@txdfe/at
Version:
一个设计体系组件库
264 lines (262 loc) • 10.9 kB
JavaScript
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { findDOMNode } from 'react-dom';
import { getTrackCSS, getTrackLeft, getTrackAnimateCSS } from './trackHelper';
/* istanbul ignore next */
var EventHandlers = {
// Event handler for previous and next
changeSlide: function changeSlide(options) {
var slideOffset, targetSlide;
var unevenOffset = this.state.slideCount % this.props.slidesToScroll !== 0;
var indexOffset = unevenOffset ? 0 : (this.state.slideCount - this.state.currentSlide) % this.props.slidesToScroll;
if (options.message === 'previous') {
slideOffset = indexOffset === 0 ? this.props.slidesToScroll : this.props.slidesToShow - indexOffset;
targetSlide = this.state.currentSlide - slideOffset;
} else if (options.message === 'next') {
slideOffset = indexOffset === 0 ? this.props.slidesToScroll : indexOffset;
targetSlide = this.state.currentSlide + slideOffset;
} else if (options.message === 'dots' || options.message === 'children') {
// Click on dots
targetSlide = options.index * options.slidesToScroll;
if (targetSlide === options.currentSlide) {
return;
}
} else if (options.message === 'index') {
targetSlide = options.index;
if (targetSlide === options.currentSlide) {
return;
}
}
this.slideHandler(targetSlide);
},
// Accessiblity handler for previous and next
keyHandler: function keyHandler(e) {
//Dont slide if the cursor is inside the form fields and arrow keys are pressed
if (!e.target.tagName.match('TEXTAREA|INPUT|SELECT')) {
if (e.keyCode === 37 && this.props.accessibility === true) {
this.changeSlide({
message: this.props.rtl === true ? 'next' : 'previous'
});
} else if (e.keyCode === 39 && this.props.accessibility === true) {
this.changeSlide({
message: this.props.rtl === true ? 'previous' : 'next'
});
}
}
},
// Focus on selecting a slide (click handler on track)
selectHandler: function selectHandler(options) {
this.changeSlide(options);
},
swipeStart: function swipeStart(e) {
if (this.props.swipe === false || 'ontouchend' in document && this.props.swipe === false) {
return;
} else if (this.props.draggable === false && e.type.indexOf('mouse') !== -1) {
return;
}
var posX = e.touches !== undefined ? e.touches[0].pageX : e.clientX;
var posY = e.touches !== undefined ? e.touches[0].pageY : e.clientY;
this.setState({
dragging: true,
touchObject: {
startX: posX,
startY: posY,
curX: posX,
curY: posY
}
});
},
swipeMove: function swipeMove(e) {
if (!this.state.dragging) {
return;
}
if (this.state.animating) {
return;
}
var touchObject = this.state.touchObject;
var curLeft = getTrackLeft(_objectSpread(_objectSpread({
slideIndex: this.state.currentSlide,
trackRef: this.refs.track
}, this.props), this.state));
touchObject.curX = e.touches ? e.touches[0].pageX : e.clientX;
touchObject.curY = e.touches ? e.touches[0].pageY : e.clientY;
touchObject.swipeLength = Math.round(Math.sqrt(Math.pow(touchObject.curX - touchObject.startX, 2)));
var positionOffset = (this.props.rtl === false ? 1 : -1) * (touchObject.curX > touchObject.startX ? 1 : -1);
if (this.props.verticalSwiping === true) {
touchObject.swipeLength = Math.round(Math.sqrt(Math.pow(touchObject.curY - touchObject.startY, 2)));
positionOffset = touchObject.curY > touchObject.startY ? 1 : -1;
}
var currentSlide = this.state.currentSlide;
var dotCount = Math.ceil(this.state.slideCount / this.props.slidesToScroll);
var swipeDirection = this.swipeDirection(this.state.touchObject);
var touchSwipeLength = touchObject.swipeLength;
if (this.props.infinite === false) {
if (currentSlide === 0 && swipeDirection === 'right' || currentSlide + 1 >= dotCount && swipeDirection === 'left') {
touchSwipeLength = touchObject.swipeLength * this.props.edgeFriction;
if (this.state.edgeDragged === false && this.props.edgeEvent) {
this.props.edgeEvent(swipeDirection);
this.setState({
edgeDragged: true
});
}
}
}
if (this.state.swiped === false && this.props.swipeEvent) {
this.props.swipeEvent(swipeDirection);
this.setState({
swiped: true
});
}
var swipeLeft = curLeft + touchSwipeLength * positionOffset;
this.setState({
touchObject: touchObject,
swipeLeft: swipeLeft,
trackStyle: getTrackCSS(_objectSpread(_objectSpread({
left: swipeLeft
}, this.props), this.state))
});
if (Math.abs(touchObject.curX - touchObject.startX) < Math.abs(touchObject.curY - touchObject.startY) * 0.8) {
return;
}
if (touchObject.swipeLength > 4) {
e.preventDefault();
}
},
getNavigableIndexes: function getNavigableIndexes() {
var max;
var breakPoint = 0;
var counter = 0;
var indexes = [];
if (!this.props.infinite) {
max = this.state.slideCount;
} else {
breakPoint = this.props.slidesToShow * -1;
counter = this.props.slidesToShow * -1;
max = this.state.slideCount * 2;
}
while (breakPoint < max) {
indexes.push(breakPoint);
breakPoint = counter + this.props.slidesToScroll;
counter += this.props.slidesToScroll <= this.props.slidesToShow ? this.props.slidesToScroll : this.props.slidesToShow;
}
return indexes;
},
checkNavigable: function checkNavigable(index) {
var navigables = this.getNavigableIndexes();
var prevNavigable = 0;
if (index > navigables[navigables.length - 1]) {
index = navigables[navigables.length - 1];
} else {
for (var n in navigables) {
if (index < navigables[n]) {
index = prevNavigable;
break;
}
prevNavigable = navigables[n];
}
}
return index;
},
getSlideCount: function getSlideCount() {
var _this = this;
var centerOffset = this.props.centerMode ? this.state.slideWidth * Math.floor(this.props.slidesToShow / 2) : 0;
if (this.props.swipeToSlide) {
var swipedSlide;
var slickList = findDOMNode(this.list);
var slides = slickList.querySelectorAll("".concat(this.props.prefix, "slick-slide"));
Array.from(slides).every(function (slide) {
if (!_this.props.vertical) {
if (slide.offsetLeft - centerOffset + _this.getWidth(slide) / 2 > _this.state.swipeLeft * -1) {
swipedSlide = slide;
return false;
}
} else if (slide.offsetTop + _this.getHeight(slide) / 2 > _this.state.swipeLeft * -1) {
swipedSlide = slide;
return false;
}
return true;
});
var slidesTraversed = Math.abs(swipedSlide.dataset.index - this.state.currentSlide) || 1;
return slidesTraversed;
} else {
return this.props.slidesToScroll;
}
},
swipeEnd: function swipeEnd(e) {
if (!this.state.dragging) {
if (this.props.swipe) {
e.preventDefault();
}
return;
}
var touchObject = this.state.touchObject;
var minSwipe = this.state.listWidth / this.props.touchThreshold;
var swipeDirection = this.swipeDirection(touchObject);
if (this.props.verticalSwiping) {
minSwipe = this.state.listHeight / this.props.touchThreshold;
}
// reset the state of touch related state variables.
this.setState({
dragging: false,
edgeDragged: false,
swiped: false,
swipeLeft: null,
touchObject: {}
});
if (!touchObject.swipeLength) {
return;
}
if (touchObject.swipeLength > minSwipe) {
e.preventDefault();
var slideCount;
var newSlide;
switch (swipeDirection) {
case 'left':
case 'down':
newSlide = this.state.currentSlide + this.getSlideCount();
slideCount = this.props.swipeToSlide ? this.checkNavigable(newSlide) : newSlide;
this.setState({
currentDirection: 0
});
break;
case 'right':
case 'up':
newSlide = this.state.currentSlide - this.getSlideCount();
slideCount = this.props.swipeToSlide ? this.checkNavigable(newSlide) : newSlide;
this.setState({
currentDirection: 1
});
break;
default:
slideCount = this.state.currentSlide;
}
this.slideHandler(slideCount);
} else {
// Adjust the track back to it's original position.
var currentLeft = getTrackLeft(_objectSpread(_objectSpread({
slideIndex: this.state.currentSlide,
trackRef: this.track
}, this.props), this.state));
this.setState({
trackStyle: getTrackAnimateCSS(_objectSpread(_objectSpread({
left: currentLeft
}, this.props), this.state))
});
}
},
onInnerSliderEnter: function onInnerSliderEnter() {
if (this.props.autoplay && this.props.pauseOnHover) {
this.pause();
}
},
onInnerSliderLeave: function onInnerSliderLeave() {
if (this.props.autoplay && this.props.pauseOnHover) {
this.autoPlay();
}
}
};
export default EventHandlers;