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[perso/Immae/Projets/packagist/piedsjaloux-ckeditor-component.git] / sources / plugins / tab / plugin.js

/**\r
 * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.\r
 * For licensing, see LICENSE.md or http://ckeditor.com/license\r
 */\r
\r
( function() {\r
	var meta = {\r
		editorFocus: false,\r
		modes: { wysiwyg: 1, source: 1 }\r
	};\r
\r
	var blurCommand = {\r
		exec: function( editor ) {\r
			editor.container.focusNext( true, editor.tabIndex );\r
		}\r
	};\r
\r
	var blurBackCommand = {\r
		exec: function( editor ) {\r
			editor.container.focusPrevious( true, editor.tabIndex );\r
		}\r
	};\r
\r
	function selectNextCellCommand( backward ) {\r
		return {\r
			editorFocus: false,\r
			canUndo: false,\r
			modes: { wysiwyg: 1 },\r
			exec: function( editor ) {\r
				if ( editor.editable().hasFocus ) {\r
					var sel = editor.getSelection(),\r
						path = new CKEDITOR.dom.elementPath( sel.getCommonAncestor(), sel.root ),\r
						cell;\r
\r
					if ( ( cell = path.contains( { td: 1, th: 1 }, 1 ) ) ) {\r
						var resultRange = editor.createRange(),\r
							next = CKEDITOR.tools.tryThese( function() {\r
								var row = cell.getParent(),\r
									next = row.$.cells[ cell.$.cellIndex + ( backward ? -1 : 1 ) ];\r
\r
								// Invalid any empty value.\r
								next.parentNode.parentNode;\r
								return next;\r
							}, function() {\r
								var row = cell.getParent(),\r
									table = row.getAscendant( 'table' ),\r
									nextRow = table.$.rows[ row.$.rowIndex + ( backward ? -1 : 1 ) ];\r
\r
								return nextRow.cells[ backward ? nextRow.cells.length - 1 : 0 ];\r
							} );\r
\r
						// Clone one more row at the end of table and select the first newly established cell.\r
						if ( !( next || backward ) ) {\r
							var table = cell.getAscendant( 'table' ).$,\r
								cells = cell.getParent().$.cells;\r
\r
							var newRow = new CKEDITOR.dom.element( table.insertRow( -1 ), editor.document );\r
\r
							for ( var i = 0, count = cells.length; i < count; i++ ) {\r
								var newCell = newRow.append( new CKEDITOR.dom.element( cells[ i ], editor.document ).clone( false, false ) );\r
								newCell.appendBogus();\r
							}\r
\r
							resultRange.moveToElementEditStart( newRow );\r
						} else if ( next ) {\r
							next = new CKEDITOR.dom.element( next );\r
							resultRange.moveToElementEditStart( next );\r
							// Avoid selecting empty block makes the cursor blind.\r
							if ( !( resultRange.checkStartOfBlock() && resultRange.checkEndOfBlock() ) )\r
								resultRange.selectNodeContents( next );\r
						} else {\r
							return true;\r
						}\r
\r
						resultRange.select( true );\r
						return true;\r
					}\r
				}\r
\r
				return false;\r
			}\r
		};\r
	}\r
\r
	CKEDITOR.plugins.add( 'tab', {\r
		init: function( editor ) {\r
			var tabTools = editor.config.enableTabKeyTools !== false,\r
				tabSpaces = editor.config.tabSpaces || 0,\r
				tabText = '';\r
\r
			while ( tabSpaces-- )\r
				tabText += '\xa0';\r
\r
			if ( tabText ) {\r
				editor.on( 'key', function( ev ) {\r
					// TAB.\r
					if ( ev.data.keyCode == 9 ) {\r
						editor.insertText( tabText );\r
						ev.cancel();\r
					}\r
				} );\r
			}\r
\r
			if ( tabTools ) {\r
				editor.on( 'key', function( ev ) {\r
					if ( ev.data.keyCode == 9 && editor.execCommand( 'selectNextCell' ) || // TAB\r
					ev.data.keyCode == ( CKEDITOR.SHIFT + 9 ) && editor.execCommand( 'selectPreviousCell' ) ) // SHIFT+TAB\r
					ev.cancel();\r
				} );\r
			}\r
\r
			editor.addCommand( 'blur', CKEDITOR.tools.extend( blurCommand, meta ) );\r
			editor.addCommand( 'blurBack', CKEDITOR.tools.extend( blurBackCommand, meta ) );\r
			editor.addCommand( 'selectNextCell', selectNextCellCommand() );\r
			editor.addCommand( 'selectPreviousCell', selectNextCellCommand( true ) );\r
		}\r
	} );\r
} )();\r
\r
/**\r
 * Moves the UI focus to the element following this element in the tabindex order.\r
 *\r
 *		var element = CKEDITOR.document.getById( 'example' );\r
 *		element.focusNext();\r
 *\r
 * @param {Boolean} [ignoreChildren=false]\r
 * @param {Number} [indexToUse]\r
 * @member CKEDITOR.dom.element\r
 */\r
CKEDITOR.dom.element.prototype.focusNext = function( ignoreChildren, indexToUse ) {\r
	var curTabIndex = ( indexToUse === undefined ? this.getTabIndex() : indexToUse ),\r
		passedCurrent, enteredCurrent, elected, electedTabIndex, element, elementTabIndex;\r
\r
	if ( curTabIndex <= 0 ) {\r
		// If this element has tabindex <= 0 then we must simply look for any\r
		// element following it containing tabindex=0.\r
\r
		element = this.getNextSourceNode( ignoreChildren, CKEDITOR.NODE_ELEMENT );\r
\r
		while ( element ) {\r
			if ( element.isVisible() && element.getTabIndex() === 0 ) {\r
				elected = element;\r
				break;\r
			}\r
\r
			element = element.getNextSourceNode( false, CKEDITOR.NODE_ELEMENT );\r
		}\r
	} else {\r
		// If this element has tabindex > 0 then we must look for:\r
		//		1. An element following this element with the same tabindex.\r
		//		2. The first element in source other with the lowest tabindex\r
		//		   that is higher than this element tabindex.\r
		//		3. The first element with tabindex=0.\r
\r
		element = this.getDocument().getBody().getFirst();\r
\r
		while ( ( element = element.getNextSourceNode( false, CKEDITOR.NODE_ELEMENT ) ) ) {\r
			if ( !passedCurrent ) {\r
				if ( !enteredCurrent && element.equals( this ) ) {\r
					enteredCurrent = true;\r
\r
					// Ignore this element, if required.\r
					if ( ignoreChildren ) {\r
						if ( !( element = element.getNextSourceNode( true, CKEDITOR.NODE_ELEMENT ) ) )\r
							break;\r
						passedCurrent = 1;\r
					}\r
				} else if ( enteredCurrent && !this.contains( element ) ) {\r
					passedCurrent = 1;\r
				}\r
			}\r
\r
			if ( !element.isVisible() || ( elementTabIndex = element.getTabIndex() ) < 0 )\r
				continue;\r
\r
			if ( passedCurrent && elementTabIndex == curTabIndex ) {\r
				elected = element;\r
				break;\r
			}\r
\r
			if ( elementTabIndex > curTabIndex && ( !elected || !electedTabIndex || elementTabIndex < electedTabIndex ) ) {\r
				elected = element;\r
				electedTabIndex = elementTabIndex;\r
			} else if ( !elected && elementTabIndex === 0 ) {\r
				elected = element;\r
				electedTabIndex = elementTabIndex;\r
			}\r
		}\r
	}\r
\r
	if ( elected )\r
		elected.focus();\r
};\r
\r
/**\r
 * Moves the UI focus to the element before this element in the tabindex order.\r
 *\r
 *		var element = CKEDITOR.document.getById( 'example' );\r
 *		element.focusPrevious();\r
 *\r
 * @param {Boolean} [ignoreChildren=false]\r
 * @param {Number} [indexToUse]\r
 * @member CKEDITOR.dom.element\r
 */\r
CKEDITOR.dom.element.prototype.focusPrevious = function( ignoreChildren, indexToUse ) {\r
	var curTabIndex = ( indexToUse === undefined ? this.getTabIndex() : indexToUse ),\r
		passedCurrent, enteredCurrent, elected,\r
		electedTabIndex = 0,\r
		elementTabIndex;\r
\r
	var element = this.getDocument().getBody().getLast();\r
\r
	while ( ( element = element.getPreviousSourceNode( false, CKEDITOR.NODE_ELEMENT ) ) ) {\r
		if ( !passedCurrent ) {\r
			if ( !enteredCurrent && element.equals( this ) ) {\r
				enteredCurrent = true;\r
\r
				// Ignore this element, if required.\r
				if ( ignoreChildren ) {\r
					if ( !( element = element.getPreviousSourceNode( true, CKEDITOR.NODE_ELEMENT ) ) )\r
						break;\r
					passedCurrent = 1;\r
				}\r
			} else if ( enteredCurrent && !this.contains( element ) ) {\r
				passedCurrent = 1;\r
			}\r
		}\r
\r
		if ( !element.isVisible() || ( elementTabIndex = element.getTabIndex() ) < 0 )\r
			continue;\r
\r
		if ( curTabIndex <= 0 ) {\r
			// If this element has tabindex <= 0 then we must look for:\r
			//		1. An element before this one containing tabindex=0.\r
			//		2. The last element with the highest tabindex.\r
\r
			if ( passedCurrent && elementTabIndex === 0 ) {\r
				elected = element;\r
				break;\r
			}\r
\r
			if ( elementTabIndex > electedTabIndex ) {\r
				elected = element;\r
				electedTabIndex = elementTabIndex;\r
			}\r
		} else {\r
			// If this element has tabindex > 0 we must look for:\r
			//		1. An element preceeding this one, with the same tabindex.\r
			//		2. The last element in source other with the highest tabindex\r
			//		   that is lower than this element tabindex.\r
\r
			if ( passedCurrent && elementTabIndex == curTabIndex ) {\r
				elected = element;\r
				break;\r
			}\r
\r
			if ( elementTabIndex < curTabIndex && ( !elected || elementTabIndex > electedTabIndex ) ) {\r
				elected = element;\r
				electedTabIndex = elementTabIndex;\r
			}\r
		}\r
	}\r
\r
	if ( elected )\r
		elected.focus();\r
};\r
\r
/**\r
 * Intructs the editor to add a number of spaces (`&nbsp;`) to the text when\r
 * hitting the <kbd>Tab</kbd> key. If set to zero, the <kbd>Tab</kbd> key will be used to move the\r
 * cursor focus to the next element in the page, out of the editor focus.\r
 *\r
 *		config.tabSpaces = 4;\r
 *\r
 * @cfg {Number} [tabSpaces=0]\r
 * @member CKEDITOR.config\r
 */\r
\r
/**\r
 * Allow context-sensitive <kbd>Tab</kbd> key behaviors, including the following scenarios:\r
 *\r
 * When selection is anchored inside **table cells**:\r
 *\r
 * * If <kbd>Tab</kbd> is pressed, select the content of the "next" cell. If in the last\r
 *     cell in the table, add a new row to it and focus its first cell.\r
 * * If <kbd>Shift+Tab</kbd> is pressed, select the content of the "previous" cell.\r
 *     Do nothing when it is in the first cell.\r
 *\r
 * Example:\r
 *\r
 *		config.enableTabKeyTools = false;\r
 *\r
 * @cfg {Boolean} [enableTabKeyTools=true]\r
 * @member CKEDITOR.config\r
 */\r
\r
// If the <kbd>Tab</kbd> key is not supposed to be enabled for navigation, the following\r
// settings could be used alternatively:\r
// config.keystrokes.push(\r
//	[ CKEDITOR.ALT + 38 /*Arrow Up*/, 'selectPreviousCell' ],\r
//	[ CKEDITOR.ALT + 40 /*Arrow Down*/, 'selectNextCell' ]\r
// );\r