svgedit
Version:
Powerful SVG-Editor for your browser
340 lines (323 loc) • 9.26 kB
JavaScript
/* globals svgEditor */
/**
* @class ExplorerButton
*/
export class ExplorerButton extends HTMLElement {
/**
* @function constructor
*/
constructor () {
super()
// create the shadowDom and insert the template
// create the shadowDom and insert the template
this.imgPath = svgEditor.configObj.curConfig.imgPath
this.template = this.createTemplate(this.imgPath)
this._shadowRoot = this.attachShadow({ mode: 'open' })
this._shadowRoot.append(this.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()
this.imgPath = svgEditor.configObj.curConfig.imgPath
// Closes opened (pressed) lib menu on click on the canvas
const workarea = document.getElementById('workarea')
workarea.addEventListener('click', (e) => {
this.$menu.classList.remove('open')
this.$lib.classList.remove('open-lib')
})
}
/**
* @function createTemplate
* @param {string} imgPath
* @returns {any} template
*/
createTemplate (imgPath) {
const template = document.createElement('template')
template.innerHTML = `
<style>
:host {
position:relative;
}
.menu-button:hover, se-button:hover, .menu-item:hover
{
background-color: var(--icon-bg-color-hover);
}
img {
border: none;
width: 24px;
height: 24px;
}
.overall.pressed .button-icon,
.overall.pressed,
.menu-item.pressed {
background-color: var(--icon-bg-color-hover) !important;
}
.overall.pressed .menu-button {
background-color: var(--icon-bg-color-hover) !important;
}
.disabled {
opacity: 0.3;
cursor: default;
}
.menu-button {
height: 24px;
width: 24px;
margin: 2px 1px 4px;
padding: 3px;
background-color: var(--icon-bg-color);
cursor: pointer;
position: relative;
border-radius: 3px;
overflow: hidden;
}
.handle {
height: 8px;
width: 8px;
background-image: url(${imgPath}/handle.svg);
position:absolute;
bottom: 0px;
right: 0px;
}
.button-icon {
}
.menu {
position: fixed;
margin-left: 34px;
background: none !important;
display:none;
top: 30%;
left: 171px;
}
.image-lib {
position: fixed;
left: 34px;
top: 30%;
background: #E8E8E8;
display: none;
flex-wrap: wrap;
flex-direction: row;
width: 170px;
}
.menu-item {
line-height: 1em;
padding: 0.5em;
border: 1px solid #5a6162;
background: #E8E8E8;
margin-bottom: -1px;
white-space: nowrap;
}
.open-lib {
display: inline-flex;
}
.open {
display: block;
}
.overall {
background: none !important;
}
</style>
<div class="overall">
<div class="menu-button">
<img class="button-icon" src="explorer.svg" alt="icon">
<div class="handle"></div>
</div>
<div class="image-lib"">
<se-button></se-button>
</div>
<div class="menu">
<div class="menu-item">menu</div>
</div>
</div>`
return template
}
/**
* @function observedAttributes
* @returns {any} observed
*/
static get observedAttributes () {
return ['title', 'pressed', 'disabled', 'lib', 'src']
}
/**
* @function attributeChangedCallback
* @param {string} name
* @param {string} oldValue
* @param {string} newValue
* @returns {void}
*/
async attributeChangedCallback (name, oldValue, newValue) {
if (oldValue === newValue) return
switch (name) {
case 'title':
{
const shortcut = this.getAttribute('shortcut')
this.$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.$overall.classList.add('disabled')
} else {
this.$overall.classList.remove('disabled')
}
break
case 'lib':
try {
const response = await fetch(`${newValue}index.json`)
const json = await response.json()
const { lib } = json
this.$menu.innerHTML = lib.map((menu, i) => (
`<div data-menu="${menu}" class="menu-item ${(i === 0) ? 'pressed' : ''} ">${menu}</div>`
)).join('')
await this.updateLib(lib[0])
} catch (error) {
console.error(error)
}
break
case 'src':
this.$img.setAttribute('src', this.imgPath + '/' + newValue)
break
default:
console.error(`unknown attribute: ${name}`)
break
}
}
/**
* @function get
* @returns {any}
*/
get title () {
return this.getAttribute('title')
}
/**
* @function set
* @returns {void}
*/
set title (value) {
this.setAttribute('title', value)
}
/**
* @function get
* @returns {any}
*/
get pressed () {
return this.hasAttribute('pressed')
}
/**
* @function set
* @returns {void}
*/
set pressed (value) {
// boolean value => existence = true
if (value) {
this.setAttribute('pressed', 'true')
} else {
this.removeAttribute('pressed', '')
}
}
/**
* @function get
* @returns {any}
*/
get disabled () {
return this.hasAttribute('disabled')
}
/**
* @function set
* @returns {void}
*/
set disabled (value) {
// boolean value => existence = true
if (value) {
this.setAttribute('disabled', 'true')
} else {
this.removeAttribute('disabled', '')
}
}
/**
* @function connectedCallback
* @returns {void}
*/
connectedCallback () {
// capture click event on the button to manage the logic
const onClickHandler = (ev) => {
ev.stopPropagation()
switch (ev.target.nodeName) {
case 'SE-EXPLORERBUTTON':
this.$menu.classList.toggle('open')
this.$lib.classList.toggle('open-lib')
break
case 'SE-BUTTON':
// change to the current action
this.currentAction = ev.target
this.$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:
console.error('unknown nodeName for:', ev.target, ev.target.className)
}
}
// capture event from slots
svgEditor.$click(this, onClickHandler)
svgEditor.$click(this.$menu, onClickHandler)
svgEditor.$click(this.$lib, onClickHandler)
svgEditor.$click(this.$handle, onClickHandler)
}
/**
* @function updateLib
* @param {string} lib
* @returns {void}
*/
async updateLib (lib) {
const libDir = this.getAttribute('lib')
try {
// initialize buttons for all shapes defined for this library
const response = await fetch(`${libDir}${lib}.json`)
const json = await response.json()
this.data = json.data
const size = json.size ?? 300
const fill = json.fill ? '#333' : 'none'
const off = size * 0.05
const vb = [-off, -off, size + off * 2, size + off * 2].join(' ')
const stroke = json.fill ? 0 : (size / 30)
this.$lib.innerHTML = Object.entries(this.data).map(([key, path]) => {
const encoded = btoa(`
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24">
<svg viewBox="${vb}"><path fill="${fill}" stroke="#f8bb00" stroke-width="${stroke}" d="${path}"></path></svg>
</svg>`)
return `<se-button data-shape="${key}"src="data:image/svg+xml;base64,${encoded}"></se-button>`
}).join('')
} catch (error) {
console.error(`could not read file:${libDir}${lib}.json`, error)
}
}
}
// Register
customElements.define('se-explorerbutton', ExplorerButton)