1 files changed, 0 insertions, 110 deletions
diff --git a/sdc-workflow-designer-ui/src/app/paletx/core/overlay/position/viewport-ruler.ts b/sdc-workflow-designer-ui/src/app/paletx/core/overlay/position/viewport-ruler.ts
deleted file mode 100644
index 298cd642..00000000
--- a/sdc-workflow-designer-ui/src/app/paletx/core/overlay/position/viewport-ruler.ts
+++ /dev/null
@@ -1,110 +0,0 @@
-/**
- * @license
- * Copyright Google Inc. All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/* tslint:disable:array-type member-access variable-name typedef
- only-arrow-functions directive-class-suffix component-class-suffix
- component-selector no-unnecessary-type-assertion arrow-parens*/
-import {Injectable, Optional, SkipSelf} from '@angular/core';
-import {ScrollDispatcher} from '../scroll/scroll-dispatcher';
-
-
-/**
- * Simple utility for getting the bounds of the browser viewport.
- * @docs-private
- */
-@Injectable()
-export class ViewportRuler {
-  /** Cached document client rectangle. */
-  private _documentRect?: ClientRect;
-
-  constructor(scrollDispatcher: ScrollDispatcher) {
-    // Subscribe to scroll and resize events and update the document rectangle
-    // on changes.
-	scrollDispatcher.scrolled(0, () => this._cacheViewportGeometry());
-  }
-
-  /** Gets a ClientRect for the viewport's bounds. */
-  getViewportRect(documentRect = this._documentRect): ClientRect {
-    // Cache the document bounding rect so that we don't recompute it for
-    // multiple calls.
-	if (!documentRect) {
-		this._cacheViewportGeometry();
-		documentRect = this._documentRect;
-	}
-
-    // Use the document element's bounding rect rather than the window scroll
-    // properties (e.g. pageYOffset, scrollY) due to in issue in Chrome and IE
-    // where window scroll properties and client coordinates
-    // (boundingClientRect, clientX/Y, etc.) are in different conceptual
-    // viewports. Under most circumstances these viewports are equivalent, but
-    // they can disagree when the page is pinch-zoomed (on devices that support
-    // touch). See
-    // https://bugs.chromium.org/p/chromium/issues/detail?id=489206#c4 We use
-    // the documentElement instead of the body because, by default (without a
-    // css reset) browsers typically give the document body an 8px margin, which
-    // is not included in getBoundingClientRect().
-	const scrollPosition = this.getViewportScrollPosition(documentRect);
-	const height = window.innerHeight;
-	const width = window.innerWidth;
-
-	return {
-		top: scrollPosition.top,
-		left: scrollPosition.left,
-		bottom: scrollPosition.top + height,
-		right: scrollPosition.left + width,
-		height,
-		width,
-	};
-  }
-
-
-  /**
-   * Gets the (top, left) scroll position of the viewport.
-   * @param documentRect
-   */
-  getViewportScrollPosition(documentRect = this._documentRect) {
-    // Cache the document bounding rect so that we don't recompute it for
-    // multiple calls.
-	if (!documentRect) {
-		this._cacheViewportGeometry();
-		documentRect = this._documentRect;
-	}
-
-    // The top-left-corner of the viewport is determined by the scroll position
-    // of the document body, normally just (scrollLeft, scrollTop). However,
-    // Chrome and Firefox disagree about whether `document.body` or
-    // `document.documentElement` is the scrolled element, so reading
-    // `scrollTop` and `scrollLeft` is inconsistent. However, using the bounding
-    // rect of `document.documentElement` works consistently, where the `top`
-    // and `left` values will equal negative the scroll position.
-	const top = -documentRect.top || document.body.scrollTop ||
-		window.scrollY || document.documentElement.scrollTop || 0;
-
-	const left = -documentRect.left || document.body.scrollLeft ||
-		window.scrollX || document.documentElement.scrollLeft || 0;
-
-	return {top, left};
-  }
-
-  /** Caches the latest client rectangle of the document element. */
-  _cacheViewportGeometry() {
-	this._documentRect = document.documentElement.getBoundingClientRect();
-  }
-}
-
-export function VIEWPORT_RULER_PROVIDER_FACTORY(
-	parentRuler: ViewportRuler, scrollDispatcher: ScrollDispatcher) {
-  return parentRuler || new ViewportRuler(scrollDispatcher);
-}
-
-export const VIEWPORT_RULER_PROVIDER = {
-  // If there is already a ViewportRuler available, use that. Otherwise, provide
-  // a new one.
-  provide: ViewportRuler,
-  deps: [[new Optional(), new SkipSelf(), ViewportRuler], ScrollDispatcher],
-  useFactory: VIEWPORT_RULER_PROVIDER_FACTORY
-};