import ScrollOut from "./ScrollOut";

const { ccclass, property, menu } = cc._decorator;

@ccclass
@menu('Scroll/ScrollInner')
export default class ScrollInner extends cc.ScrollView {

    scrollOutView: ScrollOut
    canScroll: boolean = true

    setOuterScrollView(outer) {
        this.scrollOutView = outer;
    }

    //#region 重写cc.ScrollView的方法
    _onTouchMoved(event, captureListeners) {
        if (!this.enabledInHierarchy) return;
        if (this._hasNestedViewGroup(event, captureListeners)) return;

        var touch = event.touch;
        var deltaMove = touch.getLocation().sub(touch.getStartLocation());

        if (this.content) {
            if (this.canScroll) {
                this["_handleMoveLogic"](touch);
            }
        }

        if (!this.cancelInnerEvents) {
            return;
        }

        if (deltaMove.mag() > 7) {
            if (!this["_touchMoved"] && event.target !== this.node) {
                var cancelEvent = new cc.Event.EventTouch(event.getTouches(), event.bubbles);
                cancelEvent.type = cc.Node.EventType.TOUCH_CANCEL;
                cancelEvent.touch = event.touch;
                cancelEvent["simulate"] = true;
                event.target.dispatchEvent(cancelEvent);
                this["_touchMoved"] = true;
            }
        }
        this["_stopPropagationIfTargetIsMe"](event);
    }

    //#region 重写cc.ScrollView的方法
    _hasNestedViewGroup(event, captureListeners) {
        if (event.eventPhase !== cc.Event.CAPTURING_PHASE) return;
        //不阻止out上onTouch事件执行。
        return false;
    }
    //#endregion
}