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Media: Optimize media models. 

* Merge `Composite` model with general `Attachments` model, as `Attachments.validate` and `Composite.evaluate` were functionally equivalent.
* Queries should only watch `wp.Uploader.queue`, as watching `Attachments.all` results in queries attempting to add attachments before their properties are set (which then results a few too many irrelevant adds/removes). `Attachments.all` should potentially be removed or rethought.

see #21390.


git-svn-id: https://develop.svn.wordpress.org/trunk@22655 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Daryl Koopersmith 2012-11-19 02:43:10 +00:00
parent 5c2e5e3231
commit 5b426eac50
2 changed files with 51 additions and 87 deletions
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135
wp-includes/js/media-models.js
View File

@ -358,20 +358,62 @@ window.wp = window.wp || {};
},
validate: function( attachment, options ) {
var valid = this.validator( attachment ),
hasAttachment = !! this.getByCid( attachment.cid );
// Only retain the `silent` option.
options = {
silent: options && options.silent
};
return this[ this.validator( attachment ) ? 'add' : 'remove' ]( attachment, options );
if ( ! valid && hasAttachment )
this.remove( attachment, options );
else if ( valid && ! hasAttachment )
this.add( attachment, options );
return this;
},
validateAll: function( attachments ) {
_.each( attachments.models, function( attachment ) {
this.validate( attachment, { silent: true });
}, this );
return this;
},
observe: function( attachments ) {
attachments.on( 'add change', this.validate, this );
this.observers = this.observers || [];
this.observers.push( attachments );
attachments.on( 'add change remove', this._validateHandler, this );
attachments.on( 'reset', this._validateAllHandler, this );
this.validateAll( attachments );
return this;
},
unobserve: function( attachments ) {
attachments.off( 'add change', this.validate, this );
if ( attachments ) {
attachments.off( null, null, this );
this.observers = _.without( this.observers, attachments );
} else {
_.each( this.observers, function( attachments ) {
attachments.off( null, null, this );
}, this );
delete this.observers;
}
return this;
},
_validateHandler: function( attachment, attachments, options ) {
return this.validate( attachment, options );
},
_validateAllHandler: function( attachments, options ) {
return this.evaluateAll( attachments, options );
},
mirror: function( attachments ) {
@ -518,15 +560,15 @@ window.wp = window.wp || {};
return false;
};
// Observe the central `Attachments.all` model to watch for new
// matches for the query.
// Observe the central `wp.Uploader.queue` collection to watch for
// new matches for the query.
//
// Only observe when a limited number of query args are set. There
// are no filters for other properties, so observing will result in
// false positives in those queries.
allowed = [ 's', 'order', 'orderby', 'posts_per_page', 'post_mime_type' ];
if ( _( this.args ).chain().keys().difference( allowed ).isEmpty().value() )
this.observe( Attachments.all );
if ( wp.Uploader && _( this.args ).chain().keys().difference( allowed ).isEmpty().value() )
this.observe( wp.Uploader.queue );
},
more: function( options ) {
@ -732,83 +774,4 @@ window.wp = window.wp || {};
}
});
/**
* wp.media.model.Composite
*
* Creates a model that can simultaneously pull from two or more collections.
*/
media.model.Composite = Attachments.extend({
initialize: function( models, options ) {
this.observe( this, { silent: true });
Attachments.prototype.initialize.apply( this, arguments );
},
evaluate: function( attachment, options ) {
var valid = this.validator( attachment ),
hasAttachment = !! this.getByCid( attachment.cid );
if ( ! valid && hasAttachment )
this.remove( attachment, options );
else if ( valid && ! hasAttachment )
this.add( attachment, options );
return this;
},
validator: function() {
return true;
},
evaluateAll: function( attachments, options ) {
_.each( attachments.models, function( attachment ) {
this.evaluate( attachment, { silent: true });
}, this );
return this;
},
observe: function( attachments, options ) {
var silent = options && options.silent;
this.observers = this.observers || [];
this.observers.push( attachments );
attachments.on( 'add remove', silent ? this._evaluateSilentHandler : this._evaluateHandler, this );
attachments.on( 'reset', silent ? this._evaluateAllSilentHandler : this._evaluateAllHandler, this );
this.evaluateAll( attachments, options );
return this;
},
unobserve: function( attachments ) {
if ( attachments ) {
attachments.off( null, null, this );
this.observers = _.without( this.observers, attachments );
} else {
_.each( this.observers, function( attachments ) {
attachments.off( null, null, this );
}, this );
delete this.observers;
}
return this;
},
_evaluateHandler: function( attachment, attachments, options ) {
return this.evaluate( attachment, options );
},
_evaluateAllHandler: function( attachments, options ) {
return this.evaluateAll( attachments, options );
},
_evaluateSilentHandler: function( attachment, attachments, options ) {
return this.evaluate( attachment, _.defaults({ silent: true }, options ) );
},
_evaluateAllSilentHandler: function( attachments, options ) {
return this.evaluateAll( attachments, _.defaults({ silent: true }, options ) );
}
});
}(jQuery));

3
wp-includes/js/media-views.js
View File

@ -387,7 +387,7 @@
this.set( '_library', original = this.get('library') );
// Create a composite library in its place.
composite = new media.model.Composite( null, {
composite = new media.model.Attachments( null, {
props: _.pick( original.props.toJSON(), 'order', 'orderby' )
});
@ -2410,6 +2410,7 @@
_.each(['add','remove'], function( method ) {
this.collection.on( method, function( attachment, attachments, options ) {
console.log( method, 'attachment', attachment.id, 'at', options.index );
this[ method ]( attachment, options.index );
}, this );
}, this );