Files
homepage.veen.world/app/cypress/e2e/fullscreen.spec.js
Kevin Veen-Birkenbach 3c899d971b fix(fullscreen): stop the recalc loop once the header stops animating
recalcWhileCollapsing ran a requestAnimationFrame loop and cancelled it on
the header's max-height transitionend. When no max-height transition ran,
for example because the header was already in its target state, that event
never fired and the loop recalculated the scroll container on every frame
for the rest of the page's life; each further call started another such
loop. The loop now continues only while header.getAnimations() reports a
running animation.

The resize handler entered or exited fullscreen on every resize event. It
now returns early when the UI fullscreen state already matches the body
class, so a resize that changes nothing starts no recalc loop.

A Cypress spec spies on adjustScrollContainerHeight after exitFullscreen()
and requires the call count to stop growing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-11 23:25:51 +02:00

98 lines
3.2 KiB
JavaScript

// cypress/e2e/fullscreen.spec.js
describe('Fullscreen Toggle', () => {
const ROOT = '/';
beforeEach(() => {
cy.visit(ROOT);
});
it('defaults to normal mode when no fullscreen param is present', () => {
// Body should not have fullscreen class
cy.get('body').should('not.have.class', 'fullscreen');
// URL should not include `fullscreen`
cy.url().should('not.include', 'fullscreen=');
// Header and footer should be visible (max-height > 0)
cy.get('header').should('have.css', 'max-height').and(value => {
expect(parseFloat(value)).to.be.greaterThan(0);
});
cy.get('footer').should('have.css', 'max-height').and(value => {
expect(parseFloat(value)).to.be.greaterThan(0);
});
});
it('initFullscreenFromUrl() picks up ?fullscreen=1 on load', () => {
cy.visit(`${ROOT}?fullscreen=1`);
cy.get('body').should('have.class', 'fullscreen');
cy.url().should('include', 'fullscreen=1');
// Header and footer should be collapsed (max-height == 0)
cy.get('header').should('have.css', 'max-height', '0px');
cy.get('footer').should('have.css', 'max-height', '0px');
});
it('enterFullscreen() adds fullscreen class, sets full width, and updates URL', () => {
cy.window().then(win => {
win.exitFullscreen(); // ensure starting state
win.enterFullscreen();
});
cy.get('body').should('have.class', 'fullscreen');
cy.url().should('include', 'fullscreen=1');
cy.get('.container, .container-fluid')
.should('have.class', 'container-fluid');
cy.get('header').should('have.css', 'max-height', '0px');
cy.get('footer').should('have.css', 'max-height', '0px');
});
it('exitFullscreen() removes fullscreen class, resets width, and URL param', () => {
// start in fullscreen
cy.window().invoke('enterFullscreen');
// then exit
cy.window().invoke('exitFullscreen');
cy.get('body').should('not.have.class', 'fullscreen');
cy.url().should('not.include', 'fullscreen=');
cy.get('.container, .container-fluid')
.should('have.class', 'container')
.and('not.have.class', 'container-fluid');
// Header and footer should be expanded again
cy.get('header').should('have.css', 'max-height').and(value => {
expect(parseFloat(value)).to.be.greaterThan(0);
});
cy.get('footer').should('have.css', 'max-height').and(value => {
expect(parseFloat(value)).to.be.greaterThan(0);
});
});
it('stops recalculating once the header has nothing left to animate', () => {
cy.window().then(win => {
cy.spy(win, 'adjustScrollContainerHeight').as('recalc');
win.exitFullscreen();
});
cy.wait(500);
cy.get('@recalc').then(spy => {
const settled = spy.callCount;
cy.wait(500).then(() => expect(spy.callCount).to.eq(settled));
});
});
it('toggleFullscreen() toggles into and out of fullscreen', () => {
// Toggle into fullscreen
cy.window().invoke('toggleFullscreen');
cy.get('body').should('have.class', 'fullscreen');
cy.url().should('include', 'fullscreen=1');
// Toggle back
cy.window().invoke('toggleFullscreen');
cy.get('body').should('not.have.class', 'fullscreen');
cy.url().should('not.include', 'fullscreen=');
});
});