| 1 | /*
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| 2 | Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
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| 3 | For licensing, see LICENSE.html or http://ckeditor.com/license
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| 4 | */
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| 5 |
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| 6 | /**
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| 7 | * @file Blockquote.
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| 8 | */
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| 9 |
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| 10 | (function()
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| 11 | {
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| 12 | function getState( editor, path )
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| 13 | {
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| 14 | var firstBlock = path.block || path.blockLimit;
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| 15 |
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| 16 | if ( !firstBlock || firstBlock.getName() == 'body' )
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| 17 | return CKEDITOR.TRISTATE_OFF;
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| 18 |
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| 19 | // See if the first block has a blockquote parent.
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| 20 | if ( firstBlock.getAscendant( 'blockquote', true ) )
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| 21 | return CKEDITOR.TRISTATE_ON;
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| 22 |
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| 23 | return CKEDITOR.TRISTATE_OFF;
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| 24 | }
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| 25 |
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| 26 | function onSelectionChange( evt )
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| 27 | {
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| 28 | var editor = evt.editor;
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| 29 | if ( editor.readOnly )
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| 30 | return;
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| 31 |
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| 32 | var command = editor.getCommand( 'blockquote' );
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| 33 | command.state = getState( editor, evt.data.path );
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| 34 | command.fire( 'state' );
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| 35 | }
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| 36 |
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| 37 | function noBlockLeft( bqBlock )
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| 38 | {
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| 39 | for ( var i = 0, length = bqBlock.getChildCount(), child ; i < length && ( child = bqBlock.getChild( i ) ) ; i++ )
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| 40 | {
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| 41 | if ( child.type == CKEDITOR.NODE_ELEMENT && child.isBlockBoundary() )
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| 42 | return false;
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| 43 | }
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| 44 | return true;
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| 45 | }
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| 46 |
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| 47 | var commandObject =
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| 48 | {
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| 49 | exec : function( editor )
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| 50 | {
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| 51 | var state = editor.getCommand( 'blockquote' ).state,
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| 52 | selection = editor.getSelection(),
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| 53 | range = selection && selection.getRanges( true )[0];
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| 54 |
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| 55 | if ( !range )
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| 56 | return;
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| 57 |
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| 58 | var bookmarks = selection.createBookmarks();
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| 59 |
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| 60 | // Kludge for #1592: if the bookmark nodes are in the beginning of
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| 61 | // blockquote, then move them to the nearest block element in the
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| 62 | // blockquote.
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| 63 | if ( CKEDITOR.env.ie )
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| 64 | {
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| 65 | var bookmarkStart = bookmarks[0].startNode,
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| 66 | bookmarkEnd = bookmarks[0].endNode,
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| 67 | cursor;
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| 68 |
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| 69 | if ( bookmarkStart && bookmarkStart.getParent().getName() == 'blockquote' )
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| 70 | {
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| 71 | cursor = bookmarkStart;
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| 72 | while ( ( cursor = cursor.getNext() ) )
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| 73 | {
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| 74 | if ( cursor.type == CKEDITOR.NODE_ELEMENT &&
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| 75 | cursor.isBlockBoundary() )
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| 76 | {
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| 77 | bookmarkStart.move( cursor, true );
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| 78 | break;
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| 79 | }
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| 80 | }
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| 81 | }
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| 82 |
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| 83 | if ( bookmarkEnd
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| 84 | && bookmarkEnd.getParent().getName() == 'blockquote' )
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| 85 | {
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| 86 | cursor = bookmarkEnd;
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| 87 | while ( ( cursor = cursor.getPrevious() ) )
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| 88 | {
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| 89 | if ( cursor.type == CKEDITOR.NODE_ELEMENT &&
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| 90 | cursor.isBlockBoundary() )
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| 91 | {
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| 92 | bookmarkEnd.move( cursor );
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| 93 | break;
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| 94 | }
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| 95 | }
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| 96 | }
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| 97 | }
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| 98 |
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| 99 | var iterator = range.createIterator(),
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| 100 | block;
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| 101 | iterator.enlargeBr = editor.config.enterMode != CKEDITOR.ENTER_BR;
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| 102 |
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| 103 | if ( state == CKEDITOR.TRISTATE_OFF )
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| 104 | {
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| 105 | var paragraphs = [];
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| 106 | while ( ( block = iterator.getNextParagraph() ) )
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| 107 | paragraphs.push( block );
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| 108 |
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| 109 | // If no paragraphs, create one from the current selection position.
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| 110 | if ( paragraphs.length < 1 )
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| 111 | {
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| 112 | var para = editor.document.createElement( editor.config.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ),
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| 113 | firstBookmark = bookmarks.shift();
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| 114 | range.insertNode( para );
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| 115 | para.append( new CKEDITOR.dom.text( '\ufeff', editor.document ) );
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| 116 | range.moveToBookmark( firstBookmark );
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| 117 | range.selectNodeContents( para );
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| 118 | range.collapse( true );
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| 119 | firstBookmark = range.createBookmark();
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| 120 | paragraphs.push( para );
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| 121 | bookmarks.unshift( firstBookmark );
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| 122 | }
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| 123 |
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| 124 | // Make sure all paragraphs have the same parent.
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| 125 | var commonParent = paragraphs[0].getParent(),
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| 126 | tmp = [];
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| 127 | for ( var i = 0 ; i < paragraphs.length ; i++ )
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| 128 | {
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| 129 | block = paragraphs[i];
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| 130 | commonParent = commonParent.getCommonAncestor( block.getParent() );
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| 131 | }
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| 132 |
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| 133 | // The common parent must not be the following tags: table, tbody, tr, ol, ul.
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| 134 | var denyTags = { table : 1, tbody : 1, tr : 1, ol : 1, ul : 1 };
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| 135 | while ( denyTags[ commonParent.getName() ] )
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| 136 | commonParent = commonParent.getParent();
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| 137 |
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| 138 | // Reconstruct the block list to be processed such that all resulting blocks
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| 139 | // satisfy parentNode.equals( commonParent ).
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| 140 | var lastBlock = null;
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| 141 | while ( paragraphs.length > 0 )
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| 142 | {
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| 143 | block = paragraphs.shift();
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| 144 | while ( !block.getParent().equals( commonParent ) )
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| 145 | block = block.getParent();
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| 146 | if ( !block.equals( lastBlock ) )
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| 147 | tmp.push( block );
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| 148 | lastBlock = block;
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| 149 | }
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| 150 |
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| 151 | // If any of the selected blocks is a blockquote, remove it to prevent
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| 152 | // nested blockquotes.
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| 153 | while ( tmp.length > 0 )
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| 154 | {
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| 155 | block = tmp.shift();
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| 156 | if ( block.getName() == 'blockquote' )
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| 157 | {
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| 158 | var docFrag = new CKEDITOR.dom.documentFragment( editor.document );
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| 159 | while ( block.getFirst() )
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| 160 | {
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| 161 | docFrag.append( block.getFirst().remove() );
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| 162 | paragraphs.push( docFrag.getLast() );
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| 163 | }
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| 164 |
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| 165 | docFrag.replace( block );
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| 166 | }
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| 167 | else
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| 168 | paragraphs.push( block );
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| 169 | }
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| 170 |
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| 171 | // Now we have all the blocks to be included in a new blockquote node.
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| 172 | var bqBlock = editor.document.createElement( 'blockquote' );
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| 173 | bqBlock.insertBefore( paragraphs[0] );
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| 174 | while ( paragraphs.length > 0 )
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| 175 | {
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| 176 | block = paragraphs.shift();
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| 177 | bqBlock.append( block );
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| 178 | }
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| 179 | }
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| 180 | else if ( state == CKEDITOR.TRISTATE_ON )
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| 181 | {
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| 182 | var moveOutNodes = [],
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| 183 | database = {};
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| 184 |
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| 185 | while ( ( block = iterator.getNextParagraph() ) )
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| 186 | {
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| 187 | var bqParent = null,
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| 188 | bqChild = null;
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| 189 | while ( block.getParent() )
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| 190 | {
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| 191 | if ( block.getParent().getName() == 'blockquote' )
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| 192 | {
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| 193 | bqParent = block.getParent();
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| 194 | bqChild = block;
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| 195 | break;
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| 196 | }
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| 197 | block = block.getParent();
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| 198 | }
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| 199 |
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| 200 | // Remember the blocks that were recorded down in the moveOutNodes array
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| 201 | // to prevent duplicates.
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| 202 | if ( bqParent && bqChild && !bqChild.getCustomData( 'blockquote_moveout' ) )
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| 203 | {
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| 204 | moveOutNodes.push( bqChild );
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| 205 | CKEDITOR.dom.element.setMarker( database, bqChild, 'blockquote_moveout', true );
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| 206 | }
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| 207 | }
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| 208 |
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| 209 | CKEDITOR.dom.element.clearAllMarkers( database );
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| 210 |
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| 211 | var movedNodes = [],
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| 212 | processedBlockquoteBlocks = [];
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| 213 |
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| 214 | database = {};
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| 215 | while ( moveOutNodes.length > 0 )
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| 216 | {
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| 217 | var node = moveOutNodes.shift();
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| 218 | bqBlock = node.getParent();
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| 219 |
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| 220 | // If the node is located at the beginning or the end, just take it out
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| 221 | // without splitting. Otherwise, split the blockquote node and move the
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| 222 | // paragraph in between the two blockquote nodes.
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| 223 | if ( !node.getPrevious() )
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| 224 | node.remove().insertBefore( bqBlock );
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| 225 | else if ( !node.getNext() )
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| 226 | node.remove().insertAfter( bqBlock );
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| 227 | else
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| 228 | {
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| 229 | node.breakParent( node.getParent() );
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| 230 | processedBlockquoteBlocks.push( node.getNext() );
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| 231 | }
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| 232 |
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| 233 | // Remember the blockquote node so we can clear it later (if it becomes empty).
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| 234 | if ( !bqBlock.getCustomData( 'blockquote_processed' ) )
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| 235 | {
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| 236 | processedBlockquoteBlocks.push( bqBlock );
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| 237 | CKEDITOR.dom.element.setMarker( database, bqBlock, 'blockquote_processed', true );
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| 238 | }
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| 239 |
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| 240 | movedNodes.push( node );
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| 241 | }
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| 242 |
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| 243 | CKEDITOR.dom.element.clearAllMarkers( database );
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| 244 |
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| 245 | // Clear blockquote nodes that have become empty.
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| 246 | for ( i = processedBlockquoteBlocks.length - 1 ; i >= 0 ; i-- )
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| 247 | {
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| 248 | bqBlock = processedBlockquoteBlocks[i];
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| 249 | if ( noBlockLeft( bqBlock ) )
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| 250 | bqBlock.remove();
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| 251 | }
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| 252 |
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| 253 | if ( editor.config.enterMode == CKEDITOR.ENTER_BR )
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| 254 | {
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| 255 | var firstTime = true;
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| 256 | while ( movedNodes.length )
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| 257 | {
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| 258 | node = movedNodes.shift();
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| 259 |
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| 260 | if ( node.getName() == 'div' )
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| 261 | {
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| 262 | docFrag = new CKEDITOR.dom.documentFragment( editor.document );
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| 263 | var needBeginBr = firstTime && node.getPrevious() &&
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| 264 | !( node.getPrevious().type == CKEDITOR.NODE_ELEMENT && node.getPrevious().isBlockBoundary() );
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| 265 | if ( needBeginBr )
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| 266 | docFrag.append( editor.document.createElement( 'br' ) );
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| 267 |
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| 268 | var needEndBr = node.getNext() &&
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| 269 | !( node.getNext().type == CKEDITOR.NODE_ELEMENT && node.getNext().isBlockBoundary() );
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| 270 | while ( node.getFirst() )
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| 271 | node.getFirst().remove().appendTo( docFrag );
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| 272 |
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| 273 | if ( needEndBr )
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| 274 | docFrag.append( editor.document.createElement( 'br' ) );
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| 275 |
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| 276 | docFrag.replace( node );
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| 277 | firstTime = false;
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| 278 | }
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| 279 | }
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| 280 | }
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| 281 | }
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| 282 |
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| 283 | selection.selectBookmarks( bookmarks );
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| 284 | editor.focus();
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| 285 | }
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| 286 | };
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| 287 |
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| 288 | CKEDITOR.plugins.add( 'blockquote',
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| 289 | {
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| 290 | init : function( editor )
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| 291 | {
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| 292 | editor.addCommand( 'blockquote', commandObject );
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| 293 |
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| 294 | editor.ui.addButton( 'Blockquote',
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| 295 | {
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| 296 | label : editor.lang.blockquote,
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| 297 | command : 'blockquote'
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| 298 | } );
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| 299 |
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| 300 | editor.on( 'selectionChange', onSelectionChange );
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| 301 | },
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| 302 |
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| 303 | requires : [ 'domiterator' ]
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| 304 | } );
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| 305 | })();
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