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chat: Add mentions support for users 

Todo: move the chat to it's proper page and handle users that will and won't be shown on the user list.
Joca 2025-08-03 18:54:00 -03:00
parent bdf81e7c68
commit 3530276b4a
Signed by: jocadbz
GPG Key ID: B1836DCE2F50BDF7
5 changed files with 249 additions and 99 deletions
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74
handlers/chat.go
View File

@ -6,6 +6,10 @@ import (
"net/http" "net/http"
"sync" "sync"
"threadr/models" "threadr/models"
"html/template"
"regexp"
"time"
"github.com/gorilla/sessions" "github.com/gorilla/sessions"
"github.com/gorilla/websocket" "github.com/gorilla/websocket"
) )
@ -69,6 +73,27 @@ func init() {
go hub.Run() go hub.Run()
} }
// ChatDisplayMessage is used to pass chat message data to the template,
// with content pre-formatted for HTML rendering.
type ChatDisplayMessage struct {
ID int
UserID int
Content string // Raw content for JS processing if needed, maybe not
FormattedContent template.HTML // Content with mentions as HTML spans
ReplyTo int
Timestamp time.Time
Username string
PfpURL string
}
// formatChatMessageContent takes raw message content and wraps @mentions in HTML spans.
func formatChatMessageContent(content string) template.HTML {
// Regex to find @username. $0 will be replaced with the entire match (e.g., @username)
r := regexp.MustCompile(`@([a-zA-Z0-9_]+)`)
formatted := r.ReplaceAllString(content, `<span class="chat-message-mention">$0</span>`)
return template.HTML(formatted)
}
func ChatHandler(app *App) http.HandlerFunc { func ChatHandler(app *App) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) { return func(w http.ResponseWriter, r *http.Request) {
session := r.Context().Value("session").(*sessions.Session) session := r.Context().Value("session").(*sessions.Session)
@ -117,19 +142,34 @@ func ChatHandler(app *App) http.HandlerFunc {
Content: chatMsg.Content, Content: chatMsg.Content,
ReplyTo: chatMsg.ReplyTo, ReplyTo: chatMsg.ReplyTo,
} }
if err := models.CreateChatMessage(app.DB, msgObj); err != nil { // CreateChatMessage now also handles notifications and returns the new message ID
newMsgID, err := models.CreateChatMessage(app.DB, msgObj)
if err != nil {
log.Printf("Error saving chat message: %v", err) log.Printf("Error saving chat message: %v", err)
continue continue
} }
// Fetch the saved message with timestamp and user details // Fetch the saved message with timestamp and user details
var msgID int savedMsg, err := models.GetChatMessageByID(app.DB, newMsgID)
app.DB.QueryRow("SELECT LAST_INSERT_ID()").Scan(&msgID)
savedMsg, err := models.GetChatMessageByID(app.DB, msgID)
if err != nil { if err != nil {
log.Printf("Error fetching saved message: %v", err) log.Printf("Error fetching saved message: %v", err)
continue continue
} }
response, _ := json.Marshal(savedMsg) if savedMsg == nil {
log.Printf("Error: saved message with ID %d not found after creation", newMsgID)
continue
}
// Prepare ChatDisplayMessage for broadcast
displayMsg := ChatDisplayMessage{
ID: savedMsg.ID,
UserID: savedMsg.UserID,
Content: savedMsg.Content, // Keep raw content if needed by JS, or remove
FormattedContent: formatChatMessageContent(savedMsg.Content),
ReplyTo: savedMsg.ReplyTo,
Timestamp: savedMsg.Timestamp,
Username: savedMsg.Username,
PfpURL: savedMsg.PfpURL,
}
response, _ := json.Marshal(displayMsg)
hub.broadcast <- response hub.broadcast <- response
} }
} }
@ -152,21 +192,35 @@ func ChatHandler(app *App) http.HandlerFunc {
} }
// Render chat page // Render chat page
messages, err := models.GetRecentChatMessages(app.DB, 50) rawMessages, err := models.GetRecentChatMessages(app.DB, 50)
if err != nil { if err != nil {
log.Printf("Error fetching chat messages: %v", err) log.Printf("Error fetching chat messages: %v", err)
http.Error(w, "Internal Server Error", http.StatusInternalServerError) http.Error(w, "Internal Server Error", http.StatusInternalServerError)
return return
} }
var displayMessages []ChatDisplayMessage
for _, msg := range rawMessages {
displayMessages = append(displayMessages, ChatDisplayMessage{
ID: msg.ID,
UserID: msg.UserID,
Content: msg.Content, // Raw content
FormattedContent: formatChatMessageContent(msg.Content),
ReplyTo: msg.ReplyTo,
Timestamp: msg.Timestamp,
Username: msg.Username,
PfpURL: msg.PfpURL,
})
}
// Reverse messages to show oldest first // Reverse messages to show oldest first
for i, j := 0, len(messages)-1; i < j; i, j = i+1, j-1 { for i, j := 0, len(displayMessages)-1; i < j; i, j = i+1, j-1 {
messages[i], messages[j] = messages[j], messages[i] displayMessages[i], displayMessages[j] = displayMessages[j], displayMessages[i]
} }
data := struct { data := struct {
PageData PageData
Messages []models.ChatMessage Messages []ChatDisplayMessage
}{ }{
PageData: PageData{ PageData: PageData{
Title: "ThreadR - Chat", Title: "ThreadR - Chat",
@ -177,7 +231,7 @@ func ChatHandler(app *App) http.HandlerFunc {
StaticPath: app.Config.ThreadrDir + "/static", StaticPath: app.Config.ThreadrDir + "/static",
CurrentURL: r.URL.Path, CurrentURL: r.URL.Path,
}, },
Messages: messages, Messages: displayMessages,
} }
if err := app.Tmpl.ExecuteTemplate(w, "chat", data); err != nil { if err := app.Tmpl.ExecuteTemplate(w, "chat", data); err != nil {
log.Printf("Error executing template in ChatHandler: %v", err) log.Printf("Error executing template in ChatHandler: %v", err)

90
models/chat.go
View File

@ -3,6 +3,8 @@ package models
import ( import (
"database/sql" "database/sql"
"time" "time"
"log"
"regexp"
) )
type ChatMessage struct { type ChatMessage struct {
@ -13,13 +15,64 @@ type ChatMessage struct {
Timestamp time.Time Timestamp time.Time
Username string // For display, fetched from user Username string // For display, fetched from user
PfpURL string // For display, fetched from user PfpURL string // For display, fetched from user
Mentions []string // List of mentioned usernames Mentions []string // List of mentioned usernames (not directly used for display, but for notifications)
} }
func CreateChatMessage(db *sql.DB, msg ChatMessage) error { // extractMentions finds all @username mentions in content and returns a slice of unique usernames.
func extractMentions(content string) []string {
r := regexp.MustCompile(`@([a-zA-Z0-9_]+)`) // Matches @ followed by one or more word characters
matches := r.FindAllStringSubmatch(content, -1)
uniqueMentions := make(map[string]struct{})
for _, match := range matches {
if len(match) > 1 {
uniqueMentions[match[1]] = struct{}{}
}
}
var result []string
for username := range uniqueMentions { // Corrected: uniqueMentions
result = append(result, username)
}
return result
}
// CreateChatMessage inserts a new chat message and creates notifications for mentioned users.
func CreateChatMessage(db *sql.DB, msg ChatMessage) (int, error) {
query := "INSERT INTO chat_messages (user_id, content, reply_to, timestamp) VALUES (?, ?, ?, NOW())" query := "INSERT INTO chat_messages (user_id, content, reply_to, timestamp) VALUES (?, ?, ?, NOW())"
_, err := db.Exec(query, msg.UserID, msg.Content, msg.ReplyTo) result, err := db.Exec(query, msg.UserID, msg.Content, msg.ReplyTo)
return err if err != nil {
return 0, err
}
// Get the ID of the newly inserted message
msgID64, err := result.LastInsertId()
if err != nil {
return 0, err
}
msgID := int(msgID64)
// Create notifications for mentioned users
mentionedUsernames := extractMentions(msg.Content)
for _, username := range mentionedUsernames {
mentionedUser, err := GetUserByUsername(db, username) // models/user.go GetUserByUsername
if err != nil {
// Log error but don't fail message creation for non-existent users
log.Printf("Warning: Could not find mentioned user '%s' for notification: %v", username, err)
continue
}
if mentionedUser != nil && mentionedUser.ID != msg.UserID { // Don't notify self
notification := Notification{
UserID: mentionedUser.ID,
Type: "chat_mention",
RelatedID: msgID, // The ID of the newly created chat message
Read: false,
}
err := CreateNotification(db, notification) // models/notification.go CreateNotification
if err != nil {
log.Printf("Error creating chat mention notification for user %d: %v", mentionedUser.ID, err)
}
}
}
return msgID, nil
} }
func GetRecentChatMessages(db *sql.DB, limit int) ([]ChatMessage, error) { func GetRecentChatMessages(db *sql.DB, limit int) ([]ChatMessage, error) {
@ -51,8 +104,6 @@ func GetRecentChatMessages(db *sql.DB, limit int) ([]ChatMessage, error) {
if pfpURL.Valid { if pfpURL.Valid {
msg.PfpURL = pfpURL.String msg.PfpURL = pfpURL.String
} }
// Parse mentions from content (simple @username detection)
msg.Mentions = extractMentions(msg.Content)
messages = append(messages, msg) messages = append(messages, msg)
} }
return messages, nil return messages, nil
@ -82,7 +133,6 @@ func GetChatMessageByID(db *sql.DB, id int) (*ChatMessage, error) {
if pfpURL.Valid { if pfpURL.Valid {
msg.PfpURL = pfpURL.String msg.PfpURL = pfpURL.String
} }
msg.Mentions = extractMentions(msg.Content)
return &msg, nil return &msg, nil
} }
@ -104,29 +154,3 @@ func GetUsernamesMatching(db *sql.DB, prefix string) ([]string, error) {
} }
return usernames, nil return usernames, nil
} }
// Simple utility to extract mentions from content
func extractMentions(content string) []string {
var mentions []string
var currentMention string
inMention := false
for _, char := range content {
if char == '@' {
inMention = true
currentMention = "@"
} else if inMention && (char == ' ' || char == '\n' || char == '\t') {
if len(currentMention) > 1 {
mentions = append(mentions, currentMention)
}
inMention = false
currentMention = ""
} else if inMention {
currentMention += string(char)
}
}
if inMention && len(currentMention) > 1 {
mentions = append(mentions, currentMention)
}
return mentions
}

6
models/notification.go
View File

@ -15,7 +15,7 @@ type Notification struct {
} }
func GetNotificationsByUserID(db *sql.DB, userID int) ([]Notification, error) { func GetNotificationsByUserID(db *sql.DB, userID int) ([]Notification, error) {
query := "SELECT id, user_id, type, related_id, read, created_at FROM notifications WHERE user_id = ? ORDER BY created_at DESC" query := "SELECT id, user_id, type, related_id, is_read, created_at FROM notifications WHERE user_id = ? ORDER BY created_at DESC"
rows, err := db.Query(query, userID) rows, err := db.Query(query, userID)
if err != nil { if err != nil {
return nil, err return nil, err
@ -36,14 +36,14 @@ func GetNotificationsByUserID(db *sql.DB, userID int) ([]Notification, error) {
// Stubbed for future implementation // Stubbed for future implementation
func CreateNotification(db *sql.DB, notification Notification) error { func CreateNotification(db *sql.DB, notification Notification) error {
query := "INSERT INTO notifications (user_id, type, related_id, read, created_at) VALUES (?, ?, ?, ?, NOW())" query := "INSERT INTO notifications (user_id, type, related_id, is_read, created_at) VALUES (?, ?, ?, ?, NOW())"
_, err := db.Exec(query, notification.UserID, notification.Type, notification.RelatedID, notification.Read) _, err := db.Exec(query, notification.UserID, notification.Type, notification.RelatedID, notification.Read)
return err return err
} }
// Stubbed for future implementation // Stubbed for future implementation
func MarkNotificationAsRead(db *sql.DB, id int) error { func MarkNotificationAsRead(db *sql.DB, id int) error {
query := "UPDATE notifications SET read = true WHERE id = ?" query := "UPDATE notifications SET is_read = true WHERE id = ?"
_, err := db.Exec(query, id) _, err := db.Exec(query, id)
return err return err
} }

3
models/user.go
View File

@ -82,6 +82,9 @@ func GetUserByUsername(db *sql.DB, username string) (*User, error) {
var createdAtString sql.NullString var createdAtString sql.NullString
var updatedAtString sql.NullString var updatedAtString sql.NullString
err := row.Scan(&user.ID, &user.Username, &displayName, &pfpURL, &bio, &user.AuthenticationString, &user.AuthenticationSalt, &user.AuthenticationAlgorithm, &createdAtString, &updatedAtString, &user.Verified, &user.Permissions) err := row.Scan(&user.ID, &user.Username, &displayName, &pfpURL, &bio, &user.AuthenticationString, &user.AuthenticationSalt, &user.AuthenticationAlgorithm, &createdAtString, &updatedAtString, &user.Verified, &user.Permissions)
if err == sql.ErrNoRows { // Explicitly handle sql.ErrNoRows
return nil, nil
}
if err != nil { if err != nil {
return nil, err return nil, err
} }

175
templates/pages/chat.html
View File

@ -51,6 +51,14 @@
height: 30px; height: 30px;
border-radius: 50%; border-radius: 50%;
margin-right: 8px; margin-right: 8px;
background-color: #001858; /* Default for no PFP */
flex-shrink: 0; /* Prevent shrinking */
}
.chat-message-pfp img {
width: 100%;
height: 100%;
border-radius: 50%;
object-fit: cover;
} }
.chat-message-username { .chat-message-username {
font-weight: bold; font-weight: bold;
@ -68,6 +76,7 @@
border-radius: 5px; border-radius: 5px;
line-height: 1.3; line-height: 1.3;
font-size: 0.9em; font-size: 0.9em;
word-wrap: break-word; /* Ensure long words break */
} }
.chat-message-reply { .chat-message-reply {
background-color: rgba(0,0,0,0.1); background-color: rgba(0,0,0,0.1);
@ -78,7 +87,7 @@
cursor: pointer; cursor: pointer;
} }
.chat-message-mention { .chat-message-mention {
color: #f582ae; color: #f582ae; /* Highlight color for mentions */
font-weight: bold; font-weight: bold;
} }
.chat-input { .chat-input {
@ -88,6 +97,8 @@
flex-direction: column; flex-direction: column;
} }
.chat-input textarea { .chat-input textarea {
width: 100%;
box-sizing: border-box;
resize: none; resize: none;
height: 50px; height: 50px;
margin-bottom: 8px; margin-bottom: 8px;
@ -123,6 +134,9 @@
} }
.autocomplete-popup { .autocomplete-popup {
position: absolute; position: absolute;
bottom: 100%; /* Position above the textarea */
left: 0;
right: 0;
background-color: #fff; background-color: #fff;
border: 1px solid #001858; border: 1px solid #001858;
border-radius: 5px; border-radius: 5px;
@ -131,14 +145,16 @@
box-shadow: 0px 4px 8px rgba(0,0,0,0.2); box-shadow: 0px 4px 8px rgba(0,0,0,0.2);
z-index: 1000; z-index: 1000;
display: none; display: none;
margin-bottom: 8px; /* Space between popup and textarea */
} }
.autocomplete-item { .autocomplete-item {
padding: 6px 10px; padding: 6px 10px;
cursor: pointer; cursor: pointer;
font-size: 0.9em; font-size: 0.9em;
} }
.autocomplete-item:hover { .autocomplete-item:hover, .autocomplete-item:focus {
background-color: #f3d2c1; background-color: #f3d2c1;
outline: none; /* Remove default focus outline */
} }
.reply-indicator { .reply-indicator {
background-color: #001858; background-color: #001858;
@ -167,6 +183,13 @@
background: none; background: none;
color: #f582ae; color: #f582ae;
} }
/* New wrapper for autocomplete positioning */
.chat-input-wrapper {
position: relative;
width: 100%;
}
@media (prefers-color-scheme: dark) { @media (prefers-color-scheme: dark) {
.chat-container { .chat-container {
background-color: #444; background-color: #444;
@ -189,7 +212,7 @@
border-color: #fef6e4; border-color: #fef6e4;
color: #fef6e4; color: #fef6e4;
} }
.autocomplete-item:hover { .autocomplete-item:hover, .autocomplete-item:focus {
background-color: #555; background-color: #555;
} }
.post-actions a { .post-actions a {
@ -225,9 +248,9 @@
<div class="chat-message" id="msg-{{.ID}}"> <div class="chat-message" id="msg-{{.ID}}">
<div class="chat-message-header"> <div class="chat-message-header">
{{if .PfpURL}} {{if .PfpURL}}
<img src="{{.PfpURL}}" alt="PFP" class="chat-message-pfp"> <div class="chat-message-pfp"><img src="{{.PfpURL}}" alt="PFP"></div>
{{else}} {{else}}
<div class="chat-message-pfp" style="background-color: #001858;"></div> <div class="chat-message-pfp"></div>
{{end}} {{end}}
<span class="chat-message-username">{{.Username}}</span> <span class="chat-message-username">{{.Username}}</span>
<span class="chat-message-timestamp">{{.Timestamp.Format "02/01/2006 15:04"}}</span> <span class="chat-message-timestamp">{{.Timestamp.Format "02/01/2006 15:04"}}</span>
@ -235,7 +258,7 @@
{{if gt .ReplyTo 0}} {{if gt .ReplyTo 0}}
<div class="chat-message-reply" onclick="scrollToMessage({{.ReplyTo}})">Replying to {{.Username}}</div> <div class="chat-message-reply" onclick="scrollToMessage({{.ReplyTo}})">Replying to {{.Username}}</div>
{{end}} {{end}}
<div class="chat-message-content">{{.Content | html}}</div> <div class="chat-message-content">{{.FormattedContent}}</div> <!-- Use FormattedContent -->
<div class="post-actions"> <div class="post-actions">
<a href="javascript:void(0)" onclick="replyToMessage({{.ID}}, '{{.Username}}')">Reply</a> <a href="javascript:void(0)" onclick="replyToMessage({{.ID}}, '{{.Username}}')">Reply</a>
</div> </div>
@ -247,17 +270,21 @@
<span id="reply-username">Replying to </span> <span id="reply-username">Replying to </span>
<button onclick="cancelReply()">X</button> <button onclick="cancelReply()">X</button>
</div> </div>
<textarea id="chat-input-text" placeholder="Type a message..."></textarea> <div class="chat-input-wrapper"> <!-- New wrapper for autocomplete positioning -->
<textarea id="chat-input-text" placeholder="Type a message..."></textarea>
<div id="autocomplete-popup" class="autocomplete-popup"></div>
</div>
<button onclick="sendMessage()">Send</button> <button onclick="sendMessage()">Send</button>
</div> </div>
</div> </div>
<div id="autocomplete-popup" class="autocomplete-popup"></div>
</main> </main>
{{template "cookie_banner" .}} {{template "cookie_banner" .}}
<script> <script>
let ws; let ws;
let autocompleteActive = false; let autocompleteActive = false;
let autocompletePrefix = ''; let autocompleteCurrentPrefix = ''; // Track the current prefix being typed
let autocompleteRangeStart = -1; // Start index of the @mention in the textarea
let replyToId = -1; let replyToId = -1;
let replyUsername = ''; let replyUsername = '';
@ -292,6 +319,7 @@
} else { } else {
console.error("WebSocket is not open. Current state:", ws ? ws.readyState : 'undefined'); console.error("WebSocket is not open. Current state:", ws ? ws.readyState : 'undefined');
} }
hideAutocompletePopup(); // Ensure popup is hidden after sending
} }
function appendMessage(msg) { function appendMessage(msg) {
@ -299,18 +327,18 @@
const msgDiv = document.createElement('div'); const msgDiv = document.createElement('div');
msgDiv.className = 'chat-message'; msgDiv.className = 'chat-message';
msgDiv.id = 'msg-' + msg.ID; msgDiv.id = 'msg-' + msg.ID;
let pfpHTML = msg.PfpURL ? `<img src="${msg.PfpURL}" alt="PFP" class="chat-message-pfp">` : `<div class="chat-message-pfp" style="background-color: #001858;"></div>`; let pfpHTML = msg.PfpURL ? `<img src="${msg.PfpURL}" alt="PFP">` : ``; // PFP div has default background
let replyHTML = msg.ReplyTo > 0 ? `<div class="chat-message-reply" onclick="scrollToMessage(${msg.ReplyTo})">Replying to ${msg.Username}</div>` : ''; let replyHTML = msg.ReplyTo > 0 ? `<div class="chat-message-reply" onclick="scrollToMessage(${msg.ReplyTo})">Replying to ${msg.Username}</div>` : '';
// Process content for mentions
let content = msg.Content.replace(/@[\w]+/g, match => `<span class="chat-message-mention">${match}</span>`); // Use msg.FormattedContent directly as it's already processed on the server
msgDiv.innerHTML = ` msgDiv.innerHTML = `
<div class="chat-message-header"> <div class="chat-message-header">
${pfpHTML} <div class="chat-message-pfp">${pfpHTML}</div>
<span class="chat-message-username">${msg.Username}</span> <span class="chat-message-username">${msg.Username}</span>
<span class="chat-message-timestamp">${new Date(msg.Timestamp).toLocaleString()}</span> <span class="chat-message-timestamp">${new Date(msg.Timestamp).toLocaleString()}</span>
</div> </div>
${replyHTML} ${replyHTML}
<div class="chat-message-content">${content}</div> <div class="chat-message-content">${msg.FormattedContent}</div> <!-- Use FormattedContent -->
<div class="post-actions"> <div class="post-actions">
<a href="javascript:void(0)" onclick="replyToMessage(${msg.ID}, '${msg.Username}')">Reply</a> <a href="javascript:void(0)" onclick="replyToMessage(${msg.ID}, '${msg.Username}')">Reply</a>
</div> </div>
@ -339,76 +367,117 @@
function scrollToMessage(id) { function scrollToMessage(id) {
const msgElement = document.getElementById('msg-' + id); const msgElement = document.getElementById('msg-' + id);
if (msgElement) { if (msgElement) {
msgElement.scrollIntoView({ behavior: 'smooth' }); msgElement.scrollIntoView({ behavior: 'smooth', block: 'center' }); // block: 'center' for better visibility
// Optional: briefly highlight the message
msgElement.style.outline = '2px solid #f582ae';
setTimeout(() => {
msgElement.style.outline = 'none';
}, 1500);
} }
} }
function showAutocompletePopup(usernames, x, y) { function showAutocompletePopup(usernames) {
const popup = document.getElementById('autocomplete-popup'); const popup = document.getElementById('autocomplete-popup');
popup.innerHTML = ''; popup.innerHTML = '';
popup.style.left = x + 'px';
popup.style.top = y + 'px';
popup.style.display = 'block';
autocompleteActive = true;
usernames.forEach(username => { usernames.forEach(username => {
const item = document.createElement('div'); const item = document.createElement('div');
item.className = 'autocomplete-item'; item.className = 'autocomplete-item';
item.textContent = username; item.textContent = `@${username}`; // Display with @ prefix
item.setAttribute('tabindex', '0'); // Make focusable
item.onclick = () => { item.onclick = () => {
completeMention(username); completeMention(username);
popup.style.display = 'none'; hideAutocompletePopup();
autocompleteActive = false;
}; };
popup.appendChild(item); popup.appendChild(item);
}); });
popup.style.display = usernames.length > 0 ? 'block' : 'none';
autocompleteActive = usernames.length > 0;
}
function hideAutocompletePopup() {
document.getElementById('autocomplete-popup').style.display = 'none';
autocompleteActive = false;
autocompleteCurrentPrefix = '';
autocompleteRangeStart = -1;
} }
function completeMention(username) { function completeMention(username) {
const input = document.getElementById('chat-input-text'); const input = document.getElementById('chat-input-text');
const text = input.value; const text = input.value;
const atIndex = text.lastIndexOf('@', input.selectionStart - 1); if (autocompleteRangeStart !== -1) {
if (atIndex !== -1) { const before = text.substring(0, autocompleteRangeStart);
const before = text.substring(0, atIndex);
const after = text.substring(input.selectionStart); const after = text.substring(input.selectionStart);
input.value = before + username + (after.startsWith(' ') ? '' : ' ') + after; input.value = before + '@' + username + ' ' + after;
input.selectionStart = input.selectionEnd = before.length + username.length + 2; // Move caret after the space
input.focus(); input.focus();
} }
hideAutocompletePopup();
} }
document.getElementById('chat-input-text').addEventListener('input', async (e) => { document.getElementById('chat-input-text').addEventListener('input', async (e) => {
const text = e.target.value; const text = e.target.value;
const caretPos = e.target.selectionStart; const caretPos = e.target.selectionStart;
const atIndex = text.lastIndexOf('@', caretPos - 1);
if (atIndex !== -1 && (caretPos === text.length || text[caretPos] === ' ')) { // Find the last '@' before the caret that is part of a mention
const prefix = text.substring(atIndex + 1, caretPos); let atIndex = -1;
autocompletePrefix = prefix; for (let i = caretPos - 1; i >= 0; i--) {
const response = await fetch('{{.BasePath}}/chat/?autocomplete=true&prefix=' + encodeURIComponent(prefix)); if (text[i] === '@') {
const usernames = await response.json(); // Check if the character before @ is a space or start of string
if (usernames.length > 0) { const charBefore = i > 0 ? text[i-1] : ' ';
const rect = e.target.getBoundingClientRect(); if (charBefore === ' ' || charBefore === '\n' || charBefore === '\t') { // Added tab check
// Approximate caret position (this is a rough estimate) atIndex = i;
const charWidth = 8; // Rough estimate of character width in pixels break;
const caretX = rect.left + (caretPos - text.lastIndexOf('\n', caretPos - 1) - 1) * charWidth; }
showAutocompletePopup(usernames, caretX, rect.top - 10); }
} else { // Stop if we hit a space or newline before an '@' (outside of a valid @mention context)
document.getElementById('autocomplete-popup').style.display = 'none'; if (text[i] === ' ' || text[i] === '\n' || text[i] === '\t') { // Added tab check
autocompleteActive = false; break;
} }
} else {
document.getElementById('autocomplete-popup').style.display = 'none';
autocompleteActive = false;
} }
if (atIndex !== -1 && atIndex < caretPos) { // Ensure @ is before caret
const prefix = text.substring(atIndex + 1, caretPos);
// Only trigger if prefix contains valid characters (alphanumeric, underscore)
if (prefix.match(/^[\w]*$/)) {
autocompleteCurrentPrefix = prefix;
autocompleteRangeStart = atIndex;
const response = await fetch('{{.BasePath}}/chat/?autocomplete=true&prefix=' + encodeURIComponent(prefix));
const usernames = await response.json();
showAutocompletePopup(usernames);
return; // Exit after handling autocomplete
}
}
hideAutocompletePopup(); // Hide if no valid @mention in progress
}); });
document.getElementById('chat-input-text').addEventListener('keydown', (e) => { document.getElementById('chat-input-text').addEventListener('keydown', (e) => {
if (autocompleteActive) { if (autocompleteActive) {
const popup = document.getElementById('autocomplete-popup'); const popup = document.getElementById('autocomplete-popup');
const items = popup.getElementsByClassName('autocomplete-item'); const items = Array.from(popup.getElementsByClassName('autocomplete-item'));
if (e.key === 'Enter' && items.length > 0) { let currentFocus = document.activeElement;
items[0].click(); let currentIndex = items.indexOf(currentFocus);
if (e.key === 'ArrowDown') {
e.preventDefault(); e.preventDefault();
} else if (e.key === 'ArrowDown' && items.length > 0) { if (items.length > 0) {
items[0].focus(); currentIndex = (currentIndex + 1) % items.length;
items[currentIndex].focus();
}
} else if (e.key === 'ArrowUp') {
e.preventDefault();
if (items.length > 0) {
currentIndex = (currentIndex - 1 + items.length) % items.length;
items[currentIndex].focus();
}
} else if (e.key === 'Enter' || e.key === 'Tab') { // Added Tab to accept
e.preventDefault();
if (currentFocus && currentFocus.classList.contains('autocomplete-item')) {
currentFocus.click();
} else if (items.length > 0) {
items[0].click(); // Select first item if nothing specific focused
}
} else if (e.key === 'Escape') {
hideAutocompletePopup();
e.preventDefault(); e.preventDefault();
} }
} else if (e.key === 'Enter' && !e.shiftKey) { } else if (e.key === 'Enter' && !e.shiftKey) {
@ -419,15 +488,15 @@
document.addEventListener('click', (e) => { document.addEventListener('click', (e) => {
if (!e.target.closest('#autocomplete-popup') && !e.target.closest('#chat-input-text')) { if (!e.target.closest('#autocomplete-popup') && !e.target.closest('#chat-input-text')) {
document.getElementById('autocomplete-popup').style.display = 'none'; hideAutocompletePopup();
autocompleteActive = false;
} }
}); });
// Connect WebSocket on page load // Connect WebSocket on page load
window.onload = function() { window.onload = function() {
connectWebSocket(); connectWebSocket();
document.getElementById('chat-messages').scrollTop = document.getElementById('chat-messages').scrollHeight; const chatMessagesDiv = document.getElementById('chat-messages');
chatMessagesDiv.scrollTop = chatMessagesDiv.scrollHeight;
}; };
</script> </script>
</body> </body>