custom build with pointerEvent - openlayers-3

Question

I can not find where to export "pointerEvent" for my custom build. I am checking the "shiftKey" status of the pointerEvent in two places.
on a singleclick event:
evt.pointerEvent.shiftKey
on a boxend event:
evt.mapBrowserEvent.pointerEvent.shiftKey
I can't seem to figure out what I need in my build config.json file. I've tried various combinations of "ol.interaction.*" and "ol.events.*" without sucess. I've grep'd the source for occurrences of "pointerEvent" and "mapBrowserEvent.pointerEvent" and tried to reference those in my exports but I'm pretty much guessing at this point.
Thanks

Answer 1

Probably not a great answer because I don't understand the "why", but for the record - I'm checking the shiftKey status after a singleClick event. With a debug build of ol3 the following code works:
myVar = evt.pointerEvent.shiftKey; // only works with a debug build
But fails with a non-debug ol3 build. The version below works with non-debug builds:
myVar = ol.events.condition.shiftKeyOnly(evt);
to check the shiftKey status after a boxend event add the mapBrowserEvent property of the event object:
myVar = ol.events.condition.shiftKeyOnly(evt.mapBrowserEvent);
When I say a "non-debug" ol3 build above I'm referring to "compilation_level" directive being set to "ADVANCED".

Answer 2

UPDATE:
Some tests:
custom-build.json and fiddle with this custom build (86KB).
{
"exports": [
"ol.Map",
"ol.Map#on",
"ol.Map#addInteraction",
"ol.layer.Tile",
"ol.source.OSM",
"ol.interaction.DragBox",
"ol.interaction.DragBox#on",
"ol.events.condition.shiftKeyOnly",
"ol.View"
],
"compile": {
"externs": [
"externs/closure-compiler.js",
"externs/oli.js",
"externs/olx.js",
"externs/proj4js.js"
],
"define": [
"ol.ENABLE_DOM=false",
"ol.ENABLE_WEBGL=false",
"ol.ENABLE_PROJ4JS=false",
"ol.ENABLE_VECTOR=false",
"goog.array.ASSUME_NATIVE_FUNCTIONS=true",
"goog.DEBUG=false"
],
"extra_annotation_name": [
"api", "observable"
],
"compilation_level": "ADVANCED",
"manage_closure_dependencies": true
}
}
There's nothing special you should put in you config.json.
Add to your exports array:
"exports": [
...
"ol.events.condition.shiftKeyOnly"
]
Try this after build:
map.on('singleclick', function(evt){
console.info(ol.events.condition.shiftKeyOnly(evt));
});