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/**
* @license
* Copyright (C) 2015 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 '../../../styles/gr-change-list-styles';
import '../../shared/gr-cursor-manager/gr-cursor-manager';
import '../gr-change-list-item/gr-change-list-item';
import '../../../styles/shared-styles';
import '../../plugins/gr-endpoint-decorator/gr-endpoint-decorator';
import {afterNextRender} from '@polymer/polymer/lib/utils/render-status';
import {PolymerElement} from '@polymer/polymer/polymer-element';
import {htmlTemplate} from './gr-change-list_html';
import {appContext} from '../../../services/app-context';
import {ChangeTableMixin} from '../../../mixins/gr-change-table-mixin/gr-change-table-mixin';
import {
KeyboardShortcutMixin,
Shortcut,
} from '../../../mixins/keyboard-shortcut-mixin/keyboard-shortcut-mixin';
import {
GerritNav,
DashboardSection,
YOUR_TURN,
CLOSED,
} from '../../core/gr-navigation/gr-navigation';
import {getPluginEndpoints} from '../../shared/gr-js-api-interface/gr-plugin-endpoints';
import {getPluginLoader} from '../../shared/gr-js-api-interface/gr-plugin-loader';
import {isOwner} from '../../../utils/change-util';
import {customElement, property, observe} from '@polymer/decorators';
import {GrCursorManager} from '../../shared/gr-cursor-manager/gr-cursor-manager';
import {
AccountInfo,
ChangeInfo,
ServerInfo,
PreferencesInput,
} from '../../../types/common';
import {hasAttention} from '../../../utils/attention-set-util';
import {CustomKeyboardEvent} from '../../../types/events';
import {fireEvent, fireReload} from '../../../utils/event-util';
import {isShiftPressed} from '../../../utils/dom-util';
import {ScrollMode} from '../../../constants/constants';
const NUMBER_FIXED_COLUMNS = 3;
const CLOSED_STATUS = ['MERGED', 'ABANDONED'];
const LABEL_PREFIX_INVALID_PROLOG = 'Invalid-Prolog-Rules-Label-Name--';
const MAX_SHORTCUT_CHARS = 5;
export interface ChangeListSection {
name?: string;
query?: string;
results: ChangeInfo[];
}
export interface GrChangeList {
$: {};
}
@customElement('gr-change-list')
export class GrChangeList extends ChangeTableMixin(
KeyboardShortcutMixin(PolymerElement)
) {
static get template() {
return htmlTemplate;
}
/**
* Fired when next page key shortcut was pressed.
*
* @event next-page
*/
/**
* Fired when previous page key shortcut was pressed.
*
* @event previous-page
*/
/**
* The logged-in user's account, or an empty object if no user is logged
* in.
*/
@property({type: Object})
account: AccountInfo | undefined = undefined;
@property({type: Array, observer: '_changesChanged'})
changes?: ChangeInfo[];
/**
* ChangeInfo objects grouped into arrays. The sections and changes
* properties should not be used together.
*/
@property({type: Array})
sections: ChangeListSection[] = [];
@property({type: Array, computed: '_computeLabelNames(sections)'})
labelNames?: string[];
@property({type: Array})
_dynamicHeaderEndpoints?: string[];
@property({type: Number, notify: true})
selectedIndex?: number;
@property({type: Boolean})
showNumber?: boolean; // No default value to prevent flickering.
@property({type: Boolean})
showStar = false;
@property({type: Boolean})
showReviewedState = false;
@property({type: Object})
keyEventTarget: HTMLElement = document.body;
@property({type: Array})
changeTableColumns?: string[];
@property({type: Array})
visibleChangeTableColumns?: string[];
@property({type: Object})
preferences?: PreferencesInput;
@property({type: Boolean})
isCursorMoving = false;
@property({type: Object})
_config?: ServerInfo;
flagsService = appContext.flagsService;
private readonly restApiService = appContext.restApiService;
keyboardShortcuts() {
return {
[Shortcut.CURSOR_NEXT_CHANGE]: '_nextChange',
[Shortcut.CURSOR_PREV_CHANGE]: '_prevChange',
[Shortcut.NEXT_PAGE]: '_nextPage',
[Shortcut.PREV_PAGE]: '_prevPage',
[Shortcut.OPEN_CHANGE]: '_openChange',
[Shortcut.TOGGLE_CHANGE_REVIEWED]: '_toggleChangeReviewed',
[Shortcut.TOGGLE_CHANGE_STAR]: '_toggleChangeStar',
[Shortcut.REFRESH_CHANGE_LIST]: '_refreshChangeList',
};
}
private cursor = new GrCursorManager();
constructor() {
super();
this.cursor.scrollMode = ScrollMode.KEEP_VISIBLE;
this.cursor.focusOnMove = true;
this.addEventListener('keydown', e => this._scopedKeydownHandler(e));
}
/** @override */
ready() {
super.ready();
this.restApiService.getConfig().then(config => {
this._config = config;
});
}
/** @override */
connectedCallback() {
super.connectedCallback();
getPluginLoader()
.awaitPluginsLoaded()
.then(() => {
this._dynamicHeaderEndpoints = getPluginEndpoints().getDynamicEndpoints(
'change-list-header'
);
});
}
/** @override */
disconnectedCallback() {
this.cursor.unsetCursor();
super.disconnectedCallback();
}
/**
* Iron-a11y-keys-behavior catches keyboard events globally. Some keyboard
* events must be scoped to a component level (e.g. `enter`) in order to not
* override native browser functionality.
*
* Context: Issue 7294
*/
_scopedKeydownHandler(e: KeyboardEvent) {
if (e.keyCode === 13) {
// Enter.
this._openChange((e as unknown) as CustomKeyboardEvent);
}
}
_lowerCase(column: string) {
return column.toLowerCase();
}
@observe('account', 'preferences', '_config')
_computePreferences(
account?: AccountInfo,
preferences?: PreferencesInput,
config?: ServerInfo
) {
if (!config) {
return;
}
this.changeTableColumns = this.columnNames;
this.showNumber = false;
this.visibleChangeTableColumns = this.getEnabledColumns(
this.columnNames,
config,
this.flagsService.enabledExperiments
);
if (account && preferences) {
this.showNumber = !!(
preferences && preferences.legacycid_in_change_table
);
if (preferences.change_table && preferences.change_table.length > 0) {
const prefColumns = this.renameProjectToRepoColumn(
preferences.change_table
);
this.visibleChangeTableColumns = this.getEnabledColumns(
prefColumns,
config,
this.flagsService.enabledExperiments
);
}
}
}
/**
* This methods allows us to customize the columns per section.
*
* @param visibleColumns are the columns according to configs and user prefs
*/
_computeColumns(
section?: ChangeListSection,
visibleColumns?: string[]
): string[] {
if (!section || !visibleColumns) return [];
const cols = [...visibleColumns];
const updatedIndex = cols.indexOf('Updated');
if (section.name === YOUR_TURN.name && updatedIndex !== -1) {
cols[updatedIndex] = 'Waiting';
}
if (section.name === CLOSED.name && updatedIndex !== -1) {
cols[updatedIndex] = 'Submitted';
}
return cols;
}
_computeColspan(
section?: ChangeListSection,
visibleColumns?: string[],
labelNames?: string[]
) {
const cols = this._computeColumns(section, visibleColumns);
if (!cols || !labelNames) return 1;
return cols.length + labelNames.length + NUMBER_FIXED_COLUMNS;
}
_computeLabelNames(sections: ChangeListSection[]) {
if (!sections) {
return [];
}
let labels: string[] = [];
const nonExistingLabel = function (item: string) {
return !labels.includes(item);
};
for (const section of sections) {
if (!section.results) {
continue;
}
for (const change of section.results) {
if (!change.labels) {
continue;
}
const currentLabels = Object.keys(change.labels);
labels = labels.concat(currentLabels.filter(nonExistingLabel));
}
}
return labels.sort();
}
_computeLabelShortcut(labelName: string) {
if (labelName.startsWith(LABEL_PREFIX_INVALID_PROLOG)) {
labelName = labelName.slice(LABEL_PREFIX_INVALID_PROLOG.length);
}
return labelName
.split('-')
.reduce((a, i) => {
if (!i) {
return a;
}
return a + i[0].toUpperCase();
}, '')
.slice(0, MAX_SHORTCUT_CHARS);
}
_changesChanged(changes: ChangeInfo[]) {
this.sections = changes ? [{results: changes}] : [];
}
_processQuery(query: string) {
let tokens = query.split(' ');
const invalidTokens = ['limit:', 'age:', '-age:'];
tokens = tokens.filter(
token =>
!invalidTokens.some(invalidToken => token.startsWith(invalidToken))
);
return tokens.join(' ');
}
_sectionHref(query: string) {
return GerritNav.getUrlForSearchQuery(this._processQuery(query));
}
/**
* Maps an index local to a particular section to the absolute index
* across all the changes on the page.
*
* @param sectionIndex index of section
* @param localIndex index of row within section
* @return absolute index of row in the aggregate dashboard
*/
_computeItemAbsoluteIndex(sectionIndex: number, localIndex: number) {
let idx = 0;
for (let i = 0; i < sectionIndex; i++) {
idx += this.sections[i].results.length;
}
return idx + localIndex;
}
_computeItemSelected(
sectionIndex: number,
index: number,
selectedIndex: number
) {
const idx = this._computeItemAbsoluteIndex(sectionIndex, index);
return idx === selectedIndex;
}
_computeTabIndex(
sectionIndex: number,
index: number,
selectedIndex: number,
isCursorMoving: boolean
) {
if (isCursorMoving) return 0;
return this._computeItemSelected(sectionIndex, index, selectedIndex)
? 0
: undefined;
}
_computeItemHighlight(
account?: AccountInfo,
change?: ChangeInfo,
sectionName?: string
) {
if (!change || !account) return false;
if (CLOSED_STATUS.indexOf(change.status) !== -1) return false;
return (
hasAttention(account, change) &&
!isOwner(change, account) &&
sectionName === YOUR_TURN.name
);
}
_nextChange(e: CustomKeyboardEvent) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
e.preventDefault();
this.isCursorMoving = true;
this.cursor.next();
this.isCursorMoving = false;
this.selectedIndex = this.cursor.index;
}
_prevChange(e: CustomKeyboardEvent) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
e.preventDefault();
this.isCursorMoving = true;
this.cursor.previous();
this.isCursorMoving = false;
this.selectedIndex = this.cursor.index;
}
_openChange(e: CustomKeyboardEvent) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
e.preventDefault();
const change = this._changeForIndex(this.selectedIndex);
if (change) GerritNav.navigateToChange(change);
}
_nextPage(e: CustomKeyboardEvent) {
if (
this.shouldSuppressKeyboardShortcut(e) ||
(this.modifierPressed(e) && !isShiftPressed(e))
) {
return;
}
e.preventDefault();
fireEvent(this, 'next-page');
}
_prevPage(e: CustomKeyboardEvent) {
if (
this.shouldSuppressKeyboardShortcut(e) ||
(this.modifierPressed(e) && !isShiftPressed(e))
) {
return;
}
e.preventDefault();
this.dispatchEvent(
new CustomEvent('previous-page', {
composed: true,
bubbles: true,
})
);
}
_toggleChangeReviewed(e: CustomKeyboardEvent) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
e.preventDefault();
this._toggleReviewedForIndex(this.selectedIndex);
}
_toggleReviewedForIndex(index?: number) {
const changeEls = this._getListItems();
if (index === undefined || index >= changeEls.length || !changeEls[index]) {
return;
}
const changeEl = changeEls[index];
changeEl.toggleReviewed();
}
_refreshChangeList(e: CustomKeyboardEvent) {
if (this.shouldSuppressKeyboardShortcut(e)) {
return;
}
e.preventDefault();
fireReload(this);
}
_toggleChangeStar(e: CustomKeyboardEvent) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
e.preventDefault();
this._toggleStarForIndex(this.selectedIndex);
}
_toggleStarForIndex(index?: number) {
const changeEls = this._getListItems();
if (index === undefined || index >= changeEls.length || !changeEls[index]) {
return;
}
const changeEl = changeEls[index];
const grChangeStar = changeEl?.shadowRoot?.querySelector('gr-change-star');
if (grChangeStar) grChangeStar.toggleStar();
}
_changeForIndex(index?: number) {
const changeEls = this._getListItems();
if (index !== undefined && index < changeEls.length && changeEls[index]) {
return changeEls[index].change;
}
return null;
}
_getListItems() {
const items = this.root?.querySelectorAll('gr-change-list-item');
return !items ? [] : Array.from(items);
}
@observe('sections.*')
_sectionsChanged() {
// Flush DOM operations so that the list item elements will be loaded.
afterNextRender(this, () => {
this.cursor.stops = this._getListItems();
this.cursor.moveToStart();
if (this.selectedIndex) this.cursor.setCursorAtIndex(this.selectedIndex);
});
}
_getSpecialEmptySlot(section: DashboardSection) {
if (section.isOutgoing) return 'empty-outgoing';
if (section.name === YOUR_TURN.name) return 'empty-your-turn';
return '';
}
_isEmpty(section: DashboardSection) {
return !section.results?.length;
}
_computeAriaLabel(change?: ChangeInfo, sectionName?: string) {
if (!change) return '';
return change.subject + (sectionName ? `, section: ${sectionName}` : '');
}
}
declare global {
interface HTMLElementTagNameMap {
'gr-change-list': GrChangeList;
}
}