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Beta Part 4: Part of Mega Dynamic Load/Unload support (#1781)
* Beta Part 4: Part of Mega Dynamic Load/Unload support - Fix function typing issues - Update Analytics Extension to start supporting teardown / unload (more tests required) - Adds namespace option to instrumentation hooks (for debugging teardown issues) - Update AITest Class to log and optionally assert events and hooks that have not been removed - Add Update callback when plugins are added / removed (will be extended for config updates) - Some minor minification improvements * Update comments * Add missing enum definition * Update Sender tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,92 +1,104 @@ | ||
| import { getWindow, getDocument, getNavigator, isUndefined, isNullOrUndefined, attachEvent } from "@microsoft/applicationinsights-core-js"; | ||
| import dynamicProto from "@microsoft/dynamicproto-js"; | ||
| import { getWindow, getDocument, getNavigator, isUndefined, isNullOrUndefined, createUniqueNamespace, mergeEvtNamespace, eventOn, eventOff } from "@microsoft/applicationinsights-core-js"; | ||
|
|
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| export interface IOfflineListener { | ||
| isOnline: () => boolean; | ||
| isListening: () => boolean; | ||
| unload: () => void; | ||
| } | ||
|
|
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| function _disableEvents(target: any, evtNamespace: string | string[]) { | ||
| eventOff(target, null, null, evtNamespace); | ||
| } | ||
|
|
||
| /** | ||
| * @description Monitors browser for offline events | ||
| * @export default - Offline: Static instance of OfflineListener | ||
| * @class OfflineListener | ||
| * Create a new OfflineListener instance to monitor browser online / offline events | ||
| * @param parentEvtNamespace - The parent event namespace to append to any specific events for this instance | ||
| */ | ||
| export class OfflineListener { | ||
| public static Offline = new OfflineListener; | ||
| public isListening: boolean; | ||
|
|
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| constructor() { | ||
| let _window = getWindow(); | ||
| let _document = getDocument(); | ||
| let isListening = false; | ||
| let _onlineStatus: boolean = true; | ||
|
|
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| dynamicProto(OfflineListener, this, (_self) => { | ||
| try { | ||
| if (_window) { | ||
| if (attachEvent(_window, "online", _setOnline)) { | ||
| attachEvent(_window, "offline", _setOffline); | ||
| isListening = true; | ||
| } | ||
| } | ||
|
|
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| if (_document) { | ||
| // Also attach to the document.body or document | ||
| let target:any = _document.body || _document; | ||
|
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||
| if (!isUndefined(target.ononline)) { | ||
| target.ononline = _setOnline; | ||
| target.onoffline = _setOffline; | ||
| isListening = true; | ||
|
|
||
| } | ||
| } | ||
| export function createOfflineListener(parentEvtNamespace?: string | string[]): IOfflineListener { | ||
| let _document = getDocument(); | ||
| var _navigator = getNavigator(); // Gets the window.navigator or workerNavigator depending on the global | ||
| let _isListening: boolean = false; | ||
| let _onlineStatus: boolean = true; | ||
| let _evtNamespace = mergeEvtNamespace(createUniqueNamespace("OfflineListener"), parentEvtNamespace); | ||
|
|
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| if (isListening) { | ||
| // We are listening to events so lets set the current status rather than assuming we are online #1538 | ||
| var _navigator = getNavigator(); // Gets the window.navigator or workerNavigator depending on the global | ||
| if (_navigator && !isNullOrUndefined(_navigator.onLine)) { // navigator.onLine is undefined in react-native | ||
| _onlineStatus = _navigator.onLine; | ||
| } | ||
| try { | ||
| if (_enableEvents(getWindow())) { | ||
| _isListening = true; | ||
| } | ||
|
|
||
| if (_document) { | ||
| // Also attach to the document.body or document | ||
| let target:any = _document.body || _document; | ||
|
|
||
| if (target.ononline) { | ||
| if (_enableEvents(target)) { | ||
| _isListening = true; | ||
| } | ||
| } catch (e) { | ||
|
|
||
| // this makes react-native less angry | ||
| isListening = false; | ||
| } | ||
|
|
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| _self.isListening = isListening; | ||
|
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| _self.isOnline = (): boolean => { | ||
| let result = true; | ||
| var _navigator = getNavigator(); | ||
| if (isListening) { | ||
| result = _onlineStatus | ||
| } else if (_navigator && !isNullOrUndefined(_navigator.onLine)) { // navigator.onLine is undefined in react-native | ||
| result = _navigator.onLine; | ||
| } | ||
| } | ||
|
|
||
| return result; | ||
| }; | ||
|
|
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| _self.isOffline = (): boolean => { | ||
| return !_self.isOnline(); | ||
| }; | ||
|
|
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| function _setOnline() { | ||
| _onlineStatus = true; | ||
| if (_isListening) { | ||
| // We are listening to events so lets set the current status rather than assuming we are online #1538 | ||
| if (_navigator && !isNullOrUndefined(_navigator.onLine)) { // navigator.onLine is undefined in react-native | ||
| _onlineStatus = _navigator.onLine; | ||
| } | ||
| } | ||
| } catch (e) { | ||
| // this makes react-native less angry | ||
| _isListening = false; | ||
| } | ||
|
|
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| function _setOffline() { | ||
| _onlineStatus = false; | ||
| function _enableEvents(target: any): boolean { | ||
| let enabled = false; | ||
| if (target) { | ||
| enabled = eventOn(target, "online", _setOnline, _evtNamespace); | ||
| if (enabled) { | ||
| eventOn(target, "offline", _setOffline, _evtNamespace); | ||
| } | ||
| }); | ||
| } | ||
|
|
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| return enabled; | ||
| } | ||
|
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| public isOnline(): boolean { | ||
| // @DynamicProtoStub -- DO NOT add any code as this will be removed during packaging | ||
| return false; | ||
| function _setOnline() { | ||
| _onlineStatus = true; | ||
| } | ||
|
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||
| public isOffline(): boolean { | ||
| // @DynamicProtoStub -- DO NOT add any code as this will be removed during packaging | ||
| return false; | ||
| function _setOffline() { | ||
| _onlineStatus = false; | ||
| } | ||
| } | ||
|
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| export const Offline = OfflineListener.Offline; | ||
| function _isOnline(): boolean { | ||
| let result = true; | ||
| if (_isListening) { | ||
| result = _onlineStatus | ||
| } else if (_navigator && !isNullOrUndefined(_navigator.onLine)) { // navigator.onLine is undefined in react-native | ||
| result = _navigator.onLine; | ||
| } | ||
|
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| return result; | ||
| } | ||
|
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| function _unload() { | ||
| let win = getWindow(); | ||
| if (win && _isListening) { | ||
| _disableEvents(win, _evtNamespace); | ||
|
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| if (_document) { | ||
| // Also attach to the document.body or document | ||
| let target:any = _document.body || _document; | ||
| if (!isUndefined(target.ononline)) { | ||
| _disableEvents(target, _evtNamespace); | ||
| } | ||
| } | ||
|
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| _isListening = false; | ||
| } | ||
| } | ||
|
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| return { | ||
| isOnline: _isOnline, | ||
| isListening: () => _isListening, | ||
| unload: _unload | ||
| }; | ||
| } |
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