devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/__internal/grids/data_grid/export/module.js)
* Version: 22.1.9
* Build date: Tue Apr 18 2023
*
* Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import $ from "../../../../core/renderer";
import Class from "../../../../core/class";
import {
isDefined,
isFunction
} from "../../../../core/utils/type";
import {
extend
} from "../../../../core/utils/extend";
import {
getDefaultAlignment
} from "../../../../core/utils/position";
import {
export as clientExport,
excel
} from "../../../../exporter";
import {
format
} from "../../../../core/utils/string";
import messageLocalization from "../../../../localization/message";
import "../../../../ui/button";
import "../../../../ui/drop_down_button";
import {
when,
Deferred
} from "../../../../core/utils/deferred";
import List from "../../../../ui/list_light";
import {
prepareItems
} from "../../../../ui/grid_core/ui.grid_core.export";
import dataGridCore from "../module_core";
const DATAGRID_EXPORT_MENU_CLASS = "dx-datagrid-export-menu";
const DATAGRID_EXPORT_BUTTON_CLASS = "dx-datagrid-export-button";
const DATAGRID_EXPORT_TOOLBAR_BUTTON_NAME = "exportButton";
const DATAGRID_EXPORT_ICON = "export";
const DATAGRID_EXPORT_EXCEL_ICON = "xlsxfile";
const DATAGRID_EXPORT_SELECTED_ICON = "exportselected";
const DATAGRID_PDF_EXPORT_ICON = "pdffile";
export const DataProvider = Class.inherit({
ctor(exportController, initialColumnWidthsByColumnIndex, selectedRowsOnly) {
this._exportController = exportController;
this._initialColumnWidthsByColumnIndex = initialColumnWidthsByColumnIndex;
this._selectedRowsOnly = selectedRowsOnly
},
_getGroupValue(item) {
const {
key: key,
data: data,
rowType: rowType,
groupIndex: groupIndex,
summaryCells: summaryCells
} = item;
const groupColumn = this._options.groupColumns[groupIndex];
const value = dataGridCore.getDisplayValue(groupColumn, groupColumn.deserializeValue ? groupColumn.deserializeValue(key[groupIndex]) : key[groupIndex], data, rowType);
let result = `${groupColumn.caption}: ${dataGridCore.formatValue(value,groupColumn)}`;
if (summaryCells && summaryCells[0] && summaryCells[0].length) {
result += " " + dataGridCore.getGroupRowSummaryText(summaryCells[0], this._options.summaryTexts)
}
return result
},
_correctCellIndex: cellIndex => cellIndex,
_initOptions() {
const exportController = this._exportController;
const groupColumns = exportController._columnsController.getGroupColumns();
const excelWrapTextEnabled = exportController.option("export.excelWrapTextEnabled");
this._options = {
columns: exportController._getColumns(this._initialColumnWidthsByColumnIndex),
groupColumns: groupColumns,
items: this._selectedRowsOnly || exportController._selectionOnly ? exportController._getSelectedItems() : exportController._getAllItems(),
getVisibleIndex: exportController._columnsController.getVisibleIndex.bind(exportController._columnsController),
isHeadersVisible: exportController.option("showColumnHeaders"),
summaryTexts: exportController.option("summary.texts"),
customizeExportData: exportController.option("customizeExportData"),
rtlEnabled: exportController.option("rtlEnabled"),
wrapTextEnabled: isDefined(excelWrapTextEnabled) ? excelWrapTextEnabled : !!exportController.option("wordWrapEnabled"),
customizeExcelCell: exportController.option("export.customizeExcelCell")
}
},
hasCustomizeExcelCell() {
return isDefined(this._options.customizeExcelCell)
},
customizeExcelCell(e, cellSourceData) {
if (this._options.customizeExcelCell) {
e.gridCell = cellSourceData;
if (isDefined(this._exportController) && isDefined(this._exportController.component)) {
e.component = this._exportController.component
}
this._options.customizeExcelCell(e)
}
},
getHeaderStyles: () => [{
bold: true,
alignment: "center",
wrapText: true
}, {
bold: true,
alignment: "left",
wrapText: true
}, {
bold: true,
alignment: "right",
wrapText: true
}],
getGroupRowStyle() {
return {
bold: true,
wrapText: false,
alignment: getDefaultAlignment(this._options.rtlEnabled)
}
},
getColumnStyles() {
const {
wrapTextEnabled: wrapTextEnabled
} = this._options;
const columnStyles = [];
this.getColumns().forEach(column => {
columnStyles.push({
alignment: column.alignment || "left",
format: column.format,
wrapText: wrapTextEnabled,
dataType: column.dataType
})
});
return columnStyles
},
getStyles() {
return [...this.getHeaderStyles(), ...this.getColumnStyles(), this.getGroupRowStyle()]
},
_getTotalCellStyleId(cellIndex) {
var _a;
const alignment = (null === (_a = this.getColumns()[cellIndex]) || void 0 === _a ? void 0 : _a.alignment) || "right";
return this.getHeaderStyles().map(style => style.alignment).indexOf(alignment)
},
getStyleId(rowIndex, cellIndex) {
if (rowIndex < this.getHeaderRowCount()) {
return 0
}
if (this.isTotalCell(rowIndex - this.getHeaderRowCount(), cellIndex)) {
return this._getTotalCellStyleId(cellIndex)
}
if (this.isGroupRow(rowIndex - this.getHeaderRowCount())) {
return this.getHeaderStyles().length + this.getColumns().length
}
return cellIndex + this.getHeaderStyles().length
},
getColumns(getColumnsByAllRows) {
const {
columns: columns
} = this._options;
return getColumnsByAllRows ? columns : columns[columns.length - 1]
},
getColumnsWidths() {
const columns = this.getColumns();
return isDefined(columns) ? columns.map(c => c.width) : void 0
},
getRowsCount() {
return this._options.items.length + this.getHeaderRowCount()
},
getHeaderRowCount() {
if (this.isHeadersVisible()) {
return this._options.columns.length - 1
}
return 0
},
isGroupRow(rowIndex) {
return rowIndex < this._options.items.length && "group" === this._options.items[rowIndex].rowType
},
getGroupLevel(rowIndex) {
const item = this._options.items[rowIndex - this.getHeaderRowCount()];
const groupIndex = item && item.groupIndex;
if (item && "totalFooter" === item.rowType) {
return 0
}
return isDefined(groupIndex) ? groupIndex : this._options.groupColumns.length
},
getCellType(rowIndex, cellIndex) {
const columns = this.getColumns();
if (rowIndex < this.getHeaderRowCount()) {
return "string"
}
rowIndex -= this.getHeaderRowCount();
if (cellIndex < columns.length) {
const item = this._options.items.length && this._options.items[rowIndex];
const column = columns[cellIndex];
if (item && "data" === item.rowType) {
if (isFinite(item.values[this._correctCellIndex(cellIndex)]) && !isDefined(column.customizeText)) {
return isDefined(column.lookup) ? column.lookup.dataType : column.dataType
}
}
return "string"
}
},
ready() {
const that = this;
that._initOptions();
const options = that._options;
return when(options.items).done(items => {
options.customizeExportData && options.customizeExportData(that.getColumns(that.getHeaderRowCount() > 1), items);
options.items = items
}).fail(() => {
options.items = []
})
},
_convertFromGridGroupSummaryItems(gridGroupSummaryItems) {
if (isDefined(gridGroupSummaryItems) && gridGroupSummaryItems.length > 0) {
return gridGroupSummaryItems.map(item => ({
value: item.value,
name: item.name
}))
}
},
getCellData(rowIndex, cellIndex, isExcelJS) {
let value;
let column;
const result = {
cellSourceData: {},
value: value
};
const columns = this.getColumns();
const correctedCellIndex = this._correctCellIndex(cellIndex);
if (rowIndex < this.getHeaderRowCount()) {
const columnsRow = this.getColumns(true)[rowIndex];
column = columnsRow[cellIndex];
result.cellSourceData.rowType = "header";
result.cellSourceData.column = column && column.gridColumn;
result.value = column && column.caption
} else {
rowIndex -= this.getHeaderRowCount();
const item = this._options.items.length && this._options.items[rowIndex];
if (item) {
const itemValues = item.values;
result.cellSourceData.rowType = item.rowType;
result.cellSourceData.column = columns[cellIndex] && columns[cellIndex].gridColumn;
switch (item.rowType) {
case "groupFooter":
case "totalFooter":
if (correctedCellIndex < itemValues.length) {
value = itemValues[correctedCellIndex];
if (isDefined(value)) {
result.cellSourceData.value = value.value;
result.cellSourceData.totalSummaryItemName = value.name;
result.value = dataGridCore.getSummaryText(value, this._options.summaryTexts)
} else {
result.cellSourceData.value = void 0
}
}
break;
case "group":
result.cellSourceData.groupIndex = item.groupIndex;
if (cellIndex < 1) {
result.cellSourceData.column = this._options.groupColumns[item.groupIndex];
result.cellSourceData.value = item.key[item.groupIndex];
result.cellSourceData.groupSummaryItems = this._convertFromGridGroupSummaryItems(item.summaryCells[0]);
result.value = this._getGroupValue(item)
} else {
const summaryItems = item.values[correctedCellIndex];
if (Array.isArray(summaryItems)) {
result.cellSourceData.groupSummaryItems = this._convertFromGridGroupSummaryItems(summaryItems);
value = "";
for (let i = 0; i < summaryItems.length; i++) {
value += (i > 0 ? isExcelJS ? "\n" : " \n " : "") + dataGridCore.getSummaryText(summaryItems[i], this._options.summaryTexts)
}
result.value = value
} else {
result.cellSourceData.value = void 0
}
}
break;
default:
column = columns[cellIndex];
if (column) {
const value = itemValues[correctedCellIndex];
const displayValue = dataGridCore.getDisplayValue(column, value, item.data, item.rowType);
if (!isFinite(displayValue) || isDefined(column.customizeText)) {
if (isExcelJS && isDefined(column.customizeText) && column.customizeText === this._exportController._columnsController.getCustomizeTextByDataType("boolean")) {
result.value = displayValue
} else {
result.value = dataGridCore.formatValue(displayValue, column)
}
} else {
result.value = displayValue
}
result.cellSourceData.value = value
}
result.cellSourceData.data = item.data
}
}
}
return result
},
isHeadersVisible() {
return this._options.isHeadersVisible
},
isTotalCell(rowIndex, cellIndex) {
const {
items: items
} = this._options;
const item = items[rowIndex];
const correctCellIndex = this._correctCellIndex(cellIndex);
const isSummaryAlignByColumn = item.summaryCells && item.summaryCells[correctCellIndex] && item.summaryCells[correctCellIndex].length > 0 && item.summaryCells[correctCellIndex][0].alignByColumn;
return item && "groupFooter" === item.rowType || "totalFooter" === item.rowType || isSummaryAlignByColumn
},
getCellMerging(rowIndex, cellIndex) {
const {
columns: columns
} = this._options;
const column = columns[rowIndex] && columns[rowIndex][cellIndex];
return column ? {
colspan: (column.exportColspan || 1) - 1,
rowspan: (column.rowspan || 1) - 1
} : {
colspan: 0,
rowspan: 0
}
},
getFrozenArea() {
return {
x: 0,
y: this.getHeaderRowCount()
}
}
});
export const ExportController = dataGridCore.ViewController.inherit({}).inherit({
_getEmptyCell: () => ({
caption: "",
colspan: 1,
rowspan: 1
}),
_updateColumnWidth(column, width) {
column.width = width
},
_getColumns(initialColumnWidthsByColumnIndex) {
let result = [];
let i;
let columns;
const columnsController = this._columnsController;
const rowCount = columnsController.getRowCount();
for (i = 0; i <= rowCount; i++) {
const currentHeaderRow = [];
columns = columnsController.getVisibleColumns(i, true);
let columnWidthsByColumnIndex;
if (i === rowCount) {
if (this._updateLockCount) {
columnWidthsByColumnIndex = initialColumnWidthsByColumnIndex
} else {
const columnWidths = this._getColumnWidths(this._headersView, this._rowsView);
if (columnWidths && columnWidths.length) {
columnWidthsByColumnIndex = {};
for (let i = 0; i < columns.length; i++) {
columnWidthsByColumnIndex[columns[i].index] = columnWidths[i]
}
}
}
}
for (let j = 0; j < columns.length; j++) {
const column = extend({}, columns[j], {
dataType: "datetime" === columns[j].dataType ? "date" : columns[j].dataType,
gridColumn: columns[j]
});
if (this._needColumnExporting(column)) {
const currentColspan = this._calculateExportColspan(column);
if (isDefined(currentColspan)) {
column.exportColspan = currentColspan
}
if (columnWidthsByColumnIndex) {
this._updateColumnWidth(column, columnWidthsByColumnIndex[column.index])
}
currentHeaderRow.push(column)
}
}
result.push(currentHeaderRow)
}
columns = result[rowCount];
result = prepareItems(result.slice(0, -1), this._getEmptyCell());
result.push(columns);
return result
},
_calculateExportColspan(column) {
if (!column.isBand) {
return
}
const childColumns = this._columnsController.getChildrenByBandColumn(column.index, true);
if (!isDefined(childColumns)) {
return
}
return childColumns.reduce((result, childColumn) => {
if (this._needColumnExporting(childColumn)) {
return result + (this._calculateExportColspan(childColumn) || 1)
}
return result
}, 0)
},
_needColumnExporting: column => !column.command && (column.allowExporting || void 0 === column.allowExporting),
_getFooterSummaryItems(summaryCells, isTotal) {
const result = [];
let estimatedItemsCount = 1;
let i = 0;
do {
const values = [];
for (let j = 0; j < summaryCells.length; j++) {
const summaryCell = summaryCells[j];
const itemsLength = summaryCell.length;
if (estimatedItemsCount < itemsLength) {
estimatedItemsCount = itemsLength
}
values.push(summaryCell[i])
}
result.push({
values: values,
rowType: isTotal ? "totalFooter" : "groupFooter"
})
} while (i++ < estimatedItemsCount - 1);
return result
},
_hasSummaryGroupFooters() {
const groupItems = this.option("summary.groupItems");
if (isDefined(groupItems)) {
for (let i = 0; i < groupItems.length; i++) {
if (groupItems[i].showInGroupFooter) {
return true
}
}
}
return false
},
_getItemsWithSummaryGroupFooters(sourceItems) {
let result = [];
let beforeGroupFooterItems = [];
let groupFooterItems = [];
for (let i = 0; i < sourceItems.length; i++) {
const item = sourceItems[i];
if ("groupFooter" === item.rowType) {
groupFooterItems = this._getFooterSummaryItems(item.summaryCells);
result = result.concat(beforeGroupFooterItems, groupFooterItems);
beforeGroupFooterItems = []
} else {
beforeGroupFooterItems.push(item)
}
}
return result.length ? result : beforeGroupFooterItems
},
_updateGroupValuesWithSummaryByColumn(sourceItems) {
let summaryValues = [];
for (let i = 0; i < sourceItems.length; i++) {
const item = sourceItems[i];
const {
summaryCells: summaryCells
} = item;
if ("group" === item.rowType && summaryCells && summaryCells.length > 1) {
const groupColumnCount = item.values.length;
for (let j = 1; j < summaryCells.length; j++) {
for (let k = 0; k < summaryCells[j].length; k++) {
const summaryItem = summaryCells[j][k];
if (summaryItem && summaryItem.alignByColumn) {
if (!Array.isArray(summaryValues[j - groupColumnCount])) {
summaryValues[j - groupColumnCount] = []
}
summaryValues[j - groupColumnCount].push(summaryItem)
}
}
}
if (summaryValues.length > 0) {
item.values.push(...summaryValues);
summaryValues = []
}
}
}
},
_processUnExportedItems(items) {
const columns = this._columnsController.getVisibleColumns(null, true);
const groupColumns = this._columnsController.getGroupColumns();
let values;
let summaryCells;
for (let i = 0; i < items.length; i++) {
const item = items[i];
let isCommand = false;
values = [];
summaryCells = [];
for (let j = 0; j < columns.length; j++) {
const column = columns[j];
isCommand || (isCommand = ["detailExpand", "buttons"].includes(column.type));
if (this._needColumnExporting(column)) {
if (item.values) {
if ("group" === item.rowType && !values.length) {
values.push(item.key[item.groupIndex])
} else {
values.push(item.values[j])
}
}
if (item.summaryCells) {
if ("group" === item.rowType && !summaryCells.length) {
const index = j - groupColumns.length + item.groupIndex;
summaryCells.push(item.summaryCells[isCommand ? index : index + 1])
} else {
summaryCells.push(item.summaryCells[j])
}
}
}
}
if (values.length) {
item.values = values
}
if (summaryCells.length) {
item.summaryCells = summaryCells
}
}
},
_getAllItems(data) {
const that = this;
const d = new Deferred;
const dataController = this.getController("data");
const footerItems = dataController.footerItems();
const totalItem = footerItems.length && footerItems[0];
const summaryTotalItems = that.option("summary.totalItems");
let summaryCells;
when(data).done(data => {
dataController.loadAll(data).done((sourceItems, totalAggregates) => {
that._updateGroupValuesWithSummaryByColumn(sourceItems);
if (that._hasSummaryGroupFooters()) {
sourceItems = that._getItemsWithSummaryGroupFooters(sourceItems)
}
summaryCells = totalItem && totalItem.summaryCells;
if (isDefined(totalAggregates) && summaryTotalItems) {
summaryCells = that._getSummaryCells(summaryTotalItems, totalAggregates)
}
const summaryItems = totalItem && that._getFooterSummaryItems(summaryCells, true);
if (summaryItems) {
sourceItems = sourceItems.concat(summaryItems)
}
that._processUnExportedItems(sourceItems);
d.resolve(sourceItems)
}).fail(d.reject)
}).fail(d.reject);
return d
},
_getSummaryCells(summaryTotalItems, totalAggregates) {
const dataController = this.getController("data");
const columnsController = dataController._columnsController;
return dataController._calculateSummaryCells(summaryTotalItems, totalAggregates, columnsController.getVisibleColumns(null, true), (summaryItem, column) => dataController._isDataColumn(column) ? column.index : -1)
},
_getSelectedItems() {
const selectionController = this.getController("selection");
const selectedRowData = selectionController.getSelectedRowsData();
return this._getAllItems(selectedRowData)
},
_getColumnWidths: (headersView, rowsView) => headersView && headersView.isVisible() ? headersView.getColumnWidths() : rowsView.getColumnWidths(),
init() {
this._columnsController = this.getController("columns");
this._rowsView = this.getView("rowsView");
this._headersView = this.getView("columnHeadersView");
this.createAction("onExporting", {
excludeValidators: ["disabled", "readOnly"]
});
this.createAction("onExported", {
excludeValidators: ["disabled", "readOnly"]
});
this.createAction("onFileSaving", {
excludeValidators: ["disabled", "readOnly"]
})
},
callbackNames: () => ["selectionOnlyChanged"],
getDataProvider(selectedRowsOnly) {
const columnWidths = this._getColumnWidths(this._headersView, this._rowsView);
let initialColumnWidthsByColumnIndex;
if (columnWidths && columnWidths.length) {
initialColumnWidthsByColumnIndex = {};
const columnsLastRowVisibleColumns = this._columnsController.getVisibleColumns(this._columnsController.getRowCount(), true);
for (let i = 0; i < columnsLastRowVisibleColumns.length; i++) {
initialColumnWidthsByColumnIndex[columnsLastRowVisibleColumns[i].index] = columnWidths[i]
}
}
return new DataProvider(this, initialColumnWidthsByColumnIndex, selectedRowsOnly)
},
exportToExcel(selectedRowsOnly) {
this._selectionOnly = selectedRowsOnly;
clientExport(this.component.getDataProvider(), {
fileName: this.option("export.fileName"),
proxyUrl: this.option("export.proxyUrl"),
format: "xlsx",
selectedRowsOnly: !!selectedRowsOnly,
autoFilterEnabled: !!this.option("export.excelFilterEnabled"),
rtlEnabled: this.option("rtlEnabled"),
ignoreErrors: this.option("export.ignoreExcelErrors"),
exportingAction: this.getAction("onExporting"),
exportedAction: this.getAction("onExported"),
fileSavingAction: this.getAction("onFileSaving")
}, excel.getData)
},
exportTo(selectedRowsOnly, format) {
this._selectionOnly = selectedRowsOnly;
const onExporting = this.getAction("onExporting");
const eventArgs = {
selectedRowsOnly: !!selectedRowsOnly,
format: format,
fileName: this.option("export.fileName"),
cancel: false
};
isFunction(onExporting) && onExporting(eventArgs)
},
publicMethods: () => ["getDataProvider", "exportToExcel"],
selectionOnly(value) {
if (isDefined(value)) {
this._isSelectedRows = value;
this.selectionOnlyChanged.fire()
} else {
return this._isSelectedRows
}
}
});
dataGridCore.registerModule("export", {
defaultOptions: () => ({
export: {
enabled: false,
fileName: "DataGrid",
excelFilterEnabled: false,
formats: ["xlsx"],
excelWrapTextEnabled: void 0,
proxyUrl: void 0,
allowExportSelectedData: false,
ignoreExcelErrors: true,
texts: {
exportTo: messageLocalization.format("dxDataGrid-exportTo"),
exportAll: messageLocalization.format("dxDataGrid-exportAll"),
exportSelectedRows: messageLocalization.format("dxDataGrid-exportSelectedRows")
}
}
}),
controllers: {
export: ExportController
},
extenders: {
controllers: {
editing: {
callbackNames() {
const callbackList = this.callBase();
return isDefined(callbackList) ? callbackList.push("editingChanged") : ["editingChanged"]
},
_updateEditButtons() {
this.callBase();
this.editingChanged.fire(this.hasChanges())
}
}
},
views: {
headerPanel: {
_getToolbarItems() {
const items = this.callBase();
const exportButton = this._getExportToolbarButton();
if (exportButton) {
items.push(exportButton);
this._correctItemsPosition(items)
}
return items
},
_getExportToolbarButton() {
const items = this._getExportToolbarItems();
if (0 === items.length) {
return null
}
const toolbarButtonOptions = {
name: "exportButton",
location: "after",
locateInMenu: "auto",
sortIndex: 30,
options: {
items: items
}
};
if (1 === items.length) {
const widgetOptions = Object.assign(Object.assign({}, items[0]), {
hint: items[0].text,
elementAttr: {
class: "dx-datagrid-export-button"
}
});
toolbarButtonOptions.widget = "dxButton";
toolbarButtonOptions.showText = "inMenu";
toolbarButtonOptions.options = widgetOptions
} else {
const widgetOptions = {
icon: "export",
displayExpr: "text",
items: items,
hint: this.option("export.texts.exportTo"),
elementAttr: {
class: "dx-datagrid-export-button"
},
dropDownOptions: {
width: "auto",
_wrapperClassExternal: "dx-datagrid-export-menu"
}
};
toolbarButtonOptions.options = widgetOptions;
toolbarButtonOptions.widget = "dxDropDownButton";
toolbarButtonOptions.menuItemTemplate = (_data, _index, container) => {
this._createComponent($(container), List, {
items: items
})
}
}
return toolbarButtonOptions
},
_getExportToolbarItems() {
var _a;
const exportOptions = this.option("export");
const texts = this.option("export.texts");
const formats = null !== (_a = this.option("export.formats")) && void 0 !== _a ? _a : [];
if (!exportOptions.enabled) {
return []
}
const items = [];
formats.forEach(formatType => {
let exportMethod = "exportTo";
let formatName = formatType.toUpperCase();
let exportAllIcon = "export";
if ("xlsx" === formatType) {
exportMethod = "exportToExcel";
formatName = "Excel";
exportAllIcon = "xlsxfile"
}
if ("pdf" === formatType) {
exportAllIcon = "pdffile"
}
items.push({
text: format(texts.exportAll, formatName),
icon: exportAllIcon,
onClick: () => {
this._exportController[exportMethod](false, formatType)
}
});
if (exportOptions.allowExportSelectedData) {
items.push({
text: format(texts.exportSelectedRows, formatName),
icon: "exportselected",
onClick: () => {
this._exportController[exportMethod](true, formatType)
}
})
}
});
return items
},
_correctItemsPosition(items) {
items.sort((itemA, itemB) => itemA.sortIndex - itemB.sortIndex)
},
_isExportButtonVisible() {
return this.option("export.enabled")
},
optionChanged(args) {
this.callBase(args);
if ("export" === args.name) {
args.handled = true;
this._invalidate()
}
},
init() {
const that = this;
this.callBase();
this._exportController = this.getController("export");
this._editingController = this.getController("editing");
this._editingController.editingChanged.add(hasChanges => {
that.setToolbarItemDisabled("exportButton", hasChanges)
})
},
isVisible() {
return this.callBase() || this._isExportButtonVisible()
}
}
}
}
});