d53cecf3ba
Planning on having the compiler crawl through to determine dependencies, then compile everything in an appropriate order. This will also let me print out compiler progress in a reasonable order.
81 lines
No EOL
2.4 KiB
JavaScript
81 lines
No EOL
2.4 KiB
JavaScript
/*
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import Signal
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import Native.Misc
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*/
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(function() {
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'use strict';
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var Misc = Elm.Native.Misc;
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var position = Elm.Signal.constant(Misc.Tuple(0,0));
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position.defaultNumberOfKids = 2;
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// do not get rid of x and y. By setting their default number
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// of kids, it is possible to detatch the mouse listeners if
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// they are not needed.
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var x = Elm.Signal.lift(function(p){return p._0})(position);
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x.defaultNumberOfKids = 0;
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var y = Elm.Signal.lift(function(p){return p._1})(position);
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y.defaultNumberOfKids = 0;
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var isDown = Elm.Signal.constant(false);
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var isClicked = Elm.Signal.constant(false);
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var clicks = Elm.Signal.constant(Misc.Tuple());
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function getXY(e) {
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var posx = 0;
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var posy = 0;
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if (!e) e = window.event;
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if (e.pageX || e.pageY) {
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posx = e.pageX;
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posy = e.pageY;
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} else if (e.clientX || e.clientY) {
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posx = e.clientX + document.body.scrollLeft +
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document.documentElement.scrollLeft;
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posy = e.clientY + document.body.scrollTop +
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document.documentElement.scrollTop;
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}
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return Misc.Tuple(posx, posy);
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}
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Misc.addListener(document, 'click', function(e) {
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var hasListener1 = Dispatcher.notify(isClicked.id, true);
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var hasListener2 = Dispatcher.notify(clicks.id, Misc.Tuple());
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Dispatcher.notify(isClicked.id, false);
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if (!hasListener1 && !hasListener2)
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this.removeEventListener('click',arguments.callee,false);
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});
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Misc.addListener(document, 'mousedown', function(e) {
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var hasListener = Dispatcher.notify(isDown.id, true);
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if (!hasListener)
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this.removeEventListener('mousedown',arguments.callee,false);
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});
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Misc.addListener(document, 'mouseup', function(e) {
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var hasListener = Dispatcher.notify(isDown.id, false);
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if (!hasListener)
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this.removeEventListener('mouseup',arguments.callee,false);
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});
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Misc.addListener(document, 'mousemove', function(e) {
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var hasListener = Dispatcher.notify(position.id, getXY(e));
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if (!hasListener)
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this.removeEventListener('mousemove',arguments.callee,false);
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});
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var clickedOn = function(elem) {
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var node = Render.render(elem);
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var click = Elm.Signal.constant(false);
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Misc.addListener(node, 'click', function(e) {
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Dispatcher.notify(click.id, true);
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Dispatcher.notify(click.id, false);
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});
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return Misc.Tuple(Misc.wrap(node), click);
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};
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Elm.Native.Mouse = {position: position,
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x:x,
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y:y,
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isClicked: isClicked,
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isDown: isDown,
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clicks: clicks,
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isClickedOn: clickedOn};
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}()); |