229 lines
8.8 KiB
JavaScript
229 lines
8.8 KiB
JavaScript
(function () {
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var textarea = document.getElementById('editor');
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if (!textarea) return;
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var form = textarea.closest('form');
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// --- DOM helpers ---
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// Route every edit through execCommand so the browser's native undo/redo
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// stack is preserved. Direct assignment to textarea.value would wipe it.
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function replaceRange(start, end, text) {
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textarea.focus();
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textarea.selectionStart = start;
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textarea.selectionEnd = end;
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document.execCommand('insertText', false, text);
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}
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function wrap(before, after, placeholder) {
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var start = textarea.selectionStart;
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var end = textarea.selectionEnd;
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var hadSelection = end > start;
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var selected = hadSelection ? textarea.value.slice(start, end) : placeholder;
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replaceRange(start, end, before + selected + after);
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if (!hadSelection) {
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textarea.selectionStart = start + before.length;
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textarea.selectionEnd = start + before.length + placeholder.length;
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}
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}
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function linePrefix(prefix) {
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var start = textarea.selectionStart;
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var lineStart = textarea.value.lastIndexOf('\n', start - 1) + 1;
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replaceRange(lineStart, lineStart, prefix);
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textarea.selectionStart = textarea.selectionEnd = start + prefix.length;
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}
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function insertAtCursor(s) {
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replaceRange(textarea.selectionStart, textarea.selectionEnd, s);
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}
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function applyResult(result) {
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var oldText = textarea.value;
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var newText = result.text;
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var prefixLen = 0;
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var maxPrefix = Math.min(oldText.length, newText.length);
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while (prefixLen < maxPrefix && oldText.charCodeAt(prefixLen) === newText.charCodeAt(prefixLen)) {
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prefixLen++;
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}
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var oldEnd = oldText.length;
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var newEnd = newText.length;
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while (oldEnd > prefixLen && newEnd > prefixLen
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&& oldText.charCodeAt(oldEnd - 1) === newText.charCodeAt(newEnd - 1)) {
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oldEnd--;
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newEnd--;
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}
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replaceRange(prefixLen, oldEnd, newText.slice(prefixLen, newEnd));
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textarea.selectionStart = textarea.selectionEnd = result.cursor;
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}
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function applyTableOp(fn, arg) {
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var result = arg !== undefined
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? fn(textarea.value, textarea.selectionStart, arg)
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: fn(textarea.value, textarea.selectionStart);
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if (result) applyResult(result);
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}
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// isValidWikiTarget mirrors the Go validator in wikilinks.go — absolute
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// path, no empty/dot segments. Used to gate the INSERT confirm button.
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function isValidWikiTarget(p) {
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if (!p || p[0] !== '/') return false;
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var trimmed = p.replace(/^\/+|\/+$/g, '');
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if (trimmed === '') return true;
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var segs = trimmed.split('/');
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for (var i = 0; i < segs.length; i++) {
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if (segs[i] === '' || segs[i] === '.' || segs[i] === '..') return false;
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}
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return true;
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}
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function insertWikilink() {
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var sel = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);
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var container = document.createElement('div');
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var targetWrap = document.createElement('div');
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var targetInput = document.createElement('input');
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targetInput.type = 'text';
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targetInput.className = 'modal-input';
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targetInput.placeholder = 'Page path or search…';
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targetWrap.appendChild(targetInput);
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var displayInput = document.createElement('input');
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displayInput.type = 'text';
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displayInput.className = 'modal-input';
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displayInput.placeholder = 'Display text (optional)';
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if (sel) displayInput.value = sel;
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container.appendChild(targetWrap);
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container.appendChild(displayInput);
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var handle = openModal({
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title: 'Insert link',
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body: container,
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confirm: {
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label: 'INSERT',
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initiallyDisabled: true,
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onConfirm: function () {
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var target = targetInput.value.trim();
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if (!isValidWikiTarget(target)) return;
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var display = displayInput.value.trim();
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handle.close();
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insertAtCursor(display ? '[[' + target + '::' + display + ']]' : '[[' + target + ']]');
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}
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}
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});
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function updateConfirm() {
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handle.setConfirmDisabled(!isValidWikiTarget(targetInput.value.trim()));
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}
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targetInput.addEventListener('input', updateConfirm);
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window.attachSuggestions(targetInput, {
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showFooter: false,
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container: targetWrap,
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onPick: function (r) {
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targetInput.value = '/' + r.path;
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updateConfirm();
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displayInput.focus();
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displayInput.select();
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}
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});
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}
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// --- Actions ---
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var T = EditorTables;
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var L = EditorLists;
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var D = EditorDates;
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var M = EditorMovie;
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var actions = {
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save: function () { form.submit(); },
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bold: function () { wrap('**', '**', 'bold text'); },
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italic: function () { wrap('*', '*', 'italic text'); },
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h1: function () { linePrefix('# '); },
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h2: function () { linePrefix('## '); },
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h3: function () { linePrefix('### '); },
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code: function () { wrap('`', '`', 'code'); },
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codeblock: function () { wrap('```\n', '\n```', 'code'); },
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quote: function () { linePrefix('> '); },
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link: function () { wrap('[', '](url)', 'link text'); },
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wikilink: insertWikilink,
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ul: function () { linePrefix('- '); },
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ol: function () { linePrefix('1. '); },
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task: function () { linePrefix('- [ ] '); },
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hr: function () { wrap('\n\n---\n\n', '', ''); },
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fmttable: function () { applyTableOp(T.formatTableText); },
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tblalignleft: function () { applyTableOp(T.setColumnAlignment, 'left'); },
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tblaligncenter: function () { applyTableOp(T.setColumnAlignment, 'center'); },
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tblalignright: function () { applyTableOp(T.setColumnAlignment, 'right'); },
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tblinsertcol: function () { applyTableOp(T.insertColumn); },
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tbldeletecol: function () { applyTableOp(T.deleteColumn); },
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tblinsertrow: function () { applyTableOp(T.insertRow); },
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tbldeleterow: function () { applyTableOp(T.deleteRow); },
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dateiso: function () { insertAtCursor(D.isoDate()); },
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datelong: function () { insertAtCursor(D.longDate()); },
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movie: function () { M.run(textarea); },
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wide: function () {
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var enabled = !document.body.classList.contains('editor-wide');
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document.body.classList.toggle('editor-wide', enabled);
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sessionStorage.setItem('editor-wide', enabled ? '1' : '0');
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},
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};
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// --- Keyboard shortcut registration ---
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var keyMap = {};
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document.querySelectorAll('[data-action]').forEach(function (btn) {
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btn.addEventListener('click', function () {
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var action = actions[btn.dataset.action];
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if (action) action();
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});
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if (btn.dataset.key) {
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keyMap[btn.dataset.key] = actions[btn.dataset.action];
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}
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});
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document.addEventListener('keydown', function (e) {
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if (!e.altKey || !e.shiftKey) return;
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// Shift+digit produces a layout-dependent character in e.key (e.g. "!"
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// on US, "!" on DE), so fall back to e.code for digit rows.
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var key = /^Digit[0-9]$/.test(e.code) ? e.code.slice(5) : e.key;
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var action = keyMap[key];
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if (action) {
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e.preventDefault();
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action();
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}
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});
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// --- Textarea key handling ---
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textarea.addEventListener('keydown', function (e) {
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if (e.key === 'Delete' && e.shiftKey) {
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var result = T.deleteRow(textarea.value, textarea.selectionStart)
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|| L.deleteOrderedLine(textarea.value, textarea.selectionStart);
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if (!result) return;
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e.preventDefault();
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applyResult(result);
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return;
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}
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if (e.key === 'Enter' && e.shiftKey) {
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var result = T.insertRowBelow(textarea.value, textarea.selectionStart);
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if (!result) return;
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e.preventDefault();
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applyResult(result);
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return;
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}
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if (e.key !== 'Enter') return;
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var result = L.handleEnterKey(textarea.value, textarea.selectionStart);
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if (!result) return;
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e.preventDefault();
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applyResult(result);
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});
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// --- Dropdowns ---
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document.querySelectorAll('.dropdown-toggle').forEach(wireDropdown);
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})();
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