breadgreet: bring the login UI up to the lock screen's polish
Some checks failed
CI / check (pull_request) Failing after 3s

breadgreet's stylesheet was a crude subset of what `design/sketch.html`
specifies for `.greetoverlay`. Ported it faithfully so the greeter and
the lock screen read as one visual identity:

- Card: proper elevation (`box-shadow: 0 6px 28px`), a hairline
  `alpha(@overlay, 0.09)` border, 10px radius, 300px min-width.
- Entry: recessed `shade(@surface, 1.5)` fill, and an accent focus ring
  (`border-color: @accent` + `box-shadow: 0 0 0 2px alpha(@accent, .28)`)
  matching the sketch's `.gentry:focus`.
- Clock/date over the wallpaper get a soft text-shadow for legibility on
  any background; sizes match the sketch (46 / 14).
- Session picker styled as a surface pill (button + popover), not a bare
  GtkDropDown.
- A CSS-animated ring shown while a greetd request is in flight
  (`sync_busy`, driven from the single `update` exit point).
- Shake on a failed attempt (`flash_error`), matching the lock screen's
  wrong-password motion — fired from both `AppInput::Error` and a PAM
  `AuthPrompt::Error`.

Uses the shared `@define-color` palette (`@surface`, `@overlay`,
`@accent`, `@red`) so it recolours with the theme, same as breadbar.

`cargo test --workspace --all-targets` (157) / `clippy --all-targets -D
warnings` / `fmt --check` all clean. Visual pass still wanted — the CSS
is a direct translation of the mockup, not screenshot-verified.
This commit is contained in:
Breadway 2026-08-31 20:29:38 +08:00
parent 758a5d9f9c
commit 7ac3fdfc85
2 changed files with 145 additions and 19 deletions

View file

@ -46,6 +46,8 @@ struct App {
date_lbl: gtk4::Label,
status_lbl: gtk4::Label,
entry: gtk4::Entry,
card: gtk4::Box,
spinner: gtk4::Box,
stage: Stage,
username: String,
sessions: Vec<sessions::Session>,
@ -168,10 +170,18 @@ impl SimpleComponent for App {
dropdown.upcast()
};
let card = gtk4::Box::new(gtk4::Orientation::Vertical, 8);
// A CSS-animated ring (not GtkSpinner) so it matches the design
// sketch exactly: 2px track, accent top, shown only while a greetd
// request is in flight (see `set_busy`).
let spinner = gtk4::Box::new(gtk4::Orientation::Horizontal, 0);
spinner.add_css_class("login-spinner");
spinner.set_halign(gtk4::Align::Center);
let card = gtk4::Box::new(gtk4::Orientation::Vertical, 0);
card.add_css_class("login-card");
card.append(&entry);
card.append(&status_lbl);
card.append(&spinner);
card.append(&session_widget);
let widgets = view_output!();
@ -243,6 +253,8 @@ impl SimpleComponent for App {
date_lbl,
status_lbl,
entry,
card,
spinner,
stage: Stage::Username,
username: String::new(),
sessions,
@ -289,10 +301,38 @@ impl SimpleComponent for App {
}
AppInput::Cancel => self.cancel_auth(),
}
self.sync_busy();
}
}
impl App {
/// Spinner runs exactly while a greetd request is in flight. Driven from
/// one place (the end of `update`) so every path — submit, prompt,
/// cancel, error — stays in sync with `self.stage`.
fn sync_busy(&self) {
let busy = matches!(self.stage, Stage::Working | Stage::Starting);
if busy {
self.spinner.add_css_class("spinning");
} else {
self.spinner.remove_css_class("spinning");
}
}
/// One-shot shake on the card, matching the lock screen's wrong-password
/// motion. Re-armed each call by dropping the class first (a running
/// animation won't restart just from re-adding it).
fn flash_error(&self) {
self.card.remove_css_class("shake");
let card = self.card.clone();
gtk4::glib::timeout_add_local_once(std::time::Duration::from_millis(10), move || {
card.add_css_class("shake");
let card2 = card.clone();
gtk4::glib::timeout_add_local_once(std::time::Duration::from_millis(420), move || {
card2.remove_css_class("shake");
});
});
}
fn handle_submit(&mut self) {
if matches!(self.stage, Stage::Working | Stage::Starting) {
return;
@ -338,6 +378,7 @@ impl App {
AuthPrompt::Error(message) => {
self.status_lbl.add_css_class("error");
self.status_lbl.set_label(&message);
self.flash_error();
self.pam_status_held = true;
self.dispatch(greetd::Command::Respond(None));
}
@ -403,6 +444,7 @@ impl App {
self.status_lbl.remove_css_class("error");
} else {
self.status_lbl.add_css_class("error");
self.flash_error();
}
self.reset_to_username();
}

View file

@ -1,4 +1,14 @@
use bread_theme::{gtk as bgtk, ink_on, load_palette};
//! breadgreet's app stylesheet.
//!
//! Layered on top of `bread_theme`'s shared `@define-color` palette
//! (`@surface`, `@overlay`, `@accent`, `@red`, …) via `apply_shared()` +
//! `apply_app_css()`. The visual target is `design/sketch.html`'s
//! `.greetoverlay` section — the same design language as the lock screen:
//! a floating surface card over a cover-fit / Ken-Burns wallpaper, an
//! accent focus ring on the entry, a spinner while a request is in flight,
//! and a shake on a failed attempt.
use bread_theme::gtk as bgtk;
use gtk4::CssProvider;
use std::cell::RefCell;
@ -15,25 +25,99 @@ fn css_font_family(family: &str) -> String {
}
fn load_css(font_family: &str) -> String {
let p = load_palette();
let font = css_font_family(font_family);
format!(
"window.breadgreet {{ background-color: {bg}; color: {on_bg}; {font} }}\
.login-card {{ background: {surface}; color: {on_surface}; border-radius: 8px;\
padding: 20px; min-width: 320px; }}\
.login-clock {{ font-size: 48px; font-weight: bold; }}\
.login-date {{ font-size: 18px; font-weight: 500; opacity: 0.8; }}\
.login-entry {{ font-size: 14px; }}\
.login-status {{ font-size: 12px; opacity: 0.75; margin-top: 8px; }}\
.login-status.error {{ color: {red}; opacity: 1; }}\
.login-session {{ font-size: 12px; opacity: 0.85; margin-top: 12px; }}\
dropdown.login-session {{ min-height: 32px; }}\
.login-veil {{ background-image: linear-gradient(to bottom, rgba(0,0,0,0.34) 0%, rgba(0,0,0,0.16) 100%); }}",
bg = p.background,
surface = p.color0,
red = p.color1,
on_bg = ink_on(&p.background),
on_surface = ink_on(&p.color0),
// ---- window + wallpaper ----------------------------------------
"window.breadgreet {{ background-color: @bg; color: @on-bg; {font} }}\
.login-veil {{\
background-image: linear-gradient(to bottom,\
alpha(black, 0.42) 0%, alpha(black, 0.20) 45%, alpha(black, 0.34) 100%);\
}}\
\
/* ---- clock cluster (over the wallpaper) --------------------- */\
.login-clock {{\
font-size: 46px; font-weight: 700; color: white;\
text-shadow: 0 2px 12px alpha(black, 0.55);\
}}\
.login-date {{\
font-size: 14px; font-weight: 500; color: alpha(white, 0.82);\
text-shadow: 0 1px 8px alpha(black, 0.5);\
}}\
\
/* ---- the card --------------------------------------------- */\
.login-card {{\
background: @surface; color: @on-surface;\
border: 1px solid alpha(@overlay, 0.09);\
border-radius: 10px; padding: 22px;\
min-width: 300px;\
box-shadow: 0 6px 28px alpha(black, 0.5);\
}}\
.login-card.shake {{ animation: breadgreet-shake 380ms cubic-bezier(0.36, 0.07, 0.19, 0.97); }}\
\
/* ---- entry ----------------------------------------------- */\
.login-entry {{\
background: shade(@surface, 1.5); color: @on-surface;\
border: 1px solid alpha(@overlay, 0.14);\
border-radius: 7px; padding: 11px 14px; font-size: 14px;\
caret-color: @accent;\
transition: border-color 180ms ease, box-shadow 180ms ease;\
}}\
.login-entry:disabled {{ opacity: 0.55; }}\
.login-entry > text {{ background: transparent; }}\
.login-entry:focus-within {{\
border-color: @accent;\
box-shadow: 0 0 0 2px alpha(@accent, 0.28);\
outline: none;\
}}\
\
/* ---- status line --------------------------------------- */\
.login-status {{\
font-size: 12px; color: alpha(@on-surface, 0.72);\
margin-top: 10px; min-height: 1em;\
transition: color 160ms ease;\
}}\
.login-status.error {{ color: @red; opacity: 1; font-weight: 700; }}\
\
/* ---- spinner (shown while a request is in flight) ------ */\
.login-spinner {{\
min-width: 16px; min-height: 16px;\
margin-top: 12px;\
border: 2px solid alpha(@overlay, 0.15);\
border-top: 2px solid @accent;\
border-radius: 999px;\
opacity: 0;\
}}\
.login-spinner.spinning {{ opacity: 1; animation: breadgreet-spin 800ms linear infinite; }}\
\
/* ---- session picker (styled as a surface pill) -------- */\
.login-session {{\
margin-top: 14px; font-size: 12px;\
}}\
.login-session > button {{\
background: shade(@surface, 1.5); color: alpha(@on-surface, 0.9);\
border: 1px solid alpha(@overlay, 0.14);\
border-radius: 7px; padding: 9px 12px; min-height: 20px;\
}}\
.login-session > button:hover {{ border-color: alpha(@accent, 0.5); }}\
.login-session > button:focus-within {{\
border-color: @accent; box-shadow: 0 0 0 2px alpha(@accent, 0.28); outline: none;\
}}\
.login-session arrow {{ color: alpha(@on-surface, 0.6); min-height: 16px; min-width: 16px; }}\
.login-session popover > contents {{\
background: @surface; border: 1px solid alpha(@overlay, 0.12);\
border-radius: 8px; padding: 4px;\
}}\
.login-session popover row {{ border-radius: 6px; padding: 6px 10px; }}\
.login-session popover row:selected {{ background: alpha(@accent, 0.22); color: @on-surface; }}\
\
/* ---- keyframes --------------------------------------- */\
@keyframes breadgreet-spin {{ to {{ transform: rotate(360deg); }} }}\
@keyframes breadgreet-shake {{\
10%, 90% {{ transform: translateX(-2px); }}\
20%, 80% {{ transform: translateX(4px); }}\
30%, 50%, 70% {{ transform: translateX(-7px); }}\
40%, 60% {{ transform: translateX(7px); }}\
}}",
font = font,
)
}