| 1 | /*
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| 2 | Copyright (c) 2003-2009, 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 Increse and decrease indent commands.
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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 | var listNodeNames = { ol : 1, ul : 1 };
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| 13 |
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| 14 | function setState( editor, state )
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| 15 | {
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| 16 | editor.getCommand( this.name ).setState( state );
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| 17 | }
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| 18 |
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| 19 | function onSelectionChange( evt )
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| 20 | {
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| 21 | var elements = evt.data.path.elements,
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| 22 | listNode, listItem,
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| 23 | editor = evt.editor;
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| 24 |
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| 25 | for ( var i = 0 ; i < elements.length ; i++ )
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| 26 | {
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| 27 | if ( elements[i].getName() == 'li' )
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| 28 | {
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| 29 | listItem = elements[i];
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| 30 | continue;
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| 31 | }
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| 32 | if ( listNodeNames[ elements[i].getName() ] )
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| 33 | {
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| 34 | listNode = elements[i];
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| 35 | break;
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| 36 | }
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| 37 | }
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| 38 |
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| 39 | if ( listNode )
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| 40 | {
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| 41 | if ( this.name == 'outdent' )
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| 42 | return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
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| 43 | else
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| 44 | {
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| 45 | while ( listItem && ( listItem = listItem.getPrevious( CKEDITOR.dom.walker.whitespaces( true ) ) ) )
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| 46 | {
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| 47 | if ( listItem.getName && listItem.getName() == 'li' )
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| 48 | return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
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| 49 | }
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| 50 | return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
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| 51 | }
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| 52 | }
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| 53 |
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| 54 | if ( !this.useIndentClasses && this.name == 'indent' )
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| 55 | return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
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| 56 |
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| 57 | var path = evt.data.path,
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| 58 | firstBlock = path.block || path.blockLimit;
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| 59 | if ( !firstBlock )
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| 60 | return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
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| 61 |
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| 62 | if ( this.useIndentClasses )
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| 63 | {
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| 64 | var indentClass = firstBlock.$.className.match( this.classNameRegex ),
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| 65 | indentStep = 0;
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| 66 | if ( indentClass )
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| 67 | {
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| 68 | indentClass = indentClass[1];
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| 69 | indentStep = this.indentClassMap[ indentClass ];
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| 70 | }
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| 71 | if ( ( this.name == 'outdent' && !indentStep ) ||
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| 72 | ( this.name == 'indent' && indentStep == editor.config.indentClasses.length ) )
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| 73 | return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
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| 74 | return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
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| 75 | }
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| 76 | else
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| 77 | {
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| 78 | var indent = parseInt( firstBlock.getStyle( this.indentCssProperty ), 10 );
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| 79 | if ( isNaN( indent ) )
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| 80 | indent = 0;
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| 81 | if ( indent <= 0 )
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| 82 | return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
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| 83 | return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
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| 84 | }
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| 85 | }
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| 86 |
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| 87 | function indentList( editor, range, listNode )
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| 88 | {
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| 89 | // Our starting and ending points of the range might be inside some blocks under a list item...
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| 90 | // So before playing with the iterator, we need to expand the block to include the list items.
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| 91 | var startContainer = range.startContainer,
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| 92 | endContainer = range.endContainer;
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| 93 | while ( startContainer && !startContainer.getParent().equals( listNode ) )
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| 94 | startContainer = startContainer.getParent();
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| 95 | while ( endContainer && !endContainer.getParent().equals( listNode ) )
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| 96 | endContainer = endContainer.getParent();
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| 97 |
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| 98 | if ( !startContainer || !endContainer )
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| 99 | return;
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| 100 |
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| 101 | // Now we can iterate over the individual items on the same tree depth.
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| 102 | var block = startContainer,
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| 103 | itemsToMove = [],
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| 104 | stopFlag = false;
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| 105 | while ( !stopFlag )
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| 106 | {
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| 107 | if ( block.equals( endContainer ) )
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| 108 | stopFlag = true;
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| 109 | itemsToMove.push( block );
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| 110 | block = block.getNext();
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| 111 | }
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| 112 | if ( itemsToMove.length < 1 )
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| 113 | return;
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| 114 |
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| 115 | // Do indent or outdent operations on the array model of the list, not the
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| 116 | // list's DOM tree itself. The array model demands that it knows as much as
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| 117 | // possible about the surrounding lists, we need to feed it the further
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| 118 | // ancestor node that is still a list.
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| 119 | var listParents = listNode.getParents( true );
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| 120 | for ( var i = 0 ; i < listParents.length ; i++ )
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| 121 | {
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| 122 | if ( listParents[i].getName && listNodeNames[ listParents[i].getName() ] )
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| 123 | {
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| 124 | listNode = listParents[i];
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| 125 | break;
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| 126 | }
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| 127 | }
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| 128 | var indentOffset = this.name == 'indent' ? 1 : -1,
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| 129 | startItem = itemsToMove[0],
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| 130 | lastItem = itemsToMove[ itemsToMove.length - 1 ],
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| 131 | database = {};
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| 132 |
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| 133 | // Convert the list DOM tree into a one dimensional array.
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| 134 | var listArray = CKEDITOR.plugins.list.listToArray( listNode, database );
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| 135 |
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| 136 | // Apply indenting or outdenting on the array.
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| 137 | var baseIndent = listArray[ lastItem.getCustomData( 'listarray_index' ) ].indent;
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| 138 | for ( i = startItem.getCustomData( 'listarray_index' ) ; i <= lastItem.getCustomData( 'listarray_index' ) ; i++ )
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| 139 | listArray[i].indent += indentOffset;
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| 140 | for ( i = lastItem.getCustomData( 'listarray_index' ) + 1 ;
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| 141 | i < listArray.length && listArray[i].indent > baseIndent ; i++ )
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| 142 | listArray[i].indent += indentOffset;
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| 143 |
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| 144 | // Convert the array back to a DOM forest (yes we might have a few subtrees now).
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| 145 | // And replace the old list with the new forest.
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| 146 | var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode, 0 );
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| 147 |
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| 148 | // Avoid nested <li> after outdent even they're visually same,
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| 149 | // recording them for later refactoring.(#3982)
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| 150 | if ( this.name == 'outdent' )
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| 151 | {
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| 152 | var parentLiElement;
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| 153 | if ( ( parentLiElement = listNode.getParent() ) && parentLiElement.is( 'li' ) )
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| 154 | {
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| 155 | var children = newList.listNode.getChildren(),
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| 156 | pendingLis = [],
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| 157 | count = children.count(),
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| 158 | child;
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| 159 |
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| 160 | for ( i = count - 1 ; i >= 0 ; i-- )
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| 161 | {
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| 162 | if( ( child = children.getItem( i ) ) && child.is && child.is( 'li' ) )
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| 163 | pendingLis.push( child );
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| 164 | }
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| 165 | }
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| 166 | }
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| 167 |
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| 168 | if ( newList )
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| 169 | newList.listNode.replace( listNode );
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| 170 |
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| 171 | // Move the nested <li> to be appeared after the parent.
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| 172 | if ( pendingLis && pendingLis.length )
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| 173 | {
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| 174 | for ( i = 0; i < pendingLis.length ; i++ )
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| 175 | {
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| 176 | var li = pendingLis[ i ],
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| 177 | followingList = li;
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| 178 |
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| 179 | // Nest preceding <ul>/<ol> inside current <li> if any.
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| 180 | while( ( followingList = followingList.getNext() ) &&
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| 181 | followingList.is &&
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| 182 | followingList.getName() in listNodeNames )
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| 183 | {
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| 184 | li.append( followingList );
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| 185 | }
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| 186 |
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| 187 | li.insertAfter( parentLiElement );
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | // Clean up the markers.
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| 192 | CKEDITOR.dom.element.clearAllMarkers( database );
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| 193 | }
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| 194 |
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| 195 | function indentBlock( editor, range )
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| 196 | {
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| 197 | var iterator = range.createIterator(),
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| 198 | enterMode = editor.config.enterMode;
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| 199 | iterator.enforceRealBlocks = true;
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| 200 | iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR;
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| 201 | var block;
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| 202 | while ( ( block = iterator.getNextParagraph() ) )
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| 203 | {
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| 204 |
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| 205 | if ( this.useIndentClasses )
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| 206 | {
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| 207 | // Transform current class name to indent step index.
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| 208 | var indentClass = block.$.className.match( this.classNameRegex ),
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| 209 | indentStep = 0;
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| 210 | if ( indentClass )
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| 211 | {
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| 212 | indentClass = indentClass[1];
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| 213 | indentStep = this.indentClassMap[ indentClass ];
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| 214 | }
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| 215 |
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| 216 | // Operate on indent step index, transform indent step index back to class
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| 217 | // name.
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| 218 | if ( this.name == 'outdent' )
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| 219 | indentStep--;
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| 220 | else
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| 221 | indentStep++;
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| 222 | indentStep = Math.min( indentStep, editor.config.indentClasses.length );
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| 223 | indentStep = Math.max( indentStep, 0 );
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| 224 | var className = CKEDITOR.tools.ltrim( block.$.className.replace( this.classNameRegex, '' ) );
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| 225 | if ( indentStep < 1 )
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| 226 | block.$.className = className;
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| 227 | else
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| 228 | block.addClass( editor.config.indentClasses[ indentStep - 1 ] );
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| 229 | }
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| 230 | else
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| 231 | {
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| 232 | var currentOffset = parseInt( block.getStyle( this.indentCssProperty ), 10 );
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| 233 | if ( isNaN( currentOffset ) )
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| 234 | currentOffset = 0;
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| 235 | currentOffset += ( this.name == 'indent' ? 1 : -1 ) * editor.config.indentOffset;
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| 236 | currentOffset = Math.max( currentOffset, 0 );
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| 237 | currentOffset = Math.ceil( currentOffset / editor.config.indentOffset ) * editor.config.indentOffset;
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| 238 | block.setStyle( this.indentCssProperty, currentOffset ? currentOffset + editor.config.indentUnit : '' );
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| 239 | if ( block.getAttribute( 'style' ) === '' )
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| 240 | block.removeAttribute( 'style' );
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| 241 | }
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| 242 | }
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| 243 | }
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| 244 |
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| 245 | function indentCommand( editor, name )
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| 246 | {
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| 247 | this.name = name;
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| 248 | this.useIndentClasses = editor.config.indentClasses && editor.config.indentClasses.length > 0;
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| 249 | if ( this.useIndentClasses )
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| 250 | {
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| 251 | this.classNameRegex = new RegExp( '(?:^|\\s+)(' + editor.config.indentClasses.join( '|' ) + ')(?=$|\\s)' );
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| 252 | this.indentClassMap = {};
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| 253 | for ( var i = 0 ; i < editor.config.indentClasses.length ; i++ )
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| 254 | this.indentClassMap[ editor.config.indentClasses[i] ] = i + 1;
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| 255 | }
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| 256 | else
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| 257 | this.indentCssProperty = editor.config.contentsLangDirection == 'ltr' ? 'margin-left' : 'margin-right';
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| 258 | }
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| 259 |
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| 260 | indentCommand.prototype = {
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| 261 | exec : function( editor )
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| 262 | {
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| 263 | var selection = editor.getSelection(),
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| 264 | range = selection && selection.getRanges()[0];
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| 265 |
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| 266 | if ( !selection || !range )
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| 267 | return;
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| 268 |
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| 269 | var bookmarks = selection.createBookmarks( true ),
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| 270 | nearestListBlock = range.getCommonAncestor();
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| 271 |
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| 272 | while ( nearestListBlock && !( nearestListBlock.type == CKEDITOR.NODE_ELEMENT &&
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| 273 | listNodeNames[ nearestListBlock.getName() ] ) )
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| 274 | nearestListBlock = nearestListBlock.getParent();
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| 275 |
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| 276 | if ( nearestListBlock )
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| 277 | indentList.call( this, editor, range, nearestListBlock );
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| 278 | else
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| 279 | indentBlock.call( this, editor, range );
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| 280 |
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| 281 | editor.focus();
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| 282 | editor.forceNextSelectionCheck();
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| 283 | selection.selectBookmarks( bookmarks );
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| 284 | }
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| 285 | };
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| 286 |
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| 287 | CKEDITOR.plugins.add( 'indent',
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| 288 | {
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| 289 | init : function( editor )
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| 290 | {
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| 291 | // Register commands.
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| 292 | var indent = new indentCommand( editor, 'indent' ),
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| 293 | outdent = new indentCommand( editor, 'outdent' );
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| 294 | editor.addCommand( 'indent', indent );
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| 295 | editor.addCommand( 'outdent', outdent );
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| 296 |
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| 297 | // Register the toolbar buttons.
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| 298 | editor.ui.addButton( 'Indent',
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| 299 | {
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| 300 | label : editor.lang.indent,
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| 301 | command : 'indent'
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| 302 | });
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| 303 | editor.ui.addButton( 'Outdent',
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| 304 | {
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| 305 | label : editor.lang.outdent,
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| 306 | command : 'outdent'
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| 307 | });
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| 308 |
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| 309 | // Register the state changing handlers.
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| 310 | editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, indent ) );
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| 311 | editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, outdent ) );
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| 312 | },
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| 313 |
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| 314 | requires : [ 'domiterator', 'list' ]
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| 315 | } );
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| 316 | })();
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| 317 |
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| 318 | CKEDITOR.tools.extend( CKEDITOR.config,
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| 319 | {
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| 320 | indentOffset : 40,
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| 321 | indentUnit : 'px',
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| 322 | indentClasses : null
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| 323 | });
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