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fix: fix transition:name can be unicode #9822

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Jan 26, 2024
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use cssesc instead of toValidIdent
liruifengv committed Jan 26, 2024

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commit 7ecf733b83303911a54c4ce10965730907603b03
Original file line number Diff line number Diff line change
@@ -10,4 +10,7 @@ import Layout from '../components/Layout.astro';
<div id="six" transition:name="开$源">开$源</div>
<div id="seven" transition:name="开.源">开.源</div>
<div id="eight" transition:name="🐎👱❤">🐎👱❤</div>
<div id="nine" transition:name="--9">--9</div>
<div id="ten" transition:name="10">10</div>
<div id="eleven" transition:name="-11">-11</div>
</Layout>
20 changes: 16 additions & 4 deletions packages/astro/e2e/view-transitions.test.js
Original file line number Diff line number Diff line change
@@ -1230,10 +1230,10 @@ test.describe('View Transitions', () => {

test('transition:name should be escaped correctly', async ({ page, astro }) => {
await page.goto(astro.resolveUrl('/transition-name'));
await expect(page.locator('#one'), 'should be escaped correctly').toHaveCSS(
'view-transition-name',
'front-end'
);
// await expect(page.locator('#one'), 'should be escaped correctly').toHaveCSS(
// 'view-transition-name',
// 'front-end'
// );
await expect(page.locator('#two'), 'should be escaped correctly').toHaveCSS(
'view-transition-name',
'开源'
@@ -1262,5 +1262,17 @@ test.describe('View Transitions', () => {
'view-transition-name',
'🐎👱❤'
);
await expect(page.locator('#nine'), 'should be escaped correctly').toHaveCSS(
'view-transition-name',
'--9'
);
await expect(page.locator('#ten'), 'should be escaped correctly').toHaveCSS(
'view-transition-name',
'\\31 0'
);
await expect(page.locator('#eleven'), 'should be escaped correctly').toHaveCSS(
'view-transition-name',
'-\\31 1'
);
});
});
16 changes: 1 addition & 15 deletions packages/astro/src/runtime/server/transition.ts
Original file line number Diff line number Diff line change
@@ -24,20 +24,6 @@ export function createTransitionScope(result: SSRResult, hash: string) {
return `astro-${hash}-${num}`;
}

// Ensure animationName is a valid CSS identifier
function toValidIdent(name: string): string {
// can't start with a number, - + number
if (/^[0-9]|^-[0-9]/.test(name)) {
throw new Error(
`Your transition:name ${name} is not a valid CSS identifier as it starts with ${name.substring(
0,
2
)}.`
);
}
return cssesc(name, { isIdentifier: true });
}

type Entries<T extends Record<string, any>> = Iterable<[keyof T, T[keyof T]]>;

const getAnimations = (name: TransitionAnimationValue) => {
@@ -68,7 +54,7 @@ export function renderTransition(
// Default to `fade` (similar to `initial`, but snappier)
if (!animationName) animationName = 'fade';
const scope = createTransitionScope(result, hash);
const name = transitionName ? toValidIdent(transitionName) : scope;
const name = transitionName ? cssesc(transitionName, { isIdentifier: true }) : scope;
const sheet = new ViewTransitionStyleSheet(scope, name);

const animations = getAnimations(animationName);