JQuery - 在生成的内容上使用选择器 [英] JQuery - Use selectors on generated content
问题描述
对于第一代,我使用以下函数:
var articles = [
{
img:{src:this.base_url +'assets / img / frontend / placeholder.png' ,alt:'Image Description'},
title:'Title Here',
text:'Lorem ipsum dolor sit amet,consectetur adispiscing elit,sed diam nonummy nibh euismod tincidunt ut laoreet'+
'dolore magna aliquam erat volutpat。 '
},
{
img:{src:this.base_url +'assets / img / frontend / placeholder.png',alt: '图像描述'},
标题:'标题在这里',
文本:'Lorem ipsum dolor sit amet,consectetur adispiscing elit,sed diam nonummy nibh euismod tincidunt ut laoreet'+
'dolore大a am er。。 '
},
{
img:{src:this.base_url +'assets / img / frontend / placeholder.png',alt: '图像描述'},
标题:'标题在这里',
文本:'Lorem ipsum dolor sit amet,consectetur adispiscing elit,sed diam nonummy nibh euismod tincidunt ut laoreet'+
'dolore大a am er。。 Ut; en im;;;;;;;;;;;;;;;;;;'
}
];
var template = Handlebars.compile($('#picture-above-text').html());
$('div.editor-wrapper').append(template(articles));
在页面中插入以下html:
< div class =row insumo-editor-modulestyle =display:none;>
{{#each this}}
< article class =span4article-tile>
< figure>
< div class =figure-holder>
< img src ={{img.src}}alt ={{img.alt}}>
< span class =figure-indicator>< / span>
< / div>
< figcaption>
< div class =editable>< h4> {{title}}< i class =icon-edit>< / i>< / h4>< / div>
< div class =editable>< p> {{text}}< i class =icon-edit>< / i>< / p>< / div>
< / figcaption>
< / figure>
< / article>
{{/ each}}
< / div>
到目前为止,没有问题。但是当我使用
$('i.icon-edit').on('click',function(){
alert('editing');
});
没有任何事情发生。有人知道为什么会发生这种情况吗?我想是因为当DOM首次生成时,图标不在页面上。有没有办法?
提前感谢
由于动态添加图标编辑
,因此您需要使用事件委托注册事件处理程序
//新方法(jQuery 1.7+) - .on(事件,选择器,处理程序)
$(document).on('click','i.icon-edit',function(event){
event.preventDefault();
alert('editing' );
});
I'm having problems selecting elements with jquery selectors on content generated with javascript.
For the generation I use the following function:
var articles = [
{
img: { src: this.base_url + 'assets/img/frontend/placeholder.png', alt: 'Image Description' },
title : 'Title Here',
text: 'Lorem ipsum dolor sit amet, consectetur adispiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet ' +
'dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci.'
},
{
img: { src: this.base_url + 'assets/img/frontend/placeholder.png', alt: 'Image Description' },
title : 'Title Here',
text: 'Lorem ipsum dolor sit amet, consectetur adispiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet ' +
'dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci.'
},
{
img: { src: this.base_url + 'assets/img/frontend/placeholder.png', alt: 'Image Description' },
title : 'Title Here',
text: 'Lorem ipsum dolor sit amet, consectetur adispiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet ' +
'dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci.'
}
];
var template = Handlebars.compile( $( '#picture-above-text' ).html() );
$( 'div.editor-wrapper' ).append( template( articles ) );
This inserts the following html in the page :
<div class="row insumo-editor-module" style="display: none;">
{{#each this}}
<article class="span4" article-tile>
<figure>
<div class="figure-holder">
<img src="{{img.src}}" alt="{{img.alt}}">
<span class="figure-indicator"></span>
</div>
<figcaption>
<div class="editable"><h4>{{title}} <i class="icon-edit"></i></h4></div>
<div class="editable"><p>{{text}} <i class="icon-edit"></i></p></div>
</figcaption>
</figure>
</article>
{{/each}}
</div>
Up to this point there are no problems. However when I use
$( 'i.icon-edit' ).on( 'click', function() {
alert( 'editing' );
});
nothing is happening. Does anyone know why this is happening? I guess it's because the icon wasn't on the page when the DOM was first generated. Is there any way around this?
Thanks in advance
Since the icon-edit
is added dynamically, you need to use event delegation to register the event handler
// New way (jQuery 1.7+) - .on(events, selector, handler)
$(document).on('click', 'i.icon-edit', function(event) {
event.preventDefault();
alert( 'editing' );
});
这篇关于JQuery - 在生成的内容上使用选择器的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!