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/**
* @license
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function() {
'use strict';
const REQUEST_DEBOUNCE_INTERVAL_MS = 200;
Polymer({
is: 'gr-list-view',
properties: {
createNew: Boolean,
items: Array,
itemsPerPage: Number,
filter: {
type: String,
observer: '_filterChanged',
},
offset: Number,
loading: Boolean,
path: String,
},
behaviors: [
Gerrit.BaseUrlBehavior,
Gerrit.URLEncodingBehavior,
],
detached() {
this.cancelDebouncer('reload');
},
_filterChanged(newFilter, oldFilter) {
if (!newFilter && !oldFilter) {
return;
}
this._debounceReload(newFilter);
},
_debounceReload(filter) {
this.debounce('reload', () => {
if (filter) {
return page.show(`${this.path}/q/filter:` +
this.encodeURL(filter, false));
}
page.show(this.path);
}, REQUEST_DEBOUNCE_INTERVAL_MS);
},
_createNewItem() {
this.fire('create-clicked');
},
_computeNavLink(offset, direction, itemsPerPage, filter, path) {
// Offset could be a string when passed from the router.
offset = +(offset || 0);
const newOffset = Math.max(0, offset + (itemsPerPage * direction));
let href = this.getBaseUrl() + path;
if (filter) {
href += '/q/filter:' + this.encodeURL(filter, false);
}
if (newOffset > 0) {
href += ',' + newOffset;
}
return href;
},
_computeCreateClass(createNew) {
return createNew ? 'show' : '';
},
_hidePrevArrow(loading, offset) {
return loading || offset === 0;
},
_hideNextArrow(loading, items) {
let lastPage = false;
if (items.length < this.itemsPerPage + 1) {
lastPage = true;
}
return loading || lastPage || !items || !items.length;
},
});
})();
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