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Code Issues Projects Releases Wiki Activity

feat(tabs_bar): Avoid optimization for non-touch devices (#4444)

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* fix(tabs_bar): Check if transition is necessary

* feat(tabs_bar): Only apply optimization for touch devices
This commit is contained in:
Sorin Davidoi 2017-07-29 21:20:34 +02:00 committed by Eugen Rochko
parent 990cea471e
commit 4f04981dde
1 changed files with 25 additions and 17 deletions
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42
app/javascript/mastodon/features/ui/components/tabs_bar.js
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@ -3,6 +3,7 @@ import PropTypes from 'prop-types';
import NavLink from 'react-router-dom/NavLink'; import NavLink from 'react-router-dom/NavLink';
import { FormattedMessage, injectIntl } from 'react-intl'; import { FormattedMessage, injectIntl } from 'react-intl';
import { debounce } from 'lodash'; import { debounce } from 'lodash';
import { isUserTouching } from '../../../is_mobile';
export const links = [ export const links = [
<NavLink className='tabs-bar__link primary' to='/statuses/new' data-preview-title-id='tabs_bar.compose' data-preview-icon='pencil' ><i className='fa fa-fw fa-pencil' /><FormattedMessage id='tabs_bar.compose' defaultMessage='Compose' /></NavLink>, <NavLink className='tabs-bar__link primary' to='/statuses/new' data-preview-title-id='tabs_bar.compose' data-preview-icon='pencil' ><i className='fa fa-fw fa-pencil' /><FormattedMessage id='tabs_bar.compose' defaultMessage='Compose' /></NavLink>,
@ -39,27 +40,34 @@ export default class TabsBar extends React.Component {
} }
handleClick = (e) => { handleClick = (e) => {
e.preventDefault(); // Only apply optimization for touch devices, which we assume are slower
e.persist(); // We thus avoid the 250ms delay for non-touch devices and the lag for touch devices
if (isUserTouching()) {
e.preventDefault();
e.persist();
requestAnimationFrame(() => { requestAnimationFrame(() => {
const tabs = Array(...this.node.querySelectorAll('.tabs-bar__link')); const tabs = Array(...this.node.querySelectorAll('.tabs-bar__link'));
const currentTab = tabs.find(tab => tab.classList.contains('active')); const currentTab = tabs.find(tab => tab.classList.contains('active'));
const nextTab = tabs.find(tab => tab.contains(e.target)); const nextTab = tabs.find(tab => tab.contains(e.target));
const { props: { to } } = links[Array(...this.node.childNodes).indexOf(nextTab)]; const { props: { to } } = links[Array(...this.node.childNodes).indexOf(nextTab)];
if (currentTab) {
currentTab.classList.remove('active');
}
const listener = debounce(() => { if (currentTab !== nextTab) {
nextTab.removeEventListener('transitionend', listener); if (currentTab) {
this.context.router.history.push(to); currentTab.classList.remove('active');
}, 50); }
nextTab.addEventListener('transitionend', listener); const listener = debounce(() => {
nextTab.classList.add('active'); nextTab.removeEventListener('transitionend', listener);
}); this.context.router.history.push(to);
}, 50);
nextTab.addEventListener('transitionend', listener);
nextTab.classList.add('active');
}
});
}
} }