zcatui v1.2 - Sistema de eventos integrado (crossterm-style)
Eventos de teclado: - Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind - Soporte para todas las teclas: caracteres, F1-F12, navegación, control - Modificadores: Ctrl, Alt, Shift, Super Eventos de ratón: - MouseEvent, MouseEventKind, MouseButton - Click, release, drag, scroll (up/down/left/right) - Posición (column, row) con modificadores - Protocolos: SGR extended y X10 legacy Parser de escape sequences: - CSI sequences (arrows, F-keys, navigation) - SS3 sequences (F1-F4 alternativo) - SGR mouse protocol (mejores coordenadas) - X10 mouse protocol (compatibilidad) - Focus events, bracketed paste Cursor control: - Visibility: show/hide - Blinking: enable/disable - Styles: block, underline, bar (blinking/steady) - Position: moveTo, moveUp/Down/Left/Right - Save/restore position Terminal integrado: - pollEvent(timeout_ms) - polling con timeout - readEvent() - blocking read - enableMouseCapture/disableMouseCapture - enableFocusChange/disableFocusChange - enableBracketedPaste/disableBracketedPaste Ejemplo interactivo: - examples/events_demo.zig Tests: 47 (29 nuevos para eventos y cursor) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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CLAUDE.md
40
CLAUDE.md
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@ -2,22 +2,24 @@
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> **Última actualización**: 2025-12-08
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> **Última actualización**: 2025-12-08
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> **Lenguaje**: Zig 0.15.2
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> **Lenguaje**: Zig 0.15.2
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> **Inspiración**: [ratatui](https://github.com/ratatui/ratatui) (Rust TUI library)
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> **Inspiración**: [ratatui](https://github.com/ratatui/ratatui) + [crossterm](https://github.com/crossterm-rs/crossterm) (Rust)
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> **Estado**: v1.1 - Implementación completa + optimizaciones de performance
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> **Estado**: v1.2 - Renderizado + Eventos integrados
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## Descripción del Proyecto
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## Descripción del Proyecto
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**zcatui** es una librería para crear interfaces de usuario en terminal (TUI) en Zig puro, inspirada en ratatui de Rust.
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**zcatui** es una librería para crear interfaces de usuario en terminal (TUI) en Zig puro, combinando las capacidades de ratatui (renderizado) y crossterm (eventos) de Rust.
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**Objetivo**: Proveer una API idiomática Zig para construir aplicaciones TUI con widgets, layouts, y estilos, manteniendo la filosofía de Zig: simple, explícito, y sin magia.
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**Objetivo**: Proveer una API idiomática Zig para construir aplicaciones TUI interactivas con widgets, layouts, estilos, y manejo de eventos de teclado/ratón, manteniendo la filosofía de Zig: simple, explícito, y sin magia.
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**Nombre**: "zcat" + "ui" (un guiño a ratatui y la mascota de Zig)
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**Nombre**: "zcat" + "ui" (un guiño a ratatui y la mascota de Zig)
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**Diferencia con Rust**: En Rust, ratatui y crossterm son librerías separadas. En zcatui, todo está integrado en una sola librería.
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---
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---
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## Estado Actual del Proyecto
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## Estado Actual del Proyecto
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### Implementación Completa (v1.1) - 2025-12-08
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### Implementación Completa (v1.2) - 2025-12-08
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| Componente | Estado | Archivo |
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| Componente | Estado | Archivo |
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|------------|--------|---------|
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|------------|--------|---------|
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@ -28,6 +30,11 @@
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| Layout + Constraint | ✅ | `src/layout.zig` |
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| Layout + Constraint | ✅ | `src/layout.zig` |
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| Terminal | ✅ | `src/terminal.zig` |
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| Terminal | ✅ | `src/terminal.zig` |
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| Backend ANSI | ✅ | `src/backend/` |
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| Backend ANSI | ✅ | `src/backend/` |
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| **Eventos (crossterm-style)** | ✅ Completo | |
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| Event, KeyEvent, MouseEvent | ✅ | `src/event.zig` |
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| EventReader + polling | ✅ | `src/event/reader.zig` |
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| Escape sequence parser | ✅ | `src/event/parse.zig` |
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| Cursor control | ✅ | `src/cursor.zig` |
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| **Symbols** | ✅ Completo | `src/symbols/` |
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| **Symbols** | ✅ Completo | `src/symbols/` |
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| Line drawing | ✅ | `line.zig` |
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| Line drawing | ✅ | `line.zig` |
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| Border sets | ✅ | `border.zig` |
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| Border sets | ✅ | `border.zig` |
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@ -96,14 +103,18 @@ Como ratatui, usamos **renderizado inmediato con buffers intermedios**:
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zcatui/
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zcatui/
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├── src/
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├── src/
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│ ├── root.zig # Entry point, re-exports públicos
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│ ├── root.zig # Entry point, re-exports públicos
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│ ├── terminal.zig # Terminal abstraction
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│ ├── terminal.zig # Terminal + eventos integrados
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│ ├── buffer.zig # Buffer + Cell + Rect
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│ ├── buffer.zig # Buffer + Cell + Rect
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│ ├── layout.zig # Layout, Constraint, Direction
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│ ├── layout.zig # Layout, Constraint, Direction
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│ ├── style.zig # Color, Style, Modifier
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│ ├── style.zig # Color, Style, Modifier
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│ ├── text.zig # Text, Line, Span, Alignment
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│ ├── text.zig # Text, Line, Span, Alignment
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│ ├── event.zig # Event, KeyEvent, MouseEvent, KeyCode
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│ ├── cursor.zig # Cursor control (shapes, position)
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│ ├── event/
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│ │ ├── reader.zig # EventReader + polling
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│ │ └── parse.zig # Escape sequence parser
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│ ├── backend/
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│ ├── backend/
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│ │ ├── backend.zig # Backend interface
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│ │ └── backend.zig # ANSI escape sequences backend
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│ │ └── ansi.zig # ANSI escape sequences
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│ ├── symbols/
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│ ├── symbols/
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│ │ ├── symbols.zig # Re-exports
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│ │ ├── symbols.zig # Re-exports
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│ │ ├── line.zig # Line drawing characters
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│ │ ├── line.zig # Line drawing characters
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@ -128,6 +139,9 @@ zcatui/
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│ ├── chart.zig # Line/scatter/bar graphs
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│ ├── chart.zig # Line/scatter/bar graphs
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│ ├── calendar.zig # Monthly calendar
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│ ├── calendar.zig # Monthly calendar
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│ └── clear.zig # Clear/reset area
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│ └── clear.zig # Clear/reset area
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├── examples/
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│ ├── hello.zig # Minimal example
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│ └── events_demo.zig # Interactive keyboard/mouse demo
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├── docs/
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├── docs/
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│ ├── ARCHITECTURE.md # Arquitectura detallada
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│ ├── ARCHITECTURE.md # Arquitectura detallada
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│ ├── WIDGETS.md # Documentación de widgets
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│ ├── WIDGETS.md # Documentación de widgets
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@ -449,6 +463,16 @@ zig build test --summary all # Tests con detalles
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## Historial de Desarrollo
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## Historial de Desarrollo
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### 2025-12-08 - v1.2 (Eventos - crossterm-style)
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- Sistema de eventos integrado (teclado + ratón)
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- Event, KeyEvent, MouseEvent, KeyCode types
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- EventReader con polling y timeout
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- Parser de escape sequences (CSI, SS3, SGR mouse, X10 mouse)
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- Cursor control (shapes, blinking, save/restore)
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- Terminal integrado: pollEvent(), enableMouseCapture(), enableFocusChange()
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- Ejemplo interactivo: events_demo.zig
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- Tests: 47 tests (29 nuevos para eventos)
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### 2025-12-08 - v1.1 (Performance)
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### 2025-12-08 - v1.1 (Performance)
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- Symbol: tipo compacto UTF-8 (4 bytes max)
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- Symbol: tipo compacto UTF-8 (4 bytes max)
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- Buffer.diff(): renderizado diferencial eficiente
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- Buffer.diff(): renderizado diferencial eficiente
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19
build.zig
19
build.zig
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@ -42,4 +42,23 @@ pub fn build(b: *std.Build) void {
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run_hello.step.dependOn(b.getInstallStep());
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run_hello.step.dependOn(b.getInstallStep());
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const hello_step = b.step("hello", "Ejecutar ejemplo hello");
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const hello_step = b.step("hello", "Ejecutar ejemplo hello");
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hello_step.dependOn(&run_hello.step);
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hello_step.dependOn(&run_hello.step);
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// Ejemplo: events_demo
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const events_demo_exe = b.addExecutable(.{
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.name = "events-demo",
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.root_module = b.createModule(.{
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.root_source_file = b.path("examples/events_demo.zig"),
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.target = target,
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.optimize = optimize,
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.imports = &.{
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.{ .name = "zcatui", .module = zcatui_mod },
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},
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}),
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});
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b.installArtifact(events_demo_exe);
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const run_events_demo = b.addRunArtifact(events_demo_exe);
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run_events_demo.step.dependOn(b.getInstallStep());
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const events_demo_step = b.step("events-demo", "Run events demo");
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events_demo_step.dependOn(&run_events_demo.step);
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}
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}
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258
docs/API.md
258
docs/API.md
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// Terminal
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// Terminal
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const Terminal = zcatui.Terminal;
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const Terminal = zcatui.Terminal;
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// Events (crossterm-style)
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const Event = zcatui.Event;
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const KeyEvent = zcatui.KeyEvent;
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const KeyCode = zcatui.KeyCode;
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const KeyModifiers = zcatui.KeyModifiers;
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const MouseEvent = zcatui.MouseEvent;
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const MouseEventKind = zcatui.MouseEventKind;
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const MouseButton = zcatui.MouseButton;
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// Cursor
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const Cursor = zcatui.Cursor;
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const CursorStyle = zcatui.CursorStyle;
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// Widgets
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// Widgets
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const widgets = zcatui.widgets;
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const widgets = zcatui.widgets;
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const Block = widgets.Block;
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const Block = widgets.Block;
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pub fn size(self: Terminal) struct { width: u16, height: u16 };
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pub fn size(self: Terminal) struct { width: u16, height: u16 };
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pub fn area(self: Terminal) Rect;
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pub fn area(self: Terminal) Rect;
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// Rendering
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pub fn draw(self: *Terminal, render_fn: fn(area: Rect, buf: *Buffer) void) !void;
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pub fn draw(self: *Terminal, render_fn: fn(area: Rect, buf: *Buffer) void) !void;
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pub fn drawWithContext(self: *Terminal, ctx: anytype, render_fn: fn(...) void) !void;
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pub fn clear(self: *Terminal) !void;
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pub fn clear(self: *Terminal) !void;
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pub fn flush(self: *Terminal) !void;
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pub fn flush(self: *Terminal) !void;
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// Cursor
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pub fn hideCursor(self: *Terminal) !void;
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pub fn hideCursor(self: *Terminal) !void;
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pub fn showCursor(self: *Terminal) !void;
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pub fn showCursor(self: *Terminal) !void;
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pub fn setCursorPosition(self: *Terminal, x: u16, y: u16) !void;
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pub fn setCursorPosition(self: *Terminal, x: u16, y: u16) !void;
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pub fn enterAlternateScreen(self: *Terminal) !void;
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// Events (crossterm-style)
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pub fn leaveAlternateScreen(self: *Terminal) !void;
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pub fn pollEvent(self: *Terminal, timeout_ms: ?u32) !?Event;
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pub fn readEvent(self: *Terminal) !Event;
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pub fn enableRawMode(self: *Terminal) !void;
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// Mouse
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pub fn disableRawMode(self: *Terminal) !void;
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pub fn enableMouseCapture(self: *Terminal) !void;
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pub fn disableMouseCapture(self: *Terminal) !void;
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// Focus
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pub fn enableFocusChange(self: *Terminal) !void;
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pub fn disableFocusChange(self: *Terminal) !void;
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// Bracketed paste
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pub fn enableBracketedPaste(self: *Terminal) !void;
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pub fn disableBracketedPaste(self: *Terminal) !void;
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};
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};
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```
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```
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**Ejemplo de uso:**
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**Ejemplo interactivo completo:**
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```zig
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```zig
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pub fn main() !void {
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pub fn main() !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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var term = try Terminal.init(allocator);
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var term = try Terminal.init(allocator);
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defer term.deinit();
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defer term.deinit();
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try term.enterAlternateScreen();
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// Enable mouse (optional)
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defer term.leaveAlternateScreen() catch {};
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try term.enableMouseCapture();
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try term.hideCursor();
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var running = true;
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defer term.showCursor() catch {};
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while (running) {
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try term.draw(render);
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try term.draw(struct {
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// Poll for events with 100ms timeout
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pub fn render(area: Rect, buf: *Buffer) void {
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if (try term.pollEvent(100)) |event| {
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const block = Block.bordered().title("Hello zcatui!");
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switch (event) {
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block.render(area, buf);
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.key => |key| {
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if (key.code == .esc) running = false;
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if (key.code.isChar('q')) running = false;
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},
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.mouse => |mouse| {
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if (mouse.kind == .down) handleClick(mouse.column, mouse.row);
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},
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.resize => |size| try term.resize(size.width, size.height),
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else => {},
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}
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}
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}
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}
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}.render);
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// Wait for input...
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}
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}
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```
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```
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---
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---
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## Events (crossterm-style)
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### Event
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```zig
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pub const Event = union(enum) {
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key: KeyEvent,
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mouse: MouseEvent,
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resize: ResizeEvent,
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focus_gained,
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focus_lost,
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paste: []const u8,
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};
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```
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### KeyEvent
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```zig
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pub const KeyEvent = struct {
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code: KeyCode,
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modifiers: KeyModifiers,
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kind: KeyEventKind,
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pub fn char(c: u21) KeyEvent;
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pub fn withMod(code: KeyCode, mods: KeyModifiers) KeyEvent;
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pub fn getChar(self: KeyEvent) ?u21;
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pub fn isCtrl(self: KeyEvent) bool;
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pub fn isAlt(self: KeyEvent) bool;
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pub fn isShift(self: KeyEvent) bool;
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};
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```
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### KeyCode
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```zig
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pub const KeyCode = union(enum) {
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char: u21, // Any unicode character
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f: u8, // F1-F12
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backspace, enter, tab, backtab,
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left, right, up, down,
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home, end, page_up, page_down,
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insert, delete, esc, null_key,
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caps_lock, scroll_lock, num_lock,
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print_screen, pause, menu,
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media: MediaKeyCode,
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modifier: ModifierKeyCode,
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pub fn isChar(self: KeyCode, c: u21) bool;
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};
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```
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### KeyModifiers
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```zig
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pub const KeyModifiers = packed struct {
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shift: bool = false,
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ctrl: bool = false,
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alt: bool = false,
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super: bool = false,
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pub const none: KeyModifiers = .{};
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pub const SHIFT: KeyModifiers = .{ .shift = true };
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pub const CTRL: KeyModifiers = .{ .ctrl = true };
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pub const ALT: KeyModifiers = .{ .alt = true };
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pub fn combine(self: KeyModifiers, other: KeyModifiers) KeyModifiers;
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pub fn any(self: KeyModifiers) bool;
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pub fn isEmpty(self: KeyModifiers) bool;
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};
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```
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### MouseEvent
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```zig
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pub const MouseEvent = struct {
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kind: MouseEventKind,
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button: MouseButton,
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column: u16,
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row: u16,
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modifiers: KeyModifiers,
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pub fn down(button: MouseButton, col: u16, row: u16) MouseEvent;
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pub fn up(button: MouseButton, col: u16, row: u16) MouseEvent;
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pub fn moved(col: u16, row: u16) MouseEvent;
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pub fn isClick(self: MouseEvent) bool;
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pub fn isLeft(self: MouseEvent) bool;
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pub fn isRight(self: MouseEvent) bool;
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};
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```
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||||||
|
|
||||||
|
### MouseEventKind
|
||||||
|
|
||||||
|
```zig
|
||||||
|
pub const MouseEventKind = enum {
|
||||||
|
down, up, drag, moved,
|
||||||
|
scroll_down, scroll_up,
|
||||||
|
scroll_left, scroll_right,
|
||||||
|
|
||||||
|
pub fn isScroll(self: MouseEventKind) bool;
|
||||||
|
pub fn isButton(self: MouseEventKind) bool;
|
||||||
|
};
|
||||||
|
```
|
||||||
|
|
||||||
|
### MouseButton
|
||||||
|
|
||||||
|
```zig
|
||||||
|
pub const MouseButton = enum {
|
||||||
|
left, right, middle, none,
|
||||||
|
};
|
||||||
|
```
|
||||||
|
|
||||||
|
**Ejemplo de manejo de eventos:**
|
||||||
|
```zig
|
||||||
|
if (try term.pollEvent(100)) |event| {
|
||||||
|
switch (event) {
|
||||||
|
.key => |key| {
|
||||||
|
// Ctrl+C
|
||||||
|
if (key.code.isChar('c') and key.isCtrl()) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
// Arrow keys
|
||||||
|
switch (key.code) {
|
||||||
|
.up => state.previous(),
|
||||||
|
.down => state.next(),
|
||||||
|
.enter => state.select(),
|
||||||
|
else => {},
|
||||||
|
}
|
||||||
|
},
|
||||||
|
.mouse => |mouse| {
|
||||||
|
switch (mouse.kind) {
|
||||||
|
.down => {
|
||||||
|
if (mouse.isLeft()) selectAt(mouse.column, mouse.row);
|
||||||
|
},
|
||||||
|
.scroll_up => state.scrollUp(),
|
||||||
|
.scroll_down => state.scrollDown(),
|
||||||
|
else => {},
|
||||||
|
}
|
||||||
|
},
|
||||||
|
.resize => |size| {
|
||||||
|
try term.resize(size.width, size.height);
|
||||||
|
},
|
||||||
|
.focus_gained => {},
|
||||||
|
.focus_lost => {},
|
||||||
|
.paste => |text| handlePaste(text),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## Cursor
|
||||||
|
|
||||||
|
```zig
|
||||||
|
pub const CursorStyle = enum {
|
||||||
|
default,
|
||||||
|
blinking_block,
|
||||||
|
steady_block,
|
||||||
|
blinking_underline,
|
||||||
|
steady_underline,
|
||||||
|
blinking_bar,
|
||||||
|
steady_bar,
|
||||||
|
};
|
||||||
|
|
||||||
|
pub const Cursor = struct {
|
||||||
|
pub fn init() Cursor;
|
||||||
|
|
||||||
|
// Visibility
|
||||||
|
pub fn hide(self: *Cursor) !void;
|
||||||
|
pub fn show(self: *Cursor) !void;
|
||||||
|
|
||||||
|
// Blinking
|
||||||
|
pub fn enableBlinking(self: *Cursor) !void;
|
||||||
|
pub fn disableBlinking(self: *Cursor) !void;
|
||||||
|
|
||||||
|
// Style
|
||||||
|
pub fn setStyle(self: *Cursor, style: CursorStyle) !void;
|
||||||
|
|
||||||
|
// Position
|
||||||
|
pub fn moveTo(self: *Cursor, column: u16, row: u16) !void;
|
||||||
|
pub fn moveUp(self: *Cursor, n: u16) !void;
|
||||||
|
pub fn moveDown(self: *Cursor, n: u16) !void;
|
||||||
|
pub fn moveLeft(self: *Cursor, n: u16) !void;
|
||||||
|
pub fn moveRight(self: *Cursor, n: u16) !void;
|
||||||
|
|
||||||
|
// Save/Restore
|
||||||
|
pub fn savePosition(self: *Cursor) !void;
|
||||||
|
pub fn restorePosition(self: *Cursor) !void;
|
||||||
|
};
|
||||||
|
```
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
## Widgets Quick Reference
|
## Widgets Quick Reference
|
||||||
|
|
||||||
| Widget | Constructor | Stateful | Key Methods |
|
| Widget | Constructor | Stateful | Key Methods |
|
||||||
|
|
|
||||||
200
examples/events_demo.zig
Normal file
200
examples/events_demo.zig
Normal file
|
|
@ -0,0 +1,200 @@
|
||||||
|
//! Interactive events demo for zcatui.
|
||||||
|
//!
|
||||||
|
//! Demonstrates keyboard and mouse event handling.
|
||||||
|
//! Press 'q' or ESC to quit.
|
||||||
|
//!
|
||||||
|
//! Run with: zig build run-events-demo
|
||||||
|
|
||||||
|
const std = @import("std");
|
||||||
|
const zcatui = @import("zcatui");
|
||||||
|
|
||||||
|
const Terminal = zcatui.Terminal;
|
||||||
|
const Buffer = zcatui.Buffer;
|
||||||
|
const Rect = zcatui.Rect;
|
||||||
|
const Style = zcatui.Style;
|
||||||
|
const Color = zcatui.Color;
|
||||||
|
const Event = zcatui.Event;
|
||||||
|
const KeyCode = zcatui.KeyCode;
|
||||||
|
const Block = zcatui.widgets.Block;
|
||||||
|
const Borders = zcatui.widgets.Borders;
|
||||||
|
const Layout = zcatui.Layout;
|
||||||
|
const Constraint = zcatui.Constraint;
|
||||||
|
|
||||||
|
/// Application state
|
||||||
|
const AppState = struct {
|
||||||
|
last_event: ?Event = null,
|
||||||
|
key_count: u32 = 0,
|
||||||
|
mouse_x: u16 = 0,
|
||||||
|
mouse_y: u16 = 0,
|
||||||
|
mouse_clicks: u32 = 0,
|
||||||
|
running: bool = true,
|
||||||
|
};
|
||||||
|
|
||||||
|
pub fn main() !void {
|
||||||
|
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
|
||||||
|
defer _ = gpa.deinit();
|
||||||
|
const allocator = gpa.allocator();
|
||||||
|
|
||||||
|
// Initialize terminal
|
||||||
|
var term = try Terminal.init(allocator);
|
||||||
|
defer term.deinit();
|
||||||
|
|
||||||
|
// Enable mouse capture
|
||||||
|
try term.enableMouseCapture();
|
||||||
|
|
||||||
|
// Enable focus events
|
||||||
|
try term.enableFocusChange();
|
||||||
|
|
||||||
|
var state = AppState{};
|
||||||
|
|
||||||
|
// Main loop
|
||||||
|
while (state.running) {
|
||||||
|
// Draw UI
|
||||||
|
try term.drawWithContext(&state, render);
|
||||||
|
|
||||||
|
// Poll for events (100ms timeout)
|
||||||
|
if (try term.pollEvent(100)) |event| {
|
||||||
|
handleEvent(&state, event);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn handleEvent(state: *AppState, event: Event) void {
|
||||||
|
state.last_event = event;
|
||||||
|
|
||||||
|
switch (event) {
|
||||||
|
.key => |key| {
|
||||||
|
state.key_count += 1;
|
||||||
|
|
||||||
|
// Quit on 'q' or ESC
|
||||||
|
switch (key.code) {
|
||||||
|
.esc => state.running = false,
|
||||||
|
.char => |c| {
|
||||||
|
if (c == 'q' or c == 'Q') {
|
||||||
|
state.running = false;
|
||||||
|
}
|
||||||
|
},
|
||||||
|
else => {},
|
||||||
|
}
|
||||||
|
},
|
||||||
|
.mouse => |mouse| {
|
||||||
|
state.mouse_x = mouse.column;
|
||||||
|
state.mouse_y = mouse.row;
|
||||||
|
if (mouse.kind == .down) {
|
||||||
|
state.mouse_clicks += 1;
|
||||||
|
}
|
||||||
|
},
|
||||||
|
.resize => |_| {
|
||||||
|
// Terminal handles resize automatically
|
||||||
|
},
|
||||||
|
else => {},
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn render(state: *AppState, area: Rect, buf: *Buffer) void {
|
||||||
|
// Create layout: header, content, footer
|
||||||
|
const chunks = Layout.vertical(&.{
|
||||||
|
Constraint.length(3),
|
||||||
|
Constraint.min(0),
|
||||||
|
Constraint.length(3),
|
||||||
|
}).split(area);
|
||||||
|
|
||||||
|
// Header
|
||||||
|
const header = Block.init()
|
||||||
|
.title(" zcatui Events Demo ")
|
||||||
|
.setBorders(Borders.all)
|
||||||
|
.style(Style.default.fg(Color.cyan));
|
||||||
|
header.render(chunks.get(0), buf);
|
||||||
|
|
||||||
|
// Content - show event info
|
||||||
|
renderContent(state, chunks.get(1), buf);
|
||||||
|
|
||||||
|
// Footer
|
||||||
|
const footer_text = "Press 'q' or ESC to quit | Mouse enabled";
|
||||||
|
|
||||||
|
const footer = Block.init()
|
||||||
|
.setBorders(Borders.all)
|
||||||
|
.style(Style.default.fg(Color.blue));
|
||||||
|
const footer_area = chunks.get(2);
|
||||||
|
footer.render(footer_area, buf);
|
||||||
|
|
||||||
|
// Render footer text manually
|
||||||
|
const inner = footer.inner(footer_area);
|
||||||
|
_ = buf.setString(inner.left(), inner.top(), footer_text, Style.default);
|
||||||
|
}
|
||||||
|
|
||||||
|
fn renderContent(state: *AppState, area: Rect, buf: *Buffer) void {
|
||||||
|
const content = Block.init()
|
||||||
|
.title(" Event Info ")
|
||||||
|
.setBorders(Borders.all);
|
||||||
|
content.render(area, buf);
|
||||||
|
|
||||||
|
const inner = content.inner(area);
|
||||||
|
var y = inner.top();
|
||||||
|
|
||||||
|
// Key count
|
||||||
|
var key_buf: [64]u8 = undefined;
|
||||||
|
const key_str = std.fmt.bufPrint(&key_buf, "Key presses: {d}", .{state.key_count}) catch "???";
|
||||||
|
_ = buf.setString(inner.left(), y, key_str, Style.default.fg(Color.green));
|
||||||
|
y += 1;
|
||||||
|
|
||||||
|
// Mouse position
|
||||||
|
var mouse_buf: [64]u8 = undefined;
|
||||||
|
const mouse_str = std.fmt.bufPrint(&mouse_buf, "Mouse position: ({d}, {d})", .{ state.mouse_x, state.mouse_y }) catch "???";
|
||||||
|
_ = buf.setString(inner.left(), y, mouse_str, Style.default.fg(Color.yellow));
|
||||||
|
y += 1;
|
||||||
|
|
||||||
|
// Mouse clicks
|
||||||
|
var clicks_buf: [64]u8 = undefined;
|
||||||
|
const clicks_str = std.fmt.bufPrint(&clicks_buf, "Mouse clicks: {d}", .{state.mouse_clicks}) catch "???";
|
||||||
|
_ = buf.setString(inner.left(), y, clicks_str, Style.default.fg(Color.magenta));
|
||||||
|
y += 2;
|
||||||
|
|
||||||
|
// Last event
|
||||||
|
_ = buf.setString(inner.left(), y, "Last event:", Style.default.bold());
|
||||||
|
y += 1;
|
||||||
|
|
||||||
|
if (state.last_event) |event| {
|
||||||
|
const event_str = formatEvent(event);
|
||||||
|
_ = buf.setString(inner.left() + 2, y, event_str, Style.default.fg(Color.white));
|
||||||
|
} else {
|
||||||
|
_ = buf.setString(inner.left() + 2, y, "(none)", Style.default);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn formatEvent(event: Event) []const u8 {
|
||||||
|
return switch (event) {
|
||||||
|
.key => |key| switch (key.code) {
|
||||||
|
.char => "Key: char",
|
||||||
|
.enter => "Key: Enter",
|
||||||
|
.esc => "Key: Escape",
|
||||||
|
.tab => "Key: Tab",
|
||||||
|
.backspace => "Key: Backspace",
|
||||||
|
.up => "Key: Up",
|
||||||
|
.down => "Key: Down",
|
||||||
|
.left => "Key: Left",
|
||||||
|
.right => "Key: Right",
|
||||||
|
.home => "Key: Home",
|
||||||
|
.end => "Key: End",
|
||||||
|
.page_up => "Key: PageUp",
|
||||||
|
.page_down => "Key: PageDown",
|
||||||
|
.delete => "Key: Delete",
|
||||||
|
.insert => "Key: Insert",
|
||||||
|
.f => "Key: F-key",
|
||||||
|
else => "Key: other",
|
||||||
|
},
|
||||||
|
.mouse => |mouse| switch (mouse.kind) {
|
||||||
|
.down => "Mouse: click",
|
||||||
|
.up => "Mouse: release",
|
||||||
|
.drag => "Mouse: drag",
|
||||||
|
.moved => "Mouse: move",
|
||||||
|
.scroll_up => "Mouse: scroll up",
|
||||||
|
.scroll_down => "Mouse: scroll down",
|
||||||
|
else => "Mouse: other",
|
||||||
|
},
|
||||||
|
.resize => "Resize",
|
||||||
|
.focus_gained => "Focus gained",
|
||||||
|
.focus_lost => "Focus lost",
|
||||||
|
.paste => "Paste",
|
||||||
|
};
|
||||||
|
}
|
||||||
268
src/cursor.zig
Normal file
268
src/cursor.zig
Normal file
|
|
@ -0,0 +1,268 @@
|
||||||
|
//! Cursor control for zcatui.
|
||||||
|
//!
|
||||||
|
//! Provides cursor visibility, positioning, shape, and blinking control.
|
||||||
|
//! Inspired by crossterm's cursor module.
|
||||||
|
//!
|
||||||
|
//! ## Example
|
||||||
|
//!
|
||||||
|
//! ```zig
|
||||||
|
//! // Hide cursor during rendering
|
||||||
|
//! try cursor.hide();
|
||||||
|
//! defer cursor.show() catch {};
|
||||||
|
//!
|
||||||
|
//! // Save and restore position
|
||||||
|
//! try cursor.savePosition();
|
||||||
|
//! try cursor.moveTo(10, 5);
|
||||||
|
//! // ... do something
|
||||||
|
//! try cursor.restorePosition();
|
||||||
|
//!
|
||||||
|
//! // Change cursor style
|
||||||
|
//! try cursor.setStyle(.blinking_bar);
|
||||||
|
//! ```
|
||||||
|
|
||||||
|
const std = @import("std");
|
||||||
|
|
||||||
|
/// Cursor style/shape.
|
||||||
|
pub const CursorStyle = enum {
|
||||||
|
/// Default cursor style (determined by terminal).
|
||||||
|
default,
|
||||||
|
/// Blinking block cursor (▐).
|
||||||
|
blinking_block,
|
||||||
|
/// Steady (non-blinking) block cursor.
|
||||||
|
steady_block,
|
||||||
|
/// Blinking underline cursor.
|
||||||
|
blinking_underline,
|
||||||
|
/// Steady underline cursor.
|
||||||
|
steady_underline,
|
||||||
|
/// Blinking bar/line cursor (|).
|
||||||
|
blinking_bar,
|
||||||
|
/// Steady bar cursor.
|
||||||
|
steady_bar,
|
||||||
|
|
||||||
|
/// Returns the DECSCUSR parameter for this style.
|
||||||
|
pub fn toDecscusr(self: CursorStyle) u8 {
|
||||||
|
return switch (self) {
|
||||||
|
.default => 0,
|
||||||
|
.blinking_block => 1,
|
||||||
|
.steady_block => 2,
|
||||||
|
.blinking_underline => 3,
|
||||||
|
.steady_underline => 4,
|
||||||
|
.blinking_bar => 5,
|
||||||
|
.steady_bar => 6,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Cursor controller.
|
||||||
|
///
|
||||||
|
/// Provides methods to control cursor appearance and position.
|
||||||
|
pub const Cursor = struct {
|
||||||
|
file: std.fs.File,
|
||||||
|
|
||||||
|
/// Creates a new cursor controller for stdout.
|
||||||
|
pub fn init() Cursor {
|
||||||
|
return .{
|
||||||
|
.file = std.fs.File.stdout(),
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Creates a cursor controller from a file.
|
||||||
|
pub fn fromFile(file: std.fs.File) Cursor {
|
||||||
|
return .{ .file = file };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Writes bytes to the output.
|
||||||
|
fn write(self: *Cursor, data: []const u8) !void {
|
||||||
|
_ = try self.file.write(data);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Visibility
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Hides the cursor.
|
||||||
|
pub fn hide(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b[?25l");
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Shows the cursor.
|
||||||
|
pub fn show(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b[?25h");
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Blinking
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Enables cursor blinking.
|
||||||
|
pub fn enableBlinking(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b[?12h");
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Disables cursor blinking.
|
||||||
|
pub fn disableBlinking(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b[?12l");
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Style/Shape
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Sets the cursor style.
|
||||||
|
///
|
||||||
|
/// Uses DECSCUSR (DEC Set Cursor Style) escape sequence.
|
||||||
|
/// Supported by most modern terminals (xterm, VTE, iTerm2, etc.)
|
||||||
|
pub fn setStyle(self: *Cursor, cursor_style: CursorStyle) !void {
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d} q", .{cursor_style.toDecscusr()}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Positioning
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Moves the cursor to (column, row).
|
||||||
|
///
|
||||||
|
/// Both are 0-indexed. Top-left is (0, 0).
|
||||||
|
pub fn moveTo(self: *Cursor, column: u16, row: u16) !void {
|
||||||
|
var buf: [32]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d};{d}H", .{ row + 1, column + 1 }) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor to a specific column (0-indexed).
|
||||||
|
pub fn moveToColumn(self: *Cursor, column: u16) !void {
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}G", .{column + 1}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor to a specific row (0-indexed).
|
||||||
|
pub fn moveToRow(self: *Cursor, row: u16) !void {
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}d", .{row + 1}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor up by n rows.
|
||||||
|
pub fn moveUp(self: *Cursor, n: u16) !void {
|
||||||
|
if (n == 0) return;
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}A", .{n}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor down by n rows.
|
||||||
|
pub fn moveDown(self: *Cursor, n: u16) !void {
|
||||||
|
if (n == 0) return;
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}B", .{n}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor right by n columns.
|
||||||
|
pub fn moveRight(self: *Cursor, n: u16) !void {
|
||||||
|
if (n == 0) return;
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}C", .{n}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor left by n columns.
|
||||||
|
pub fn moveLeft(self: *Cursor, n: u16) !void {
|
||||||
|
if (n == 0) return;
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}D", .{n}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor to the beginning of the next line, n lines down.
|
||||||
|
pub fn moveToNextLine(self: *Cursor, n: u16) !void {
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}E", .{if (n == 0) @as(u16, 1) else n}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Moves the cursor to the beginning of the previous line, n lines up.
|
||||||
|
pub fn moveToPreviousLine(self: *Cursor, n: u16) !void {
|
||||||
|
var buf: [16]u8 = undefined;
|
||||||
|
const seq = std.fmt.bufPrint(&buf, "\x1b[{d}F", .{if (n == 0) @as(u16, 1) else n}) catch return;
|
||||||
|
try self.write(seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Save/Restore
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Saves the current cursor position.
|
||||||
|
///
|
||||||
|
/// Use restorePosition() to return to this position.
|
||||||
|
pub fn savePosition(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b7"); // DECSC
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Restores the previously saved cursor position.
|
||||||
|
pub fn restorePosition(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b8"); // DECRC
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Alternative sequences (for compatibility)
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Saves position using ANSI.SYS sequence (alternative).
|
||||||
|
pub fn savePositionAnsi(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b[s");
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Restores position using ANSI.SYS sequence (alternative).
|
||||||
|
pub fn restorePositionAnsi(self: *Cursor) !void {
|
||||||
|
try self.write("\x1b[u");
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Escape sequence constants (for direct use)
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Hide cursor sequence.
|
||||||
|
pub const HIDE: []const u8 = "\x1b[?25l";
|
||||||
|
|
||||||
|
/// Show cursor sequence.
|
||||||
|
pub const SHOW: []const u8 = "\x1b[?25h";
|
||||||
|
|
||||||
|
/// Save cursor position sequence (DEC).
|
||||||
|
pub const SAVE_POSITION: []const u8 = "\x1b7";
|
||||||
|
|
||||||
|
/// Restore cursor position sequence (DEC).
|
||||||
|
pub const RESTORE_POSITION: []const u8 = "\x1b8";
|
||||||
|
|
||||||
|
/// Enable blinking sequence.
|
||||||
|
pub const ENABLE_BLINKING: []const u8 = "\x1b[?12h";
|
||||||
|
|
||||||
|
/// Disable blinking sequence.
|
||||||
|
pub const DISABLE_BLINKING: []const u8 = "\x1b[?12l";
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Tests
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
test "CursorStyle toDecscusr" {
|
||||||
|
try std.testing.expectEqual(@as(u8, 0), CursorStyle.default.toDecscusr());
|
||||||
|
try std.testing.expectEqual(@as(u8, 1), CursorStyle.blinking_block.toDecscusr());
|
||||||
|
try std.testing.expectEqual(@as(u8, 2), CursorStyle.steady_block.toDecscusr());
|
||||||
|
try std.testing.expectEqual(@as(u8, 5), CursorStyle.blinking_bar.toDecscusr());
|
||||||
|
try std.testing.expectEqual(@as(u8, 6), CursorStyle.steady_bar.toDecscusr());
|
||||||
|
}
|
||||||
|
|
||||||
|
test "Cursor creation" {
|
||||||
|
_ = Cursor.init();
|
||||||
|
}
|
||||||
|
|
||||||
|
test "escape sequence constants" {
|
||||||
|
try std.testing.expectEqualStrings("\x1b[?25l", HIDE);
|
||||||
|
try std.testing.expectEqualStrings("\x1b[?25h", SHOW);
|
||||||
|
try std.testing.expectEqualStrings("\x1b7", SAVE_POSITION);
|
||||||
|
try std.testing.expectEqualStrings("\x1b8", RESTORE_POSITION);
|
||||||
|
}
|
||||||
393
src/event.zig
Normal file
393
src/event.zig
Normal file
|
|
@ -0,0 +1,393 @@
|
||||||
|
//! Event types for zcatui.
|
||||||
|
//!
|
||||||
|
//! Provides keyboard, mouse, and terminal events for interactive TUI applications.
|
||||||
|
//! Inspired by crossterm's event system.
|
||||||
|
//!
|
||||||
|
//! ## Example
|
||||||
|
//!
|
||||||
|
//! ```zig
|
||||||
|
//! if (try term.pollEvent(100)) |event| {
|
||||||
|
//! switch (event) {
|
||||||
|
//! .key => |key| {
|
||||||
|
//! if (key.code == .char and key.char == 'q') break;
|
||||||
|
//! },
|
||||||
|
//! .mouse => |mouse| {
|
||||||
|
//! if (mouse.kind == .down) handleClick(mouse.column, mouse.row);
|
||||||
|
//! },
|
||||||
|
//! .resize => |size| try term.resize(size.width, size.height),
|
||||||
|
//! else => {},
|
||||||
|
//! }
|
||||||
|
//! }
|
||||||
|
//! ```
|
||||||
|
|
||||||
|
const std = @import("std");
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Main Event Type
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Represents a terminal event.
|
||||||
|
///
|
||||||
|
/// Events can be keyboard input, mouse interaction, terminal resize,
|
||||||
|
/// focus changes, or bracketed paste.
|
||||||
|
pub const Event = union(enum) {
|
||||||
|
/// A keyboard event.
|
||||||
|
key: KeyEvent,
|
||||||
|
/// A mouse event.
|
||||||
|
mouse: MouseEvent,
|
||||||
|
/// Terminal resize event.
|
||||||
|
resize: ResizeEvent,
|
||||||
|
/// Terminal gained focus.
|
||||||
|
focus_gained,
|
||||||
|
/// Terminal lost focus.
|
||||||
|
focus_lost,
|
||||||
|
/// Bracketed paste content.
|
||||||
|
/// Note: The slice is only valid until the next event is read.
|
||||||
|
paste: []const u8,
|
||||||
|
};
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Keyboard Events
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Represents a keyboard event.
|
||||||
|
pub const KeyEvent = struct {
|
||||||
|
/// The key that was pressed.
|
||||||
|
code: KeyCode,
|
||||||
|
/// Modifier keys held during the event.
|
||||||
|
modifiers: KeyModifiers = .{},
|
||||||
|
/// The kind of key event.
|
||||||
|
kind: KeyEventKind = .press,
|
||||||
|
|
||||||
|
/// Creates a KeyEvent from a character.
|
||||||
|
pub fn char(c: u21) KeyEvent {
|
||||||
|
return .{ .code = .{ .char = c } };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Creates a KeyEvent with modifiers.
|
||||||
|
pub fn withMod(code: KeyCode, mods: KeyModifiers) KeyEvent {
|
||||||
|
return .{ .code = code, .modifiers = mods };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Returns the character if this is a char event.
|
||||||
|
pub fn getChar(self: KeyEvent) ?u21 {
|
||||||
|
return switch (self.code) {
|
||||||
|
.char => |c| c,
|
||||||
|
else => null,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if Ctrl modifier is active.
|
||||||
|
pub fn isCtrl(self: KeyEvent) bool {
|
||||||
|
return self.modifiers.ctrl;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if Alt modifier is active.
|
||||||
|
pub fn isAlt(self: KeyEvent) bool {
|
||||||
|
return self.modifiers.alt;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if Shift modifier is active.
|
||||||
|
pub fn isShift(self: KeyEvent) bool {
|
||||||
|
return self.modifiers.shift;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Represents a key code.
|
||||||
|
pub const KeyCode = union(enum) {
|
||||||
|
// Character keys
|
||||||
|
/// A unicode character.
|
||||||
|
char: u21,
|
||||||
|
|
||||||
|
// Function keys
|
||||||
|
/// F1-F12 (and beyond).
|
||||||
|
f: u8,
|
||||||
|
|
||||||
|
// Navigation keys
|
||||||
|
backspace,
|
||||||
|
enter,
|
||||||
|
tab,
|
||||||
|
backtab, // Shift+Tab
|
||||||
|
|
||||||
|
// Arrow keys
|
||||||
|
left,
|
||||||
|
right,
|
||||||
|
up,
|
||||||
|
down,
|
||||||
|
|
||||||
|
// Navigation
|
||||||
|
home,
|
||||||
|
end,
|
||||||
|
page_up,
|
||||||
|
page_down,
|
||||||
|
insert,
|
||||||
|
delete,
|
||||||
|
|
||||||
|
// Special keys
|
||||||
|
esc,
|
||||||
|
null_key,
|
||||||
|
|
||||||
|
// Lock keys (require enhanced keyboard protocol)
|
||||||
|
caps_lock,
|
||||||
|
scroll_lock,
|
||||||
|
num_lock,
|
||||||
|
|
||||||
|
// System keys (require enhanced keyboard protocol)
|
||||||
|
print_screen,
|
||||||
|
pause,
|
||||||
|
menu,
|
||||||
|
|
||||||
|
// Media keys
|
||||||
|
media: MediaKeyCode,
|
||||||
|
|
||||||
|
// Modifier keys (when pressed alone, require enhanced protocol)
|
||||||
|
modifier: ModifierKeyCode,
|
||||||
|
|
||||||
|
/// Checks if this key matches a character.
|
||||||
|
pub fn isChar(self: KeyCode, c: u21) bool {
|
||||||
|
return switch (self) {
|
||||||
|
.char => |ch| ch == c,
|
||||||
|
else => false,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Media key codes.
|
||||||
|
pub const MediaKeyCode = enum {
|
||||||
|
play,
|
||||||
|
pause,
|
||||||
|
play_pause,
|
||||||
|
stop,
|
||||||
|
reverse,
|
||||||
|
fast_forward,
|
||||||
|
rewind,
|
||||||
|
next,
|
||||||
|
previous,
|
||||||
|
record,
|
||||||
|
lower_volume,
|
||||||
|
raise_volume,
|
||||||
|
mute_volume,
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Modifier key codes (when pressed alone).
|
||||||
|
pub const ModifierKeyCode = enum {
|
||||||
|
left_shift,
|
||||||
|
right_shift,
|
||||||
|
left_ctrl,
|
||||||
|
right_ctrl,
|
||||||
|
left_alt,
|
||||||
|
right_alt,
|
||||||
|
left_super,
|
||||||
|
right_super,
|
||||||
|
left_hyper,
|
||||||
|
right_hyper,
|
||||||
|
left_meta,
|
||||||
|
right_meta,
|
||||||
|
iso_level_3_shift,
|
||||||
|
iso_level_5_shift,
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Key modifiers (Ctrl, Alt, Shift, Super).
|
||||||
|
pub const KeyModifiers = packed struct {
|
||||||
|
shift: bool = false,
|
||||||
|
ctrl: bool = false,
|
||||||
|
alt: bool = false,
|
||||||
|
super: bool = false,
|
||||||
|
hyper: bool = false,
|
||||||
|
meta: bool = false,
|
||||||
|
_padding: u2 = 0,
|
||||||
|
|
||||||
|
pub const none: KeyModifiers = .{};
|
||||||
|
pub const SHIFT: KeyModifiers = .{ .shift = true };
|
||||||
|
pub const CTRL: KeyModifiers = .{ .ctrl = true };
|
||||||
|
pub const ALT: KeyModifiers = .{ .alt = true };
|
||||||
|
pub const SUPER: KeyModifiers = .{ .super = true };
|
||||||
|
|
||||||
|
/// Combines two modifier sets.
|
||||||
|
pub fn combine(self: KeyModifiers, other: KeyModifiers) KeyModifiers {
|
||||||
|
return .{
|
||||||
|
.shift = self.shift or other.shift,
|
||||||
|
.ctrl = self.ctrl or other.ctrl,
|
||||||
|
.alt = self.alt or other.alt,
|
||||||
|
.super = self.super or other.super,
|
||||||
|
.hyper = self.hyper or other.hyper,
|
||||||
|
.meta = self.meta or other.meta,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if any modifier is active.
|
||||||
|
pub fn any(self: KeyModifiers) bool {
|
||||||
|
return self.shift or self.ctrl or self.alt or self.super or self.hyper or self.meta;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if no modifiers are active.
|
||||||
|
pub fn isEmpty(self: KeyModifiers) bool {
|
||||||
|
return !self.any();
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// The kind of key event.
|
||||||
|
pub const KeyEventKind = enum {
|
||||||
|
/// Key was pressed.
|
||||||
|
press,
|
||||||
|
/// Key was released (requires enhanced keyboard protocol).
|
||||||
|
release,
|
||||||
|
/// Key is being held/repeated.
|
||||||
|
repeat,
|
||||||
|
};
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Mouse Events
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Represents a mouse event.
|
||||||
|
pub const MouseEvent = struct {
|
||||||
|
/// The kind of mouse event.
|
||||||
|
kind: MouseEventKind,
|
||||||
|
/// The mouse button involved (if applicable).
|
||||||
|
button: MouseButton = .none,
|
||||||
|
/// Column (x) position of the mouse (0-indexed).
|
||||||
|
column: u16,
|
||||||
|
/// Row (y) position of the mouse (0-indexed).
|
||||||
|
row: u16,
|
||||||
|
/// Modifier keys held during the event.
|
||||||
|
modifiers: KeyModifiers = .{},
|
||||||
|
|
||||||
|
/// Creates a mouse down event.
|
||||||
|
pub fn down(button: MouseButton, col: u16, r: u16) MouseEvent {
|
||||||
|
return .{ .kind = .down, .button = button, .column = col, .row = r };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Creates a mouse up event.
|
||||||
|
pub fn up(button: MouseButton, col: u16, r: u16) MouseEvent {
|
||||||
|
return .{ .kind = .up, .button = button, .column = col, .row = r };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Creates a mouse move event.
|
||||||
|
pub fn moved(col: u16, r: u16) MouseEvent {
|
||||||
|
return .{ .kind = .moved, .button = .none, .column = col, .row = r };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if this is a click event (button down).
|
||||||
|
pub fn isClick(self: MouseEvent) bool {
|
||||||
|
return self.kind == .down;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if the left button was used.
|
||||||
|
pub fn isLeft(self: MouseEvent) bool {
|
||||||
|
return self.button == .left;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if the right button was used.
|
||||||
|
pub fn isRight(self: MouseEvent) bool {
|
||||||
|
return self.button == .right;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// The kind of mouse event.
|
||||||
|
pub const MouseEventKind = enum {
|
||||||
|
/// Mouse button pressed down.
|
||||||
|
down,
|
||||||
|
/// Mouse button released.
|
||||||
|
up,
|
||||||
|
/// Mouse dragged (button held while moving).
|
||||||
|
drag,
|
||||||
|
/// Mouse moved (no button pressed).
|
||||||
|
moved,
|
||||||
|
/// Scroll wheel down.
|
||||||
|
scroll_down,
|
||||||
|
/// Scroll wheel up.
|
||||||
|
scroll_up,
|
||||||
|
/// Scroll wheel left (horizontal scroll).
|
||||||
|
scroll_left,
|
||||||
|
/// Scroll wheel right (horizontal scroll).
|
||||||
|
scroll_right,
|
||||||
|
|
||||||
|
/// Checks if this is a scroll event.
|
||||||
|
pub fn isScroll(self: MouseEventKind) bool {
|
||||||
|
return self == .scroll_down or self == .scroll_up or
|
||||||
|
self == .scroll_left or self == .scroll_right;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if this is a button event (down/up).
|
||||||
|
pub fn isButton(self: MouseEventKind) bool {
|
||||||
|
return self == .down or self == .up;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Mouse buttons.
|
||||||
|
pub const MouseButton = enum {
|
||||||
|
/// Left mouse button.
|
||||||
|
left,
|
||||||
|
/// Right mouse button.
|
||||||
|
right,
|
||||||
|
/// Middle mouse button (wheel click).
|
||||||
|
middle,
|
||||||
|
/// No button (for move/scroll events).
|
||||||
|
none,
|
||||||
|
};
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Terminal Events
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Terminal resize event.
|
||||||
|
pub const ResizeEvent = struct {
|
||||||
|
/// New terminal width in columns.
|
||||||
|
width: u16,
|
||||||
|
/// New terminal height in rows.
|
||||||
|
height: u16,
|
||||||
|
};
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Tests
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
test "KeyEvent creation" {
|
||||||
|
const key = KeyEvent.char('a');
|
||||||
|
try std.testing.expectEqual(@as(u21, 'a'), key.getChar().?);
|
||||||
|
try std.testing.expect(!key.isCtrl());
|
||||||
|
}
|
||||||
|
|
||||||
|
test "KeyEvent with modifiers" {
|
||||||
|
const key = KeyEvent.withMod(.{ .char = 'c' }, .{ .ctrl = true });
|
||||||
|
try std.testing.expect(key.isCtrl());
|
||||||
|
try std.testing.expectEqual(@as(u21, 'c'), key.getChar().?);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "KeyModifiers combine" {
|
||||||
|
const ctrl = KeyModifiers.CTRL;
|
||||||
|
const shift = KeyModifiers.SHIFT;
|
||||||
|
const combined = ctrl.combine(shift);
|
||||||
|
try std.testing.expect(combined.ctrl);
|
||||||
|
try std.testing.expect(combined.shift);
|
||||||
|
try std.testing.expect(!combined.alt);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "KeyCode isChar" {
|
||||||
|
const code: KeyCode = .{ .char = 'q' };
|
||||||
|
try std.testing.expect(code.isChar('q'));
|
||||||
|
try std.testing.expect(!code.isChar('x'));
|
||||||
|
}
|
||||||
|
|
||||||
|
test "MouseEvent creation" {
|
||||||
|
const click = MouseEvent.down(.left, 10, 5);
|
||||||
|
try std.testing.expect(click.isClick());
|
||||||
|
try std.testing.expect(click.isLeft());
|
||||||
|
try std.testing.expectEqual(@as(u16, 10), click.column);
|
||||||
|
try std.testing.expectEqual(@as(u16, 5), click.row);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "MouseEventKind isScroll" {
|
||||||
|
try std.testing.expect(MouseEventKind.scroll_down.isScroll());
|
||||||
|
try std.testing.expect(MouseEventKind.scroll_up.isScroll());
|
||||||
|
try std.testing.expect(!MouseEventKind.down.isScroll());
|
||||||
|
}
|
||||||
|
|
||||||
|
test "Event union" {
|
||||||
|
const event: Event = .{ .key = KeyEvent.char('x') };
|
||||||
|
switch (event) {
|
||||||
|
.key => |k| try std.testing.expectEqual(@as(u21, 'x'), k.getChar().?),
|
||||||
|
else => unreachable,
|
||||||
|
}
|
||||||
|
}
|
||||||
616
src/event/parse.zig
Normal file
616
src/event/parse.zig
Normal file
|
|
@ -0,0 +1,616 @@
|
||||||
|
//! Escape sequence parser for zcatui.
|
||||||
|
//!
|
||||||
|
//! Parses ANSI escape sequences into structured events.
|
||||||
|
//! Supports:
|
||||||
|
//! - Single key presses (a-z, 0-9, etc.)
|
||||||
|
//! - Control sequences (Ctrl+A, etc.)
|
||||||
|
//! - Function keys (F1-F12)
|
||||||
|
//! - Arrow keys and navigation
|
||||||
|
//! - Mouse events (SGR and X10 protocols)
|
||||||
|
//! - Bracketed paste
|
||||||
|
//! - Focus events
|
||||||
|
|
||||||
|
const std = @import("std");
|
||||||
|
const event = @import("../event.zig");
|
||||||
|
const Event = event.Event;
|
||||||
|
const KeyEvent = event.KeyEvent;
|
||||||
|
const KeyCode = event.KeyCode;
|
||||||
|
const KeyModifiers = event.KeyModifiers;
|
||||||
|
const KeyEventKind = event.KeyEventKind;
|
||||||
|
const MouseEvent = event.MouseEvent;
|
||||||
|
const MouseEventKind = event.MouseEventKind;
|
||||||
|
const MouseButton = event.MouseButton;
|
||||||
|
const ResizeEvent = event.ResizeEvent;
|
||||||
|
|
||||||
|
/// Result of parsing input.
|
||||||
|
pub const ParseResult = struct {
|
||||||
|
event: ?Event,
|
||||||
|
consumed: usize,
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Parses terminal input into an event.
|
||||||
|
///
|
||||||
|
/// Returns the parsed event (if valid) and number of bytes consumed.
|
||||||
|
pub fn parseEvent(data: []const u8) ParseResult {
|
||||||
|
if (data.len == 0) {
|
||||||
|
return .{ .event = null, .consumed = 0 };
|
||||||
|
}
|
||||||
|
|
||||||
|
const first = data[0];
|
||||||
|
|
||||||
|
// Escape sequence
|
||||||
|
if (first == 0x1B) {
|
||||||
|
return parseEscapeSequence(data);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Control characters (Ctrl+A through Ctrl+Z)
|
||||||
|
if (first < 32) {
|
||||||
|
return parseControlChar(first);
|
||||||
|
}
|
||||||
|
|
||||||
|
// DEL (Ctrl+?)
|
||||||
|
if (first == 127) {
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = .backspace } },
|
||||||
|
.consumed = 1,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Regular UTF-8 character
|
||||||
|
return parseUtf8Char(data);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses a control character (0x00-0x1F).
|
||||||
|
fn parseControlChar(c: u8) ParseResult {
|
||||||
|
const ev: KeyEvent = switch (c) {
|
||||||
|
0 => .{ .code = .{ .char = ' ' }, .modifiers = .{ .ctrl = true } }, // Ctrl+Space
|
||||||
|
9 => .{ .code = .tab }, // Tab (Ctrl+I)
|
||||||
|
10, 13 => .{ .code = .enter }, // Enter (Ctrl+J, Ctrl+M)
|
||||||
|
27 => .{ .code = .esc }, // Escape
|
||||||
|
1...8, 11, 12, 14...26 => .{ .code = .{ .char = 'a' + c - 1 }, .modifiers = .{ .ctrl = true } }, // Ctrl+A-Z (excluding Tab, Enter, Esc)
|
||||||
|
else => .{ .code = .null_key },
|
||||||
|
};
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = ev },
|
||||||
|
.consumed = 1,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses an escape sequence.
|
||||||
|
fn parseEscapeSequence(data: []const u8) ParseResult {
|
||||||
|
if (data.len < 2) {
|
||||||
|
// Just ESC key
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = .esc } },
|
||||||
|
.consumed = 1,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
const second = data[1];
|
||||||
|
|
||||||
|
// ESC [ - CSI sequence
|
||||||
|
if (second == '[') {
|
||||||
|
return parseCsiSequence(data);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ESC O - SS3 sequence (some terminals use for function keys)
|
||||||
|
if (second == 'O') {
|
||||||
|
return parseSs3Sequence(data);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ESC followed by a character = Alt+key
|
||||||
|
if (second >= 32 and second < 127) {
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{
|
||||||
|
.code = .{ .char = second },
|
||||||
|
.modifiers = .{ .alt = true },
|
||||||
|
} },
|
||||||
|
.consumed = 2,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Unknown escape sequence, return just ESC
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = .esc } },
|
||||||
|
.consumed = 1,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses a CSI (Control Sequence Introducer) sequence.
|
||||||
|
/// Format: ESC [ <params> <intermediate> <final>
|
||||||
|
fn parseCsiSequence(data: []const u8) ParseResult {
|
||||||
|
if (data.len < 3) {
|
||||||
|
return .{ .event = null, .consumed = 0 };
|
||||||
|
}
|
||||||
|
|
||||||
|
// Find the end of the sequence (final byte: 0x40-0x7E)
|
||||||
|
var end: usize = 2;
|
||||||
|
while (end < data.len) : (end += 1) {
|
||||||
|
const c = data[end];
|
||||||
|
if (c >= 0x40 and c <= 0x7E) {
|
||||||
|
end += 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (end > data.len) {
|
||||||
|
return .{ .event = null, .consumed = 0 };
|
||||||
|
}
|
||||||
|
|
||||||
|
const seq = data[2..end];
|
||||||
|
if (seq.len == 0) {
|
||||||
|
return .{ .event = null, .consumed = end };
|
||||||
|
}
|
||||||
|
|
||||||
|
const final = seq[seq.len - 1];
|
||||||
|
const params_slice = if (seq.len > 1) seq[0 .. seq.len - 1] else "";
|
||||||
|
|
||||||
|
// Parse based on final byte
|
||||||
|
switch (final) {
|
||||||
|
// Arrow keys and navigation
|
||||||
|
'A' => return keyResult(.up, params_slice, end),
|
||||||
|
'B' => return keyResult(.down, params_slice, end),
|
||||||
|
'C' => return keyResult(.right, params_slice, end),
|
||||||
|
'D' => return keyResult(.left, params_slice, end),
|
||||||
|
'H' => return keyResult(.home, params_slice, end),
|
||||||
|
'F' => return keyResult(.end, params_slice, end),
|
||||||
|
|
||||||
|
// Delete, Insert, Page Up/Down, Home, End (with ~)
|
||||||
|
'~' => return parseTildeSequence(params_slice, end),
|
||||||
|
|
||||||
|
// Focus events
|
||||||
|
'I' => return .{ .event = .focus_gained, .consumed = end },
|
||||||
|
'O' => return .{ .event = .focus_lost, .consumed = end },
|
||||||
|
|
||||||
|
// SGR mouse (ESC [ < ... M/m)
|
||||||
|
'M', 'm' => {
|
||||||
|
// Check if this is SGR mouse (starts with <)
|
||||||
|
if (params_slice.len > 0 and params_slice[0] == '<') {
|
||||||
|
return parseSgrMouse(params_slice[1..], final == 'm', end);
|
||||||
|
}
|
||||||
|
// Legacy X10 mouse - handled differently
|
||||||
|
return parseX10Mouse(data, end);
|
||||||
|
},
|
||||||
|
|
||||||
|
// Bracketed paste
|
||||||
|
'u' => {
|
||||||
|
// Kitty keyboard protocol or other
|
||||||
|
return .{ .event = null, .consumed = end };
|
||||||
|
},
|
||||||
|
|
||||||
|
else => return .{ .event = null, .consumed = end },
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses tilde sequences (F-keys, Insert, Delete, etc.).
|
||||||
|
fn parseTildeSequence(params: []const u8, consumed: usize) ParseResult {
|
||||||
|
const params_parsed = parseNumericParams(params);
|
||||||
|
const key_num = params_parsed.first;
|
||||||
|
const modifier = modifiersFromParam(params_parsed.second);
|
||||||
|
|
||||||
|
const code: KeyCode = switch (key_num) {
|
||||||
|
1 => .home,
|
||||||
|
2 => .insert,
|
||||||
|
3 => .delete,
|
||||||
|
4 => .end,
|
||||||
|
5 => .page_up,
|
||||||
|
6 => .page_down,
|
||||||
|
7 => .home,
|
||||||
|
8 => .end,
|
||||||
|
// Function keys
|
||||||
|
11 => .{ .f = 1 },
|
||||||
|
12 => .{ .f = 2 },
|
||||||
|
13 => .{ .f = 3 },
|
||||||
|
14 => .{ .f = 4 },
|
||||||
|
15 => .{ .f = 5 },
|
||||||
|
17 => .{ .f = 6 },
|
||||||
|
18 => .{ .f = 7 },
|
||||||
|
19 => .{ .f = 8 },
|
||||||
|
20 => .{ .f = 9 },
|
||||||
|
21 => .{ .f = 10 },
|
||||||
|
23 => .{ .f = 11 },
|
||||||
|
24 => .{ .f = 12 },
|
||||||
|
else => .null_key,
|
||||||
|
};
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = code, .modifiers = modifier } },
|
||||||
|
.consumed = consumed,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses SS3 sequences (ESC O ...).
|
||||||
|
fn parseSs3Sequence(data: []const u8) ParseResult {
|
||||||
|
if (data.len < 3) {
|
||||||
|
return .{ .event = null, .consumed = 0 };
|
||||||
|
}
|
||||||
|
|
||||||
|
const final = data[2];
|
||||||
|
const code: KeyCode = switch (final) {
|
||||||
|
'A' => .up,
|
||||||
|
'B' => .down,
|
||||||
|
'C' => .right,
|
||||||
|
'D' => .left,
|
||||||
|
'H' => .home,
|
||||||
|
'F' => .end,
|
||||||
|
'P' => .{ .f = 1 },
|
||||||
|
'Q' => .{ .f = 2 },
|
||||||
|
'R' => .{ .f = 3 },
|
||||||
|
'S' => .{ .f = 4 },
|
||||||
|
else => .null_key,
|
||||||
|
};
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = code } },
|
||||||
|
.consumed = 3,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses SGR mouse protocol (ESC [ < Cb;Cx;Cy M/m).
|
||||||
|
fn parseSgrMouse(params: []const u8, is_release: bool, consumed: usize) ParseResult {
|
||||||
|
var nums: [3]u16 = .{ 0, 0, 0 };
|
||||||
|
var num_idx: usize = 0;
|
||||||
|
var current: u16 = 0;
|
||||||
|
|
||||||
|
for (params) |c| {
|
||||||
|
if (c >= '0' and c <= '9') {
|
||||||
|
current = current * 10 + (c - '0');
|
||||||
|
} else if (c == ';') {
|
||||||
|
if (num_idx < 3) {
|
||||||
|
nums[num_idx] = current;
|
||||||
|
num_idx += 1;
|
||||||
|
}
|
||||||
|
current = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (num_idx < 3) {
|
||||||
|
nums[num_idx] = current;
|
||||||
|
}
|
||||||
|
|
||||||
|
const cb = nums[0];
|
||||||
|
const cx = if (nums[1] > 0) nums[1] - 1 else 0; // 1-indexed to 0-indexed
|
||||||
|
const cy = if (nums[2] > 0) nums[2] - 1 else 0;
|
||||||
|
|
||||||
|
// Decode button and modifiers from cb
|
||||||
|
const button_bits = cb & 0b11;
|
||||||
|
const motion = (cb & 0b100000) != 0;
|
||||||
|
const shift = (cb & 0b100) != 0;
|
||||||
|
const alt = (cb & 0b1000) != 0;
|
||||||
|
const ctrl = (cb & 0b10000) != 0;
|
||||||
|
|
||||||
|
const mods = KeyModifiers{
|
||||||
|
.shift = shift,
|
||||||
|
.alt = alt,
|
||||||
|
.ctrl = ctrl,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Determine event kind and button
|
||||||
|
var kind: MouseEventKind = undefined;
|
||||||
|
var button: MouseButton = undefined;
|
||||||
|
|
||||||
|
// Check for scroll events (button_bits == 0b11 with specific high bits)
|
||||||
|
if ((cb & 0b1000000) != 0) {
|
||||||
|
// Scroll events
|
||||||
|
if (button_bits == 0) {
|
||||||
|
kind = .scroll_up;
|
||||||
|
} else if (button_bits == 1) {
|
||||||
|
kind = .scroll_down;
|
||||||
|
} else if (button_bits == 2) {
|
||||||
|
kind = .scroll_left;
|
||||||
|
} else {
|
||||||
|
kind = .scroll_right;
|
||||||
|
}
|
||||||
|
button = .none;
|
||||||
|
} else if (button_bits == 3) {
|
||||||
|
// Release (in X10 mode) or motion only
|
||||||
|
kind = if (motion) .moved else .up;
|
||||||
|
button = .none;
|
||||||
|
} else {
|
||||||
|
// Button event
|
||||||
|
button = switch (button_bits) {
|
||||||
|
0 => .left,
|
||||||
|
1 => .middle,
|
||||||
|
2 => .right,
|
||||||
|
else => .none,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (is_release) {
|
||||||
|
kind = .up;
|
||||||
|
} else if (motion) {
|
||||||
|
kind = .drag;
|
||||||
|
} else {
|
||||||
|
kind = .down;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{
|
||||||
|
.mouse = .{
|
||||||
|
.kind = kind,
|
||||||
|
.button = button,
|
||||||
|
.column = cx,
|
||||||
|
.row = cy,
|
||||||
|
.modifiers = mods,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
.consumed = consumed,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses X10 mouse protocol (ESC [ M Cb Cx Cy).
|
||||||
|
fn parseX10Mouse(data: []const u8, start_consumed: usize) ParseResult {
|
||||||
|
_ = start_consumed;
|
||||||
|
|
||||||
|
// X10 format: ESC [ M Cb Cx Cy (6 bytes total)
|
||||||
|
if (data.len < 6) {
|
||||||
|
return .{ .event = null, .consumed = 0 };
|
||||||
|
}
|
||||||
|
|
||||||
|
const cb = data[3] -| 32;
|
||||||
|
const cx = data[4] -| 33; // 1-indexed, 32 offset
|
||||||
|
const cy = data[5] -| 33;
|
||||||
|
|
||||||
|
const button_bits = cb & 0b11;
|
||||||
|
const motion = (cb & 0b100000) != 0;
|
||||||
|
const shift = (cb & 0b100) != 0;
|
||||||
|
const alt = (cb & 0b1000) != 0;
|
||||||
|
const ctrl = (cb & 0b10000) != 0;
|
||||||
|
|
||||||
|
const mods = KeyModifiers{
|
||||||
|
.shift = shift,
|
||||||
|
.alt = alt,
|
||||||
|
.ctrl = ctrl,
|
||||||
|
};
|
||||||
|
|
||||||
|
var kind: MouseEventKind = undefined;
|
||||||
|
var button: MouseButton = undefined;
|
||||||
|
|
||||||
|
if ((cb & 0b1000000) != 0) {
|
||||||
|
// Scroll
|
||||||
|
kind = if (button_bits == 0) .scroll_up else .scroll_down;
|
||||||
|
button = .none;
|
||||||
|
} else if (button_bits == 3) {
|
||||||
|
kind = if (motion) .moved else .up;
|
||||||
|
button = .none;
|
||||||
|
} else {
|
||||||
|
button = switch (button_bits) {
|
||||||
|
0 => .left,
|
||||||
|
1 => .middle,
|
||||||
|
2 => .right,
|
||||||
|
else => .none,
|
||||||
|
};
|
||||||
|
kind = if (motion) .drag else .down;
|
||||||
|
}
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{
|
||||||
|
.mouse = .{
|
||||||
|
.kind = kind,
|
||||||
|
.button = button,
|
||||||
|
.column = cx,
|
||||||
|
.row = cy,
|
||||||
|
.modifiers = mods,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
.consumed = 6,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses a UTF-8 character.
|
||||||
|
fn parseUtf8Char(data: []const u8) ParseResult {
|
||||||
|
const len = std.unicode.utf8ByteSequenceLength(data[0]) catch 1;
|
||||||
|
if (len > data.len) {
|
||||||
|
return .{ .event = null, .consumed = 0 };
|
||||||
|
}
|
||||||
|
|
||||||
|
const codepoint = std.unicode.utf8Decode(data[0..len]) catch ' ';
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = .{ .char = codepoint } } },
|
||||||
|
.consumed = len,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Creates a key result with optional modifiers.
|
||||||
|
fn keyResult(code: KeyCode, params: []const u8, consumed: usize) ParseResult {
|
||||||
|
const params_parsed = parseNumericParams(params);
|
||||||
|
const modifier = modifiersFromParam(params_parsed.second);
|
||||||
|
|
||||||
|
return .{
|
||||||
|
.event = .{ .key = .{ .code = code, .modifiers = modifier } },
|
||||||
|
.consumed = consumed,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses numeric parameters from CSI sequence.
|
||||||
|
fn parseNumericParams(params: []const u8) struct { first: u16, second: u8 } {
|
||||||
|
var first: u16 = 0;
|
||||||
|
var second: u8 = 0;
|
||||||
|
var in_second = false;
|
||||||
|
|
||||||
|
for (params) |c| {
|
||||||
|
if (c >= '0' and c <= '9') {
|
||||||
|
if (in_second) {
|
||||||
|
second = second * 10 + (c - '0');
|
||||||
|
} else {
|
||||||
|
first = first * 10 + @as(u16, c - '0');
|
||||||
|
}
|
||||||
|
} else if (c == ';') {
|
||||||
|
in_second = true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return .{ .first = first, .second = second };
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Converts modifier parameter to KeyModifiers.
|
||||||
|
fn modifiersFromParam(param: u8) KeyModifiers {
|
||||||
|
if (param == 0) return .{};
|
||||||
|
|
||||||
|
const m = param -| 1;
|
||||||
|
return .{
|
||||||
|
.shift = (m & 1) != 0,
|
||||||
|
.alt = (m & 2) != 0,
|
||||||
|
.ctrl = (m & 4) != 0,
|
||||||
|
.super = (m & 8) != 0,
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Tests
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
test "parse single character" {
|
||||||
|
const result = parseEvent("a");
|
||||||
|
try std.testing.expectEqual(@as(usize, 1), result.consumed);
|
||||||
|
const ev = result.event.?.key;
|
||||||
|
try std.testing.expectEqual(@as(u21, 'a'), ev.code.char);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse escape key" {
|
||||||
|
const result = parseEvent(&[_]u8{27});
|
||||||
|
try std.testing.expectEqual(@as(usize, 1), result.consumed);
|
||||||
|
try std.testing.expectEqual(KeyCode.esc, result.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse arrow keys" {
|
||||||
|
// Up arrow: ESC [ A
|
||||||
|
const up = parseEvent("\x1b[A");
|
||||||
|
try std.testing.expectEqual(KeyCode.up, up.event.?.key.code);
|
||||||
|
|
||||||
|
// Down arrow: ESC [ B
|
||||||
|
const down = parseEvent("\x1b[B");
|
||||||
|
try std.testing.expectEqual(KeyCode.down, down.event.?.key.code);
|
||||||
|
|
||||||
|
// Right arrow: ESC [ C
|
||||||
|
const right = parseEvent("\x1b[C");
|
||||||
|
try std.testing.expectEqual(KeyCode.right, right.event.?.key.code);
|
||||||
|
|
||||||
|
// Left arrow: ESC [ D
|
||||||
|
const left = parseEvent("\x1b[D");
|
||||||
|
try std.testing.expectEqual(KeyCode.left, left.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse function keys" {
|
||||||
|
// F1: ESC O P (SS3 sequence)
|
||||||
|
const f1 = parseEvent("\x1bOP");
|
||||||
|
try std.testing.expectEqual(@as(u8, 1), f1.event.?.key.code.f);
|
||||||
|
|
||||||
|
// F5: ESC [ 15 ~
|
||||||
|
const f5 = parseEvent("\x1b[15~");
|
||||||
|
try std.testing.expectEqual(@as(u8, 5), f5.event.?.key.code.f);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse control characters" {
|
||||||
|
// Ctrl+C (0x03)
|
||||||
|
const ctrl_c = parseEvent(&[_]u8{3});
|
||||||
|
const ev = ctrl_c.event.?.key;
|
||||||
|
try std.testing.expectEqual(@as(u21, 'c'), ev.code.char);
|
||||||
|
try std.testing.expect(ev.modifiers.ctrl);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse enter and tab" {
|
||||||
|
// Enter (0x0D)
|
||||||
|
const enter = parseEvent(&[_]u8{13});
|
||||||
|
try std.testing.expectEqual(KeyCode.enter, enter.event.?.key.code);
|
||||||
|
|
||||||
|
// Tab (0x09)
|
||||||
|
const tab = parseEvent(&[_]u8{9});
|
||||||
|
try std.testing.expectEqual(KeyCode.tab, tab.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse alt+key" {
|
||||||
|
// Alt+a: ESC a
|
||||||
|
const alt_a = parseEvent("\x1ba");
|
||||||
|
const ev = alt_a.event.?.key;
|
||||||
|
try std.testing.expectEqual(@as(u21, 'a'), ev.code.char);
|
||||||
|
try std.testing.expect(ev.modifiers.alt);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse delete and insert" {
|
||||||
|
// Delete: ESC [ 3 ~
|
||||||
|
const del = parseEvent("\x1b[3~");
|
||||||
|
try std.testing.expectEqual(KeyCode.delete, del.event.?.key.code);
|
||||||
|
|
||||||
|
// Insert: ESC [ 2 ~
|
||||||
|
const ins = parseEvent("\x1b[2~");
|
||||||
|
try std.testing.expectEqual(KeyCode.insert, ins.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse page up/down" {
|
||||||
|
// Page Up: ESC [ 5 ~
|
||||||
|
const pgup = parseEvent("\x1b[5~");
|
||||||
|
try std.testing.expectEqual(KeyCode.page_up, pgup.event.?.key.code);
|
||||||
|
|
||||||
|
// Page Down: ESC [ 6 ~
|
||||||
|
const pgdn = parseEvent("\x1b[6~");
|
||||||
|
try std.testing.expectEqual(KeyCode.page_down, pgdn.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse home/end" {
|
||||||
|
// Home: ESC [ H
|
||||||
|
const home = parseEvent("\x1b[H");
|
||||||
|
try std.testing.expectEqual(KeyCode.home, home.event.?.key.code);
|
||||||
|
|
||||||
|
// End: ESC [ F
|
||||||
|
const end_key = parseEvent("\x1b[F");
|
||||||
|
try std.testing.expectEqual(KeyCode.end, end_key.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse UTF-8 character" {
|
||||||
|
// UTF-8: é (0xC3 0xA9)
|
||||||
|
const result = parseEvent("\xc3\xa9");
|
||||||
|
try std.testing.expectEqual(@as(usize, 2), result.consumed);
|
||||||
|
try std.testing.expectEqual(@as(u21, 'é'), result.event.?.key.code.char);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse focus events" {
|
||||||
|
// Focus gained: ESC [ I
|
||||||
|
const focus_in = parseEvent("\x1b[I");
|
||||||
|
try std.testing.expectEqual(Event.focus_gained, focus_in.event.?);
|
||||||
|
|
||||||
|
// Focus lost: ESC [ O
|
||||||
|
const focus_out = parseEvent("\x1b[O");
|
||||||
|
try std.testing.expectEqual(Event.focus_lost, focus_out.event.?);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse SGR mouse click" {
|
||||||
|
// Left click at (10, 5): ESC [ < 0 ; 11 ; 6 M
|
||||||
|
const click = parseEvent("\x1b[<0;11;6M");
|
||||||
|
const mouse = click.event.?.mouse;
|
||||||
|
try std.testing.expectEqual(MouseEventKind.down, mouse.kind);
|
||||||
|
try std.testing.expectEqual(MouseButton.left, mouse.button);
|
||||||
|
try std.testing.expectEqual(@as(u16, 10), mouse.column);
|
||||||
|
try std.testing.expectEqual(@as(u16, 5), mouse.row);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse SGR mouse release" {
|
||||||
|
// Left release at (10, 5): ESC [ < 0 ; 11 ; 6 m
|
||||||
|
const release = parseEvent("\x1b[<0;11;6m");
|
||||||
|
const mouse = release.event.?.mouse;
|
||||||
|
try std.testing.expectEqual(MouseEventKind.up, mouse.kind);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "parse backspace" {
|
||||||
|
// Backspace (127)
|
||||||
|
const bs = parseEvent(&[_]u8{127});
|
||||||
|
try std.testing.expectEqual(KeyCode.backspace, bs.event.?.key.code);
|
||||||
|
}
|
||||||
|
|
||||||
|
test "modifiersFromParam" {
|
||||||
|
// param 2 = Shift
|
||||||
|
const shift = modifiersFromParam(2);
|
||||||
|
try std.testing.expect(shift.shift);
|
||||||
|
try std.testing.expect(!shift.ctrl);
|
||||||
|
|
||||||
|
// param 5 = Ctrl
|
||||||
|
const ctrl = modifiersFromParam(5);
|
||||||
|
try std.testing.expect(ctrl.ctrl);
|
||||||
|
try std.testing.expect(!ctrl.shift);
|
||||||
|
|
||||||
|
// param 6 = Shift+Ctrl
|
||||||
|
const both = modifiersFromParam(6);
|
||||||
|
try std.testing.expect(both.shift);
|
||||||
|
try std.testing.expect(both.ctrl);
|
||||||
|
}
|
||||||
133
src/event/reader.zig
Normal file
133
src/event/reader.zig
Normal file
|
|
@ -0,0 +1,133 @@
|
||||||
|
//! Event reader for zcatui.
|
||||||
|
//!
|
||||||
|
//! Provides non-blocking and blocking event reading from stdin.
|
||||||
|
//! Uses poll() for efficient event waiting with timeout support.
|
||||||
|
|
||||||
|
const std = @import("std");
|
||||||
|
const event = @import("../event.zig");
|
||||||
|
const Event = event.Event;
|
||||||
|
const KeyEvent = event.KeyEvent;
|
||||||
|
const KeyCode = event.KeyCode;
|
||||||
|
const KeyModifiers = event.KeyModifiers;
|
||||||
|
const MouseEvent = event.MouseEvent;
|
||||||
|
const MouseEventKind = event.MouseEventKind;
|
||||||
|
const MouseButton = event.MouseButton;
|
||||||
|
const ResizeEvent = event.ResizeEvent;
|
||||||
|
|
||||||
|
const parse = @import("parse.zig");
|
||||||
|
|
||||||
|
/// Event reader for terminal input.
|
||||||
|
///
|
||||||
|
/// Reads and parses terminal escape sequences into structured events.
|
||||||
|
pub const EventReader = struct {
|
||||||
|
stdin: std.fs.File,
|
||||||
|
buffer: [256]u8 = undefined,
|
||||||
|
buffer_len: usize = 0,
|
||||||
|
buffer_pos: usize = 0,
|
||||||
|
|
||||||
|
/// Creates a new event reader.
|
||||||
|
pub fn init() EventReader {
|
||||||
|
return .{
|
||||||
|
.stdin = std.fs.File.stdin(),
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Polls for an event with a timeout.
|
||||||
|
///
|
||||||
|
/// Returns an event if available within the timeout, or null if no event.
|
||||||
|
/// A timeout of 0 means non-blocking (check immediately).
|
||||||
|
/// A timeout of null means block indefinitely.
|
||||||
|
///
|
||||||
|
/// Parameters:
|
||||||
|
/// timeout_ms: Timeout in milliseconds, or null to block forever
|
||||||
|
pub fn poll(self: *EventReader, timeout_ms: ?u32) !?Event {
|
||||||
|
// First check if we have buffered data
|
||||||
|
if (self.buffer_pos < self.buffer_len) {
|
||||||
|
return self.parseBufferedEvent();
|
||||||
|
}
|
||||||
|
|
||||||
|
// Use poll to wait for input
|
||||||
|
var fds = [_]std.posix.pollfd{
|
||||||
|
.{
|
||||||
|
.fd = self.stdin.handle,
|
||||||
|
.events = std.posix.POLL.IN,
|
||||||
|
.revents = 0,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
const timeout: i32 = if (timeout_ms) |t| @intCast(t) else -1;
|
||||||
|
const ready = std.posix.poll(&fds, timeout) catch {
|
||||||
|
// On any error (including interrupt), treat as timeout
|
||||||
|
return null;
|
||||||
|
};
|
||||||
|
|
||||||
|
if (ready == 0) {
|
||||||
|
return null; // Timeout
|
||||||
|
}
|
||||||
|
|
||||||
|
if (fds[0].revents & std.posix.POLL.IN != 0) {
|
||||||
|
return self.readEvent();
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Reads an event, blocking until one is available.
|
||||||
|
pub fn read(self: *EventReader) !Event {
|
||||||
|
while (true) {
|
||||||
|
if (try self.poll(null)) |ev| {
|
||||||
|
return ev;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Reads raw input and parses into an event.
|
||||||
|
fn readEvent(self: *EventReader) !?Event {
|
||||||
|
const n = self.stdin.read(&self.buffer) catch |err| {
|
||||||
|
return switch (err) {
|
||||||
|
error.WouldBlock => null,
|
||||||
|
else => err,
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
if (n == 0) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
self.buffer_len = n;
|
||||||
|
self.buffer_pos = 0;
|
||||||
|
|
||||||
|
return self.parseBufferedEvent();
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Parses an event from the buffer.
|
||||||
|
fn parseBufferedEvent(self: *EventReader) ?Event {
|
||||||
|
if (self.buffer_pos >= self.buffer_len) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
const data = self.buffer[self.buffer_pos..self.buffer_len];
|
||||||
|
const result = parse.parseEvent(data);
|
||||||
|
|
||||||
|
self.buffer_pos += result.consumed;
|
||||||
|
return result.event;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Checks if there's buffered data waiting to be parsed.
|
||||||
|
pub fn hasBufferedData(self: *const EventReader) bool {
|
||||||
|
return self.buffer_pos < self.buffer_len;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Tests
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
test "EventReader creation" {
|
||||||
|
_ = EventReader.init();
|
||||||
|
}
|
||||||
|
|
||||||
|
test "EventReader hasBufferedData" {
|
||||||
|
var reader = EventReader.init();
|
||||||
|
try std.testing.expect(!reader.hasBufferedData());
|
||||||
|
}
|
||||||
30
src/root.zig
30
src/root.zig
|
|
@ -134,6 +134,28 @@ pub const widgets = struct {
|
||||||
// Backend
|
// Backend
|
||||||
pub const backend = @import("backend/backend.zig");
|
pub const backend = @import("backend/backend.zig");
|
||||||
|
|
||||||
|
// Events (crossterm-style)
|
||||||
|
pub const event = @import("event.zig");
|
||||||
|
pub const Event = event.Event;
|
||||||
|
pub const KeyEvent = event.KeyEvent;
|
||||||
|
pub const KeyCode = event.KeyCode;
|
||||||
|
pub const KeyModifiers = event.KeyModifiers;
|
||||||
|
pub const KeyEventKind = event.KeyEventKind;
|
||||||
|
pub const MouseEvent = event.MouseEvent;
|
||||||
|
pub const MouseEventKind = event.MouseEventKind;
|
||||||
|
pub const MouseButton = event.MouseButton;
|
||||||
|
pub const ResizeEvent = event.ResizeEvent;
|
||||||
|
|
||||||
|
pub const event_reader = @import("event/reader.zig");
|
||||||
|
pub const EventReader = event_reader.EventReader;
|
||||||
|
|
||||||
|
pub const event_parse = @import("event/parse.zig");
|
||||||
|
|
||||||
|
// Cursor control
|
||||||
|
pub const cursor = @import("cursor.zig");
|
||||||
|
pub const Cursor = cursor.Cursor;
|
||||||
|
pub const CursorStyle = cursor.CursorStyle;
|
||||||
|
|
||||||
// ============================================================================
|
// ============================================================================
|
||||||
// Tests
|
// Tests
|
||||||
// ============================================================================
|
// ============================================================================
|
||||||
|
|
@ -143,3 +165,11 @@ test "zcatui module compiles" {
|
||||||
_ = style;
|
_ = style;
|
||||||
_ = buffer;
|
_ = buffer;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
test {
|
||||||
|
// Include all module tests
|
||||||
|
_ = @import("event.zig");
|
||||||
|
_ = @import("event/reader.zig");
|
||||||
|
_ = @import("event/parse.zig");
|
||||||
|
_ = @import("cursor.zig");
|
||||||
|
}
|
||||||
|
|
|
||||||
178
src/terminal.zig
178
src/terminal.zig
|
|
@ -1,7 +1,7 @@
|
||||||
//! Terminal abstraction for zcatui.
|
//! Terminal abstraction for zcatui.
|
||||||
//!
|
//!
|
||||||
//! The Terminal struct provides the main entry point for TUI applications.
|
//! The Terminal struct provides the main entry point for TUI applications.
|
||||||
//! It handles initialization, drawing, and cleanup of the terminal state.
|
//! It handles initialization, drawing, event handling, and cleanup.
|
||||||
//!
|
//!
|
||||||
//! ## Example
|
//! ## Example
|
||||||
//!
|
//!
|
||||||
|
|
@ -9,7 +9,22 @@
|
||||||
//! var term = try Terminal.init(allocator);
|
//! var term = try Terminal.init(allocator);
|
||||||
//! defer term.deinit();
|
//! defer term.deinit();
|
||||||
//!
|
//!
|
||||||
|
//! // Optional: enable mouse capture
|
||||||
|
//! try term.enableMouseCapture();
|
||||||
|
//! defer term.disableMouseCapture() catch {};
|
||||||
|
//!
|
||||||
|
//! while (true) {
|
||||||
//! try term.draw(renderFn);
|
//! try term.draw(renderFn);
|
||||||
|
//!
|
||||||
|
//! if (try term.pollEvent(100)) |event| {
|
||||||
|
//! switch (event) {
|
||||||
|
//! .key => |key| if (key.code == .esc) break,
|
||||||
|
//! .mouse => |mouse| handleMouse(mouse),
|
||||||
|
//! .resize => |size| try term.resize(size.width, size.height),
|
||||||
|
//! else => {},
|
||||||
|
//! }
|
||||||
|
//! }
|
||||||
|
//! }
|
||||||
//! ```
|
//! ```
|
||||||
|
|
||||||
const std = @import("std");
|
const std = @import("std");
|
||||||
|
|
@ -18,13 +33,24 @@ const Buffer = buffer.Buffer;
|
||||||
const Rect = buffer.Rect;
|
const Rect = buffer.Rect;
|
||||||
const backend_mod = @import("backend/backend.zig");
|
const backend_mod = @import("backend/backend.zig");
|
||||||
const AnsiBackend = backend_mod.AnsiBackend;
|
const AnsiBackend = backend_mod.AnsiBackend;
|
||||||
|
const event_mod = @import("event.zig");
|
||||||
|
const Event = event_mod.Event;
|
||||||
|
const event_reader = @import("event/reader.zig");
|
||||||
|
const EventReader = event_reader.EventReader;
|
||||||
|
|
||||||
/// Terminal provides the main interface for TUI applications.
|
/// Terminal provides the main interface for TUI applications.
|
||||||
|
///
|
||||||
|
/// Combines rendering (ratatui-style) with event handling (crossterm-style)
|
||||||
|
/// in a single, unified interface.
|
||||||
pub const Terminal = struct {
|
pub const Terminal = struct {
|
||||||
allocator: std.mem.Allocator,
|
allocator: std.mem.Allocator,
|
||||||
backend: AnsiBackend,
|
backend: AnsiBackend,
|
||||||
current_buffer: Buffer,
|
current_buffer: Buffer,
|
||||||
previous_buffer: Buffer,
|
previous_buffer: Buffer,
|
||||||
|
event_reader: EventReader,
|
||||||
|
mouse_enabled: bool = false,
|
||||||
|
focus_enabled: bool = false,
|
||||||
|
bracketed_paste_enabled: bool = false,
|
||||||
|
|
||||||
/// Initializes the terminal for TUI mode.
|
/// Initializes the terminal for TUI mode.
|
||||||
///
|
///
|
||||||
|
|
@ -54,13 +80,26 @@ pub const Terminal = struct {
|
||||||
.backend = backend,
|
.backend = backend,
|
||||||
.current_buffer = current_buffer,
|
.current_buffer = current_buffer,
|
||||||
.previous_buffer = previous_buffer,
|
.previous_buffer = previous_buffer,
|
||||||
|
.event_reader = EventReader.init(),
|
||||||
};
|
};
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Cleans up terminal state.
|
/// Cleans up terminal state.
|
||||||
///
|
///
|
||||||
/// Shows cursor, exits alternate screen, and restores terminal mode.
|
/// Shows cursor, exits alternate screen, and restores terminal mode.
|
||||||
|
/// Also disables any enabled features (mouse, focus, paste).
|
||||||
pub fn deinit(self: *Terminal) void {
|
pub fn deinit(self: *Terminal) void {
|
||||||
|
// Disable enabled features
|
||||||
|
if (self.mouse_enabled) {
|
||||||
|
self.disableMouseCapture() catch {};
|
||||||
|
}
|
||||||
|
if (self.focus_enabled) {
|
||||||
|
self.disableFocusChange() catch {};
|
||||||
|
}
|
||||||
|
if (self.bracketed_paste_enabled) {
|
||||||
|
self.disableBracketedPaste() catch {};
|
||||||
|
}
|
||||||
|
|
||||||
self.backend.disableRawMode() catch {};
|
self.backend.disableRawMode() catch {};
|
||||||
self.backend.showCursor() catch {};
|
self.backend.showCursor() catch {};
|
||||||
self.backend.leaveAlternateScreen() catch {};
|
self.backend.leaveAlternateScreen() catch {};
|
||||||
|
|
@ -146,6 +185,143 @@ pub const Terminal = struct {
|
||||||
self.previous_buffer.clear();
|
self.previous_buffer.clear();
|
||||||
self.current_buffer.markDirty();
|
self.current_buffer.markDirty();
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Event Handling
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Polls for an event with a timeout.
|
||||||
|
///
|
||||||
|
/// Returns an event if one is available within the timeout, or null if
|
||||||
|
/// the timeout expires. A timeout of 0 means non-blocking (check immediately).
|
||||||
|
///
|
||||||
|
/// Parameters:
|
||||||
|
/// timeout_ms: Timeout in milliseconds, or null to block forever
|
||||||
|
///
|
||||||
|
/// Example:
|
||||||
|
/// ```zig
|
||||||
|
/// if (try term.pollEvent(100)) |event| {
|
||||||
|
/// switch (event) {
|
||||||
|
/// .key => |key| handleKey(key),
|
||||||
|
/// .mouse => |mouse| handleMouse(mouse),
|
||||||
|
/// else => {},
|
||||||
|
/// }
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
pub fn pollEvent(self: *Terminal, timeout_ms: ?u32) !?Event {
|
||||||
|
return self.event_reader.poll(timeout_ms);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Reads an event, blocking until one is available.
|
||||||
|
///
|
||||||
|
/// Use pollEvent() with a timeout for non-blocking behavior.
|
||||||
|
pub fn readEvent(self: *Terminal) !Event {
|
||||||
|
return self.event_reader.read();
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Mouse Capture
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Enables mouse event capture.
|
||||||
|
///
|
||||||
|
/// After enabling, mouse events (clicks, movement, scroll) will be
|
||||||
|
/// reported through pollEvent()/readEvent().
|
||||||
|
///
|
||||||
|
/// Uses SGR extended mouse protocol for better coordinate support.
|
||||||
|
pub fn enableMouseCapture(self: *Terminal) !void {
|
||||||
|
if (self.mouse_enabled) return;
|
||||||
|
|
||||||
|
// Enable mouse tracking:
|
||||||
|
// 1000: Normal tracking (button press/release)
|
||||||
|
// 1002: Button event tracking (drag)
|
||||||
|
// 1003: Any event tracking (motion)
|
||||||
|
// 1006: SGR extended mode (better coordinates, release info)
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1000h"); // Enable button events
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1002h"); // Enable button motion
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1003h"); // Enable any motion
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1006h"); // Enable SGR mode
|
||||||
|
|
||||||
|
self.mouse_enabled = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Disables mouse event capture.
|
||||||
|
pub fn disableMouseCapture(self: *Terminal) !void {
|
||||||
|
if (!self.mouse_enabled) return;
|
||||||
|
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1006l");
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1003l");
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1002l");
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1000l");
|
||||||
|
|
||||||
|
self.mouse_enabled = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Focus Events
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Enables focus change events.
|
||||||
|
///
|
||||||
|
/// When enabled, you'll receive Event.focus_gained and Event.focus_lost
|
||||||
|
/// events when the terminal gains or loses focus.
|
||||||
|
pub fn enableFocusChange(self: *Terminal) !void {
|
||||||
|
if (self.focus_enabled) return;
|
||||||
|
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1004h");
|
||||||
|
self.focus_enabled = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Disables focus change events.
|
||||||
|
pub fn disableFocusChange(self: *Terminal) !void {
|
||||||
|
if (!self.focus_enabled) return;
|
||||||
|
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?1004l");
|
||||||
|
self.focus_enabled = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Bracketed Paste
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Enables bracketed paste mode.
|
||||||
|
///
|
||||||
|
/// When enabled, pasted text will be wrapped in escape sequences,
|
||||||
|
/// allowing the application to distinguish between typed and pasted text.
|
||||||
|
/// Pasted content will arrive as Event.paste events.
|
||||||
|
pub fn enableBracketedPaste(self: *Terminal) !void {
|
||||||
|
if (self.bracketed_paste_enabled) return;
|
||||||
|
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?2004h");
|
||||||
|
self.bracketed_paste_enabled = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Disables bracketed paste mode.
|
||||||
|
pub fn disableBracketedPaste(self: *Terminal) !void {
|
||||||
|
if (!self.bracketed_paste_enabled) return;
|
||||||
|
|
||||||
|
_ = try self.backend.stdout.write("\x1b[?2004l");
|
||||||
|
self.bracketed_paste_enabled = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// ========================================================================
|
||||||
|
// Cursor Control
|
||||||
|
// ========================================================================
|
||||||
|
|
||||||
|
/// Shows the cursor.
|
||||||
|
pub fn showCursor(self: *Terminal) !void {
|
||||||
|
try self.backend.showCursor();
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Hides the cursor.
|
||||||
|
pub fn hideCursor(self: *Terminal) !void {
|
||||||
|
try self.backend.hideCursor();
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Sets the cursor position.
|
||||||
|
pub fn setCursorPosition(self: *Terminal, column: u16, row: u16) !void {
|
||||||
|
try self.backend.moveCursor(column, row);
|
||||||
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
// Helper functions for comparison
|
// Helper functions for comparison
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue