Files
lightweight-charts-python/lightweight_charts/js/callback.js
louisnw 8f65a7fc96 - Fixed legend not hiding when resizing to 0
- Added the `menu` widget to the topbar.
2023-09-06 12:46:52 +01:00

263 lines
12 KiB
JavaScript

if (!window.TopBar) {
class TopBar {
constructor(chart, hoverBackgroundColor, clickBackgroundColor, activeBackgroundColor, textColor, activeTextColor) {
this.makeSwitcher = this.makeSwitcher.bind(this)
this.hoverBackgroundColor = hoverBackgroundColor
this.clickBackgroundColor = clickBackgroundColor
this.activeBackgroundColor = activeBackgroundColor
this.textColor = textColor
this.activeTextColor = activeTextColor
this.topBar = document.createElement('div')
this.topBar.style.backgroundColor = '#0c0d0f'
this.topBar.style.borderBottom = '2px solid #3C434C'
this.topBar.style.display = 'flex'
this.topBar.style.alignItems = 'center'
chart.wrapper.prepend(this.topBar)
chart.topBar = this.topBar
this.reSize = () => chart.reSize()
this.reSize()
}
makeSwitcher(items, activeItem, callbackName) {
let switcherElement = document.createElement('div');
switcherElement.style.margin = '4px 12px'
let widget = {
elem: switcherElement,
callbackName: callbackName,
}
let intervalElements = items.map((item)=> {
let itemEl = document.createElement('button');
itemEl.style.border = 'none'
itemEl.style.padding = '2px 5px'
itemEl.style.margin = '0px 2px'
itemEl.style.fontSize = '13px'
itemEl.style.borderRadius = '4px'
itemEl.style.backgroundColor = item === activeItem ? this.activeBackgroundColor : 'transparent'
itemEl.style.color = item === activeItem ? this.activeTextColor : this.textColor
itemEl.innerText = item;
document.body.appendChild(itemEl)
itemEl.style.minWidth = itemEl.clientWidth + 1 + 'px'
document.body.removeChild(itemEl)
itemEl.addEventListener('mouseenter', () => itemEl.style.backgroundColor = item === activeItem ? this.activeBackgroundColor : this.hoverBackgroundColor)
itemEl.addEventListener('mouseleave', () => itemEl.style.backgroundColor = item === activeItem ? this.activeBackgroundColor : 'transparent')
itemEl.addEventListener('mousedown', () => itemEl.style.backgroundColor = item === activeItem ? this.activeBackgroundColor : this.clickBackgroundColor)
itemEl.addEventListener('mouseup', () => itemEl.style.backgroundColor = item === activeItem ? this.activeBackgroundColor : this.hoverBackgroundColor)
itemEl.addEventListener('click', () => onItemClicked(item))
switcherElement.appendChild(itemEl);
return itemEl;
});
widget.intervalElements = intervalElements
let onItemClicked = (item)=> {
if (item === activeItem) return
intervalElements.forEach((element, index) => {
element.style.backgroundColor = items[index] === item ? this.activeBackgroundColor : 'transparent'
element.style.color = items[index] === item ? this.activeTextColor : this.textColor
element.style.fontWeight = items[index] === item ? '500' : 'normal'
})
activeItem = item;
window.callbackFunction(`${widget.callbackName}_~_${item}`);
}
this.topBar.appendChild(switcherElement)
this.makeSeparator(this.topBar)
this.reSize()
return widget
}
makeTextBoxWidget(text) {
let textBox = document.createElement('div')
textBox.style.margin = '0px 18px'
textBox.style.fontSize = '16px'
textBox.style.color = 'rgb(220, 220, 220)'
textBox.innerText = text
this.topBar.append(textBox)
this.makeSeparator(this.topBar)
this.reSize()
return textBox
}
makeMenu(items, activeItem, separator, callbackName) {
let menu = document.createElement('div')
menu.style.position = 'absolute'
menu.style.display = 'none'
menu.style.zIndex = '100000'
menu.style.backgroundColor = '#0c0d0f'
menu.style.borderRadius = '2px'
menu.style.border = '2px solid #3C434C'
menu.style.borderTop = 'none'
menu.style.alignItems = 'flex-start'
let menuOpen = false
items.forEach(text => {
let button = this.makeButton(text, null, false, false)
button.elem.addEventListener('click', () => {
widget.elem.innerText = button.elem.innerText+' ↓'
window.callbackFunction(`${callbackName}_~_${button.elem.innerText}`)
menu.style.display = 'none'
menuOpen = false
});
button.elem.style.margin = '4px 4px'
button.elem.style.padding = '2px 2px'
menu.appendChild(button.elem)
})
let widget = this.makeButton(activeItem+' ↓', null, separator)
widget.elem.addEventListener('click', () => {
menuOpen = !menuOpen
if (!menuOpen) return menu.style.display = 'none'
let rect = widget.elem.getBoundingClientRect()
menu.style.display = 'flex'
menu.style.flexDirection = 'column'
let center = rect.x+(rect.width/2)
menu.style.left = center-(menu.clientWidth/2)+'px'
menu.style.top = rect.y+rect.height+'px'
})
document.body.appendChild(menu)
}
makeButton(defaultText, callbackName, separator, append=true) {
let button = document.createElement('button')
button.style.border = 'none'
button.style.padding = '2px 5px'
button.style.margin = '4px 18px'
button.style.fontSize = '13px'
button.style.backgroundColor = 'transparent'
button.style.color = this.textColor
button.style.borderRadius = '4px'
button.innerText = defaultText;
document.body.appendChild(button)
button.style.minWidth = button.clientWidth+1+'px'
document.body.removeChild(button)
let widget = {
elem: button,
callbackName: callbackName
}
button.addEventListener('mouseenter', () => button.style.backgroundColor = this.hoverBackgroundColor)
button.addEventListener('mouseleave', () => button.style.backgroundColor = 'transparent')
if (callbackName) {
button.addEventListener('click', () => window.callbackFunction(`${widget.callbackName}_~_${button.innerText}`));
}
button.addEventListener('mousedown', () => {
button.style.backgroundColor = this.activeBackgroundColor
button.style.color = this.activeTextColor
button.style.fontWeight = '500'
})
button.addEventListener('mouseup', () => {
button.style.backgroundColor = this.hoverBackgroundColor
button.style.color = this.textColor
button.style.fontWeight = 'normal'
})
if (separator) this.makeSeparator()
if (append) this.topBar.appendChild(button); this.reSize()
return widget
}
makeSeparator() {
let seperator = document.createElement('div')
seperator.style.width = '1px'
seperator.style.height = '20px'
seperator.style.backgroundColor = '#3C434C'
this.topBar.appendChild(seperator)
}
}
window.TopBar = TopBar
}
function makeSearchBox(chart) {
let searchWindow = document.createElement('div')
searchWindow.style.position = 'absolute'
searchWindow.style.top = '0'
searchWindow.style.bottom = '200px'
searchWindow.style.left = '0'
searchWindow.style.right = '0'
searchWindow.style.margin = 'auto'
searchWindow.style.width = '150px'
searchWindow.style.height = '30px'
searchWindow.style.padding = '5px'
searchWindow.style.zIndex = '1000'
searchWindow.style.alignItems = 'center'
searchWindow.style.backgroundColor = 'rgba(30, 30, 30, 0.9)'
searchWindow.style.border = '2px solid #3C434C'
searchWindow.style.borderRadius = '5px'
searchWindow.style.display = 'none'
let magnifyingGlass = document.createElement('div');
magnifyingGlass.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24px" height="24px" viewBox="0 0 24 24" version="1.1"><path style="fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;stroke:lightgray;stroke-opacity:1;stroke-miterlimit:4;" d="M 15 15 L 21 21 M 10 17 C 6.132812 17 3 13.867188 3 10 C 3 6.132812 6.132812 3 10 3 C 13.867188 3 17 6.132812 17 10 C 17 13.867188 13.867188 17 10 17 Z M 10 17 "/></svg>`
let sBox = document.createElement('input');
sBox.type = 'text';
sBox.style.textAlign = 'center'
sBox.style.width = '100px'
sBox.style.marginLeft = '10px'
sBox.style.backgroundColor = 'rgba(0, 122, 255, 0.3)'
sBox.style.color = 'rgb(240,240,240)'
sBox.style.fontSize = '20px'
sBox.style.border = 'none'
sBox.style.outline = 'none'
sBox.style.borderRadius = '2px'
searchWindow.appendChild(magnifyingGlass)
searchWindow.appendChild(sBox)
chart.div.appendChild(searchWindow);
let yPrice = null
chart.chart.subscribeCrosshairMove((param) => {
if (param.point) yPrice = param.point.y;
})
window.selectedChart = chart
chart.wrapper.addEventListener('mouseover', (event) => window.selectedChart = chart)
chart.commandFunctions.push((event) => {
if (selectedChart !== chart) return false
if (searchWindow.style.display === 'none') {
if (/^[a-zA-Z0-9]$/.test(event.key)) {
searchWindow.style.display = 'flex';
sBox.focus();
return true
}
else return false
}
else if (event.key === 'Enter' || event.key === 'Escape') {
if (event.key === 'Enter') window.callbackFunction(`search${chart.id}_~_${sBox.value}`)
searchWindow.style.display = 'none'
sBox.value = ''
return true
}
else return false
})
sBox.addEventListener('input', () => sBox.value = sBox.value.toUpperCase())
return {
window: searchWindow,
box: sBox,
}
}
function makeSpinner(chart) {
chart.spinner = document.createElement('div')
chart.spinner.style.width = '30px'
chart.spinner.style.height = '30px'
chart.spinner.style.border = '4px solid rgba(255, 255, 255, 0.6)'
chart.spinner.style.borderTop = '4px solid rgba(0, 122, 255, 0.8)'
chart.spinner.style.borderRadius = '50%'
chart.spinner.style.position = 'absolute'
chart.spinner.style.top = '50%'
chart.spinner.style.left = '50%'
chart.spinner.style.zIndex = '1000'
chart.spinner.style.transform = 'translate(-50%, -50%)'
chart.spinner.style.display = 'none'
chart.wrapper.appendChild(chart.spinner)
let rotation = 0;
const speed = 10;
function animateSpinner() {
rotation += speed
chart.spinner.style.transform = `translate(-50%, -50%) rotate(${rotation}deg)`
requestAnimationFrame(animateSpinner)
}
animateSpinner();
}