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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| <div {{ attrs.render(class="copy") }}> | ||
| Website content copyright © <a href="https://jpscaletti.com">Juan-Pablo Scaletti</a>. | ||
| JinjaX and its documentation are licensed under the MIT license. | ||
| <p>Website © <a href="https://jpscaletti.com">Juan-Pablo Scaletti</a>.</p> | ||
| <p>JinjaX and the documentation text licensed under the MIT license.</p> | ||
| </div> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,49 +1,97 @@ | ||
| import { on } from "./jxui.js"; | ||
|
|
||
| const ACTIVE = "active"; | ||
| const SEL_TARGET = ".cd-toc-page a"; | ||
| const SEL_BACKTOTOP = ".cd-back-to-top" | ||
| const SEL_PAGETOC = ".cd-toc-page" | ||
| const SEL_TARGET = `${SEL_PAGETOC} a`; | ||
| const SEL_ACTIVE = `${SEL_TARGET}.${ACTIVE}`; | ||
| const SEL_SECTIONS = "main.page section[id]"; | ||
| const SEL_PAGE = "#main.page"; | ||
| const SEL_SECTIONS = `${SEL_PAGE} section[id]`; | ||
| const DESKTOP_THRESHOLD = 1024; | ||
|
|
||
| on("click", SEL_TARGET, handleClick); | ||
| on("click", SEL_BACKTOTOP, backToTop); | ||
|
|
||
| function handleClick (event, target) { | ||
| deActivateAll(); | ||
| target.classList.add(ACTIVE); | ||
| function handleClick(event, target) { | ||
| removeHighlight(); | ||
| setTimeout(function () { updateHighlight(target) }, 10); | ||
| } | ||
|
|
||
| /* =========================================================== */ | ||
| function updateHighlight (elem) { | ||
| if (window.innerWidth > DESKTOP_THRESHOLD && !elem?.classList.contains(ACTIVE)) { | ||
| removeHighlight(); | ||
| if (!elem) return; | ||
| elem.classList.add(ACTIVE); | ||
| } | ||
| } | ||
|
|
||
| function deActivateAll() { | ||
| function removeHighlight () { | ||
| document.querySelectorAll(SEL_ACTIVE).forEach(function (node) { | ||
| node.classList.remove(ACTIVE); | ||
| }); | ||
| } | ||
|
|
||
| function resetNavPosition () { | ||
| var pagetoc = document.querySelector(SEL_TOC); | ||
| pagetoc?.scroll({ top: 0 }); | ||
| } | ||
|
|
||
| export function backToTop () { | ||
| window.scrollTo({ top: 0, behavior: "smooth" }); | ||
| resetNavPosition(); | ||
| } | ||
|
|
||
| export function scrollSpy() { | ||
| const labels = {}; | ||
| Array.from(document.querySelectorAll(SEL_TARGET)).forEach(function(aNode){ | ||
| labels[aNode.href.split("#").slice(-1)] = aNode; | ||
| }); | ||
| const sections = Array.from(document.querySelectorAll(SEL_SECTIONS)); | ||
|
|
||
| function observe(entries) { | ||
| for(const entry of entries) { | ||
| if (entry.isIntersecting) { | ||
| const aNode = labels[entry.target.id]; | ||
| if (aNode) { | ||
| deActivateAll(); | ||
| aNode.classList.add(ACTIVE) | ||
| } | ||
| function matchingNavLink(elem) { | ||
| if (!elem) return; | ||
| var index = sections.indexOf(elem); | ||
|
|
||
| var match; | ||
| while (index >= 0 && !match) { | ||
| var sectionId = sections[index].getAttribute("id"); | ||
| if (sectionId) { | ||
| match = document.querySelector(`${SEL_PAGETOC} [href="#${sectionId}"]`); | ||
| } | ||
| index--; | ||
| } | ||
| return match; | ||
| } | ||
| const observer = new IntersectionObserver(observe, {rootMargin: "-50% 0px"}); | ||
| const sections = document.querySelectorAll(SEL_SECTIONS); | ||
| console.log(labels); | ||
| console.log(sections); | ||
| for (let i=0; i<sections.length; i++) { | ||
| observer.observe(sections[i]); | ||
|
|
||
| function belowBottomHalf(i) { | ||
| return i.boundingClientRect.bottom > (i.rootBounds.bottom + i.rootBounds.top) / 2; | ||
| } | ||
|
|
||
| function prevElem(elem) { | ||
| var index = sections.indexOf(elem); | ||
| if (index <= 0) { | ||
| return null; | ||
| } | ||
| return sections[index - 1]; | ||
| } | ||
|
|
||
| const PAGE_LOAD_BUFFER = 1000; | ||
|
|
||
| function navHighlight(entries) { | ||
| entries.forEach(function (entry) { | ||
| if (entry.isIntersecting) { | ||
| updateHighlight(matchingNavLink(entry.target)); | ||
| } else if (entry.time >= PAGE_LOAD_BUFFER && belowBottomHalf(entry)) { | ||
| updateHighlight(matchingNavLink(prevElem(entry.target))); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| const observer = new IntersectionObserver(navHighlight, { | ||
| threshold: 0, | ||
| rootMargin: "0% 0px -95% 0px" | ||
| }); | ||
|
|
||
| sections.forEach(function (elem) { | ||
| observer.observe(elem); | ||
| }) | ||
| observer.observe(document.querySelector(SEL_PAGE)); | ||
| } | ||
|
|
||
| document.addEventListener("DOMContentLoaded", scrollSpy); |