Adds more information to onDoubleClick callback

src/image-zoom/image-zoom.component.tsx

@@ -121,17 +121,18 @@ export default class ImageViewer extends React.Component<Props, State> {
           if (new Date().getTime() - this.lastClickTime < (this.props.doubleClickInterval || 0)) {
             // 认为触发了双击
             this.lastClickTime = 0;
+
+            // 因为可能触发放大，因此记录双击时的坐标位置
+            this.doubleClickX = evt.nativeEvent.changedTouches[0].pageX;
+            this.doubleClickY = evt.nativeEvent.changedTouches[0].pageY;
+
             if (this.props.onDoubleClick) {
-              this.props.onDoubleClick();
+              this.props.onDoubleClick({ pageX: this.doubleClickX, pageY: this.doubleClickY });
             }
 
             // 取消长按
             clearTimeout(this.longPressTimeout);
 
-            // 因为可能触发放大，因此记录双击时的坐标位置
-            this.doubleClickX = evt.nativeEvent.changedTouches[0].pageX;
-            this.doubleClickY = evt.nativeEvent.changedTouches[0].pageY;
-
             // 缩放
             this.isDoubleClick = true;
 

src/image-zoom/image-zoom.type.ts

@@ -22,6 +22,11 @@ export interface IOnClick {
   pageY: number
 }
 
+export interface IOnDoubleClick {
+  pageX: number,
+  pageY: number
+}
+
 export class Props {
   /**
    * 操作区域宽度
@@ -121,7 +126,7 @@ export class Props {
   /**
    * 双击的回调
    */
-  public onDoubleClick?: () => void = () => {
+  public onDoubleClick?: (eventParams: IOnDoubleClick) => void = () => {
     //
   };