Files
notedeck/crates/notedeck_ui
kernelkind 72d696beb2 actionbar: reintroduce error messages
there was a regression that caused error messages to not be displayed
any more when zapping.

Now when you click the zap button and the zap fails for some reason, the
zap button will be replaced with an X and hovering over the X displays
the error message

Signed-off-by: kernelkind <kernelkind@gmail.com>
2025-08-31 19:34:51 -04:00
..
2025-07-16 11:17:13 -07:00
2025-08-31 19:34:51 -04:00
2025-07-28 08:57:57 -07:00

NoteDeck UI

UI component library for NoteDeck - a Nostr client built with EGUI.

Overview

The notedeck_ui crate provides a set of reusable UI components for building a Nostr client. It offers consistent styling, behavior, and rendering of Nostr-specific elements like notes, profiles, mentions, and media content.

This library is built on top of egui, a simple, fast, and highly portable immediate mode GUI library for Rust.

Features

  • 📝 Note display with rich content, media, and interactions
  • 👤 Profile components (display name, pictures, banners)
  • 🔗 Mention system with hover previews
  • 🖼️ Image handling with caching and lazy loading
  • 📺 GIF playback support
  • 💸 Zap interactions (Bitcoin Lightning tips)
  • 🎨 Theming and consistent styling

Components

Notes

The NoteView widget is the core component for displaying Nostr notes:

// Example: Render a note
let mut note_view = NoteView::new(
    note_context,
    current_account,
    &note, 
    NoteOptions::default()
);

ui.add(&mut note_view);

NoteView supports various display options:

// Create a preview style note
note_view
    .preview_style()       // Apply preview styling
    .textmode(true)        // Use text-only mode
    .actionbar(false)      // Hide action bar
    .small_pfp(true)       // Use small profile picture
    .note_previews(false)  // Disable nested note previews
    .show(ui);

Profiles

Profile components include profile pictures, banners, and display names:

// Display a profile picture
ui.add(ProfilePic::new(images_cache, profile_picture_url).size(48.0));

// Display a profile preview
ui.add(ProfilePreview::new(profile_record, images_cache));

Mentions

The mention component links to user profiles:

// Display a mention with hover preview
let mention_response = Mention::new(ndb, img_cache, txn, pubkey)
    .size(16.0)            // Set text size
    .selectable(true)      // Allow selection
    .show(ui);

// Handle click actions
if let Some(action) = mention_response.inner {
    // Handle profile navigation
}

Media

Support for images, GIFs, and other media types:

// Render an image
render_images(
    ui,
    img_cache,
    image_url,
    ImageType::Content,
    cache_type,
    on_loading_callback,
    on_error_callback,
    on_success_callback
);

Styling

The UI components adapt to the current theme (light/dark mode) and use consistent styling defined in the colors.rs module:

// Color constants
pub const ALMOST_WHITE: Color32 = Color32::from_rgb(0xFA, 0xFA, 0xFA);
pub const MID_GRAY: Color32 = Color32::from_rgb(0xbd, 0xbd, 0xbd);
pub const PINK: Color32 = Color32::from_rgb(0xE4, 0x5A, 0xC9);
pub const TEAL: Color32 = Color32::from_rgb(0x77, 0xDC, 0xE1);

Dependencies

This crate depends on:

  • egui - Core UI library
  • egui_extras - Additional widgets and functionality
  • ehttp - HTTP client for fetching content
  • nostrdb - Nostr database and types
  • enostr - Nostr protocol implementation
  • image - Image processing library
  • poll-promise - Async promise handling
  • tokio - Async runtime