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Parse markdown-like messages to italic, underline, block and color

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Print date only if current message is newer than previous message by a day

Make keybinding configurable for clear input
This commit is contained in:
Night Kaly 2024-09-20 15:51:07 +01:00
parent 5845540b70
commit 47e50fcf8e
Signed by: night0721
GPG key ID: 957D67B8DB7A119B
3 changed files with 169 additions and 11 deletions
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3
include/client/ui.h
View file

@ -6,10 +6,11 @@
#define USERS_WINDOW 0
#define CHAT_WINDOW 1
/* Keybindings */
/* Key code */
#define CTRLA 0x01
#define CTRLD 0x04
#define CTRLE 0x05
#define CTRLX 0x18
#define DOWN 0x102
#define UP 0x103
#define LEFT 0x104

3
include/config.h
View file

@ -19,3 +19,6 @@
#define TEXTBOX_HEIGHT 1
#define CLIENT_DATA_DIR "~/.local/share/zsm/zen"
/* Keybindings */
#define CLEAR_INPUT CTRLX

172
src/client/ui.c
View file

@ -255,23 +255,161 @@ void add_message(uint8_t *author, uint8_t *recipient, uint8_t *content, uint32_t
/*
* Add message to chat window
* if flag is 1, print date as well
* user_color is the color defined above at ncurses_init
*/
void print_message(message_t *msg, int user_color)
void print_message(int flag, message_t *msg, int user_color)
{
struct tm *timeinfo = localtime(&msg->creation);
char buffer[21];
if (flag) {
strftime(buffer, sizeof(buffer), "%b %d %Y %H:%M:%S", timeinfo);
} else {
strftime(buffer, sizeof(buffer), "%H:%M:%S", timeinfo);
}
wprintw(chat_content, "%s ", buffer);
wattron(chat_content, A_BOLD);
wattron(chat_content, COLOR_PAIR(user_color));
wprintw(chat_content, "<%s> ", msg->author);
wattroff(chat_content, A_BOLD);
wattroff(chat_content, COLOR_PAIR(user_color));
wprintw(chat_content, "%s", msg->content);
int i = 0;
int n = strlen(msg->content);
int in_bold = 0, in_italic = 0, in_underline = 0, in_block = 0;
while (i < n) {
/* Bold */
if (msg->content[i] == '*' && msg->content[i + 1] == '*') {
if (!in_bold) {
/* Look ahead for the matching closing delimiter */
int closing_pos = i + 2;
while (closing_pos < n && !(msg->content[closing_pos] == '*' && msg->content[closing_pos + 1] == '*')) {
closing_pos++;
}
if (closing_pos < n) {
wattron(chat_content, A_BOLD);
in_bold = 1;
} else {
/* Treat as regular text if closing delimiter */
waddch(chat_content, msg->content[i++]);
}
} else {
wattroff(chat_content, A_BOLD);
in_bold = 0;
}
/* Skip */
i += 2;
/* Italic */
} else if (msg->content[i] == '*') {
if (!in_italic) {
/* Look ahead for the matching closing delimiter */
int closing_pos = i + 1;
while (closing_pos < n && msg->content[closing_pos] != '*') {
closing_pos++;
}
if (closing_pos < n) {
wattron(chat_content, A_ITALIC);
in_italic = 1;
} else {
/* Treat as regular text if closing delimiter */
waddch(chat_content, msg->content[i++]);
}
} else {
wattroff(chat_content, A_ITALIC);
in_italic = 0;
}
/* Skip */
i += 1;
/* Underline */
} else if (msg->content[i] == '_') {
if (!in_underline) {
/* Look ahead for the matching closing delimiter */
int closing_pos = i + 1;
while (closing_pos < n && msg->content[closing_pos] != '_') {
closing_pos++;
}
if (closing_pos < n) {
wattron(chat_content, A_UNDERLINE);
in_underline = 1;
} else {
/* Treat as regular text if closing delimiter */
waddch(chat_content, msg->content[i++]);
}
} else {
wattroff(chat_content, A_UNDERLINE);
in_underline = 0;
}
/* Skip */
i += 1;
/* Block */
} else if (msg->content[i] == '`') {
if (!in_block) {
/* Look ahead for the matching closing delimiter */
int closing_pos = i + 1;
while (closing_pos < n && msg->content[closing_pos] != '`') {
closing_pos++;
}
if (closing_pos < n) {
wattron(chat_content, A_STANDOUT);
in_block = 1;
} else {
/* Treat as regular text if closing delimiter */
waddch(chat_content, msg->content[i++]);
}
} else {
wattroff(chat_content, A_STANDOUT);
in_block = 0;
}
/* Skip */
i += 1;
/* Allow escape sequence for genuine backslash */
} else if (msg->content[i] == '\\' && msg->content[i + 1] == '\\') {
/* Print a literal backslash */
waddch(chat_content, '\\');
/* Skip both backslashes */
i += 2;
/* Color, new line and tab */
} else if (msg->content[i] == '\\') {
/* Skip the backslash and check the next character */
i++;
/* Handle color codes \1 to \8 */
if (msg->content[i] >= '1' && msg->content[i] <= '8') {
/* Convert char to int */
int color_pair = msg->content[i] - '0';
wattron(chat_content, COLOR_PAIR(color_pair));
/* Skip the color code character */
i++;
/* Handle new line */
} else if (msg->content[i] == 'n') {
waddch(chat_content, '\n');
/* Skip the 'n' */
i++;
} else {
/* Invalid sequence, just print the backslash and character */
waddch(chat_content, '\\');
waddch(chat_content, msg->content[i]);
i++;
}
} else {
/* Print regular character */
waddch(chat_content, msg->content[i]);
i++;
}
}
/* Ensure attributes are turned off after printing */
wattroff(chat_content, A_BOLD);
wattroff(chat_content, A_ITALIC);
wattroff(chat_content, A_UNDERLINE);
wattroff(chat_content, A_STANDOUT);
}
/*
@ -285,19 +423,28 @@ void show_chat(uint8_t *recipient)
if (message.content == NULL) continue;
/* Find messages from recipient to client or vice versa */
/* outgoing = 1, incoming = 2 */
/* if message to print is older than previous message by a day,
* enable flag in print_message to include date */
int print_date = 0;
if (i > 0 && messages[i - 1].content != NULL && message.creation >= messages[i - 1].creation + 86400) {
print_date = 1;
}
if (strncmp(message.author, USERNAME, MAX_NAME) == 0 &&
strncmp(message.recipient, recipient, MAX_NAME) == 0) {
print_message(&message, 1);
print_message(print_date, &message, 1);
continue;
}
if (strncmp(message.author, recipient, MAX_NAME) == 0 &&
strncmp(message.recipient, USERNAME, MAX_NAME) == 0) {
print_message(&message, 2);
print_message(print_date, &message, 2);
continue;
}
}
wrefresh(chat_content);
/* after printing move cursor back to textbox */
wmove(textbox, 0, curs_pos + 2);
wrefresh(textbox);
}
/*
* Require heap allocated username
@ -327,7 +474,7 @@ void get_chatbox_content(int ch)
curs_pos = 0;
/* Set content[0] for printing purposes */
content[curs_pos] = '\0';
content[0] = '\0';
}
/* Append it to the content if it is normal character */
else if (curs_pos < MAX_MESSAGE_LENGTH - 1) {
@ -389,7 +536,7 @@ void send_message()
}
add_message(USERNAME, recipient, content, content_len, time(NULL));
free_packet(pkt);
highlight_current_line();
show_chat(recipient);
}
/*
@ -422,6 +569,7 @@ void ui(int fd)
wclear(textbox);
mvwprintw(textbox, 0, 0, "> %s", content);
wrefresh(textbox);
wmove(textbox, 0, curs_pos + 2);
curs_set(2);
} else {
curs_set(0);
@ -464,12 +612,18 @@ void ui(int fd)
}
break;
case CLEAR_INPUT:
if (current_window == CHAT_WINDOW) {
curs_pos = 0;
content[0] = '\0';
}
default:
if (current_window == CHAT_WINDOW)
get_chatbox_content(ch);
}
}
cleanup:
arraylist_free(users);
arraylist_free(marked);