Top 10 Examples of "body-scroll-lock in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'body-scroll-lock' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
preventScrolling () {
if (this.locked) return;
// body 操作
const body = document.getElementsByTagName('body')[0];
disableBodyScroll(body, {
reserveScrollBarGap: true,
allowTouchMove: (el) => {
for (let i = 0; i < this.instances.length; i++) {
if (
this.instances[i] &&
this.instances[i].$el &&
this.instances[i].$el.contains(el)
) {
return true;
}
}
return false;
}
});
this.locked = true;
},// Increment modal count when opening.
if (state) {
numberOfModalsOpen += 1;
}
// Add toggle body class and update body padding if there is only one modal open.
if (numberOfModalsOpen === 1) {
// Toggle open class.
toggleClass(body, 'tg-modal-open', state);
const { bodyScrollLock } = this.props;
if (state) {
if (bodyScrollLock && this.node.current) {
disableBodyScroll(this.node.current, {
reserveScrollBarGap: true,
});
}
} else if (bodyScrollLock && this.node.current) {
clearAllBodyScrollLocks();
}
}
// Decrement modal count when closing.
if (!state) {
numberOfModalsOpen = Math.max(numberOfModalsOpen - 1, 0);
}
}
}// Add toggle body class and update body padding if there is only one modal open.
if (numberOfModalsOpen === 1) {
// Toggle open class.
toggleClass(body, 'tg-modal-open', state);
const { bodyScrollLock } = this.props;
if (state) {
if (bodyScrollLock && this.node.current) {
disableBodyScroll(this.node.current, {
reserveScrollBarGap: true,
});
}
} else if (bodyScrollLock && this.node.current) {
clearAllBodyScrollLocks();
}
}
// Decrement modal count when closing.
if (!state) {
numberOfModalsOpen = Math.max(numberOfModalsOpen - 1, 0);
}
}
}componentWillUnmount() {
// restauration function can be undefined if there was
// an error during mounting/rendering
clearAllBodyScrollLocks()
if (this.props.onEscape) {
document.removeEventListener('keydown', this.handleKeydown)
}
}it('clears body scroll lock when shouldLockBgScroll is true', () => {
component = shallow(
<dialog>
);
component.instance().componentWillUnmount();
expect(enableBodyScroll.mock.calls.length).toBe(1);
expect(enableBodyScroll.mock.calls[0][0]).toBe('scrollTarget2');
expect(clearAllBodyScrollLocks.mock.calls.length).toBe(1);
});
</dialog>it('clears body scroll lock when shouldLockBgScroll changes to false', () => {
component = shallow(
<dialog>
);
component.instance().componentDidUpdate({ shouldLockBgScroll: true });
expect(enableBodyScroll.mock.calls.length).toBe(1);
expect(enableBodyScroll.mock.calls[0][0]).toBe('scrollTarget1');
expect(clearAllBodyScrollLocks.mock.calls.length).toBe(1);
});
</dialog>it('adds body scroll lock when shouldLockBgScroll changes to true', () => {
component = shallow(<dialog>);
component.instance().componentDidUpdate({ shouldLockBgScroll: false });
expect(disableBodyScroll.mock.calls.length).toBe(1);
});
</dialog>it('adds body scroll lock when transitionState changes to "entered" and shouldLockBgScroll is true', () => {
component = shallow(
<dialog>
);
component.instance().componentDidUpdate({
shouldLockBgScroll: true,
transitionState: 'entering'
});
expect(disableBodyScroll.mock.calls.length).toBe(1);
});
});</dialog>it('calls disableBodyScroll and clearAllBodyScrollLocks', () => {
component = shallow(
<dialog>
);
component.instance().unlockBgScroll();
expect(enableBodyScroll.mock.calls.length).toBe(1);
expect(enableBodyScroll.mock.calls[0][0]).toBe('scrollTarget4');
expect(clearAllBodyScrollLocks.mock.calls.length).toBe(1);
});
});</dialog>it('clears body scroll lock when shouldLockBgScroll changes to false', () => {
component = shallow(
<dialog>
);
component.instance().componentDidUpdate({ shouldLockBgScroll: true });
expect(enableBodyScroll.mock.calls.length).toBe(1);
expect(enableBodyScroll.mock.calls[0][0]).toBe('scrollTarget1');
expect(clearAllBodyScrollLocks.mock.calls.length).toBe(1);
});
</dialog>