'use strict';

// Register the plugin within the editor.
CKEDITOR.plugins.add( 'simplebox', {
// This plugin requires the Widgets System defined in the 'widget' plugin.
requires: 'widget',

// Register the icon used for the toolbar button. It must be the same
// as the name of the widget.
icons: 'simplebox',

// The plugin initialization logic goes inside this method.
init: function( editor ) {
// Register the editing dialog.
CKEDITOR.dialog.add( 'simplebox', this.path + 'dialogs/simplebox.js' );

// Register the simplebox widget.
editor.widgets.add( 'simplebox', {
// Allow all HTML elements, classes, and styles that this widget requires.
// Read more about the Advanced Content Filter here:
// * http://docs.ckeditor.com/#!/guide/dev_advanced_content_filter
// * http://docs.ckeditor.com/#!/guide/plugin_sdk_integration_with_acf
allowedContent:
'div(!simplebox,align-left,align-right,align-center){width};' +
'div(!simplebox-content); h2(!simplebox-title)',

// Minimum HTML which is required by this widget to work.
requiredContent: 'div(simplebox)',

// Define two nested editable areas.
editables: {
title: {
// Define CSS selector used for finding the element inside widget element.
selector: '.simplebox-title',
// Define content allowed in this nested editable. Its content will be
// filtered accordingly and the toolbar will be adjusted when this editable
// is focused.
allowedContent: 'br strong em'
},
content: {
selector: '.simplebox-content'
}
},

// Define the template of a new Simple Box widget.
// The template will be used when creating new instances of the Simple Box widget.
template:
'<div class="simplebox">' +
'<h2 class="simplebox-title">Title</h2>' +
'<div class="simplebox-content"><p>Content...</p></div>' +
'</div>',

// Define the label for a widget toolbar button which will be automatically
// created by the Widgets System. This button will insert a new widget instance
// created from the template defined above, or will edit selected widget
// (see second part of this tutorial to learn about editing widgets).
//
// Note: In order to be able to translate your widget you should use the
// editor.lang.simplebox.* property. A string was used directly here to simplify this tutorial.
button: 'Create a simple box',

// Set the widget dialog window name. This enables the automatic widget-dialog binding.
// This dialog window will be opened when creating a new widget or editing an existing one.
dialog: 'simplebox',

// Check the elements that need to be converted to widgets.
//
// Note: The "element" argument is an instance of http://docs.ckeditor.com/#!/api/CKEDITOR.htmlParser.element
// so it is not a real DOM element yet. This is caused by the fact that upcasting is performed
// during data processing which is done on DOM represented by JavaScript objects.
upcast: function( element ) {
// Return "true" (that element needs to converted to a Simple Box widget)
// for all <div> elements with a "simplebox" class.
return element.name == 'div' && element.hasClass( 'simplebox' );
},

// When a widget is being initialized, we need to read the data ("align" and "width")
// from DOM and set it by using the widget.setData() method.
// More code which needs to be executed when DOM is available may go here.
init: function() {
var width = this.element.getStyle( 'width' );
if ( width )
this.setData( 'width', width );

if ( this.element.hasClass( 'align-left' ) )
this.setData( 'align', 'left' );
if ( this.element.hasClass( 'align-right' ) )
this.setData( 'align', 'right' );
if ( this.element.hasClass( 'align-center' ) )
this.setData( 'align', 'center' );
},

// Listen on the widget#data event which is fired every time the widget data changes
// and updates the widget's view.
// Data may be changed by using the widget.setData() method, which we use in the
// Simple Box dialog window.
data: function() {
// Check whether "width" widget data is set and remove or set "width" CSS style.
// The style is set on widget main element (div.simplebox).
if ( !this.data.width )
this.element.removeStyle( 'width' );
else
this.element.setStyle( 'width', this.data.width );

// Brutally remove all align classes and set a new one if "align" widget data is set.
this.element.removeClass( 'align-left' );
this.element.removeClass( 'align-right' );
this.element.removeClass( 'align-center' );
if ( this.data.align )
this.element.addClass( 'align-' + this.data.align );
}
} );
}
} );