fix: fix on-error event and add on-progress event(hujiulong#15).

fix hujiulong#15

package.json

@@ -32,6 +32,7 @@
     "copy-webpack-plugin": "^4.0.1",
     "cross-env": "^5.0.0",
     "css-loader": "^0.28.0",
+    "cz-conventional-changelog": "^2.1.0",
     "eventsource-polyfill": "^0.9.6",
     "express": "^4.14.1",
     "extract-text-webpack-plugin": "^2.0.0",

src/model-gltf.vue

@@ -47,6 +47,10 @@ export default {
 
                 this.$emit( 'on-load' );
 
+            }, xhr => {
+                
+                this.$emit( 'on-progress', xhr );
+
             }, err => {
 
                 this.$emit( 'on-error', err );

src/model-mixin.vue

@@ -454,6 +454,10 @@ export default {
 
                 this.$emit( 'on-load' );
 
+            }, xhr => {
+                
+                this.$emit( 'on-progress', xhr );
+
             }, err => {
 
                 this.$emit( 'on-error', err );

src/model-obj.vue

@@ -84,6 +84,12 @@ export default {
 
             }
 
+            const onProgress = xhr => {
+
+                this.$emit( 'on-progress', xhr );
+
+            }
+
             const onError = err => {
 
                 this.$emit( 'on-error', err );
@@ -116,13 +122,13 @@ export default {
 
                     this.loader.setMaterials( materials );
 
-                    this.loader.load( this.src, onLoad, onError );
+                    this.loader.load( this.src, onLoad, onProgress, onError );
 
-                }, onError );
+                }, () => {}, onError );
 
             } else {
     
-                this.loader.load( this.src, onLoad, onError );
+                this.loader.load( this.src, onLoad, onProgress, onError );
 
             }
 

src/model-sea3d.vue

@@ -44,6 +44,10 @@ export default {
 
                 this.$emit( 'on-load' );
 
+            }, xhr => {
+                
+                this.$emit( 'on-progress', xhr );
+
             }, err => {
 
                 console.log( err )