340 lines
11 KiB
JavaScript
340 lines
11 KiB
JavaScript
function DemodulatorPanel(el) {
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var self = this;
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self.el = el;
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self.demodulator = null;
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self.mode = null;
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self.squelchMargin = 10;
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var displayEl = el.find('.webrx-actual-freq')
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this.tuneableFrequencyDisplay = displayEl.tuneableFrequencyDisplay();
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displayEl.on('frequencychange', function(event, freq) {
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self.getDemodulator().set_offset_frequency(freq - self.center_freq);
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});
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Modes.registerModePanel(this);
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el.on('click', '.openwebrx-demodulator-button', function() {
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var modulation = $(this).data('modulation');
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if (modulation) {
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self.setMode(modulation);
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} else {
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self.disableDigiMode();
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}
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});
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el.on('change', '.openwebrx-secondary-demod-listbox', function() {
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var value = $(this).val();
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if (value === 'none') {
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self.disableDigiMode();
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} else {
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self.setMode(value);
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}
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});
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el.on('click', '.openwebrx-squelch-auto', function() {
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if (!self.squelchAvailable()) return;
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el.find('.openwebrx-squelch-slider').val(getLogSmeterValue(smeter_level) + self.getSquelchMargin());
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self.updateSquelch();
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});
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el.on('change', '.openwebrx-squelch-slider', function() {
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self.updateSquelch();
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});
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window.addEventListener('hashchange', function() {
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self.onHashChange();
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});
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};
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DemodulatorPanel.prototype.render = function() {
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var available = Modes.getModes().filter(function(m){ return m.isAvailable(); });
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var normalModes = available.filter(function(m){ return m.type === 'analog'; });
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var digiModes = available.filter(function(m){ return m.type === 'digimode'; });
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var html = []
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var buttons = normalModes.map(function(m){
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return $(
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'<div ' +
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'class="openwebrx-button openwebrx-demodulator-button" ' +
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'data-modulation="' + m.modulation + '" ' +
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'id="openwebrx-button-' + m.modulation + '" r' +
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'>' + m.name + '</div>'
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);
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});
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var $modegrid = $('<div class="openwebrx-modes-grid"></div>');
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$modegrid.append.apply($modegrid, buttons);
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html.push($modegrid);
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html.push($(
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'<div class="openwebrx-panel-line openwebrx-panel-flex-line">' +
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'<div class="openwebrx-button openwebrx-demodulator-button openwebrx-button-dig">DIG</div>' +
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'<select class="openwebrx-secondary-demod-listbox">' +
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'<option value="none"></option>' +
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digiModes.map(function(m){
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return '<option value="' + m.modulation + '">' + m.name + '</option>';
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}).join('') +
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'</select>' +
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'</div>'
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));
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this.el.find(".openwebrx-modes").html(html);
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};
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DemodulatorPanel.prototype.setMode = function(requestedModulation) {
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var mode = Modes.findByModulation(requestedModulation);
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if (!mode) {
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return;
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}
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if (this.mode === mode) {
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return;
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}
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if (!mode.isAvailable()) {
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divlog('Modulation "' + mode.name + '" not supported. Please check requirements', true);
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return;
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}
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if (mode.type === 'digimode') {
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modulation = mode.underlying[0];
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} else {
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if (this.mode && this.mode.type === 'digimode' && this.mode.underlying.indexOf(requestedModulation) >= 0) {
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// keep the mode, just switch underlying modulation
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mode = this.mode;
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modulation = requestedModulation;
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} else {
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modulation = mode.modulation;
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}
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}
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var current = this.collectParams();
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if (this.demodulator) {
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current.offset_frequency = this.demodulator.get_offset_frequency();
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current.squelch_level = this.demodulator.getSquelch();
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}
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this.stopDemodulator();
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this.demodulator = new Demodulator(current.offset_frequency, modulation);
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this.demodulator.setSquelch(current.squelch_level);
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var self = this;
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var updateFrequency = function(freq) {
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self.tuneableFrequencyDisplay.setFrequency(self.center_freq + freq);
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self.updateHash();
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};
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this.demodulator.on("frequencychange", updateFrequency);
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updateFrequency(this.demodulator.get_offset_frequency());
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var updateSquelch = function(squelch) {
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self.el.find('.openwebrx-squelch-slider')
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.val(squelch)
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.attr('title', 'Squelch (' + squelch + ' dB)');
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self.updateHash();
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};
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this.demodulator.on('squelchchange', updateSquelch);
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updateSquelch(this.demodulator.getSquelch());
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if (mode.type === 'digimode') {
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this.demodulator.set_secondary_demod(mode.modulation);
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if (mode.bandpass) {
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this.demodulator.setBandpass(mode.bandpass);
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}
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} else {
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this.demodulator.set_secondary_demod(false);
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}
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this.demodulator.start();
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this.mode = mode;
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this.updateButtons();
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this.updatePanels();
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this.updateHash();
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};
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DemodulatorPanel.prototype.disableDigiMode = function() {
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// just a little trick to get out of the digimode
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delete this.mode;
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this.setMode(this.getDemodulator().get_modulation());
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};
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DemodulatorPanel.prototype.updatePanels = function() {
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var modulation = this.getDemodulator().get_secondary_demod();
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$('#openwebrx-panel-digimodes').attr('data-mode', modulation);
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toggle_panel("openwebrx-panel-digimodes", !!modulation);
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toggle_panel("openwebrx-panel-wsjt-message", ['ft8', 'wspr', 'jt65', 'jt9', 'ft4'].indexOf(modulation) >= 0);
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toggle_panel("openwebrx-panel-js8-message", modulation == "js8");
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toggle_panel("openwebrx-panel-packet-message", modulation === "packet");
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toggle_panel("openwebrx-panel-pocsag-message", modulation === "pocsag");
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modulation = this.getDemodulator().get_modulation();
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var showing = 'openwebrx-panel-metadata-' + modulation;
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$(".openwebrx-meta-panel").each(function (_, p) {
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toggle_panel(p.id, p.id === showing);
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});
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clear_metadata();
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};
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DemodulatorPanel.prototype.getDemodulator = function() {
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return this.demodulator;
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};
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DemodulatorPanel.prototype.collectParams = function() {
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var defaults = {
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offset_frequency: 0,
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squelch_level: -150,
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mod: 'nfm'
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}
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return $.extend(new Object(), defaults, this.initialParams || {}, this.transformHashParams(this.parseHash()));
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};
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DemodulatorPanel.prototype.startDemodulator = function() {
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if (!Modes.initComplete() || !this.center_freq) return;
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var params = this.collectParams();
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this._apply(params);
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};
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DemodulatorPanel.prototype.stopDemodulator = function() {
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if (!this.demodulator) {
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return;
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}
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this.demodulator.stop();
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this.demodulator = null;
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this.mode = null;
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}
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DemodulatorPanel.prototype._apply = function(params) {
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this.setMode(params.mod);
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this.getDemodulator().set_offset_frequency(params.offset_frequency);
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this.getDemodulator().setSquelch(params.squelch_level);
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this.updateButtons();
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};
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DemodulatorPanel.prototype.setInitialParams = function(params) {
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this.initialParams = params;
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};
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DemodulatorPanel.prototype.onHashChange = function() {
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this._apply(this.transformHashParams(this.parseHash()));
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};
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DemodulatorPanel.prototype.transformHashParams = function(params) {
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var ret = {
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mod: params.secondary_mod || params.mod
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};
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if (typeof(params.offset_frequency) !== 'undefined') ret.offset_frequency = params.offset_frequency;
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if (typeof(params.sql) !== 'undefined') ret.squelch_level = parseInt(params.sql);
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return ret;
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};
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DemodulatorPanel.prototype.squelchAvailable = function () {
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return this.mode && this.mode.squelch;
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}
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DemodulatorPanel.prototype.updateButtons = function() {
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var $buttons = this.el.find(".openwebrx-demodulator-button");
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$buttons.removeClass("highlighted").removeClass('same-mod');
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var demod = this.getDemodulator()
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if (!demod) return;
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this.el.find('[data-modulation=' + demod.get_modulation() + ']').addClass("highlighted");
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var secondary_demod = demod.get_secondary_demod()
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if (secondary_demod) {
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this.el.find(".openwebrx-button-dig").addClass("highlighted");
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this.el.find('.openwebrx-secondary-demod-listbox').val(secondary_demod);
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var mode = Modes.findByModulation(secondary_demod);
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if (mode) {
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var self = this;
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mode.underlying.filter(function(m) {
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return m !== demod.get_modulation();
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}).forEach(function(m) {
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self.el.find('[data-modulation=' + m + ']').addClass('same-mod')
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});
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}
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} else {
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this.el.find('.openwebrx-secondary-demod-listbox').val('none');
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}
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var squelch_disabled = !this.squelchAvailable();
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this.el.find('.openwebrx-squelch-slider').prop('disabled', squelch_disabled);
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this.el.find('.openwebrx-squelch-auto')[squelch_disabled ? 'addClass' : 'removeClass']('disabled');
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}
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DemodulatorPanel.prototype.setCenterFrequency = function(center_freq) {
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var me = this;
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if (me.centerFreqTimeout) {
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clearTimeout(me.centerFreqTimeout);
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me.centerFreqTimeout = false;
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}
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this.centerFreqTimeout = setTimeout(function() {
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me.stopDemodulator();
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me.center_freq = center_freq;
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me.startDemodulator();
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me.centerFreqTimeout = false;
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}, 50);
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};
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DemodulatorPanel.prototype.parseHash = function() {
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if (!window.location.hash) {
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return {};
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}
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var params = window.location.hash.substring(1).split(",").map(function(x) {
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var harr = x.split('=');
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return [harr[0], harr.slice(1).join('=')];
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}).reduce(function(params, p){
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params[p[0]] = p[1];
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return params;
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}, {});
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return this.validateHash(params);
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};
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DemodulatorPanel.prototype.validateHash = function(params) {
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var self = this;
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params = Object.keys(params).filter(function(key) {
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if (key == 'freq' || key == 'mod' || key == 'secondary_mod' || key == 'sql') {
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return params.freq && Math.abs(params.freq - self.center_freq) < bandwidth / 2;
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}
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return true;
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}).reduce(function(p, key) {
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p[key] = params[key];
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return p;
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}, {});
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if (params['freq']) {
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params['offset_frequency'] = params['freq'] - self.center_freq;
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delete params['freq'];
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}
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return params;
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};
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DemodulatorPanel.prototype.updateHash = function() {
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var demod = this.getDemodulator();
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if (!demod) return;
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var self = this;
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window.location.hash = $.map({
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freq: demod.get_offset_frequency() + self.center_freq,
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mod: demod.get_modulation(),
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secondary_mod: demod.get_secondary_demod(),
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sql: demod.getSquelch(),
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}, function(value, key){
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if (typeof(value) === 'undefined' || value === false) return undefined;
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return key + '=' + value;
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}).filter(function(v) {
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return !!v;
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}).join(',');
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};
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DemodulatorPanel.prototype.updateSquelch = function() {
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var sliderValue = parseInt(this.el.find(".openwebrx-squelch-slider").val());
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var demod = this.getDemodulator();
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if (demod) demod.setSquelch(sliderValue);
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};
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DemodulatorPanel.prototype.setSquelchMargin = function(margin) {
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if (!margin || this.squelchMargin == margin) return;
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this.squelchMargin = margin;
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};
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DemodulatorPanel.prototype.getSquelchMargin = function() {
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return this.squelchMargin;
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};
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$.fn.demodulatorPanel = function(){
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if (!this.data('panel')) {
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this.data('panel', new DemodulatorPanel(this));
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};
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return this.data('panel');
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}; |