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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| import { Popup, PopupType } from '../models/popup' | ||
| import { enableStackedPopups } from './feature-flag' | ||
| import { sendNonFatalException } from './helpers/non-fatal-exception' | ||
| import { uuid } from './uuid' | ||
|
|
||
| /** | ||
| * The limit of how many popups allowed in the stack. Working under the | ||
| * assumption that a user should only be dealing with a couple of popups at a | ||
| * time, if a user hits the limit this would indicate a problem. | ||
| */ | ||
| const defaultPopupStackLimit = 50 | ||
|
|
||
| /** | ||
| * The popup manager is to manage the stack of currently open popups. | ||
| */ | ||
| export class PopupManager { | ||
| private popupStack = new Array<Popup>() | ||
|
|
||
| public constructor(private readonly popupLimit = defaultPopupStackLimit) {} | ||
|
|
||
| /** | ||
| * Returns the last popup added to the stack. | ||
| */ | ||
| public get currentPopup(): Popup | null { | ||
| return this.popupStack.at(-1) ?? null | ||
| } | ||
|
|
||
| /** | ||
| * Returns whether there are any popups in the stack. | ||
| */ | ||
| public get isAPopupOpen(): boolean { | ||
| return this.currentPopup !== null | ||
| } | ||
|
|
||
| /** | ||
| * Returns an array of all popups in the stack of the provided type. | ||
| **/ | ||
| public getPopupsOfType(popupType: PopupType): ReadonlyArray<Popup> { | ||
| return this.popupStack.filter(p => p.type === popupType) | ||
| } | ||
|
|
||
| /** | ||
| * Returns whether there are any popups of a given type in the stack. | ||
| */ | ||
| public areTherePopupsOfType(popupType: PopupType): boolean { | ||
| return this.popupStack.some(p => p.type === popupType) | ||
| } | ||
|
|
||
| /** | ||
| * Adds a popup to the stack. | ||
| * - The popup will be given a unique id and returned. | ||
| * - It will not add multiple popups of the same type to the stack | ||
| **/ | ||
| public addPopup(popupToAdd: Popup): Popup { | ||
| const existingPopup = this.getPopupsOfType(popupToAdd.type) | ||
|
|
||
| if (!enableStackedPopups()) { | ||
| this.popupStack = [popupToAdd] | ||
| return popupToAdd | ||
| } | ||
|
|
||
| if (existingPopup.length > 0) { | ||
| log.warn( | ||
| `Attempted to add a popup of already existing type - ${popupToAdd.type}.` | ||
| ) | ||
| return popupToAdd | ||
| } | ||
|
|
||
| const popup = { id: uuid(), ...popupToAdd } | ||
| this.popupStack.push(popup) | ||
|
|
||
| if (this.popupStack.length > this.popupLimit) { | ||
| // Remove the oldest | ||
| const oldest = this.popupStack[0] | ||
| sendNonFatalException( | ||
| 'TooManyPopups', | ||
| new Error( | ||
| `Max number of ${this.popupLimit} popups reached while adding popup of type ${popup.type}. Removing last popup from the stack -> type ${oldest.type} ` | ||
| ) | ||
| ) | ||
| this.popupStack = this.popupStack.slice(1) | ||
| } | ||
| return popup | ||
| } | ||
|
|
||
| /** | ||
| * Updates a popup in the stack and returns it. | ||
| * - It uses the popup id to find and update the popup. | ||
| */ | ||
| public updatePopup(popupToUpdate: Popup) { | ||
| if (popupToUpdate.id === undefined) { | ||
| log.warn(`Attempted to update a popup without an id.`) | ||
| return | ||
| } | ||
|
|
||
| const index = this.popupStack.findIndex(p => p.id === popupToUpdate.id) | ||
| if (index < 0) { | ||
| log.warn(`Attempted to update a popup not in the stack.`) | ||
| return | ||
| } | ||
|
|
||
| this.popupStack = [ | ||
| ...this.popupStack.slice(0, index), | ||
| popupToUpdate, | ||
| ...this.popupStack.slice(index + 1), | ||
| ] | ||
| } | ||
|
|
||
| /** | ||
| * Removes a popup based on it's id. | ||
| */ | ||
| public removePopup(popup: Popup) { | ||
| if (popup.id === undefined) { | ||
| log.warn(`Attempted to remove a popup without an id.`) | ||
| return | ||
| } | ||
| this.popupStack = this.popupStack.filter(p => p.id !== popup.id) | ||
| } | ||
|
|
||
| /** | ||
| * Removes any popup of the given type from the stack | ||
| */ | ||
| public removePopupByType(popupType: PopupType) { | ||
| this.popupStack = this.popupStack.filter(p => p.type !== popupType) | ||
| } | ||
| } |
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