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ComfyUI-Lora-Manager/static/js/components/loraModal/ShowcaseView.js

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/**
* ShowcaseView.js
* 处理LoRA模型展示内容图片、视频的功能模块
*/
import { showToast, copyToClipboard } from '../../utils/uiHelpers.js';
import { state } from '../../state/index.js';
import { NSFW_LEVELS } from '../../utils/constants.js';
/**
* Get the local URL for an example image if available
* @param {Object} img - Image object
* @param {number} index - Image index
* @param {string} modelHash - Model hash
* @returns {string|null} - Local URL or null if not available
*/
function getLocalExampleImageUrl(img, index, modelHash) {
if (!modelHash) return null;
// Get remote extension
const remoteExt = (img.url || '').split('?')[0].split('.').pop().toLowerCase();
// If it's a video (mp4), use that extension
if (remoteExt === 'mp4') {
return `/example_images_static/${modelHash}/image_${index + 1}.mp4`;
}
// For images, check if optimization is enabled (defaults to true)
const optimizeImages = state.settings.optimizeExampleImages !== false;
// Use .webp for images if optimization enabled, otherwise use original extension
const extension = optimizeImages ? 'webp' : remoteExt;
return `/example_images_static/${modelHash}/image_${index + 1}.${extension}`;
}
/**
* 渲染展示内容
* @param {Array} images - 要展示的图片/视频数组
* @param {string} modelHash - Model hash for identifying local files
* @returns {string} HTML内容
*/
export function renderShowcaseContent(images, modelHash) {
if (!images?.length) return '<div class="no-examples">No example images available</div>';
// Filter images based on SFW setting
const showOnlySFW = state.settings.show_only_sfw;
let filteredImages = images;
let hiddenCount = 0;
if (showOnlySFW) {
filteredImages = images.filter(img => {
const nsfwLevel = img.nsfwLevel !== undefined ? img.nsfwLevel : 0;
const isSfw = nsfwLevel < NSFW_LEVELS.R;
if (!isSfw) hiddenCount++;
return isSfw;
});
}
// Show message if no images are available after filtering
if (filteredImages.length === 0) {
return `
<div class="no-examples">
<p>All example images are filtered due to NSFW content settings</p>
<p class="nsfw-filter-info">Your settings are currently set to show only safe-for-work content</p>
<p>You can change this in Settings <i class="fas fa-cog"></i></p>
</div>
`;
}
// Show hidden content notification if applicable
const hiddenNotification = hiddenCount > 0 ?
`<div class="nsfw-filter-notification">
<i class="fas fa-eye-slash"></i> ${hiddenCount} ${hiddenCount === 1 ? 'image' : 'images'} hidden due to SFW-only setting
</div>` : '';
return `
<div class="scroll-indicator" onclick="toggleShowcase(this)">
<i class="fas fa-chevron-down"></i>
<span>Scroll or click to show ${filteredImages.length} examples</span>
</div>
<div class="carousel collapsed">
${hiddenNotification}
<div class="carousel-container">
${filteredImages.map((img, index) => {
// Try to get local URL for the example image
const localUrl = getLocalExampleImageUrl(img, index, modelHash);
// Create data attributes for both remote and local URLs
const remoteUrl = img.url;
const dataRemoteSrc = remoteUrl;
const dataLocalSrc = localUrl;
// 计算适当的展示高度:
// 1. 保持原始宽高比
// 2. 限制最大高度为视窗高度的60%
// 3. 确保最小高度为容器宽度的40%
const aspectRatio = (img.height / img.width) * 100;
const containerWidth = 800; // modal content的最大宽度
const minHeightPercent = 40; // 最小高度为容器宽度的40%
const maxHeightPercent = (window.innerHeight * 0.6 / containerWidth) * 100;
const heightPercent = Math.max(
minHeightPercent,
Math.min(maxHeightPercent, aspectRatio)
);
// Check if image should be blurred
const nsfwLevel = img.nsfwLevel !== undefined ? img.nsfwLevel : 0;
const shouldBlur = state.settings.blurMatureContent && nsfwLevel > NSFW_LEVELS.PG13;
// Determine NSFW warning text based on level
let nsfwText = "Mature Content";
if (nsfwLevel >= NSFW_LEVELS.XXX) {
nsfwText = "XXX-rated Content";
} else if (nsfwLevel >= NSFW_LEVELS.X) {
nsfwText = "X-rated Content";
} else if (nsfwLevel >= NSFW_LEVELS.R) {
nsfwText = "R-rated Content";
}
// Extract metadata from the image
const meta = img.meta || {};
const prompt = meta.prompt || '';
const negativePrompt = meta.negative_prompt || meta.negativePrompt || '';
const size = meta.Size || `${img.width}x${img.height}`;
const seed = meta.seed || '';
const model = meta.Model || '';
const steps = meta.steps || '';
const sampler = meta.sampler || '';
const cfgScale = meta.cfgScale || '';
const clipSkip = meta.clipSkip || '';
// Check if we have any meaningful generation parameters
const hasParams = seed || model || steps || sampler || cfgScale || clipSkip;
const hasPrompts = prompt || negativePrompt;
// If no metadata available, show a message
if (!hasParams && !hasPrompts) {
const metadataPanel = `
<div class="image-metadata-panel">
<div class="metadata-content">
<div class="no-metadata-message">
<i class="fas fa-info-circle"></i>
<span>No generation parameters available</span>
</div>
</div>
</div>
`;
if (img.type === 'video') {
return generateVideoWrapper(img, heightPercent, shouldBlur, nsfwText, metadataPanel, dataLocalSrc, dataRemoteSrc);
}
return generateImageWrapper(img, heightPercent, shouldBlur, nsfwText, metadataPanel, dataLocalSrc, dataRemoteSrc);
}
// Create a data attribute with the prompt for copying instead of trying to handle it in the onclick
// This avoids issues with quotes and special characters
const promptIndex = Math.random().toString(36).substring(2, 15);
const negPromptIndex = Math.random().toString(36).substring(2, 15);
// Create parameter tags HTML
const paramTags = `
<div class="params-tags">
${size ? `<div class="param-tag"><span class="param-name">Size:</span><span class="param-value">${size}</span></div>` : ''}
${seed ? `<div class="param-tag"><span class="param-name">Seed:</span><span class="param-value">${seed}</span></div>` : ''}
${model ? `<div class="param-tag"><span class="param-name">Model:</span><span class="param-value">${model}</span></div>` : ''}
${steps ? `<div class="param-tag"><span class="param-name">Steps:</span><span class="param-value">${steps}</span></div>` : ''}
${sampler ? `<div class="param-tag"><span class="param-name">Sampler:</span><span class="param-value">${sampler}</span></div>` : ''}
${cfgScale ? `<div class="param-tag"><span class="param-name">CFG:</span><span class="param-value">${cfgScale}</span></div>` : ''}
${clipSkip ? `<div class="param-tag"><span class="param-name">Clip Skip:</span><span class="param-value">${clipSkip}</span></div>` : ''}
</div>
`;
// Metadata panel HTML
const metadataPanel = `
<div class="image-metadata-panel">
<div class="metadata-content">
${hasParams ? paramTags : ''}
${!hasParams && !hasPrompts ? `
<div class="no-metadata-message">
<i class="fas fa-info-circle"></i>
<span>No generation parameters available</span>
</div>
` : ''}
${prompt ? `
<div class="metadata-row prompt-row">
<span class="metadata-label">Prompt:</span>
<div class="metadata-prompt-wrapper">
<div class="metadata-prompt">${prompt}</div>
<button class="copy-prompt-btn" data-prompt-index="${promptIndex}">
<i class="fas fa-copy"></i>
</button>
</div>
</div>
<div class="hidden-prompt" id="prompt-${promptIndex}" style="display:none;">${prompt}</div>
` : ''}
${negativePrompt ? `
<div class="metadata-row prompt-row">
<span class="metadata-label">Negative Prompt:</span>
<div class="metadata-prompt-wrapper">
<div class="metadata-prompt">${negativePrompt}</div>
<button class="copy-prompt-btn" data-prompt-index="${negPromptIndex}">
<i class="fas fa-copy"></i>
</button>
</div>
</div>
<div class="hidden-prompt" id="prompt-${negPromptIndex}" style="display:none;">${negativePrompt}</div>
` : ''}
</div>
</div>
`;
if (img.type === 'video') {
return generateVideoWrapper(img, heightPercent, shouldBlur, nsfwText, metadataPanel, dataLocalSrc, dataRemoteSrc);
}
return generateImageWrapper(img, heightPercent, shouldBlur, nsfwText, metadataPanel, dataLocalSrc, dataRemoteSrc);
}).join('')}
</div>
</div>
`;
}
/**
* 生成视频包装HTML
*/
function generateVideoWrapper(img, heightPercent, shouldBlur, nsfwText, metadataPanel, localUrl, remoteUrl) {
return `
<div class="media-wrapper ${shouldBlur ? 'nsfw-media-wrapper' : ''}" style="padding-bottom: ${heightPercent}%">
${shouldBlur ? `
<button class="toggle-blur-btn showcase-toggle-btn" title="Toggle blur">
<i class="fas fa-eye"></i>
</button>
` : ''}
<video controls autoplay muted loop crossorigin="anonymous"
referrerpolicy="no-referrer"
data-local-src="${localUrl || ''}"
data-remote-src="${remoteUrl}"
class="lazy ${shouldBlur ? 'blurred' : ''}">
<source data-local-src="${localUrl || ''}" data-remote-src="${remoteUrl}" type="video/mp4">
Your browser does not support video playback
</video>
${shouldBlur ? `
<div class="nsfw-overlay">
<div class="nsfw-warning">
<p>${nsfwText}</p>
<button class="show-content-btn">Show</button>
</div>
</div>
` : ''}
${metadataPanel}
</div>
`;
}
/**
* 生成图片包装HTML
*/
function generateImageWrapper(img, heightPercent, shouldBlur, nsfwText, metadataPanel, localUrl, remoteUrl) {
return `
<div class="media-wrapper ${shouldBlur ? 'nsfw-media-wrapper' : ''}" style="padding-bottom: ${heightPercent}%">
${shouldBlur ? `
<button class="toggle-blur-btn showcase-toggle-btn" title="Toggle blur">
<i class="fas fa-eye"></i>
</button>
` : ''}
<img data-local-src="${localUrl || ''}"
data-remote-src="${remoteUrl}"
alt="Preview"
crossorigin="anonymous"
referrerpolicy="no-referrer"
width="${img.width}"
height="${img.height}"
class="lazy ${shouldBlur ? 'blurred' : ''}">
${shouldBlur ? `
<div class="nsfw-overlay">
<div class="nsfw-warning">
<p>${nsfwText}</p>
<button class="show-content-btn">Show</button>
</div>
</div>
` : ''}
${metadataPanel}
</div>
`;
}
/**
* 切换展示区域的显示状态
*/
export function toggleShowcase(element) {
const carousel = element.nextElementSibling;
const isCollapsed = carousel.classList.contains('collapsed');
const indicator = element.querySelector('span');
const icon = element.querySelector('i');
carousel.classList.toggle('collapsed');
if (isCollapsed) {
const count = carousel.querySelectorAll('.media-wrapper').length;
indicator.textContent = `Scroll or click to hide examples`;
icon.classList.replace('fa-chevron-down', 'fa-chevron-up');
initLazyLoading(carousel);
// Initialize NSFW content blur toggle handlers
initNsfwBlurHandlers(carousel);
// Initialize metadata panel interaction handlers
initMetadataPanelHandlers(carousel);
} else {
const count = carousel.querySelectorAll('.media-wrapper').length;
indicator.textContent = `Scroll or click to show ${count} examples`;
icon.classList.replace('fa-chevron-up', 'fa-chevron-down');
// Make sure any open metadata panels get closed
const carouselContainer = carousel.querySelector('.carousel-container');
if (carouselContainer) {
carouselContainer.style.height = '0';
setTimeout(() => {
carouselContainer.style.height = '';
}, 300);
}
}
}
/**
* 初始化元数据面板交互处理
*/
function initMetadataPanelHandlers(container) {
// Find all media wrappers
const mediaWrappers = container.querySelectorAll('.media-wrapper');
mediaWrappers.forEach(wrapper => {
// Get the metadata panel and media element (img or video)
const metadataPanel = wrapper.querySelector('.image-metadata-panel');
const mediaElement = wrapper.querySelector('img, video');
if (!metadataPanel || !mediaElement) return;
// Add event listeners to the wrapper for mouse tracking
wrapper.addEventListener('mousemove', (e) => {
// Get mouse position relative to wrapper
const rect = wrapper.getBoundingClientRect();
const mouseX = e.clientX - rect.left;
const mouseY = e.clientY - rect.top;
// Get the actual displayed dimensions of the media element
const mediaRect = getRenderedMediaRect(mediaElement, rect.width, rect.height);
// Check if mouse is over the actual media content
const isOverMedia = (
mouseX >= mediaRect.left &&
mouseX <= mediaRect.right &&
mouseY >= mediaRect.top &&
mouseY <= mediaRect.bottom
);
// Show metadata panel only when over actual media content
if (isOverMedia) {
metadataPanel.classList.add('visible');
} else {
metadataPanel.classList.remove('visible');
}
});
wrapper.addEventListener('mouseleave', () => {
// Hide panel when mouse leaves the wrapper
metadataPanel.classList.remove('visible');
});
// Prevent events from the metadata panel from bubbling
metadataPanel.addEventListener('click', (e) => {
e.stopPropagation();
});
// Handle copy prompt button clicks
const copyBtns = metadataPanel.querySelectorAll('.copy-prompt-btn');
copyBtns.forEach(copyBtn => {
const promptIndex = copyBtn.dataset.promptIndex;
const promptElement = wrapper.querySelector(`#prompt-${promptIndex}`);
copyBtn.addEventListener('click', async (e) => {
e.stopPropagation(); // Prevent bubbling
if (!promptElement) return;
try {
await copyToClipboard(promptElement.textContent, 'Prompt copied to clipboard');
} catch (err) {
console.error('Copy failed:', err);
showToast('Copy failed', 'error');
}
});
});
// Prevent scrolling in the metadata panel from scrolling the whole modal
metadataPanel.addEventListener('wheel', (e) => {
const isAtTop = metadataPanel.scrollTop === 0;
const isAtBottom = metadataPanel.scrollHeight - metadataPanel.scrollTop === metadataPanel.clientHeight;
// Only prevent default if scrolling would cause the panel to scroll
if ((e.deltaY < 0 && !isAtTop) || (e.deltaY > 0 && !isAtBottom)) {
e.stopPropagation();
}
}, { passive: true });
});
}
/**
* Get the actual rendered rectangle of a media element with object-fit: contain
* @param {HTMLElement} mediaElement - The img or video element
* @param {number} containerWidth - Width of the container
* @param {number} containerHeight - Height of the container
* @returns {Object} - Rect with left, top, right, bottom coordinates
*/
function getRenderedMediaRect(mediaElement, containerWidth, containerHeight) {
// Get natural dimensions of the media
const naturalWidth = mediaElement.naturalWidth || mediaElement.videoWidth || mediaElement.clientWidth;
const naturalHeight = mediaElement.naturalHeight || mediaElement.videoHeight || mediaElement.clientHeight;
if (!naturalWidth || !naturalHeight) {
// Fallback if dimensions cannot be determined
return { left: 0, top: 0, right: containerWidth, bottom: containerHeight };
}
// Calculate aspect ratios
const containerRatio = containerWidth / containerHeight;
const mediaRatio = naturalWidth / naturalHeight;
let renderedWidth, renderedHeight, left = 0, top = 0;
// Apply object-fit: contain logic
if (containerRatio > mediaRatio) {
// Container is wider than media - will have empty space on sides
renderedHeight = containerHeight;
renderedWidth = renderedHeight * mediaRatio;
left = (containerWidth - renderedWidth) / 2;
} else {
// Container is taller than media - will have empty space top/bottom
renderedWidth = containerWidth;
renderedHeight = renderedWidth / mediaRatio;
top = (containerHeight - renderedHeight) / 2;
}
return {
left,
top,
right: left + renderedWidth,
bottom: top + renderedHeight
};
}
/**
* 初始化模糊切换处理
*/
function initNsfwBlurHandlers(container) {
// Handle toggle blur buttons
const toggleButtons = container.querySelectorAll('.toggle-blur-btn');
toggleButtons.forEach(btn => {
btn.addEventListener('click', (e) => {
e.stopPropagation();
const wrapper = btn.closest('.media-wrapper');
const media = wrapper.querySelector('img, video');
const isBlurred = media.classList.toggle('blurred');
const icon = btn.querySelector('i');
// Update the icon based on blur state
if (isBlurred) {
icon.className = 'fas fa-eye';
} else {
icon.className = 'fas fa-eye-slash';
}
// Toggle the overlay visibility
const overlay = wrapper.querySelector('.nsfw-overlay');
if (overlay) {
overlay.style.display = isBlurred ? 'flex' : 'none';
}
});
});
// Handle "Show" buttons in overlays
const showButtons = container.querySelectorAll('.show-content-btn');
showButtons.forEach(btn => {
btn.addEventListener('click', (e) => {
e.stopPropagation();
const wrapper = btn.closest('.media-wrapper');
const media = wrapper.querySelector('img, video');
media.classList.remove('blurred');
// Update the toggle button icon
const toggleBtn = wrapper.querySelector('.toggle-blur-btn');
if (toggleBtn) {
toggleBtn.querySelector('i').className = 'fas fa-eye-slash';
}
// Hide the overlay
const overlay = wrapper.querySelector('.nsfw-overlay');
if (overlay) {
overlay.style.display = 'none';
}
});
});
}
/**
* 初始化延迟加载
*/
function initLazyLoading(container) {
const lazyElements = container.querySelectorAll('.lazy');
const lazyLoad = (element) => {
const localSrc = element.dataset.localSrc;
const remoteSrc = element.dataset.remoteSrc;
// Check if element is an image or video
if (element.tagName.toLowerCase() === 'video') {
// Try local first, then remote
tryLocalOrFallbackToRemote(element, localSrc, remoteSrc);
} else {
// For images, we'll use an Image object to test if local file exists
tryLocalImageOrFallbackToRemote(element, localSrc, remoteSrc);
}
element.classList.remove('lazy');
};
// Try to load local image first, fall back to remote if local fails
const tryLocalImageOrFallbackToRemote = (imgElement, localSrc, remoteSrc) => {
// Only try local if we have a local path
if (localSrc) {
const testImg = new Image();
testImg.onload = () => {
// Local image loaded successfully
imgElement.src = localSrc;
};
testImg.onerror = () => {
// Local image failed, use remote
imgElement.src = remoteSrc;
};
// Start loading test image
testImg.src = localSrc;
} else {
// No local path, use remote directly
imgElement.src = remoteSrc;
}
};
// Try to load local video first, fall back to remote if local fails
const tryLocalOrFallbackToRemote = (videoElement, localSrc, remoteSrc) => {
// Only try local if we have a local path
if (localSrc) {
// Try to fetch local file headers to see if it exists
fetch(localSrc, { method: 'HEAD' })
.then(response => {
if (response.ok) {
// Local video exists, use it
videoElement.src = localSrc;
videoElement.querySelector('source').src = localSrc;
} else {
// Local video doesn't exist, use remote
videoElement.src = remoteSrc;
videoElement.querySelector('source').src = remoteSrc;
}
videoElement.load();
})
.catch(() => {
// Error fetching, use remote
videoElement.src = remoteSrc;
videoElement.querySelector('source').src = remoteSrc;
videoElement.load();
});
} else {
// No local path, use remote directly
videoElement.src = remoteSrc;
videoElement.querySelector('source').src = remoteSrc;
videoElement.load();
}
};
const observer = new IntersectionObserver((entries) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
lazyLoad(entry.target);
observer.unobserve(entry.target);
}
});
});
lazyElements.forEach(element => observer.observe(element));
}
/**
* 设置展示区域的滚动处理
*/
export function setupShowcaseScroll() {
// Add event listener to document for wheel events
document.addEventListener('wheel', (event) => {
// Find the active modal content
const modalContent = document.querySelector('#loraModal .modal-content');
if (!modalContent) return;
const showcase = modalContent.querySelector('.showcase-section');
if (!showcase) return;
const carousel = showcase.querySelector('.carousel');
const scrollIndicator = showcase.querySelector('.scroll-indicator');
if (carousel?.classList.contains('collapsed') && event.deltaY > 0) {
const isNearBottom = modalContent.scrollHeight - modalContent.scrollTop - modalContent.clientHeight < 100;
if (isNearBottom) {
toggleShowcase(scrollIndicator);
event.preventDefault();
}
}
}, { passive: false });
// Use MutationObserver instead of deprecated DOMNodeInserted
const observer = new MutationObserver((mutations) => {
for (const mutation of mutations) {
if (mutation.type === 'childList' && mutation.addedNodes.length) {
// Check if loraModal content was added
const loraModal = document.getElementById('loraModal');
if (loraModal && loraModal.querySelector('.modal-content')) {
setupBackToTopButton(loraModal.querySelector('.modal-content'));
}
}
}
});
// Start observing the document body for changes
observer.observe(document.body, { childList: true, subtree: true });
// Also try to set up the button immediately in case the modal is already open
const modalContent = document.querySelector('#loraModal .modal-content');
if (modalContent) {
setupBackToTopButton(modalContent);
}
}
/**
* 设置返回顶部按钮
*/
function setupBackToTopButton(modalContent) {
// Remove any existing scroll listeners to avoid duplicates
modalContent.onscroll = null;
// Add new scroll listener
modalContent.addEventListener('scroll', () => {
const backToTopBtn = modalContent.querySelector('.back-to-top');
if (backToTopBtn) {
if (modalContent.scrollTop > 300) {
backToTopBtn.classList.add('visible');
} else {
backToTopBtn.classList.remove('visible');
}
}
});
// Trigger a scroll event to check initial position
modalContent.dispatchEvent(new Event('scroll'));
}
/**
* 滚动到顶部
*/
export function scrollToTop(button) {
const modalContent = button.closest('.modal-content');
if (modalContent) {
modalContent.scrollTo({
top: 0,
behavior: 'smooth'
});
}
}