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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview 'settings-cups-printers-entry-list' is a component for a list
* of PrinterListEntry's.
*/
Polymer({
is: 'settings-cups-printers-entry-list',
behaviors: [
ListPropertyUpdateBehavior,
],
properties: {
/**
* List of printers.
* @type {!Array<!PrinterListEntry>}
*/
printers: {
type: Array,
value: () => [],
},
/**
* List of printers filtered through a search term.
* @type {!Array<!PrinterListEntry>}
* @private
*/
filteredPrinters_: {
type: Array,
value: () => [],
},
/**
* Search term for filtering |printers|.
* @type {string}
*/
searchTerm: {
type: String,
value: '',
},
/**
* Whether to show the no search results message.
* @type {boolean}
* @private
*/
showNoSearchResultsMessage_: {
type: Boolean,
value: false,
},
},
observers: [
'onSearchChanged_(printers.*, searchTerm)'
],
/**
* Redoes the search whenever |searchTerm| or |printers| changes.
* @private
*/
onSearchChanged_: function() {
if (!this.printers) {
return;
}
// Filter printers through |searchTerm|. If |searchTerm| is empty,
// |filteredPrinters_| is just |printers|.
const updatedPrinters = this.searchTerm ?
this.printers.filter(
item =>this.matchesSearchTerm_(item.printerInfo,this.searchTerm)) :
this.printers.slice();
updatedPrinters.sort(this.sortPrinters_);
this.updateList('filteredPrinters_', printer => printer.printerInfo,
updatedPrinters);
this.showNoSearchResultsMessage_ =
!!this.searchTerm && !this.filteredPrinters_.length;
},
/**
* @param {!PrinterListEntry} first
* @param {!PrinterListEntry} second
* @return {number}
* @private
*/
sortPrinters_: function(first, second) {
if (first.printerType == second.printerType) {
return settings.printing.alphabeticalSort(
first.printerInfo, second.printerInfo);
}
// PrinterType sort order maintained in cups_printer_types.js
return first.printerType - second.printerType;
},
/**
* @param {!CupsPrinterInfo} printer
* @param {string} searchTerm
* @return {boolean} True if the printer has |searchTerm| in its name.
* @private
*/
matchesSearchTerm_: function(printer, searchTerm) {
return printer.printerName.toLowerCase().includes(searchTerm.toLowerCase());
}
});
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