source: trunk/admin/inc/ckeditor/_source/plugins/selection/plugin.js@ 240

Last change on this file since 240 was 239, checked in by luc, 9 years ago

Admin: correzione visulaizzazione immissione dati spoglio per Chrome e Safari - Aggiornamento dell'editor da FCKeditor a CKeditor , accessibili anche a Chrome e Safari.

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File size: 53.0 KB
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1/*
2Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
3For licensing, see LICENSE.html or http://ckeditor.com/license
4*/
5
6(function()
7{
8 // #### checkSelectionChange : START
9
10 // The selection change check basically saves the element parent tree of
11 // the current node and check it on successive requests. If there is any
12 // change on the tree, then the selectionChange event gets fired.
13 function checkSelectionChange()
14 {
15 try
16 {
17 // In IE, the "selectionchange" event may still get thrown when
18 // releasing the WYSIWYG mode, so we need to check it first.
19 var sel = this.getSelection();
20 if ( !sel || !sel.document.getWindow().$ )
21 return;
22
23 var firstElement = sel.getStartElement();
24 var currentPath = new CKEDITOR.dom.elementPath( firstElement );
25
26 if ( !currentPath.compare( this._.selectionPreviousPath ) )
27 {
28 this._.selectionPreviousPath = currentPath;
29 this.fire( 'selectionChange', { selection : sel, path : currentPath, element : firstElement } );
30 }
31 }
32 catch (e)
33 {}
34 }
35
36 var checkSelectionChangeTimer,
37 checkSelectionChangeTimeoutPending;
38
39 function checkSelectionChangeTimeout()
40 {
41 // Firing the "OnSelectionChange" event on every key press started to
42 // be too slow. This function guarantees that there will be at least
43 // 200ms delay between selection checks.
44
45 checkSelectionChangeTimeoutPending = true;
46
47 if ( checkSelectionChangeTimer )
48 return;
49
50 checkSelectionChangeTimeoutExec.call( this );
51
52 checkSelectionChangeTimer = CKEDITOR.tools.setTimeout( checkSelectionChangeTimeoutExec, 200, this );
53 }
54
55 function checkSelectionChangeTimeoutExec()
56 {
57 checkSelectionChangeTimer = null;
58
59 if ( checkSelectionChangeTimeoutPending )
60 {
61 // Call this with a timeout so the browser properly moves the
62 // selection after the mouseup. It happened that the selection was
63 // being moved after the mouseup when clicking inside selected text
64 // with Firefox.
65 CKEDITOR.tools.setTimeout( checkSelectionChange, 0, this );
66
67 checkSelectionChangeTimeoutPending = false;
68 }
69 }
70
71 // #### checkSelectionChange : END
72
73 function rangeRequiresFix( range )
74 {
75 function isInlineCt( node )
76 {
77 return node && node.type == CKEDITOR.NODE_ELEMENT
78 && node.getName() in CKEDITOR.dtd.$removeEmpty;
79 }
80
81 function singletonBlock( node )
82 {
83 var body = range.document.getBody();
84 return !node.is( 'body' ) && body.getChildCount() == 1;
85 }
86
87 var start = range.startContainer,
88 offset = range.startOffset;
89
90 if ( start.type == CKEDITOR.NODE_TEXT )
91 return false;
92
93 // 1. Empty inline element. <span>^</span>
94 // 2. Adjoin to inline element. <p><strong>text</strong>^</p>
95 // 3. The only empty block in document. <body><p>^</p></body> (#7222)
96 return !CKEDITOR.tools.trim( start.getHtml() ) ? isInlineCt( start ) || singletonBlock( start )
97 : isInlineCt( start.getChild( offset - 1 ) ) || isInlineCt( start.getChild( offset ) );
98 }
99
100 var selectAllCmd =
101 {
102 modes : { wysiwyg : 1, source : 1 },
103 readOnly : CKEDITOR.env.ie || CKEDITOR.env.webkit,
104 exec : function( editor )
105 {
106 switch ( editor.mode )
107 {
108 case 'wysiwyg' :
109 editor.document.$.execCommand( 'SelectAll', false, null );
110 // Force triggering selectionChange (#7008)
111 editor.forceNextSelectionCheck();
112 editor.selectionChange();
113 break;
114 case 'source' :
115 // Select the contents of the textarea
116 var textarea = editor.textarea.$;
117 if ( CKEDITOR.env.ie )
118 textarea.createTextRange().execCommand( 'SelectAll' );
119 else
120 {
121 textarea.selectionStart = 0;
122 textarea.selectionEnd = textarea.value.length;
123 }
124 textarea.focus();
125 }
126 },
127 canUndo : false
128 };
129
130 function createFillingChar( doc )
131 {
132 removeFillingChar( doc );
133
134 var fillingChar = doc.createText( '\u200B' );
135 doc.setCustomData( 'cke-fillingChar', fillingChar );
136
137 return fillingChar;
138 }
139
140 function getFillingChar( doc )
141 {
142 return doc && doc.getCustomData( 'cke-fillingChar' );
143 }
144
145 // Checks if a filling char has been used, eventualy removing it (#1272).
146 function checkFillingChar( doc )
147 {
148 var fillingChar = doc && getFillingChar( doc );
149 if ( fillingChar )
150 {
151 // Use this flag to avoid removing the filling char right after
152 // creating it.
153 if ( fillingChar.getCustomData( 'ready' ) )
154 removeFillingChar( doc );
155 else
156 fillingChar.setCustomData( 'ready', 1 );
157 }
158 }
159
160 function removeFillingChar( doc )
161 {
162 var fillingChar = doc && doc.removeCustomData( 'cke-fillingChar' );
163 if ( fillingChar )
164 {
165 // We can't simply remove the filling node because the user
166 // will actually enlarge it when typing, so we just remove the
167 // invisible char from it.
168 fillingChar.setText( fillingChar.getText().replace( /\u200B/g, '' ) );
169 fillingChar = 0;
170 }
171 }
172
173 CKEDITOR.plugins.add( 'selection',
174 {
175 init : function( editor )
176 {
177 // On WebKit only, we need a special "filling" char on some situations
178 // (#1272). Here we set the events that should invalidate that char.
179 if ( CKEDITOR.env.webkit )
180 {
181 editor.on( 'selectionChange', function() { checkFillingChar( editor.document ); } );
182 editor.on( 'beforeSetMode', function() { removeFillingChar( editor.document ); } );
183 editor.on( 'key', function( e )
184 {
185 // Remove the filling char before some keys get
186 // executed, so they'll not get blocked by it.
187 switch ( e.data.keyCode )
188 {
189 case 13 : // ENTER
190 case CKEDITOR.SHIFT + 13 : // SHIFT-ENTER
191 case 37 : // LEFT-ARROW
192 case 39 : // RIGHT-ARROW
193 case 8 : // BACKSPACE
194 removeFillingChar( editor.document );
195 }
196 }, null, null, 10 );
197
198 var fillingCharBefore,
199 resetSelection;
200
201 function beforeData()
202 {
203 var doc = editor.document,
204 fillingChar = getFillingChar( doc );
205
206 if ( fillingChar )
207 {
208 // If cursor is right blinking by side of the filler node, save it for restoring,
209 // as the following text substitution will blind it. (#7437)
210 var sel = doc.$.defaultView.getSelection();
211 if ( sel.type == 'Caret' && sel.anchorNode == fillingChar.$ )
212 resetSelection = 1;
213
214 fillingCharBefore = fillingChar.getText();
215 fillingChar.setText( fillingCharBefore.replace( /\u200B/g, '' ) );
216 }
217 }
218 function afterData()
219 {
220 var doc = editor.document,
221 fillingChar = getFillingChar( doc );
222
223 if ( fillingChar )
224 {
225 fillingChar.setText( fillingCharBefore );
226
227 if ( resetSelection )
228 {
229 doc.$.defaultView.getSelection().setPosition( fillingChar.$,fillingChar.getLength() );
230 resetSelection = 0;
231 }
232 }
233 }
234 editor.on( 'beforeUndoImage', beforeData );
235 editor.on( 'afterUndoImage', afterData );
236 editor.on( 'beforeGetData', beforeData, null, null, 0 );
237 editor.on( 'getData', afterData );
238 }
239
240 editor.on( 'contentDom', function()
241 {
242 var doc = editor.document,
243 body = doc.getBody(),
244 html = doc.getDocumentElement();
245
246 if ( CKEDITOR.env.ie )
247 {
248 // Other browsers don't loose the selection if the
249 // editor document loose the focus. In IE, we don't
250 // have support for it, so we reproduce it here, other
251 // than firing the selection change event.
252
253 var savedRange,
254 saveEnabled,
255 restoreEnabled = 1;
256
257 // "onfocusin" is fired before "onfocus". It makes it
258 // possible to restore the selection before click
259 // events get executed.
260 body.on( 'focusin', function( evt )
261 {
262 // If there are elements with layout they fire this event but
263 // it must be ignored to allow edit its contents #4682
264 if ( evt.data.$.srcElement.nodeName != 'BODY' )
265 return;
266
267 // If we have saved a range, restore it at this
268 // point.
269 if ( savedRange )
270 {
271 if ( restoreEnabled )
272 {
273 // Well not break because of this.
274 try
275 {
276 savedRange.select();
277 }
278 catch (e)
279 {}
280
281 // Update locked selection because of the normalized text nodes. (#6083, #6987)
282 var lockedSelection = doc.getCustomData( 'cke_locked_selection' );
283 if ( lockedSelection )
284 {
285 lockedSelection.unlock();
286 lockedSelection.lock();
287 }
288 }
289
290 savedRange = null;
291 }
292 });
293
294 body.on( 'focus', function()
295 {
296 // Enable selections to be saved.
297 saveEnabled = 1;
298
299 saveSelection();
300 });
301
302 body.on( 'beforedeactivate', function( evt )
303 {
304 // Ignore this event if it's caused by focus switch between
305 // internal editable control type elements, e.g. layouted paragraph. (#4682)
306 if ( evt.data.$.toElement )
307 return;
308
309 // Disable selections from being saved.
310 saveEnabled = 0;
311 restoreEnabled = 1;
312 });
313
314 // IE before version 8 will leave cursor blinking inside the document after
315 // editor blurred unless we clean up the selection. (#4716)
316 if ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 )
317 {
318 editor.on( 'blur', function( evt )
319 {
320 // Try/Catch to avoid errors if the editor is hidden. (#6375)
321 try
322 {
323 editor.document && editor.document.$.selection.empty();
324 }
325 catch (e) {}
326 });
327 }
328
329 // Listening on document element ensures that
330 // scrollbar is included. (#5280)
331 html.on( 'mousedown', function()
332 {
333 // Lock restore selection now, as we have
334 // a followed 'click' event which introduce
335 // new selection. (#5735)
336 restoreEnabled = 0;
337 });
338
339 html.on( 'mouseup', function()
340 {
341 restoreEnabled = 1;
342 });
343
344 // In IE6/7 the blinking cursor appears, but contents are
345 // not editable. (#5634)
346 if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.version < 8 || CKEDITOR.env.quirks ) )
347 {
348 // The 'click' event is not fired when clicking the
349 // scrollbars, so we can use it to check whether
350 // the empty space following <body> has been clicked.
351 html.on( 'click', function( evt )
352 {
353 if ( evt.data.getTarget().getName() == 'html' )
354 editor.getSelection().getRanges()[ 0 ].select();
355 });
356 }
357
358 var scroll;
359 // IE fires the "selectionchange" event when clicking
360 // inside a selection. We don't want to capture that.
361 body.on( 'mousedown', function( evt )
362 {
363 // IE scrolls document to top on right mousedown
364 // when editor has no focus, remember this scroll
365 // position and revert it before context menu opens. (#5778)
366 if ( evt.data.$.button == 2 )
367 {
368 var sel = editor.document.$.selection;
369 if ( sel.type == 'None' )
370 scroll = editor.window.getScrollPosition();
371 }
372 disableSave();
373 });
374
375 body.on( 'mouseup',
376 function( evt )
377 {
378 // Restore recorded scroll position when needed on right mouseup.
379 if ( evt.data.$.button == 2 && scroll )
380 {
381 editor.document.$.documentElement.scrollLeft = scroll.x;
382 editor.document.$.documentElement.scrollTop = scroll.y;
383 }
384 scroll = null;
385
386 saveEnabled = 1;
387 setTimeout( function()
388 {
389 saveSelection( true );
390 },
391 0 );
392 });
393
394 body.on( 'keydown', disableSave );
395 body.on( 'keyup',
396 function()
397 {
398 saveEnabled = 1;
399 saveSelection();
400 });
401
402
403 // IE is the only to provide the "selectionchange"
404 // event.
405 doc.on( 'selectionchange', saveSelection );
406
407 function disableSave()
408 {
409 saveEnabled = 0;
410 }
411
412 function saveSelection( testIt )
413 {
414 if ( saveEnabled )
415 {
416 var doc = editor.document,
417 sel = editor.getSelection(),
418 nativeSel = sel && sel.getNative();
419
420 // There is a very specific case, when clicking
421 // inside a text selection. In that case, the
422 // selection collapses at the clicking point,
423 // but the selection object remains in an
424 // unknown state, making createRange return a
425 // range at the very start of the document. In
426 // such situation we have to test the range, to
427 // be sure it's valid.
428 if ( testIt && nativeSel && nativeSel.type == 'None' )
429 {
430 // The "InsertImage" command can be used to
431 // test whether the selection is good or not.
432 // If not, it's enough to give some time to
433 // IE to put things in order for us.
434 if ( !doc.$.queryCommandEnabled( 'InsertImage' ) )
435 {
436 CKEDITOR.tools.setTimeout( saveSelection, 50, this, true );
437 return;
438 }
439 }
440
441 // Avoid saving selection from within text input. (#5747)
442 var parentTag;
443 if ( nativeSel && nativeSel.type && nativeSel.type != 'Control'
444 && ( parentTag = nativeSel.createRange() )
445 && ( parentTag = parentTag.parentElement() )
446 && ( parentTag = parentTag.nodeName )
447 && parentTag.toLowerCase() in { input: 1, textarea : 1 } )
448 {
449 return;
450 }
451
452 savedRange = nativeSel && sel.getRanges()[ 0 ];
453
454 checkSelectionChangeTimeout.call( editor );
455 }
456 }
457 }
458 else
459 {
460 // In other browsers, we make the selection change
461 // check based on other events, like clicks or keys
462 // press.
463
464 doc.on( 'mouseup', checkSelectionChangeTimeout, editor );
465 doc.on( 'keyup', checkSelectionChangeTimeout, editor );
466 doc.on( 'selectionchange', checkSelectionChangeTimeout, editor );
467 }
468 });
469
470 // Clear the cached range path before unload. (#7174)
471 editor.on( 'contentDomUnload', editor.forceNextSelectionCheck, editor );
472
473 editor.addCommand( 'selectAll', selectAllCmd );
474 editor.ui.addButton( 'SelectAll',
475 {
476 label : editor.lang.selectAll,
477 command : 'selectAll'
478 });
479
480 editor.selectionChange = checkSelectionChangeTimeout;
481
482 // IE9 might cease to work if there's an object selection inside the iframe (#7639).
483 CKEDITOR.env.ie9Compat && editor.on( 'destroy', function()
484 {
485 var sel = editor.getSelection();
486 sel && sel.getNative().clear();
487 }, null, null, 9 );
488 }
489 });
490
491 /**
492 * Gets the current selection from the editing area when in WYSIWYG mode.
493 * @returns {CKEDITOR.dom.selection} A selection object or null if not in
494 * WYSIWYG mode or no selection is available.
495 * @example
496 * var selection = CKEDITOR.instances.editor1.<strong>getSelection()</strong>;
497 * alert( selection.getType() );
498 */
499 CKEDITOR.editor.prototype.getSelection = function()
500 {
501 return this.document && this.document.getSelection();
502 };
503
504 CKEDITOR.editor.prototype.forceNextSelectionCheck = function()
505 {
506 delete this._.selectionPreviousPath;
507 };
508
509 /**
510 * Gets the current selection from the document.
511 * @returns {CKEDITOR.dom.selection} A selection object.
512 * @example
513 * var selection = CKEDITOR.instances.editor1.document.<strong>getSelection()</strong>;
514 * alert( selection.getType() );
515 */
516 CKEDITOR.dom.document.prototype.getSelection = function()
517 {
518 var sel = new CKEDITOR.dom.selection( this );
519 return ( !sel || sel.isInvalid ) ? null : sel;
520 };
521
522 /**
523 * No selection.
524 * @constant
525 * @example
526 * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_NONE )
527 * alert( 'Nothing is selected' );
528 */
529 CKEDITOR.SELECTION_NONE = 1;
530
531 /**
532 * A text or a collapsed selection.
533 * @constant
534 * @example
535 * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT )
536 * alert( 'A text is selected' );
537 */
538 CKEDITOR.SELECTION_TEXT = 2;
539
540 /**
541 * Element selection.
542 * @constant
543 * @example
544 * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_ELEMENT )
545 * alert( 'An element is selected' );
546 */
547 CKEDITOR.SELECTION_ELEMENT = 3;
548
549 /**
550 * Manipulates the selection in a DOM document.
551 * @constructor
552 * @param {CKEDITOR.dom.document} document The DOM document that contains the selection.
553 * @example
554 * var sel = new <strong>CKEDITOR.dom.selection( CKEDITOR.document )</strong>;
555 */
556 CKEDITOR.dom.selection = function( document )
557 {
558 var lockedSelection = document.getCustomData( 'cke_locked_selection' );
559
560 if ( lockedSelection )
561 return lockedSelection;
562
563 this.document = document;
564 this.isLocked = 0;
565 this._ =
566 {
567 cache : {}
568 };
569
570 /**
571 * IE BUG: The selection's document may be a different document than the
572 * editor document. Return null if that is the case.
573 */
574 if ( CKEDITOR.env.ie )
575 {
576 var range = this.getNative().createRange();
577 if ( !range
578 || ( range.item && range.item(0).ownerDocument != this.document.$ )
579 || ( range.parentElement && range.parentElement().ownerDocument != this.document.$ ) )
580 {
581 this.isInvalid = true;
582 }
583 }
584
585 return this;
586 };
587
588 var styleObjectElements =
589 {
590 img:1,hr:1,li:1,table:1,tr:1,td:1,th:1,embed:1,object:1,ol:1,ul:1,
591 a:1,input:1,form:1,select:1,textarea:1,button:1,fieldset:1,thead:1,tfoot:1
592 };
593
594 CKEDITOR.dom.selection.prototype =
595 {
596 /**
597 * Gets the native selection object from the browser.
598 * @function
599 * @returns {Object} The native browser selection object.
600 * @example
601 * var selection = editor.getSelection().<strong>getNative()</strong>;
602 */
603 getNative :
604 CKEDITOR.env.ie ?
605 function()
606 {
607 return this._.cache.nativeSel || ( this._.cache.nativeSel = this.document.$.selection );
608 }
609 :
610 function()
611 {
612 return this._.cache.nativeSel || ( this._.cache.nativeSel = this.document.getWindow().$.getSelection() );
613 },
614
615 /**
616 * Gets the type of the current selection. The following values are
617 * available:
618 * <ul>
619 * <li><code>{@link CKEDITOR.SELECTION_NONE}</code> (1): No selection.</li>
620 * <li><code>{@link CKEDITOR.SELECTION_TEXT}</code> (2): A text or a collapsed
621 * selection is selected.</li>
622 * <li><code>{@link CKEDITOR.SELECTION_ELEMENT}</code> (3): An element is
623 * selected.</li>
624 * </ul>
625 * @function
626 * @returns {Number} One of the following constant values:
627 * <code>{@link CKEDITOR.SELECTION_NONE}</code>, <code>{@link CKEDITOR.SELECTION_TEXT}</code>, or
628 * <code>{@link CKEDITOR.SELECTION_ELEMENT}</code>.
629 * @example
630 * if ( editor.getSelection().<strong>getType()</strong> == CKEDITOR.SELECTION_TEXT )
631 * alert( 'A text is selected' );
632 */
633 getType :
634 CKEDITOR.env.ie ?
635 function()
636 {
637 var cache = this._.cache;
638 if ( cache.type )
639 return cache.type;
640
641 var type = CKEDITOR.SELECTION_NONE;
642
643 try
644 {
645 var sel = this.getNative(),
646 ieType = sel.type;
647
648 if ( ieType == 'Text' )
649 type = CKEDITOR.SELECTION_TEXT;
650
651 if ( ieType == 'Control' )
652 type = CKEDITOR.SELECTION_ELEMENT;
653
654 // It is possible that we can still get a text range
655 // object even when type == 'None' is returned by IE.
656 // So we'd better check the object returned by
657 // createRange() rather than by looking at the type.
658 if ( sel.createRange().parentElement )
659 type = CKEDITOR.SELECTION_TEXT;
660 }
661 catch(e) {}
662
663 return ( cache.type = type );
664 }
665 :
666 function()
667 {
668 var cache = this._.cache;
669 if ( cache.type )
670 return cache.type;
671
672 var type = CKEDITOR.SELECTION_TEXT;
673
674 var sel = this.getNative();
675
676 if ( !sel )
677 type = CKEDITOR.SELECTION_NONE;
678 else if ( sel.rangeCount == 1 )
679 {
680 // Check if the actual selection is a control (IMG,
681 // TABLE, HR, etc...).
682
683 var range = sel.getRangeAt(0),
684 startContainer = range.startContainer;
685
686 if ( startContainer == range.endContainer
687 && startContainer.nodeType == 1
688 && ( range.endOffset - range.startOffset ) == 1
689 && styleObjectElements[ startContainer.childNodes[ range.startOffset ].nodeName.toLowerCase() ] )
690 {
691 type = CKEDITOR.SELECTION_ELEMENT;
692 }
693 }
694
695 return ( cache.type = type );
696 },
697
698 /**
699 * Retrieves the <code>{@link CKEDITOR.dom.range}</code> instances that represent the current selection.
700 * Note: Some browsers return multiple ranges even for a continuous selection. Firefox, for example, returns
701 * one range for each table cell when one or more table rows are selected.
702 * @function
703 * @param {Boolean} [onlyEditables] If set to <code>true</code>, this function retrives editable ranges only.
704 * @return {Array} Range instances that represent the current selection.
705 * @example
706 * var ranges = selection.<strong>getRanges()</strong>;
707 * alert( ranges.length );
708 */
709 getRanges : (function()
710 {
711 var func = CKEDITOR.env.ie ?
712 ( function()
713 {
714 function getNodeIndex( node ) { return new CKEDITOR.dom.node( node ).getIndex(); }
715
716 // Finds the container and offset for a specific boundary
717 // of an IE range.
718 var getBoundaryInformation = function( range, start )
719 {
720 // Creates a collapsed range at the requested boundary.
721 range = range.duplicate();
722 range.collapse( start );
723
724 // Gets the element that encloses the range entirely.
725 var parent = range.parentElement(),
726 doc = parent.ownerDocument;
727
728 // Empty parent element, e.g. <i>^</i>
729 if ( !parent.hasChildNodes() )
730 return { container : parent, offset : 0 };
731
732 var siblings = parent.children,
733 child,
734 sibling,
735 testRange = range.duplicate(),
736 startIndex = 0,
737 endIndex = siblings.length - 1,
738 index = -1,
739 position,
740 distance;
741
742 // Binary search over all element childs to test the range to see whether
743 // range is right on the boundary of one element.
744 while ( startIndex <= endIndex )
745 {
746 index = Math.floor( ( startIndex + endIndex ) / 2 );
747 child = siblings[ index ];
748 testRange.moveToElementText( child );
749 position = testRange.compareEndPoints( 'StartToStart', range );
750
751 if ( position > 0 )
752 endIndex = index - 1;
753 else if ( position < 0 )
754 startIndex = index + 1;
755 else
756 {
757 // IE9 report wrong measurement with compareEndPoints when range anchors between two BRs.
758 // e.g. <p>text<br />^<br /></p> (#7433)
759 if ( CKEDITOR.env.ie9Compat && child.tagName == 'BR' )
760 {
761 var bmId = 'cke_range_marker';
762 range.execCommand( 'CreateBookmark', false, bmId );
763 child = doc.getElementsByName( bmId )[ 0 ];
764 var offset = getNodeIndex( child );
765 parent.removeChild( child );
766 return { container : parent, offset : offset };
767 }
768 else
769 return { container : parent, offset : getNodeIndex( child ) };
770 }
771 }
772
773 // All childs are text nodes,
774 // or to the right hand of test range are all text nodes. (#6992)
775 if ( index == -1 || index == siblings.length - 1 && position < 0 )
776 {
777 // Adapt test range to embrace the entire parent contents.
778 testRange.moveToElementText( parent );
779 testRange.setEndPoint( 'StartToStart', range );
780
781 // IE report line break as CRLF with range.text but
782 // only LF with textnode.nodeValue, normalize them to avoid
783 // breaking character counting logic below. (#3949)
784 distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;
785
786 siblings = parent.childNodes;
787
788 // Actual range anchor right beside test range at the boundary of text node.
789 if ( !distance )
790 {
791 child = siblings[ siblings.length - 1 ];
792
793 if ( child.nodeType == CKEDITOR.NODE_ELEMENT )
794 return { container : parent, offset : siblings.length };
795 else
796 return { container : child, offset : child.nodeValue.length };
797 }
798
799 // Start the measuring until distance overflows, meanwhile count the text nodes.
800 var i = siblings.length;
801 while ( distance > 0 )
802 distance -= siblings[ --i ].nodeValue.length;
803
804 return { container : siblings[ i ], offset : -distance };
805 }
806 // Test range was one offset beyond OR behind the anchored text node.
807 else
808 {
809 // Adapt one side of test range to the actual range
810 // for measuring the offset between them.
811 testRange.collapse( position > 0 ? true : false );
812 testRange.setEndPoint( position > 0 ? 'StartToStart' : 'EndToStart', range );
813
814 // IE report line break as CRLF with range.text but
815 // only LF with textnode.nodeValue, normalize them to avoid
816 // breaking character counting logic below. (#3949)
817 distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;
818
819 // Actual range anchor right beside test range at the inner boundary of text node.
820 if ( !distance )
821 return { container : parent, offset : getNodeIndex( child ) + ( position > 0 ? 0 : 1 ) };
822
823 // Start the measuring until distance overflows, meanwhile count the text nodes.
824 while ( distance > 0 )
825 {
826 try
827 {
828 sibling = child[ position > 0 ? 'previousSibling' : 'nextSibling' ];
829 distance -= sibling.nodeValue.length;
830 child = sibling;
831 }
832 // Measurement in IE could be somtimes wrong because of <select> element. (#4611)
833 catch( e )
834 {
835 return { container : parent, offset : getNodeIndex( child ) };
836 }
837 }
838
839 return { container : child, offset : position > 0 ? -distance : child.nodeValue.length + distance };
840 }
841 };
842
843 return function()
844 {
845 // IE doesn't have range support (in the W3C way), so we
846 // need to do some magic to transform selections into
847 // CKEDITOR.dom.range instances.
848
849 var sel = this.getNative(),
850 nativeRange = sel && sel.createRange(),
851 type = this.getType(),
852 range;
853
854 if ( !sel )
855 return [];
856
857 if ( type == CKEDITOR.SELECTION_TEXT )
858 {
859 range = new CKEDITOR.dom.range( this.document );
860
861 var boundaryInfo = getBoundaryInformation( nativeRange, true );
862 range.setStart( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );
863
864 boundaryInfo = getBoundaryInformation( nativeRange );
865 range.setEnd( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );
866
867 // Correct an invalid IE range case on empty list item. (#5850)
868 if ( range.endContainer.getPosition( range.startContainer ) & CKEDITOR.POSITION_PRECEDING
869 && range.endOffset <= range.startContainer.getIndex() )
870 {
871 range.collapse();
872 }
873
874 return [ range ];
875 }
876 else if ( type == CKEDITOR.SELECTION_ELEMENT )
877 {
878 var retval = [];
879
880 for ( var i = 0 ; i < nativeRange.length ; i++ )
881 {
882 var element = nativeRange.item( i ),
883 parentElement = element.parentNode,
884 j = 0;
885
886 range = new CKEDITOR.dom.range( this.document );
887
888 for (; j < parentElement.childNodes.length && parentElement.childNodes[j] != element ; j++ )
889 { /*jsl:pass*/ }
890
891 range.setStart( new CKEDITOR.dom.node( parentElement ), j );
892 range.setEnd( new CKEDITOR.dom.node( parentElement ), j + 1 );
893 retval.push( range );
894 }
895
896 return retval;
897 }
898
899 return [];
900 };
901 })()
902 :
903 function()
904 {
905
906 // On browsers implementing the W3C range, we simply
907 // tranform the native ranges in CKEDITOR.dom.range
908 // instances.
909
910 var ranges = [],
911 range,
912 doc = this.document,
913 sel = this.getNative();
914
915 if ( !sel )
916 return ranges;
917
918 // On WebKit, it may happen that we'll have no selection
919 // available. We normalize it here by replicating the
920 // behavior of other browsers.
921 if ( !sel.rangeCount )
922 {
923 range = new CKEDITOR.dom.range( doc );
924 range.moveToElementEditStart( doc.getBody() );
925 ranges.push( range );
926 }
927
928 for ( var i = 0 ; i < sel.rangeCount ; i++ )
929 {
930 var nativeRange = sel.getRangeAt( i );
931
932 range = new CKEDITOR.dom.range( doc );
933
934 range.setStart( new CKEDITOR.dom.node( nativeRange.startContainer ), nativeRange.startOffset );
935 range.setEnd( new CKEDITOR.dom.node( nativeRange.endContainer ), nativeRange.endOffset );
936 ranges.push( range );
937 }
938 return ranges;
939 };
940
941 return function( onlyEditables )
942 {
943 var cache = this._.cache;
944 if ( cache.ranges && !onlyEditables )
945 return cache.ranges;
946 else if ( !cache.ranges )
947 cache.ranges = new CKEDITOR.dom.rangeList( func.call( this ) );
948
949 // Split range into multiple by read-only nodes.
950 if ( onlyEditables )
951 {
952 var ranges = cache.ranges;
953 for ( var i = 0; i < ranges.length; i++ )
954 {
955 var range = ranges[ i ];
956
957 // Drop range spans inside one ready-only node.
958 var parent = range.getCommonAncestor();
959 if ( parent.isReadOnly() )
960 ranges.splice( i, 1 );
961
962 if ( range.collapsed )
963 continue;
964
965 // Range may start inside a non-editable element,
966 // replace the range start after it.
967 if ( range.startContainer.isReadOnly() )
968 {
969 var current = range.startContainer;
970 while( current )
971 {
972 if ( current.is( 'body' ) || !current.isReadOnly() )
973 break;
974
975 if ( current.type == CKEDITOR.NODE_ELEMENT
976 && current.getAttribute( 'contentEditable' ) == 'false' )
977 range.setStartAfter( current );
978
979 current = current.getParent();
980 }
981 }
982
983 var startContainer = range.startContainer,
984 endContainer = range.endContainer,
985 startOffset = range.startOffset,
986 endOffset = range.endOffset,
987 walkerRange = range.clone();
988
989 // Enlarge range start/end with text node to avoid walker
990 // being DOM destructive, it doesn't interfere our checking
991 // of elements below as well.
992 if ( startContainer && startContainer.type == CKEDITOR.NODE_TEXT )
993 {
994 if ( startOffset >= startContainer.getLength() )
995 walkerRange.setStartAfter( startContainer );
996 else
997 walkerRange.setStartBefore( startContainer );
998 }
999
1000 if ( endContainer && endContainer.type == CKEDITOR.NODE_TEXT )
1001 {
1002 if ( !endOffset )
1003 walkerRange.setEndBefore( endContainer );
1004 else
1005 walkerRange.setEndAfter( endContainer );
1006 }
1007
1008 // Looking for non-editable element inside the range.
1009 var walker = new CKEDITOR.dom.walker( walkerRange );
1010 walker.evaluator = function( node )
1011 {
1012 if ( node.type == CKEDITOR.NODE_ELEMENT
1013 && node.isReadOnly() )
1014 {
1015 var newRange = range.clone();
1016 range.setEndBefore( node );
1017
1018 // Drop collapsed range around read-only elements,
1019 // it make sure the range list empty when selecting
1020 // only non-editable elements.
1021 if ( range.collapsed )
1022 ranges.splice( i--, 1 );
1023
1024 // Avoid creating invalid range.
1025 if ( !( node.getPosition( walkerRange.endContainer ) & CKEDITOR.POSITION_CONTAINS ) )
1026 {
1027 newRange.setStartAfter( node );
1028 if ( !newRange.collapsed )
1029 ranges.splice( i + 1, 0, newRange );
1030 }
1031
1032 return true;
1033 }
1034
1035 return false;
1036 };
1037
1038 walker.next();
1039 }
1040 }
1041
1042 return cache.ranges;
1043 };
1044 })(),
1045
1046 /**
1047 * Gets the DOM element in which the selection starts.
1048 * @returns {CKEDITOR.dom.element} The element at the beginning of the
1049 * selection.
1050 * @example
1051 * var element = editor.getSelection().<strong>getStartElement()</strong>;
1052 * alert( element.getName() );
1053 */
1054 getStartElement : function()
1055 {
1056 var cache = this._.cache;
1057 if ( cache.startElement !== undefined )
1058 return cache.startElement;
1059
1060 var node,
1061 sel = this.getNative();
1062
1063 switch ( this.getType() )
1064 {
1065 case CKEDITOR.SELECTION_ELEMENT :
1066 return this.getSelectedElement();
1067
1068 case CKEDITOR.SELECTION_TEXT :
1069
1070 var range = this.getRanges()[0];
1071
1072 if ( range )
1073 {
1074 if ( !range.collapsed )
1075 {
1076 range.optimize();
1077
1078 // Decrease the range content to exclude particial
1079 // selected node on the start which doesn't have
1080 // visual impact. ( #3231 )
1081 while ( 1 )
1082 {
1083 var startContainer = range.startContainer,
1084 startOffset = range.startOffset;
1085 // Limit the fix only to non-block elements.(#3950)
1086 if ( startOffset == ( startContainer.getChildCount ?
1087 startContainer.getChildCount() : startContainer.getLength() )
1088 && !startContainer.isBlockBoundary() )
1089 range.setStartAfter( startContainer );
1090 else break;
1091 }
1092
1093 node = range.startContainer;
1094
1095 if ( node.type != CKEDITOR.NODE_ELEMENT )
1096 return node.getParent();
1097
1098 node = node.getChild( range.startOffset );
1099
1100 if ( !node || node.type != CKEDITOR.NODE_ELEMENT )
1101 node = range.startContainer;
1102 else
1103 {
1104 var child = node.getFirst();
1105 while ( child && child.type == CKEDITOR.NODE_ELEMENT )
1106 {
1107 node = child;
1108 child = child.getFirst();
1109 }
1110 }
1111 }
1112 else
1113 {
1114 node = range.startContainer;
1115 if ( node.type != CKEDITOR.NODE_ELEMENT )
1116 node = node.getParent();
1117 }
1118
1119 node = node.$;
1120 }
1121 }
1122
1123 return cache.startElement = ( node ? new CKEDITOR.dom.element( node ) : null );
1124 },
1125
1126 /**
1127 * Gets the currently selected element.
1128 * @returns {CKEDITOR.dom.element} The selected element. Null if no
1129 * selection is available or the selection type is not
1130 * <code>{@link CKEDITOR.SELECTION_ELEMENT}</code>.
1131 * @example
1132 * var element = editor.getSelection().<strong>getSelectedElement()</strong>;
1133 * alert( element.getName() );
1134 */
1135 getSelectedElement : function()
1136 {
1137 var cache = this._.cache;
1138 if ( cache.selectedElement !== undefined )
1139 return cache.selectedElement;
1140
1141 var self = this;
1142
1143 var node = CKEDITOR.tools.tryThese(
1144 // Is it native IE control type selection?
1145 function()
1146 {
1147 return self.getNative().createRange().item( 0 );
1148 },
1149 // If a table or list is fully selected.
1150 function()
1151 {
1152 var root,
1153 retval,
1154 range = self.getRanges()[ 0 ],
1155 ancestor = range.getCommonAncestor( 1, 1 ),
1156 tags = { table:1,ul:1,ol:1,dl:1 };
1157
1158 for ( var t in tags )
1159 {
1160 if ( root = ancestor.getAscendant( t, 1 ) )
1161 break;
1162 }
1163
1164 if ( root )
1165 {
1166 // Enlarging the start boundary.
1167 var testRange = new CKEDITOR.dom.range( this.document );
1168 testRange.setStartAt( root, CKEDITOR.POSITION_AFTER_START );
1169 testRange.setEnd( range.startContainer, range.startOffset );
1170
1171 var enlargeables = CKEDITOR.tools.extend( tags, CKEDITOR.dtd.$listItem, CKEDITOR.dtd.$tableContent ),
1172 walker = new CKEDITOR.dom.walker( testRange ),
1173 // Check the range is at the inner boundary of the structural element.
1174 guard = function( walker, isEnd )
1175 {
1176 return function( node, isWalkOut )
1177 {
1178 if ( node.type == CKEDITOR.NODE_TEXT && ( !CKEDITOR.tools.trim( node.getText() ) || node.getParent().data( 'cke-bookmark' ) ) )
1179 return true;
1180
1181 var tag;
1182 if ( node.type == CKEDITOR.NODE_ELEMENT )
1183 {
1184 tag = node.getName();
1185
1186 // Bypass bogus br at the end of block.
1187 if ( tag == 'br' && isEnd && node.equals( node.getParent().getBogus() ) )
1188 return true;
1189
1190 if ( isWalkOut && tag in enlargeables || tag in CKEDITOR.dtd.$removeEmpty )
1191 return true;
1192 }
1193
1194 walker.halted = 1;
1195 return false;
1196 };
1197 };
1198
1199 walker.guard = guard( walker );
1200
1201 if ( walker.checkBackward() && !walker.halted )
1202 {
1203 walker = new CKEDITOR.dom.walker( testRange );
1204 testRange.setStart( range.endContainer, range.endOffset );
1205 testRange.setEndAt( root, CKEDITOR.POSITION_BEFORE_END );
1206 walker.guard = guard( walker, 1 );
1207 if ( walker.checkForward() && !walker.halted )
1208 retval = root.$;
1209 }
1210 }
1211
1212 if ( !retval )
1213 throw 0;
1214
1215 return retval;
1216 },
1217 // Figure it out by checking if there's a single enclosed
1218 // node of the range.
1219 function()
1220 {
1221 var range = self.getRanges()[ 0 ],
1222 enclosed,
1223 selected;
1224
1225 // Check first any enclosed element, e.g. <ul>[<li><a href="#">item</a></li>]</ul>
1226 for ( var i = 2; i && !( ( enclosed = range.getEnclosedNode() )
1227 && ( enclosed.type == CKEDITOR.NODE_ELEMENT )
1228 && styleObjectElements[ enclosed.getName() ]
1229 && ( selected = enclosed ) ); i-- )
1230 {
1231 // Then check any deep wrapped element, e.g. [<b><i><img /></i></b>]
1232 range.shrink( CKEDITOR.SHRINK_ELEMENT );
1233 }
1234
1235 return selected.$;
1236 });
1237
1238 return cache.selectedElement = ( node ? new CKEDITOR.dom.element( node ) : null );
1239 },
1240
1241 /**
1242 * Retrieves the text contained within the range. An empty string is returned for non-text selection.
1243 * @returns {String} A string of text within the current selection.
1244 * @since 3.6.1
1245 * @example
1246 * var text = editor.getSelection().<strong>getSelectedText()</strong>;
1247 * alert( text );
1248 */
1249 getSelectedText : function()
1250 {
1251 var cache = this._.cache;
1252 if ( cache.selectedText !== undefined )
1253 return cache.selectedText;
1254
1255 var text = '',
1256 nativeSel = this.getNative();
1257 if ( this.getType() == CKEDITOR.SELECTION_TEXT )
1258 text = CKEDITOR.env.ie ? nativeSel.createRange().text : nativeSel.toString();
1259
1260 return ( cache.selectedText = text );
1261 },
1262
1263 /**
1264 * Locks the selection made in the editor in order to make it possible to
1265 * manipulate it without browser interference. A locked selection is
1266 * cached and remains unchanged until it is released with the <code>#unlock</code>
1267 * method.
1268 * @example
1269 * editor.getSelection().<strong>lock()</strong>;
1270 */
1271 lock : function()
1272 {
1273 // Call all cacheable function.
1274 this.getRanges();
1275 this.getStartElement();
1276 this.getSelectedElement();
1277 this.getSelectedText();
1278
1279 // The native selection is not available when locked.
1280 this._.cache.nativeSel = {};
1281
1282 this.isLocked = 1;
1283
1284 // Save this selection inside the DOM document.
1285 this.document.setCustomData( 'cke_locked_selection', this );
1286 },
1287
1288 /**
1289 * Unlocks the selection made in the editor and locked with the <code>#lock</code> method.
1290 * An unlocked selection is no longer cached and can be changed.
1291 * @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.
1292 * @example
1293 * editor.getSelection().<strong>unlock()</strong>;
1294 */
1295 unlock : function( restore )
1296 {
1297 var doc = this.document,
1298 lockedSelection = doc.getCustomData( 'cke_locked_selection' );
1299
1300 if ( lockedSelection )
1301 {
1302 doc.setCustomData( 'cke_locked_selection', null );
1303
1304 if ( restore )
1305 {
1306 var selectedElement = lockedSelection.getSelectedElement(),
1307 ranges = !selectedElement && lockedSelection.getRanges();
1308
1309 this.isLocked = 0;
1310 this.reset();
1311
1312 doc.getBody().focus();
1313
1314 if ( selectedElement )
1315 this.selectElement( selectedElement );
1316 else
1317 this.selectRanges( ranges );
1318 }
1319 }
1320
1321 if ( !lockedSelection || !restore )
1322 {
1323 this.isLocked = 0;
1324 this.reset();
1325 }
1326 },
1327
1328 /**
1329 * Clears the selection cache.
1330 * @example
1331 * editor.getSelection().<strong>reset()</strong>;
1332 */
1333 reset : function()
1334 {
1335 this._.cache = {};
1336 },
1337
1338 /**
1339 * Makes the current selection of type <code>{@link CKEDITOR.SELECTION_ELEMENT}</code> by enclosing the specified element.
1340 * @param {CKEDITOR.dom.element} element The element to enclose in the selection.
1341 * @example
1342 * var element = editor.document.getById( 'sampleElement' );
1343 * editor.getSelection.<strong>selectElement( element )</strong>;
1344 */
1345 selectElement : function( element )
1346 {
1347 if ( this.isLocked )
1348 {
1349 var range = new CKEDITOR.dom.range( this.document );
1350 range.setStartBefore( element );
1351 range.setEndAfter( element );
1352
1353 this._.cache.selectedElement = element;
1354 this._.cache.startElement = element;
1355 this._.cache.ranges = new CKEDITOR.dom.rangeList( range );
1356 this._.cache.type = CKEDITOR.SELECTION_ELEMENT;
1357
1358 return;
1359 }
1360
1361 range = new CKEDITOR.dom.range( element.getDocument() );
1362 range.setStartBefore( element );
1363 range.setEndAfter( element );
1364 range.select();
1365
1366 this.document.fire( 'selectionchange' );
1367 this.reset();
1368
1369 },
1370
1371 /**
1372 * Clears the original selection and adds the specified ranges
1373 * to the document selection.
1374 * @param {Array} ranges An array of <code>{@link CKEDITOR.dom.range}</code> instances representing ranges to be added to the document.
1375 * @example
1376 * var ranges = new CKEDITOR.dom.range( editor.document );
1377 * editor.getSelection().<strong>selectRanges( [ ranges ] )</strong>;
1378 */
1379 selectRanges : function( ranges )
1380 {
1381 if ( this.isLocked )
1382 {
1383 this._.cache.selectedElement = null;
1384 this._.cache.startElement = ranges[ 0 ] && ranges[ 0 ].getTouchedStartNode();
1385 this._.cache.ranges = new CKEDITOR.dom.rangeList( ranges );
1386 this._.cache.type = CKEDITOR.SELECTION_TEXT;
1387
1388 return;
1389 }
1390
1391 if ( CKEDITOR.env.ie )
1392 {
1393 if ( ranges.length > 1 )
1394 {
1395 // IE doesn't accept multiple ranges selection, so we join all into one.
1396 var last = ranges[ ranges.length -1 ] ;
1397 ranges[ 0 ].setEnd( last.endContainer, last.endOffset );
1398 ranges.length = 1;
1399 }
1400
1401 if ( ranges[ 0 ] )
1402 ranges[ 0 ].select();
1403
1404 this.reset();
1405 }
1406 else
1407 {
1408 var sel = this.getNative();
1409
1410 // getNative() returns null if iframe is "display:none" in FF. (#6577)
1411 if ( !sel )
1412 return;
1413
1414 if ( ranges.length )
1415 {
1416 sel.removeAllRanges();
1417 // Remove any existing filling char first.
1418 CKEDITOR.env.webkit && removeFillingChar( this.document );
1419 }
1420
1421 for ( var i = 0 ; i < ranges.length ; i++ )
1422 {
1423 // Joining sequential ranges introduced by
1424 // readonly elements protection.
1425 if ( i < ranges.length -1 )
1426 {
1427 var left = ranges[ i ], right = ranges[ i +1 ],
1428 between = left.clone();
1429 between.setStart( left.endContainer, left.endOffset );
1430 between.setEnd( right.startContainer, right.startOffset );
1431
1432 // Don't confused by Firefox adjancent multi-ranges
1433 // introduced by table cells selection.
1434 if ( !between.collapsed )
1435 {
1436 between.shrink( CKEDITOR.NODE_ELEMENT, true );
1437 var ancestor = between.getCommonAncestor(),
1438 enclosed = between.getEnclosedNode();
1439
1440 // The following cases has to be considered:
1441 // 1. <span contenteditable="false">[placeholder]</span>
1442 // 2. <input contenteditable="false" type="radio"/> (#6621)
1443 if ( ancestor.isReadOnly() || enclosed && enclosed.isReadOnly() )
1444 {
1445 right.setStart( left.startContainer, left.startOffset );
1446 ranges.splice( i--, 1 );
1447 continue;
1448 }
1449 }
1450 }
1451
1452 var range = ranges[ i ];
1453 var nativeRange = this.document.$.createRange();
1454 var startContainer = range.startContainer;
1455
1456 // In FF2, if we have a collapsed range, inside an empty
1457 // element, we must add something to it otherwise the caret
1458 // will not be visible.
1459 // In Opera instead, the selection will be moved out of the
1460 // element. (#4657)
1461 if ( range.collapsed &&
1462 ( CKEDITOR.env.opera || ( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 ) ) &&
1463 startContainer.type == CKEDITOR.NODE_ELEMENT &&
1464 !startContainer.getChildCount() )
1465 {
1466 startContainer.appendText( '' );
1467 }
1468
1469 if ( range.collapsed
1470 && CKEDITOR.env.webkit
1471 && rangeRequiresFix( range ) )
1472 {
1473 // Append a zero-width space so WebKit will not try to
1474 // move the selection by itself (#1272).
1475 var fillingChar = createFillingChar( this.document );
1476 range.insertNode( fillingChar ) ;
1477
1478 var next = fillingChar.getNext();
1479
1480 // If the filling char is followed by a <br>, whithout
1481 // having something before it, it'll not blink.
1482 // Let's remove it in this case.
1483 if ( next && !fillingChar.getPrevious() && next.type == CKEDITOR.NODE_ELEMENT && next.getName() == 'br' )
1484 {
1485 removeFillingChar( this.document );
1486 range.moveToPosition( next, CKEDITOR.POSITION_BEFORE_START );
1487 }
1488 else
1489 range.moveToPosition( fillingChar, CKEDITOR.POSITION_AFTER_END );
1490 }
1491
1492 nativeRange.setStart( range.startContainer.$, range.startOffset );
1493
1494 try
1495 {
1496 nativeRange.setEnd( range.endContainer.$, range.endOffset );
1497 }
1498 catch ( e )
1499 {
1500 // There is a bug in Firefox implementation (it would be too easy
1501 // otherwise). The new start can't be after the end (W3C says it can).
1502 // So, let's create a new range and collapse it to the desired point.
1503 if ( e.toString().indexOf( 'NS_ERROR_ILLEGAL_VALUE' ) >= 0 )
1504 {
1505 range.collapse( 1 );
1506 nativeRange.setEnd( range.endContainer.$, range.endOffset );
1507 }
1508 else
1509 throw e;
1510 }
1511
1512 // Select the range.
1513 sel.addRange( nativeRange );
1514 }
1515
1516 // Don't miss selection change event for non-IEs.
1517 this.document.fire( 'selectionchange' );
1518 this.reset();
1519 }
1520 },
1521
1522 /**
1523 * Creates a bookmark for each range of this selection (from <code>#getRanges</code>)
1524 * by calling the <code>{@link CKEDITOR.dom.range.prototype.createBookmark}</code> method,
1525 * with extra care taken to avoid interference among those ranges. The arguments
1526 * received are the same as with the underlying range method.
1527 * @returns {Array} Array of bookmarks for each range.
1528 * @example
1529 * var bookmarks = editor.getSelection().<strong>createBookmarks()</strong>;
1530 */
1531 createBookmarks : function( serializable )
1532 {
1533 return this.getRanges().createBookmarks( serializable );
1534 },
1535
1536 /**
1537 * Creates a bookmark for each range of this selection (from <code>#getRanges</code>)
1538 * by calling the <code>{@link CKEDITOR.dom.range.prototype.createBookmark2}</code> method,
1539 * with extra care taken to avoid interference among those ranges. The arguments
1540 * received are the same as with the underlying range method.
1541 * @returns {Array} Array of bookmarks for each range.
1542 * @example
1543 * var bookmarks = editor.getSelection().<strong>createBookmarks2()</strong>;
1544 */
1545 createBookmarks2 : function( normalized )
1546 {
1547 return this.getRanges().createBookmarks2( normalized );
1548 },
1549
1550 /**
1551 * Selects the virtual ranges denoted by the bookmarks by calling <code>#selectRanges</code>.
1552 * @param {Array} bookmarks The bookmarks representing ranges to be selected.
1553 * @returns {CKEDITOR.dom.selection} This selection object, after the ranges were selected.
1554 * @example
1555 * var bookmarks = editor.getSelection().createBookmarks();
1556 * editor.getSelection().<strong>selectBookmarks( bookmarks )</strong>;
1557 */
1558 selectBookmarks : function( bookmarks )
1559 {
1560 var ranges = [];
1561 for ( var i = 0 ; i < bookmarks.length ; i++ )
1562 {
1563 var range = new CKEDITOR.dom.range( this.document );
1564 range.moveToBookmark( bookmarks[i] );
1565 ranges.push( range );
1566 }
1567 this.selectRanges( ranges );
1568 return this;
1569 },
1570
1571 /**
1572 * Retrieves the common ancestor node of the first range and the last range.
1573 * @returns {CKEDITOR.dom.element} The common ancestor of the selection.
1574 * @example
1575 * var ancestor = editor.getSelection().<strong>getCommonAncestor()</strong>;
1576 */
1577 getCommonAncestor : function()
1578 {
1579 var ranges = this.getRanges(),
1580 startNode = ranges[ 0 ].startContainer,
1581 endNode = ranges[ ranges.length - 1 ].endContainer;
1582 return startNode.getCommonAncestor( endNode );
1583 },
1584
1585 /**
1586 * Moves the scrollbar to the starting position of the current selection.
1587 * @example
1588 * editor.getSelection().<strong>scrollIntoView()</strong>;
1589 */
1590 scrollIntoView : function()
1591 {
1592 // If we have split the block, adds a temporary span at the
1593 // range position and scroll relatively to it.
1594 var start = this.getStartElement();
1595 start.scrollIntoView();
1596 }
1597 };
1598})();
1599
1600( function()
1601{
1602 var notWhitespaces = CKEDITOR.dom.walker.whitespaces( true ),
1603 fillerTextRegex = /\ufeff|\u00a0/,
1604 nonCells = { table:1,tbody:1,tr:1 };
1605
1606 CKEDITOR.dom.range.prototype.select =
1607 CKEDITOR.env.ie ?
1608 // V2
1609 function( forceExpand )
1610 {
1611 var collapsed = this.collapsed,
1612 isStartMarkerAlone, dummySpan, ieRange;
1613
1614 // Try to make a object selection.
1615 var selected = this.getEnclosedNode();
1616 if ( selected )
1617 {
1618 try
1619 {
1620 ieRange = this.document.$.body.createControlRange();
1621 ieRange.addElement( selected.$ );
1622 ieRange.select();
1623 return;
1624 }
1625 catch( er ) {}
1626 }
1627
1628 // IE doesn't support selecting the entire table row/cell, move the selection into cells, e.g.
1629 // <table><tbody><tr>[<td>cell</b></td>... => <table><tbody><tr><td>[cell</td>...
1630 if ( this.startContainer.type == CKEDITOR.NODE_ELEMENT && this.startContainer.getName() in nonCells
1631 || this.endContainer.type == CKEDITOR.NODE_ELEMENT && this.endContainer.getName() in nonCells )
1632 {
1633 this.shrink( CKEDITOR.NODE_ELEMENT, true );
1634 }
1635
1636 var bookmark = this.createBookmark();
1637
1638 // Create marker tags for the start and end boundaries.
1639 var startNode = bookmark.startNode;
1640
1641 var endNode;
1642 if ( !collapsed )
1643 endNode = bookmark.endNode;
1644
1645 // Create the main range which will be used for the selection.
1646 ieRange = this.document.$.body.createTextRange();
1647
1648 // Position the range at the start boundary.
1649 ieRange.moveToElementText( startNode.$ );
1650 ieRange.moveStart( 'character', 1 );
1651
1652 if ( endNode )
1653 {
1654 // Create a tool range for the end.
1655 var ieRangeEnd = this.document.$.body.createTextRange();
1656
1657 // Position the tool range at the end.
1658 ieRangeEnd.moveToElementText( endNode.$ );
1659
1660 // Move the end boundary of the main range to match the tool range.
1661 ieRange.setEndPoint( 'EndToEnd', ieRangeEnd );
1662 ieRange.moveEnd( 'character', -1 );
1663 }
1664 else
1665 {
1666 // The isStartMarkerAlone logic comes from V2. It guarantees that the lines
1667 // will expand and that the cursor will be blinking on the right place.
1668 // Actually, we are using this flag just to avoid using this hack in all
1669 // situations, but just on those needed.
1670 var next = startNode.getNext( notWhitespaces );
1671 isStartMarkerAlone = ( !( next && next.getText && next.getText().match( fillerTextRegex ) ) // already a filler there?
1672 && ( forceExpand || !startNode.hasPrevious() || ( startNode.getPrevious().is && startNode.getPrevious().is( 'br' ) ) ) );
1673
1674 // Append a temporary <span>&#65279;</span> before the selection.
1675 // This is needed to avoid IE destroying selections inside empty
1676 // inline elements, like <b></b> (#253).
1677 // It is also needed when placing the selection right after an inline
1678 // element to avoid the selection moving inside of it.
1679 dummySpan = this.document.createElement( 'span' );
1680 dummySpan.setHtml( '&#65279;' ); // Zero Width No-Break Space (U+FEFF). See #1359.
1681 dummySpan.insertBefore( startNode );
1682
1683 if ( isStartMarkerAlone )
1684 {
1685 // To expand empty blocks or line spaces after <br>, we need
1686 // instead to have any char, which will be later deleted using the
1687 // selection.
1688 // \ufeff = Zero Width No-Break Space (U+FEFF). (#1359)
1689 this.document.createText( '\ufeff' ).insertBefore( startNode );
1690 }
1691 }
1692
1693 // Remove the markers (reset the position, because of the changes in the DOM tree).
1694 this.setStartBefore( startNode );
1695 startNode.remove();
1696
1697 if ( collapsed )
1698 {
1699 if ( isStartMarkerAlone )
1700 {
1701 // Move the selection start to include the temporary \ufeff.
1702 ieRange.moveStart( 'character', -1 );
1703
1704 ieRange.select();
1705
1706 // Remove our temporary stuff.
1707 this.document.$.selection.clear();
1708 }
1709 else
1710 ieRange.select();
1711
1712 this.moveToPosition( dummySpan, CKEDITOR.POSITION_BEFORE_START );
1713 dummySpan.remove();
1714 }
1715 else
1716 {
1717 this.setEndBefore( endNode );
1718 endNode.remove();
1719 ieRange.select();
1720 }
1721
1722 this.document.fire( 'selectionchange' );
1723 }
1724 :
1725 function()
1726 {
1727 this.document.getSelection().selectRanges( [ this ] );
1728 };
1729} )();
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