--- /dev/null
+/*\r
+Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.\r
+For licensing, see LICENSE.html or http://ckeditor.com/license\r
+*/\r
+\r
+/**\r
+ * @file DOM iterator, which iterates over list items, lines and paragraphs.\r
+ */\r
+\r
+CKEDITOR.plugins.add( 'domiterator' );\r
+\r
+(function()\r
+{\r
+ /**\r
+ * @name CKEDITOR.dom.iterator\r
+ */\r
+ function iterator( range )\r
+ {\r
+ if ( arguments.length < 1 )\r
+ return;\r
+\r
+ this.range = range;\r
+ this.forceBrBreak = 0;\r
+\r
+ // Whether include <br>s into the enlarged range.(#3730).\r
+ this.enlargeBr = 1;\r
+ this.enforceRealBlocks = 0;\r
+\r
+ this._ || ( this._ = {} );\r
+ }\r
+\r
+ var beginWhitespaceRegex = /^[\r\n\t ]+$/,\r
+ // Ignore bookmark nodes.(#3783)\r
+ bookmarkGuard = CKEDITOR.dom.walker.bookmark( false, true ),\r
+ whitespacesGuard = CKEDITOR.dom.walker.whitespaces( true ),\r
+ skipGuard = function( node ) { return bookmarkGuard( node ) && whitespacesGuard( node ); };\r
+\r
+ // Get a reference for the next element, bookmark nodes are skipped.\r
+ function getNextSourceNode( node, startFromSibling, lastNode )\r
+ {\r
+ var next = node.getNextSourceNode( startFromSibling, null, lastNode );\r
+ while ( !bookmarkGuard( next ) )\r
+ next = next.getNextSourceNode( startFromSibling, null, lastNode );\r
+ return next;\r
+ }\r
+\r
+ iterator.prototype = {\r
+ getNextParagraph : function( blockTag )\r
+ {\r
+ // The block element to be returned.\r
+ var block;\r
+\r
+ // The range object used to identify the paragraph contents.\r
+ var range;\r
+\r
+ // Indicats that the current element in the loop is the last one.\r
+ var isLast;\r
+\r
+ // Indicate at least one of the range boundaries is inside a preformat block.\r
+ var touchPre;\r
+\r
+ // Instructs to cleanup remaining BRs.\r
+ var removePreviousBr, removeLastBr;\r
+\r
+ // This is the first iteration. Let's initialize it.\r
+ if ( !this._.lastNode )\r
+ {\r
+ range = this.range.clone();\r
+\r
+ // Shrink the range to exclude harmful "noises" (#4087, #4450, #5435).\r
+ range.shrink( CKEDITOR.NODE_ELEMENT, true );\r
+\r
+ touchPre = range.endContainer.hasAscendant( 'pre', true )\r
+ || range.startContainer.hasAscendant( 'pre', true );\r
+\r
+ range.enlarge( this.forceBrBreak && !touchPre || !this.enlargeBr ?\r
+ CKEDITOR.ENLARGE_LIST_ITEM_CONTENTS : CKEDITOR.ENLARGE_BLOCK_CONTENTS );\r
+\r
+ var walker = new CKEDITOR.dom.walker( range ),\r
+ ignoreBookmarkTextEvaluator = CKEDITOR.dom.walker.bookmark( true, true );\r
+ // Avoid anchor inside bookmark inner text.\r
+ walker.evaluator = ignoreBookmarkTextEvaluator;\r
+ this._.nextNode = walker.next();\r
+ // TODO: It's better to have walker.reset() used here.\r
+ walker = new CKEDITOR.dom.walker( range );\r
+ walker.evaluator = ignoreBookmarkTextEvaluator;\r
+ var lastNode = walker.previous();\r
+ this._.lastNode = lastNode.getNextSourceNode( true );\r
+\r
+ // We may have an empty text node at the end of block due to [3770].\r
+ // If that node is the lastNode, it would cause our logic to leak to the\r
+ // next block.(#3887)\r
+ if ( this._.lastNode &&\r
+ this._.lastNode.type == CKEDITOR.NODE_TEXT &&\r
+ !CKEDITOR.tools.trim( this._.lastNode.getText() ) &&\r
+ this._.lastNode.getParent().isBlockBoundary() )\r
+ {\r
+ var testRange = new CKEDITOR.dom.range( range.document );\r
+ testRange.moveToPosition( this._.lastNode, CKEDITOR.POSITION_AFTER_END );\r
+ if ( testRange.checkEndOfBlock() )\r
+ {\r
+ var path = new CKEDITOR.dom.elementPath( testRange.endContainer );\r
+ var lastBlock = path.block || path.blockLimit;\r
+ this._.lastNode = lastBlock.getNextSourceNode( true );\r
+ }\r
+ }\r
+\r
+ // Probably the document end is reached, we need a marker node.\r
+ if ( !this._.lastNode )\r
+ {\r
+ this._.lastNode = this._.docEndMarker = range.document.createText( '' );\r
+ this._.lastNode.insertAfter( lastNode );\r
+ }\r
+\r
+ // Let's reuse this variable.\r
+ range = null;\r
+ }\r
+\r
+ var currentNode = this._.nextNode;\r
+ lastNode = this._.lastNode;\r
+\r
+ this._.nextNode = null;\r
+ while ( currentNode )\r
+ {\r
+ // closeRange indicates that a paragraph boundary has been found,\r
+ // so the range can be closed.\r
+ var closeRange = 0,\r
+ parentPre = currentNode.hasAscendant( 'pre' );\r
+\r
+ // includeNode indicates that the current node is good to be part\r
+ // of the range. By default, any non-element node is ok for it.\r
+ var includeNode = ( currentNode.type != CKEDITOR.NODE_ELEMENT ),\r
+ continueFromSibling = 0;\r
+\r
+ // If it is an element node, let's check if it can be part of the\r
+ // range.\r
+ if ( !includeNode )\r
+ {\r
+ var nodeName = currentNode.getName();\r
+\r
+ if ( currentNode.isBlockBoundary( this.forceBrBreak &&\r
+ !parentPre && { br : 1 } ) )\r
+ {\r
+ // <br> boundaries must be part of the range. It will\r
+ // happen only if ForceBrBreak.\r
+ if ( nodeName == 'br' )\r
+ includeNode = 1;\r
+ else if ( !range && !currentNode.getChildCount() && nodeName != 'hr' )\r
+ {\r
+ // If we have found an empty block, and haven't started\r
+ // the range yet, it means we must return this block.\r
+ block = currentNode;\r
+ isLast = currentNode.equals( lastNode );\r
+ break;\r
+ }\r
+\r
+ // The range must finish right before the boundary,\r
+ // including possibly skipped empty spaces. (#1603)\r
+ if ( range )\r
+ {\r
+ range.setEndAt( currentNode, CKEDITOR.POSITION_BEFORE_START );\r
+\r
+ // The found boundary must be set as the next one at this\r
+ // point. (#1717)\r
+ if ( nodeName != 'br' )\r
+ this._.nextNode = currentNode;\r
+ }\r
+\r
+ closeRange = 1;\r
+ }\r
+ else\r
+ {\r
+ // If we have child nodes, let's check them.\r
+ if ( currentNode.getFirst() )\r
+ {\r
+ // If we don't have a range yet, let's start it.\r
+ if ( !range )\r
+ {\r
+ range = new CKEDITOR.dom.range( this.range.document );\r
+ range.setStartAt( currentNode, CKEDITOR.POSITION_BEFORE_START );\r
+ }\r
+\r
+ currentNode = currentNode.getFirst();\r
+ continue;\r
+ }\r
+ includeNode = 1;\r
+ }\r
+ }\r
+ else if ( currentNode.type == CKEDITOR.NODE_TEXT )\r
+ {\r
+ // Ignore normal whitespaces (i.e. not including or\r
+ // other unicode whitespaces) before/after a block node.\r
+ if ( beginWhitespaceRegex.test( currentNode.getText() ) )\r
+ includeNode = 0;\r
+ }\r
+\r
+ // The current node is good to be part of the range and we are\r
+ // starting a new range, initialize it first.\r
+ if ( includeNode && !range )\r
+ {\r
+ range = new CKEDITOR.dom.range( this.range.document );\r
+ range.setStartAt( currentNode, CKEDITOR.POSITION_BEFORE_START );\r
+ }\r
+\r
+ // The last node has been found.\r
+ isLast = ( ( !closeRange || includeNode ) && currentNode.equals( lastNode ) );\r
+\r
+ // If we are in an element boundary, let's check if it is time\r
+ // to close the range, otherwise we include the parent within it.\r
+ if ( range && !closeRange )\r
+ {\r
+ while ( !currentNode.getNext( skipGuard ) && !isLast )\r
+ {\r
+ var parentNode = currentNode.getParent();\r
+\r
+ if ( parentNode.isBlockBoundary( this.forceBrBreak\r
+ && !parentPre && { br : 1 } ) )\r
+ {\r
+ closeRange = 1;\r
+ includeNode = 0;\r
+ isLast = isLast || ( parentNode.equals( lastNode) );\r
+ // Make sure range includes bookmarks at the end of the block. (#7359)\r
+ range.setEndAt( parentNode, CKEDITOR.POSITION_BEFORE_END );\r
+ break;\r
+ }\r
+\r
+ currentNode = parentNode;\r
+ includeNode = 1;\r
+ isLast = ( currentNode.equals( lastNode ) );\r
+ continueFromSibling = 1;\r
+ }\r
+ }\r
+\r
+ // Now finally include the node.\r
+ if ( includeNode )\r
+ range.setEndAt( currentNode, CKEDITOR.POSITION_AFTER_END );\r
+\r
+ currentNode = getNextSourceNode ( currentNode, continueFromSibling, lastNode );\r
+ isLast = !currentNode;\r
+\r
+ // We have found a block boundary. Let's close the range and move out of the\r
+ // loop.\r
+ if ( isLast || ( closeRange && range ) )\r
+ break;\r
+ }\r
+\r
+ // Now, based on the processed range, look for (or create) the block to be returned.\r
+ if ( !block )\r
+ {\r
+ // If no range has been found, this is the end.\r
+ if ( !range )\r
+ {\r
+ this._.docEndMarker && this._.docEndMarker.remove();\r
+ this._.nextNode = null;\r
+ return null;\r
+ }\r
+\r
+ var startPath = new CKEDITOR.dom.elementPath( range.startContainer );\r
+ var startBlockLimit = startPath.blockLimit,\r
+ checkLimits = { div : 1, th : 1, td : 1 };\r
+ block = startPath.block;\r
+\r
+ if ( !block\r
+ && !this.enforceRealBlocks\r
+ && checkLimits[ startBlockLimit.getName() ]\r
+ && range.checkStartOfBlock()\r
+ && range.checkEndOfBlock() )\r
+ block = startBlockLimit;\r
+ else if ( !block || ( this.enforceRealBlocks && block.getName() == 'li' ) )\r
+ {\r
+ // Create the fixed block.\r
+ block = this.range.document.createElement( blockTag || 'p' );\r
+\r
+ // Move the contents of the temporary range to the fixed block.\r
+ range.extractContents().appendTo( block );\r
+ block.trim();\r
+\r
+ // Insert the fixed block into the DOM.\r
+ range.insertNode( block );\r
+\r
+ removePreviousBr = removeLastBr = true;\r
+ }\r
+ else if ( block.getName() != 'li' )\r
+ {\r
+ // If the range doesn't includes the entire contents of the\r
+ // block, we must split it, isolating the range in a dedicated\r
+ // block.\r
+ if ( !range.checkStartOfBlock() || !range.checkEndOfBlock() )\r
+ {\r
+ // The resulting block will be a clone of the current one.\r
+ block = block.clone( false );\r
+\r
+ // Extract the range contents, moving it to the new block.\r
+ range.extractContents().appendTo( block );\r
+ block.trim();\r
+\r
+ // Split the block. At this point, the range will be in the\r
+ // right position for our intents.\r
+ var splitInfo = range.splitBlock();\r
+\r
+ removePreviousBr = !splitInfo.wasStartOfBlock;\r
+ removeLastBr = !splitInfo.wasEndOfBlock;\r
+\r
+ // Insert the new block into the DOM.\r
+ range.insertNode( block );\r
+ }\r
+ }\r
+ else if ( !isLast )\r
+ {\r
+ // LIs are returned as is, with all their children (due to the\r
+ // nested lists). But, the next node is the node right after\r
+ // the current range, which could be an <li> child (nested\r
+ // lists) or the next sibling <li>.\r
+\r
+ this._.nextNode = ( block.equals( lastNode ) ? null : getNextSourceNode( range.getBoundaryNodes().endNode, 1, lastNode ) );\r
+ }\r
+ }\r
+\r
+ if ( removePreviousBr )\r
+ {\r
+ var previousSibling = block.getPrevious();\r
+ if ( previousSibling && previousSibling.type == CKEDITOR.NODE_ELEMENT )\r
+ {\r
+ if ( previousSibling.getName() == 'br' )\r
+ previousSibling.remove();\r
+ else if ( previousSibling.getLast() && previousSibling.getLast().$.nodeName.toLowerCase() == 'br' )\r
+ previousSibling.getLast().remove();\r
+ }\r
+ }\r
+\r
+ if ( removeLastBr )\r
+ {\r
+ var lastChild = block.getLast();\r
+ if ( lastChild && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.getName() == 'br' )\r
+ {\r
+ // Take care not to remove the block expanding <br> in non-IE browsers.\r
+ if ( CKEDITOR.env.ie\r
+ || lastChild.getPrevious( bookmarkGuard )\r
+ || lastChild.getNext( bookmarkGuard ) )\r
+ lastChild.remove();\r
+ }\r
+ }\r
+\r
+ // Get a reference for the next element. This is important because the\r
+ // above block can be removed or changed, so we can rely on it for the\r
+ // next interation.\r
+ if ( !this._.nextNode )\r
+ {\r
+ this._.nextNode = ( isLast || block.equals( lastNode ) ) ? null :\r
+ getNextSourceNode( block, 1, lastNode );\r
+ }\r
+\r
+ return block;\r
+ }\r
+ };\r
+\r
+ CKEDITOR.dom.range.prototype.createIterator = function()\r
+ {\r
+ return new iterator( this );\r
+ };\r
+})();\r
projects / ckeditor.git / blobdiff