text: import { Platform, PlatformModule } from '@angular/cdk/platform';
  import { ScrollDispatcher, CdkScrollable, ViewportRuler, CdkScrollableModule } from '@angular/cdk/scrolling';
  import { DOCUMENT, CommonModule } from '@angular/common';
  import { InjectionToken, Component, ChangeDetectionStrategy, ViewEncapsulation, ChangeDetectorRef, Inject, forwardRef, ElementRef, NgZone, EventEmitter, Optional, Input, HostBinding, Output, HostListener, QueryList, ContentChildren, ContentChild, ViewChild, NgModule } from '@angular/core';
  import { MatCommonModule } from '@angular/material/core';
  import { __extends } from 'tslib';
  import { FocusTrapFactory, FocusMonitor } from '@angular/cdk/a11y';
  import { Directionality } from '@angular/cdk/bidi';
  import { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';
  import { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';
  import { Subject, fromEvent, merge } from 'rxjs';
  import { filter, takeUntil, distinctUntilChanged, map, take, startWith, debounceTime } from 'rxjs/operators';
  import { trigger, state, style, transition, animate } from '@angular/animations';
  import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';
  
  /**
   * @license
   * Copyright Google LLC 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
   */
  /**
   * Animations used by the Material drawers.
   * @docs-private
   */
  var matDrawerAnimations = {
      /** Animation that slides a drawer in and out. */
      transformDrawer: trigger('transform', [
          // We remove the `transform` here completely, rather than setting it to zero, because:
          // 1. Having a transform can cause elements with ripples or an animated
          //    transform to shift around in Chrome with an RTL layout (see #10023).
          // 2. 3d transforms causes text to appear blurry on IE and Edge.
          state('open, open-instant', style({
              'transform': 'none',
              'visibility': 'visible',
          })),
          state('void', style({
              // Avoids the shadow showing up when closed in SSR.
              'box-shadow': 'none',
              'visibility': 'hidden',
          })),
          transition('void => open-instant', animate('0ms')),
          transition('void <=> open, open-instant => void', animate('400ms cubic-bezier(0.25, 0.8, 0.25, 1)'))
      ])
  };
  
  /**
   * Throws an exception when two MatDrawer are matching the same position.
   * @docs-private
   */
  function throwMatDuplicatedDrawerError(position) {
      throw Error("A drawer was already declared for 'position=\"" + position + "\"'");
  }
  /** Configures whether drawers should use auto sizing by default. */
  var MAT_DRAWER_DEFAULT_AUTOSIZE = new InjectionToken('MAT_DRAWER_DEFAULT_AUTOSIZE', {
      providedIn: 'root',
      factory: MAT_DRAWER_DEFAULT_AUTOSIZE_FACTORY,
  });
  /**
   * Used to provide a drawer container to a drawer while avoiding circular references.
   * @docs-private
   */
  var MAT_DRAWER_CONTAINER = new InjectionToken('MAT_DRAWER_CONTAINER');
  /** @docs-private */
  function MAT_DRAWER_DEFAULT_AUTOSIZE_FACTORY() {
      return false;
  }
  var MatDrawerContent = /** @class */ (function (_super) {
      __extends(MatDrawerContent, _super);
      function MatDrawerContent(_changeDetectorRef, _container, elementRef, scrollDispatcher, ngZone) {
          var _this = _super.call(this, elementRef, scrollDispatcher, ngZone) || this;
          _this._changeDetectorRef = _changeDetectorRef;
          _this._container = _container;
          return _this;
      }
      MatDrawerContent.prototype.ngAfterContentInit = function () {
          var _this = this;
          this._container._contentMarginChanges.subscribe(function () {
              _this._changeDetectorRef.markForCheck();
          });
      };
      MatDrawerContent.decorators = [
          { type: Component, args: [{
                      selector: 'mat-drawer-content',
                      template: '<ng-content></ng-content>',
                      host: {
                          'class': 'mat-drawer-content',
                          '[style.margin-left.px]': '_container._contentMargins.left',
                          '[style.margin-right.px]': '_container._contentMargins.right',
                      },
                      changeDetection: ChangeDetectionStrategy.OnPush,
                      encapsulation: ViewEncapsulation.None
                  }] }
      ];
      /** @nocollapse */
      MatDrawerContent.ctorParameters = function () { return [
          { type: ChangeDetectorRef },
          { type: MatDrawerContainer, decorators: [{ type: Inject, args: [forwardRef(function () { return MatDrawerContainer; }),] }] },
          { type: ElementRef },
          { type: ScrollDispatcher },
          { type: NgZone }
      ]; };
      return MatDrawerContent;
  }(CdkScrollable));
  /**
   * This component corresponds to a drawer that can be opened on the drawer container.
   */
  var MatDrawer = /** @class */ (function () {
      function MatDrawer(_elementRef, _focusTrapFactory, _focusMonitor, _platform, _ngZone, _doc, 
      /**
       * @deprecated `_container` parameter to be made required.
       * @breaking-change 10.0.0
       */
      _container) {
          var _this = this;
          this._elementRef = _elementRef;
          this._focusTrapFactory = _focusTrapFactory;
          this._focusMonitor = _focusMonitor;
          this._platform = _platform;
          this._ngZone = _ngZone;
          this._doc = _doc;
          this._container = _container;
          this._elementFocusedBeforeDrawerWasOpened = null;
          /** Whether the drawer is initialized. Used for disabling the initial animation. */
          this._enableAnimations = false;
          this._position = 'start';
          this._mode = 'over';
          this._disableClose = false;
          this._opened = false;
          /** Emits whenever the drawer has started animating. */
          this._animationStarted = new Subject();
          /** Emits whenever the drawer is done animating. */
          this._animationEnd = new Subject();
          /** Current state of the sidenav animation. */
          // @HostBinding is used in the class as it is expected to be extended.  Since @Component decorator
          // metadata is not inherited by child classes, instead the host binding data is defined in a way
          // that can be inherited.
          // tslint:disable:no-host-decorator-in-concrete
          this._animationState = 'void';
          /** Event emitted when the drawer open state is changed. */
          this.openedChange = 
          // Note this has to be async in order to avoid some issues with two-bindings (see #8872).
          new EventEmitter(/* isAsync */ true);
          /** Emits when the component is destroyed. */
          this._destroyed = new Subject();
          /** Event emitted when the drawer's position changes. */
          // tslint:disable-next-line:no-output-on-prefix
          this.onPositionChanged = new EventEmitter();
          /**
           * An observable that emits when the drawer mode changes. This is used by the drawer container to
           * to know when to when the mode changes so it can adapt the margins on the content.
           */
          this._modeChanged = new Subject();
          this.openedChange.subscribe(function (opened) {
              if (opened) {
                  if (_this._doc) {
                      _this._elementFocusedBeforeDrawerWasOpened = _this._doc.activeElement;
                  }
                  _this._takeFocus();
              }
              else {
                  _this._restoreFocus();
              }
          });
          /**
           * Listen to `keydown` events outside the zone so that change detection is not run every
           * time a key is pressed. Instead we re-enter the zone only if the `ESC` key is pressed
           * and we don't have close disabled.
           */
          this._ngZone.runOutsideAngular(function () {
              fromEvent(_this._elementRef.nativeElement, 'keydown').pipe(filter(function (event) {
                  return event.keyCode === ESCAPE && !_this.disableClose && !hasModifierKey(event);
              }), takeUntil(_this._destroyed)).subscribe(function (event) { return _this._ngZone.run(function () {
                  _this.close();
                  event.stopPropagation();
                  event.preventDefault();
              }); });
          });
          // We need a Subject with distinctUntilChanged, because the `done` event
          // fires twice on some browsers. See https://github.com/angular/angular/issues/24084
          this._animationEnd.pipe(distinctUntilChanged(function (x, y) {
              return x.fromState === y.fromState && x.toState === y.toState;
          })).subscribe(function (event) {
              var fromState = event.fromState, toState = event.toState;
              if ((toState.indexOf('open') === 0 && fromState === 'void') ||
                  (toState === 'void' && fromState.indexOf('open') === 0)) {
                  _this.openedChange.emit(_this._opened);
              }
          });
      }
      Object.defineProperty(MatDrawer.prototype, "position", {
          /** The side that the drawer is attached to. */
          get: function () { return this._position; },
          set: function (value) {
              // Make sure we have a valid value.
              value = value === 'end' ? 'end' : 'start';
              if (value != this._position) {
                  this._position = value;
                  this.onPositionChanged.emit();
              }
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "mode", {
          /** Mode of the drawer; one of 'over', 'push' or 'side'. */
          get: function () { return this._mode; },
          set: function (value) {
              this._mode = value;
              this._updateFocusTrapState();
              this._modeChanged.next();
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "disableClose", {
          /** Whether the drawer can be closed with the escape key or by clicking on the backdrop. */
          get: function () { return this._disableClose; },
          set: function (value) { this._disableClose = coerceBooleanProperty(value); },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "autoFocus", {
          /**
           * Whether the drawer should focus the first focusable element automatically when opened.
           * Defaults to false in when `mode` is set to `side`, otherwise defaults to `true`. If explicitly
           * enabled, focus will be moved into the sidenav in `side` mode as well.
           */
          get: function () {
              var value = this._autoFocus;
              // Note that usually we disable auto focusing in `side` mode, because we don't know how the
              // sidenav is being used, but in some cases it still makes sense to do it. If the consumer
              // explicitly enabled `autoFocus`, we take it as them always wanting to enable it.
              return value == null ? this.mode !== 'side' : value;
          },
          set: function (value) { this._autoFocus = coerceBooleanProperty(value); },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "opened", {
          /**
           * Whether the drawer is opened. We overload this because we trigger an event when it
           * starts or end.
           */
          get: function () { return this._opened; },
          set: function (value) { this.toggle(coerceBooleanProperty(value)); },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "_openedStream", {
          /** Event emitted when the drawer has been opened. */
          get: function () {
              return this.openedChange.pipe(filter(function (o) { return o; }), map(function () { }));
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "openedStart", {
          /** Event emitted when the drawer has started opening. */
          get: function () {
              return this._animationStarted.pipe(filter(function (e) { return e.fromState !== e.toState && e.toState.indexOf('open') === 0; }), map(function () { }));
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "_closedStream", {
          /** Event emitted when the drawer has been closed. */
          get: function () {
              return this.openedChange.pipe(filter(function (o) { return !o; }), map(function () { }));
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawer.prototype, "closedStart", {
          /** Event emitted when the drawer has started closing. */
          get: function () {
              return this._animationStarted.pipe(filter(function (e) { return e.fromState !== e.toState && e.toState === 'void'; }), map(function () { }));
          },
          enumerable: true,
          configurable: true
      });
      /**
       * Moves focus into the drawer. Note that this works even if
       * the focus trap is disabled in `side` mode.
       */
      MatDrawer.prototype._takeFocus = function () {
          var _this = this;
          if (!this.autoFocus || !this._focusTrap) {
              return;
          }
          this._focusTrap.focusInitialElementWhenReady().then(function (hasMovedFocus) {
              // If there were no focusable elements, focus the sidenav itself so the keyboard navigation
              // still works. We need to check that `focus` is a function due to Universal.
              if (!hasMovedFocus && typeof _this._elementRef.nativeElement.focus === 'function') {
                  _this._elementRef.nativeElement.focus();
              }
          });
      };
      /**
       * If focus is currently inside the drawer, restores it to where it was before the drawer
       * opened.
       */
      MatDrawer.prototype._restoreFocus = function () {
          if (!this.autoFocus) {
              return;
          }
          var activeEl = this._doc && this._doc.activeElement;
          if (activeEl && this._elementRef.nativeElement.contains(activeEl)) {
              // Note that we don't check via `instanceof HTMLElement` so that we can cover SVGs as well.
              if (this._elementFocusedBeforeDrawerWasOpened) {
                  this._focusMonitor.focusVia(this._elementFocusedBeforeDrawerWasOpened, this._openedVia);
              }
              else {
                  this._elementRef.nativeElement.blur();
              }
          }
          this._elementFocusedBeforeDrawerWasOpened = null;
          this._openedVia = null;
      };
      MatDrawer.prototype.ngAfterContentInit = function () {
          this._focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement);
          this._updateFocusTrapState();
      };
      MatDrawer.prototype.ngAfterContentChecked = function () {
          // Enable the animations after the lifecycle hooks have run, in order to avoid animating
          // drawers that are open by default. When we're on the server, we shouldn't enable the
          // animations, because we don't want the drawer to animate the first time the user sees
          // the page.
          if (this._platform.isBrowser) {
              this._enableAnimations = true;
          }
      };
      MatDrawer.prototype.ngOnDestroy = function () {
          if (this._focusTrap) {
              this._focusTrap.destroy();
          }
          this._animationStarted.complete();
          this._animationEnd.complete();
          this._modeChanged.complete();
          this._destroyed.next();
          this._destroyed.complete();
      };
      /**
       * Open the drawer.
       * @param openedVia Whether the drawer was opened by a key press, mouse click or programmatically.
       * Used for focus management after the sidenav is closed.
       */
      MatDrawer.prototype.open = function (openedVia) {
          return this.toggle(true, openedVia);
      };
      /** Close the drawer. */
      MatDrawer.prototype.close = function () {
          return this.toggle(false);
      };
      /**
       * Toggle this drawer.
       * @param isOpen Whether the drawer should be open.
       * @param openedVia Whether the drawer was opened by a key press, mouse click or programmatically.
       * Used for focus management after the sidenav is closed.
       */
      MatDrawer.prototype.toggle = function (isOpen, openedVia) {
          var _this = this;
          if (isOpen === void 0) { isOpen = !this.opened; }
          if (openedVia === void 0) { openedVia = 'program'; }
          this._opened = isOpen;
          if (isOpen) {
              this._animationState = this._enableAnimations ? 'open' : 'open-instant';
              this._openedVia = openedVia;
          }
          else {
              this._animationState = 'void';
              this._restoreFocus();
          }
          this._updateFocusTrapState();
          return new Promise(function (resolve) {
              _this.openedChange.pipe(take(1)).subscribe(function (open) { return resolve(open ? 'open' : 'close'); });
          });
      };
      Object.defineProperty(MatDrawer.prototype, "_width", {
          get: function () {
              return this._elementRef.nativeElement ? (this._elementRef.nativeElement.offsetWidth || 0) : 0;
          },
          enumerable: true,
          configurable: true
      });
      /** Updates the enabled state of the focus trap. */
      MatDrawer.prototype._updateFocusTrapState = function () {
          if (this._focusTrap) {
              // The focus trap is only enabled when the drawer is open in any mode other than side.
              this._focusTrap.enabled = this.opened && this.mode !== 'side';
          }
      };
      // We have to use a `HostListener` here in order to support both Ivy and ViewEngine.
      // In Ivy the `host` bindings will be merged when this class is extended, whereas in
      // ViewEngine they're overwritten.
      // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.
      // tslint:disable-next-line:no-host-decorator-in-concrete
      MatDrawer.prototype._animationStartListener = function (event) {
          this._animationStarted.next(event);
      };
      // We have to use a `HostListener` here in order to support both Ivy and ViewEngine.
      // In Ivy the `host` bindings will be merged when this class is extended, whereas in
      // ViewEngine they're overwritten.
      // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.
      // tslint:disable-next-line:no-host-decorator-in-concrete
      MatDrawer.prototype._animationDoneListener = function (event) {
          this._animationEnd.next(event);
      };
      MatDrawer.decorators = [
          { type: Component, args: [{
                      selector: 'mat-drawer',
                      exportAs: 'matDrawer',
                      template: "<div class=\"mat-drawer-inner-container\">\r\n  <ng-content></ng-content>\r\n</div>\r\n",
                      animations: [matDrawerAnimations.transformDrawer],
                      host: {
                          'class': 'mat-drawer',
                          // must prevent the browser from aligning text based on value
                          '[attr.align]': 'null',
                          '[class.mat-drawer-end]': 'position === "end"',
                          '[class.mat-drawer-over]': 'mode === "over"',
                          '[class.mat-drawer-push]': 'mode === "push"',
                          '[class.mat-drawer-side]': 'mode === "side"',
                          '[class.mat-drawer-opened]': 'opened',
                          'tabIndex': '-1',
                      },
                      changeDetection: ChangeDetectionStrategy.OnPush,
                      encapsulation: ViewEncapsulation.None
                  }] }
      ];
      /** @nocollapse */
      MatDrawer.ctorParameters = function () { return [
          { type: ElementRef },
          { type: FocusTrapFactory },
          { type: FocusMonitor },
          { type: Platform },
          { type: NgZone },
          { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },
          { type: MatDrawerContainer, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DRAWER_CONTAINER,] }] }
      ]; };
      MatDrawer.propDecorators = {
          position: [{ type: Input }],
          mode: [{ type: Input }],
          disableClose: [{ type: Input }],
          autoFocus: [{ type: Input }],
          opened: [{ type: Input }],
          _animationState: [{ type: HostBinding, args: ['@transform',] }],
          openedChange: [{ type: Output }],
          _openedStream: [{ type: Output, args: ['opened',] }],
          openedStart: [{ type: Output }],
          _closedStream: [{ type: Output, args: ['closed',] }],
          closedStart: [{ type: Output }],
          onPositionChanged: [{ type: Output, args: ['positionChanged',] }],
          _animationStartListener: [{ type: HostListener, args: ['@transform.start', ['$event'],] }],
          _animationDoneListener: [{ type: HostListener, args: ['@transform.done', ['$event'],] }]
      };
      return MatDrawer;
  }());
  /**
   * `<mat-drawer-container>` component.
   *
   * This is the parent component to one or two `<mat-drawer>`s that validates the state internally
   * and coordinates the backdrop and content styling.
   */
  var MatDrawerContainer = /** @class */ (function () {
      function MatDrawerContainer(_dir, _element, _ngZone, _changeDetectorRef, viewportRuler, defaultAutosize, _animationMode) {
          var _this = this;
          if (defaultAutosize === void 0) { defaultAutosize = false; }
          this._dir = _dir;
          this._element = _element;
          this._ngZone = _ngZone;
          this._changeDetectorRef = _changeDetectorRef;
          this._animationMode = _animationMode;
          /** Drawers that belong to this container. */
          this._drawers = new QueryList();
          /** Event emitted when the drawer backdrop is clicked. */
          this.backdropClick = new EventEmitter();
          /** Emits when the component is destroyed. */
          this._destroyed = new Subject();
          /** Emits on every ngDoCheck. Used for debouncing reflows. */
          this._doCheckSubject = new Subject();
          /**
           * Margins to be applied to the content. These are used to push / shrink the drawer content when a
           * drawer is open. We use margin rather than transform even for push mode because transform breaks
           * fixed position elements inside of the transformed element.
           */
          this._contentMargins = { left: null, right: null };
          this._contentMarginChanges = new Subject();
          // If a `Dir` directive exists up the tree, listen direction changes
          // and update the left/right properties to point to the proper start/end.
          if (_dir) {
              _dir.change.pipe(takeUntil(this._destroyed)).subscribe(function () {
                  _this._validateDrawers();
                  _this.updateContentMargins();
              });
          }
          // Since the minimum width of the sidenav depends on the viewport width,
          // we need to recompute the margins if the viewport changes.
          viewportRuler.change()
              .pipe(takeUntil(this._destroyed))
              .subscribe(function () { return _this.updateContentMargins(); });
          this._autosize = defaultAutosize;
      }
      Object.defineProperty(MatDrawerContainer.prototype, "start", {
          /** The drawer child with the `start` position. */
          get: function () { return this._start; },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawerContainer.prototype, "end", {
          /** The drawer child with the `end` position. */
          get: function () { return this._end; },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawerContainer.prototype, "autosize", {
          /**
           * Whether to automatically resize the container whenever
           * the size of any of its drawers changes.
           *
           * **Use at your own risk!** Enabling this option can cause layout thrashing by measuring
           * the drawers on every change detection cycle. Can be configured globally via the
           * `MAT_DRAWER_DEFAULT_AUTOSIZE` token.
           */
          get: function () { return this._autosize; },
          set: function (value) { this._autosize = coerceBooleanProperty(value); },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawerContainer.prototype, "hasBackdrop", {
          /**
           * Whether the drawer container should have a backdrop while one of the sidenavs is open.
           * If explicitly set to `true`, the backdrop will be enabled for drawers in the `side`
           * mode as well.
           */
          get: function () {
              if (this._backdropOverride == null) {
                  return !this._start || this._start.mode !== 'side' || !this._end || this._end.mode !== 'side';
              }
              return this._backdropOverride;
          },
          set: function (value) {
              this._backdropOverride = value == null ? null : coerceBooleanProperty(value);
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatDrawerContainer.prototype, "scrollable", {
          /** Reference to the CdkScrollable instance that wraps the scrollable content. */
          get: function () {
              return this._userContent || this._content;
          },
          enumerable: true,
          configurable: true
      });
      MatDrawerContainer.prototype.ngAfterContentInit = function () {
          var _this = this;
          this._allDrawers.changes
              .pipe(startWith(this._allDrawers), takeUntil(this._destroyed))
              .subscribe(function (drawer) {
              // @breaking-change 10.0.0 Remove `_container` check once container parameter is required.
              _this._drawers.reset(drawer.filter(function (item) { return !item._container || item._container === _this; }));
              _this._drawers.notifyOnChanges();
          });
          this._drawers.changes.pipe(startWith(null)).subscribe(function () {
              _this._validateDrawers();
              _this._drawers.forEach(function (drawer) {
                  _this._watchDrawerToggle(drawer);
                  _this._watchDrawerPosition(drawer);
                  _this._watchDrawerMode(drawer);
              });
              if (!_this._drawers.length ||
                  _this._isDrawerOpen(_this._start) ||
                  _this._isDrawerOpen(_this._end)) {
                  _this.updateContentMargins();
              }
              _this._changeDetectorRef.markForCheck();
          });
          this._doCheckSubject.pipe(debounceTime(10), // Arbitrary debounce time, less than a frame at 60fps
          takeUntil(this._destroyed)).subscribe(function () { return _this.updateContentMargins(); });
      };
      MatDrawerContainer.prototype.ngOnDestroy = function () {
          this._contentMarginChanges.complete();
          this._doCheckSubject.complete();
          this._drawers.destroy();
          this._destroyed.next();
          this._destroyed.complete();
      };
      /** Calls `open` of both start and end drawers */
      MatDrawerContainer.prototype.open = function () {
          this._drawers.forEach(function (drawer) { return drawer.open(); });
      };
      /** Calls `close` of both start and end drawers */
      MatDrawerContainer.prototype.close = function () {
          this._drawers.forEach(function (drawer) { return drawer.close(); });
      };
      /**
       * Recalculates and updates the inline styles for the content. Note that this should be used
       * sparingly, because it causes a reflow.
       */
      MatDrawerContainer.prototype.updateContentMargins = function () {
          var _this = this;
          // 1. For drawers in `over` mode, they don't affect the content.
          // 2. For drawers in `side` mode they should shrink the content. We do this by adding to the
          //    left margin (for left drawer) or right margin (for right the drawer).
          // 3. For drawers in `push` mode the should shift the content without resizing it. We do this by
          //    adding to the left or right margin and simultaneously subtracting the same amount of
          //    margin from the other side.
          var left = 0;
          var right = 0;
          if (this._left && this._left.opened) {
              if (this._left.mode == 'side') {
                  left += this._left._width;
              }
              else if (this._left.mode == 'push') {
                  var width = this._left._width;
                  left += width;
                  right -= width;
              }
          }
          if (this._right && this._right.opened) {
              if (this._right.mode == 'side') {
                  right += this._right._width;
              }
              else if (this._right.mode == 'push') {
                  var width = this._right._width;
                  right += width;
                  left -= width;
              }
          }
          // If either `right` or `left` is zero, don't set a style to the element. This
          // allows users to specify a custom size via CSS class in SSR scenarios where the
          // measured widths will always be zero. Note that we reset to `null` here, rather
          // than below, in order to ensure that the types in the `if` below are consistent.
          left = left || null;
          right = right || null;
          if (left !== this._contentMargins.left || right !== this._contentMargins.right) {
              this._contentMargins = { left: left, right: right };
              // Pull back into the NgZone since in some cases we could be outside. We need to be careful
              // to do it only when something changed, otherwise we can end up hitting the zone too often.
              this._ngZone.run(function () { return _this._contentMarginChanges.next(_this._contentMargins); });
          }
      };
      MatDrawerContainer.prototype.ngDoCheck = function () {
          var _this = this;
          // If users opted into autosizing, do a check every change detection cycle.
          if (this._autosize && this._isPushed()) {
              // Run outside the NgZone, otherwise the debouncer will throw us into an infinite loop.
              this._ngZone.runOutsideAngular(function () { return _this._doCheckSubject.next(); });
          }
      };
      /**
       * Subscribes to drawer events in order to set a class on the main container element when the
       * drawer is open and the backdrop is visible. This ensures any overflow on the container element
       * is properly hidden.
       */
      MatDrawerContainer.prototype._watchDrawerToggle = function (drawer) {
          var _this = this;
          drawer._animationStarted.pipe(filter(function (event) { return event.fromState !== event.toState; }), takeUntil(this._drawers.changes))
              .subscribe(function (event) {
              // Set the transition class on the container so that the animations occur. This should not
              // be set initially because animations should only be triggered via a change in state.
              if (event.toState !== 'open-instant' && _this._animationMode !== 'NoopAnimations') {
                  _this._element.nativeElement.classList.add('mat-drawer-transition');
              }
              _this.updateContentMargins();
              _this._changeDetectorRef.markForCheck();
          });
          if (drawer.mode !== 'side') {
              drawer.openedChange.pipe(takeUntil(this._drawers.changes)).subscribe(function () {
                  return _this._setContainerClass(drawer.opened);
              });
          }
      };
      /**
       * Subscribes to drawer onPositionChanged event in order to
       * re-validate drawers when the position changes.
       */
      MatDrawerContainer.prototype._watchDrawerPosition = function (drawer) {
          var _this = this;
          if (!drawer) {
              return;
          }
          // NOTE: We need to wait for the microtask queue to be empty before validating,
          // since both drawers may be swapping positions at the same time.
          drawer.onPositionChanged.pipe(takeUntil(this._drawers.changes)).subscribe(function () {
              _this._ngZone.onMicrotaskEmpty.asObservable().pipe(take(1)).subscribe(function () {
                  _this._validateDrawers();
              });
          });
      };
      /** Subscribes to changes in drawer mode so we can run change detection. */
      MatDrawerContainer.prototype._watchDrawerMode = function (drawer) {
          var _this = this;
          if (drawer) {
              drawer._modeChanged.pipe(takeUntil(merge(this._drawers.changes, this._destroyed)))
                  .subscribe(function () {
                  _this.updateContentMargins();
                  _this._changeDetectorRef.markForCheck();
              });
          }
      };
      /** Toggles the 'mat-drawer-opened' class on the main 'mat-drawer-container' element. */
      MatDrawerContainer.prototype._setContainerClass = function (isAdd) {
          var classList = this._element.nativeElement.classList;
          var className = 'mat-drawer-container-has-open';
          if (isAdd) {
              classList.add(className);
          }
          else {
              classList.remove(className);
          }
      };
      /** Validate the state of the drawer children components. */
      MatDrawerContainer.prototype._validateDrawers = function () {
          var _this = this;
          this._start = this._end = null;
          // Ensure that we have at most one start and one end drawer.
          this._drawers.forEach(function (drawer) {
              if (drawer.position == 'end') {
                  if (_this._end != null) {
                      throwMatDuplicatedDrawerError('end');
                  }
                  _this._end = drawer;
              }
              else {
                  if (_this._start != null) {
                      throwMatDuplicatedDrawerError('start');
                  }
                  _this._start = drawer;
              }
          });
          this._right = this._left = null;
          // Detect if we're LTR or RTL.
          if (this._dir && this._dir.value === 'rtl') {
              this._left = this._end;
              this._right = this._start;
          }
          else {
              this._left = this._start;
              this._right = this._end;
          }
      };
      /** Whether the container is being pushed to the side by one of the drawers. */
      MatDrawerContainer.prototype._isPushed = function () {
          return (this._isDrawerOpen(this._start) && this._start.mode != 'over') ||
              (this._isDrawerOpen(this._end) && this._end.mode != 'over');
      };
      MatDrawerContainer.prototype._onBackdropClicked = function () {
          this.backdropClick.emit();
          this._closeModalDrawer();
      };
      MatDrawerContainer.prototype._closeModalDrawer = function () {
          var _this = this;
          // Close all open drawers where closing is not disabled and the mode is not `side`.
          [this._start, this._end]
              .filter(function (drawer) { return drawer && !drawer.disableClose && _this._canHaveBackdrop(drawer); })
              .forEach(function (drawer) { return drawer.close(); });
      };
      MatDrawerContainer.prototype._isShowingBackdrop = function () {
          return (this._isDrawerOpen(this._start) && this._canHaveBackdrop(this._start)) ||
              (this._isDrawerOpen(this._end) && this._canHaveBackdrop(this._end));
      };
      MatDrawerContainer.prototype._canHaveBackdrop = function (drawer) {
          return drawer.mode !== 'side' || !!this._backdropOverride;
      };
      MatDrawerContainer.prototype._isDrawerOpen = function (drawer) {
          return drawer != null && drawer.opened;
      };
      MatDrawerContainer.decorators = [
          { type: Component, args: [{
                      selector: 'mat-drawer-container',
                      exportAs: 'matDrawerContainer',
                      template: "<div class=\"mat-drawer-backdrop\" (click)=\"_onBackdropClicked()\" *ngIf=\"hasBackdrop\"\n     [class.mat-drawer-shown]=\"_isShowingBackdrop()\"></div>\n\n<ng-content select=\"mat-drawer\"></ng-content>\n\n<ng-content select=\"mat-drawer-content\">\n</ng-content>\n<mat-drawer-content *ngIf=\"!_content\">\n  <ng-content></ng-content>\n</mat-drawer-content>\n",
                      host: {
                          'class': 'mat-drawer-container',
                          '[class.mat-drawer-container-explicit-backdrop]': '_backdropOverride',
                      },
                      changeDetection: ChangeDetectionStrategy.OnPush,
                      encapsulation: ViewEncapsulation.None,
                      providers: [{
                              provide: MAT_DRAWER_CONTAINER,
                              useExisting: MatDrawerContainer
                          }],
                      styles: [".mat-drawer-container{position:relative;z-index:1;box-sizing:border-box;-webkit-overflow-scrolling:touch;display:block;overflow:hidden}.mat-drawer-container[fullscreen]{top:0;left:0;right:0;bottom:0;position:absolute}.mat-drawer-container[fullscreen].mat-drawer-container-has-open{overflow:hidden}.mat-drawer-container.mat-drawer-container-explicit-backdrop .mat-drawer-side{z-index:3}.mat-drawer-container.ng-animate-disabled .mat-drawer-backdrop,.mat-drawer-container.ng-animate-disabled .mat-drawer-content,.ng-animate-disabled .mat-drawer-container .mat-drawer-backdrop,.ng-animate-disabled .mat-drawer-container .mat-drawer-content{transition:none}.mat-drawer-backdrop{top:0;left:0;right:0;bottom:0;position:absolute;display:block;z-index:3;visibility:hidden}.mat-drawer-backdrop.mat-drawer-shown{visibility:visible}.mat-drawer-transition .mat-drawer-backdrop{transition-duration:400ms;transition-timing-function:cubic-bezier(0.25, 0.8, 0.25, 1);transition-property:background-color,visibility}.cdk-high-contrast-active .mat-drawer-backdrop{opacity:.5}.mat-drawer-content{position:relative;z-index:1;display:block;height:100%;overflow:auto}.mat-drawer-transition .mat-drawer-content{transition-duration:400ms;transition-timing-function:cubic-bezier(0.25, 0.8, 0.25, 1);transition-property:transform,margin-left,margin-right}.mat-drawer{position:relative;z-index:4;display:block;position:absolute;top:0;bottom:0;z-index:3;outline:0;box-sizing:border-box;overflow-y:auto;transform:translate3d(-100%, 0, 0)}.cdk-high-contrast-active .mat-drawer,.cdk-high-contrast-active [dir=rtl] .mat-drawer.mat-drawer-end{border-right:solid 1px currentColor}.cdk-high-contrast-active [dir=rtl] .mat-drawer,.cdk-high-contrast-active .mat-drawer.mat-drawer-end{border-left:solid 1px currentColor;border-right:none}.mat-drawer.mat-drawer-side{z-index:2}.mat-drawer.mat-drawer-end{right:0;transform:translate3d(100%, 0, 0)}[dir=rtl] .mat-drawer{transform:translate3d(100%, 0, 0)}[dir=rtl] .mat-drawer.mat-drawer-end{left:0;right:auto;transform:translate3d(-100%, 0, 0)}.mat-drawer-inner-container{width:100%;height:100%;overflow:auto;-webkit-overflow-scrolling:touch}.mat-sidenav-fixed{position:fixed}\n"]
                  }] }
      ];
      /** @nocollapse */
      MatDrawerContainer.ctorParameters = function () { return [
          { type: Directionality, decorators: [{ type: Optional }] },
          { type: ElementRef },
          { type: NgZone },
          { type: ChangeDetectorRef },
          { type: ViewportRuler },
          { type: undefined, decorators: [{ type: Inject, args: [MAT_DRAWER_DEFAULT_AUTOSIZE,] }] },
          { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }
      ]; };
      MatDrawerContainer.propDecorators = {
          _allDrawers: [{ type: ContentChildren, args: [MatDrawer, {
                          // We need to use `descendants: true`, because Ivy will no longer match
                          // indirect descendants if it's left as false.
                          descendants: true
                      },] }],
          _content: [{ type: ContentChild, args: [MatDrawerContent,] }],
          _userContent: [{ type: ViewChild, args: [MatDrawerContent,] }],
          autosize: [{ type: Input }],
          hasBackdrop: [{ type: Input }],
          backdropClick: [{ type: Output }]
      };
      return MatDrawerContainer;
  }());
  
  /**
   * @license
   * Copyright Google LLC 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
   */
  var MatSidenavContent = /** @class */ (function (_super) {
      __extends(MatSidenavContent, _super);
      function MatSidenavContent(changeDetectorRef, container, elementRef, scrollDispatcher, ngZone) {
          return _super.call(this, changeDetectorRef, container, elementRef, scrollDispatcher, ngZone) || this;
      }
      MatSidenavContent.decorators = [
          { type: Component, args: [{
                      selector: 'mat-sidenav-content',
                      template: '<ng-content></ng-content>',
                      host: {
                          'class': 'mat-drawer-content mat-sidenav-content',
                          '[style.margin-left.px]': '_container._contentMargins.left',
                          '[style.margin-right.px]': '_container._contentMargins.right',
                      },
                      changeDetection: ChangeDetectionStrategy.OnPush,
                      encapsulation: ViewEncapsulation.None
                  }] }
      ];
      /** @nocollapse */
      MatSidenavContent.ctorParameters = function () { return [
          { type: ChangeDetectorRef },
          { type: MatSidenavContainer, decorators: [{ type: Inject, args: [forwardRef(function () { return MatSidenavContainer; }),] }] },
          { type: ElementRef },
          { type: ScrollDispatcher },
          { type: NgZone }
      ]; };
      return MatSidenavContent;
  }(MatDrawerContent));
  var MatSidenav = /** @class */ (function (_super) {
      __extends(MatSidenav, _super);
      function MatSidenav() {
          var _this = _super !== null && _super.apply(this, arguments) || this;
          _this._fixedInViewport = false;
          _this._fixedTopGap = 0;
          _this._fixedBottomGap = 0;
          return _this;
      }
      Object.defineProperty(MatSidenav.prototype, "fixedInViewport", {
          /** Whether the sidenav is fixed in the viewport. */
          get: function () { return this._fixedInViewport; },
          set: function (value) { this._fixedInViewport = coerceBooleanProperty(value); },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatSidenav.prototype, "fixedTopGap", {
          /**
           * The gap between the top of the sidenav and the top of the viewport when the sidenav is in fixed
           * mode.
           */
          get: function () { return this._fixedTopGap; },
          set: function (value) { this._fixedTopGap = coerceNumberProperty(value); },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(MatSidenav.prototype, "fixedBottomGap", {
          /**
           * The gap between the bottom of the sidenav and the bottom of the viewport when the sidenav is in
           * fixed mode.
           */
          get: function () { return this._fixedBottomGap; },
          set: function (value) { this._fixedBottomGap = coerceNumberProperty(value); },
          enumerable: true,
          configurable: true
      });
      MatSidenav.decorators = [
          { type: Component, args: [{
                      selector: 'mat-sidenav',
                      exportAs: 'matSidenav',
                      template: "<div class=\"mat-drawer-inner-container\">\r\n  <ng-content></ng-content>\r\n</div>\r\n",
                      animations: [matDrawerAnimations.transformDrawer],
                      host: {
                          'class': 'mat-drawer mat-sidenav',
                          'tabIndex': '-1',
                          // must prevent the browser from aligning text based on value
                          '[attr.align]': 'null',
                          '[class.mat-drawer-end]': 'position === "end"',
                          '[class.mat-drawer-over]': 'mode === "over"',
                          '[class.mat-drawer-push]': 'mode === "push"',
                          '[class.mat-drawer-side]': 'mode === "side"',
                          '[class.mat-drawer-opened]': 'opened',
                          '[class.mat-sidenav-fixed]': 'fixedInViewport',
                          '[style.top.px]': 'fixedInViewport ? fixedTopGap : null',
                          '[style.bottom.px]': 'fixedInViewport ? fixedBottomGap : null',
                      },
                      changeDetection: ChangeDetectionStrategy.OnPush,
                      encapsulation: ViewEncapsulation.None
                  }] }
      ];
      MatSidenav.propDecorators = {
          fixedInViewport: [{ type: Input }],
          fixedTopGap: [{ type: Input }],
          fixedBottomGap: [{ type: Input }]
      };
      return MatSidenav;
  }(MatDrawer));
  var MatSidenavContainer = /** @class */ (function (_super) {
      __extends(MatSidenavContainer, _super);
      function MatSidenavContainer() {
          return _super !== null && _super.apply(this, arguments) || this;
      }
      MatSidenavContainer.decorators = [
          { type: Component, args: [{
                      selector: 'mat-sidenav-container',
                      exportAs: 'matSidenavContainer',
                      template: "<div class=\"mat-drawer-backdrop\" (click)=\"_onBackdropClicked()\" *ngIf=\"hasBackdrop\"\n     [class.mat-drawer-shown]=\"_isShowingBackdrop()\"></div>\n\n<ng-content select=\"mat-sidenav\"></ng-content>\n\n<ng-content select=\"mat-sidenav-content\">\n</ng-content>\n<mat-sidenav-content *ngIf=\"!_content\" cdkScrollable>\n  <ng-content></ng-content>\n</mat-sidenav-content>\n",
                      host: {
                          'class': 'mat-drawer-container mat-sidenav-container',
                          '[class.mat-drawer-container-explicit-backdrop]': '_backdropOverride',
                      },
                      changeDetection: ChangeDetectionStrategy.OnPush,
                      encapsulation: ViewEncapsulation.None,
                      providers: [{
                              provide: MAT_DRAWER_CONTAINER,
                              useExisting: MatSidenavContainer
                          }],
                      styles: [".mat-drawer-container{position:relative;z-index:1;box-sizing:border-box;-webkit-overflow-scrolling:touch;display:block;overflow:hidden}.mat-drawer-container[fullscreen]{top:0;left:0;right:0;bottom:0;position:absolute}.mat-drawer-container[fullscreen].mat-drawer-container-has-open{overflow:hidden}.mat-drawer-container.mat-drawer-container-explicit-backdrop .mat-drawer-side{z-index:3}.mat-drawer-container.ng-animate-disabled .mat-drawer-backdrop,.mat-drawer-container.ng-animate-disabled .mat-drawer-content,.ng-animate-disabled .mat-drawer-container .mat-drawer-backdrop,.ng-animate-disabled .mat-drawer-container .mat-drawer-content{transition:none}.mat-drawer-backdrop{top:0;left:0;right:0;bottom:0;position:absolute;display:block;z-index:3;visibility:hidden}.mat-drawer-backdrop.mat-drawer-shown{visibility:visible}.mat-drawer-transition .mat-drawer-backdrop{transition-duration:400ms;transition-timing-function:cubic-bezier(0.25, 0.8, 0.25, 1);transition-property:background-color,visibility}.cdk-high-contrast-active .mat-drawer-backdrop{opacity:.5}.mat-drawer-content{position:relative;z-index:1;display:block;height:100%;overflow:auto}.mat-drawer-transition .mat-drawer-content{transition-duration:400ms;transition-timing-function:cubic-bezier(0.25, 0.8, 0.25, 1);transition-property:transform,margin-left,margin-right}.mat-drawer{position:relative;z-index:4;display:block;position:absolute;top:0;bottom:0;z-index:3;outline:0;box-sizing:border-box;overflow-y:auto;transform:translate3d(-100%, 0, 0)}.cdk-high-contrast-active .mat-drawer,.cdk-high-contrast-active [dir=rtl] .mat-drawer.mat-drawer-end{border-right:solid 1px currentColor}.cdk-high-contrast-active [dir=rtl] .mat-drawer,.cdk-high-contrast-active .mat-drawer.mat-drawer-end{border-left:solid 1px currentColor;border-right:none}.mat-drawer.mat-drawer-side{z-index:2}.mat-drawer.mat-drawer-end{right:0;transform:translate3d(100%, 0, 0)}[dir=rtl] .mat-drawer{transform:translate3d(100%, 0, 0)}[dir=rtl] .mat-drawer.mat-drawer-end{left:0;right:auto;transform:translate3d(-100%, 0, 0)}.mat-drawer-inner-container{width:100%;height:100%;overflow:auto;-webkit-overflow-scrolling:touch}.mat-sidenav-fixed{position:fixed}\n"]
                  }] }
      ];
      MatSidenavContainer.propDecorators = {
          _allDrawers: [{ type: ContentChildren, args: [MatSidenav, {
                          // We need to use `descendants: true`, because Ivy will no longer match
                          // indirect descendants if it's left as false.
                          descendants: true
                      },] }],
          _content: [{ type: ContentChild, args: [MatSidenavContent,] }]
      };
      return MatSidenavContainer;
  }(MatDrawerContainer));
  
  /**
   * @license
   * Copyright Google LLC 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
   */
  var MatSidenavModule = /** @class */ (function () {
      function MatSidenavModule() {
      }
      MatSidenavModule.decorators = [
          { type: NgModule, args: [{
                      imports: [
                          CommonModule,
                          MatCommonModule,
                          PlatformModule,
                          CdkScrollableModule,
                      ],
                      exports: [
                          CdkScrollableModule,
                          MatCommonModule,
                          MatDrawer,
                          MatDrawerContainer,
                          MatDrawerContent,
                          MatSidenav,
                          MatSidenavContainer,
                          MatSidenavContent,
                      ],
                      declarations: [
                          MatDrawer,
                          MatDrawerContainer,
                          MatDrawerContent,
                          MatSidenav,
                          MatSidenavContainer,
                          MatSidenavContent,
                      ],
                  },] }
      ];
      return MatSidenavModule;
  }());
  
  /**
   * @license
   * Copyright Google LLC 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
   */
  
  /**
   * Generated bundle index. Do not edit.
   */
  
  export { MAT_DRAWER_DEFAULT_AUTOSIZE, MAT_DRAWER_DEFAULT_AUTOSIZE_FACTORY, MatDrawer, MatDrawerContainer, MatDrawerContent, MatSidenav, MatSidenavContainer, MatSidenavContent, MatSidenavModule, matDrawerAnimations, throwMatDuplicatedDrawerError, MAT_DRAWER_CONTAINER as ɵangular_material_src_material_sidenav_sidenav_a };
  //# sourceMappingURL=sidenav.js.map
  