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Cache transform status

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This commit is contained in:
John Firebaugh
2013-04-29 18:06:11 -07:00
parent 3995e6e8bd
commit 786c2ab540
1 changed files with 6 additions and 8 deletions
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14
js/id/renderer/map.js
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@@ -10,6 +10,7 @@ iD.Map = function(context) {
.on('zoom', zoomPan),
dblclickEnabled = true,
transformStart,
transformed = false,
minzoom = 0,
layers = [
iD.Background().projection(projection),
@@ -55,14 +56,14 @@ iD.Map = function(context) {
.call(iD.svg.Surface(context));
surface.on('mouseover.vertices', function() {
if (map.editable() && !isTransformed()) {
if (map.editable() && !transformed) {
var hover = d3.event.target.__data__;
surface.call(vertices.drawHover, context.graph(), hover, map.zoom());
}
});
surface.on('mouseout.vertices', function() {
if (map.editable() && !isTransformed()) {
if (map.editable() && !transformed) {
var hover = d3.event.relatedTarget && d3.event.relatedTarget.__data__;
surface.call(vertices.drawHover, context.graph(), hover, map.zoom());
}
@@ -168,20 +169,17 @@ iD.Map = function(context) {
'translate(' + tX + 'px,' + tY + 'px)' :
'translate3d(' + tX + 'px,' + tY + 'px, 0)');
transformed = true;
supersurface.style(transformProp, transform);
queueRedraw();
dispatch.move(map);
}
function isTransformed() {
var prop = supersurface.style(transformProp);
return prop && prop !== 'none';
}
function resetTransform() {
if (!isTransformed()) return false;
if (!transformed) return false;
supersurface.style(transformProp, '');
transformed = false;
return true;
}