feat:add PlcaeHolder and Error setting for Image

doric-js/lib/src/widget/image.d.ts

@@ -1,4 +1,5 @@
 import { IView, View } from "../ui/view";
+import { Color } from "../util/color";
 export declare enum ScaleType {
     ScaleToFill = 0,
     ScaleAspectFit = 1,
@@ -9,6 +10,10 @@ export interface IImage extends IView {
     imageBase64?: string;
     scaleType?: ScaleType;
     isBlur?: boolean;
+    placeHolderImage?: string;
+    placeHolderColor?: Color;
+    errorImage?: string;
+    errorColor?: Color;
     loadCallback?: (image: {
         width: number;
         height: number;
@@ -19,6 +24,28 @@ export declare class Image extends View implements IImage {
     imageBase64?: string;
     scaleType?: ScaleType;
     isBlur?: boolean;
+    /**
+     * Display while image is loading
+     * Local file name
+     */
+    placeHolderImage?: string;
+    /**
+     * Display while image is loading
+     * Color
+     * This priority is lower than placeHolderImage
+     */
+    placeHolderColor?: Color;
+    /**
+     * Display while image is failed to load
+     * It can be file name in local path
+     */
+    errorImage?: string;
+    /**
+     * Display while image is failed to load
+     * Color
+     * This priority is lower than errorImage
+     */
+    errorColor?: Color;
     loadCallback?: (image: {
         width: number;
         height: number;

doric-js/lib/src/widget/image.js

@@ -24,6 +24,7 @@ var __metadata = (this && this.__metadata) || function (k, v) {
  */
 import { View, Property } from "../ui/view";
 import { layoutConfig } from "../util/layoutconfig";
+import { Color } from "../util/color";
 export var ScaleType;
 (function (ScaleType) {
     ScaleType[ScaleType["ScaleToFill"] = 0] = "ScaleToFill";
@@ -48,6 +49,27 @@ __decorate([
     Property,
     __metadata("design:type", Boolean)
 ], Image.prototype, "isBlur", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", String)
+], Image.prototype, "placeHolderImage", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", Color
+    /**
+     * Display while image is failed to load
+     * It can be file name in local path
+     */
+    )
+], Image.prototype, "placeHolderColor", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", String)
+], Image.prototype, "errorImage", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", Color)
+], Image.prototype, "errorColor", void 0);
 __decorate([
     Property,
     __metadata("design:type", Function)