Arash_M
65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
"use strict"
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const blurFilter = "blur(6px)"
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let textToBlur = ""
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// Search this DOM node for text to blur and blur the parent element if found.
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function processNode(node) {
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if (node.childNodes.length > 0) {
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Array.from(node.childNodes).forEach(processNode)
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}
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if (node.nodeType === Node.TEXT_NODE &&
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node.textContent !== null && node.textContent.trim().length > 0) {
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const parent = node.parentElement
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if (parent !== null &&
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(parent.tagName === 'SCRIPT' || parent.style.filter === blurFilter)) {
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// Already blurred
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return
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}
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if (node.textContent.includes(textToBlur)) {
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blurElement(parent)
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}
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}
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}
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function blurElement(elem) {
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elem.style.filter = blurFilter
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console.debug("blurred id:" + elem.id + " class:" + elem.className +
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" tag:" + elem.tagName + " text:" + elem.textContent)
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}
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// Create a MutationObserver to watch for changes to the DOM.
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const observer = new MutationObserver((mutations) => {
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mutations.forEach((mutation) => {
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if (mutation.addedNodes.length > 0) {
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mutation.addedNodes.forEach(processNode)
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} else {
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processNode(mutation.target)
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}
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})
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})
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// Enable the content script by default.
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let enabled = true
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const keys = ["enabled", "item"]
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chrome.storage.sync.get(keys, (data) => {
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if (data.enabled === false) {
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enabled = false
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}
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if (data.item) {
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textToBlur = data.item
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}
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// Only start observing the DOM if the extension is enabled and there is text to blur.
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if (enabled && textToBlur.trim().length > 0) {
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observer.observe(document, {
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attributes: false,
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characterData: true,
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childList: true,
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subtree: true,
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})
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// Loop through all elements on the page for initial processing.
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processNode(document)
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}
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})
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