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Highlight thumbnails of works on nhentai.net based on tags you decide to highlight.
// ==UserScript==
// @name NHentai Tag Highlighter
// @namespace https://github.com/erasels
// @version 3.1
// @description Highlight thumbnails of works on nhentai.net based on tags you decide to highlight.
// @author erasels
// @match *://nhentai.net/*
// @icon https://nhentai.net/favicon.ico
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_deleteValue
// @grant GM_listValues
// @grant GM_addStyle
// @license MIT
// @supportURL https://sleazyfork.org/en/scripts/495767-nhentai-tag-highlighter
// ==/UserScript==
(function() {
'use strict';
const highlightCutoffThreshold = 0; // Prevents rendering more than this many tags on an item if this is > 0
// If no priority is defined for a tag in tagDetails, it'll use this
const defaultPriority = 10;
// Colors
const removeHighlightColor = '#AD2204';
const addHighlightColor = '#0A900A';
// Retrieve tags from storage or set default if not present
const tagDetails = {};
const tagKeys = GM_listValues();
tagKeys.forEach(key => {
if (key.startsWith('tag_')) {
const tagId = key.slice(4);
tagDetails[tagId] = GM_getValue(key);
}
});
// Modal dialogue style
GM_addStyle(`
#tag-modal {
display: none;
position: fixed;
z-index: 1000;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 300px;
padding: 20px;
background-color: #2b2b2b;
color: #fff;
border: 1px solid #444;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
border-radius: 5px;
}
#tag-modal label {
display: block;
margin-bottom: 5px;
color: #fff;
}
#tag-modal input[type="text"],
#tag-modal input[type="number"],
#tag-modal input[type="color"] {
width: calc(100% - 10px);
margin-bottom: 10px;
padding: 5px;
background-color: #444;
color: #fff;
border: 1px solid #555;
border-radius: 3px;
}
#tag-modal button {
margin-right: 10px;
background-color: #555;
color: #fff;
border: none;
padding: 5px 10px;
border-radius: 3px;
cursor: pointer;
}
#tag-modal button:hover {
background-color: #666;
}
#modal-overlay {
display: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
z-index: 999;
}
#existing-tags-container {
margin-top: 20px;
}
#existing-tags-list {
max-height: 150px;
overflow-y: auto;
background-color: #333;
padding: 10px;
border: 1px solid #444;
border-radius: 5px;
}
#existing-tags-list div {
margin-bottom: 5px;
}
`);
// Create the modal dialog HTML (the thing that shows up when you click the highlight tag button)
const modalHtml = `
<div id="modal-overlay"></div>
<div id="tag-modal">
<label for="tag-name">Tag Name:</label>
<input type="text" id="tag-name">
<label for="tag-priority">Priority:</label>
<input type="number" id="tag-priority" value="10">
<label for="tag-color">Color:</label>
<input type="color" id="tag-color" value="#32a852">
<button id="save-tag">Save</button>
<button id="cancel-tag">Cancel</button>
<div id="existing-tags-container">
<h3>Existing Tags</h3>
<div id="existing-tags-list"></div>
</div>
</div>
`;
const modalContainer = document.createElement('div');
modalContainer.innerHTML = modalHtml;
document.body.appendChild(modalContainer);
// SVG graphic for the star icon
const starIcon = `
<svg width="18" height="18" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M12 17.27L18.18 21L16.54 13.97L22 9.24L14.81 8.62L12 2L9.19 8.62L2 9.24L7.46 13.97L5.82 21L12 17.27Z" fill="currentColor"/>
</svg>
`;
// Add style for hover effect
GM_addStyle(`
.addTagButton:hover div {
color: gold;
}`);
function updateButtonAppearance(button, isHighlighted) {
if (isHighlighted) {
button.style.color = removeHighlightColor;
button.setAttribute('title', 'Remove Highlight');
} else {
button.style.color = addHighlightColor;
button.setAttribute('title', 'Add Highlight');
}
}
function updateTagContainerAppearance(tagContainer, tagId, isHighlighted) {
if (isHighlighted && tagDetails[tagId]) {
tagContainer.style.outline = `2px solid ${tagDetails[tagId].color}`;
tagContainer.style.outlineOffset = '-2px'; // Ensure the outline is within the border
tagContainer.style.borderRadius = '5px';
} else {
tagContainer.style.outline = 'none';
}
}
// Converts the old way of saving tag highlights to the new way
function convertTagDetailsToIndividualEntries() {
const existingTagDetails = GM_getValue('tagDetails', null);
if(existingTagDetails !== null) {
console.log("Converting old saves to new ones.");
// Iterate over each entry in the existing tagDetails object
for (const [tagId, tagDetail] of Object.entries(existingTagDetails)) {
// Save each tag individually
GM_setValue(`tag_${tagId}`, tagDetail);
}
// delete the old tagDetails entry to avoid confusion
GM_deleteValue('tagDetails');
}
}
// Process items to see if they require additional logic
function processItem(item) {
const dataTags = item.getAttribute('data-tags').split(' ').map(Number);
const matchingTags = dataTags.filter(tag => tag in tagDetails);
if (matchingTags.length > 0) {
// Insert functions that take matched items here
highlightDotItem(item, matchingTags);
}
}
// Log item name and matched tags
function logItem(item, matchingTags) {
const itemName = item.querySelector('.caption').innerText;
const matchedTagNames = matchingTags.map(tag => tagDetails[tag].name).join(', ');
console.log(`${itemName}: ${matchedTagNames}`);
}
// Highlight item with dots based on matched tags
function highlightDotItem(item, matchingTags) {
// Ensure the parent element is positioned relative for the dots to be positioned correctly
item.style.position = 'relative';
// Sort matching tags by priority, higher first
matchingTags.sort((a, b) => {
const priorityA = tagDetails[a]?.priority ?? defaultPriority;
const priorityB = tagDetails[b]?.priority ?? defaultPriority;
return priorityB - priorityA;
});
let tagHighlightAmt = matchingTags.length;
if(highlightCutoffThreshold > 0) {
tagHighlightAmt = Math.min(highlightCutoffThreshold, tagHighlightAmt);
}
for (let i = 0; i < tagHighlightAmt; i++) {
const tag = matchingTags[i];
const tagDetail = tagDetails[tag];
if (tagDetail) {
const dotContainer = document.createElement('div');
dotContainer.style.display = 'flex';
dotContainer.style.alignItems = 'center';
dotContainer.style.position = 'absolute';
dotContainer.style.top = `${5 + i * 20}px`;
dotContainer.style.left = '5px';
dotContainer.style.backgroundColor = 'rgba(0, 0, 0, 0.66)';
dotContainer.style.padding = '1px 5px';
dotContainer.style.borderRadius = '5px';
dotContainer.style.pointerEvents = 'none'; // Make the container ignore mouse events
const dot = document.createElement('div');
dot.style.width = '15px';
dot.style.height = '15px';
dot.style.backgroundColor = tagDetail.color;
dot.style.borderRadius = '50%';
dot.style.marginRight = '5px';
const tagName = document.createElement('span');
tagName.innerText = tagDetail.name;
tagName.style.color = '#fff';
tagName.style.fontSize = '12px';
dotContainer.appendChild(dot);
dotContainer.appendChild(tagName);
// Calculate if the dot container's bottom would exceed the item's height
const potentialBottomPosition = parseInt(dotContainer.style.top, 10);
if (potentialBottomPosition <= item.offsetHeight) {
// Only append the dot container if it doesn't exceed the item's boundary
item.appendChild(dotContainer);
} else {
break;
}
}
}
}
// Function to create a new button for each tag
function addTagButtons() {
const tags = document.querySelectorAll('.tag');
tags.forEach(tag => {
const match = tag.className.match(/tag-(\d+)/);
if (match) {
const tagId = match[1];
const buttonContainer = tag.querySelector('.count');
if (buttonContainer) {
const addButton = document.createElement('div');
addButton.classList.add('addTagButton');
addButton.setAttribute('alt', 'add-tag');
addButton.style.cursor = 'pointer';
addButton.style.display = 'inline-block';
const addButtonIcon = document.createElement('div');
addButtonIcon.innerHTML = starIcon;
addButtonIcon.style.width = '18px';
addButtonIcon.style.height = '18px';
const isHighlighted = tagId in tagDetails;
updateButtonAppearance(addButton, isHighlighted);
updateTagContainerAppearance(tag, tagId, isHighlighted);
addButton.appendChild(addButtonIcon);
buttonContainer.appendChild(addButton);
addButton.addEventListener('click', (event) => {
event.preventDefault(); // Prevent default behavior
toggleTagPopup(tagId, tag.querySelector('.name').innerText, addButton, tag);
});
}
}
});
}
// Function to toggle the popup for adding tag details
function toggleTagPopup(tagId, tagName, button, tagContainer) {
const tagModal = document.getElementById('tag-modal');
const modalOverlay = document.getElementById('modal-overlay');
const existingTagsList = document.getElementById('existing-tags-list');
// Populate existing tags list sorted by priority
existingTagsList.innerHTML = '';
const sortedTagDetails = Object.entries(tagDetails).sort((a, b) => {
const priorityA = a[1].priority ?? defaultPriority;
const priorityB = b[1].priority ?? defaultPriority;
return priorityB - priorityA;
});
for (const [id, details] of sortedTagDetails) {
const tagItem = document.createElement('div');
tagItem.innerHTML = `
<span style="color: ${details.color};">${details.name}</span>
<span> (${details.priority})</span>`;
existingTagsList.appendChild(tagItem);
}
if (tagDetails[tagId]) {
// If the tag is already added, remove it
delete tagDetails[tagId];
GM_deleteValue(`tag_${tagId}`);
updateButtonAppearance(button, false);
updateTagContainerAppearance(tagContainer, tagId, false);
} else {
// Show the modal dialog
document.getElementById('tag-name').value = tagName;
document.getElementById('tag-priority').value = defaultPriority;
document.getElementById('tag-color').value = '#32a852';
tagModal.style.display = 'block';
modalOverlay.style.display = 'block';
// Handle save button click
document.getElementById('save-tag').onclick = () => {
const newTagName = document.getElementById('tag-name').value;
const priority = parseInt(document.getElementById('tag-priority').value);
const color = document.getElementById('tag-color').value;
if (newTagName && !isNaN(priority)) {
tagDetails[tagId] = { name: newTagName, color: color, priority: priority };
GM_setValue(`tag_${tagId}`, tagDetails[tagId]);
updateButtonAppearance(button, true);
updateTagContainerAppearance(tagContainer, tagId, true);
}
// Hide the modal dialog
tagModal.style.display = 'none';
modalOverlay.style.display = 'none';
};
// Handle cancel button click
document.getElementById('cancel-tag').onclick = () => {
// Hide the modal dialog
tagModal.style.display = 'none';
modalOverlay.style.display = 'none';
};
}
}
// Function to observe new nodes (required for NH Imporved infinite load compatibility)
function observeNewNodes(mutations) {
mutations.forEach(mutation => {
mutation.addedNodes.forEach(node => {
if (node.nodeType === 1 && node.classList.contains('gallery')) {
processItem(node);
} else if (node.nodeType === 1) {
node.querySelectorAll('.gallery').forEach(item => {
processItem(item);
});
}
});
});
}
// Initial function to set up the script
function init() {
//convertTagDetailsToIndividualEntries();
addTagButtons();
const observer = new MutationObserver(observeNewNodes);
observer.observe(document.body, { childList: true, subtree: true });
const galleryItems = document.querySelectorAll('.gallery');
galleryItems.forEach(item => {
processItem(item);
});
}
init();
})();