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 | 167x 167x 167x 167x 167x 167x 167x 167x 167x 144x 106x 110x 167x 37x 99x 37x 37x 37x 37x 13x 13x 37x 167x 167x 167x 3x 3x 2x 1x 167x 2x 2x 2x 2x 2x 2x 2x 167x 37x 37x 18x 19x 37x 37x 18x 18x 18x 18x 167x 19x 19x 167x 1x 167x 2x 167x 167x 167x | import { useState, useCallback, useRef, useEffect, useMemo } from "react";
import type { OutputLine } from "@shared/schema";
import { SerialCharacterRenderer } from "@/utils/serial-character-renderer";
import { emitSerialOutput } from "./use-external-api";
export function useSerialIO() {
const [serialOutput, setSerialOutput] = useState<OutputLine[]>([]);
const [serialViewMode, setSerialViewMode] = useState<"monitor" | "plotter" | "both">("monitor");
const [autoScrollEnabled, setAutoScrollEnabled] = useState<boolean>(true);
const [serialInputValue, setSerialInputValue] = useState("");
// Baudrate-simulated rendering
const [renderedSerialText, setRenderedSerialText] = useState<string>("");
const rendererRef = useRef<SerialCharacterRenderer | null>(null);
const emitDebounceRef = useRef<NodeJS.Timeout | null>(null);
const pendingOutputRef = useRef<string>("");
// Convert renderedSerialText to OutputLine[] format for SerialMonitor
const renderedSerialOutput = useMemo<OutputLine[]>(() => {
if (!renderedSerialText) return [];
const lines = renderedSerialText.split('\n');
return lines.map((line, index) => ({
text: line,
complete: index < lines.length - 1, // All lines except last are complete
}));
}, [renderedSerialText]);
// Initialize renderer once and cleanup on unmount
useEffect(() => {
const renderer = new SerialCharacterRenderer((char: string) => {
setRenderedSerialText((prev) => prev + char);
});
rendererRef.current = renderer;
return () => {
renderer.clear();
// Clean up debounce timer on unmount
if (emitDebounceRef.current !== null) {
clearTimeout(emitDebounceRef.current);
emitDebounceRef.current = null;
}
pendingOutputRef.current = "";
};
}, []);
const showSerialMonitor = serialViewMode !== "plotter";
const showSerialPlotter = serialViewMode !== "monitor";
const cycleSerialViewMode = useCallback(() => {
setSerialViewMode((prev) => {
if (prev === "monitor") return "both";
if (prev === "both") return "plotter";
return "monitor";
});
}, []);
const clearSerialOutput = useCallback(() => {
setSerialOutput([]);
Eif (rendererRef.current) {
rendererRef.current.clear();
// Re-enable rendering so the next serial output is displayed.
// clear() pauses the renderer (to stop current animation), but we must
// resume() so that data arriving after the clear is not silently dropped.
rendererRef.current.resume();
}
setRenderedSerialText("");
// Clean up any pending debounced emit
Iif (emitDebounceRef.current !== null) {
clearTimeout(emitDebounceRef.current);
emitDebounceRef.current = null;
}
pendingOutputRef.current = "";
}, []);
// Baudrate rendering methods
const appendSerialOutput = useCallback((text: string) => {
const isTestMode =
globalThis.window !== undefined && (globalThis as any).__PLAYWRIGHT_TEST__;
if (isTestMode) {
// in tests we bypass baudrate rendering to make output appear instantly
setRenderedSerialText((prev) => prev + text);
} else {
rendererRef.current?.enqueue(text);
}
// Emit serial output event to parent frame for dashboard monitoring.
// Start one bounded flush window per batch: subsequent chunks are added to
// the same buffer without postponing the already scheduled flush. This
// preserves ordering while preventing continuous output from starving the
// external API under browsers that throttle timers in iframes.
pendingOutputRef.current += text;
emitDebounceRef.current ??= setTimeout(() => {
emitDebounceRef.current = null;
const output = pendingOutputRef.current;
pendingOutputRef.current = "";
Eif (output) emitSerialOutput(output);
}, 100);
}, []);
const setBaudrate = useCallback((baud: number | undefined) => {
const isTestMode =
globalThis.window !== undefined && (globalThis as any).__PLAYWRIGHT_TEST__;
rendererRef.current?.setBaudrate(isTestMode ? 0 : baud);
}, []);
const pauseRendering = useCallback(() => {
rendererRef.current?.pause();
}, []);
const resumeRendering = useCallback(() => {
rendererRef.current?.resume();
}, []);
/**
* Stop rendering and clear the renderer queue.
* Used on STOP to prevent old data from leaking into the next simulation.
* Unlike pauseRendering(), this discards all pending characters.
*/
const stopRendering = useCallback(() => {
rendererRef.current?.clear();
}, []);
/**
* Inject text directly into rendered output, bypassing the baudrate renderer.
* Used for system messages ("--- Simulation paused ---" etc.) that must
* appear instantly regardless of baudrate.
*/
const appendRenderedText = useCallback((text: string) => {
setRenderedSerialText((prev) => {
// Ensure injected text starts on a new line if current output
// doesn't end with one (e.g., partial serial line was rendering)
if (prev.length > 0 && !prev.endsWith('\n')) {
return prev + '\n' + text;
}
return prev + text;
});
}, []);
return {
// Existing API (unchanged - for backward compatibility and Plotter)
serialOutput,
setSerialOutput,
serialViewMode,
setSerialViewMode,
autoScrollEnabled,
setAutoScrollEnabled,
serialInputValue,
setSerialInputValue,
showSerialMonitor,
showSerialPlotter,
cycleSerialViewMode,
clearSerialOutput,
// New baudrate rendering API
renderedSerialText,
renderedSerialOutput, // OutputLine[] format for SerialMonitor
appendSerialOutput,
setBaudrate,
pauseRendering,
resumeRendering,
stopRendering,
appendRenderedText,
};
}
|