Wordpress/wp-includes/js/media-views.js
2012-10-31 21:43:59 +00:00

1608 lines
40 KiB
JavaScript

(function($){
var media = wp.media,
Attachment = media.model.Attachment,
Attachments = media.model.Attachments,
Query = media.model.Query,
l10n;
// Link any localized strings.
l10n = media.view.l10n = _.isUndefined( _wpMediaViewsL10n ) ? {} : _wpMediaViewsL10n;
// Check if the browser supports CSS 3.0 transitions
$.support.transition = (function(){
var style = document.documentElement.style,
transitions = {
WebkitTransition: 'webkitTransitionEnd',
MozTransition: 'transitionend',
OTransition: 'oTransitionEnd otransitionend',
transition: 'transitionend'
}, transition;
transition = _.find( _.keys( transitions ), function( transition ) {
return ! _.isUndefined( style[ transition ] );
});
return transition && {
end: transitions[ transition ]
};
}());
// Makes it easier to bind events using transitions.
media.transition = function( selector ) {
var deferred = $.Deferred();
if ( $.support.transition ) {
if ( ! (selector instanceof $) )
selector = $( selector );
// Resolve the deferred when the first element finishes animating.
selector.first().one( $.support.transition.end, deferred.resolve );
// Otherwise, execute on the spot.
} else {
deferred.resolve();
}
return deferred.promise();
};
/**
* ========================================================================
* CONTROLLERS
* ========================================================================
*/
/**
* wp.media.controller.StateMachine
*/
media.controller.StateMachine = function( states ) {
this.states = new Backbone.Collection( states );
};
// Use Backbone's self-propagating `extend` inheritance method.
media.controller.StateMachine.extend = Backbone.Model.extend;
_.extend( media.controller.StateMachine.prototype, {
// Fetch a state model.
//
// Implicitly creates states.
get: function( id ) {
// Ensure that the `states` collection exists so the `StateMachine`
// can be used as a mixin.
this.states = this.states || new Backbone.Collection();
if ( ! this.states.get( id ) )
this.states.add({ id: id });
return this.states.get( id );
},
// Selects or returns the active state.
//
// If a `id` is provided, sets that as the current state.
// If no parameters are provided, returns the current state object.
state: function( id ) {
var previous;
if ( id ) {
if ( previous = this.state() )
previous.trigger('deactivate');
this._state = id;
return this.state().trigger('activate');
}
if ( this._state )
return this.get( this._state );
}
});
// Map methods from the `states` collection to the `StateMachine` itself.
_.each([ 'on', 'off', 'trigger' ], function( method ) {
media.controller.StateMachine.prototype[ method ] = function() {
// Ensure that the `states` collection exists so the `StateMachine`
// can be used as a mixin.
this.states = this.states || new Backbone.Collection();
// Forward the method to the `states` collection.
this.states[ method ].apply( this.states, arguments );
return this;
};
});
// wp.media.controller.Library
// ---------------------------
media.controller.Library = Backbone.Model.extend({
defaults: {
id: 'library',
multiple: false,
describe: false,
title: l10n.mediaLibraryTitle
},
initialize: function() {
if ( ! this.get('selection') ) {
this.set( 'selection', new media.model.Selection( null, {
multiple: this.get('multiple')
}) );
}
if ( ! this.get('library') )
this.set( 'library', media.query() );
if ( ! this.get('edge') )
this.set( 'edge', 120 );
if ( ! this.get('gutter') )
this.set( 'gutter', 8 );
this.on( 'activate', this.activate, this );
this.on( 'deactivate', this.deactivate, this );
},
activate: function() {
this.toolbar();
this.sidebar();
this.content();
// If we're in a workflow that supports multiple attachments,
// automatically select any uploading attachments.
if ( this.get('multiple') )
wp.Uploader.queue.on( 'add', this.selectUpload, this );
this.get('selection').on( 'selection:single', this.buildDetails, this );
this.get('selection').on( 'selection:unsingle', this.clearDetails, this );
},
deactivate: function() {
var toolbar = this._postLibraryToolbar;
if ( toolbar )
this.get('selection').off( 'add remove', toolbar.visibility, toolbar );
wp.Uploader.queue.off( 'add', this.selectUpload, this );
this.get('selection').off( 'selection:single', this.buildDetails, this );
this.get('selection').off( 'selection:unsingle', this.clearDetails, this );
},
toolbar: function() {
var frame = this.frame,
toolbar;
// Toolbar.
toolbar = this._postLibraryToolbar = new media.view.Toolbar.PostLibrary({
controller: frame,
state: this
});
frame.toolbar( toolbar );
this.get('selection').on( 'add remove', toolbar.visibility, toolbar );
},
sidebar: function() {
var frame = this.frame;
// Sidebar.
frame.sidebar( new media.view.Sidebar({
controller: frame
}) );
this.details();
frame.sidebar().add({
search: new media.view.Search({
controller: frame,
model: this.get('library').props,
priority: 20
}),
selection: new media.view.SelectionPreview({
controller: frame,
collection: this.get('selection'),
priority: 40
})
});
},
content: function() {
var frame = this.frame;
// Content.
frame.content( new media.view.Attachments({
controller: frame,
collection: this.get('library'),
// The single `Attachment` view to be used in the `Attachments` view.
AttachmentView: media.view.Attachment.Library
}).render() );
},
selectUpload: function( attachment ) {
this.get('selection').add( attachment );
},
details: function() {
var single = this.get('selection').single();
this[ single ? 'buildDetails' : 'clearDetails' ]( single );
},
buildDetails: function( model ) {
this.frame.sidebar().add( 'details', new media.view.Attachment.Details({
controller: this.frame,
model: model,
priority: 80
}).render() );
return this;
},
clearDetails: function( model ) {
if ( this.get('selection').single() )
return this;
this.frame.sidebar().add( 'details', new Backbone.View({
priority: 80
}).render() );
return this;
},
toggleSelection: function( model ) {
var selection = this.get('selection');
if ( selection.has( model ) ) {
// If the model is the single model, remove it.
// If it is not the same as the single model,
// it now becomes the single model.
selection[ selection.single() === model ? 'remove' : 'single' ]( model );
} else {
selection.add( model ).single();
}
return this;
}
});
// wp.media.controller.Gallery
// ---------------------------
media.controller.Gallery = media.controller.Library.extend({
defaults: {
id: 'gallery',
multiple: false,
describe: true,
title: l10n.createGalleryTitle,
edge: 199,
editing: false
},
toolbar: function() {
this.frame.toolbar( new media.view.Toolbar.Gallery({
controller: this.frame,
state: this
}) );
},
sidebar: function() {
var frame = this.frame;
// Sidebar.
frame.sidebar( new media.view.Sidebar({
controller: frame
}) );
this.details();
frame.sidebar().add({
settings: new media.view.Settings.Gallery({
controller: frame,
model: this.get('library').props,
priority: 40
}).render()
});
},
content: function() {
this.frame.content( new media.view.Attachments({
controller: this.frame,
collection: this.get('library'),
sortable: true,
// The single `Attachment` view to be used in the `Attachments` view.
AttachmentView: media.view.Attachment.Gallery
}).render() );
}
});
/**
* ========================================================================
* VIEWS
* ========================================================================
*/
/**
* wp.media.view.Frame
*/
media.view.Frame = Backbone.View.extend({
tagName: 'div',
className: 'media-frame',
template: media.template('media-frame'),
initialize: function() {
_.defaults( this.options, {
state: 'library',
title: '',
selection: [],
library: {},
modal: true,
multiple: false,
uploader: true,
editing: false
});
this.createSelection();
this.createSubviews();
this.createStates();
},
render: function() {
var els = [ this.toolbar().el, this.sidebar().el, this.content().el ];
if ( this.modal )
this.modal.render();
// Detach any views that will be rebound to maintain event bidnings.
this.$el.children().filter( els ).detach();
this.$el.empty().append( els );
// Render the window uploader if it exists.
if ( this.uploader )
this.uploader.render().$el.appendTo( this.$el );
return this;
},
createSelection: function() {
var controller = this,
selection = this.options.selection;
if ( ! (selection instanceof media.model.Selection) ) {
selection = this.options.selection = new media.model.Selection( selection, {
multiple: this.options.multiple
});
}
},
createStates: function() {
var options = this.options;
// Create the default `states` collection.
this.states = new Backbone.Collection();
// Ensure states have a reference to the frame.
this.states.on( 'add', function( model ) {
model.frame = this;
}, this );
// Add the default states.
this.states.add([
new media.controller.Library({
selection: options.selection,
library: media.query( options.library ),
multiple: this.options.multiple
}),
new media.controller.Gallery({
library: options.selection,
editing: options.editing
})
]);
// Set the default state.
this.state( options.state );
},
createSubviews: function() {
// Initialize a stub view for each subview region.
_.each(['toolbar','sidebar','content'], function( subview ) {
this[ '_' + subview ] = new Backbone.View({
tagName: 'div',
className: 'media-' + subview
});
}, this );
// Initialize modal container view.
if ( this.options.modal ) {
this.modal = new media.view.Modal({
controller: this,
$content: this.$el,
title: this.options.title
});
}
// Initialize window-wide uploader.
if ( this.options.uploader ) {
this.uploader = new media.view.UploaderWindow({
uploader: {
dropzone: this.modal ? this.modal.$el : this.$el
}
});
}
}
});
// Make the `Frame` a `StateMachine`.
_.extend( media.view.Frame.prototype, media.controller.StateMachine.prototype );
// Create methods to fetch and replace individual subviews.
_.each(['toolbar','sidebar','content'], function( subview ) {
media.view.Frame.prototype[ subview ] = function( view ) {
var previous = this[ '_' + subview ];
if ( ! view )
return previous;
view.$el.addClass( 'media-' + subview );
if ( previous.destroy )
previous.destroy();
previous.undelegateEvents();
previous.$el.replaceWith( view.$el );
this[ '_' + subview ] = view;
};
});
// Map some of the modal's methods to the frame.
_.each(['open','close','attach','detach'], function( method ) {
media.view.Frame.prototype[ method ] = function( view ) {
if ( this.modal )
this.modal[ method ].apply( this.modal, arguments );
return this;
};
});
/**
* wp.media.view.Modal
*/
media.view.Modal = Backbone.View.extend({
tagName: 'div',
template: media.template('media-modal'),
events: {
'click .media-modal-backdrop, .media-modal-close' : 'closeHandler'
},
initialize: function() {
this.controller = this.options.controller;
_.defaults( this.options, {
container: document.body,
title: ''
});
},
render: function() {
// Ensure content div exists.
this.options.$content = this.options.$content || $('<div />');
// Detach the content element from the DOM to prevent
// `this.$el.html()` from garbage collecting its events.
this.options.$content.detach();
this.$el.html( this.template({
title: this.options.title
}) );
this.options.$content.addClass('media-modal-content');
this.$('.media-modal').append( this.options.$content );
return this;
},
attach: function() {
this.$el.appendTo( this.options.container );
this.controller.trigger( 'attach', this.controller );
return this;
},
detach: function() {
this.$el.detach();
this.controller.trigger( 'detach', this.controller );
return this;
},
open: function() {
this.$el.show();
this.controller.trigger( 'open', this.controller );
return this;
},
close: function() {
this.$el.hide();
this.controller.trigger( 'close', this.controller );
return this;
},
closeHandler: function( event ) {
event.preventDefault();
this.close();
},
content: function( $content ) {
// Detach any existing content to prevent events from being lost.
if ( this.options.$content )
this.options.$content.detach();
// Set and render the content.
this.options.$content = ( $content instanceof Backbone.View ) ? $content.$el : $content;
return this.render();
}
});
// wp.media.view.UploaderWindow
// ----------------------------
media.view.UploaderWindow = Backbone.View.extend({
tagName: 'div',
className: 'uploader-window',
template: media.template('uploader-window'),
initialize: function() {
var uploader;
this.controller = this.options.controller;
this.inline = new media.view.UploaderInline({
controller: this.controller,
uploaderWindow: this
}).render();
this.inline.$el.appendTo('body');
uploader = this.options.uploader = _.defaults( this.options.uploader || {}, {
container: this.inline.$el,
dropzone: this.$el,
browser: this.inline.$('.browser'),
params: {}
});
if ( uploader.dropzone ) {
// Ensure the dropzone is a jQuery collection.
if ( ! (uploader.dropzone instanceof $) )
uploader.dropzone = $( uploader.dropzone );
// Attempt to initialize the uploader whenever the dropzone is hovered.
uploader.dropzone.one( 'mouseenter dragenter', _.bind( this.maybeInitUploader, this ) );
}
},
render: function() {
this.maybeInitUploader();
this.$el.html( this.template( this.options ) );
return this;
},
refresh: function() {
if ( this.uploader )
this.uploader.refresh();
},
maybeInitUploader: function() {
var $id, dropzone;
// If the uploader already exists or the body isn't in the DOM, bail.
if ( this.uploader || ! this.$el.closest('body').length )
return;
$id = $('#post_ID');
if ( $id.length )
this.options.uploader.params.post_id = $id.val();
this.uploader = new wp.Uploader( this.options.uploader );
dropzone = this.uploader.dropzone;
dropzone.on( 'dropzone:enter', _.bind( this.show, this ) );
dropzone.on( 'dropzone:leave', _.bind( this.hide, this ) );
},
show: function() {
var $el = this.$el.show();
// Ensure that the animation is triggered by waiting until
// the transparent element is painted into the DOM.
_.defer( function() {
$el.css({ opacity: 1 });
});
},
hide: function() {
var $el = this.$el.css({ opacity: 0 });
media.transition( $el ).done( function() {
// Transition end events are subject to race conditions.
// Make sure that the value is set as intended.
if ( '0' === $el.css('opacity') )
$el.hide();
});
}
});
media.view.UploaderInline = Backbone.View.extend({
tagName: 'div',
className: 'uploader-inline',
template: media.template('uploader-inline'),
initialize: function() {
this.controller = this.options.controller;
// Track uploading attachments.
wp.Uploader.queue.on( 'add remove reset change:percent', this.renderUploadProgress, this );
},
destroy: function() {
wp.Uploader.queue.off( 'add remove reset change:percent', this.renderUploadProgress, this );
},
render: function() {
this.renderUploadProgress();
this.$el.html( this.template( this.options ) );
this.$bar = this.$('.media-progress-bar div');
return this;
},
renderUploadProgress: function() {
var queue = wp.Uploader.queue;
this.$el.toggleClass( 'uploading', !! queue.length );
if ( ! this.$bar || ! queue.length )
return;
this.$bar.width( ( queue.reduce( function( memo, attachment ) {
if ( attachment.get('uploading') )
return memo + ( attachment.get('percent') || 0 );
else
return memo + 100;
}, 0 ) / queue.length ) + '%' );
}
});
/**
* wp.media.view.Toolbar
*/
media.view.Toolbar = Backbone.View.extend({
tagName: 'div',
className: 'media-toolbar',
initialize: function() {
this.controller = this.options.controller;
this._views = {};
this.$primary = $('<div class="media-toolbar-primary" />').prependTo( this.$el );
this.$secondary = $('<div class="media-toolbar-secondary" />').prependTo( this.$el );
if ( this.options.items )
this.add( this.options.items, { silent: true });
if ( ! this.options.silent )
this.render();
},
render: function() {
var views = _.chain( this._views ).sortBy( function( view ) {
return view.options.priority || 10;
}).groupBy( function( view ) {
return ( view.options.priority || 10 ) > 0 ? 'primary' : 'secondary';
}).value();
// Make sure to detach the elements we want to reuse.
// Otherwise, `jQuery.html()` will unbind their events.
$( _.pluck( this._views, 'el' ) ).detach();
this.$primary.html( _.pluck( views.primary || [], 'el' ) );
this.$secondary.html( _.pluck( views.secondary || [], 'el' ) );
return this;
},
add: function( id, view, options ) {
options = options || {};
// Accept an object with an `id` : `view` mapping.
if ( _.isObject( id ) ) {
_.each( id, function( view, id ) {
this.add( id, view, { silent: true });
}, this );
if ( ! options.silent )
this.render();
return this;
}
if ( ! ( view instanceof Backbone.View ) ) {
view.classes = [ id ].concat( view.classes || [] );
view = new media.view.Button( view ).render();
}
view.controller = view.controller || this.controller;
this._views[ id ] = view;
if ( ! options.silent )
this.render();
return this;
},
get: function( id ) {
return this._views[ id ];
},
remove: function( id, options ) {
delete this._views[ id ];
if ( ! options || ! options.silent )
this.render();
return this;
}
});
// wp.media.view.Toolbar.PostLibrary
// ---------------------------------
media.view.Toolbar.PostLibrary = media.view.Toolbar.extend({
initialize: function() {
var state = this.options.state,
selection = state.get('selection'),
controller = this.options.controller;
this.options.items = {
'create-new-gallery': {
style: 'primary',
text: l10n.createNewGallery,
priority: 40,
click: function() {
this.controller.state('gallery');
}
},
'insert-into-post': new media.view.ButtonGroup({
priority: 30,
classes: 'dropdown-flip-x',
buttons: [
{
text: l10n.insertIntoPost,
click: function() {
controller.close();
state.trigger( 'insert', selection );
selection.clear();
}
},
{
classes: ['down-arrow'],
dropdown: new media.view.Settings.AttachmentDisplay().render().$el,
click: function( event ) {
var $el = this.$el;
if ( ! $( event.target ).closest('.dropdown').length )
$el.toggleClass('active');
// Stop the event from propagating further so we can bind
// a one-time event to the body (and ensure that a click
// on the dropdown won't trigger said event).
event.stopPropagation();
if ( $el.is(':visible') ) {
$(document.body).one( 'click', function() {
$el.removeClass('active');
});
}
}
}
]
}).render(),
'add-to-gallery': {
text: l10n.addToGallery,
priority: 20
}
};
media.view.Toolbar.prototype.initialize.apply( this, arguments );
this.visibility();
},
visibility: function() {
var state = this.options.state,
selection = state.get('selection'),
controller = this.options.controller,
count = selection.length,
showGallery;
// Check if every attachment in the selection is an image.
showGallery = count > 1 && selection.all( function( attachment ) {
return 'image' === attachment.get('type');
});
this.get('create-new-gallery').$el.toggle( showGallery );
insert = this.get('insert-into-post');
_.each( insert.buttons, function( button ) {
button.model.set( 'style', showGallery ? '' : 'primary' );
});
_.first( insert.buttons ).model.set( 'disabled', ! count );
}
});
// wp.media.view.Toolbar.Gallery
// -----------------------------
media.view.Toolbar.Gallery = media.view.Toolbar.extend({
initialize: function() {
var state = this.options.state,
editing = state.get('editing'),
library = state.get('library'),
controller = this.options.controller;
this.options.items = {
update: {
style: 'primary',
text: editing ? l10n.updateGallery : l10n.insertGallery,
priority: 40,
click: function() {
controller.close();
state.trigger( 'update', library );
library.clear();
controller.state('library');
}
},
cancel: {
text: l10n.cancel,
priority: -60,
click: function() {
if ( editing )
controller.close();
else
controller.state('library');
}
}
};
media.view.Toolbar.prototype.initialize.apply( this, arguments );
}
});
/**
* wp.media.view.Button
*/
media.view.Button = Backbone.View.extend({
tagName: 'a',
className: 'media-button',
attributes: { href: '#' },
events: {
'click': 'click'
},
defaults: {
text: '',
style: '',
size: 'large',
disabled: false
},
initialize: function() {
// Create a model with the provided `defaults`.
this.model = new Backbone.Model( this.defaults );
// If any of the `options` have a key from `defaults`, apply its
// value to the `model` and remove it from the `options object.
_.each( this.defaults, function( def, key ) {
var value = this.options[ key ];
if ( _.isUndefined( value ) )
return;
this.model.set( key, value );
delete this.options[ key ];
}, this );
if ( this.options.dropdown )
this.options.dropdown.addClass('dropdown');
this.model.on( 'change', this.render, this );
},
render: function() {
var classes = [ 'button', this.className ],
model = this.model.toJSON();
if ( model.style )
classes.push( 'button-' + model.style );
if ( model.size )
classes.push( 'button-' + model.size );
classes = _.uniq( classes.concat( this.options.classes ) );
this.el.className = classes.join(' ');
this.$el.attr( 'disabled', model.disabled );
// Detach the dropdown.
if ( this.options.dropdown )
this.options.dropdown.detach();
this.$el.text( this.model.get('text') );
if ( this.options.dropdown )
this.$el.append( this.options.dropdown );
return this;
},
click: function( event ) {
event.preventDefault();
if ( this.options.click && ! this.model.get('disabled') )
this.options.click.apply( this, arguments );
}
});
/**
* wp.media.view.ButtonGroup
*/
media.view.ButtonGroup = Backbone.View.extend({
tagName: 'div',
className: 'button-group button-large media-button-group',
initialize: function() {
this.buttons = _.map( this.options.buttons || [], function( button ) {
if ( button instanceof Backbone.View )
return button;
else
return new media.view.Button( button ).render();
});
delete this.options.buttons;
if ( this.options.classes )
this.$el.addClass( this.options.classes );
},
render: function() {
this.$el.html( $( _.pluck( this.buttons, 'el' ) ).detach() );
return this;
}
});
/**
* wp.media.view.Sidebar
*/
media.view.Sidebar = Backbone.View.extend({
tagName: 'div',
className: 'media-sidebar',
template: media.template('sidebar'),
initialize: function() {
this.controller = this.options.controller;
this._views = {};
if ( this.options.views )
this.add( this.options.views, { silent: true });
if ( ! this.options.silent )
this.render();
},
render: function() {
var els = _( this._views ).chain().sortBy( function( view ) {
return view.options.priority || 10;
}).pluck('el').value();
// Make sure to detach the elements we want to reuse.
// Otherwise, `jQuery.html()` will unbind their events.
$( els ).detach();
this.$el.html( this.template({
title: this.controller.state().get('title') || '',
uploader: this.controller.options.uploader
}) );
this.$('.sidebar-content').html( els );
if ( this.controller.uploader ) {
this.$el.append( this.controller.uploader.inline.$el );
this.controller.uploader.refresh();
}
return this;
},
add: function( id, view, options ) {
options = options || {};
// Accept an object with an `id` : `view` mapping.
if ( _.isObject( id ) ) {
_.each( id, function( view, id ) {
this.add( id, view, { silent: true });
}, this );
if ( ! options.silent )
this.render();
return this;
}
view.controller = view.controller || this.controller;
this._views[ id ] = view;
if ( ! options.silent )
this.render();
return this;
},
get: function( id ) {
return this._views[ id ];
},
remove: function( id, options ) {
delete this._views[ id ];
if ( ! options || ! options.silent )
this.render();
return this;
}
});
/**
* wp.media.view.Attachment
*/
media.view.Attachment = Backbone.View.extend({
tagName: 'li',
className: 'attachment',
template: media.template('attachment'),
events: {
'click .attachment-preview': 'toggleSelection',
'change .describe': 'describe'
},
buttons: {},
initialize: function() {
this.controller = this.options.controller;
this.model.on( 'change:sizes change:uploading change:caption change:title', this.render, this );
this.model.on( 'change:percent', this.progress, this );
this.model.on( 'add', this.select, this );
this.model.on( 'remove', this.deselect, this );
// Update the model's details view.
this.model.on( 'selection:single selection:unsingle', this.details, this );
this.details( this.model, this.controller.state().get('selection') );
// Prevent default navigation on all links.
this.$el.on( 'click', 'a', this.preventDefault );
},
destroy: function() {
this.model.off( null, null, this );
},
render: function() {
var attachment = this.model.toJSON(),
options = _.defaults( this.model.toJSON(), {
orientation: 'landscape',
uploading: false,
type: '',
subtype: '',
icon: '',
filename: '',
caption: '',
title: ''
});
options.buttons = this.buttons;
options.describe = this.controller.state().get('describe');
if ( 'image' === options.type )
_.extend( options, this.imageSize() );
this.$el.html( this.template( options ) );
if ( options.uploading )
this.$bar = this.$('.media-progress-bar div');
else
delete this.$bar;
// Check if the model is selected.
if ( this.selected() )
this.select();
return this;
},
progress: function() {
if ( this.$bar && this.$bar.length )
this.$bar.width( this.model.get('percent') + '%' );
},
toggleSelection: function( event ) {
this.controller.state().toggleSelection( this.model );
},
selected: function() {
var selection = this.controller.state().get('selection');
if ( selection )
return selection.has( this.model );
},
select: function( model, collection ) {
var selection = this.controller.state().get('selection');
// Check if a selection exists and if it's the collection provided.
// If they're not the same collection, bail; we're in another
// selection's event loop.
if ( ! selection || ( collection && collection !== selection ) )
return;
this.$el.addClass('selected');
},
deselect: function( model, collection ) {
var selection = this.controller.state().get('selection');
// Check if a selection exists and if it's the collection provided.
// If they're not the same collection, bail; we're in another
// selection's event loop.
if ( ! selection || ( collection && collection !== selection ) )
return;
this.$el.removeClass('selected');
},
details: function( model, collection ) {
var selection = this.controller.state().get('selection'),
details;
if ( selection !== collection )
return;
details = selection.single();
this.$el.toggleClass( 'details', details === this.model );
},
preventDefault: function( event ) {
event.preventDefault();
},
imageSize: function( size ) {
var sizes = this.model.get('sizes');
size = size || 'medium';
// Use the provided image size if possible.
if ( sizes && sizes[ size ] ) {
return _.clone( sizes[ size ] );
} else {
return {
url: this.model.get('url'),
width: this.model.get('width'),
height: this.model.get('height'),
orientation: this.model.get('orientation')
};
}
},
describe: function( event ) {
if ( 'image' === this.model.get('type') )
this.model.save( 'caption', event.target.value );
else
this.model.save( 'title', event.target.value );
}
});
/**
* wp.media.view.Attachment.Library
*/
media.view.Attachment.Library = media.view.Attachment.extend({
className: 'attachment library'
});
/**
* wp.media.view.Attachment.Gallery
*/
media.view.Attachment.Gallery = media.view.Attachment.extend({
buttons: {
close: true
},
events: (function() {
var events = _.clone( media.view.Attachment.prototype.events );
events['click .close'] = 'removeFromGallery';
return events;
}()),
removeFromGallery: function( event ) {
// Stop propagation so the model isn't selected.
event.stopPropagation();
this.controller.state().get('library').remove( this.model );
}
});
/**
* wp.media.view.Attachments
*/
media.view.Attachments = Backbone.View.extend({
tagName: 'ul',
className: 'attachments',
template: media.template('attachments-css'),
events: {
'scroll': 'scroll'
},
initialize: function() {
this.controller = this.options.controller;
this.el.id = _.uniqueId('__attachments-view-');
_.defaults( this.options, {
refreshSensitivity: 200,
refreshThreshold: 3,
AttachmentView: media.view.Attachment,
sortable: false
});
_.each(['add','remove'], function( method ) {
this.collection.on( method, function( attachment, attachments, options ) {
this[ method ]( attachment, options.index );
}, this );
}, this );
this.collection.on( 'reset', this.render, this );
// Throttle the scroll handler.
this.scroll = _.chain( this.scroll ).bind( this ).throttle( this.options.refreshSensitivity ).value();
this.initSortable();
this.controller.state().on( 'change:edge change:gutter', this.css, this );
this.css();
},
destroy: function() {
this.collection.off( 'add remove reset', null, this );
this.controller.state().off( 'change:edge change:gutter', this.css, this );
},
css: function() {
var $css = $( '#' + this.el.id + '-css' ),
state = this.controller.state();
if ( $css.length )
$css.remove();
media.view.Attachments.$head().append( this.template({
id: this.el.id,
edge: state.get('edge'),
gutter: state.get('gutter')
}) );
},
initSortable: function() {
var collection = this.collection,
from;
if ( ! this.options.sortable || ! $.fn.sortable )
return;
this.$el.sortable({
// If the `collection` has a `comparator`, disable sorting.
disabled: !! collection.comparator,
// Prevent attachments from being dragged outside the bounding
// box of the list.
containment: this.$el,
// Change the position of the attachment as soon as the
// mouse pointer overlaps a thumbnail.
tolerance: 'pointer',
// Record the initial `index` of the dragged model.
start: function( event, ui ) {
from = ui.item.index();
},
// Update the model's index in the collection.
// Do so silently, as the view is already accurate.
update: function( event, ui ) {
var model = collection.at( from );
collection.remove( model, {
silent: true
}).add( model, {
at: ui.item.index(),
silent: true
});
}
});
// If the `orderby` property is changed on the `collection`,
// check to see if we have a `comparator`. If so, disable sorting.
collection.props.on( 'change:orderby', function() {
this.$el.sortable( 'option', 'disabled', !! collection.comparator );
}, this );
},
render: function() {
// If there are no elements, load some.
if ( ! this.collection.length ) {
this.collection.more();
this.$el.empty();
return this;
}
// Otherwise, create all of the Attachment views, and replace
// the list in a single DOM operation.
this.$el.html( this.collection.map( function( attachment ) {
return new this.options.AttachmentView({
controller: this.controller,
model: attachment
}).render().$el;
}, this ) );
// Then, trigger the scroll event to check if we're within the
// threshold to query for additional attachments.
this.scroll();
return this;
},
add: function( attachment, index ) {
var view, children;
view = new this.options.AttachmentView({
controller: this.controller,
model: attachment
}).render();
children = this.$el.children();
if ( children.length > index )
children.eq( index ).before( view.$el );
else
this.$el.append( view.$el );
},
remove: function( attachment, index ) {
var children = this.$el.children();
if ( children.length )
children.eq( index ).detach();
},
scroll: function( event ) {
// @todo: is this still necessary?
if ( ! this.$el.is(':visible') )
return;
if ( this.el.scrollHeight < this.el.scrollTop + ( this.el.clientHeight * this.options.refreshThreshold ) ) {
this.collection.more();
}
}
}, {
$head: (function() {
var $head;
return function() {
return $head = $head || $('head');
};
}())
});
/**
* wp.media.view.Search
*/
media.view.Search = Backbone.View.extend({
tagName: 'input',
className: 'search',
attributes: {
type: 'text',
placeholder: l10n.search
},
events: {
'keyup': 'search'
},
render: function() {
this.el.value = this.model.escape('search');
return this;
},
search: function( event ) {
if ( event.target.value )
this.model.set( 'search', event.target.value );
else
this.model.unset('search');
}
});
/**
* wp.media.view.SelectionPreview
*/
media.view.SelectionPreview = Backbone.View.extend({
tagName: 'div',
className: 'selection-preview',
template: media.template('media-selection-preview'),
events: {
'click .clear-selection': 'clear'
},
initialize: function() {
_.defaults( this.options, {
clearable: true
});
this.controller = this.options.controller;
this.collection.on( 'add change:url remove', this.render, this );
this.render();
},
render: function() {
var options = _.clone( this.options ),
last, sizes, amount;
// If nothing is selected, display nothing.
if ( ! this.collection.length ) {
this.$el.empty();
return this;
}
options.count = this.collection.length;
last = this.collection.last();
sizes = last.get('sizes');
if ( 'image' === last.get('type') )
options.thumbnail = ( sizes && sizes.thumbnail ) ? sizes.thumbnail.url : last.get('url');
else
options.thumbnail = last.get('icon');
this.$el.html( this.template( options ) );
return this;
},
clear: function( event ) {
event.preventDefault();
this.collection.clear();
}
});
/**
* wp.media.view.Settings
*/
media.view.Settings = Backbone.View.extend({
tagName: 'div',
className: 'attachment-display-settings',
template: media.template('attachment-display-settings'),
events: {
'click button': 'updateHandler',
'change input': 'updateHandler',
'change select': 'updateHandler',
'change textarea': 'updateHandler'
},
settings: {},
initialize: function() {
var settings = this.settings;
this.model = this.model || new Backbone.Model();
_.each( settings, function( setting, key ) {
if ( setting.name )
this.model.set( key, getUserSetting( setting.name, setting.fallback ) );
else
this.model.set( key, this.model.get( key ) || setting.fallback );
}, this );
this.model.validate = function( attrs ) {
return _.any( attrs, function( value, key ) {
return ! settings[ key ] || ! _.contains( settings[ key ].accepts, value );
});
};
this.model.on( 'change', function( model, options ) {
if ( ! options.changes )
return;
_.each( _.keys( options.changes ), function( key ) {
if ( settings[ key ] && settings[ key ].name )
setUserSetting( settings[ key ].name, model.get( key ) );
});
}, this );
this.model.on( 'change', this.updateChanges, this );
},
render: function() {
this.$el.html( this.template( this.model.toJSON() ) );
// Select the correct values.
_( this.model.attributes ).chain().keys().each( this.update, this );
return this;
},
update: function( key ) {
var setting = this.settings[ key ],
$setting = this.$('[data-setting="' + key + '"]'),
$buttons;
if ( ! setting )
return;
if ( 'select' === setting.type ) {
$setting.find('[value="' + this.model.get( key ) + '"]').attr( 'selected', true );
} else {
$buttons = $setting.find('button').removeClass('active');
$buttons.filter( '[value="' + this.model.get( key ) + '"]' ).addClass('active');
}
},
updateHandler: function( event ) {
var $setting = $( event.target ).closest('[data-setting]');
event.preventDefault();
if ( $setting.length )
this.model.set( $setting.data('setting'), event.target.value );
},
updateChanges: function( model, options ) {
if ( options.changes )
_( options.changes ).chain().keys().each( this.update, this );
}
});
/**
* wp.media.view.Settings.AttachmentDisplay
*/
media.view.Settings.AttachmentDisplay = media.view.Settings.extend({
className: 'attachment-display-settings',
template: media.template('attachment-display-settings'),
settings: {
align: {
accepts: ['left','center','right','none'],
name: 'align',
fallback: 'none'
},
link: {
accepts: ['post','file','none'],
name: 'urlbutton',
fallback: 'post'
},
size: {
// @todo: Dynamically generate these.
accepts: ['thumbnail','medium','large','full'],
name: 'imgsize',
fallback: 'medium'
}
}
});
/**
* wp.media.view.Settings.Gallery
*/
media.view.Settings.Gallery = media.view.Settings.extend({
className: 'gallery-settings',
template: media.template('gallery-settings'),
settings: {
columns: {
accepts: _.invoke( _.range( 1, 10 ), 'toString' ),
fallback: '3',
type: 'select'
},
link: {
accepts: ['post','file'],
fallback: 'post'
}
}
});
/**
* wp.media.view.Attachment.Details
*/
media.view.Attachment.Details = media.view.Attachment.extend({
tagName: 'div',
className: 'attachment-details',
template: media.template('attachment-details'),
events: {
'change .describe': 'describe'
}
});
}(jQuery));