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[fix] AppState support for Android browser 4.4

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This commit is contained in:
Nicolas Gallagher
2017-07-26 15:52:11 -07:00
parent 092d5d12f7
commit 0ff3e91592
1 changed files with 8 additions and 4 deletions
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src/apis/AppState/index.js
+8 -4
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@@ -7,15 +7,19 @@
* LICENSE file in the root directory of this source tree.
*
* @providesModule AppState
* @flow
* @noflow
*/
import ExecutionEnvironment from 'fbjs/lib/ExecutionEnvironment';
import findIndex from 'array-find-index';
import invariant from 'fbjs/lib/invariant';
// Android 4.4 browser
const isPrefixed = !document.hasOwnProperty('hidden') && document.hasOwnProperty('webkitHidden');
const EVENT_TYPES = ['change'];
const VISIBILITY_CHANGE_EVENT = 'visibilitychange';
const VISIBILITY_CHANGE_EVENT = isPrefixed ? 'webkitvisibilitychange' : 'visibilitychange';
const VISIBILITY_STATE_PROPERTY = isPrefixed ? 'webkitVisibilityState' : 'visibilityState';
const AppStates = {
BACKGROUND: 'background',
@@ -25,14 +29,14 @@ const AppStates = {
const listeners = [];
export default class AppState {
static isAvailable = ExecutionEnvironment.canUseDOM && document.visibilityState;
static isAvailable = ExecutionEnvironment.canUseDOM && document[VISIBILITY_STATE_PROPERTY];
static get currentState() {
if (!AppState.isAvailable) {
return AppStates.ACTIVE;
}
switch (document.visibilityState) {
switch (document[VISIBILITY_STATE_PROPERTY]) {
case 'hidden':
case 'prerender':
case 'unloaded':