-
Notifications
You must be signed in to change notification settings - Fork 45.7k
/
EventRegistry.js
58 lines (50 loc) · 1.59 KB
/
EventRegistry.js
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
/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
import type {TopLevelType} from './TopLevelEventTypes';
/**
* Mapping from registration name to event name
*/
export const registrationNameDependencies = {};
/**
* Mapping from lowercase registration names to the properly cased version,
* used to warn in the case of missing event handlers. Available
* only in __DEV__.
* @type {Object}
*/
export const possibleRegistrationNames = __DEV__ ? {} : (null: any);
// Trust the developer to only use possibleRegistrationNames in __DEV__
export function registerTwoPhaseEvent(
registrationName: string,
dependencies: ?Array<TopLevelType>,
): void {
registerDirectEvent(registrationName, dependencies);
registerDirectEvent(registrationName + 'Capture', dependencies);
}
export function registerDirectEvent(
registrationName: string,
dependencies: ?Array<TopLevelType>,
) {
if (__DEV__) {
if (registrationNameDependencies[registrationName]) {
console.error(
'EventRegistry: More than one plugin attempted to publish the same ' +
'registration name, `%s`.',
registrationName,
);
}
}
registrationNameDependencies[registrationName] = dependencies;
if (__DEV__) {
const lowerCasedName = registrationName.toLowerCase();
possibleRegistrationNames[lowerCasedName] = registrationName;
if (registrationName === 'onDoubleClick') {
possibleRegistrationNames.ondblclick = registrationName;
}
}
}