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Running
on
Zero
File size: 13,386 Bytes
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/**
* Adds a named stylesheet to the document with an optional ability to replace an existing one.
*
* @param {string} name - The unique name (ID) of the stylesheet.
* @param {string} css - The CSS rules as a string.
* @param {boolean} [force=false] - Whether to replace the existing stylesheet if it exists.
* @returns {void}
*/
export function addNamedStyleSheet(name, css, force = false) {
const existingStyleSheet = document.getElementById(name)
if (existingStyleSheet && !force) {
console.debug(
`Stylesheet with name "${name}" already exists. Skipping addition.`,
)
return
}
if (existingStyleSheet && force) {
console.debug(`Stylesheet with name "${name}" exists. Replacing...`)
existingStyleSheet.remove()
}
const styleElement = document.createElement('style')
styleElement.id = name
styleElement.type = 'text/css'
styleElement.appendChild(document.createTextNode(css))
document.head.appendChild(styleElement)
console.debug(`Stylesheet with name "${name}" added.`)
}
export const ensureMTBStyles = () => {
const S = {
fg: 'var(--fg-color)',
bgi: 'var(--comfy-input-bg)',
bgm: 'var(--comfy-menu-bg)',
border: 'var(--comfy-border)',
borderHover: 'var(--comfy-border-hover)',
box: 'var(--comfy-box)',
accent: 'var(--p-button-text-primary-color)',
}
const common = `
.mtb_sidebar {
display: flex;
flex-direction: column;
background: ${S.bgm};
}
.mtb_img_grid {
display: flex;
flex-wrap: wrap;
overflow: scroll;
gap: 1em;
align-items: center;
justify-content: center;
height: 100%;
width: 100%;
}
.mtb_tools {
display: flex;
flex-direction: row;
align-items: center;
justify-content: space-between;
width: 100%;
}
`
const inputs = `
/* SELECT */
.mtb_select {
appearance: none;
display: grid;
grid-template-areas: "select";
padding: 10px;
background-color: ${S.bgi};
border: none;
border-radius: 5px;
font-size: 14px;
color: ${S.fg};
cursor: pointer;
width: 100%;
}
@supports (-moz-appearance:none) {
.mtb_select{
grid-area: select;
background: ${S.bgi} url('data:image/gif;base64,R0lGODlhBgAGAKEDAFVVVX9/f9TU1CgmNyH5BAEKAAMALAAAAAAGAAYAAAIODA4hCDKWxlhNvmCnGwUAOw==') right center no-repeat !important;
background-position: calc(100% - 5px) center !important;
-moz-appearance:none !important;
}
/* styling the dropdown arrow for browsers that support it */
.mtb_select:after {
content: "";
width: 0.8em;
height: 0.5em;
background-color: ${S.fg};
clip-path: polygon(100% 0%, 0 0%, 50% 100%);
}
.mtb_select:focus {
outline: none;
border-color: #0056b3;
}
.mtb_select > option {
padding: 10px;
background-color: ${S.bgi};
border:none;
color: ${S.fg};
}
.mtb_select > option:hover {
background-color: red;
color: ${S.fg};
}
/* SLIDER */
.mtb_slider[type="range"] {
-webkit-appearance: none;
appearance: none;
width: 100%;
height: 10px;
background: ${S.bgm};
border-radius: 5px;
outline: none;
opacity: 0.7;
transition: opacity .2s;
padding: 1em;
}
/* slider track */
.mtb_slider[type="range"]::-webkit-slider-runnable-track,
.mtb_slider[type="range"]::-moz-range-track {
width: 100%;
height: 10px;
background: ${S.bgi};
border-radius: 5px;
}
/* progress */
.mtb_slider[type="range"]::-moz-range-progress {
background-color: ${S.accent};
height:10px;
border-radius: 5px;
}
/* slider thumb (the handle) */
.mtb_slider[type="range"]::-webkit-slider-thumb,
.mtb_slider[type="range"]::-moz-range-thumb
{
-webkit-appearance: none;
appearance: none;
width: 15px;
height: 15px;
border-radius: 50%;
background: ${S.fg};
border: none;
cursor: pointer;
filter: drop-shadow(1px 1px 4px black);
}
.mtb_slider[type="range"]:focus {
opacity: 1;
}
.mtb_slider[type=range]:-moz-focusring{
outline: 1px solid red;
outline-offset: -1px;
}
.mtb_slider[type="range"]:hover::-webkit-slider-thumb,
.mtb_slider[type="range"]:active::-webkit-slider-thumb {
background-color: ${S.accent};
}
`
addNamedStyleSheet(
'mtb_ui',
`
${common}
${inputs}
`,
)
}
/**
* Creates a DOM element with optional styles, class, and id.
*
* @param {string} kind - The tag name of the element. Supports class and id syntax (e.g. 'div.class#id').
* @param {Object} [style] - CSS styles to apply to the element.
* @returns {HTMLElement} - The created DOM element.
*/
export const makeElement = (kind, style) => {
let [real_kind, className] = kind.split('.')
let id
if (className?.includes('#')) {
;[className, id] = className.split('#')
}
const el = document.createElement(real_kind)
if (style) {
Object.assign(el.style, style)
}
if (className) {
el.classList.add(...className.split(' ')) // Support multiple classes
}
if (id) {
el.id = id
}
return el
}
/**
* Clears all child elements of the given parent element.
*
* @param {HTMLElement} el - The parent element whose children should be removed.
*/
export const clearElement = (el) => {
while (el.firstChild) {
el.removeChild(el.firstChild)
}
}
/**
* Creates a labeled element (input, select, etc.).
*
* @param {HTMLElement} el - The element to label.
* @param {string} labelText - The label text.
* @returns {HTMLDivElement} - A div containing the label and the element.
*/
export const makeLabeledElement = (el, labelText) => {
const wrapper = makeElement('div.mtb_labeled_element', {
marginBottom: '1em',
})
const label = makeElement('label', {
display: 'block',
marginBottom: '0.5em',
})
label.textContent = labelText
wrapper.appendChild(label)
wrapper.appendChild(el)
return wrapper
}
/**
* Converts a camelCase CSS property to kebab-case.
*
* @param {string} prop - The camelCase CSS property.
* @returns {string} - The kebab-case CSS property.
*/
const camelToKebab = (prop) =>
prop.replace(/[A-Z]/g, (match) => `-${match.toLowerCase()}`)
/**
* Parses the style string into an object of CSS property-value pairs.
*
* @param {string} styleString - The CSS rule text (e.g., "color: red; background-color: blue;").
* @returns {Object} - An object with camelCase CSS properties.
*/
const parseStyleString = (styleString) => {
const styleObj = {}
for (const rule of styleString.split(';')) {
const [property, value] = rule.split(':').map((item) => item.trim())
if (property && value) {
const camelProp = property.replace(/-([a-z])/g, (g) => g[1].toUpperCase())
styleObj[camelProp] = value
}
}
return styleObj
}
/**
* Defines a new CSS class with the provided styles, or skips if the class already exists.
*
* @param {string} className - The name of the CSS class to define.
* @param {Object} classStyles - An object containing camelCase CSS property-value pairs.
*/
export function defineCSSClass(className, classStyles) {
const styleSheets = document.styleSheets
let classExists = false
let existingStyleString = ''
const classExistsInStyleSheet = (styleSheet) => {
const rules = styleSheet.rules || styleSheet.cssRules
for (const rule of rules) {
if (rule.selectorText === `.${className}`) {
classExists = true
existingStyleString = rule.style.cssText // Capture existing styles
return true
}
}
return false
}
for (const styleSheet of styleSheets) {
if (classExistsInStyleSheet(styleSheet)) {
console.debug(`Class ${className} already exists, merging styles...`)
break
}
}
const existingStyles = classExists
? parseStyleString(existingStyleString)
: {}
const mergedStyles = { ...existingStyles, ...classStyles }
const stylesString = Object.entries(mergedStyles)
.map(([key, value]) => `${camelToKebab(key)}: ${value};`)
.join(' ')
if (!classExists) {
console.debug(`Defining new class ${className}...`)
if (styleSheets[0].insertRule) {
styleSheets[0].insertRule(`.${className} { ${stylesString} }`, 0)
} else if (styleSheets[0].addRule) {
styleSheets[0].addRule(`.${className}`, stylesString, 0)
}
} else {
console.debug(`Updating existing class ${className} with merged styles...`)
for (const styleSheet of styleSheets) {
const rules = styleSheet.rules || styleSheet.cssRules
for (const rule of rules) {
if (rule.selectorText === `.${className}`) {
rule.style.cssText = stylesString // Update the existing rule
}
}
}
}
console.debug(
`Class ${className} has been defined/updated with styles:`,
mergedStyles,
)
}
/**
* Renders a sidebar and ensures it resizes correctly when the window is resized.
*
* @param {HTMLElement} el - The element where the sidebar is rendered.
* @param {HTMLElement} cont - The content container of the sidebar.
* @param {HTMLElement[]} elems - Array of elements to append to the sidebar.
* @returns {Object} - A handle with a method to unregister the resize event.
*/
export const renderSidebar = (el, cont, elems) => {
el.appendChild(cont)
if (!el.parentNode) {
return
}
el.parentNode.style.overflowY = 'clip'
cont.style.height = `${el.parentNode.offsetHeight}px`
const resizeHandler = () => {
cont.style.height = `${el.parentNode.offsetHeight}px`
}
window.addEventListener('resize', resizeHandler)
for (const elem of elems) {
cont.appendChild(elem)
}
return {
unregister: () => {
window.removeEventListener('resize', resizeHandler)
},
}
}
/**
* Creates a <select> dropdown with given options.
*
* @param {string[]} options - The options for the select element.
* @param {string} [current] - The currently selected option (optional).
* @returns {HTMLSelectElement} - The created <select> element.
*/
export const makeSelect = (options, current = undefined) => {
const selector = makeElement('select.mtb_select', {
width: 'auto',
margin: '1em',
})
for (const option of options) {
const opt = makeElement('option')
opt.value = option
opt.innerHTML = option
selector.appendChild(opt)
}
if (current !== undefined) {
if (options.includes(current)) {
selector.value = current
} else {
console.error(
`You tried to select an option that doesn't exist (${current}). Options: ${options}`,
)
}
}
return selector
}
/**
* Creates an <input type="range"> slider element with given parameters.
*
* @param {number} min - Minimum value of the slider.
* @param {number} max - Maximum value of the slider.
* @param {number} [value] - Initial value of the slider.
* @param {number} [step] - Step value for the slider.
* @returns {HTMLInputElement} - The created slider element.
*/
export const makeSlider = (min, max, value = undefined, step = undefined) => {
const slider = makeElement('input.mtb_slider', {
width: '100%',
})
slider.type = 'range'
slider.min = min || 0
slider.max = max || 100
slider.value = value || slider.min
slider.step = step || 1
return slider
}
/**
* Creates a button element.
*
* @param {string} label - The label for the button.
* @param {Object} [style] - Optional styles to apply to the button.
* @param {Function} [onClick] - Optional click handler.
* @returns {HTMLButtonElement} - The created button element.
*/
export const makeButton = (label, style = {}, onClick = undefined) => {
const button = makeElement('button.mtb_button', style)
button.textContent = label
if (onClick) {
button.addEventListener('click', onClick)
}
return button
}
/**
* Creates a resizable splitter between two elements.
*
* @param {HTMLElement} el1 - The first element.
* @param {HTMLElement} el2 - The second element.
* @param {'vertical' | 'horizontal'} direction - Splitter direction (vertical or horizontal).
* @param {'absolute' | 'normal'} mode - Splitter mode: 'absolute' for free resizing, 'normal' for layout-based resizing.
* @returns {HTMLDivElement} - The container with resizable splitter.
*/
export const makeSplitter = (
el1,
el2,
direction = 'vertical',
mode = 'normal',
) => {
const container = makeElement('div.mtb_splitter_container', {
display: mode === 'absolute' ? 'block' : 'flex',
flexDirection: direction === 'vertical' ? 'row' : 'column',
position: mode === 'absolute' ? 'relative' : 'static',
height: '100%',
width: '100%',
})
const handle = makeElement('div.mtb_splitter_handle', {
backgroundColor: '#ccc',
cursor: direction === 'vertical' ? 'col-resize' : 'row-resize',
width: direction === 'vertical' ? '5px' : '100%',
height: direction === 'horizontal' ? '5px' : '100%',
})
let isResizing = false
handle.addEventListener('mousedown', () => {
isResizing = true
})
window.addEventListener('mouseup', () => {
isResizing = false
})
window.addEventListener('mousemove', (e) => {
if (!isResizing) return
if (direction === 'vertical') {
const newWidth = e.clientX - container.offsetLeft
el1.style.width = `${newWidth}px`
el2.style.width = `${container.offsetWidth - newWidth}px`
} else {
const newHeight = e.clientY - container.offsetTop
el1.style.height = `${newHeight}px`
el2.style.height = `${container.offsetHeight - newHeight}px`
}
})
container.appendChild(el1)
container.appendChild(handle)
container.appendChild(el2)
return container
}
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