diff options
author | Phil Hughes <me@iamphill.com> | 2017-08-19 00:37:26 +0300 |
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committer | Phil Hughes <me@iamphill.com> | 2017-08-19 00:37:26 +0300 |
commit | 5a12fa150833e8f9aabb23bd64aa0244b344d921 (patch) | |
tree | 145b1e6634469b0c330132269671aaa142d8e1aa /app | |
parent | f34faaba7c75bfc15f9995ef45dc78512a5b6932 (diff) |
Fixes the stable branches fly out nav JS
Diffstat (limited to 'app')
-rw-r--r-- | app/assets/javascripts/fly_out_nav.js | 145 |
1 files changed, 19 insertions, 126 deletions
diff --git a/app/assets/javascripts/fly_out_nav.js b/app/assets/javascripts/fly_out_nav.js index 1b61392aae3..0be44a27215 100644 --- a/app/assets/javascripts/fly_out_nav.js +++ b/app/assets/javascripts/fly_out_nav.js @@ -1,20 +1,6 @@ import Cookies from 'js-cookie'; import bp from './breakpoints'; -const HIDE_INTERVAL_TIMEOUT = 300; -const IS_OVER_CLASS = 'is-over'; -const IS_ABOVE_CLASS = 'is-above'; -const IS_SHOWING_FLY_OUT_CLASS = 'is-showing-fly-out'; -let currentOpenMenu = null; -let menuCornerLocs; -let timeoutId; - -export const mousePos = []; - -export const setOpenMenu = (menu = null) => { currentOpenMenu = menu; }; - -export const slope = (a, b) => (b.y - a.y) / (b.x - a.x); - let headerHeight = 50; export const getHeaderHeight = () => headerHeight; @@ -28,28 +14,8 @@ export const canShowActiveSubItems = (el) => { return true; }; - export const canShowSubItems = () => bp.getBreakpointSize() === 'sm' || bp.getBreakpointSize() === 'md' || bp.getBreakpointSize() === 'lg'; -export const getHideSubItemsInterval = () => { - if (!currentOpenMenu) return 0; - - const currentMousePos = mousePos[mousePos.length - 1]; - const prevMousePos = mousePos[0]; - const currentMousePosY = currentMousePos.y; - const [menuTop, menuBottom] = menuCornerLocs; - - if (currentMousePosY < menuTop.y || - currentMousePosY > menuBottom.y) return 0; - - if (slope(prevMousePos, menuBottom) < slope(currentMousePos, menuBottom) && - slope(prevMousePos, menuTop) > slope(currentMousePos, menuTop)) { - return HIDE_INTERVAL_TIMEOUT; - } - - return 0; -}; - export const calculateTop = (boundingRect, outerHeight) => { const windowHeight = window.innerHeight; const bottomOverflow = windowHeight - (boundingRect.top + outerHeight); @@ -58,120 +24,47 @@ export const calculateTop = (boundingRect, outerHeight) => { boundingRect.top; }; -export const hideMenu = (el) => { - if (!el) return; - - const parentEl = el.parentNode; +export const showSubLevelItems = (el) => { + const subItems = el.querySelector('.sidebar-sub-level-items'); - el.style.display = ''; // eslint-disable-line no-param-reassign - el.style.transform = ''; // eslint-disable-line no-param-reassign - el.classList.remove(IS_ABOVE_CLASS); - parentEl.classList.remove(IS_OVER_CLASS); - parentEl.classList.remove(IS_SHOWING_FLY_OUT_CLASS); + if (!subItems || !canShowSubItems() || !canShowActiveSubItems(el)) return; - setOpenMenu(); -}; + subItems.style.display = 'block'; + el.classList.add('is-showing-fly-out'); + el.classList.add('is-over'); -export const moveSubItemsToPosition = (el, subItems) => { const boundingRect = el.getBoundingClientRect(); const top = calculateTop(boundingRect, subItems.offsetHeight); const isAbove = top < boundingRect.top; subItems.classList.add('fly-out-list'); - subItems.style.transform = `translate3d(0, ${Math.floor(top) - headerHeight}px, 0)`; // eslint-disable-line no-param-reassign - - const subItemsRect = subItems.getBoundingClientRect(); - - menuCornerLocs = [ - { - x: subItemsRect.left, // left position of the sub items - y: subItemsRect.top, // top position of the sub items - }, - { - x: subItemsRect.left, // left position of the sub items - y: subItemsRect.top + subItemsRect.height, // bottom position of the sub items - }, - ]; + subItems.style.transform = `translate3d(0, ${Math.floor(top) - headerHeight}px, 0)`; if (isAbove) { - subItems.classList.add(IS_ABOVE_CLASS); + subItems.classList.add('is-above'); } }; -export const showSubLevelItems = (el) => { +export const hideSubLevelItems = (el) => { const subItems = el.querySelector('.sidebar-sub-level-items'); - if (!canShowSubItems() || !canShowActiveSubItems(el)) return; - - el.classList.add(IS_OVER_CLASS); + if (!subItems || !canShowSubItems() || !canShowActiveSubItems(el)) return; - if (!subItems) return; - - subItems.style.display = 'block'; - el.classList.add(IS_SHOWING_FLY_OUT_CLASS); - - setOpenMenu(subItems); - moveSubItemsToPosition(el, subItems); -}; - -export const mouseEnterTopItems = (el) => { - clearTimeout(timeoutId); - - timeoutId = setTimeout(() => { - if (currentOpenMenu) hideMenu(currentOpenMenu); - - showSubLevelItems(el); - }, getHideSubItemsInterval()); -}; - -export const mouseLeaveTopItem = (el) => { - const subItems = el.querySelector('.sidebar-sub-level-items'); - - if (!canShowSubItems() || !canShowActiveSubItems(el) || - (subItems && subItems === currentOpenMenu)) return; - - el.classList.remove(IS_OVER_CLASS); -}; - -export const documentMouseMove = (e) => { - mousePos.push({ - x: e.clientX, - y: e.clientY, - }); - - if (mousePos.length > 6) mousePos.shift(); + el.classList.remove('is-showing-fly-out'); + el.classList.remove('is-over'); + subItems.style.display = ''; + subItems.style.transform = ''; + subItems.classList.remove('is-above'); }; export default () => { - const sidebar = document.querySelector('.sidebar-top-level-items'); - - if (!sidebar) return; - - const items = [...sidebar.querySelectorAll('.sidebar-top-level-items > li')]; - - sidebar.addEventListener('mouseleave', () => { - clearTimeout(timeoutId); - - timeoutId = setTimeout(() => { - if (currentOpenMenu) hideMenu(currentOpenMenu); - }, getHideSubItemsInterval()); - }); + const items = [...document.querySelectorAll('.sidebar-top-level-items > li')] + .filter(el => el.querySelector('.sidebar-sub-level-items')); headerHeight = document.querySelector('.nav-sidebar').offsetTop; items.forEach((el) => { - const subItems = el.querySelector('.sidebar-sub-level-items'); - - if (subItems) { - subItems.addEventListener('mouseleave', () => { - clearTimeout(timeoutId); - hideMenu(currentOpenMenu); - }); - } - - el.addEventListener('mouseenter', e => mouseEnterTopItems(e.currentTarget)); - el.addEventListener('mouseleave', e => mouseLeaveTopItem(e.currentTarget)); + el.addEventListener('mouseenter', e => showSubLevelItems(e.currentTarget)); + el.addEventListener('mouseleave', e => hideSubLevelItems(e.currentTarget)); }); - - document.addEventListener('mousemove', documentMouseMove); }; |