Merge pull request #61 from Hufe921/feature/tab

feat:add tab event

src/editor/core/event/CanvasEvent.ts

@@ -1,5 +1,5 @@
 import { ElementType } from '../..'
-import { ZERO } from '../../dataset/constant/Common'
+import { NBSP, ZERO } from '../../dataset/constant/Common'
 import { EDITOR_ELEMENT_COPY_ATTR } from '../../dataset/constant/Element'
 import { ElementStyleKey } from '../../dataset/enum/ElementStyle'
 import { MouseEventButton } from '../../dataset/enum/Event'
@@ -453,6 +453,9 @@ export class CanvasEvent {
       evt.preventDefault()
     } else if (evt.key === KeyMap.ESC) {
       this.clearPainterStyle()
+    } else if (evt.key === KeyMap.TAB) {
+      this.input(NBSP.repeat(4))
+      evt.preventDefault()
     }
   }
 

src/editor/dataset/constant/Common.ts

@@ -1,3 +1,4 @@
 export const ZERO = '\u200B'
 export const WRAP = '\n'
 export const HORIZON_TAB = '\t'
+export const NBSP = '\u0020'

src/editor/dataset/enum/KeyMap.ts

@@ -7,6 +7,7 @@ export enum KeyMap {
   Up = 'ArrowUp',
   Down = 'ArrowDown',
   ESC = 'Escape',
+  TAB = 'Tab',
   A = 'a',
   C = 'c',
   S = 's',