User:Arthurfragoso/ResizingDragBar.js

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This user script seems to have a documentation page at User:Arthurfragoso/ResizingDragBar.

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 // ==UserScript==
 // @name ResizingDragBar
 // @namespace https://en.wikipedia.org/wiki/User:Arthurfragoso/ResizingDragBar.js
 // @version 1.0
 // @description Add a draggable resizing bar to Wikipedia text areas.
 // @author Arthurfragoso
 // @match https://*.wikipedia.org/w/index.php?*action=*
 // @icon https://en.wikipedia.org/static/favicon/wikipedia.ico
 // @grant none
 // @run-at document-end
 // ==/UserScript==

 /*
  * Inspired by WikiEditor.
  * written with the help of ChatGPT
  *
  * */


 (asyncfunction(){
 'use strict';

 // Adds the WpExtnSideBySideEnabled CSS class to the HTML tag,
 // This allows for external scripts to check if it is enabled.
 // It also prevents two versions of the script to be run at the same time,
 // In case it is activated in Wikipedia and as a browser user script
 if(document.documentElement.classList.contains("WpExtnResizingDragBar")){
 return;
 }
 document.documentElement.classList.add("WpExtnResizingDragBar");

 // Function to add a draggable resizing bar
 functionaddResizingBar(textArea){
 constdragBar=document.createElement('div');
 dragBar.id='ext-ResizingDragBar';
 dragBar.style.width='100%';
 dragBar.style.height='10px';
 dragBar.style.cursor='row-resize';
 dragBar.style.backgroundColor='#ccc';

 // Insert the drag bar below the text area
 textArea.parentNode.insertBefore(dragBar,textArea.nextSibling);

 letisDragging=false;

 // Mouse events
 dragBar.addEventListener('mousedown',(e)=>{
 e.preventDefault();
 isDragging=true;
 document.body.style.userSelect='none';// Prevent text selection during drag
 });

 document.addEventListener('mousemove',(e)=>{
 if(!isDragging)return;

 constnewHeight=e.clientY-textArea.getBoundingClientRect().top;
 textArea.style.height=`${Math.max(newHeight,100)}px`;// Set a minimum height
 });

 document.addEventListener('mouseup',()=>{
 isDragging=false;
 document.body.style.userSelect='';// Restore text selection
 });
 }

 // Wait to check if WikiEditor is available
 setTimeout(()=>{
 // Only load if WikiEditor is not available, as it already has a RisizingBar.
 if(document.querySelector('.ext-WikiEditor-ResizingDragBar')){
 returnfalse;
 }
 consttextArea=document.querySelector('#wpTextbox1');// Wikipedia's editing textarea
 if(textArea){
 textArea.style.resize='none';// Disable default resizing
 textArea.style.overflow='auto';
 addResizingBar(textArea);
 }
 },1000);
 })();

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