A Polymer element providing a declarative way to swipe DOM elements with configurable underlays and trigger some action when the swiping is done. Integrates seamlessly with the <iron-list> element.
Specifically it is causing an access of undefined because on this line in swipe-action.html:
// Line 388 as of the latest release, inside the function activateAction
var actionToActivate = this._actionsMap[actionId];
The this._actionsMap is undefined, the activateAction function is called from _onActivatedActionIdChange when this._activatedActionIdAlreadyChanged is undefined as well. _onActivatedActionIdChange appears to have a dependency on the element being isReady'd first, but that is not shown, thus it is being called before it is ready, and thus crashing.
What should probably happen from a quick look through the code is there should be an isReady check in _onActivatedActionIdChange and if not isReady then it should return early. Then in the function _refreshActions should probably call activateAction or so after it sets this._actionsMap.
Specifically it is causing an access of
undefinedbecause on this line in swipe-action.html:The
this._actionsMapisundefined, theactivateActionfunction is called from_onActivatedActionIdChangewhenthis._activatedActionIdAlreadyChangedisundefinedas well._onActivatedActionIdChangeappears to have a dependency on the element being isReady'd first, but that is not shown, thus it is being called before it is ready, and thus crashing.What should probably happen from a quick look through the code is there should be an isReady check in
_onActivatedActionIdChangeand if not isReady then it should return early. Then in the function_refreshActionsshould probably callactivateActionor so after it setsthis._actionsMap.