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/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
(function()
{
// #### checkSelectionChange : START
// The selection change check basically saves the element parent tree of
// the current node and check it on successive requests. If there is any
// change on the tree, then the selectionChange event gets fired.
function checkSelectionChange()
{
try
{
// In IE, the "selectionchange" event may still get thrown when
// releasing the WYSIWYG mode, so we need to check it first.
var sel = this.getSelection();
if ( !sel || !sel.document.getWindow().$ )
return;
var firstElement = sel.getStartElement();
var currentPath = new CKEDITOR.dom.elementPath( firstElement );
if ( !currentPath.compare( this._.selectionPreviousPath ) )
{
this._.selectionPreviousPath = currentPath;
this.fire( 'selectionChange', { selection : sel, path : currentPath, element : firstElement } );
}
}
catch (e)
{}
}
var checkSelectionChangeTimer,
checkSelectionChangeTimeoutPending;
function checkSelectionChangeTimeout()
{
// Firing the "OnSelectionChange" event on every key press started to
// be too slow. This function guarantees that there will be at least
// 200ms delay between selection checks.
checkSelectionChangeTimeoutPending = true;
if ( checkSelectionChangeTimer )
return;
checkSelectionChangeTimeoutExec.call( this );
checkSelectionChangeTimer = CKEDITOR.tools.setTimeout( checkSelectionChangeTimeoutExec, 200, this );
}
function checkSelectionChangeTimeoutExec()
{
checkSelectionChangeTimer = null;
if ( checkSelectionChangeTimeoutPending )
{
// Call this with a timeout so the browser properly moves the
// selection after the mouseup. It happened that the selection was
// being moved after the mouseup when clicking inside selected text
// with Firefox.
CKEDITOR.tools.setTimeout( checkSelectionChange, 0, this );
checkSelectionChangeTimeoutPending = false;
}
}
// #### checkSelectionChange : END
function rangeRequiresFix( range )
{
function isInlineCt( node )
{
return node && node.type == CKEDITOR.NODE_ELEMENT
&& node.getName() in CKEDITOR.dtd.$removeEmpty;
}
function singletonBlock( node )
{
var body = range.document.getBody();
return !node.is( 'body' ) && body.getChildCount() == 1;
}
var start = range.startContainer,
offset = range.startOffset;
if ( start.type == CKEDITOR.NODE_TEXT )
return false;
// 1. Empty inline element. <span>^</span>
// 2. Adjoin to inline element. <p><strong>text</strong>^</p>
// 3. The only empty block in document. <body><p>^</p></body> (#7222)
return !CKEDITOR.tools.trim( start.getHtml() ) ? isInlineCt( start ) || singletonBlock( start )
: isInlineCt( start.getChild( offset - 1 ) ) || isInlineCt( start.getChild( offset ) );
}
var selectAllCmd =
{
modes : { wysiwyg : 1, source : 1 },
readOnly : CKEDITOR.env.ie || CKEDITOR.env.webkit,
exec : function( editor )
{
switch ( editor.mode )
{
case 'wysiwyg' :
editor.document.$.execCommand( 'SelectAll', false, null );
// Force triggering selectionChange (#7008)
editor.forceNextSelectionCheck();
editor.selectionChange();
break;
case 'source' :
// Select the contents of the textarea
var textarea = editor.textarea.$;
if ( CKEDITOR.env.ie )
textarea.createTextRange().execCommand( 'SelectAll' );
else
{
textarea.selectionStart = 0;
textarea.selectionEnd = textarea.value.length;
}
textarea.focus();
}
},
canUndo : false
};
function createFillingChar( doc )
{
removeFillingChar( doc );
var fillingChar = doc.createText( '\u200B' );
doc.setCustomData( 'cke-fillingChar', fillingChar );
return fillingChar;
}
function getFillingChar( doc )
{
return doc && doc.getCustomData( 'cke-fillingChar' );
}
// Checks if a filling char has been used, eventualy removing it (#1272).
function checkFillingChar( doc )
{
var fillingChar = doc && getFillingChar( doc );
if ( fillingChar )
{
// Use this flag to avoid removing the filling char right after
// creating it.
if ( fillingChar.getCustomData( 'ready' ) )
removeFillingChar( doc );
else
fillingChar.setCustomData( 'ready', 1 );
}
}
function removeFillingChar( doc )
{
var fillingChar = doc && doc.removeCustomData( 'cke-fillingChar' );
if ( fillingChar )
{
var bm,
sel = doc.getSelection().getNative(),
// Be error proof.
range = sel && sel.type != 'None' && sel.getRangeAt( 0 );
// Text selection position might get mangled by
// subsequent dom modification, save it now for restoring. (#8617)
if ( fillingChar.getLength() > 1
&& range && range.intersectsNode( fillingChar.$ ) )
{
bm = [ sel.anchorOffset, sel.focusOffset ];
// Anticipate the offset change brought by the removed char.
var startAffected = sel.anchorNode == fillingChar.$ && sel.anchorOffset > 0,
endAffected = sel.focusNode == fillingChar.$ && sel.focusOffset > 0;
startAffected && bm[ 0 ]--;
endAffected && bm[ 1 ]--;
// Revert the bookmark order on reverse selection.
isReversedSelection( sel ) && bm.unshift( bm.pop() );
}
// We can't simply remove the filling node because the user
// will actually enlarge it when typing, so we just remove the
// invisible char from it.
fillingChar.setText( fillingChar.getText().replace( /\u200B/g, '' ) );
// Restore the bookmark.
if ( bm )
{
var rng = sel.getRangeAt( 0 );
rng.setStart( rng.startContainer, bm[ 0 ] );
rng.setEnd( rng.startContainer, bm[ 1 ] );
sel.removeAllRanges();
sel.addRange( rng );
}
}
}
function isReversedSelection( sel )
{
if ( !sel.isCollapsed )
{
var range = sel.getRangeAt( 0 );
// Potentially alter an reversed selection range.
range.setStart( sel.anchorNode, sel.anchorOffset );
range.setEnd( sel.focusNode, sel.focusOffset );
return range.collapsed;
}
}
CKEDITOR.plugins.add( 'selection',
{
init : function( editor )
{
// On WebKit only, we need a special "filling" char on some situations
// (#1272). Here we set the events that should invalidate that char.
if ( CKEDITOR.env.webkit )
{
editor.on( 'selectionChange', function() { checkFillingChar( editor.document ); } );
editor.on( 'beforeSetMode', function() { removeFillingChar( editor.document ); } );
var fillingCharBefore,
resetSelection;
function beforeData()
{
var doc = editor.document,
fillingChar = getFillingChar( doc );
if ( fillingChar )
{
// If cursor is right blinking by side of the filler node, save it for restoring,
// as the following text substitution will blind it. (#7437)
var sel = doc.$.defaultView.getSelection();
if ( sel.type == 'Caret' && sel.anchorNode == fillingChar.$ )
resetSelection = 1;
fillingCharBefore = fillingChar.getText();
fillingChar.setText( fillingCharBefore.replace( /\u200B/g, '' ) );
}
}
function afterData()
{
var doc = editor.document,
fillingChar = getFillingChar( doc );
if ( fillingChar )
{
fillingChar.setText( fillingCharBefore );
if ( resetSelection )
{
doc.$.defaultView.getSelection().setPosition( fillingChar.$,fillingChar.getLength() );
resetSelection = 0;
}
}
}
editor.on( 'beforeUndoImage', beforeData );
editor.on( 'afterUndoImage', afterData );
editor.on( 'beforeGetData', beforeData, null, null, 0 );
editor.on( 'getData', afterData );
}
editor.on( 'contentDom', function()
{
var doc = editor.document,
body = doc.getBody(),
html = doc.getDocumentElement();
if ( CKEDITOR.env.ie )
{
// Other browsers don't loose the selection if the
// editor document loose the focus. In IE, we don't
// have support for it, so we reproduce it here, other
// than firing the selection change event.
var savedRange,
saveEnabled,
restoreEnabled = 1;
// "onfocusin" is fired before "onfocus". It makes it
// possible to restore the selection before click
// events get executed.
body.on( 'focusin', function( evt )
{
// If there are elements with layout they fire this event but
// it must be ignored to allow edit its contents #4682
if ( evt.data.$.srcElement.nodeName != 'BODY' )
return;
// Give the priority to locked selection since it probably
// reflects the actual situation, besides locked selection
// could be interfered because of text nodes normalizing.
// (#6083, #6987)
var lockedSelection = doc.getCustomData( 'cke_locked_selection' );
if ( lockedSelection )
{
lockedSelection.unlock( 1 );
lockedSelection.lock();
}
// Then check ff we have saved a range, restore it at this
// point.
else if ( savedRange && restoreEnabled )
{
// Well not break because of this.
try { savedRange.select(); } catch (e) {}
savedRange = null;
}
});
body.on( 'focus', function()
{
// Enable selections to be saved.
saveEnabled = 1;
saveSelection();
});
body.on( 'beforedeactivate', function( evt )
{
// Ignore this event if it's caused by focus switch between
// internal editable control type elements, e.g. layouted paragraph. (#4682)
if ( evt.data.$.toElement )
return;
// Disable selections from being saved.
saveEnabled = 0;
restoreEnabled = 1;
});
// [IE] Iframe will still keep the selection when blurred, if
// focus is moved onto a non-editing host, e.g. link or button, but
// it becomes a problem for the object type selection, since the resizer
// handler attached on it will mark other part of the UI, especially
// for the dialog. (#8157)
// [IE<8] Even worse For old IEs, the cursor will not vanish even if
// the selection has been moved to another text input in some cases. (#4716)
//
// Now the range restore is disabled, so we simply force IE to clean
// up the selection before blur.
CKEDITOR.env.ie && editor.on( 'blur', function()
{
// Error proof when the editor is not visible. (#6375)
try{ doc.$.selection.empty(); } catch ( er){}
});
// Listening on document element ensures that
// scrollbar is included. (#5280)
html.on( 'mousedown', function()
{
// Lock restore selection now, as we have
// a followed 'click' event which introduce
// new selection. (#5735)
restoreEnabled = 0;
});
html.on( 'mouseup', function()
{
restoreEnabled = 1;
});
var scroll;
// IE fires the "selectionchange" event when clicking
// inside a selection. We don't want to capture that.
body.on( 'mousedown', function( evt )
{
// IE scrolls document to top on right mousedown
// when editor has no focus, remember this scroll
// position and revert it before context menu opens. (#5778)
if ( evt.data.$.button == 2 )
{
var sel = editor.document.$.selection;
if ( sel.type == 'None' )
scroll = editor.window.getScrollPosition();
}
disableSave();
});
body.on( 'mouseup',
function( evt )
{
// Restore recorded scroll position when needed on right mouseup.
if ( evt.data.$.button == 2 && scroll )
{
editor.document.$.documentElement.scrollLeft = scroll.x;
editor.document.$.documentElement.scrollTop = scroll.y;
}
scroll = null;
saveEnabled = 1;
setTimeout( function()
{
saveSelection( true );
},
0 );
});
body.on( 'keydown', disableSave );
body.on( 'keyup',
function()
{
saveEnabled = 1;
saveSelection();
});
// When content doc is in standards mode, IE doesn't focus the editor when
// clicking at the region below body (on html element) content, we emulate
// the normal behavior on old IEs. (#1659, #7932)
if ( ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat )
&& doc.$.compatMode != 'BackCompat' )
{
html.on( 'mousedown', function( evt )
{
evt = evt.data.$;
// Expand the text range along with mouse move.
function onHover( evt )
{
evt = evt.data.$;
if ( textRng )
{
// Read the current cursor.
var rngEnd = body.$.createTextRange();
rngEnd.moveToPoint( evt.x, evt.y );
// Handle drag directions.
textRng.setEndPoint(
textRng.compareEndPoints( 'StartToStart', rngEnd ) < 0 ?
'EndToEnd' :
'StartToStart',
rngEnd );
// Update selection with new range.
textRng.select();
}
}
// We're sure that the click happens at the region
// below body, but not on scrollbar.
if ( evt.y < html.$.clientHeight
&& evt.y > body.$.offsetTop + body.$.clientHeight
&& evt.x < html.$.clientWidth )
{
// Start to build the text range.
var textRng = body.$.createTextRange();
textRng.moveToPoint( evt.x, evt.y );
textRng.select();
html.on( 'mousemove', onHover );
html.on( 'mouseup', function( evt )
{
html.removeListener( 'mousemove', onHover );
evt.removeListener();
textRng.select();
textRng = null;
} );
}
});
}
// It's much simpler for IE8, we just need to reselect the reported range.
if ( CKEDITOR.env.ie8 )
{
html.on( 'mouseup', function( evt )
{
// The event is not fired when clicking on the scrollbars,
// so we can safely check the following to understand
// whether the empty space following <body> has been clicked.
if ( evt.data.getTarget().getName() == 'html' )
{
var sel = CKEDITOR.document.$.selection,
range = sel.createRange();
// The selection range is reported on host, but actually it should applies to the content doc.
if ( sel.type != 'None' && range.parentElement().ownerDocument == doc.$ )
range.select();
}
} );
}
// IE is the only to provide the "selectionchange"
// event.
doc.on( 'selectionchange', saveSelection );
function disableSave()
{
saveEnabled = 0;
}
function saveSelection( testIt )
{
if ( saveEnabled )
{
var doc = editor.document,
sel = editor.getSelection(),
nativeSel = sel && sel.getNative();
// There is a very specific case, when clicking
// inside a text selection. In that case, the
// selection collapses at the clicking point,
// but the selection object remains in an
// unknown state, making createRange return a
// range at the very start of the document. In
// such situation we have to test the range, to
// be sure it's valid.
if ( testIt && nativeSel && nativeSel.type == 'None' )
{
// The "InsertImage" command can be used to
// test whether the selection is good or not.
// If not, it's enough to give some time to
// IE to put things in order for us.
if ( !doc.$.queryCommandEnabled( 'InsertImage' ) )
{
CKEDITOR.tools.setTimeout( saveSelection, 50, this, true );
return;
}
}
// Avoid saving selection from within text input. (#5747)
var parentTag;
if ( nativeSel && nativeSel.type && nativeSel.type != 'Control'
&& ( parentTag = nativeSel.createRange() )
&& ( parentTag = parentTag.parentElement() )
&& ( parentTag = parentTag.nodeName )
&& parentTag.toLowerCase() in { input: 1, textarea : 1 } )
{
return;
}
savedRange = nativeSel && sel.getRanges()[ 0 ];
checkSelectionChangeTimeout.call( editor );
}
}
}
else
{
// In other browsers, we make the selection change
// check based on other events, like clicks or keys
// press.
doc.on( 'mouseup', checkSelectionChangeTimeout, editor );
doc.on( 'keyup', checkSelectionChangeTimeout, editor );
doc.on( 'selectionchange', checkSelectionChangeTimeout, editor );
}
if ( CKEDITOR.env.webkit )
{
doc.on( 'keydown', function( evt )
{
var key = evt.data.getKey();
// Remove the filling char before some keys get
// executed, so they'll not get blocked by it.
switch ( key )
{
case 13 : // ENTER
case 33 : // PAGEUP
case 34 : // PAGEDOWN
case 35 : // HOME
case 36 : // END
case 37 : // LEFT-ARROW
case 39 : // RIGHT-ARROW
case 8 : // BACKSPACE
case 45 : // INS
case 46 : // DEl
removeFillingChar( editor.document );
}
}, null, null, 10 );
}
});
// Clear the cached range path before unload. (#7174)
editor.on( 'contentDomUnload', editor.forceNextSelectionCheck, editor );
editor.addCommand( 'selectAll', selectAllCmd );
editor.ui.addButton( 'SelectAll',
{
label : editor.lang.selectAll,
command : 'selectAll'
});
editor.selectionChange = checkSelectionChangeTimeout;
// IE9 might cease to work if there's an object selection inside the iframe (#7639).
CKEDITOR.env.ie9Compat && editor.on( 'destroy', function()
{
var sel = editor.getSelection();
sel && sel.getNative().clear();
}, null, null, 9 );
}
});
/**
* Gets the current selection from the editing area when in WYSIWYG mode.
* @returns {CKEDITOR.dom.selection} A selection object or null if not in
* WYSIWYG mode or no selection is available.
* @example
* var selection = CKEDITOR.instances.editor1.<strong>getSelection()</strong>;
* alert( selection.getType() );
*/
CKEDITOR.editor.prototype.getSelection = function()
{
return this.document && this.document.getSelection();
};
CKEDITOR.editor.prototype.forceNextSelectionCheck = function()
{
delete this._.selectionPreviousPath;
};
/**
* Gets the current selection from the document.
* @returns {CKEDITOR.dom.selection} A selection object.
* @example
* var selection = CKEDITOR.instances.editor1.document.<strong>getSelection()</strong>;
* alert( selection.getType() );
*/
CKEDITOR.dom.document.prototype.getSelection = function()
{
var sel = new CKEDITOR.dom.selection( this );
return ( !sel || sel.isInvalid ) ? null : sel;
};
/**
* No selection.
* @constant
* @example
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_NONE )
* alert( 'Nothing is selected' );
*/
CKEDITOR.SELECTION_NONE = 1;
/**
* A text or a collapsed selection.
* @constant
* @example
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT )
* alert( 'A text is selected' );
*/
CKEDITOR.SELECTION_TEXT = 2;
/**
* Element selection.
* @constant
* @example
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_ELEMENT )
* alert( 'An element is selected' );
*/
CKEDITOR.SELECTION_ELEMENT = 3;
/**
* Manipulates the selection in a DOM document.
* @constructor
* @param {CKEDITOR.dom.document} document The DOM document that contains the selection.
* @example
* var sel = new <strong>CKEDITOR.dom.selection( CKEDITOR.document )</strong>;
*/
CKEDITOR.dom.selection = function( document )
{
var lockedSelection = document.getCustomData( 'cke_locked_selection' );
if ( lockedSelection )
return lockedSelection;
this.document = document;
this.isLocked = 0;
this._ =
{
cache : {}
};
/**
* IE BUG: The selection's document may be a different document than the
* editor document. Return null if that is the case.
*/
if ( CKEDITOR.env.ie )
{
// Avoid breaking because of it. (#8836)
try
{
var range = this.getNative().createRange();
if ( !range ||
( range.item && range.item( 0 ).ownerDocument != this.document.$ ) ||
( range.parentElement && range.parentElement().ownerDocument != this.document.$ ) )
{
throw 0;
}
}
catch ( e )
{
this.isInvalid = true;
}
}
return this;
};
var styleObjectElements =
{
img:1,hr:1,li:1,table:1,tr:1,td:1,th:1,embed:1,object:1,ol:1,ul:1,
a:1,input:1,form:1,select:1,textarea:1,button:1,fieldset:1,thead:1,tfoot:1
};
CKEDITOR.dom.selection.prototype =
{
/**
* Gets the native selection object from the browser.
* @function
* @returns {Object} The native browser selection object.
* @example
* var selection = editor.getSelection().<strong>getNative()</strong>;
*/
getNative :
CKEDITOR.env.ie ?
function()
{
return this._.cache.nativeSel || ( this._.cache.nativeSel = this.document.$.selection );
}
:
function()
{
return this._.cache.nativeSel || ( this._.cache.nativeSel = this.document.getWindow().$.getSelection() );
},
/**
* Gets the type of the current selection. The following values are
* available:
* <ul>
* <li><code>{@link CKEDITOR.SELECTION_NONE}</code> (1): No selection.</li>
* <li><code>{@link CKEDITOR.SELECTION_TEXT}</code> (2): A text or a collapsed
* selection is selected.</li>
* <li><code>{@link CKEDITOR.SELECTION_ELEMENT}</code> (3): An element is
* selected.</li>
* </ul>
* @function
* @returns {Number} One of the following constant values:
* <code>{@link CKEDITOR.SELECTION_NONE}</code>, <code>{@link CKEDITOR.SELECTION_TEXT}</code>, or
* <code>{@link CKEDITOR.SELECTION_ELEMENT}</code>.
* @example
* if ( editor.getSelection().<strong>getType()</strong> == CKEDITOR.SELECTION_TEXT )
* alert( 'A text is selected' );
*/
getType :
CKEDITOR.env.ie ?
function()
{
var cache = this._.cache;
if ( cache.type )
return cache.type;
var type = CKEDITOR.SELECTION_NONE;
try
{
var sel = this.getNative(),
ieType = sel.type;
if ( ieType == 'Text' )
type = CKEDITOR.SELECTION_TEXT;
if ( ieType == 'Control' )
type = CKEDITOR.SELECTION_ELEMENT;
// It is possible that we can still get a text range
// object even when type == 'None' is returned by IE.
// So we'd better check the object returned by
// createRange() rather than by looking at the type.
if ( sel.createRange().parentElement )
type = CKEDITOR.SELECTION_TEXT;
}
catch(e) {}
return ( cache.type = type );
}
:
function()
{
var cache = this._.cache;
if ( cache.type )
return cache.type;
var type = CKEDITOR.SELECTION_TEXT;
var sel = this.getNative();
if ( !sel )
type = CKEDITOR.SELECTION_NONE;
else if ( sel.rangeCount == 1 )
{
// Check if the actual selection is a control (IMG,
// TABLE, HR, etc...).
var range = sel.getRangeAt(0),
startContainer = range.startContainer;
if ( startContainer == range.endContainer
&& startContainer.nodeType == 1
&& ( range.endOffset - range.startOffset ) == 1
&& styleObjectElements[ startContainer.childNodes[ range.startOffset ].nodeName.toLowerCase() ] )
{
type = CKEDITOR.SELECTION_ELEMENT;
}
}
return ( cache.type = type );
},
/**
* Retrieves the <code>{@link CKEDITOR.dom.range}</code> instances that represent the current selection.
* Note: Some browsers return multiple ranges even for a continuous selection. Firefox, for example, returns
* one range for each table cell when one or more table rows are selected.
* @function
* @param {Boolean} [onlyEditables] If set to <code>true</code>, this function retrives editable ranges only.
* @return {Array} Range instances that represent the current selection.
* @example
* var ranges = selection.<strong>getRanges()</strong>;
* alert( ranges.length );
*/
getRanges : (function()
{
var func = CKEDITOR.env.ie ?
( function()
{
function getNodeIndex( node ) { return new CKEDITOR.dom.node( node ).getIndex(); }
// Finds the container and offset for a specific boundary
// of an IE range.
var getBoundaryInformation = function( range, start )
{
// Creates a collapsed range at the requested boundary.
range = range.duplicate();
range.collapse( start );
// Gets the element that encloses the range entirely.
var parent = range.parentElement(),
doc = parent.ownerDocument;
// Empty parent element, e.g. <i>^</i>
if ( !parent.hasChildNodes() )
return { container : parent, offset : 0 };
var siblings = parent.children,
child,
sibling,
testRange = range.duplicate(),
startIndex = 0,
endIndex = siblings.length - 1,
index = -1,
position,
distance,
container;
// Binary search over all element childs to test the range to see whether
// range is right on the boundary of one element.
while ( startIndex <= endIndex )
{
index = Math.floor( ( startIndex + endIndex ) / 2 );
child = siblings[ index ];
testRange.moveToElementText( child );
position = testRange.compareEndPoints( 'StartToStart', range );
if ( position > 0 )
endIndex = index - 1;
else if ( position < 0 )
startIndex = index + 1;
else
{
// IE9 report wrong measurement with compareEndPoints when range anchors between two BRs.
// e.g. <p>text<br />^<br /></p> (#7433)
if ( CKEDITOR.env.ie9Compat && child.tagName == 'BR' )
{
// "Fall back" to w3c selection.
var sel = doc.defaultView.getSelection();
return { container : sel[ start ? 'anchorNode' : 'focusNode' ],
offset : sel[ start ? 'anchorOffset' : 'focusOffset' ] };
}
else
return { container : parent, offset : getNodeIndex( child ) };
}
}
// All childs are text nodes,
// or to the right hand of test range are all text nodes. (#6992)
if ( index == -1 || index == siblings.length - 1 && position < 0 )
{
// Adapt test range to embrace the entire parent contents.
testRange.moveToElementText( parent );
testRange.setEndPoint( 'StartToStart', range );
// IE report line break as CRLF with range.text but
// only LF with textnode.nodeValue, normalize them to avoid
// breaking character counting logic below. (#3949)
distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;
siblings = parent.childNodes;
// Actual range anchor right beside test range at the boundary of text node.
if ( !distance )
{
child = siblings[ siblings.length - 1 ];
if ( child.nodeType != CKEDITOR.NODE_TEXT )
return { container : parent, offset : siblings.length };
else
return { container : child, offset : child.nodeValue.length };
}
// Start the measuring until distance overflows, meanwhile count the text nodes.
var i = siblings.length;
while ( distance > 0 && i > 0 )
{
sibling = siblings[ --i ];
if ( sibling.nodeType == CKEDITOR.NODE_TEXT )
{
container = sibling;
distance -= sibling.nodeValue.length;
}
}
return { container : container, offset : -distance };
}
// Test range was one offset beyond OR behind the anchored text node.
else
{
// Adapt one side of test range to the actual range
// for measuring the offset between them.
testRange.collapse( position > 0 ? true : false );
testRange.setEndPoint( position > 0 ? 'StartToStart' : 'EndToStart', range );
// IE report line break as CRLF with range.text but
// only LF with textnode.nodeValue, normalize them to avoid
// breaking character counting logic below. (#3949)
distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;
// Actual range anchor right beside test range at the inner boundary of text node.
if ( !distance )
return { container : parent, offset : getNodeIndex( child ) + ( position > 0 ? 0 : 1 ) };
// Start the measuring until distance overflows, meanwhile count the text nodes.
while ( distance > 0 )
{
try
{
sibling = child[ position > 0 ? 'previousSibling' : 'nextSibling' ];
if ( sibling.nodeType == CKEDITOR.NODE_TEXT )
{
distance -= sibling.nodeValue.length;
container = sibling;
}
child = sibling;
}
// Measurement in IE could be somtimes wrong because of <select> element. (#4611)
catch( e )
{
return { container : parent, offset : getNodeIndex( child ) };
}
}
return { container : container, offset : position > 0 ? -distance : container.nodeValue.length + distance };
}
};
return function()
{
// IE doesn't have range support (in the W3C way), so we
// need to do some magic to transform selections into
// CKEDITOR.dom.range instances.
var sel = this.getNative(),
nativeRange = sel && sel.createRange(),
type = this.getType(),
range;
if ( !sel )
return [];
if ( type == CKEDITOR.SELECTION_TEXT )
{
range = new CKEDITOR.dom.range( this.document );
var boundaryInfo = getBoundaryInformation( nativeRange, true );
range.setStart( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );
boundaryInfo = getBoundaryInformation( nativeRange );
range.setEnd( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );
// Correct an invalid IE range case on empty list item. (#5850)
if ( range.endContainer.getPosition( range.startContainer ) & CKEDITOR.POSITION_PRECEDING
&& range.endOffset <= range.startContainer.getIndex() )
{
range.collapse();
}
return [ range ];
}
else if ( type == CKEDITOR.SELECTION_ELEMENT )
{
var retval = [];
for ( var i = 0 ; i < nativeRange.length ; i++ )
{
var element = nativeRange.item( i ),
parentElement = element.parentNode,
j = 0;
range = new CKEDITOR.dom.range( this.document );
for (; j < parentElement.childNodes.length && parentElement.childNodes[j] != element ; j++ )
{ /*jsl:pass*/ }
range.setStart( new CKEDITOR.dom.node( parentElement ), j );
range.setEnd( new CKEDITOR.dom.node( parentElement ), j + 1 );
retval.push( range );
}
return retval;
}
return [];
};
})()
:
function()
{
// On browsers implementing the W3C range, we simply
// tranform the native ranges in CKEDITOR.dom.range
// instances.
var ranges = [],
range,
doc = this.document,
sel = this.getNative();
if ( !sel )
return ranges;
// On WebKit, it may happen that we'll have no selection
// available. We normalize it here by replicating the
// behavior of other browsers.
if ( !sel.rangeCount )
{
range = new CKEDITOR.dom.range( doc );
range.moveToElementEditStart( doc.getBody() );
ranges.push( range );
}
for ( var i = 0 ; i < sel.rangeCount ; i++ )
{
var nativeRange = sel.getRangeAt( i );
range = new CKEDITOR.dom.range( doc );
range.setStart( new CKEDITOR.dom.node( nativeRange.startContainer ), nativeRange.startOffset );
range.setEnd( new CKEDITOR.dom.node( nativeRange.endContainer ), nativeRange.endOffset );
ranges.push( range );
}
return ranges;
};
return function( onlyEditables )
{
var cache = this._.cache;
if ( cache.ranges && !onlyEditables )
return cache.ranges;
else if ( !cache.ranges )
cache.ranges = new CKEDITOR.dom.rangeList( func.call( this ) );
// Split range into multiple by read-only nodes.
if ( onlyEditables )
{
var ranges = cache.ranges;
for ( var i = 0; i < ranges.length; i++ )
{
var range = ranges[ i ];
// Drop range spans inside one ready-only node.
var parent = range.getCommonAncestor();
if ( parent.isReadOnly() )
ranges.splice( i, 1 );
if ( range.collapsed )
continue;
// Range may start inside a non-editable element,
// replace the range start after it.
if ( range.startContainer.isReadOnly() )
{
var current = range.startContainer;
while( current )
{
if ( current.is( 'body' ) || !current.isReadOnly() )
break;
if ( current.type == CKEDITOR.NODE_ELEMENT
&& current.getAttribute( 'contentEditable' ) == 'false' )
range.setStartAfter( current );
current = current.getParent();
}
}
var startContainer = range.startContainer,
endContainer = range.endContainer,
startOffset = range.startOffset,
endOffset = range.endOffset,
walkerRange = range.clone();
// Enlarge range start/end with text node to avoid walker
// being DOM destructive, it doesn't interfere our checking
// of elements below as well.
if ( startContainer && startContainer.type == CKEDITOR.NODE_TEXT )
{
if ( startOffset >= startContainer.getLength() )
walkerRange.setStartAfter( startContainer );
else
walkerRange.setStartBefore( startContainer );
}
if ( endContainer && endContainer.type == CKEDITOR.NODE_TEXT )
{
if ( !endOffset )
walkerRange.setEndBefore( endContainer );
else
walkerRange.setEndAfter( endContainer );
}
// Looking for non-editable element inside the range.
var walker = new CKEDITOR.dom.walker( walkerRange );
walker.evaluator = function( node )
{
if ( node.type == CKEDITOR.NODE_ELEMENT
&& node.isReadOnly() )
{
var newRange = range.clone();
range.setEndBefore( node );
// Drop collapsed range around read-only elements,
// it make sure the range list empty when selecting
// only non-editable elements.
if ( range.collapsed )
ranges.splice( i--, 1 );
// Avoid creating invalid range.
if ( !( node.getPosition( walkerRange.endContainer ) & CKEDITOR.POSITION_CONTAINS ) )
{
newRange.setStartAfter( node );
if ( !newRange.collapsed )
ranges.splice( i + 1, 0, newRange );
}
return true;
}
return false;
};
walker.next();
}
}
return cache.ranges;
};
})(),
/**
* Gets the DOM element in which the selection starts.
* @returns {CKEDITOR.dom.element} The element at the beginning of the
* selection.
* @example
* var element = editor.getSelection().<strong>getStartElement()</strong>;
* alert( element.getName() );
*/
getStartElement : function()
{
var cache = this._.cache;
if ( cache.startElement !== undefined )
return cache.startElement;
var node,
sel = this.getNative();
switch ( this.getType() )
{
case CKEDITOR.SELECTION_ELEMENT :
return this.getSelectedElement();
case CKEDITOR.SELECTION_TEXT :
var range = this.getRanges()[0];
if ( range )
{
if ( !range.collapsed )
{
range.optimize();
// Decrease the range content to exclude particial
// selected node on the start which doesn't have
// visual impact. ( #3231 )
while ( 1 )
{
var startContainer = range.startContainer,
startOffset = range.startOffset;
// Limit the fix only to non-block elements.(#3950)
if ( startOffset == ( startContainer.getChildCount ?
startContainer.getChildCount() : startContainer.getLength() )
&& !startContainer.isBlockBoundary() )
range.setStartAfter( startContainer );
else break;
}
node = range.startContainer;
if ( node.type != CKEDITOR.NODE_ELEMENT )
return node.getParent();
node = node.getChild( range.startOffset );
if ( !node || node.type != CKEDITOR.NODE_ELEMENT )
node = range.startContainer;
else
{
var child = node.getFirst();
while ( child && child.type == CKEDITOR.NODE_ELEMENT )
{
node = child;
child = child.getFirst();
}
}
}
else
{
node = range.startContainer;
if ( node.type != CKEDITOR.NODE_ELEMENT )
node = node.getParent();
}
node = node.$;
}
}
return cache.startElement = ( node ? new CKEDITOR.dom.element( node ) : null );
},
/**
* Gets the currently selected element.
* @returns {CKEDITOR.dom.element} The selected element. Null if no
* selection is available or the selection type is not
* <code>{@link CKEDITOR.SELECTION_ELEMENT}</code>.
* @example
* var element = editor.getSelection().<strong>getSelectedElement()</strong>;
* alert( element.getName() );
*/
getSelectedElement : function()
{
var cache = this._.cache;
if ( cache.selectedElement !== undefined )
return cache.selectedElement;
var self = this;
var node = CKEDITOR.tools.tryThese(
// Is it native IE control type selection?
function()
{
return self.getNative().createRange().item( 0 );
},
// If a table or list is fully selected.
function()
{
var root,
retval,
range = self.getRanges()[ 0 ],
ancestor = range.getCommonAncestor( 1, 1 ),
tags = { table:1,ul:1,ol:1,dl:1 };
for ( var t in tags )
{
if ( ( root = ancestor.getAscendant( t, 1 ) ) )
break;
}
if ( root )
{
// Enlarging the start boundary.
var testRange = new CKEDITOR.dom.range( this.document );
testRange.setStartAt( root, CKEDITOR.POSITION_AFTER_START );
testRange.setEnd( range.startContainer, range.startOffset );
var enlargeables = CKEDITOR.tools.extend( tags, CKEDITOR.dtd.$listItem, CKEDITOR.dtd.$tableContent ),
walker = new CKEDITOR.dom.walker( testRange ),
// Check the range is at the inner boundary of the structural element.
guard = function( walker, isEnd )
{
return function( node, isWalkOut )
{
if ( node.type == CKEDITOR.NODE_TEXT && ( !CKEDITOR.tools.trim( node.getText() ) || node.getParent().data( 'cke-bookmark' ) ) )
return true;
var tag;
if ( node.type == CKEDITOR.NODE_ELEMENT )
{
tag = node.getName();
// Bypass bogus br at the end of block.
if ( tag == 'br' && isEnd && node.equals( node.getParent().getBogus() ) )
return true;
if ( isWalkOut && tag in enlargeables || tag in CKEDITOR.dtd.$removeEmpty )
return true;
}
walker.halted = 1;
return false;
};
};
walker.guard = guard( walker );
if ( walker.checkBackward() && !walker.halted )
{
walker = new CKEDITOR.dom.walker( testRange );
testRange.setStart( range.endContainer, range.endOffset );
testRange.setEndAt( root, CKEDITOR.POSITION_BEFORE_END );
walker.guard = guard( walker, 1 );
if ( walker.checkForward() && !walker.halted )
retval = root.$;
}
}
if ( !retval )
throw 0;
return retval;
},
// Figure it out by checking if there's a single enclosed
// node of the range.
function()
{
var range = self.getRanges()[ 0 ],
enclosed,
selected;
// Check first any enclosed element, e.g. <ul>[<li><a href="#">item</a></li>]</ul>
for ( var i = 2; i && !( ( enclosed = range.getEnclosedNode() )
&& ( enclosed.type == CKEDITOR.NODE_ELEMENT )
&& styleObjectElements[ enclosed.getName() ]
&& ( selected = enclosed ) ); i-- )
{
// Then check any deep wrapped element, e.g. [<b><i><img /></i></b>]
range.shrink( CKEDITOR.SHRINK_ELEMENT );
}
return selected.$;
});
return cache.selectedElement = ( node ? new CKEDITOR.dom.element( node ) : null );
},
/**
* Retrieves the text contained within the range. An empty string is returned for non-text selection.
* @returns {String} A string of text within the current selection.
* @since 3.6.1
* @example
* var text = editor.getSelection().<strong>getSelectedText()</strong>;
* alert( text );
*/
getSelectedText : function()
{
var cache = this._.cache;
if ( cache.selectedText !== undefined )
return cache.selectedText;
var text = '',
nativeSel = this.getNative();
if ( this.getType() == CKEDITOR.SELECTION_TEXT )
text = CKEDITOR.env.ie ? nativeSel.createRange().text : nativeSel.toString();
return ( cache.selectedText = text );
},
/**
* Locks the selection made in the editor in order to make it possible to
* manipulate it without browser interference. A locked selection is
* cached and remains unchanged until it is released with the <code>#unlock</code>
* method.
* @example
* editor.getSelection().<strong>lock()</strong>;
*/
lock : function()
{
// Call all cacheable function.
this.getRanges();
this.getStartElement();
this.getSelectedElement();
this.getSelectedText();
// The native selection is not available when locked.
this._.cache.nativeSel = {};
this.isLocked = 1;
// Save this selection inside the DOM document.
this.document.setCustomData( 'cke_locked_selection', this );
},
/**
* Unlocks the selection made in the editor and locked with the <code>#lock</code> method.
* An unlocked selection is no longer cached and can be changed.
* @param {Boolean} [restore] If set to <code>true</code>, the selection is restored back to the selection saved earlier by using the <code>#lock</code> method.
* @example
* editor.getSelection().<strong>unlock()</strong>;
*/
unlock : function( restore )
{
var doc = this.document,
lockedSelection = doc.getCustomData( 'cke_locked_selection' );
if ( lockedSelection )
{
doc.setCustomData( 'cke_locked_selection', null );
if ( restore )
{
var selectedElement = lockedSelection.getSelectedElement(),
ranges = !selectedElement && lockedSelection.getRanges();
this.isLocked = 0;
this.reset();
doc.getBody().focus();
if ( selectedElement )
this.selectElement( selectedElement );
else
this.selectRanges( ranges );
}
}
if ( !lockedSelection || !restore )
{
this.isLocked = 0;
this.reset();
}
},
/**
* Clears the selection cache.
* @example
* editor.getSelection().<strong>reset()</strong>;
*/
reset : function()
{
this._.cache = {};
},
/**
* Makes the current selection of type <code>{@link CKEDITOR.SELECTION_ELEMENT}</code> by enclosing the specified element.
* @param {CKEDITOR.dom.element} element The element to enclose in the selection.
* @example
* var element = editor.document.getById( 'sampleElement' );
* editor.getSelection.<strong>selectElement( element )</strong>;
*/
selectElement : function( element )
{
if ( this.isLocked )
{
var range = new CKEDITOR.dom.range( this.document );
range.setStartBefore( element );
range.setEndAfter( element );
this._.cache.selectedElement = element;
this._.cache.startElement = element;
this._.cache.ranges = new CKEDITOR.dom.rangeList( range );
this._.cache.type = CKEDITOR.SELECTION_ELEMENT;
return;
}
range = new CKEDITOR.dom.range( element.getDocument() );
range.setStartBefore( element );
range.setEndAfter( element );
range.select();
this.document.fire( 'selectionchange' );
this.reset();
},
/**
* Clears the original selection and adds the specified ranges
* to the document selection.
* @param {Array} ranges An array of <code>{@link CKEDITOR.dom.range}</code> instances representing ranges to be added to the document.
* @example
* var ranges = new CKEDITOR.dom.range( editor.document );
* editor.getSelection().<strong>selectRanges( [ ranges ] )</strong>;
*/
selectRanges : function( ranges )
{
if ( this.isLocked )
{
this._.cache.selectedElement = null;
this._.cache.startElement = ranges[ 0 ] && ranges[ 0 ].getTouchedStartNode();
this._.cache.ranges = new CKEDITOR.dom.rangeList( ranges );
this._.cache.type = CKEDITOR.SELECTION_TEXT;
return;
}
if ( CKEDITOR.env.ie )
{
if ( ranges.length > 1 )
{
// IE doesn't accept multiple ranges selection, so we join all into one.
var last = ranges[ ranges.length -1 ] ;
ranges[ 0 ].setEnd( last.endContainer, last.endOffset );
ranges.length = 1;
}
if ( ranges[ 0 ] )
ranges[ 0 ].select();
this.reset();
}
else
{
var sel = this.getNative();
// getNative() returns null if iframe is "display:none" in FF. (#6577)
if ( !sel )
return;
if ( ranges.length )
{
sel.removeAllRanges();
// Remove any existing filling char first.
CKEDITOR.env.webkit && removeFillingChar( this.document );
}
for ( var i = 0 ; i < ranges.length ; i++ )
{
// Joining sequential ranges introduced by
// readonly elements protection.
if ( i < ranges.length -1 )
{
var left = ranges[ i ], right = ranges[ i +1 ],
between = left.clone();
between.setStart( left.endContainer, left.endOffset );
between.setEnd( right.startContainer, right.startOffset );
// Don't confused by Firefox adjancent multi-ranges
// introduced by table cells selection.
if ( !between.collapsed )
{
between.shrink( CKEDITOR.NODE_ELEMENT, true );
var ancestor = between.getCommonAncestor(),
enclosed = between.getEnclosedNode();
// The following cases has to be considered:
// 1. <span contenteditable="false">[placeholder]</span>
// 2. <input contenteditable="false" type="radio"/> (#6621)
if ( ancestor.isReadOnly() || enclosed && enclosed.isReadOnly() )
{
right.setStart( left.startContainer, left.startOffset );
ranges.splice( i--, 1 );
continue;
}
}
}
var range = ranges[ i ];
var nativeRange = this.document.$.createRange();
var startContainer = range.startContainer;
// In FF2, if we have a collapsed range, inside an empty
// element, we must add something to it otherwise the caret
// will not be visible.
// In Opera instead, the selection will be moved out of the
// element. (#4657)
if ( range.collapsed &&
( CKEDITOR.env.opera || ( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 ) ) &&
startContainer.type == CKEDITOR.NODE_ELEMENT &&
!startContainer.getChildCount() )
{
startContainer.appendText( '' );
}
if ( range.collapsed
&& CKEDITOR.env.webkit
&& rangeRequiresFix( range ) )
{
// Append a zero-width space so WebKit will not try to
// move the selection by itself (#1272).
var fillingChar = createFillingChar( this.document );
range.insertNode( fillingChar ) ;
var next = fillingChar.getNext();
// If the filling char is followed by a <br>, whithout
// having something before it, it'll not blink.
// Let's remove it in this case.
if ( next && !fillingChar.getPrevious() && next.type == CKEDITOR.NODE_ELEMENT && next.getName() == 'br' )
{
removeFillingChar( this.document );
range.moveToPosition( next, CKEDITOR.POSITION_BEFORE_START );
}
else
range.moveToPosition( fillingChar, CKEDITOR.POSITION_AFTER_END );
}
nativeRange.setStart( range.startContainer.$, range.startOffset );
try
{
nativeRange.setEnd( range.endContainer.$, range.endOffset );
}
catch ( e )
{
// There is a bug in Firefox implementation (it would be too easy
// otherwise). The new start can't be after the end (W3C says it can).
// So, let's create a new range and collapse it to the desired point.
if ( e.toString().indexOf( 'NS_ERROR_ILLEGAL_VALUE' ) >= 0 )
{
range.collapse( 1 );
nativeRange.setEnd( range.endContainer.$, range.endOffset );
}
else
throw e;
}
// Select the range.
sel.addRange( nativeRange );
}
// Don't miss selection change event for non-IEs.
this.document.fire( 'selectionchange' );
this.reset();
}
},
/**
* Creates a bookmark for each range of this selection (from <code>#getRanges</code>)
* by calling the <code>{@link CKEDITOR.dom.range.prototype.createBookmark}</code> method,
* with extra care taken to avoid interference among those ranges. The arguments
* received are the same as with the underlying range method.
* @returns {Array} Array of bookmarks for each range.
* @example
* var bookmarks = editor.getSelection().<strong>createBookmarks()</strong>;
*/
createBookmarks : function( serializable )
{
return this.getRanges().createBookmarks( serializable );
},
/**
* Creates a bookmark for each range of this selection (from <code>#getRanges</code>)
* by calling the <code>{@link CKEDITOR.dom.range.prototype.createBookmark2}</code> method,
* with extra care taken to avoid interference among those ranges. The arguments
* received are the same as with the underlying range method.
* @returns {Array} Array of bookmarks for each range.
* @example
* var bookmarks = editor.getSelection().<strong>createBookmarks2()</strong>;
*/
createBookmarks2 : function( normalized )
{
return this.getRanges().createBookmarks2( normalized );
},
/**
* Selects the virtual ranges denoted by the bookmarks by calling <code>#selectRanges</code>.
* @param {Array} bookmarks The bookmarks representing ranges to be selected.
* @returns {CKEDITOR.dom.selection} This selection object, after the ranges were selected.
* @example
* var bookmarks = editor.getSelection().createBookmarks();
* editor.getSelection().<strong>selectBookmarks( bookmarks )</strong>;
*/
selectBookmarks : function( bookmarks )
{
var ranges = [];
for ( var i = 0 ; i < bookmarks.length ; i++ )
{
var range = new CKEDITOR.dom.range( this.document );
range.moveToBookmark( bookmarks[i] );
ranges.push( range );
}
this.selectRanges( ranges );
return this;
},
/**
* Retrieves the common ancestor node of the first range and the last range.
* @returns {CKEDITOR.dom.element} The common ancestor of the selection.
* @example
* var ancestor = editor.getSelection().<strong>getCommonAncestor()</strong>;
*/
getCommonAncestor : function()
{
var ranges = this.getRanges(),
startNode = ranges[ 0 ].startContainer,
endNode = ranges[ ranges.length - 1 ].endContainer;
return startNode.getCommonAncestor( endNode );
},
/**
* Moves the scrollbar to the starting position of the current selection.
* @example
* editor.getSelection().<strong>scrollIntoView()</strong>;
*/
scrollIntoView : function()
{
// If we have split the block, adds a temporary span at the
// range position and scroll relatively to it.
var start = this.getStartElement();
start.scrollIntoView();
}
};
})();
( function()
{
var notWhitespaces = CKEDITOR.dom.walker.whitespaces( true ),
fillerTextRegex = /\ufeff|\u00a0/,
nonCells = { table:1,tbody:1,tr:1 };
CKEDITOR.dom.range.prototype.select =
CKEDITOR.env.ie ?
// V2
function( forceExpand )
{
var collapsed = this.collapsed,
isStartMarkerAlone, dummySpan, ieRange;
// Try to make a object selection.
var selected = this.getEnclosedNode();
if ( selected )
{
try
{
ieRange = this.document.$.body.createControlRange();
ieRange.addElement( selected.$ );
ieRange.select();
return;
}
catch( er ) {}
}
// IE doesn't support selecting the entire table row/cell, move the selection into cells, e.g.
// <table><tbody><tr>[<td>cell</b></td>... => <table><tbody><tr><td>[cell</td>...
if ( this.startContainer.type == CKEDITOR.NODE_ELEMENT && this.startContainer.getName() in nonCells
|| this.endContainer.type == CKEDITOR.NODE_ELEMENT && this.endContainer.getName() in nonCells )
{
this.shrink( CKEDITOR.NODE_ELEMENT, true );
}
var bookmark = this.createBookmark();
// Create marker tags for the start and end boundaries.
var startNode = bookmark.startNode;
var endNode;
if ( !collapsed )
endNode = bookmark.endNode;
// Create the main range which will be used for the selection.
ieRange = this.document.$.body.createTextRange();
// Position the range at the start boundary.
ieRange.moveToElementText( startNode.$ );
ieRange.moveStart( 'character', 1 );
if ( endNode )
{
// Create a tool range for the end.
var ieRangeEnd = this.document.$.body.createTextRange();
// Position the tool range at the end.
ieRangeEnd.moveToElementText( endNode.$ );
// Move the end boundary of the main range to match the tool range.
ieRange.setEndPoint( 'EndToEnd', ieRangeEnd );
ieRange.moveEnd( 'character', -1 );
}
else
{
// The isStartMarkerAlone logic comes from V2. It guarantees that the lines
// will expand and that the cursor will be blinking on the right place.
// Actually, we are using this flag just to avoid using this hack in all
// situations, but just on those needed.
var next = startNode.getNext( notWhitespaces );
isStartMarkerAlone = ( !( next && next.getText && next.getText().match( fillerTextRegex ) ) // already a filler there?
&& ( forceExpand || !startNode.hasPrevious() || ( startNode.getPrevious().is && startNode.getPrevious().is( 'br' ) ) ) );
// Append a temporary <span></span> before the selection.
// This is needed to avoid IE destroying selections inside empty
// inline elements, like <b></b> (#253).
// It is also needed when placing the selection right after an inline
// element to avoid the selection moving inside of it.
dummySpan = this.document.createElement( 'span' );
dummySpan.setHtml( '' ); // Zero Width No-Break Space (U+FEFF). See #1359.
dummySpan.insertBefore( startNode );
if ( isStartMarkerAlone )
{
// To expand empty blocks or line spaces after <br>, we need
// instead to have any char, which will be later deleted using the
// selection.
// \ufeff = Zero Width No-Break Space (U+FEFF). (#1359)
this.document.createText( '\ufeff' ).insertBefore( startNode );
}
}
// Remove the markers (reset the position, because of the changes in the DOM tree).
this.setStartBefore( startNode );
startNode.remove();
if ( collapsed )
{
if ( isStartMarkerAlone )
{
// Move the selection start to include the temporary \ufeff.
ieRange.moveStart( 'character', -1 );
ieRange.select();
// Remove our temporary stuff.
this.document.$.selection.clear();
}
else
ieRange.select();
this.moveToPosition( dummySpan, CKEDITOR.POSITION_BEFORE_START );
dummySpan.remove();
}
else
{
this.setEndBefore( endNode );
endNode.remove();
ieRange.select();
}
this.document.fire( 'selectionchange' );
}
:
function()
{
this.document.getSelection().selectRanges( [ this ] );
};
} )();
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