JasonWoof Got questions, comments, patches, etc.? Contact Jason Woofenden
vanilla ckeditor-3.5.1
[ckeditor.git] / _source / plugins / selection / plugin.js
index f0d2c44..3a4eb80 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
@@ -79,20 +79,21 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                        {\r
                                case 'wysiwyg' :\r
                                        editor.document.$.execCommand( 'SelectAll', false, null );\r
+                                       // Force triggering selectionChange (#7008)\r
+                                       editor.forceNextSelectionCheck();\r
+                                       editor.selectionChange();\r
                                        break;\r
                                case 'source' :\r
                                        // Select the contents of the textarea\r
-                                       var textarea = editor.textarea.$ ;\r
+                                       var textarea = editor.textarea.$;\r
                                        if ( CKEDITOR.env.ie )\r
-                                       {\r
-                                               textarea.createTextRange().execCommand( 'SelectAll' ) ;\r
-                                       }\r
+                                               textarea.createTextRange().execCommand( 'SelectAll' );\r
                                        else\r
                                        {\r
-                                               textarea.selectionStart = 0 ;\r
-                                               textarea.selectionEnd = textarea.value.length ;\r
+                                               textarea.selectionStart = 0;\r
+                                               textarea.selectionEnd = textarea.value.length;\r
                                        }\r
-                                       textarea.focus() ;\r
+                                       textarea.focus();\r
                        }\r
                },\r
                canUndo : false\r
@@ -133,7 +134,10 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                                // point.\r
                                                                if ( savedRange )\r
                                                                {\r
-                                                                       if ( restoreEnabled )\r
+                                                                       // Range restored here might invalidate the DOM structure thus break up\r
+                                                                       // the locked selection, give it up. (#6083)\r
+                                                                       var lockedSelection = doc.getCustomData( 'cke_locked_selection' );\r
+                                                                       if ( restoreEnabled && !lockedSelection )\r
                                                                        {\r
                                                                                // Well not break because of this.\r
                                                                                try\r
@@ -151,7 +155,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                body.on( 'focus', function()\r
                                                        {\r
                                                                // Enable selections to be saved.\r
-                                                               saveEnabled = true;\r
+                                                               saveEnabled = 1;\r
 \r
                                                                saveSelection();\r
                                                        });\r
@@ -164,7 +168,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                                        return;\r
 \r
                                                                // Disable selections from being saved.\r
-                                                               saveEnabled = false;\r
+                                                               saveEnabled = 0;\r
                                                                restoreEnabled = 1;\r
                                                        });\r
 \r
@@ -174,13 +178,18 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                {\r
                                                        editor.on( 'blur', function( evt )\r
                                                        {\r
-                                                               editor.document && editor.document.$.selection.empty();\r
+                                                               // Try/Catch to avoid errors if the editor is hidden. (#6375)\r
+                                                               try\r
+                                                               {\r
+                                                                       editor.document && editor.document.$.selection.empty();\r
+                                                               }\r
+                                                               catch (e) {}\r
                                                        });\r
                                                }\r
 \r
                                                // Listening on document element ensures that\r
                                                // scrollbar is included. (#5280)\r
-                                               html.on( 'mousedown', function ()\r
+                                               html.on( 'mousedown', function()\r
                                                {\r
                                                        // Lock restore selection now, as we have\r
                                                        // a followed 'click' event which introduce\r
@@ -188,7 +197,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                        restoreEnabled = 0;\r
                                                });\r
 \r
-                                               html.on( 'mouseup', function ()\r
+                                               html.on( 'mouseup', function()\r
                                                {\r
                                                        restoreEnabled = 1;\r
                                                });\r
@@ -235,7 +244,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                                }\r
                                                                scroll = null;\r
 \r
-                                                               saveEnabled = true;\r
+                                                               saveEnabled = 1;\r
                                                                setTimeout( function()\r
                                                                        {\r
                                                                                saveSelection( true );\r
@@ -247,7 +256,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                body.on( 'keyup',\r
                                                        function()\r
                                                        {\r
-                                                               saveEnabled = true;\r
+                                                               saveEnabled = 1;\r
                                                                saveSelection();\r
                                                        });\r
 \r
@@ -258,7 +267,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 \r
                                                function disableSave()\r
                                                {\r
-                                                       saveEnabled = false;\r
+                                                       saveEnabled = 0;\r
                                                }\r
 \r
                                                function saveSelection( testIt )\r
@@ -400,7 +409,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                        return lockedSelection;\r
 \r
                this.document = document;\r
-               this.isLocked = false;\r
+               this.isLocked = 0;\r
                this._ =\r
                {\r
                        cache : {}\r
@@ -543,11 +552,13 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                 * var ranges = selection.getRanges();\r
                 * alert(ranges.length);\r
                 */\r
-               getRanges : (function ()\r
+               getRanges : (function()\r
                {\r
                        var func = CKEDITOR.env.ie ?\r
                                ( function()\r
                                {\r
+                                       function getNodeIndex( node ) { return new CKEDITOR.dom.node( node ).getIndex(); }\r
+\r
                                        // Finds the container and offset for a specific boundary\r
                                        // of an IE range.\r
                                        var getBoundaryInformation = function( range, start )\r
@@ -558,76 +569,103 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 \r
                                                // Gets the element that encloses the range entirely.\r
                                                var parent = range.parentElement();\r
-                                               var siblings = parent.childNodes;\r
-\r
-                                               var testRange;\r
 \r
-                                               for ( var i = 0 ; i < siblings.length ; i++ )\r
+                                               // Empty parent element, e.g. <i>^</i>\r
+                                               if ( !parent.hasChildNodes() )\r
+                                                       return  { container : parent, offset : 0 };\r
+\r
+                                               var siblings = parent.children,\r
+                                                       child,\r
+                                                       testRange = range.duplicate(),\r
+                                                       startIndex = 0,\r
+                                                       endIndex = siblings.length - 1,\r
+                                                       index = -1,\r
+                                                       position,\r
+                                                       distance;\r
+\r
+                                               // Binary search over all element childs to test the range to see whether\r
+                                               // range is right on the boundary of one element.\r
+                                               while ( startIndex <= endIndex )\r
                                                {\r
-                                                       var child = siblings[ i ];\r
-                                                       if ( child.nodeType == 1 )\r
-                                                       {\r
-                                                               testRange = range.duplicate();\r
+                                                       index = Math.floor( ( startIndex + endIndex ) / 2 );\r
+                                                       child = siblings[ index ];\r
+                                                       testRange.moveToElementText( child );\r
+                                                       position = testRange.compareEndPoints( 'StartToStart', range );\r
+\r
+                                                       if ( position > 0 )\r
+                                                               endIndex = index - 1;\r
+                                                       else if ( position < 0 )\r
+                                                               startIndex = index + 1;\r
+                                                       else\r
+                                                               return { container : parent, offset : getNodeIndex( child ) };\r
+                                               }\r
 \r
-                                                               testRange.moveToElementText( child );\r
+                                               // All childs are text nodes,\r
+                                               // or to the right hand of test range are all text nodes. (#6992)\r
+                                               if ( index == -1 || index == siblings.length - 1 && position < 0 )\r
+                                               {\r
+                                                       // Adapt test range to embrace the entire parent contents.\r
+                                                       testRange.moveToElementText( parent );\r
+                                                       testRange.setEndPoint( 'StartToStart', range );\r
 \r
-                                                               var comparisonStart = testRange.compareEndPoints( 'StartToStart', range ),\r
-                                                                       comparisonEnd = testRange.compareEndPoints( 'EndToStart', range );\r
+                                                       // IE report line break as CRLF with range.text but\r
+                                                       // only LF with textnode.nodeValue, normalize them to avoid\r
+                                                       // breaking character counting logic below. (#3949)\r
+                                                       distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;\r
 \r
-                                                               testRange.collapse();\r
+                                                       siblings = parent.childNodes;\r
 \r
-                                                               if ( comparisonStart > 0 )\r
-                                                                       break;\r
-                                                               // When selection stay at the side of certain self-closing elements, e.g. BR,\r
-                                                               // our comparison will never shows an equality. (#4824)\r
-                                                               else if ( !comparisonStart\r
-                                                                       || comparisonEnd == 1 && comparisonStart == -1 )\r
-                                                                       return { container : parent, offset : i };\r
-                                                               else if ( !comparisonEnd )\r
-                                                                       return { container : parent, offset : i + 1 };\r
+                                                       // Actual range anchor right beside test range at the boundary of text node.\r
+                                                       if ( !distance )\r
+                                                       {\r
+                                                               child = siblings[ siblings.length - 1 ];\r
 \r
-                                                               testRange = null;\r
+                                                               if ( child.nodeType == CKEDITOR.NODE_ELEMENT )\r
+                                                                       return { container : parent, offset : siblings.length };\r
+                                                               else\r
+                                                                       return { container : child, offset : child.nodeValue.length };\r
                                                        }\r
-                                               }\r
-\r
-                                               if ( !testRange )\r
-                                               {\r
-                                                       testRange = range.duplicate();\r
-                                                       testRange.moveToElementText( parent );\r
-                                                       testRange.collapse( false );\r
-                                               }\r
 \r
-                                               testRange.setEndPoint( 'StartToStart', range );\r
-                                               // IE report line break as CRLF with range.text but\r
-                                               // only LF with textnode.nodeValue, normalize them to avoid\r
-                                               // breaking character counting logic below. (#3949)\r
-                                               var distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;\r
-\r
-                                               try\r
-                                               {\r
+                                                       // Start the measuring until distance overflows, meanwhile count the text nodes.\r
+                                                       var i = siblings.length;\r
                                                        while ( distance > 0 )\r
                                                                distance -= siblings[ --i ].nodeValue.length;\r
-                                               }\r
-                                               // Measurement in IE could be somtimes wrong because of <select> element. (#4611)\r
-                                               catch( e )\r
-                                               {\r
-                                                       distance = 0;\r
-                                               }\r
-\r
 \r
-                                               if ( distance === 0 )\r
-                                               {\r
-                                                       return {\r
-                                                               container : parent,\r
-                                                               offset : i\r
-                                                       };\r
+                                                       return  { container : siblings[ i ], offset : -distance };\r
                                                }\r
+                                               // Test range was one offset beyond OR behind the anchored text node.\r
                                                else\r
                                                {\r
-                                                       return {\r
-                                                               container : siblings[ i ],\r
-                                                               offset : -distance\r
-                                                       };\r
+                                                       // Adapt one side of test range to the actual range\r
+                                                       // for measuring the offset between them.\r
+                                                       testRange.collapse( position > 0 ? true : false );\r
+                                                       testRange.setEndPoint( position > 0 ? 'StartToStart' : 'EndToStart', range );\r
+\r
+                                                       // IE report line break as CRLF with range.text but\r
+                                                       // only LF with textnode.nodeValue, normalize them to avoid\r
+                                                       // breaking character counting logic below. (#3949)\r
+                                                       distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;\r
+\r
+                                                       // Actual range anchor right beside test range at the inner boundary of text node.\r
+                                                       if ( !distance )\r
+                                                               return { container : parent, offset : getNodeIndex( child ) + ( position > 0 ? 0 : 1 ) };\r
+\r
+                                                       // Start the measuring until distance overflows, meanwhile count the text nodes.\r
+                                                       while ( distance > 0 )\r
+                                                       {\r
+                                                               child = child[ position > 0 ? 'previousSibling' : 'nextSibling' ];\r
+                                                               try\r
+                                                               {\r
+                                                                       distance -= child.nodeValue.length;\r
+                                                               }\r
+                                                               // Measurement in IE could be somtimes wrong because of <select> element. (#4611)\r
+                                                               catch( e )\r
+                                                               {\r
+                                                                       return { container : parent, offset : getNodeIndex( child ) };\r
+                                                               }\r
+                                                       }\r
+\r
+                                                       return { container : child, offset : position > 0 ? -distance : child.nodeValue.length + distance };\r
                                                }\r
                                        };\r
 \r
@@ -655,6 +693,13 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                        boundaryInfo = getBoundaryInformation( nativeRange );\r
                                                        range.setEnd( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );\r
 \r
+                                                       // Correct an invalid IE range case on empty list item. (#5850)\r
+                                                       if ( range.endContainer.getPosition( range.startContainer ) & CKEDITOR.POSITION_PRECEDING\r
+                                                                       && range.endOffset <= range.startContainer.getIndex() )\r
+                                                       {\r
+                                                               range.collapse();\r
+                                                       }\r
+\r
                                                        return [ range ];\r
                                                }\r
                                                else if ( type == CKEDITOR.SELECTION_ELEMENT )\r
@@ -740,7 +785,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 \r
                                                // Drop range spans inside one ready-only node.\r
                                                var parent = range.getCommonAncestor();\r
-                                               if ( parent.isReadOnly())\r
+                                               if ( parent.isReadOnly() )\r
                                                        ranges.splice( i, 1 );\r
 \r
                                                if ( range.collapsed )\r
@@ -782,7 +827,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                walker.evaluator = function( node )\r
                                                {\r
                                                        if ( node.type == CKEDITOR.NODE_ELEMENT\r
-                                                               && node.getAttribute( 'contenteditable' ) == 'false' )\r
+                                                               && node.isReadOnly() )\r
                                                        {\r
                                                                var newRange = range.clone();\r
                                                                range.setEndBefore( node );\r
@@ -850,7 +895,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                        // Decrease the range content to exclude particial\r
                                                        // selected node on the start which doesn't have\r
                                                        // visual impact. ( #3231 )\r
-                                                       while ( true )\r
+                                                       while ( 1 )\r
                                                        {\r
                                                                var startContainer = range.startContainer,\r
                                                                        startOffset = range.startOffset;\r
@@ -870,32 +915,25 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                        node = node.getChild( range.startOffset );\r
 \r
                                                        if ( !node || node.type != CKEDITOR.NODE_ELEMENT )\r
-                                                               return range.startContainer;\r
-\r
-                                                       var child = node.getFirst();\r
-                                                       while (  child && child.type == CKEDITOR.NODE_ELEMENT )\r
+                                                               node = range.startContainer;\r
+                                                       else\r
                                                        {\r
-                                                               node = child;\r
-                                                               child = child.getFirst();\r
+                                                               var child = node.getFirst();\r
+                                                               while (  child && child.type == CKEDITOR.NODE_ELEMENT )\r
+                                                               {\r
+                                                                       node = child;\r
+                                                                       child = child.getFirst();\r
+                                                               }\r
                                                        }\r
-\r
-                                                       return node;\r
                                                }\r
-                                       }\r
-\r
-                                       if ( CKEDITOR.env.ie )\r
-                                       {\r
-                                               range = sel.createRange();\r
-                                               range.collapse( true );\r
-\r
-                                               node = range.parentElement();\r
-                                       }\r
-                                       else\r
-                                       {\r
-                                               node = sel.anchorNode;\r
+                                               else\r
+                                               {\r
+                                                       node = range.startContainer;\r
+                                                       if ( node.type != CKEDITOR.NODE_ELEMENT )\r
+                                                               node = node.getParent();\r
+                                               }\r
 \r
-                                               if ( node && node.nodeType != 1 )\r
-                                                       node = node.parentNode;\r
+                                               node = node.$;\r
                                        }\r
                        }\r
 \r
@@ -959,7 +997,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                        // The native selection is not available when locked.\r
                        this._.cache.nativeSel = {};\r
 \r
-                       this.isLocked = true;\r
+                       this.isLocked = 1;\r
 \r
                        // Save this selection inside the DOM document.\r
                        this.document.setCustomData( 'cke_locked_selection', this );\r
@@ -979,7 +1017,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                        var selectedElement = lockedSelection.getSelectedElement(),\r
                                                ranges = !selectedElement && lockedSelection.getRanges();\r
 \r
-                                       this.isLocked = false;\r
+                                       this.isLocked = 0;\r
                                        this.reset();\r
 \r
                                        doc.getBody().focus();\r
@@ -993,7 +1031,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 \r
                        if  ( !lockedSelection || !restore )\r
                        {\r
-                               this.isLocked = false;\r
+                               this.isLocked = 0;\r
                                this.reset();\r
                        }\r
                },\r
@@ -1034,7 +1072,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                        range.addElement( element.$ );\r
                                        range.select();\r
                                }\r
-                               catch(e)\r
+                               catch( e )\r
                                {\r
                                        // If failed, select it as a text range.\r
                                        range = this.document.$.body.createTextRange();\r
@@ -1118,7 +1156,13 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                                if ( !between.collapsed )\r
                                                {\r
                                                        between.shrink( CKEDITOR.NODE_ELEMENT, true );\r
-                                                       if ( between.getCommonAncestor().isReadOnly())\r
+                                                       var ancestor = between.getCommonAncestor(),\r
+                                                               enclosed = between.getEnclosedNode();\r
+\r
+                                                       // The following cases has to be considered:\r
+                                                       // 1. <span contenteditable="false">[placeholder]</span>\r
+                                                       // 2. <input contenteditable="false"  type="radio"/> (#6621)\r
+                                                       if ( ancestor.isReadOnly() || enclosed && enclosed.isReadOnly() )\r
                                                        {\r
                                                                right.setStart( left.startContainer, left.startOffset );\r
                                                                ranges.splice( i--, 1 );\r
@@ -1361,7 +1405,11 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
                                }\r
 \r
                                var selection = this.document.getSelection().getNative();\r
-                               selection.removeAllRanges();\r
-                               selection.addRange( nativeRange );\r
+                               // getSelection() returns null in case when iframe is "display:none" in FF. (#6577)\r
+                               if ( selection )\r
+                               {\r
+                                       selection.removeAllRanges();\r
+                                       selection.addRange( nativeRange );\r
+                               }\r
                        };\r
 } )();\r