coral-spectrum/coral-component-colorinput/src/scripts/ColorInputSwatch.js
/**
* 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 {BaseComponent} from '../../../coral-base-component';
import BaseColorInputAbstractSubview from './BaseColorInputAbstractSubview';
import Color from './Color';
import '../../../coral-component-button';
import colorButton from '../templates/colorButton';
import {commons, i18n, transform} from '../../../coral-utils';
import {Decorator} from '../../../coral-decorator';
const CLASSNAME = '_coral-ColorInput-swatch';
/**
@class Coral.ColorInput.Swatch
@classdesc A ColorInput Swatch component
@htmltag coral-colorinput-swatch
@extends {HTMLElement}
@extends {BaseComponent}
@extends {BaseColorInputAbstractSubview}
*/
const ColorInputSwatch = Decorator(class extends BaseColorInputAbstractSubview(BaseComponent(HTMLElement)) {
/** @ignore */
constructor() {
super();
// Events
this._delegateEvents(this._events);
// Templates
this._elements = {};
colorButton.call(this._elements);
}
/**
Whether the Item is selected.
@type {Boolean}
@default false
@htmlattribute selected
@htmlattributereflected
*/
get selected() {
return this._selected || false;
}
set selected(value) {
value = transform.booleanAttr(value);
if (!value || value && !this.disabled) {
this._selected = value;
this._reflectAttribute('selected', this.disabled ? false : this._selected);
this.removeAttribute('aria-selected', this._selected);
this.classList.toggle('is-selected', this._selected);
this._elements.colorButton.setAttribute('aria-selected', this._selected);
this._elements.colorButton.tabIndex = this.tabIndex;
this.removeAttribute('tabindex');
this._elements.colorButton[this._selected ? 'setAttribute' : 'removeAttribute']('aria-label',
`${i18n.get('checked')} ${this._elements.colorButton.label.textContent}`);
this.trigger('coral-colorinput-swatch:_selectedchanged');
}
}
/**
The Coral.ColorInput.Item that the swatch is a visual representation of. It accepts a DOM element or a CSS selector.
If a CSS selector is provided, the first matching element will be used.
@type {HTMLElement|String}
@default null
@htmlattribute targetcolor
*/
get targetColor() {
return this._targetColor || null;
}
set targetColor(value) {
if (typeof value === 'string') {
value = this.querySelector(value);
}
// Store new value
this._targetColor = value;
let cssColorValue = '';
let hexColorValue = '';
if (this._targetColor) {
const color = new Color();
color.value = this._targetColor.value;
cssColorValue = color.rgbaValue;
hexColorValue = color.hexValue;
}
// Update background color and text label for color swatch
if (cssColorValue) {
this._elements.colorButton.style.backgroundColor = cssColorValue;
this._elements.colorButton.label.textContent = hexColorValue;
this.setAttribute('data-value', hexColorValue);
} else {
this._elements.colorButton.classList.add('_coral-ColorInput-swatch-novalue');
this._elements.colorButton.label.textContent = i18n.get('unset');
this.setAttribute('data-value', '');
}
}
/**
Whether the color preview is disabled or not.
@type {Boolean}
@default false
@htmlattribute disabled
@htmlattributereflected
*/
get disabled() {
return this._elements.colorButton.disabled;
}
set disabled(value) {
this._elements.colorButton.disabled = value;
this._reflectAttribute('disabled', this.disabled);
}
/**
The tabindex of the color preview button.
So that we don't wind up with nested focusable elements,
the internal colorButton should should receive the tabIndex property,
while the coral-colorinput-swatch should reflect the value using the _tabindex attribute.
@type {Integer}
@default -1
@htmlattribute tabindex
@htmlattributereflected
*/
get tabIndex() {
return this._elements.colorButton.tabIndex;
}
set tabIndex(value) {
this._elements.colorButton.tabIndex = value;
this.removeAttribute('tabindex');
}
/** @ignore */
_onColorInputChange() {
if (this.targetColor) {
// sync selections
this.selected = this.targetColor.selected;
}
}
static get _attributePropertyMap() {
return commons.extend(super._attributePropertyMap, {
tabindex: 'tabIndex',
targetcolor: 'targetColor'
});
}
/** @ignore */
static get observedAttributes() {
return super.observedAttributes.concat([
'selected',
'tabindex',
'disabled',
'targetcolor'
]);
}
/** @ignore */
render() {
super.render();
this.classList.add(CLASSNAME, 'u-coral-clearFix');
// adds the role to support accessibility
this.setAttribute('role', 'presentation');
// Support cloneNode
const button = this.querySelector('[handle="colorButton"]');
if (button) {
button.remove();
}
this.appendChild(this._elements.colorButton);
}
});
export default ColorInputSwatch;