横竖屏方向错位：
move: function (e) {
if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) {
return;
}
if ( this.options.preventDefault ) { // increases performance on Android? TODO: check!
e.preventDefault();
}
var point = e.touches ? e.touches[0] : e,
deltaX = point.pageX - this.pointX,
deltaY = point.pageY - this.pointY,
timestamp = utils.getTime(),
newX, newY,
absDistX, absDistY;
this.pointX = point.pageX;
this.pointY = point.pageY;
this.distX += deltaX;
this.distY += deltaY;
absDistX = Math.abs(this.distX);
absDistY = Math.abs(this.distY);
// We need to move at least 10 pixels for the scrolling to initiate
if ( timestamp - this.endTime > 300 && (absDistX < 10 && absDistY < 10) ) {
return;
}
// If you are scrolling in one direction lock the other
if ( !this.directionLocked && !this.options.freeScroll ) {
if ( absDistX > absDistY + this.options.directionLockThreshold ) {
this.directionLocked = 'h'; // lock horizontally
} else if ( absDistY >= absDistX + this.options.directionLockThreshold ) {
this.directionLocked = 'v'; // lock vertically
} else {
this.directionLocked = 'n'; // no lock
}
}
if ( this.directionLocked == 'h' ) {
if ( this.options.eventPassthrough == 'vertical' ) {
e.preventDefault();
} else if ( this.options.eventPassthrough == 'horizontal' ) {
this.initiated = false;
return;
}
deltaY = 0;
} else if ( this.directionLocked == 'v' ) {
if ( this.options.eventPassthrough == 'horizontal' ) {
e.preventDefault();
} else if ( this.options.eventPassthrough == 'vertical' ) {
this.initiated = false;
return;
}
deltaX = 0;
}
if(this.options.isReverse){
let oldDeltaX = deltaX;
let oldDeltaY = deltaY;
deltaX = this.hasHorizontalScroll ? oldDeltaY : 0;
deltaY = this.hasVerticalScroll ? -oldDeltaX : 0;
}else{
deltaX = this.hasHorizontalScroll ? deltaX : 0;
deltaY = this.hasVerticalScroll ? deltaY : 0;
}
newX = this.x + deltaX;
newY = this.y + deltaY;
// Slow down if outside of the boundaries
if ( newX > 0 || newX < this.maxScrollX ) {
newX = this.options.bounce ? this.x + deltaX / 3 : newX > 0 ? 0 : this.maxScrollX;
}
if ( newY > 0 || newY < this.maxScrollY ) {
newY = this.options.bounce ? this.y + deltaY / 3 : newY > 0 ? 0 : this.maxScrollY;
}
this.directionX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0;
this.directionY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0;
if ( !this.moved ) {
this._execEvent('scrollStart');
}
this.moved = true;
this._translate(newX, newY);
/* REPLACE START: _move */
if ( timestamp - this.startTime > 300 ) {
this.startTime = timestamp;
this.startX = this.x;
this.startY = this.y;
}
/* REPLACE END: _move */
}根据内容自动显示隐藏滚动条：
refresh: function () {
this.transitionTime();
if ( this.options.listenX && !this.options.listenY ) {
// this.indicatorStyle.display = this.scroller.hasHorizontalScroll ? 'block' : 'none';
this.wrapper.style.display = this.scroller.hasHorizontalScroll ? 'block' : 'none';
} else if ( this.options.listenY && !this.options.listenX ) {
// this.indicatorStyle.display = this.scroller.hasVerticalScroll ? 'block' : 'none';
this.wrapper.style.display = this.scroller.hasVerticalScroll ? 'block' : 'none';
} else {
this.wrapper.style.display = this.scroller.hasHorizontalScroll || this.scroller.hasVerticalScroll ? 'block' : 'none';
// this.indicatorStyle.display = this.scroller.hasHorizontalScroll || this.scroller.hasVerticalScroll ? 'block' : 'none';
}
if ( this.scroller.hasHorizontalScroll && this.scroller.hasVerticalScroll ) {
utils.addClass(this.wrapper, 'iScrollBothScrollbars');
utils.removeClass(this.wrapper, 'iScrollLoneScrollbar');
if ( this.options.defaultScrollbars && this.options.customStyle ) {
if ( this.options.listenX ) {
this.wrapper.style.right = '8px';
} else {
this.wrapper.style.bottom = '8px';
}
}
} else {
utils.removeClass(this.wrapper, 'iScrollBothScrollbars');
utils.addClass(this.wrapper, 'iScrollLoneScrollbar');
if ( this.options.defaultScrollbars && this.options.customStyle ) {
if ( this.options.listenX ) {
this.wrapper.style.right = '2px';
} else {
this.wrapper.style.bottom = '2px';
}
}
}
var r = this.wrapper.offsetHeight; // force refresh
if ( this.options.listenX ) {
this.wrapperWidth = this.wrapper.clientWidth;
if ( this.options.resize ) {
this.indicatorWidth = Math.max(Math.round(this.wrapperWidth * this.wrapperWidth / (this.scroller.scrollerWidth || this.wrapperWidth || 1)), 8);
this.indicatorStyle.width = this.indicatorWidth + 'px';
} else {
this.indicatorWidth = this.indicator.clientWidth;
}
this.maxPosX = this.wrapperWidth - this.indicatorWidth;
if ( this.options.shrink == 'clip' ) {
this.minBoundaryX = -this.indicatorWidth + 8;
this.maxBoundaryX = this.wrapperWidth - 8;
} else {
this.minBoundaryX = 0;
this.maxBoundaryX = this.maxPosX;
}
this.sizeRatioX = this.options.speedRatioX || (this.scroller.maxScrollX && (this.maxPosX / this.scroller.maxScrollX));
}
if ( this.options.listenY ) {
this.wrapperHeight = this.wrapper.clientHeight;
if ( this.options.resize ) {
this.indicatorHeight = Math.max(Math.round(this.wrapperHeight * this.wrapperHeight / (this.scroller.scrollerHeight || this.wrapperHeight || 1)), 8);
this.indicatorStyle.height = this.indicatorHeight + 'px';
} else {
this.indicatorHeight = this.indicator.clientHeight;
}
this.maxPosY = this.wrapperHeight - this.indicatorHeight;
if ( this.options.shrink == 'clip' ) {
this.minBoundaryY = -this.indicatorHeight + 8;
this.maxBoundaryY = this.wrapperHeight - 8;
} else {
this.minBoundaryY = 0;
this.maxBoundaryY = this.maxPosY;
}
this.maxPosY = this.wrapperHeight - this.indicatorHeight;
this.sizeRatioY = this.options.speedRatioY || (this.scroller.maxScrollY && (this.maxPosY / this.scroller.maxScrollY));
}
this.updatePosition();
}