548 lines
24 KiB
TypeScript
548 lines
24 KiB
TypeScript
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import UISuperLayout from "./UISuperLayout";
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const { ccclass, property } = cc._decorator;
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const quintEaseOut: (time: number) => number = (time: number) => {
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time -= 1;
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return (time * time * time * time * time + 1);
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};
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const EPSILON = 1e-4;
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const OUT_OF_BOUNDARY_BREAKING_FACTOR = 0.05;
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var _tempVec2: cc.Vec2 = new cc.Vec2();
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export enum ScrollViewDirection {
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HORIZONTAL,
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VERTICAL,
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NONE,
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}
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@ccclass
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export default class UISuperScrollview extends cc.ScrollView {
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private direction: ScrollViewDirection = ScrollViewDirection.NONE;
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private _layout: UISuperLayout;
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@property({
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tooltip: "注意！向上传递事件只会发送当前滑动相反方向,如果开启horizontal则会发送vertical事件。如果开启vertical则会发送horizontal事件。同时开启horizontal和vertical 不会发送任何事件"
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}) isTransmitEvent: boolean = false;
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@property pullRefresh: boolean = false;
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@property({
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displayName: "顶部偏移量",
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tooltip: "下拉时超过此偏移会发送下拉事件",
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visible: function () { return (this as any).pullRefresh; }
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}) headerOutOffset: number = 200;
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@property({
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displayName: "满足触发Header的倍数",
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visible: function () { return (this as any).pullRefresh; }
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}) headerMultiple: number = 2;
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@property({
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displayName: "底部偏移量",
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tooltip: "上拉时超过此偏移会发送上拉事件",
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visible: function () { return (this as any).pullRefresh; }
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}) footerOutOffset: number = 200;
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@property({
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displayName: "满足触发Footer的倍数",
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visible: function () { return (this as any).pullRefresh; }
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}) footerMultiple: number = 2;
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@property({
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type: cc.Component.EventHandler,
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visible: function () { return (this as any).pullRefresh; }
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}) headerEvents: cc.Component.EventHandler[] = [];
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@property({
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type: cc.Component.EventHandler,
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visible: function () { return (this as any).pullRefresh; }
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}) footerEvents: cc.Component.EventHandler[] = [];
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prevLocation: cc.Vec2 = new cc.Vec2();
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location: cc.Vec2 = new cc.Vec2();
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set autoScrolling(value: boolean) { (this as any)._autoScrolling = value; }
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private _touchBeganPosition = new cc.Vec2();
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private _touchEndPosition = new cc.Vec2();
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private isMoveHeader: boolean = false;
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private isMoveFooter: boolean = false;
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private isLockHeader: boolean = false;
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private isLockFooter: boolean = false;
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private headerProgress: number = 0;
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private footerProgress: number = 0;
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private isCustomScroll: boolean = false;
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canTouchMove: boolean = true;
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get view(): cc.Node { return this["_view"]; }
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onLoad() {
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if (this.layout && this.layout.autoCenter) {
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this.brake = 0.7;
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}
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}
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public onEnable() {
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super.onEnable();
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this.node.on("scroll-ended-with-threshold", this.dispatchPageTurningEvent, this);
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}
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public onDisable() {
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super.onDisable();
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this.node.off("scroll-ended-with-threshold", this.dispatchPageTurningEvent, this);
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}
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get layout() {
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if (!this._layout) {
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this._layout = this.content && this.content.getComponent(UISuperLayout);
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}
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return this._layout;
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}
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private isCallSoonFinish: boolean = false;
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get _curPageIdx() {
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return this.layout["_currPageIndex"];
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}
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getPages() {
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return new Array(this.layout.itemTotal);
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}
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protected _getContentTopBoundary() {
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if (!this.content) {
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return -1;
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}
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let offset = this.layout.isOfTopBoundary == 0 ? this["_topBoundary"] : this.layout.isOfTopBoundary;
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return offset;
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}
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protected _getContentBottomBoundary() {
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if (!this.content) {
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return -1;
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}
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let offset = this.layout.isOfButtomBoundary == 0 ? this["_bottomBoundary"] : this.layout.isOfButtomBoundary;
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return offset;
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}
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protected _getContentLeftBoundary() {
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if (!this.content) {
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return -1;
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}
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let offset = this.layout.isOfLeftBoundary == 0 ? this["_leftBoundary"] : this.layout.isOfLeftBoundary;
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return offset;
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}
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protected _getContentRightBoundary() {
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if (!this.content) {
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return -1;
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}
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let offset = this.layout.isOfRightBoundary == 0 ? this["_rightBoundary"] : this.layout.isOfRightBoundary;
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return offset;
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}
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public _onTouchBegan(event: cc.Event.EventTouch, captureListeners?: Node[]): void {
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this.isCallSoonFinish = false;
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this.isCustomScroll = false;
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this.layout["onTouchBegin"]();
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if (!this.canTouchMove) {
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return;
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}
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this.direction = ScrollViewDirection.NONE;
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if (this.layout.isPageView) {
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_tempVec2 = event.getLocation();
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// cc.Vec2.set(this._touchBeganPosition, _tempVec2.x, _tempVec2.y)
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this._touchBeganPosition = cc.v2(_tempVec2.x, _tempVec2.y);
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}
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super["_onTouchBegan"](event, captureListeners);
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if (this.isTransmitEvent) {
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this.transmitEvent(event, cc.Node.EventType.TOUCH_START);
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}
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}
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public _onTouchMoved(event: cc.Event.EventTouch, captureListeners: any) {
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this.isCallSoonFinish = false;
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this.isCustomScroll = false;
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if (!this.canTouchMove) return;
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if (this.isTransmitEvent) {
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if (this.direction == ScrollViewDirection.NONE) {
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var start = event.getStartLocation();
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var curre = event.getLocation();
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var xOffset = Math.abs(start.x - curre.x);
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var yOffset = Math.abs(start.y - curre.y);
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if (xOffset > yOffset) {
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// 本ScrollView滑动方向过程中达到一定偏移量是也可以向上发送事件
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// if (this.vertical) {
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// if (xOffset - yOffset > 50) {
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// this.direction = UIScrollViewDirection.HORIZONTAL
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// }
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// }
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this.direction = ScrollViewDirection.HORIZONTAL;
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} else if (yOffset > xOffset) {
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// 本ScrollView滑动方向过程中达到一定偏移量是也可以向上发送事件
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// if (this.horizontal) {
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// if (yOffset - xOffset > 50) {
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// this.direction = UIScrollViewDirection.VERTICAL
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// }
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// }
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this.direction = ScrollViewDirection.VERTICAL;
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}
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}
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var canTransmit = (this.vertical && this.direction === ScrollViewDirection.HORIZONTAL) || this.horizontal && this.direction == ScrollViewDirection.VERTICAL;
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if (canTransmit) {
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this.transmitEvent(event, cc.Node.EventType.TOUCH_MOVE);
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event.stopPropagation();
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return;
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}
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}
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this.prevLocation = event.touch.getPreviousLocation();
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this.location = event.touch.getLocation();
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super["_onTouchMoved"](event, captureListeners);
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if (this.pullRefresh) {
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let outOfBoundary = this["_getHowMuchOutOfBoundary"]();
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let offset = this.vertical ? outOfBoundary.y : -outOfBoundary.x;
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if (offset > 0 && !this.isLockHeader && !this.isLockFooter) {
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this.headerProgress = offset < EPSILON ? 0 : offset / this.headerOutOffset;
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this.isMoveHeader = this.headerProgress >= this.headerMultiple;
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cc.Component.EventHandler.emitEvents(this.headerEvents, this, { action: false, progress: this.headerProgress, stage: this.isMoveHeader ? "wait" : "touch" });
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cc.Component.EventHandler.emitEvents(this.footerEvents, this, { action: false, progress: 0, stage: "release" });
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} else if (offset < 0 && !this.isLockHeader && !this.isLockFooter) {
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this.footerProgress = -offset < EPSILON ? 0 : -offset / this.footerOutOffset;
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this.isMoveFooter = this.footerProgress >= this.footerMultiple;
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cc.Component.EventHandler.emitEvents(this.footerEvents, this, { action: false, progress: this.footerProgress, stage: this.isMoveFooter ? "wait" : "touch" });
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cc.Component.EventHandler.emitEvents(this.headerEvents, this, { action: false, progress: 0, stage: "release" });
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} else if (offset == 0 && !this.isLockHeader && !this.isLockFooter) {
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this.clearProgress();
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}
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}
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}
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public _onTouchEnded(event: cc.Event.EventTouch, captureListeners: any) {
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this.isCallSoonFinish = false;
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this.isCustomScroll = false;
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if (!this.canTouchMove) return;
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if (this.layout.isPageView) {
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_tempVec2 = event.getLocation();
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// cc.Vec2.set(this._touchEndPosition, _tempVec2.x, _tempVec2.y)
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this._touchEndPosition = cc.v2(_tempVec2.x, _tempVec2.y);
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}
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super["_onTouchEnded"](event, captureListeners);
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if (this.isTransmitEvent) {
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this.transmitEvent(event, cc.Node.EventType.TOUCH_END);
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}
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}
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public _onTouchCancelled(event: cc.Event.EventTouch, captureListeners: any) {
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this.isCallSoonFinish = false;
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this.isCustomScroll = false;
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if (!this.canTouchMove) return;
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if (this.layout.isPageView) {
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_tempVec2 = event.getLocation();
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// cc.Vec2.set(this._touchEndPosition, _tempVec2.x, _tempVec2.y)
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this._touchEndPosition = cc.v2(_tempVec2.x, _tempVec2.y);
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}
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if (this.isTransmitEvent) {
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this.transmitEvent(event, cc.Node.EventType.TOUCH_CANCEL);
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}
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super["_onTouchCancelled"](event, captureListeners);
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}
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scrollToAny(moveDelta: cc.Vec2, timeInSecond?: number, attenuated: boolean = true) {
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this.isCustomScroll = true;
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if (timeInSecond) {
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this._startAutoScroll(moveDelta, timeInSecond, attenuated, true);
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} else {
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this["_moveContent"](moveDelta);
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}
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}
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release() {
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this.isMoveHeader = false;
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this.isMoveFooter = false;
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if (this.isLockHeader || this.isLockFooter) {
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this.vertical && this.isLockHeader && (this["_topBoundary"] += this.headerOutOffset);
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this.vertical && this.isLockFooter && (this["_bottomBoundary"] -= this.footerOutOffset);
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this.horizontal && this.isLockHeader && (this["_leftBoundary"] -= this.headerOutOffset);
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this.horizontal && this.isLockFooter && (this["_rightBoundary"] += this.footerOutOffset);
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this.clearProgress();
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this.layout["onPositionChanged"]();
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this.isLockHeader = false;
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this.isLockFooter = false;
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this.startAutoScroll();
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}
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}
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startAutoScroll() {
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this["_autoScrolling"] = true;
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this["_outOfBoundaryAmountDirty"] = true;
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}
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protected _startAutoScroll(deltaMove: any, timeInSecond: any, attenuated: any, flag: boolean = false) {
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if (this.pullRefresh) { // 如果没有刷新/加载的监听者 则不计算
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if (this.isMoveHeader && !this.isLockHeader) {
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if (this.vertical) {
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this["_topBoundary"] -= this.headerOutOffset;
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deltaMove.y -= this.headerOutOffset;
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}
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if (this.horizontal) {
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this["_leftBoundary"] += this.headerOutOffset;
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deltaMove.x += this.headerOutOffset;
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}
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this.isLockHeader = true;
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cc.Component.EventHandler.emitEvents(this.headerEvents, this, { action: true, progress: this.headerProgress, stage: 'lock' });
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} else if (this.isMoveFooter && !this.isLockFooter) {
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if (this.vertical) {
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this["_bottomBoundary"] += this.footerOutOffset;
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deltaMove.y += this.footerOutOffset;
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}
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if (this.horizontal) {
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this["_rightBoundary"] -= this.footerOutOffset;
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deltaMove.x -= this.footerOutOffset;
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}
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this.isLockFooter = true;
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cc.Component.EventHandler.emitEvents(this.footerEvents, this, { action: true, progress: this.footerProgress, stage: 'lock' });
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}
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}
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super["_startAutoScroll"](deltaMove, timeInSecond, attenuated);
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if (!flag && this.layout.autoCenter) {
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const touchMoveVelocity = this["_calculateTouchMoveVelocity"]();
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if (!this.isQuicklyScrollable(touchMoveVelocity)) {
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this.soonFinish();
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}
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}
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}
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protected _updateScrollBar(outOfBoundary: any) {
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super["_updateScrollBar"](cc.v2(outOfBoundary.x, outOfBoundary.y));
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if (this["_autoScrollBraking"]) return; // 自动回弹时不计算 （非手动）
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if (!this["_autoScrolling"]) return; // 非自动滚动时不计算
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if (!this.pullRefresh) return;
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let offset = this.vertical ? outOfBoundary.y : -outOfBoundary.x;
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if (offset > 0) { // 下滑
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let progress = offset < EPSILON ? 0 : offset / this.headerOutOffset; //根据参数 headerOutOffset 计算当前下滑的办百分比
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if (this.isLockHeader) {
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this.headerProgress = this.headerProgress == 1 ? this.headerProgress : Math.max(progress, 1);
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cc.Component.EventHandler.emitEvents(this.headerEvents, this, { action: false, progress: this.headerProgress, stage: "lock" });
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} else {
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this.headerProgress = progress < this.headerProgress ? progress : this.headerProgress;
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cc.Component.EventHandler.emitEvents(this.headerEvents, this, { action: false, progress: this.headerProgress, stage: "release" });
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}
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} else if (offset < 0) {
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let progress = -offset < EPSILON ? 0 : -offset / this.footerOutOffset; //根据参数 footerOutOffset 计算当前下滑的办百分比
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if (this.isLockFooter) {
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this.footerProgress = this.footerProgress == 1 ? this.footerProgress : Math.max(progress, 1);
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cc.Component.EventHandler.emitEvents(this.footerEvents, this, { action: false, progress: this.footerProgress, stage: "lock" });
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} else {
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this.footerProgress = progress < this.footerProgress ? progress : this.footerProgress;
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cc.Component.EventHandler.emitEvents(this.footerEvents, this, { action: false, progress: this.footerProgress, stage: "release" });
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}
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} else if (offset == 0) {
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// 正常滑动时 如果没有锁定头和尾时 释放所有进度
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if (!this.isLockHeader && !this.isLockFooter) {
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this.clearProgress();
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}
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}
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}
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|
|
private clearProgress() {
|
||
|
|
cc.Component.EventHandler.emitEvents(this.headerEvents, this, { action: false, progress: 0, stage: "release" });
|
||
|
|
cc.Component.EventHandler.emitEvents(this.footerEvents, this, { action: false, progress: 0, stage: "release" });
|
||
|
|
}
|
||
|
|
private dispatchPageTurningEvent() {
|
||
|
|
if (this.layout["_lastPageIndex"] === this.layout["_currPageIndex"]) return;
|
||
|
|
this.layout["_lastPageIndex"] = this.layout["_currPageIndex"];
|
||
|
|
cc.Component.EventHandler.emitEvents(this.layout.pageEvents, this, "page-turning");
|
||
|
|
this.node.emit("page-turning", this);
|
||
|
|
}
|
||
|
|
|
||
|
|
protected _handleReleaseLogic(touch: any) {
|
||
|
|
if (this.layout.isPageView) {
|
||
|
|
this._autoScrollToPage();
|
||
|
|
if (this["_scrolling"]) {
|
||
|
|
this["_scrolling"] = false;
|
||
|
|
if (!this["_autoScrolling"]) {
|
||
|
|
this["_dispatchEvent"](cc.ScrollView.EventType.SCROLL_ENDED);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
super["_handleReleaseLogic"](touch);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
protected _autoScrollToPage() {
|
||
|
|
const bounceBackStarted = this["_startBounceBackIfNeeded"]();
|
||
|
|
if (bounceBackStarted) {
|
||
|
|
const bounceBackAmount = this["_getHowMuchOutOfBoundary"]();
|
||
|
|
this["_clampDelta"](bounceBackAmount);
|
||
|
|
if (bounceBackAmount.x > 0 || bounceBackAmount.y < 0) {
|
||
|
|
if (this.layout.horizontal) {
|
||
|
|
if (this.layout.horizontalAxisDirection == UISuperLayout.HorizontalAxisDirection.LEFT_TO_RIGHT) {
|
||
|
|
this.layout["_currPageIndex"] = this.layout.itemTotal === 0 ? 0 : this.layout.itemTotal - 1;
|
||
|
|
} else {
|
||
|
|
this.layout["_currPageIndex"] = 0;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (this.layout.verticalAxisDirection == UISuperLayout.VerticalAxisDirection.TOP_TO_BOTTOM) {
|
||
|
|
this.layout["_currPageIndex"] = this.layout.itemTotal === 0 ? 0 : this.layout.itemTotal - 1;
|
||
|
|
} else {
|
||
|
|
this.layout["_currPageIndex"] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (bounceBackAmount.x < 0 || bounceBackAmount.y > 0) {
|
||
|
|
if (this.layout.horizontal) {
|
||
|
|
if (this.layout.horizontalAxisDirection == UISuperLayout.HorizontalAxisDirection.LEFT_TO_RIGHT) {
|
||
|
|
this.layout["_currPageIndex"] = 0;
|
||
|
|
} else {
|
||
|
|
this.layout["_currPageIndex"] = this.layout.itemTotal === 0 ? 0 : this.layout.itemTotal - 1;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (this.layout.verticalAxisDirection == UISuperLayout.VerticalAxisDirection.TOP_TO_BOTTOM) {
|
||
|
|
this.layout["_currPageIndex"] = 0;
|
||
|
|
} else {
|
||
|
|
this.layout["_currPageIndex"] = this.layout.itemTotal === 0 ? 0 : this.layout.itemTotal - 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (this.layout.indicator) {
|
||
|
|
this.layout.indicator["_changedState"]();
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
const moveOffset = new cc.Vec2();
|
||
|
|
// cc.Vec2.subtract(moveOffset, this._touchBeganPosition, this._touchEndPosition)
|
||
|
|
moveOffset.x = this._touchBeganPosition.x - this._touchEndPosition.x;
|
||
|
|
moveOffset.y = this._touchBeganPosition.y - this._touchEndPosition.y;
|
||
|
|
|
||
|
|
|
||
|
|
const index = this.layout["_currPageIndex"];
|
||
|
|
var nextIndex = index + this.getDragDirection(moveOffset);
|
||
|
|
var timeInSecond = this.layout.pageTurningSpeed * Math.abs(index - nextIndex);
|
||
|
|
if (this.layout.footerLoop) {
|
||
|
|
if (nextIndex >= this.layout.itemTotal) {
|
||
|
|
nextIndex = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (this.layout.headerLoop) {
|
||
|
|
if (nextIndex < 0) {
|
||
|
|
nextIndex = this.layout.itemTotal - 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const count = this.layout.itemTotal;
|
||
|
|
if (nextIndex < count) {
|
||
|
|
if (this.isScrollable(moveOffset, index, nextIndex)) {
|
||
|
|
this.scrollToPage(nextIndex, timeInSecond);
|
||
|
|
return;
|
||
|
|
} else {
|
||
|
|
const touchMoveVelocity = this["_calculateTouchMoveVelocity"]();
|
||
|
|
if (this.isQuicklyScrollable(touchMoveVelocity)) {
|
||
|
|
this.scrollToPage(nextIndex, timeInSecond);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.scrollToPage(index, timeInSecond);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
savePageIndex(idx: number) {
|
||
|
|
if (idx < 0 || idx >= this.layout.itemTotal) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
this.layout["_currPageIndex"] = idx;
|
||
|
|
if (this.layout.indicator) {
|
||
|
|
this.layout.indicator["_changedState"]();
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
protected scrollToPage(idx: number, timeInSecond = 0.3) {
|
||
|
|
if (idx < 0 || idx >= this.layout.itemTotal) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (this.savePageIndex(idx)) {
|
||
|
|
this.layout.scrollToIndex(idx, timeInSecond);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// 快速滑动
|
||
|
|
protected isQuicklyScrollable(touchMoveVelocity: cc.Vec3) {
|
||
|
|
if (this.horizontal) {
|
||
|
|
if (Math.abs(touchMoveVelocity.x) > this.layout.autoPageTurningThreshold) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
} else if (this.vertical) {
|
||
|
|
if (Math.abs(touchMoveVelocity.y) > this.layout.autoPageTurningThreshold) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
protected getDragDirection(moveOffset: cc.Vec2) {
|
||
|
|
if (this.horizontal) {
|
||
|
|
if (moveOffset.x === 0) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (this.layout.horizontalAxisDirection == UISuperLayout.HorizontalAxisDirection.LEFT_TO_RIGHT) {
|
||
|
|
return (moveOffset.x > 0 ? this.layout.groupItemTotal : -this.layout.groupItemTotal);
|
||
|
|
} else {
|
||
|
|
return (moveOffset.x < 0 ? this.layout.groupItemTotal : -this.layout.groupItemTotal);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// 由于滚动 Y 轴的原点在在右上角所以应该是小于 0
|
||
|
|
if (moveOffset.y === 0) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (this.layout.verticalAxisDirection == UISuperLayout.VerticalAxisDirection.TOP_TO_BOTTOM) {
|
||
|
|
return (moveOffset.y < 0 ? this.layout.groupItemTotal : -this.layout.groupItemTotal);
|
||
|
|
} else {
|
||
|
|
return (moveOffset.y > 0 ? this.layout.groupItemTotal : -this.layout.groupItemTotal);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// 是否超过自动滚动临界值
|
||
|
|
protected isScrollable(offset: cc.Vec2, index: number, nextIndex: number) {
|
||
|
|
const viewTrans = this.view;
|
||
|
|
if (!viewTrans) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (this.horizontal) {
|
||
|
|
return Math.abs(offset.x) >= viewTrans.width * this.layout.scrollThreshold;
|
||
|
|
} else if (this.vertical) {
|
||
|
|
return Math.abs(offset.y) >= viewTrans.height * this.layout.scrollThreshold;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
protected transmitEvent(event: any, eventType: string) {
|
||
|
|
var e = new cc.Event.EventTouch(event.getTouches(), event.bubbles);
|
||
|
|
e.type = eventType;
|
||
|
|
e.touch = event.touch;
|
||
|
|
let target: any = event.target;
|
||
|
|
target.parent.dispatchEvent(e);
|
||
|
|
}
|
||
|
|
private soonFinish() {
|
||
|
|
this.isCallSoonFinish = true;
|
||
|
|
this.layout["soonFinish"]();
|
||
|
|
}
|
||
|
|
protected _processAutoScrolling(dt: number) {
|
||
|
|
let isAutoScrollBrake = this["_isNecessaryAutoScrollBrake"]();
|
||
|
|
let brakingFactor = isAutoScrollBrake ? OUT_OF_BOUNDARY_BREAKING_FACTOR : 1;
|
||
|
|
this["_autoScrollAccumulatedTime"] += dt * (1 / brakingFactor);
|
||
|
|
|
||
|
|
let percentage = Math.min(1, this["_autoScrollAccumulatedTime"] / this["_autoScrollTotalTime"]);
|
||
|
|
if (this["_autoScrollAttenuate"]) {
|
||
|
|
percentage = quintEaseOut(percentage);
|
||
|
|
}
|
||
|
|
|
||
|
|
let newPosition = this["_autoScrollStartPosition"].add(this["_autoScrollTargetDelta"].mul(percentage));
|
||
|
|
let reachedEnd = Math.abs(percentage - 1) <= EPSILON;
|
||
|
|
|
||
|
|
let fireEvent = Math.abs(percentage - 1) <= this["getScrollEndedEventTiming"]();
|
||
|
|
if (fireEvent && !this["_isScrollEndedWithThresholdEventFired"]) {
|
||
|
|
this["_dispatchEvent"]('scroll-ended-with-threshold');
|
||
|
|
this["_isScrollEndedWithThresholdEventFired"] = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.elastic) {
|
||
|
|
let brakeOffsetPosition = newPosition.sub(this["_autoScrollBrakingStartPosition"]);
|
||
|
|
if (isAutoScrollBrake) {
|
||
|
|
brakeOffsetPosition = brakeOffsetPosition.mul(brakingFactor);
|
||
|
|
}
|
||
|
|
newPosition = this["_autoScrollBrakingStartPosition"].add(brakeOffsetPosition);
|
||
|
|
} else {
|
||
|
|
let moveDelta = newPosition.sub(this.getContentPosition());
|
||
|
|
let outOfBoundary = this["_getHowMuchOutOfBoundary"](moveDelta);
|
||
|
|
if (!outOfBoundary.fuzzyEquals(cc.v2(0, 0), EPSILON)) {
|
||
|
|
newPosition = newPosition.add(outOfBoundary);
|
||
|
|
reachedEnd = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (reachedEnd) {
|
||
|
|
this["_autoScrolling"] = false;
|
||
|
|
}
|
||
|
|
if (this.layout.autoCenter && !this.isCallSoonFinish && !this.isCustomScroll) {
|
||
|
|
if (this["_autoScrollTotalTime"] < 2 || percentage >= 0.8) {
|
||
|
|
this.soonFinish();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
let deltaMove = newPosition.sub(this.getContentPosition());
|
||
|
|
this["_moveContent"](this["_clampDelta"](deltaMove), reachedEnd);
|
||
|
|
this["_dispatchEvent"]('scrolling');
|
||
|
|
if (!this["_autoScrolling"]) {
|
||
|
|
this["_isBouncing"] = false;
|
||
|
|
this["_scrolling"] = false;
|
||
|
|
this["_dispatchEvent"]('scroll-ended');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|