Switch to a "tiny" progress bar

this saves horizontal space for when the screen is small.

src/ttotp/TinyProgress.py

@@ -0,0 +1,85 @@
+#!/usr/bin/python3
+
+# SPDX-FileCopyrightText: 2025 Jeff Epler
+# SPDX-FileCopyrightText: 2021 Will McGugan
+#
+# SPDX-License-Identifier: MIT
+
+from textual.app import ComposeResult, RenderResult
+from textual.widgets._progress_bar import ProgressBar, Bar
+from rich.text import Text
+
+
+class OneCellBar(Bar):
+    """The bar portion of the tiny progress bar."""
+
+    BARS = "▁▂▃▄▅▆▇"
+    SHADES = "█▓▒░▒▓"
+
+    DEFAULT_CSS = """
+    OneCellBar {
+        width: 1;
+        height: 1;
+
+        &> .bar--bar {
+            color: $primary;
+            background: $surface;
+        }
+        &> .bar--indeterminate {
+            color: $error;
+            background: $surface;
+        }
+        &> .bar--complete {
+            color: $success;
+            background: $surface;
+        }
+    }
+    """
+
+    def render(self) -> RenderResult:
+        if self.percentage is None:
+            return self.render_indeterminate()
+        else:
+            return self.render_determinate(self.percentage)
+
+    def render_determinate(self, percentage: float) -> RenderResult:
+        bar_style = (
+            self.get_component_rich_style("bar--bar")
+            if percentage < 1
+            else self.get_component_rich_style("bar--complete")
+        )
+        i = self.percentage_to_index(percentage)
+        return Text(self.BARS[i], style=bar_style)
+
+    def watch_percentage(self, percentage: float | None) -> None:
+        """Manage the timer that enables the indeterminate bar animation."""
+        if percentage is not None:
+            self.auto_refresh = None
+        else:
+            self.auto_refresh = 1  # every second
+
+    def render_indeterminate(self) -> RenderResult:
+        bar_style = self.get_component_rich_style("bar--indeterminate")
+        phase = round(self._clock.time) % len(self.SHADES)
+        i = self.SHADES[phase]
+        return Text(i, style=bar_style)
+
+    def percentage_to_index(self, percentage: float) -> int:
+        p = max(0, min(1, percentage))
+        i = round(p * (len(self.BARS) - 1))
+        return i
+
+    def _validate_percentage(self, percentage: float | None) -> float | None:
+        if percentage is None:
+            return None
+        return self.percentage_to_index(percentage) / (len(self.BARS) - 1)
+
+
+class TinyProgress(ProgressBar):
+    def compose(self) -> ComposeResult:
+        if self.show_bar:
+            yield (
+                OneCellBar(id="bar", clock=self._clock)
+                .data_bind(ProgressBar.percentage)
+                .data_bind(ProgressBar.gradient)
+            )

src/ttotp/__main__.py

@@ -20,7 +20,7 @@ from textual.fuzzy import Matcher
 from textual.app import App, ComposeResult
 from textual.events import Key, MouseDown, MouseUp, MouseScrollDown, MouseScrollUp
 from textual.widget import Widget
-from textual.widgets import Label, Footer, ProgressBar, Button, Input
+from textual.widgets import Label, Footer, Button, Input
 from textual.binding import Binding
 from textual.containers import VerticalScroll, Horizontal
 from textual.css.query import DOMQuery
@@ -31,6 +31,8 @@ import pyotp
 import platformdirs
 import tomllib
 
+from .TinyProgress import TinyProgress as ProgressBar
+
 from typing import TypeGuard  # use `typing_extensions` for Python 3.9 and below
 
 # workaround for pyperclip being un-typed
@@ -328,15 +330,13 @@ def search_preprocess(s: str) -> str:
 class TTOTP(App[None]):
     CSS = """
     VerticalScroll { min-height: 1; }
-    .otp-progress { width: 12; }
     .otp-value { width: 9; }
     .otp-hidden { display: none; }
     .otp-name { text-wrap: nowrap; text-overflow: ellipsis; }
     .otp-name:focus { background: red; }
     TOTPLabel { width: 1fr; height: 1; padding: 0 1; }
     Horizontal:focus-within { background: $primary-background; }
-    Bar > .bar--bar { color: $success; }
+    OneCellBar > .bar--bar { color: $success; }
-    Bar { width: 1fr; }
     Button { border: none; height: 1; width: 3; min-width: 4 }
     Horizontal { height: 1; }
     Input { border: none; height: 1; width: 1fr; }
@@ -527,7 +527,8 @@ multiple profiles as configuration file sections, and select one with
         profile_data = config_data.get(profile, None)
         if profile_data is None:
             config_hint(f"The profile {profile!r} file does not exist.")
-        config_data.update(profile_data)
+        else:
+            config_data.update(profile_data)
 
     otp_command = config_data.get("otp-command")
     if otp_command is None: