Revert "Chat: Add markdown preview toggle with client-side rendering and user preference"
This reverts commit ffe9f30c0a.
jocadbz
parent
ffe9f30c0a
commit
9c959f6412
GPG Key ID:
B1836DCE2F50BDF7
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@ -223,21 +223,12 @@ func ChatHandler(app *App) http.HandlerFunc {
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}
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allUsernamesJSON, _ := json.Marshal(allUsernames)
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// Get user preferences for markdown preview default
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prefs, err := models.GetUserPreferences(app.DB, userID)
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if err != nil {
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log.Printf("Error fetching user preferences: %v", err)
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// Create default if not found
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prefs, _ = models.CreateDefaultPreferences(app.DB, userID)
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}
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data := struct {
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PageData
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Board models.Board
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Messages []models.ChatMessage
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AllUsernames template.JS
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CurrentUsername string
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MarkdownPreviewDefault string
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}{
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PageData: PageData{
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Title: "ThreadR Chat - " + board.Name,
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@ -252,7 +243,6 @@ func ChatHandler(app *App) http.HandlerFunc {
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Messages: messages,
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AllUsernames: template.JS(allUsernamesJSON),
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CurrentUsername: currentUsername,
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MarkdownPreviewDefault: prefs.MarkdownPreviewDefault,
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}
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if err := app.Tmpl.ExecuteTemplate(w, "chat", data); err != nil {
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log.Printf("Error executing template in ChatHandler: %v", err)
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115
static/app.js
115
static/app.js
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@ -371,118 +371,3 @@ function showDraftIndicator(content, timestamp, onRestore, onDiscard) {
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return indicator;
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}
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// ============================================
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// Markdown Preview Functions
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// ============================================
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// Escape HTML to prevent XSS
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function escapeHTML(str) {
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const div = document.createElement('div');
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div.textContent = str;
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return div.innerHTML;
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}
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// Process inline markdown (bold, italic, code, mentions)
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function processInlineMarkdown(line) {
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// Inline code first (to avoid processing markdown inside code)
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line = line.replace(/`([^`]+)`/g, '<code>$1</code>');
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// Bold: **text** or __text__
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line = line.replace(/\*\*([^\*]+)\*\*/g, '<strong>$1</strong>');
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line = line.replace(/__([^_]+)__/g, '<strong>$1</strong>');
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// Italic: *text* or _text_
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line = line.replace(/\*([^\*]+)\*/g, '<em>$1</em>');
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line = line.replace(/_([^_]+)_/g, '<em>$1</em>');
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// Mentions: @username
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line = line.replace(/@(\w+)/g, '<span class="chat-message-mention">@$1</span>');
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return line;
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}
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// Render markdown to HTML (matching Go implementation)
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function renderMarkdownPreview(content) {
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let html = '';
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// Extract code blocks first and replace with placeholders
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const codeBlocks = [];
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let codeBlockCounter = 0;
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content = content.replace(/```(\w*)\n([\s\S]*?)\n```/g, (match, lang, code) => {
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const escapedCode = escapeHTML(code);
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let renderedBlock;
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if (lang) {
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renderedBlock = `<pre><code class="language-${lang}">${escapedCode}</code></pre>`;
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} else {
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renderedBlock = `<pre><code>${escapedCode}</code></pre>`;
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}
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const placeholder = `<!--CODEBLOCK_${codeBlockCounter}-->`;
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codeBlocks[codeBlockCounter] = renderedBlock;
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codeBlockCounter++;
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return placeholder;
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});
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// Process lines
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const lines = content.split('\n');
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let inList = false;
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for (const line of lines) {
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const trimmedLine = line.trim();
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// Headers
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if (trimmedLine.startsWith('### ')) {
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if (inList) { html += '</ul>\n'; inList = false; }
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html += '<h3>' + processInlineMarkdown(trimmedLine.substring(4)) + '</h3>\n';
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continue;
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} else if (trimmedLine.startsWith('## ')) {
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if (inList) { html += '</ul>\n'; inList = false; }
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html += '<h2>' + processInlineMarkdown(trimmedLine.substring(3)) + '</h2>\n';
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continue;
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} else if (trimmedLine.startsWith('# ')) {
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if (inList) { html += '</ul>\n'; inList = false; }
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html += '<h1>' + processInlineMarkdown(trimmedLine.substring(2)) + '</h1>\n';
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continue;
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}
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// Lists
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if (trimmedLine.startsWith('* ') || trimmedLine.startsWith('- ')) {
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if (!inList) {
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html += '<ul>\n';
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inList = true;
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}
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const listContent = trimmedLine.substring(2);
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html += '<li>' + processInlineMarkdown(listContent) + '</li>\n';
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continue;
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}
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// Close list if we're not in a list item anymore
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if (inList) {
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html += '</ul>\n';
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inList = false;
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}
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// Regular paragraphs
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if (trimmedLine !== '') {
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html += '<p>' + processInlineMarkdown(trimmedLine) + '</p>\n';
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} else {
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html += '\n';
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}
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}
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// Close list if still open
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if (inList) {
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html += '</ul>\n';
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}
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// Replace code block placeholders
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codeBlocks.forEach((block, index) => {
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html = html.replace(`<!--CODEBLOCK_${index}-->`, block);
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});
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// Clean up excessive newlines
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html = html.replace(/\n{3,}/g, '\n\n');
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return html;
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}
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@ -247,99 +247,6 @@
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padding: 6px 12px;
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font-size: 0.9em;
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}
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.markdown-tabs {
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display: flex;
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gap: 0;
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margin-bottom: 0;
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border-bottom: 1px solid #001858;
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}
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.markdown-tab {
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flex: 1;
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padding: 8px 16px;
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border: none;
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background-color: #f3d2c1;
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color: #001858;
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font-family: monospace;
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font-size: 0.9em;
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cursor: pointer;
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border-right: 1px solid #001858;
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transition: background-color 0.2s ease;
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}
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.markdown-tab:last-child {
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border-right: none;
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}
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.markdown-tab:hover {
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background-color: #fef6e4;
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}
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.markdown-tab.active {
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background-color: #8bd3dd;
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color: #001858;
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font-weight: bold;
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}
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.markdown-content-container {
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position: relative;
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min-height: 50px;
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}
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.chat-input textarea,
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.markdown-preview {
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display: none;
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resize: none;
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height: 50px;
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margin-bottom: 8px;
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font-size: 0.9em;
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width: 100%;
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box-sizing: border-box;
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}
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.chat-input textarea.markdown-visible,
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.markdown-preview.markdown-visible {
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display: block;
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}
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.markdown-preview {
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border: 1px solid #001858;
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border-radius: 5px;
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padding: 8px;
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background-color: #fef6e4;
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color: #001858;
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min-height: 50px;
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max-height: 200px;
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overflow-y: auto;
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font-family: monospace;
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}
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.markdown-preview h1 {
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font-size: 1.5em;
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margin: 0.5em 0;
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}
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.markdown-preview h2 {
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font-size: 1.3em;
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margin: 0.5em 0;
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}
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.markdown-preview h3 {
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font-size: 1.1em;
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margin: 0.5em 0;
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}
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.markdown-preview p {
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margin: 0.5em 0;
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}
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.markdown-preview ul {
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margin: 0.5em 0;
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padding-left: 2em;
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}
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.markdown-preview code {
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background-color: #f3d2c1;
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padding: 2px 4px;
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border-radius: 3px;
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}
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.markdown-preview pre {
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background-color: #f3d2c1;
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padding: 8px;
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border-radius: 5px;
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overflow-x: auto;
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margin: 0.5em 0;
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}
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.markdown-preview pre code {
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background-color: transparent;
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padding: 0;
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}
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.post-actions {
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position: absolute;
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top: 5px;
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@ -503,29 +410,6 @@
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border-color: #f582ae;
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}
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}
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.markdown-tab {
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background-color: #555;
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color: #fef6e4;
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border-color: #fef6e4;
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}
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.markdown-tab:hover {
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background-color: #666;
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}
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.markdown-tab.active {
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background-color: #8bd3dd;
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color: #001858;
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}
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.markdown-preview {
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background-color: #333;
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color: #fef6e4;
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border-color: #fef6e4;
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}
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.markdown-preview code {
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background-color: #555;
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}
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.markdown-preview pre {
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background-color: #555;
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}
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}
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</style>
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</head>
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@ -582,14 +466,7 @@
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<span id="reply-username">Replying to </span>
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<button onclick="cancelReply()">X</button>
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</div>
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<div class="markdown-tabs">
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<button class="markdown-tab active" data-tab="edit" onclick="switchMarkdownTab('edit')">Edit</button>
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<button class="markdown-tab" data-tab="preview" onclick="switchMarkdownTab('preview')">Preview</button>
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</div>
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<div class="markdown-content-container">
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<textarea id="chat-input-text" placeholder="Type a message..." class="markdown-visible"></textarea>
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<div id="chat-preview" class="markdown-preview"></div>
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</div>
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<textarea id="chat-input-text" placeholder="Type a message..."></textarea>
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<button onclick="sendMessage()">Send</button>
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</div>
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</div>
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@ -952,57 +829,6 @@
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}
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});
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// Markdown preview functionality
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let currentTab = '{{.MarkdownPreviewDefault}}' || 'edit';
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let previewUpdateTimeout;
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function switchMarkdownTab(tab) {
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currentTab = tab;
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const textarea = document.getElementById('chat-input-text');
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const preview = document.getElementById('chat-preview');
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const tabs = document.querySelectorAll('.markdown-tab');
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// Update tab styling
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tabs.forEach(t => {
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if (t.dataset.tab === tab) {
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t.classList.add('active');
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} else {
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t.classList.remove('active');
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}
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});
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// Show/hide content
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if (tab === 'edit') {
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textarea.classList.add('markdown-visible');
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preview.classList.remove('markdown-visible');
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textarea.focus();
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} else {
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textarea.classList.remove('markdown-visible');
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preview.classList.add('markdown-visible');
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updatePreview();
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}
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}
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function updatePreview() {
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const textarea = document.getElementById('chat-input-text');
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const preview = document.getElementById('chat-preview');
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const content = textarea.value;
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if (content.trim() === '') {
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preview.innerHTML = '<p style="opacity: 0.5; font-style: italic;">Nothing to preview. Type some markdown in the Edit tab.</p>';
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} else {
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preview.innerHTML = renderMarkdownPreview(content);
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}
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}
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// Update preview on input (debounced)
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document.getElementById('chat-input-text').addEventListener('input', () => {
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if (currentTab === 'preview') {
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clearTimeout(previewUpdateTimeout);
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previewUpdateTimeout = setTimeout(updatePreview, 300);
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}
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});
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window.onload = function() {
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connectWebSocket();
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const messagesContainer = document.getElementById('chat-messages');
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@ -1080,9 +906,6 @@
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originalSendMessage();
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};
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// Initialize markdown preview tab based on user preference
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switchMarkdownTab(currentTab);
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// Initial check for scroll position
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checkScrollPosition();
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};
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