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// Copyright 2015 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.
cr.define('extensions', function() {
const ItemList = Polymer({
is: 'extensions-item-list',
behaviors: [CrContainerShadowBehavior, I18nBehavior],
properties: {
/** @type {!Array<!chrome.developerPrivate.ExtensionInfo>} */
apps: Array,
/** @type {!Array<!chrome.developerPrivate.ExtensionInfo>} */
extensions: Array,
/** @type {extensions.ItemDelegate} */
delegate: Object,
inDevMode: {
type: Boolean,
value: false,
},
filter: {
type: String,
},
/** @private */
computedFilter_: {
type: String,
computed: 'computeFilter_(filter)',
observer: 'announceSearchResults_',
},
/** @private */
shownExtensionsCount_: {
type: Number,
value: 0,
},
/** @private */
shownAppsCount_: {
type: Number,
value: 0,
},
},
/**
* @param {string} id
* @return {?Element}
*/
getDetailsButton: function(id) {
const item = this.$$(`#${id}`);
return item && item.getDetailsButton();
},
/**
* @param {string} id
* @return {?Element}
*/
getErrorsButton: function(id) {
const item = this.$$(`#${id}`);
return item && item.getErrorsButton();
},
/**
* Computes the filter function to be used for determining which items
* should be shown. A |null| value indicates that everything should be
* shown.
* return {?Function}
* @private
*/
computeFilter_: function() {
const formattedFilter = this.filter.trim().toLowerCase();
return formattedFilter ?
i => i.name.toLowerCase().includes(formattedFilter) :
null;
},
/** @private */
shouldShowEmptyItemsMessage_: function() {
if (!this.apps || !this.extensions) {
return;
}
return this.apps.length === 0 && this.extensions.length === 0;
},
/** @private */
shouldShowEmptySearchMessage_: function() {
return !this.shouldShowEmptyItemsMessage_() &&
this.shownAppsCount_ === 0 && this.shownExtensionsCount_ === 0;
},
/** @private */
onNoExtensionsTap_: function(e) {
if (e.target.tagName == 'A') {
chrome.metricsPrivate.recordUserAction('Options_GetMoreExtensions');
}
},
/** @private */
announceSearchResults_: function() {
if (this.computedFilter_) {
Polymer.IronA11yAnnouncer.requestAvailability();
this.async(() => { // Async to allow list to update.
const total = this.shownAppsCount_ + this.shownExtensionsCount_;
this.fire('iron-announce', {
text: this.shouldShowEmptySearchMessage_() ?
this.i18n('noSearchResults') :
(total == 1 ?
this.i18n('searchResultsSingular', this.filter) :
this.i18n(
'searchResultsPlural', total.toString(), this.filter)),
});
});
}
},
});
return {
ItemList: ItemList,
};
});
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