DragSupportDetectorNo class
Detector for permutations that do not support drag events.
class DragSupportDetectorNo extends DragSupportDetector {
bool get isSupported => false;
}
Extends
DragSupportDetector > DragSupportDetectorNo
Properties
final bool isSupported #
Using a run-time check, return true if drag events are supported.
@return true if supported, false otherwise.
docs inherited from DragSupportDetector
bool get isSupported => false;
Methods
bool detectDragSupport() #
inherited from DragSupportDetector
bool detectDragSupport() {
dart_html.DivElement elem = new dart_html.DivElement();
try {
elem.onDragStart.listen((dart_html.Event evt){
return;
});
} on Exception catch(e) {
return false;
}
return true;//(typeof elem.ondragstart) == "function";
}