Hiding XMPP and Ncurses from app code

app.c

@@ -1,19 +1,12 @@
 #include <string.h>
 #include <unistd.h>
 
-#include <strophe/strophe.h>
 #include <ncurses.h>
 
 #include "log.h"
 #include "windows.h"
 #include "jabber.h"
 
-// window references
-extern WINDOW *title_bar;
-extern WINDOW *cmd_bar;
-extern WINDOW *cmd_win;
-extern WINDOW *main_win;
-
 static void main_event_loop(void);
 
 void start_profanity(void)
@@ -26,88 +19,52 @@ void start_profanity(void)
             break;
         } else if (strncmp(cmd, "/connect ", 9) == 0) {
             char *user;
-            char passwd[20];
-
             user = strndup(cmd+9, strlen(cmd)-9);
 
             bar_print_message("Enter password:");
+            char passwd[20];
             cmd_get_password(passwd);
+
             bar_print_message(user);
-
             jabber_connect(user, passwd);
-
             main_event_loop();
-
             break;
         } else {
-            // echo ignore
-            wclear(cmd_win);
-            wmove(cmd_win, 0, 0);
+            cmd_clear();
         }
     }
 }
 
 static void main_event_loop(void)
 {
-    int cmd_y = 0;
-    int cmd_x = 0;
-
-    wtimeout(cmd_win, 0);
+    cmd_non_block();
 
     while(TRUE) {
         int ch = ERR;
         char command[100];
         int size = 0;
 
-        // while not enter
+        // while not enter, process all events, and try to get another char
         while(ch != '\n') {
             usleep(1);
+        
             // handle incoming messages
             jabber_process_events();
 
-            // move cursor back to cmd_win
-            getyx(cmd_win, cmd_y, cmd_x);
-            wmove(cmd_win, cmd_y, cmd_x);
-
-            // echo off, and get some more input
-            noecho();
-            ch = wgetch(cmd_win);
-
-            // if delete pressed, go back and delete it
-            if (ch == 127) {
-                if (size > 0) {
-                    getyx(cmd_win, cmd_y, cmd_x);
-                    wmove(cmd_win, cmd_y, cmd_x-1);
-                    wdelch(cmd_win);
-                    size--;
-                }
-            }
-            // else if not error or newline, show it and store it
-            else if (ch != ERR && ch != '\n') {
-                waddch(cmd_win, ch);
-                command[size++] = ch;
-            }
-
-            echo();
+            // get another character from the command box
+            cmd_poll_char(&ch, command, &size);
         }
 
+        // null terminate the input    
         command[size++] = '\0';
 
         // newline was hit, check if /quit command issued
         if (strcmp(command, "/quit") == 0) {
             break;
         } else {
-            // send the message
             jabber_send(command);
-
-            // show it in the main window
-            wprintw(main_win, "me: %s\n", command);
-            wrefresh(main_win);
-
-            // move back to the command window and clear it
-            wclear(cmd_win);
-            wmove(cmd_win, 0, 0);
-            wrefresh(cmd_win);
+            show_outgoing_msg("me", command);
+            cmd_clear();
         }
     }
 

windows.c

@@ -3,10 +3,10 @@
 #include "windows.h"
 
 // window references
-extern WINDOW *title_bar;
-extern WINDOW *cmd_bar;
-extern WINDOW *cmd_win;
-extern WINDOW *main_win;
+static WINDOW *title_bar;
+static WINDOW *cmd_bar;
+static WINDOW *cmd_win;
+static WINDOW *main_win;
 
 static void create_title_bar(void);
 static void create_command_bar(void);
@@ -58,12 +58,66 @@ void show_incomming_msg(char *from, char *message)
     wrefresh(main_win);
 }
 
+void show_outgoing_msg(char *from, char* message)
+{
+    char line[100];
+    sprintf(line, "%s: %s\n", from, message);
+
+    wprintw(main_win, line);
+    wrefresh(main_win);
+}
+
 void cmd_get_command_str(char *cmd)
 {
     wmove(cmd_win, 0, 0);
     wgetstr(cmd_win, cmd);
 }
 
+void cmd_clear(void)
+{
+    wclear(cmd_win);
+    wmove(cmd_win, 0, 0);
+    wrefresh(cmd_win);
+}
+
+void cmd_non_block(void)
+{
+    wtimeout(cmd_win, 0);
+}
+
+void cmd_poll_char(int *ch, char command[], int *size)
+{
+    int cmd_y = 0;
+    int cmd_x = 0;
+
+    // move cursor back to cmd_win
+    getyx(cmd_win, cmd_y, cmd_x);
+    wmove(cmd_win, cmd_y, cmd_x);
+
+    // echo off, and get some more input
+    noecho();
+    *ch = wgetch(cmd_win);
+
+    // if delete pressed, go back and delete it
+    if (*ch == 127) {
+        if (*size > 0) {
+            getyx(cmd_win, cmd_y, cmd_x);
+            wmove(cmd_win, cmd_y, cmd_x-1);
+            wdelch(cmd_win);
+            (*size)--;
+        }
+    }
+    // else if not error or newline, show it and store it
+    else if (*ch != ERR && *ch != '\n') {
+        waddch(cmd_win, *ch);
+        command[(*size)++] = *ch;
+    }
+
+    echo();
+
+
+}
+
 void cmd_get_password(char *passwd)
 {
     wclear(cmd_win);

windows.h

@@ -4,16 +4,14 @@
 #include <strophe/strophe.h>
 #include <ncurses.h>
 
-// windows
-WINDOW *title_bar;
-WINDOW *cmd_bar;
-WINDOW *cmd_win;
-WINDOW *main_win;
-
 void gui_init(void);
 void gui_close(void);
 void show_incomming_msg(char *from, char *message);
+void show_outgoing_msg(char *from, char *message);
 void cmd_get_command_str(char *cmd);
+void cmd_poll_char(int *ch, char command[], int *size);
+void cmd_clear(void);
+void cmd_non_block(void);
 void cmd_get_password(char *passwd);
 void bar_print_message(char *msg);