From ac1a072bf9e1c7b818365c661eeaa6d8bc7f720a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E4=BA=91=E9=A3=9E?= <huangyunfeihufe@hotmail.com>
Date: Sat, 13 Nov 2021 23:38:15 +0800
Subject: [PATCH] =?UTF-8?q?feat:=E6=92=A4=E9=94=80=E9=87=8D=E5=81=9A?=
 =?UTF-8?q?=E6=8C=89=E9=92=AE=E5=91=BD=E4=BB=A4=E6=B3=A8=E5=86=8C?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/editor/core/command/Command.ts |  8 ++++----
 src/main.ts                        | 12 ++++++++++++
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/editor/core/command/Command.ts b/src/editor/core/command/Command.ts
index 17f47f5..e57765c 100644
--- a/src/editor/core/command/Command.ts
+++ b/src/editor/core/command/Command.ts
@@ -7,16 +7,16 @@ export class Command {
 
   constructor(draw: Draw) {
     const historyManager = draw.getHistoryManager()
-    this.undo = historyManager.undo
-    this.redo = historyManager.redo
+    this.undo = historyManager.undo.bind(historyManager)
+    this.redo = historyManager.redo.bind(historyManager)
   }
 
   public executeUndo() {
-    return this.undo
+    return this.undo()
   }
 
   public executeRedo() {
-    return this.redo
+    return this.redo()
   }
 
 }
\ No newline at end of file
diff --git a/src/main.ts b/src/main.ts
index 4980919..e6e486f 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -2,6 +2,7 @@ import './style.css'
 import Editor from './editor'
 
 window.onload = function () {
+
   const canvas = document.querySelector<HTMLCanvasElement>('canvas')
   if (!canvas) return
   const text = `\n主诉：\n发热三天，咳嗽五天。\n现病史：\n发病前14天内有病历报告社区的旅行时或居住史；发病前14天内与新型冠状病毒感染的患者或无症状感染者有接触史；发病前14天内解除过来自病历报告社区的发热或有呼吸道症状的患者；聚集性发病，2周内在小范围如家庭、办公室、学校班级等场所，出现2例及以上发热或呼吸道症状的病例。\n既往史：\n有糖尿病10年，有高血压2年，有传染性疾病1年。\n体格检查：\nT：36.5℃，P：80bpm，R：20次/分，BP：120/80mmHg；\n辅助检查：\n2020年6月10日，普放：血细胞比容36.50%（偏低）40～50；单核细胞绝对值0.75*10^9/L（偏高）参考值：0.1～0.6；\n门诊诊断：\n1.高血压\n处置治疗：\n1.超声引导下甲状腺细针穿刺术；\n2.乙型肝炎表面抗体测定；\n3.膜式病变细胞采集术、后颈皮下肤层；\n4.氯化钠注射液 250ml/袋、1袋；\n5.七叶皂苷钠片（欧开）、30mg/片*24/盒、1片、口服、BID（每日两次）、1天`
@@ -43,4 +44,15 @@ window.onload = function () {
     margins: [120, 120, 200, 120]
   })
   console.log('编辑器实例: ', instance)
+
+  // 事件注册
+  document.querySelector<HTMLDivElement>('.menu-item__undo')!.onclick = function () {
+    console.log('undo')
+    instance.command.executeUndo()
+  }
+  document.querySelector<HTMLDivElement>('.menu-item__redo')!.onclick = function () {
+    console.log('redo')
+    instance.command.executeRedo()
+  }
+
 }
\ No newline at end of file