feat: lazy load session recording #1588
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| import { assignableWindow, document, LazyLoadedSessionRecordingInterface, window } from '../../utils/globals' | ||
| import { PostHog } from '../../posthog-core' | ||
| import { RemoteConfig } from '../../types' | ||
| import { createLogger } from '../../utils/logger' | ||
| import { SESSION_RECORDING_ENABLED_SERVER_SIDE } from '../../constants' | ||
| import { isBoolean, isUndefined } from '../../utils/type-utils' | ||
|
|
||
| const logger = createLogger('[Session-Recording-Loader]') | ||
|
|
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| export const isSessionRecordingEnabled = (loader: SessionRecordingLoader) => { | ||
| const enabled_server_side = !!loader.instance.get_property(SESSION_RECORDING_ENABLED_SERVER_SIDE) | ||
| const enabled_client_side = !loader.instance.config.disable_session_recording | ||
| return !!window && enabled_server_side && enabled_client_side | ||
| } | ||
|
|
||
| export class SessionRecordingLoader { | ||
| _forceAllowLocalhostNetworkCapture = false | ||
|
|
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| get lazyLoaded(): LazyLoadedSessionRecordingInterface | undefined { | ||
| return this._lazyLoadedSessionRecording | ||
| } | ||
|
|
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| private _lazyLoadedSessionRecording: LazyLoadedSessionRecordingInterface | undefined | ||
|
|
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| constructor(readonly instance: PostHog, readonly isEnabled: (srl: SessionRecordingLoader) => boolean) { | ||
| this.startIfEnabled() | ||
| } | ||
|
|
||
| public onRemoteConfig(response: RemoteConfig) { | ||
| if (this.instance.persistence) { | ||
| this._lazyLoadedSessionRecording?.onRemoteConfig(response) | ||
| } | ||
| this.startIfEnabled() | ||
| } | ||
|
|
||
| public startIfEnabled() { | ||
| if (this.isEnabled(this)) { | ||
| this.loadScript(() => { | ||
| this.start() | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| private loadScript(cb: () => void): void { | ||
| if (assignableWindow.__PosthogExtensions__?.initSessionRecording) { | ||
| // already loaded | ||
| cb() | ||
| } | ||
| assignableWindow.__PosthogExtensions__?.loadExternalDependency?.(this.instance, 'session-recorder', (err) => { | ||
| if (err) { | ||
| logger.error('failed to load script', err) | ||
| return | ||
| } | ||
| cb() | ||
| }) | ||
| } | ||
|
|
||
| private start() { | ||
| if (!document) { | ||
| logger.error('`document` not found. Cannot start.') | ||
| return | ||
| } | ||
|
|
||
| if (!this._lazyLoadedSessionRecording && assignableWindow.__PosthogExtensions__?.initSessionRecording) { | ||
| if ( | ||
| isUndefined(this.instance.config.session_recording._forceAllowLocalhostNetworkCapture) && | ||
| isBoolean(this._forceAllowLocalhostNetworkCapture) | ||
| ) { | ||
| logger.warn( | ||
| '`_forceAllowLocalhostNetworkCapture` has moved to `session_recording` config. Copying your setting over.' | ||
| ) | ||
| this.instance.config.session_recording._forceAllowLocalhostNetworkCapture = | ||
| this._forceAllowLocalhostNetworkCapture | ||
| } | ||
|
|
||
| this._lazyLoadedSessionRecording = assignableWindow.__PosthogExtensions__.initSessionRecording( | ||
| this.instance | ||
| ) | ||
| this._lazyLoadedSessionRecording.start() | ||
| } | ||
| } | ||
|
|
||
| stop() { | ||
| if (this._lazyLoadedSessionRecording) { | ||
| this._lazyLoadedSessionRecording.stop() | ||
| this._lazyLoadedSessionRecording = undefined | ||
| } | ||
| } | ||
| } |
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need to add tests on the loader separately from the loaded file