openwebrx-clone/htdocs/lib/DemodulatorPanel.js

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function DemodulatorPanel(el) {
var self = this;
self.el = el;
self.demodulator = null;
var displayEl = el.find('.webrx-actual-freq')
this.tuneableFrequencyDisplay = displayEl.tuneableFrequencyDisplay();
displayEl.on('frequencychange', function(event, freq) {
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self.getDemodulator().set_offset_frequency(freq - self.center_freq);
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});
Modes.registerModePanel(this);
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el.on('click', '.openwebrx-demodulator-button', function() {
var modulation = $(this).data('modulation');
if (modulation) {
self.setMode(modulation);
} else {
self.disableDigiMode();
}
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});
el.on('change', '.openwebrx-secondary-demod-listbox', function() {
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var value = $(this).val();
if (value === 'none') {
self.disableDigiMode();
} else {
self.setMode(value);
}
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});
};
DemodulatorPanel.prototype.render = function() {
var available = Modes.getModes().filter(function(m){ return m.isAvailable(); });
var normalModes = available.filter(function(m){ return m.type === 'analog'; });
var digiModes = available.filter(function(m){ return m.type === 'digimode'; });
var html = []
var buttons = normalModes.map(function(m){
return $(
'<div ' +
'class="openwebrx-button openwebrx-demodulator-button" ' +
'data-modulation="' + m.modulation + '" ' +
'id="openwebrx-button-' + m.modulation + '" r' +
'>' + m.name + '</div>'
);
});
var index = 0;
var arrayLength = buttons.length;
var chunks = [];
for (index = 0; index < arrayLength; index += 5) {
chunks.push(buttons.slice(index, index + 5));
}
html.push.apply(html, chunks.map(function(chunk){
$line = $('<div class="openwebrx-panel-line openwebrx-panel-flex-line"></div>');
$line.append.apply($line, chunk);
return $line
}));
html.push($(
'<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">' +
'<option value="none"></option>' +
digiModes.map(function(m){
return '<option value="' + m.modulation + '">' + m.name + '</option>';
}).join('') +
'</select>' +
'</div>'
));
this.el.find(".openwebrx-modes").html(html);
};
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DemodulatorPanel.prototype.setMode = function(modulation) {
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var mode = Modes.findByModulation(modulation);
if (!mode) {
return;
}
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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if (mode.type === 'digimode') {
modulation = mode.underlying[0];
}
var current_offset_frequency = 0;
var current_modulation = false;
if (this.demodulator) {
current_modulation = this.demodulator.get_modulation();
current_offset_frequency = this.demodulator.get_offset_frequency();
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}
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var replace_modulator = current_modulation !== modulation;
if (replace_modulator) {
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if (this.demodulator) this.demodulator.stop();
this.demodulator = new Demodulator(current_offset_frequency, modulation);
var self = this;
this.demodulator.on("frequencychange", function(freq) {
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self.tuneableFrequencyDisplay.setFrequency(self.center_freq + freq);
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updateHash();
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});
}
if (mode.type === 'digimode') {
this.demodulator.set_secondary_demod(mode.modulation);
} else {
this.demodulator.set_secondary_demod(false);
}
if (replace_modulator) {
this.demodulator.start();
}
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this.updateButtons();
this.updatePanels();
updateHash();
};
DemodulatorPanel.prototype.disableDigiMode = function() {
var modulation = this.el.find('.openwebrx-button.highlighted[data-modulation]').data('modulation');
this.setMode(modulation);
};
DemodulatorPanel.prototype.updatePanels = function() {
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);
toggle_panel("openwebrx-panel-js8-message", modulation == "js8");
toggle_panel("openwebrx-panel-packet-message", modulation === "packet");
toggle_panel("openwebrx-panel-pocsag-message", modulation === "pocsag");
};
DemodulatorPanel.prototype.getDemodulator = function() {
return this.demodulator;
};
DemodulatorPanel.prototype.startDemodulator = function() {
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var params = $.extend(this.initialParams || {}, this.transformHashParams(validateHash()));
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this._apply(params);
};
DemodulatorPanel.prototype._apply = function(params) {
this.setMode(params.mod);
this.getDemodulator().set_offset_frequency(params.offset_frequency);
this.updateButtons();
};
DemodulatorPanel.prototype.setInitialParams = function(params) {
this.initialParams = params;
};
DemodulatorPanel.prototype.setHashParams = function(params) {
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this._apply(this.transformHashParams(params));
};
DemodulatorPanel.prototype.transformHashParams = function(params) {
return {
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mod: params.secondary_mod || params.mod,
offset_frequency: params.offset_frequency
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};
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};
DemodulatorPanel.prototype.updateButtons = function() {
var $buttons = this.el.find(".openwebrx-demodulator-button");
$buttons.removeClass("highlighted").removeClass('disabled');
var demod = this.getDemodulator()
if (!demod) return;
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this.el.find('[data-modulation=' + demod.get_modulation() + ']').addClass("highlighted");
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");
this.el.find('.openwebrx-secondary-demod-listbox').val(secondary_demod);
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var mode = Modes.findByModulation(secondary_demod);
if (mode) {
$buttons.filter(function(){
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var mod = $(this).data('modulation');
return mod && mode.underlying.indexOf(mod) < 0;
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}).addClass('disabled');
}
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} else {
this.el.find('.openwebrx-secondary-demod-listbox').val('none');
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}
}
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DemodulatorPanel.prototype.setCenterFrequency = function(center_freq) {
if (this.center_freq === center_freq) {
return ;
}
this.center_freq = center_freq;
var demod = this.getDemodulator();
if (demod) {
this.tuneableFrequencyDisplay.setFrequency(center_freq + demod.get_offset_frequency());
}
updateHash();
};
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$.fn.demodulatorPanel = function(){
if (!this.data('panel')) {
this.data('panel', new DemodulatorPanel(this));
};
return this.data('panel');
};