| 25 | } |
| 26 | |
| 27 | bool Term::Platform::read_raw(char* s) { |
| 28 | //Do nothing when TTY is not connected. |
| 29 | if (!is_stdin_a_tty()) { |
| 30 | return false; |
| 31 | } |
| 32 | #ifdef _WIN32 |
| 33 | DWORD n_read = 0; |
| 34 | GetNumberOfConsoleInputEvents(GetStdHandle(STD_INPUT_HANDLE), &n_read); |
| 35 | if (n_read >= 1) { |
| 36 | INPUT_RECORD buf; |
| 37 | if (!ReadConsoleInputW(GetStdHandle(STD_INPUT_HANDLE), &buf, 1, &n_read)) { |
| 38 | throw Exception("ReadConsoleInput() failed."); |
| 39 | } |
| 40 | if (n_read == 1) { |
| 41 | switch (buf.EventType) { |
| 42 | case KEY_EVENT: { |
| 43 | WORD skip = buf.Event.KeyEvent.wVirtualKeyCode; //Skip them for now. |
| 44 | if (skip == VK_SHIFT || skip == VK_LWIN || skip == VK_RWIN || skip == VK_APPS |
| 45 | || skip == VK_CONTROL || skip == VK_MENU || skip == VK_CAPITAL) { |
| 46 | return false; |
| 47 | } |
| 48 | if (buf.Event.KeyEvent.bKeyDown) { |
| 49 | *s = buf.Event.KeyEvent.uChar.AsciiChar; |
| 50 | return true; |
| 51 | } else { |
| 52 | return false; |
| 53 | } |
| 54 | } |
| 55 | case FOCUS_EVENT: |
| 56 | case MENU_EVENT: |
| 57 | case MOUSE_EVENT: |
| 58 | case WINDOW_BUFFER_SIZE_EVENT: |
| 59 | default: |
| 60 | return false; |
| 61 | } |
| 62 | } else { |
| 63 | throw Exception("kbhit() and ReadConsoleInput() inconsistent."); |
| 64 | } |
| 65 | } else { |
| 66 | return false; |
| 67 | } |
| 68 | #else |
| 69 | ::ssize_t nread = ::read(0, s, 1); |
| 70 | if (nread == -1 && errno != EAGAIN) { |
| 71 | throw Term::Exception("read() failed"); |
| 72 | } |
| 73 | return nread == 1; |
| 74 | #endif |
| 75 | } |