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vanilla ckeditor-3.5.1
[ckeditor.git] / _source / core / dom / range.js
index b43a82d..fedbfb9 100644 (file)
@@ -1,5 +1,5 @@
 /*\r
-Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.\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
@@ -32,7 +32,7 @@ CKEDITOR.dom.range = function( document )
        // This is a shared function used to delete, extract and clone the range\r
        // contents.\r
        // V2\r
-       var execContentsAction = function( range, action, docFrag )\r
+       var execContentsAction = function( range, action, docFrag, mergeThen )\r
        {\r
                range.optimizeBookmark();\r
 \r
@@ -247,7 +247,17 @@ CKEDITOR.dom.range = function( document )
                                if ( removeStartNode && topEnd.$.parentNode == startNode.$.parentNode )\r
                                        endIndex--;\r
 \r
-                               range.setStart( topEnd.getParent(), endIndex );\r
+                               // Merge splitted parents.\r
+                               if ( mergeThen && topStart.type == CKEDITOR.NODE_ELEMENT )\r
+                               {\r
+                                       var span = CKEDITOR.dom.element.createFromHtml( '<span ' +\r
+                                               'data-cke-bookmark="1" style="display:none">&nbsp;</span>', range.document );\r
+                                       span.insertAfter( topStart );\r
+                                       topStart.mergeSiblings( false );\r
+                                       range.moveToBookmark( { startNode : span } );\r
+                               }\r
+                               else\r
+                                       range.setStart( topEnd.getParent(), endIndex );\r
                        }\r
 \r
                        // Collapse it to the start.\r
@@ -280,7 +290,7 @@ CKEDITOR.dom.range = function( document )
                                // If there's any visible text, then we're not at the start.\r
                                if ( CKEDITOR.tools.trim( node.getText() ).length )\r
                                        return false;\r
-                               }\r
+                       }\r
                        else if ( node.type == CKEDITOR.NODE_ELEMENT )\r
                        {\r
                                // If there are non-empty inline elements (e.g. <img />), then we're not\r
@@ -308,7 +318,7 @@ CKEDITOR.dom.range = function( document )
                return node.type != CKEDITOR.NODE_TEXT\r
                            && node.getName() in CKEDITOR.dtd.$removeEmpty\r
                            || !CKEDITOR.tools.trim( node.getText() )\r
-                           || node.getParent().hasAttribute( '_cke_bookmark' );\r
+                           || !!node.getParent().data( 'cke-bookmark' );\r
        }\r
 \r
        var whitespaceEval = new CKEDITOR.dom.walker.whitespaces(),\r
@@ -351,7 +361,10 @@ CKEDITOR.dom.range = function( document )
                        this.collapsed = true;\r
                },\r
 \r
-               // The selection may be lost when cloning (due to the splitText() call).\r
+               /**\r
+                *  The content nodes of the range are cloned and added to a document fragment, which is returned.\r
+                *  <strong> Note: </strong> Text selection may lost after invoking this method. (caused by text node splitting).\r
+                */\r
                cloneContents : function()\r
                {\r
                        var docFrag = new CKEDITOR.dom.documentFragment( this.document );\r
@@ -362,20 +375,29 @@ CKEDITOR.dom.range = function( document )
                        return docFrag;\r
                },\r
 \r
-               deleteContents : function()\r
+               /**\r
+                * Deletes the content nodes of the range permanently from the DOM tree.\r
+                * @param {Boolean} [mergeThen] Merge any splitted elements result in DOM true due to partial selection.\r
+                */\r
+               deleteContents : function( mergeThen )\r
                {\r
                        if ( this.collapsed )\r
                                return;\r
 \r
-                       execContentsAction( this, 0 );\r
+                       execContentsAction( this, 0, null, mergeThen );\r
                },\r
 \r
-               extractContents : function()\r
+               /**\r
+                *  The content nodes of the range are cloned and added to a document fragment,\r
+                * meanwhile they're removed permanently from the DOM tree.\r
+                * @param {Boolean} [mergeThen] Merge any splitted elements result in DOM true due to partial selection.\r
+                */\r
+               extractContents : function( mergeThen )\r
                {\r
                        var docFrag = new CKEDITOR.dom.documentFragment( this.document );\r
 \r
                        if ( !this.collapsed )\r
-                               execContentsAction( this, 1, docFrag );\r
+                               execContentsAction( this, 1, docFrag, mergeThen );\r
 \r
                        return docFrag;\r
                },\r
@@ -403,7 +425,7 @@ CKEDITOR.dom.range = function( document )
                        var collapsed = this.collapsed;\r
 \r
                        startNode = this.document.createElement( 'span' );\r
-                       startNode.setAttribute( '_cke_bookmark', 1 );\r
+                       startNode.data( 'cke-bookmark', 1 );\r
                        startNode.setStyle( 'display', 'none' );\r
 \r
                        // For IE, it must have something inside, otherwise it may be\r
@@ -713,10 +735,10 @@ CKEDITOR.dom.range = function( document )
                                endNode = this.endContainer;\r
 \r
                        if ( startNode.is && startNode.is( 'span' )\r
-                               && startNode.hasAttribute( '_cke_bookmark' ) )\r
+                               && startNode.data( 'cke-bookmark' ) )\r
                                this.setStartAt( startNode, CKEDITOR.POSITION_BEFORE_START );\r
                        if ( endNode && endNode.is && endNode.is( 'span' )\r
-                               && endNode.hasAttribute( '_cke_bookmark' ) )\r
+                               && endNode.data( 'cke-bookmark' ) )\r
                                this.setEndAt( endNode,  CKEDITOR.POSITION_AFTER_END );\r
                },\r
 \r
@@ -801,7 +823,12 @@ CKEDITOR.dom.range = function( document )
                        }\r
                },\r
 \r
-               enlarge : function( unit )\r
+               /**\r
+                * Expands the range so that partial units are completely contained.\r
+                * @param unit {Number} The unit type to expand with.\r
+                * @param {Boolean} [excludeBrs=false] Whether include line-breaks when expanding.\r
+                */\r
+               enlarge : function( unit, excludeBrs )\r
                {\r
                        switch ( unit )\r
                        {\r
@@ -922,7 +949,8 @@ CKEDITOR.dom.range = function( document )
                                                                // If this is a visible element.\r
                                                                // We need to check for the bookmark attribute because IE insists on\r
                                                                // rendering the display:none nodes we use for bookmarks. (#3363)\r
-                                                               if ( sibling.$.offsetWidth > 0 && !sibling.getAttribute( '_cke_bookmark' ) )\r
+                                                               // Line-breaks (br) are rendered with zero width, which we don't want to include. (#7041)\r
+                                                               if ( ( sibling.$.offsetWidth > 0 || excludeBrs && sibling.is( 'br' ) ) && !sibling.data( 'cke-bookmark' ) )\r
                                                                {\r
                                                                        // We'll accept it only if we need\r
                                                                        // whitespace, and this is an inline\r
@@ -1081,7 +1109,8 @@ CKEDITOR.dom.range = function( document )
                                                                // If this is a visible element.\r
                                                                // We need to check for the bookmark attribute because IE insists on\r
                                                                // rendering the display:none nodes we use for bookmarks. (#3363)\r
-                                                               if ( sibling.$.offsetWidth > 0 && !sibling.getAttribute( '_cke_bookmark' ) )\r
+                                                               // Line-breaks (br) are rendered with zero width, which we don't want to include. (#7041)\r
+                                                               if ( ( sibling.$.offsetWidth > 0 || excludeBrs && sibling.is( 'br' ) ) && !sibling.data( 'cke-bookmark' ) )\r
                                                                {\r
                                                                        // We'll accept it only if we need\r
                                                                        // whitespace, and this is an inline\r
@@ -1405,7 +1434,7 @@ CKEDITOR.dom.range = function( document )
                        // Fixing invalid range start inside dtd empty elements.\r
                        if( startNode.type == CKEDITOR.NODE_ELEMENT\r
                                && CKEDITOR.dtd.$empty[ startNode.getName() ] )\r
-                               startNode = startNode.getParent(), startOffset = startNode.getIndex();\r
+                               startOffset = startNode.getIndex(), startNode = startNode.getParent();\r
 \r
                        this.startContainer     = startNode;\r
                        this.startOffset        = startOffset;\r
@@ -1745,6 +1774,47 @@ CKEDITOR.dom.range = function( document )
                },\r
 \r
                /**\r
+                * Check if elements at which the range boundaries anchor are read-only,\r
+                * with respect to "contenteditable" attribute.\r
+                */\r
+               checkReadOnly : ( function()\r
+               {\r
+                       function checkNodesEditable( node, anotherEnd )\r
+                       {\r
+                               while( node )\r
+                               {\r
+                                       if ( node.type == CKEDITOR.NODE_ELEMENT )\r
+                                       {\r
+                                               if ( node.getAttribute( 'contentEditable' ) == 'false'\r
+                                                       && !node.data( 'cke-editable' ) )\r
+                                               {\r
+                                                       return 0;\r
+                                               }\r
+                                               // Range enclosed entirely in an editable element.\r
+                                               else if ( node.is( 'body' )\r
+                                                       || node.getAttribute( 'contentEditable' ) == 'true'\r
+                                                       && ( node.contains( anotherEnd ) || node.equals( anotherEnd ) ) )\r
+                                               {\r
+                                                       break;\r
+                                               }\r
+                                       }\r
+                                       node = node.getParent();\r
+                               }\r
+\r
+                               return 1;\r
+                       }\r
+\r
+                       return function()\r
+                       {\r
+                               var startNode = this.startContainer,\r
+                                       endNode = this.endContainer;\r
+\r
+                               // Check if elements path at both boundaries are editable.\r
+                               return !( checkNodesEditable( startNode, endNode ) && checkNodesEditable( endNode, startNode ) );\r
+                       };\r
+               })(),\r
+\r
+               /**\r
                 * Moves the range boundaries to the first/end editing point inside an\r
                 * element. For example, in an element tree like\r
                 * "&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt; Text&lt;/p&gt;", the start editing point is\r