Usermode/Applications/irc_src/input.c

   1 /*
   2  */
   3 #include "input.h"
   4 #include "window.h"
   5 #include "server.h"
   6 #include <readline.h>
   7 #include <stdlib.h>
   8 #include <stdio.h>
   9 #include <string.h>
  10
  11 // === PROTOTYPES ===
  12 void    Input_FillSelect(int *nfds, fd_set *rfds);
  13 void    Input_HandleSelect(int nfds, const fd_set *rfds);
  14  int    ParseUserCommand(char *String);
  15
  16 // === GLOBALS ===
  17 tReadline       *gpInput_ReadlineInfo;
  18
  19 // === CODE ===
  20 void Input_FillSelect(int *nfds, fd_set *rfds)
  21 {
  22         if( !gpInput_ReadlineInfo ) {
  23                 gpInput_ReadlineInfo = Readline_Init(1);
  24         }
  25
  26         FD_SET(0, rfds);
  27         if(*nfds < 0+1)
  28                 *nfds = 0+1;
  29 }
  30
  31 void Input_HandleSelect(int nfds, const fd_set *rfds)
  32 {
  33         // User input
  34         if(FD_ISSET(0, rfds))
  35         {
  36                 char    *cmd = Readline_NonBlock(gpInput_ReadlineInfo);
  37                 if( cmd )
  38                 {
  39                         if( cmd[0] )
  40                         {
  41                                 ParseUserCommand(cmd);
  42                         }
  43                         free(cmd);
  44                         // Prompt
  45                         SetCursorPos(giTerminal_Height-1, 1);
  46                         printf("\x1B[2K");      // Clear line
  47                         printf("[%s]", Window_GetName(NULL));
  48                 }
  49         }
  50 }
  51
  52 void Cmd_join(char *ArgString)
  53 {
  54          int    pos=0;
  55         char    *channel_name = GetValue(ArgString, &pos);
  56
  57         tServer *srv = Window_GetServer(NULL);
  58
  59         if( srv )
  60         {
  61                 Windows_SwitchTo( Window_Create(srv, channel_name) );
  62                 Redraw_Screen();
  63                 Server_SendCommand(srv, "JOIN :%s", channel_name);
  64         }
  65 }
  66
  67 void Cmd_quit(char *ArgString)
  68 {
  69         const char *quit_message = ArgString;
  70         if( quit_message == NULL || quit_message[0] == '\0' )
  71                 quit_message = "/quit - Acess2 IRC Client";
  72
  73         Servers_CloseAll(quit_message);
  74
  75         Exit(NULL);     // NULL = user requested
  76 }
  77
  78 void Cmd_window(char *ArgString)
  79 {
  80          int    pos = 0;
  81         char    *window_id = GetValue(ArgString, &pos);
  82          int    window_num = atoi(window_id);
  83
  84         if( window_num > 0 )
  85         {
  86                 // Get `window_num`th window
  87                 tWindow *win = Windows_GetByIndex(window_num-1);
  88                 if( win )
  89                 {
  90                         Windows_SwitchTo( win );
  91                 }
  92                 else
  93                 {
  94                         // Otherwise, silently ignore
  95                 }
  96         }
  97         else
  98         {
  99                 window_num = 1;
 100                 for( tWindow *win; (win = Windows_GetByIndex(window_num-1)); window_num ++ )
 101                 {
 102                         Window_AppendMessage(WINDOW_STATUS, MSG_CLASS_CLIENT, NULL, "%i: %s", window_num, Window_GetName(win));
 103                 }
 104         }
 105 }
 106
 107 const struct {
 108         const char *Name;
 109         void    (*Fcn)(char *ArgString);
 110 } caCommands[] = {
 111         {"join", Cmd_join},
 112         {"quit", Cmd_quit},
 113         {"window", Cmd_window},
 114         {"win",    Cmd_window},
 115         {"w",      Cmd_window},
 116 };
 117 const int ciNumCommands = sizeof(caCommands)/sizeof(caCommands[0]);
 118
 119 /**
 120  * \brief Handle a line from the prompt
 121  */
 122 int ParseUserCommand(char *String)
 123 {
 124         if( String[0] == '/' )
 125         {
 126                 char    *command;
 127                  int    pos = 0;
 128
 129                 command = GetValue(String, &pos)+1;
 130
 131                 // TODO: Prefix matches
 132                  int    cmdIdx = -1;
 133                 for( int i = 0; i < ciNumCommands; i ++ )
 134                 {
 135                         if( strcmp(command, caCommands[i].Name) == 0 ) {
 136                                 cmdIdx = i;
 137                                 break;
 138                         }
 139                 }
 140                 if( cmdIdx != -1 ) {
 141                         caCommands[cmdIdx].Fcn(String+pos);
 142                 }
 143                 else
 144                 {
 145                         Window_AppendMessage(WINDOW_STATUS, MSG_CLASS_CLIENT, NULL, "Unknown command %s", command);
 146                 }
 147         }
 148         else
 149         {
 150                 // Message
 151                 // - Only send if server is valid and window name is non-empty
 152                 tServer *srv = Window_GetServer(NULL);
 153                 if( srv && Window_IsChat(NULL) ) {
 154                         Window_AppendMessage(NULL, MSG_CLASS_MESSAGE, Server_GetNick(srv), "%s", String);
 155                         Server_SendCommand(srv, "PRIVMSG %s :%s\n", Window_GetName(NULL), String);
 156                 }
 157         }
 158
 159         return 0;
 160 }