@catull/igniteui-angular
Version:
Ignite UI for Angular is a dependency-free Angular toolkit for building modern web apps
67 lines • 7.82 kB
JavaScript
import { __extends } from "tslib";
import { ScrollStrategy } from './scroll-strategy';
/**
* On scroll reposition the overlay content.
*/
var AbsoluteScrollStrategy = /** @class */ (function (_super) {
__extends(AbsoluteScrollStrategy, _super);
function AbsoluteScrollStrategy(scrollContainer) {
var _this = _super.call(this, scrollContainer) || this;
_this._initialized = false;
_this.onScroll = function (e) {
var overlayInfo = _this._overlayService.getOverlayById(_this._id);
if (!overlayInfo) {
return;
}
if (!overlayInfo.elementRef.nativeElement.contains(e.target)) {
_this._overlayService.reposition(_this._id);
}
};
_this._scrollContainer = scrollContainer;
return _this;
}
/** @inheritdoc */
AbsoluteScrollStrategy.prototype.initialize = function (document, overlayService, id) {
if (this._initialized) {
return;
}
this._overlayService = overlayService;
this._id = id;
this._document = document;
this._zone = overlayService.getOverlayById(id).ngZone;
this._initialized = true;
};
/** @inheritdoc */
AbsoluteScrollStrategy.prototype.attach = function () {
var _this = this;
if (this._zone) {
this._zone.runOutsideAngular(function () {
_this.addScrollEventListener();
});
}
else {
this.addScrollEventListener();
}
};
/** @inheritdoc */
AbsoluteScrollStrategy.prototype.detach = function () {
if (this._scrollContainer) {
this._scrollContainer.removeEventListener('scroll', this.onScroll, true);
}
else {
this._document.removeEventListener('scroll', this.onScroll, true);
}
this._initialized = false;
};
AbsoluteScrollStrategy.prototype.addScrollEventListener = function () {
if (this._scrollContainer) {
this._scrollContainer.addEventListener('scroll', this.onScroll, true);
}
else {
this._document.addEventListener('scroll', this.onScroll, true);
}
};
return AbsoluteScrollStrategy;
}(ScrollStrategy));
export { AbsoluteScrollStrategy };
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