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Provide generics for Image class #254
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Provide generics for Image class #254
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src/types/types.ts
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/** | ||
* Represents the format of a file object data with the additional data. | ||
*/ | ||
export type FileObjectData<AdditionalData = {}> = { |
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why this type is not reused below?
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it was initially defined to be used to defined parameters types of member functions. But it can be used in the interfaces if you would like to.
src/index.ts
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/** | ||
* UI module instance | ||
*/ | ||
private ui: Ui; | ||
private ui: Ui<CustomActions, AdditionalUploadResponse>; |
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I think it would be better to pass ImageToolData<CustomActions, AdditionalUploadResponse>
because UI should not depend on AdditionalUploadResponse, it depends on data format instead since it may be used for rendering
src/index.ts
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this.image = data.file; | ||
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this._data.caption = data.caption || ''; | ||
this.ui.fillCaption(this._data.caption); | ||
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ImageTool.tunes.forEach(({ name: tune }) => { | ||
const value = typeof data[tune as keyof ImageToolData] !== 'undefined' ? data[tune as keyof ImageToolData] === true || data[tune as keyof ImageToolData] === 'true' : false; | ||
const value = typeof data[tune as keyof ImageToolData<CustomActions, AdditionalUploadResponse>] !== 'undefined' ? data[tune as keyof ImageToolData<CustomActions, AdditionalUploadResponse>] === true || data[tune as keyof ImageToolData<CustomActions, AdditionalUploadResponse>] === 'true' : false; |
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this line is too long and hard to read. Can we do something with it?
src/index.ts
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type ImageToolConstructorOptions = BlockToolConstructorOptions<ImageToolData, ImageConfig> | ||
type ImageToolConstructorOptions< CustomActions = {},AdditionalUploadResponse = {}> = BlockToolConstructorOptions<ImageToolData<CustomActions, AdditionalUploadResponse>, ImageConfig> |
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type ImageToolConstructorOptions< CustomActions = {},AdditionalUploadResponse = {}> = BlockToolConstructorOptions<ImageToolData<CustomActions, AdditionalUploadResponse>, ImageConfig> | |
type ImageToolConstructorOptions<CustomActions = {}, AdditionalUploadResponse = {}> = BlockToolConstructorOptions<ImageToolData<CustomActions, AdditionalUploadResponse>, ImageConfig> |
src/index.ts
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export default class ImageTool implements BlockTool { | ||
export default class ImageTool<CustomActions = {} ,AdditionalUploadResponse = {}> implements BlockTool { |
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export default class ImageTool<CustomActions = {} ,AdditionalUploadResponse = {}> implements BlockTool { | |
export default class ImageTool<CustomActions = {}, AdditionalUploadResponse = {}> implements BlockTool { |
src/utils/isPromise.ts
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@@ -5,6 +5,6 @@ import type { UploadResponseFormat } from '../types/types'; | |||
* @param object - object to check | |||
* @returns | |||
*/ | |||
export default function isPromise(object: Promise<UploadResponseFormat>): object is Promise<UploadResponseFormat> { | |||
export default function isPromise<AdditionalUploadResponse>(object: Promise<UploadResponseFormat<AdditionalUploadResponse>>): object is Promise<UploadResponseFormat<AdditionalUploadResponse>> { |
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isPromise
is a util, so it should not depend on UploadResponseFormat
and AdditionalUploadResponse
.
Problem
The current design of the
Image
class doesn't make it easily extendable so that users can define their actions and additional fields in the upload response. This also limits class extensions for use cases where custom data and actions must be implemented.Cause
The
Image
class was first designed with types fixed for the actions and upload response data, which is a very concrete design, and it limited the flexibility with different kinds of requirements. The approach taken in designing thus becomes relatively narrow and does not allow an extension of the user's custom properties during the creation ofImage
object.Solution
Generic types should be used to re-implement the
Image
class to fix this problem. The definition of the class should change into classImageTool<CustomActions = {}, AdditionalUploadResponse = {}>
, such that while the object of it is created, users can provide their custom actions and additional upload response types. This makes theImage
class flexible and more usable and leaves the ability to respond to almost any scenario and requirements.