1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import Client from '../client/web_client.jsx';
import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
import Constants from 'utils/constants.jsx';
import EventEmitter from 'events';
import * as Emoji from 'utils/emoji.jsx';
const ActionTypes = Constants.ActionTypes;
const CHANGE_EVENT = 'changed';
const MAXIMUM_RECENT_EMOJI = 27;
// Wrap the contents of the store so that we don't need to construct an ES6 map where most of the content
// (the system emojis) will never change. It provides the get/has functions of a map and an iterator so
// that it can be used in for..of loops
class EmojiMap {
constructor(customEmojis) {
this.customEmojis = customEmojis;
// Store customEmojis to an array so we can iterate it more easily
this.customEmojisArray = [...customEmojis];
}
has(name) {
return Emoji.EmojiIndicesByAlias.has(name) || this.customEmojis.has(name);
}
get(name) {
if (Emoji.EmojiIndicesByAlias.has(name)) {
return Emoji.Emojis[Emoji.EmojiIndicesByAlias.get(name)];
}
return this.customEmojis.get(name);
}
[Symbol.iterator]() {
const customEmojisArray = this.customEmojisArray;
return {
systemIndex: 0,
customIndex: 0,
next() {
if (this.systemIndex < Emoji.Emojis.length) {
const emoji = Emoji.Emojis[this.systemIndex];
this.systemIndex += 1;
return {value: [emoji.aliases[0], emoji]};
}
if (this.customIndex < customEmojisArray.length) {
const emoji = customEmojisArray[this.customIndex][1];
this.customIndex += 1;
return {value: [emoji.name, emoji]};
}
return {done: true};
}
};
}
}
class EmojiStore extends EventEmitter {
constructor() {
super();
this.dispatchToken = AppDispatcher.register(this.handleEventPayload.bind(this));
this.setMaxListeners(600);
this.receivedCustomEmojis = false;
this.customEmojis = new Map();
this.map = new EmojiMap(this.customEmojis);
}
addChangeListener(callback) {
this.on(CHANGE_EVENT, callback);
}
removeChangeListener(callback) {
this.removeListener(CHANGE_EVENT, callback);
}
emitChange() {
this.emit(CHANGE_EVENT);
}
hasReceivedCustomEmojis() {
return this.receivedCustomEmojis;
}
setCustomEmojis(customEmojis) {
customEmojis.sort((a, b) => a.name.localeCompare(b.name));
this.customEmojis = new Map();
for (const emoji of customEmojis) {
this.addCustomEmoji(emoji);
}
this.map = new EmojiMap(this.customEmojis);
}
addCustomEmoji(emoji) {
this.customEmojis.set(emoji.name, emoji);
}
removeCustomEmoji(id) {
for (const [name, emoji] of this.customEmojis) {
if (emoji.id === id) {
this.customEmojis.delete(name);
break;
}
}
}
hasSystemEmoji(name) {
return Emoji.EmojiIndicesByAlias.has(name);
}
getCustomEmojiMap() {
return this.customEmojis;
}
getEmojis() {
return this.map;
}
has(name) {
return this.map.has(name);
}
get(name) {
return this.map.get(name);
}
addRecentEmoji(rawAlias) {
const recentEmojis = this.getRecentEmojis();
const alias = rawAlias.split(':').join('');
let emoji = this.getCustomEmojiMap().get(alias);
if (!emoji) {
const emojiIndex = Emoji.EmojiIndicesByAlias.get(alias);
emoji = Emoji.Emojis[emojiIndex];
}
if (!emoji) {
// something is wrong, so we return
return;
}
// odd workaround to the lack of array.findLastIndex - reverse looping & splice
for (let i = recentEmojis.length - 1; i >= 0; i--) {
if ((emoji.name && recentEmojis[i].name === emoji.name) ||
(emoji.filename && recentEmojis[i].filename === emoji.filename)) {
recentEmojis.splice(i, 1);
break;
}
}
recentEmojis.push(emoji);
// cut off the _top_ if it's over length (since new are added to end)
if (recentEmojis.length > MAXIMUM_RECENT_EMOJI) {
recentEmojis.splice(0, recentEmojis.length - MAXIMUM_RECENT_EMOJI);
}
localStorage.setItem(Constants.RECENT_EMOJI_KEY, JSON.stringify(recentEmojis));
}
getRecentEmojis() {
const result = JSON.parse(localStorage.getItem(Constants.RECENT_EMOJI_KEY));
if (!result) {
return [];
}
return result;
}
hasUnicode(codepoint) {
return Emoji.EmojiIndicesByUnicode.has(codepoint);
}
getUnicode(codepoint) {
return Emoji.Emojis[Emoji.EmojiIndicesByUnicode.get(codepoint)];
}
getEmojiImageUrl(emoji) {
if (emoji.id) {
return Client.getCustomEmojiImageUrl(emoji.id);
}
const filename = emoji.filename || emoji.aliases[0];
return Constants.EMOJI_PATH + '/' + filename + '.png';
}
handleEventPayload(payload) {
const action = payload.action;
switch (action.type) {
case ActionTypes.RECEIVED_CUSTOM_EMOJIS:
this.setCustomEmojis(action.emojis);
this.receivedCustomEmojis = true;
this.emitChange();
break;
case ActionTypes.RECEIVED_CUSTOM_EMOJI:
this.addCustomEmoji(action.emoji);
this.emitChange();
break;
case ActionTypes.REMOVED_CUSTOM_EMOJI:
this.removeCustomEmoji(action.id);
this.emitChange();
break;
case ActionTypes.EMOJI_POSTED:
this.addRecentEmoji(action.alias);
this.emitChange();
break;
}
}
}
export default new EmojiStore();
|
