devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/ui/data_grid/ui.data_grid.focus.js)
* Version: 21.1.4
* Build date: Mon Jun 21 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import gridCore from "./ui.data_grid.core";
import {
focusModule
} from "../grid_core/ui.grid_core.focus";
import {
Deferred
} from "../../core/utils/deferred";
import {
isDefined
} from "../../core/utils/type";
import {
equalByValue
} from "../../core/utils/common";
import {
createGroupFilter
} from "./ui.data_grid.utils";
import {
compileGetter
} from "../../core/utils/data";
import {
extend
} from "../../core/utils/extend";
var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
gridCore.registerModule("focus", extend(true, {}, focusModule, {
extenders: {
controllers: {
data: {
changeRowExpand: function(path, isRowClick) {
if (this.option("focusedRowEnabled") && Array.isArray(path) && this.isRowExpanded(path)) {
var keyboardNavigation = this.getController("keyboardNavigation");
if ((!isRowClick || !keyboardNavigation.isKeyboardEnabled()) && this._isFocusedRowInsideGroup(path)) {
this.option("focusedRowKey", path)
}
}
return this.callBase.apply(this, arguments)
},
_isFocusedRowInsideGroup: function(path) {
var columnsController = this.getController("columns");
var focusedRowKey = this.option("focusedRowKey");
var rowIndex = this.getRowIndexByKey(focusedRowKey);
var focusedRow = rowIndex >= 0 && this.getVisibleRows()[rowIndex];
var groups = columnsController.getGroupDataSourceParameters(true);
if (focusedRow) {
for (var i = 0; i < path.length; ++i) {
var getter = compileGetter(groups[i] && groups[i].selector);
if (getter(focusedRow.data) !== path[i]) {
return false
}
}
}
return true
},
_getGroupPath: function(group) {
var groupPath = [group.key];
var items = group.items;
while (items && items[0]) {
var item = items[0];
if (void 0 !== item.key) {
groupPath.push(item.key)
}
items = item.items
}
return groupPath
},
_expandGroupByPath: function(that, groupPath, level) {
var d = new Deferred;
level++;
that.expandRow(groupPath.slice(0, level)).done((function() {
if (level === groupPath.length) {
d.resolve()
} else {
that._expandGroupByPath(that, groupPath, level).done(d.resolve).fail(d.reject)
}
})).fail(d.reject);
return d.promise()
},
_calculateGlobalRowIndexByGroupedData: function(key) {
var that = this;
var dataSource = that._dataSource;
var filter = that._generateFilterByKey(key);
var deferred = new Deferred;
var isGroupKey = Array.isArray(key);
var group = dataSource.group();
if (isGroupKey) {
return deferred.resolve(-1).promise()
}
if (!dataSource._grouping._updatePagingOptions) {
that._calculateGlobalRowIndexByFlatData(key, null, true).done(deferred.resolve).fail(deferred.reject);
return deferred
}
dataSource.load({
filter: that._concatWithCombinedFilter(filter),
group: group
}).done((function(data) {
if (!data || 0 === data.length || !isDefined(data[0].key) || -1 === data[0].key) {
return deferred.resolve(-1).promise()
}
var groupPath = that._getGroupPath(data[0]);
that._expandGroupByPath(that, groupPath, 0).done((function() {
that._calculateExpandedRowGlobalIndex(deferred, key, groupPath, group)
})).fail(deferred.reject)
})).fail(deferred.reject);
return deferred.promise()
},
_calculateExpandedRowGlobalIndex: function(deferred, key, groupPath, group) {
var groupFilter = createGroupFilter(groupPath, {
group: group
});
var dataSource = this._dataSource;
var scrollingMode = this.option("scrolling.mode");
var isVirtualScrolling = "virtual" === scrollingMode || "infinite" === scrollingMode;
var pageSize = dataSource.pageSize();
var groupOffset;
dataSource._grouping._updatePagingOptions({
skip: 0,
take: MAX_SAFE_INTEGER
}, (function(groupInfo, totalOffset) {
if (equalByValue(groupInfo.path, groupPath)) {
groupOffset = totalOffset
}
}));
this._calculateGlobalRowIndexByFlatData(key, groupFilter).done((function(dataOffset) {
var count;
var groupContinuationCount;
if (dataOffset < 0) {
deferred.resolve(-1);
return
}
var currentPageOffset = groupOffset % pageSize || pageSize;
count = currentPageOffset + dataOffset - groupPath.length;
if (isVirtualScrolling) {
groupContinuationCount = 0
} else {
groupContinuationCount = Math.floor(count / (pageSize - groupPath.length)) * groupPath.length
}
count = groupOffset + dataOffset + groupContinuationCount;
deferred.resolve(count)
})).fail(deferred.reject)
}
}
}
}
}));