253 lines
13 KiB
JavaScript
253 lines
13 KiB
JavaScript
(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[14],{
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/***/ "./node_modules/@ionic/core/dist/esm/ion-infinite-scroll_2.entry.js":
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/*!**************************************************************************!*\
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!*** ./node_modules/@ionic/core/dist/esm/ion-infinite-scroll_2.entry.js ***!
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\**************************************************************************/
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/*! exports provided: ion_infinite_scroll, ion_infinite_scroll_content */
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/***/ (function(module, __webpack_exports__, __webpack_require__) {
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"use strict";
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__webpack_require__.r(__webpack_exports__);
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/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ion_infinite_scroll", function() { return InfiniteScroll; });
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/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ion_infinite_scroll_content", function() { return InfiniteScrollContent; });
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/* harmony import */ var _index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./index-e806d1f6.js */ "./node_modules/@ionic/core/dist/esm/index-e806d1f6.js");
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/* harmony import */ var _ionic_global_9d5c8ee3_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./ionic-global-9d5c8ee3.js */ "./node_modules/@ionic/core/dist/esm/ionic-global-9d5c8ee3.js");
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/* harmony import */ var _index_9e3fe806_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./index-9e3fe806.js */ "./node_modules/@ionic/core/dist/esm/index-9e3fe806.js");
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const infiniteScrollCss = "ion-infinite-scroll{display:none;width:100%}.infinite-scroll-enabled{display:block}";
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const InfiniteScroll = class {
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constructor(hostRef) {
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Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["r"])(this, hostRef);
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this.ionInfinite = Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["e"])(this, "ionInfinite", 7);
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this.thrPx = 0;
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this.thrPc = 0;
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this.didFire = false;
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this.isBusy = false;
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this.isLoading = false;
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/**
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* The threshold distance from the bottom
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* of the content to call the `infinite` output event when scrolled.
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* The threshold value can be either a percent, or
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* in pixels. For example, use the value of `10%` for the `infinite`
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* output event to get called when the user has scrolled 10%
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* from the bottom of the page. Use the value `100px` when the
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* scroll is within 100 pixels from the bottom of the page.
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*/
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this.threshold = '15%';
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/**
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* If `true`, the infinite scroll will be hidden and scroll event listeners
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* will be removed.
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*
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* Set this to true to disable the infinite scroll from actively
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* trying to receive new data while scrolling. This is useful
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* when it is known that there is no more data that can be added, and
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* the infinite scroll is no longer needed.
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*/
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this.disabled = false;
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/**
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* The position of the infinite scroll element.
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* The value can be either `top` or `bottom`.
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*/
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this.position = 'bottom';
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this.onScroll = () => {
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const scrollEl = this.scrollEl;
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if (!scrollEl || !this.canStart()) {
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return 1;
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}
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const infiniteHeight = this.el.offsetHeight;
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if (infiniteHeight === 0) {
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// if there is no height of this element then do nothing
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return 2;
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}
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const scrollTop = scrollEl.scrollTop;
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const scrollHeight = scrollEl.scrollHeight;
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const height = scrollEl.offsetHeight;
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const threshold = this.thrPc !== 0 ? (height * this.thrPc) : this.thrPx;
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const distanceFromInfinite = (this.position === 'bottom')
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? scrollHeight - infiniteHeight - scrollTop - threshold - height
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: scrollTop - infiniteHeight - threshold;
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if (distanceFromInfinite < 0) {
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if (!this.didFire) {
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this.isLoading = true;
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this.didFire = true;
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this.ionInfinite.emit();
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return 3;
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}
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}
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else {
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this.didFire = false;
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}
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return 4;
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};
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}
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thresholdChanged() {
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const val = this.threshold;
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if (val.lastIndexOf('%') > -1) {
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this.thrPx = 0;
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this.thrPc = (parseFloat(val) / 100);
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}
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else {
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this.thrPx = parseFloat(val);
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this.thrPc = 0;
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}
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}
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disabledChanged() {
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const disabled = this.disabled;
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if (disabled) {
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this.isLoading = false;
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this.isBusy = false;
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}
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this.enableScrollEvents(!disabled);
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}
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async connectedCallback() {
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const contentEl = this.el.closest('ion-content');
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if (!contentEl) {
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console.error('<ion-infinite-scroll> must be used inside an <ion-content>');
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return;
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}
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this.scrollEl = await contentEl.getScrollElement();
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this.thresholdChanged();
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this.disabledChanged();
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if (this.position === 'top') {
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Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["c"])(() => {
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if (this.scrollEl) {
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this.scrollEl.scrollTop = this.scrollEl.scrollHeight - this.scrollEl.clientHeight;
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}
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});
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}
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}
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disconnectedCallback() {
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this.enableScrollEvents(false);
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this.scrollEl = undefined;
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}
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/**
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* Call `complete()` within the `ionInfinite` output event handler when
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* your async operation has completed. For example, the `loading`
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* state is while the app is performing an asynchronous operation,
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* such as receiving more data from an AJAX request to add more items
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* to a data list. Once the data has been received and UI updated, you
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* then call this method to signify that the loading has completed.
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* This method will change the infinite scroll's state from `loading`
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* to `enabled`.
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*/
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async complete() {
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const scrollEl = this.scrollEl;
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if (!this.isLoading || !scrollEl) {
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return;
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}
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this.isLoading = false;
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if (this.position === 'top') {
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/**
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* New content is being added at the top, but the scrollTop position stays the same,
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* which causes a scroll jump visually. This algorithm makes sure to prevent this.
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* (Frame 1)
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* - complete() is called, but the UI hasn't had time to update yet.
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* - Save the current content dimensions.
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* - Wait for the next frame using _dom.read, so the UI will be updated.
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* (Frame 2)
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* - Read the new content dimensions.
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* - Calculate the height difference and the new scroll position.
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* - Delay the scroll position change until other possible dom reads are done using _dom.write to be performant.
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* (Still frame 2, if I'm correct)
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* - Change the scroll position (= visually maintain the scroll position).
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* - Change the state to re-enable the InfiniteScroll.
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* - This should be after changing the scroll position, or it could
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* cause the InfiniteScroll to be triggered again immediately.
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* (Frame 3)
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* Done.
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*/
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this.isBusy = true;
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// ******** DOM READ ****************
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// Save the current content dimensions before the UI updates
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const prev = scrollEl.scrollHeight - scrollEl.scrollTop;
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// ******** DOM READ ****************
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requestAnimationFrame(() => {
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Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["f"])(() => {
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// UI has updated, save the new content dimensions
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const scrollHeight = scrollEl.scrollHeight;
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// New content was added on top, so the scroll position should be changed immediately to prevent it from jumping around
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const newScrollTop = scrollHeight - prev;
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// ******** DOM WRITE ****************
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requestAnimationFrame(() => {
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Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["c"])(() => {
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scrollEl.scrollTop = newScrollTop;
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this.isBusy = false;
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});
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});
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});
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});
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}
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}
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canStart() {
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return (!this.disabled &&
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!this.isBusy &&
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!!this.scrollEl &&
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!this.isLoading);
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}
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enableScrollEvents(shouldListen) {
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if (this.scrollEl) {
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if (shouldListen) {
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this.scrollEl.addEventListener('scroll', this.onScroll);
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}
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else {
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this.scrollEl.removeEventListener('scroll', this.onScroll);
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}
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}
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}
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render() {
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const mode = Object(_ionic_global_9d5c8ee3_js__WEBPACK_IMPORTED_MODULE_1__["b"])(this);
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const disabled = this.disabled;
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return (Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["h"])(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["H"], { class: {
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[mode]: true,
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'infinite-scroll-loading': this.isLoading,
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'infinite-scroll-enabled': !disabled
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} }));
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}
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get el() { return Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["i"])(this); }
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static get watchers() { return {
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"threshold": ["thresholdChanged"],
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"disabled": ["disabledChanged"]
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}; }
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};
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InfiniteScroll.style = infiniteScrollCss;
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const 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)}";
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const 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)}";
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const InfiniteScrollContent = class {
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constructor(hostRef) {
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Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["r"])(this, hostRef);
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}
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componentDidLoad() {
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if (this.loadingSpinner === undefined) {
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const mode = Object(_ionic_global_9d5c8ee3_js__WEBPACK_IMPORTED_MODULE_1__["b"])(this);
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this.loadingSpinner = _ionic_global_9d5c8ee3_js__WEBPACK_IMPORTED_MODULE_1__["c"].get('infiniteLoadingSpinner', _ionic_global_9d5c8ee3_js__WEBPACK_IMPORTED_MODULE_1__["c"].get('spinner', mode === 'ios' ? 'lines' : 'crescent'));
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}
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}
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render() {
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const mode = Object(_ionic_global_9d5c8ee3_js__WEBPACK_IMPORTED_MODULE_1__["b"])(this);
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return (Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["h"])(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["H"], { class: {
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[mode]: true,
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// Used internally for styling
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[`infinite-scroll-content-${mode}`]: true
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} }, Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["h"])("div", { class: "infinite-loading" }, this.loadingSpinner && (Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["h"])("div", { class: "infinite-loading-spinner" }, Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["h"])("ion-spinner", { name: this.loadingSpinner }))), this.loadingText && (Object(_index_e806d1f6_js__WEBPACK_IMPORTED_MODULE_0__["h"])("div", { class: "infinite-loading-text", innerHTML: Object(_index_9e3fe806_js__WEBPACK_IMPORTED_MODULE_2__["s"])(this.loadingText) })))));
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}
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};
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InfiniteScrollContent.style = {
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ios: infiniteScrollContentIosCss,
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md: infiniteScrollContentMdCss
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};
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/***/ })
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}]);
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//# sourceMappingURL=14-es2015.js.map
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