X-Git-Url: https://scm.cri.ensmp.fr/git/ckeditor.git/blobdiff_plain/256592bf803e851aa7fc953e08a6e9e58d970f8c..871bad8291b6dbc29d489d95d185458caab25158:/skins/ckeditor/_source/plugins/bidi/plugin.js diff --git a/skins/ckeditor/_source/plugins/bidi/plugin.js b/skins/ckeditor/_source/plugins/bidi/plugin.js new file mode 100644 index 0000000..2233ee1 --- /dev/null +++ b/skins/ckeditor/_source/plugins/bidi/plugin.js @@ -0,0 +1,334 @@ +/* +Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved. +For licensing, see LICENSE.html or http://ckeditor.com/license +*/ + +(function() +{ + var guardElements = { table:1, ul:1, ol:1, blockquote:1, div:1 }, + directSelectionGuardElements = {}, + // All guard elements which can have a direction applied on them. + allGuardElements = {}; + CKEDITOR.tools.extend( directSelectionGuardElements, guardElements, { tr:1, p:1, div:1, li:1 } ); + CKEDITOR.tools.extend( allGuardElements, directSelectionGuardElements, { td:1 } ); + + function onSelectionChange( e ) + { + setToolbarStates( e ); + handleMixedDirContent( e ); + } + + function setToolbarStates( evt ) + { + var editor = evt.editor, + path = evt.data.path; + + if ( editor.readOnly ) + return; + + var useComputedState = editor.config.useComputedState, + selectedElement; + + useComputedState = useComputedState === undefined || useComputedState; + + // We can use computedState provided by the browser or traverse parents manually. + if ( !useComputedState ) + selectedElement = getElementForDirection( path.lastElement ); + + selectedElement = selectedElement || path.block || path.blockLimit; + + // If we're having BODY here, user probably done CTRL+A, let's try to get the enclosed node, if any. + if ( selectedElement.is( 'body' ) ) + { + var enclosedNode = editor.getSelection().getRanges()[ 0 ].getEnclosedNode(); + enclosedNode && enclosedNode.type == CKEDITOR.NODE_ELEMENT && ( selectedElement = enclosedNode ); + } + + if ( !selectedElement ) + return; + + var selectionDir = useComputedState ? + selectedElement.getComputedStyle( 'direction' ) : + selectedElement.getStyle( 'direction' ) || selectedElement.getAttribute( 'dir' ); + + editor.getCommand( 'bidirtl' ).setState( selectionDir == 'rtl' ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF ); + editor.getCommand( 'bidiltr' ).setState( selectionDir == 'ltr' ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF ); + } + + function handleMixedDirContent( evt ) + { + var editor = evt.editor, + directionNode = evt.data.path.block || evt.data.path.blockLimit; + + editor.fire( 'contentDirChanged', directionNode ? directionNode.getComputedStyle( 'direction' ) : editor.lang.dir ); + } + + /** + * Returns element with possibility of applying the direction. + * @param node + */ + function getElementForDirection( node ) + { + while ( node && !( node.getName() in allGuardElements || node.is( 'body' ) ) ) + { + var parent = node.getParent(); + if ( !parent ) + break; + + node = parent; + } + + return node; + } + + function switchDir( element, dir, editor, database ) + { + if ( element.isReadOnly() ) + return; + + // Mark this element as processed by switchDir. + CKEDITOR.dom.element.setMarker( database, element, 'bidi_processed', 1 ); + + // Check whether one of the ancestors has already been styled. + var parent = element; + while ( ( parent = parent.getParent() ) && !parent.is( 'body' ) ) + { + if ( parent.getCustomData( 'bidi_processed' ) ) + { + // Ancestor style must dominate. + element.removeStyle( 'direction' ); + element.removeAttribute( 'dir' ); + return; + } + } + + var useComputedState = ( 'useComputedState' in editor.config ) ? editor.config.useComputedState : 1; + + var elementDir = useComputedState ? element.getComputedStyle( 'direction' ) + : element.getStyle( 'direction' ) || element.hasAttribute( 'dir' ); + + // Stop if direction is same as present. + if ( elementDir == dir ) + return; + + // Clear direction on this element. + element.removeStyle( 'direction' ); + + // Do the second check when computed state is ON, to check + // if we need to apply explicit direction on this element. + if ( useComputedState ) + { + element.removeAttribute( 'dir' ); + if ( dir != element.getComputedStyle( 'direction' ) ) + element.setAttribute( 'dir', dir ); + } + else + // Set new direction for this element. + element.setAttribute( 'dir', dir ); + + editor.forceNextSelectionCheck(); + + return; + } + + function getFullySelected( range, elements, enterMode ) + { + var ancestor = range.getCommonAncestor( false, true ); + + range = range.clone(); + range.enlarge( enterMode == CKEDITOR.ENTER_BR ? + CKEDITOR.ENLARGE_LIST_ITEM_CONTENTS + : CKEDITOR.ENLARGE_BLOCK_CONTENTS ); + + if ( range.checkBoundaryOfElement( ancestor, CKEDITOR.START ) + && range.checkBoundaryOfElement( ancestor, CKEDITOR.END ) ) + { + var parent; + while ( ancestor && ancestor.type == CKEDITOR.NODE_ELEMENT + && ( parent = ancestor.getParent() ) + && parent.getChildCount() == 1 + && !( ancestor.getName() in elements ) ) + ancestor = parent; + + return ancestor.type == CKEDITOR.NODE_ELEMENT + && ( ancestor.getName() in elements ) + && ancestor; + } + } + + function bidiCommand( dir ) + { + return function( editor ) + { + var selection = editor.getSelection(), + enterMode = editor.config.enterMode, + ranges = selection.getRanges(); + + if ( ranges && ranges.length ) + { + var database = {}; + + // Creates bookmarks for selection, as we may split some blocks. + var bookmarks = selection.createBookmarks(); + + var rangeIterator = ranges.createIterator(), + range, + i = 0; + + while ( ( range = rangeIterator.getNextRange( 1 ) ) ) + { + // Apply do directly selected elements from guardElements. + var selectedElement = range.getEnclosedNode(); + + // If this is not our element of interest, apply to fully selected elements from guardElements. + if ( !selectedElement || selectedElement + && !( selectedElement.type == CKEDITOR.NODE_ELEMENT && selectedElement.getName() in directSelectionGuardElements ) + ) + selectedElement = getFullySelected( range, guardElements, enterMode ); + + selectedElement && switchDir( selectedElement, dir, editor, database ); + + var iterator, + block; + + // Walker searching for guardElements. + var walker = new CKEDITOR.dom.walker( range ); + + var start = bookmarks[ i ].startNode, + end = bookmarks[ i++ ].endNode; + + walker.evaluator = function( node ) + { + return !! ( node.type == CKEDITOR.NODE_ELEMENT + && node.getName() in guardElements + && !( node.getName() == ( enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ) + && node.getParent().type == CKEDITOR.NODE_ELEMENT + && node.getParent().getName() == 'blockquote' ) + // Element must be fully included in the range as well. (#6485). + && node.getPosition( start ) & CKEDITOR.POSITION_FOLLOWING + && ( ( node.getPosition( end ) & CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_CONTAINS ) == CKEDITOR.POSITION_PRECEDING ) ); + }; + + while ( ( block = walker.next() ) ) + switchDir( block, dir, editor, database ); + + iterator = range.createIterator(); + iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR; + + while ( ( block = iterator.getNextParagraph( enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ) ) ) + switchDir( block, dir, editor, database ); + } + + CKEDITOR.dom.element.clearAllMarkers( database ); + + editor.forceNextSelectionCheck(); + // Restore selection position. + selection.selectBookmarks( bookmarks ); + + editor.focus(); + } + }; + } + + CKEDITOR.plugins.add( 'bidi', + { + requires : [ 'styles', 'button' ], + + init : function( editor ) + { + // All buttons use the same code to register. So, to avoid + // duplications, let's use this tool function. + var addButtonCommand = function( buttonName, buttonLabel, commandName, commandExec ) + { + editor.addCommand( commandName, new CKEDITOR.command( editor, { exec : commandExec }) ); + + editor.ui.addButton( buttonName, + { + label : buttonLabel, + command : commandName + }); + }; + + var lang = editor.lang.bidi; + + addButtonCommand( 'BidiLtr', lang.ltr, 'bidiltr', bidiCommand( 'ltr' ) ); + addButtonCommand( 'BidiRtl', lang.rtl, 'bidirtl', bidiCommand( 'rtl' ) ); + + editor.on( 'selectionChange', onSelectionChange ); + editor.on( 'contentDom', function() + { + editor.document.on( 'dirChanged', function( evt ) + { + editor.fire( 'dirChanged', + { + node : evt.data, + dir : evt.data.getDirection( 1 ) + } ); + }); + }); + } + }); + + // If the element direction changed, we need to switch the margins of + // the element and all its children, so it will get really reflected + // like a mirror. (#5910) + function isOffline( el ) + { + var html = el.getDocument().getBody().getParent(); + while ( el ) + { + if ( el.equals( html ) ) + return false; + el = el.getParent(); + } + return true; + } + function dirChangeNotifier( org ) + { + var isAttribute = org == elementProto.setAttribute, + isRemoveAttribute = org == elementProto.removeAttribute, + dirStyleRegexp = /\bdirection\s*:\s*(.*?)\s*(:?$|;)/; + + return function( name, val ) + { + if ( !this.getDocument().equals( CKEDITOR.document ) ) + { + var orgDir; + if ( ( name == ( isAttribute || isRemoveAttribute ? 'dir' : 'direction' ) || + name == 'style' && ( isRemoveAttribute || dirStyleRegexp.test( val ) ) ) && !isOffline( this ) ) + { + orgDir = this.getDirection( 1 ); + var retval = org.apply( this, arguments ); + if ( orgDir != this.getDirection( 1 ) ) + { + this.getDocument().fire( 'dirChanged', this ); + return retval; + } + } + } + + return org.apply( this, arguments ); + }; + } + + var elementProto = CKEDITOR.dom.element.prototype, + methods = [ 'setStyle', 'removeStyle', 'setAttribute', 'removeAttribute' ]; + for ( var i = 0; i < methods.length; i++ ) + elementProto[ methods[ i ] ] = CKEDITOR.tools.override( elementProto[ methods [ i ] ], dirChangeNotifier ); +})(); + +/** + * Fired when the language direction of an element is changed + * @name CKEDITOR.editor#dirChanged + * @event + * @param {CKEDITOR.editor} editor This editor instance. + * @param {Object} eventData.node The element that is being changed. + * @param {String} eventData.dir The new direction. + */ + +/** + * Fired when the language direction in the specific cursor position is changed + * @name CKEDITOR.editor#contentDirChanged + * @event + * @param {String} eventData The direction in the current position. + */