Files: 6364fbf77aeecca529e890e5c7d3e4ddc55a894e / modules_basic / compose.js
4000 bytesRaw
1 | |
2 | var h = require('hyperscript') |
3 | var u = require('../util') |
4 | var suggest = require('suggest-box') |
5 | var cont = require('cont') |
6 | var mentions = require('ssb-mentions') |
7 | var lightbox = require('hyperlightbox') |
8 | |
9 | var plugs = require('../plugs') |
10 | |
11 | //var suggest = plugs.map(exports.suggest = []) |
12 | var publish = plugs.first(exports.sbot_publish = []) |
13 | var message_content = plugs.first(exports.message_content = []) |
14 | var message_confirm = plugs.first(exports.message_confirm = []) |
15 | var file_input = plugs.first(exports.file_input = []) |
16 | |
17 | exports.suggest = [] |
18 | |
19 | function id (e) { return e } |
20 | |
21 | /* |
22 | opts can take |
23 | |
24 | placeholder: string. placeholder text, defaults to "Write a message" |
25 | prepublish: function. called before publishing a message. |
26 | shrink: boolean. set to false, to make composer not shrink (or hide controls) when unfocused. |
27 | */ |
28 | |
29 | exports.message_compose = function (meta, opts, cb) { |
30 | if('function' === typeof cb) { |
31 | if('function' === typeof opts) |
32 | opts = {prepublish: opts} |
33 | } |
34 | |
35 | if(!opts) opts = {} |
36 | opts.prepublish = opts.prepublish || id |
37 | |
38 | var accessories |
39 | meta = meta || {} |
40 | if(!meta.type) throw new Error('message must have type') |
41 | var ta = h('textarea', { |
42 | placeholder: opts.placeholder || 'Write a message', |
43 | style: {height: opts.shrink === false ? '200px' : ''} |
44 | }) |
45 | |
46 | if(opts.shrink !== false) { |
47 | var blur |
48 | ta.addEventListener('focus', function () { |
49 | clearTimeout(blur) |
50 | if(!ta.value) { |
51 | ta.style.height = '200px' |
52 | } |
53 | accessories.style.display = 'block' |
54 | }) |
55 | ta.addEventListener('blur', function () { |
56 | //don't shrink right away, so there is time |
57 | //to click the publish button. |
58 | clearTimeout(blur) |
59 | blur = setTimeout(function () { |
60 | if(ta.value) return |
61 | ta.style.height = '50px' |
62 | accessories.style.display = 'none' |
63 | }, 200) |
64 | }) |
65 | } |
66 | |
67 | ta.addEventListener('keydown', function (ev) { |
68 | if(ev.keyCode === 13 && ev.ctrlKey) publish() |
69 | }) |
70 | |
71 | var files = [] |
72 | var filesById = {} |
73 | |
74 | function publish() { |
75 | publishBtn.disabled = true |
76 | var content |
77 | try { |
78 | content = JSON.parse(ta.value) |
79 | } catch (err) { |
80 | meta.text = ta.value |
81 | meta.mentions = mentions(ta.value).map(function (mention) { |
82 | // merge markdown-detected mention with file info |
83 | var file = filesById[mention.link] |
84 | if (file) { |
85 | if (file.type) mention.type = file.type |
86 | if (file.size) mention.size = file.size |
87 | } |
88 | return mention |
89 | }) |
90 | try { |
91 | meta = opts.prepublish(meta) |
92 | } catch (err) { |
93 | publishBtn.disabled = false |
94 | if (cb) cb(err) |
95 | else alert(err.message) |
96 | } |
97 | return message_confirm(meta, done) |
98 | } |
99 | message_confirm(content, done) |
100 | |
101 | function done (err, msg) { |
102 | publishBtn.disabled = false |
103 | if(err) return alert(err.stack) |
104 | else if (msg) ta.value = '' |
105 | |
106 | if (cb) cb(err, msg) |
107 | } |
108 | } |
109 | |
110 | |
111 | var publishBtn = h('button', 'Publish', {onclick: publish}) |
112 | var composer = |
113 | h('div.compose', h('div.column', ta, |
114 | accessories = h('div.row.compose__controls', |
115 | //hidden until you focus the textarea |
116 | {style: {display: opts.shrink === false ? '' : 'none'}}, |
117 | file_input(function (file) { |
118 | files.push(file) |
119 | filesById[file.link] = file |
120 | |
121 | var embed = file.type.indexOf('image/') === 0 ? '!' : '' |
122 | ta.value += embed + '['+file.name+']('+file.link+')' |
123 | console.log('added:', file) |
124 | }), |
125 | publishBtn) |
126 | ) |
127 | ) |
128 | |
129 | suggest(ta, function (word, cb) { |
130 | cont.para(exports.suggest.map(function (fn) { |
131 | return function (cb) { fn(word, cb) } |
132 | })) |
133 | (function (err, results) { |
134 | if(err) console.error(err) |
135 | results = results.reduce(function (ary, item) { |
136 | return ary.concat(item) |
137 | }, []).sort(function (a, b) { |
138 | return b.rank - a.rank |
139 | }).filter(Boolean) |
140 | |
141 | cb(null, results) |
142 | }) |
143 | }, {}) |
144 | |
145 | return composer |
146 | |
147 | } |
148 | |
149 | |
150 | |
151 |
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