js: update beforeDragging & add itemCanDrag

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

@@ -38,7 +38,16 @@ export declare class FlowLayout extends Superview {
      */
     bounces?: boolean;
     canDrag?: boolean;
-    beforeDragging?: (from: number) => void;
+    /**
+     * @param from
+     * @returns Returns the item of index which can dragged or not.
+     */
+    itemCanDrag?: (from: number) => boolean;
+    /**
+     * @param from
+     * @returns Returns an array of index which can not be swap during dragging.
+     */
+    beforeDragging?: (from: number) => (Array<number> | void);
     onDragging?: (from: number, to: number) => void;
     onDragged?: (from: number, to: number) => void;
     /**

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

@@ -151,6 +151,10 @@ __decorate([
     Property,
     __metadata("design:type", Boolean)
 ], FlowLayout.prototype, "canDrag", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", Function)
+], FlowLayout.prototype, "itemCanDrag", void 0);
 __decorate([
     Property,
     __metadata("design:type", Function)

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

@@ -31,7 +31,16 @@ export declare class HorizontalList extends Superview {
      */
     bounces?: boolean;
     canDrag?: boolean;
-    beforeDragging?: (from: number) => void;
+    /**
+     * @param from
+     * @returns Returns the item of index which can dragged or not.
+     */
+    itemCanDrag?: (from: number) => boolean;
+    /**
+     * @param from
+     * @returns Returns an array of index which can not be swap during dragging.
+     */
+    beforeDragging?: (from: number) => (Array<number> | void);
     onDragging?: (from: number, to: number) => void;
     onDragged?: (from: number, to: number) => void;
     scrollToItem(context: BridgeContext, index: number, config?: {

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

@@ -142,6 +142,10 @@ __decorate([
     Property,
     __metadata("design:type", Boolean)
 ], HorizontalList.prototype, "canDrag", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", Function)
+], HorizontalList.prototype, "itemCanDrag", void 0);
 __decorate([
     Property,
     __metadata("design:type", Function)

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

@@ -37,7 +37,16 @@ export declare class List extends Superview {
      */
     bounces?: boolean;
     canDrag?: boolean;
-    beforeDragging?: (from: number) => void;
+    /**
+     * @param from
+     * @returns Returns the item of index which can dragged or not.
+     */
+    itemCanDrag?: (from: number) => boolean;
+    /**
+     * @param from
+     * @returns Returns an array of index which can not be swap during dragging.
+     */
+    beforeDragging?: (from: number) => (Array<number> | void);
     onDragging?: (from: number, to: number) => void;
     onDragged?: (from: number, to: number) => void;
     scrollToItem(context: BridgeContext, index: number, config?: {

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

@@ -146,6 +146,10 @@ __decorate([
     Property,
     __metadata("design:type", Boolean)
 ], List.prototype, "canDrag", void 0);
+__decorate([
+    Property,
+    __metadata("design:type", Function)
+], List.prototype, "itemCanDrag", void 0);
 __decorate([
     Property,
     __metadata("design:type", Function)