projects / ckeditor.git / blob
? search:


5df3d1987083a3e24d7786bc126b122b44da8307
[ckeditor.git] / _source / core / dom / element.js
1 /*
2 Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
3 For licensing, see LICENSE.html or http://ckeditor.com/license
4 */
5
6 /**
7 * @fileOverview Defines the {@link CKEDITOR.dom.element} class, which
8 * represents a DOM element.
9 */
10
11 /**
12 * Represents a DOM element.
13 * @constructor
14 * @augments CKEDITOR.dom.node
15 * @param {Object|String} element A native DOM element or the element name for
16 * new elements.
17 * @param {CKEDITOR.dom.document} [ownerDocument] The document that will contain
18 * the element in case of element creation.
19 * @example
20 * // Create a new <span> element.
21 * var element = new CKEDITOR.dom.element( 'span' );
22 * @example
23 * // Create an element based on a native DOM element.
24 * var element = new CKEDITOR.dom.element( document.getElementById( 'myId' ) );
25 */
26 CKEDITOR.dom.element = function( element, ownerDocument )
27 {
28 if ( typeof element == 'string' )
29 element = ( ownerDocument ? ownerDocument.$ : document ).createElement( element );
30
31 // Call the base constructor (we must not call CKEDITOR.dom.node).
32 CKEDITOR.dom.domObject.call( this, element );
33 };
34
35 // PACKAGER_RENAME( CKEDITOR.dom.element )
36
37 /**
38 * The the {@link CKEDITOR.dom.element} representing and element. If the
39 * element is a native DOM element, it will be transformed into a valid
40 * CKEDITOR.dom.element object.
41 * @returns {CKEDITOR.dom.element} The transformed element.
42 * @example
43 * var element = new CKEDITOR.dom.element( 'span' );
44 * alert( element == <b>CKEDITOR.dom.element.get( element )</b> ); "true"
45 * @example
46 * var element = document.getElementById( 'myElement' );
47 * alert( <b>CKEDITOR.dom.element.get( element )</b>.getName() ); e.g. "p"
48 */
49 CKEDITOR.dom.element.get = function( element )
50 {
51 return element && ( element.$ ? element : new CKEDITOR.dom.element( element ) );
52 };
53
54 CKEDITOR.dom.element.prototype = new CKEDITOR.dom.node();
55
56 /**
57 * Creates an instance of the {@link CKEDITOR.dom.element} class based on the
58 * HTML representation of an element.
59 * @param {String} html The element HTML. It should define only one element in
60 * the "root" level. The "root" element can have child nodes, but not
61 * siblings.
62 * @returns {CKEDITOR.dom.element} The element instance.
63 * @example
64 * var element = <b>CKEDITOR.dom.element.createFromHtml( '&lt;strong class="anyclass"&gt;My element&lt;/strong&gt;' )</b>;
65 * alert( element.getName() ); // "strong"
66 */
67 CKEDITOR.dom.element.createFromHtml = function( html, ownerDocument )
68 {
69 var temp = new CKEDITOR.dom.element( 'div', ownerDocument );
70 temp.setHtml( html );
71
72 // When returning the node, remove it from its parent to detach it.
73 return temp.getFirst().remove();
74 };
75
76 CKEDITOR.dom.element.setMarker = function( database, element, name, value )
77 {
78 var id = element.getCustomData( 'list_marker_id' ) ||
79 ( element.setCustomData( 'list_marker_id', CKEDITOR.tools.getNextNumber() ).getCustomData( 'list_marker_id' ) ),
80 markerNames = element.getCustomData( 'list_marker_names' ) ||
81 ( element.setCustomData( 'list_marker_names', {} ).getCustomData( 'list_marker_names' ) );
82 database[id] = element;
83 markerNames[name] = 1;
84
85 return element.setCustomData( name, value );
86 };
87
88 CKEDITOR.dom.element.clearAllMarkers = function( database )
89 {
90 for ( var i in database )
91 CKEDITOR.dom.element.clearMarkers( database, database[i], 1 );
92 };
93
94 CKEDITOR.dom.element.clearMarkers = function( database, element, removeFromDatabase )
95 {
96 var names = element.getCustomData( 'list_marker_names' ),
97 id = element.getCustomData( 'list_marker_id' );
98 for ( var i in names )
99 element.removeCustomData( i );
100 element.removeCustomData( 'list_marker_names' );
101 if ( removeFromDatabase )
102 {
103 element.removeCustomData( 'list_marker_id' );
104 delete database[id];
105 }
106 };
107
108 CKEDITOR.tools.extend( CKEDITOR.dom.element.prototype,
109 /** @lends CKEDITOR.dom.element.prototype */
110 {
111 /**
112 * The node type. This is a constant value set to
113 * {@link CKEDITOR.NODE_ELEMENT}.
114 * @type Number
115 * @example
116 */
117 type : CKEDITOR.NODE_ELEMENT,
118
119 /**
120 * Adds a CSS class to the element. It appends the class to the
121 * already existing names.
122 * @param {String} className The name of the class to be added.
123 * @example
124 * var element = new CKEDITOR.dom.element( 'div' );
125 * element.addClass( 'classA' ); // &lt;div class="classA"&gt;
126 * element.addClass( 'classB' ); // &lt;div class="classA classB"&gt;
127 * element.addClass( 'classA' ); // &lt;div class="classA classB"&gt;
128 */
129 addClass : function( className )
130 {
131 var c = this.$.className;
132 if ( c )
133 {
134 var regex = new RegExp( '(?:^|\\s)' + className + '(?:\\s|$)', '' );
135 if ( !regex.test( c ) )
136 c += ' ' + className;
137 }
138 this.$.className = c || className;
139 },
140
141 /**
142 * Removes a CSS class name from the elements classes. Other classes
143 * remain untouched.
144 * @param {String} className The name of the class to remove.
145 * @example
146 * var element = new CKEDITOR.dom.element( 'div' );
147 * element.addClass( 'classA' ); // &lt;div class="classA"&gt;
148 * element.addClass( 'classB' ); // &lt;div class="classA classB"&gt;
149 * element.removeClass( 'classA' ); // &lt;div class="classB"&gt;
150 * element.removeClass( 'classB' ); // &lt;div&gt;
151 */
152 removeClass : function( className )
153 {
154 var c = this.getAttribute( 'class' );
155 if ( c )
156 {
157 var regex = new RegExp( '(?:^|\\s+)' + className + '(?=\\s|$)', 'i' );
158 if ( regex.test( c ) )
159 {
160 c = c.replace( regex, '' ).replace( /^\s+/, '' );
161
162 if ( c )
163 this.setAttribute( 'class', c );
164 else
165 this.removeAttribute( 'class' );
166 }
167 }
168 },
169
170 hasClass : function( className )
171 {
172 var regex = new RegExp( '(?:^|\\s+)' + className + '(?=\\s|$)', '' );
173 return regex.test( this.getAttribute('class') );
174 },
175
176 /**
177 * Append a node as a child of this element.
178 * @param {CKEDITOR.dom.node|String} node The node or element name to be
179 * appended.
180 * @param {Boolean} [toStart] Indicates that the element is to be
181 * appended at the start.
182 * @returns {CKEDITOR.dom.node} The appended node.
183 * @example
184 * var p = new CKEDITOR.dom.element( 'p' );
185 *
186 * var strong = new CKEDITOR.dom.element( 'strong' );
187 * <b>p.append( strong );</b>
188 *
189 * var em = <b>p.append( 'em' );</b>
190 *
191 * // result: "&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;"
192 */
193 append : function( node, toStart )
194 {
195 if ( typeof node == 'string' )
196 node = this.getDocument().createElement( node );
197
198 if ( toStart )
199 this.$.insertBefore( node.$, this.$.firstChild );
200 else
201 this.$.appendChild( node.$ );
202
203 return node;
204 },
205
206 appendHtml : function( html )
207 {
208 if ( !this.$.childNodes.length )
209 this.setHtml( html );
210 else
211 {
212 var temp = new CKEDITOR.dom.element( 'div', this.getDocument() );
213 temp.setHtml( html );
214 temp.moveChildren( this );
215 }
216 },
217
218 /**
219 * Append text to this element.
220 * @param {String} text The text to be appended.
221 * @returns {CKEDITOR.dom.node} The appended node.
222 * @example
223 * var p = new CKEDITOR.dom.element( 'p' );
224 * p.appendText( 'This is' );
225 * p.appendText( ' some text' );
226 *
227 * // result: "&lt;p&gt;This is some text&lt;/p&gt;"
228 */
229 appendText : function( text )
230 {
231 if ( this.$.text != undefined )
232 this.$.text += text;
233 else
234 this.append( new CKEDITOR.dom.text( text ) );
235 },
236
237 appendBogus : function()
238 {
239 var lastChild = this.getLast() ;
240
241 // Ignore empty/spaces text.
242 while ( lastChild && lastChild.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.rtrim( lastChild.getText() ) )
243 lastChild = lastChild.getPrevious();
244 if ( !lastChild || !lastChild.is || !lastChild.is( 'br' ) )
245 {
246 var bogus = CKEDITOR.env.opera ?
247 this.getDocument().createText('') :
248 this.getDocument().createElement( 'br' );
249
250 CKEDITOR.env.gecko && bogus.setAttribute( 'type', '_moz' );
251
252 this.append( bogus );
253 }
254 },
255
256 /**
257 * Breaks one of the ancestor element in the element position, moving
258 * this element between the broken parts.
259 * @param {CKEDITOR.dom.element} parent The anscestor element to get broken.
260 * @example
261 * // Before breaking:
262 * // &lt;b&gt;This &lt;i&gt;is some&lt;span /&gt; sample&lt;/i&gt; test text&lt;/b&gt;
263 * // If "element" is &lt;span /&gt; and "parent" is &lt;i&gt;:
264 * // &lt;b&gt;This &lt;i&gt;is some&lt;/i&gt;&lt;span /&gt;&lt;i&gt; sample&lt;/i&gt; test text&lt;/b&gt;
265 * element.breakParent( parent );
266 * @example
267 * // Before breaking:
268 * // &lt;b&gt;This &lt;i&gt;is some&lt;span /&gt; sample&lt;/i&gt; test text&lt;/b&gt;
269 * // If "element" is &lt;span /&gt; and "parent" is &lt;b&gt;:
270 * // &lt;b&gt;This &lt;i&gt;is some&lt;/i&gt;&lt;/b&gt;&lt;span /&gt;&lt;b&gt;&lt;i&gt; sample&lt;/i&gt; test text&lt;/b&gt;
271 * element.breakParent( parent );
272 */
273 breakParent : function( parent )
274 {
275 var range = new CKEDITOR.dom.range( this.getDocument() );
276
277 // We'll be extracting part of this element, so let's use our
278 // range to get the correct piece.
279 range.setStartAfter( this );
280 range.setEndAfter( parent );
281
282 // Extract it.
283 var docFrag = range.extractContents();
284
285 // Move the element outside the broken element.
286 range.insertNode( this.remove() );
287
288 // Re-insert the extracted piece after the element.
289 docFrag.insertAfterNode( this );
290 },
291
292 contains :
293 CKEDITOR.env.ie || CKEDITOR.env.webkit ?
294 function( node )
295 {
296 var $ = this.$;
297
298 return node.type != CKEDITOR.NODE_ELEMENT ?
299 $.contains( node.getParent().$ ) :
300 $ != node.$ && $.contains( node.$ );
301 }
302 :
303 function( node )
304 {
305 return !!( this.$.compareDocumentPosition( node.$ ) & 16 );
306 },
307
308 /**
309 * Moves the selection focus to this element.
310 * @function
311 * @param {Boolean} defer Whether to asynchronously defer the
312 * execution by 100 ms.
313 * @example
314 * var element = CKEDITOR.document.getById( 'myTextarea' );
315 * <b>element.focus()</b>;
316 */
317 focus : ( function()
318 {
319 function exec()
320 {
321 // IE throws error if the element is not visible.
322 try
323 {
324 this.$.focus();
325 }
326 catch (e)
327 {}
328 }
329
330 return function( defer )
331 {
332 if ( defer )
333 CKEDITOR.tools.setTimeout( exec, 100, this );
334 else
335 exec.call( this );
336 };
337 })(),
338
339 /**
340 * Gets the inner HTML of this element.
341 * @returns {String} The inner HTML of this element.
342 * @example
343 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;&lt;b&gt;Example&lt;/b&gt;&lt;/div&gt;' );
344 * alert( <b>p.getHtml()</b> ); // "&lt;b&gt;Example&lt;/b&gt;"
345 */
346 getHtml : function()
347 {
348 var retval = this.$.innerHTML;
349 // Strip <?xml:namespace> tags in IE. (#3341).
350 return CKEDITOR.env.ie ? retval.replace( /<\?[^>]*>/g, '' ) : retval;
351 },
352
353 getOuterHtml : function()
354 {
355 if ( this.$.outerHTML )
356 {
357 // IE includes the <?xml:namespace> tag in the outerHTML of
358 // namespaced element. So, we must strip it here. (#3341)
359 return this.$.outerHTML.replace( /<\?[^>]*>/, '' );
360 }
361
362 var tmpDiv = this.$.ownerDocument.createElement( 'div' );
363 tmpDiv.appendChild( this.$.cloneNode( true ) );
364 return tmpDiv.innerHTML;
365 },
366
367 /**
368 * Sets the inner HTML of this element.
369 * @param {String} html The HTML to be set for this element.
370 * @returns {String} The inserted HTML.
371 * @example
372 * var p = new CKEDITOR.dom.element( 'p' );
373 * <b>p.setHtml( '&lt;b&gt;Inner&lt;/b&gt; HTML' );</b>
374 *
375 * // result: "&lt;p&gt;&lt;b&gt;Inner&lt;/b&gt; HTML&lt;/p&gt;"
376 */
377 setHtml : function( html )
378 {
379 return ( this.$.innerHTML = html );
380 },
381
382 /**
383 * Sets the element contents as plain text.
384 * @param {String} text The text to be set.
385 * @returns {String} The inserted text.
386 * @example
387 * var element = new CKEDITOR.dom.element( 'div' );
388 * element.setText( 'A > B & C < D' );
389 * alert( element.innerHTML ); // "A &amp;gt; B &amp;amp; C &amp;lt; D"
390 */
391 setText : function( text )
392 {
393 CKEDITOR.dom.element.prototype.setText = ( this.$.innerText != undefined ) ?
394 function ( text )
395 {
396 return this.$.innerText = text;
397 } :
398 function ( text )
399 {
400 return this.$.textContent = text;
401 };
402
403 return this.setText( text );
404 },
405
406 /**
407 * Gets the value of an element attribute.
408 * @function
409 * @param {String} name The attribute name.
410 * @returns {String} The attribute value or null if not defined.
411 * @example
412 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;input type="text" /&gt;' );
413 * alert( <b>element.getAttribute( 'type' )</b> ); // "text"
414 */
415 getAttribute : (function()
416 {
417 var standard = function( name )
418 {
419 return this.$.getAttribute( name, 2 );
420 };
421
422 if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
423 {
424 return function( name )
425 {
426 switch ( name )
427 {
428 case 'class':
429 name = 'className';
430 break;
431
432 case 'http-equiv':
433 name = 'httpEquiv';
434 break;
435
436 case 'name':
437 return this.$.name;
438
439 case 'tabindex':
440 var tabIndex = standard.call( this, name );
441
442 // IE returns tabIndex=0 by default for all
443 // elements. For those elements,
444 // getAtrribute( 'tabindex', 2 ) returns 32768
445 // instead. So, we must make this check to give a
446 // uniform result among all browsers.
447 if ( tabIndex !== 0 && this.$.tabIndex === 0 )
448 tabIndex = null;
449
450 return tabIndex;
451 break;
452
453 case 'checked':
454 {
455 var attr = this.$.attributes.getNamedItem( name ),
456 attrValue = attr.specified ? attr.nodeValue // For value given by parser.
457 : this.$.checked; // For value created via DOM interface.
458
459 return attrValue ? 'checked' : null;
460 }
461
462 case 'hspace':
463 case 'value':
464 return this.$[ name ];
465
466 case 'style':
467 // IE does not return inline styles via getAttribute(). See #2947.
468 return this.$.style.cssText;
469 }
470
471 return standard.call( this, name );
472 };
473 }
474 else
475 return standard;
476 })(),
477
478 getChildren : function()
479 {
480 return new CKEDITOR.dom.nodeList( this.$.childNodes );
481 },
482
483 /**
484 * Gets the current computed value of one of the element CSS style
485 * properties.
486 * @function
487 * @param {String} propertyName The style property name.
488 * @returns {String} The property value.
489 * @example
490 * var element = new CKEDITOR.dom.element( 'span' );
491 * alert( <b>element.getComputedStyle( 'display' )</b> ); // "inline"
492 */
493 getComputedStyle :
494 CKEDITOR.env.ie ?
495 function( propertyName )
496 {
497 return this.$.currentStyle[ CKEDITOR.tools.cssStyleToDomStyle( propertyName ) ];
498 }
499 :
500 function( propertyName )
501 {
502 return this.getWindow().$.getComputedStyle( this.$, '' ).getPropertyValue( propertyName );
503 },
504
505 /**
506 * Gets the DTD entries for this element.
507 * @returns {Object} An object containing the list of elements accepted
508 * by this element.
509 */
510 getDtd : function()
511 {
512 var dtd = CKEDITOR.dtd[ this.getName() ];
513
514 this.getDtd = function()
515 {
516 return dtd;
517 };
518
519 return dtd;
520 },
521
522 getElementsByTag : CKEDITOR.dom.document.prototype.getElementsByTag,
523
524 /**
525 * Gets the computed tabindex for this element.
526 * @function
527 * @returns {Number} The tabindex value.
528 * @example
529 * var element = CKEDITOR.document.getById( 'myDiv' );
530 * alert( <b>element.getTabIndex()</b> ); // e.g. "-1"
531 */
532 getTabIndex :
533 CKEDITOR.env.ie ?
534 function()
535 {
536 var tabIndex = this.$.tabIndex;
537
538 // IE returns tabIndex=0 by default for all elements. In
539 // those cases we must check that the element really has
540 // the tabindex attribute set to zero, or it is one of
541 // those element that should have zero by default.
542 if ( tabIndex === 0 && !CKEDITOR.dtd.$tabIndex[ this.getName() ] && parseInt( this.getAttribute( 'tabindex' ), 10 ) !== 0 )
543 tabIndex = -1;
544
545 return tabIndex;
546 }
547 : CKEDITOR.env.webkit ?
548 function()
549 {
550 var tabIndex = this.$.tabIndex;
551
552 // Safari returns "undefined" for elements that should not
553 // have tabindex (like a div). So, we must try to get it
554 // from the attribute.
555 // https://bugs.webkit.org/show_bug.cgi?id=20596
556 if ( tabIndex == undefined )
557 {
558 tabIndex = parseInt( this.getAttribute( 'tabindex' ), 10 );
559
560 // If the element don't have the tabindex attribute,
561 // then we should return -1.
562 if ( isNaN( tabIndex ) )
563 tabIndex = -1;
564 }
565
566 return tabIndex;
567 }
568 :
569 function()
570 {
571 return this.$.tabIndex;
572 },
573
574 /**
575 * Gets the text value of this element.
576 *
577 * Only in IE (which uses innerText), &lt;br&gt; will cause linebreaks,
578 * and sucessive whitespaces (including line breaks) will be reduced to
579 * a single space. This behavior is ok for us, for now. It may change
580 * in the future.
581 * @returns {String} The text value.
582 * @example
583 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;Same &lt;i&gt;text&lt;/i&gt;.&lt;/div&gt;' );
584 * alert( <b>element.getText()</b> ); // "Sample text."
585 */
586 getText : function()
587 {
588 return this.$.textContent || this.$.innerText || '';
589 },
590
591 /**
592 * Gets the window object that contains this element.
593 * @returns {CKEDITOR.dom.window} The window object.
594 * @example
595 */
596 getWindow : function()
597 {
598 return this.getDocument().getWindow();
599 },
600
601 /**
602 * Gets the value of the "id" attribute of this element.
603 * @returns {String} The element id, or null if not available.
604 * @example
605 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;p id="myId"&gt;&lt;/p&gt;' );
606 * alert( <b>element.getId()</b> ); // "myId"
607 */
608 getId : function()
609 {
610 return this.$.id || null;
611 },
612
613 /**
614 * Gets the value of the "name" attribute of this element.
615 * @returns {String} The element name, or null if not available.
616 * @example
617 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;input name="myName"&gt;&lt;/input&gt;' );
618 * alert( <b>element.getNameAtt()</b> ); // "myName"
619 */
620 getNameAtt : function()
621 {
622 return this.$.name || null;
623 },
624
625 /**
626 * Gets the element name (tag name). The returned name is guaranteed to
627 * be always full lowercased.
628 * @returns {String} The element name.
629 * @example
630 * var element = new CKEDITOR.dom.element( 'span' );
631 * alert( <b>element.getName()</b> ); // "span"
632 */
633 getName : function()
634 {
635 // Cache the lowercased name inside a closure.
636 var nodeName = this.$.nodeName.toLowerCase();
637
638 if ( CKEDITOR.env.ie && ! ( document.documentMode > 8 ) )
639 {
640 var scopeName = this.$.scopeName;
641 if ( scopeName != 'HTML' )
642 nodeName = scopeName.toLowerCase() + ':' + nodeName;
643 }
644
645 return (
646 this.getName = function()
647 {
648 return nodeName;
649 })();
650 },
651
652 /**
653 * Gets the value set to this element. This value is usually available
654 * for form field elements.
655 * @returns {String} The element value.
656 */
657 getValue : function()
658 {
659 return this.$.value;
660 },
661
662 /**
663 * Gets the first child node of this element.
664 * @param {Function} evaluator Filtering the result node.
665 * @returns {CKEDITOR.dom.node} The first child node or null if not
666 * available.
667 * @example
668 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;&lt;b&gt;Example&lt;/b&gt;&lt;/div&gt;' );
669 * var first = <b>element.getFirst()</b>;
670 * alert( first.getName() ); // "b"
671 */
672 getFirst : function( evaluator )
673 {
674 var first = this.$.firstChild,
675 retval = first && new CKEDITOR.dom.node( first );
676 if ( retval && evaluator && !evaluator( retval ) )
677 retval = retval.getNext( evaluator );
678
679 return retval;
680 },
681
682 /**
683 * @param {Function} evaluator Filtering the result node.
684 */
685 getLast : function( evaluator )
686 {
687 var last = this.$.lastChild,
688 retval = last && new CKEDITOR.dom.node( last );
689 if ( retval && evaluator && !evaluator( retval ) )
690 retval = retval.getPrevious( evaluator );
691
692 return retval;
693 },
694
695 getStyle : function( name )
696 {
697 return this.$.style[ CKEDITOR.tools.cssStyleToDomStyle( name ) ];
698 },
699
700 /**
701 * Checks if the element name matches one or more names.
702 * @param {String} name[,name[,...]] One or more names to be checked.
703 * @returns {Boolean} true if the element name matches any of the names.
704 * @example
705 * var element = new CKEDITOR.element( 'span' );
706 * alert( <b>element.is( 'span' )</b> ); "true"
707 * alert( <b>element.is( 'p', 'span' )</b> ); "true"
708 * alert( <b>element.is( 'p' )</b> ); "false"
709 * alert( <b>element.is( 'p', 'div' )</b> ); "false"
710 */
711 is : function()
712 {
713 var name = this.getName();
714 for ( var i = 0 ; i < arguments.length ; i++ )
715 {
716 if ( arguments[ i ] == name )
717 return true;
718 }
719 return false;
720 },
721
722 isEditable : function()
723 {
724 if ( this.isReadOnly() )
725 return false;
726
727 // Get the element name.
728 var name = this.getName();
729
730 // Get the element DTD (defaults to span for unknown elements).
731 var dtd = !CKEDITOR.dtd.$nonEditable[ name ]
732 && ( CKEDITOR.dtd[ name ] || CKEDITOR.dtd.span );
733
734 // In the DTD # == text node.
735 return ( dtd && dtd['#'] );
736 },
737
738 isIdentical : function( otherElement )
739 {
740 if ( this.getName() != otherElement.getName() )
741 return false;
742
743 var thisAttribs = this.$.attributes,
744 otherAttribs = otherElement.$.attributes;
745
746 var thisLength = thisAttribs.length,
747 otherLength = otherAttribs.length;
748
749 for ( var i = 0 ; i < thisLength ; i++ )
750 {
751 var attribute = thisAttribs[ i ];
752
753 if ( attribute.nodeName == '_moz_dirty' )
754 continue;
755
756 if ( ( !CKEDITOR.env.ie || ( attribute.specified && attribute.nodeName != 'data-cke-expando' ) ) && attribute.nodeValue != otherElement.getAttribute( attribute.nodeName ) )
757 return false;
758 }
759
760 // For IE, we have to for both elements, because it's difficult to
761 // know how the atttibutes collection is organized in its DOM.
762 if ( CKEDITOR.env.ie )
763 {
764 for ( i = 0 ; i < otherLength ; i++ )
765 {
766 attribute = otherAttribs[ i ];
767 if ( attribute.specified && attribute.nodeName != 'data-cke-expando'
768 && attribute.nodeValue != this.getAttribute( attribute.nodeName ) )
769 return false;
770 }
771 }
772
773 return true;
774 },
775
776 /**
777 * Checks if this element is visible. May not work if the element is
778 * child of an element with visibility set to "hidden", but works well
779 * on the great majority of cases.
780 * @return {Boolean} True if the element is visible.
781 */
782 isVisible : function()
783 {
784 var isVisible = !!this.$.offsetHeight && this.getComputedStyle( 'visibility' ) != 'hidden',
785 elementWindow,
786 elementWindowFrame;
787
788 // Webkit and Opera report non-zero offsetHeight despite that
789 // element is inside an invisible iframe. (#4542)
790 if ( isVisible && ( CKEDITOR.env.webkit || CKEDITOR.env.opera ) )
791 {
792 elementWindow = this.getWindow();
793
794 if ( !elementWindow.equals( CKEDITOR.document.getWindow() )
795 && ( elementWindowFrame = elementWindow.$.frameElement ) )
796 {
797 isVisible = new CKEDITOR.dom.element( elementWindowFrame ).isVisible();
798 }
799 }
800
801 return isVisible;
802 },
803
804 /**
805 * Whether it's an empty inline elements which has no visual impact when removed.
806 */
807 isEmptyInlineRemoveable : function()
808 {
809 if ( !CKEDITOR.dtd.$removeEmpty[ this.getName() ] )
810 return false;
811
812 var children = this.getChildren();
813 for ( var i = 0, count = children.count(); i < count; i++ )
814 {
815 var child = children.getItem( i );
816
817 if ( child.type == CKEDITOR.NODE_ELEMENT && child.data( 'cke-bookmark' ) )
818 continue;
819
820 if ( child.type == CKEDITOR.NODE_ELEMENT && !child.isEmptyInlineRemoveable()
821 || child.type == CKEDITOR.NODE_TEXT && CKEDITOR.tools.trim( child.getText() ) )
822 {
823 return false;
824 }
825 }
826 return true;
827 },
828
829 /**
830 * Checks if the element has any defined attributes.
831 * @function
832 * @returns {Boolean} True if the element has attributes.
833 * @example
834 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div title="Test"&gt;Example&lt;/div&gt;' );
835 * alert( <b>element.hasAttributes()</b> ); // "true"
836 * @example
837 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;Example&lt;/div&gt;' );
838 * alert( <b>element.hasAttributes()</b> ); // "false"
839 */
840 hasAttributes :
841 CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) ?
842 function()
843 {
844 var attributes = this.$.attributes;
845
846 for ( var i = 0 ; i < attributes.length ; i++ )
847 {
848 var attribute = attributes[i];
849
850 switch ( attribute.nodeName )
851 {
852 case 'class' :
853 // IE has a strange bug. If calling removeAttribute('className'),
854 // the attributes collection will still contain the "class"
855 // attribute, which will be marked as "specified", even if the
856 // outerHTML of the element is not displaying the class attribute.
857 // Note : I was not able to reproduce it outside the editor,
858 // but I've faced it while working on the TC of #1391.
859 if ( this.getAttribute( 'class' ) )
860 return true;
861
862 // Attributes to be ignored.
863 case 'data-cke-expando' :
864 continue;
865
866 /*jsl:fallthru*/
867
868 default :
869 if ( attribute.specified )
870 return true;
871 }
872 }
873
874 return false;
875 }
876 :
877 function()
878 {
879 var attrs = this.$.attributes,
880 attrsNum = attrs.length;
881
882 // The _moz_dirty attribute might get into the element after pasting (#5455)
883 var execludeAttrs = { 'data-cke-expando' : 1, _moz_dirty : 1 };
884
885 return attrsNum > 0 &&
886 ( attrsNum > 2 ||
887 !execludeAttrs[ attrs[0].nodeName ] ||
888 ( attrsNum == 2 && !execludeAttrs[ attrs[1].nodeName ] ) );
889 },
890
891 /**
892 * Checks if the specified attribute is defined for this element.
893 * @returns {Boolean} True if the specified attribute is defined.
894 * @param {String} name The attribute name.
895 * @example
896 */
897 hasAttribute : (function()
898 {
899 function standard( name )
900 {
901 var $attr = this.$.attributes.getNamedItem( name );
902 return !!( $attr && $attr.specified );
903 }
904
905 return ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 ) ?
906 function( name )
907 {
908 // On IE < 8 the name attribute cannot be retrieved
909 // right after the element creation and setting the
910 // name with setAttribute.
911 if ( name == 'name' )
912 return !!this.$.name;
913
914 return standard.call( this, name );
915 }
916 :
917 standard;
918 })(),
919
920 /**
921 * Hides this element (display:none).
922 * @example
923 * var element = CKEDITOR.dom.element.getById( 'myElement' );
924 * <b>element.hide()</b>;
925 */
926 hide : function()
927 {
928 this.setStyle( 'display', 'none' );
929 },
930
931 moveChildren : function( target, toStart )
932 {
933 var $ = this.$;
934 target = target.$;
935
936 if ( $ == target )
937 return;
938
939 var child;
940
941 if ( toStart )
942 {
943 while ( ( child = $.lastChild ) )
944 target.insertBefore( $.removeChild( child ), target.firstChild );
945 }
946 else
947 {
948 while ( ( child = $.firstChild ) )
949 target.appendChild( $.removeChild( child ) );
950 }
951 },
952
953 /**
954 * Merges sibling elements that are identical to this one.<br>
955 * <br>
956 * Identical child elements are also merged. For example:<br>
957 * &lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt;&lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt; =&gt; &lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt;
958 * @function
959 * @param {Boolean} [inlineOnly] Allow only inline elements to be merged. Defaults to "true".
960 */
961 mergeSiblings : ( function()
962 {
963 function mergeElements( element, sibling, isNext )
964 {
965 if ( sibling && sibling.type == CKEDITOR.NODE_ELEMENT )
966 {
967 // Jumping over bookmark nodes and empty inline elements, e.g. <b><i></i></b>,
968 // queuing them to be moved later. (#5567)
969 var pendingNodes = [];
970
971 while ( sibling.data( 'cke-bookmark' )
972 || sibling.isEmptyInlineRemoveable() )
973 {
974 pendingNodes.push( sibling );
975 sibling = isNext ? sibling.getNext() : sibling.getPrevious();
976 if ( !sibling || sibling.type != CKEDITOR.NODE_ELEMENT )
977 return;
978 }
979
980 if ( element.isIdentical( sibling ) )
981 {
982 // Save the last child to be checked too, to merge things like
983 // <b><i></i></b><b><i></i></b> => <b><i></i></b>
984 var innerSibling = isNext ? element.getLast() : element.getFirst();
985
986 // Move pending nodes first into the target element.
987 while( pendingNodes.length )
988 pendingNodes.shift().move( element, !isNext );
989
990 sibling.moveChildren( element, !isNext );
991 sibling.remove();
992
993 // Now check the last inner child (see two comments above).
994 if ( innerSibling && innerSibling.type == CKEDITOR.NODE_ELEMENT )
995 innerSibling.mergeSiblings();
996 }
997 }
998 }
999
1000 return function( inlineOnly )
1001 {
1002 if ( ! ( inlineOnly === false
1003 || CKEDITOR.dtd.$removeEmpty[ this.getName() ]
1004 || this.is( 'a' ) ) ) // Merge empty links and anchors also. (#5567)
1005 {
1006 return;
1007 }
1008
1009 mergeElements( this, this.getNext(), true );
1010 mergeElements( this, this.getPrevious() );
1011 };
1012 } )(),
1013
1014 /**
1015 * Shows this element (display it).
1016 * @example
1017 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1018 * <b>element.show()</b>;
1019 */
1020 show : function()
1021 {
1022 this.setStyles(
1023 {
1024 display : '',
1025 visibility : ''
1026 });
1027 },
1028
1029 /**
1030 * Sets the value of an element attribute.
1031 * @param {String} name The name of the attribute.
1032 * @param {String} value The value to be set to the attribute.
1033 * @function
1034 * @returns {CKEDITOR.dom.element} This element instance.
1035 * @example
1036 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1037 * <b>element.setAttribute( 'class', 'myClass' )</b>;
1038 * <b>element.setAttribute( 'title', 'This is an example' )</b>;
1039 */
1040 setAttribute : (function()
1041 {
1042 var standard = function( name, value )
1043 {
1044 this.$.setAttribute( name, value );
1045 return this;
1046 };
1047
1048 if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
1049 {
1050 return function( name, value )
1051 {
1052 if ( name == 'class' )
1053 this.$.className = value;
1054 else if ( name == 'style' )
1055 this.$.style.cssText = value;
1056 else if ( name == 'tabindex' ) // Case sensitive.
1057 this.$.tabIndex = value;
1058 else if ( name == 'checked' )
1059 this.$.checked = value;
1060 else
1061 standard.apply( this, arguments );
1062 return this;
1063 };
1064 }
1065 else if ( CKEDITOR.env.ie8Compat && CKEDITOR.env.secure )
1066 {
1067 return function( name, value )
1068 {
1069 // IE8 throws error when setting src attribute to non-ssl value. (#7847)
1070 if ( name == 'src' && value.match( /^http:\/\// ) )
1071 try { standard.apply( this, arguments ); } catch( e ){}
1072 else
1073 standard.apply( this, arguments );
1074 return this;
1075 };
1076 }
1077 else
1078 return standard;
1079 })(),
1080
1081 /**
1082 * Sets the value of several element attributes.
1083 * @param {Object} attributesPairs An object containing the names and
1084 * values of the attributes.
1085 * @returns {CKEDITOR.dom.element} This element instance.
1086 * @example
1087 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1088 * <b>element.setAttributes({
1089 * 'class' : 'myClass',
1090 * 'title' : 'This is an example' })</b>;
1091 */
1092 setAttributes : function( attributesPairs )
1093 {
1094 for ( var name in attributesPairs )
1095 this.setAttribute( name, attributesPairs[ name ] );
1096 return this;
1097 },
1098
1099 /**
1100 * Sets the element value. This function is usually used with form
1101 * field element.
1102 * @param {String} value The element value.
1103 * @returns {CKEDITOR.dom.element} This element instance.
1104 */
1105 setValue : function( value )
1106 {
1107 this.$.value = value;
1108 return this;
1109 },
1110
1111 /**
1112 * Removes an attribute from the element.
1113 * @param {String} name The attribute name.
1114 * @function
1115 * @example
1116 * var element = CKEDITOR.dom.element.createFromHtml( '<div class="classA"></div>' );
1117 * element.removeAttribute( 'class' );
1118 */
1119 removeAttribute : (function()
1120 {
1121 var standard = function( name )
1122 {
1123 this.$.removeAttribute( name );
1124 };
1125
1126 if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
1127 {
1128 return function( name )
1129 {
1130 if ( name == 'class' )
1131 name = 'className';
1132 else if ( name == 'tabindex' )
1133 name = 'tabIndex';
1134 standard.call( this, name );
1135 };
1136 }
1137 else
1138 return standard;
1139 })(),
1140
1141 removeAttributes : function ( attributes )
1142 {
1143 if ( CKEDITOR.tools.isArray( attributes ) )
1144 {
1145 for ( var i = 0 ; i < attributes.length ; i++ )
1146 this.removeAttribute( attributes[ i ] );
1147 }
1148 else
1149 {
1150 for ( var attr in attributes )
1151 attributes.hasOwnProperty( attr ) && this.removeAttribute( attr );
1152 }
1153 },
1154
1155 /**
1156 * Removes a style from the element.
1157 * @param {String} name The style name.
1158 * @function
1159 * @example
1160 * var element = CKEDITOR.dom.element.createFromHtml( '<div style="display:none"></div>' );
1161 * element.removeStyle( 'display' );
1162 */
1163 removeStyle : function( name )
1164 {
1165 this.setStyle( name, '' );
1166 if ( this.$.style.removeAttribute )
1167 this.$.style.removeAttribute( CKEDITOR.tools.cssStyleToDomStyle( name ) );
1168
1169 if ( !this.$.style.cssText )
1170 this.removeAttribute( 'style' );
1171 },
1172
1173 /**
1174 * Sets the value of an element style.
1175 * @param {String} name The name of the style. The CSS naming notation
1176 * must be used (e.g. "background-color").
1177 * @param {String} value The value to be set to the style.
1178 * @returns {CKEDITOR.dom.element} This element instance.
1179 * @example
1180 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1181 * <b>element.setStyle( 'background-color', '#ff0000' )</b>;
1182 * <b>element.setStyle( 'margin-top', '10px' )</b>;
1183 * <b>element.setStyle( 'float', 'right' )</b>;
1184 */
1185 setStyle : function( name, value )
1186 {
1187 this.$.style[ CKEDITOR.tools.cssStyleToDomStyle( name ) ] = value;
1188 return this;
1189 },
1190
1191 /**
1192 * Sets the value of several element styles.
1193 * @param {Object} stylesPairs An object containing the names and
1194 * values of the styles.
1195 * @returns {CKEDITOR.dom.element} This element instance.
1196 * @example
1197 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1198 * <b>element.setStyles({
1199 * 'position' : 'absolute',
1200 * 'float' : 'right' })</b>;
1201 */
1202 setStyles : function( stylesPairs )
1203 {
1204 for ( var name in stylesPairs )
1205 this.setStyle( name, stylesPairs[ name ] );
1206 return this;
1207 },
1208
1209 /**
1210 * Sets the opacity of an element.
1211 * @param {Number} opacity A number within the range [0.0, 1.0].
1212 * @example
1213 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1214 * <b>element.setOpacity( 0.75 )</b>;
1215 */
1216 setOpacity : function( opacity )
1217 {
1218 if ( CKEDITOR.env.ie )
1219 {
1220 opacity = Math.round( opacity * 100 );
1221 this.setStyle( 'filter', opacity >= 100 ? '' : 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')' );
1222 }
1223 else
1224 this.setStyle( 'opacity', opacity );
1225 },
1226
1227 /**
1228 * Makes the element and its children unselectable.
1229 * @function
1230 * @example
1231 * var element = CKEDITOR.dom.element.getById( 'myElement' );
1232 * element.unselectable();
1233 */
1234 unselectable :
1235 CKEDITOR.env.gecko ?
1236 function()
1237 {
1238 this.$.style.MozUserSelect = 'none';
1239 this.on( 'dragstart', function( evt ) { evt.data.preventDefault(); } );
1240 }
1241 : CKEDITOR.env.webkit ?
1242 function()
1243 {
1244 this.$.style.KhtmlUserSelect = 'none';
1245 this.on( 'dragstart', function( evt ) { evt.data.preventDefault(); } );
1246 }
1247 :
1248 function()
1249 {
1250 if ( CKEDITOR.env.ie || CKEDITOR.env.opera )
1251 {
1252 var element = this.$,
1253 e,
1254 i = 0;
1255
1256 element.unselectable = 'on';
1257
1258 while ( ( e = element.all[ i++ ] ) )
1259 {
1260 switch ( e.tagName.toLowerCase() )
1261 {
1262 case 'iframe' :
1263 case 'textarea' :
1264 case 'input' :
1265 case 'select' :
1266 /* Ignore the above tags */
1267 break;
1268 default :
1269 e.unselectable = 'on';
1270 }
1271 }
1272 }
1273 },
1274
1275 getPositionedAncestor : function()
1276 {
1277 var current = this;
1278 while ( current.getName() != 'html' )
1279 {
1280 if ( current.getComputedStyle( 'position' ) != 'static' )
1281 return current;
1282
1283 current = current.getParent();
1284 }
1285 return null;
1286 },
1287
1288 getDocumentPosition : function( refDocument )
1289 {
1290 var x = 0, y = 0,
1291 body = this.getDocument().getBody(),
1292 quirks = this.getDocument().$.compatMode == 'BackCompat';
1293
1294 var doc = this.getDocument();
1295
1296 if ( document.documentElement[ "getBoundingClientRect" ] )
1297 {
1298 var box = this.$.getBoundingClientRect(),
1299 $doc = doc.$,
1300 $docElem = $doc.documentElement;
1301
1302 var clientTop = $docElem.clientTop || body.$.clientTop || 0,
1303 clientLeft = $docElem.clientLeft || body.$.clientLeft || 0,
1304 needAdjustScrollAndBorders = true;
1305
1306 /*
1307 * #3804: getBoundingClientRect() works differently on IE and non-IE
1308 * browsers, regarding scroll positions.
1309 *
1310 * On IE, the top position of the <html> element is always 0, no matter
1311 * how much you scrolled down.
1312 *
1313 * On other browsers, the top position of the <html> element is negative
1314 * scrollTop.
1315 */
1316 if ( CKEDITOR.env.ie )
1317 {
1318 var inDocElem = doc.getDocumentElement().contains( this ),
1319 inBody = doc.getBody().contains( this );
1320
1321 needAdjustScrollAndBorders = ( quirks && inBody ) || ( !quirks && inDocElem );
1322 }
1323
1324 if ( needAdjustScrollAndBorders )
1325 {
1326 x = box.left + ( !quirks && $docElem.scrollLeft || body.$.scrollLeft );
1327 x -= clientLeft;
1328 y = box.top + ( !quirks && $docElem.scrollTop || body.$.scrollTop );
1329 y -= clientTop;
1330 }
1331 }
1332 else
1333 {
1334 var current = this, previous = null, offsetParent;
1335 while ( current && !( current.getName() == 'body' || current.getName() == 'html' ) )
1336 {
1337 x += current.$.offsetLeft - current.$.scrollLeft;
1338 y += current.$.offsetTop - current.$.scrollTop;
1339
1340 // Opera includes clientTop|Left into offsetTop|Left.
1341 if ( !current.equals( this ) )
1342 {
1343 x += ( current.$.clientLeft || 0 );
1344 y += ( current.$.clientTop || 0 );
1345 }
1346
1347 var scrollElement = previous;
1348 while ( scrollElement && !scrollElement.equals( current ) )
1349 {
1350 x -= scrollElement.$.scrollLeft;
1351 y -= scrollElement.$.scrollTop;
1352 scrollElement = scrollElement.getParent();
1353 }
1354
1355 previous = current;
1356 current = ( offsetParent = current.$.offsetParent ) ?
1357 new CKEDITOR.dom.element( offsetParent ) : null;
1358 }
1359 }
1360
1361 if ( refDocument )
1362 {
1363 var currentWindow = this.getWindow(),
1364 refWindow = refDocument.getWindow();
1365
1366 if ( !currentWindow.equals( refWindow ) && currentWindow.$.frameElement )
1367 {
1368 var iframePosition = ( new CKEDITOR.dom.element( currentWindow.$.frameElement ) ).getDocumentPosition( refDocument );
1369
1370 x += iframePosition.x;
1371 y += iframePosition.y;
1372 }
1373 }
1374
1375 if ( !document.documentElement[ "getBoundingClientRect" ] )
1376 {
1377 // In Firefox, we'll endup one pixel before the element positions,
1378 // so we must add it here.
1379 if ( CKEDITOR.env.gecko && !quirks )
1380 {
1381 x += this.$.clientLeft ? 1 : 0;
1382 y += this.$.clientTop ? 1 : 0;
1383 }
1384 }
1385
1386 return { x : x, y : y };
1387 },
1388
1389 scrollIntoView : function( alignTop )
1390 {
1391 // Get the element window.
1392 var win = this.getWindow(),
1393 winHeight = win.getViewPaneSize().height;
1394
1395 // Starts from the offset that will be scrolled with the negative value of
1396 // the visible window height.
1397 var offset = winHeight * -1;
1398
1399 // Append the view pane's height if align to top.
1400 // Append element height if we are aligning to the bottom.
1401 if ( alignTop )
1402 offset += winHeight;
1403 else
1404 {
1405 offset += this.$.offsetHeight || 0;
1406
1407 // Consider the margin in the scroll, which is ok for our current needs, but
1408 // needs investigation if we will be using this function in other places.
1409 offset += parseInt( this.getComputedStyle( 'marginBottom' ) || 0, 10 ) || 0;
1410 }
1411
1412 // Append the offsets for the entire element hierarchy.
1413 var elementPosition = this.getDocumentPosition();
1414 offset += elementPosition.y;
1415
1416 // offset value might be out of range(nagative), fix it(#3692).
1417 offset = offset < 0 ? 0 : offset;
1418
1419 // Scroll the window to the desired position, if not already visible(#3795).
1420 var currentScroll = win.getScrollPosition().y;
1421 if ( offset > currentScroll || offset < currentScroll - winHeight )
1422 win.$.scrollTo( 0, offset );
1423 },
1424
1425 setState : function( state )
1426 {
1427 switch ( state )
1428 {
1429 case CKEDITOR.TRISTATE_ON :
1430 this.addClass( 'cke_on' );
1431 this.removeClass( 'cke_off' );
1432 this.removeClass( 'cke_disabled' );
1433 break;
1434 case CKEDITOR.TRISTATE_DISABLED :
1435 this.addClass( 'cke_disabled' );
1436 this.removeClass( 'cke_off' );
1437 this.removeClass( 'cke_on' );
1438 break;
1439 default :
1440 this.addClass( 'cke_off' );
1441 this.removeClass( 'cke_on' );
1442 this.removeClass( 'cke_disabled' );
1443 break;
1444 }
1445 },
1446
1447 /**
1448 * Returns the inner document of this IFRAME element.
1449 * @returns {CKEDITOR.dom.document} The inner document.
1450 */
1451 getFrameDocument : function()
1452 {
1453 var $ = this.$;
1454
1455 try
1456 {
1457 // In IE, with custom document.domain, it may happen that
1458 // the iframe is not yet available, resulting in "Access
1459 // Denied" for the following property access.
1460 $.contentWindow.document;
1461 }
1462 catch ( e )
1463 {
1464 // Trick to solve this issue, forcing the iframe to get ready
1465 // by simply setting its "src" property.
1466 $.src = $.src;
1467
1468 // In IE6 though, the above is not enough, so we must pause the
1469 // execution for a while, giving it time to think.
1470 if ( CKEDITOR.env.ie && CKEDITOR.env.version < 7 )
1471 {
1472 window.showModalDialog(
1473 'javascript:document.write("' +
1474 '<script>' +
1475 'window.setTimeout(' +
1476 'function(){window.close();}' +
1477 ',50);' +
1478 '</script>")' );
1479 }
1480 }
1481
1482 return $ && new CKEDITOR.dom.document( $.contentWindow.document );
1483 },
1484
1485 /**
1486 * Copy all the attributes from one node to the other, kinda like a clone
1487 * skipAttributes is an object with the attributes that must NOT be copied.
1488 * @param {CKEDITOR.dom.element} dest The destination element.
1489 * @param {Object} skipAttributes A dictionary of attributes to skip.
1490 * @example
1491 */
1492 copyAttributes : function( dest, skipAttributes )
1493 {
1494 var attributes = this.$.attributes;
1495 skipAttributes = skipAttributes || {};
1496
1497 for ( var n = 0 ; n < attributes.length ; n++ )
1498 {
1499 var attribute = attributes[n];
1500
1501 // Lowercase attribute name hard rule is broken for
1502 // some attribute on IE, e.g. CHECKED.
1503 var attrName = attribute.nodeName.toLowerCase(),
1504 attrValue;
1505
1506 // We can set the type only once, so do it with the proper value, not copying it.
1507 if ( attrName in skipAttributes )
1508 continue;
1509
1510 if ( attrName == 'checked' && ( attrValue = this.getAttribute( attrName ) ) )
1511 dest.setAttribute( attrName, attrValue );
1512 // IE BUG: value attribute is never specified even if it exists.
1513 else if ( attribute.specified ||
1514 ( CKEDITOR.env.ie && attribute.nodeValue && attrName == 'value' ) )
1515 {
1516 attrValue = this.getAttribute( attrName );
1517 if ( attrValue === null )
1518 attrValue = attribute.nodeValue;
1519
1520 dest.setAttribute( attrName, attrValue );
1521 }
1522 }
1523
1524 // The style:
1525 if ( this.$.style.cssText !== '' )
1526 dest.$.style.cssText = this.$.style.cssText;
1527 },
1528
1529 /**
1530 * Changes the tag name of the current element.
1531 * @param {String} newTag The new tag for the element.
1532 */
1533 renameNode : function( newTag )
1534 {
1535 // If it's already correct exit here.
1536 if ( this.getName() == newTag )
1537 return;
1538
1539 var doc = this.getDocument();
1540
1541 // Create the new node.
1542 var newNode = new CKEDITOR.dom.element( newTag, doc );
1543
1544 // Copy all attributes.
1545 this.copyAttributes( newNode );
1546
1547 // Move children to the new node.
1548 this.moveChildren( newNode );
1549
1550 // Replace the node.
1551 this.getParent() && this.$.parentNode.replaceChild( newNode.$, this.$ );
1552 newNode.$[ 'data-cke-expando' ] = this.$[ 'data-cke-expando' ];
1553 this.$ = newNode.$;
1554 },
1555
1556 /**
1557 * Gets a DOM tree descendant under the current node.
1558 * @param {Array|Number} indices The child index or array of child indices under the node.
1559 * @returns {CKEDITOR.dom.node} The specified DOM child under the current node. Null if child does not exist.
1560 * @example
1561 * var strong = p.getChild(0);
1562 */
1563 getChild : function( indices )
1564 {
1565 var rawNode = this.$;
1566
1567 if ( !indices.slice )
1568 rawNode = rawNode.childNodes[ indices ];
1569 else
1570 {
1571 while ( indices.length > 0 && rawNode )
1572 rawNode = rawNode.childNodes[ indices.shift() ];
1573 }
1574
1575 return rawNode ? new CKEDITOR.dom.node( rawNode ) : null;
1576 },
1577
1578 getChildCount : function()
1579 {
1580 return this.$.childNodes.length;
1581 },
1582
1583 disableContextMenu : function()
1584 {
1585 this.on( 'contextmenu', function( event )
1586 {
1587 // Cancel the browser context menu.
1588 if ( !event.data.getTarget().hasClass( 'cke_enable_context_menu' ) )
1589 event.data.preventDefault();
1590 } );
1591 },
1592
1593 /**
1594 * Gets element's direction. Supports both CSS 'direction' prop and 'dir' attr.
1595 */
1596 getDirection : function( useComputed )
1597 {
1598 return useComputed ?
1599 this.getComputedStyle( 'direction' )
1600 // Webkit: offline element returns empty direction (#8053).
1601 || this.getDirection()
1602 || this.getDocument().$.dir
1603 || this.getDocument().getBody().getDirection( 1 )
1604 : this.getStyle( 'direction' ) || this.getAttribute( 'dir' );
1605 },
1606
1607 /**
1608 * Gets, sets and removes custom data to be stored as HTML5 data-* attributes.
1609 * @param {String} name The name of the attribute, excluding the 'data-' part.
1610 * @param {String} [value] The value to set. If set to false, the attribute will be removed.
1611 * @example
1612 * element.data( 'extra-info', 'test' ); // appended the attribute data-extra-info="test" to the element
1613 * alert( element.data( 'extra-info' ) ); // "test"
1614 * element.data( 'extra-info', false ); // remove the data-extra-info attribute from the element
1615 */
1616 data : function ( name, value )
1617 {
1618 name = 'data-' + name;
1619 if ( value === undefined )
1620 return this.getAttribute( name );
1621 else if ( value === false )
1622 this.removeAttribute( name );
1623 else
1624 this.setAttribute( name, value );
1625
1626 return null;
1627 }
1628 });
1629
1630 ( function()
1631 {
1632 var sides = {
1633 width : [ "border-left-width", "border-right-width","padding-left", "padding-right" ],
1634 height : [ "border-top-width", "border-bottom-width", "padding-top", "padding-bottom" ]
1635 };
1636
1637 function marginAndPaddingSize( type )
1638 {
1639 var adjustment = 0;
1640 for ( var i = 0, len = sides[ type ].length; i < len; i++ )
1641 adjustment += parseInt( this.getComputedStyle( sides [ type ][ i ] ) || 0, 10 ) || 0;
1642 return adjustment;
1643 }
1644
1645 /**
1646 * Sets the element size considering the box model.
1647 * @name CKEDITOR.dom.element.prototype.setSize
1648 * @function
1649 * @param {String} type The dimension to set. It accepts "width" and "height".
1650 * @param {Number} size The length unit in px.
1651 * @param {Boolean} isBorderBox Apply the size based on the border box model.
1652 */
1653 CKEDITOR.dom.element.prototype.setSize = function( type, size, isBorderBox )
1654 {
1655 if ( typeof size == 'number' )
1656 {
1657 if ( isBorderBox && !( CKEDITOR.env.ie && CKEDITOR.env.quirks ) )
1658 size -= marginAndPaddingSize.call( this, type );
1659
1660 this.setStyle( type, size + 'px' );
1661 }
1662 };
1663
1664 /**
1665 * Gets the element size, possibly considering the box model.
1666 * @name CKEDITOR.dom.element.prototype.getSize
1667 * @function
1668 * @param {String} type The dimension to get. It accepts "width" and "height".
1669 * @param {Boolean} isBorderBox Get the size based on the border box model.
1670 */
1671 CKEDITOR.dom.element.prototype.getSize = function( type, isBorderBox )
1672 {
1673 var size = Math.max( this.$[ 'offset' + CKEDITOR.tools.capitalize( type ) ],
1674 this.$[ 'client' + CKEDITOR.tools.capitalize( type ) ] ) || 0;
1675
1676 if ( isBorderBox )
1677 size -= marginAndPaddingSize.call( this, type );
1678
1679 return size;
1680 };
1681 })();
ckeditor for Plinn