iosselect
Version:
iosselect for andriod and ios
1,469 lines (1,230 loc) • 72 kB
JavaScript
/**
* IosSelect
* @param {number} level 选择的层级 1 2 3 4 5 最多支持5层
* @param {...Array} data [oneLevelArray[, twoLevelArray[, threeLevelArray]]]
* @param {Object} options
* @param {string=} options.container 组件插入到该元素下 可选
* @param {Function} options.callback 选择完毕后的回调函数
* @param {Function} options.fallback 选择取消后的回调函数
* @param {string=} options.title 选择框title
* @param {number=} options.itemHeight 每一项的高度，默认 35
* @param {number=} options.itemShowCount 组件展示的项数，默认 7，可选3,5,7,9，不过不是3,5,7,9则展示7项
* @param {number=} options.headerHeight 组件标题栏高度 默认 44
* @param {css=} options.cssUnit px或者rem 默认是px
* @param {string=} options.addClassName 组件额外类名 用于自定义样式
* @param {...Array=} options.relation 数组 [oneTwoRelation, twoThreeRelation, threeFourRelation, fourFiveRelation] 默认值：[0, 0, 0, 0]
* @param {number=} options.relation.oneTwoRelation 第一列和第二列是否通过parentId关联
* @param {number=} options.relation.twoThreeRelation 第二列和第三列是否通过parentId关联
* @param {number=} options.relation.threeFourRelation 第三列和第四列是否通过parentId关联
* @param {number=} options.relation.fourFiveRelation 第四列和第五列是否通过parentId关联
* @param {string=} options.oneLevelId 第一级选中id
* @param {string=} options.twoLevelId 第二级选中id
* @param {string=} options.threeLevelId 第三级选中id
* @param {string=} options.fourLevelId 第四级选中id
* @param {string=} options.fiveLevelId 第五级选中id
* @param {boolean=} options.showLoading 如果你的数据是异步加载的，可以使用该参数设置为true，下拉菜单会有加载中的效果
* @param {boolean=} options.showAnimate 是否需要入场动画和退场动画，如需自定义动画效果，请修改css
*/
(function() {
/* modify by zhoushengmufc,based on iScroll v5.2.0 */
var rAF = window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function (callback) { window.setTimeout(callback, 1000 / 60); };
var utils = (function () {
var me = {};
var _elementStyle = document.createElement('div').style;
var _vendor = (function () {
var vendors = ['t', 'webkitT', 'MozT', 'msT', 'OT'],
transform,
i = 0,
l = vendors.length;
for ( ; i < l; i++ ) {
transform = vendors[i] + 'ransform';
if ( transform in _elementStyle ) return vendors[i].substr(0, vendors[i].length-1);
}
return false;
})();
function _prefixStyle (style) {
if ( _vendor === false ) return false;
if ( _vendor === '' ) return style;
return _vendor + style.charAt(0).toUpperCase() + style.substr(1);
}
me.getTime = Date.now || function getTime () { return new Date().getTime(); };
me.extend = function (target, obj) {
for ( var i in obj ) {
target[i] = obj[i];
}
};
me.addEvent = function (el, type, fn, capture) {
el.addEventListener(type, fn, !!capture);
};
me.removeEvent = function (el, type, fn, capture) {
el.removeEventListener(type, fn, !!capture);
};
me.prefixPointerEvent = function (pointerEvent) {
return window.MSPointerEvent ?
'MSPointer' + pointerEvent.charAt(7).toUpperCase() + pointerEvent.substr(8):
pointerEvent;
};
me.momentum = function (current, start, time, lowerMargin, wrapperSize, deceleration) {
var distance = current - start,
speed = Math.abs(distance) / time,
destination,
duration;
deceleration = deceleration === undefined ? 0.0006 : deceleration;
destination = current + ( speed * speed ) / ( 2 * deceleration ) * ( distance < 0 ? -1 : 1 );
duration = speed / deceleration;
if ( destination < lowerMargin ) {
destination = wrapperSize ? lowerMargin - ( wrapperSize / 2.5 * ( speed / 8 ) ) : lowerMargin;
distance = Math.abs(destination - current);
duration = distance / speed;
} else if ( destination > 0 ) {
destination = wrapperSize ? wrapperSize / 2.5 * ( speed / 8 ) : 0;
distance = Math.abs(current) + destination;
duration = distance / speed;
}
return {
destination: Math.round(destination),
duration: duration
};
};
var _transform = _prefixStyle('transform');
me.extend(me, {
hasTransform: _transform !== false,
hasPerspective: _prefixStyle('perspective') in _elementStyle,
hasTouch: 'ontouchstart' in window,
hasPointer: !!(window.PointerEvent || window.MSPointerEvent), // IE10 is prefixed
hasTransition: _prefixStyle('transition') in _elementStyle
});
/*
This should find all Android browsers lower than build 535.19 (both stock browser and webview)
- galaxy S2 is ok
- 2.3.6 : `AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1`
- 4.0.4 : `AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30`
- galaxy S3 is badAndroid (stock brower, webview)
`AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30`
- galaxy S4 is badAndroid (stock brower, webview)
`AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30`
- galaxy S5 is OK
`AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Mobile Safari/537.36 (Chrome/)`
- galaxy S6 is OK
`AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Mobile Safari/537.36 (Chrome/)`
*/
me.isBadAndroid = (function() {
var appVersion = window.navigator.appVersion;
// Android browser is not a chrome browser.
if (/Android/.test(appVersion) && !(/Chrome\/\d/.test(appVersion))) {
var safariVersion = appVersion.match(/Safari\/(\d+.\d)/);
if(safariVersion && typeof safariVersion === "object" && safariVersion.length >= 2) {
return parseFloat(safariVersion[1]) < 535.19;
} else {
return true;
}
} else {
return false;
}
})();
me.extend(me.style = {}, {
transform: _transform,
transitionTimingFunction: _prefixStyle('transitionTimingFunction'),
transitionDuration: _prefixStyle('transitionDuration'),
transitionDelay: _prefixStyle('transitionDelay'),
transformOrigin: _prefixStyle('transformOrigin')
});
me.hasClass = function (e, c) {
var re = new RegExp("(^|\\s)" + c + "(\\s|$)");
return re.test(e.className);
};
me.addClass = function (e, c) {
if ( me.hasClass(e, c) ) {
return;
}
var newclass = e.className.split(' ');
newclass.push(c);
e.className = newclass.join(' ');
};
me.removeClass = function (e, c) {
if ( !me.hasClass(e, c) ) {
return;
}
var re = new RegExp("(^|\\s)" + c + "(\\s|$)", 'g');
e.className = e.className.replace(re, ' ');
};
me.offset = function (el) {
var left = -el.offsetLeft,
top = -el.offsetTop;
// jshint -W084
while (el = el.offsetParent) {
left -= el.offsetLeft;
top -= el.offsetTop;
}
// jshint +W084
return {
left: left,
top: top
};
};
me.preventDefaultException = function (el, exceptions) {
for ( var i in exceptions ) {
if ( exceptions[i].test(el[i]) ) {
return true;
}
}
return false;
};
me.extend(me.eventType = {}, {
touchstart: 1,
touchmove: 1,
touchend: 1,
mousedown: 2,
mousemove: 2,
mouseup: 2,
pointerdown: 3,
pointermove: 3,
pointerup: 3,
MSPointerDown: 3,
MSPointerMove: 3,
MSPointerUp: 3
});
me.extend(me.ease = {}, {
quadratic: {
style: 'cubic-bezier(0.25, 0.46, 0.45, 0.94)',
fn: function (k) {
return k * ( 2 - k );
}
},
circular: {
style: 'cubic-bezier(0.1, 0.57, 0.1, 1)', // Not properly "circular" but this looks better, it should be (0.075, 0.82, 0.165, 1)
fn: function (k) {
return Math.sqrt( 1 - ( --k * k ) );
}
},
back: {
style: 'cubic-bezier(0.175, 0.885, 0.32, 1.275)',
fn: function (k) {
var b = 4;
return ( k = k - 1 ) * k * ( ( b + 1 ) * k + b ) + 1;
}
},
bounce: {
style: '',
fn: function (k) {
if ( ( k /= 1 ) < ( 1 / 2.75 ) ) {
return 7.5625 * k * k;
} else if ( k < ( 2 / 2.75 ) ) {
return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75;
} else if ( k < ( 2.5 / 2.75 ) ) {
return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375;
} else {
return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375;
}
}
},
elastic: {
style: '',
fn: function (k) {
var f = 0.22,
e = 0.4;
if ( k === 0 ) { return 0; }
if ( k == 1 ) { return 1; }
return ( e * Math.pow( 2, - 10 * k ) * Math.sin( ( k - f / 4 ) * ( 2 * Math.PI ) / f ) + 1 );
}
}
});
me.tap = function (e, eventName) {
var ev = document.createEvent('Event');
ev.initEvent(eventName, true, true);
ev.pageX = e.pageX;
ev.pageY = e.pageY;
e.target.dispatchEvent(ev);
};
me.click = function (e) {
var target = e.target,
ev;
if ( !(/(SELECT|INPUT|TEXTAREA)/i).test(target.tagName) ) {
// https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/initMouseEvent
// initMouseEvent is deprecated.
ev = document.createEvent(window.MouseEvent ? 'MouseEvents' : 'Event');
ev.initEvent('click', true, true);
ev.view = e.view || window;
ev.detail = 1;
ev.screenX = target.screenX || 0;
ev.screenY = target.screenY || 0;
ev.clientX = target.clientX || 0;
ev.clientY = target.clientY || 0;
ev.ctrlKey = !!e.ctrlKey;
ev.altKey = !!e.altKey;
ev.shiftKey = !!e.shiftKey;
ev.metaKey = !!e.metaKey;
ev.button = 0;
ev.relatedTarget = null;
ev._constructed = true;
target.dispatchEvent(ev);
}
};
return me;
})();
function IScrollForIosSelect (el, options) {
this.wrapper = typeof el == 'string' ? document.querySelector(el) : el;
this.scroller = this.wrapper.children[0];
this.scrollerStyle = this.scroller.style; // cache style for better performance
this.options = {
// INSERT POINT: OPTIONS
disablePointer: true,
disableTouch: !utils.hasTouch,
disableMouse: utils.hasTouch,
startX: 0,
startY: 0,
scrollY: true,
directionLockThreshold: 5,
momentum: true,
bounce: true,
bounceTime: 600,
bounceEasing: '',
preventDefault: true,
preventDefaultException: { tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT)$/ },
HWCompositing: true,
useTransition: true,
useTransform: true,
bindToWrapper: typeof window.onmousedown === "undefined"
};
for ( var i in options ) {
this.options[i] = options[i];
}
// Normalize options
this.translateZ = this.options.HWCompositing && utils.hasPerspective ? ' translateZ(0)' : '';
this.options.useTransition = utils.hasTransition && this.options.useTransition;
this.options.useTransform = utils.hasTransform && this.options.useTransform;
this.options.eventPassthrough = this.options.eventPassthrough === true ? 'vertical' : this.options.eventPassthrough;
this.options.preventDefault = !this.options.eventPassthrough && this.options.preventDefault;
// If you want eventPassthrough I have to lock one of the axes
this.options.scrollY = this.options.eventPassthrough == 'vertical' ? false : this.options.scrollY;
this.options.scrollX = this.options.eventPassthrough == 'horizontal' ? false : this.options.scrollX;
// With eventPassthrough we also need lockDirection mechanism
this.options.freeScroll = this.options.freeScroll && !this.options.eventPassthrough;
this.options.directionLockThreshold = this.options.eventPassthrough ? 0 : this.options.directionLockThreshold;
this.options.bounceEasing = typeof this.options.bounceEasing == 'string' ? utils.ease[this.options.bounceEasing] || utils.ease.circular : this.options.bounceEasing;
this.options.resizePolling = this.options.resizePolling === undefined ? 60 : this.options.resizePolling;
if ( this.options.tap === true ) {
this.options.tap = 'tap';
}
// https://github.com/cubiq/iscrollForIosSelect/issues/1029
if (!this.options.useTransition && !this.options.useTransform) {
if(!(/relative|absolute/i).test(this.scrollerStyle.position)) {
this.scrollerStyle.position = "relative";
}
}
if ( this.options.shrinkScrollbars == 'scale' ) {
this.options.useTransition = false;
}
this.options.invertWheelDirection = this.options.invertWheelDirection ? -1 : 1;
if ( this.options.probeType == 3 ) {
this.options.useTransition = false; }
// INSERT POINT: NORMALIZATION
// Some defaults
this.x = 0;
this.y = 0;
this.directionX = 0;
this.directionY = 0;
this._events = {};
// INSERT POINT: DEFAULTS
this._init();
this.refresh();
this.scrollTo(this.options.startX, this.options.startY);
this.enable();
}
IScrollForIosSelect.prototype = {
version: '1.0.0',
_init: function () {
this._initEvents();
// INSERT POINT: _init
},
destroy: function () {
this._initEvents(true);
clearTimeout(this.resizeTimeout);
this.resizeTimeout = null;
this._execEvent('destroy');
},
_transitionEnd: function (e) {
if ( e.target != this.scroller || !this.isInTransition ) {
return;
}
this._transitionTime();
if ( !this.resetPosition(this.options.bounceTime) ) {
this.isInTransition = false;
this._execEvent('scrollEnd');
}
},
_start: function (e) {
// React to left mouse button only
if ( utils.eventType[e.type] != 1 ) {
// for button property
// http://unixpapa.com/js/mouse.html
var button;
if (!e.which) {
/* IE case */
button = (e.button < 2) ? 0 :
((e.button == 4) ? 1 : 2);
} else {
/* All others */
button = e.button;
}
if ( button !== 0 ) {
return;
}
}
if ( !this.enabled || (this.initiated && utils.eventType[e.type] !== this.initiated) ) {
return;
}
if ( this.options.preventDefault && !utils.isBadAndroid && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) {
e.preventDefault();
}
var point = e.touches ? e.touches[0] : e,
pos;
this.initiated = utils.eventType[e.type];
this.moved = false;
this.distX = 0;
this.distY = 0;
this.directionX = 0;
this.directionY = 0;
this.directionLocked = 0;
this.startTime = utils.getTime();
if ( this.options.useTransition && this.isInTransition ) {
this._transitionTime();
this.isInTransition = false;
pos = this.getComputedPosition();
this._translate(Math.round(pos.x), Math.round(pos.y));
this._execEvent('scrollEnd');
} else if ( !this.options.useTransition && this.isAnimating ) {
this.isAnimating = false;
this._execEvent('scrollEnd');
}
this.startX = this.x;
this.startY = this.y;
this.absStartX = this.x;
this.absStartY = this.y;
this.pointX = point.pageX;
this.pointY = point.pageY;
this._execEvent('beforeScrollStart');
},
_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;
}
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;
if ( this.options.probeType == 1 ) {
this._execEvent('scroll');
}
}
if ( this.options.probeType > 1 ) {
this._execEvent('scroll');
}
/* REPLACE END: _move */
},
_end: function (e) {
if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) {
return;
}
if ( this.options.preventDefault && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) {
e.preventDefault();
}
var point = e.changedTouches ? e.changedTouches[0] : e,
momentumX,
momentumY,
duration = utils.getTime() - this.startTime,
newX = Math.round(this.x),
newY = Math.round(this.y),
distanceX = Math.abs(newX - this.startX),
distanceY = Math.abs(newY - this.startY),
time = 0,
easing = '';
this.isInTransition = 0;
this.initiated = 0;
this.endTime = utils.getTime();
// reset if we are outside of the boundaries
if ( this.resetPosition(this.options.bounceTime) ) {
return;
}
this.scrollTo(newX, newY); // ensures that the last position is rounded
// we scrolled less than 10 pixels
if ( !this.moved ) {
if ( this.options.tap ) {
utils.tap(e, this.options.tap);
}
if ( this.options.click ) {
utils.click(e);
}
this._execEvent('scrollCancel');
return;
}
if ( this._events.flick && duration < 200 && distanceX < 100 && distanceY < 100 ) {
this._execEvent('flick');
return;
}
// start momentum animation if needed
if ( this.options.momentum && duration < 300 ) {
momentumX = this.hasHorizontalScroll ? utils.momentum(this.x, this.startX, duration, this.maxScrollX, this.options.bounce ? this.wrapperWidth : 0, this.options.deceleration) : { destination: newX, duration: 0 };
momentumY = this.hasVerticalScroll ? utils.momentum(this.y, this.startY, duration, this.maxScrollY, this.options.bounce ? this.wrapperHeight : 0, this.options.deceleration) : { destination: newY, duration: 0 };
newX = momentumX.destination;
newY = momentumY.destination;
time = Math.max(momentumX.duration, momentumY.duration);
this.isInTransition = 1;
}
if ( this.options.snap ) {
var snap = this._nearestSnap(newX, newY);
this.currentPage = snap;
time = this.options.snapSpeed || Math.max(
Math.max(
Math.min(Math.abs(newX - snap.x), 1000),
Math.min(Math.abs(newY - snap.y), 1000)
), 300);
newX = snap.x;
newY = snap.y;
this.directionX = 0;
this.directionY = 0;
easing = this.options.bounceEasing;
}
// INSERT POINT: _end
if ( newX != this.x || newY != this.y ) {
// change easing function when scroller goes out of the boundaries
if ( newX > 0 || newX < this.maxScrollX || newY > 0 || newY < this.maxScrollY ) {
easing = utils.ease.quadratic;
}
this.scrollTo(newX, newY, time, easing);
return;
}
this._execEvent('scrollEnd');
},
_resize: function () {
var that = this;
clearTimeout(this.resizeTimeout);
this.resizeTimeout = setTimeout(function () {
that.refresh();
}, this.options.resizePolling);
},
resetPosition: function (time) {
var x = this.x,
y = this.y;
time = time || 0;
if ( !this.hasHorizontalScroll || this.x > 0 ) {
x = 0;
} else if ( this.x < this.maxScrollX ) {
x = this.maxScrollX;
}
if ( !this.hasVerticalScroll || this.y > 0 ) {
y = 0;
} else if ( this.y < this.maxScrollY ) {
y = this.maxScrollY;
}
if ( x == this.x && y == this.y ) {
return false;
}
this.scrollTo(x, y, time, this.options.bounceEasing);
return true;
},
disable: function () {
this.enabled = false;
},
enable: function () {
this.enabled = true;
},
refresh: function () {
var rf = this.wrapper.offsetHeight; // Force reflow
this.wrapperWidth = this.wrapper.clientWidth;
this.wrapperHeight = this.wrapper.clientHeight;
/* REPLACE START: refresh */
this.scrollerWidth = this.scroller.offsetWidth;
this.scrollerHeight = this.scroller.offsetHeight;
this.maxScrollX = this.wrapperWidth - this.scrollerWidth;
this.maxScrollY = this.wrapperHeight - this.scrollerHeight;
/* REPLACE END: refresh */
this.hasHorizontalScroll = this.options.scrollX && this.maxScrollX < 0;
this.hasVerticalScroll = this.options.scrollY && this.maxScrollY < 0;
if ( !this.hasHorizontalScroll ) {
this.maxScrollX = 0;
this.scrollerWidth = this.wrapperWidth;
}
if ( !this.hasVerticalScroll ) {
this.maxScrollY = 0;
this.scrollerHeight = this.wrapperHeight;
}
this.endTime = 0;
this.directionX = 0;
this.directionY = 0;
this.wrapperOffset = utils.offset(this.wrapper);
this._execEvent('refresh');
this.resetPosition();
// INSERT POINT: _refresh
},
on: function (type, fn) {
if ( !this._events[type] ) {
this._events[type] = [];
}
this._events[type].push(fn);
},
off: function (type, fn) {
if ( !this._events[type] ) {
return;
}
var index = this._events[type].indexOf(fn);
if ( index > -1 ) {
this._events[type].splice(index, 1);
}
},
_execEvent: function (type) {
if ( !this._events[type] ) {
return;
}
var i = 0,
l = this._events[type].length;
if ( !l ) {
return;
}
for ( ; i < l; i++ ) {
this._events[type][i].apply(this, [].slice.call(arguments, 1));
}
},
scrollTo: function (x, y, time, easing) {
easing = easing || utils.ease.circular;
this.isInTransition = this.options.useTransition && time > 0;
var transitionType = this.options.useTransition && easing.style;
if ( !time || transitionType ) {
if(transitionType) {
this._transitionTimingFunction(easing.style);
this._transitionTime(time);
}
this._translate(x, y);
} else {
this._animate(x, y, time, easing.fn);
}
},
scrollToElement: function (el, time, offsetX, offsetY, easing) {
el = el.nodeType ? el : this.scroller.querySelector(el);
if ( !el ) {
return;
}
var pos = utils.offset(el);
pos.left -= this.wrapperOffset.left;
pos.top -= this.wrapperOffset.top;
// if offsetX/Y are true we center the element to the screen
if ( offsetX === true ) {
offsetX = Math.round(el.offsetWidth / 2 - this.wrapper.offsetWidth / 2);
}
if ( offsetY === true ) {
offsetY = Math.round(el.offsetHeight / 2 - this.wrapper.offsetHeight / 2);
}
pos.left -= offsetX || 0;
pos.top -= offsetY || 0;
pos.left = pos.left > 0 ? 0 : pos.left < this.maxScrollX ? this.maxScrollX : pos.left;
pos.top = pos.top > 0 ? 0 : pos.top < this.maxScrollY ? this.maxScrollY : pos.top;
time = time === undefined || time === null || time === 'auto' ? Math.max(Math.abs(this.x-pos.left), Math.abs(this.y-pos.top)) : time;
this.scrollTo(pos.left, pos.top, time, easing);
},
_transitionTime: function (time) {
if (!this.options.useTransition) {
return;
}
time = time || 0;
var durationProp = utils.style.transitionDuration;
if(!durationProp) {
return;
}
this.scrollerStyle[durationProp] = time + 'ms';
if ( !time && utils.isBadAndroid ) {
this.scrollerStyle[durationProp] = '0.0001ms';
// remove 0.0001ms
var self = this;
rAF(function() {
if(self.scrollerStyle[durationProp] === '0.0001ms') {
self.scrollerStyle[durationProp] = '0s';
}
});
}
// INSERT POINT: _transitionTime
},
_transitionTimingFunction: function (easing) {
this.scrollerStyle[utils.style.transitionTimingFunction] = easing;
// INSERT POINT: _transitionTimingFunction
},
_translate: function (x, y) {
if ( this.options.useTransform ) {
/* REPLACE START: _translate */
this.scrollerStyle[utils.style.transform] = 'translate(' + x + 'px,' + y + 'px)' + this.translateZ;
/* REPLACE END: _translate */
} else {
x = Math.round(x);
y = Math.round(y);
this.scrollerStyle.left = x + 'px';
this.scrollerStyle.top = y + 'px';
}
this.x = x;
this.y = y;
// INSERT POINT: _translate
},
_initEvents: function (remove) {
var eventType = remove ? utils.removeEvent : utils.addEvent,
target = this.options.bindToWrapper ? this.wrapper : window;
eventType(window, 'orientationchange', this);
eventType(window, 'resize', this);
if ( this.options.click ) {
eventType(this.wrapper, 'click', this, true);
}
if ( !this.options.disableMouse ) {
eventType(this.wrapper, 'mousedown', this);
eventType(target, 'mousemove', this);
eventType(target, 'mousecancel', this);
eventType(target, 'mouseup', this);
}
if ( utils.hasPointer && !this.options.disablePointer ) {
eventType(this.wrapper, utils.prefixPointerEvent('pointerdown'), this);
eventType(target, utils.prefixPointerEvent('pointermove'), this);
eventType(target, utils.prefixPointerEvent('pointercancel'), this);
eventType(target, utils.prefixPointerEvent('pointerup'), this);
}
if ( utils.hasTouch && !this.options.disableTouch ) {
eventType(this.wrapper, 'touchstart', this);
eventType(target, 'touchmove', this);
eventType(target, 'touchcancel', this);
eventType(target, 'touchend', this);
}
eventType(this.scroller, 'transitionend', this);
eventType(this.scroller, 'webkitTransitionEnd', this);
eventType(this.scroller, 'oTransitionEnd', this);
eventType(this.scroller, 'MSTransitionEnd', this);
},
getComputedPosition: function () {
var matrix = window.getComputedStyle(this.scroller, null),
x, y;
if ( this.options.useTransform ) {
matrix = matrix[utils.style.transform].split(')')[0].split(', ');
x = +(matrix[12] || matrix[4]);
y = +(matrix[13] || matrix[5]);
} else {
x = +matrix.left.replace(/[^-\d.]/g, '');
y = +matrix.top.replace(/[^-\d.]/g, '');
}
return { x: x, y: y };
},
_animate: function (destX, destY, duration, easingFn) {
var that = this,
startX = this.x,
startY = this.y,
startTime = utils.getTime(),
destTime = startTime + duration;
function step () {
var now = utils.getTime(),
newX, newY,
easing;
if ( now >= destTime ) {
that.isAnimating = false;
that._translate(destX, destY);
if ( !that.resetPosition(that.options.bounceTime) ) {
that._execEvent('scrollEnd');
}
return;
}
now = ( now - startTime ) / duration;
easing = easingFn(now);
newX = ( destX - startX ) * easing + startX;
newY = ( destY - startY ) * easing + startY;
that._translate(newX, newY);
if ( that.isAnimating ) {
rAF(step);
}
if ( that.options.probeType == 3 ) {
that._execEvent('scroll');
}
}
this.isAnimating = true;
step();
},
handleEvent: function (e) {
switch ( e.type ) {
case 'touchstart':
case 'pointerdown':
case 'MSPointerDown':
case 'mousedown':
this._start(e);
break;
case 'touchmove':
case 'pointermove':
case 'MSPointerMove':
case 'mousemove':
this._move(e);
break;
case 'touchend':
case 'pointerup':
case 'MSPointerUp':
case 'mouseup':
case 'touchcancel':
case 'pointercancel':
case 'MSPointerCancel':
case 'mousecancel':
this._end(e);
break;
case 'orientationchange':
case 'resize':
this._resize();
break;
case 'transitionend':
case 'webkitTransitionEnd':
case 'oTransitionEnd':
case 'MSTransitionEnd':
this._transitionEnd(e);
break;
case 'click':
if ( this.enabled && !e._constructed ) {
e.preventDefault();
e.stopPropagation();
}
break;
}
}
};
IScrollForIosSelect.utils = utils;
var iosSelectUtil = {
isArray: function(arg1) {
return Object.prototype.toString.call(arg1) === '[object Array]';
},
isFunction: function(arg1) {
return typeof arg1 === 'function';
},
attrToData: function(dom, index) {
var obj = {};
for (var p in dom.dataset) {
obj[p] = dom.dataset[p];
}
obj['dom'] = dom;
obj['atindex'] = index;
return obj;
},
attrToHtml: function(obj) {
var html = '';
for (var p in obj) {
html += 'data-' + p + '="' + obj[p] + '"';
}
return html;
}
};
// Layer
function Layer(html, opts) {
if (!(this instanceof Layer)) {
return new Layer(html, opts);
}
this.html = html;
this.opts = opts;
var el = document.createElement('div');
el.className = 'olay';
// var layer_el = $('<div class="layer"></div>');
var layer_el = document.createElement('div');
layer_el.className = 'layer';
this.el = el;
this.layer_el = layer_el;
this.init();
}
Layer.prototype = {
init: function() {
this.layer_el.innerHTML = this.html;
if (this.opts.container && document.querySelector(this.opts.container)) {
document.querySelector(this.opts.container).appendChild(this.el);
}
else {
document.body.appendChild(this.el);
}
this.el.appendChild(this.layer_el);
this.el.style.height = Math.max(document.documentElement.getBoundingClientRect().height, window.innerHeight);
if (this.opts.className) {
this.el.className += ' ' + this.opts.className;
}
this.bindEvent();
},
bindEvent: function() {
var sureDom = this.el.querySelectorAll('.sure');
var closeDom = this.el.querySelectorAll('.close');
var self = this;
this.el.addEventListener('click', function(e) {
self.close();
self.opts.fallback && self.opts.fallback();
});
this.layer_el.addEventListener('click', function(e) {
e.stopPropagation();
});
for (var i = 0, len = sureDom.length; i < len; i++) {
sureDom[i].addEventListener('click', function(e) {
self.close();
});
}
for (var i = 0, len = closeDom.length; i < len; i++) {
closeDom[i].addEventListener('click', function(e) {
self.close();
self.opts.fallback && self.opts.fallback();
});
}
},
close: function() {
var self=this;
if (self.el) {
if (self.opts.showAnimate) {
self.el.className += ' fadeOutDown';
setTimeout(function(){
self.removeDom();
},500);
}else{
self.removeDom();
}
}
},
removeDom:function(){
this.el.parentNode.removeChild(this.el);
this.el=null;
if (document.body.classList.contains('ios-select-body-class')) {
document.body.classList.remove('ios-select-body-class');
}
document.body.style.top ="";
if (this.opts.offsetTop) {
window.scrollTo(0,this.opts.offsetTop);
}
}
}
function IosSelect(level, data, options) {
if (!iosSelectUtil.isArray(data) || data.length === 0) {
return;
}
this.data = data;
this.level = level || 1;
this.options = options;
this.typeBox = 'one-level-box';
if (this.level === 1) {
this.typeBox = 'one-level-box';
}
else if (this.level === 2) {
this.typeBox = 'two-level-box';
}
else if (this.level === 3) {
this.typeBox = 'three-level-box';
}
else if (this.level === 4) {
this.typeBox = 'four-level-box';
}
else if (this.level === 5) {
this.typeBox = 'five-level-box';
}
this.callback = options.callback;
this.fallback = options.fallback;
this.title = options.title || '';
this.options.itemHeight = options.itemHeight || 35;
this.options.itemShowCount = [3, 5, 7, 9].indexOf(options.itemShowCount) !== -1? options.itemShowCount: 7;
this.options.coverArea1Top = Math.floor(this.options.itemShowCount / 2);
this.options.coverArea2Top = Math.ceil(this.options.itemShowCount / 2);
this.options.headerHeight = options.headerHeight || 44;
this.options.relation = iosSelectUtil.isArray(this.options.relation)? this.options.relation: [];
this.options.oneTwoRelation = this.options.relation[0];
this.options.twoThreeRelation = this.options.relation[1];
this.options.threeFourRelation = this.options.relation[2];
this.options.fourFiveRelation = this.options.relation[3];
if (this.options.cssUnit !== 'px' && this.options.cssUnit !== 'rem') {
this.options.cssUnit = 'px';
}
this.setBase();
this.init();
};
IosSelect.prototype = {
init: function() {
this.initLayer();
// 选中元素的信息
this.selectOneObj = {};
this.selectTwoObj = {};
this.selectThreeObj = {};
this.selectFourObj = {};
this.selectFiveObj = {};
this.setOneLevel(this.options.oneLevelId, this.options.twoLevelId, this.options.threeLevelId, this.options.fourLevelId, this.options.fiveLevelId);
},
initLayer: function() {
var self = this;
var sureText = this.options.sureText || '确定';
var closeText = this.options.closeText || '取消';
var all_html = [
'<header style="height: ' + this.options.headerHeight + this.options.cssUnit + '; line-height: ' + this.options.headerHeight + this.options.cssUnit + '" class="iosselect-header">',
'<a style="height: ' + this.options.headerHeight + this.options.cssUnit + '; line-height: ' + this.options.headerHeight + this.options.cssUnit + '" href="javascript:void(0)" class="close">' + closeText + '</a>',
'<a style="height: ' + this.options.headerHeight + this.options.cssUnit + '; line-height: ' + this.options.headerHeight + this.options.cssUnit + '" href="javascript:void(0)" class="sure">' + sureText + '</a>',
'<h2 id="iosSelectTitle"></h2>',
'</header>',
'<section class="iosselect-box">',
'<div class="one-level-contain" id="oneLevelContain">',
'<ul class="select-one-level">',
'</ul>',
'</div>',
'<div class="two-level-contain" id="twoLevelContain">',
'<ul class="select-two-level">',
'</ul>',
'</div>',
'<div class="three-level-contain" id="threeLevelContain">',
'<ul class="select-three-level">',
'</ul>',
'</div>',
'<div class="four-level-contain" id="fourLevelContain">',
'<ul class="select-four-level">',
'</ul>',
'</div>',
'<div class="five-level-contain" id="fiveLevelContain">',
'<ul class="select-five-level">',
'</ul>',
'</div>',
'</section>',
'<hr class="cover-area1"/>',
'<hr class="cover-area2"/>',
'<div class="ios-select-loading-box" id="iosSelectLoadingBox">',
'<div class="ios-select-loading"></div>',
'</div>'
].join('\r\n');
this.offsetTop = document.body.scrollTop;
this.iosSelectLayer = new Layer(all_html, {
className: 'ios-select-widget-box ' + this.typeBox + (this.options.addClassName? ' ' + this.options.addClassName: '') + (this.options.showAnimate? ' fadeInUp': ''),
container: this.options.container || '',
showAnimate:this.options.showAnimate,
fallback:this.options.fallback,
offsetTop:this.offsetTop
});
this.iosSelectTitleDom = this.iosSelectLayer.el.querySelector('#iosSelectTitle');
this.iosSelectLoadingBoxDom = this.iosSelectLayer.el.querySelector('#iosSelectLoadingBox');
if (this.options.title) {
this.iosSelectTitleDom.innerHTML = this.options.title;
}
if (this.options.headerHeight && this.options.itemHeight) {
this.coverArea1Dom = this.iosSelectLayer.el.querySelector('.cover-area1');
this.coverArea1Dom.style.top = this.options.headerHeight + this.options.itemHeight * this.options.coverArea1Top + this.options.cssUnit;
this.coverArea2Dom = this.iosSelectLayer.el.querySelector('.cover-area2');
this.coverArea2Dom.style.top = this.options.headerHeight + this.options.itemHeight * this.options.coverArea2Top + this.options.cssUnit;
}
this.oneLevelContainDom = this.iosSelectLayer.el.querySelector('#oneLevelContain');
this.twoLevelContainDom = this.iosSelectLayer.el.querySelector('#twoLevelContain');
this.threeLevelContainDom = this.iosSelectLayer.el.querySelector('#threeLevelContain');
this.fourLevelContainDom = this.iosSelectLayer.el.querySelector('#fourLevelContain');
this.fiveLevelContainDom = this.iosSelectLayer.el.querySelector('#fiveLevelContain');
this.oneLevelUlContainDom = this.iosSelectLayer.el.querySelector('.select-one-level');
this.twoLevelUlContainDom = this.iosSelectLayer.el.querySelector('.select-two-level');
this.threeLevelUlContainDom = this.iosSelectLayer.el.querySelector('.select-three-level');
this.fourLevelUlContainDom = this.iosSelectLayer.el.querySelector('.select-four-level');
this.fiveLevelUlContainDom = this.iosSelectLayer.el.querySelector('.select-five-level');
this.iosSelectLayer.el.querySelector('.layer').style.height = this.options.itemHeight * this.options.itemShowCount + this.options.headerHeight + this.options.cssUnit;
this.oneLevelContainDom.style.height = this.options.itemHeight * this.options.itemShowCount + this.options.cssUnit;
document.body.classList.add('ios-select-body-class');
document.body.style.top = "-" + this.offsetTop + "px";
this.scrollOne = new IScrollForIosSelect('#oneLevelContain', {
probeType: 3,
bounce: false
});
this.scrollOne.on('scrollStart', function() {
self.toggleClassList(self.oneLevelContainDom);
});
this.scrollOne.on('scroll', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
plast = Math.round(pa) + 1;
self.toggleClassList(self.oneLevelContainDom);
self.changeClassName(self.oneLevelContainDom, plast);
});
this.scrollOne.on('scrollEnd', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
var to = 0;
if (Math.ceil(pa) === Math.round(pa)) {
to = Math.ceil(pa) * self.options.itemHeight * self.baseSize;
plast = Math.ceil(pa) + 1;
} else {
to = Math.floor(pa) * self.options.itemHeight * self.baseSize;
plast = Math.floor(pa) + 1;
}
self.scrollOne.scrollTo(0, -to, 0);
self.toggleClassList(self.oneLevelContainDom);
var pdom = self.changeClassName(self.oneLevelContainDom, plast);
self.selectOneObj = iosSelectUtil.attrToData(pdom, plast);
if (self.level > 1 && self.options.oneTwoRelation === 1) {
self.setTwoLevel(self.selectOneObj.id, self.selectTwoObj.id, self.selectThreeObj.id, self.selectFourObj.id, self.selectFiveObj.id);
}
});
this.scrollOne.on('scrollCancel', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
var to = 0;
if (Math.ceil(pa) === Math.round(pa)) {
to = Math.ceil(pa) * self.options.itemHeight * self.baseSize;
plast = Math.ceil(pa) + 1;
} else {
to = Math.floor(pa) * self.options.itemHeight * self.baseSize;
plast = Math.floor(pa) + 1;
}
self.scrollOne.scrollTo(0, -to, 0);
self.toggleClassList(self.oneLevelContainDom);
var pdom = self.changeClassName(self.oneLevelContainDom, plast);
self.selectOneObj = iosSelectUtil.attrToData(pdom, plast);
if (self.level > 1 && self.options.oneTwoRelation === 1) {
self.setTwoLevel(self.selectOneObj.id, self.selectTwoObj.id, self.selectThreeObj.id, self.selectFourObj.id, self.selectFiveObj.id);
}
});
if (this.level >= 2) {
this.twoLevelContainDom.style.height = this.options.itemHeight * this.options.itemShowCount + this.options.cssUnit;
this.scrollTwo = new IScrollForIosSelect('#twoLevelContain', {
probeType: 3,
bounce: false
});
this.scrollTwo.on('scrollStart', function() {
self.toggleClassList(self.twoLevelContainDom);
});
this.scrollTwo.on('scroll', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 0;
plast = Math.round(pa) + 1;
self.toggleClassList(self.twoLevelContainDom);
self.changeClassName(self.twoLevelContainDom, plast);
});
this.scrollTwo.on('scrollEnd', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
var to = 0;
if (Math.ceil(pa) === Math.round(pa)) {
to = Math.ceil(pa) * self.options.itemHeight * self.baseSize;
plast = Math.ceil(pa) + 1;
} else {
to = Math.floor(pa) * self.options.itemHeight * self.baseSize;
plast = Math.floor(pa) + 1;
}
self.scrollTwo.scrollTo(0, -to, 0);
self.toggleClassList(self.twoLevelContainDom);
var pdom = self.changeClassName(self.twoLevelContainDom, plast);
self.selectTwoObj = iosSelectUtil.attrToData(pdom, plast);
if (self.level > 2 && self.options.twoThreeRelation === 1) {
self.setThreeLevel(self.selectOneObj.id, self.selectTwoObj.id, self.selectThreeObj.id, self.selectFourObj.id, self.selectFiveObj.id);
}
});
this.scrollTwo.on('scrollCancel', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
var to = 0;
if (Math.ceil(pa) === Math.round(pa)) {
to = Math.ceil(pa) * self.options.itemHeight * self.baseSize;
plast = Math.ceil(pa) + 1;
} else {
to = Math.floor(pa) * self.options.itemHeight * self.baseSize;
plast = Math.floor(pa) + 1;
}
self.scrollTwo.scrollTo(0, -to, 0);
self.toggleClassList(self.twoLevelContainDom);
var pdom = self.changeClassName(self.twoLevelContainDom, plast);
self.selectTwoObj = iosSelectUtil.attrToData(pdom, plast);
if (self.level > 2 && self.options.twoThreeRelation === 1) {
self.setThreeLevel(self.selectOneObj.id, self.selectTwoObj.id, self.selectThreeObj.id, self.selectFourObj.id, self.selectFiveObj.id);
}
});
}
if (this.level >= 3) {
this.threeLevelContainDom.style.height = this.options.itemHeight * this.options.itemShowCount + this.options.cssUnit;
this.scrollThree = new IScrollForIosSelect('#threeLevelContain', {
probeType: 3,
bounce: false
});
this.scrollThree.on('scrollStart', function() {
self.toggleClassList(self.threeLevelContainDom);
});
this.scrollThree.on('scroll', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 0;
plast = Math.round(pa) + 1;
self.toggleClassList(self.threeLevelContainDom);
self.changeClassName(self.threeLevelContainDom, plast);
});
this.scrollThree.on('scrollEnd', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
var to = 0;
if (Math.ceil(pa) === Math.round(pa)) {
to = Math.ceil(pa) * self.options.itemHeight * self.baseSize;
plast = Math.ceil(pa) + 1;
} else {
to = Math.floor(pa) * self.options.itemHeight * self.baseSize;
plast = Math.floor(pa) + 1;
}
self.scrollThree.scrollTo(0, -to, 0);
self.toggleClassList(self.threeLevelContainDom);
var pdom = self.changeClassName(self.threeLevelContainDom, plast);
self.selectThreeObj = iosSelectUtil.attrToData(pdom, plast);
if (self.level >= 4 && self.options.threeFourRelation === 1) {
self.setFourLevel(self.selectOneObj.id, self.selectTwoObj.id, self.selectThreeObj.id, self.selectFourObj.id, self.selectFiveObj.id);
}
});
this.scrollThree.on('scrollCancel', function() {
var pa = Math.abs(this.y / self.baseSize) / self.options.itemHeight;
var plast = 1;
var to = 0;
if (Mat