vm-manager: add empty list screen

pkgs/clan-vm-manager/clan_vm_manager/components/gkvstore.py

@@ -1,6 +1,6 @@
 import logging
 from collections.abc import Callable
-from typing import Any, Generic, TypeVar
+from typing import Any, Generic, TypeVar, ClassVar
 
 import gi
 
@@ -24,6 +24,10 @@ class GKVStore(GObject.GObject, Gio.ListModel, Generic[K, V]):
     This class could be optimized by having the objects remember their position in the list.
     """
 
+    __gsignals__: ClassVar = {
+        "is_ready": (GObject.SignalFlags.RUN_FIRST, None, []),
+    }
+
     def __init__(self, gtype: type[V], key_gen: Callable[[V], K]) -> None:
         super().__init__()
         self.gtype = gtype

pkgs/clan-vm-manager/clan_vm_manager/components/list_splash.py

@@ -0,0 +1,70 @@
+import logging
+from typing import Callable, Optional, TypeVar
+
+import gi
+
+from clan_vm_manager import assets
+
+gi.require_version("Adw", "1")
+from gi.repository import Adw, Gio, GObject, Gtk, GdkPixbuf
+
+log = logging.getLogger(__name__)
+
+ListItem = TypeVar("ListItem", bound=GObject.Object)
+CustomStore = TypeVar("CustomStore", bound=Gio.ListModel)
+
+
+class EmptySplash(Gtk.Box):
+    def __init__(self, on_join: Callable[[str], None]) -> None:
+        super().__init__(orientation=Gtk.Orientation.VERTICAL)
+        self.on_join = on_join
+
+        vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
+        clan_icon = self.load_image(str(assets.get_asset("clan_black_notext.png")))
+
+        if clan_icon:
+            image = Gtk.Image.new_from_pixbuf(clan_icon)
+        else:
+            image = Gtk.Image.new_from_icon_name("image-missing")
+        # same as the clamp
+        image.set_pixel_size(400)
+        image.set_opacity(0.5)
+        image.set_margin_top(20)
+        image.set_margin_bottom(10)
+
+        vbox.append(image)
+
+        empty_label = Gtk.Label(label="Welcome to Clan! Join your first clan.")
+        join_entry = Gtk.Entry()
+        join_entry.set_placeholder_text("clan://<url>")
+        join_entry.set_hexpand(True)
+
+        join_button = Gtk.Button(label="Join")
+        join_button.connect("clicked", self._on_join, join_entry)
+
+        clamp = Adw.Clamp()
+        clamp.set_maximum_size(400)
+        vbox.append(empty_label)
+        hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=6)
+        hbox.append(join_entry)
+        hbox.append(join_button)
+        vbox.append(hbox)
+        clamp.set_child(vbox)
+
+        self.append(clamp)
+
+    def load_image(self, file_path: str) -> Optional[GdkPixbuf.Pixbuf]:
+        try:
+            pixbuf = GdkPixbuf.Pixbuf.new_from_file(file_path)
+            return pixbuf
+        except Exception as e:
+            log.error(f"Failed to load image: {e}")
+            return None
+
+    def _on_join(self, button: Gtk.Button, entry: Gtk.Entry) -> None:
+        """
+        Callback for the join button
+        Extracts the text from the entry and calls the on_join callback
+        """
+        log.info(f"Splash screen: Joining {entry.get_text()}")
+        self.on_join(entry.get_text())

pkgs/clan-vm-manager/clan_vm_manager/views/list.py

@@ -7,8 +7,9 @@ from typing import Any, TypeVar
 import gi
 from clan_cli.clan_uri import ClanURI
 
-from clan_vm_manager import assets
+from clan_vm_manager.components.gkvstore import GKVStore
 from clan_vm_manager.components.interfaces import ClanConfig
+from clan_vm_manager.components.list_splash import EmptySplash
 from clan_vm_manager.components.vmobj import VMObject
 from clan_vm_manager.singletons.toast import (
     LogToast,
@@ -73,43 +74,29 @@ class ClanList(Gtk.Box):
         self.join_boxed_list.add_css_class("join-list")
         self.append(self.join_boxed_list)
 
+        clan_store = ClanStore.use().clan_store
+        clan_store.connect("is_ready", self.display_splash)
+
         self.group_list = create_boxed_list(
-            model=ClanStore.use().clan_store, render_row=self.render_group_row
+            model=clan_store, render_row=self.render_group_row
         )
         self.group_list.add_css_class("group-list")
         self.append(self.group_list)
 
-        # LIST SPLASH
-        clan_icon = assets.get_asset("clan.svg")
+        self.splash = EmptySplash(on_join=lambda x: self.on_join_request(x, x))
 
-        if not icon_path:
-            return ico_buffer
-
-        pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_size(icon_path, icon_size, icon_size)
-
-        empty_label = Gtk.Label(label="Welcome to Clan! Join your first clan.")
-        join_entry = Gtk.Entry()
-        join_entry.set_placeholder_text("clan://<url>")
-        join_entry.set_hexpand(True)
-
-        join_button = Gtk.Button(label="Join")
-        join_button.connect("clicked", lambda x: (), join_entry)
-
-        clamp = Adw.Clamp()
-        clamp.set_maximum_size(400)
-        vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
-        vbox.append(empty_label)
-        hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=6)
-        hbox.append(join_entry)
-        hbox.append(join_button)
-        vbox.append(hbox)
-        clamp.set_child(vbox)
-
-        self.append(clamp)
+    def display_splash(self, source: GKVStore) -> None:
+        print("Displaying splash")
+        if (
+            ClanStore.use().clan_store.get_n_items() == 0
+            and JoinList.use().list_store.get_n_items() == 0
+        ):
+            self.append(self.splash)
 
     def render_group_row(
         self, boxed_list: Gtk.ListBox, vm_store: VMStore
     ) -> Gtk.Widget:
+        self.remove(self.splash)
 
         vm = vm_store.first()
         log.debug("Rendering group row for %s", vm.data.flake.flake_url)

pkgs/clan-vm-manager/clan_vm_manager/windows/main_window.py

@@ -1,5 +1,6 @@
 import logging
 import threading
+from typing import Callable
 
 import gi
 from clan_cli.history.list import list_history
@@ -41,7 +42,9 @@ class MainWindow(Adw.ApplicationWindow):
         self.tray_icon: TrayIcon = TrayIcon(app)
 
         # Initialize all ClanStore
-        threading.Thread(target=self._populate_vms).start()
+        threading.Thread(
+            target=self._populate_vms, args=[self._set_clan_store_ready]
+        ).start()
 
         # Initialize all views
         stack_view = ViewStack.use().view
@@ -65,12 +68,17 @@ class MainWindow(Adw.ApplicationWindow):
 
         self.connect("destroy", self.on_destroy)
 
-    def _populate_vms(self) -> None:
+    def _set_clan_store_ready(self) -> None:
+        ClanStore.use().clan_store.emit("is_ready")
+
+    def _populate_vms(self, done: Callable[[], None]) -> None:
         # Execute `clan flakes add <path>` to democlan for this to work
         # TODO: Make list_history a generator function
         for entry in list_history():
             GLib.idle_add(ClanStore.use().create_vm_task, entry)
 
+        GLib.idle_add(done)
+
     def kill_vms(self) -> None:
         log.debug("Killing all VMs")
         ClanStore.use().kill_all()