wp-admin/js/widgets/media-widgets.js
/**
* @output wp-admin/js/widgets/media-widgets.js
*/
/* eslint consistent-this: [ "error", "control" ] */
/**
* @namespace wp.mediaWidgets
* @memberOf wp
*/
wp.mediaWidgets = ( function( $ ) {
'use strict';
var component = {};
/**
* Widget control (view) constructors, mapping widget id_base to subclass of MediaWidgetControl.
*
* Media widgets register themselves by assigning subclasses of MediaWidgetControl onto this object by widget ID base.
*
* @memberOf wp.mediaWidgets
*
* @type {Object.<string, wp.mediaWidgets.MediaWidgetModel>}
*/
component.controlConstructors = {};
/**
* Widget model constructors, mapping widget id_base to subclass of MediaWidgetModel.
*
* Media widgets register themselves by assigning subclasses of MediaWidgetControl onto this object by widget ID base.
*
* @memberOf wp.mediaWidgets
*
* @type {Object.<string, wp.mediaWidgets.MediaWidgetModel>}
*/
component.modelConstructors = {};
component.PersistentDisplaySettingsLibrary = wp.media.controller.Library.extend(/** @lends wp.mediaWidgets.PersistentDisplaySettingsLibrary.prototype */{
/**
* Library which persists the customized display settings across selections.
*
* @constructs wp.mediaWidgets.PersistentDisplaySettingsLibrary
* @augments wp.media.controller.Library
*
* @param {Object} options - Options.
*
* @return {void}
*/
initialize: function initialize( options ) {
_.bindAll( this, 'handleDisplaySettingChange' );
wp.media.controller.Library.prototype.initialize.call( this, options );
},
/**
* Sync changes to the current display settings back into the current customized.
*
* @param {Backbone.Model} displaySettings - Modified display settings.
* @return {void}
*/
handleDisplaySettingChange: function handleDisplaySettingChange( displaySettings ) {
this.get( 'selectedDisplaySettings' ).set( displaySettings.attributes );
},
/**
* Get the display settings model.
*
* Model returned is updated with the current customized display settings,
* and an event listener is added so that changes made to the settings
* will sync back into the model storing the session's customized display
* settings.
*
* @param {Backbone.Model} model - Display settings model.
* @return {Backbone.Model} Display settings model.
*/
display: function getDisplaySettingsModel( model ) {
var display, selectedDisplaySettings = this.get( 'selectedDisplaySettings' );
display = wp.media.controller.Library.prototype.display.call( this, model );
display.off( 'change', this.handleDisplaySettingChange ); // Prevent duplicated event handlers.
display.set( selectedDisplaySettings.attributes );
if ( 'custom' === selectedDisplaySettings.get( 'link_type' ) ) {
display.linkUrl = selectedDisplaySettings.get( 'link_url' );
}
display.on( 'change', this.handleDisplaySettingChange );
return display;
}
});
/**
* Extended view for managing the embed UI.
*
* @class wp.mediaWidgets.MediaEmbedView
* @augments wp.media.view.Embed
*/
component.MediaEmbedView = wp.media.view.Embed.extend(/** @lends wp.mediaWidgets.MediaEmbedView.prototype */{
/**
* Initialize.
*
* @since 4.9.0
*
* @param {Object} options - Options.
* @return {void}
*/
initialize: function( options ) {
var view = this, embedController; // eslint-disable-line consistent-this
wp.media.view.Embed.prototype.initialize.call( view, options );
if ( 'image' !== view.controller.options.mimeType ) {
embedController = view.controller.states.get( 'embed' );
embedController.off( 'scan', embedController.scanImage, embedController );
}
},
/**
* Refresh embed view.
*
* Forked override of {wp.media.view.Embed#refresh()} to suppress irrelevant "link text" field.
*
* @return {void}
*/
refresh: function refresh() {
/**
* @class wp.mediaWidgets~Constructor
*/
var Constructor;
if ( 'image' === this.controller.options.mimeType ) {
Constructor = wp.media.view.EmbedImage;
} else {
// This should be eliminated once #40450 lands of when this is merged into core.
Constructor = wp.media.view.EmbedLink.extend(/** @lends wp.mediaWidgets~Constructor.prototype */{
/**
* Set the disabled state on the Add to Widget button.
*
* @param {boolean} disabled - Disabled.
* @return {void}
*/
setAddToWidgetButtonDisabled: function setAddToWidgetButtonDisabled( disabled ) {
this.views.parent.views.parent.views.get( '.media-frame-toolbar' )[0].$el.find( '.media-button-select' ).prop( 'disabled', disabled );
},
/**
* Set or clear an error notice.
*
* @param {string} notice - Notice.
* @return {void}
*/
setErrorNotice: function setErrorNotice( notice ) {
var embedLinkView = this, noticeContainer; // eslint-disable-line consistent-this
noticeContainer = embedLinkView.views.parent.$el.find( '> .notice:first-child' );
if ( ! notice ) {
if ( noticeContainer.length ) {
noticeContainer.slideUp( 'fast' );
}
} else {
if ( ! noticeContainer.length ) {
noticeContainer = $( '<div class="media-widget-embed-notice notice notice-error notice-alt" role="alert"></div>' );
noticeContainer.hide();
embedLinkView.views.parent.$el.prepend( noticeContainer );
}
noticeContainer.empty();
noticeContainer.append( $( '<p>', {
html: notice
}));
noticeContainer.slideDown( 'fast' );
}
},
/**
* Update oEmbed.
*
* @since 4.9.0
*
* @return {void}
*/
updateoEmbed: function() {
var embedLinkView = this, url; // eslint-disable-line consistent-this
url = embedLinkView.model.get( 'url' );
// Abort if the URL field was emptied out.
if ( ! url ) {
embedLinkView.setErrorNotice( '' );
embedLinkView.setAddToWidgetButtonDisabled( true );
return;
}
if ( ! url.match( /^(http|https):\/\/.+\// ) ) {
embedLinkView.controller.$el.find( '#embed-url-field' ).addClass( 'invalid' );
embedLinkView.setAddToWidgetButtonDisabled( true );
}
wp.media.view.EmbedLink.prototype.updateoEmbed.call( embedLinkView );
},
/**
* Fetch media.
*
* @return {void}
*/
fetch: function() {
var embedLinkView = this, fetchSuccess, matches, fileExt, urlParser, url, re, youTubeEmbedMatch; // eslint-disable-line consistent-this
url = embedLinkView.model.get( 'url' );
if ( embedLinkView.dfd && 'pending' === embedLinkView.dfd.state() ) {
embedLinkView.dfd.abort();
}
fetchSuccess = function( response ) {
embedLinkView.renderoEmbed({
data: {
body: response
}
});
embedLinkView.controller.$el.find( '#embed-url-field' ).removeClass( 'invalid' );
embedLinkView.setErrorNotice( '' );
embedLinkView.setAddToWidgetButtonDisabled( false );
};
urlParser = document.createElement( 'a' );
urlParser.href = url;
matches = urlParser.pathname.toLowerCase().match( /\.(\w+)$/ );
if ( matches ) {
fileExt = matches[1];
if ( ! wp.media.view.settings.embedMimes[ fileExt ] ) {
embedLinkView.renderFail();
} else if ( 0 !== wp.media.view.settings.embedMimes[ fileExt ].indexOf( embedLinkView.controller.options.mimeType ) ) {
embedLinkView.renderFail();
} else {
fetchSuccess( '<!--success-->' );
}
return;
}
// Support YouTube embed links.
re = /https?:\/\/www\.youtube\.com\/embed\/([^/]+)/;
youTubeEmbedMatch = re.exec( url );
if ( youTubeEmbedMatch ) {
url = 'https://www.youtube.com/watch?v=' + youTubeEmbedMatch[ 1 ];
// silently change url to proper oembed-able version.
embedLinkView.model.attributes.url = url;
}
embedLinkView.dfd = wp.apiRequest({
url: wp.media.view.settings.oEmbedProxyUrl,
data: {
url: url,
maxwidth: embedLinkView.model.get( 'width' ),
maxheight: embedLinkView.model.get( 'height' ),
discover: false
},
type: 'GET',
dataType: 'json',
context: embedLinkView
});
embedLinkView.dfd.done( function( response ) {
if ( embedLinkView.controller.options.mimeType !== response.type ) {
embedLinkView.renderFail();
return;
}
fetchSuccess( response.html );
});
embedLinkView.dfd.fail( _.bind( embedLinkView.renderFail, embedLinkView ) );
},
/**
* Handle render failure.
*
* Overrides the {EmbedLink#renderFail()} method to prevent showing the "Link Text" field.
* The element is getting display:none in the stylesheet, but the underlying method uses
* uses {jQuery.fn.show()} which adds an inline style. This avoids the need for !important.
*
* @return {void}
*/
renderFail: function renderFail() {
var embedLinkView = this; // eslint-disable-line consistent-this
embedLinkView.controller.$el.find( '#embed-url-field' ).addClass( 'invalid' );
embedLinkView.setErrorNotice( embedLinkView.controller.options.invalidEmbedTypeError || 'ERROR' );
embedLinkView.setAddToWidgetButtonDisabled( true );
}
});
}
this.settings( new Constructor({
controller: this.controller,
model: this.model.props,
priority: 40
}));
}
});
/**
* Custom media frame for selecting uploaded media or providing media by URL.
*
* @class wp.mediaWidgets.MediaFrameSelect
* @augments wp.media.view.MediaFrame.Post
*/
component.MediaFrameSelect = wp.media.view.MediaFrame.Post.extend(/** @lends wp.mediaWidgets.MediaFrameSelect.prototype */{
/**
* Create the default states.
*
* @return {void}
*/
createStates: function createStates() {
var mime = this.options.mimeType, specificMimes = [];
_.each( wp.media.view.settings.embedMimes, function( embedMime ) {
if ( 0 === embedMime.indexOf( mime ) ) {
specificMimes.push( embedMime );
}
});
if ( specificMimes.length > 0 ) {
mime = specificMimes;
}
this.states.add([
// Main states.
new component.PersistentDisplaySettingsLibrary({
id: 'insert',
title: this.options.title,
selection: this.options.selection,
priority: 20,
toolbar: 'main-insert',
filterable: 'dates',
library: wp.media.query({
type: mime
}),
multiple: false,
editable: true,
selectedDisplaySettings: this.options.selectedDisplaySettings,
displaySettings: _.isUndefined( this.options.showDisplaySettings ) ? true : this.options.showDisplaySettings,
displayUserSettings: false // We use the display settings from the current/default widget instance props.
}),
new wp.media.controller.EditImage({ model: this.options.editImage }),
// Embed states.
new wp.media.controller.Embed({
metadata: this.options.metadata,
type: 'image' === this.options.mimeType ? 'image' : 'link',
invalidEmbedTypeError: this.options.invalidEmbedTypeError
})
]);
},
/**
* Main insert toolbar.
*
* Forked override of {wp.media.view.MediaFrame.Post#mainInsertToolbar()} to override text.
*
* @param {wp.Backbone.View} view - Toolbar view.
* @this {wp.media.controller.Library}
* @return {void}
*/
mainInsertToolbar: function mainInsertToolbar( view ) {
var controller = this; // eslint-disable-line consistent-this
view.set( 'insert', {
style: 'primary',
priority: 80,
text: controller.options.text, // The whole reason for the fork.
requires: { selection: true },
/**
* Handle click.
*
* @ignore
*
* @fires wp.media.controller.State#insert()
* @return {void}
*/
click: function onClick() {
var state = controller.state(),
selection = state.get( 'selection' );
controller.close();
state.trigger( 'insert', selection ).reset();
}
});
},
/**
* Main embed toolbar.
*
* Forked override of {wp.media.view.MediaFrame.Post#mainEmbedToolbar()} to override text.
*
* @param {wp.Backbone.View} toolbar - Toolbar view.
* @this {wp.media.controller.Library}
* @return {void}
*/
mainEmbedToolbar: function mainEmbedToolbar( toolbar ) {
toolbar.view = new wp.media.view.Toolbar.Embed({
controller: this,
text: this.options.text,
event: 'insert'
});
},
/**
* Embed content.
*
* Forked override of {wp.media.view.MediaFrame.Post#embedContent()} to suppress irrelevant "link text" field.
*
* @return {void}
*/
embedContent: function embedContent() {
var view = new component.MediaEmbedView({
controller: this,
model: this.state()
}).render();
this.content.set( view );
}
});
component.MediaWidgetControl = Backbone.View.extend(/** @lends wp.mediaWidgets.MediaWidgetControl.prototype */{
/**
* Translation strings.
*
* The mapping of translation strings is handled by media widget subclasses,
* exported from PHP to JS such as is done in WP_Widget_Media_Image::enqueue_admin_scripts().
*
* @type {Object}
*/
l10n: {
add_to_widget: '{{add_to_widget}}',
add_media: '{{add_media}}'
},
/**
* Widget ID base.
*
* This may be defined by the subclass. It may be exported from PHP to JS
* such as is done in WP_Widget_Media_Image::enqueue_admin_scripts(). If not,
* it will attempt to be discovered by looking to see if this control
* instance extends each member of component.controlConstructors, and if
* it does extend one, will use the key as the id_base.
*
* @type {string}
*/
id_base: '',
/**
* Mime type.
*
* This must be defined by the subclass. It may be exported from PHP to JS
* such as is done in WP_Widget_Media_Image::enqueue_admin_scripts().
*
* @type {string}
*/
mime_type: '',
/**
* View events.
*
* @type {Object}
*/
events: {
'click .notice-missing-attachment a': 'handleMediaLibraryLinkClick',
'click .select-media': 'selectMedia',
'click .placeholder': 'selectMedia',
'click .edit-media': 'editMedia'
},
/**
* Show display settings.
*
* @type {boolean}
*/
showDisplaySettings: true,
/**
* Media Widget Control.
*
* @constructs wp.mediaWidgets.MediaWidgetControl
* @augments Backbone.View
* @abstract
*
* @param {Object} options - Options.
* @param {Backbone.Model} options.model - Model.
* @param {jQuery} options.el - Control field container element.
* @param {jQuery} options.syncContainer - Container element where fields are synced for the server.
*
* @return {void}
*/
initialize: function initialize( options ) {
var control = this;
Backbone.View.prototype.initialize.call( control, options );
if ( ! ( control.model instanceof component.MediaWidgetModel ) ) {
throw new Error( 'Missing options.model' );
}
if ( ! options.el ) {
throw new Error( 'Missing options.el' );
}
if ( ! options.syncContainer ) {
throw new Error( 'Missing options.syncContainer' );
}
control.syncContainer = options.syncContainer;
control.$el.addClass( 'media-widget-control' );
// Allow methods to be passed in with control context preserved.
_.bindAll( control, 'syncModelToInputs', 'render', 'updateSelectedAttachment', 'renderPreview' );
if ( ! control.id_base ) {
_.find( component.controlConstructors, function( Constructor, idBase ) {
if ( control instanceof Constructor ) {
control.id_base = idBase;
return true;
}
return false;
});
if ( ! control.id_base ) {
throw new Error( 'Missing id_base.' );
}
}
// Track attributes needed to renderPreview in it's own model.
control.previewTemplateProps = new Backbone.Model( control.mapModelToPreviewTemplateProps() );
// Re-render the preview when the attachment changes.
control.selectedAttachment = new wp.media.model.Attachment();
control.renderPreview = _.debounce( control.renderPreview );
control.listenTo( control.previewTemplateProps, 'change', control.renderPreview );
// Make sure a copy of the selected attachment is always fetched.
control.model.on( 'change:attachment_id', control.updateSelectedAttachment );
control.model.on( 'change:url', control.updateSelectedAttachment );
control.updateSelectedAttachment();
/*
* Sync the widget instance model attributes onto the hidden inputs that widgets currently use to store the state.
* In the future, when widgets are JS-driven, the underlying widget instance data should be exposed as a model
* from the start, without having to sync with hidden fields. See <https://core.trac.wordpress.org/ticket/33507>.
*/
control.listenTo( control.model, 'change', control.syncModelToInputs );
control.listenTo( control.model, 'change', control.syncModelToPreviewProps );
control.listenTo( control.model, 'change', control.render );
// Update the title.
control.$el.on( 'input change', '.title', function updateTitle() {
control.model.set({
title: $( this ).val().trim()
});
});
// Update link_url attribute.
control.$el.on( 'input change', '.link', function updateLinkUrl() {
var linkUrl = $( this ).val().trim(), linkType = 'custom';
if ( control.selectedAttachment.get( 'linkUrl' ) === linkUrl || control.selectedAttachment.get( 'link' ) === linkUrl ) {
linkType = 'post';
} else if ( control.selectedAttachment.get( 'url' ) === linkUrl ) {
linkType = 'file';
}
control.model.set( {
link_url: linkUrl,
link_type: linkType
});
// Update display settings for the next time the user opens to select from the media library.
control.displaySettings.set( {
link: linkType,
linkUrl: linkUrl
});
});
/*
* Copy current display settings from the widget model to serve as basis
* of customized display settings for the current media frame session.
* Changes to display settings will be synced into this model, and
* when a new selection is made, the settings from this will be synced
* into that AttachmentDisplay's model to persist the setting changes.
*/
control.displaySettings = new Backbone.Model( _.pick(
control.mapModelToMediaFrameProps(
_.extend( control.model.defaults(), control.model.toJSON() )
),
_.keys( wp.media.view.settings.defaultProps )
) );
},
/**
* Update the selected attachment if necessary.
*
* @return {void}
*/
updateSelectedAttachment: function updateSelectedAttachment() {
var control = this, attachment;
if ( 0 === control.model.get( 'attachment_id' ) ) {
control.selectedAttachment.clear();
control.model.set( 'error', false );
} else if ( control.model.get( 'attachment_id' ) !== control.selectedAttachment.get( 'id' ) ) {
attachment = new wp.media.model.Attachment({
id: control.model.get( 'attachment_id' )
});
attachment.fetch()
.done( function done() {
control.model.set( 'error', false );
control.selectedAttachment.set( attachment.toJSON() );
})
.fail( function fail() {
control.model.set( 'error', 'missing_attachment' );
});
}
},
/**
* Sync the model attributes to the hidden inputs, and update previewTemplateProps.
*
* @return {void}
*/
syncModelToPreviewProps: function syncModelToPreviewProps() {
var control = this;
control.previewTemplateProps.set( control.mapModelToPreviewTemplateProps() );
},
/**
* Sync the model attributes to the hidden inputs, and update previewTemplateProps.
*
* @return {void}
*/
syncModelToInputs: function syncModelToInputs() {
var control = this;
control.syncContainer.find( '.media-widget-instance-property' ).each( function() {
var input = $( this ), value, propertyName;
propertyName = input.data( 'property' );
value = control.model.get( propertyName );
if ( _.isUndefined( value ) ) {
return;
}
if ( 'array' === control.model.schema[ propertyName ].type && _.isArray( value ) ) {
value = value.join( ',' );
} else if ( 'boolean' === control.model.schema[ propertyName ].type ) {
value = value ? '1' : ''; // Because in PHP, strval( true ) === '1' && strval( false ) === ''.
} else {
value = String( value );
}
if ( input.val() !== value ) {
input.val( value );
input.trigger( 'change' );
}
});
},
/**
* Get template.
*
* @return {Function} Template.
*/
template: function template() {
var control = this;
if ( ! $( '#tmpl-widget-media-' + control.id_base + '-control' ).length ) {
throw new Error( 'Missing widget control template for ' + control.id_base );
}
return wp.template( 'widget-media-' + control.id_base + '-control' );
},
/**
* Render template.
*
* @return {void}
*/
render: function render() {
var control = this, titleInput;
if ( ! control.templateRendered ) {
control.$el.html( control.template()( control.model.toJSON() ) );
control.renderPreview(); // Hereafter it will re-render when control.selectedAttachment changes.
control.templateRendered = true;
}
titleInput = control.$el.find( '.title' );
if ( ! titleInput.is( document.activeElement ) ) {
titleInput.val( control.model.get( 'title' ) );
}
control.$el.toggleClass( 'selected', control.isSelected() );
},
/**
* Render media preview.
*
* @abstract
* @return {void}
*/
renderPreview: function renderPreview() {
throw new Error( 'renderPreview must be implemented' );
},
/**
* Whether a media item is selected.
*
* @return {boolean} Whether selected and no error.
*/
isSelected: function isSelected() {
var control = this;
if ( control.model.get( 'error' ) ) {
return false;
}
return Boolean( control.model.get( 'attachment_id' ) || control.model.get( 'url' ) );
},
/**
* Handle click on link to Media Library to open modal, such as the link that appears when in the missing attachment error notice.
*
* @param {jQuery.Event} event - Event.
* @return {void}
*/
handleMediaLibraryLinkClick: function handleMediaLibraryLinkClick( event ) {
var control = this;
event.preventDefault();
control.selectMedia();
},
/**
* Open the media select frame to chose an item.
*
* @return {void}
*/
selectMedia: function selectMedia() {
var control = this, selection, mediaFrame, defaultSync, mediaFrameProps, selectionModels = [];
if ( control.isSelected() && 0 !== control.model.get( 'attachment_id' ) ) {
selectionModels.push( control.selectedAttachment );
}
selection = new wp.media.model.Selection( selectionModels, { multiple: false } );
mediaFrameProps = control.mapModelToMediaFrameProps( control.model.toJSON() );
if ( mediaFrameProps.size ) {
control.displaySettings.set( 'size', mediaFrameProps.size );
}
mediaFrame = new component.MediaFrameSelect({
title: control.l10n.add_media,
frame: 'post',
text: control.l10n.add_to_widget,
selection: selection,
mimeType: control.mime_type,
selectedDisplaySettings: control.displaySettings,
showDisplaySettings: control.showDisplaySettings,
metadata: mediaFrameProps,
state: control.isSelected() && 0 === control.model.get( 'attachment_id' ) ? 'embed' : 'insert',
invalidEmbedTypeError: control.l10n.unsupported_file_type
});
wp.media.frame = mediaFrame; // See wp.media().
// Handle selection of a media item.
mediaFrame.on( 'insert', function onInsert() {
var attachment = {}, state = mediaFrame.state();
// Update cached attachment object to avoid having to re-fetch. This also triggers re-rendering of preview.
if ( 'embed' === state.get( 'id' ) ) {
_.extend( attachment, { id: 0 }, state.props.toJSON() );
} else {
_.extend( attachment, state.get( 'selection' ).first().toJSON() );
}
control.selectedAttachment.set( attachment );
control.model.set( 'error', false );
// Update widget instance.
control.model.set( control.getModelPropsFromMediaFrame( mediaFrame ) );
});
// Disable syncing of attachment changes back to server (except for deletions). See <https://core.trac.wordpress.org/ticket/40403>.
defaultSync = wp.media.model.Attachment.prototype.sync;
wp.media.model.Attachment.prototype.sync = function( method ) {
if ( 'delete' === method ) {
return defaultSync.apply( this, arguments );
} else {
return $.Deferred().rejectWith( this ).promise();
}
};
mediaFrame.on( 'close', function onClose() {
wp.media.model.Attachment.prototype.sync = defaultSync;
});
mediaFrame.$el.addClass( 'media-widget' );
mediaFrame.open();
// Clear the selected attachment when it is deleted in the media select frame.
if ( selection ) {
selection.on( 'destroy', function onDestroy( attachment ) {
if ( control.model.get( 'attachment_id' ) === attachment.get( 'id' ) ) {
control.model.set({
attachment_id: 0,
url: ''
});
}
});
}
/*
* Make sure focus is set inside of modal so that hitting Esc will close
* the modal and not inadvertently cause the widget to collapse in the customizer.
*/
mediaFrame.$el.find( '.media-frame-menu .media-menu-item.active' ).focus();
},
/**
* Get the instance props from the media selection frame.
*
* @param {wp.media.view.MediaFrame.Select} mediaFrame - Select frame.
* @return {Object} Props.
*/
getModelPropsFromMediaFrame: function getModelPropsFromMediaFrame( mediaFrame ) {
var control = this, state, mediaFrameProps, modelProps;
state = mediaFrame.state();
if ( 'insert' === state.get( 'id' ) ) {
mediaFrameProps = state.get( 'selection' ).first().toJSON();
mediaFrameProps.postUrl = mediaFrameProps.link;
if ( control.showDisplaySettings ) {
_.extend(
mediaFrameProps,
mediaFrame.content.get( '.attachments-browser' ).sidebar.get( 'display' ).model.toJSON()
);
}
if ( mediaFrameProps.sizes && mediaFrameProps.size && mediaFrameProps.sizes[ mediaFrameProps.size ] ) {
mediaFrameProps.url = mediaFrameProps.sizes[ mediaFrameProps.size ].url;
}
} else if ( 'embed' === state.get( 'id' ) ) {
mediaFrameProps = _.extend(
state.props.toJSON(),
{ attachment_id: 0 }, // Because some media frames use `attachment_id` not `id`.
control.model.getEmbedResetProps()
);
} else {
throw new Error( 'Unexpected state: ' + state.get( 'id' ) );
}
if ( mediaFrameProps.id ) {
mediaFrameProps.attachment_id = mediaFrameProps.id;
}
modelProps = control.mapMediaToModelProps( mediaFrameProps );
// Clear the extension prop so sources will be reset for video and audio media.
_.each( wp.media.view.settings.embedExts, function( ext ) {
if ( ext in control.model.schema && modelProps.url !== modelProps[ ext ] ) {
modelProps[ ext ] = '';
}
});
return modelProps;
},
/**
* Map media frame props to model props.
*
* @param {Object} mediaFrameProps - Media frame props.
* @return {Object} Model props.
*/
mapMediaToModelProps: function mapMediaToModelProps( mediaFrameProps ) {
var control = this, mediaFramePropToModelPropMap = {}, modelProps = {}, extension;
_.each( control.model.schema, function( fieldSchema, modelProp ) {
// Ignore widget title attribute.
if ( 'title' === modelProp ) {
return;
}
mediaFramePropToModelPropMap[ fieldSchema.media_prop || modelProp ] = modelProp;
});
_.each( mediaFrameProps, function( value, mediaProp ) {
var propName = mediaFramePropToModelPropMap[ mediaProp ] || mediaProp;
if ( control.model.schema[ propName ] ) {
modelProps[ propName ] = value;
}
});
if ( 'custom' === mediaFrameProps.size ) {
modelProps.width = mediaFrameProps.customWidth;
modelProps.height = mediaFrameProps.customHeight;
}
if ( 'post' === mediaFrameProps.link ) {
modelProps.link_url = mediaFrameProps.postUrl || mediaFrameProps.linkUrl;
} else if ( 'file' === mediaFrameProps.link ) {
modelProps.link_url = mediaFrameProps.url;
}
// Because some media frames use `id` instead of `attachment_id`.
if ( ! mediaFrameProps.attachment_id && mediaFrameProps.id ) {
modelProps.attachment_id = mediaFrameProps.id;
}
if ( mediaFrameProps.url ) {
extension = mediaFrameProps.url.replace( /#.*$/, '' ).replace( /\?.*$/, '' ).split( '.' ).pop().toLowerCase();
if ( extension in control.model.schema ) {
modelProps[ extension ] = mediaFrameProps.url;
}
}
// Always omit the titles derived from mediaFrameProps.
return _.omit( modelProps, 'title' );
},
/**
* Map model props to media frame props.
*
* @param {Object} modelProps - Model props.
* @return {Object} Media frame props.
*/
mapModelToMediaFrameProps: function mapModelToMediaFrameProps( modelProps ) {
var control = this, mediaFrameProps = {};
_.each( modelProps, function( value, modelProp ) {
var fieldSchema = control.model.schema[ modelProp ] || {};
mediaFrameProps[ fieldSchema.media_prop || modelProp ] = value;
});
// Some media frames use attachment_id.
mediaFrameProps.attachment_id = mediaFrameProps.id;
if ( 'custom' === mediaFrameProps.size ) {
mediaFrameProps.customWidth = control.model.get( 'width' );
mediaFrameProps.customHeight = control.model.get( 'height' );
}
return mediaFrameProps;
},
/**
* Map model props to previewTemplateProps.
*
* @return {Object} Preview Template Props.
*/
mapModelToPreviewTemplateProps: function mapModelToPreviewTemplateProps() {
var control = this, previewTemplateProps = {};
_.each( control.model.schema, function( value, prop ) {
if ( ! value.hasOwnProperty( 'should_preview_update' ) || value.should_preview_update ) {
previewTemplateProps[ prop ] = control.model.get( prop );
}
});
// Templates need to be aware of the error.
previewTemplateProps.error = control.model.get( 'error' );
return previewTemplateProps;
},
/**
* Open the media frame to modify the selected item.
*
* @abstract
* @return {void}
*/
editMedia: function editMedia() {
throw new Error( 'editMedia not implemented' );
}
});
/**
* Media widget model.
*
* @class wp.mediaWidgets.MediaWidgetModel
* @augments Backbone.Model
*/
component.MediaWidgetModel = Backbone.Model.extend(/** @lends wp.mediaWidgets.MediaWidgetModel.prototype */{
/**
* Id attribute.
*
* @type {string}
*/
idAttribute: 'widget_id',
/**
* Instance schema.
*
* This adheres to JSON Schema and subclasses should have their schema
* exported from PHP to JS such as is done in WP_Widget_Media_Image::enqueue_admin_scripts().
*
* @type {Object.<string, Object>}
*/
schema: {
title: {
type: 'string',
'default': ''
},
attachment_id: {
type: 'integer',
'default': 0
},
url: {
type: 'string',
'default': ''
}
},
/**
* Get default attribute values.
*
* @return {Object} Mapping of property names to their default values.
*/
defaults: function() {
var defaults = {};
_.each( this.schema, function( fieldSchema, field ) {
defaults[ field ] = fieldSchema['default'];
});
return defaults;
},
/**
* Set attribute value(s).
*
* This is a wrapped version of Backbone.Model#set() which allows us to
* cast the attribute values from the hidden inputs' string values into
* the appropriate data types (integers or booleans).
*
* @param {string|Object} key - Attribute name or attribute pairs.
* @param {mixed|Object} [val] - Attribute value or options object.
* @param {Object} [options] - Options when attribute name and value are passed separately.
* @return {wp.mediaWidgets.MediaWidgetModel} This model.
*/
set: function set( key, val, options ) {
var model = this, attrs, opts, castedAttrs; // eslint-disable-line consistent-this
if ( null === key ) {
return model;
}
if ( 'object' === typeof key ) {
attrs = key;
opts = val;
} else {
attrs = {};
attrs[ key ] = val;
opts = options;
}
castedAttrs = {};
_.each( attrs, function( value, name ) {
var type;
if ( ! model.schema[ name ] ) {
castedAttrs[ name ] = value;
return;
}
type = model.schema[ name ].type;
if ( 'array' === type ) {
castedAttrs[ name ] = value;
if ( ! _.isArray( castedAttrs[ name ] ) ) {
castedAttrs[ name ] = castedAttrs[ name ].split( /,/ ); // Good enough for parsing an ID list.
}
if ( model.schema[ name ].items && 'integer' === model.schema[ name ].items.type ) {
castedAttrs[ name ] = _.filter(
_.map( castedAttrs[ name ], function( id ) {
return parseInt( id, 10 );
},
function( id ) {
return 'number' === typeof id;
}
) );
}
} else if ( 'integer' === type ) {
castedAttrs[ name ] = parseInt( value, 10 );
} else if ( 'boolean' === type ) {
castedAttrs[ name ] = ! ( ! value || '0' === value || 'false' === value );
} else {
castedAttrs[ name ] = value;
}
});
return Backbone.Model.prototype.set.call( this, castedAttrs, opts );
},
/**
* Get props which are merged on top of the model when an embed is chosen (as opposed to an attachment).
*
* @return {Object} Reset/override props.
*/
getEmbedResetProps: function getEmbedResetProps() {
return {
id: 0
};
}
});
/**
* Collection of all widget model instances.
*
* @memberOf wp.mediaWidgets
*
* @type {Backbone.Collection}
*/
component.modelCollection = new ( Backbone.Collection.extend( {
model: component.MediaWidgetModel
}) )();
/**
* Mapping of widget ID to instances of MediaWidgetControl subclasses.
*
* @memberOf wp.mediaWidgets
*
* @type {Object.<string, wp.mediaWidgets.MediaWidgetControl>}
*/
component.widgetControls = {};
/**
* Handle widget being added or initialized for the first time at the widget-added event.
*
* @memberOf wp.mediaWidgets
*
* @param {jQuery.Event} event - Event.
* @param {jQuery} widgetContainer - Widget container element.
*
* @return {void}
*/
component.handleWidgetAdded = function handleWidgetAdded( event, widgetContainer ) {
var fieldContainer, syncContainer, widgetForm, idBase, ControlConstructor, ModelConstructor, modelAttributes, widgetControl, widgetModel, widgetId, animatedCheckDelay = 50, renderWhenAnimationDone;
widgetForm = widgetContainer.find( '> .widget-inside > .form, > .widget-inside > form' ); // Note: '.form' appears in the customizer, whereas 'form' on the widgets admin screen.
idBase = widgetForm.find( '> .id_base' ).val();
widgetId = widgetForm.find( '> .widget-id' ).val();
// Prevent initializing already-added widgets.
if ( component.widgetControls[ widgetId ] ) {
return;
}
ControlConstructor = component.controlConstructors[ idBase ];
if ( ! ControlConstructor ) {
return;
}
ModelConstructor = component.modelConstructors[ idBase ] || component.MediaWidgetModel;
/*
* Create a container element for the widget control (Backbone.View).
* This is inserted into the DOM immediately before the .widget-content
* element because the contents of this element are essentially "managed"
* by PHP, where each widget update cause the entire element to be emptied
* and replaced with the rendered output of WP_Widget::form() which is
* sent back in Ajax request made to save/update the widget instance.
* To prevent a "flash of replaced DOM elements and re-initialized JS
* components", the JS template is rendered outside of the normal form
* container.
*/
fieldContainer = $( '<div></div>' );
syncContainer = widgetContainer.find( '.widget-content:first' );
syncContainer.before( fieldContainer );
/*
* Sync the widget instance model attributes onto the hidden inputs that widgets currently use to store the state.
* In the future, when widgets are JS-driven, the underlying widget instance data should be exposed as a model
* from the start, without having to sync with hidden fields. See <https://core.trac.wordpress.org/ticket/33507>.
*/
modelAttributes = {};
syncContainer.find( '.media-widget-instance-property' ).each( function() {
var input = $( this );
modelAttributes[ input.data( 'property' ) ] = input.val();
});
modelAttributes.widget_id = widgetId;
widgetModel = new ModelConstructor( modelAttributes );
widgetControl = new ControlConstructor({
el: fieldContainer,
syncContainer: syncContainer,
model: widgetModel
});
/*
* Render the widget once the widget parent's container finishes animating,
* as the widget-added event fires with a slideDown of the container.
* This ensures that the container's dimensions are fixed so that ME.js
* can initialize with the proper dimensions.
*/
renderWhenAnimationDone = function() {
if ( ! widgetContainer.hasClass( 'open' ) ) {
setTimeout( renderWhenAnimationDone, animatedCheckDelay );
} else {
widgetControl.render();
}
};
renderWhenAnimationDone();
/*
* Note that the model and control currently won't ever get garbage-collected
* when a widget gets removed/deleted because there is no widget-removed event.
*/
component.modelCollection.add( [ widgetModel ] );
component.widgetControls[ widgetModel.get( 'widget_id' ) ] = widgetControl;
};
/**
* Setup widget in accessibility mode.
*
* @memberOf wp.mediaWidgets
*
* @return {void}
*/
component.setupAccessibleMode = function setupAccessibleMode() {
var widgetForm, widgetId, idBase, widgetControl, ControlConstructor, ModelConstructor, modelAttributes, fieldContainer, syncContainer;
widgetForm = $( '.editwidget > form' );
if ( 0 === widgetForm.length ) {
return;
}
idBase = widgetForm.find( '.id_base' ).val();
ControlConstructor = component.controlConstructors[ idBase ];
if ( ! ControlConstructor ) {
return;
}
widgetId = widgetForm.find( '> .widget-control-actions > .widget-id' ).val();
ModelConstructor = component.modelConstructors[ idBase ] || component.MediaWidgetModel;
fieldContainer = $( '<div></div>' );
syncContainer = widgetForm.find( '> .widget-inside' );
syncContainer.before( fieldContainer );
modelAttributes = {};
syncContainer.find( '.media-widget-instance-property' ).each( function() {
var input = $( this );
modelAttributes[ input.data( 'property' ) ] = input.val();
});
modelAttributes.widget_id = widgetId;
widgetControl = new ControlConstructor({
el: fieldContainer,
syncContainer: syncContainer,
model: new ModelConstructor( modelAttributes )
});
component.modelCollection.add( [ widgetControl.model ] );
component.widgetControls[ widgetControl.model.get( 'widget_id' ) ] = widgetControl;
widgetControl.render();
};
/**
* Sync widget instance data sanitized from server back onto widget model.
*
* This gets called via the 'widget-updated' event when saving a widget from
* the widgets admin screen and also via the 'widget-synced' event when making
* a change to a widget in the customizer.
*
* @memberOf wp.mediaWidgets
*
* @param {jQuery.Event} event - Event.
* @param {jQuery} widgetContainer - Widget container element.
*
* @return {void}
*/
component.handleWidgetUpdated = function handleWidgetUpdated( event, widgetContainer ) {
var widgetForm, widgetContent, widgetId, widgetControl, attributes = {};
widgetForm = widgetContainer.find( '> .widget-inside > .form, > .widget-inside > form' );
widgetId = widgetForm.find( '> .widget-id' ).val();
widgetControl = component.widgetControls[ widgetId ];
if ( ! widgetControl ) {
return;
}
// Make sure the server-sanitized values get synced back into the model.
widgetContent = widgetForm.find( '> .widget-content' );
widgetContent.find( '.media-widget-instance-property' ).each( function() {
var property = $( this ).data( 'property' );
attributes[ property ] = $( this ).val();
});
// Suspend syncing model back to inputs when syncing from inputs to model, preventing infinite loop.
widgetControl.stopListening( widgetControl.model, 'change', widgetControl.syncModelToInputs );
widgetControl.model.set( attributes );
widgetControl.listenTo( widgetControl.model, 'change', widgetControl.syncModelToInputs );
};
/**
* Initialize functionality.
*
* This function exists to prevent the JS file from having to boot itself.
* When WordPress enqueues this script, it should have an inline script
* attached which calls wp.mediaWidgets.init().
*
* @memberOf wp.mediaWidgets
*
* @return {void}
*/
component.init = function init() {
var $document = $( document );
$document.on( 'widget-added', component.handleWidgetAdded );
$document.on( 'widget-synced widget-updated', component.handleWidgetUpdated );
/*
* Manually trigger widget-added events for media widgets on the admin
* screen once they are expanded. The widget-added event is not triggered
* for each pre-existing widget on the widgets admin screen like it is
* on the customizer. Likewise, the customizer only triggers widget-added
* when the widget is expanded to just-in-time construct the widget form
* when it is actually going to be displayed. So the following implements
* the same for the widgets admin screen, to invoke the widget-added
* handler when a pre-existing media widget is expanded.
*/
$( function initializeExistingWidgetContainers() {
var widgetContainers;
if ( 'widgets' !== window.pagenow ) {
return;
}
widgetContainers = $( '.widgets-holder-wrap:not(#available-widgets)' ).find( 'div.widget' );
widgetContainers.one( 'click.toggle-widget-expanded', function toggleWidgetExpanded() {
var widgetContainer = $( this );
component.handleWidgetAdded( new jQuery.Event( 'widget-added' ), widgetContainer );
});
// Accessibility mode.
if ( document.readyState === 'complete' ) {
// Page is fully loaded.
component.setupAccessibleMode();
} else {
// Page is still loading.
$( window ).on( 'load', function() {
component.setupAccessibleMode();
});
}
});
};
return component;
})( jQuery );