我需要从 Flexslider 配置功能中的视图访问模型(我想根据哪个幻灯片处于活动状态来更改一些内容)。
我的问题是:当我this.model
在 Flexslider 函数中使用时,我得到的输出显然与 Flexslider 相关,而不是 Backbone 模型。
以下代码当前有效,但这是因为 MySlider 对象是可以在任何地方访问的全局对象。显然,这不是一个好的做法,所以我想通过直接访问 Flexslider 配置中的视图模型来替换它。
define([
'jquery',
'underscore',
'backbone',
'handlebars',
'app/views/slide.view',
'flexslider',
'widget',
'templates'
],
function($, _, Backbone, Handlebars, SlideView, FlexSlider, Widget) {
var SliderView = Backbone.View.extend({
el: '#slider-wrapper',
template: Handlebars.templates.slider,
widget: Handlebars.templates.widget,
test: this,
initialize: function() {
this.model.on('change', this.render, this);
},
render: function() {
var that = this,
startAtIndex = 0,
i = 0,
live = false,
firstInLine = false;
console.log('Rendering slider...');
this.liveChanges = [false, false, false, false, false];
this.$el.html(this.template({ slides: this.model.toJSON() }));
console.warn(this.model.toJSON());
_.each(this.model.models, function(slide) {
var slideView = new SlideView({ el: '#' + slide.get('id'), model: slide });
slideView.render();
if ( slide.isLive() )
{
that.liveChanges[i] = true;
startAtIndex = i;
live = true;
}
// if no live set next program in line
if ( !firstInLine && !live && ( slide.get('started_at_real') > new Date().getTime()/1000 ) )
{
startAtIndex = i;
firstInLine = true;
}
i++;
});
// Init slider
$('.flexslider').flexslider({
animation: "slide",
controlNav: 'thumbnails',
directionNav: true,
slideshow: false,
slideshowSpeed: 4000,
pauseOnHover: true,
startAt: startAtIndex,
touch: true,
animationLoop: true,
start: function(slider){
// trigger window resize => flexslider bug fix = not starting at startAtIndex
$(window).resize();
// Set thumbnail background
var bgHeight = $('.flexslider').find('#thumb-0').height();
$('.flex-control-thumbs').css('height', bgHeight);
MySlider.currentSlide = slider.currentSlide;
$('.widget').html(Handlebars.templates.widget(MySlider.widgets[slider.currentSlide]));
},
after: function(slider) {
// todo: this fires when the animation completes, should fire on start instead
MySlider.currentSlide = slider.currentSlide;
$('.widget').html(Handlebars.templates.widget(MySlider.widgets[slider.currentSlide]));
}
});
任何帮助将不胜感激!