Claude
61a7338f88
- kte refuses to start when stdin is not a terminal: piped bytes were executed as editor commands (C-k s plus a path writes a file), and after EOF the loop spun at full CPU with no way to quit. - The terminal frontend handles all pending input before drawing (a paste used to cost a frame and a full redraw per character) and redraws only after input, a resize or deferred opens, else once a second. The renderer caches, per row and buffer version, where the horizontally scrolled part of a line starts and the cursor's render column, instead of rescanning the line every frame. Idle CPU with the cursor at the end of a 20 MB line: one full core -> ~1%. - Buffers with a virtual name (+HELP+) are not journaled and saving one asks for a file name; it used to write ./+HELP+ and journal under that path. - Yank with a repeat count is capped at 256 MiB in total instead of reserving count x size bytes (C-u 1000000 C-y of a large kill). - Remove an overload clang reports as unused (-Werror on macOS). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015rcVQiiWyTzoNrsvLSaAfB
46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
/*
|
|
* TerminalFrontend - couples TerminalInputHandler + TerminalRenderer and owns ncurses lifecycle
|
|
*/
|
|
#pragma once
|
|
#include <chrono>
|
|
#include <termios.h>
|
|
#include <signal.h>
|
|
|
|
#include "Frontend.h"
|
|
#include "TerminalInputHandler.h"
|
|
#include "TerminalRenderer.h"
|
|
|
|
|
|
class TerminalFrontend final : public Frontend {
|
|
public:
|
|
TerminalFrontend() = default;
|
|
|
|
~TerminalFrontend() override = default;
|
|
|
|
// Configurable ESC key delay (ms) for ncurses' set_escdelay().
|
|
// Controls how long ncurses waits to distinguish ESC vs. meta sequences.
|
|
// Adjust if your terminal needs a different threshold.
|
|
static constexpr int kEscDelayMs = 50;
|
|
|
|
bool Init(int &argc, char **argv, Editor &ed) override;
|
|
|
|
void Step(Editor &ed, bool &running) override;
|
|
|
|
void Shutdown() override;
|
|
|
|
private:
|
|
TerminalInputHandler input_{};
|
|
TerminalRenderer renderer_{};
|
|
int prev_r_ = 0;
|
|
int prev_c_ = 0;
|
|
// Redraw only when something may have changed (see Step).
|
|
bool first_frame_ = true;
|
|
std::chrono::steady_clock::time_point last_draw_{};
|
|
// Saved terminal attributes to restore on shutdown
|
|
bool have_orig_tio_ = false;
|
|
struct termios orig_tio_{};
|
|
// Saved SIGINT handler to restore on shutdown
|
|
bool have_old_sigint_ = false;
|
|
struct sigaction old_sigint_{};
|
|
};
|