eede03ee3f
Raw terminal mode must be set by the parent process (the shell), not from inside SBCL. sb-ext:run-program subprocesses cannot reliably access the controlling terminal for stty operations. ./demo.sh sets raw mode via stty, runs sbcl --script demo.lisp, and restores terminal state on exit (EXIT, INT, TERM). demo.lisp no longer calls with-raw-terminal — it assumes the calling shell has already set raw mode.
173 lines
8.5 KiB
Common Lisp
173 lines
8.5 KiB
Common Lisp
;;; demo.lisp — cl-tty interactive demo
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;;; Run: sbcl --script demo.lisp
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;; Load cl-tty directly via ASDF (no Quicklisp dependency needed —
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;; sb-posix is built into SBCL, no external libraries required).
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(require "asdf")
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(push (truename ".") asdf:*central-registry*)
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(asdf:load-system :cl-tty)
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(use-package :cl-tty.backend)
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(use-package :cl-tty.input)
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(use-package :cl-tty.box)
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(use-package :cl-tty.layout)
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(use-package :cl-tty.rendering)
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;;; ─── Application state ───────────────────────────────────────────────────────
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(defvar *app* nil "Application state plist")
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(defvar *log* nil "Circular log buffer")
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(defun log-append (fmt &rest args)
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(let* ((msg (apply #'format nil fmt args))
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(ts (multiple-value-bind (h m s) (get-decoded-time)
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(format nil "~2,'0d:~2,'0d:~2,'0d" h m s))))
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(push (format nil "[~a] ~a" ts msg) *log*)
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(when (> (length *log*) 100) (setf *log* (subseq *log* 0 100)))))
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(defun init-app-state ()
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(setf *log* nil)
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(setf *app* (list :tab 0
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:input (make-text-input :placeholder "Type here...")
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:textarea (make-textarea :value "Hello\nWorld")
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:running t
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:mouse-x -1 :mouse-y -1))
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(log-append "Demo started"))
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;;; ─── Tab renderers ──────────────────────────────────────────────────────────
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(defun render-tab-home (backend x y w h)
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"Welcome screen with version info."
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(declare (ignore h))
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(draw-border backend x y w 18 :style :double :title " Welcome ")
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(draw-text backend (+ x 2) (+ y 2) "cl-tty — Pure CL Terminal UI Framework" :bright-white nil :bold t)
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(draw-text backend (+ x 2) (+ y 4) " components: Box, Text, TextInput, TextArea, Select," nil nil)
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(draw-text backend (+ x 2) (+ y 5) " ScrollBox, TabBar, Dialog, Toast, Markdown" nil nil)
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(draw-text backend (+ x 2) (+ y 6) " features: 24-bit truecolor, OSC 8 links, SGR mouse," nil nil)
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(draw-text backend (+ x 2) (+ y 7) " DECICM sync, kitty keyboard, framebuffer" nil nil)
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(draw-text backend (+ x 2) (+ y 8) " backend: modern-backend | simple-backend (pipe-safe)" nil nil)
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(draw-text backend (+ x 2) (+ y 9) " tests: 392, 100% passing" :green nil :bold t)
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(draw-text backend (+ x 2) (+ y 10) " deps: zero FFI, zero ncurses, pure CL" :bright-cyan nil)
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(draw-text backend (+ x 2) (+ y 12) "Controls" :bright-white nil :bold t)
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(draw-text backend (+ x 2) (+ y 13) " Tab / arrows switch tabs" nil nil)
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(draw-text backend (+ x 2) (+ y 14) " q / Ctrl+C / Esc quit" nil nil)
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(draw-text backend (+ x 2) (+ y 15) " mouse click/drag select text (test SGR mouse)" nil nil))
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(defun render-tab-widgets (backend x y w h input ta)
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"Interactive widget demo."
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(declare (ignore h))
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(draw-border backend x y w 12 :style :single :title " Text Input ")
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(let ((val (text-input-value input)))
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(draw-text backend (+ x 2) (+ y 1) "Value: " :text-muted nil)
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(draw-text backend (+ x 10) (+ y 1) (if (plusp (length val)) val "(empty)") :text nil))
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(draw-text backend (+ x 2) (+ y 3) "Placeholder: \"Type here...\"" :text-muted nil)
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(draw-text backend (+ x 2) (+ y 5) "Keys: type to insert, arrows to move," nil nil)
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(draw-text backend (+ x 2) (+ y 6) "Enter to submit, Backspace to delete," nil nil)
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(draw-text backend (+ x 2) (+ y 7) "Ctrl+A/E for home/end" nil nil)
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(when (plusp (length (text-input-value input)))
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(draw-text backend (+ x 2) (+ y 9) (format nil "Submitted: ~a" (text-input-value input)) :accent nil))
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(let ((y2 (+ y 13)))
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(draw-border backend x y2 w 10 :style :single :title " TextArea ")
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(draw-text backend (+ x 2) (+ y2 1) "Value:" :text-muted nil)
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(let ((lines (textarea-lines ta)))
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(loop for line in lines
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for row from 0 below (min (length lines) 6)
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do (draw-text backend (+ x 2) (+ y2 2 row)
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(subseq (or line "") 0 (min (length line) (- w 4))) nil nil)))))
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(defun render-tab-console (backend x y w h)
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"Event log / debug console."
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(draw-border backend x y w h :style :single :title " Event Log ")
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(draw-text backend (+ x 2) (+ y 1) "Last 50 keyboard and mouse events:" :text-muted nil)
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(let ((lines *log*)
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(max-rows (- h 3)))
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(loop for line in (subseq lines 0 (min (length lines) max-rows))
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for row from 0 below max-rows
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do (draw-text backend (+ x 2) (+ y 3 row)
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(subseq (or line "") 0 (min (length line) (- w 4))) nil nil))))
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;;; ─── Main loop ──────────────────────────────────────────────────────────────
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(defun handle-event (event)
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"Process a key-event or mouse-event, returning t if consumed."
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(typecase event
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(key-event
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(let ((key (key-event-key event))
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(ctrl (key-event-ctrl event)))
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(log-append "Key: ~a (ctrl=~a alt=~a shift=~a)" key ctrl (key-event-alt event) (key-event-shift event))
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(cond
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((or (eql key :|Q|) (and ctrl (eql key :|C|)) (eql key :escape))
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(setf (getf *app* :running) nil) t)
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((eql key :tab)
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(incf (getf *app* :tab))
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(when (> (getf *app* :tab) 2) (setf (getf *app* :tab) 0)) t)
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((eql key :left)
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(decf (getf *app* :tab))
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(when (minusp (getf *app* :tab)) (setf (getf *app* :tab) 2)) t)
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((eql key :right)
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(incf (getf *app* :tab))
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(when (> (getf *app* :tab) 2) (setf (getf *app* :tab) 0)) t)
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;; Forward key to widgets for testing
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(t (handle-text-input (getf *app* :input) event)
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(handle-textarea-input (getf *app* :textarea) event)
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t))))
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(mouse-event
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(log-append "Mouse: ~a btn=~a pos=(~d,~d)" (mouse-event-type event)
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(mouse-event-button event) (mouse-event-x event) (mouse-event-y event))
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(setf (getf *app* :mouse-x) (mouse-event-x event)
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(getf *app* :mouse-y) (mouse-event-y event))
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t)))
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(defun run-demo ()
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"Run the demo. Raw terminal mode should already be set by the
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./demo.sh shell wrapper."
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(init-app-state)
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(let* ((backend (detect-backend))
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(w 80) (h 24))
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(declare (ignore h))
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(initialize-backend backend)
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(unwind-protect
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(loop while (getf *app* :running)
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do
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(backend-clear backend)
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;; Title bar
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(draw-border backend 2 1 (- w 4) 3 :style :double :title " cl-tty v0.15.0 ")
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(draw-text backend 4 2 "arrows/tab: tabs type: test input mouse: test SGR q/esc: quit"
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:bright-white nil)
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;; Tab bar
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(loop for (label . idx) in '((" Home " . 0) (" Widgets " . 1) (" Console " . 2))
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for x-pos = 4 then (+ x-pos label-len 2)
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for label-len = (length label)
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do (let ((active (eql idx (getf *app* :tab))))
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(if active
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(draw-text backend x-pos 4 label :bright-white :accent :bold t)
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(draw-text backend x-pos 4 label :text-muted nil))))
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;; Content area
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(case (getf *app* :tab)
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(0 (render-tab-home backend 4 6 72 20))
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(1 (render-tab-widgets backend 4 6 72 24
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(getf *app* :input)
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(getf *app* :textarea)))
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(2 (render-tab-console backend 4 6 72 16)))
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;; Mouse cursor indicator
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(let ((mx (getf *app* :mouse-x))
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(my (getf *app* :mouse-y)))
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(when (and (>= mx 0) (>= my 0))
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(draw-text backend mx my "@" :bright-cyan nil)))
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;; Status bar
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(draw-rect backend 2 23 (- w 4) 1 :bg :blue)
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(draw-text backend 4 23
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(format nil " Tab ~d/3 | ~d events "
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(1+ (getf *app* :tab)) (length *log*))
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:bright-white :blue :bold t)
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(finish-output *standard-output*)
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;; Read event — blocks until a key or mouse event arrives
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(let ((event (read-event backend)))
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(when event
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(handle-event event))))
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(shutdown-backend backend))))
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(run-demo)
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(uiop:quit 0)
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