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* Copyright 2019 Adobe. All rights reserved.
* This file is licensed to you 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 REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
import {List} from '../../../coral-component-list';
import {SelectableCollection} from '../../../coral-collection';
import {Icon} from '../../../coral-component-icon';
import organization from '../templates/organization';
import {transform, commons} from '../../../coral-utils';
const CLASSNAME = '_coral-Shell-orgSwitcher-item';
/**
@class Coral.Shell.Organization
@classdesc A Shell Organization component
@htmltag coral-shell-organization
@extends {ListItem}
*/
class ShellOrganization extends List.Item {
/** @ignore */
constructor() {
super();
// Events
this._delegateEvents({
'click': '_onClick',
'key:enter': '_onClick',
'key:space': '_onClick',
// Private
'coral-shell-suborganization:_selectedchanged': '_onItemSelectedChanged'
});
const template = {};
organization.call(template, {Icon});
commons.extend(this._elements, template);
// Used for eventing
this._oldSelection = null;
// Item handling
this.items._startHandlingItems(true);
}
/**
The item collection.
@type {SelectableCollection}
@readonly
*/
get items() {
// Construct the collection on first request:
if (!this._items) {
this._items = new SelectableCollection({
host: this,
itemTagName: 'coral-shell-suborganization',
container: this._elements.items,
onItemAdded: this._onItemAdded,
onItemRemoved: this._onItemRemoved
});
}
return this._items;
}
/**
Returns the selected workspace.
@type {HTMLElement}
@readonly
*/
get selectedItem() {
return this.items._getLastSelected();
}
/**
Whether this organization is selected.
@type {Boolean}
@default false
@htmlattribute selected
@htmlattributereflected
*/
get selected() {
return this._selected || false;
}
set selected(value) {
this._selected = transform.booleanAttr(value);
this._reflectAttribute('selected', this._selected);
this.setAttribute('aria-selected', this._selected);
this.classList.toggle('is-selected', this._selected);
this._elements.checkmark.hidden = !this._selected;
if (this.items) {
const selectedItem = this.selectedItem;
this.classList.toggle('is-child-selected', selectedItem);
if (!this._selected && selectedItem) {
// Always de-select children when de-selected
selectedItem.removeAttribute('selected');
}
}
this.trigger(`${this.tagName.toLowerCase()}:_selectedchanged`);
}
/**
The name of this organization.
@type {String}
@default ""
@htmlattribute name
@htmlattributereflected
*/
get name() {
return this._name || '';
}
set name(value) {
this._name = transform.string(value);
this._reflectAttribute('name', this._name);
}
/** @private */
_onItemSelectedChanged(event) {
// Validate the selection only if we're an organization
if (this.tagName === 'CORAL-SHELL-ORGANIZATION') {
// Don't stop propagation here as the orgSwitcher listens to the event too
const item = event.target;
this._validateSelection(item);
}
}
/** @private */
_onItemAdded(item) {
// Move all items into the right place
this._moveItems();
this._validateSelection(item);
}
/** @private */
_onItemRemoved(item) {
this._setParent();
this._validateSelection(item);
}
/** @private */
_validateSelection(item) {
// gets the current selection
const selection = this.items._getAllSelected();
const selectionCount = selection.length;
if (selectionCount > 1) {
for (let i = 0 ; i < selectionCount ; i++) {
if (selection[i] !== item) {
// Don't trigger change events
this._preventTriggeringEvents = true;
selection[i].removeAttribute('selected');
}
}
// We can trigger change events again
this._preventTriggeringEvents = false;
}
this._triggerChangeEvent();
}
/** @private */
_triggerChangeEvent() {
const selectedItem = this.selectedItem;
const oldSelection = this._oldSelection;
if (!this._preventTriggeringEvents && selectedItem !== oldSelection) {
this.trigger(`${this.tagName.toLowerCase()}:change`, {
oldSelection: oldSelection,
selection: selectedItem
});
this._oldSelection = selectedItem;
}
}
/** @private */
_moveItems() {
Array.prototype.forEach.call(this.querySelectorAll('coral-shell-suborganization'), (item) => {
if (!this._elements.items.contains(item)) {
this._elements.items.appendChild(item);
}
});
}
/** @private */
_setParent() {
const hasChildren = this.items.length !== 0;
if (hasChildren) {
this.removeAttribute('role');
this.removeAttribute('tabindex');
} else {
// Be accessible
this.setAttribute('role', 'button');
this.setAttribute('tabindex', 0);
}
this.classList.toggle('is-parent', hasChildren);
}
/** @private */
_onClick() {
if (this.items.length !== 0) {
// You can't be selected if you have sub-organizations
return;
}
this.selected = true;
}
/** @ignore */
static get observedAttributes() {
return super.observedAttributes.concat(['name', 'selected']);
}
/** @ignore */
render() {
super.render();
this.classList.add(CLASSNAME);
// Move items into the right place
this._moveItems();
this.setAttribute('id', this.id || commons.getUID());
// Support cloneNode
const items = this.querySelector(`#${this.id} > ._coral-Shell-orgSwitcher-subitems`);
if (items) {
items.remove();
}
const checkmark = this.querySelector(`#${this.id} > ._coral-Shell-orgSwitcher-checkmark`);
if (checkmark) {
checkmark.remove();
}
// Render template
const frag = document.createDocumentFragment();
frag.appendChild(this._elements.checkmark);
frag.appendChild(this._elements.items);
this.appendChild(frag);
// Don't trigger events once connected
this._preventTriggeringEvents = true;
this._validateSelection();
this._preventTriggeringEvents = false;
this._oldSelection = this.selectedItem;
this._setParent();
}
/**
Triggered when a {@link ShellOrganization} selection changed.
@typedef {CustomEvent} coral-shell-organization:_selectedchanged
@private
*/
}
export default ShellOrganization;
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