devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (ui/grid_core/ui.grid_core.search.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
var $ = require("../../core/renderer"),
domAdapter = require("../../core/dom_adapter"),
isDefined = require("../../core/utils/type").isDefined,
compileGetter = require("../../core/utils/data").compileGetter,
each = require("../../core/utils/iterator").each,
gridCoreUtils = require("./ui.grid_core.utils"),
messageLocalization = require("../../localization/message"),
dataQuery = require("../../data/query");
var SEARCH_PANEL_CLASS = "search-panel",
SEARCH_TEXT_CLASS = "search-text",
FILTERING_TIMEOUT = 700;
function allowSearch(column) {
return isDefined(column.allowSearch) ? column.allowSearch : column.allowFiltering
}
function parseValue(column, text) {
var lookup = column.lookup;
if (lookup) {
return column.parseValue.call(lookup, text)
} else {
return column.parseValue ? column.parseValue(text) : text
}
}
module.exports = {
defaultOptions: function() {
return {
searchPanel: {
visible: false,
width: 160,
placeholder: messageLocalization.format("dxDataGrid-searchPanelPlaceholder"),
highlightSearchText: true,
highlightCaseSensitive: false,
text: "",
searchVisibleColumnsOnly: false
}
}
},
extenders: {
controllers: {
data: function() {
var calculateSearchFilter = function(that, text) {
var i, column, filterValue, lookup, columns = that._columnsController.getColumns(),
searchVisibleColumnsOnly = that.option("searchPanel.searchVisibleColumnsOnly"),
filters = [];
if (!text) {
return null
}
function onQueryDone(items) {
var i, value, valueGetter = compileGetter(lookup.valueExpr);
for (i = 0; i < items.length; i++) {
value = valueGetter(items[i]);
filters.push(column.createFilterExpression(value, null, "search"))
}
}
for (i = 0; i < columns.length; i++) {
column = columns[i];
if (searchVisibleColumnsOnly && !column.visible) {
continue
}
if (allowSearch(column) && column.calculateFilterExpression) {
lookup = column.lookup;
filterValue = parseValue(column, text);
if (lookup && lookup.items) {
dataQuery(lookup.items).filter(column.createFilterExpression.call({
dataField: lookup.displayExpr,
dataType: lookup.dataType,
calculateFilterExpression: column.calculateFilterExpression
}, filterValue, null, "search")).enumerate().done(onQueryDone)
} else {
if (void 0 !== filterValue) {
filters.push(column.createFilterExpression(filterValue, null, "search"))
}
}
}
}
return gridCoreUtils.combineFilters(filters, "or")
};
return {
publicMethods: function() {
return this.callBase().concat(["searchByText"])
},
_calculateAdditionalFilter: function() {
var that = this,
filter = that.callBase(),
searchFilter = calculateSearchFilter(that, that.option("searchPanel.text"));
return gridCoreUtils.combineFilters([filter, searchFilter])
},
searchByText: function(text) {
this.option("searchPanel.text", text)
},
optionChanged: function(args) {
var that = this;
switch (args.fullName) {
case "searchPanel.text":
case "searchPanel":
that._applyFilter();
args.handled = true;
break;
default:
that.callBase(args)
}
}
}
}()
},
views: {
headerPanel: function() {
var getSearchPanelOptions = function(that) {
return that.option("searchPanel")
};
return {
_getToolbarItems: function() {
var items = this.callBase();
return this._prepareSearchItem(items)
},
_prepareSearchItem: function(items) {
var that = this,
dataController = that.getController("data"),
searchPanelOptions = getSearchPanelOptions(that);
if (searchPanelOptions && searchPanelOptions.visible) {
var toolbarItem = {
template: function(data, index, container) {
var $search = $("<div>").addClass(that.addWidgetPrefix(SEARCH_PANEL_CLASS)).appendTo(container);
that.getController("editorFactory").createEditor($search, {
width: searchPanelOptions.width,
placeholder: searchPanelOptions.placeholder,
parentType: "searchPanel",
value: that.option("searchPanel.text"),
updateValueTimeout: FILTERING_TIMEOUT,
setValue: function(value) {
dataController.searchByText(value)
},
editorOptions: {
inputAttr: {
"aria-label": messageLocalization.format("dxDataGrid-ariaSearchInGrid")
}
}
});
that.resize()
},
name: "searchPanel",
location: "after",
locateInMenu: "never",
sortIndex: 40
};
items.push(toolbarItem)
}
return items
},
_getSearchTextEditor: function() {
var $searchPanel = this.element().find("." + this.addWidgetPrefix(SEARCH_PANEL_CLASS));
if ($searchPanel.length) {
return $searchPanel.dxTextBox("instance")
}
return null
},
isVisible: function() {
var searchPanelOptions = getSearchPanelOptions(this);
return this.callBase() || searchPanelOptions && searchPanelOptions.visible
},
optionChanged: function(args) {
if ("searchPanel" === args.name) {
if ("searchPanel.text" === args.fullName) {
var editor = this._getSearchTextEditor();
if (editor) {
editor.option("value", args.value)
}
} else {
this._invalidate()
}
args.handled = true
} else {
this.callBase(args)
}
}
}
}(),
rowsView: {
init: function() {
this.callBase.apply(this, arguments);
this._searchParams = []
},
_highlightSearchText: function(cellElement, isEquals, column) {
var $parent, that = this,
searchText = that.option("searchPanel.text");
if (searchText && that.option("searchPanel.highlightSearchText")) {
var normalizeString = that.option("searchPanel.highlightCaseSensitive") ? function(str) {
return str
} : function(str) {
return str.toLowerCase()
};
if (isEquals && column) {
var value = parseValue(column, searchText),
formatOptions = gridCoreUtils.getFormatOptionsByColumn(column, "search");
searchText = gridCoreUtils.formatValue(value, formatOptions);
if (!searchText) {
return
}
}
$parent = cellElement.parent();
if (!$parent.length) {
$parent = $("<div>").append(cellElement)
}
var $items = $parent.find("*").filter(function(index, element) {
var $contents = $(element).contents();
for (var i = 0; i < $contents.length; i++) {
var node = $contents.get(i);
if (3 === node.nodeType) {
return (node.textContent || node.nodeValue || "").toLowerCase().indexOf(searchText.toLowerCase()) > -1
}
return false
}
});
each($items, function(index, element) {
each($(element).contents(), function(index, content) {
if (3 !== content.nodeType) {
return
}
var highlightSearchTextInTextNode = function highlightSearchTextInTextNode($content, searchText) {
var $searchTextSpan = $("<span>").addClass(that.addWidgetPrefix(SEARCH_TEXT_CLASS)),
text = $content.text(),
index = normalizeString(text).indexOf(normalizeString(searchText));
if (index >= 0) {
if ($content[0].textContent) {
$content[0].textContent = text.substr(0, index)
} else {
$content[0].nodeValue = text.substr(0, index)
}
$content.after($searchTextSpan.text(text.substr(index, searchText.length)));
$content = $(domAdapter.createTextNode(text.substr(index + searchText.length))).insertAfter($searchTextSpan);
return highlightSearchTextInTextNode($content, searchText)
}
};
if (isEquals) {
if (normalizeString($(content).text()) === normalizeString(searchText)) {
$(this).replaceWith($("<span>").addClass(that.addWidgetPrefix(SEARCH_TEXT_CLASS)).text($(content).text()))
}
} else {
highlightSearchTextInTextNode($(content), searchText)
}
})
})
}
},
_renderCore: function() {
this.callBase.apply(this, arguments);
if (this.option("rowTemplate")) {
if (this.option("templatesRenderAsynchronously")) {
clearTimeout(this._highlightTimer);
this._highlightTimer = setTimeout(function() {
this._highlightSearchText(this._getTableElement())
}.bind(this))
} else {
this._highlightSearchText(this._getTableElement())
}
}
},
_updateCell: function($cell, parameters) {
var column = parameters.column,
dataType = column.lookup && column.lookup.dataType || column.dataType,
isEquals = "string" !== dataType;
if (allowSearch(column)) {
if (this.option("templatesRenderAsynchronously")) {
if (!this._searchParams.length) {
clearTimeout(this._highlightTimer);
this._highlightTimer = setTimeout(function() {
this._searchParams.forEach(function(params) {
this._highlightSearchText.apply(this, params)
}.bind(this));
this._searchParams = []
}.bind(this))
}
this._searchParams.push([$cell, isEquals, column])
} else {
this._highlightSearchText($cell, isEquals, column)
}
}
this.callBase($cell, parameters)
},
dispose: function() {
clearTimeout(this._highlightTimer);
this.callBase()
}
}
}
}
};