Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 | 1x 1x 1x 18x 18x 18x 18x 18x 18x 18x 9x 9x 9x 9x 9x 9x 9x 3220x 604x 3220x 539x 539x 65x 65x 2254x 483x 2254x 2254x 6x 477x 966x 121x 966x 6x 115x 121x 966x 966x 966x 644x 644x 164x 164x 164x 480x 480x 480x 9x 9x 9x 6x 3x 152x 3x 9x 9x 9x 7x 7x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 9x 9x 9x 9x 9x 9x 108x 108x 108x 18x 18x 108x 18x 18x 18x 18x 143x 101x 36x 36x 143x 68x 68x 15x 3x 3x 12x 3x 23x 3220x 3220x 3220x 23x 3220x 3220x 143x 143x 143x 23x 3220x 3220x 16x 16x 23x 3328x 23x 2254x 2254x 2254x 2254x 2254x 2254x 2254x 2254x 2254x 2254x 161x 161x 23x 161x 2254x 23x 966x 966x 966x 966x 966x 966x 966x 966x 966x 966x 966x 966x 966x 23x 161x 966x 23x 161x 161x 161x 161x 161x 161x 161x 161x 161x 161x 23x 161x 161x 152x 152x 9x 54x 54x 9x 54x 54x 54x 23x 161x 161x 161x 161x 161x 161x 161x 161x 23x 23x 23x 23x | import { useEffect } from "react";
import type { PinState } from "@/components/features/arduino-board";
// Constants
const VIEWBOX_HEIGHT = 209;
const PWM_PINS = [3, 5, 6, 9, 10, 11];
const FADE_OUT_MS = 200;
/**
* Helper function to get computed typography token values
* Reads CSS variables and returns the actual pixel value considering font scaling.
* Handles calc() expressions by reading --ui-font-scale directly and multiplying.
*/
function getComputedTokenValue(tokenName: string): string {
const BASE_SIZES: Record<string, number> = {
'--fs-label-sm': 8,
'--fs-label-lg': 12,
};
try {
const computedStyle = getComputedStyle(document.documentElement);
// Read --ui-font-scale (stored as plain number e.g. "1" or "1.25")
const scaleStr = computedStyle.getPropertyValue('--ui-font-scale').trim();
const scale = Number.parseFloat(scaleStr) || 1;
const base = BASE_SIZES[tokenName];
Eif (base !== undefined) return String(base * scale);
// Fallback: try to parse the raw value (works for plain px values)
const value = computedStyle.getPropertyValue(tokenName).trim();
const n = Number.parseFloat(value.replace(/px$/, ''));
return Number.isNaN(n) ? '8' : String(n);
} catch {
return String(BASE_SIZES[tokenName] ?? 8);
}
}
/**
* Gets computed spacing token values at runtime
*/
function getComputedSpacingToken(tokenName: string): number {
try {
const root = document.documentElement;
const computedStyle = getComputedStyle(root);
const value = computedStyle.getPropertyValue(tokenName).trim();
Iif (value.includes('rem')) {
return Number.parseFloat(value) * 16;
}
Iif (value.includes('px')) {
return Number.parseFloat(value);
}
return Number.parseFloat(value);
} catch {
if (tokenName === '--svg-safe-margin') return 4;
if (tokenName === '--svg-label-padding') return 2;
return 4;
}
}
// ─── Pure module-level helpers (no hook state needed) ───────────────────────
type LabelRotateOpts = { translateY: number; localX: number; anchor: string };
function applyPinStateDot(el: SVGCircleElement | null, color: string): void {
if (!el) return;
const isOff = color === "transparent" || color === "var(--color-black)";
if (isOff) {
el.setAttribute("fill", "var(--color-black)");
el.removeAttribute("filter");
} else {
el.setAttribute("fill", color);
el.setAttribute("filter", "url(#glow-red)");
}
}
function applyDigitalPinFrame(
frame: SVGRectElement | null,
isSimulationRunning: boolean,
isInput: boolean,
): void {
if (!frame) return;
const show = isSimulationRunning && isInput;
frame.style.display = show ? "block" : "none";
if (show) {
frame.setAttribute("filter", "url(#glow-yellow)");
} else {
frame.removeAttribute("filter");
}
}
function applyAnalogPinFrame(
frame: SVGRectElement | null,
show: boolean,
usedAsAnalog: boolean,
): void {
if (!frame) return;
frame.style.display = show ? "block" : "none";
if (show) {
frame.setAttribute("filter", "url(#glow-yellow)");
} else {
frame.removeAttribute("filter");
}
Iif (frame instanceof SVGGraphicsElement) {
frame.style.strokeDasharray = show && usedAsAnalog ? "3,2" : "";
}
}
function applyAnalogPinClick(
click: SVGRectElement | null,
isInput: boolean,
usedAsAnalog: boolean,
): void {
Eif (!click || !(click instanceof HTMLElement)) return;
const clickable = isInput || usedAsAnalog;
click.style.pointerEvents = clickable ? "auto" : "none";
click.style.cursor = clickable ? "pointer" : "default";
}
function applyLedVisual(
el: SVGRectElement | null,
active: boolean,
activeColor: string,
glowFilter: string,
): void {
Iif (!el) return;
if (active) {
el.setAttribute("fill", activeColor);
el.setAttribute("fill-opacity", "1");
el.style.filter = `url(${glowFilter})`;
} else {
el.setAttribute("fill", "transparent");
el.setAttribute("fill-opacity", "0");
el.style.filter = "none";
}
}
function computeLabelPosition(bb: DOMRect, cy: number): LabelRotateOpts {
const padding = getComputedSpacingToken("--svg-label-padding");
const fontSize = Number.parseFloat(getComputedTokenValue("--fs-label-sm"));
if (cy < VIEWBOX_HEIGHT / 2) {
return {
translateY: cy - bb.height / 2 - fontSize / 2 - padding,
localX: -bb.width / 2 + padding,
anchor: "start",
};
}
return {
translateY: cy + bb.height / 2 + fontSize / 2 + padding,
localX: bb.width / 2 - padding,
anchor: "end",
};
}
function hideAllLabels(svgEl: SVGSVGElement): void {
for (const n of svgEl.querySelectorAll('text[id^="pin-"][id$="-val"]')) {
Eif (n instanceof SVGElement) n.setAttribute("style", "display: none;");
}
}
interface SvgTextOpts {
textValue: string;
fill: string;
showPWMValues: boolean;
rotate?: LabelRotateOpts;
}
function ensureSvgText(
svgEl: SVGSVGElement,
id: string,
x: number,
y: number,
opts: SvgTextOpts,
): void {
const { textValue, fill, showPWMValues, rotate } = opts;
let t = svgEl.querySelector<SVGTextElement>(`#${id}`);
if (t) {
t.setAttribute("font-size", getComputedTokenValue("--fs-label-sm"));
Eif (rotate) t.setAttribute("text-anchor", rotate.anchor);
} else {
t = document.createElementNS("http://www.w3.org/2000/svg", "text");
t.setAttribute("id", id);
t.setAttribute("text-anchor", rotate?.anchor ?? "middle");
t.setAttribute("font-size", getComputedTokenValue("--fs-label-sm"));
t.setAttribute("fill", fill);
t.setAttribute("stroke", "var(--color-black)");
t.setAttribute("stroke-width", "0.4");
t.setAttribute("paint-order", "stroke");
t.setAttribute("dominant-baseline", "middle");
t.setAttribute("style", "pointer-events: none;");
svgEl.appendChild(t);
}
t.textContent = textValue;
if (rotate) {
t.setAttribute("transform", `translate(${x} ${rotate.translateY}) rotate(-90)`);
t.setAttribute("x", String(rotate.localX));
t.setAttribute("y", "0");
} else E{
t.setAttribute("x", String(x));
t.setAttribute("y", String(y));
t.removeAttribute("transform");
}
t.style.display = textValue && showPWMValues ? "block" : "none";
}
function updateLabelForPin(
svgEl: SVGSVGElement,
stateElId: string,
frameElId: string,
labelId: string,
pinValue: string,
showPWMValues: boolean,
): void {
const stateEl = svgEl.querySelector<SVGCircleElement>(`#${stateElId}`);
const frameEl = svgEl.querySelector<SVGRectElement>(`#${frameElId}`);
if (!stateEl && !frameEl) return;
try {
const refEl = (stateEl instanceof SVGGraphicsElement ? stateEl : frameEl) as SVGGraphicsElement | null;
Iif (!refEl) return;
const bb = refEl.getBBox();
const cy = bb.y + bb.height / 2;
const cx = bb.x + bb.width / 2;
ensureSvgText(svgEl, labelId, cx, cy, {
textValue: pinValue,
fill: "var(--color-white)",
showPWMValues,
rotate: computeLabelPosition(bb, cy),
});
} catch {
// ignore bbox errors
}
}
/** Compute brightness for a pin considering the fade-out animation. */
function computeFadeBrightness(isHigh: boolean, turnedOffAt: number | undefined): number {
if (isHigh) return 1;
if (!turnedOffAt) return 0;
const elapsed = Date.now() - turnedOffAt;
return elapsed < FADE_OUT_MS ? 1 - elapsed / FADE_OUT_MS : 0;
}
/** Map a pin state + brightness to an RGB color string. */
function pinColorForState(state: PinState, pin: number, brightness: number): string {
if (brightness <= 0) return "var(--color-black)";
const intensity = Math.round(brightness * 255);
if (state.type === "digital") return `rgb(${intensity}, 0, 0)`;
if (PWM_PINS.includes(pin)) {
const pwmIntensity = Math.round((state.value / 255) * intensity);
return `rgb(${pwmIntensity}, 0, 0)`;
}
if (state.value >= 255) return `rgb(${intensity}, 0, 0)`;
return "var(--color-black)";
}
// ─────────────────────────────────────────────────────────────────────────────
interface UsePinPollingEngineProps {
overlayRef: React.RefObject<HTMLElement>;
stateRef: React.MutableRefObject<{
pinStates: PinState[];
isSimulationRunning: boolean;
txBlink: boolean;
rxBlink: boolean;
analogPins: number[];
showPWMValues: boolean;
}>;
pinIsOnRef: React.MutableRefObject<Map<number, boolean>>;
pinTurnedOffAtRef: React.MutableRefObject<Map<number, number>>;
}
/**
* Custom hook that manages the 10ms polling loop for SVG pin/LED updates
* Handles DOM manipulation for digital pins, analog pins, LEDs, and labels
*/
export function usePinPollingEngine({
overlayRef,
stateRef,
pinIsOnRef,
pinTurnedOffAtRef,
}: UsePinPollingEngineProps) {
/**
* Check if pin is INPUT mode
*/
const isPinInputLocal = (pin: number): boolean => {
const pinStates = stateRef.current.pinStates;
const state = pinStates.find((p) => p.pin === pin);
return (
state !== undefined &&
(state.mode === "INPUT" || state.mode === "INPUT_PULLUP")
);
};
/**
* Get pin color with fade-out effect for OFF LEDs
*/
const getPinColor = (pin: number): string => {
const state = stateRef.current.pinStates.find((p) => p.pin === pin);
if (!state) return "transparent";
const turnedOffAt = pinTurnedOffAtRef.current.get(pin);
const brightness = computeFadeBrightness(state.value > 0, turnedOffAt);
return pinColorForState(state, pin, brightness);
};
/** Track LED fade-out state when a pin turns on/off. */
const trackPinFadeState = (pin: number, isHigh: boolean) => {
const wasOn = pinIsOnRef.current.get(pin) ?? false;
if (wasOn !== isHigh) {
pinIsOnRef.current.set(pin, isHigh);
if (!isHigh) pinTurnedOffAtRef.current.set(pin, Date.now());
}
};
const getPinState = (pin: number) => {
return stateRef.current.pinStates.find((p) => p.pin === pin);
};
/** Update a single digital pin element. */
const updateDigitalPin = (svgEl: SVGSVGElement, pin: number) => {
const frame = svgEl.querySelector<SVGRectElement>(`#pin-${pin}-frame`);
const state = svgEl.querySelector<SVGCircleElement>(`#pin-${pin}-state`);
const click = svgEl.querySelector<SVGRectElement>(`#pin-${pin}-click`);
const isInput = isPinInputLocal(pin);
const pinState = getPinState(pin);
trackPinFadeState(pin, !!(pinState && pinState.value > 0));
const color = getPinColor(pin);
applyDigitalPinFrame(frame, stateRef.current.isSimulationRunning, isInput);
applyPinStateDot(state, color);
if (click) {
click.style.pointerEvents = isInput ? "auto" : "none";
click.style.cursor = isInput ? "pointer" : "default";
}
};
/**
* Update digital pins 0-13 visual representation
*/
const updateDigitalPins = (svgEl: SVGSVGElement) => {
for (let pin = 0; pin <= 13; pin++) {
updateDigitalPin(svgEl, pin);
}
};
/** Update a single analog pin element. */
const updateAnalogPin = (svgEl: SVGSVGElement, pinIndex: number) => {
const pinNumber = 14 + pinIndex;
const frame = svgEl.querySelector<SVGRectElement>(`#pin-A${pinIndex}-frame`);
const state = svgEl.querySelector<SVGCircleElement>(`#pin-A${pinIndex}-state`);
const click = svgEl.querySelector<SVGRectElement>(`#pin-A${pinIndex}-click`);
const isInput = isPinInputLocal(pinNumber);
const pinState = getPinState(pinNumber);
trackPinFadeState(pinNumber, !!(pinState && pinState.value > 0));
const usedAsAnalog = stateRef.current.analogPins.includes(pinNumber);
const color = getPinColor(pinNumber);
const show = stateRef.current.isSimulationRunning && (isInput || usedAsAnalog);
applyAnalogPinFrame(frame, show, usedAsAnalog);
applyPinStateDot(state, color);
applyAnalogPinClick(click, isInput, usedAsAnalog);
};
/**
* Update analog pins A0-A5 visual representation
*/
const updateAnalogPins = (svgEl: SVGSVGElement) => {
for (let i = 0; i <= 5; i++) {
updateAnalogPin(svgEl, i);
}
};
/**
* Update all LEDs (ON, L, TX, RX)
*/
const updateLEDs = (svgEl: SVGSVGElement) => {
const { pinStates, isSimulationRunning, txBlink, rxBlink } = stateRef.current;
const ledOn = svgEl.querySelector<SVGRectElement>("#led-on");
const ledL = svgEl.querySelector<SVGRectElement>("#led-l");
const ledTx = svgEl.querySelector<SVGRectElement>("#led-tx");
const ledRx = svgEl.querySelector<SVGRectElement>("#led-rx");
const pin13On = (pinStates.find((p) => p.pin === 13)?.value ?? 0) > 0;
applyLedVisual(ledOn, isSimulationRunning, "var(--color-led-green)", "#glow-green");
applyLedVisual(ledL, pin13On, "var(--color-led-yellow)", "#glow-yellow");
applyLedVisual(ledTx, txBlink, "var(--color-led-yellow)", "#glow-yellow");
applyLedVisual(ledRx, rxBlink, "var(--color-led-yellow)", "#glow-yellow");
};
/**
* Update numeric labels for PWM and analog pins
*/
const updateLabels = (svgEl: SVGSVGElement) => {
const { showPWMValues } = stateRef.current;
if (!showPWMValues) {
hideAllLabels(svgEl);
return;
}
for (const pin of PWM_PINS) {
const valStr = getPinState(pin)?.value?.toString() ?? "";
updateLabelForPin(svgEl, `pin-${pin}-state`, `pin-${pin}-frame`, `pin-${pin}-val`, valStr, showPWMValues);
}
for (let i = 0; i <= 5; i++) {
const pinNumber = 14 + i;
const valStr = getPinState(pinNumber)?.value?.toString() ?? "";
updateLabelForPin(svgEl, `pin-A${i}-state`, `pin-A${i}-frame`, `pin-A${i}-val`, valStr, showPWMValues);
}
};
/**
* Main update function that runs every 10ms
*/
const performAllUpdates = () => {
const overlay = overlayRef.current;
Iif (!overlay) return;
const svgEl = overlay.querySelector("svg");
Iif (!svgEl) return;
updateDigitalPins(svgEl);
updateAnalogPins(svgEl);
updateLEDs(svgEl);
updateLabels(svgEl);
};
// Set up the polling loop
useEffect(() => {
const intervalId = setInterval(performAllUpdates, 10);
performAllUpdates();
return () => clearInterval(intervalId);
}, []); // Empty dep array - polling loop never restarts, reads from stateRef which is always current
}
|