Files: a418cfe5b0a817369167fc9031967fe2fa0c76b8 / app / page / search.js
2132 bytesRaw
1 | const nest = require('depnest') |
2 | const { h, Struct, Value } = require('mutant') |
3 | const pull = require('pull-stream') |
4 | const Scroller = require('pull-scroll') |
5 | const TextNodeSearcher = require('text-node-searcher') |
6 | |
7 | exports.gives = nest('app.page.search') |
8 | |
9 | exports.needs = nest({ |
10 | 'app.html.filter': 'first', |
11 | 'app.html.scroller': 'first', |
12 | 'message.html.render': 'first', |
13 | 'sbot.pull.log': 'first', |
14 | 'sbot.pull.stream': 'first' |
15 | }) |
16 | |
17 | var whitespace = /\s+/ |
18 | |
19 | // TODO : if query is a cypherlink, display backlinks to that cypherlink |
20 | |
21 | exports.create = function (api) { |
22 | return nest('app.page.search', searchPage) |
23 | |
24 | function searchPage (location) { |
25 | const query = location.query.trim() |
26 | |
27 | const search = Struct({ |
28 | fulltext: Struct({ |
29 | isDone: Value(false) |
30 | }), |
31 | matches: Value(0) |
32 | }) |
33 | |
34 | const searchHeader = h('Search', [ |
35 | h('header', h('h1', query)) |
36 | ]) |
37 | const { filterMenu, filterDownThrough, resetFeed } = api.app.html.filter(draw) |
38 | const { container, content } = api.app.html.scroller({ prepend: [searchHeader, filterMenu] }) |
39 | |
40 | function renderMsg (msg) { |
41 | var el = api.message.html.render(msg, { showTitle: true }) |
42 | var queryTerms = query.split(whitespace) |
43 | |
44 | highlight(el, createOrRegExp(queryTerms)) |
45 | return el |
46 | } |
47 | |
48 | function draw () { |
49 | resetFeed({ container, content }) |
50 | |
51 | // TODO figure out how to step on kinda orderless search results |
52 | pull( |
53 | // api.sbot.pull.stream(sbot => next(sbot.search.query, { query, limit: 500 })), |
54 | api.sbot.pull.stream(sbot => sbot.search.query({ query, limit: 500 })), |
55 | filterDownThrough(), |
56 | pull.through(() => search.matches.set(search.matches() + 1)), |
57 | Scroller(container, content, renderMsg, false, false) |
58 | ) |
59 | } |
60 | |
61 | draw() |
62 | |
63 | container.title = '?' + query |
64 | return container |
65 | } |
66 | } |
67 | |
68 | function createOrRegExp (ary) { |
69 | return new RegExp(ary.map(function (e) { |
70 | return '\\b' + e + '\\b' |
71 | }).join('|'), 'i') |
72 | } |
73 | |
74 | function highlight (el, query) { |
75 | var searcher = new TextNodeSearcher({container: el}) |
76 | searcher.query = query |
77 | searcher.highlight() |
78 | return el |
79 | } |
80 |
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