mirror of
https://github.com/primefaces/primevue.git
synced 2025-05-09 08:52:34 +00:00
Styles imported. Components added
This commit is contained in:
Bahadir Sofuoglu
parent
3cb3910561
commit
8264983db4
452 changed files with 55902 additions and 0 deletions
617
components/virtualscroller/VirtualScroller.vue
Normal file
617
components/virtualscroller/VirtualScroller.vue
Normal file
|
|
@ -0,0 +1,617 @@
|
|||
<template>
|
||||
<template v-if="!disabled">
|
||||
<div :ref="elementRef" :class="containerClass" :tabindex="tabindex" :style="style" @scroll="onScroll">
|
||||
<slot name="content" :styleClass="contentClass" :items="loadedItems" :getItemOptions="getOptions" :loading="d_loading" :getLoaderOptions="getLoaderOptions" :itemSize="itemSize"
|
||||
:rows="loadedRows" :columns="loadedColumns" :contentRef="contentRef" :spacerStyle="spacerStyle" :contentStyle="contentStyle"
|
||||
:vertical="isVertical()" :horizontal="isHorizontal()" :both="isBoth()">
|
||||
<div :ref="contentRef" :class="contentClass" :style="contentStyle">
|
||||
<template v-for="(item, index) of loadedItems" :key="index">
|
||||
<slot name="item" :item="item" :options="getOptions(index)"></slot>
|
||||
</template>
|
||||
</div>
|
||||
</slot>
|
||||
<div class="p-virtualscroller-spacer" :style="spacerStyle" v-if="showSpacer"></div>
|
||||
<div :class="loaderClass" v-if="!loaderDisabled && showLoader && d_loading">
|
||||
<template v-if="$slots && $slots.loader">
|
||||
<template v-for="(_, index) of loaderArr" :key="index">
|
||||
<slot name="loader" :options="getLoaderOptions(index, isBoth() && { numCols: d_numItemsInViewport.cols })"></slot>
|
||||
</template>
|
||||
</template>
|
||||
<i v-else class="p-virtualscroller-loading-icon pi pi-spinner pi-spin"></i>
|
||||
</div>
|
||||
</div>
|
||||
</template>
|
||||
<template v-else>
|
||||
<slot></slot>
|
||||
<slot name="content" :items="items" :rows="items" :columns="loadedColumns"></slot>
|
||||
</template>
|
||||
</template>
|
||||
|
||||
<script>
|
||||
export default {
|
||||
name: 'VirtualScroller',
|
||||
emits: ['update:numToleratedItems', 'scroll', 'scroll-index-change', 'lazy-load'],
|
||||
props: {
|
||||
id: {
|
||||
type: String,
|
||||
default: null
|
||||
},
|
||||
style: null,
|
||||
class: null,
|
||||
items: {
|
||||
type: Array,
|
||||
default: null
|
||||
},
|
||||
itemSize: {
|
||||
type: [Number,Array],
|
||||
default: 0
|
||||
},
|
||||
scrollHeight: null,
|
||||
scrollWidth: null,
|
||||
orientation: {
|
||||
type: String,
|
||||
default: 'vertical'
|
||||
},
|
||||
numToleratedItems: {
|
||||
type: Number,
|
||||
default: null
|
||||
},
|
||||
delay: {
|
||||
type: Number,
|
||||
default: 0
|
||||
},
|
||||
lazy: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
disabled: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
loaderDisabled: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
columns: {
|
||||
type: Array,
|
||||
default: null
|
||||
},
|
||||
loading: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
showSpacer: {
|
||||
type: Boolean,
|
||||
default: true
|
||||
},
|
||||
showLoader: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
tabindex: {
|
||||
type: Number,
|
||||
default: 0
|
||||
}
|
||||
},
|
||||
data() {
|
||||
return {
|
||||
first: this.isBoth() ? { rows: 0, cols: 0 } : 0,
|
||||
last: this.isBoth() ? { rows: 0, cols: 0 } : 0,
|
||||
numItemsInViewport: this.isBoth() ? { rows: 0, cols: 0 } : 0,
|
||||
lastScrollPos: this.isBoth() ? { top: 0, left: 0 } : 0,
|
||||
d_numToleratedItems: this.numToleratedItems,
|
||||
d_loading: this.loading,
|
||||
loaderArr: [],
|
||||
spacerStyle: {},
|
||||
contentStyle: {}
|
||||
}
|
||||
},
|
||||
element: null,
|
||||
content: null,
|
||||
lastScrollPos: null,
|
||||
scrollTimeout: null,
|
||||
mounted() {
|
||||
this.init();
|
||||
|
||||
this.lastScrollPos = this.isBoth() ? { top: 0, left: 0 } : 0;
|
||||
},
|
||||
watch: {
|
||||
numToleratedItems(newValue) {
|
||||
this.d_numToleratedItems = newValue;
|
||||
},
|
||||
loading(newValue) {
|
||||
this.d_loading = newValue;
|
||||
},
|
||||
items(newValue, oldValue) {
|
||||
if (!oldValue || oldValue.length !== (newValue || []).length) {
|
||||
this.init();
|
||||
}
|
||||
},
|
||||
orientation() {
|
||||
this.lastScrollPos = this.isBoth() ? { top: 0, left: 0 } : 0;
|
||||
}
|
||||
},
|
||||
methods: {
|
||||
init() {
|
||||
this.setSize();
|
||||
this.calculateOptions();
|
||||
this.setSpacerSize();
|
||||
},
|
||||
isVertical() {
|
||||
return this.orientation === 'vertical';
|
||||
},
|
||||
isHorizontal() {
|
||||
return this.orientation === 'horizontal';
|
||||
},
|
||||
isBoth() {
|
||||
return this.orientation === 'both';
|
||||
},
|
||||
scrollTo(options) {
|
||||
this.element && this.element.scrollTo(options);
|
||||
},
|
||||
scrollToIndex(index, behavior = 'auto') {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const first = this.first;
|
||||
const { numToleratedItems } = this.calculateNumItems();
|
||||
const itemSize = this.itemSize;
|
||||
const calculateFirst = (_index = 0, _numT) => (_index <= _numT ? 0 : _index);
|
||||
const calculateCoord = (_first, _size) => (_first * _size);
|
||||
const scrollTo = (left = 0, top = 0) => this.scrollTo({ left, top, behavior });
|
||||
|
||||
if (both) {
|
||||
const newFirst = { rows: calculateFirst(index[0], numToleratedItems[0]), cols: calculateFirst(index[1], numToleratedItems[1]) };
|
||||
if (newFirst.rows !== first.rows || newFirst.cols !== first.cols) {
|
||||
scrollTo(calculateCoord(newFirst.cols, itemSize[1]), calculateCoord(newFirst.rows, itemSize[0]))
|
||||
}
|
||||
}
|
||||
else {
|
||||
const newFirst = calculateFirst(index, numToleratedItems);
|
||||
if (newFirst !== first) {
|
||||
horizontal ? scrollTo(calculateCoord(newFirst, itemSize), 0) : scrollTo(0, calculateCoord(newFirst, itemSize));
|
||||
}
|
||||
}
|
||||
},
|
||||
scrollInView(index, to, behavior = 'auto') {
|
||||
if (to) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const { first, viewport } = this.getRenderedRange();
|
||||
const scrollTo = (left = 0, top = 0) => this.scrollTo({ left, top, behavior });
|
||||
const isToStart = to === 'to-start';
|
||||
const isToEnd = to === 'to-end';
|
||||
|
||||
if (isToStart) {
|
||||
if (both) {
|
||||
if (viewport.first.rows - first.rows > index[0]) {
|
||||
scrollTo(viewport.first.cols * this.itemSize[1], (viewport.first.rows - 1) * this.itemSize[0]);
|
||||
}
|
||||
else if (viewport.first.cols - first.cols > index[1]) {
|
||||
scrollTo((viewport.first.cols - 1) * this.itemSize[1], viewport.first.rows * this.itemSize[0]);
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (viewport.first - first > index) {
|
||||
const pos = (viewport.first - 1) * this.itemSize;
|
||||
horizontal ? scrollTo(pos, 0) : scrollTo(0, pos);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (isToEnd) {
|
||||
if (both) {
|
||||
if (viewport.last.rows - first.rows <= index[0] + 1) {
|
||||
scrollTo(viewport.first.cols * this.itemSize[1], (viewport.first.rows + 1) * this.itemSize[0]);
|
||||
}
|
||||
else if (viewport.last.cols - first.cols <= index[1] + 1) {
|
||||
scrollTo((viewport.first.cols + 1) * this.itemSize[1], viewport.first.rows * this.itemSize[0]);
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (viewport.last - first <= index + 1) {
|
||||
const pos = (viewport.first + 1) * this.itemSize;
|
||||
horizontal ? scrollTo(pos, 0) : scrollTo(0, pos);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
this.scrollToIndex(index, behavior);
|
||||
}
|
||||
},
|
||||
getRenderedRange() {
|
||||
const calculateFirstInViewport = (_pos, _size) => Math.floor(_pos / (_size || _pos));
|
||||
|
||||
let firstInViewport = this.first;
|
||||
let lastInViewport = 0;
|
||||
|
||||
if (this.element) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const scrollTop = this.element.scrollTop;
|
||||
const scrollLeft = this.element.scrollLeft;
|
||||
|
||||
if (both) {
|
||||
firstInViewport = { rows: calculateFirstInViewport(scrollTop, this.itemSize[0]), cols: calculateFirstInViewport(scrollLeft, this.itemSize[1]) };
|
||||
lastInViewport = { rows: firstInViewport.rows + this.numItemsInViewport.rows, cols: firstInViewport.cols + this.numItemsInViewport.cols };
|
||||
}
|
||||
else {
|
||||
const scrollPos = horizontal ? scrollLeft : scrollTop;
|
||||
firstInViewport = calculateFirstInViewport(scrollPos, this.itemSize);
|
||||
lastInViewport = firstInViewport + this.numItemsInViewport;
|
||||
}
|
||||
}
|
||||
|
||||
return {
|
||||
first: this.first,
|
||||
last: this.last,
|
||||
viewport: {
|
||||
first: firstInViewport,
|
||||
last: lastInViewport
|
||||
}
|
||||
};
|
||||
},
|
||||
calculateNumItems() {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const itemSize = this.itemSize;
|
||||
const contentPos = this.getContentPosition();
|
||||
const contentWidth = this.element ? this.element.offsetWidth - contentPos.left : 0;
|
||||
const contentHeight = this.element ? this.element.offsetHeight - contentPos.top : 0;
|
||||
const calculateNumItemsInViewport = (_contentSize, _itemSize) => Math.ceil(_contentSize / (_itemSize || _contentSize));
|
||||
const calculateNumToleratedItems = (_numItems) => Math.ceil(_numItems / 2);
|
||||
const numItemsInViewport = both ?
|
||||
{ rows: calculateNumItemsInViewport(contentHeight, itemSize[0]), cols: calculateNumItemsInViewport(contentWidth, itemSize[1]) } :
|
||||
calculateNumItemsInViewport((horizontal ? contentWidth : contentHeight), itemSize);
|
||||
|
||||
const numToleratedItems = this.d_numToleratedItems || (both ?
|
||||
[calculateNumToleratedItems(numItemsInViewport.rows), calculateNumToleratedItems(numItemsInViewport.cols)] :
|
||||
calculateNumToleratedItems(numItemsInViewport));
|
||||
|
||||
return { numItemsInViewport, numToleratedItems };
|
||||
},
|
||||
calculateOptions() {
|
||||
const both = this.isBoth();
|
||||
const first = this.first;
|
||||
const { numItemsInViewport, numToleratedItems } = this.calculateNumItems();
|
||||
const calculateLast = (_first, _num, _numT, _isCols) => this.getLast(_first + _num + ((_first < _numT ? 2 : 3) * _numT), _isCols);
|
||||
const last = both ?
|
||||
{ rows: calculateLast(first.rows, numItemsInViewport.rows, numToleratedItems[0]), cols: calculateLast(first.cols, numItemsInViewport.cols, numToleratedItems[1], true) } :
|
||||
calculateLast(first, numItemsInViewport, numToleratedItems);
|
||||
|
||||
this.last = last;
|
||||
this.numItemsInViewport = numItemsInViewport;
|
||||
this.d_numToleratedItems = numToleratedItems;
|
||||
this.$emit('update:numToleratedItems', this.d_numToleratedItems);
|
||||
|
||||
if (this.showLoader) {
|
||||
this.loaderArr = both ?
|
||||
Array.from({ length: numItemsInViewport.rows }).map(() => Array.from({ length: numItemsInViewport.cols })) :
|
||||
Array.from({ length: numItemsInViewport });
|
||||
}
|
||||
|
||||
if (this.lazy) {
|
||||
this.$emit('lazy-load', { first, last });
|
||||
}
|
||||
},
|
||||
getLast(last = 0, isCols) {
|
||||
if (this.items) {
|
||||
return Math.min((isCols ? (this.columns || this.items[0]).length : this.items.length), last);
|
||||
}
|
||||
|
||||
return 0;
|
||||
},
|
||||
getContentPosition() {
|
||||
if (this.content) {
|
||||
const style = getComputedStyle(this.content);
|
||||
const left = parseInt(style.paddingLeft, 10) + Math.max(parseInt(style.left, 10), 0);
|
||||
const right = parseInt(style.paddingRight, 10) + Math.max(parseInt(style.right, 10), 0);
|
||||
const top = parseInt(style.paddingTop, 10) + Math.max(parseInt(style.top, 10), 0);
|
||||
const bottom = parseInt(style.paddingBottom, 10) + Math.max(parseInt(style.bottom, 10), 0);
|
||||
|
||||
return { left, right, top, bottom, x: left + right, y: top + bottom };
|
||||
}
|
||||
|
||||
return { left: 0, right: 0, top: 0, bottom: 0, x: 0, y: 0 };
|
||||
},
|
||||
setSize() {
|
||||
if (this.element) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const parentElement = this.element.parentElement;
|
||||
const width = this.scrollWidth || `${(this.element.offsetWidth || parentElement.offsetWidth)}px`;
|
||||
const height = this.scrollHeight || `${(this.element.offsetHeight || parentElement.offsetHeight)}px`;
|
||||
const setProp = (_name, _value) => this.element.style[_name] = _value;
|
||||
|
||||
if (both || horizontal) {
|
||||
setProp('height', height);
|
||||
setProp('width', width);
|
||||
}
|
||||
else {
|
||||
setProp('height', height);
|
||||
}
|
||||
}
|
||||
},
|
||||
setSpacerSize() {
|
||||
const items = this.items;
|
||||
|
||||
if (items) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const contentPos = this.getContentPosition();
|
||||
const setProp = (_name, _value, _size, _cpos = 0) => this.spacerStyle = { ...this.spacerStyle, ...{ [`${_name}`]: (((_value || []).length * _size) + _cpos) + 'px' } };
|
||||
|
||||
if (both) {
|
||||
setProp('height', items, this.itemSize[0], contentPos.y);
|
||||
setProp('width', (this.columns || items[1]), this.itemSize[1], contentPos.x);
|
||||
}
|
||||
else {
|
||||
horizontal ? setProp('width', (this.columns || items), this.itemSize, contentPos.x) : setProp('height', items, this.itemSize, contentPos.y);
|
||||
}
|
||||
}
|
||||
},
|
||||
setContentPosition(pos) {
|
||||
if (this.content) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const first = pos ? pos.first : this.first;
|
||||
const calculateTranslateVal = (_first, _size) => (_first * _size);
|
||||
const setTransform = (_x = 0, _y = 0) => {
|
||||
this.contentStyle = { ...this.contentStyle, ...{ transform: `translate3d(${_x}px, ${_y}px, 0)` } };
|
||||
};
|
||||
|
||||
if (both) {
|
||||
setTransform(calculateTranslateVal(first.cols, this.itemSize[1]), calculateTranslateVal(first.rows, this.itemSize[0]));
|
||||
}
|
||||
else {
|
||||
const translateVal = calculateTranslateVal(first, this.itemSize);
|
||||
horizontal ? setTransform(translateVal, 0) : setTransform(0, translateVal);
|
||||
}
|
||||
}
|
||||
},
|
||||
onScrollPositionChange(event) {
|
||||
const target = event.target;
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const contentPos = this.getContentPosition();
|
||||
const calculateScrollPos = (_pos, _cpos) => _pos ? (_pos > _cpos ? _pos - _cpos : _pos) : 0;
|
||||
const calculateCurrentIndex = (_pos, _size) => Math.floor(_pos / (_size || _pos));
|
||||
const calculateTriggerIndex = (_currentIndex, _first, _last, _num, _numT, _isScrollDownOrRight) => {
|
||||
return (_currentIndex <= _numT ? _numT : (_isScrollDownOrRight ? (_last - _num - _numT) : (_first + _numT - 1)))
|
||||
};
|
||||
const calculateFirst = (_currentIndex, _triggerIndex, _first, _last, _num, _numT, _isScrollDownOrRight) => {
|
||||
if (_currentIndex <= _numT)
|
||||
return 0;
|
||||
else
|
||||
return Math.max(0, _isScrollDownOrRight ?
|
||||
(_currentIndex < _triggerIndex ? _first : _currentIndex - _numT) :
|
||||
(_currentIndex > _triggerIndex ? _first : _currentIndex - (2 * _numT)));
|
||||
};
|
||||
const calculateLast = (_currentIndex, _first, _last, _num, _numT, _isCols) => {
|
||||
let lastValue = _first + _num + (2 * _numT);
|
||||
|
||||
if (_currentIndex >= _numT) {
|
||||
lastValue += (_numT + 1);
|
||||
}
|
||||
|
||||
return this.getLast(lastValue, _isCols);
|
||||
};
|
||||
|
||||
const scrollTop = calculateScrollPos(target.scrollTop, contentPos.top);
|
||||
const scrollLeft = calculateScrollPos(target.scrollLeft, contentPos.left);
|
||||
|
||||
let newFirst = both ? { rows: 0, cols: 0 } : 0;
|
||||
let newLast = this.last;
|
||||
let isRangeChanged = false;
|
||||
let newScrollPos = this.lastScrollPos;
|
||||
|
||||
if (both) {
|
||||
const isScrollDown = this.lastScrollPos.top <= scrollTop;
|
||||
const isScrollRight = this.lastScrollPos.left <= scrollLeft;
|
||||
const currentIndex = { rows: calculateCurrentIndex(scrollTop, this.itemSize[0]), cols: calculateCurrentIndex(scrollLeft, this.itemSize[1]) };
|
||||
const triggerIndex = {
|
||||
rows: calculateTriggerIndex(currentIndex.rows, this.first.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0], isScrollDown),
|
||||
cols: calculateTriggerIndex(currentIndex.cols, this.first.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], isScrollRight)
|
||||
};
|
||||
|
||||
newFirst = {
|
||||
rows: calculateFirst(currentIndex.rows, triggerIndex.rows, this.first.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0], isScrollDown),
|
||||
cols: calculateFirst(currentIndex.cols, triggerIndex.cols, this.first.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], isScrollRight)
|
||||
};
|
||||
newLast = {
|
||||
rows: calculateLast(currentIndex.rows, newFirst.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0]),
|
||||
cols: calculateLast(currentIndex.cols, newFirst.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], true)
|
||||
};
|
||||
|
||||
isRangeChanged = (newFirst.rows !== this.first.rows || newLast.rows !== this.last.rows) || (newFirst.cols !== this.first.cols || newLast.cols !== this.last.cols);
|
||||
newScrollPos = { top: scrollTop, left: scrollLeft };
|
||||
}
|
||||
else {
|
||||
const scrollPos = horizontal ? scrollLeft : scrollTop;
|
||||
const isScrollDownOrRight = this.lastScrollPos <= scrollPos;
|
||||
const currentIndex = calculateCurrentIndex(scrollPos, this.itemSize);
|
||||
const triggerIndex = calculateTriggerIndex(currentIndex, this.first, this.last, this.numItemsInViewport, this.d_numToleratedItems, isScrollDownOrRight);
|
||||
|
||||
newFirst = calculateFirst(currentIndex, triggerIndex, this.first, this.last, this.numItemsInViewport, this.d_numToleratedItems, isScrollDownOrRight);
|
||||
newLast = calculateLast(currentIndex, newFirst, this.last, this.numItemsInViewport, this.d_numToleratedItems);
|
||||
isRangeChanged = newFirst !== this.first || newLast !== this.last;
|
||||
newScrollPos = scrollPos;
|
||||
}
|
||||
|
||||
return {
|
||||
first: newFirst,
|
||||
last: newLast,
|
||||
isRangeChanged,
|
||||
scrollPos: newScrollPos
|
||||
}
|
||||
},
|
||||
onScrollChange(event) {
|
||||
const { first, last, isRangeChanged, scrollPos } = this.onScrollPositionChange(event);
|
||||
|
||||
if (isRangeChanged) {
|
||||
const newState = { first, last };
|
||||
|
||||
this.setContentPosition(newState);
|
||||
|
||||
this.first = first;
|
||||
this.last = last;
|
||||
this.lastScrollPos = scrollPos;
|
||||
|
||||
this.$emit('scroll-index-change', newState);
|
||||
|
||||
if (this.lazy) {
|
||||
this.$emit('lazy-load', newState);
|
||||
}
|
||||
}
|
||||
},
|
||||
onScroll(event) {
|
||||
this.$emit('scroll', event);
|
||||
|
||||
if (this.delay) {
|
||||
if (this.scrollTimeout) {
|
||||
clearTimeout(this.scrollTimeout);
|
||||
}
|
||||
|
||||
if (!this.d_loading && this.showLoader) {
|
||||
const { isRangeChanged: changed } = this.onScrollPositionChange(event);
|
||||
changed && (this.d_loading = true);
|
||||
}
|
||||
|
||||
this.scrollTimeout = setTimeout(() => {
|
||||
this.onScrollChange(event);
|
||||
|
||||
if (this.d_loading && this.showLoader && !this.lazy) {
|
||||
this.d_loading = false;
|
||||
}
|
||||
}, this.delay);
|
||||
}
|
||||
else {
|
||||
this.onScrollChange(event);
|
||||
}
|
||||
},
|
||||
getOptions(renderedIndex) {
|
||||
const count = (this.items || []).length;
|
||||
const index = this.isBoth() ? this.first.rows + renderedIndex : this.first + renderedIndex;
|
||||
return {
|
||||
index,
|
||||
count,
|
||||
first: index === 0,
|
||||
last: index === (count - 1),
|
||||
even: index % 2 === 0,
|
||||
odd: index % 2 !== 0
|
||||
};
|
||||
},
|
||||
getLoaderOptions(index, extOptions) {
|
||||
let count = this.loaderArr.length;
|
||||
return {
|
||||
index,
|
||||
count,
|
||||
first: index === 0,
|
||||
last: index === (count - 1),
|
||||
even: index % 2 === 0,
|
||||
odd: index % 2 !== 0,
|
||||
...extOptions
|
||||
}
|
||||
},
|
||||
elementRef(el) {
|
||||
this.element = el;
|
||||
},
|
||||
contentRef(el) {
|
||||
this.content = el;
|
||||
}
|
||||
},
|
||||
computed: {
|
||||
containerClass() {
|
||||
return ['p-virtualscroller', {
|
||||
'p-both-scroll': this.isBoth(),
|
||||
'p-horizontal-scroll': this.isHorizontal()
|
||||
}, this.class];
|
||||
},
|
||||
contentClass() {
|
||||
return ['p-virtualscroller-content', {
|
||||
'p-virtualscroller-loading': this.d_loading
|
||||
}];
|
||||
},
|
||||
loaderClass() {
|
||||
return ['p-virtualscroller-loader', {
|
||||
'p-component-overlay': !this.$slots.loader
|
||||
}];
|
||||
},
|
||||
loadedItems() {
|
||||
const items = this.items;
|
||||
if (items && !this.d_loading) {
|
||||
if (this.isBoth()) {
|
||||
return items.slice(this.first.rows, this.last.rows).map(item => this.columns ? item : item.slice(this.first.cols, this.last.cols));
|
||||
}
|
||||
else if (this.isHorizontal() && this.columns)
|
||||
return items;
|
||||
else
|
||||
return items.slice(this.first, this.last);
|
||||
}
|
||||
|
||||
return [];
|
||||
},
|
||||
loadedRows() {
|
||||
return this.d_loading ? (this.loaderDisabled ? this.loaderArr : []) : this.loadedItems;
|
||||
},
|
||||
loadedColumns() {
|
||||
if (this.columns) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
|
||||
if (both || horizontal) {
|
||||
return this.d_loading && this.loaderDisabled ?
|
||||
(both ? this.loaderArr[0] : this.loaderArr):
|
||||
this.columns.slice((both ? this.first.cols : this.first), (both ? this.last.cols : this.last));
|
||||
}
|
||||
}
|
||||
|
||||
return this.columns;
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.p-virtualscroller {
|
||||
position: relative;
|
||||
overflow: auto;
|
||||
contain: strict;
|
||||
transform: translateZ(0);
|
||||
will-change: scroll-position;
|
||||
outline: 0 none;
|
||||
}
|
||||
|
||||
.p-virtualscroller-content {
|
||||
position: absolute;
|
||||
top: 0;
|
||||
left: 0;
|
||||
contain: content;
|
||||
min-height: 100%;
|
||||
min-width: 100%;
|
||||
will-change: transform;
|
||||
}
|
||||
|
||||
.p-virtualscroller-spacer {
|
||||
position: absolute;
|
||||
top: 0;
|
||||
left: 0;
|
||||
height: 1px;
|
||||
width: 1px;
|
||||
transform-origin: 0 0;
|
||||
pointer-events: none;
|
||||
}
|
||||
|
||||
.p-virtualscroller .p-virtualscroller-loader {
|
||||
position: sticky;
|
||||
top: 0;
|
||||
left: 0;
|
||||
width: 100%;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
.p-virtualscroller-loader.p-component-overlay {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
}
|
||||
</style>
|
||||
Loading…
Add table
Add a link
Reference in a new issue