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Prevent typeahead from falling off length of list

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Tom MacWright
2013-01-16 15:01:21 -05:00
parent ef1af7a731
commit ad6de1437f
1 changed files with 8 additions and 5 deletions
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13
js/lib/d3.typeahead.js
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@@ -2,7 +2,7 @@ d3.typeahead = function() {
var data;
var typeahead = function(selection) {
var container, hidden, idx = 0;
var container, hidden, idx = -1;
function setup() {
var rect = selection.node().getBoundingClientRect();
@@ -20,7 +20,7 @@ d3.typeahead = function() {
function hide() {
container.remove();
idx = 0;
idx = -1;
hidden = true;
}
@@ -33,14 +33,17 @@ d3.typeahead = function() {
.on('blur.typeahead', slowHide);
function key() {
var len = container.selectAll('a').data().length;
if (d3.event.keyCode === 40) {
idx++;
idx = Math.min(idx + 1, len - 1);
return highlight();
} else if (d3.event.keyCode === 38) {
idx--;
idx = Math.max(idx - 1, 0);
return highlight();
} else if (d3.event.keyCode === 13) {
select(container.select('a.selected').datum());
if (container.select('a.selected').node()) {
select(container.select('a.selected').datum());
}
hide();
} else {
update();