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From scottyas...@apache.org
Subject [15/51] [partial] nifi-fds git commit: initial commit of demo application
Date Thu, 22 Mar 2018 20:41:10 GMT
http://git-wip-us.apache.org/repos/asf/nifi-fds/blob/0bfc8d89/node_modules/@angular/cdk/esm2015/overlay.js.map
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diff --git a/node_modules/@angular/cdk/esm2015/overlay.js.map b/node_modules/@angular/cdk/esm2015/overlay.js.map
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+{"version":3,"file":"overlay.js","sources":["../../packages/cdk/overlay/scroll/noop-scroll-strategy.js","../../packages/cdk/overlay/overlay-config.js","../../packages/cdk/overlay/overlay-ref.js","../../packages/cdk/overlay/position/connected-position.js","../../packages/cdk/overlay/position/scroll-clip.js","../../packages/cdk/overlay/position/connected-position-strategy.js","../../packages/cdk/overlay/position/global-position-strategy.js","../../packages/cdk/overlay/position/overlay-position-builder.js","../../packages/cdk/overlay/overlay-container.js","../../packages/cdk/overlay/scroll/scroll-strategy.js","../../packages/cdk/overlay/scroll/close-scroll-strategy.js","../../packages/cdk/overlay/scroll/block-scroll-strategy.js","../../packages/cdk/overlay/scroll/reposition-scroll-strategy.js","../../packages/cdk/overlay/scroll/scroll-strategy-options.js","../../packages/cdk/overlay/overlay.js","../../packages/cdk/overlay/fullscreen-overlay-container.js","../../packages/cdk/overlay/ove
 rlay-directives.js","../../packages/cdk/overlay/overlay-module.js","../../packages/cdk/overlay/index.js"],"sourcesContent":["/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Scroll strategy that doesn't do anything.\n */\nexport class NoopScrollStrategy {\n    /**\n     * @return {?}\n     */\n    enable() { }\n    /**\n     * @return {?}\n     */\n    disable() { }\n    /**\n     * @return {?}\n     */\n    attach() { }\n}\n//# sourceMappingURL=noop-scroll-strategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { NoopScrollStrategy } from './scroll/noop-scroll-strategy';\n/**\n * OverlayConfig captures the initial configuration used when op
 ening an overlay.\n */\nexport class OverlayConfig {\n    /**\n     * @param {?=} config\n     */\n    constructor(config) {\n        /**\n         * Strategy to be used when handling scroll events while the overlay is open.\n         */\n        this.scrollStrategy = new NoopScrollStrategy();\n        /**\n         * Custom class to add to the overlay pane.\n         */\n        this.panelClass = '';\n        /**\n         * Whether the overlay has a backdrop.\n         */\n        this.hasBackdrop = false;\n        /**\n         * Custom class to add to the backdrop\n         */\n        this.backdropClass = 'cdk-overlay-dark-backdrop';\n        /**\n         * The direction of the text in the overlay panel.\n         */\n        this.direction = 'ltr';\n        if (config) {\n            Object.keys(config).forEach(key => this[key] = config[key]);\n        }\n    }\n}\nfunction OverlayConfig_tsickle_Closure_declarations() {\n    /**\n     * Strategy with which to position the ove
 rlay.\n     * @type {?}\n     */\n    OverlayConfig.prototype.positionStrategy;\n    /**\n     * Strategy to be used when handling scroll events while the overlay is open.\n     * @type {?}\n     */\n    OverlayConfig.prototype.scrollStrategy;\n    /**\n     * Custom class to add to the overlay pane.\n     * @type {?}\n     */\n    OverlayConfig.prototype.panelClass;\n    /**\n     * Whether the overlay has a backdrop.\n     * @type {?}\n     */\n    OverlayConfig.prototype.hasBackdrop;\n    /**\n     * Custom class to add to the backdrop\n     * @type {?}\n     */\n    OverlayConfig.prototype.backdropClass;\n    /**\n     * The width of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.width;\n    /**\n     * The height of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.height;\n    /**\n     * The min-width of the overlay panel. If
  a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.minWidth;\n    /**\n     * The min-height of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.minHeight;\n    /**\n     * The max-width of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.maxWidth;\n    /**\n     * The max-height of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.maxHeight;\n    /**\n     * The direction of the text in the overlay panel.\n     * @type {?}\n     */\n    OverlayConfig.prototype.direction;\n}\n//# sourceMappingURL=overlay-config.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angula
 r.io/license\n */\nimport { Subject } from 'rxjs/Subject';\n/**\n * Reference to an overlay that has been created with the Overlay service.\n * Used to manipulate or dispose of said overlay.\n */\nexport class OverlayRef {\n    /**\n     * @param {?} _portalHost\n     * @param {?} _pane\n     * @param {?} _config\n     * @param {?} _ngZone\n     */\n    constructor(_portalHost, _pane, _config, _ngZone) {\n        this._portalHost = _portalHost;\n        this._pane = _pane;\n        this._config = _config;\n        this._ngZone = _ngZone;\n        this._backdropElement = null;\n        this._backdropClick = new Subject();\n        this._attachments = new Subject();\n        this._detachments = new Subject();\n        if (_config.scrollStrategy) {\n            _config.scrollStrategy.attach(this);\n        }\n    }\n    /**\n     * The overlay's HTML element\n     * @return {?}\n     */\n    get overlayElement() {\n        return this._pane;\n    }\n    /**\n     * Attaches the overlay
  to a portal instance and adds the backdrop.\n     * @param {?} portal Portal instance to which to attach the overlay.\n     * @return {?} The portal attachment result.\n     */\n    attach(portal) {\n        let /** @type {?} */ attachResult = this._portalHost.attach(portal);\n        if (this._config.positionStrategy) {\n            this._config.positionStrategy.attach(this);\n        }\n        // Update the pane element with the given configuration.\n        this._updateStackingOrder();\n        this.updateSize();\n        this.updateDirection();\n        this.updatePosition();\n        if (this._config.scrollStrategy) {\n            this._config.scrollStrategy.enable();\n        }\n        // Enable pointer events for the overlay pane element.\n        this._togglePointerEvents(true);\n        if (this._config.hasBackdrop) {\n            this._attachBackdrop();\n        }\n        if (this._config.panelClass) {\n            // We can't do a spread here, because IE doesn't suppo
 rt setting multiple classes.\n            if (Array.isArray(this._config.panelClass)) {\n                this._config.panelClass.forEach(cls => this._pane.classList.add(cls));\n            }\n            else {\n                this._pane.classList.add(this._config.panelClass);\n            }\n        }\n        // Only emit the `attachments` event once all other setup is done.\n        this._attachments.next();\n        return attachResult;\n    }\n    /**\n     * Detaches an overlay from a portal.\n     * @return {?} The portal detachment result.\n     */\n    detach() {\n        this.detachBackdrop();\n        // When the overlay is detached, the pane element should disable pointer events.\n        // This is necessary because otherwise the pane element will cover the page and disable\n        // pointer events therefore. Depends on the position strategy and the applied pane boundaries.\n        this._togglePointerEvents(false);\n        if (this._config.positionStrategy && this.
 _config.positionStrategy.detach) {\n            this._config.positionStrategy.detach();\n        }\n        if (this._config.scrollStrategy) {\n            this._config.scrollStrategy.disable();\n        }\n        const /** @type {?} */ detachmentResult = this._portalHost.detach();\n        // Only emit after everything is detached.\n        this._detachments.next();\n        return detachmentResult;\n    }\n    /**\n     * Cleans up the overlay from the DOM.\n     * @return {?}\n     */\n    dispose() {\n        if (this._config.positionStrategy) {\n            this._config.positionStrategy.dispose();\n        }\n        if (this._config.scrollStrategy) {\n            this._config.scrollStrategy.disable();\n        }\n        this.detachBackdrop();\n        this._portalHost.dispose();\n        this._attachments.complete();\n        this._backdropClick.complete();\n        this._detachments.next();\n        this._detachments.complete();\n    }\n    /**\n     * Checks whether the ov
 erlay has been attached.\n     * @return {?}\n     */\n    hasAttached() {\n        return this._portalHost.hasAttached();\n    }\n    /**\n     * Returns an observable that emits when the backdrop has been clicked.\n     * @return {?}\n     */\n    backdropClick() {\n        return this._backdropClick.asObservable();\n    }\n    /**\n     * Returns an observable that emits when the overlay has been attached.\n     * @return {?}\n     */\n    attachments() {\n        return this._attachments.asObservable();\n    }\n    /**\n     * Returns an observable that emits when the overlay has been detached.\n     * @return {?}\n     */\n    detachments() {\n        return this._detachments.asObservable();\n    }\n    /**\n     * Gets the current config of the overlay.\n     * @return {?}\n     */\n    getConfig() {\n        return this._config;\n    }\n    /**\n     * Updates the position of the overlay based on the position strategy.\n     * @return {?}\n     */\n    updatePosition() {\n   
      if (this._config.positionStrategy) {\n            this._config.positionStrategy.apply();\n        }\n    }\n    /**\n     * Updates the text direction of the overlay panel.\n     * @return {?}\n     */\n    updateDirection() {\n        this._pane.setAttribute('dir', /** @type {?} */ ((this._config.direction)));\n    }\n    /**\n     * Updates the size of the overlay based on the overlay config.\n     * @return {?}\n     */\n    updateSize() {\n        if (this._config.width || this._config.width === 0) {\n            this._pane.style.width = formatCssUnit(this._config.width);\n        }\n        if (this._config.height || this._config.height === 0) {\n            this._pane.style.height = formatCssUnit(this._config.height);\n        }\n        if (this._config.minWidth || this._config.minWidth === 0) {\n            this._pane.style.minWidth = formatCssUnit(this._config.minWidth);\n        }\n        if (this._config.minHeight || this._config.minHeight === 0) {\n            this
 ._pane.style.minHeight = formatCssUnit(this._config.minHeight);\n        }\n        if (this._config.maxWidth || this._config.maxWidth === 0) {\n            this._pane.style.maxWidth = formatCssUnit(this._config.maxWidth);\n        }\n        if (this._config.maxHeight || this._config.maxHeight === 0) {\n            this._pane.style.maxHeight = formatCssUnit(this._config.maxHeight);\n        }\n    }\n    /**\n     * Toggles the pointer events for the overlay pane element.\n     * @param {?} enablePointer\n     * @return {?}\n     */\n    _togglePointerEvents(enablePointer) {\n        this._pane.style.pointerEvents = enablePointer ? 'auto' : 'none';\n    }\n    /**\n     * Attaches a backdrop for this overlay.\n     * @return {?}\n     */\n    _attachBackdrop() {\n        this._backdropElement = document.createElement('div');\n        this._backdropElement.classList.add('cdk-overlay-backdrop');\n        if (this._config.backdropClass) {\n            this._backdropElement.classList.a
 dd(this._config.backdropClass);\n        } /** @type {?} */\n        ((\n        // Insert the backdrop before the pane in the DOM order,\n        // in order to handle stacked overlays properly.\n        this._pane.parentElement)).insertBefore(this._backdropElement, this._pane);\n        // Forward backdrop clicks such that the consumer of the overlay can perform whatever\n        // action desired when such a click occurs (usually closing the overlay).\n        this._backdropElement.addEventListener('click', () => this._backdropClick.next(null));\n        // Add class to fade-in the backdrop after one frame.\n        requestAnimationFrame(() => {\n            if (this._backdropElement) {\n                this._backdropElement.classList.add('cdk-overlay-backdrop-showing');\n            }\n        });\n    }\n    /**\n     * Updates the stacking order of the element, moving it to the top if necessary.\n     * This is required in cases where one overlay was detached, while another on
 e,\n     * that should be behind it, was destroyed. The next time both of them are opened,\n     * the stacking will be wrong, because the detached element's pane will still be\n     * in its original DOM position.\n     * @return {?}\n     */\n    _updateStackingOrder() {\n        if (this._pane.nextSibling) {\n            ((this._pane.parentNode)).appendChild(this._pane);\n        }\n    }\n    /**\n     * Detaches the backdrop (if any) associated with the overlay.\n     * @return {?}\n     */\n    detachBackdrop() {\n        let /** @type {?} */ backdropToDetach = this._backdropElement;\n        if (backdropToDetach) {\n            let /** @type {?} */ finishDetach = () => {\n                // It may not be attached to anything in certain cases (e.g. unit tests).\n                if (backdropToDetach && backdropToDetach.parentNode) {\n                    backdropToDetach.parentNode.removeChild(backdropToDetach);\n                }\n                // It is possible that a new po
 rtal has been attached to this overlay since we started\n                // removing the backdrop. If that is the case, only clear the backdrop reference if it\n                // is still the same instance that we started to remove.\n                if (this._backdropElement == backdropToDetach) {\n                    this._backdropElement = null;\n                }\n            };\n            backdropToDetach.classList.remove('cdk-overlay-backdrop-showing');\n            if (this._config.backdropClass) {\n                backdropToDetach.classList.remove(this._config.backdropClass);\n            }\n            backdropToDetach.addEventListener('transitionend', finishDetach);\n            // If the backdrop doesn't have a transition, the `transitionend` event won't fire.\n            // In this case we make it unclickable and we try to remove it after a delay.\n            backdropToDetach.style.pointerEvents = 'none';\n            // Run this outside the Angular zone because ther
 e's nothing that Angular cares about.\n            // If it were to run inside the Angular zone, every test that used Overlay would have to be\n            // either async or fakeAsync.\n            this._ngZone.runOutsideAngular(() => {\n                setTimeout(finishDetach, 500);\n            });\n        }\n    }\n}\nfunction OverlayRef_tsickle_Closure_declarations() {\n    /** @type {?} */\n    OverlayRef.prototype._backdropElement;\n    /** @type {?} */\n    OverlayRef.prototype._backdropClick;\n    /** @type {?} */\n    OverlayRef.prototype._attachments;\n    /** @type {?} */\n    OverlayRef.prototype._detachments;\n    /** @type {?} */\n    OverlayRef.prototype._portalHost;\n    /** @type {?} */\n    OverlayRef.prototype._pane;\n    /** @type {?} */\n    OverlayRef.prototype._config;\n    /** @type {?} */\n    OverlayRef.prototype._ngZone;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction formatCssUnit(value) {\n    return typeof value === 'string' ? (value) : `$
 {value}px`;\n}\n//# sourceMappingURL=overlay-ref.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Horizontal dimension of a connection point on the perimeter of the origin or overlay element. */\nimport { Optional } from '@angular/core';\n/**\n * The points of the origin element and the overlay element to connect.\n */\nexport class ConnectionPositionPair {\n    /**\n     * @param {?} origin\n     * @param {?} overlay\n     */\n    constructor(origin, overlay) {\n        this.originX = origin.originX;\n        this.originY = origin.originY;\n        this.overlayX = overlay.overlayX;\n        this.overlayY = overlay.overlayY;\n    }\n}\nfunction ConnectionPositionPair_tsickle_Closure_declarations() {\n    /** @type {?} */\n    ConnectionPositionPair.prototype.originX;\n    /** @type {?} */\n    ConnectionPosition
 Pair.prototype.originY;\n    /** @type {?} */\n    ConnectionPositionPair.prototype.overlayX;\n    /** @type {?} */\n    ConnectionPositionPair.prototype.overlayY;\n}\n/**\n * Set of properties regarding the position of the origin and overlay relative to the viewport\n * with respect to the containing Scrollable elements.\n *\n * The overlay and origin are clipped if any part of their bounding client rectangle exceeds the\n * bounds of any one of the strategy's Scrollable's bounding client rectangle.\n *\n * The overlay and origin are outside view if there is no overlap between their bounding client\n * rectangle and any one of the strategy's Scrollable's bounding client rectangle.\n *\n *       -----------                    -----------\n *       | outside |                    | clipped |\n *       |  view   |              --------------------------\n *       |         |              |     |         |        |\n *       ----------               |     -----------        |\n *  -----
 ---------------------    |                        |\n *  |                        |    |      Scrollable        |\n *  |                        |    |                        |\n *  |                        |     --------------------------\n *  |      Scrollable        |\n *  |                        |\n *  --------------------------\n */\nexport class ScrollingVisibility {\n}\nfunction ScrollingVisibility_tsickle_Closure_declarations() {\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOriginClipped;\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOriginOutsideView;\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOverlayClipped;\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOverlayOutsideView;\n}\n/**\n * The change event emitted by the strategy when a fallback position is used.\n */\nexport class ConnectedOverlayPositionChange {\n    /**\n     * @param {?} connectionPair\n     * @param {?} scrollableViewProperties\n     */\n    construct
 or(connectionPair, scrollableViewProperties) {\n        this.connectionPair = connectionPair;\n        this.scrollableViewProperties = scrollableViewProperties;\n    }\n}\n/**\n * @nocollapse\n */\nConnectedOverlayPositionChange.ctorParameters = () => [\n    { type: ConnectionPositionPair, },\n    { type: ScrollingVisibility, decorators: [{ type: Optional },] },\n];\nfunction ConnectedOverlayPositionChange_tsickle_Closure_declarations() {\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    ConnectedOverlayPositionChange.ctorParameters;\n    /** @type {?} */\n    ConnectedOverlayPositionChange.prototype.connectionPair;\n    /** @type {?} */\n    ConnectedOverlayPositionChange.prototype.scrollableViewProperties;\n}\n//# sourceMappingURL=connected-position.js.map","/**\n * Gets whether an element is scrolled outside of view by any of its parent scrolling containers.\n * \\@docs-private\n * @param {?} element Dimensions of the element (from getBoundingClientRect)\n * @param {?}
  scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @return {?} Whether the element is scrolled out of view\n */\nexport function isElementScrolledOutsideView(element, scrollContainers) {\n    return scrollContainers.some(containerBounds => {\n        const /** @type {?} */ outsideAbove = element.bottom < containerBounds.top;\n        const /** @type {?} */ outsideBelow = element.top > containerBounds.bottom;\n        const /** @type {?} */ outsideLeft = element.right < containerBounds.left;\n        const /** @type {?} */ outsideRight = element.left > containerBounds.right;\n        return outsideAbove || outsideBelow || outsideLeft || outsideRight;\n    });\n}\n/**\n * Gets whether an element is clipped by any of its scrolling containers.\n * \\@docs-private\n * @param {?} element Dimensions of the element (from getBoundingClientRect)\n * @param {?} scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect
 )\n * @return {?} Whether the element is clipped\n */\nexport function isElementClippedByScrolling(element, scrollContainers) {\n    return scrollContainers.some(scrollContainerRect => {\n        const /** @type {?} */ clippedAbove = element.top < scrollContainerRect.top;\n        const /** @type {?} */ clippedBelow = element.bottom > scrollContainerRect.bottom;\n        const /** @type {?} */ clippedLeft = element.left < scrollContainerRect.left;\n        const /** @type {?} */ clippedRight = element.right > scrollContainerRect.right;\n        return clippedAbove || clippedBelow || clippedLeft || clippedRight;\n    });\n}\n//# sourceMappingURL=scroll-clip.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { ConnectionPositionPair, ConnectedOverlayPositionChange, } from './connected-position';\nimport { Subject
  } from 'rxjs/Subject';\nimport { Subscription } from 'rxjs/Subscription';\nimport { isElementScrolledOutsideView, isElementClippedByScrolling } from './scroll-clip';\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * implicit position relative some origin element. The relative position is defined in terms of\n * a point on the origin element that is connected to a point on the overlay element. For example,\n * a basic dropdown is connecting the bottom-left corner of the origin to the top-left corner\n * of the overlay.\n */\nexport class ConnectedPositionStrategy {\n    /**\n     * @param {?} originPos\n     * @param {?} overlayPos\n     * @param {?} _connectedTo\n     * @param {?} _viewportRuler\n     */\n    constructor(originPos, overlayPos, _connectedTo, _viewportRuler) {\n        this._connectedTo = _connectedTo;\n        this._viewportRuler = _viewportRuler;\n        /**\n         * Layout direction of the position strategy.\n       
   */\n        this._dir = 'ltr';\n        /**\n         * The offset in pixels for the overlay connection point on the x-axis\n         */\n        this._offsetX = 0;\n        /**\n         * The offset in pixels for the overlay connection point on the y-axis\n         */\n        this._offsetY = 0;\n        /**\n         * The Scrollable containers used to check scrollable view properties on position change.\n         */\n        this.scrollables = [];\n        /**\n         * Subscription to viewport resize events.\n         */\n        this._resizeSubscription = Subscription.EMPTY;\n        /**\n         * Ordered list of preferred positions, from most to least desirable.\n         */\n        this._preferredPositions = [];\n        this._onPositionChange = new Subject();\n        this._origin = this._connectedTo.nativeElement;\n        this.withFallbackPosition(originPos, overlayPos);\n    }\n    /**\n     * Whether the we're dealing with an RTL context\n     * @return {?}\n    
  */\n    get _isRtl() {\n        return this._dir === 'rtl';\n    }\n    /**\n     * Emits an event when the connection point changes.\n     * @return {?}\n     */\n    get onPositionChange() {\n        return this._onPositionChange.asObservable();\n    }\n    /**\n     * Ordered list of preferred positions, from most to least desirable.\n     * @return {?}\n     */\n    get positions() {\n        return this._preferredPositions;\n    }\n    /**\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        this._overlayRef = overlayRef;\n        this._pane = overlayRef.overlayElement;\n        this._resizeSubscription.unsubscribe();\n        this._resizeSubscription = this._viewportRuler.change().subscribe(() => this.apply());\n    }\n    /**\n     * Performs any cleanup after the element is destroyed.\n     * @return {?}\n     */\n    dispose() {\n        this._resizeSubscription.unsubscribe();\n    }\n    /**\n     * \\@docs-private\n     * @return 
 {?}\n     */\n    detach() {\n        this._resizeSubscription.unsubscribe();\n    }\n    /**\n     * Updates the position of the overlay element, using whichever preferred position relative\n     * to the origin fits on-screen.\n     * \\@docs-private\n     *\n     * @return {?} Resolves when the styles have been applied.\n     */\n    apply() {\n        // We need the bounding rects for the origin and the overlay to determine how to position\n        // the overlay relative to the origin.\n        const /** @type {?} */ element = this._pane;\n        const /** @type {?} */ originRect = this._origin.getBoundingClientRect();\n        const /** @type {?} */ overlayRect = element.getBoundingClientRect();\n        // We use the viewport rect to determine whether a position would go off-screen.\n        const /** @type {?} */ viewportRect = this._viewportRuler.getViewportRect();\n        // Fallback point if none of the fallbacks fit into the viewport.\n        let /** @type {?} */ fall
 backPoint;\n        let /** @type {?} */ fallbackPosition;\n        // We want to place the overlay in the first of the preferred positions such that the\n        // overlay fits on-screen.\n        for (let /** @type {?} */ pos of this._preferredPositions) {\n            // Get the (x, y) point of connection on the origin, and then use that to get the\n            // (top, left) coordinate for the overlay at `pos`.\n            let /** @type {?} */ originPoint = this._getOriginConnectionPoint(originRect, pos);\n            let /** @type {?} */ overlayPoint = this._getOverlayPoint(originPoint, overlayRect, viewportRect, pos);\n            // If the overlay in the calculated position fits on-screen, put it there and we're done.\n            if (overlayPoint.fitsInViewport) {\n                this._setElementPosition(element, overlayRect, overlayPoint, pos);\n                // Save the last connected position in case the position needs to be re-calculated.\n                this._last
 ConnectedPosition = pos;\n                return;\n            }\n            else if (!fallbackPoint || fallbackPoint.visibleArea < overlayPoint.visibleArea) {\n                fallbackPoint = overlayPoint;\n                fallbackPosition = pos;\n            }\n        }\n        // If none of the preferred positions were in the viewport, take the one\n        // with the largest visible area.\n        this._setElementPosition(element, overlayRect, /** @type {?} */ ((fallbackPoint)), /** @type {?} */ ((fallbackPosition)));\n    }\n    /**\n     * This re-aligns the overlay element with the trigger in its last calculated position,\n     * even if a position higher in the \"preferred positions\" list would now fit. This\n     * allows one to re-align the panel without changing the orientation of the panel.\n     * @return {?}\n     */\n    recalculateLastPosition() {\n        const /** @type {?} */ originRect = this._origin.getBoundingClientRect();\n        const /** @type {?} */ o
 verlayRect = this._pane.getBoundingClientRect();\n        const /** @type {?} */ viewportRect = this._viewportRuler.getViewportRect();\n        const /** @type {?} */ lastPosition = this._lastConnectedPosition || this._preferredPositions[0];\n        let /** @type {?} */ originPoint = this._getOriginConnectionPoint(originRect, lastPosition);\n        let /** @type {?} */ overlayPoint = this._getOverlayPoint(originPoint, overlayRect, viewportRect, lastPosition);\n        this._setElementPosition(this._pane, overlayRect, overlayPoint, lastPosition);\n    }\n    /**\n     * Sets the list of Scrollable containers that host the origin element so that\n     * on reposition we can evaluate if it or the overlay has been clipped or outside view. Every\n     * Scrollable must be an ancestor element of the strategy's origin element.\n     * @param {?} scrollables\n     * @return {?}\n     */\n    withScrollableContainers(scrollables) {\n        this.scrollables = scrollables;\n    }\n    /**\n
      * Adds a new preferred fallback position.\n     * @param {?} originPos\n     * @param {?} overlayPos\n     * @return {?}\n     */\n    withFallbackPosition(originPos, overlayPos) {\n        this._preferredPositions.push(new ConnectionPositionPair(originPos, overlayPos));\n        return this;\n    }\n    /**\n     * Sets the layout direction so the overlay's position can be adjusted to match.\n     * @param {?} dir New layout direction.\n     * @return {?}\n     */\n    withDirection(dir) {\n        this._dir = dir;\n        return this;\n    }\n    /**\n     * Sets an offset for the overlay's connection point on the x-axis\n     * @param {?} offset New offset in the X axis.\n     * @return {?}\n     */\n    withOffsetX(offset) {\n        this._offsetX = offset;\n        return this;\n    }\n    /**\n     * Sets an offset for the overlay's connection point on the y-axis\n     * @param {?} offset New offset in the Y axis.\n     * @return {?}\n     */\n    withOffsetY(offset) {\n
         this._offsetY = offset;\n        return this;\n    }\n    /**\n     * Gets the horizontal (x) \"start\" dimension based on whether the overlay is in an RTL context.\n     * @param {?} rect\n     * @return {?}\n     */\n    _getStartX(rect) {\n        return this._isRtl ? rect.right : rect.left;\n    }\n    /**\n     * Gets the horizontal (x) \"end\" dimension based on whether the overlay is in an RTL context.\n     * @param {?} rect\n     * @return {?}\n     */\n    _getEndX(rect) {\n        return this._isRtl ? rect.left : rect.right;\n    }\n    /**\n     * Gets the (x, y) coordinate of a connection point on the origin based on a relative position.\n     * @param {?} originRect\n     * @param {?} pos\n     * @return {?}\n     */\n    _getOriginConnectionPoint(originRect, pos) {\n        const /** @type {?} */ originStartX = this._getStartX(originRect);\n        const /** @type {?} */ originEndX = this._getEndX(originRect);\n        let /** @type {?} */ x;\n        if (pos.
 originX == 'center') {\n            x = originStartX + (originRect.width / 2);\n        }\n        else {\n            x = pos.originX == 'start' ? originStartX : originEndX;\n        }\n        let /** @type {?} */ y;\n        if (pos.originY == 'center') {\n            y = originRect.top + (originRect.height / 2);\n        }\n        else {\n            y = pos.originY == 'top' ? originRect.top : originRect.bottom;\n        }\n        return { x, y };\n    }\n    /**\n     * Gets the (x, y) coordinate of the top-left corner of the overlay given a given position and\n     * origin point to which the overlay should be connected, as well as how much of the element\n     * would be inside the viewport at that position.\n     * @param {?} originPoint\n     * @param {?} overlayRect\n     * @param {?} viewportRect\n     * @param {?} pos\n     * @return {?}\n     */\n    _getOverlayPoint(originPoint, overlayRect, viewportRect, pos) {\n        // Calculate the (overlayStartX, overlayStartY
 ), the start of the potential overlay position\n        // relative to the origin point.\n        let /** @type {?} */ overlayStartX;\n        if (pos.overlayX == 'center') {\n            overlayStartX = -overlayRect.width / 2;\n        }\n        else if (pos.overlayX === 'start') {\n            overlayStartX = this._isRtl ? -overlayRect.width : 0;\n        }\n        else {\n            overlayStartX = this._isRtl ? 0 : -overlayRect.width;\n        }\n        let /** @type {?} */ overlayStartY;\n        if (pos.overlayY == 'center') {\n            overlayStartY = -overlayRect.height / 2;\n        }\n        else {\n            overlayStartY = pos.overlayY == 'top' ? 0 : -overlayRect.height;\n        }\n        // The (x, y) coordinates of the overlay.\n        let /** @type {?} */ x = originPoint.x + overlayStartX + this._offsetX;\n        let /** @type {?} */ y = originPoint.y + overlayStartY + this._offsetY;\n        // How much the overlay would overflow at this position, on ea
 ch side.\n        let /** @type {?} */ leftOverflow = 0 - x;\n        let /** @type {?} */ rightOverflow = (x + overlayRect.width) - viewportRect.width;\n        let /** @type {?} */ topOverflow = 0 - y;\n        let /** @type {?} */ bottomOverflow = (y + overlayRect.height) - viewportRect.height;\n        // Visible parts of the element on each axis.\n        let /** @type {?} */ visibleWidth = this._subtractOverflows(overlayRect.width, leftOverflow, rightOverflow);\n        let /** @type {?} */ visibleHeight = this._subtractOverflows(overlayRect.height, topOverflow, bottomOverflow);\n        // The area of the element that's within the viewport.\n        let /** @type {?} */ visibleArea = visibleWidth * visibleHeight;\n        let /** @type {?} */ fitsInViewport = (overlayRect.width * overlayRect.height) === visibleArea;\n        return { x, y, fitsInViewport, visibleArea };\n    }\n    /**\n     * Gets the view properties of the trigger and overlay, including whether they are cli
 pped\n     * or completely outside the view of any of the strategy's scrollables.\n     * @param {?} overlay\n     * @return {?}\n     */\n    _getScrollVisibility(overlay) {\n        const /** @type {?} */ originBounds = this._origin.getBoundingClientRect();\n        const /** @type {?} */ overlayBounds = overlay.getBoundingClientRect();\n        const /** @type {?} */ scrollContainerBounds = this.scrollables.map(s => s.getElementRef().nativeElement.getBoundingClientRect());\n        return {\n            isOriginClipped: isElementClippedByScrolling(originBounds, scrollContainerBounds),\n            isOriginOutsideView: isElementScrolledOutsideView(originBounds, scrollContainerBounds),\n            isOverlayClipped: isElementClippedByScrolling(overlayBounds, scrollContainerBounds),\n            isOverlayOutsideView: isElementScrolledOutsideView(overlayBounds, scrollContainerBounds),\n        };\n    }\n    /**\n     * Physically positions the overlay element to the given coordinate
 .\n     * @param {?} element\n     * @param {?} overlayRect\n     * @param {?} overlayPoint\n     * @param {?} pos\n     * @return {?}\n     */\n    _setElementPosition(element, overlayRect, overlayPoint, pos) {\n        // We want to set either `top` or `bottom` based on whether the overlay wants to appear above\n        // or below the origin and the direction in which the element will expand.\n        let /** @type {?} */ verticalStyleProperty = pos.overlayY === 'bottom' ? 'bottom' : 'top';\n        // When using `bottom`, we adjust the y position such that it is the distance\n        // from the bottom of the viewport rather than the top.\n        let /** @type {?} */ y = verticalStyleProperty === 'top' ?\n            overlayPoint.y :\n            document.documentElement.clientHeight - (overlayPoint.y + overlayRect.height);\n        // We want to set either `left` or `right` based on whether the overlay wants to appear \"before\"\n        // or \"after\" the origin, which deter
 mines the direction in which the element will expand.\n        // For the horizontal axis, the meaning of \"before\" and \"after\" change based on whether the\n        // page is in RTL or LTR.\n        let /** @type {?} */ horizontalStyleProperty;\n        if (this._dir === 'rtl') {\n            horizontalStyleProperty = pos.overlayX === 'end' ? 'left' : 'right';\n        }\n        else {\n            horizontalStyleProperty = pos.overlayX === 'end' ? 'right' : 'left';\n        }\n        // When we're setting `right`, we adjust the x position such that it is the distance\n        // from the right edge of the viewport rather than the left edge.\n        let /** @type {?} */ x = horizontalStyleProperty === 'left' ?\n            overlayPoint.x :\n            document.documentElement.clientWidth - (overlayPoint.x + overlayRect.width);\n        // Reset any existing styles. This is necessary in case the preferred position has\n        // changed since the last `apply`.\n        ['top
 ', 'bottom', 'left', 'right'].forEach(p => element.style[p] = null);\n        element.style[verticalStyleProperty] = `${y}px`;\n        element.style[horizontalStyleProperty] = `${x}px`;\n        // Notify that the position has been changed along with its change properties.\n        const /** @type {?} */ scrollableViewProperties = this._getScrollVisibility(element);\n        const /** @type {?} */ positionChange = new ConnectedOverlayPositionChange(pos, scrollableViewProperties);\n        this._onPositionChange.next(positionChange);\n    }\n    /**\n     * Subtracts the amount that an element is overflowing on an axis from it's length.\n     * @param {?} length\n     * @param {...?} overflows\n     * @return {?}\n     */\n    _subtractOverflows(length, ...overflows) {\n        return overflows.reduce((currentValue, currentOverflow) => {\n            return currentValue - Math.max(currentOverflow, 0);\n        }, length);\n    }\n}\nfunction ConnectedPositionStrategy_tsickle_Closure
 _declarations() {\n    /**\n     * The overlay to which this strategy is attached.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._overlayRef;\n    /**\n     * Layout direction of the position strategy.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._dir;\n    /**\n     * The offset in pixels for the overlay connection point on the x-axis\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._offsetX;\n    /**\n     * The offset in pixels for the overlay connection point on the y-axis\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._offsetY;\n    /**\n     * The Scrollable containers used to check scrollable view properties on position change.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype.scrollables;\n    /**\n     * Subscription to viewport resize events.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._resizeSubscription;\n    /**\n     * Ordered list of preferred
  positions, from most to least desirable.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._preferredPositions;\n    /**\n     * The origin element against which the overlay will be positioned.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._origin;\n    /**\n     * The overlay pane element.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._pane;\n    /**\n     * The last position to have been calculated as the best fit position.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._lastConnectedPosition;\n    /** @type {?} */\n    ConnectedPositionStrategy.prototype._onPositionChange;\n    /** @type {?} */\n    ConnectedPositionStrategy.prototype._connectedTo;\n    /** @type {?} */\n    ConnectedPositionStrategy.prototype._viewportRuler;\n}\n//# sourceMappingURL=connected-position-strategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by a
 n MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * explicit position relative to the browser's viewport. We use flexbox, instead of\n * transforms, in order to avoid issues with subpixel rendering which can cause the\n * element to become blurry.\n */\nexport class GlobalPositionStrategy {\n    constructor() {\n        this._cssPosition = 'static';\n        this._topOffset = '';\n        this._bottomOffset = '';\n        this._leftOffset = '';\n        this._rightOffset = '';\n        this._alignItems = '';\n        this._justifyContent = '';\n        this._width = '';\n        this._height = '';\n        this._wrapper = null;\n    }\n    /**\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        this._overlayRef = overlayRef;\n    }\n    /**\n     * Sets the top position of the overlay. Clears any previous
 ly set vertical position.\n     * @param {?=} value New top offset.\n     * @return {?}\n     */\n    top(value = '') {\n        this._bottomOffset = '';\n        this._topOffset = value;\n        this._alignItems = 'flex-start';\n        return this;\n    }\n    /**\n     * Sets the left position of the overlay. Clears any previously set horizontal position.\n     * @param {?=} value New left offset.\n     * @return {?}\n     */\n    left(value = '') {\n        this._rightOffset = '';\n        this._leftOffset = value;\n        this._justifyContent = 'flex-start';\n        return this;\n    }\n    /**\n     * Sets the bottom position of the overlay. Clears any previously set vertical position.\n     * @param {?=} value New bottom offset.\n     * @return {?}\n     */\n    bottom(value = '') {\n        this._topOffset = '';\n        this._bottomOffset = value;\n        this._alignItems = 'flex-end';\n        return this;\n    }\n    /**\n     * Sets the right position of the overlay.
  Clears any previously set horizontal position.\n     * @param {?=} value New right offset.\n     * @return {?}\n     */\n    right(value = '') {\n        this._leftOffset = '';\n        this._rightOffset = value;\n        this._justifyContent = 'flex-end';\n        return this;\n    }\n    /**\n     * Sets the overlay width and clears any previously set width.\n     * @param {?=} value New width for the overlay\n     * @return {?}\n     */\n    width(value = '') {\n        this._width = value;\n        // When the width is 100%, we should reset the `left` and the offset,\n        // in order to ensure that the element is flush against the viewport edge.\n        if (value === '100%') {\n            this.left('0px');\n        }\n        return this;\n    }\n    /**\n     * Sets the overlay height and clears any previously set height.\n     * @param {?=} value New height for the overlay\n     * @return {?}\n     */\n    height(value = '') {\n        this._height = value;\n        // 
 When the height is 100%, we should reset the `top` and the offset,\n        // in order to ensure that the element is flush against the viewport edge.\n        if (value === '100%') {\n            this.top('0px');\n        }\n        return this;\n    }\n    /**\n     * Centers the overlay horizontally with an optional offset.\n     * Clears any previously set horizontal position.\n     *\n     * @param {?=} offset Overlay offset from the horizontal center.\n     * @return {?}\n     */\n    centerHorizontally(offset = '') {\n        this.left(offset);\n        this._justifyContent = 'center';\n        return this;\n    }\n    /**\n     * Centers the overlay vertically with an optional offset.\n     * Clears any previously set vertical position.\n     *\n     * @param {?=} offset Overlay offset from the vertical center.\n     * @return {?}\n     */\n    centerVertically(offset = '') {\n        this.top(offset);\n        this._alignItems = 'center';\n        return this;\n    }\n    /
 **\n     * Apply the position to the element.\n     * \\@docs-private\n     *\n     * @return {?} Resolved when the styles have been applied.\n     */\n    apply() {\n        const /** @type {?} */ element = this._overlayRef.overlayElement;\n        if (!this._wrapper && element.parentNode) {\n            this._wrapper = document.createElement('div');\n            this._wrapper.classList.add('cdk-global-overlay-wrapper');\n            element.parentNode.insertBefore(this._wrapper, element);\n            this._wrapper.appendChild(element);\n        }\n        let /** @type {?} */ styles = element.style;\n        let /** @type {?} */ parentStyles = ((element.parentNode)).style;\n        styles.position = this._cssPosition;\n        styles.marginTop = this._topOffset;\n        styles.marginLeft = this._leftOffset;\n        styles.marginBottom = this._bottomOffset;\n        styles.marginRight = this._rightOffset;\n        styles.width = this._width;\n        styles.height = this._height
 ;\n        parentStyles.justifyContent = this._justifyContent;\n        parentStyles.alignItems = this._alignItems;\n    }\n    /**\n     * Removes the wrapper element from the DOM.\n     * @return {?}\n     */\n    dispose() {\n        if (this._wrapper && this._wrapper.parentNode) {\n            this._wrapper.parentNode.removeChild(this._wrapper);\n            this._wrapper = null;\n        }\n    }\n}\nfunction GlobalPositionStrategy_tsickle_Closure_declarations() {\n    /**\n     * The overlay to which this strategy is attached.\n     * @type {?}\n     */\n    GlobalPositionStrategy.prototype._overlayRef;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._cssPosition;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._topOffset;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._bottomOffset;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._leftOffset;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._rightOffset;\n    /** @ty
 pe {?} */\n    GlobalPositionStrategy.prototype._alignItems;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._justifyContent;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._width;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._height;\n    /** @type {?} */\n    GlobalPositionStrategy.prototype._wrapper;\n}\n//# sourceMappingURL=global-position-strategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Injectable } from '@angular/core';\nimport { ViewportRuler } from '@angular/cdk/scrolling';\nimport { ConnectedPositionStrategy } from './connected-position-strategy';\nimport { GlobalPositionStrategy } from './global-position-strategy';\n/**\n * Builder for overlay position strategy.\n */\nexport class OverlayPositionBuilder {\n    /**\n     * @param {?} _viewportRuler\n
      */\n    constructor(_viewportRuler) {\n        this._viewportRuler = _viewportRuler;\n    }\n    /**\n     * Creates a global position strategy.\n     * @return {?}\n     */\n    global() {\n        return new GlobalPositionStrategy();\n    }\n    /**\n     * Creates a relative position strategy.\n     * @param {?} elementRef\n     * @param {?} originPos\n     * @param {?} overlayPos\n     * @return {?}\n     */\n    connectedTo(elementRef, originPos, overlayPos) {\n        return new ConnectedPositionStrategy(originPos, overlayPos, elementRef, this._viewportRuler);\n    }\n}\nOverlayPositionBuilder.decorators = [\n    { type: Injectable },\n];\n/**\n * @nocollapse\n */\nOverlayPositionBuilder.ctorParameters = () => [\n    { type: ViewportRuler, },\n];\nfunction OverlayPositionBuilder_tsickle_Closure_declarations() {\n    /** @type {?} */\n    OverlayPositionBuilder.decorators;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    OverlayPositionBuilder.ctorParameters;\n
     /** @type {?} */\n    OverlayPositionBuilder.prototype._viewportRuler;\n}\n//# sourceMappingURL=overlay-position-builder.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Injectable, Optional, SkipSelf } from '@angular/core';\n/**\n * The OverlayContainer is the container in which all overlays will load.\n * It should be provided in the root component to ensure it is properly shared.\n */\nexport class OverlayContainer {\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._containerElement && this._containerElement.parentNode) {\n            this._containerElement.parentNode.removeChild(this._containerElement);\n        }\n    }\n    /**\n     * This method returns the overlay container element. It will lazily\n     * create the element the first time  it is called to facilitate 
 using\n     * the container in non-browser environments.\n     * @return {?} the container element\n     */\n    getContainerElement() {\n        if (!this._containerElement) {\n            this._createContainer();\n        }\n        return this._containerElement;\n    }\n    /**\n     * Create the overlay container element, which is simply a div\n     * with the 'cdk-overlay-container' class on the document body.\n     * @return {?}\n     */\n    _createContainer() {\n        let /** @type {?} */ container = document.createElement('div');\n        container.classList.add('cdk-overlay-container');\n        document.body.appendChild(container);\n        this._containerElement = container;\n    }\n}\nOverlayContainer.decorators = [\n    { type: Injectable },\n];\n/**\n * @nocollapse\n */\nOverlayContainer.ctorParameters = () => [];\nfunction OverlayContainer_tsickle_Closure_declarations() {\n    /** @type {?} */\n    OverlayContainer.decorators;\n    /**\n     * @nocollapse\n     * @
 type {?}\n     */\n    OverlayContainer.ctorParameters;\n    /** @type {?} */\n    OverlayContainer.prototype._containerElement;\n}\n/**\n * \\@docs-private\n * @param {?} parentContainer\n * @return {?}\n */\nexport function OVERLAY_CONTAINER_PROVIDER_FACTORY(parentContainer) {\n    return parentContainer || new OverlayContainer();\n}\n/**\n * \\@docs-private\n */\nexport const OVERLAY_CONTAINER_PROVIDER = {\n    // If there is already an OverlayContainer available, use that. Otherwise, provide a new one.\n    provide: OverlayContainer,\n    deps: [[new Optional(), new SkipSelf(), OverlayContainer]],\n    useFactory: OVERLAY_CONTAINER_PROVIDER_FACTORY\n};\n//# sourceMappingURL=overlay-container.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Returns an error to be thrown when attempting to attach an alread
 y-attached scroll strategy.\n * @return {?}\n */\nexport function getMatScrollStrategyAlreadyAttachedError() {\n    return Error(`Scroll strategy has already been attached.`);\n}\n//# sourceMappingURL=scroll-strategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { getMatScrollStrategyAlreadyAttachedError } from './scroll-strategy';\n/**\n * Strategy that will close the overlay as soon as the user starts scrolling.\n */\nexport class CloseScrollStrategy {\n    /**\n     * @param {?} _scrollDispatcher\n     */\n    constructor(_scrollDispatcher) {\n        this._scrollDispatcher = _scrollDispatcher;\n        this._scrollSubscription = null;\n    }\n    /**\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        if (this._overlayRef) {\n            throw getMatScrollStrat
 egyAlreadyAttachedError();\n        }\n        this._overlayRef = overlayRef;\n    }\n    /**\n     * @return {?}\n     */\n    enable() {\n        if (!this._scrollSubscription) {\n            this._scrollSubscription = this._scrollDispatcher.scrolled(0, () => {\n                if (this._overlayRef.hasAttached()) {\n                    this._overlayRef.detach();\n                }\n                this.disable();\n            });\n        }\n    }\n    /**\n     * @return {?}\n     */\n    disable() {\n        if (this._scrollSubscription) {\n            this._scrollSubscription.unsubscribe();\n            this._scrollSubscription = null;\n        }\n    }\n}\nfunction CloseScrollStrategy_tsickle_Closure_declarations() {\n    /** @type {?} */\n    CloseScrollStrategy.prototype._scrollSubscription;\n    /** @type {?} */\n    CloseScrollStrategy.prototype._overlayRef;\n    /** @type {?} */\n    CloseScrollStrategy.prototype._scrollDispatcher;\n}\n//# sourceMappingURL=close-scroll-st
 rategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Strategy that will prevent the user from scrolling while the overlay is visible.\n */\nexport class BlockScrollStrategy {\n    /**\n     * @param {?} _viewportRuler\n     */\n    constructor(_viewportRuler) {\n        this._viewportRuler = _viewportRuler;\n        this._previousHTMLStyles = { top: '', left: '' };\n        this._isEnabled = false;\n    }\n    /**\n     * @return {?}\n     */\n    attach() { }\n    /**\n     * @return {?}\n     */\n    enable() {\n        if (this._canBeEnabled()) {\n            const /** @type {?} */ root = document.documentElement;\n            this._previousScrollPosition = this._viewportRuler.getViewportScrollPosition();\n            // Cache the previous inline styles in case the user had set them.\n            this.
 _previousHTMLStyles.left = root.style.left || '';\n            this._previousHTMLStyles.top = root.style.top || '';\n            // Note: we're using the `html` node, instead of the `body`, because the `body` may\n            // have the user agent margin, whereas the `html` is guaranteed not to have one.\n            root.style.left = `${-this._previousScrollPosition.left}px`;\n            root.style.top = `${-this._previousScrollPosition.top}px`;\n            root.classList.add('cdk-global-scrollblock');\n            this._isEnabled = true;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    disable() {\n        if (this._isEnabled) {\n            this._isEnabled = false;\n            document.documentElement.style.left = this._previousHTMLStyles.left;\n            document.documentElement.style.top = this._previousHTMLStyles.top;\n            document.documentElement.classList.remove('cdk-global-scrollblock');\n            window.scroll(this._previousScrollPosition.left,
  this._previousScrollPosition.top);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    _canBeEnabled() {\n        // Since the scroll strategies can't be singletons, we have to use a global CSS class\n        // (`cdk-global-scrollblock`) to make sure that we don't try to disable global\n        // scrolling multiple times.\n        if (document.documentElement.classList.contains('cdk-global-scrollblock') || this._isEnabled) {\n            return false;\n        }\n        const /** @type {?} */ body = document.body;\n        const /** @type {?} */ viewport = this._viewportRuler.getViewportRect();\n        return body.scrollHeight > viewport.height || body.scrollWidth > viewport.width;\n    }\n}\nfunction BlockScrollStrategy_tsickle_Closure_declarations() {\n    /** @type {?} */\n    BlockScrollStrategy.prototype._previousHTMLStyles;\n    /** @type {?} */\n    BlockScrollStrategy.prototype._previousScrollPosition;\n    /** @type {?} */\n    BlockScrollStrategy.prototype._i
 sEnabled;\n    /** @type {?} */\n    BlockScrollStrategy.prototype._viewportRuler;\n}\n//# sourceMappingURL=block-scroll-strategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { getMatScrollStrategyAlreadyAttachedError } from './scroll-strategy';\n/**\n * Strategy that will update the element position as the user is scrolling.\n */\nexport class RepositionScrollStrategy {\n    /**\n     * @param {?} _scrollDispatcher\n     * @param {?=} _config\n     */\n    constructor(_scrollDispatcher, _config) {\n        this._scrollDispatcher = _scrollDispatcher;\n        this._config = _config;\n        this._scrollSubscription = null;\n    }\n    /**\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        if (this._overlayRef) {\n            throw getMatScrollStrategyAlreadyAtta
 chedError();\n        }\n        this._overlayRef = overlayRef;\n    }\n    /**\n     * @return {?}\n     */\n    enable() {\n        if (!this._scrollSubscription) {\n            let /** @type {?} */ throttle = this._config ? this._config.scrollThrottle : 0;\n            this._scrollSubscription = this._scrollDispatcher.scrolled(throttle, () => {\n                this._overlayRef.updatePosition();\n            });\n        }\n    }\n    /**\n     * @return {?}\n     */\n    disable() {\n        if (this._scrollSubscription) {\n            this._scrollSubscription.unsubscribe();\n            this._scrollSubscription = null;\n        }\n    }\n}\nfunction RepositionScrollStrategy_tsickle_Closure_declarations() {\n    /** @type {?} */\n    RepositionScrollStrategy.prototype._scrollSubscription;\n    /** @type {?} */\n    RepositionScrollStrategy.prototype._overlayRef;\n    /** @type {?} */\n    RepositionScrollStrategy.prototype._scrollDispatcher;\n    /** @type {?} */\n    Reposition
 ScrollStrategy.prototype._config;\n}\n//# sourceMappingURL=reposition-scroll-strategy.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Injectable } from '@angular/core';\nimport { CloseScrollStrategy } from './close-scroll-strategy';\nimport { NoopScrollStrategy } from './noop-scroll-strategy';\nimport { BlockScrollStrategy } from './block-scroll-strategy';\nimport { ScrollDispatcher } from '@angular/cdk/scrolling';\nimport { ViewportRuler } from '@angular/cdk/scrolling';\nimport { RepositionScrollStrategy, } from './reposition-scroll-strategy';\n/**\n * Options for how an overlay will handle scrolling.\n *\n * Users can provide a custom value for `ScrollStrategyOptions` to replace the default\n * behaviors. This class primarily acts as a factory for ScrollStrategy instances.\n */\nexport class ScrollStrate
 gyOptions {\n    /**\n     * @param {?} _scrollDispatcher\n     * @param {?} _viewportRuler\n     */\n    constructor(_scrollDispatcher, _viewportRuler) {\n        this._scrollDispatcher = _scrollDispatcher;\n        this._viewportRuler = _viewportRuler;\n        /**\n         * Do nothing on scroll.\n         */\n        this.noop = () => new NoopScrollStrategy();\n        /**\n         * Close the overlay as soon as the user scrolls.\n         */\n        this.close = () => new CloseScrollStrategy(this._scrollDispatcher);\n        /**\n         * Block scrolling.\n         */\n        this.block = () => new BlockScrollStrategy(this._viewportRuler);\n        /**\n         * Update the overlay's position on scroll.\n         * @param config Configuration to be used inside the scroll strategy.\n         * Allows debouncing the reposition calls.\n         */\n        this.reposition = (config) => new RepositionScrollStrategy(this._scrollDispatcher, config);\n    }\n}\nScrollStrategyOp
 tions.decorators = [\n    { type: Injectable },\n];\n/**\n * @nocollapse\n */\nScrollStrategyOptions.ctorParameters = () => [\n    { type: ScrollDispatcher, },\n    { type: ViewportRuler, },\n];\nfunction ScrollStrategyOptions_tsickle_Closure_declarations() {\n    /** @type {?} */\n    ScrollStrategyOptions.decorators;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    ScrollStrategyOptions.ctorParameters;\n    /**\n     * Do nothing on scroll.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.noop;\n    /**\n     * Close the overlay as soon as the user scrolls.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.close;\n    /**\n     * Block scrolling.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.block;\n    /**\n     * Update the overlay's position on scroll.\n     * \\@param config Configuration to be used inside the scroll strategy.\n     * Allows debouncing the reposition calls.\n     * @type {?}\n     */\n    ScrollStrateg
 yOptions.prototype.reposition;\n    /** @type {?} */\n    ScrollStrategyOptions.prototype._scrollDispatcher;\n    /** @type {?} */\n    ScrollStrategyOptions.prototype._viewportRuler;\n}\n//# sourceMappingURL=scroll-strategy-options.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { ComponentFactoryResolver, Injectable, ApplicationRef, Injector, NgZone, } from '@angular/core';\nimport { DomPortalHost } from '@angular/cdk/portal';\nimport { OverlayConfig } from './overlay-config';\nimport { OverlayRef } from './overlay-ref';\nimport { OverlayPositionBuilder } from './position/overlay-position-builder';\nimport { OverlayContainer } from './overlay-container';\nimport { ScrollStrategyOptions } from './scroll/index';\n/**\n * Next overlay unique ID.\n */\nlet nextUniqueId = 0;\n/**\n * The default config for newl
 y created overlays.\n */\nlet defaultConfig = new OverlayConfig();\n/**\n * Service to create Overlays. Overlays are dynamically added pieces of floating UI, meant to be\n * used as a low-level building building block for other components. Dialogs, tooltips, menus,\n * selects, etc. can all be built using overlays. The service should primarily be used by authors\n * of re-usable components rather than developers building end-user applications.\n *\n * An overlay *is* a PortalHost, so any kind of Portal can be loaded into one.\n */\nexport class Overlay {\n    /**\n     * @param {?} scrollStrategies\n     * @param {?} _overlayContainer\n     * @param {?} _componentFactoryResolver\n     * @param {?} _positionBuilder\n     * @param {?} _appRef\n     * @param {?} _injector\n     * @param {?} _ngZone\n     */\n    constructor(scrollStrategies, _overlayContainer, _componentFactoryResolver, _positionBuilder, _appRef, _injector, _ngZone) {\n        this.scrollStrategies = scrollStrategies;\
 n        this._overlayContainer = _overlayContainer;\n        this._componentFactoryResolver = _componentFactoryResolver;\n        this._positionBuilder = _positionBuilder;\n        this._appRef = _appRef;\n        this._injector = _injector;\n        this._ngZone = _ngZone;\n    }\n    /**\n     * Creates an overlay.\n     * @param {?=} config Config to apply to the overlay.\n     * @return {?} Reference to the created overlay.\n     */\n    create(config = defaultConfig) {\n        const /** @type {?} */ pane = this._createPaneElement();\n        const /** @type {?} */ portalHost = this._createPortalHost(pane);\n        return new OverlayRef(portalHost, pane, config, this._ngZone);\n    }\n    /**\n     * Returns a position builder that can be used, via fluent API,\n     * to construct and configure a position strategy.\n     * @return {?}\n     */\n    position() {\n        return this._positionBuilder;\n    }\n    /**\n     * Creates the DOM element for an overlay and appends it
  to the overlay container.\n     * @return {?} Newly-created pane element\n     */\n    _createPaneElement() {\n        let /** @type {?} */ pane = document.createElement('div');\n        pane.id = `cdk-overlay-${nextUniqueId++}`;\n        pane.classList.add('cdk-overlay-pane');\n        this._overlayContainer.getContainerElement().appendChild(pane);\n        return pane;\n    }\n    /**\n     * Create a DomPortalHost into which the overlay content can be loaded.\n     * @param {?} pane The DOM element to turn into a portal host.\n     * @return {?} A portal host for the given DOM element.\n     */\n    _createPortalHost(pane) {\n        return new DomPortalHost(pane, this._componentFactoryResolver, this._appRef, this._injector);\n    }\n}\nOverlay.decorators = [\n    { type: Injectable },\n];\n/**\n * @nocollapse\n */\nOverlay.ctorParameters = () => [\n    { type: ScrollStrategyOptions, },\n    { type: OverlayContainer, },\n    { type: ComponentFactoryResolver, },\n    { type: Over
 layPositionBuilder, },\n    { type: ApplicationRef, },\n    { type: Injector, },\n    { type: NgZone, },\n];\nfunction Overlay_tsickle_Closure_declarations() {\n    /** @type {?} */\n    Overlay.decorators;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    Overlay.ctorParameters;\n    /** @type {?} */\n    Overlay.prototype.scrollStrategies;\n    /** @type {?} */\n    Overlay.prototype._overlayContainer;\n    /** @type {?} */\n    Overlay.prototype._componentFactoryResolver;\n    /** @type {?} */\n    Overlay.prototype._positionBuilder;\n    /** @type {?} */\n    Overlay.prototype._appRef;\n    /** @type {?} */\n    Overlay.prototype._injector;\n    /** @type {?} */\n    Overlay.prototype._ngZone;\n}\n//# sourceMappingURL=overlay.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Injectable } from 
 '@angular/core';\nimport { OverlayContainer } from './overlay-container';\n/**\n * The FullscreenOverlayContainer is the alternative to OverlayContainer\n * that supports correct displaying of overlay elements in Fullscreen mode\n * https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullScreen\n * It should be provided in the root component that way:\n * providers: [\n *   {provide: OverlayContainer, useClass: FullscreenOverlayContainer}\n * ],\n */\nexport class FullscreenOverlayContainer extends OverlayContainer {\n    /**\n     * @return {?}\n     */\n    _createContainer() {\n        super._createContainer();\n        this._adjustParentForFullscreenChange();\n        this._addFullscreenChangeListener(() => this._adjustParentForFullscreenChange());\n    }\n    /**\n     * @return {?}\n     */\n    _adjustParentForFullscreenChange() {\n        if (!this._containerElement) {\n            return;\n        }\n        let /** @type {?} */ fullscreenElement = this.getFulls
 creenElement();\n        let /** @type {?} */ parent = fullscreenElement || document.body;\n        parent.appendChild(this._containerElement);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    _addFullscreenChangeListener(fn) {\n        if (document.fullscreenEnabled) {\n            document.addEventListener('fullscreenchange', fn);\n        }\n        else if (document.webkitFullscreenEnabled) {\n            document.addEventListener('webkitfullscreenchange', fn);\n        }\n        else if (((document)).mozFullScreenEnabled) {\n            document.addEventListener('mozfullscreenchange', fn);\n        }\n        else if (((document)).msFullscreenEnabled) {\n            document.addEventListener('MSFullscreenChange', fn);\n        }\n    }\n    /**\n     * When the page is put into fullscreen mode, a specific element is specified.\n     * Only that element and its children are visible when in fullscreen mode.\n     * @return {?}\n     */\n    getFullscreenEl
 ement() {\n        return document.fullscreenElement ||\n            document.webkitFullscreenElement ||\n            ((document)).mozFullScreenElement ||\n            ((document)).msFullscreenElement ||\n            null;\n    }\n}\nFullscreenOverlayContainer.decorators = [\n    { type: Injectable },\n];\n/**\n * @nocollapse\n */\nFullscreenOverlayContainer.ctorParameters = () => [];\nfunction FullscreenOverlayContainer_tsickle_Closure_declarations() {\n    /** @type {?} */\n    FullscreenOverlayContainer.decorators;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    FullscreenOverlayContainer.ctorParameters;\n}\n//# sourceMappingURL=fullscreen-overlay-container.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Directive, ElementRef, EventEmitter, Inject, InjectionToken, Input, Optional, Output, R
 enderer2, TemplateRef, ViewContainerRef, } from '@angular/core';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { ESCAPE } from '@angular/cdk/keycodes';\nimport { TemplatePortal } from '@angular/cdk/portal';\nimport { Overlay } from './overlay';\nimport { OverlayConfig } from './overlay-config';\nimport { ConnectionPositionPair, } from './position/connected-position';\nimport { Subscription } from 'rxjs/Subscription';\n/**\n * Default set of positions for the overlay. Follows the behavior of a dropdown.\n */\nconst defaultPositionList = [\n    new ConnectionPositionPair({ originX: 'start', originY: 'bottom' }, { overlayX: 'start', overlayY: 'top' }),\n    new ConnectionPositionPair({ originX: 'start', originY: 'top' }, { overlayX: 'start', overlayY: 'bottom' }),\n];\n/**\n * Injection token that determines the scroll handling while the connected overlay is open.\n */\nexport const MAT_CONNECTED_OVERLAY_SCR
 OLL_STRATEGY = new InjectionToken('mat-connected-overlay-scroll-strategy');\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nexport function MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {\n    return () => overlay.scrollStrategies.reposition();\n}\n/**\n * \\@docs-private\n */\nexport const MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER = {\n    provide: MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY,\n    deps: [Overlay],\n    useFactory: MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY,\n};\n/**\n * Directive applied to an element to make it usable as an origin for an Overlay using a\n * ConnectedPositionStrategy.\n */\nexport class OverlayOrigin {\n    /**\n     * @param {?} elementRef\n     */\n    constructor(elementRef) {\n        this.elementRef = elementRef;\n    }\n}\nOverlayOrigin.decorators = [\n    { type: Directive, args: [{\n                selector: '[cdk-overlay-origin], [overlay-origin], [cdkOverlayOrigin]',\n                expo
 rtAs: 'cdkOverlayOrigin',\n            },] },\n];\n/**\n * @nocollapse\n */\nOverlayOrigin.ctorParameters = () => [\n    { type: ElementRef, },\n];\nfunction OverlayOrigin_tsickle_Closure_declarations() {\n    /** @type {?} */\n    OverlayOrigin.decorators;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    OverlayOrigin.ctorParameters;\n    /** @type {?} */\n    OverlayOrigin.prototype.elementRef;\n}\n/**\n * Directive to facilitate declarative creation of an Overlay using a ConnectedPositionStrategy.\n */\nexport class ConnectedOverlayDirective {\n    /**\n     * @param {?} _overlay\n     * @param {?} _renderer\n     * @param {?} templateRef\n     * @param {?} viewContainerRef\n     * @param {?} _scrollStrategy\n     * @param {?} _dir\n     */\n    constructor(_overlay, _renderer, templateRef, viewContainerRef, _scrollStrategy, _dir) {\n        this._overlay = _overlay;\n        this._renderer = _renderer;\n        this._scrollStrategy = _scrollStrategy;\n        this._d
 ir = _dir;\n        this._hasBackdrop = false;\n        this._backdropSubscription = Subscription.EMPTY;\n        this._positionSubscription = Subscription.EMPTY;\n        this._offsetX = 0;\n        this._offsetY = 0;\n        this._escapeListener = () => { };\n        /**\n         * Strategy to be used when handling scroll events while the overlay is open.\n         */\n        this.scrollStrategy = this._scrollStrategy();\n        /**\n         * Whether the overlay is open.\n         */\n        this.open = false;\n        /**\n         * Event emitted when the backdrop is clicked.\n         */\n        this.backdropClick = new EventEmitter();\n        /**\n         * Event emitted when the position has changed.\n         */\n        this.positionChange = new EventEmitter();\n        /**\n         * Event emitted when the overlay has been attached.\n         */\n        this.attach = new EventEmitter();\n        /**\n         * Event emitted when the overlay has been detached.\
 n         */\n        this.detach = new EventEmitter();\n        this._templatePortal = new TemplatePortal(templateRef, viewContainerRef);\n    }\n    /**\n     * The offset in pixels for the overlay connection point on the x-axis\n     * @return {?}\n     */\n    get offsetX() { return this._offsetX; }\n    /**\n     * @param {?} offsetX\n     * @return {?}\n     */\n    set offsetX(offsetX) {\n        this._offsetX = offsetX;\n        if (this._position) {\n            this._position.withOffsetX(offsetX);\n        }\n    }\n    /**\n     * The offset in pixels for the overlay connection point on the y-axis\n     * @return {?}\n     */\n    get offsetY() { return this._offsetY; }\n    /**\n     * @param {?} offsetY\n     * @return {?}\n     */\n    set offsetY(offsetY) {\n        this._offsetY = offsetY;\n        if (this._position) {\n            this._position.withOffsetY(offsetY);\n        }\n    }\n    /**\n     * Whether or not the overlay should attach a backdrop.\n     * @re
 turn {?}\n     */\n    get hasBackdrop() { return this._hasBackdrop; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set hasBackdrop(value) { this._hasBackdrop = coerceBooleanProperty(value); }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedOrigin() { return this.origin; }\n    /**\n     * @param {?} _origin\n     * @return {?}\n     */\n    set _deprecatedOrigin(_origin) { this.origin = _origin; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedPositions() { return this.positions; }\n    /**\n     * @param {?} _positions\n     * @return {?}\n     */\n    set _deprecatedPositions(_positions) { this.positions = _positions; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedOffsetX() { return this.offsetX; }\n    /**\n     * @param {?} _offsetX\n     * @return {?}\n     */\n    set _deprecatedOffsetX(_offsetX) { this.offsetX = _offsetX; }\n    /**\n     * @deprecated\n     *
  @return {?}\n     */\n    get _deprecatedOffsetY() { return this.offsetY; }\n    /**\n     * @param {?} _offsetY\n     * @return {?}\n     */\n    set _deprecatedOffsetY(_offsetY) { this.offsetY = _offsetY; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedWidth() { return this.width; }\n    /**\n     * @param {?} _width\n     * @return {?}\n     */\n    set _deprecatedWidth(_width) { this.width = _width; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedHeight() { return this.height; }\n    /**\n     * @param {?} _height\n     * @return {?}\n     */\n    set _deprecatedHeight(_height) { this.height = _height; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedMinWidth() { return this.minWidth; }\n    /**\n     * @param {?} _minWidth\n     * @return {?}\n     */\n    set _deprecatedMinWidth(_minWidth) { this.minWidth = _minWidth; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    
 get _deprecatedMinHeight() { return this.minHeight; }\n    /**\n     * @param {?} _minHeight\n     * @return {?}\n     */\n    set _deprecatedMinHeight(_minHeight) { this.minHeight = _minHeight; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedBackdropClass() { return this.backdropClass; }\n    /**\n     * @param {?} _backdropClass\n     * @return {?}\n     */\n    set _deprecatedBackdropClass(_backdropClass) { this.backdropClass = _backdropClass; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedScrollStrategy() { return this.scrollStrategy; }\n    /**\n     * @param {?} _scrollStrategy\n     * @return {?}\n     */\n    set _deprecatedScrollStrategy(_scrollStrategy) {\n        this.scrollStrategy = _scrollStrategy;\n    }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedOpen() { return this.open; }\n    /**\n     * @param {?} _open\n     * @return {?}\n     */\n    set _deprecatedOpen(_open) {
  this.open = _open; }\n    /**\n     * @deprecated\n     * @return {?}\n     */\n    get _deprecatedHasBackdrop() { return this.hasBackdrop; }\n    /**\n     * @param {?} _hasBackdrop\n     * @return {?}\n     */\n    set _deprecatedHasBackdrop(_hasBackdrop) { this.hasBackdrop = _hasBackdrop; }\n    /**\n     * The associated overlay reference.\n     * @return {?}\n     */\n    get overlayRef() {\n        return this._overlayRef;\n    }\n    /**\n     * The element's layout direction.\n     * @return {?}\n     */\n    get dir() {\n        return this._dir ? this._dir.value : 'ltr';\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._destroyOverlay();\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if (changes['open'] || changes['_deprecatedOpen']) {\n            this.open ? this._attachOverlay() : this._detachOverlay();\n        }\n    }\n    /**\n     * Creates an overlay\n     * @return {?}\n
      */\n    _createOverlay() {\n        if (!this.positions || !this.positions.length) {\n            this.positions = defaultPositionList;\n        }\n        this._overlayRef = this._overlay.create(this._buildConfig());\n    }\n    /**\n     * Builds the overlay config based on the directive's inputs\n     * @return {?}\n     */\n    _buildConfig() {\n        const /** @type {?} */ positionStrategy = this._position = this._createPositionStrategy();\n        const /** @type {?} */ overlayConfig = new OverlayConfig({\n            positionStrategy,\n            scrollStrategy: this.scrollStrategy,\n            hasBackdrop: this.hasBackdrop\n        });\n        if (this.width || this.width === 0) {\n            overlayConfig.width = this.width;\n        }\n        if (this.height || this.height === 0) {\n            overlayConfig.height = this.height;\n        }\n        if (this.minWidth || this.minWidth === 0) {\n            overlayConfig.minWidth = this.minWidth;\n        }\n    
     if (this.minHeight || this.minHeight === 0) {\n            overlayConfig.minHeight = this.minHeight;\n        }\n        if (this.backdropClass) {\n            overlayConfig.backdropClass = this.backdropClass;\n        }\n        return overlayConfig;\n    }\n    /**\n     * Returns the position strategy of the overlay to be set on the overlay config\n     * @return {?}\n     */\n    _createPositionStrategy() {\n        const /** @type {?} */ pos = this.positions[0];\n        const /** @type {?} */ originPoint = { originX: pos.originX, originY: pos.originY };\n        const /** @type {?} */ overlayPoint = { overlayX: pos.overlayX, overlayY: pos.overlayY };\n        const /** @type {?} */ strategy = this._overlay.position()\n            .connectedTo(this.origin.elementRef, originPoint, overlayPoint)\n            .withOffsetX(this.offsetX)\n            .withOffsetY(this.offsetY);\n        this._handlePositionChanges(strategy);\n        return strategy;\n    }\n    /**\n     * @par
 am {?} strategy\n     * @return {?}\n     */\n    _handlePositionChanges(strategy) {\n        for (let /** @type {?} */ i = 1; i < this.positions.length; i++) {\n            strategy.withFallbackPosition({ originX: this.positions[i].originX, originY: this.positions[i].originY }, { overlayX: this.positions[i].overlayX, overlayY: this.positions[i].overlayY });\n        }\n        this._positionSubscription =\n            strategy.onPositionChange.subscribe(pos => this.positionChange.emit(pos));\n    }\n    /**\n     * Attaches the overlay and subscribes to backdrop clicks if backdrop exists\n     * @return {?}\n     */\n    _attachOverlay() {\n        if (!this._overlayRef) {\n            this._createOverlay();\n        }\n        this._position.withDirection(this.dir);\n        this._overlayRef.getConfig().direction = this.dir;\n        this._initEscapeListener();\n        if (!this._overlayRef.hasAttached()) {\n            this._overlayRef.attach(this._templatePortal);\n            
 this.attach.emit();\n        }\n        if (this.hasBackdrop) {\n            this._backdropSubscription = this._overlayRef.backdropClick().subscribe(() => {\n                this.backdropClick.emit();\n            });\n        }\n    }\n    /**\n     * Detaches the overlay and unsubscribes to backdrop clicks if backdrop exists\n     * @return {?}\n     */\n    _detachOverlay() {\n        if (this._overlayRef) {\n            this._overlayRef.detach();\n            this.detach.emit();\n        }\n        this._backdropSubscription.unsubscribe();\n        this._escapeListener();\n    }\n    /**\n     * Destroys the overlay created by this directive.\n     * @return {?}\n     */\n    _destroyOverlay() {\n        if (this._overlayRef) {\n            this._overlayRef.dispose();\n        }\n        this._backdropSubscription.unsubscribe();\n        this._positionSubscription.unsubscribe();\n        this._escapeListener();\n    }\n    /**\n     * Sets the event listener that closes the over
 lay when pressing Escape.\n     * @return {?}\n     */\n    _initEscapeListener() {\n        this._escapeListener = this._renderer.listen('document', 'keydown', (event) => {\n            if (event.keyCode === ESCAPE) {\n                this._detachOverlay();\n            }\n        });\n    }\n}\nConnectedOverlayDirective.decorators = [\n    { type: Directive, args: [{\n                selector: '[cdk-connected-overlay], [connected-overlay], [cdkConnectedOverlay]',\n                exportAs: 'cdkConnectedOverlay'\n            },] },\n];\n/**\n * @nocollapse\n */\nConnectedOverlayDirective.ctorParameters = () => [\n    { type: Overlay, },\n    { type: Renderer2, },\n    { type: TemplateRef, },\n    { type: ViewContainerRef, },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY,] },] },\n    { type: Directionality, decorators: [{ type: Optional },] },\n];\nConnectedOverlayDirective.propDecorators = {\n    'origin': [{ type: Input, args: [
 'cdkConnectedOverlayOrigin',] },],\n    'positions': [{ type: Input, args: ['cdkConnectedOverlayPositions',] },],\n    'offsetX': [{ type: Input, args: ['cdkConnectedOverlayOffsetX',] },],\n    'offsetY': [{ type: Input, args: ['cdkConnectedOverlayOffsetY',] },],\n    'width': [{ type: Input, args: ['cdkConnectedOverlayWidth',] },],\n    'height': [{ type: Input, args: ['cdkConnectedOverlayHeight',] },],\n    'minWidth': [{ type: Input, args: ['cdkConnectedOverlayMinWidth',] },],\n    'minHeight': [{ type: Input, args: ['cdkConnectedOverlayMinHeight',] },],\n    'backdropClass': [{ type: Input, args: ['cdkConnectedOverlayBackdropClass',] },],\n    'scrollStrategy': [{ type: Input, args: ['cdkConnectedOverlayScrollStrategy',] },],\n    'open': [{ type: Input, args: ['cdkConnectedOverlayOpen',] },],\n    'hasBackdrop': [{ type: Input, args: ['cdkConnectedOverlayHasBackdrop',] },],\n    '_deprecatedOrigin': [{ type: Input, args: ['origin',] },],\n    '_deprecatedPositions': [{ type: In
 put, args: ['positions',] },],\n    '_deprecatedOffsetX': [{ type: Input, args: ['offsetX',] },],\n    '_deprecatedOffsetY': [{ type: Input, args: ['offsetY',] },],\n    '_deprecatedWidth': [{ type: Input, args: ['width',] },],\n    '_deprecatedHeight': [{ type: Input, args: ['height',] },],\n    '_deprecatedMinWidth': [{ type: Input, args: ['minWidth',] },],\n    '_deprecatedMinHeight': [{ type: Input, args: ['minHeight',] },],\n    '_deprecatedBackdropClass': [{ type: Input, args: ['backdropClass',] },],\n    '_deprecatedScrollStrategy': [{ type: Input, args: ['scrollStrategy',] },],\n    '_deprecatedOpen': [{ type: Input, args: ['open',] },],\n    '_deprecatedHasBackdrop': [{ type: Input, args: ['hasBackdrop',] },],\n    'backdropClick': [{ type: Output },],\n    'positionChange': [{ type: Output },],\n    'attach': [{ type: Output },],\n    'detach': [{ type: Output },],\n};\nfunction ConnectedOverlayDirective_tsickle_Closure_declarations() {\n    /** @type {?} */\n    Connected
 OverlayDirective.decorators;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    ConnectedOverlayDirective.ctorParameters;\n    /** @type {?} */\n    ConnectedOverlayDirective.propDecorators;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._overlayRef;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._templatePortal;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._hasBackdrop;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._backdropSubscription;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._positionSubscription;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._offsetX;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._offsetY;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._position;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._escapeListener;\n    /**\n     * Origin for the connected overlay.\n     * @type {?}\n     */\n    Connecte
 dOverlayDirective.prototype.origin;\n    /**\n     * Registered connected position pairs.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.positions;\n    /**\n     * The width of the overlay panel.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.width;\n    /**\n     * The height of the overlay panel.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.height;\n    /**\n     * The min width of the overlay panel.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.minWidth;\n    /**\n     * The min height of the overlay panel.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.minHeight;\n    /**\n     * The custom class to be set on the backdrop element.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.backdropClass;\n    /**\n     * Strategy to be used when handling scroll events while the overlay is open.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.sc
 rollStrategy;\n    /**\n     * Whether the overlay is open.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.open;\n    /**\n     * Event emitted when the backdrop is clicked.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.backdropClick;\n    /**\n     * Event emitted when the position has changed.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.positionChange;\n    /**\n     * Event emitted when the overlay has been attached.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.attach;\n    /**\n     * Event emitted when the overlay has been detached.\n     * @type {?}\n     */\n    ConnectedOverlayDirective.prototype.detach;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._overlay;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._renderer;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototype._scrollStrategy;\n    /** @type {?} */\n    ConnectedOverlayDirective.prototy
 pe._dir;\n}\n//# sourceMappingURL=overlay-directives.js.map","/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { NgModule } from '@angular/core';\nimport { PortalModule } from '@angular/cdk/portal';\nimport { Overlay } from './overlay';\nimport { ScrollDispatchModule, VIEWPORT_RULER_PROVIDER } from '@angular/cdk/scrolling';\nimport { ConnectedOverlayDirective, MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER, OverlayOrigin, } from './overlay-directives';\nimport { OverlayPositionBuilder } from './position/overlay-position-builder';\nimport { OVERLAY_CONTAINER_PROVIDER } from './overlay-container';\nimport { ScrollStrategyOptions } from './scroll/scroll-strategy-options';\nexport const /** @type {?} */ OVERLAY_PROVIDERS = [\n    Overlay,\n    OverlayPositionBuilder,\n    VIEWPORT_RULER_PROVIDER,\n    OVERLAY_CONTAINER_PR
 OVIDER,\n    MAT_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER,\n];\nexport class OverlayModule {\n}\nOverlayModule.decorators = [\n    { type: NgModule, args: [{\n                imports: [PortalModule, ScrollDispatchModule],\n                exports: [ConnectedOverlayDirective, OverlayOrigin, ScrollDispatchModule],\n               

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