fix: 组件getRealPath过滤src空值

src/core/view/components/canvas/index.vue

 <template>
-  <uni-canvas
-    :canvas-id="canvasId"
-    :disable-scroll="disableScroll"
-    v-on="_listeners"
+  <uni-canvas
+    :canvas-id="canvasId"
+    :disable-scroll="disableScroll"
+    v-on="_listeners"
   >
-    <canvas
-      ref="canvas"
-      width="300"
-      height="150"
+    <canvas
+      ref="canvas"
+      width="300"
+      height="150"
     />
     <div style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; overflow: hidden;">
       <slot />
     </div>
-    <v-uni-resize-sensor
-      ref="sensor"
-      @resize="_resize"
+    <v-uni-resize-sensor
+      ref="sensor"
+      @resize="_resize"
     />
   </uni-canvas>
 </template>
@@ -279,37 +279,37 @@ export default {
       }
     },
     preloadImage: function (actions) {
-      var sefl = this
+      var self = this
       actions.forEach(function (action) {
         var method = action.method
         var data = action.data
         var src = ''
         if (method === 'drawImage') {
           src = data[0]
-          src = sefl.$getRealPath(src)
+          src = self.$getRealPath(src)
           data[0] = src
         } else if (method === 'setFillStyle' && data[0] === 'pattern') {
           src = data[1]
-          src = sefl.$getRealPath(src)
+          src = self.$getRealPath(src)
           data[1] = src
         }
-        if (src && !sefl._images[src]) {
+        if (src && !self._images[src]) {
           loadImage()
         }
         /**
          * 加载图像
          */
         function loadImage () {
-          sefl._images[src] = new Image()
-          sefl._images[src].onload = function () {
-            sefl._images[src].ready = true
+          self._images[src] = new Image()
+          self._images[src].onload = function () {
+            self._images[src].ready = true
           }
           /**
            * 从Blob加载
            * @param {Blob} blob
            */
           function loadBlob (blob) {
-            sefl._images[src].src = (window.URL || window.webkitURL).createObjectURL(blob)
+            self._images[src].src = (window.URL || window.webkitURL).createObjectURL(blob)
           }
           /**
            * 从本地文件加载
@@ -318,7 +318,7 @@ export default {
           function loadFile (path) {
             var bitmap = new plus.nativeObj.Bitmap('bitmap' + Date.now())
             bitmap.load(path, function () {
-              sefl._images[src].src = bitmap.toBase64Data()
+              self._images[src].src = bitmap.toBase64Data()
               bitmap.clear()
             }, function () {
               bitmap.clear()
@@ -337,7 +337,7 @@ export default {
                 if (status === 200) {
                   loadFile(d.filename)
                 } else {
-                  sefl._images[src].src = src
+                  self._images[src].src = src
                 }
               }).start()
             }
@@ -350,20 +350,20 @@ export default {
               }
             }
             xhr.onerror = window.plus ? plusDownload : function () {
-              sefl._images[src].src = src
+              self._images[src].src = src
             }
             xhr.send()
           }
 
           if (window.plus && (!window.webkit || !window.webkit.messageHandlers)) {
-            sefl._images[src].src = src
+            self._images[src].src = src
           } else {
             // 解决 PLUS-APP（wkwebview）以及 H5 图像跨域问题（H5图像响应头需包含access-control-allow-origin）
             if (window.plus && src.indexOf('http://') !== 0 && src.indexOf('https://') !==
               0) {
               loadFile(src)
             } else if (/^data:.*,.*/.test(src)) {
-              sefl._images[src].src = src
+              self._images[src].src = src
             } else {
               loadUrl(src)
             }
@@ -449,7 +449,7 @@ export default {
         }, this.$page.id)
         return
       }
-      if (!callbackId) {
+      if (!callbackId) {
         // fix [...]展开TypedArray在低版本手机报错的问题，使用Array.prototype.slice
         return {
           data: Array.prototype.slice.call(imgData.data),

src/core/view/components/image/index.vue

@@ -2,13 +2,13 @@
   <uni-image v-on="$listeners">
     <div
       ref="content"
-      :style="modeStyle"
+      :style="modeStyle"
     />
     <img :src="realImagePath">
     <v-uni-resize-sensor
       v-if="mode === 'widthFix'"
       ref="sensor"
-      @resize="_resize"
+      @resize="_resize"
     />
   </uni-image>
 </template>
@@ -43,7 +43,7 @@ export default {
       return this.originalWidth && this.originalHeight ? this.originalWidth / this.originalHeight : 0
     },
     realImagePath () {
-      return this.src && this.$getRealPath(this.src)
+      return this.$getRealPath(this.src)
     },
     modeStyle () {
       let size = 'auto'

src/core/view/mixins/base.js

@@ -6,10 +6,10 @@ import {
 export default {
   methods: {
     $getRealPath (src) {
-      return getRealPath(src)
+      return src ? getRealPath(src) : src
     },
     $trigger (name, $event, detail) {
       this.$emit(name, processEvent.call(this, name, $event, detail, this.$el, this.$el))
     }
   }
-}
+}