Initial implementation.

This commit is contained in:
trading_peter 2022-06-17 16:13:55 +02:00
parent f16e0cd8b5
commit 8b7facdc64
8 changed files with 1118 additions and 9 deletions

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@ -1 +1 @@
# tp-element
# tp-table

68
column-resizer.js Normal file
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export default class ColumResizer {
constructor(wrap, handleSelector) {
this._handleSelector = handleSelector;
this._mouseDown = this._mouseDown.bind(this);
this._dragging = this._dragging.bind(this);
this._draggingEnd = this._draggingEnd.bind(this);
this._trackingStarted = false;
// Amount of pixels the handle must be moved before its registered as a tracking gesture.
this.threshold = 5;
wrap.addEventListener('mousedown', this._mouseDown);
}
_mouseDown(e) {
const handle = e.composedPath().find(node => node.matches && node.matches(this._handleSelector));
if (!handle) return;
this._cHandle = handle;
this._startX = e.pageX;
this._watchDrag();
}
_watchDrag() {
window.addEventListener('mousemove', this._dragging);
window.addEventListener('mouseup', this._draggingEnd);
}
_stopWatchDrag() {
window.removeEventListener('mousemove', this._dragging);
window.removeEventListener('mouseup', this._draggingEnd);
}
_dragging(e) {
this._dx = e.pageX - this._startX;
if (this._trackingStarted === false && Math.abs(this._dx) >= this.threshold) {
this._trackingStarted = true;
this._clearSelection();
this._cHandle.dispatchEvent(new CustomEvent('track', { detail: { state: 'start', dx: this._dx }, bubbles: true, composed: true }));
}
if (this._trackingStarted === true) {
this._cHandle.dispatchEvent(new CustomEvent('track', { detail: { state: 'track', dx: this._dx }, bubbles: true, composed: true }));
}
}
_draggingEnd(e) {
this._dx = e.pageX - this._startX;
this._trackingStarted = false;
this._cHandle.dispatchEvent(new CustomEvent('track', { detail: { state: 'end', dx: this._dx }, bubbles: true, composed: true }));
this._stopWatchDrag();
this._cHandle = null;
this._startX = 0;
this._clearSelection();
}
_clearSelection() {
const sel = window.getSelection ? window.getSelection() : document.selection;
if (sel) {
if (sel.removeAllRanges) {
sel.removeAllRanges();
} else if (sel.empty) {
sel.empty();
}
}
}
}

235
package-lock.json generated Normal file
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{
"name": "@tp/tp-table",
"version": "1.0.0",
"lockfileVersion": 2,
"requires": true,
"packages": {
"": {
"name": "@tp/tp-table",
"version": "1.0.0",
"license": "Apache-2.0",
"dependencies": {
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"@tp/helpers": "^1.1.3",
"@tp/tp-checkbox": "^1.0.4",
"@tp/tp-icon": "^1.0.1",
"@tp/tp-scroll-threshold": "^1.0.0",
"lit": "^2.2.6"
}
},
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}
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}

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@ -1,18 +1,23 @@
{
"name": "@tp/tp-element",
"version": "0.0.1",
"name": "@tp/tp-table",
"version": "1.0.0",
"description": "",
"main": "tp-element.js",
"main": "tp-table.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"repository": {
"type": "git",
"url": "https://gitea.codeblob.work/tp-elements/tp-element.git"
"url": "https://gitea.codeblob.work/tp-elements/tp-table.git"
},
"author": "trading_peter",
"license": "Apache-2.0",
"dependencies": {
"lit": "^2.2.0"
"@lit-labs/virtualizer": "^0.7.0",
"@tp/helpers": "^1.1.3",
"@tp/tp-checkbox": "^1.0.4",
"@tp/tp-icon": "^1.0.1",
"@tp/tp-scroll-threshold": "^1.0.0",
"lit": "^2.2.6"
}
}

226
pagination.js Normal file
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@ -0,0 +1,226 @@
/**
@license
Copyright (c) 2022 trading_peter
This program is available under Apache License Version 2.0
*/
import { Debouncer } from '@polymer/polymer/lib/utils/debounce.js';
import { Helper } from '@era-core/era-mixins/era-helper-mixin.js';
import { dedupingMixin } from '@polymer/polymer/lib/utils/mixin.js';
import { timeOut } from '@polymer/polymer/lib/utils/async.js';
/**
* # ListLoader
*
* Methods to load list contents page by page.
*
* @polymerBehavior ListLoader
*/
export const Pagination = dedupingMixin(function(superClass) {
return class extends Helper(superClass) {
static get properties() {
return {
_entries: { type: Array },
_entriesSet: { type: Object },
_page: { type: Number },
_filter: { type: String },
_filterPage: { type: Number },
_limit: { type: Number }
};
}
constructor() {
super();
this._entries = [];
this._entriesSet = new Set();
this._page = 1;
this._filterPage = 1;
this._limit = 350;
}
_fetch(query, cb) {
// Override
}
_isInFlight() {
// Override
}
get _hasFilter() {
return typeof this._filter === 'string' && this._filter.length > 0;
}
_reloadList() {
this._resetList();
this.__currentPage = 0;
this._lastPage = false;
this._listStateChanged();
}
_listStateChanged() {
if (this._hasFilter) {
this._fetchFiltered();
} else {
this._fetchPage();
}
}
_scrollThresholdTriggered(e) {
if (this.active && this._listOverflows()) {
this.__list = e.composedPath()[0].scrollTarget;
this.__listScrollOffset = this.__list.scrollTop;
if (this._hasFilter) {
this._filterPage++;
this._fetchFiltered();
} else {
this._page++;
this._fetchPage();
}
}
}
_resetList() {
if (typeof this.setProperties === 'function') {
this.setProperties({ _page: 1, _filterPage: 1, _entries: [] });
} else {
this._page = 1;
this._filterPage = 1;
this._entries = [];
}
}
_shouldFetch() {
if (this._page === undefined || this._limit === undefined) return false;
const pageChanged = this._page !== this.__currentPage;
let optionsChanged = false;
optionsChanged = JSON.stringify(this._statusFilter) !== JSON.stringify(this.__currentStatusFilter) || optionsChanged;
optionsChanged = JSON.stringify(this._sorting) !== JSON.stringify(this.__currentSorting) || optionsChanged;
this.__currentStatusFilter = this._statusFilter;
this.__currentSorting = this._sorting;
if (optionsChanged === true) {
this._resetList();
}
if ((pageChanged === false || this._lastPage || this._isInFlight()) && optionsChanged === false) return false;
return true;
}
_fetchPage() {
this._filterDebouncer = Debouncer.debounce(
this._filterDebouncer,
timeOut.after(20),
() => {
if (this._shouldFetch() === false) return;
this._fetch({ page: this._page, limit: this._limit, options: { statusFilter: this._statusFilter, sorting: this._sorting } }, (docs, pages) => {
if (this._page === 1) {
this._entriesSet = new Set();
}
docs = docs.filter(doc => this._entriesSet.has(doc._id) === false);
docs.forEach(doc => this._entriesSet.add(doc._id));
if (this._page === 1) {
this._entries = docs;
} else {
this._entries = this._entries.concat(docs);
}
// Restore scrolling position in the list.
if (this.__list !== undefined) {
this.__list.scrollTop = this.__listScrollOffset || 0;
}
this.__currentPage = this._page;
// Check if we reached the last page.
this._lastPage = pages <= this._page;
// Clear scroll threshold so the next page can be loaded.
this.clearTriggers();
this.__fillList();
});
}
);
}
_fetchFiltered() {
this._filterDebouncer = Debouncer.debounce(
this._filterDebouncer,
timeOut.after(300),
() => {
if (!this._hasFilter) {
this._lastPage = false;
this.__currentPage = false;
this._lastFilter = null;
this._page = 1;
this._filterPage = 1;
this.__listScrollOffset = 0;
this._fetchPage();
return;
}
if (this._shouldFetch() === false && this._lastPage === true && this._filter === this._lastFilter) return;
if (this._filter !== this._lastFilter) {
this._filterPage = 1;
}
this._lastFilter = this._filter;
this._fetch({ filter: this._filter, page: this._filterPage, limit: this._limit, options: {
statusFilter: this._statusFilter,
sorting: this._sorting
} }, (result, resp) => {
if (resp && resp.statusCode === 200) {
if (this._filterPage === 1) {
this._entries = result.entries.map(entry => entry.doc);
} else {
this._entries = this._entries.concat(result.entries.map(entry => entry.doc));
}
// Restore scrolling position in the list.
if (this.__list !== undefined) {
this.__list.scrollTop = this.__listScrollOffset || 0;
}
// Check if we reached the last page.
this._lastPage = result.pages <= this._filterPage || result.pages === 0;
// Clear scroll threshold so the next page can be loaded.
this.clearTriggers();
this.__fillList();
}
});
}
);
}
// Load pages until the list fills the screen.
// We check the list height after next render to see if the list already fills the screen.
// If not, load the next page.
// This needs to be triggered async so that the current `_fetchPage` request
// is finished and no longer considered "in flight".
__fillList() {
if (!this._lastPage && !this.listOverflows()) {
setTimeout(() => {
if (this._hasFilter) {
this._filterPage++;
this._fetchFiltered();
} else {
this._page++;
this._fetchPage();
}
});
}
}
};
});

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tp-table-item.js Normal file
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/**
@license
Copyright (c) 2021 EDV Wasmeier
*/
import '@tp/tp-checkbox/tp-checkbox.js';
import { LitElement, html, css } from 'lit';
import { DomQuery } from '@tp/helpers/dom-query.js';
/**
# ef-base-table-item
## Example
```html
<ef-base-table-item></ef-base-table-item>
```
*/
const mixins = [
DomQuery
];
/* @litElement */
const BaseElement = mixins.reduce((baseClass, mixin) => {
return mixin(baseClass);
}, LitElement);
class TpTableItem extends BaseElement {
static get styles() {
return [
css`
:host {
display: block;
padding: 0;
}
.wrap {
display: grid;
grid-template-columns: 0.5fr 3fr 0.5fr 0.5fr 0.5fr; /* Overridden by javascript */
align-items: center;
}
[part="cell"] {
align-self: stretch;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
padding: 10px 20px;
border-right: solid 1px #c1c1c1;
}
.wrap > div.chk {
border-right: none;
}
`
];
}
render() {
const { columns, item } = this;
return html`
<div id="grid" class="wrap" part="row">
${this.selectable ? html`
<div class="chk">
<tp-checkbox id="selectionChk" @click=${this._updateSelectionState}></tp-checkbox>
</div>
` : null}
${Array.isArray(columns) ? columns.map(column => {
if (column.visible !== true && column.required !== true) return;
return this.renderColumn(column, item) || null;
}) : null
}
</div>
`;
}
static get properties() {
return {
index: { type: Array },
item: { type: Object },
columns: { type: Array },
selectable: { type: Boolean },
};
}
renderColumn(column, item) {
return html`<div part="cell">${item[column.name]}</div>`;
}
async updated(changes) {
if (changes.has('item') && this.selectable) {
this.$.selectionChk.checked = Boolean(this.item.__selected__);
}
if (changes.has('columns') && Array.isArray(this.columns)) {
let colWidths = this.columns.filter(col => col.required || col.visible).map(col => col.width).join(' ');
if (this.selectable) {
colWidths = '40px ' + colWidths;
}
this.$grid.style.gridTemplateColumns = colWidths;
}
if (changes.has('index')) {
if (this.index % 2 === 0) {
this.part.add('odd');
} else {
this.part.remove('odd');
}
}
}
get $grid() {
if (this.__$grid) {
return this.__$grid;
}
this.__$grid = this.shadowRoot.getElementById('grid');
return this.__$grid;
}
_updateSelectionState(e) {
const target = e.target;
setTimeout(() => {
this.dispatchEvent(new CustomEvent('selection-changed', { detail: { item: this.item, selected: target.checked }, bubbles: true, composed: true }));
}, 0);
}
}
window.customElements.define('tp-table-item', TpTableItem);
export default TpTableItem

439
tp-table.js Normal file
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@ -0,0 +1,439 @@
/**
@license
Copyright (c) 2022 trading_peter
This program is available under Apache License Version 2.0
*/
import '@tp/tp-scroll-threshold/tp-scroll-threshold.js';
import '@lit-labs/virtualizer';
import '@tp/tp-icon/tp-icon.js';
import '@tp/tp-checkbox/tp-checkbox.js';
import './tp-table-item.js';
import { DomQuery } from '@tp/helpers/dom-query.js';
import { closest } from '@tp/helpers/closest.js';
import ColumResizer from './column-resizer.js';
import { LitElement, html, css, svg } from 'lit';
export class TpTable extends DomQuery(LitElement) {
static get styles() {
return [
css`
:host {
display: block;
padding: 20px;
position: relative;
}
[hidden] {
display: none;
}
.wrap {
overflow-y: auto;
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
display: flex;
flex-direction: column;
}
.list {
position: relative;
flex: 1;
}
#tableHeader {
display: grid;
overflow-x: hidden;
}
#virtualList,
.empty-message {
position: absolute !important;
left: 0;
right: 0;
top: 0;
bottom: 0;
}
#virtualList {
height: auto;
}
.empty-message {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
a.sort-link,
a.no-sort-link {
text-decoration: none;
font-weight: bold;
position: relative;
border-right: solid 1px #c1c1c1;
padding: 10px 20px 10px 20px;
display: flex;
flex-direction: row;
overflow: hidden;
cursor: pointer;
user-select: none;
}
a.sort-link:hover,
a.no-sort-link:hover {
border-right: solid 1px #c1c1c1;
}
a.sort-link tp-icon {
position: absolute;
left: 0;
--tp-icon-width: 18px;
--tp-icon-height: 18px;
}
div.col-label {
flex: 1;
text-overflow: ellipsis;
white-space: nowrap;
}
.width-handle {
position: absolute;
z-index: 1;
top: 0;
right: -2px;
cursor: col-resize;
width: 6px;
height: 100%;
}
.width-handle > div {
margin: auto;
width: 2px;
height: 100%;
background: transparent;
}
#tableHeader:not(.col-dragging) a.sort-link .width-handle:hover > div {
background: var(--pc-blue);
}
a.sort-link .width-handle.dragging {
position: fixed;
height: 300px;
z-index: 100;
border-style: none;
width: 3px;
background: linear-gradient(180deg, rgba(59, 164, 240, 1), rgba(59, 164, 240, 0));
}
.select-col {
padding: 0px 20px 10px;
}
lit-virtualizer {
overflow-x: hidden;
}
lit-virtualizer::-webkit-scrollbar {
width: 12px;
}
lit-virtualizer::-webkit-scrollbar-track {
background: var(--scrollbar-track);
}
lit-virtualizer::-webkit-scrollbar-thumb {
background-color: var(--scrollbar-thumb);
outline: none;
border-radius: var(--scrollbar-thumb-border-radius, 4px);
}
[item]:not(.odd) {
background: var(--table-bg-1);
}
[item].odd {
background: var(--table-bg-2);
}
[item]:hover {
background: var(--table-row-hl);
--list-columns-h-borders: var(--list-columns-h-borders-hover);
}
`
];
}
render() {
const columns = this.columns || [];
const items = this.items || [];
return html`
<div class="wrap">
<div id="tableHeader" part="header" class="list-headline" @track=${this._colResizeTracked}>
${this.selectable ? html`
<div class="select-col"><tp-checkbox @checked-changed=${e => this._checkedChanged(e)}></tp-checkbox></div>
` : null}
${columns.map(column => this.renderColumnHeader(column))}
</div>
<div class="list">
${this._emptyMessage}
<lit-virtualizer id="virtualList" part="list" @scroll=${this._onScroll} scroller .items=${items} .renderItem=${(item, idx) => this.renderItem(item, idx, columns)}></lit-virtualizer>
</div>
<tp-scroll-threshold id="threshold" lowerThreshold="40"></tp-scroll-threshold>
</div>
`;
}
renderColumnHeader(column) {
if (column.visible !== true && column.required !== true) return null;
const { name, width, label, sortable } = column;
const sorting = this.sorting || {};
const isSortedBy = sorting.column === name;
const sortDirection = isSortedBy ? sorting.direction : 'desc';
const canSort = sortable !== false;
return html`
<a part="column-label" class="${canSort ? 'sort-link' : 'no-sort-link'}" @click=${() => canSort ? this._sort(column, sortDirection) : null} .type=${name} .width=${width}>
${canSort ? html`
<tp-icon part="sort-icon" .icon=${sortDirection === 'asc' ? TpTable.downIcon : TpTable.upIcon} ?hidden=${!isSortedBy}></tp-icon>
` : null}
<div class="col-label">${label}</div>
<div class="width-handle" part="width-handle"><div part="width-handle-bar"></div></div>
${this.renderColumnHeaderAddons(column)}
</a>
`;
}
renderColumnHeaderAddons(column) {
return null;
}
static get downIcon() {
return svg`<path fill="var(--tp-table-icon-color)" d="M7,10L12,15L17,10H7Z">`;
}
static get upIcon() {
return svg`<path fill="var(--tp-table-icon-color)" d="M7,15L12,10L17,15H7Z">`;
}
renderItem(item, idx, columns) {
return html`
<tp-table-item
exportparts="cell,odd,row"
item
.index=${idx}
.item=${item}
.selectable=${this.selectable}
.columns=${columns}
@selection-changed=${(e) => this._selectionChanged(e)}>
</tp-table-item>
`;
}
static get properties() {
return {
sorting: { type: Object },
selectable: { type: Boolean },
columns: { type: Array },
_selItems: { type: Array },
_visibleColumns: { type: Array },
items: { type: Array },
_advFilters: { type: Array },
_advFilterActive: { type: Boolean },
_advFilterFields: { type: Object },
_filter: { type: String },
_totalCount: { type: Number },
};
}
constructor() {
super();
this._selItems = [];
}
updated(changes) {
if (changes.has('columns')) {
this._updateColumns();
}
}
get _emptyMessage() {
return null;
}
get sortingPath() {
return `${this.dataKey}.sorting`;
}
get statusFilterPath() {
return `${this.dataKey}.filtering.statusFilter`;
}
set filter(val) {
this._advFilterActive = false;
this._filter = this._clone(val);
this.reloadPagedList();
}
set statusFilter(val) {
this._statusFilter = this._clone(val);
this.reloadPagedList();
}
set advancedFilter(val) {
this._advFilterActive = val ? true : false;
this._advFilters = this._clone(val);
this.reloadPagedList();
}
firstUpdated() {
this.shadowRoot.querySelector('tp-scroll-threshold').target = this.shadowRoot.querySelector('lit-virtualizer');
new ColumResizer(this.$.tableHeader, '.width-handle');
}
_onScroll(e) {
this.$.tableHeader.style.paddingRight = (this.$.virtualList.offsetWidth - this.$.virtualList.clientWidth) + 'px';
this.$.tableHeader.scrollLeft = this.$.virtualList.scrollLeft;
}
shouldUpdate(changes) {
if (changes.has('items')) {
this._updateSelEntries();
}
return true;
}
_sort(column, direction) {
if (this._draggedColumn) return;
this.sorting = { column: column.name, direction: direction === 'asc' ? 'desc' : 'asc' };
this.dispatchEvent(new CustomEvent('sorting-changed', { detail: this.sorting, bubbles: true, composed: true }));
}
_updateColumns() {
this.$.tableHeader.style.gridTemplateColumns = this._updateColumnWidths(this.selectable ? [ '40px' ] : []).join(' ');
}
_updateColumnWidths(prepend) {
return [ ...(prepend || []), ...this.columns.filter(col => col.required || col.visible).map(col => col.width) ];
}
_colResizeTracked(e) {
const handle = closest(e.target, '.width-handle');
const data = e.detail;
if (data.state === 'start') {
this._draggedColumn = true;
const rect = handle.getBoundingClientRect();
document.body.style.userSelect = 'none';
handle.style.top = `${rect.top}px`;
handle.style.left = `${rect.left}px`;
handle.style.transform = `translateX(${data.dx}px)`;
handle.classList.add('dragging');
this.$.tableHeader.classList.add('col-dragging');
} else if (data.state === 'end') {
document.body.style.userSelect = '';
handle.classList.remove('dragging');
handle.style.transform = '';
handle.style.top = '';
handle.style.left = '';
this.$.tableHeader.classList.remove('col-dragging');
const colLink = closest(handle, 'a');
const { type, width } = colLink;
const newWidth = (parseInt(width, 10) + data.dx) + 'px';
const colDef = this.columns.find(col => col.name === type);
colDef.width = newWidth;
this.columns = [...this.columns];
setTimeout(() => {
this._draggedColumn = false;
this.dispatchEvent(new CustomEvent('column-width-changed', { detail: this.columns, bubbles: true, composed: true }));
});
} else if (data.state === 'track') {
handle.style.transform = `translateX(${data.dx}px)`;
}
}
clearTriggers() {
if (this.$.threshold) {
this.$.threshold.clearTriggers();
}
}
_listOverflows() {
return this.$.virtualList.scrollHeight > this.$.virtualList.offsetHeight;
}
_checkedChanged(e) {
if (Array.isArray(this.items) === false) return;
if (e.detail.value) {
this._selectAll();
} else {
this._selectNone();
}
this.items = [...this.times];
}
_selectAll() {
this.items.forEach((entry, idx) => {
this.items[idx].__selected__ = true;
});
this._selectionChanged();
}
_selectNone() {
this._items.forEach((entry, idx) => {
this._items[idx].__selected__ = false;
});
this._selectionChanged();
}
_selectionChanged(e) {
if (this.__restoringSelection) return;
if (e !== undefined) {
const item = this._items.find(item => item._id === e.detail.item._id);
item.__selected__ = e.detail.selected;
}
this._selItems = this._items.filter(entry => entry.__selected__ === true);
this.dispatchEvent(new CustomEvent('item-selection-changed', { detail: this._selItems, bubbles: true, composed: true }));
}
_updateSelEntries() {
this._hiddenSelection = 0;
if (!this._items) {
this._selItems = [];
} else {
this._selItems.forEach(sel => {
const idx = this._items.findIndex(entry => entry._id === sel._id);
if (idx > -1) {
// Suppress rebuild of the selected invoices list.
// When we restore the selection on a filtered list of invoices we would loose the selection of hidden onces
// when _selectionChanged is triggered. So we set a flag that the observer is skipped.
this.__restoringSelection = true;
this._items[idx].__selected__ = true;
this.__restoringSelection = false;
} else {
this._hiddenSelection++;
}
});
}
}
}
window.customElements.define('tp-table', TpTable);

View File

@ -6,7 +6,7 @@ This program is available under Apache License Version 2.0
import { LitElement, html, css } from 'lit';
class TpElement extends LitElement {
class TpTextFilter extends LitElement {
static get styles() {
return [
css`
@ -21,7 +21,8 @@ class TpElement extends LitElement {
const { } = this;
return html`
<h1>Test</h1>
<p>No</p>
`;
}
@ -32,4 +33,4 @@ class TpElement extends LitElement {
}
window.customElements.define('tp-element', TpElement);
window.customElements.define('tp-text-filter', TpTextFilter);