From 0b8a427f070c1127e5dc5b55c169cf4700dee9fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=83=AD=E8=83=9C=E5=BC=BA?= <guoshengqiang@live.com>
Date: Mon, 17 Dec 2018 12:39:17 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=AE=9E=E7=8E=B0API=EF=BC=9Auni.creat?=
 =?UTF-8?q?eContext=E3=80=81uni.drawCanvas?=
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---
 src/core/helpers/protocol/canvas.js    | 15 +++++++++++++
 src/core/service/api/context/canvas.js | 30 ++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/src/core/helpers/protocol/canvas.js b/src/core/helpers/protocol/canvas.js
index 800157974..fb9b55611 100644
--- a/src/core/helpers/protocol/canvas.js
+++ b/src/core/helpers/protocol/canvas.js
@@ -92,3 +92,18 @@ export const canvasToTempFilePath = {
     }
   }
 }
+
+export const drawCanvas = {
+  canvasId: {
+    type: String,
+    require: true
+  },
+  actions: {
+    type: Array,
+    require: true
+  },
+  reserve: {
+    type: Boolean,
+    default: false
+  }
+}
diff --git a/src/core/service/api/context/canvas.js b/src/core/service/api/context/canvas.js
index 5469cf8fc..1c8872e15 100644
--- a/src/core/service/api/context/canvas.js
+++ b/src/core/service/api/context/canvas.js
@@ -422,6 +422,16 @@ class CanvasContext {
       this.subpath = [this.subpath.shift()]
     }
   }
+  clearActions () {
+    this.actions = []
+    this.path = []
+    this.subpath = []
+  }
+  getActions () {
+    var actions = [...this.actions]
+    this.clearActions()
+    return actions
+  }
 }
 
 [...methods1, ...methods2].forEach(function (method) {
@@ -700,3 +710,23 @@ export function canvasToTempFilePath ({
     callbackId: cId
   })
 }
+
+export function createContext () {
+  return new CanvasContext()
+}
+
+export function drawCanvas ({
+  canvasId,
+  actions,
+  reserve
+}) {
+  const app = getApp()
+  if (app.$route && app.$route.params.__id__) {
+    operateCanvas(canvasId, app.$route.params.__id__, 'actionsChanged', {
+      actions,
+      reserve
+    })
+  } else {
+    UniServiceJSBridge.emit('onError', 'drawCanvas:fail')
+  }
+}
-- 
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