hugo-theme-relearn/static/js/search.js
2016-10-26 11:09:28 +02:00

85 lines
2.8 KiB
JavaScript

var lunrIndex, pagesIndex;
// Initialize lunrjs using our generated index file
function initLunr() {
// First retrieve the index file
$.getJSON(baseurl + "/json/search.json")
.done(function(index) {
pagesIndex = index;
// Set up lunrjs by declaring the fields we use
// Also provide their boost level for the ranking
lunrIndex = new lunr.Index
lunrIndex.ref("uri");
lunrIndex.field('title', {
boost: 15
});
lunrIndex.field('tags', {
boost: 10
});
lunrIndex.field("content", {
boost: 5
});
// Feed lunr with each file and let lunr actually index them
pagesIndex.forEach(function(page) {
lunrIndex.add(page);
});
lunrIndex.pipeline.remove(lunrIndex.stemmer)
})
.fail(function(jqxhr, textStatus, error) {
var err = textStatus + ", " + error;
console.error("Error getting Hugo index flie:", err);
});
}
/**
* Trigger a search in lunr and transform the result
*
* @param {String} query
* @return {Array} results
*/
function search(query) {
// Find the item in our index corresponding to the lunr one to have more info
return lunrIndex.search(query).map(function(result) {
return pagesIndex.filter(function(page) {
return page.uri === result.ref;
})[0];
});
}
// Let's get started
initLunr();
$( document ).ready(function() {
var horseyList = horsey($("#search-by").get(0), {
suggestions: function (value, done) {
var query = $("#search-by").val();
var results = search(query);
done(results);
},
filter: function (q, suggestion) {
return true;
},
set: function (value) {
location.href=value.href;
},
render: function (li, suggestion) {
var uri = suggestion.uri.substring(1,suggestion.uri.length);
var indexOfIndex = uri.lastIndexOf("/index");
if (indexOfIndex == -1) {
indexOfIndex = uri.length;
}
var href = uri.substring(uri.indexOf("/"), indexOfIndex);
suggestion.href = baseurl + href;
var query = $("#search-by").val();
var numWords = 2;
var text = suggestion.content.match("(?:\\s?(?:[\\w]+)\\s?){0,"+numWords+"}"+query+"(?:\\s?(?:[\\w]+)\\s?){0,"+numWords+"}");
suggestion.context = text;
var image = '<div>' + '» ' + suggestion.title + '</div><div style="font-size:12px">' + (suggestion.context || '') +'</div>';
li.innerHTML = image;
},
limit: 10
});
horseyList.refreshPosition();
});