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[D3.js, Click, Double-Click] Distinguish between click and double-click and use data
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<style> | |
body { margin:0; padding:0; } | |
#map { width:960px; height:500px; background:#000; } | |
</style> | |
</head> | |
<body> | |
<div id='map'></div> | |
<script> | |
function clickcancel() { | |
var event = d3.dispatch('click', 'dblclick'); | |
function cc(selection) { | |
console.log(selection); | |
var down, | |
tolerance = 5, | |
last, | |
wait = null; | |
// euclidean distance | |
function dist(a, b) { | |
return Math.sqrt(Math.pow(a[0] - b[0], 2), Math.pow(a[1] - b[1], 2)); | |
} | |
selection.on('mousedown', function() { | |
down = d3.mouse(document.body); | |
last = +new Date(); | |
}); | |
selection.on('mouseup', function() { | |
if (dist(down, d3.mouse(document.body)) > tolerance) { | |
return; | |
} else { | |
if (wait) { | |
window.clearTimeout(wait); | |
wait = null; | |
event.dblclick(d3.event); | |
} else { | |
wait = window.setTimeout((function(e) { | |
return function() { | |
event.click(e); | |
wait = null; | |
}; | |
})(d3.event), 300); | |
} | |
} | |
}); | |
}; | |
return d3.rebind(cc, event, 'on'); | |
} | |
var cc = clickcancel(); | |
d3.select('#map') | |
.data([100]) | |
.call(cc); | |
cc.on('click', function(el) { | |
console.log("click, data: "); | |
var me = d3.select(el.srcElement) | |
.style("background", "#aaa"); | |
var d = me.data()[0]; | |
console.log(d); | |
}); | |
cc.on('dblclick', function(el) { | |
console.log("dblclick, data: "); | |
var me = d3.select(el.srcElement) | |
.style("background", "#ddd"); | |
var d = me.data()[0]; | |
console.log(d); | |
}); | |
</script> | |
</body> | |
</html> |
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