Created
August 23, 2011 09:57
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image-gallery
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| class Thumb extends Backbone.Model | |
| defaults: | |
| uri: '' | |
| state: '' | |
| select: (state) -> | |
| st = '' | |
| st = 'selected' if state | |
| @set('state' : st) | |
| class Thumbs extends Backbone.Collection | |
| model: Thumb | |
| fetch: -> | |
| _.map(urls, (url)-> new Thumb(uri: url)) | |
| select: (model) -> | |
| @selected.select(false) if @selected? | |
| @selected = model | |
| @selected.select(true) | |
| @trigger('thumbs:selected') | |
| selectedThumb: ()-> | |
| @selected | |
| class FrontView extends Backbone.View | |
| template: _.template('<img src="<%= uri %>" />') | |
| el: $('#front') | |
| initialize: ()-> | |
| @model.bind('thumbs:selected', @render) | |
| render: ()=> | |
| @el.html(@template(@model.selectedThumb().toJSON())) | |
| @ # important to give 'this' out, on rendering we'll access 'el' | |
| thumbs = new Thumbs | |
| frontview = new FrontView(model:thumbs) | |
| class ThumbView extends Backbone.View | |
| tagName: 'li' | |
| template: _.template('<img src="<%= uri %>" class="<%= state %>" />') | |
| events: | |
| "click" : "selectThumb" | |
| initialize: ()-> | |
| @model.bind('change', @render) | |
| render: ()=> | |
| $(@.el).html(@template(@model.toJSON())) | |
| @ | |
| selectThumb: ()-> | |
| thumbs.select(@model) | |
| class AppView extends Backbone.View | |
| el: $("container") | |
| render: ()-> | |
| _.each thumbs.fetch(), (t)-> | |
| $('div ul').append( new ThumbView(model: t).render().el) | |
| window.App = new AppView | |
| window.App.render() |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="public/javascripts/underscore.js"></script> | |
| <script type="text/javascript" src="public/javascripts/jquery-1.6.2.min.js"></script> | |
| <script type="text/javascript" src="public/javascripts/backbone.js"></script> | |
| <script type="text/javascript" src="public/javascripts/json2.js"></script> | |
| <style type="text/css"> | |
| li img { width: 100px; height:100px; cursor:pointer;} | |
| li { float:left;} | |
| img.selected{ border:1px solid black;} | |
| </style> | |
| </head> | |
| <body> | |
| <div id="container"> | |
| <div id="front"> | |
| </div> | |
| <div> | |
| <ul> | |
| </ul> | |
| </div> | |
| </div> | |
| <script type="text/javascript"> | |
| var urls = [ | |
| 'http://farm7.static.flickr.com/6089/6059010802_436cefa521_z.jpg', | |
| 'http://farm7.static.flickr.com/6088/6065742147_3d62b32deb_z.jpg', | |
| 'http://farm7.static.flickr.com/6197/6065590914_ab1acccf87_z.jpg', | |
| 'http://farm7.static.flickr.com/6081/6066708246_e1d9a812ed.jpg', | |
| 'http://farm7.static.flickr.com/6066/6063442584_feb03a88d8.jpg' | |
| ]; | |
| </script> | |
| <script type="text/javascript" src="app.js"></script> | |
| </body> | |
| </html> |
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| var Thumb = Backbone.Model.extend({ | |
| defaults: { | |
| uri: '', | |
| state: '' | |
| }, | |
| select: function(state){ | |
| this.set({'state': state ? 'selected' : ''}); | |
| } | |
| }); | |
| var Thumbs = Backbone.Collection.extend({ | |
| model: Thumb | |
| , | |
| fetch: function(){ | |
| return _.map(urls, function(url){ return new Thumb({uri: url})}); | |
| } | |
| , | |
| select: function(model){ | |
| if( this.selectedThumb() ){ | |
| this.selectedThumb().select(false); | |
| } | |
| this.selected = model; | |
| this.selected.select(true); | |
| this.trigger('thumbs:selected'); | |
| } | |
| , | |
| selectedThumb: function(){ | |
| return this.selected; | |
| } | |
| }); | |
| var thumbs = new Thumbs(); | |
| var FrontView = Backbone.View.extend({ | |
| template: _.template('<img src="<%= uri %>" />'), | |
| el: $('#front'), | |
| initialize: function(){ | |
| this.model.bind('thumbs:selected', this.render, this); | |
| }, | |
| render: function(){ | |
| this.el.html(this.template(this.model.selectedThumb().toJSON())); | |
| } | |
| }); | |
| var frontview = new FrontView({model:thumbs}); | |
| var ThumbView = Backbone.View.extend({ | |
| tagName: 'li', | |
| template: _.template('<img src="<%= uri %>" class="<%= state %>" />'), | |
| events: { | |
| "click" : "selectThumb" | |
| }, | |
| initialize: function(){ | |
| this.model.bind('change', this.render, this); | |
| }, | |
| render: function(){ | |
| console.log('rendering'); | |
| $(this.el).html(this.template(this.model.toJSON())); | |
| return this; | |
| }, | |
| selectThumb: function(){ | |
| thumbs.select(this.model); | |
| } | |
| }); | |
| var AppView = Backbone.View.extend({ | |
| el: $("#container"), | |
| render: function(){ | |
| _.each(new Thumbs().fetch(), | |
| function(t){ | |
| $('div ul').append( new ThumbView({model: t}).render().el) | |
| }); | |
| } | |
| }); | |
| window.App = new AppView(); | |
| window.App.render(); |
excellent!, thanks
You have an error in your HTML, you're not closing off div#container. And on line 37 of the JavaScript you're missing parenthesis it should be var thumbs = new Thumbs();
Thanks!
plz fix lin 52 to $(this.el).html(this.template(this.model.selectedThumb().toJSON()));
Updating line 52 in js.app fixes it for me too-- not using coffeescript but it looks like it ought to produce what brewing provides as the fix.
Here's the updated gist https://gist.github.com/mlncn/5529698
Very nice work! Thanks for sharing.
Just a short one:
Line 38 requires should be
$(@el).html(@template(@model.selectedThumb().toJSON()))
to prevent: Uncaught TypeError: Object #<HTMLDivElement> has no method 'html'
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You could remove the @ attribute in the end of the bind method with coffeescript if you use the "fat arrow"