fix: custom override method removes support for asynchronous #672

docs/en/guide/override.md

@@ -7,7 +7,7 @@ import Editor from "@hufe921/canvas-editor"
 
 const instance = new Editor(container, <IElement[]>data, options)
 
-instance.override.overrideFunction = () => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.overrideFunction = () => unknown | IOverrideResult
 ```
 
 ```typescript
@@ -23,7 +23,7 @@ Feature: Override internal paste function
 Usage:
 
 ```javascript
-instance.override.paste = (evt?: ClipboardEvent) => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.paste = (evt?: ClipboardEvent) => unknown | IOverrideResult
 ```
 
 ## copy
@@ -33,7 +33,7 @@ Feature: Override internal copy function
 Usage:
 
 ```javascript
-instance.override.copy = () => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.copy = () => unknown | IOverrideResult
 ```
 
 ## drop
@@ -43,5 +43,5 @@ Feature: Override internal drop function
 Usage:
 
 ```javascript
-instance.override.drop = (evt: DragEvent) => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.drop = (evt: DragEvent) => unknown | IOverrideResult
 ```

docs/guide/override.md

@@ -7,7 +7,7 @@ import Editor from "@hufe921/canvas-editor"
 
 const instance = new Editor(container, <IElement[]>data, options)
 
-instance.override.overrideFunction = () => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.overrideFunction = () => unknown | IOverrideResult
 ```
 
 ```typescript
@@ -23,7 +23,7 @@ interface IOverrideResult {
 用法：
 
 ```javascript
-instance.override.paste = (evt?: ClipboardEvent) => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.paste = (evt?: ClipboardEvent) => unknown | IOverrideResult
 ```
 
 ## copy
@@ -33,7 +33,7 @@ instance.override.paste = (evt?: ClipboardEvent) => void | Promise<void> | IOver
 用法：
 
 ```javascript
-instance.override.copy = () => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.copy = () => unknown | IOverrideResult
 ```
 
 ## drop
@@ -43,5 +43,5 @@ instance.override.copy = () => void | Promise<void> | IOverrideResult | Promise<
 用法：
 
 ```javascript
-instance.override.drop = (evt: DragEvent) => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>
+instance.override.drop = (evt: DragEvent) => unknown | IOverrideResult
 ```

src/editor/core/event/handlers/copy.ts

@@ -1,18 +1,17 @@
 import { ElementType } from '../../../dataset/enum/Element'
 import { IElement } from '../../../interface/Element'
 import { ITr } from '../../../interface/table/Tr'
-import { isPromiseFunction } from '../../../utils'
 import { writeElementList } from '../../../utils/clipboard'
 import { zipElementList } from '../../../utils/element'
 import { IOverrideResult } from '../../override/Override'
 import { CanvasEvent } from '../CanvasEvent'
 
-export async function copy(host: CanvasEvent) {
+export function copy(host: CanvasEvent) {
   const draw = host.getDraw()
   // 自定义粘贴事件
   const { copy } = draw.getOverride()
   if (copy) {
-    const overrideResult = isPromiseFunction(copy) ? await copy() : copy()
+    const overrideResult = copy()
     // 默认阻止默认事件
     if ((<IOverrideResult>overrideResult)?.preventDefault !== false) return
   }

src/editor/core/event/handlers/drop.ts

@@ -1,14 +1,13 @@
-import { isPromiseFunction } from '../../../utils'
 import { IOverrideResult } from '../../override/Override'
 import { CanvasEvent } from '../CanvasEvent'
 import { pasteImage } from './paste'
 
-export async function drop(evt: DragEvent, host: CanvasEvent) {
+export function drop(evt: DragEvent, host: CanvasEvent) {
   const draw = host.getDraw()
   // 自定义拖放事件
   const { drop } = draw.getOverride()
   if (drop) {
-    const overrideResult = isPromiseFunction(drop) ? await drop(evt) : drop(evt)
+    const overrideResult = drop(evt)
     // 默认阻止默认事件
     if ((<IOverrideResult>overrideResult)?.preventDefault !== false) return
   }

src/editor/core/event/handlers/paste.ts

@@ -13,7 +13,6 @@ import {
   getElementListByHTML
 } from '../../../utils/element'
 import { CanvasEvent } from '../CanvasEvent'
-import { isPromiseFunction } from '../../../utils'
 import { IOverrideResult } from '../../override/Override'
 
 export function pasteElement(host: CanvasEvent, elementList: IElement[]) {
@@ -98,7 +97,7 @@ export function pasteImage(host: CanvasEvent, file: File | Blob) {
   }
 }
 
-export async function pasteByEvent(host: CanvasEvent, evt: ClipboardEvent) {
+export function pasteByEvent(host: CanvasEvent, evt: ClipboardEvent) {
   const draw = host.getDraw()
   const isReadonly = draw.isReadonly()
   if (isReadonly) return
@@ -107,9 +106,7 @@ export async function pasteByEvent(host: CanvasEvent, evt: ClipboardEvent) {
   // 自定义粘贴事件
   const { paste } = draw.getOverride()
   if (paste) {
-    const overrideResult = isPromiseFunction(paste)
-      ? await paste(evt)
-      : paste(evt)
+    const overrideResult = paste(evt)
     // 默认阻止默认事件
     if ((<IOverrideResult>overrideResult)?.preventDefault !== false) return
   }
@@ -165,7 +162,7 @@ export async function pasteByApi(host: CanvasEvent, options?: IPasteOption) {
   // 自定义粘贴事件
   const { paste } = draw.getOverride()
   if (paste) {
-    const overrideResult = isPromiseFunction(paste) ? await paste() : paste()
+    const overrideResult = paste()
     // 默认阻止默认事件
     if ((<IOverrideResult>overrideResult)?.preventDefault !== false) return
   }

src/editor/core/override/Override.ts

@@ -4,16 +4,8 @@ export interface IOverrideResult {
 
 export class Override {
   public paste:
-    | ((
-        evt?: ClipboardEvent
-      ) => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>)
-    | undefined
-  public copy:
-    | (() => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>)
-    | undefined
-  public drop:
-    | ((
-        evt: DragEvent
-      ) => void | Promise<void> | IOverrideResult | Promise<IOverrideResult>)
+    | ((evt?: ClipboardEvent) => unknown | IOverrideResult)
     | undefined
+  public copy: (() => unknown | IOverrideResult) | undefined
+  public drop: ((evt: DragEvent) => unknown | IOverrideResult) | undefined
 }

src/editor/utils/index.ts

@@ -326,7 +326,3 @@ export function isObjectEqual(obj1: unknown, obj2: unknown): boolean {
   }
   return !obj1Keys.some(key => obj2[key] !== obj1[key])
 }
-
-export function isPromiseFunction(fn: Function): boolean {
-  return fn?.constructor?.name === 'AsyncFunction'
-}