@zoff-tech/zt-bottom-drawer
Version:
Bottom Drawer / Web Component
285 lines (279 loc) • 9.45 kB
JavaScript
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
const index = require('./index-d7fcb92f.js');
const content = require('@utils/content');
const helpers = require('@utils/helpers');
const haptic = require('@utils/native/haptic');
const ionicGlobal = require('./ionic-global-70a62cb2.js');
const reorderGroupCss = ".reorder-list-active>*{display:block;transition:transform 300ms;will-change:transform}.reorder-enabled{user-select:none}.reorder-enabled ion-reorder{display:block;cursor:grab;pointer-events:all;touch-action:none}.reorder-selected,.reorder-selected ion-reorder{cursor:grabbing}.reorder-selected{position:relative;transition:none !important;box-shadow:0 0 10px rgba(0, 0, 0, 0.4);opacity:0.8;z-index:100}.reorder-visible ion-reorder .reorder-icon{transform:translate3d(0, 0, 0)}";
const ReorderGroup = class {
constructor(hostRef) {
index.registerInstance(this, hostRef);
this.ionItemReorder = index.createEvent(this, "ionItemReorder", 7);
this.lastToIndex = -1;
this.cachedHeights = [];
this.scrollElTop = 0;
this.scrollElBottom = 0;
this.scrollElInitial = 0;
this.containerTop = 0;
this.containerBottom = 0;
this.state = 0 /* ReorderGroupState.Idle */;
this.disabled = true;
}
disabledChanged() {
if (this.gesture) {
this.gesture.enable(!this.disabled);
}
}
async connectedCallback() {
const contentEl = content.findClosestIonContent(this.el);
if (contentEl) {
this.scrollEl = await content.getScrollElement(contentEl);
}
this.gesture = (await Promise.resolve().then(function () { return require('./index-0c0ba05f.js'); })).createGesture({
el: this.el,
gestureName: 'reorder',
gesturePriority: 110,
threshold: 0,
direction: 'y',
passive: false,
canStart: (detail) => this.canStart(detail),
onStart: (ev) => this.onStart(ev),
onMove: (ev) => this.onMove(ev),
onEnd: () => this.onEnd(),
});
this.disabledChanged();
}
disconnectedCallback() {
this.onEnd();
if (this.gesture) {
this.gesture.destroy();
this.gesture = undefined;
}
}
/**
* Completes the reorder operation. Must be called by the `ionItemReorder` event.
*
* If a list of items is passed, the list will be reordered and returned in the
* proper order.
*
* If no parameters are passed or if `true` is passed in, the reorder will complete
* and the item will remain in the position it was dragged to. If `false` is passed,
* the reorder will complete and the item will bounce back to its original position.
*
* @param listOrReorder A list of items to be sorted and returned in the new order or a
* boolean of whether or not the reorder should reposition the item.
*/
complete(listOrReorder) {
return Promise.resolve(this.completeReorder(listOrReorder));
}
canStart(ev) {
if (this.selectedItemEl || this.state !== 0 /* ReorderGroupState.Idle */) {
return false;
}
const target = ev.event.target;
const reorderEl = target.closest('ion-reorder');
if (!reorderEl) {
return false;
}
const item = findReorderItem(reorderEl, this.el);
if (!item) {
return false;
}
ev.data = item;
return true;
}
onStart(ev) {
ev.event.preventDefault();
const item = (this.selectedItemEl = ev.data);
const heights = this.cachedHeights;
heights.length = 0;
const el = this.el;
const children = el.children;
if (!children || children.length === 0) {
return;
}
let sum = 0;
for (let i = 0; i < children.length; i++) {
const child = children[i];
sum += child.offsetHeight;
heights.push(sum);
child.$ionIndex = i;
}
const box = el.getBoundingClientRect();
this.containerTop = box.top;
this.containerBottom = box.bottom;
if (this.scrollEl) {
const scrollBox = this.scrollEl.getBoundingClientRect();
this.scrollElInitial = this.scrollEl.scrollTop;
this.scrollElTop = scrollBox.top + AUTO_SCROLL_MARGIN;
this.scrollElBottom = scrollBox.bottom - AUTO_SCROLL_MARGIN;
}
else {
this.scrollElInitial = 0;
this.scrollElTop = 0;
this.scrollElBottom = 0;
}
this.lastToIndex = indexForItem(item);
this.selectedItemHeight = item.offsetHeight;
this.state = 1 /* ReorderGroupState.Active */;
item.classList.add(ITEM_REORDER_SELECTED);
haptic.hapticSelectionStart();
}
onMove(ev) {
const selectedItem = this.selectedItemEl;
if (!selectedItem) {
return;
}
// Scroll if we reach the scroll margins
const scroll = this.autoscroll(ev.currentY);
// // Get coordinate
const top = this.containerTop - scroll;
const bottom = this.containerBottom - scroll;
const currentY = Math.max(top, Math.min(ev.currentY, bottom));
const deltaY = scroll + currentY - ev.startY;
const normalizedY = currentY - top;
const toIndex = this.itemIndexForTop(normalizedY);
if (toIndex !== this.lastToIndex) {
const fromIndex = indexForItem(selectedItem);
this.lastToIndex = toIndex;
haptic.hapticSelectionChanged();
this.reorderMove(fromIndex, toIndex);
}
// Update selected item position
selectedItem.style.transform = `translateY(${deltaY}px)`;
}
onEnd() {
const selectedItemEl = this.selectedItemEl;
this.state = 2 /* ReorderGroupState.Complete */;
if (!selectedItemEl) {
this.state = 0 /* ReorderGroupState.Idle */;
return;
}
const toIndex = this.lastToIndex;
const fromIndex = indexForItem(selectedItemEl);
if (toIndex === fromIndex) {
this.completeReorder();
}
else {
this.ionItemReorder.emit({
from: fromIndex,
to: toIndex,
complete: this.completeReorder.bind(this),
});
}
haptic.hapticSelectionEnd();
}
completeReorder(listOrReorder) {
const selectedItemEl = this.selectedItemEl;
if (selectedItemEl && this.state === 2 /* ReorderGroupState.Complete */) {
const children = this.el.children;
const len = children.length;
const toIndex = this.lastToIndex;
const fromIndex = indexForItem(selectedItemEl);
/**
* insertBefore and setting the transform
* needs to happen in the same frame otherwise
* there will be a duplicate transition. This primarily
* impacts Firefox where insertBefore and transform operations
* are happening in two separate frames.
*/
helpers.raf(() => {
if (toIndex !== fromIndex && (listOrReorder === undefined || listOrReorder === true)) {
const ref = fromIndex < toIndex ? children[toIndex + 1] : children[toIndex];
this.el.insertBefore(selectedItemEl, ref);
}
for (let i = 0; i < len; i++) {
children[i].style['transform'] = '';
}
});
if (Array.isArray(listOrReorder)) {
listOrReorder = reorderArray(listOrReorder, fromIndex, toIndex);
}
selectedItemEl.style.transition = '';
selectedItemEl.classList.remove(ITEM_REORDER_SELECTED);
this.selectedItemEl = undefined;
this.state = 0 /* ReorderGroupState.Idle */;
}
return listOrReorder;
}
itemIndexForTop(deltaY) {
const heights = this.cachedHeights;
for (let i = 0; i < heights.length; i++) {
if (heights[i] > deltaY) {
return i;
}
}
return heights.length - 1;
}
/********* DOM WRITE ********* */
reorderMove(fromIndex, toIndex) {
const itemHeight = this.selectedItemHeight;
const children = this.el.children;
for (let i = 0; i < children.length; i++) {
const style = children[i].style;
let value = '';
if (i > fromIndex && i <= toIndex) {
value = `translateY(${-itemHeight}px)`;
}
else if (i < fromIndex && i >= toIndex) {
value = `translateY(${itemHeight}px)`;
}
style['transform'] = value;
}
}
autoscroll(posY) {
if (!this.scrollEl) {
return 0;
}
let amount = 0;
if (posY < this.scrollElTop) {
amount = -SCROLL_JUMP;
}
else if (posY > this.scrollElBottom) {
amount = SCROLL_JUMP;
}
if (amount !== 0) {
this.scrollEl.scrollBy(0, amount);
}
return this.scrollEl.scrollTop - this.scrollElInitial;
}
render() {
const mode = ionicGlobal.getIonMode(this);
return (index.h(index.Host, { class: {
[mode]: true,
'reorder-enabled': !this.disabled,
'reorder-list-active': this.state !== 0 /* ReorderGroupState.Idle */,
} }));
}
get el() { return index.getElement(this); }
static get watchers() { return {
"disabled": ["disabledChanged"]
}; }
};
const indexForItem = (element) => {
return element['$ionIndex'];
};
const findReorderItem = (node, container) => {
let parent;
while (node) {
parent = node.parentElement;
if (parent === container) {
return node;
}
node = parent;
}
return undefined;
};
const AUTO_SCROLL_MARGIN = 60;
const SCROLL_JUMP = 10;
const ITEM_REORDER_SELECTED = 'reorder-selected';
const reorderArray = (array, from, to) => {
const element = array[from];
array.splice(from, 1);
array.splice(to, 0, element);
return array.slice();
};
ReorderGroup.style = reorderGroupCss;
exports.ion_reorder_group = ReorderGroup;
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