add a sidebar with infos

bingo.py

@@ -1,21 +1,79 @@
 #!/usr/bin/env python3
 
 from textual.app import App, ComposeResult
-from textual.widgets import Header, Input, Static, Button
+from textual.widgets import Header, Input, Static, Button 
-from textual.containers import Horizontal
+from textual.containers import Horizontal, Container
 from textual.validation import Number
+from textual.command import DiscoveryHit, Provider, Hits, Hit
+from textual.reactive import reactive
 
 from datetime import datetime
 
 from BingoBoard import BingoBoard
 
+MESSAGE = '''
+Be excellent to each other!
+
+Made with :red_heart: by Panki
+
+[@click="app.open_link('https://tty0.social/@panki')"]Mastodon:[/] tty0.social/@panki
+[@click="app.open_link('https://git.theresno.cloud/panki/bingo-cli')"]Source:[/] git.theresno.cloud/panki/bingo-cli
+
+Built using [@click="app.open_link('https://textual.textualize.io/')"]Textual[/]
+
+'''
+
+class AboutCommand(Provider):
+    async def discover(self) -> Hits:
+        yield DiscoveryHit(display='About', command=self.app.action_toggle_sidebar, help='Link to repo etc.')
+
+    def show_about(self):
+        pass
+
+    async def search(self, query: str) -> Hits:
+        matcher = self.matcher(query)
+        command = "About"
+        score = matcher.match(command)
+        if score > 0: 
+            yield Hit(score, matcher.highlight(command), self.app.action_toggle_sidebar, 'Link to repo etc.')
+
+class Sidebar(Container):
+    def compose(self) -> ComposeResult:
+        yield Static('CCC Bingo', classes='title')
+        yield Static(MESSAGE, classes='message')
+        self.button = Button('< Back', variant='primary', classes='btn_sidebar')
+        self.button.disabled = True
+        yield self.button
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        print('sidebar button press')
+        self.app.action_toggle_sidebar()
+
 class BingoApp(App):
     '''A Textual app to run a Bingo board.'''
     CSS_PATH = "bingo.tcss"
+    COMMANDS = App.COMMANDS | {AboutCommand}
+    AUTO_FOCUS = 'Input'
+
+    show_sidebar = reactive(False)
+
+    def action_toggle_sidebar(self) -> None:
+        print('sidebar toggle')
+        sidebar = self.query_one(Sidebar)
+        self.set_focus(None)
+        if sidebar.has_class("-hidden"):
+            sidebar.remove_class("-hidden")
+            sidebar.button.disabled = False
+        else:
+            if sidebar.query("*:focus"):
+                self.screen.set_focus(None)
+            sidebar.add_class("-hidden")
+            sidebar.button.disabled = True
 
     def compose(self) -> ComposeResult:
         '''Create child widgets for the app.'''
-        yield Header()
+        yield Sidebar(classes="-hidden")
+        yield Header(show_clock=True)
         yield BingoDisplay()
 
     def on_mount(self) -> None:

bingo.tcss

@@ -1,3 +1,7 @@
+Screen {
+    layers: base overlay;
+}
+
 BingoBoard {
     layout: grid;
     grid-size: 5 5;
@@ -42,3 +46,39 @@ Input.-valid {
 Input.-valid:focus {
     border: tall $success;
 }
+
+Sidebar {
+    width: 40;
+    background: $panel;
+    transition: offset 500ms in_out_cubic;
+    layer: overlay;
+}
+
+Sidebar:focus-within {
+    offset: 0 0 !important;
+}
+
+Sidebar.-hidden {
+    offset-x: -100%;
+}
+
+Static.title {
+    background: $boost;
+    color: $secondary;
+    padding: 2 4;
+    border-right: vkey $background;
+    dock: top;
+    text-align: center;
+    text-style: bold;
+}
+Static.message {
+    background: $boost;
+    color: $text;
+    height: 1fr;
+    border-right: vkey $background;
+    text-align: center;
+}
+
+Button.btn_sidebar {
+  width: 100%;
+}