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Avoid duplicate JS error messages on UI (#28873)

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Gitea treat JS errors seriously, so sometimes the JS errors caused by
3rdparty code (eg: browser extensions) would also be reported on Gitea
UI: TypeError: WeakMap key undefined (caused by extension DarkReader's
bug) #28861

To avoid fill the user's screen with a lot of error messages, this PR
merges the same error messages into one, like this:

```js
<div class="page-content">
  <div class="... js-global-error" data-global-error-msg-compact="testmsg1" data-global-error-msg-count="2">test msg 1 (2)</div>
  <div class="... js-global-error" data-global-error-msg-compact="testmsg2" data-global-error-msg-count="1">test msg 2</div>
</div>
```
This commit is contained in:
wxiaoguang 2024-01-21 22:23:08 +08:00 • committed by GitHub
commit 5d09023f13
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3 changed files with 29 additions and 4 deletions
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19
web_src/js/bootstrap.js vendored
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@ -8,10 +8,21 @@ __webpack_public_path__ = `${window.config?.assetUrlPrefix ?? '/assets'}/`;
export function showGlobalErrorMessage(msg) {
const pageContent = document.querySelector('.page-content');
if (!pageContent) return;
const el = document.createElement('div');
el.innerHTML = `<div class="ui container negative message center aligned js-global-error" style="white-space: pre-line;"></div>`;
el.childNodes[0].textContent = msg;
pageContent.prepend(el.childNodes[0]);
// compact the message to a data attribute to avoid too many duplicated messages
const msgCompact = msg.replace(/\W/g, '').trim();
let msgDiv = pageContent.querySelector(`.js-global-error[data-global-error-msg-compact="${msgCompact}"]`);
if (!msgDiv) {
const el = document.createElement('div');
el.innerHTML = `<div class="ui container negative message center aligned js-global-error" style="white-space: pre-line;"></div>`;
msgDiv = el.childNodes[0];
}
// merge duplicated messages into "the message (count)" format
const msgCount = Number(msgDiv.getAttribute(`data-global-error-msg-count`)) + 1;
msgDiv.setAttribute(`data-global-error-msg-compact`, msgCompact);
msgDiv.setAttribute(`data-global-error-msg-count`, msgCount.toString());
msgDiv.textContent = msg + (msgCount > 1 ? ` (${msgCount})` : '');
pageContent.prepend(msgDiv);
}
/**

12
web_src/js/bootstrap.test.js vendored Normal file
View file

@ -0,0 +1,12 @@
import {showGlobalErrorMessage} from './bootstrap.js';
test('showGlobalErrorMessage', () => {
document.body.innerHTML = '<div class="page-content"></div>';
showGlobalErrorMessage('test msg 1');
showGlobalErrorMessage('test msg 2');
showGlobalErrorMessage('test msg 1'); // duplicated
expect(document.body.innerHTML).toContain('>test msg 1 (2)<');
expect(document.body.innerHTML).toContain('>test msg 2<');
expect(document.querySelectorAll('.js-global-error').length).toEqual(2);
});

2
web_src/js/test/setup.js
View file

@ -1,3 +1,5 @@
window.__webpack_public_path__ = '';
window.config = {
csrfToken: 'test-csrf-token-123456',
pageData: {},