27-es5.js

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[27], {
  /***/
  "./node_modules/@ionic/core/dist/esm/ion-infinite-scroll_2-md.entry.js":
  /*!*****************************************************************************!*\
    !*** ./node_modules/@ionic/core/dist/esm/ion-infinite-scroll_2-md.entry.js ***!
    \*****************************************************************************/

  /*! exports provided: ion_infinite_scroll, ion_infinite_scroll_content */

  /***/
  function node_modulesIonicCoreDistEsmIonInfiniteScroll_2MdEntryJs(module, __webpack_exports__, __webpack_require__) {
    "use strict";

    __webpack_require__.r(__webpack_exports__);
    /* harmony export (binding) */


    __webpack_require__.d(__webpack_exports__, "ion_infinite_scroll", function () {
      return InfiniteScroll;
    });
    /* harmony export (binding) */


    __webpack_require__.d(__webpack_exports__, "ion_infinite_scroll_content", function () {
      return InfiniteScrollContent;
    });
    /* harmony import */


    var _index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(
    /*! ./index-26ec602c.js */
    "./node_modules/@ionic/core/dist/esm/index-26ec602c.js");
    /* harmony import */


    var _ionic_global_1bf1fa84_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(
    /*! ./ionic-global-1bf1fa84.js */
    "./node_modules/@ionic/core/dist/esm/ionic-global-1bf1fa84.js");
    /* harmony import */


    var _index_79d74e0b_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(
    /*! ./index-79d74e0b.js */
    "./node_modules/@ionic/core/dist/esm/index-79d74e0b.js");

    var infiniteScrollCss = "ion-infinite-scroll{display:none;width:100%}.infinite-scroll-enabled{display:block}";

    var InfiniteScroll = /*#__PURE__*/function () {
      function InfiniteScroll(hostRef) {
        var _this = this;

        _classCallCheck(this, InfiniteScroll);

        Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["r"])(this, hostRef);
        this.thrPx = 0;
        this.thrPc = 0;
        this.didFire = false;
        this.isBusy = false;
        this.isLoading = false;
        /**
         * The threshold distance from the bottom
         * of the content to call the `infinite` output event when scrolled.
         * The threshold value can be either a percent, or
         * in pixels. For example, use the value of `10%` for the `infinite`
         * output event to get called when the user has scrolled 10%
         * from the bottom of the page. Use the value `100px` when the
         * scroll is within 100 pixels from the bottom of the page.
         */

        this.threshold = '15%';
        /**
         * If `true`, the infinite scroll will be hidden and scroll event listeners
         * will be removed.
         *
         * Set this to true to disable the infinite scroll from actively
         * trying to receive new data while scrolling. This is useful
         * when it is known that there is no more data that can be added, and
         * the infinite scroll is no longer needed.
         */

        this.disabled = false;
        /**
         * The position of the infinite scroll element.
         * The value can be either `top` or `bottom`.
         */

        this.position = 'bottom';

        this.onScroll = function () {
          var scrollEl = _this.scrollEl;

          if (!scrollEl || !_this.canStart()) {
            return 1;
          }

          var infiniteHeight = _this.el.offsetHeight;

          if (infiniteHeight === 0) {
            // if there is no height of this element then do nothing
            return 2;
          }

          var scrollTop = scrollEl.scrollTop;
          var scrollHeight = scrollEl.scrollHeight;
          var height = scrollEl.offsetHeight;
          var threshold = _this.thrPc !== 0 ? height * _this.thrPc : _this.thrPx;
          var distanceFromInfinite = _this.position === 'bottom' ? scrollHeight - infiniteHeight - scrollTop - threshold - height : scrollTop - infiniteHeight - threshold;

          if (distanceFromInfinite < 0) {
            if (!_this.didFire) {
              _this.isLoading = true;
              _this.didFire = true;

              _this.ionInfinite.emit();

              return 3;
            }
          } else {
            _this.didFire = false;
          }

          return 4;
        };

        this.ionInfinite = Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["d"])(this, "ionInfinite", 7);
      }

      _createClass(InfiniteScroll, [{
        key: "thresholdChanged",
        value: function thresholdChanged() {
          var val = this.threshold;

          if (val.lastIndexOf('%') > -1) {
            this.thrPx = 0;
            this.thrPc = parseFloat(val) / 100;
          } else {
            this.thrPx = parseFloat(val);
            this.thrPc = 0;
          }
        }
      }, {
        key: "disabledChanged",
        value: function disabledChanged() {
          var disabled = this.disabled;

          if (disabled) {
            this.isLoading = false;
            this.isBusy = false;
          }

          this.enableScrollEvents(!disabled);
        }
      }, {
        key: "connectedCallback",
        value: function () {
          var _connectedCallback = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {
            var _this2 = this;

            var contentEl;
            return regeneratorRuntime.wrap(function _callee$(_context) {
              while (1) {
                switch (_context.prev = _context.next) {
                  case 0:
                    contentEl = this.el.closest('ion-content');

                    if (contentEl) {
                      _context.next = 4;
                      break;
                    }

                    console.error('<ion-infinite-scroll> must be used inside an <ion-content>');
                    return _context.abrupt("return");

                  case 4:
                    _context.next = 6;
                    return contentEl.getScrollElement();

                  case 6:
                    this.scrollEl = _context.sent;
                    this.thresholdChanged();
                    this.disabledChanged();

                    if (this.position === 'top') {
                      Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["w"])(function () {
                        if (_this2.scrollEl) {
                          _this2.scrollEl.scrollTop = _this2.scrollEl.scrollHeight - _this2.scrollEl.clientHeight;
                        }
                      });
                    }

                  case 10:
                  case "end":
                    return _context.stop();
                }
              }
            }, _callee, this);
          }));

          function connectedCallback() {
            return _connectedCallback.apply(this, arguments);
          }

          return connectedCallback;
        }()
      }, {
        key: "disconnectedCallback",
        value: function disconnectedCallback() {
          this.enableScrollEvents(false);
          this.scrollEl = undefined;
        }
        /**
         * Call `complete()` within the `ionInfinite` output event handler when
         * your async operation has completed. For example, the `loading`
         * state is while the app is performing an asynchronous operation,
         * such as receiving more data from an AJAX request to add more items
         * to a data list. Once the data has been received and UI updated, you
         * then call this method to signify that the loading has completed.
         * This method will change the infinite scroll's state from `loading`
         * to `enabled`.
         */

      }, {
        key: "complete",
        value: function () {
          var _complete = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee2() {
            var _this3 = this;

            var scrollEl, prev;
            return regeneratorRuntime.wrap(function _callee2$(_context2) {
              while (1) {
                switch (_context2.prev = _context2.next) {
                  case 0:
                    scrollEl = this.scrollEl;

                    if (!(!this.isLoading || !scrollEl)) {
                      _context2.next = 3;
                      break;
                    }

                    return _context2.abrupt("return");

                  case 3:
                    this.isLoading = false;

                    if (this.position === 'top') {
                      /**
                       * New content is being added at the top, but the scrollTop position stays the same,
                       * which causes a scroll jump visually. This algorithm makes sure to prevent this.
                       * (Frame 1)
                       *    - complete() is called, but the UI hasn't had time to update yet.
                       *    - Save the current content dimensions.
                       *    - Wait for the next frame using _dom.read, so the UI will be updated.
                       * (Frame 2)
                       *    - Read the new content dimensions.
                       *    - Calculate the height difference and the new scroll position.
                       *    - Delay the scroll position change until other possible dom reads are done using _dom.write to be performant.
                       * (Still frame 2, if I'm correct)
                       *    - Change the scroll position (= visually maintain the scroll position).
                       *    - Change the state to re-enable the InfiniteScroll.
                       *    - This should be after changing the scroll position, or it could
                       *    cause the InfiniteScroll to be triggered again immediately.
                       * (Frame 3)
                       *    Done.
                       */
                      this.isBusy = true; // ******** DOM READ ****************
                      // Save the current content dimensions before the UI updates

                      prev = scrollEl.scrollHeight - scrollEl.scrollTop; // ******** DOM READ ****************

                      requestAnimationFrame(function () {
                        Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["f"])(function () {
                          // UI has updated, save the new content dimensions
                          var scrollHeight = scrollEl.scrollHeight; // New content was added on top, so the scroll position should be changed immediately to prevent it from jumping around

                          var newScrollTop = scrollHeight - prev; // ******** DOM WRITE ****************

                          requestAnimationFrame(function () {
                            Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["w"])(function () {
                              scrollEl.scrollTop = newScrollTop;
                              _this3.isBusy = false;
                            });
                          });
                        });
                      });
                    }

                  case 5:
                  case "end":
                    return _context2.stop();
                }
              }
            }, _callee2, this);
          }));

          function complete() {
            return _complete.apply(this, arguments);
          }

          return complete;
        }()
      }, {
        key: "canStart",
        value: function canStart() {
          return !this.disabled && !this.isBusy && !!this.scrollEl && !this.isLoading;
        }
      }, {
        key: "enableScrollEvents",
        value: function enableScrollEvents(shouldListen) {
          if (this.scrollEl) {
            if (shouldListen) {
              this.scrollEl.addEventListener('scroll', this.onScroll);
            } else {
              this.scrollEl.removeEventListener('scroll', this.onScroll);
            }
          }
        }
      }, {
        key: "render",
        value: function render() {
          var _class;

          var mode = Object(_ionic_global_1bf1fa84_js__WEBPACK_IMPORTED_MODULE_1__["b"])(this);
          var disabled = this.disabled;
          return Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["h"])(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["H"], {
            "class": (_class = {}, _defineProperty(_class, mode, true), _defineProperty(_class, 'infinite-scroll-loading', this.isLoading), _defineProperty(_class, 'infinite-scroll-enabled', !disabled), _class)
          });
        }
      }, {
        key: "el",
        get: function get() {
          return Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["e"])(this);
        }
      }], [{
        key: "watchers",
        get: function get() {
          return {
            "threshold": ["thresholdChanged"],
            "disabled": ["disabledChanged"]
          };
        }
      }]);

      return InfiniteScroll;
    }();

    InfiniteScroll.style = infiniteScrollCss;
    var infiniteScrollContentIosCss = "ion-infinite-scroll-content{display:-ms-flexbox;display:flex;-ms-flex-direction:column;flex-direction:column;-ms-flex-pack:center;justify-content:center;min-height:84px;text-align:center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.infinite-loading{margin-left:0;margin-right:0;margin-top:0;margin-bottom:32px;display:none;width:100%}.infinite-loading-text{margin-left:32px;margin-right:32px;margin-top:4px;margin-bottom:0}@supports ((-webkit-margin-start: 0) or (margin-inline-start: 0)) or (-webkit-margin-start: 0){.infinite-loading-text{margin-left:unset;margin-right:unset;-webkit-margin-start:32px;margin-inline-start:32px;-webkit-margin-end:32px;margin-inline-end:32px}}.infinite-scroll-loading ion-infinite-scroll-content>.infinite-loading{display:block}.infinite-scroll-content-ios .infinite-loading-text{color:var(--ion-color-step-600, #666666)}.infinite-scroll-content-ios .infinite-loading-spinner .spinner-lines-ios line,.infinite-scroll-content-ios .infinite-loading-spinner .spinner-lines-small-ios line,.infinite-scroll-content-ios .infinite-loading-spinner .spinner-crescent circle{stroke:var(--ion-color-step-600, #666666)}.infinite-scroll-content-ios .infinite-loading-spinner .spinner-bubbles circle,.infinite-scroll-content-ios .infinite-loading-spinner .spinner-circles circle,.infinite-scroll-content-ios .infinite-loading-spinner .spinner-dots circle{fill:var(--ion-color-step-600, #666666)}";
    var infiniteScrollContentMdCss = "ion-infinite-scroll-content{display:-ms-flexbox;display:flex;-ms-flex-direction:column;flex-direction:column;-ms-flex-pack:center;justify-content:center;min-height:84px;text-align:center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.infinite-loading{margin-left:0;margin-right:0;margin-top:0;margin-bottom:32px;display:none;width:100%}.infinite-loading-text{margin-left:32px;margin-right:32px;margin-top:4px;margin-bottom:0}@supports ((-webkit-margin-start: 0) or (margin-inline-start: 0)) or (-webkit-margin-start: 0){.infinite-loading-text{margin-left:unset;margin-right:unset;-webkit-margin-start:32px;margin-inline-start:32px;-webkit-margin-end:32px;margin-inline-end:32px}}.infinite-scroll-loading ion-infinite-scroll-content>.infinite-loading{display:block}.infinite-scroll-content-md .infinite-loading-text{color:var(--ion-color-step-600, #666666)}.infinite-scroll-content-md .infinite-loading-spinner .spinner-lines-md line,.infinite-scroll-content-md .infinite-loading-spinner .spinner-lines-small-md line,.infinite-scroll-content-md .infinite-loading-spinner .spinner-crescent circle{stroke:var(--ion-color-step-600, #666666)}.infinite-scroll-content-md .infinite-loading-spinner .spinner-bubbles circle,.infinite-scroll-content-md .infinite-loading-spinner .spinner-circles circle,.infinite-scroll-content-md .infinite-loading-spinner .spinner-dots circle{fill:var(--ion-color-step-600, #666666)}";

    var InfiniteScrollContent = /*#__PURE__*/function () {
      function InfiniteScrollContent(hostRef) {
        _classCallCheck(this, InfiniteScrollContent);

        Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["r"])(this, hostRef);
      }

      _createClass(InfiniteScrollContent, [{
        key: "componentDidLoad",
        value: function componentDidLoad() {
          if (this.loadingSpinner === undefined) {
            var mode = Object(_ionic_global_1bf1fa84_js__WEBPACK_IMPORTED_MODULE_1__["b"])(this);
            this.loadingSpinner = _ionic_global_1bf1fa84_js__WEBPACK_IMPORTED_MODULE_1__["c"].get('infiniteLoadingSpinner', _ionic_global_1bf1fa84_js__WEBPACK_IMPORTED_MODULE_1__["c"].get('spinner', mode === 'ios' ? 'lines' : 'crescent'));
          }
        }
      }, {
        key: "render",
        value: function render() {
          var _class2;

          var mode = Object(_ionic_global_1bf1fa84_js__WEBPACK_IMPORTED_MODULE_1__["b"])(this);
          return Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["h"])(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["H"], {
            "class": (_class2 = {}, _defineProperty(_class2, mode, true), _defineProperty(_class2, "infinite-scroll-content-".concat(mode), true), _class2)
          }, Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["h"])("div", {
            "class": "infinite-loading"
          }, this.loadingSpinner && Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["h"])("div", {
            "class": "infinite-loading-spinner"
          }, Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["h"])("ion-spinner", {
            name: this.loadingSpinner
          })), this.loadingText && Object(_index_26ec602c_js__WEBPACK_IMPORTED_MODULE_0__["h"])("div", {
            "class": "infinite-loading-text",
            innerHTML: Object(_index_79d74e0b_js__WEBPACK_IMPORTED_MODULE_2__["s"])(this.loadingText)
          })));
        }
      }]);

      return InfiniteScrollContent;
    }();

    InfiniteScrollContent.style = {
      /*STENCIL:MODE:ios*/
      ios: infiniteScrollContentIosCss,

      /*STENCIL:MODE:md*/
      md: infiniteScrollContentMdCss
    };
    /***/
  }
}]);
//# sourceMappingURL=27-es5.js.map