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Defer drag events until first move (fixes #105)

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This commit is contained in:
John Firebaugh
2012-12-03 16:29:41 -05:00
parent c00ea92089
commit cb55cdafe2
1 changed files with 18 additions and 8 deletions
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26
js/id/renderer/map.js
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@@ -14,24 +14,34 @@ iD.Map = function() {
.on('zoom', zoomPan),
only,
dblclickEnabled = true,
dragging = false,
dragbehavior = d3.behavior.drag()
.origin(function(entity) {
var p = projection(ll2a(entity));
only = iD.Util.trueObj([entity.id].concat(
_.pluck(map.history.graph().parents(entity.id), 'id')));
return { x: p[0], y: p[1] };
})
.on('dragstart', function() {
map.history.perform(iD.actions.noop());
d3.event.sourceEvent.stopPropagation();
})
.on('drag', function(entity) {
var to = projection.invert([d3.event.x, d3.event.y]);
d3.event.sourceEvent.stopPropagation();
if (!dragging) {
dragging = true;
only = iD.Util.trueObj([entity.id].concat(
_.pluck(map.history.graph().parents(entity.id), 'id')));
map.history.perform(iD.actions.noop());
}
var to = projection.invert([d3.event.x, d3.event.y]);
map.history.replace(iD.actions.move(entity, to));
redraw(only);
})
.on('dragend', redraw),
.on('dragend', function () {
if (dragging) {
dragging = false;
map.update();
redraw();
}
}),
nodeline = function(d) {
return 'M' + d.nodes.map(ll2a).map(projection).map(roundCoords).join('L');
},