Polymer 如何动态创建聚合元素\简单标记
我有这样一种聚合物元素:Polymer 如何动态创建聚合元素\简单标记,polymer,Polymer,我有这样一种聚合物元素: <polymer-element name="x-block" attributes="data"> <template> <div class="block-wrapper"> <div class="plus-button"on-click="{{showMdl}}">+</div> <div hidden?="{{!showMo
<polymer-element name="x-block" attributes="data">
<template>
<div class="block-wrapper">
<div class="plus-button"on-click="{{showMdl}}">+</div>
<div hidden?="{{!showModal}}" id="modal">
Modal
</div>
<content select="header"></content>
</div>
</template>
/*Polymer */
<script>
Polymer({
ready: function(){
this.showModal = false;
},
showMdl: function(e,detail,sender){
this.showModal = true;
this.$.modal.style.top = e.layerY+'px';
this.$.modal.style.left = e.layerX+'px';
var newElement = document.createElement('div')
newElement.innerHTML = 'dynamicllyElement';
newElement.setAttribute('on-click','{{clickOnDynamicllyElement}}');
this.$.modal.appendChild(newElement);
},
clickOnDynamicllyElement:function(){
console.log('1111')
}
});
</script>
</polymer-element>
<script>
Polymer('name-tag', {nameColor: 'red'});
var el = document.createElement('div');
el.innerHTML = '\
<polymer-element name="name-tag" attributes="name">\
<template>\
Hello <span style="color:{{nameColor}}">{{name}}</span>\
</template>\
</polymer-element>';
// The custom elements polyfill can't see the <polymer-element>
// unless you put it in the DOM.
document.body.appendChild(el);
</script>
+
情态动词
/*聚合物*/
聚合物({
就绪:函数(){
this.showModal=false;
},
showMdl:函数(e、详细信息、发送方){
this.showModal=true;
这个$.modal.style.top=e.layerY+'px';
这个$.modal.style.left=e.layerX+'px';
var newElement=document.createElement('div')
newElement.innerHTML='dynamicllyElement';
setAttribute('on-click','{{clickOnDynamiclyElement}}');
此.$.modal.appendChild(新元素);
},
单击DynamiclyElement:函数(){
console.log('1111')
}
});
单击OnDynamiclyElement
不起作用。您可以使用undoc'd injectBoundHTML()
例如:
this.injectBoundHTML('<div on-click="{{clickOnDynamicllyElement}}">dynamicllyElement</div>', this.$.modal);
this.injectBoundHTML('dynamiclyelement',this.$.modal);
免责声明-Polymer团队已在Polymer文档中的其他地方回答了此问题
强制登记
元素可以在纯JavaScript中注册,如下所示:
<polymer-element name="x-block" attributes="data">
<template>
<div class="block-wrapper">
<div class="plus-button"on-click="{{showMdl}}">+</div>
<div hidden?="{{!showModal}}" id="modal">
Modal
</div>
<content select="header"></content>
</div>
</template>
/*Polymer */
<script>
Polymer({
ready: function(){
this.showModal = false;
},
showMdl: function(e,detail,sender){
this.showModal = true;
this.$.modal.style.top = e.layerY+'px';
this.$.modal.style.left = e.layerX+'px';
var newElement = document.createElement('div')
newElement.innerHTML = 'dynamicllyElement';
newElement.setAttribute('on-click','{{clickOnDynamicllyElement}}');
this.$.modal.appendChild(newElement);
},
clickOnDynamicllyElement:function(){
console.log('1111')
}
});
</script>
</polymer-element>
<script>
Polymer('name-tag', {nameColor: 'red'});
var el = document.createElement('div');
el.innerHTML = '\
<polymer-element name="name-tag" attributes="name">\
<template>\
Hello <span style="color:{{nameColor}}">{{name}}</span>\
</template>\
</polymer-element>';
// The custom elements polyfill can't see the <polymer-element>
// unless you put it in the DOM.
document.body.appendChild(el);
</script>
聚合物('name-tag',{nameColor:'red'});
var el=document.createElement('div');
el.innerHTML\
\
\
你好{{name}\
\
';
//自定义元素polyfill无法看到
//除非你把它放在DOM里。
文件.正文.附件(el);
您需要将添加到文档中,以便自定义元素polyfill拾取它
重要提示:由于此处的Polymer调用不在范围内,因此必须包含tag name参数。注意:我的回答可能有点过头了。最好只使用
newElement.addEventListener('click',this.clickOnDynamiclyElement.bind(this))正如Polymer团队的Scott解释的那样,HTML应该只在您真正需要数据绑定动态HTML时使用,而不是简单地侦听事件。