From fcd5d2807d2bab68c6776e031e85d65fe88a6f7a Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Wed, 16 Feb 2022 00:39:14 +0000
Subject: [PATCH] feat: dynamically fetch indices
---
layouts/partials/search.html | 323 +++++++++++++++++++++++++++--------------------------
1 files changed, 164 insertions(+), 159 deletions(-)
diff --git a/layouts/partials/search.html b/layouts/partials/search.html
index 0c853a0..c2ff77f 100644
--- a/layouts/partials/search.html
+++ b/layouts/partials/search.html
@@ -67,189 +67,194 @@
};
</script>
<script>
- const contentIndex = new FlexSearch.Document({
- cache: true,
- charset: "latin:extra",
- optimize: true,
- worker: true,
- document: {
- index: [{
- field: "content",
- tokenize: "strict",
- context: {
- resolution: 5,
- depth: 3,
- bidirectional: true
- },
- suggest: true,
- }, {
- field: "title",
- tokenize: "forward",
- }]
- }
+async function run() {
+ const contentIndex = new FlexSearch.Document({
+ cache: true,
+ charset: "latin:extra",
+ optimize: true,
+ worker: true,
+ document: {
+ index: [{
+ field: "content",
+ tokenize: "strict",
+ context: {
+ resolution: 5,
+ depth: 3,
+ bidirectional: true
+ },
+ suggest: true,
+ }, {
+ field: "title",
+ tokenize: "forward",
+ }]
+ }
+ })
+
+ const { content } = await fetchData()
+ for (const [key, value] of Object.entries(content)) {
+ contentIndex.add({
+ id: key,
+ title: value.title,
+ content: removeMarkdown(value.content),
})
+ }
- for (const [key, value] of Object.entries(content)) {
- contentIndex.add({
- id: key,
- title: value.title,
- content: removeMarkdown(value.content),
- })
+ const highlight = (content, term) => {
+ const highlightWindow = 20
+ const tokenizedTerm = term.split(/\s+/).filter(t => t !== "")
+ const splitText = content.split(/\s+/).filter(t => t !== "")
+ const includesCheck = (token) => tokenizedTerm.some(term => token.toLowerCase().startsWith(term.toLowerCase()))
+
+ const occurrencesIndices = splitText
+ .map(includesCheck)
+
+ // calculate best index
+ let bestSum = 0
+ let bestIndex = 0
+ for (let i = 0; i < Math.max(occurrencesIndices.length - highlightWindow, 0); i++) {
+ const window = occurrencesIndices.slice(i, i + highlightWindow)
+ const windowSum = window.reduce((total, cur) => total + cur, 0)
+ if (windowSum >= bestSum) {
+ bestSum = windowSum
+ bestIndex = i
+ }
}
- const highlight = (content, term) => {
- const highlightWindow = 20
- const tokenizedTerm = term.split(/\s+/).filter(t => t !== "")
- const splitText = content.split(/\s+/).filter(t => t !== "")
- const includesCheck = (token) => tokenizedTerm.some(term => token.toLowerCase().startsWith(term.toLowerCase()))
-
- const occurrencesIndices = splitText
- .map(includesCheck)
-
- // calculate best index
- let bestSum = 0
- let bestIndex = 0
- for (let i = 0; i < Math.max(occurrencesIndices.length - highlightWindow, 0); i++) {
- const window = occurrencesIndices.slice(i, i + highlightWindow)
- const windowSum = window.reduce((total, cur) => total + cur, 0)
- if (windowSum >= bestSum) {
- bestSum = windowSum
- bestIndex = i
- }
+ const startIndex = Math.max(bestIndex - highlightWindow, 0)
+ const endIndex = Math.min(startIndex + 2 * highlightWindow, splitText.length)
+ const mappedText = splitText
+ .slice(startIndex, endIndex)
+ .map(token => {
+ if (includesCheck(token)) {
+ return `<span class="search-highlight">${token}</span>`
}
+ return token
+ })
+ .join(" ")
+ .replaceAll('</span> <span class="search-highlight">', " ")
+ return `${startIndex === 0 ? "" : "..."}${mappedText}${endIndex === splitText.length ? "" : "..."}`
+ }
- const startIndex = Math.max(bestIndex - highlightWindow, 0)
- const endIndex = Math.min(startIndex + 2 * highlightWindow, splitText.length)
- const mappedText = splitText
- .slice(startIndex, endIndex)
- .map(token => {
- if (includesCheck(token)) {
- return `<span class="search-highlight">${token}</span>`
- }
- return token
- })
- .join(" ")
- .replaceAll('</span> <span class="search-highlight">', " ")
- return `${startIndex === 0 ? "" : "..."}${mappedText}${endIndex === splitText.length ? "" : "..."}`
- }
-
- const resultToHTML = ({url, title, content, term}) => {
- const text = removeMarkdown(content)
- const resultTitle = highlight(title, term)
- const resultText = highlight(text, term)
- return `<button class="result-card" id="${url}">
+ const resultToHTML = ({url, title, content, term}) => {
+ const text = removeMarkdown(content)
+ const resultTitle = highlight(title, term)
+ const resultText = highlight(text, term)
+ return `<button class="result-card" id="${url}">
<h3>${resultTitle}</h3>
<p>${resultText}</p>
</button>`
+ }
+
+ const redir = (id, term) => {
+ window.location.href = "{{.Site.BaseURL}}" + `${id}#:~:text=${encodeURIComponent(term)}`
+ }
+
+ const formatForDisplay = id => ({
+ id,
+ url: id,
+ title: content[id].title,
+ content: content[id].content
+ })
+
+ const source = document.getElementById('search-bar')
+ const results = document.getElementById("results-container")
+ let term
+ source.addEventListener("keyup", (e) => {
+ if (e.key === "Enter") {
+ const anchor = document.getElementsByClassName("result-card")[0]
+ redir(anchor.id, term)
}
-
- const redir = (id, term) => {
- window.location.href = "{{.Site.BaseURL}}" + `${id}#:~:text=${encodeURIComponent(term)}`
- }
-
- const fetch = id => ({
- id,
- url: id,
- title: content[id].title,
- content: content[id].content
- })
-
- const source = document.getElementById('search-bar')
- const results = document.getElementById("results-container")
- let term
- source.addEventListener("keyup", (e) => {
- if (e.key === "Enter") {
- const anchor = document.getElementsByClassName("result-card")[0]
- redir(anchor.id, term)
+ })
+ source.addEventListener('input', (e) => {
+ term = e.target.value
+ contentIndex.search(term, [
+ {
+ field: "content",
+ limit: 10,
+ suggest: true,
+ },
+ {
+ field: "title",
+ limit: 5,
+ }
+ ]).then(searchResults => {
+ const getByField = field => {
+ const results = searchResults.filter(x => x.field === field)
+ if (results.length === 0) {
+ return []
+ } else {
+ return [...results[0].result]
}
- })
- source.addEventListener('input', (e) => {
- term = e.target.value
- contentIndex.search(term, [
- {
- field: "content",
- limit: 10,
- suggest: true,
- },
- {
- field: "title",
- limit: 5,
- }
- ]).then(searchResults => {
- const getByField = field => {
- const results = searchResults.filter(x => x.field === field)
- if (results.length === 0) {
- return []
- } else {
- return [...results[0].result]
- }
- }
- const allIds = new Set([...getByField('title'), ...getByField('content')])
- const finalResults = [...allIds].map(fetch)
+ }
+ const allIds = new Set([...getByField('title'), ...getByField('content')])
+ const finalResults = [...allIds].map(formatForDisplay)
- // display
- if (finalResults.length === 0) {
- results.innerHTML = `<button class="result-card">
+ // display
+ if (finalResults.length === 0) {
+ results.innerHTML = `<button class="result-card">
<h3>No results.</h3>
<p>Try another search term?</p>
</button>`
- } else {
- results.innerHTML = finalResults
- .map(result => resultToHTML({
- ...result,
- term,
- }))
- .join("\n")
- const anchors = document.getElementsByClassName("result-card");
- [...anchors].forEach(anchor => {
- anchor.onclick = () => redir(anchor.id, term)
- })
- }
+ } else {
+ results.innerHTML = finalResults
+ .map(result => resultToHTML({
+ ...result,
+ term,
+ }))
+ .join("\n")
+ const anchors = document.getElementsByClassName("result-card");
+ [...anchors].forEach(anchor => {
+ anchor.onclick = () => redir(anchor.id, term)
})
+ }
})
+ })
- const searchContainer = document.getElementById("search-container")
- function openSearch() {
- if (searchContainer.style.display === "none" || searchContainer.style.display === "") {
- source.value = ""
- results.innerHTML = ""
- searchContainer.style.display = "block"
- source.focus()
- } else {
- searchContainer.style.display = "none"
- }
+ const searchContainer = document.getElementById("search-container")
+
+ function openSearch() {
+ if (searchContainer.style.display === "none" || searchContainer.style.display === "") {
+ source.value = ""
+ results.innerHTML = ""
+ searchContainer.style.display = "block"
+ source.focus()
+ } else {
+ searchContainer.style.display = "none"
}
+ }
- function closeSearch() {
- searchContainer.style.display = "none"
+ function closeSearch() {
+ searchContainer.style.display = "none"
+ }
+
+ document.addEventListener('keydown', (event) => {
+ if (event.key === "/") {
+ event.preventDefault()
+ openSearch()
}
+ if (event.key === "Escape") {
+ event.preventDefault()
+ closeSearch()
+ }
+ })
- document.addEventListener('keydown', (event) => {
- if (event.key === "/") {
- event.preventDefault()
- openSearch()
- }
- if (event.key === "Escape") {
- event.preventDefault()
- closeSearch()
- }
+ window.addEventListener('DOMContentLoaded', () => {
+ const searchButton = document.getElementById("search-icon")
+ searchButton.addEventListener('click', (evt) => {
+ openSearch()
})
-
- window.addEventListener('DOMContentLoaded', () => {
- const searchButton = document.getElementById("search-icon")
- searchButton.addEventListener('click', (evt) => {
- openSearch()
- })
- searchButton.addEventListener('keydown', (evt) => {
- openSearch()
- })
- searchContainer.addEventListener('click', (evt) => {
- closeSearch()
- })
- document.getElementById("search-space").addEventListener('click', (evt) => {
- evt.stopPropagation()
- })
+ searchButton.addEventListener('keydown', (evt) => {
+ openSearch()
})
+ searchContainer.addEventListener('click', (evt) => {
+ closeSearch()
+ })
+ document.getElementById("search-space").addEventListener('click', (evt) => {
+ evt.stopPropagation()
+ })
+ })
+}
+run()
</script>
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