svgedit
Version:
Powerful SVG-Editor for your browser
405 lines (365 loc) • 9.57 kB
JavaScript
/* globals svgEditor */
const template = document.createElement('template')
template.innerHTML = `
<style>
input{
border:unset;
background-color:var(--input-color);
min-width:unset;
width:40px;
height:23px;
padding:1px 2px;
border:2px;
font: inherit;
margin: 2px 1px 0px 2px;
box-sizing:border-box;
text-align: center;
border-radius: 3px 0px 0px 3px;
}
#tool-wrapper{
height:20px;
display:flex;
align-items:center;
}
#icon{
margin-bottom:1px
}
#spinner{
display:flex;
flex-direction:column;
}
#spinner > div {
height: 11px;
width: 7px;
display: flex;
align-items: center;
justify-content: center;
font-size: 7px;
border-left:solid 1px transparent;
border-right:solid 1px transparent;
background-color:var(--input-color);
}
#arrow-up{
height:9px;
margin-top: 2px;
margin-bottom: 1px;
}
#arrow-up, #arrow-down {
user-select: none;
}
hover-arrows {
from {
background: transparent;
color: var(--icon-bg-color-hover);
}
to {
background: var(--icon-bg-color-hover);
color: var(--orange-color);
}
}
#arrow-up:hover, #arrow-down:hover {
animation: hover-arrows 0.2s forwards;
}
#down{
width:18px;
height:23px;
display: flex;
align-items: center;
justify-content: center;
background-color:var(--input-color);
border-radius: 0px 3px 3px 0px;
margin: 2px 5px 0px 1px;
}
#down > img {
margin-top: 2px;
}
#options-container {
position:fixed
display:flex;
flex-direction:column;
background-color:var(--icon-bg-color);
border:solid 1px white;
box-shadow:0 0px 10px rgb(0 0 0 / 50%);
}
::slotted(*) {
margin:2px;
padding:3px;
color:white;
}
::slotted(*:hover) {
background-color: rgb(43, 60, 69);
}
</style>
<div id="tool-wrapper">
<img id="icon" alt="icon" width="18" height="18"/>
<input/>
<div id="spinner">
<div id="arrow-up">▲</div>
<div id="arrow-down">▼</div>
</div>
<div id="down">
<img width="16" height="8" src="arrow_down.svg" alt="Zoom dropdown"/>
</div>
</div>
<div id="options-container" style="display:none">
<slot></slot>
</div>
`
class SeZoom extends HTMLElement {
constructor () {
super()
this.handleMouseDown = this.handleMouseDown.bind(this)
this.handleMouseUp = this.handleMouseUp.bind(this)
this.handleKeyDown = this.handleKeyDown.bind(this)
this.initPopup = this.initPopup.bind(this)
this.handleInput = this.handleInput.bind(this)
// create the shadowDom and insert the template
this._shadowRoot = this.attachShadow({ mode: 'open' })
// locate the component
this._shadowRoot.append(template.content.cloneNode(true))
// prepare the slot element
this.slotElement = this._shadowRoot.querySelector('slot')
this.slotElement.addEventListener(
'slotchange',
this.handleOptionsChange.bind(this)
)
// hookup events for the input box
this.inputElement = this._shadowRoot.querySelector('input')
this.inputElement.addEventListener('click', this.handleClick.bind(this))
this.inputElement.addEventListener('change', this.handleInput)
this.inputElement.addEventListener('keydown', this.handleKeyDown)
this.clickArea = this._shadowRoot.querySelector('#down')
this.clickArea.addEventListener('click', this.handleClick.bind(this))
this.imgPath = svgEditor.configObj.curConfig.imgPath
this.downImageElement = this.clickArea.querySelector('img')
this.downImageElement.setAttribute(
'src',
(this.imgPath + '/' + this.downImageElement.getAttribute('src'))
)
// set src for imageElement
this.imageElement = this._shadowRoot.querySelector('img')
this.imageElement.setAttribute(
'src',
(this.imgPath + '/' + this.getAttribute('src'))
)
// hookup events for arrow buttons
this.arrowUp = this._shadowRoot.querySelector('#arrow-up')
this.arrowUp.addEventListener('click', this.increment.bind(this))
this.arrowUp.addEventListener('mousedown', e =>
this.handleMouseDown('up', true)
)
this.arrowUp.addEventListener('mouseleave', e => this.handleMouseUp('up'))
this.arrowUp.addEventListener('mouseup', e => this.handleMouseUp('up'))
this.arrowDown = this._shadowRoot.querySelector('#arrow-down')
this.arrowDown.addEventListener('click', this.decrement.bind(this))
this.arrowDown.addEventListener('mousedown', e =>
this.handleMouseDown('down', true)
)
this.arrowDown.addEventListener('mouseleave', e =>
this.handleMouseUp('down')
)
this.arrowDown.addEventListener('mouseup', e => this.handleMouseUp('down'))
this.optionsContainer = this._shadowRoot.querySelector(
'#options-container'
)
// add an event listener to close the popup
document.addEventListener('click', e => this.handleClose(e))
this.changedTimeout = null
}
static get observedAttributes () {
return ['value']
}
/**
* @function get
* @returns {any}
*/
get value () {
return this.getAttribute('value')
}
/**
* @function set
* @returns {void}
*/
set value (value) {
this.setAttribute('value', value)
}
/**
* @function attributeChangedCallback
* @param {string} name
* @param {string} oldValue
* @param {string} newValue
* @returns {void}
*/
attributeChangedCallback (name, oldValue, newValue) {
if (oldValue === newValue) {
switch (name) {
case 'value':
if (parseInt(this.inputElement.value) !== newValue) {
this.inputElement.value = newValue
}
break
}
return
}
switch (name) {
case 'value':
this.inputElement.value = newValue
this.dispatchEvent(
new CustomEvent('change', { detail: { value: newValue } })
)
break
}
}
/**
* @function handleOptionsChange
* @returns {void}
*/
handleOptionsChange () {
if (this.slotElement.assignedElements().length > 0) {
this.options = this.slotElement.assignedElements()
this.selectedValue = this.options[0].textContent
this.initPopup()
this.options.forEach(option => {
option.addEventListener('click', e => this.handleSelect(e))
})
}
}
/**
* @function handleClick
* @returns {void}
*/
handleClick () {
this.optionsContainer.style.display = 'flex'
this.inputElement.select()
this.initPopup()
}
/**
* @function handleSelect
* @param {Event} e
* @returns {void}
*/
handleSelect (e) {
this.value = e.target.getAttribute('value')
this.title = e.target.getAttribute('text')
}
/**
* @function handleShow
* @returns {void}
* initialises the popup menu position
*/
initPopup () {
const zoomPos = this.getBoundingClientRect()
const popupPos = this.optionsContainer.getBoundingClientRect()
const top = zoomPos.top - popupPos.height
const left = zoomPos.left
this.optionsContainer.style.position = 'fixed'
this.optionsContainer.style.top = `${top}px`
this.optionsContainer.style.left = `${left}px`
}
/**
* @function handleClose
* @param {Event} e
* @returns {void}
* Close the popup menu
*/
handleClose (e) {
if (e.target !== this) {
this.optionsContainer.style.display = 'none'
this.inputElement.blur()
}
}
/**
* @function handleInput
* @returns {void}
*/
handleInput () {
if (this.changedTimeout) {
clearTimeout(this.changedTimeout)
}
this.changedTimeout = setTimeout(this.triggerInputChanged.bind(this), 500)
}
/**
* @function triggerInputChanged
* @returns {void}
*/
triggerInputChanged () {
const newValue = this.inputElement.value
this.value = newValue
}
/**
* @function increment
* @returns {void}
*/
increment () {
this.value = parseInt(this.value) + 10
}
/**
* @function decrement
* @returns {void}
*/
decrement () {
if (this.value - 10 <= 0) {
this.value = 10
} else {
this.value = parseInt(this.value) - 10
}
}
/**
* @function handleMouseDown
* @param {string} dir
* @param {boolean} isFirst
* @returns {void}
* Increment/Decrement on mouse held down, if its the first call add a delay before starting
*/
handleMouseDown (dir, isFirst) {
if (dir === 'up') {
this.incrementHold = true
!isFirst && this.increment()
setTimeout(
() => {
if (this.incrementHold) {
this.handleMouseDown(dir, false)
}
},
isFirst ? 500 : 50
)
} else if (dir === 'down') {
this.decrementHold = true
!isFirst && this.decrement()
setTimeout(
() => {
if (this.decrementHold) {
this.handleMouseDown(dir, false)
}
},
isFirst ? 500 : 50
)
}
}
/**
* @function handleMouseUp
* @param {string} dir
* @returns {void}
*/
handleMouseUp (dir) {
if (dir === 'up') {
this.incrementHold = false
} else {
this.decrementHold = false
}
}
/**
* @function handleKeyDown
* @param {Event} e
* @returns {void}
*/
handleKeyDown (e) {
if (e.key === 'ArrowUp') {
this.increment()
} else if (e.key === 'ArrowDown') {
this.decrement()
}
}
}
// Register
customElements.define('se-zoom', SeZoom)