CODEWITHSUNDEEP
javascripthtmlgoogle-chrome-extension
Chris McFarland
Chris McFarland

Reputation: 6169

Chrome New Tab Page extension steal focus from the address bar

With Chrome 27, it seems that extensions that override Chrome's New Tab Page can't take focus away from Chrome's Omnibox like they used to in previous versions of Chrome.

Is there a new way to focus an input box in a New Tab Page, or has this functionality been disabled completely? :(

To test this, create an extension folder with three files:

1. manifest.json:

{
    "name": "Focus Test",
    "version": "0",
    "minimum_chrome_version": "27",
    "chrome_url_overrides": {
        "newtab": "newTab.html"
    },
    "manifest_version": 2
}

2. focus.js:

document.getElementById('foo').focus();

3. newTab.html:

<html>
    <body>
        <input id="foo" type="text" />
        <script type="text/javascript" src="focus.js"></script>
    </body>
</html>

Then, when you load the extension and open a new tab, the input field does not get focused on the new tab page.

I have also tried adding the autofocus attribute to the input field, but no luck either. The extension's new tab page can't take focus away from Chrome's Omnibox.

Any ideas? Is this a bug or a new "feature"?

Upvotes: 11

Views: 5166

Answers (4)

Kristiyan Tsvetanov
Kristiyan Tsvetanov

Reputation: 1047

Here's the solution for Manifest v3

chrome.tabs.onCreated.addListener((tab) => {
  if (tab.pendingUrl === 'chrome://newtab/') {
    chrome.tabs.remove(tab.id)
    chrome.tabs.create({
      url: '/index.html',
    })
  }
})

I saw a pretty old blog which updates the new tab conditionally. However, simply updating the tab does not steal the focus. I had to close the pending tab and open a new one.

Cons: An ugly chrome-extension://akfdobdepdedlohhjdalbeadhkbelajj/index.html in the URL bar.

Upvotes: 1

Jimadine
Jimadine

Reputation: 1064

ManifestV3 update

This answer is adapted from https://stackoverflow.com/a/11348302/1754517.
This has been tested with both Manifest V2 and V3.
Tested in Google Chrome 99.0.4844.51 64-bit (Windows 10).

  1. Replace the content of focus.js with:
  if (location.search !== "?x") {
    location.search = "?x";
    throw new Error;  // load everything on the next page;
    // stop execution on this page
  }
  1. Add the autofocus attribute to the <input>.
  2. Go to the Extensions page in Chrome and click the Load unpacked button. Choose the folder of your extension.
  3. Open your new tab page. You might see a modal dialogue reading Change back to Google?. Click Keep it to keep your custom new tab page.
Inline Javascript - Manifest V2 only

If you're inlining the Javascript in the HTML file, then you'll need to take some extra steps:

  1. After adding your inline Javascript to your HTML file, open DevTools (F12 key) and observe the error output in the Console. Example output you should see:
Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' blob: filesystem:". 
Either the 'unsafe-inline' keyword, a hash ('sha256-MK0Gypb4mkZTI11eCOtWT+mGYcJNpN5zccvhfeaRb6E='), or a nonce ('nonce-...') is required to enable inline execution.
  1. Select & copy this hash.
  2. Add a line to manifest.json to allow the JS to run, pasting in the hash you just copied between the single-quotes. E.g.:
"content_security_policy": "script-src 'self' 'sha256-MK0Gypb4mkZTI11eCOtWT+mGYcJNpN5zccvhfeaRb6E='"
  1. Go to the Extensions page again. Remove the extension, then re-add it using the Load unpacked button.
  2. Open your new tab page. Your extension should now autofocus on the <input>.

Note inlining only works with Manifest V2; Manifest V3 returns a failure message when attempting to load the extension (even with a properly formed "content_security_policy" object in manifest.json, to replace the Manifest V2 "content_security_policy" string):

Failed to load extension
File C:\path\to\extension
Error 'content_security_policy.extension_pages': Insecure CSP value "'sha256-...'" in directive 'script-src'.
Could not load manifest.

Upvotes: 10

Acker Apple
Acker Apple

Reputation: 495

I have a cheap work around that allows stealing focus from address bar focus. It's not for everyone. I do actually do use this because I want to control a new tab focus just that bad in my own custom new tab solution:

<script>
  alert('Use enter key to cancel this alert and then I will control your focus');

  document.getElementById('...AckerAppleIsCrafty...').focus()
</script>

USE CASE: I built my own HTML chrome custom tab that has a search input that custom searches my history and bookmarks the way I like it too.

Cash me focusing outside how bout dat?

Upvotes: 0

John Woodruff
John Woodruff

Reputation: 1666

As per the Chrome Extension Documentation,

Don't rely on the page having the keyboard focus. The address bar always gets the focus first when the user creates a new tab.

See reference here: Override Pages

Upvotes: 4

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