59 lines
No EOL
1.6 KiB
JavaScript
59 lines
No EOL
1.6 KiB
JavaScript
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var Dispatcher = function() {
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var program = null;
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var timestep = 0;
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var inputs = [];
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var currentElement = null;
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var initialize = function() {
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program = Elm.main();
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if (!program.hasOwnProperty('recv')) {
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program = Elm.Signal.constant(program);
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}
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currentElement = program.value;
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filterDeadInputs();
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var content = document.getElementById('content');
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content.appendChild(Render.render(currentElement));
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var w = document.getElementById('widthChecker').offsetWidth;
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if (w !== window.innerWidth) {
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Dispatcher.notify(Elm.Window.dimensions.id, Value.Tuple(w, window.innerHeight));
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}
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program = Elm.Signal.lift(function(value) {
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var content = document.getElementById('content');
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Render.update(content.firstChild,currentElement,value);
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currentElement = value;
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return value;
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})(program);
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};
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var notify = function(id, v) {
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timestep += 1;
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var hasListener = false;
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for (var i = inputs.length; i--; ) {
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hasListener = inputs[i].recv(timestep, id, v) || hasListener;
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}
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return hasListener;
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};
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function isAlive(input) {
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if (!input.hasOwnProperty('defaultNumberOfKids')) return true;
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var len = input.kids.length;
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if (len == 0) return false;
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if (len > input.defaultNumberOfKids) return true;
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var alive = false;
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for (var i = len; i--; ) {
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alive = alive || isAlive(input.kids[i]);
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}
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return alive;
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}
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function filterDeadInputs() {
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var temp = [];
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for (var i = inputs.length; i--; ) {
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if (isAlive(inputs[i])) temp.push(inputs[i]);
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}
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inputs = temp;
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}
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return {initialize:initialize, notify:notify, inputs:inputs};
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}(); |