Get the selected text along with text before and after the selection
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Этот скрипт недоступен для установки пользователем. Он является библиотекой, которая подключается к другим скриптам мета-ключом // @require https://update.greasyfork.org/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;
}