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/gui0", OPENFLAG_READ|OPENFLAG_WRITE|OPENFLAG_CREATE);
  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                 struct ptymode  mode = {.InputMode = PTYIMODE_CANON|PTYIMODE_ECHO, .OutputMode=0};
  74                 struct ptydims  dims = {.W = 80, .H = 25};
  75                 _SysIOCtl(giPTYHandle, PTY_IOCTL_SETMODE, &mode);
  76                 _SysIOCtl(giPTYHandle, PTY_IOCTL_SETDIMS, &dims);
  77         }
  78
  79         // Spawn shell
  80         {
  81                  int    fd = _SysOpen("/Devices/pts/gui0c", OPENFLAG_READ|OPENFLAG_WRITE);
  82                  int    fds[] = {fd, fd, fd};
  83                 const char      *argv[] = {"CLIShell", NULL};
  84                 int pid = _SysSpawn("/Acess/Bin/CLIShell", argv, envp, 3, fds, NULL);
  85                 if( pid < 0 )
  86                         _SysDebug("ERROR: Shell spawn failed: %s", strerror(errno));
  87                 _SysClose(fd);
  88         }
  89
  90         // Main loop
  91         for( ;; )
  92         {
  93                 fd_set  fds;
  94
  95                 FD_ZERO(&fds);
  96                 FD_SET(giPTYHandle, &fds);
  97                 AxWin3_MessageSelect(giPTYHandle + 1, &fds);
  98
  99                 if( FD_ISSET(giPTYHandle, &fds) )
 100                 {
 101                         _SysDebug("Activity on child stdout");
 102                         // Read and update screen
 103                         char    buf[128];
 104                         int len = _SysRead(giPTYHandle, buf, sizeof(buf));
 105                         if( len <= 0 )  break;
 106
 107                         Term_HandleOutput(len, buf);
 108                 }
 109         }
 110
 111         return 0;
 112 }
 113
 114 int Term_KeyHandler(tHWND Window, int bPress, uint32_t KeySym, uint32_t Translated)
 115 {
 116         static int      ctrl_state = 0;
 117
 118         // Handle modifiers
 119         #define _bitset(var,bit,set) do{if(set)var|=1<<(bit);else var&=~(1<<(bit));}while(0)
 120         switch(KeySym)
 121         {
 122         case KEYSYM_LEFTCTRL:
 123                 _bitset(ctrl_state, 0, bPress!=0);
 124                 return 0;
 125         case KEYSYM_RIGHTCTRL:
 126                 _bitset(ctrl_state, 1, bPress!=0);
 127                 return 0;
 128         }
 129         #undef _bitset
 130
 131         // Handle shortcuts
 132         // - Ctrl-A -- Ctrl-Z
 133         if( ctrl_state && KeySym >= KEYSYM_a && KeySym <= KEYSYM_z )
 134         {
 135                 Translated = KeySym - KEYSYM_a + 1;
 136                 _SysDebug("Ctrl-%c: KS %x => Trans %x", 'A'+(KeySym-KEYSYM_a), KeySym, Translated);
 137         }
 138
 139         // == 2 :: FIRE
 140         if( bPress == 2 )
 141         {
 142                 if( Translated )
 143                 {
 144                         char    buf[6];
 145                          int    len;
 146
 147                         // Encode and send
 148                         len = WriteUTF8(buf, Translated);
 149
 150                         _SysDebug("Keystroke %x:%x translated to '%.*s'", KeySym, Translated, len, buf);
 151                         _SysWrite(giPTYHandle, buf, len);
 152
 153                         return 0;
 154                 }
 155
 156                 // No translation, look for escape sequences to send
 157                 const char *str = NULL;
 158                 switch(KeySym)
 159                 {
 160                 case KEYSYM_LEFTARROW:
 161                         str = "\x1b[D";
 162                         break;
 163                 case KEYSYM_RIGHTARROW:
 164                         str = "\x1b[C";
 165                         break;
 166                 case KEYSYM_UPARROW:
 167                         str = "\x1b[A";
 168                         break;
 169                 case KEYSYM_DOWNARROW:
 170                         str = "\x1b[B";
 171                         break;
 172                 }
 173                 if( str )
 174                 {
 175                         _SysWrite(giPTYHandle, str, strlen(str));
 176                 }
 177         }
 178         return 0;
 179 }
 180
 181 int Term_MouseHandler(tHWND Window, int bPress, int Button, int Row, int Col)
 182 {
 183         return 0;
 184 }
 185
 186 void Term_HandleOutput(int Len, const char *Buf)
 187 {
 188         // TODO: Handle graphical / accelerated modes
 189
 190          int    ofs = 0;
 191          int    esc_len = 0;
 192
 193         while( ofs < Len )
 194         {
 195                 esc_len = Term_HandleVT100(Len - ofs, Buf + ofs);
 196                 if( esc_len < 0 ) {
 197                         Display_AddText(-esc_len, Buf + ofs);
 198                         esc_len = -esc_len;
 199                 }
 200                 ofs += esc_len;
 201                 //_SysDebug("Len = %i, ofs = %i", Len, ofs);
 202         }
 203
 204         Display_Flush();
 205 }
 206