Ticket #1229: 1229_4.patch

_whatsnew.html

@@ -300 +300 @@
                         block.</li>
                 <li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/1627">#1627</a>] Samples
                         failed to load from local filesystem in IE7.</li>
+                <li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/1229">#1229</a>] Converting
+                        multiple contiguous paragraphs to Formatted will now be merged into a single 
+                        &lt;PRE&gt; block.</li>
         </ul>
         <p>
                 <a href="_whatsnew_history.html">See previous versions history</a>

editor/_source/classes/fckstyle.js

@@ -781 +781 @@
                         {
                                 if ( !isTag )
                                 {
-                                        value = value.replace( /\n/g, '<BR>' ) ;
+                                        value = value.replace( /\n/g, '<br>' ) ;
                                         value = value.replace( /[ \t]{2,}/g,
                                                         function ( match )
                                                         {
@@ -802 +802 @@
                 // Handle converting from a regular block to a <pre> block.
                 var innerHTML = block.innerHTML.Trim() ;
 
-                // 1. Delete ANSI whitespaces immediately before and after <BR> because they are not visible.
-                // 2. Mark down any <BR /> nodes here so they can be turned into \n in the next step and avoid being compressed.
-                innerHTML = innerHTML.replace( /[ \t\r\n]*(<br[^>]*>)[ \t\r\n]*/gi, '<BR />' ) ;
+                // 1. Delete ANSI whitespaces immediately before and after <BR> because
+                //    they are not visible.
+                // 2. Mark down any <BR /> nodes here so they can be turned into \n in
+                //    the next step and avoid being compressed.
+                innerHTML = innerHTML.replace( /[ \t\r\n]*(<br[^>]*>)[ \t\r\n]*/gi, '<br />' ) ;
 
-                // 3. Compress other ANSI whitespaces since they're only visible as one single space previously.
+                // 3. Compress other ANSI whitespaces since they're only visible as one
+                //    single space previously.
                 // 4. Convert &nbsp; to spaces since &nbsp; is no longer needed in <PRE>.
-                // 5. Convert any <BR /> to \n. This must not be done earlier because the \n would then get compressed.
+                // 5. Convert any <BR /> to \n. This must not be done earlier because
+                //    the \n would then get compressed.
                 var htmlIterator = new FCKHtmlIterator( innerHTML ) ;
                 var results = [] ;
                 htmlIterator.Each( function( isTag, value )
                         {
                                 if ( !isTag )
                                         value = value.replace( /([ \t\n\r]+|&nbsp;)/g, ' ' ) ;
-                                else if ( isTag && value == '<BR />' )
+                                else if ( isTag && value == '<br />' )
                                         value = '\n' ;
                                 results.push( value ) ;
                         } ) ;
 
-                // Assigning innerHTML to <PRE> in IE causes all linebreaks to be reduced to spaces.
-                // Assigning outerHTML to <PRE> in IE doesn't work if the <PRE> isn't contained in another node
-                // since the node reference is changed after outerHTML assignment.
+                // Assigning innerHTML to <PRE> in IE causes all linebreaks to be
+                // reduced to spaces.
+                // Assigning outerHTML to <PRE> in IE doesn't work if the <PRE> isn't
+                // contained in another node since the node reference is changed after
+                // outerHTML assignment.
                 // So, we need some hacks to workaround IE bugs here.
                 if ( FCKBrowserInfo.IsIE )
                 {
                         var temp = doc.createElement( 'div' ) ;
                         temp.appendChild( newBlock ) ;
-                        newBlock.outerHTML = '<PRE>\n' + results.join( '' ) + '</PRE>' ;
+                        newBlock.outerHTML = '<pre>\n' + results.join( '' ) + '</pre>' ;
                         newBlock = temp.removeChild( temp.firstChild ) ;
                 }
                 else
                         newBlock.innerHTML = results.join( '' ) ;
+
                 return newBlock ;
         },
 
         /**
+         * Merge a <pre> block with a previous <pre> block, if available.
+         */
+        _CheckAndMergePre : function( previousBlock, preBlock )
+        {
+                // Check if the previous block and the current block are next
+                // to each other.
+                if ( previousBlock != FCKDomTools.GetPreviousSourceElement( preBlock, true ) )
+                        return ;
+
+                // Merge the previous <pre> block contents into the current <pre>
+                // block.
+                //
+                // Another thing to be careful here is that currentBlock might contain
+                // a '\n' at the beginning, and previousBlock might contain a '\n'
+                // towards the end. These new lines are not normally displayed but they
+                // become visible after merging.
+                var innerHTML = previousBlock.innerHTML.replace( /\n$/, '' ) + '\n\n' +
+                                preBlock.innerHTML.replace( /^\n/, '' ) ;
+
+                // Buggy IE normalizes innerHTML from <pre>, breaking whitespaces.
+                if ( FCKBrowserInfo.IsIE )
+                        preBlock.outerHTML = '<pre>' + innerHTML + '</pre>' ;
+                else
+                        preBlock.innerHTML = innerHTML ;
+
+                // Remove the previous <pre> block.
+                //
+                // The preBlock must not be moved or deleted from the DOM tree. This
+                // guarantees the FCKDomRangeIterator in _ApplyBlockStyle would not
+                // get lost at the next iteration.
+                FCKDomTools.RemoveNode( previousBlock ) ;
+        },
+
+        _CheckAndSplitPre : function( newBlock )
+        {
+                var lastNewBlock ;
+
+                var cursor = newBlock.firstChild ;
+                
+                // We are not splitting <br><br> at the beginning of the block, so
+                // we'll start from the second child.
+                cursor = cursor && cursor.nextSibling ;
+
+                while ( cursor )
+                {
+                        var next = cursor.nextSibling ;
+
+                        // If we have two <BR>s, and they're not at the beginning or the end,
+                        // then we'll split up the contents following them into another block.
+                        // Stop processing if we are at the last child couple.
+                        if ( next && next.nextSibling && cursor.nodeName.IEquals( 'br' ) && next.nodeName.IEquals( 'br' ) )
+                        {
+                                // Remove the first <br>.
+                                FCKDomTools.RemoveNode( cursor ) ;
+
+                                // Move to the node after the second <br>.
+                                cursor = next.nextSibling ;
+
+                                // Remove the second <br>.
+                                FCKDomTools.RemoveNode( next ) ;
+
+                                // Create the block that will hold the child nodes from now on.
+                                lastNewBlock = FCKDomTools.InsertAfterNode( lastNewBlock || newBlock, FCKDomTools.CloneElement( newBlock ) ) ;
+
+                                continue ;
+                        }
+
+                        // If we split it, then start moving the nodes to the new block.
+                        if ( lastNewBlock )
+                        {
+                                cursor = cursor.previousSibling ;
+                                FCKDomTools.MoveNode(cursor.nextSibling, lastNewBlock ) ;
+                        }
+
+                        cursor = cursor.nextSibling ;
+                }
+        },
+
+        /**
          * Apply an inline style to a FCKDomRange.
          *
          * TODO
@@ -856 +942 @@
 
                 var block ;
                 var doc = range.Window.document ;
+                var previousPreBlock ;
 
-                var preBlocks = [] ;
-                var convertedPreBlocks = [] ;
-
                 while( ( block = iterator.GetNextParagraph() ) )                // Only one =
                 {
                         // Create the new node right before the current one.
                         var newBlock = this.BuildElement( doc ) ;
 
+                        // Check if we are changing from/to <pre>.
+                        var newBlockIsPre       = newBlock.nodeName.IEquals( 'pre' ) ;
+                        var blockIsPre          = block.nodeName.IEquals( 'pre' ) ;
+                        
+                        var toPre       = newBlockIsPre && !blockIsPre ;
+                        var fromPre     = !newBlockIsPre && blockIsPre ;
+                        
                         // Move everything from the current node to the new one.
-                        var newBlockIsPre = newBlock.nodeName.IEquals( 'pre' ) ;
-                        var blockIsPre = block.nodeName.IEquals( 'pre' ) ;
-                        if ( newBlockIsPre && !blockIsPre )
-                        {
+                        if ( toPre )
                                 newBlock = this._ToPre( doc, block, newBlock ) ;
-                                preBlocks.push( newBlock ) ;
-                        }
-                        else if ( !newBlockIsPre && blockIsPre )
-                        {
+                        else if ( fromPre )
                                 newBlock = this._FromPre( doc, block, newBlock ) ;
-                                convertedPreBlocks.push( newBlock ) ;
-                        }
                         else    // Convering from a regular block to another regular block.
                                 FCKDomTools.MoveChildren( block, newBlock ) ;
 
                         // Replace the current block.
                         block.parentNode.insertBefore( newBlock, block ) ;
                         FCKDomTools.RemoveNode( block ) ;
-                }
 
-                // Merge adjacent <PRE> blocks for #1229.
-                for ( var i = 0 ; i < preBlocks.length - 1 ; i++ )
-                {
-                        // Check if the next block in HTML equals the next <PRE> block generated.
-                        if ( FCKDomTools.GetNextSourceElement( preBlocks[i], true, [], [], true ) != preBlocks[i+1] )
-                                continue ;
-
-                        // Merge the upper <PRE> block's content into the lower <PRE> block.
-                        // Remove the upper <PRE> block.
-                        preBlocks[i+1].innerHTML = preBlocks[i].innerHTML + '\n\n' + preBlocks[i+1].innerHTML ;
-                        FCKDomTools.RemoveNode( preBlocks[i] ) ;
-                }
-
-                // Split converted <PRE> blocks for #1229.
-                for ( var i = 0 ; i < convertedPreBlocks.length ; i++ )
-                {
-                        var currentBlock = convertedPreBlocks[i] ;
-                        var lastNewBlock = null ;
-                        for ( var j = 0 ; j < currentBlock.childNodes.length ; j++ )
+                        // Complete other tasks after inserting the node in the DOM.
+                        if ( newBlockIsPre )
                         {
-                                var cursor = currentBlock.childNodes[j] ;
-
-                                // If we have two <BR>s, and they're not at the beginning or the end,
-                                // then we'll split up the contents following them into another block.
-                                if ( cursor.nodeName.IEquals( 'br' ) && j != 0 && j != currentBlock.childNodes.length - 2
-                                                && cursor.nextSibling && cursor.nextSibling.nodeName.IEquals( 'br' ) )
-                                {
-                                        FCKDomTools.RemoveNode( cursor.nextSibling ) ;
-                                        FCKDomTools.RemoveNode( cursor ) ;
-                                        j-- ;   // restart at current index at next iteration
-                                        lastNewBlock = FCKDomTools.InsertAfterNode( lastNewBlock || currentBlock, doc.createElement( currentBlock.nodeName ) ) ;
-                                        continue ;
-                                }
-
-                                if ( lastNewBlock )
-                                {
-                                        FCKDomTools.MoveNode( cursor, lastNewBlock ) ;
-                                        j-- ;   // restart at current index at next iteration
-                                }
+                                if ( previousPreBlock )
+                                        this._CheckAndMergePre( previousPreBlock, newBlock ) ;  // Merge successive <pre> blocks.
+                                previousPreBlock = newBlock ;
                         }
+                        else if ( fromPre )
+                                this._CheckAndSplitPre( newBlock ) ;    // Split <br><br> in successive <pre>s.
                 }
 
                 // Re-select the original range.