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Add Prettier and prettier pre-commit hook #36

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Merged
kendallgassner merged 2 commits into from
Jul 11, 2022
Merged

Add Prettier and prettier pre-commit hook #36

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66f77a6
add prettier + pre-commit prettier hook
kendallgassner Jul 11, 2022
33ef42f
run prettier
kendallgassner Jul 11, 2022
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1 change: 1 addition & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
node_modules/
4 changes: 4 additions & 0 deletions .husky/pre-commit
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@@ -0,0 +1,4 @@
#!/usr/bin/env sh
. "$(dirname -- "$0")/_/husky.sh"

npx pretty-quick --staged
15 changes: 9 additions & 6 deletions background.js
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@@ -1,6 +1,9 @@
chrome.webNavigation.onHistoryStateUpdated.addListener(function(details) {
console.log("onHistoryStateUpdated", details);
chrome.tabs.sendMessage(details.tabId, {
type: 'navigation'
});
}, {url: [{hostSuffix: 'github.com'}]});
chrome.webNavigation.onHistoryStateUpdated.addListener(
function (details) {
console.log("onHistoryStateUpdated", details);
chrome.tabs.sendMessage(details.tabId, {
type: "navigation",
});
},
{ url: [{ hostSuffix: "github.com" }] }
);
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@kendallgassner kendallgassner Jul 11, 2022

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nothing changed here just re-formatting

104 changes: 61 additions & 43 deletions contentScript.js
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@@ -1,85 +1,103 @@
/* Default. Places heading at end of line */
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Collaborator Author

@kendallgassner kendallgassner Jul 11, 2022

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nothing changed here just re-formatting

function addHeadingToBack(heading, headingPrefix) {
headingPrefix.classList.add('github-a11y-heading-prefix', 'github-a11y-heading-prefix-after');
headingPrefix.classList.add(
"github-a11y-heading-prefix",
"github-a11y-heading-prefix-after"
);
headingPrefix.textContent = ` ${heading.tagName.toLowerCase()}`;
heading.classList.add('github-a11y-heading', 'github-a11y-heading-after');
heading.classList.add("github-a11y-heading", "github-a11y-heading-after");
heading.append(headingPrefix);
}

/* Places heading in front of line */
function addHeadingToFront(heading, headingPrefix) {
headingPrefix.textContent = `${heading.tagName.toLowerCase()} `;
headingPrefix.classList.add('github-a11y-heading-prefix');
heading.classList.add('github-a11y-heading');
headingPrefix.classList.add("github-a11y-heading-prefix");
heading.classList.add("github-a11y-heading");
heading.insertBefore(headingPrefix, heading.firstChild);
}

/* Append accessibility info to DOM */
function appendAccessibilityInfo() {
const outdatedElements = document.querySelectorAll('.github-a11y-heading-prefix, .github-a11y-img-caption')
const outdatedElements = document.querySelectorAll(
".github-a11y-heading-prefix, .github-a11y-img-caption"
);
for (const element of outdatedElements) {
element.remove();
}

document.querySelectorAll('.markdown-body').forEach(function(commentBody) {
commentBody.querySelectorAll('img').forEach(function(image) {
const parent = image.closest('a');
if (!parent || image.closest('animated-image')) return
document.querySelectorAll(".markdown-body").forEach(function (commentBody) {
commentBody.querySelectorAll("img").forEach(function (image) {
const parent = image.closest("a");
if (!parent || image.closest("animated-image")) return;

validateImages(parent, image)
validateImages(parent, image);
});

commentBody.querySelectorAll('animated-image').forEach(function(animatedImage) {
validateImagesInsideAnimatedPlayer(animatedImage)
});

commentBody.querySelectorAll('h1, h2, h3, h4, h5, h6').forEach(function(heading) {
const headingPrefix = document.createElement('span');
headingPrefix.setAttribute('aria-hidden', 'true');
commentBody
.querySelectorAll("animated-image")
.forEach(function (animatedImage) {
validateImagesInsideAnimatedPlayer(animatedImage);
});

addHeadingToBack(heading, headingPrefix); // Swappable with `addHeadingToFront`
});
commentBody
.querySelectorAll("h1, h2, h3, h4, h5, h6")
.forEach(function (heading) {
const headingPrefix = document.createElement("span");
headingPrefix.setAttribute("aria-hidden", "true");

addHeadingToBack(heading, headingPrefix); // Swappable with `addHeadingToFront`
});
});
}

function validateImages(parent, image) {
const altText = image.getAttribute('alt') ? image.getAttribute('alt').trim() : "";
const parentAriaLabel = parent.getAttribute('aria-label') && parent.getAttribute('aria-label').trim()

if (!image.hasAttribute('alt') || altText === "" && !parentAriaLabel) {
image.classList.add('github-a11y-img-missing-alt')
const altText = image.getAttribute("alt")
? image.getAttribute("alt").trim()
: "";
const parentAriaLabel =
parent.getAttribute("aria-label") &&
parent.getAttribute("aria-label").trim();

if (!image.hasAttribute("alt") || (altText === "" && !parentAriaLabel)) {
image.classList.add("github-a11y-img-missing-alt");
} else {
const subtitle = createSubtitleElement();
parent.classList.add('github-a11y-img-container');
parent.classList.add("github-a11y-img-container");

if (parentAriaLabel) {
subtitle.textContent = parentAriaLabel;
} else {
subtitle.textContent = altText;
}

image.insertAdjacentElement('afterend', subtitle);
image.insertAdjacentElement("afterend", subtitle);
}
}

function createSubtitleElement() {
const subtitle = document.createElement('span');
subtitle.setAttribute('aria-hidden', 'true');
subtitle.classList.add('github-a11y-img-caption', 'github-a11y-img-caption-with-alt');

return subtitle
const subtitle = document.createElement("span");
subtitle.setAttribute("aria-hidden", "true");
subtitle.classList.add(
"github-a11y-img-caption",
"github-a11y-img-caption-with-alt"
);

return subtitle;
}

function validateImagesInsideAnimatedPlayer(animatedImage) {
const image = animatedImage.querySelector('img');
const altText = image.getAttribute('alt') ? image.getAttribute('alt').trim() : "";
const image = animatedImage.querySelector("img");
const altText = image.getAttribute("alt")
? image.getAttribute("alt").trim()
: "";

if (!image.hasAttribute('alt') || altText === "") {
animatedImage.classList.add('github-a11y-img-missing-alt')
if (!image.hasAttribute("alt") || altText === "") {
animatedImage.classList.add("github-a11y-img-missing-alt");
} else {
const subtitle = createSubtitleElement();
subtitle.textContent = altText;
animatedImage.classList.add('github-a11y-img-container');
animatedImage.classList.add("github-a11y-img-container");
animatedImage.appendChild(subtitle);
}
}
Expand All @@ -93,27 +111,27 @@ appendAccessibilityInfo();

/* Debounce to avoid redundant appendAccessibilityInfo calls */
let timer;
let observer = new MutationObserver(function(mutationList) {
let observer = new MutationObserver(function (mutationList) {
if (timer) clearTimeout(timer);
timer = setTimeout(() => {
for (const mutation of mutationList) {
observer.disconnect();
if (mutation.target.closest('.markdown-body, .js-commit-preview')) {
if (mutation.target.closest(".markdown-body, .js-commit-preview")) {
appendAccessibilityInfo();
}
observe();
}
}, 100);
})
});

const observe = ()=> {
const observe = () => {
observer.observe(document.body, {
childList: true,
subtree: true
subtree: true,
});
};

document.addEventListener('turbo:load', () => {
document.addEventListener("turbo:load", () => {
appendAccessibilityInfo();
observe();
})
});
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