47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
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define([
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'jquery', 'knockout', 'text!./metar.html'
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], function(jquery, ko, htmlString) {
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function ViewModel(params) {
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var NO_METAR = "no METAR";
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self.scrolledMetar = ko.observable("");
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self.textStart = 0;
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self.metar = ko.observable(NO_METAR);
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self.valid = ko.observable(false).extend({ fgprop: 'metar-valid' });
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self.valid.subscribe(function(newValue) {
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self.textStart = 0;
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if( false == newValue ) {
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self.metar(NO_METAR);
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return;
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}
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self.metar("Wait..");
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jquery.get('/json/environment/metar/data', null, function(data) {
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self.textStart = 0;
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self.metar(data.value);
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});
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});
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self.textLength = 20;
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self.timeout = 300;
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self.timerId = setInterval(function() {
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var t = self.metar() + " " + self.metar();
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var a = self.textStart;
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var b = a+self.textLength;
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self.scrolledMetar( t.substring(a,b) );
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if( ++a >= self.metar().length )
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a = 0;
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self.textStart = a;
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}, self.timeout );
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}
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ViewModel.prototype.dispose = function() {
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clearInterval( self.timerId );
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}
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// Return component definition
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return {
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viewModel : ViewModel,
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template : htmlString
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};
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});
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