jQuery EasyUI App - Create an RSS feed reader
May 08, 2021 jQuery EasyUI
Table of contents
jQuery EasyUI app - Create an RSS feed reader
In this section, we'll show you how to use the jQuery EasyUI framework to create an RSS feed reader.
Here's what plug-ins we'll use and how they'll work:
- layout: Create the user interface for your app.
- Datagrid: Displays a list of RSS feeds.
- Tree: Show feed channels.
Step 1: Create a layout
<body class="easyui-layout">
<div region="north" border="false" class="rtitle">
jQuery EasyUI RSS Reader Demo
</div>
<div region="west" title="Channels Tree" split="true" border="false" style="width:200px;background:#EAFDFF;">
<ul id="t-channels" url="data/channels.json"></ul>
</div>
<div region="center" border="false">
<div class="easyui-layout" fit="true">
<div region="north" split="true" border="false" style="height:200px">
<table id="dg" url="get_feed.php" border="false" rownumbers="true" fit="true" fitColumns="true" singleSelect="true">
<thead>
<tr>
<th field="title" width="100">Title</th>
<th field="description" width="200">Description</th>
<th field="pubdate" width="80">Publish Date</th>
</tr>
</thead>
</table>
</div>
<div region="center" border="false" style="overflow:hidden">
<iframe id="cc" scrolling="auto" frameborder="0" style="width:100%;height:100%"></iframe>
</div>
</div>
</div>
</body>Step 2: DataGrid handles events
In this step, we deal with some user-triggered events:
$('#dg').datagrid({
onSelect: function(index,row){
$('#cc').attr('src', row.link);
},
onLoadSuccess:function(){
var rows = $(this).datagrid('getRows');
if (rows.length){
$(this).datagrid('selectRow',0);
}
}
});This example uses the 'onSelect' event to display the contents of the feed, and the 'onLoadSuccess' event is used to select the first line.
Step 3: Tree menu handles events
When the Tree data is loaded, we need to select the first leaf node and call the 'select' method to select that node. U se the 'onSelect' event to get the selected node so that we can get the corresponding 'url' value. Finally, we call dataGrid's 'load' method to refresh the feed list data.
$('#t-channels').tree({
onSelect: function(node){
var url = node.attributes.url;
$('#dg').datagrid('load',{
url: url
});
},
onLoadSuccess:function(node,data){
if (data.length){
var id = data[0].children[0].children[0].id;
var n = $(this).tree('find', id);
$(this).tree('select', n.target);
}
}
});