(function() {

	tinymce.create('tinymce.plugins.wpGallery', {

		init : function(ed, url) {

			var t = this;

			t.url = url;

			t.editor = ed;

			t._createButtons();

			// Register the command so that it can be invoked by using tinyMCE.activeEditor.execCommand('...');

			ed.addCommand('WP_Gallery', function() {

				if ( tinymce.isIE )

					ed.selection.moveToBookmark( ed.wpGalleryBookmark );

				var el = ed.selection.getNode(),

					gallery = wp.media.gallery,

					frame;

				// Check if the `wp.media.gallery` API exists.

				if ( typeof wp === 'undefined' || ! wp.media || ! wp.media.gallery )

					return;

				// Make sure we've selected a gallery node.

				if ( el.nodeName != 'IMG' || ed.dom.getAttrib(el, 'class').indexOf('wp-gallery') == -1 )

					return;

				frame = gallery.edit( '[' + ed.dom.getAttrib( el, 'title' ) + ']' );

				frame.state('gallery-edit').on( 'update', function( selection ) {

					var shortcode = gallery.shortcode( selection ).string().slice( 1, -1 );

					ed.dom.setAttrib( el, 'title', shortcode );

				});

			});

			ed.onInit.add(function(ed) {

				// iOS6 doesn't show the buttons properly on click, show them on 'touchstart'

				if ( 'ontouchstart' in window ) {

					ed.dom.events.add(ed.getBody(), 'touchstart', function(e){

						var target = e.target;

						if ( target.nodeName == 'IMG' && ed.dom.hasClass(target, 'wp-gallery') ) {

							ed.selection.select(target);

							ed.dom.events.cancel(e);

							ed.plugins.wordpress._hideButtons();

							ed.plugins.wordpress._showButtons(target, 'wp_gallerybtns');

						}

					});

				}

			});

			ed.onMouseDown.add(function(ed, e) {

				if ( e.target.nodeName == 'IMG' && ed.dom.hasClass(e.target, 'wp-gallery') ) {

					ed.plugins.wordpress._hideButtons();

					ed.plugins.wordpress._showButtons(e.target, 'wp_gallerybtns');

				}

			});

			ed.onBeforeSetContent.add(function(ed, o) {

				o.content = t._do_gallery(o.content);

			});

			ed.onPostProcess.add(function(ed, o) {

				if (o.get)

					o.content = t._get_gallery(o.content);

			});

		},

		_do_gallery : function(co) {

			return co.replace(/\[gallery([^\]]*)\]/g, function(a,b){

				return '<img src="'+tinymce.baseURL+'/plugins/wpgallery/img/t.gif" class="wp-gallery mceItem" title="gallery'+tinymce.DOM.encode(b)+'" />';

			});

		},

		_get_gallery : function(co) {

			function getAttr(s, n) {

				n = new RegExp(n + '=\"([^\"]+)\"', 'g').exec(s);

				return n ? tinymce.DOM.decode(n[1]) : '';

			};

			return co.replace(/(?:<p[^>]*>)*(<img[^>]+>)(?:<\/p>)*/g, function(a,im) {

				var cls = getAttr(im, 'class');

				if ( cls.indexOf('wp-gallery') != -1 )

					return '<p>['+tinymce.trim(getAttr(im, 'title'))+']</p>';

				return a;

			});

		},

		_createButtons : function() {

			var t = this, ed = tinymce.activeEditor, DOM = tinymce.DOM, editButton, dellButton, isRetina;

			if ( DOM.get('wp_gallerybtns') )

				return;

			isRetina = ( window.devicePixelRatio && window.devicePixelRatio > 1 ) || // WebKit, Opera

				( window.matchMedia && window.matchMedia('(min-resolution:130dpi)').matches ); // Firefox, IE10, Opera

			DOM.add(document.body, 'div', {

				id : 'wp_gallerybtns',

				style : 'display:none;'

			});

			editButton = DOM.add('wp_gallerybtns', 'img', {

				src : isRetina ? t.url+'/img/edit-2x.png' : t.url+'/img/edit.png',

				id : 'wp_editgallery',

				width : '24',

				height : '24',

				title : ed.getLang('wordpress.editgallery')

			});

			tinymce.dom.Event.add(editButton, 'mousedown', function(e) {

				var ed = tinymce.activeEditor;

				ed.wpGalleryBookmark = ed.selection.getBookmark('simple');

				ed.execCommand("WP_Gallery");

				ed.plugins.wordpress._hideButtons();

			});

			dellButton = DOM.add('wp_gallerybtns', 'img', {

				src : isRetina ? t.url+'/img/delete-2x.png' : t.url+'/img/delete.png',

				id : 'wp_delgallery',

				width : '24',

				height : '24',

				title : ed.getLang('wordpress.delgallery')

			});

			tinymce.dom.Event.add(dellButton, 'mousedown', function(e) {

				var ed = tinymce.activeEditor, el = ed.selection.getNode();

				if ( el.nodeName == 'IMG' && ed.dom.hasClass(el, 'wp-gallery') ) {

					ed.dom.remove(el);

					ed.execCommand('mceRepaint');

					ed.dom.events.cancel(e);

				}

				ed.plugins.wordpress._hideButtons();

			});

		},

		getInfo : function() {

			return {

				longname : 'Gallery Settings',

				author : 'WordPress',

				authorurl : 'http://wordpress.org',

				infourl : '',

				version : "1.0"

			};

		}

	});

	tinymce.PluginManager.add('wpgallery', tinymce.plugins.wpGallery);

})();