// ==UserScript==
// @name OzBargain Markdown Toolbar
// @namespace nategasm
// @version 1.22
// @description Displays a Markdown toolbar for textboxes on OzBargain and ChoiceCheapies
// @author wOxxOm, darkred, nategasm
// @license MIT
// @include https://www.ozbargain.com.au/deals/submit
// @include https://www.ozbargain.com.au/node/*
// @include https://www.ozbargain.com.au/comment/edit/*
// @include https://www.ozbargain.com.au/privatemsg/*
// @include https://www.cheapies.nz/deals/submit
// @include https://www.cheapies.nz/node/*
// @include https://www.cheapies.nz/comment/edit/*
// @include https://www.cheapies.nz/privatemsg/*
// @icon https://www.ozbargain.com.au/favicon.ico
// @grant GM_addStyle
// ==/UserScript==
//Add button styles
GM_addStyle(`
.mdBtn {
display: inline-block;
cursor: pointer;
margin: 0 0.5px 4px 0.5px;
padding: 4px;
background: var(--input-bg);
border: 1px solid #999;
border-radius: 2px;
white-space: pre;
box-shadow: 0px 1px 0px #FFF inset, 0px -1px 2px #BBB inset;
color: var(--page-fg);
user-select: none;
}
.mdBtn:hover {
background: var(--shade3-bg) !important;
color: #fff !important;
}
.mdBtn svg {
vertical-align: middle;
pointer-events: none;
}
.qtBtn {
font-weight: bold;
position: fixed;
display: none;
line-height: 100%;
padding: 3px 5px;
border: var(--shade3-bg) solid 2px;
opacity: 85%;
user-select: none;
}
.qtBtn:hover {
opacity: 100%;
}
`);
//Add toolbar to main preloaded textboxes
const textarea = document.querySelector('textarea');
if (textarea) {
addFeatures(textarea.parentNode);
} else {
return;
}
//Add more features to nodes
if (location.href.indexOf('/node/') > 0) {
//Observe and add toolbar to expanded reply boxes
let targetNode = document.querySelectorAll(".comment.level0"); //Need All to capture pinned comments
let callback = (mutationList, observer) => {
for (const mutation of mutationList) {
if (mutation.addedNodes.length > 0 && mutation.addedNodes[0].className === "comment" && mutation.addedNodes[0].nodeName === "FORM") {
addFeatures(mutation.addedNodes[0].querySelector('textarea').parentNode);
}
}
};
let observer = new MutationObserver(callback);
for (let i = 0; i < targetNode.length; i++) {
observer.observe(targetNode[i], {attributes: false, childList: true, subtree: true});
}
//Add quote button to node content
let node = document.querySelector('.node:not(.messages)');
if (node) {
let a = document.createElement('a');
a.className = 'btn qtBtn';
a.innerHTML = 'Quote Selection';
a.addEventListener('click',
function(e){edPrefixTag('>', true, edInit(e.target,'>'));});
a.addEventListener('mousedown',function(e){event.preventDefault()});
node.textAreaNode = textarea;
node.appendChild(a);
['mouseup', 'touchend'].forEach(function(e) {
node.addEventListener(e, (event) => {
let selectedText = getSelectionText().trim();
if (selectedText.length > 0) {
const range = window.getSelection().getRangeAt(0);
const rect = range.getBoundingClientRect();
//Position the button near the selection
a.style.top = `${event.clientY + 20}px`;
a.style.left = `${event.clientX - 65}px`;
a.style.display = 'inline-block';
} else {
a.style.display = 'none';
}
});
});
document.addEventListener("selectionchange", () => {
//Remove button if unselected
if (getSelectionText().length === 0) {
a.style.display = 'none';
}
});
}
}
function addFeatures(n) {
n.textAreaNode = n.querySelector('textarea');
const ctrlKey = isMacOS() ? 'Cmd' : 'Ctrl';
//Add buttons
btnMake(n, '<b>B</b>', 'Bold ('+ctrlKey+'+B)', '**', '', false, false, false, 'b',
'M4 2h4.5a3.501 3.501 0 0 1 2.852 5.53A3.499 3.499 0 0 1 9.5 14H4a1 1 0 0 1-1-1V3a1 1 0 0 1 1-1Zm1 7v3h4.5a1.5 1.5 0 0 0 0-3Zm3.5-2a1.5 1.5 0 0 0 0-3H5v3Z');
btnMake(n, '<i>I </i>', 'Italic ('+ctrlKey+'+I)', '*', '', false, false, false, 'i',
'M6 2.75A.75.75 0 0 1 6.75 2h6.5a.75.75 0 0 1 0 1.5h-2.505l-3.858 9H9.25a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.505l3.858-9H6.75A.75.75 0 0 1 6 2.75Z');
btnMake(n, '<s>S</s>', 'Strikethrough ('+ctrlKey+'+`)', '~~', '', false, false, false, '`',
'M6.333 5.686c0 .31.083.581.27.814H5.166a2.8 2.8 0 0 1-.099-.76c0-1.627 1.436-2.768 3.48-2.768 1.969 0 3.39 1.175 3.445 2.85h-1.23c-.11-1.08-.964-1.743-2.25-1.743-1.23 0-2.18.602-2.18 1.607zm2.194 7.478c-2.153 0-3.589-1.107-3.705-2.81h1.23c.144 1.06 1.129 1.703 2.544 1.703 1.34 0 2.31-.705 2.31-1.675 0-.827-.547-1.374-1.914-1.675L8.046 8.5H1v-1h14v1h-3.504c.468.437.675.994.675 1.697 0 1.826-1.436 2.967-3.644 2.967');
btnMake(n, 'H', 'Add Heading ('+ctrlKey+'+3)','#', '', false, true, true, '3',
'M3.75 2a.75.75 0 0 1 .75.75V7h7V2.75a.75.75 0 0 1 1.5 0v10.5a.75.75 0 0 1-1.5 0V8.5h-7v4.75a.75.75 0 0 1-1.5 0V2.75A.75.75 0 0 1 3.75 2Z');
btnMake(n, '---', 'Horizontal rule ('+ctrlKey+'+-)', '\n\n---\n\n', '', true, false, false, '-',
'M2 8a.5.5 0 0 1 .5-.5h11a.5.5 0 0 1 0 1h-11A.5.5 0 0 1 2 8');
btnMake(n, 'Quote', 'Quote text ('+ctrlKey+'+.)','>', '', false, true, true, '.',
'M12 12a1 1 0 0 0 1-1V8.558a1 1 0 0 0-1-1h-1.388q0-.527.062-1.054.093-.558.31-.992t.559-.683q.34-.279.868-.279V3q-.868 0-1.52.372a3.3 3.3 0 0 0-1.085.992 4.9 4.9 0 0 0-.62 1.458A7.7 7.7 0 0 0 9 7.558V11a1 1 0 0 0 1 1zm-6 0a1 1 0 0 0 1-1V8.558a1 1 0 0 0-1-1H4.612q0-.527.062-1.054.094-.558.31-.992.217-.434.559-.683.34-.279.868-.279V3q-.868 0-1.52.372a3.3 3.3 0 0 0-1.085.992 4.9 4.9 0 0 0-.62 1.458A7.7 7.7 0 0 0 3 7.558V11a1 1 0 0 0 1 1z');
btnMake(n, '• List', 'Unordered list ('+ctrlKey+'+8)',
function(e) {
try {edList('* ', edInit(e.target,'* '));}
catch(e) {}
}, '', false, false, false, '8',
'M5.75 2.5h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1 0-1.5Zm0 5h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1 0-1.5Zm0 5h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1 0-1.5ZM2 14a1 1 0 1 1 0-2 1 1 0 0 1 0 2Zm1-6a1 1 0 1 1-2 0 1 1 0 0 1 2 0ZM2 4a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z');
btnMake(n, '# List', 'Numbered list ('+ctrlKey+'+/)',
function(e) {
try {edList('1. ', edInit(e.target,'1. '), true);}
catch(e) {}
}, '', false, false, false, '/',
'M5 3.25a.75.75 0 0 1 .75-.75h8.5a.75.75 0 0 1 0 1.5h-8.5A.75.75 0 0 1 5 3.25Zm0 5a.75.75 0 0 1 .75-.75h8.5a.75.75 0 0 1 0 1.5h-8.5A.75.75 0 0 1 5 8.25Zm0 5a.75.75 0 0 1 .75-.75h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1-.75-.75ZM.924 10.32a.5.5 0 0 1-.851-.525l.001-.001.001-.002.002-.004.007-.011c.097-.144.215-.273.348-.384.228-.19.588-.392 1.068-.392.468 0 .858.181 1.126.484.259.294.377.673.377 1.038 0 .987-.686 1.495-1.156 1.845l-.047.035c-.303.225-.522.4-.654.597h1.357a.5.5 0 0 1 0 1H.5a.5.5 0 0 1-.5-.5c0-1.005.692-1.52 1.167-1.875l.035-.025c.531-.396.8-.625.8-1.078a.57.57 0 0 0-.128-.376C1.806 10.068 1.695 10 1.5 10a.658.658 0 0 0-.429.163.835.835 0 0 0-.144.153ZM2.003 2.5V6h.503a.5.5 0 0 1 0 1H.5a.5.5 0 0 1 0-1h.503V3.308l-.28.14a.5.5 0 0 1-.446-.895l1.003-.5a.5.5 0 0 1 .723.447Z');
btnMake(n, 'URL', 'Add URL ('+ctrlKey+'+K)',
function(e) {
try {edWrapInTag('[', '](URL)', edInit(e.target,'['));}
catch(e) {}
}, '', false, false, false, 'k',
'm7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z');
btnMake(n, 'Table', 'Insert table template',
function(e) {
try {
const columns = parseInt(prompt('Enter number of columns:'), 10);
const rows = parseInt(prompt('Enter number of rows:'), 10);
if (isNaN(columns) || isNaN(rows) || columns <= 0 || rows <= 0) {
alert('Please enter valid positive numbers');
return;
}
edInsertText(createMarkdownTable(columns, rows), edInit(e.target,'|'));
}
catch(e) {}
}, '', false, false, false, '',
'M0 2a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2zm15 2h-4v3h4zm0 4h-4v3h4zm0 4h-4v3h3a1 1 0 0 0 1-1zm-5 3v-3H6v3zm-5 0v-3H1v2a1 1 0 0 0 1 1zm-4-4h4V8H1zm0-4h4V4H1zm5-3v3h4V4zm4 4H6v3h4z');
btnMake(n, 'Code', 'Code Block',
function(e){
let ed = edInit(e.target,'`');
if (ed.sel.indexOf('\n') < 0) {
edWrapInTag('`', '`', ed);
}
else {
edWrapInTag(((ed.sel1==0) || (ed.text.charAt(ed.sel1-1) == '\n') ? '' : '\n') + '~~~' + (ed.sel.charAt(0) == '\n' ? '' : '\n'),
(ed.sel.substr(-1) == '\n' ? '' : '\n') + '~~~' + (ed.text.substr(ed.sel2,1) == '\n' ? '' : '\n'),
ed);
}
}, '', false, false, false, '',
'M5.854 4.854a.5.5 0 1 0-.708-.708l-3.5 3.5a.5.5 0 0 0 0 .708l3.5 3.5a.5.5 0 0 0 .708-.708L2.707 8zm4.292 0a.5.5 0 0 1 .708-.708l3.5 3.5a.5.5 0 0 1 0 .708l-3.5 3.5a.5.5 0 0 1-.708-.708L13.293 8z');
bindCtrlKeyToTextareaAction(n.textAreaNode);
//Update hover text for Preview button shortcut
let preview = n.parentNode.querySelector('input.form-submit[value="Preview"]');
if (preview) { preview.title = ctrlKey+'+P'}
}
function btnMake(afterNode, label, title, tag1, tag2, noWrap, prefix, gap, shortcut, svgPath) {
let a = document.createElement('a');
a.className = 'mdBtn';
if (!svgPath) { a.innerHTML = label };
a.title = title;
a.dataset.key = shortcut;
a.addEventListener('click',
typeof(tag1) === 'function'
? tag1
: noWrap ? function(e){ edInsertText(tag1, edInit(e.target,tag1)); }
: prefix ? function(e){ edPrefixTag(tag1, gap, edInit(e.target,tag1)); }
: function(e){ edWrapInTag(tag1, tag2, edInit(e.target,tag1)); });
if (prefix) { a.addEventListener('mousedown',function(e){ event.preventDefault() }) }
if (label === 'Quote') {
document.addEventListener("selectionchange", () => {
//Highlight quote button if text selected outside of textbox
if (getSelectionText().length > 0 && getSelection().anchorNode.className !== 'form-item') {
a.style.background = 'var(--shade3-bg)';
} else {
a.style.background = 'var(--input-bg)';
}
});
}
a.textAreaNode = afterNode.textAreaNode;
let newA = afterNode.insertBefore(a, afterNode.textAreaNode);
//Insert button SVG
if (svgPath) {
const svgNS = "http://www.w3.org/2000/svg";
const svg = document.createElementNS(svgNS, "svg");
svg.setAttribute("width", "18");
svg.setAttribute("height", "18");
if(['<s>S</s>','---','Code','Quote'].includes(label)) {
svg.setAttribute("viewBox", "1 1 14 14");
} else {
svg.setAttribute("viewBox", "0 0 16 16");
}
const path = document.createElementNS(svgNS, "path");
path.setAttribute("d", svgPath);
path.setAttribute("fill", "currentColor");
svg.appendChild(path);
newA.appendChild(svg);
}
}
function edInit(btn, tag) {
let ed = { node: btn.parentNode.textAreaNode };
ed.sel1 = ed.node.selectionStart;
ed.sel2 = ed.node.selectionEnd;
//Trim Whitespace and line breaks from start/end of selection, also improves gap detection
trimSelection(ed, tag);
ed.text = ed.node.value;
ed.sel = ed.text.substring(ed.sel1, ed.sel2);
return ed;
}
function trimSelection(ed, tag) {
while (ed.sel1 < ed.sel2) {
const startChar = ed.node.value.charAt(ed.sel1);
const endChar = ed.node.value.charAt(ed.sel2 - 1);
const isListTag = ['* ', '1. ', '>'].includes(tag);
const trimStart =
(!isListTag && /\s/.test(startChar)) ||
(isListTag && startChar === '\n');
const trimEnd =
(!isListTag && /\s/.test(endChar)) ||
(isListTag && endChar === '\n');
if (!trimStart && !trimEnd) break;
if (trimStart) ed.sel1++;
if (trimEnd) ed.sel2--;
}
}
function detectGapBefore(selStart, text, tag) {
if (selStart === 0 || selStart - tag.length === 0 || //Start of textbox
text.substring(selStart - 2, selStart - 1) === '\n' || //Line break exists before selection
text.substring(selStart - tag.length - 1, selStart - tag.length) === tag) { //Tag exists before selection
return true;
}
}
function detectGapAfter(selEnd, text, tag) {
if (text.substring(selEnd + 1, selEnd + 2) === '\n' || //Line break exists after selection
(!tag && selEnd === text.length)) { //End of textbox
return true;
}
}
function edWrapInTag(tag1, tag2, ed) {
if (ed.sel.startsWith(tag1) && ed.sel.endsWith(tag2?tag2:tag1)) {
// Remove the syntax if it's already wrapped
ed.node.value = ed.text.substr(0, ed.sel1) + ed.sel.slice(tag1.length, (tag2?-tag2.length:-tag1.length)) + ed.text.substr(ed.sel2);
ed.node.setSelectionRange(ed.sel1, ed.sel1 + ed.sel.length - tag1.length - (tag2?tag2.length:tag1.length));
} else {
// Wrap syntax
if (ed.sel.length === 0) {
replaceTextWithUndo(ed, tag1 + (tag2?tag2:tag1), true);
} else {
if (tag2 === '](URL)' && ed.sel.substr(0,4) === 'http'){ //Check if URL was selected
tag1 = '[Label](';
tag2 = ')';
}
replaceTextWithUndo(ed, ed.text.substr(0, ed.sel1) + tag1 + ed.sel + (tag2?tag2:tag1) + ed.text.substr(ed.sel2));
}
//If URL tag select the URL or Label
if (tag2 === '](URL)' && ed.sel.length > 0) {
ed.node.setSelectionRange(ed.sel1 + tag1.length + ed.sel.length + 2, ed.sel1 + tag1.length + ed.sel.length + 5);
} else if (tag1 === '[Label](' && ed.sel.length > 0) {
ed.node.setSelectionRange(ed.sel1 + 1, ed.sel1 + 6);
}
else {
ed.node.setSelectionRange(ed.sel1 + tag1.length, ed.sel1 + tag1.length + ed.sel.length);
}
}
ed.node.focus();
}
function edInsertText(text, ed) {
//Insert at cursor
replaceTextWithUndo(ed, text, true);
ed.node.setSelectionRange(ed.sel2 + text.length, ed.sel2 + text.length);
ed.node.focus();
}
function edPrefixTag(tag, gap, ed) {
if (ed.sel.startsWith(tag)) {
//Remove the syntax if it's already prefixed
const selection = removeCharAtStartOfLines(ed.sel, tag);
ed.node.value = ed.text.substr(0, ed.sel1) + selection + ed.text.substr(ed.sel2);
ed.node.setSelectionRange(ed.sel1, ed.sel1 + selection.length);
} else {
const selPage = (getSelectionText().length > 0 && getSelection().anchorNode.className !== 'form-item' && tag === '>');
let selection;
//Prefix syntax - Note Firefox and Chrome handle getSelection() differently for textboxes
if (selPage || ed.sel.length > 0) {
//Text selected in page or textarea
const selTrimmed = trimWhitespaceFromLines(selPage?getSelectionText():ed.sel);
const selectionObj = insertAtStartOfLines(selTrimmed.trimmedString,
{charToInsert: tag, numberLines: false, skipEmptyLines: true});
selection = markdownGapDetection(ed, selectionObj, tag, selTrimmed.trimmedCount, selPage?selTrimmed.trimmedString.length:0, selPage);
} else { //Add tag to the start of the line
const lineInfo = getLineInfo(ed, tag);
ed.sel1 = lineInfo.startOfLine;
ed.sel2 = lineInfo.endOfLine;
trimSelection(ed, tag);
ed.sel = ed.text.substring(ed.sel1, ed.sel2);
const selTrimmed = trimWhitespaceFromLines(ed.sel);
selection = markdownGapDetection(ed, {text: (tag + selTrimmed.trimmedString), tagCount: tag.length}, tag, selTrimmed.trimmedCount, 0);
}
//Set the full textarea
replaceTextWithUndo(ed, ed.text.substr(0, ed.sel1) + (selPage?ed.sel:'') + (selection.result??selection) + ed.text.substr(ed.sel2));
if (selPage) {
//Exclude first tag from selection so that tag can continously be added for nested markdown like blockquote
ed.node.setSelectionRange(ed.sel1 + (selPage?ed.sel.length:0) + selection.result.length, ed.sel1
+ (selPage?ed.sel.length:0) + selection.result.length);
} else if (ed.sel.length === 0) {
ed.node.setSelectionRange(ed.sel2 + tag.length, ed.sel2 + tag.length);
} else {
ed.node.setSelectionRange(ed.sel1 + tag.length + selection.iBefore, ed.sel1 + selection.result.length - selection.iAfter);
}
}
ed.node.focus();
}
function edList(tag, ed, ordered) {
//Add what to do when no selection
let selection;
if (ed.sel.startsWith(tag)) {
// Remove the syntax if it's already prefixed
selection = trimWhitespaceFromLines(removeCharAtStartOfLines(ed.sel, tag, ordered)).trimmedString;
ed.node.value = ed.text.substr(0, ed.sel1) + selection + ed.text.substr(ed.sel2);
ed.node.setSelectionRange(ed.sel1, ed.sel1 + selection.length);
} else {
if (ed.sel.length > 0) {
// Wrap syntax
const selTrimmed = trimWhitespaceFromLines(ed.sel);
const selectionObj = insertAtStartOfLines(selTrimmed.trimmedString,
{charToInsert: tag, numberLines: ordered, skipEmptyLines: true});
selection = markdownGapDetection(ed, selectionObj, tag, selTrimmed.trimmedCount, 0);
} else { //Nothing selected, just add tag
const lineInfo = getLineInfo(ed, tag);
ed.sel1 = lineInfo.startOfLine;
ed.sel2 = lineInfo.endOfLine;
trimSelection(ed, tag);
ed.sel = ed.text.substring(ed.sel1, ed.sel2);
let selTrimmed = trimWhitespaceFromLines(ed.sel);
selection = markdownGapDetection(ed, {text: (tag + selTrimmed.trimmedString), tagCount: tag.length}, tag, selTrimmed.trimmedCount, 0);
}
replaceTextWithUndo(ed, (ed.text.substr(0, ed.sel1) + (selection.result??selection) + ed.text.substr(ed.sel2)));
if (ed.sel.length === 0){ //Don't select anything if only tag was inserted
ed.node.setSelectionRange(ed.sel2 + tag.length, ed.sel2 + tag.length);
} else {
ed.node.setSelectionRange(ed.sel1 + selection.iBefore, ed.sel1 + selection.result.length - selection.iAfter);
}
}
ed.node.focus();
}
function markdownGapDetection(ed, selectionObj, tag, trimCount, addedLength, selPage) {
let iBefore;
let iAfter;
let selection = selectionObj.text;
//Check and add up to 2 line breaks before the selection
for (iBefore = 0;selection !== tag && iBefore < 2
&& !detectGapBefore(ed.sel1 + iBefore, ed.text.substr(0, ed.sel1) + selection, tag);iBefore++) {
selection = '\n' + selection;
}
//Check and add up to 2 line breaks after the selection
for (iAfter = 0;selection !== tag && iAfter < 2 && (ed.sel2 !== ed.text.length || selPage)
&& !detectGapAfter(ed.sel2 + selectionObj.tagCount + iBefore - (selPage?0:trimCount) + addedLength,
ed.text.substr(0, ed.sel1) + selection + ed.text.substr(ed.sel2), tag);iAfter++) {
selection = selection + '\n';
}
return {
result: selection,
iBefore: iBefore,
iAfter: iAfter
}
}
function getSelectionText() {
if (window.getSelection) {
return window.getSelection().toString();
}
}
function createMarkdownTable(columns, rows) {
const cellWidth = 9; //Define uniform cell width for better alignment
function pad(text) { //Helper to pad text to fixed width
return text.padEnd(cellWidth, ' ');
}
const headers = Array.from({ length: columns }, (_, i) => `Head${i + 1}`);
const headerRow = `| ${headers.join(' | ')} |`;
const separatorRow = `| ${headers.map(() => '-'.repeat(cellWidth)).join(' | ')} |`;
const dataRows = [];
for (let r = 0; r < rows; r++) {
const row = Array.from({ length: columns }, () => pad(' Cell'));
dataRows.push(`| ${row.join(' | ')} |`);
}
return [headerRow, separatorRow, ...dataRows].join('\n');
}
function getLineInfo(ed, tag) {
if (!ed || typeof ed.text !== 'string' || typeof ed.sel1 !== 'number') {
return {
startOfLine: ed?.sel1 ?? 0,
endOfLine: ed?.sel1 ?? 0,
line: ''
};
}
const startOfLine = ed.text.lastIndexOf('\n', ed.sel1 - 1) + 1;
let endOfLine = ed.text.indexOf('\n', ed.sel1);
if (endOfLine === -1) endOfLine = ed.text.length;
const line = ed.text.slice(startOfLine, endOfLine).trim();
//If tag is given and the trimmed line is made up of repeated tags
if (typeof tag === 'string' && tag.length > 0) {
const repeated = tag.repeat(Math.ceil(line.length / tag.length));
const trimmedRepeated = repeated.slice(0, line.length);
if (line === trimmedRepeated) {
return {
startOfLine: endOfLine,
endOfLine: endOfLine,
line: ed.text.slice(startOfLine, endOfLine) //Preserve original line (untrimmed)
};
}
}
return {
startOfLine,
endOfLine,
line: ed.text.slice(startOfLine, endOfLine)
};
}
function getStartOfLine(ed) {
if (!ed || typeof ed.text !== 'string' || typeof ed.sel1 !== 'number') {
return ed?.sel1;
}
const beforeSel = ed.text.substring(0, ed.sel1);
const lastNewline = beforeSel.lastIndexOf('\n');
return lastNewline + 1;
}
function insertAtStartOfLines(inputString, options = {}) {
const { charToInsert = '', numberLines = false, skipEmptyLines = true } = options;
let lineNumber = 1;
let count = 0;
let result = inputString
.split('\n')
.map(line => {
if (skipEmptyLines && line.trim() === '') {
return line;
}
if (numberLines) {
count = count + lineNumber.toString().length + 2;
return `${lineNumber++}. ${line}`;
} else {
count = count + charToInsert.length;
return charToInsert + line;
}
})
.join('\n');
return {
text: result,
tagCount: count
}
}
function removeCharAtStartOfLines(inputString, charToRemove, removeNumbers) {
return inputString
.split('\n')
.map(line => {
let newLine = line;
//Remove the specific character if needed
if (charToRemove && newLine.startsWith(charToRemove) && !removeNumbers) {
newLine = newLine.slice(1);
}
//Remove leading numbers (and optional dot/space after) if needed
if (removeNumbers) {
newLine = newLine.replace(/^\d+\.?\s*/, '');
}
return newLine;
})
.join('\n');
}
function trimWhitespaceFromLines(inputString) {
let trimmedCount = 0;
const trimmedLines = inputString.split('\n').map(line => {
const originalLength = line.length;
const trimmedLine = line.trim();
trimmedCount += originalLength - trimmedLine.length;
return trimmedLine;
});
return {
trimmedString: trimmedLines.join('\n'),
trimmedCount
};
}
function replaceTextWithUndo(ed, newText, insert) {
ed.node.focus();
ed.node.setSelectionRange(insert?ed.sel2:0, insert?ed.sel2:ed.node.value.length);
try { //Note: execCommand is needed for Undo functionality but is deprecated and could fail in the future
document.execCommand('insertText', false, newText);
} catch (err) { //Fallback if execCommand fails
ed.node.setRangeText(newText, 0, ed.node.value.length, 'start');
ed.node.dispatchEvent(new Event('input', { bubbles: true }));
}
}
function bindCtrlKeyToTextareaAction(textareaEl) {
if (!textareaEl) return;
function handleKeydown(e) {
const ctrlKey = isMacOS() ? e.metaKey : e.ctrlKey;
if (!ctrlKey || e.altKey || e.shiftKey) return;
const key = e.key.toLowerCase();
let button;
if (key === 'p') { //Hardcode Preview shortcut (Ctrl+P)
button = textareaEl.parentNode.parentNode.querySelector('input.form-submit[value="Preview"]');
}
else {
button = textareaEl.parentNode.querySelector(`a[data-key="${key}"]`);
}
if (button) {
e.preventDefault();
button.click();
}
}
textareaEl.addEventListener('keydown', handleKeydown);
}
function isMacOS() {
const platform = navigator.platform || "";
const userAgent = navigator.userAgent || "";
return platform.includes("Mac") || userAgent.includes("Macintosh");
}
