Created
July 25, 2013 04:06
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body { | |
color: #444; | |
font-family: Helvetica, Arial, sans-serif; | |
font-size: 14px; | |
padding: 30px; | |
margin: 0px; | |
} | |
h1 { | |
font-size: 24px; | |
line-height: 1.2em; | |
margin: 0px 0px 10px 0px; | |
} | |
/* Branch */ | |
.tree-branch { | |
padding: 0px; | |
margin: 0px; | |
} | |
.tree-node .tree-branch { | |
padding-left: 10px; /* Nested tree branches should be indented */ | |
} | |
/* Node */ | |
.tree-node { | |
list-style: none; | |
line-height: 20px; | |
} | |
/* Arrow */ | |
.tree-node .toggle-icon { | |
cursor: pointer; | |
display: inline-block; | |
width: 10px; | |
margin-right: 0px; | |
font-size: 10px; | |
} | |
.tree-node .toggle-icon:hover { | |
opacity: 0.8; | |
} | |
.tree-node .toggle-icon.leaf { | |
visibility: hidden; | |
} | |
/* Node text */ | |
.tree-node .text { | |
cursor: pointer; | |
text-decoration: underline; | |
} | |
.tree-node .text:hover { | |
text-decoration: none; | |
} |
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script type="text/javascript"> | |
window.ENV = window.ENV || {}; | |
ENV.EXPERIMENTAL_CONTROL_HELPER = true; | |
</script> | |
<script src="http://code.jquery.com/jquery-1.9.1.min.js | |
"></script> | |
<script src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.0.0-rc.3/handlebars.js"></script> | |
<script src="//cdnjs.cloudflare.com/ajax/libs/ember.js/1.0.0-rc.1/ember.js"></script> | |
<meta charset=utf-8 /> | |
<title>Ember.js Tree Example With Selection</title> | |
</head> | |
<body> | |
<script data-template-name="application" type="text/x-handlebars"> | |
<h1>Ember.js Tree Example With Selection</h1> | |
{{control "treeBranch" App.treeRoot}} | |
{{#if App.selectedNodes.length}} | |
<p>You have selected:</p> | |
<ul> | |
{{#each node in App.selectedNodes}} | |
<li>{{node.text}}</li> | |
{{/each}} | |
</ul> | |
{{else}} | |
<p style="color:green;">Try to select some nodes.</p> | |
{{/if}} | |
<p><a href="http://billysbilling.com/blog/How-to-implement-a-tree-in-Ember-js">Read the blog post</a></p> | |
</script> | |
<script data-template-name="tree" type="text/x-handlebars"> | |
{{control "treeBranch" content}} | |
</script> | |
<script data-template-name="tree-branch" type="text/x-handlebars"> | |
{{each children itemController="treeNode" itemViewClass="App.TreeNodeView"}} | |
</script> | |
<script data-template-name="tree-node" type="text/x-handlebars"> | |
<span {{bindAttr class=":toggle-icon children.length::leaf"}} {{action toggle}}> | |
{{#if isExpanded}} | |
▼ | |
{{else}} | |
▶ | |
{{/if}} | |
</span> | |
{{view Ember.Checkbox checkedBinding="checked"}} | |
<a {{action click}} class="text">{{text}}</a> | |
{{#if isExpanded}} | |
{{control "treeBranch" content}} | |
{{/if}} | |
</script> | |
</body> | |
</html> |
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App = Ember.Application.create(); | |
App.TreeBranchController = Ember.ObjectController.extend({ | |
}); | |
App.register('controller:treeBranch', App.TreeBranchController, {singleton: false}); | |
App.TreeBranchView = Ember.View.extend({ | |
tagName: 'ul', | |
templateName: 'tree-branch', | |
classNames: ['tree-branch'] | |
}); | |
App.TreeNodeController = Ember.ObjectController.extend({ | |
isExpanded: false, | |
checked: false, | |
contentDidChange: function() { | |
this.set('checked', App.get('selectedNodes').contains(this.get('content'))); | |
}.observes('content'), | |
toggle: function() { | |
this.set('isExpanded', !this.get('isExpanded')); | |
}, | |
click: function() { | |
console.log('Clicked: '+this.get('text')); | |
}, | |
checkedDidChange: function() { | |
var selectedNodes = App.get('selectedNodes'), | |
node = this.get('content'); | |
if (this.get('checked')) { | |
if (!selectedNodes.contains(node)) { | |
selectedNodes.pushObject(node); | |
} | |
} else { | |
selectedNodes.removeObject(node); | |
} | |
}.observes('checked') | |
}); | |
App.register('controller:treeNode', App.TreeNodeController, {singleton: false}); | |
App.TreeNodeView = Ember.View.extend({ | |
tagName: 'li', | |
templateName: 'tree-node', | |
classNames: ['tree-node'] | |
}); | |
App.set('selectedNodes', Em.A()); //Start with an empty array | |
App.set('treeRoot', { | |
text: 'Root', | |
children: [ | |
{ | |
text: 'People', | |
children: [ | |
{ | |
text: 'Basketball players', | |
children: [ | |
{ | |
text: 'Lebron James', | |
children: [] | |
}, | |
{ | |
text: 'Kobe Bryant', | |
children: [] | |
} | |
] | |
}, | |
{ | |
text: 'Astronauts', | |
children: [ | |
{ | |
text: 'Neil Armstrong', | |
children: [] | |
}, | |
{ | |
text: 'Yuri Gagarin', | |
children: [] | |
} | |
] | |
} | |
] | |
}, | |
{ | |
text: 'Fruits', | |
children: [ | |
{ | |
text: 'Banana', | |
children: [] | |
}, | |
{ | |
text: 'Pineapple', | |
children: [] | |
}, | |
{ | |
text: 'Orange', | |
children: [] | |
} | |
] | |
}, | |
{ | |
text: 'Clothes', | |
children: [ | |
{ | |
text: 'Women', | |
children: [ | |
{ | |
text: 'Dresses', | |
children: [] | |
}, | |
{ | |
text: 'Tops', | |
children: [] | |
} | |
] | |
}, | |
{ | |
text: 'Men', | |
children: [ | |
{ | |
text: 'Jeans', | |
children: [] | |
}, | |
{ | |
text: 'Shirts', | |
children: [] | |
} | |
] | |
} | |
] | |
} | |
] | |
}); |
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