Usermode/Applications/gui_shell_src/main.c

   1 /*
   2  * Acess GUI Terminal
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * main.c
   6  * - Core
   7  */
   8 #include <axwin3/axwin.h>
   9 #include <axwin3/menu.h>
  10 #include <axwin3/richtext.h>
  11 #include <axwin3/keysyms.h>
  12 #include <stdio.h>
  13 #include <acess/sys.h>
  14 #include "include/display.h"
  15 #include "include/vt100.h"
  16 #include <string.h>
  17 #include <unicode.h>
  18 #include <errno.h>
  19 #include <acess/devices/pty.h>
  20
  21 // === PROTOTYPES ===
  22  int    main(int argc, char *argv[], const char **envp);
  23  int    Term_KeyHandler(tHWND Window, int bPress, uint32_t KeySym, uint32_t Translated);
  24  int    Term_MouseHandler(tHWND Window, int bPress, int Button, int Row, int Col);
  25 void    Term_HandleOutput(int Len, const char *Buf);
  26
  27 // === GLOBALS ===
  28 tHWND   gMainWindow;
  29 tHWND   gMenuWindow;
  30  int    giPTYHandle;
  31
  32 // === CODE ===
  33 int main(int argc, char *argv[], const char **envp)
  34 {
  35         AxWin3_Connect(NULL);
  36
  37         // --- Build up window
  38         gMainWindow = AxWin3_RichText_CreateWindow(NULL, AXWIN3_RICHTEXT_READONLY);
  39         AxWin3_SetWindowTitle(gMainWindow, "Terminal"); // TODO: Update title with other info
  40
  41         gMenuWindow = AxWin3_Menu_Create(gMainWindow);
  42         AxWin3_Menu_AddItem(gMenuWindow, "Copy\tWin+C", NULL, NULL, 0, NULL);
  43         AxWin3_Menu_AddItem(gMenuWindow, "Paste\tWin+V", NULL, NULL, 0, NULL);
  44         // TODO: Populate menu
  45
  46
  47         // TODO: Tabs?
  48
  49         AxWin3_RichText_SetKeyHandler   (gMainWindow, Term_KeyHandler);
  50         AxWin3_RichText_SetMouseHandler (gMainWindow, Term_MouseHandler);
  51         AxWin3_RichText_SetDefaultColour(gMainWindow, 0xFFFFFF);
  52         AxWin3_RichText_SetBackground   (gMainWindow, 0x000000);
  53         AxWin3_RichText_SetFont         (gMainWindow, "#monospace", 10);
  54         AxWin3_RichText_SetCursorPos    (gMainWindow, 0, 0);
  55         AxWin3_RichText_SetCursorType   (gMainWindow, AXWIN3_RICHTEXT_CURSOR_INV);
  56         AxWin3_RichText_SetCursorBlink  (gMainWindow, 1);
  57
  58         Display_Init(80, 25, 100);
  59         AxWin3_ResizeWindow(gMainWindow, 80*8, 25*16);
  60         AxWin3_MoveWindow(gMainWindow, 20, 50);
  61         AxWin3_ShowWindow(gMainWindow, 1);
  62         AxWin3_FocusWindow(gMainWindow);
  63
  64         // Create PTY
  65         giPTYHandle = _SysOpen("/Devices/pts/ptmx", OPENFLAG_READ|OPENFLAG_WRITE);
  66         if( giPTYHandle < 0 ) {
  67                 perror("Unable to create/open PTY");
  68                 _SysDebug("Unable to create/open PTY: %s", strerror(errno));
  69                 return -1;
  70         }
  71         // - Initialise
  72         {
  73                 _SysIOCtl(giPTYHandle, PTY_IOCTL_SETID, "gui0");
  74                 struct ptymode  mode = {.InputMode = PTYIMODE_CANON|PTYIMODE_ECHO, .OutputMode=0};
  75                 struct ptydims  dims = {.W = 80, .H = 25};
  76                 _SysIOCtl(giPTYHandle, PTY_IOCTL_SETMODE, &mode);
  77                 _SysIOCtl(giPTYHandle, PTY_IOCTL_SETDIMS, &dims);
  78         }
  79
  80         // Spawn shell
  81         {
  82                  int    fd = _SysOpen("/Devices/pts/gui0", OPENFLAG_READ|OPENFLAG_WRITE);
  83                  int    fds[] = {fd, fd, fd};
  84                 const char      *argv[] = {"CLIShell", NULL};
  85                 int pid = _SysSpawn("/Acess/Bin/CLIShell", argv, envp, 3, fds, NULL);
  86                 if( pid < 0 )
  87                         _SysDebug("ERROR: Shell spawn failed: %s", strerror(errno));
  88                 _SysClose(fd);
  89         }
  90
  91         // Main loop
  92         for( ;; )
  93         {
  94                 fd_set  fds;
  95
  96                 FD_ZERO(&fds);
  97                 FD_SET(giPTYHandle, &fds);
  98                 AxWin3_MessageSelect(giPTYHandle + 1, &fds);
  99
 100                 if( FD_ISSET(giPTYHandle, &fds) )
 101                 {
 102                         _SysDebug("Activity on child stdout");
 103                         // Read and update screen
 104                         char    buf[128];
 105                         int len = _SysRead(giPTYHandle, buf, sizeof(buf));
 106                         if( len <= 0 )  break;
 107
 108                         Term_HandleOutput(len, buf);
 109                 }
 110         }
 111
 112         return 0;
 113 }
 114
 115 int Term_KeyHandler(tHWND Window, int bPress, uint32_t KeySym, uint32_t Translated)
 116 {
 117         static int      ctrl_state = 0;
 118
 119         // Handle modifiers
 120         #define _bitset(var,bit,set) do{if(set)var|=1<<(bit);else var&=~(1<<(bit));}while(0)
 121         switch(KeySym)
 122         {
 123         case KEYSYM_LEFTCTRL:
 124                 _bitset(ctrl_state, 0, bPress!=0);
 125                 return 0;
 126         case KEYSYM_RIGHTCTRL:
 127                 _bitset(ctrl_state, 1, bPress!=0);
 128                 return 0;
 129         }
 130         #undef _bitset
 131
 132         // Handle shortcuts
 133         // - Ctrl-A -- Ctrl-Z
 134         if( ctrl_state && KeySym >= KEYSYM_a && KeySym <= KEYSYM_z )
 135         {
 136                 Translated = KeySym - KEYSYM_a + 1;
 137                 _SysDebug("Ctrl-%c: KS %x => Trans %x", 'A'+(KeySym-KEYSYM_a), KeySym, Translated);
 138         }
 139
 140         // == 2 :: FIRE
 141         if( bPress == 2 )
 142         {
 143                 if( Translated )
 144                 {
 145                         char    buf[6];
 146                          int    len;
 147
 148                         // Encode and send
 149                         len = WriteUTF8(buf, Translated);
 150
 151                         _SysDebug("Keystroke %x:%x translated to '%.*s'", KeySym, Translated, len, buf);
 152                         _SysWrite(giPTYHandle, buf, len);
 153
 154                         return 0;
 155                 }
 156
 157                 // No translation, look for escape sequences to send
 158                 const char *str = NULL;
 159                 switch(KeySym)
 160                 {
 161                 case KEYSYM_LEFTARROW:
 162                         str = "\x1b[D";
 163                         break;
 164                 case KEYSYM_RIGHTARROW:
 165                         str = "\x1b[C";
 166                         break;
 167                 case KEYSYM_UPARROW:
 168                         str = "\x1b[A";
 169                         break;
 170                 case KEYSYM_DOWNARROW:
 171                         str = "\x1b[B";
 172                         break;
 173                 }
 174                 if( str )
 175                 {
 176                         _SysWrite(giPTYHandle, str, strlen(str));
 177                 }
 178         }
 179         return 0;
 180 }
 181
 182 int Term_MouseHandler(tHWND Window, int bPress, int Button, int Row, int Col)
 183 {
 184         return 0;
 185 }
 186
 187 void Term_HandleOutput(int Len, const char *Buf)
 188 {
 189         // TODO: Handle graphical / accelerated modes
 190
 191          int    ofs = 0;
 192          int    esc_len = 0;
 193
 194         while( ofs < Len )
 195         {
 196                 esc_len = Term_HandleVT100(Len - ofs, Buf + ofs);
 197                 if( esc_len < 0 ) {
 198                         Display_AddText(-esc_len, Buf + ofs);
 199                         esc_len = -esc_len;
 200                 }
 201                 ofs += esc_len;
 202                 //_SysDebug("Len = %i, ofs = %i", Len, ofs);
 203         }
 204
 205         Display_Flush();
 206 }
 207