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search.html
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search.html
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{% extends "layout.html" %}
{% set title = _('Search') %}
{% block body %}
<noscript>
<div id="fallback" class="admonition warning">
<p class="last">
{% trans trimmed %}Please activate JavaScript to enable the search
functionality.{% endtrans %}
</p>
</div>
</noscript>
<div id="search-results">
</div>
<nav id="pagination" class="pagination" aria-label="pagination" hidden="true" >
<button class="pagination-previous" id="pagination-previous">
← Previous
</button>
<ul class="pagination-list"></ul>
<button class="pagination-next" id="pagination-next">
Next →
</button>
</nav>
{% endblock %}
{% block footer %}
{{ super() }}
<script>
function runSearchPageSearch(page) {
const urlParams = new URLSearchParams(window.location.search)
const query = urlParams.get('q')
const searchResultsContainer = document.getElementById('search-results')
// Erase previous results
searchResultsContainer.innerHTML = ""
document.querySelector('.pagination-list').innerHTML = ""
addHeadingForQuery(query, searchResultsContainer)
const docSearch = docSearchReady()
const index = docSearch.client.initIndex('wagtail')
index.search(
query,
{
hitsPerPage: 100,
page: page,
facetFilters: [getVersionFacetFilter()]
}
)
.then(result => {
// Display pagination if more than 1 page returned
let nbPages = result["nbPages"]
if (nbPages > 1) {
document.querySelector("#pagination").hidden = false;
displayPagination(page, nbPages)
}
// Display hits
let hits = result["hits"]
addResultsList(hits, query, searchResultsContainer)
})
.catch((error) => console.log(error))
}
function displayPagination(page, totalPages) {
const pagination = document.querySelector("#pagination")
const paginationList = pagination.querySelector(".pagination-list")
// Hide previous/next button if showing first/last page
pagination.querySelector(".pagination-previous").hidden = false;
pagination.querySelector(".pagination-previous").hidden = page === 0;
pagination.querySelector(".pagination-next").hidden = page === totalPages -1;
// Display at most "toBeDisplayed" page links in the paginator
const toBeDisplayed = 7
let [start, end] = setStartEndForPaginator(page, totalPages, toBeDisplayed)
for (let i = start; i < end; i++) {
let newPaginationItem = document.createElement("li")
let newPaginationbutton = document.createElement("button")
newPaginationbutton.classList.add("pagination-button")
newPaginationbutton.innerHTML = i + 1
if (i == page) {
newPaginationbutton.setAttribute("aria-label", `page ${i+1}`)
newPaginationbutton.setAttribute("aria-current", "page")
} else {
newPaginationbutton.setAttribute("aria-label", `Go to page ${i+1}`)
}
// Register event handlers
newPaginationbutton.onclick = function() {
runSearchPageSearch(i)
};
pagination.querySelector(".pagination-previous").onclick = function() {
runSearchPageSearch(page - 1)
};
pagination.querySelector(".pagination-next").onclick = function() {
runSearchPageSearch(page + 1)
};
newPaginationItem.append(newPaginationbutton)
paginationList.append(newPaginationItem)
}
}
function setStartEndForPaginator(currentPage, totalPages, nbPagesLinkToDisplay) {
let start = 0
let end = totalPages
if (totalPages > nbPagesLinkToDisplay) {
start = currentPage
if (totalPages - currentPage < nbPagesLinkToDisplay) {
start = totalPages - nbPagesLinkToDisplay
}
if (totalPages - start > nbPagesLinkToDisplay) {
end = currentPage + nbPagesLinkToDisplay
}
}
return [start, end]
}
function addHeadingForQuery(query, parentElement) {
const searchHeading = document.createElement('h1')
searchHeading.textContent = `Search results for “${query}”`
parentElement.appendChild(searchHeading)
}
function addResultsList(hits, query, parentElement) {
const searchResultsList = document.createElement('ul')
searchResultsList.className = "search"
for (hit of hits) {
const hitElement = createHitElement(hit, query)
searchResultsList.appendChild(hitElement)
}
parentElement.appendChild(searchResultsList)
}
function createHitElement(hitData, query) {
const pageURL = new URL(hitData.url)
pageURL.hash = '';
pageURL.searchParams.set('highlight', query);
const anchorURL = new URL(hitData.url);
anchorURL.searchParams.set('highlight', query);
const result = hitData._highlightResult
const hitListElement = document.createElement('li')
const hierarchies = Object.values(result.hierarchy);
const firstHierarchyLevel = hierarchies[0];
const lastHierarchyLevel = hierarchies[hierarchies.length - 1];
const pageLink = document.createElement('a')
hitListElement.appendChild(pageLink)
pageLink.innerHTML = firstHierarchyLevel.value
pageLink.href = pageURL
const contextElement = document.createElement('div')
hitListElement.appendChild(contextElement)
contextElement.className = 'context'
if (lastHierarchyLevel && lastHierarchyLevel !== firstHierarchyLevel ) {
const contextLinkContainer = document.createElement('div')
contextElement.appendChild(contextLinkContainer)
const contextLink = document.createElement('a')
contextLinkContainer.appendChild(contextLink)
contextLink.innerHTML = lastHierarchyLevel.value
contextLink.href = anchorURL
}
if (result.content) {
const contentElement = document.createElement('div')
contentElement.innerHTML = result.content.value
contextElement.appendChild(contentElement)
}
return hitListElement
}
window.addEventListener('DOMContentLoaded', () => runSearchPageSearch(0));
</script>
{% endblock %}