polymer-quick tour of polymer

注册一个元素

<link rel="import"
      href="bower_components/polymer/polymer.html">
//没有添加<dom-module> <script> Polymer({ is:'proto-element', ready:function(){ this.innerHTML='sfp'; } }) </script>

增加本地元素:在<template>中

<link rel="import"
      href="bower_components/polymer/polymer.html">

<dom-module id="dom-element">
  <template>
    <p>I'm a DOM element. This is my local DOM!</p>
  </template>
</dom-module>

<script>
  Polymer({
    is: "dom-element",
  });
</script>

本地元素布局:在main中

<link rel="import"
      href="bower_components/polymer/polymer.html">

<dom-module id="picture-frame">
  <!-- scoped CSS for this element -->
  <style>
    div {
      display: inline-block;
      background-color: #ccc;
      border-radius: 8px;
      padding: 4px;
    }
  </style>
  <template>
    <div>
      <!-- any children are rendered here -->
      <content></content>
    </div>
  </template>
</dom-module>

<script>
  Polymer({
    is: "picture-frame",
  });
</script>
<!DOCTYPE html>
<html>
  <head>
    <script src="bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
    <link rel="import" href="picture-frame.html">
  </head>
  <body>
    <picture-frame>
      <image src="images/p-logo.svg">
    </picture-frame>
  </body>
</html>

数据绑定:在Polymer()中定义数据,在<template>中显示

<link rel="import"
      href="bower_components/polymer/polymer.html">

<dom-module id="name-tag">
  <template>
    <!-- bind to the "owner" property -->
    This is <b>{{owner}}</b>'s name-tag element.
  </template>
</dom-module>

<script>
  Polymer({
    is: "name-tag",
    ready: function() {
      // set this element's owner property
      this.owner = "Daniel";
    }
  });
</script> 

声明properties:看起来跟数据绑定功能类似,其实是要序列化为attribute;声明attribute,用hostAttributes

<link rel="import"
      href="bower_components/polymer/polymer.html">

<dom-module id="configurable-name-tag">
  <template>
    <!-- bind to the "owner" property -->
    This is <b>{{owner}}</b>'s configurable-name-tag element.
  </template>
</dom-module>

<script>
  Polymer({
    is: "configurable-name-tag",
    properties: {
      // declare the owner property
      owner: {
        type: String,
        value: "Daniel"
      }
    }
  });
</script>

绑定properties:把定义的值传给属性

<link rel="import"
      href="bower_components/polymer/polymer.html">
<dom-module id='proto-element'>
  <style>
  div{
    width:100px;
    height:100px;
    background-color:olive;
  }
  </style>
  <template>
    <div>
      <p id='{{owner}}'>local dom</p>
      <content></content>
    </div>
  </template>
</dom-module>
<script>
Polymer({
  is:'proto-element',
  properties:{
    owner:{
      type:String,
      value:'bind properties'
    }
  }
  
})
</script>

绑定数据和ready:声明了一个属性owner,default value:'wj', ready 之后改为'sfp'

<link rel="import"
      href="bower_components/polymer/polymer.html">
  <!-- 需要加一个id,value为proto-element -->
  <dom-module id='proto-element'>
    <template>
    //增加本地元素
      <p>this is a local dom</p>
      <p><strong>{{owner}}</strong> test data binding</p>
    </template>
  </dom-module>
  <script>
   Polymer({
     is: "proto-element",
     ready: function() {
      this.owner='sfp';

     },
     properties:{
      owner:{
        type:String,
        value:'wj'
      }
     }
   });
 </script>

  

 

  

posted on 2015-07-17 22:52  j.w  阅读(207)  评论(0编辑  收藏  举报