source: trunk/admin/inc/ckeditor/_source/plugins/htmldataprocessor/plugin.js@ 239

Last change on this file since 239 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.
  • Property svn:executable set to *
File size: 18.2 KB
Line 
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 // Regex to scan for   at the end of blocks, which are actually placeholders.
9 // Safari transforms the   to \xa0. (#4172)
10 var tailNbspRegex = /^[\t\r\n ]*(?: |\xa0)$/;
11
12 var protectedSourceMarker = '{cke_protected}';
13
14 // Return the last non-space child node of the block (#4344).
15 function lastNoneSpaceChild( block )
16 {
17 var lastIndex = block.children.length,
18 last = block.children[ lastIndex - 1 ];
19 while ( last && last.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.trim( last.value ) )
20 last = block.children[ --lastIndex ];
21 return last;
22 }
23
24 function trimFillers( block, fromSource )
25 {
26 // If the current node is a block, and if we're converting from source or
27 // we're not in IE then search for and remove any tailing BR node.
28 //
29 // Also, any   at the end of blocks are fillers, remove them as well.
30 // (#2886)
31 var children = block.children, lastChild = lastNoneSpaceChild( block );
32 if ( lastChild )
33 {
34 if ( ( fromSource || !CKEDITOR.env.ie ) && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' )
35 children.pop();
36 if ( lastChild.type == CKEDITOR.NODE_TEXT && tailNbspRegex.test( lastChild.value ) )
37 children.pop();
38 }
39 }
40
41 function blockNeedsExtension( block, fromSource, extendEmptyBlock )
42 {
43 if( !fromSource && ( !extendEmptyBlock ||
44 typeof extendEmptyBlock == 'function' && ( extendEmptyBlock( block ) === false ) ) )
45 return false;
46
47 // 1. For IE version >=8, empty blocks are displayed correctly themself in wysiwiyg;
48 // 2. For the rest, at least table cell and list item need no filler space.
49 // (#6248)
50 if ( fromSource && CKEDITOR.env.ie &&
51 ( document.documentMode > 7
52 || block.name in CKEDITOR.dtd.tr
53 || block.name in CKEDITOR.dtd.$listItem ) )
54 return false;
55
56 var lastChild = lastNoneSpaceChild( block );
57
58 return !lastChild || lastChild &&
59 ( lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br'
60 // Some of the controls in form needs extension too,
61 // to move cursor at the end of the form. (#4791)
62 || block.name == 'form' && lastChild.name == 'input' );
63 }
64
65 function getBlockExtension( isOutput, emptyBlockFiller )
66 {
67 return function( node )
68 {
69 trimFillers( node, !isOutput );
70
71 if ( blockNeedsExtension( node, !isOutput, emptyBlockFiller ) )
72 {
73 if ( isOutput || CKEDITOR.env.ie )
74 node.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
75 else
76 node.add( new CKEDITOR.htmlParser.element( 'br', {} ) );
77 }
78 };
79 }
80
81 var dtd = CKEDITOR.dtd;
82
83 // Define orders of table elements.
84 var tableOrder = [ 'caption', 'colgroup', 'col', 'thead', 'tfoot', 'tbody' ];
85
86 // Find out the list of block-like tags that can contain <br>.
87 var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );
88 for ( var i in blockLikeTags )
89 {
90 if ( ! ( 'br' in dtd[i] ) )
91 delete blockLikeTags[i];
92 }
93 // We just avoid filler in <pre> right now.
94 // TODO: Support filler for <pre>, line break is also occupy line height.
95 delete blockLikeTags.pre;
96 var defaultDataFilterRules =
97 {
98 elements : {},
99 attributeNames :
100 [
101 // Event attributes (onXYZ) must not be directly set. They can become
102 // active in the editing area (IE|WebKit).
103 [ ( /^on/ ), 'data-cke-pa-on' ]
104 ]
105 };
106
107 var defaultDataBlockFilterRules = { elements : {} };
108
109 for ( i in blockLikeTags )
110 defaultDataBlockFilterRules.elements[ i ] = getBlockExtension();
111
112 var defaultHtmlFilterRules =
113 {
114 elementNames :
115 [
116 // Remove the "cke:" namespace prefix.
117 [ ( /^cke:/ ), '' ],
118
119 // Ignore <?xml:namespace> tags.
120 [ ( /^\?xml:namespace$/ ), '' ]
121 ],
122
123 attributeNames :
124 [
125 // Attributes saved for changes and protected attributes.
126 [ ( /^data-cke-(saved|pa)-/ ), '' ],
127
128 // All "data-cke-" attributes are to be ignored.
129 [ ( /^data-cke-.*/ ), '' ],
130
131 [ 'hidefocus', '' ]
132 ],
133
134 elements :
135 {
136 $ : function( element )
137 {
138 var attribs = element.attributes;
139
140 if ( attribs )
141 {
142 // Elements marked as temporary are to be ignored.
143 if ( attribs[ 'data-cke-temp' ] )
144 return false;
145
146 // Remove duplicated attributes - #3789.
147 var attributeNames = [ 'name', 'href', 'src' ],
148 savedAttributeName;
149 for ( var i = 0 ; i < attributeNames.length ; i++ )
150 {
151 savedAttributeName = 'data-cke-saved-' + attributeNames[ i ];
152 savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );
153 }
154 }
155
156 return element;
157 },
158
159 // The contents of table should be in correct order (#4809).
160 table : function( element )
161 {
162 var children = element.children;
163 children.sort( function ( node1, node2 )
164 {
165 return node1.type == CKEDITOR.NODE_ELEMENT && node2.type == node1.type ?
166 CKEDITOR.tools.indexOf( tableOrder, node1.name ) > CKEDITOR.tools.indexOf( tableOrder, node2.name ) ? 1 : -1 : 0;
167 } );
168 },
169
170 embed : function( element )
171 {
172 var parent = element.parent;
173
174 // If the <embed> is child of a <object>, copy the width
175 // and height attributes from it.
176 if ( parent && parent.name == 'object' )
177 {
178 var parentWidth = parent.attributes.width,
179 parentHeight = parent.attributes.height;
180 parentWidth && ( element.attributes.width = parentWidth );
181 parentHeight && ( element.attributes.height = parentHeight );
182 }
183 },
184 // Restore param elements into self-closing.
185 param : function( param )
186 {
187 param.children = [];
188 param.isEmpty = true;
189 return param;
190 },
191
192 // Remove empty link but not empty anchor.(#3829)
193 a : function( element )
194 {
195 if ( !( element.children.length ||
196 element.attributes.name ||
197 element.attributes[ 'data-cke-saved-name' ] ) )
198 {
199 return false;
200 }
201 },
202
203 // Remove dummy span in webkit.
204 span: function( element )
205 {
206 if ( element.attributes[ 'class' ] == 'Apple-style-span' )
207 delete element.name;
208 },
209
210 // Empty <pre> in IE is reported with filler node (&nbsp;).
211 pre : function( element ) { CKEDITOR.env.ie && trimFillers( element ); },
212
213 html : function( element )
214 {
215 delete element.attributes.contenteditable;
216 delete element.attributes[ 'class' ];
217 },
218
219 body : function( element )
220 {
221 delete element.attributes.spellcheck;
222 delete element.attributes.contenteditable;
223 },
224
225 style : function( element )
226 {
227 var child = element.children[ 0 ];
228 child && child.value && ( child.value = CKEDITOR.tools.trim( child.value ));
229
230 if ( !element.attributes.type )
231 element.attributes.type = 'text/css';
232 },
233
234 title : function( element )
235 {
236 var titleText = element.children[ 0 ];
237 titleText && ( titleText.value = element.attributes[ 'data-cke-title' ] || '' );
238 }
239 },
240
241 attributes :
242 {
243 'class' : function( value, element )
244 {
245 // Remove all class names starting with "cke_".
246 return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;
247 }
248 }
249 };
250
251 if ( CKEDITOR.env.ie )
252 {
253 // IE outputs style attribute in capital letters. We should convert
254 // them back to lower case, while not hurting the values (#5930)
255 defaultHtmlFilterRules.attributes.style = function( value, element )
256 {
257 return value.replace( /(^|;)([^\:]+)/g, function( match )
258 {
259 return match.toLowerCase();
260 });
261 };
262 }
263
264 function protectReadOnly( element )
265 {
266 var attrs = element.attributes;
267
268 // We should flag that the element was locked by our code so
269 // it'll be editable by the editor functions (#6046).
270 if ( attrs.contenteditable != "false" )
271 attrs[ 'data-cke-editable' ] = attrs.contenteditable ? 'true' : 1;
272
273 attrs.contenteditable = "false";
274 }
275 function unprotectReadyOnly( element )
276 {
277 var attrs = element.attributes;
278 switch( attrs[ 'data-cke-editable' ] )
279 {
280 case 'true': attrs.contenteditable = 'true'; break;
281 case '1': delete attrs.contenteditable; break;
282 }
283 }
284 // Disable form elements editing mode provided by some browers. (#5746)
285 for ( i in { input : 1, textarea : 1 } )
286 {
287 defaultDataFilterRules.elements[ i ] = protectReadOnly;
288 defaultHtmlFilterRules.elements[ i ] = unprotectReadyOnly;
289 }
290
291 var protectElementRegex = /<(a|area|img|input)\b([^>]*)>/gi,
292 protectAttributeRegex = /\b(on\w+|href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+))/gi;
293
294 var protectElementsRegex = /(?:<style(?=[ >])[^>]*>[\s\S]*<\/style>)|(?:<(:?link|meta|base)[^>]*>)/gi,
295 encodedElementsRegex = /<cke:encoded>([^<]*)<\/cke:encoded>/gi;
296
297 var protectElementNamesRegex = /(<\/?)((?:object|embed|param|html|body|head|title)[^>]*>)/gi,
298 unprotectElementNamesRegex = /(<\/?)cke:((?:html|body|head|title)[^>]*>)/gi;
299
300 var protectSelfClosingRegex = /<cke:(param|embed)([^>]*?)\/?>(?!\s*<\/cke:\1)/gi;
301
302 function protectAttributes( html )
303 {
304 return html.replace( protectElementRegex, function( element, tag, attributes )
305 {
306 return '<' + tag + attributes.replace( protectAttributeRegex, function( fullAttr, attrName )
307 {
308 // Avoid corrupting the inline event attributes (#7243).
309 // We should not rewrite the existed protected attributes, e.g. clipboard content from editor. (#5218)
310 if ( !( /^on/ ).test( attrName ) && attributes.indexOf( 'data-cke-saved-' + attrName ) == -1 )
311 return ' data-cke-saved-' + fullAttr + ' ' + fullAttr;
312
313 return fullAttr;
314 }) + '>';
315 });
316 }
317
318 function protectElements( html )
319 {
320 return html.replace( protectElementsRegex, function( match )
321 {
322 return '<cke:encoded>' + encodeURIComponent( match ) + '</cke:encoded>';
323 });
324 }
325
326 function unprotectElements( html )
327 {
328 return html.replace( encodedElementsRegex, function( match, encoded )
329 {
330 return decodeURIComponent( encoded );
331 });
332 }
333
334 function protectElementsNames( html )
335 {
336 return html.replace( protectElementNamesRegex, '$1cke:$2');
337 }
338
339 function unprotectElementNames( html )
340 {
341 return html.replace( unprotectElementNamesRegex, '$1$2' );
342 }
343
344 function protectSelfClosingElements( html )
345 {
346 return html.replace( protectSelfClosingRegex, '<cke:$1$2></cke:$1>' );
347 }
348
349 function protectPreFormatted( html )
350 {
351 return html.replace( /(<pre\b[^>]*>)(\r\n|\n)/g, '$1$2$2' );
352 }
353
354 function protectRealComments( html )
355 {
356 return html.replace( /<!--(?!{cke_protected})[\s\S]+?-->/g, function( match )
357 {
358 return '<!--' + protectedSourceMarker +
359 '{C}' +
360 encodeURIComponent( match ).replace( /--/g, '%2D%2D' ) +
361 '-->';
362 });
363 }
364
365 function unprotectRealComments( html )
366 {
367 return html.replace( /<!--\{cke_protected\}\{C\}([\s\S]+?)-->/g, function( match, data )
368 {
369 return decodeURIComponent( data );
370 });
371 }
372
373 function unprotectSource( html, editor )
374 {
375 var store = editor._.dataStore;
376
377 return html.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )
378 {
379 return decodeURIComponent( data );
380 }).replace( /\{cke_protected_(\d+)\}/g, function( match, id )
381 {
382 return store && store[ id ] || '';
383 });
384 }
385
386 function protectSource( data, editor )
387 {
388 var protectedHtml = [],
389 protectRegexes = editor.config.protectedSource,
390 store = editor._.dataStore || ( editor._.dataStore = { id : 1 } ),
391 tempRegex = /<\!--\{cke_temp(comment)?\}(\d*?)-->/g;
392
393 var regexes =
394 [
395 // Script tags will also be forced to be protected, otherwise
396 // IE will execute them.
397 ( /<script[\s\S]*?<\/script>/gi ),
398
399 // <noscript> tags (get lost in IE and messed up in FF).
400 /<noscript[\s\S]*?<\/noscript>/gi
401 ]
402 .concat( protectRegexes );
403
404 // First of any other protection, we must protect all comments
405 // to avoid loosing them (of course, IE related).
406 // Note that we use a different tag for comments, as we need to
407 // transform them when applying filters.
408 data = data.replace( (/<!--[\s\S]*?-->/g), function( match )
409 {
410 return '<!--{cke_tempcomment}' + ( protectedHtml.push( match ) - 1 ) + '-->';
411 });
412
413 for ( var i = 0 ; i < regexes.length ; i++ )
414 {
415 data = data.replace( regexes[i], function( match )
416 {
417 match = match.replace( tempRegex, // There could be protected source inside another one. (#3869).
418 function( $, isComment, id )
419 {
420 return protectedHtml[ id ];
421 }
422 );
423
424 // Avoid protecting over protected, e.g. /\{.*?\}/
425 return ( /cke_temp(comment)?/ ).test( match ) ? match
426 : '<!--{cke_temp}' + ( protectedHtml.push( match ) - 1 ) + '-->';
427 });
428 }
429 data = data.replace( tempRegex, function( $, isComment, id )
430 {
431 return '<!--' + protectedSourceMarker +
432 ( isComment ? '{C}' : '' ) +
433 encodeURIComponent( protectedHtml[ id ] ).replace( /--/g, '%2D%2D' ) +
434 '-->';
435 }
436 );
437
438 // Different protection pattern is used for those that
439 // live in attributes to avoid from being HTML encoded.
440 return data.replace( /(['"]).*?\1/g, function ( match )
441 {
442 return match.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )
443 {
444 store[ store.id ] = decodeURIComponent( data );
445 return '{cke_protected_'+ ( store.id++ ) + '}';
446 });
447 });
448 }
449
450 CKEDITOR.plugins.add( 'htmldataprocessor',
451 {
452 requires : [ 'htmlwriter' ],
453
454 init : function( editor )
455 {
456 var dataProcessor = editor.dataProcessor = new CKEDITOR.htmlDataProcessor( editor );
457
458 dataProcessor.writer.forceSimpleAmpersand = editor.config.forceSimpleAmpersand;
459
460 dataProcessor.dataFilter.addRules( defaultDataFilterRules );
461 dataProcessor.dataFilter.addRules( defaultDataBlockFilterRules );
462 dataProcessor.htmlFilter.addRules( defaultHtmlFilterRules );
463
464 var defaultHtmlBlockFilterRules = { elements : {} };
465 for ( i in blockLikeTags )
466 defaultHtmlBlockFilterRules.elements[ i ] = getBlockExtension( true, editor.config.fillEmptyBlocks );
467
468 dataProcessor.htmlFilter.addRules( defaultHtmlBlockFilterRules );
469 },
470
471 onLoad : function()
472 {
473 ! ( 'fillEmptyBlocks' in CKEDITOR.config ) && ( CKEDITOR.config.fillEmptyBlocks = 1 );
474 }
475 });
476
477 CKEDITOR.htmlDataProcessor = function( editor )
478 {
479 this.editor = editor;
480
481 this.writer = new CKEDITOR.htmlWriter();
482 this.dataFilter = new CKEDITOR.htmlParser.filter();
483 this.htmlFilter = new CKEDITOR.htmlParser.filter();
484 };
485
486 CKEDITOR.htmlDataProcessor.prototype =
487 {
488 toHtml : function( data, fixForBody )
489 {
490 // The source data is already HTML, but we need to clean
491 // it up and apply the filter.
492
493 data = protectSource( data, this.editor );
494
495 // Before anything, we must protect the URL attributes as the
496 // browser may changing them when setting the innerHTML later in
497 // the code.
498 data = protectAttributes( data );
499
500 // Protect elements than can't be set inside a DIV. E.g. IE removes
501 // style tags from innerHTML. (#3710)
502 data = protectElements( data );
503
504 // Certain elements has problem to go through DOM operation, protect
505 // them by prefixing 'cke' namespace. (#3591)
506 data = protectElementsNames( data );
507
508 // All none-IE browsers ignore self-closed custom elements,
509 // protecting them into open-close. (#3591)
510 data = protectSelfClosingElements( data );
511
512 // Compensate one leading line break after <pre> open as browsers
513 // eat it up. (#5789)
514 data = protectPreFormatted( data );
515
516 // Call the browser to help us fixing a possibly invalid HTML
517 // structure.
518 var div = new CKEDITOR.dom.element( 'div' );
519 // Add fake character to workaround IE comments bug. (#3801)
520 div.setHtml( 'a' + data );
521 data = div.getHtml().substr( 1 );
522
523 // Unprotect "some" of the protected elements at this point.
524 data = unprotectElementNames( data );
525
526 data = unprotectElements( data );
527
528 // Restore the comments that have been protected, in this way they
529 // can be properly filtered.
530 data = unprotectRealComments( data );
531
532 // Now use our parser to make further fixes to the structure, as
533 // well as apply the filter.
534 var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),
535 writer = new CKEDITOR.htmlParser.basicWriter();
536
537 fragment.writeHtml( writer, this.dataFilter );
538 data = writer.getHtml( true );
539
540 // Protect the real comments again.
541 data = protectRealComments( data );
542
543 return data;
544 },
545
546 toDataFormat : function( html, fixForBody )
547 {
548 var writer = this.writer,
549 fragment = CKEDITOR.htmlParser.fragment.fromHtml( html, fixForBody );
550
551 writer.reset();
552
553 fragment.writeHtml( writer, this.htmlFilter );
554
555 var data = writer.getHtml( true );
556
557 // Restore those non-HTML protected source. (#4475,#4880)
558 data = unprotectRealComments( data );
559 data = unprotectSource( data, this.editor );
560
561 return data;
562 }
563 };
564})();
565
566/**
567 * Whether to force using "&" instead of "&amp;amp;" in elements attributes
568 * values, it's not recommended to change this setting for compliance with the
569 * W3C XHTML 1.0 standards (<a href="http://www.w3.org/TR/xhtml1/#C_12">C.12, XHTML 1.0</a>).
570 * @name CKEDITOR.config.forceSimpleAmpersand
571 * @name CKEDITOR.config.forceSimpleAmpersand
572 * @type Boolean
573 * @default false
574 * @example
575 * config.forceSimpleAmpersand = false;
576 */
577
578/**
579 * Whether a filler text (non-breaking space entity - &nbsp;) will be inserted into empty block elements in HTML output,
580 * this is used to render block elements properly with line-height; When a function is instead specified,
581 * it'll be passed a {@link CKEDITOR.htmlParser.element} to decide whether adding the filler text
582 * by expecting a boolean return value.
583 * @name CKEDITOR.config.fillEmptyBlocks
584 * @since 3.5
585 * @type Boolean
586 * @default true
587 * @example
588 * config.fillEmptyBlocks = false; // Prevent filler nodes in all empty blocks.
589 *
590 * // Prevent filler node only in float cleaners.
591 * config.fillEmptyBlocks = function( element )
592 * {
593 * if ( element.attributes[ 'class' ].indexOf ( 'clear-both' ) != -1 )
594 * return false;
595 * }
596 */
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