seckill.page.js
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/**
* [秒抢页面js]
* author: 陈峰<feng.chen@yoho.cn>
* date: 2016/09/08
*/
require('common.js');
var yoho = require('../yoho-app');
var $ = require('yoho-jquery'),
IScroll = require('yoho-iscroll'),
loading = require('plugin/loading'),
lazyload = require('yoho-jquery-lazyload'),
tip = require('plugin/tip');
var seckillObj = {};
lazyload('img.lazy');
seckillObj = {
$productList: null, // DOMContentLoaded的时候 赋值,即init
el: {
// doms
$navUl: $('.nav-ul'),
$navList: $('.nav-list'),
// 变量
times: $('.nav-ul>li').length,
startX: 0,
timeWidth: 0,
focusTimeWidth: 0,
iScroll: null,
currentTick: null
},
/**
* [初始化界面]
*/
init: function() {
var $el = this.el, that = this;
var focus = $el.$navUl.find('>li.focus');
this.$productList = $('.product-list');
$el.$navUl.find('>li').click(function() {
that.selectTime(this);
});
$(window).resize(function() {
that.initNav();
});
that.initNav();
if (focus.length && (focus.hasClass('now') || focus.hasClass('wait'))) {
that.initTick($el.$navUl.find('>li.focus'));
}
this.bindEvents();
},
/**
* [初始化时间段]
*/
initNav: function() {
var $el = this.el, that = this;
$el.timeWidth = ($el.$navUl.find('>li:not(.focus)').width() + 1);
$el.focusTimeWidth = ($el.$navUl.find('>li.focus').width() + 1);
$el.$navUl.width($el.times * $el.timeWidth + $el.focusTimeWidth).removeClass('hide');
// 只有时间段大于3个才需要定位
if ($el.$navUl.find('>li').length > 3 && $el.$navUl.find('>li.focus').length) {
$el.startX = (0 - ($el.$navUl.find('>li.focus').index() - 1) * $el.timeWidth);
}
if ($el.iScroll) {
$el.iScroll.destroy();
}
$el.iScroll = new IScroll($el.$navList[0], {
scrollX: true,
scrollY: false,
startX: $el.startX,
tap: true,
eventPassthrough: true,
preventDefault: true,
bounceTime: 400,
bounceEasing: {
style: 'cubic-bezier(0.333333, 0.666667, 0.666667, 1)'
}
});
that.registerScrollEvents($el.iScroll);
},
/**
* [注册iscroll事件,滑动停止时判断位置自动选中居中时间段]
*/
registerScrollEvents: function(iScroll) {
var $el = this.el, that = this;
iScroll.on('scrollStart', function() {
$el.$navList.addClass('srolling');
});
iScroll.on('scrollEnd', function() {
var offsetLeft = 0;
var i = 0;
// 避免死循环
if ($el.$navList.hasClass('srolling')) {
$el.$navList.removeClass('srolling');
offsetLeft = this.x - $(window).width() / 2;
for (; i < $el.$navUl.find('>li').length; i++) {
offsetLeft += $el.$navUl.find('>li').eq(i).width();
if (offsetLeft >= 0) { // 判断选中时间段
that.selectTime($el.$navUl.find('>li').eq(i));
break;
}
}
}
});
},
/**
* [选中时间段]
*/
selectTime: function(elem) {
var $el = this.el, that = this;
var index = 0;
$el.$navUl.find('>li').removeClass('focus');
index = $(elem).index();
$(elem).addClass('focus');
// 点击切换时遇到首尾特殊处理选中时间段位置,大于3个才需要滑动选中
if ($el.$navUl.find('>li').length > 3) {
if (index === 0) {
$el.iScroll.scrollTo(0, 0, 400);
} else if (index === $el.$navUl.find('>li').length - 1) {
$el.iScroll.scrollTo(0 - $el.$navUl.width() + $el.timeWidth * 2 + $el.focusTimeWidth, 0, 400);
} else {
$el.iScroll.scrollTo((0 - (index - 1) * $el.timeWidth), 0, 400);
}
}
if ($el.currentTick) {
clearTimeout($el.currentTick);
$el.currentTick = undefined;
}
if ($(elem).hasClass('now') || $(elem).hasClass('wait')) {
// 初始化倒计时并开始计时
that.initTick(elem);
}
// 刷新商品列表
that.refreshProductList($(elem).find('input.activityId').val());
},
/**
* [刷新状态]
*/
refreshList: function(elem) {
var $el = this.el, that = this, time, nowTime, nextTime;
// 刷新时间段状态
$el.$navUl.find('>li').each(function() {
$(this).removeClass('now over wait');
time = new Date(parseInt($(this).find('input.date').val(), 10));
nowTime = new Date();
if (nowTime > time) { // 当前时间大于这个时间段,已经开始和即将开始两种情况
if ($(this).next('.time-item').length) {
nextTime = new Date(parseInt($(this).next().find('input.date').val(), 10));
if (nowTime < nextTime) { // 下一个时间段与当前时间来区别是否正在抢购
$(this).addClass('now');
that.selectTime(this);
} else {
$(this).addClass('over');
}
} else { // 大于这个时间段但是后面没有秒抢时间端了,则依然显示抢购中
$(this).addClass('now');
that.selectTime(this);
}
} else {
$(this).addClass('wait');
}
});
// 刷新商品列表
var focusElem = $el.$navUl.find('>li.focus');
if (focusElem.length) {
that.refreshProductList(focusElem.find('input.activityId').val());
}
},
/**
* [异步加载商品列表]
*/
refreshProductList: function(activityId) {
loading.show();
$.ajax({
url: '/product/seckill/get-product-list',
data: {
uid: yoho.isLogin(), // only app use;
activityId: activityId
},
beforeSend: function(jqXhr, config) {
if (yoho.isApp) {
config.url += '&app_version=1';
}
},
success: function(data) {
$('.product-list').html(data);
lazyload('img.lazy');
window.rePosFooter();
},
error: function(data) {
tip.show('网络断开连接了~');
}
})
.always(function() {
loading.hide();
});
},
/**
* [初始化倒计时]
*/
initTick: function(elem) {
var $el = this.el, that = this,
time,
nowTime = Date.parse(new Date()) / 1000,
offsetTime;
if ($(elem).hasClass('now')) {
time = $(elem).next().find('input.date').val() / 1000;
} else {
time = $(elem).find('input.date').val() / 1000;
}
offsetTime = time - nowTime;
that.startTick(elem, offsetTime, nowTime);
},
/**
* [开始倒计时]
*/
startTick: function(elem, offsetTime, nowTime) {
var that = this,
$el = this.el,
hour = parseInt(offsetTime / (60 * 60), 10),
minute = parseInt(offsetTime % (60 * 60) / 60, 10),
second = offsetTime % 60;
if (offsetTime <= 0) { // 结束倒计时刷新状态
that.refreshList(elem);
} else {
$(elem).find('.tick.hour').text(hour < 0 ? '00' : (hour < 10 ? ('0' + hour) : hour));
$(elem).find('.tick.minute').text(minute < 0 ? '00' : (minute < 10 ? ('0' + minute) : minute));
$(elem).find('.tick.second').text(second < 0 ? '00' : (second < 10 ? ('0' + second) : second));
$el.currentTick = setTimeout(function() {
var curSec = Math.floor(Date.now() / 1000);
offsetTime = offsetTime - (curSec - nowTime);
that.startTick(elem, offsetTime, curSec);
}, 1000);
}
},
bindEvents: function() {
if (yoho.isApp) {
this.$productList.on('click', '[data-remind]', $.proxy(this.toggleRemind, this));
}
},
/*
only app
添加/删除提醒
*/
toggleRemind: function(event) {
var $remindBtn,
$product;
var actionName,
action,
params,
on_off;
var okTip,
failTip,
onsuccess;
event.stopPropagation();
if (!yoho.isLogin()) {
yoho.invokeMethod('go.login');
return;
}
$remindBtn = $(event.currentTarget);
$product = $remindBtn.closest('.item');
actionName = $remindBtn.data('action');
// default
on_off = true;
action = 'go.addSecKill';
params = {
skn: $product.data('skn'),
startTime: $product.find('[data-start]').data('start'),
productName: $.trim($product.find('.item-title').text())
};
okTip = '设置提醒成功<br>将在开抢3分钟前提醒';
failTip = '设置提醒失败';
onsuccess = $.noop;
if (actionName === 'cancel') {
on_off = false;
action = 'go.delSecKill';
okTip = '取消提醒成功';
failTip = '取消提醒失败';
}
onsuccess = function() {
$.post('/product/seckill/remind?app_version=1', {
on_off: on_off,
activity_id: $product.data('activity'),
product_skn: $product.data('skn'),
uid: yoho.isLogin(),
sec_kill_id: 1,
app_type: 0
})
.done(function(res) {
if (res.code === 200 && res.data === 'success') {
$remindBtn.hide().siblings().show();
tip.show(okTip);
} else {
tip.show(failTip);
}
})
.fail(function() {
tip.show(failTip);
});
};
yoho.invokeMethod(action, params, onsuccess, function() {
tip.show(failTip);
});
}
};
$(function() {
!$('.seckill-list').hasClass('seckill-list-error') && seckillObj.init();
});
window.seckillRefresh = function() {
location.reload();
};