Get the selected text along with text before and after the selection
Tính đến
Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta
// @require https://update.greatest.deepsurf.us/scripts/528822/1547501/Selection%20Context.js
// ==UserScript==
// @name Selection Context
// @namespace http://tampermonkey.net/
// @version 0.1.0
// @description Get the selected text along with text before and after the selection
// @author RoCry
// @license MIT
// ==/UserScript==
/**
* Gets the selected text along with text before and after the selection
* @returns {Object} Object containing selectedText, textBefore, and textAfter
*/
function GetSelectionContext() {
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0 || selection.toString().trim() === '') {
return { selectedText: null, textBefore: null, textAfter: null, paragraphText: null };
}
const selectedText = selection.toString().trim();
// Get the range of the current selection
const range = selection.getRangeAt(0);
// Get the paragraph containing the selection
let paragraphElement = range.commonAncestorContainer;
// Navigate up to find a paragraph or meaningful content container
while (paragraphElement &&
(paragraphElement.nodeType !== Node.ELEMENT_NODE ||
!['P', 'DIV', 'ARTICLE', 'SECTION', 'LI'].includes(paragraphElement.tagName))) {
paragraphElement = paragraphElement.parentNode;
}
// Get the paragraph text
let paragraphText = '';
if (paragraphElement) {
paragraphText = paragraphElement.textContent.trim();
if (paragraphText.length > 500) {
paragraphText = paragraphText.substring(0, 497) + '...';
}
}
// Create ranges for text before and after selection
let textBefore = '';
let textAfter = '';
try {
// Get text before selection
const beforeRange = range.cloneRange();
beforeRange.setStart(paragraphElement || document.body, 0);
beforeRange.setEnd(range.startContainer, range.startOffset);
textBefore = beforeRange.toString().trim();
// Get text after selection
const afterRange = range.cloneRange();
afterRange.setStart(range.endContainer, range.endOffset);
afterRange.setEnd(paragraphElement || document.body, paragraphElement ? paragraphElement.childNodes.length : document.body.childNodes.length);
textAfter = afterRange.toString().trim();
// Limit the length of before/after text to be reasonable
if (textBefore.length > 250) {
textBefore = '...' + textBefore.substring(textBefore.length - 250);
}
if (textAfter.length > 250) {
textAfter = textAfter.substring(0, 250) + '...';
}
} catch (e) {
console.error('Error getting text before/after selection:', e);
}
return { selectedText, textBefore, textAfter, paragraphText };
}
// Export the function for use in other scripts
if (typeof module !== 'undefined' && module.exports) {
module.exports = { GetSelectionContext };
} else {
// For direct browser use
window.SelectionUtils = window.SelectionUtils || {};
window.SelectionUtils.GetSelectionContext = GetSelectionContext;
}