1 files changed, 61 insertions, 0 deletions
diff --git a/sdc-workflow-designer-ui/src/app/paletx/core/overlay/overlay-state.ts b/sdc-workflow-designer-ui/src/app/paletx/core/overlay/overlay-state.ts
new file mode 100644
index 00000000..73d6b54d
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/paletx/core/overlay/overlay-state.ts
@@ -0,0 +1,61 @@
+/**
+ * @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*/
+import {Direction} from '@angular/cdk';
+
+import {PositionStrategy} from './position/position-strategy';
+import {ScrollStrategy} from './scroll/scroll-strategy';
+
+
+/**
+ * OverlayState is a bag of values for either the initial configuration or
+ * current state of an overlay.
+ */
+export class OverlayState {
+  /** Strategy with which to position the overlay. */
+  positionStrategy: PositionStrategy;
+
+  /** Strategy to be used when handling scroll events while the overlay is open.
+   */
+  scrollStrategy: ScrollStrategy;
+
+  /** Custom class to add to the overlay pane. */
+  panelClass = '';
+
+  /** Whether the overlay has a backdrop. */
+  hasBackdrop = false;
+
+  /** Custom class to add to the backdrop */
+  backdropClass = 'cdk-overlay-dark-backdrop';
+
+  /** The width of the overlay panel. If a number is provided, pixel units are
+   * assumed. */
+  width?: number|string;
+
+  /** The height of the overlay panel. If a number is provided, pixel units are
+   * assumed. */
+  height?: number|string;
+
+  /** The min-width of the overlay panel. If a number is provided, pixel units
+   * are assumed. */
+  minWidth?: number|string;
+
+  /** The min-height of the overlay panel. If a number is provided, pixel units
+   * are assumed. */
+  minHeight?: number|string;
+
+  /** The direction of the text in the overlay panel. */
+  direction?: Direction = 'ltr';
+
+  // TODO(jelbourn): configuration still to add
+  // - focus trap
+  // - disable pointer events
+  // - z-index
+}