const template = document.createElement('template');
template.innerHTML = `
`;
/**
* @class ExplorerButton
*/
export class ExplorerButton extends HTMLElement {
/**
* @function constructor
*/
constructor () {
super();
// create the shadowDom and insert the template
this._shadowRoot = this.attachShadow({mode: 'open'});
this._shadowRoot.appendChild(template.content.cloneNode(true));
// locate the component
this.$button = this._shadowRoot.querySelector('.menu-button');
this.$overall = this._shadowRoot.querySelector('.overall');
this.$img = this._shadowRoot.querySelector('.menu-button img');
this.$menu = this._shadowRoot.querySelector('.menu');
this.$handle = this._shadowRoot.querySelector('.handle');
this.$lib = this._shadowRoot.querySelector('.image-lib');
this.files = [];
this.request = new XMLHttpRequest();
}
/**
* @function observedAttributes
* @returns {any} observed
*/
static get observedAttributes () {
return ['title', 'pressed', 'disabled', 'lib', 'src'];
}
/**
* @function attributeChangedCallback
* @param {string} name
* @param {string} oldValue
* @param {string} newValue
* @returns {void}
*/
async attributeChangedCallback (name, oldValue, newValue) {
if (oldValue === newValue) return;
switch (name) {
case 'title':
{
const shortcut = this.getAttribute('shortcut');
this.$button.setAttribute('title', `${newValue} [${shortcut}]`);
}
break;
case 'pressed':
if (newValue) {
this.$overall.classList.add('pressed');
} else {
this.$overall.classList.remove('pressed');
}
break;
case 'disabled':
if (newValue) {
this.$div.classList.add('disabled');
} else {
this.$div.classList.remove('disabled');
}
break;
case 'lib':
try {
const response = await fetch(`${newValue}index.json`);
const json = await response.json();
const {lib} = json;
// eslint-disable-next-line no-unsanitized/property
this.$menu.innerHTML = lib.map((menu, i) => (
``
)).join('');
await this.updateLib(lib[0]);
} catch (error) {
console.error(error);
}
break;
case 'src':
this.$img.setAttribute('src', newValue);
break;
default:
// eslint-disable-next-line no-console
console.error(`unknown attribute: ${name}`);
break;
}
}
/**
* @function get
* @returns {any}
*/
get title () {
return this.getAttribute('title');
}
/**
* @function set
* @returns {void}
*/
set title (value) {
this.setAttribute('title', value);
}
/**
* @function get
* @returns {any}
*/
get pressed () {
return this.hasAttribute('pressed');
}
/**
* @function set
* @returns {void}
*/
set pressed (value) {
// boolean value => existence = true
if (value) {
this.setAttribute('pressed', 'true');
} else {
this.removeAttribute('pressed', '');
}
}
/**
* @function get
* @returns {any}
*/
get disabled () {
return this.hasAttribute('disabled');
}
/**
* @function set
* @returns {void}
*/
set disabled (value) {
// boolean value => existence = true
if (value) {
this.setAttribute('disabled', 'true');
} else {
this.removeAttribute('disabled', '');
}
}
/**
* @function connectedCallback
* @returns {void}
*/
connectedCallback () {
// capture click event on the button to manage the logic
const onClickHandler = (ev) => {
console.log(ev.target);
ev.stopPropagation();
switch (ev.target.nodeName) {
case 'SE-EXPLORERBUTTON':
this.$menu.classList.add('open');
this.$lib.classList.add('open-lib');
break;
case 'SE-BUTTON':
// change to the current action
this.currentAction = ev.target;
this.$img.setAttribute('src', this.currentAction.getAttribute('src'));
this.dataset.draw = this.data[this.currentAction.dataset.shape];
this._shadowRoot.querySelectorAll('.image-lib [pressed]').forEach((b) => { b.pressed = false; });
this.currentAction.setAttribute('pressed', 'pressed');
// and close the menu
this.$menu.classList.remove('open');
this.$lib.classList.remove('open-lib');
break;
case 'DIV':
if (ev.target.classList[0] === 'handle') {
// this is a click on the handle so let's open/close the menu.
this.$menu.classList.toggle('open');
this.$lib.classList.toggle('open-lib');
} else {
this._shadowRoot.querySelectorAll('.menu > .pressed').forEach((b) => { b.classList.remove('pressed'); });
ev.target.classList.add('pressed');
this.updateLib(ev.target.dataset.menu);
}
break;
default:
// eslint-disable-next-line no-console
console.error('unknown nodeName for:', ev.target, ev.target.className);
}
};
// capture event from slots
this.addEventListener('click', onClickHandler);
this.$menu.addEventListener('click', onClickHandler);
this.$lib.addEventListener('click', onClickHandler);
this.$handle.addEventListener('click', onClickHandler);
}
/**
* @function updateLib
* @param {string} lib
* @returns {void}
*/
async updateLib (lib) {
const libDir = this.getAttribute('lib');
try {
// initialize buttons for all shapes defined for this library
const response = await fetch(`${libDir}${lib}.json`);
const json = await response.json();
this.data = json.data;
const size = json.size ?? 300;
const fill = json.fill ? '#333' : 'none';
const off = size * 0.05;
const vb = [-off, -off, size + off * 2, size + off * 2].join(' ');
const stroke = json.fill ? 0 : (size / 30);
// eslint-disable-next-line no-unsanitized/property
this.$lib.innerHTML = Object.entries(this.data).map(([key, path]) => {
const encoded = btoa(`
`);
return ``;
}).join('');
} catch (error) {
console.error(`could not read file:${libDir}${lib}.json`, error);
}
}
}
// Register
customElements.define('se-explorerbutton', ExplorerButton);
