Created
September 25, 2012 19:49
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Ember.PaginationSupport
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var get = Ember.get; | |
/** | |
@extends Ember.Mixin | |
Implements common pagination management properties for controllers. | |
*/ | |
Ember.PaginationSupport = Ember.Mixin.create({ | |
/** | |
*/ | |
total: 0, | |
/** | |
*/ | |
rangeStart: 0, | |
/** | |
*/ | |
rangeWindowSize: 10, | |
/** | |
*/ | |
rangeStop: Ember.computed('total', 'rangeStart', 'rangeWindowSize', function() { | |
var rangeStop = get(this, 'rangeStart') + get(this, 'rangeWindowSize'), | |
total = get(this, 'total'); | |
if (rangeStop < total) { | |
return rangeStop; | |
} | |
return total; | |
}).cacheable(), | |
/** | |
*/ | |
page: Ember.computed('rangeStart', 'rangeWindowSize', function() { | |
return (get(this, 'rangeStart') / get(this, 'rangeWindowSize')) + 1; | |
}).cacheable(), | |
/** | |
*/ | |
totalPages: Ember.computed('total', 'rangeWindowSize', function() { | |
return Math.ceil(get(this, 'total') / get(this, 'rangeWindowSize')); | |
}).cacheable(), | |
/** | |
*/ | |
hasPrevious: Ember.computed('rangeStart', function() { | |
return get(this, 'rangeStart') > 0; | |
}).cacheable(), | |
/** | |
*/ | |
hasNext: Ember.computed('rangeStop', 'total', function() { | |
return get(this, 'rangeStop') < get(this, 'total'); | |
}).cacheable(), | |
/** | |
*/ | |
didRequestRange: Ember.K, | |
/** | |
*/ | |
nextPage: function() { | |
if (get(this, 'hasNext')) { | |
this.incrementProperty('rangeStart', get(this, 'rangeWindowSize')); | |
} | |
}, | |
/** | |
*/ | |
previousPage: function() { | |
if (get(this, 'hasPrevious')) { | |
this.decrementProperty('rangeStart', get(this, 'rangeWindowSize')); | |
} | |
}, | |
rangeDidChange: Ember.observer(function() { | |
this.didRequestRange(get(this, 'rangeStart'), get(this, 'rangeStop')); | |
}, 'rangeStart', 'rangeStop') | |
}); |
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