devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
171 lines (170 loc) • 6.64 kB
JavaScript
/**
* DevExtreme (esm/__internal/grids/grid_core/pager/m_pager.js)
* Version: 23.2.6
* Build date: Wed May 01 2024
*
* Copyright (c) 2012 - 2024 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
isDefined
} from "../../../../core/utils/type";
import {
hasWindow
} from "../../../../core/utils/window";
import messageLocalization from "../../../../localization/message";
import Pager from "../../../../ui/pager";
import modules from "../m_modules";
var PAGER_CLASS = "pager";
var MAX_PAGES_COUNT = 10;
var getPageIndex = function(dataController) {
return 1 + (parseInt(dataController.pageIndex()) || 0)
};
export class PagerView extends modules.View {
init() {
var dataController = this.getController("data");
dataController.changed.add(e => {
if (e && e.repaintChangesOnly) {
var pager = this._pager;
if (pager) {
pager.option({
pageIndex: getPageIndex(dataController),
pageSize: dataController.pageSize(),
pageCount: dataController.pageCount(),
totalCount: dataController.totalCount(),
hasKnownLastPage: dataController.hasKnownLastPage()
})
} else {
this.render()
}
} else if (!e || "update" !== e.changeType && "updateSelection" !== e.changeType && "updateFocusedRow" !== e.changeType) {
this._pager = null;
this.render()
}
})
}
dispose() {
this._pager = null
}
optionChanged(args) {
var {
name: name
} = args;
var isPager = "pager" === name;
var isPaging = "paging" === name;
var isDataSource = "dataSource" === name;
var isScrolling = "scrolling" === name;
var dataController = this.getController("data");
if (isPager || isPaging || isScrolling || isDataSource) {
args.handled = true;
if (dataController.skipProcessingPagingChange(args.fullName)) {
return
}
if (isPager || isPaging) {
this._pageSizes = null
}
if (!isDataSource) {
this._pager = null;
this._invalidate();
if (hasWindow() && isPager && this.component) {
this.component.resize()
}
}
}
}
_renderCore() {
var _a;
var $element = this.element().addClass(this.addWidgetPrefix(PAGER_CLASS));
var pagerOptions = null !== (_a = this.option("pager")) && void 0 !== _a ? _a : {};
var dataController = this.getController("data");
var keyboardController = this.getController("keyboardNavigation");
var options = {
maxPagesCount: MAX_PAGES_COUNT,
pageIndex: getPageIndex(dataController),
pageCount: dataController.pageCount(),
pageSize: dataController.pageSize(),
showPageSizes: pagerOptions.showPageSizeSelector,
showInfo: pagerOptions.showInfo,
displayMode: pagerOptions.displayMode,
pagesNavigatorVisible: pagerOptions.visible,
showNavigationButtons: pagerOptions.showNavigationButtons,
label: pagerOptions.label,
pageSizes: this.getPageSizes(),
totalCount: dataController.totalCount(),
hasKnownLastPage: dataController.hasKnownLastPage(),
pageIndexChanged(pageIndex) {
if (dataController.pageIndex() !== pageIndex - 1) {
dataController.pageIndex(pageIndex - 1)
}
},
pageSizeChanged(pageSize) {
dataController.pageSize(pageSize)
},
onKeyDown: e => keyboardController && keyboardController.executeAction("onKeyDown", e),
useLegacyKeyboardNavigation: this.option("useLegacyKeyboardNavigation"),
useKeyboard: this.option("keyboardNavigation.enabled")
};
if (isDefined(pagerOptions.infoText)) {
options.infoText = pagerOptions.infoText
}
if (this._pager) {
this._pager.repaint();
return
}
if (hasWindow()) {
this._pager = this._createComponent($element, Pager, options)
} else {
$element.addClass("dx-pager").html('<div class="dx-pages"><div class="dx-page"></div></div>')
}
}
getPager() {
return this._pager
}
getPageSizes() {
var dataController = this.getController("data");
var pagerOptions = this.option("pager");
var allowedPageSizes = pagerOptions && pagerOptions.allowedPageSizes;
var pageSize = dataController.pageSize();
if (!isDefined(this._pageSizes) || !this._pageSizes.includes(pageSize)) {
this._pageSizes = [];
if (pagerOptions) {
if (Array.isArray(allowedPageSizes)) {
this._pageSizes = allowedPageSizes
} else if (allowedPageSizes && pageSize > 1) {
this._pageSizes = [Math.floor(pageSize / 2), pageSize, 2 * pageSize]
}
}
}
return this._pageSizes
}
isVisible() {
var dataController = this.getController("data");
var pagerOptions = this.option("pager");
var pagerVisible = pagerOptions && pagerOptions.visible;
var scrolling = this.option("scrolling");
if ("auto" === pagerVisible) {
if (scrolling && ("virtual" === scrolling.mode || "infinite" === scrolling.mode)) {
pagerVisible = false
} else {
pagerVisible = dataController.pageCount() > 1 || dataController.isLoaded() && !dataController.hasKnownLastPage()
}
}
return !!pagerVisible
}
getHeight() {
return this.getElementHeight()
}
}
export var pagerModule = {
defaultOptions: () => ({
pager: {
visible: "auto",
showPageSizeSelector: false,
allowedPageSizes: "auto",
label: messageLocalization.format("dxPager-ariaLabel")
}
}),
views: {
pagerView: PagerView
}
};