/**
 * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or http://ckeditor.com/license
 */

( function() {
	// It is possible to set things in three different places.
	// 1. As attributes in the object tag.
	// 2. As param tags under the object tag.
	// 3. As attributes in the embed tag.
	// It is possible for a single attribute to be present in more than one place.
	// So let's define a mapping between a sementic attribute and its syntactic
	// equivalents.
	// Then we'll set and retrieve attribute values according to the mapping,
	// instead of having to check and set each syntactic attribute every time.
	//
	// Reference: http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_12701
	var ATTRTYPE_OBJECT = 1,
		ATTRTYPE_PARAM = 2,
		ATTRTYPE_EMBED = 4;

	var config = {};

	var attributesMap = {
		id: [ {
			type: ATTRTYPE_OBJECT, name: 'id'
		} ],
		classid: [ {
			type: ATTRTYPE_OBJECT, name: 'classid'
		} ],
		codebase: [ {
			type: ATTRTYPE_OBJECT, name: 'codebase'
		} ],
		pluginspage: [ {
			type: ATTRTYPE_EMBED, name: 'pluginspage'
		} ],
		src: [ {
			type: ATTRTYPE_PARAM, name: 'movie'
		}, {
			type: ATTRTYPE_EMBED, name: 'src'
		}, {
			type: ATTRTYPE_OBJECT, name: 'data'
		} ],
		name: [ {
			type: ATTRTYPE_EMBED, name: 'name'
		} ],
		align: [ {
			type: ATTRTYPE_OBJECT, name: 'align'
		} ],
		'class': [ {
			type: ATTRTYPE_OBJECT, name: 'class'
		}, {
			type: ATTRTYPE_EMBED, name: 'class'
		} ],
		width: [ {
			type: ATTRTYPE_OBJECT, name: 'width'
		}, {
			type: ATTRTYPE_EMBED, name: 'width'
		} ],
		height: [ {
			type: ATTRTYPE_OBJECT, name: 'height'
		}, {
			type: ATTRTYPE_EMBED, name: 'height'
		} ],
		hSpace: [ {
			type: ATTRTYPE_OBJECT, name: 'hSpace'
		}, {
			type: ATTRTYPE_EMBED, name: 'hSpace'
		} ],
		vSpace: [ {
			type: ATTRTYPE_OBJECT, name: 'vSpace'
		}, {
			type: ATTRTYPE_EMBED, name: 'vSpace'
		} ],
		style: [ {
			type: ATTRTYPE_OBJECT, name: 'style'
		}, {
			type: ATTRTYPE_EMBED, name: 'style'
		} ],
		type: [ {
			type: ATTRTYPE_EMBED, name: 'type'
		} ]
	};

	var names = [ 'play', 'loop', 'menu', 'quality', 'scale', 'salign', 'wmode', 'bgcolor', 'base', 'flashvars', 'allowScriptAccess', 'allowFullScreen' ];
	for ( var i = 0; i < names.length; i++ ) {
		attributesMap[ names[ i ] ] = [ {
			type: ATTRTYPE_EMBED, name: names[ i ]
		}, {
			type: ATTRTYPE_PARAM, name: names[ i ]
		} ];
	}

	// These attributes are "true" by default and not present in editor data (when "true").
	// Note that, though default value of "allowFullScreen" is "true", it is not listed here.
	// "allowFullScreen" is present in editor data regardless of the value (#7634).
	names = [ 'play', 'loop', 'menu' ];
	for ( i = 0; i < names.length; i++ )
		attributesMap[ names[ i ] ][ 0 ][ 'default' ] = attributesMap[ names[ i ] ][ 1 ][ 'default' ] = true;

	function isFlv(src) {
		var flashFilenameRegex = /\.flv(?:$|\?)/i;

		return flashFilenameRegex.test(src);
	}

	function loadValue( objectNode, embedNode, paramMap ) {
		var attributes = attributesMap[ this.id ];
		if ( !attributes )
			return;

		var isCheckbox = ( this instanceof CKEDITOR.ui.dialog.checkbox );
		for ( var i = 0; i < attributes.length; i++ ) {
			var attrDef = attributes[ i ];
			switch ( attrDef.type ) {
				case ATTRTYPE_OBJECT:
					if ( !objectNode )
						continue;
					if ( objectNode.getAttribute( attrDef.name ) !== null ) {
						var value = objectNode.getAttribute( attrDef.name );
						if ( isCheckbox ) {
							this.setValue( value.toLowerCase() == 'true' );
						} else {
							this.setValue( value );
						}
						return;
					} else if ( isCheckbox ) {
						this.setValue( !!attrDef['default'] );
					}
					break;
				case ATTRTYPE_PARAM:
					if ( !objectNode ) {
						continue;
					}
					if ( attrDef.name in paramMap ) {
						value = paramMap[ attrDef.name ];
						if ( isCheckbox )
							this.setValue( value.toLowerCase() == 'true' );
						else
							this.setValue( value );
						return;
					} else if ( isCheckbox ) {
						this.setValue( !!attrDef[ 'default' ] );
					}
					break;
				case ATTRTYPE_EMBED:
					if ( !embedNode )
						continue;
					if ( embedNode.getAttribute( attrDef.name ) ) {
						value = embedNode.getAttribute( attrDef.name );
						if ( isCheckbox )
							this.setValue( value.toLowerCase() == 'true' );
						else
							this.setValue( value );
						return;
					} else if ( isCheckbox ) {
						this.setValue( !!attrDef[ 'default' ] );
					}
			}
		}
	}

	function commitValue( objectNode, embedNode, paramMap ) {
		var attributes = attributesMap[ this.id ];
		if ( !attributes )
			return;

		var isRemove = ( this.getValue() === '' ),
			isCheckbox = ( this instanceof CKEDITOR.ui.dialog.checkbox );

		for ( var i = 0; i < attributes.length; i++ ) {
			var attrDef = attributes[ i ];
			switch ( attrDef.type ) {
				case ATTRTYPE_OBJECT:
					// Avoid applying the data attribute when not needed (#7733)
					if ( !objectNode || ( attrDef.name == 'data' && embedNode && !objectNode.hasAttribute( 'data' ) ) )
						continue;
					var value = this.getValue();
					if ( isRemove || isCheckbox && value === attrDef[ 'default' ] )
						objectNode.removeAttribute( attrDef.name );
					else
						objectNode.setAttribute( attrDef.name, value );
					break;
				case ATTRTYPE_PARAM:
					if ( !objectNode )
						continue;
					value = this.getValue();
					if ( isRemove || isCheckbox && value === attrDef[ 'default' ] ) {
						if ( attrDef.name in paramMap )
							paramMap[ attrDef.name ].remove();
					} else {
						if ( attrDef.name in paramMap )
							paramMap[ attrDef.name ].setAttribute( 'value', value );
						else {
							var param = CKEDITOR.dom.element.createFromHtml( '<cke:param></cke:param>', objectNode.getDocument() );
							param.setAttributes( { name: attrDef.name, value: value } );
							if ( objectNode.getChildCount() < 1 )
								param.appendTo( objectNode );
							else
								param.insertBefore( objectNode.getFirst() );
						}
					}
					break;
				case ATTRTYPE_EMBED:
					if ( !embedNode )
						continue;
					value = this.getValue();
					if ( isRemove || isCheckbox && value === attrDef[ 'default' ] )
						embedNode.removeAttribute( attrDef.name );
					else if (attrDef.name === 'src' && isFlv(value)) {
						embedNode.setAttribute(attrDef.name, config.flash_flvPlayer);
						embedNode.setAttribute('flashvars', 'file=' + value + '&link=' + value);
					} else {
					    embedNode.setAttribute( attrDef.name, value );
					}
			}
		}
	}

	CKEDITOR.dialog.add( 'flash', function( editor ) {
		var makeObjectTag = !editor.config.flashEmbedTagOnly,
			makeEmbedTag = editor.config.flashAddEmbedTag || editor.config.flashEmbedTagOnly;

		config = editor.config;

		var previewPreloader,
			previewAreaHtml = '<div>' + CKEDITOR.tools.htmlEncode( editor.lang.common.preview ) + '<br>' +
			'<div id="cke_FlashPreviewLoader' + CKEDITOR.tools.getNextNumber() + '" style="display:none"><div class="loading">&nbsp;</div></div>' +
			'<div id="cke_FlashPreviewBox' + CKEDITOR.tools.getNextNumber() + '" class="FlashPreviewBox"></div></div>';

		return {
			title: editor.lang.flash.title,
			minWidth: 420,
			minHeight: 310,
			onShow: function() {
				// Clear previously saved elements.
				this.fakeImage = this.objectNode = this.embedNode = null;
				previewPreloader = new CKEDITOR.dom.element( 'embed', editor.document );

				// Try to detect any embed or object tag that has Flash parameters.
				var fakeImage = this.getSelectedElement();
				if ( fakeImage && fakeImage.data( 'cke-real-element-type' ) && fakeImage.data( 'cke-real-element-type' ) == 'flash' ) {
					this.fakeImage = fakeImage;

					var realElement = editor.restoreRealElement( fakeImage ),
						objectNode = null,
						embedNode = null,
						paramMap = {};
					if ( realElement.getName() == 'cke:object' ) {
						objectNode = realElement;
						var embedList = objectNode.getElementsByTag( 'embed', 'cke' );
						if ( embedList.count() > 0 )
							embedNode = embedList.getItem( 0 );
						var paramList = objectNode.getElementsByTag( 'param', 'cke' );
						for ( var i = 0, length = paramList.count(); i < length; i++ ) {
							var item = paramList.getItem( i ),
								name = item.getAttribute( 'name' ),
								value = item.getAttribute( 'value' );
							paramMap[ name ] = value;
						}
					} else if ( realElement.getName() == 'cke:embed' ) {
						embedNode = realElement;
					}

					this.objectNode = objectNode;
					this.embedNode = embedNode;

					this.setupContent( objectNode, embedNode, paramMap, fakeImage );
				}
			},
			onOk: function() {
				// If there's no selected object or embed, create one. Otherwise, reuse the
				// selected object and embed nodes.
				var objectNode = null,
					embedNode = null,
					paramMap = null;
				if ( !this.fakeImage ) {
					if ( makeObjectTag ) {
						objectNode = CKEDITOR.dom.element.createFromHtml( '<cke:object></cke:object>', editor.document );
						var attributes = {
							classid: 'clsid:d27cdb6e-ae6d-11cf-96b8-444553540000',
							codebase: 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0'
						};
						objectNode.setAttributes( attributes );
					}
					if ( makeEmbedTag ) {
						embedNode = CKEDITOR.dom.element.createFromHtml( '<cke:embed></cke:embed>', editor.document );
						embedNode.setAttributes( {
							type: 'application/x-shockwave-flash',
							pluginspage: 'http://www.macromedia.com/go/getflashplayer'
						} );
						if ( objectNode )
							embedNode.appendTo( objectNode );
					}
				} else {
					objectNode = this.objectNode;
					embedNode = this.embedNode;
				}

				// Produce the paramMap if there's an object tag.
				if ( objectNode ) {
					paramMap = {};
					var paramList = objectNode.getElementsByTag( 'param', 'cke' );
					for ( var i = 0, length = paramList.count(); i < length; i++ )
						paramMap[ paramList.getItem( i ).getAttribute( 'name' ) ] = paramList.getItem( i );
				}

				// A subset of the specified attributes/styles
				// should also be applied on the fake element to
				// have better visual effect. (#5240)
				var extraStyles = {},
					extraAttributes = {};
				this.commitContent( objectNode, embedNode, paramMap, extraStyles, extraAttributes );

				// Refresh the fake image.
				var newFakeImage = editor.createFakeElement( objectNode || embedNode, 'cke_flash', 'flash', true );
				newFakeImage.setAttributes( extraAttributes );
				newFakeImage.setStyles( extraStyles );
				if ( this.fakeImage ) {
					newFakeImage.replace( this.fakeImage );
					editor.getSelection().selectElement( newFakeImage );
				} else {
					editor.insertElement( newFakeImage );
				}
			},

			onHide: function() {
				if ( this.preview )
					this.preview.setHtml( '' );
			},

			contents: [ {
				id: 'info',
				label: editor.lang.common.generalTab,
				accessKey: 'I',
				elements: [ {
					type: 'vbox',
					padding: 0,
					children: [ {
						type: 'hbox',
						widths: [ '280px', '110px' ],
						align: 'right',
						children: [ {
							id: 'src',
							type: 'text',
							label: editor.lang.common.url,
							required: true,
							validate: CKEDITOR.dialog.validate.notEmpty( editor.lang.flash.validateSrc ),
							setup: loadValue,
							commit: commitValue,
							onLoad: function() {
								var dialog = this.getDialog(),
									updatePreview = function( src ) {
										// Query the preloader to figure out the url impacted by based href.
										previewPreloader.setAttribute( 'src', src );

										var embed = document.createElement('embed');
										embed.setAttribute('allowfullscreen', 'true');
										embed.setAttribute('type', 'application/x-shockwave-flash');
										embed.setAttribute('quality', 'high');
										embed.setAttribute('height', '100%');
										embed.setAttribute('width', '100%');

										if (isFlv(src)) {
											embed.setAttribute(
												'flashvars',
												CKEDITOR.tools.htmlEncode('file=' + src + '&link=' + src + '&height=100%&width=100%')
											);
											embed.setAttribute('src', CKEDITOR.tools.htmlEncode(config.flash_flvPlayer));
										} else {
											embed.setAttribute('src', CKEDITOR.tools.htmlEncode(previewPreloader.getAttribute('src')));
										}

										dialog.preview.setHtml(embed.outerHTML);
									};
								// Preview element
								dialog.preview = dialog.getContentElement( 'info', 'preview' ).getElement().getChild( 3 );

								// Sync on inital value loaded.
								this.on( 'change', function( evt ) {

									if ( evt.data && evt.data.value )
										updatePreview( evt.data.value );
								} );
								// Sync when input value changed.
								this.getInputElement().on( 'change', function() {

									updatePreview( this.getValue() );
								}, this );
							}
						},
						{
							type: 'button',
							id: 'browse',
							filebrowser: 'info:src',
							hidden: true,
							// v-align with the 'src' field.
							// TODO: We need something better than a fixed size here.
							style: 'display:inline-block;margin-top:14px;',
							label: editor.lang.common.browseServer
						} ]
					} ]
				},
				{
					type: 'hbox',
					widths: [ '25%', '25%', '25%', '25%', '25%' ],
					children: [ {
						type: 'text',
						id: 'width',
						requiredContent: 'embed[width]',
						style: 'width:95px',
						label: editor.lang.common.width,
						validate: CKEDITOR.dialog.validate.htmlLength( editor.lang.common.invalidHtmlLength.replace( '%1', editor.lang.common.width ) ),
						setup: loadValue,
						commit: commitValue
					},
					{
						type: 'text',
						id: 'height',
						requiredContent: 'embed[height]',
						style: 'width:95px',
						label: editor.lang.common.height,
						validate: CKEDITOR.dialog.validate.htmlLength( editor.lang.common.invalidHtmlLength.replace( '%1', editor.lang.common.height ) ),
						setup: loadValue,
						commit: commitValue
					},
					{
						type: 'text',
						id: 'hSpace',
						requiredContent: 'embed[hspace]',
						style: 'width:95px',
						label: editor.lang.flash.hSpace,
						validate: CKEDITOR.dialog.validate.integer( editor.lang.flash.validateHSpace ),
						setup: loadValue,
						commit: commitValue
					},
					{
						type: 'text',
						id: 'vSpace',
						requiredContent: 'embed[vspace]',
						style: 'width:95px',
						label: editor.lang.flash.vSpace,
						validate: CKEDITOR.dialog.validate.integer( editor.lang.flash.validateVSpace ),
						setup: loadValue,
						commit: commitValue
					} ]
				},

				{
					type: 'vbox',
					children: [ {
						type: 'html',
						id: 'preview',
						style: 'width:95%;',
						html: previewAreaHtml
					} ]
				} ]
			},
			{
				id: 'Upload',
				hidden: true,
				filebrowser: 'uploadButton',
				label: editor.lang.common.upload,
				elements: [ {
					type: 'file',
					id: 'upload',
					label: editor.lang.common.upload,
					size: 38
				},
				{
					type: 'fileButton',
					id: 'uploadButton',
					label: editor.lang.common.uploadSubmit,
					filebrowser: 'info:src',
					'for': [ 'Upload', 'upload' ]
				} ]
			},
			{
				id: 'properties',
				label: editor.lang.flash.propertiesTab,
				elements: [ {
					type: 'hbox',
					widths: [ '50%', '50%' ],
					children: [ {
						id: 'scale',
						type: 'select',
						requiredContent: 'embed[scale]',
						label: editor.lang.flash.scale,
						'default': '',
						style: 'width : 100%;',
						items: [
							[ editor.lang.common.notSet, '' ],
							[ editor.lang.flash.scaleAll, 'showall' ],
							[ editor.lang.flash.scaleNoBorder, 'noborder' ],
							[ editor.lang.flash.scaleFit, 'exactfit' ]
						],
						setup: loadValue,
						commit: commitValue
					},
					{
						id: 'allowScriptAccess',
						type: 'select',
						requiredContent: 'embed[allowscriptaccess]',
						label: editor.lang.flash.access,
						'default': '',
						style: 'width : 100%;',
						items: [
							[ editor.lang.common.notSet, '' ],
							[ editor.lang.flash.accessAlways, 'always' ],
							[ editor.lang.flash.accessSameDomain, 'samedomain' ],
							[ editor.lang.flash.accessNever, 'never' ]
						],
						setup: loadValue,
						commit: commitValue
					} ]
				},
				{
					type: 'hbox',
					widths: [ '50%', '50%' ],
					children: [ {
						id: 'wmode',
						type: 'select',
						requiredContent: 'embed[wmode]',
						label: editor.lang.flash.windowMode,
						'default': '',
						style: 'width : 100%;',
						items: [
							[ editor.lang.common.notSet, '' ],
							[ editor.lang.flash.windowModeWindow, 'window' ],
							[ editor.lang.flash.windowModeOpaque, 'opaque' ],
							[ editor.lang.flash.windowModeTransparent, 'transparent' ]
						],
						setup: loadValue,
						commit: commitValue
					},
					{
						id: 'quality',
						type: 'select',
						requiredContent: 'embed[quality]',
						label: editor.lang.flash.quality,
						'default': 'high',
						style: 'width : 100%;',
						items: [
							[ editor.lang.common.notSet, '' ],
							[ editor.lang.flash.qualityBest, 'best' ],
							[ editor.lang.flash.qualityHigh, 'high' ],
							[ editor.lang.flash.qualityAutoHigh, 'autohigh' ],
							[ editor.lang.flash.qualityMedium, 'medium' ],
							[ editor.lang.flash.qualityAutoLow, 'autolow' ],
							[ editor.lang.flash.qualityLow, 'low' ]
						],
						setup: loadValue,
						commit: commitValue
					} ]
				},
				{
					type: 'hbox',
					widths: [ '50%', '50%' ],
					children: [ {
						id: 'align',
						type: 'select',
						requiredContent: 'object[align]',
						label: editor.lang.common.align,
						'default': '',
						style: 'width : 100%;',
						items: [
							[ editor.lang.common.notSet, '' ],
							[ editor.lang.common.alignLeft, 'left' ],
							[ editor.lang.flash.alignAbsBottom, 'absBottom' ],
							[ editor.lang.flash.alignAbsMiddle, 'absMiddle' ],
							[ editor.lang.flash.alignBaseline, 'baseline' ],
							[ editor.lang.common.alignBottom, 'bottom' ],
							[ editor.lang.common.alignMiddle, 'middle' ],
							[ editor.lang.common.alignRight, 'right' ],
							[ editor.lang.flash.alignTextTop, 'textTop' ],
							[ editor.lang.common.alignTop, 'top' ]
						],
						setup: loadValue,
						commit: function( objectNode, embedNode, paramMap, extraStyles, extraAttributes ) {
							var value = this.getValue();
							commitValue.apply( this, arguments );
							value && ( extraAttributes.align = value );
						}
					},
					{
						type: 'html',
						html: '<div></div>'
					} ]
				},
				{
					type: 'fieldset',
					label: CKEDITOR.tools.htmlEncode( editor.lang.flash.flashvars ),
					children: [ {
						type: 'vbox',
						padding: 0,
						children: [ {
							type: 'checkbox',
							id: 'menu',
							label: editor.lang.flash.chkMenu,
							'default': true,
							setup: loadValue,
							commit: commitValue
						},
						{
							type: 'checkbox',
							id: 'play',
							label: editor.lang.flash.chkPlay,
							'default': true,
							setup: loadValue,
							commit: commitValue
						},
						{
							type: 'checkbox',
							id: 'loop',
							label: editor.lang.flash.chkLoop,
							'default': true,
							setup: loadValue,
							commit: commitValue
						},
						{
							type: 'checkbox',
							id: 'allowFullScreen',
							label: editor.lang.flash.chkFull,
							'default': true,
							setup: loadValue,
							commit: commitValue
						} ]
					} ]
				} ]
			},
			{
				id: 'advanced',
				label: editor.lang.common.advancedTab,
				elements: [ {
					type: 'hbox',
					children: [ {
						type: 'text',
						id: 'id',
						requiredContent: 'object[id]',
						label: editor.lang.common.id,
						setup: loadValue,
						commit: commitValue
					} ]
				},
				{
					type: 'hbox',
					widths: [ '45%', '55%' ],
					children: [ {
						type: 'text',
						id: 'bgcolor',
						requiredContent: 'embed[bgcolor]',
						label: editor.lang.flash.bgcolor,
						setup: loadValue,
						commit: commitValue
					},
					{
						type: 'text',
						id: 'class',
						requiredContent: 'embed(cke-xyz)', // Random text like 'xyz' will check if all are allowed.
						label: editor.lang.common.cssClass,
						setup: loadValue,
						commit: commitValue
					} ]
				},
				{
					type: 'text',
					id: 'style',
					requiredContent: 'embed{cke-xyz}', // Random text like 'xyz' will check if all are allowed.
					validate: CKEDITOR.dialog.validate.inlineStyle( editor.lang.common.invalidInlineStyle ),
					label: editor.lang.common.cssStyle,
					setup: loadValue,
					commit: commitValue
				} ]
			} ]
		};
	} );
} )();