blob: 9d5d8f538e482d49a532ce9f3d97a400c754ab69 [file] [log] [blame]
/**
* @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;
/**
* @appliesMixin Gerrit.BaseUrlMixin
* @appliesMixin Gerrit.FireMixin
* @appliesMixin Gerrit.URLEncodingMixin
*/
class GrListView extends Polymer.mixinBehaviors( [
Gerrit.BaseUrlBehavior,
Gerrit.FireBehavior,
Gerrit.URLEncodingBehavior,
], Polymer.GestureEventListeners(
Polymer.LegacyElementMixin(
Polymer.Element))) {
static get is() { return 'gr-list-view'; }
static get properties() {
return {
createNew: Boolean,
items: Array,
itemsPerPage: Number,
filter: {
type: String,
observer: '_filterChanged',
},
offset: Number,
loading: Boolean,
path: String,
};
}
detached() {
super.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) {
if (loading || !items || !items.length) {
return true;
}
const lastPage = items.length < this.itemsPerPage + 1;
return lastPage;
}
}
customElements.define(GrListView.is, GrListView);
})();