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content.js
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content.js
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import * as domHelpers from './domHelpers.js'
import optionsStorage from '../global/options-storage.js'
const root = document.querySelector('div#root')
const body = document.querySelector('body')
let options = null
/**
* Process audio players in root
*/
const processAudioPlayers = () => {
const audioPlayers = root.querySelectorAll('div[class*=AudioBlock_root_]:not([data-complete=true])')
for (const player of audioPlayers) {
// Skip nodes from app/messages
if (player.classList.value.includes(['Messages_audioPlayer_'])) continue
domHelpers.injectAudioPlayerChanges(player, options)
player.dataset.complete = true
}
}
/**
* Process video players in root
*/
const processVideoPlayers = () => {
const videoPlayers = root.querySelectorAll('vk-video-player:not([data-complete=true])')
for (const player of videoPlayers) {
domHelpers.injectVkPlayerChanges(player, options)
player.dataset.complete = true
}
}
/**
* Inject extension icon to the top left menu
* @returns {boolean}
*/
const injectExtensionIcon = () => {
const topMenuLeft = body.querySelector('div[class*=TopMenu_left_]')
if (!topMenuLeft) {
console.warn('No topMenu found??? skipping for now')
return false
}
domHelpers.injectIconInTopMenu(topMenuLeft)
if (location.hash && location.hash.includes('mb_update')) {
location.href = '#'
const changelogButton = body.querySelector('a#MB_changelog')
changelogButton.click()
}
return true
}
/**
* Inject theater mode
*/
const processTheaterMode = (isActive = null) => {
if (!options.theater_mode) return
if (isActive) {
domHelpers.injectStreamPageChanges(isActive)
return
}
isActive = false
if (window.location.href.includes('/video_stream')) {
isActive = true
}
domHelpers.injectStreamPageChanges(isActive)
}
/**
* Inject full layout
*/
const injectFullLayout = () => {
if (options.full_layout) domHelpers.injectFullLayout()
}
/**
* Main function
* @async
*/
const main = async () => {
options = await optionsStorage.getAll()
if (!options) {
console.warn('no options???')
return
}
// 1. Permanent changes
const isExtensionIconInjected = injectExtensionIcon()
injectFullLayout()
processAudioPlayers()
processVideoPlayers()
processTheaterMode()
// 2. Dynamic changes
const observer = new MutationObserver((mutations, _observer) => {
try {
processAudioPlayers()
processVideoPlayers()
// Checks for streamer page
for (const mutation of mutations) {
if (!isExtensionIconInjected && mutation.target.id === 'root') {
console.debug('deffered injectExtensionIcon()')
injectExtensionIcon()
}
for (const node of mutation.addedNodes) {
if (node.classList?.value.includes('StreamPage_block_')) {
processTheaterMode(true)
}
}
for (const node of mutation.removedNodes) {
if (node.classList?.value.includes('StreamPage_block_')) {
processTheaterMode(false)
}
}
}
} catch (error) {
console.log('uncaught mutation error', error)
}
})
observer.observe(root, {
childList: true,
subtree: true
})
}
console.log('💈 Content script loaded for', chrome.runtime.getManifest().name)
main()