Files
bridget/assets/ts/mobile/collection.ts
Sped0n a395513bd6 fix(customCursor.ts): move import statement for active to the top for better organization
fix(customCursor.ts): add return type void to onMouse function for clarity
fix(customCursor.ts): add passive option to window event listener for mousemove to improve performance
fix(stageNav.ts): move import statement for setCustomCursor to the top for better organization
fix(stageNav.ts): add return type void to handleClick function for clarity
fix(stageNav.ts): add return type void to handleKey function for clarity
fix(stageNav.ts): add passive option to overlay event listeners for click, keydown, mouseover, and focus to improve performance
fix(stageNav.ts): add passive option to window event listener for keydown to improve performance
fix(stageNav.ts): add return type void to nextImage function for clarity
fix(stageNav.ts): add return type void to prevImage function for clarity
fix(gallery.ts): move import statement for Swiper to the top for better organization
fix(gallery.ts): add return type void to slideUp function for clarity
fix(gallery.ts): add return type void to initGallery function for clarity
fix(gallery.ts): add passive option to window event listener for touchstart to improve performance
fix(gallery.ts): add return type void to changeSlide function for clarity
fix(gallery.ts): add return type void to scrollToActive function for clarity
fix(gallery.ts): add return type void to createGallery function for clarity
fix(gallery.ts): add passive option to close event listeners for click and keydown to improve performance
fix(gallery.ts): add passive option to overlay event listeners for click, keydown, mouseover, and focus to improve performance
fix(gallery.ts): add passive option to window event listener for touchstart to improve performance
fix(nav.ts): add return type void to initNav function for clarity
fix(utils.ts): add return type number to getRandom function for clarity
fix(utils.ts): add return type void to onVisible function for clarity
fix(utils.ts): add return type void to addWatcher function in Watchable class for clarity
2023-11-01 23:09:02 +08:00

95 lines
2.1 KiB
TypeScript

import { container } from '../container'
import { type ImageJSON } from '../resources'
import { setIndex } from '../state'
import { Watchable, getRandom, onVisible } from '../utils'
import { slideUp } from './gallery'
/**
* variables
*/
export let imgs: HTMLImageElement[] = []
export const mounted = new Watchable<boolean>(false)
/**
* main functions
*/
function handleClick(i: number): void {
setIndex(i)
slideUp()
}
/**
* init
*/
export function initCollection(ijs: ImageJSON[]): void {
createCollection(ijs)
// get container
const collection = document
.getElementsByClassName('collection')
.item(0) as HTMLDivElement
// add watcher
mounted.addWatcher(() => {
if (mounted.get()) {
collection.classList.remove('hidden')
} else {
collection.classList.add('hidden')
}
})
// get image elements
imgs = Array.from(collection.getElementsByTagName('img'))
// add event listeners
imgs.forEach((img, i) => {
img.addEventListener(
'click',
() => {
handleClick(i)
},
{ passive: true }
)
img.addEventListener(
'keydown',
() => {
handleClick(i)
},
{ passive: true }
)
// preload
onVisible(img, () => {
for (let _i = 0; _i < 5; _i++) {
const n = i + _i
if (n < 0 || n > imgs.length - 1) continue
imgs[n].src = imgs[n].dataset.src as string
}
})
})
}
/**
* helper
*/
function createCollection(ijs: ImageJSON[]): void {
// create container for images
const _collection: HTMLDivElement = document.createElement('div')
_collection.className = 'collection'
// append images to container
for (const [i, ij] of ijs.entries()) {
// random x and y
const x = i !== 0 ? getRandom(-25, 25) : 0
const y = i !== 0 ? getRandom(-30, 30) : 0
// element
const e = document.createElement('img')
e.dataset.src = ij.loUrl
e.height = ij.loImgH
e.width = ij.loImgW
e.alt = 'image'
e.style.transform = `translate3d(${x}%, ${y - 50}%, 0)`
_collection.append(e)
}
container.append(_collection)
}