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Diffstat (limited to 'src/terminal_chat_console.cpp')
| -rw-r--r-- | src/terminal_chat_console.cpp | 452 |
1 files changed, 452 insertions, 0 deletions
diff --git a/src/terminal_chat_console.cpp b/src/terminal_chat_console.cpp new file mode 100644 index 000000000..ac06285eb --- /dev/null +++ b/src/terminal_chat_console.cpp @@ -0,0 +1,452 @@ +/* +Minetest +Copyright (C) 2015 est31 <MTest31@outlook.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "config.h" +#if USE_CURSES +#include "version.h" +#include "terminal_chat_console.h" +#include "porting.h" +#include "settings.h" +#include "util/numeric.h" +#include "util/string.h" + +TerminalChatConsole g_term_console; + +// include this last to avoid any conflicts +// (likes to set macros to common names, conflicting various stuff) +#if CURSES_HAVE_NCURSESW_NCURSES_H +#include <ncursesw/ncurses.h> +#elif CURSES_HAVE_NCURSESW_CURSES_H +#include <ncursesw/curses.h> +#elif CURSES_HAVE_CURSES_H +#include <curses.h> +#elif CURSES_HAVE_NCURSES_H +#include <ncurses.h> +#elif CURSES_HAVE_NCURSES_NCURSES_H +#include <ncurses/ncurses.h> +#elif CURSES_HAVE_NCURSES_CURSES_H +#include <ncurses/curses.h> +#endif + +// Some functions to make drawing etc position independent +static bool reformat_backend(ChatBackend *backend, int rows, int cols) +{ + if (rows < 2) + return false; + backend->reformat(cols, rows - 2); + return true; +} + +static void move_for_backend(int row, int col) +{ + move(row + 1, col); +} + +void TerminalChatConsole::initOfCurses() +{ + initscr(); + cbreak(); //raw(); + noecho(); + keypad(stdscr, TRUE); + nodelay(stdscr, TRUE); + timeout(100); + + // To make esc not delay up to one second. According to the internet, + // this is the value vim uses, too. + set_escdelay(25); + + getmaxyx(stdscr, m_rows, m_cols); + m_can_draw_text = reformat_backend(&m_chat_backend, m_rows, m_cols); +} + +void TerminalChatConsole::deInitOfCurses() +{ + endwin(); +} + +void *TerminalChatConsole::run() +{ + BEGIN_DEBUG_EXCEPTION_HANDLER + + std::cout << "========================" << std::endl; + std::cout << "Begin log output over terminal" + << " (no stdout/stderr backlog during that)" << std::endl; + // Make the loggers to stdout/stderr shut up. + // Go over our own loggers instead. + LogLevelMask err_mask = g_logger.removeOutput(&stderr_output); + LogLevelMask out_mask = g_logger.removeOutput(&stdout_output); + + g_logger.addOutput(&m_log_output); + + // Inform the server of our nick + m_chat_interface->command_queue.push_back( + new ChatEventNick(CET_NICK_ADD, m_nick)); + + { + // Ensures that curses is deinitialized even on an exception being thrown + CursesInitHelper helper(this); + + while (!stopRequested()) { + + int ch = getch(); + if (stopRequested()) + break; + + step(ch); + } + } + + if (m_kill_requested) + *m_kill_requested = true; + + g_logger.removeOutput(&m_log_output); + g_logger.addOutputMasked(&stderr_output, err_mask); + g_logger.addOutputMasked(&stdout_output, out_mask); + + std::cout << "End log output over terminal" + << " (no stdout/stderr backlog during that)" << std::endl; + std::cout << "========================" << std::endl; + + END_DEBUG_EXCEPTION_HANDLER + + return NULL; +} + +void TerminalChatConsole::typeChatMessage(const std::wstring &msg) +{ + // Discard empty line + if (msg.empty()) + return; + + // Send to server + m_chat_interface->command_queue.push_back( + new ChatEventChat(m_nick, msg)); + + // Print if its a command (gets eaten by server otherwise) + if (msg[0] == L'/') { + m_chat_backend.addMessage(L"", (std::wstring)L"Issued command: " + msg); + } +} + +void TerminalChatConsole::handleInput(int ch, bool &complete_redraw_needed) +{ + // Helpful if you want to collect key codes that aren't documented + /*if (ch != ERR) { + m_chat_backend.addMessage(L"", + (std::wstring)L"Pressed key " + utf8_to_wide( + std::string(keyname(ch)) + " (code " + itos(ch) + ")")); + complete_redraw_needed = true; + }//*/ + + // All the key codes below are compatible to xterm + // Only add new ones if you have tried them there, + // to ensure compatibility with not just xterm but the wide + // range of terminals that are compatible to xterm. + + switch (ch) { + case ERR: // no input + break; + case 27: // ESC + // Toggle ESC mode + m_esc_mode = !m_esc_mode; + break; + case KEY_PPAGE: + m_chat_backend.scrollPageUp(); + complete_redraw_needed = true; + break; + case KEY_NPAGE: + m_chat_backend.scrollPageDown(); + complete_redraw_needed = true; + break; + case KEY_ENTER: + case '\r': + case '\n': { + std::wstring text = m_chat_backend.getPrompt().submit(); + typeChatMessage(text); + break; + } + case KEY_UP: + m_chat_backend.getPrompt().historyPrev(); + break; + case KEY_DOWN: + m_chat_backend.getPrompt().historyNext(); + break; + case KEY_LEFT: + // Left pressed + // move character to the left + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_MOVE, + ChatPrompt::CURSOROP_DIR_LEFT, + ChatPrompt::CURSOROP_SCOPE_CHARACTER); + break; + case 545: + // Ctrl-Left pressed + // move word to the left + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_MOVE, + ChatPrompt::CURSOROP_DIR_LEFT, + ChatPrompt::CURSOROP_SCOPE_WORD); + break; + case KEY_RIGHT: + // Right pressed + // move character to the right + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_MOVE, + ChatPrompt::CURSOROP_DIR_RIGHT, + ChatPrompt::CURSOROP_SCOPE_CHARACTER); + break; + case 560: + // Ctrl-Right pressed + // move word to the right + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_MOVE, + ChatPrompt::CURSOROP_DIR_RIGHT, + ChatPrompt::CURSOROP_SCOPE_WORD); + break; + case KEY_HOME: + // Home pressed + // move to beginning of line + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_MOVE, + ChatPrompt::CURSOROP_DIR_LEFT, + ChatPrompt::CURSOROP_SCOPE_LINE); + break; + case KEY_END: + // End pressed + // move to end of line + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_MOVE, + ChatPrompt::CURSOROP_DIR_RIGHT, + ChatPrompt::CURSOROP_SCOPE_LINE); + break; + case KEY_BACKSPACE: + case '\b': + case 127: + // Backspace pressed + // delete character to the left + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_DELETE, + ChatPrompt::CURSOROP_DIR_LEFT, + ChatPrompt::CURSOROP_SCOPE_CHARACTER); + break; + case KEY_DC: + // Delete pressed + // delete character to the right + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_DELETE, + ChatPrompt::CURSOROP_DIR_RIGHT, + ChatPrompt::CURSOROP_SCOPE_CHARACTER); + break; + case 519: + // Ctrl-Delete pressed + // delete word to the right + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_DELETE, + ChatPrompt::CURSOROP_DIR_RIGHT, + ChatPrompt::CURSOROP_SCOPE_WORD); + break; + case 21: + // Ctrl-U pressed + // kill line to left end + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_DELETE, + ChatPrompt::CURSOROP_DIR_LEFT, + ChatPrompt::CURSOROP_SCOPE_LINE); + break; + case 11: + // Ctrl-K pressed + // kill line to right end + m_chat_backend.getPrompt().cursorOperation( + ChatPrompt::CURSOROP_DELETE, + ChatPrompt::CURSOROP_DIR_RIGHT, + ChatPrompt::CURSOROP_SCOPE_LINE); + break; + case KEY_TAB: + // Tab pressed + // Nick completion + m_chat_backend.getPrompt().nickCompletion(m_nicks, false); + break; + default: + // Add character to the prompt, + // assuming UTF-8. + if (IS_UTF8_MULTB_START(ch)) { + m_pending_utf8_bytes.append(1, (char)ch); + m_utf8_bytes_to_wait += UTF8_MULTB_START_LEN(ch) - 1; + } else if (m_utf8_bytes_to_wait != 0) { + m_pending_utf8_bytes.append(1, (char)ch); + m_utf8_bytes_to_wait--; + if (m_utf8_bytes_to_wait == 0) { + std::wstring w = utf8_to_wide(m_pending_utf8_bytes); + m_pending_utf8_bytes = ""; + // hopefully only one char in the wstring... + for (size_t i = 0; i < w.size(); i++) { + m_chat_backend.getPrompt().input(w.c_str()[i]); + } + } + } else if (IS_ASCII_PRINTABLE_CHAR(ch)) { + m_chat_backend.getPrompt().input(ch); + } else { + // Silently ignore characters we don't handle + + //warningstream << "Pressed invalid character '" + // << keyname(ch) << "' (code " << itos(ch) << ")" << std::endl; + } + break; + } +} + +void TerminalChatConsole::step(int ch) +{ + bool complete_redraw_needed = false; + + // empty queues + while (!m_chat_interface->outgoing_queue.empty()) { + ChatEvent *evt = m_chat_interface->outgoing_queue.pop_frontNoEx(); + switch (evt->type) { + case CET_NICK_REMOVE: + m_nicks.remove(((ChatEventNick *)evt)->nick); + break; + case CET_NICK_ADD: + m_nicks.push_back(((ChatEventNick *)evt)->nick); + break; + case CET_CHAT: + complete_redraw_needed = true; + // This is only used for direct replies from commands + // or for lua's print() functionality + m_chat_backend.addMessage(L"", ((ChatEventChat *)evt)->evt_msg); + break; + case CET_TIME_INFO: + ChatEventTimeInfo *tevt = (ChatEventTimeInfo *)evt; + m_game_time = tevt->game_time; + m_time_of_day = tevt->time; + }; + delete evt; + } + while (!m_log_output.queue.empty()) { + complete_redraw_needed = true; + std::pair<LogLevel, std::string> p = m_log_output.queue.pop_frontNoEx(); + if (p.first > m_log_level) + continue; + + m_chat_backend.addMessage( + utf8_to_wide(Logger::getLevelLabel(p.first)), + utf8_to_wide(p.second)); + } + + // handle input + if (!m_esc_mode) { + handleInput(ch, complete_redraw_needed); + } else { + switch (ch) { + case ERR: // no input + break; + case 27: // ESC + // Toggle ESC mode + m_esc_mode = !m_esc_mode; + break; + case 'L': + m_log_level--; + m_log_level = MYMAX(m_log_level, LL_NONE + 1); // LL_NONE isn't accessible + break; + case 'l': + m_log_level++; + m_log_level = MYMIN(m_log_level, LL_MAX - 1); + break; + } + } + + // was there a resize? + int xn, yn; + getmaxyx(stdscr, yn, xn); + if (xn != m_cols || yn != m_rows) { + m_cols = xn; + m_rows = yn; + m_can_draw_text = reformat_backend(&m_chat_backend, m_rows, m_cols); + complete_redraw_needed = true; + } + + // draw title + move(0, 0); + clrtoeol(); + addstr(PROJECT_NAME_C); + addstr(" "); + addstr(g_version_hash); + + u32 minutes = m_time_of_day % 1000; + u32 hours = m_time_of_day / 1000; + minutes = (float)minutes / 1000 * 60; + + if (m_game_time) + printw(" | Game %d Time of day %02d:%02d ", + m_game_time, hours, minutes); + + // draw text + if (complete_redraw_needed && m_can_draw_text) + draw_text(); + + // draw prompt + if (!m_esc_mode) { + // normal prompt + ChatPrompt& prompt = m_chat_backend.getPrompt(); + std::string prompt_text = wide_to_utf8(prompt.getVisiblePortion()); + move(m_rows - 1, 0); + clrtoeol(); + addstr(prompt_text.c_str()); + // Draw cursor + s32 cursor_pos = prompt.getVisibleCursorPosition(); + if (cursor_pos >= 0) { + move(m_rows - 1, cursor_pos); + } + } else { + // esc prompt + move(m_rows - 1, 0); + clrtoeol(); + printw("[ESC] Toggle ESC mode |" + " [CTRL+C] Shut down |" + " (L) in-, (l) decrease loglevel %s", + Logger::getLevelLabel((LogLevel) m_log_level).c_str()); + } + + refresh(); +} + +void TerminalChatConsole::draw_text() +{ + ChatBuffer& buf = m_chat_backend.getConsoleBuffer(); + for (u32 row = 0; row < buf.getRows(); row++) { + move_for_backend(row, 0); + clrtoeol(); + const ChatFormattedLine& line = buf.getFormattedLine(row); + if (line.fragments.empty()) + continue; + for (u32 i = 0; i < line.fragments.size(); ++i) { + const ChatFormattedFragment& fragment = line.fragments[i]; + addstr(wide_to_utf8(fragment.text).c_str()); + } + } +} + +void TerminalChatConsole::stopAndWaitforThread() +{ + clearKillStatus(); + stop(); + wait(); +} + +#endif |