Kyle Isom
78b9345799
- Introduced `SwapManager` for buffering and writing incremental edits to sidecar `.kte.swp` files. - Implemented basic operations: insertion, deletion, split, join, and checkpointing. - Added recovery design doc (`docs/plans/swap-files.md`). - Updated editor initialization to integrate `SwapManager` instance for crash recovery across buffers.
105 lines
2.3 KiB
C++
105 lines
2.3 KiB
C++
#include <ncurses.h>
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#include <termios.h>
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#include <unistd.h>
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#include "TerminalFrontend.h"
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#include "Command.h"
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#include "Editor.h"
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bool
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TerminalFrontend::Init(Editor &ed)
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{
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// Ensure Control keys reach the app: disable XON/XOFF and dsusp/susp bindings (e.g., ^S/^Q, ^Y on macOS)
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{
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struct termios tio{};
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if (tcgetattr(STDIN_FILENO, &tio) == 0) {
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// Save original to restore on shutdown
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orig_tio_ = tio;
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have_orig_tio_ = true;
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// Disable software flow control so C-s/C-q work
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tio.c_iflag &= static_cast<unsigned long>(~IXON);
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#ifdef IXOFF
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tio.c_iflag &= static_cast<unsigned long>(~IXOFF);
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#endif
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// Disable dsusp/susp characters so C-y (VDSUSP on macOS) and C-z don't signal-stop the app
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#ifdef _POSIX_VDISABLE
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#ifdef VSUSP
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tio.c_cc[VSUSP] = _POSIX_VDISABLE;
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#endif
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#ifdef VDSUSP
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tio.c_cc[VDSUSP] = _POSIX_VDISABLE;
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#endif
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#endif
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(void) tcsetattr(STDIN_FILENO, TCSANOW, &tio);
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}
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}
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initscr();
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cbreak();
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noecho();
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keypad(stdscr, TRUE);
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// Enable 8-bit meta key sequences (Alt/ESC-prefix handling in terminals)
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meta(stdscr, TRUE);
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// Make ESC key sequences resolve quickly so ESC+<key> works as meta
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#ifdef set_escdelay
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set_escdelay(50);
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#endif
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nodelay(stdscr, TRUE);
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curs_set(1);
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// Enable mouse support if available
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mouseinterval(0);
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mousemask(ALL_MOUSE_EVENTS, nullptr);
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int r = 0, c = 0;
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getmaxyx(stdscr, r, c);
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prev_r_ = r;
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prev_c_ = c;
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ed.SetDimensions(static_cast<std::size_t>(r), static_cast<std::size_t>(c));
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// Attach editor to input handler for editor-owned features (e.g., universal argument)
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input_.Attach(&ed);
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return true;
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}
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void
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TerminalFrontend::Step(Editor &ed, bool &running)
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{
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// Handle resize and keep editor dimensions synced
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int r, c;
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getmaxyx(stdscr, r, c);
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if (r != prev_r_ || c != prev_c_) {
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resizeterm(r, c);
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clear();
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prev_r_ = r;
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prev_c_ = c;
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}
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ed.SetDimensions(static_cast<std::size_t>(r), static_cast<std::size_t>(c));
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MappedInput mi;
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if (input_.Poll(mi)) {
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if (mi.hasCommand) {
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Execute(ed, mi.id, mi.arg, mi.count);
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}
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} else {
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// Avoid busy loop
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usleep(1000);
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}
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if (ed.QuitRequested()) {
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running = false;
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}
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renderer_.Draw(ed);
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}
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void
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TerminalFrontend::Shutdown()
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{
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// Restore original terminal settings if we changed them
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if (have_orig_tio_) {
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(void) tcsetattr(STDIN_FILENO, TCSANOW, &orig_tio_);
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have_orig_tio_ = false;
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}
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endwin();
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} |