_next_sibling()
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# Recursive
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if submenu is not None:
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add_icons_to_menu(submenu)
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child = child.get_next_sibling()
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section = section.get_next_sibling()
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locale.bindtextdomain("panorama-app-menu", module_directory / "locale")
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_ = lambda x: locale.dgettext("panorama-app-menu", x)
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class AppMenu(panorama_panel.Applet):
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name = _("App menu")
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description = _("Show apps installed on your system, grouped by category")
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def __init__(self, orientation=Gtk.Orientation.HORIZONTAL, config=None):
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super().__init__(orientation=orientation, config=config)
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locale.bindtextdomain("panorama-app-menu", module_directory / "locale")
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_ = lambda x: locale.dgettext("panorama-app-menu", x)
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if config is None:
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config = {}
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self.category_mappings = config.get("category_mappings", CATEGORY_MAPPINGS)
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self.trigger_name = config.get("trigger_name", "app-menu")
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self.button = Gtk.MenuButton()
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self.button.set_has_frame(False) # flat look
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self.icon_name = config.get("icon_name", "start-here-symbolic")
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self.icon = Gtk.Image.new_from_icon_name(self.icon_name)
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self.button.set_child(self.icon)
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self.apps_by_id: dict[int, Gio.AppInfo] = {}
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# Wait for the widget to be in a layer-shell window before doing this
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self.connect("realize", lambda *args: self.add_trigger_to_app())
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self.menu = Gio.Menu()
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self.popover = Gtk.PopoverMenu.new_from_model_full(self.menu, Gtk.PopoverMenuFlags.NESTED)
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self.popover.set_has_arrow(False)
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panorama_panel.track_popover(self.popover)
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self.button.set_popover(self.popover)
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self.generate_app_menu()
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self.append(self.button)
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self.context_menu = self.make_context_menu()
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panorama_panel.track_popover(self.context_menu)
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right_click_controller = Gtk.GestureClick()
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right_click_controller.set_button(3)
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right_click_controller.connect("pressed", self.show_context_menu)
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self.add_controller(right_click_controller)
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action_group = Gio.SimpleActionGroup()
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options_action = Gio.SimpleAction.new("options", None)
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options_action.connect("activate", self.show_options)
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action_group.add_action(options_action)
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options_action = Gio.SimpleAction.new("launch-app", GLib.VariantType.new("s"))
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options_action.connect("activate", self.launch_app)
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action_group.add_action(options_action)
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self.insert_action_group("applet", action_group)
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self.options_window = None
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def add_trigger_to_app(self):
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app: Gtk.Application = self.get_root().get_application()
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action = Gio.SimpleAction.new(self.trigger_name, None)
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action.connect("activate", lambda *args: self.button.popup())
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app.add_action(action)
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def launch_app(self, action, id: GLib.Variant):
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app = self.apps_by_id[int(id.get_string())]
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app.launch()
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def make_context_menu(self):
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menu = Gio.Menu()
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menu.append(_("Menu _options"), "applet.options")
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context_menu = Gtk.PopoverMenu.new_from_model(menu)
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context_menu.set_has_arrow(False)
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context_menu.set_parent(self)
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context_menu.set_halign(Gtk.Align.START)
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context_menu.set_flags(Gtk.PopoverMenuFlags.NESTED)
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return context_menu
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def show_context_menu(self, gesture, n_presses, x, y):
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rect = Gdk.Rectangle()
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rect.x = int(x)
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rect.y = int(y)
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rect.width = 1
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rect.height = 1
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self.context_menu.set_pointing_to(rect)
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self.context_menu.popup()
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def show_options(self, _0=None, _1=None):
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...
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def shutdown(self):
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app: Gtk.Application = self.get_root().get_application()
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app.remove_action(self.trigger_name)
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def get_config(self):
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return {"category_mappings": self.category_mappings, "trigger_name": self.trigger_name, "icon_name": self.icon_name}
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def set_panel_position(self, position):
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self.popover.set_position(panorama_panel.OPPOSITE_POSITION[position])
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self.button.set_direction(panorama_panel.POSITION_TO_ARROW[panorama_panel.OPPOSITE_POSITION[position]])
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def generate_app_menu(self):
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self.menu.remove_all()
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self.apps_by_id = {}
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all_apps = Gio.AppInfo.get_all()
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apps_by_category: dict[str, list[Gio.AppInfo]] = {}
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for category, info in self.category_mappings.items():
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apps_by_category[category] = []
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for app in all_apps:
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category_found = False
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if isinstance(app, Gio.DesktopAppInfo):
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if app.get_categories() is not None:
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categories = app.get_categories().split(";")
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for category in categories:
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if category in apps_by_category:
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apps_by_category[category].append(app)
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category_found = True
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if not category_found:
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apps_by_category["Other"].append(app)
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for category, info in self.category_mappings.items():
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if apps_by_category[category]:
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item = Gio.MenuItem.new(_(info["menu_name"]))
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item.set_icon(Gio.ThemedIcon.new(info["icon"]))
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submenu = Gio.Menu()
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for app in apps_by_category[category]:
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if isinstance(app, Gio.DesktopAppInfo) and (app.get_is_hidden() or app.get_nodisplay()):
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continue
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subitem = Gio.MenuItem.new(app.get_display_name(), f"applet.launch-app::{id(app)}")
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subitem.set_icon(app.get_icon() or Gio.ThemedIcon.new("image-missing"))
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self.apps_by_id[id(app)] = app
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submenu.append_item(subitem)
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item.set_submenu(submenu)
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self.menu.append_item(item)
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add_icons_to_menu(self.popover)
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