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bwt-datatable.js
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import { PolymerElement, html } from '../@polymer/polymer';
import '../@polymer/paper-checkbox/paper-checkbox.js';
import '../@polymer/paper-tooltip/paper-tooltip.js';
import '../@polymer/paper-progress/paper-progress.js';
import '../@polymer/iron-media-query/iron-media-query.js';
import '../@polymer/iron-icon/iron-icon.js';
import { mixinBehaviors } from '../@polymer/polymer/lib/legacy/class.js';
import { IronScrollTargetBehavior } from '../@polymer/iron-scroll-target-behavior/iron-scroll-target-behavior.js';
import { IronResizableBehavior } from '../@polymer/iron-resizable-behavior/iron-resizable-behavior.js';
import { dom } from '../@polymer/polymer/lib/legacy/polymer.dom.js';
import './bwt-datatable-column.js';
import './bwt-datatable-edit-dialog.js';
import './datatable-icons.js';
import { CollectionHelpers } from './src/collectionHelpers.js';
'use scrict';
class PaperDatatable extends mixinBehaviors([IronScrollTargetBehavior, IronResizableBehavior], PolymerElement) {
static get template() {
return html`
<style>
:host {
display: block;
@apply --paper-font-common-base;
position: relative;
}
:host([resize-behavior='overflow']) #container{
overflow: auto;
}
:host([resize-behavior='dynamic-columns']) #container{
overflow: auto;
}
:host([resize-behavior='fixed']) table{
table-layout: fixed;
}
:host([resize-behavior='fixed']) th{
overflow: hidden;
text-overflow: ellipsis;
}
:host([resize-behavior='fixed']) td{
overflow: hidden;
}
table{
border-spacing: 0px;
width:100%;
}
tr td, tr th{
border-bottom: 1px solid var(--paper-datatable-divider-color, var(--divider-color));
padding: 6px 28px 6px 28px;
box-sizing: border-box;
@apply --paper-datatable-cell-styles;
}
td{
height: 48px;
}
th{
font-weight: 500;
text-align:left;
white-space: nowrap;
@apply --paper-font-common-base;
-webkit-user-select: none;
-ms-user-select: none;
-moz-user-select: none;
user-select: none;
color: rgba(0,0,0, .54);
font-size:12px;
transition: linear .1s color, padding-left .2s linear;
box-sizing: border-box;
height: 56px;
}
th:not([data-sortable]) iron-icon.sort{
display: none;
}
th[data-sortable] iron-icon.sort {
transition: transform .2s linear, width .2s linear, color .2s linear;
color: rgba(0,0,0, .26);
width: 0px;
@apply --paper-datatable-column-header-sort-icon-hover;
}
th[data-sortable]{
cursor: pointer;
}
th[data-sortable]:not([data-sorted]):hover iron-icon{
}
th[data-sortable][data-sorted], th[data-sortable]:hover{
padding-left: 4px;
color: rgba(0,0,0, .87);
@apply --paper-datatable-column-header-sorted;
}
th[data-sortable][data-sorted] iron-icon, th[data-sortable]:hover iron-icon{
width: 24px;
}
th[data-sortable][data-sorted] iron-icon.sort{
color: rgba(0,0,0, .87);
@apply --paper-datatable-column-header-sorted;
}
th[data-sortable]:not([data-sorted]) iron-icon{
transform: rotate(180deg);
}
th[data-sortable]:not([data-sorted]):not([data-sort-direction='desc']) iron-icon{
transform: rotate(0deg);
}
th[data-sortable][data-sorted]:not([data-sort-direction='desc']) iron-icon{
transform: rotate(180deg);
}
tr td{
cursor: pointer;
}
tr td.bound-cell[data-edit-icon]{
padding-right: 10px;
}
th.column{
@apply --paper-datatable-column-header;
}
tr th span{
vertical-align: middle;
}
td.bound-cell{
font-size: 13px;
color: rgba(0,0,0,.87);
@apply --paper-datatable-cell;
}
td.bound-cell div span{
flex: 1;
}
td.bound-cell iron-icon.editable{
display: none;
}
td.bound-cell div{
display: flex;
align-items:center;
}
td.bound-cell[data-edit-icon] iron-icon.editable{
color: var(--paper-datatable-icon-color, rgba(0,0,0,.54));
width: 18px;
display: inline-block;
padding-left: 7px;
}
td.bound-cell paper-input, td.bound-cell paper-textarea, paper-datatable-edit-dialog paper-input, paper-datatable-edit-dialog paper-textarea{
--paper-input-container-input: {
font-size: 13px;
line-height: 1.4em;
};
}
tr td:first-child, tr th:first-child{
/*change it from 24 to 28 px cause have some error on mobile*/
padding-left: 28px;
padding-right: 0px;
width:56px;
min-width:56px;
}
tr td:nth-of-type(2), tr th:nth-of-type(2){
/*changed it from 10px to 28px because second row have wrong left padding on mobile*/
padding-left: 28px;
}
td:last-of-type, th:last-of-type{
padding-right: 24px;
}
td:last-of-type{
@apply --paper-datatable-cell-last;
}
th:last-of-type{
@apply --paper-datatable-column-header-last;
}
tr[data-selected] td{
background: var(--paper-datatable-row-selection-color, var(--paper-grey-100));
}
tr:hover td{
background: var(--paper-datatable-row-hover-color, var(--paper-grey-200));
}
tbody tr:last-of-type td{
border-bottom:none;
}
tbody td .array-item {
display: inline-block;
@apply --paper-datatable-array-item;
}
tbody td .class-1 {
@apply --paper-datatable-class-1;
}
tbody td .class-2 {
@apply --paper-datatable-class-2;
}
tbody td .class-3 {
@apply --paper-datatable-class-3;
}
tbody td .class-4 {
@apply --paper-datatable-class-4;
}
tbody td .class-5 {
@apply --paper-datatable-class-5;
}
/* progress: */
table tr.progress {
}
table tr.progress th paper-progress{
height: 0px;
transition: linear .2s height;
}
table tr.progress[data-progress] th paper-progress{
height: 3px;
}
table tr.progress th{
padding: 0px;
height: 1px;
border-bottom:0px;
}
table tr.progress th paper-progress{
width: 100%;
}
paper-checkbox{
--paper-checkbox-unchecked-color: var(--paper-datatable-checkbox-border-color, var(--primary-text-color));
--paper-checkbox-checked-color: var(--paper-datatable-checkbox-color, var(--accent-color));
@apply --paper-datatable-checkbox;
}
th paper-checkbox{
--paper-checkbox-unchecked-color: var(--paper-datatable-header-checkbox-border-color, var(--primary-text-color));
--paper-checkbox-checked-color: var(--paper-datatable-header-checkbox-color, var(--accent-color));
@apply --paper-datatable-header-checkbox;
}
.partialSelectionContainer{
width:18px;
height:18px;
position:relative;
display:flex;
align-items:center;
justify-content:center;
}
.partialSelection{
width:6px;
height:2px;
background: var(--paper-datatable-header-checkbox-border-color, rgba(0,0,0,.54));
border-radius:1px;
transition: transform .1s linear;
transform: scale(0) rotate(-45deg);
}
.partialSelection[data-checked]{
transform: scale(1) rotate(0deg);
}
/*CSS for mobile view*/
/* Force table to not be like tables anymore */
table[mobile-view], thead[mobile-view], tbody[mobile-view], th[mobile-view], td[mobile-view], tr[mobile-view] {
display: block;
}
tbody[mobile-view]{
overflow: hidden;
}
/* Hide table headers (but not display: none;, for accessibility) */
thead tr[mobile-view] {
position: absolute;
top: -9999px;
left: -9999px;
}
tr[mobile-view] {
border: 1px solid #ccc;
}
td[mobile-view] {
border: none;
border-bottom:none !important;
position: relative;
padding-right: 26px !important;
text-align: right !important;
height: 36px;
}
td[mobile-view]:last-of-type {
text-align: -webkit-right !Important;
padding-bottom: 45px !important;
}
tr td[mobile-view]:first-child {
margin-left: 12px;
padding-right: 0px;
padding-top: 15px;
width: 100%;
left: -12px;
text-align: left !important;
}
tr[mobile-view]:hover td {
background: none;
}
tr[mobile-view] td[mobile-view] div p.mobileHeader{
font-weight: bold;
}
.fixedToTop {
background: #fff;
position: fixed !important;
box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
top: 0;
z-index: 1;
}
.fixedToTop tr td, .fixedToTop tr th {
border-bottom: 0px;
}
</style>
<iron-media-query query="(max-width: [[responseWidth]])" query-matches="{{mobileView}}"></iron-media-query>
<paper-datatable-edit-dialog id="dialog"></paper-datatable-edit-dialog>
<div id="container">
<table mobile-view$="[[mobileView]]">
<thead >
<tr mobile-view$="[[mobileView]]">
<template is="dom-if" if="[[selectable]]">
<th mobile-view$="[[mobileView]]">
<template is="dom-if" if="[[multiSelection]]">
<div class="partialSelectionContainer">
<div class="partialSelection" data-checked$="[[_partialSelection]]"></div>
<paper-checkbox on-change="toggleAll" checked$="[[_allChecked(selectedKeys.splices, data.*)]]" style="position:absolute;left:0px;top:0px;"></paper-checkbox>
</div>
</template>
</th>
</template>
<template id="columnRepeat" is="dom-repeat" items="[[_columns]]" as="column" on-dom-change="_columnsRendered">
<th class="column" data-sortable$="[[column.sortable]]" data-column="[[column]]" mobile-view$="[[mobileView]]" on-tap="_handleSort" style$="[[column._styleString]]">
<iron-icon icon="datatable:sort-desc-md" class="sort"></iron-icon>
<span id="title">[[column.header]]</span>
<template is="dom-if" if="[[column.tooltip]]">
<paper-tooltip offset="-10" fit-to-visible-bounds>[[column.tooltip]]</paper-tooltip>
</template>
</th>
</template>
</tr>
<tr class="progress" data-progress$="[[progress]]" mobile-view$="[[mobileView]]">
<th colspan$="[[_numberOfColumnsPlusOne(_columns.splices)]]">
<!--<paper-progress indeterminate></paper-progress>-->
</th>
</tr>
<tr hidden$="[[!_noItemsVisible(_rowKeys.splices)]]" mobile-view$="[[mobileView]]">
<th colspan$="[[_numberOfColumnsPlusOne(_columns.splices)]]" style="text-align:center;">
<slot name="no-results"></slot>
</th>
</tr>
</thead>
<tbody mobile-view$="[[mobileView]]">
<template id="rowRepeat" is="dom-repeat" items="[[_rowKeys]]" as="rowKey" on-dom-change="_restructureData">
<!--
duplication due to https://github.com/David-Mulder/paper-datatable/issues/3 ...
-->
<template is="dom-if" if="[[multiSelection]]">
<tr data-key$="[[rowKey]]" mobile-view$="[[mobileView]]" data-selected$="[[_isRowSelected(rowKey, selectedKeys.splices)]]" style$="[[_customRowStyle(rowKey)]]">
<template is="dom-if" if="[[selectable]]">
<td on-tap="_cellTapped" mobile-view$="[[mobileView]]">
<!-- a somewhat specific 'hack' for <paper-datatable-card> :/ -->
<!-- <template is="dom-if" if="{{!_isEqual(rowKey, '__new__')}}"> -->
<paper-checkbox checked$="[[_isRowSelected(rowKey, selectedKeys.splices)]]" on-change="_setSelection"></paper-checkbox>
<!-- </template> -->
</td>
</template>
<template id="cellRepeat" is="dom-repeat" items="[[_columns]]" as="column" on-dom-change="_restructureData">
<td data-empty class="bound-cell" mobile-view$="[[mobileView]]" data-column="[[column]]" data-editable$="[[column.editable]]" data-edit-icon$="[[column.editIcon]]" on-tap="_cellTapped">
<div>
<p class="mobileHeader" hidden$="[[!mobileView]]"></p>
<span></span>
<iron-icon icon="datatable:editable" class="editable"></iron-icon>
</div>
</td>
</template>
</tr>
</template>
<template is="dom-if" if="[[!multiSelection]]">
<tr data-key$="[[rowKey]]" mobile-view$="[[mobileView]]" data-selected$="[[_isRowSelected(rowKey, selectedKey)]]" style$="[[_customRowStyle(rowKey)]]">
<template is="dom-if" if="[[selectable]]">
<td on-tap="_cellTapped" mobile-view$="[[mobileView]]">
<paper-checkbox checked="[[_isRowSelected(rowKey, selectedKey)]]" on-change="_setSelection"></paper-checkbox>
</td>
</template>
<template id="cellRepeat" is="dom-repeat" items="[[_columns]]" as="column" on-dom-change="_restructureData">
<td data-empty class="bound-cell" mobile-view$="[[mobileView]]" data-column="[[column]]" data-editable$="[[column.editable]]" data-edit-icon$="[[column.editIcon]]" on-tap="_cellTapped">
<div>
<p style="font-weight: bold;" hidden$="[[!mobileView]]"></p>
<span></span>
<iron-icon icon="datatable:editable" class="editable"></iron-icon>
</div>
</td>
</template>
</tr>
</template>
</template>
</tbody>
</table>
</div>
`;
}
static get is() {
return 'paper-datatable';
}
// Element properties
static get properties() {
return {
/**
* Read only array of all the `paper-datatable-column`'s
*
* @attribute _columns
* @type Array
*/
_columns: {
type: Array
},
/**
* Array of objects containing the data to be shown in the table.
*
* @attribute data
* @type Array
* @required
*/
data: {
type: Array,
notify: true
},
/**
* Whether to show checkboxes on the left to allow row selection.
*
* @attribute selectable
* @type Boolean
* @default false
*/
selectable: {
type: Boolean
},
/**
* Whether to allow selection of more than one row.
*
* @attribute multiSelection
* @type Boolean
* @default false
*/
multiSelection: {
type: Boolean,
value: false
},
/**
* If `multi-selection` then this contains an array of selected row keys.
*
* @attribute selectedIds
* @type Array
* @default []
*/
selectedKeys: {
type: Array,
notify: true,
value: []
},
/**
* If `multi-selection` is off then this contains the key of the selected row.
*
* @attribute selectedId
* @type Object
*/
selectedKey: {
type: Object,
notify: true
},
/**
* If `multi-selection` is off then this contains the selected row.
*
* @attribute selectedId
* @type Object
*/
selectedItem: {
type: Object,
notify: true,
computed: '_getByKey(selectedKey)'
},
/**
* If `multi-selection` is on then this contains an array of the selected rows.
*
* @attribute selectedId
* @type Object
*/
selectedItems: {
type: Array,
notify: true,
computed: '_getSelectedItems(selectedKeys.splices)'
},
_internalSortEnabled: {
type: Boolean,
value: false
},
_rowKeys: {
type: Array
},
_currentlySortedColumn: {
type: Object
},
_cellInstances: {
type: Object
},
/**
* Whether to show the progress bar. As the progress bar is often not used in standalone
* `<paper-datatable>'s the `<paper-progress>` element isn't included by default and needs to be
* manually imported.
*
* @attribute progress
* @type Boolean
* @default false
*/
progress: {
type: Boolean,
value: false
},
/**
* Overflow, fixed or 'dynamic-columns'
*
* @attribute resizeBehavior
* @type String
* @default 'overflow'
*/
resizeBehavior: {
type: String,
value: 'overflow',
reflectToAttribute: true
},
_partialSelection: {
type: Boolean
},
/**
* The filter attribute can be used to specify a filter which will be applied to the `data`.
* Note that selections should fully ignore filtering, and a filter only affects which data is
* visible.
*
* The function takes three arguments: `item`, `key` and `items` per the JS filter function.
*
* For a demo please see [here](demo/filter.html).
*
* IMPORTANT: This is a property, not a method you should call directly.
*
* @attribute filter
* @type Function
*/
filter: {
type: Function
},
/**
* Response width to show datatable on mobile devices
*
* @attribute responseWidth
* @type String
* @default '767px'
*/
responseWidth: {
type: String,
value: '767px'
},
mobileView: Boolean,
/**
* Fix column header to the top of the page on scroll
*
* @attribute headerFixed
* @type Boolean
* @default false
*/
headerFixed: {
type: Boolean,
reflectToAttribute: true,
value: false
},
_theadDistanseToTop: {
type: Number
}
}
}
// Element observers
static get observers() {
return [
// '_restructureData(data.*, _columns.splices)',
'_setRowKeys(data.splices)',
'_notifyPathOnInstances(data.*)',
'_linkSelectedItem(selectedKey)',
'_linkSelectedItems(selectedKeys.splices)',
'_setPartialSelection(selectedKeys.splices, data.*)'
]
}
// ADDDD
// listeners: {
// 'container.scroll': '_triggerDialogResize',
// 'iron-resize': '_resizeListener'
// },
ready() {
super.ready();
this.set('_columns', []);
this.set('selectedKeys', []);
this._observer = dom(this).observeNodes((info) => {
this._queryAndSetColumns();
});
}
_queryAndSetColumns() {
var columns = this.queryAllEffectiveChildren('paper-datatable-column');
var self = this;
columns.forEach(function (column, index) {
if (!column.beenAttached.state.ready) {
column.parentNodeRef = self;
self.async(function () {
column.beenAttached.ready();
});
column.index = index;
self.listen(column, 'header-changed', '_updateHeaderColumn');
}
});
var inactiveColumns = columns.filter(function (column) { return !column.inactive });
this.set('_columns', inactiveColumns);
this.async(function () {
this._applySortedIndicatorsToDOM();
});
}
_setRowKeys() {
var rowKeys = [];
this._dataKeyCollection = new CollectionHelpers(this.data || []);
(this.data || []).forEach(function (row) {
var key = this._getKeyByItem(row);
if ('filter' in this) {
if (this.filter(row, key, this.data)) {
rowKeys.push(key);
}
} else {
rowKeys.push(key);
}
}.bind(this));
this.set("_rowKeys", rowKeys);
//why again was this necessary?
this._internalSort(this._currentlySortedColumn);
}
/**
* If you have been changing data on the `data` property outside of the official Polymer functions
* calling this function *may* get you the updates you want.
*/
reload() {
this._setRowKeys();
}
/**
* Hardcore reset of the entire element. Sets `data` to `[]` and resets all cells.
*/
reset() {
this.set('data', []);
this._reset();
}
_reset() {
var cells = this.shadowRoot.querySelectorAll('.bound-cell');
Array.prototype.forEach.call(cells, this._resetCell.bind(this));
this.$.rowRepeat.render();
var cellRepeatList = this.shadowRoot.querySelector('#cellRepeat');
Array.prototype.forEach.call(cellRepeatList, function (cr) { return cr.render(); });
}
_resetCell(cell) {
cell.setAttribute('data-empty', true);
cell.removeAttribute('data-row-key');
delete cell.dataColumn;
delete cell.instance;
}
_restructureData() {
this.debounce('restructure data', function () {
var rows = this.shadowRoot.querySelectorAll('tbody tr');
// loop through the rows
for (var rowI = 0; rowI < rows.length; rowI++) {
var row = rows[rowI];
//find the data that belongs with the row
var rowData = this.get(['data', rowI]);
console.log('row data old', rowData);
console.log('row data new', this._getByKey(row.dataset.key));
//prevent errors if row empty
if (!rowData) return;
// var cells = Polymer.dom(row).querySelectorAll('.bound-cell');
var cells = dom(row).querySelectorAll('.bound-cell');
var self = this;
cells.forEach(function (cell, index) {
if (!cell.dataColumn) {
console.log(cell);
}
var isEmpty = cell.hasAttribute('data-empty');
var isWrongRow = cell.getAttribute('data-row-key') !== row.dataset.key;
var isWrongColumn = cell.dataColumn !== cell.dataBoundColumn;
if (cell) {
cell.removeAttribute('data-empty');
var prop = cell.dataColumn.property;
var data = rowData[prop];
cell.setAttribute('data-row-key', row.dataset.key);
cell.dataBoundColumn = cell.dataColumn;
if (cell.dataColumn.cellStyle.length > 0) {
cell.setAttribute('style', cell.dataColumn.cellStyle);
} else {
cell.setAttribute('style', '');
}
if (cell.style['text-align'] == '' && cell.dataColumn.align) {
cell.style['text-align'] = cell.dataColumn.align;
}
//if(cell.style['min-width'] == '' && cell.dataColumn.width){
// cell.style['min-width'] = cell.dataColumn.width;
//}
if (cell.dataColumn.template && !cell.dataColumn.dialog) {
var instance = cell.dataColumn._createCellInstance(
rowData,
row.dataset.key
);
cell.instance = instance;
cell.instanceType = 'inline';
cell.querySelector('p').textContent = self._columns[index].header;
var spanTag = cell.querySelector('span');
spanTag.textContent = '';
spanTag.appendChild(instance.root);
} else {
if (cell.instance)
delete cell.instance;
//added text to span
cell.querySelector('p').textContent = self._columns[index].header;
cell.querySelector('span').textContent = cell.dataColumn._formatValue(data);
//cell.textContent = data;
}
}
});
}
});
}
_notifyPathOnInstances(change) {
if (change.path === 'data') {
//not too happy about this 'hack', but it will have to do for the moment
var cells = dom(this.shadowRoot).querySelectorAll('.bound-cell');
Array.prototype.forEach.call(cells, function (cell) {
cell.setAttribute('data-row-key', '');
});
this._restructureData();
}
var path = change.path.split('.');
if (path.length >= 3) {
var object = path.shift();
var rowKey = path.shift();
var row = this.shadowRoot.querySelector('tbody tr[data-key=\'' + rowKey + '\']');
if (!row) {
console.error('critical failure');
console.log('key', rowKey);
return false;
}
var cells = row.querySelectorAll('td.bound-cell');
for (var i = 0; i < cells.length; i++) {
var cell = cells[i];
var prop = cell.dataColumn.property;
if (prop == path[0]) {
if (cell.instance) {
var localPath = path.slice();
localPath.shift();
var instanceValuePath = ['value'].concat(localPath);
//console.info(cell, "prop column value path", instanceValuePath, "to", change.value);
cell.instance.notifyPath(instanceValuePath, change.value);
}
if (!cell.instance || cell.instanceType == 'dialog') {
cell.querySelector('span').textContent = this._columns[i]._formatValue(this.get([object, rowKey, prop]));
}
}
if (cell.instance) {
var instancePath = ['item'].concat(path);
cell.instance.notifyPath(instancePath, change.value, true);
}
}
}
}
/**
* Triggered by clicking the top left checkmark. If all are checked it will deselect all checked items.
* If some or none are checked it will select all items
*/
toggleAll() {
var triggeredEvent = this._fireCustomEvent(this, "toggle-all", {});
if (triggeredEvent.defaultPrevented) {
var allChecked = this._allChecked();
this.data.forEach(function (item) {
if (allChecked) {
this.deselect(item);
} else {
this.select(item);
}
}.bind(this));
}
}
/**
* Select the specified item. Ignore the `notify` parameter.
*
* @param item
* @param Boolean [notify=false] whether to trigger a `selection-changed` event.
*/
select(item, notify) {
notify = typeof notify === 'undefined' ? true : notify;
var key = this._getKeyByItem(item);
if (this.multiSelection) {
if (this.selectedKeys.indexOf(key) == -1) {
this.push('selectedKeys', key);
}
} else {
this.set('selectedKey', key);
}
if (notify) this._fireCustomEvent(this, "selection-changed", { selected: [key] });
}
/**
* Deselect the specified item. Ignore the `notify` parameter.
*
* @param item
* @param Boolean [notify=false] whether to trigger a `selection-changed` event.
*/
deselect(item, notify) {
notify = typeof notify === 'undefined' ? true : notify;
var key = this._getKeyByItem(item);
if (this.multiSelection) {
var i = this.selectedKeys.indexOf(key);
this.splice('selectedKeys', i, 1);
} else {
this.set('selectedKey', null);
}
if (notify) this._fireCustomEvent(this, "selection-changed", { deselected: [key] });
}
/**
* Deselect all currently selected items. Ignore the `notify` parameter.
*/
deselectAll(notify) {
if (this.multiSelection) {
this.selectedItems.forEach(function (item) {
this.deselect(item, notify);
}.bind(this));
} else {
this.deselect(this.selectedItem, notify);
}
}
_allChecked() {
var allChecked = true;
this.data.forEach(function (item) {
var key = this._getKeyByItem(item);
if (this.selectedKeys.indexOf(key) == -1) {
allChecked = false;
}
}.bind(this));
return allChecked && this.data.length > 0;
}
_someChecked() {
return this.selectedKeys.length > 0 && !this._allChecked();
}
_isRowSelected(key) {
if (this.multiSelection) {
return this.selectedKeys.indexOf(key) > -1;
} else {
return this.selectedKey == key;
}
}
_setSelection(ev) {
var key = ev.model.rowKey;
if (ev.target.checked) {
if (this.multiSelection) {
this.push('selectedKeys', key);
this._fireCustomEvent(this, "selection-changed", { selected: [key] });
} else {
if (this.selectedKey) {
this._fireCustomEvent(this, "selection-changed", { selected: [key], deselected: [this.selectedKey] });
} else {
this._fireCustomEvent(this, "selection-changed", { selected: [key] });
}
this.selectedKey = key;
}
} else {
if (this.multiSelection) {
this.splice('selectedKeys', this.selectedKeys.indexOf(key), 1);
} else {
this.selectedKey = null;
}
this._fireCustomEvent(this, "selection-changed", { deselected: [key] });
}
}
_toggleSelection(key) {
if (this.selectable) {
if (this.multiSelection) {
var checked = this.selectedKeys.indexOf(key) > -1;
if (checked) {
this.splice('selectedKeys', this.selectedKeys.indexOf(key), 1);
this._fireCustomEvent(this, "selection-changed", { deselected: [key] });
} else {
this.push('selectedKeys', key);
this._fireCustomEvent(this, "selection-changed", { selected: [key] });
}
} else {
var checked = this.selectedKey == key;
if (checked) {
this.selectedKey = null;
this._fireCustomEvent(this, "selection-changed", { deselected: [key] });
} else {
if (this.selectedKey) {
this._fireCustomEvent(this, "selection-changed", { selected: [key], deselected: [this.selectedKey] });
} else {
this._fireCustomEvent(this, "selection-changed", { selected: [key] });
}
this.selectedKey = key;
}
}
}
}
/**
* Wrapper for platform custom event emitter
*/
_fireCustomEvent(context, eventName, eventBody, eventSettings) {
if (!eventBody) {
eventBody = {};
}
if (!eventSettings) {
eventSettings = {
bubbles: false,
composed: false
}
}
var newEvent = new CustomEvent(eventName, { detail: eventBody, bubbles: eventSettings.bubbles, composed: eventSettings.composed });
context.dispatchEvent(newEvent);
return newEvent;
}
/**
* Sort the specified column, where `column` is a reference to the actual `<paper-datatable-column>`
* element.
*/
sort(column) {
this.async(function () {
var eventBody = {
sort: {
property: column.property,
direction: column.sortDirection
}, column: column
}
var triggeredEvent = this._fireCustomEvent(this, "sort", eventBody);
this.set('_currentlySortedColumn', column);
this._applySortedIndicatorsToDOM();
if (triggeredEvent.defaultPrevented) {
this._internalSortEnabled = false;
} else {
this._internalSortEnabled = true;
}
this._internalSort(column);
});
}
_applySortedIndicatorsToDOM() {
var previouslySortedTh = dom(this.shadowRoot).querySelector("th[data-sorted]");
if (previouslySortedTh) {
previouslySortedTh.removeAttribute('data-sorted');
}
var column = this._currentlySortedColumn;
if (column) {
var thsList = dom(this.shadowRoot).querySelectorAll("th");
var th = Array.prototype.find.call(thsList, function (el) {
return el.dataColumn === column;
});
//column might have been removed or made inactive
if (th) {
th.setAttribute('data-sorted', true);
th.setAttribute('data-sort-direction', column.sortDirection);
}
}
}
_internalSort(column) {
if (this._internalSortEnabled && this._rowKeys) {
this._rowKeys.sort(function (a, b) {
if (column.sortDirection == 'desc') {
var c = a;