/**
* @output wp-includes/js/customize-models.js
*/
/* global _wpCustomizeHeader */
(function( $, wp ) {
var api = wp.customize;
/** @namespace wp.customize.HeaderTool */
api.HeaderTool = {};
/**
* wp.customize.HeaderTool.ImageModel
*
* A header image. This is where saves via the Customizer API are
* abstracted away, plus our own Ajax calls to add images to and remove
* images from the user's recently uploaded images setting on the server.
* These calls are made regardless of whether the user actually saves new
* Customizer settings.
*
* @memberOf wp.customize.HeaderTool
* @alias wp.customize.HeaderTool.ImageModel
*
* @constructor
* @augments Backbone.Model
*/
api.HeaderTool.ImageModel = Backbone.Model.extend(/** @lends wp.customize.HeaderTool.ImageModel.prototype */{
defaults: function() {
return {
header: {
attachment_id: 0,
url: '',
timestamp: _.now(),
thumbnail_url: ''
},
choice: '',
selected: false,
random: false
};
},
initialize: function() {
this.on('hide', this.hide, this);
},
hide: function() {
this.set('choice', '');
api('header_image').set('remove-header');
api('header_image_data').set('remove-header');
},
destroy: function() {
var data = this.get('header'),
curr = api.HeaderTool.currentHeader.get('header').attachment_id;
// If the image we're removing is also the current header,
// unset the latter.
if (curr && data.attachment_id === curr) {
api.HeaderTool.currentHeader.trigger('hide');
}
wp.ajax.post( 'custom-header-remove', {
nonce: _wpCustomizeHeader.nonces.remove,
wp_customize: 'on',
theme: api.settings.theme.stylesheet,
attachment_id: data.attachment_id
});
this.trigger('destroy', this, this.collection);
},
save: function() {
if (this.get('random')) {
api('header_image').set(this.get('header').random);
api('header_image_data').set(this.get('header').random);
} else {
if (this.get('header').defaultName) {
api('header_image').set(this.get('header').url);
api('header_image_data').set(this.get('header').defaultName);
} else {
api('header_image').set(this.get('header').url);
api('header_image_data').set(this.get('header'));
}
}
api.HeaderTool.combinedList.trigger('control:setImage', this);
},
importImage: function() {
var data = this.get('header');
if (data.attachment_id === undefined) {
return;
}
wp.ajax.post( 'custom-header-add', {
nonce: _wpCustomizeHeader.nonces.add,
wp_customize: 'on',
theme: api.settings.theme.stylesheet,
attachment_id: data.attachment_id
} );
},
shouldBeCropped: function() {
if (this.get('themeFlexWidth') === true &&
this.get('themeFlexHeight') === true) {
return false;
}
if (this.get('themeFlexWidth') === true &&
this.get('themeHeight') === this.get('imageHeight')) {
return false;
}
if (this.get('themeFlexHeight') === true &&
this.get('themeWidth') === this.get('imageWidth')) {
return false;
}
if (this.get('themeWidth') === this.get('imageWidth') &&
this.get('themeHeight') === this.get('imageHeight')) {
return false;
}
if (this.get('imageWidth') <= this.get('themeWidth')) {
return false;
}
return true;
}
});
/**
* wp.customize.HeaderTool.ChoiceList
*
* @memberOf wp.customize.HeaderTool
* @alias wp.customize.HeaderTool.ChoiceList
*
* @constructor
* @augments Backbone.Collection
*/
api.HeaderTool.ChoiceList = Backbone.Collection.extend({
model: api.HeaderTool.ImageModel,
// Ordered from most recently used to least.
comparator: function(model) {
return -model.get('header').timestamp;
},
initialize: function() {
var current = api.HeaderTool.currentHeader.get('choice').replace(/^https?:\/\//, ''),
isRandom = this.isRandomChoice(api.get().header_image);
// Overridable by an extending class.
if (!this.type) {
this.type = 'uploaded';
}
// Overridable by an extending class.
if (typeof this.data === 'undefined') {
this.data = _wpCustomizeHeader.uploads;
}
if (isRandom) {
// So that when adding data we don't hide regular images.
current = api.get().header_image;
}
this.on('control:setImage', this.setImage, this);
this.on('control:removeImage', this.removeImage, this);
this.on('add', this.maybeRemoveOldCrop, this);
this.on('add', this.maybeAddRandomChoice, this);
_.each(this.data, function(elt, index) {
if (!elt.attachment_id) {
elt.defaultName = index;
}
if (typeof elt.timestamp === 'undefined') {
elt.timestamp = 0;
}
this.add({
header: elt,
choice: elt.url.split('/').pop(),
selected: current === elt.url.replace(/^https?:\/\//, '')
}, { silent: true });
}, this);
if (this.size() > 0) {
this.addRandomChoice(current);
}
},
maybeRemoveOldCrop: function( model ) {
var newID = model.get( 'header' ).attachment_id || false,
oldCrop;
// Bail early if we don't have a new attachment ID.
if ( ! newID ) {
return;
}
oldCrop = this.find( function( item ) {
return ( item.cid !== model.cid && item.get( 'header' ).attachment_id === newID );
} );
// If we found an old crop, remove it from the collection.
if ( oldCrop ) {
this.remove( oldCrop );
}
},
maybeAddRandomChoice: function() {
if (this.size() === 1) {
this.addRandomChoice();
}
},
addRandomChoice: function(initialChoice) {
var isRandomSameType = RegExp(this.type).test(initialChoice),
randomChoice = 'random-' + this.type + '-image';
this.add({
header: {
timestamp: 0,
random: randomChoice,
width: 245,
height: 41
},
choice: randomChoice,
random: true,
selected: isRandomSameType
});
},
isRandomChoice: function(choice) {
return (/^random-(uploaded|default)-image$/).test(choice);
},
shouldHideTitle: function() {
return this.size() < 2;
},
setImage: function(model) {
this.each(function(m) {
m.set('selected', false);
});
if (model) {
model.set('selected', true);
}
},
removeImage: function() {
this.each(function(m) {
m.set('selected', false);
});
}
});
/**
* wp.customize.HeaderTool.DefaultsList
*
* @memberOf wp.customize.HeaderTool
* @alias wp.customize.HeaderTool.DefaultsList
*
* @constructor
* @augments wp.customize.HeaderTool.ChoiceList
* @augments Backbone.Collection
*/
api.HeaderTool.DefaultsList = api.HeaderTool.ChoiceList.extend({
initialize: function() {
this.type = 'default';
this.data = _wpCustomizeHeader.defaults;
api.HeaderTool.ChoiceList.prototype.initialize.apply(this);
}
});
})( jQuery, window.wp );
في جولة حصرية داخل “الغرفة الزرقاء” بقناة BBC العربية، نكشف كواليس واحدة من أكثر غرف الأخبار تطورًا في العالم.
كيف الذكاء اصطناعي يتحكم بالبث دون تدخل بشري، لتقدم تجربة بصرية مذهلة.
الفيديو يستعرض كيف تمزج BBC بين التقنية والاحتراف لتصنع نشرات إخبارية من قلب المستقبل.