blob: 595694c0e61f53101a141f695f5b56aa252d5101 [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.
*/
import '@polymer/iron-input/iron-input.js';
import '@polymer/iron-icon/iron-icon.js';
import '../../../styles/shared-styles.js';
import '../gr-button/gr-button.js';
import {mixinBehaviors} from '@polymer/polymer/lib/legacy/class.js';
import {GestureEventListeners} from '@polymer/polymer/lib/mixins/gesture-event-listeners.js';
import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mixin.js';
import {PolymerElement} from '@polymer/polymer/polymer-element.js';
import {htmlTemplate} from './gr-list-view_html.js';
import {BaseUrlBehavior} from '../../../behaviors/base-url-behavior/base-url-behavior.js';
import {URLEncodingBehavior} from '../../../behaviors/gr-url-encoding-behavior/gr-url-encoding-behavior.js';
import page from 'page/page.mjs';
const REQUEST_DEBOUNCE_INTERVAL_MS = 200;
/**
* @extends PolymerElement
*/
class GrListView extends mixinBehaviors( [
BaseUrlBehavior,
URLEncodingBehavior,
], GestureEventListeners(
LegacyElementMixin(
PolymerElement))) {
static get template() { return htmlTemplate; }
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,
};
}
/** @override */
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.dispatchEvent(new CustomEvent('create-clicked', {
composed: true, bubbles: true,
}));
}
_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;
}
// TODO: fix offset (including itemsPerPage)
// to either support a decimal or make it go to the nearest
// whole number (e.g 3).
_computePage(offset, itemsPerPage) {
return offset / itemsPerPage + 1;
}
}
customElements.define(GrListView.is, GrListView);