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Mini Shell
Mini Shell
/* global jQuery, _,i18nRwmbMedia */
window.rwmb = window.rwmb || {};
jQuery( function ( $ ) {
'use strict';
var views = rwmb.views = rwmb.views || {},
models = rwmb.models = rwmb.models || {},
media = wp.media,
MediaFrame = media.view.MediaFrame,
MediaCollection, Controller, MediaField, MediaList, MediaItem, MediaButton, MediaStatus, EditMedia,
MediaDetails, MediaLibrary, MediaSelect;
MediaCollection = models.MediaCollection = media.model.Attachments.extend( {
initialize: function ( models, options ) {
this.controller = options.controller || new models.Controller;
this.on( 'add remove reset', function () {
var max = this.controller.get( 'maxFiles' );
this.controller.set( 'length', this.length );
this.controller.set( 'full', max > 0 && this.length >= max );
} );
media.model.Attachments.prototype.initialize.call( this, models, options );
},
add: function ( models, options ) {
var max = this.controller.get( 'maxFiles' ),
left = max - this.length;
if ( max > 0 && left <= 0 ) {
return this;
}
if( models) {
if ( ! models.hasOwnProperty( 'length' ) ) {
models = [models];
} else if ( models instanceof media.model.Attachments ) {
models = models.models;
}
}
if ( left > 0 ) {
models = _.difference( models, this.models );
models = _.first( models, left );
}
return media.model.Attachments.prototype.add.call( this, models, options );
},
remove: function ( models, options ) {
models = media.model.Attachments.prototype.remove.call( this, models, options );
if ( this.controller.get( 'forceDelete' ) === true ) {
models = ! _.isArray( models ) ? [models] : models;
_.each( models, function ( model ) {
model.destroy();
} );
}
},
destroyAll: function () {
_.each( _.clone( this.models ), function ( model ) {
model.destroy();
} );
}
} );
/***
* Controller Model
* Manages data of media field and media models. Most of the media views will use this to manage the media
*/
Controller = models.Controller = Backbone.Model.extend( {
//Default options
defaults: {
maxFiles: 0,
ids: [],
mimeType: '',
forceDelete: false,
maxStatus: true,
length: 0
},
//Initialize Controller model
initialize: function () {
// All numbers, no 0 ids
this.set( 'ids', _.without( _.map( this.get( 'ids' ), Number ), 0, - 1 ) );
// Create items collection
this.set( 'items', new MediaCollection( [], {controller: this} ) );
// Listen for destroy event on controller, delete all models when triggered
this.on( 'destroy', function () {
if ( this.get( 'forceDelete' ) ) {
this.get( 'items' ).destroyAll();
}
} );
},
// Load initial media
load: function () {
if ( _.isEmpty( this.get( 'ids' ) ) ) {
return;
}
this.get( 'items' ).props.set( {
query: true,
include: this.get( 'ids' ),
orderby: 'post__in',
order: 'ASC',
type: this.get( 'mimeType' ),
perPage: this.get( 'maxFiles' ) || - 1
} );
// Get more then trigger ready
this.get( 'items' ).more();
}
} );
/***
* MediaField
* Sets up media field view and subviews
*/
MediaField = views.MediaField = Backbone.View.extend( {
className: 'rwmb-media-view',
initialize: function ( options ) {
var that = this,
fieldName = options.input.name;
this.$input = $( options.input );
if ( 1 != this.$input.attr( 'data-single-image' ) ) {
fieldName += '[]';
}
this.controller = new Controller( _.extend(
{
fieldName: fieldName,
ids: this.$input.val().split( ',' )
},
this.$input.data( 'options' )
) );
// Create views
this.createList();
this.createAddButton();
this.createStatus();
// Render
this.render();
// Load media
this.controller.load();
// Listen for destroy event on input
this.$input.on( 'remove', function () {
that.controller.destroy();
} );
this.$input.on( 'media:reset', function() {
that.controller.get( 'items' ).reset();
} );
this.controller.get( 'items' ).on( 'add remove reset', _.debounce( function () {
that.$input.trigger( 'change', [that.$( '.rwmb-media-input' )] );
}, 500 ) );
this.controller.get( 'items' ).on( 'remove', _.debounce( function () {
that.$input.val( '' );
}, 500 ) );
},
// Creates media list
createList: function () {
this.list = new MediaList( {controller: this.controller} );
},
// Creates button that adds media
createAddButton: function () {
this.addButton = new MediaButton( {controller: this.controller} );
},
// Creates status
createStatus: function () {
this.status = new MediaStatus( {controller: this.controller} );
},
// Render field and adds sub fields
render: function () {
// Empty then add parts
this.$el.empty().append(
this.list.el,
this.status.el,
this.addButton.el
);
}
} );
/***
* Media List
* lists media
*/
MediaList = views.MediaList = Backbone.View.extend( {
tagName: 'ul',
className: 'rwmb-media-list',
initialize: function ( options ) {
this.controller = options.controller;
this.collection = this.controller.get( 'items' );
this.itemView = options.itemView || MediaItem;
this.getItemView = _.memoize( function ( item ) {
var itemView = new this.itemView( {
model: item,
controller: this.controller
} );
this.listenToItemView( itemView );
return itemView;
},
function ( item ) {
return item.cid;
} );
this.listenTo( this.collection, 'add', this.addItemView );
this.listenTo( this.collection, 'remove', this.removeItemView );
this.listenTo( this.collection, 'reset', this.resetItemViews );
// Sort media using sortable
this.initSortable();
},
listenToItemView: function ( itemView ) {
this.listenTo( itemView, 'click:remove', this.removeItem );
this.listenTo( itemView, 'click:switch', this.switchItem );
this.listenTo( itemView, 'click:edit', this.editItem );
},
//Add item view
addItemView: function ( item ) {
var index = this.collection.indexOf( item ),
itemEl = this.getItemView( item ).el;
if ( 0 >= index ) {
this.$el.prepend( itemEl );
}
else if ( this.$el.children().length <= index ) {
this.$el.append( itemEl )
}
else {
this.$el.children().eq( index - 1 ).after( itemEl );
}
},
// Remove item view
removeItemView: function ( item ) {
this.getItemView( item ).$el.detach();
},
removeItem: function ( item ) {
this.collection.remove( item );
},
resetItemViews: function( items, options ){
var that = this;
_.each( options.previousModels, function( item ){
that.removeItemView( item );
} );
items.each( function( item ) {
that.addItemView( item );
} );
},
switchItem: function ( item ) {
if ( this._switchFrame ) {
//this.stopListening( this._frame );
this._switchFrame.dispose();
}
this._switchFrame = new MediaSelect( {
className: 'media-frame rwmb-media-frame',
multiple: false,
title: i18nRwmbMedia.select,
editing: true,
library: {
type: this.controller.get( 'mimeType' )
},
edit: this.controller.get( 'items' )
} );
this._switchFrame.on( 'select', function () {
var selection = this._switchFrame.state().get( 'selection' ),
collection = this.collection,
index = collection.indexOf( item );
if ( ! _.isEmpty( selection ) ) {
collection.remove( item );
collection.add( selection, {at: index} );
}
}, this );
this._switchFrame.open();
return false;
},
editItem: function ( item ) {
// Destroy the previous collection frame.
if ( this._editFrame ) {
//this.stopListening( this._frame );
this._editFrame.dispose();
}
// Trigger the media frame to open the correct item
this._editFrame = new EditMedia( {
frame: 'edit-attachments',
controller: {
// Needed to trick Edit modal to think there is a gridRouter
gridRouter: {
navigate: function ( destination ) {
},
baseUrl: function ( url ) {
}
}
},
library: this.collection,
model: item
} );
this._editFrame.open();
},
initSortable: function () {
var collection = this.controller.get( 'items' );
this.$el.sortable( {
// Clone the element and the clone will be dragged. Prevent trigger click on the image, which means reselect.
helper : 'clone',
// Record the initial `index` of the dragged model.
start: function ( event, ui ) {
ui.item.data( 'sortableIndexStart', 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( ui.item.data( 'sortableIndexStart' ) );
// Silently shift the model to its new index.
collection.remove( model, {
silent: true
} );
collection.add( model, {
silent: true,
at: ui.item.index()
} );
// Fire the `reset` event to ensure other collections sync.
collection.trigger( 'reset', collection );
}
} );
}
} );
/***
* MediaStatus view.
* Show number of selected/uploaded files and number of files remain if "maxStatus" parameter is true.
*/
MediaStatus = views.MediaStatus = Backbone.View.extend( {
tagName: 'div',
className: 'rwmb-media-status',
template: wp.template( 'rwmb-media-status' ),
initialize: function ( options ) {
this.controller = options.controller;
// Auto hide if maxStatus is false
if ( ! this.controller.get( 'maxStatus' ) ) {
this.$el.hide();
return;
}
// Re-render if changes happen in controller
this.listenTo( this.controller.get( 'items' ), 'update', this.render );
this.listenTo( this.controller.get( 'items' ), 'reset', this.render );
// Render
this.render();
},
render: function () {
var attributes = _.clone( this.controller.attributes );
this.$el.html( this.template( attributes ) );
}
} );
/***
* Media Button
* Selects and adds media to controller
*/
MediaButton = views.MediaButton = Backbone.View.extend( {
tagName: 'div',
className: 'rwmb-media-add',
template: wp.template( 'rwmb-media-button' ),
events: {
'click .button': function () {
// Destroy the previous collection frame.
if ( this._frame ) {
//this.stopListening( this._frame );
this._frame.dispose();
}
var maxFiles = this.controller.get( 'maxFiles' );
this._frame = new MediaSelect( {
className: 'media-frame rwmb-media-frame',
multiple: maxFiles > 1 || maxFiles <= 0 ? 'add' : false,
title: i18nRwmbMedia.select,
editing: true,
library: {
type: this.controller.get( 'mimeType' )
},
edit: this.controller.get( 'items' )
} );
this._frame.on( 'select', function () {
var selection = this._frame.state().get( 'selection' );
this.controller.get( 'items' ).add( selection.models );
}, this );
this._frame.open();
}
},
render: function () {
this.$el.html( this.template( {text: i18nRwmbMedia.add} ) );
return this;
},
initialize: function ( options ) {
this.controller = options.controller;
this.collection = this.controller.get( 'items' );
// Auto hide if you reach the max number of media
this.listenTo( this.controller, 'change:full', function () {
this.$el.toggle( ! this.controller.get( 'full' ) );
} );
this.render();
}
} );
/***
* MediaItem
* View for individual media items
*/
MediaItem = views.MediaItem = Backbone.View.extend( {
tagName: 'li',
className: 'rwmb-media-item attachment',
template: wp.template( 'rwmb-media-item' ),
initialize: function ( options ) {
this.controller = options.controller;
this.render();
this.listenTo( this.model, 'change', function () {
this.render();
} );
this.$el.data( 'id', this.model.cid );
},
events: {
'click .rwmb-overlay': function () {
this.trigger( 'click:switch', this.model );
return false;
},
// Event when remove button clicked
'click .rwmb-remove-media': function () {
this.trigger( 'click:remove', this.model );
return false;
},
'click .rwmb-edit-media': function () {
this.trigger( 'click:edit', this.model );
return false;
}
},
render: function () {
var attrs = _.clone( this.model.attributes );
attrs.controller = _.clone( this.controller.attributes );
this.$el.html( this.template( attrs ) );
return this;
}
} );
/**
* Extend media frames to make things work right
*/
/**
* MediaDetails
* Custom version of TwoColumn view to prevent all video and audio from being unset
*/
MediaDetails = views.MediaDetails = media.view.Attachment.Details.TwoColumn.extend( {
render: function () {
var that = this;
media.view.Attachment.Details.prototype.render.apply( this, arguments );
this.players = this.players || [];
media.mixin.unsetPlayers.call( this );
this.$( 'audio, video' ).each( function ( i, elem ) {
var el = media.view.MediaDetails.prepareSrc( elem );
that.players.push( new window.MediaElementPlayer( el, media.mixin.mejsSettings ) );
} );
}
} );
/**
* MediaLibrary
* Custom version of Library to exclude already selected media in a media frame
*/
MediaLibrary = media.controller.Library.extend( {
defaults: _.defaults( {
multiple: 'add',
filterable: 'uploaded',
priority: 100,
syncSelection: false
}, media.controller.Library.prototype.defaults ),
activate: function () {
var library = this.get( 'library' ),
edit = this.frame.options.edit;
if ( this.editLibrary && this.editLibrary !== edit ) {
library.unobserve( this.editLibrary );
}
// Accepts attachments that exist in the original library and
// that do not exist in gallery's library.
library.validator = function ( attachment ) {
return ! ! this.mirroring.get( attachment.cid ) && ! edit.get( attachment.cid ) && media.model.Selection.prototype.validator.apply( this, arguments );
};
// Reset the library to ensure that all attachments are re-added
// to the collection. Do so silently, as calling `observe` will
// trigger the `reset` event.
library.reset( library.mirroring.models, {silent: true} );
library.observe( edit );
this.editLibrary = edit;
media.controller.Library.prototype.activate.apply( this, arguments );
}
} );
/**
* MediaSelect
* Custom version of Select media frame that uses MediaLibrary
*/
MediaSelect = views.MediaSelect = MediaFrame.Select.extend( {
/**
* Create the default states on the frame.
*/
createStates: function () {
var options = this.options;
if ( this.options.states ) {
return;
}
// Add the default states.
this.states.add( [
// Main states.
new MediaLibrary( {
library: media.query( options.library ),
multiple: options.multiple,
title: options.title,
priority: 20
} )
] );
}
} );
/***
* EditMedia
* Custom version of EditAttachments frame to prevent all video and audio from being unset
*/
EditMedia = views.EditMedia = MediaFrame.EditAttachments.extend( {
/**
* Content region rendering callback for the `edit-metadata` mode.
*
* @param {Object} contentRegion Basic object with a `view` property, which
* should be set with the proper region view.
*/
editMetadataMode: function ( contentRegion ) {
contentRegion.view = new MediaDetails( {
controller: this,
model: this.model
} );
/**
* Attach a subview to display fields added via the
* `attachment_fields_to_edit` filter.
*/
contentRegion.view.views.set( '.attachment-compat', new media.view.AttachmentCompat( {
controller: this,
model: this.model
} ) );
}
} );
/**
* Initialize media fields
* @return void
*/
function initMediaField() {
var view = new MediaField( { input: this } );
//Remove old then add new
$( this ).siblings( 'div.rwmb-media-view' ).remove();
$( this ).after( view.el );
}
$( '.rwmb-file_advanced' ).each( initMediaField );
$( document ).on( 'clone', '.rwmb-file_advanced', initMediaField );
} );
Zerion Mini Shell 1.0