60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
require([
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'gitbook',
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'jquery'
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], function(gitbook, $) {
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// Define global search engine
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function LunrSearchEngine() {
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this.index = null;
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this.store = {};
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this.name = 'LunrSearchEngine';
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}
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// Initialize lunr by fetching the search index
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LunrSearchEngine.prototype.init = function() {
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var that = this;
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var d = $.Deferred();
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$.getJSON(gitbook.state.basePath+'/search_index.json')
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.then(function(data) {
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// eslint-disable-next-line no-undef
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that.index = lunr.Index.load(data.index);
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that.store = data.store;
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d.resolve();
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});
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return d.promise();
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};
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// Search for a term and return results
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LunrSearchEngine.prototype.search = function(q, offset, length) {
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var that = this;
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var results = [];
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if (this.index) {
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results = $.map(this.index.search(q), function(result) {
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var doc = that.store[result.ref];
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return {
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title: doc.title,
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url: doc.url,
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body: doc.summary || doc.body
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};
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});
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}
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return $.Deferred().resolve({
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query: q,
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results: results.slice(0, length),
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count: results.length
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}).promise();
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};
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// Set gitbook research
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gitbook.events.bind('start', function(e, config) {
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var engine = gitbook.search.getEngine();
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if (!engine) {
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gitbook.search.setEngine(LunrSearchEngine, config);
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}
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});
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});
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