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feat(http-frontend): per-mode bandwidth defaults with live DSP apply

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Add MODE_BW_DEFAULTS table mapping each mode to [default, min, max, step]
in Hz. When mode changes (via picker or SSE), applyBwDefaultForMode
updates the filter bandwidth slider range and sends set_bandwidth to the
server, so the DSP filter is rebuilt automatically for the new mode.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
This commit is contained in:
Stan Grams
2026-02-27 22:09:35 +01:00
parent af9f2e092e
commit 146516c52e
1 changed files with 51 additions and 2 deletions
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src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
+51 -2
View File
@@ -873,7 +873,7 @@ function render(update) {
const firSelect = document.getElementById("fir-taps-select");
if (bwSlider && typeof update.filter.bandwidth_hz === "number") {
bwSlider.value = update.filter.bandwidth_hz;
if (bwValue) bwValue.textContent = (update.filter.bandwidth_hz / 1000).toFixed(1) + " kHz";
if (bwValue) bwValue.textContent = formatBwLabel(update.filter.bandwidth_hz);
}
if (firSelect && typeof update.filter.fir_taps === "number") {
firSelect.value = String(update.filter.fir_taps);
@@ -893,6 +893,13 @@ function render(update) {
if (update.status && update.status.mode) {
const mode = normalizeMode(update.status.mode);
modeEl.value = mode ? mode.toUpperCase() : "";
// When filter panel is active (SDR backend), update the BW slider range
// to match the new mode — but only if the server hasn't already sent a
// filter state that overrides it.
const fp = document.getElementById("filters-panel");
if (fp && fp.style.display !== "none" && !update.filter) {
applyBwDefaultForMode(mode, false);
}
}
const modeUpper = update.status && update.status.mode ? normalizeMode(update.status.mode).toUpperCase() : "";
const aprsStatus = document.getElementById("aprs-status");
@@ -1423,6 +1430,8 @@ async function applyModeFromPicker() {
try {
await postPath(`/set_mode?mode=${encodeURIComponent(mode)}`);
showHint("Mode set", 1500);
// Apply sensible default bandwidth for the new mode and push to server.
await applyBwDefaultForMode(mode, true);
} catch (err) {
showHint("Set mode failed", 2000);
console.error(err);
@@ -1475,6 +1484,46 @@ lockBtn.addEventListener("click", async () => {
});
// --- Filter controls ---
// Per-mode defaults: [default bandwidth Hz, min Hz, max Hz, step Hz]
const MODE_BW_DEFAULTS = {
CW: [500, 50, 2_000, 50],
CWR: [500, 50, 2_000, 50],
LSB: [2_700, 300, 6_000, 100],
USB: [2_700, 300, 6_000, 100],
AM: [6_000, 500, 15_000, 500],
FM: [12_500, 2_500, 25_000, 500],
WFM: [75_000, 50_000,200_000,5_000],
DIG: [3_000, 300, 6_000, 100],
PKT: [3_000, 300, 6_000, 100],
};
const MODE_BW_FALLBACK = [3_000, 300, 500_000, 100];
function mwDefaultsForMode(mode) {
return MODE_BW_DEFAULTS[(mode || "").toUpperCase()] || MODE_BW_FALLBACK;
}
function formatBwLabel(hz) {
if (hz >= 1000) return (hz / 1000).toFixed(hz % 1000 === 0 ? 0 : 1) + " kHz";
return hz + " Hz";
}
// Apply mode-specific BW slider defaults and optionally send to server.
async function applyBwDefaultForMode(mode, sendToServer) {
const bwSlider = document.getElementById("bw-slider");
const bwValue = document.getElementById("bw-value");
if (!bwSlider) return;
const [def, min, max, step] = mwDefaultsForMode(mode);
bwSlider.min = String(min);
bwSlider.max = String(max);
bwSlider.step = String(step);
bwSlider.value = String(def);
if (bwValue) bwValue.textContent = formatBwLabel(def);
if (sendToServer) {
try { await postPath(`/set_bandwidth?hz=${def}`); } catch (_) {}
}
}
(function () {
const bwSlider = document.getElementById("bw-slider");
const bwValue = document.getElementById("bw-value");
@@ -1483,7 +1532,7 @@ lockBtn.addEventListener("click", async () => {
if (bwSlider) {
bwSlider.addEventListener("input", () => {
const hz = Number(bwSlider.value);
if (bwValue) bwValue.textContent = (hz / 1000).toFixed(1) + " kHz";
if (bwValue) bwValue.textContent = formatBwLabel(hz);
});
bwSlider.addEventListener("change", async () => {
const hz = Number(bwSlider.value);