text: /**
   * @license
   * Copyright 2018 Google Inc.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  import { __extends } from "tslib";
  import { cssClasses } from '../constants';
  import { MDCTopAppBarBaseFoundation } from '../foundation';
  var MDCShortTopAppBarFoundation = /** @class */ (function (_super) {
      __extends(MDCShortTopAppBarFoundation, _super);
      /* istanbul ignore next: optional argument is not a branch statement */
      function MDCShortTopAppBarFoundation(adapter) {
          var _this = _super.call(this, adapter) || this;
          _this.isCollapsed_ = false;
          _this.isAlwaysCollapsed_ = false;
          return _this;
      }
      Object.defineProperty(MDCShortTopAppBarFoundation.prototype, "isCollapsed", {
          // Public visibility for backward compatibility.
          get: function () {
              return this.isCollapsed_;
          },
          enumerable: false,
          configurable: true
      });
      MDCShortTopAppBarFoundation.prototype.init = function () {
          _super.prototype.init.call(this);
          if (this.adapter.getTotalActionItems() > 0) {
              this.adapter.addClass(cssClasses.SHORT_HAS_ACTION_ITEM_CLASS);
          }
          // If initialized with SHORT_COLLAPSED_CLASS, the bar should always be collapsed
          this.setAlwaysCollapsed(this.adapter.hasClass(cssClasses.SHORT_COLLAPSED_CLASS));
      };
      /**
       * Set if the short top app bar should always be collapsed.
       *
       * @param value When `true`, bar will always be collapsed. When `false`, bar may collapse or expand based on scroll.
       */
      MDCShortTopAppBarFoundation.prototype.setAlwaysCollapsed = function (value) {
          this.isAlwaysCollapsed_ = !!value;
          if (this.isAlwaysCollapsed_) {
              this.collapse_();
          }
          else {
              // let maybeCollapseBar_ determine if the bar should be collapsed
              this.maybeCollapseBar_();
          }
      };
      MDCShortTopAppBarFoundation.prototype.getAlwaysCollapsed = function () {
          return this.isAlwaysCollapsed_;
      };
      /**
       * Scroll handler for applying/removing the collapsed modifier class on the short top app bar.
       * @override
       */
      MDCShortTopAppBarFoundation.prototype.handleTargetScroll = function () {
          this.maybeCollapseBar_();
      };
      MDCShortTopAppBarFoundation.prototype.maybeCollapseBar_ = function () {
          if (this.isAlwaysCollapsed_) {
              return;
          }
          var currentScroll = this.adapter.getViewportScrollY();
          if (currentScroll <= 0) {
              if (this.isCollapsed_) {
                  this.uncollapse_();
              }
          }
          else {
              if (!this.isCollapsed_) {
                  this.collapse_();
              }
          }
      };
      MDCShortTopAppBarFoundation.prototype.uncollapse_ = function () {
          this.adapter.removeClass(cssClasses.SHORT_COLLAPSED_CLASS);
          this.isCollapsed_ = false;
      };
      MDCShortTopAppBarFoundation.prototype.collapse_ = function () {
          this.adapter.addClass(cssClasses.SHORT_COLLAPSED_CLASS);
          this.isCollapsed_ = true;
      };
      return MDCShortTopAppBarFoundation;
  }(MDCTopAppBarBaseFoundation));
  export { MDCShortTopAppBarFoundation };
  // tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.
  export default MDCShortTopAppBarFoundation;
  //# sourceMappingURL=foundation.js.map