feat: implement banner service for managing notification banners, including UI integration and storage handling

static/css/components/banner.css

@@ -0,0 +1,245 @@
+/* Banner Container */
+.banner-container {
+    position: relative;
+    width: 100%;
+    z-index: calc(var(--z-header) - 1);
+    border-bottom: 1px solid var(--border-color);
+    background: var(--card-bg);
+    margin-bottom: var(--space-2);
+}
+
+/* Individual Banner */
+.banner-item {
+    position: relative;
+    padding: var(--space-2) var(--space-3);
+    background: linear-gradient(135deg, 
+        oklch(var(--lora-accent-l) var(--lora-accent-c) var(--lora-accent-h) / 0.05),
+        oklch(var(--lora-accent-l) var(--lora-accent-c) var(--lora-accent-h) / 0.02)
+    );
+    border-left: 4px solid var(--lora-accent);
+    animation: banner-slide-down 0.3s ease-in-out;
+}
+
+/* Banner Content Layout */
+.banner-content {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: var(--space-3);
+    max-width: 1400px;
+    margin: 0 auto;
+}
+
+/* Banner Text Section */
+.banner-text {
+    flex: 1;
+    min-width: 0;
+}
+
+.banner-title {
+    margin: 0 0 4px 0;
+    font-size: 1.1em;
+    font-weight: 600;
+    color: var(--text-color);
+    line-height: 1.3;
+}
+
+.banner-description {
+    margin: 0;
+    font-size: 0.9em;
+    color: var(--text-muted);
+    line-height: 1.4;
+}
+
+/* Banner Actions */
+.banner-actions {
+    display: flex;
+    align-items: center;
+    gap: var(--space-1);
+    flex-shrink: 0;
+}
+
+.banner-action {
+    display: inline-flex;
+    align-items: center;
+    gap: 6px;
+    padding: 6px 12px;
+    border-radius: var(--border-radius-xs);
+    text-decoration: none;
+    font-size: 0.85em;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    white-space: nowrap;
+    border: 1px solid transparent;
+}
+
+.banner-action i {
+    font-size: 0.9em;
+}
+
+/* Primary Action Button */
+.banner-action-primary {
+    background: var(--lora-accent);
+    color: white;
+    border-color: var(--lora-accent);
+}
+
+.banner-action-primary:hover {
+    background: oklch(calc(var(--lora-accent-l) - 5%) var(--lora-accent-c) var(--lora-accent-h));
+    transform: translateY(-1px);
+    box-shadow: 0 3px 6px oklch(var(--lora-accent) / 0.3);
+}
+
+/* Secondary Action Button */
+.banner-action-secondary {
+    background: var(--card-bg);
+    color: var(--text-color);
+    border-color: var(--border-color);
+}
+
+.banner-action-secondary:hover {
+    background: var(--lora-accent);
+    color: white;
+    border-color: var(--lora-accent);
+    transform: translateY(-1px);
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+/* Tertiary Action Button */
+.banner-action-tertiary {
+    background: transparent;
+    color: var(--lora-accent);
+    border-color: var(--lora-accent);
+}
+
+.banner-action-tertiary:hover {
+    background: var(--lora-accent);
+    color: white;
+    transform: translateY(-1px);
+}
+
+/* Dismiss Button */
+.banner-dismiss {
+    position: absolute;
+    top: 8px;
+    right: 8px;
+    width: 24px;
+    height: 24px;
+    border: none;
+    background: transparent;
+    color: var(--text-muted);
+    cursor: pointer;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: all 0.2s ease;
+    font-size: 0.8em;
+}
+
+.banner-dismiss:hover {
+    background: oklch(var(--lora-accent) / 0.1);
+    color: var(--lora-accent);
+    transform: scale(1.1);
+}
+
+/* Animations */
+@keyframes banner-slide-down {
+    from {
+        opacity: 0;
+        transform: translateY(-100%);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+@keyframes banner-slide-up {
+    from {
+        opacity: 1;
+        transform: translateY(0);
+        max-height: 200px;
+    }
+    to {
+        opacity: 0;
+        transform: translateY(-20px);
+        max-height: 0;
+        padding-top: 0;
+        padding-bottom: 0;
+    }
+}
+
+/* Responsive Design */
+@media (max-width: 768px) {
+    .banner-content {
+        flex-direction: column;
+        align-items: flex-start;
+        gap: var(--space-2);
+    }
+    
+    .banner-actions {
+        width: 100%;
+        flex-wrap: wrap;
+        justify-content: flex-start;
+    }
+    
+    .banner-action {
+        flex: 1;
+        min-width: 0;
+        justify-content: center;
+    }
+    
+    .banner-dismiss {
+        top: 6px;
+        right: 6px;
+    }
+    
+    .banner-item {
+        padding: var(--space-2);
+    }
+    
+    .banner-title {
+        font-size: 1em;
+    }
+    
+    .banner-description {
+        font-size: 0.85em;
+    }
+}
+
+@media (max-width: 480px) {
+    .banner-actions {
+        flex-direction: column;
+        width: 100%;
+    }
+    
+    .banner-action {
+        width: 100%;
+        justify-content: center;
+    }
+    
+    .banner-content {
+        gap: var(--space-1);
+    }
+}
+
+/* Dark theme adjustments */
+[data-theme="dark"] .banner-item {
+    background: linear-gradient(135deg, 
+        oklch(var(--lora-accent-l) var(--lora-accent-c) var(--lora-accent-h) / 0.08),
+        oklch(var(--lora-accent-l) var(--lora-accent-c) var(--lora-accent-h) / 0.03)
+    );
+}
+
+/* Prevent text selection */
+.banner-item,
+.banner-title,
+.banner-description,
+.banner-action,
+.banner-dismiss {
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+}

static/css/style.css

@@ -6,6 +6,7 @@
 
 /* Import Components */
 @import 'components/header.css';
+@import 'components/banner.css';
 @import 'components/card.css';
 @import 'components/modal/_base.css';
 @import 'components/modal/delete-modal.css';

static/js/core.js

@@ -7,6 +7,7 @@ import { HeaderManager } from './components/Header.js';
 import { settingsManager } from './managers/SettingsManager.js';
 import { exampleImagesManager } from './managers/ExampleImagesManager.js';
 import { helpManager } from './managers/HelpManager.js';
+import { bannerService } from './managers/BannerService.js';
 import { showToast, initTheme, initBackToTop } from './utils/uiHelpers.js';
 import { initializeInfiniteScroll } from './utils/infiniteScroll.js';
 import { migrateStorageItems } from './utils/storageHelpers.js';
@@ -27,6 +28,7 @@ export class AppCore {
         state.loadingManager = new LoadingManager();
         modalManager.initialize();
         updateService.initialize();
+        bannerService.initialize();
         window.modalManager = modalManager;
         window.settingsManager = settingsManager;
         window.exampleImagesManager = exampleImagesManager;

static/js/managers/BannerService.js

@@ -0,0 +1,176 @@
+import { getStorageItem, setStorageItem } from '../utils/storageHelpers.js';
+
+/**
+ * Banner Service for managing notification banners
+ */
+class BannerService {
+    constructor() {
+        this.banners = new Map();
+        this.container = null;
+        this.initialized = false;
+    }
+
+    /**
+     * Initialize the banner service
+     */
+    initialize() {
+        if (this.initialized) return;
+
+        this.container = document.getElementById('banner-container');
+        if (!this.container) {
+            console.warn('Banner container not found');
+            return;
+        }
+
+        // Register default banners
+        this.registerBanner('civitai-extension', {
+            id: 'civitai-extension',
+            title: 'New Tool Available: LM Civitai Extension!',
+            content: 'LM Civitai Extension is a browser extension designed to work seamlessly with LoRA Manager to significantly enhance your Civitai browsing experience! See which models you already have, download new ones with a single click, and manage your downloads efficiently.',
+            actions: [
+                {
+                    text: 'Chrome Web Store',
+                    icon: 'fab fa-chrome',
+                    url: 'https://chromewebstore.google.com/detail/capigligggeijgmocnaflanlbghnamgm?utm_source=item-share-cb',
+                    type: 'secondary'
+                },
+                {
+                    text: 'Firefox Extension',
+                    icon: 'fab fa-firefox-browser',
+                    url: 'https://github.com/willmiao/lm-civitai-extension-firefox/releases/latest/download/extension.xpi',
+                    type: 'secondary'
+                },
+                {
+                    text: 'Read more...',
+                    icon: 'fas fa-book',
+                    url: 'https://github.com/willmiao/ComfyUI-Lora-Manager/wiki/LoRA-Manager-Civitai-Extension-(Chrome-Extension)',
+                    type: 'tertiary'
+                }
+            ],
+            dismissible: true,
+            priority: 1
+        });
+
+        this.showActiveBanners();
+        this.initialized = true;
+    }
+
+    /**
+     * Register a new banner
+     * @param {string} id - Unique banner ID
+     * @param {Object} bannerConfig - Banner configuration
+     */
+    registerBanner(id, bannerConfig) {
+        this.banners.set(id, bannerConfig);
+    }
+
+    /**
+     * Check if a banner has been dismissed
+     * @param {string} bannerId - Banner ID
+     * @returns {boolean}
+     */
+    isBannerDismissed(bannerId) {
+        const dismissedBanners = getStorageItem('dismissed_banners', []);
+        return dismissedBanners.includes(bannerId);
+    }
+
+    /**
+     * Dismiss a banner
+     * @param {string} bannerId - Banner ID
+     */
+    dismissBanner(bannerId) {
+        const dismissedBanners = getStorageItem('dismissed_banners', []);
+        if (!dismissedBanners.includes(bannerId)) {
+            dismissedBanners.push(bannerId);
+            setStorageItem('dismissed_banners', dismissedBanners);
+        }
+
+        // Remove banner from DOM
+        const bannerElement = document.querySelector(`[data-banner-id="${bannerId}"]`);
+        if (bannerElement) {
+            bannerElement.style.animation = 'banner-slide-up 0.3s ease-in-out forwards';
+            setTimeout(() => {
+                bannerElement.remove();
+                this.updateContainerVisibility();
+            }, 300);
+        }
+    }
+
+    /**
+     * Show all active (non-dismissed) banners
+     */
+    showActiveBanners() {
+        if (!this.container) return;
+
+        const activeBanners = Array.from(this.banners.values())
+            .filter(banner => !this.isBannerDismissed(banner.id))
+            .sort((a, b) => (b.priority || 0) - (a.priority || 0));
+
+        activeBanners.forEach(banner => {
+            this.renderBanner(banner);
+        });
+
+        this.updateContainerVisibility();
+    }
+
+    /**
+     * Render a banner to the DOM
+     * @param {Object} banner - Banner configuration
+     */
+    renderBanner(banner) {
+        const bannerElement = document.createElement('div');
+        bannerElement.className = 'banner-item';
+        bannerElement.setAttribute('data-banner-id', banner.id);
+
+        const actionsHtml = banner.actions ? banner.actions.map(action => 
+            `<a href="${action.url}" target="_blank" class="banner-action banner-action-${action.type}" rel="noopener noreferrer">
+                <i class="${action.icon}"></i>
+                <span>${action.text}</span>
+            </a>`
+        ).join('') : '';
+
+        const dismissButtonHtml = banner.dismissible ? 
+            `<button class="banner-dismiss" onclick="bannerService.dismissBanner('${banner.id}')" title="Dismiss">
+                <i class="fas fa-times"></i>
+            </button>` : '';
+
+        bannerElement.innerHTML = `
+            <div class="banner-content">
+                <div class="banner-text">
+                    <h4 class="banner-title">${banner.title}</h4>
+                    <p class="banner-description">${banner.content}</p>
+                </div>
+                <div class="banner-actions">
+                    ${actionsHtml}
+                </div>
+            </div>
+            ${dismissButtonHtml}
+        `;
+
+        this.container.appendChild(bannerElement);
+    }
+
+    /**
+     * Update container visibility based on active banners
+     */
+    updateContainerVisibility() {
+        if (!this.container) return;
+
+        const hasActiveBanners = this.container.children.length > 0;
+        this.container.style.display = hasActiveBanners ? 'block' : 'none';
+    }
+
+    /**
+     * Clear all dismissed banners (for testing/admin purposes)
+     */
+    clearDismissedBanners() {
+        setStorageItem('dismissed_banners', []);
+        location.reload();
+    }
+}
+
+// Create and export singleton instance
+export const bannerService = new BannerService();
+
+// Make it globally available
+window.bannerService = bannerService;

static/js/utils/storageHelpers.js

@@ -141,7 +141,8 @@ export function migrateStorageItems() {
         'recipes_search_prefs',
         'checkpoints_search_prefs',
         'show_update_notifications',
-        'last_update_check'
+        'last_update_check',
+        'dismissed_banners'
     ];
     
     // Migrate each known key

templates/base.html

@@ -82,6 +82,11 @@
         </button>
 
         <div class="container">
+            <!-- Banner component -->
+            <div id="banner-container" class="banner-container" style="display: none;">
+                <!-- Banners will be dynamically inserted here -->
+            </div>
+
             {% if is_initializing %}
                 <!-- Show initialization component when initializing -->
                 {% include 'components/initialization.html' %}