source: trunk/admin/inc/ckeditor/_source/plugins/bidi/plugin.js@ 430

Last change on this file since 430 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: 10.2 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 var guardElements = { table:1, ul:1, ol:1, blockquote:1, div:1 },
9 directSelectionGuardElements = {},
10 // All guard elements which can have a direction applied on them.
11 allGuardElements = {};
12 CKEDITOR.tools.extend( directSelectionGuardElements, guardElements, { tr:1, p:1, div:1, li:1 } );
13 CKEDITOR.tools.extend( allGuardElements, directSelectionGuardElements, { td:1 } );
14
15 function onSelectionChange( e )
16 {
17 setToolbarStates( e );
18 handleMixedDirContent( e );
19 }
20
21 function setToolbarStates( evt )
22 {
23 var editor = evt.editor,
24 path = evt.data.path;
25
26 if ( editor.readOnly )
27 return;
28
29 var useComputedState = editor.config.useComputedState,
30 selectedElement;
31
32 useComputedState = useComputedState === undefined || useComputedState;
33
34 // We can use computedState provided by the browser or traverse parents manually.
35 if ( !useComputedState )
36 selectedElement = getElementForDirection( path.lastElement );
37
38 selectedElement = selectedElement || path.block || path.blockLimit;
39
40 // If we're having BODY here, user probably done CTRL+A, let's try to get the enclosed node, if any.
41 if ( selectedElement.is( 'body' ) )
42 {
43 var enclosedNode = editor.getSelection().getRanges()[ 0 ].getEnclosedNode();
44 enclosedNode && enclosedNode.type == CKEDITOR.NODE_ELEMENT && ( selectedElement = enclosedNode );
45 }
46
47 if ( !selectedElement )
48 return;
49
50 var selectionDir = useComputedState ?
51 selectedElement.getComputedStyle( 'direction' ) :
52 selectedElement.getStyle( 'direction' ) || selectedElement.getAttribute( 'dir' );
53
54 editor.getCommand( 'bidirtl' ).setState( selectionDir == 'rtl' ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF );
55 editor.getCommand( 'bidiltr' ).setState( selectionDir == 'ltr' ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF );
56 }
57
58 function handleMixedDirContent( evt )
59 {
60 var editor = evt.editor,
61 directionNode = evt.data.path.block || evt.data.path.blockLimit;
62
63 editor.fire( 'contentDirChanged', directionNode ? directionNode.getComputedStyle( 'direction' ) : editor.lang.dir );
64 }
65
66 /**
67 * Returns element with possibility of applying the direction.
68 * @param node
69 */
70 function getElementForDirection( node )
71 {
72 while ( node && !( node.getName() in allGuardElements || node.is( 'body' ) ) )
73 {
74 var parent = node.getParent();
75 if ( !parent )
76 break;
77
78 node = parent;
79 }
80
81 return node;
82 }
83
84 function switchDir( element, dir, editor, database )
85 {
86 if ( element.isReadOnly() )
87 return;
88
89 // Mark this element as processed by switchDir.
90 CKEDITOR.dom.element.setMarker( database, element, 'bidi_processed', 1 );
91
92 // Check whether one of the ancestors has already been styled.
93 var parent = element;
94 while ( ( parent = parent.getParent() ) && !parent.is( 'body' ) )
95 {
96 if ( parent.getCustomData( 'bidi_processed' ) )
97 {
98 // Ancestor style must dominate.
99 element.removeStyle( 'direction' );
100 element.removeAttribute( 'dir' );
101 return;
102 }
103 }
104
105 var useComputedState = ( 'useComputedState' in editor.config ) ? editor.config.useComputedState : 1;
106
107 var elementDir = useComputedState ? element.getComputedStyle( 'direction' )
108 : element.getStyle( 'direction' ) || element.hasAttribute( 'dir' );
109
110 // Stop if direction is same as present.
111 if ( elementDir == dir )
112 return;
113
114 // Clear direction on this element.
115 element.removeStyle( 'direction' );
116
117 // Do the second check when computed state is ON, to check
118 // if we need to apply explicit direction on this element.
119 if ( useComputedState )
120 {
121 element.removeAttribute( 'dir' );
122 if ( dir != element.getComputedStyle( 'direction' ) )
123 element.setAttribute( 'dir', dir );
124 }
125 else
126 // Set new direction for this element.
127 element.setAttribute( 'dir', dir );
128
129 editor.forceNextSelectionCheck();
130
131 return;
132 }
133
134 function getFullySelected( range, elements, enterMode )
135 {
136 var ancestor = range.getCommonAncestor( false, true );
137
138 range = range.clone();
139 range.enlarge( enterMode == CKEDITOR.ENTER_BR ?
140 CKEDITOR.ENLARGE_LIST_ITEM_CONTENTS
141 : CKEDITOR.ENLARGE_BLOCK_CONTENTS );
142
143 if ( range.checkBoundaryOfElement( ancestor, CKEDITOR.START )
144 && range.checkBoundaryOfElement( ancestor, CKEDITOR.END ) )
145 {
146 var parent;
147 while ( ancestor && ancestor.type == CKEDITOR.NODE_ELEMENT
148 && ( parent = ancestor.getParent() )
149 && parent.getChildCount() == 1
150 && !( ancestor.getName() in elements ) )
151 ancestor = parent;
152
153 return ancestor.type == CKEDITOR.NODE_ELEMENT
154 && ( ancestor.getName() in elements )
155 && ancestor;
156 }
157 }
158
159 function bidiCommand( dir )
160 {
161 return function( editor )
162 {
163 var selection = editor.getSelection(),
164 enterMode = editor.config.enterMode,
165 ranges = selection.getRanges();
166
167 if ( ranges && ranges.length )
168 {
169 var database = {};
170
171 // Creates bookmarks for selection, as we may split some blocks.
172 var bookmarks = selection.createBookmarks();
173
174 var rangeIterator = ranges.createIterator(),
175 range,
176 i = 0;
177
178 while ( ( range = rangeIterator.getNextRange( 1 ) ) )
179 {
180 // Apply do directly selected elements from guardElements.
181 var selectedElement = range.getEnclosedNode();
182
183 // If this is not our element of interest, apply to fully selected elements from guardElements.
184 if ( !selectedElement || selectedElement
185 && !( selectedElement.type == CKEDITOR.NODE_ELEMENT && selectedElement.getName() in directSelectionGuardElements )
186 )
187 selectedElement = getFullySelected( range, guardElements, enterMode );
188
189 selectedElement && switchDir( selectedElement, dir, editor, database );
190
191 var iterator,
192 block;
193
194 // Walker searching for guardElements.
195 var walker = new CKEDITOR.dom.walker( range );
196
197 var start = bookmarks[ i ].startNode,
198 end = bookmarks[ i++ ].endNode;
199
200 walker.evaluator = function( node )
201 {
202 return !! ( node.type == CKEDITOR.NODE_ELEMENT
203 && node.getName() in guardElements
204 && !( node.getName() == ( enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' )
205 && node.getParent().type == CKEDITOR.NODE_ELEMENT
206 && node.getParent().getName() == 'blockquote' )
207 // Element must be fully included in the range as well. (#6485).
208 && node.getPosition( start ) & CKEDITOR.POSITION_FOLLOWING
209 && ( ( node.getPosition( end ) & CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_CONTAINS ) == CKEDITOR.POSITION_PRECEDING ) );
210 };
211
212 while ( ( block = walker.next() ) )
213 switchDir( block, dir, editor, database );
214
215 iterator = range.createIterator();
216 iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR;
217
218 while ( ( block = iterator.getNextParagraph( enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ) ) )
219 switchDir( block, dir, editor, database );
220 }
221
222 CKEDITOR.dom.element.clearAllMarkers( database );
223
224 editor.forceNextSelectionCheck();
225 // Restore selection position.
226 selection.selectBookmarks( bookmarks );
227
228 editor.focus();
229 }
230 };
231 }
232
233 CKEDITOR.plugins.add( 'bidi',
234 {
235 requires : [ 'styles', 'button' ],
236
237 init : function( editor )
238 {
239 // All buttons use the same code to register. So, to avoid
240 // duplications, let's use this tool function.
241 var addButtonCommand = function( buttonName, buttonLabel, commandName, commandExec )
242 {
243 editor.addCommand( commandName, new CKEDITOR.command( editor, { exec : commandExec }) );
244
245 editor.ui.addButton( buttonName,
246 {
247 label : buttonLabel,
248 command : commandName
249 });
250 };
251
252 var lang = editor.lang.bidi;
253
254 addButtonCommand( 'BidiLtr', lang.ltr, 'bidiltr', bidiCommand( 'ltr' ) );
255 addButtonCommand( 'BidiRtl', lang.rtl, 'bidirtl', bidiCommand( 'rtl' ) );
256
257 editor.on( 'selectionChange', onSelectionChange );
258 editor.on( 'contentDom', function()
259 {
260 editor.document.on( 'dirChanged', function( evt )
261 {
262 editor.fire( 'dirChanged',
263 {
264 node : evt.data,
265 dir : evt.data.getDirection( 1 )
266 } );
267 });
268 });
269 }
270 });
271
272 // If the element direction changed, we need to switch the margins of
273 // the element and all its children, so it will get really reflected
274 // like a mirror. (#5910)
275 function isOffline( el )
276 {
277 var html = el.getDocument().getBody().getParent();
278 while ( el )
279 {
280 if ( el.equals( html ) )
281 return false;
282 el = el.getParent();
283 }
284 return true;
285 }
286 function dirChangeNotifier( org )
287 {
288 var isAttribute = org == elementProto.setAttribute,
289 isRemoveAttribute = org == elementProto.removeAttribute,
290 dirStyleRegexp = /\bdirection\s*:\s*(.*?)\s*(:?$|;)/;
291
292 return function( name, val )
293 {
294 if ( !this.getDocument().equals( CKEDITOR.document ) )
295 {
296 var orgDir;
297 if ( ( name == ( isAttribute || isRemoveAttribute ? 'dir' : 'direction' ) ||
298 name == 'style' && ( isRemoveAttribute || dirStyleRegexp.test( val ) ) ) && !isOffline( this ) )
299 {
300 orgDir = this.getDirection( 1 );
301 var retval = org.apply( this, arguments );
302 if ( orgDir != this.getDirection( 1 ) )
303 {
304 this.getDocument().fire( 'dirChanged', this );
305 return retval;
306 }
307 }
308 }
309
310 return org.apply( this, arguments );
311 };
312 }
313
314 var elementProto = CKEDITOR.dom.element.prototype,
315 methods = [ 'setStyle', 'removeStyle', 'setAttribute', 'removeAttribute' ];
316 for ( var i = 0; i < methods.length; i++ )
317 elementProto[ methods[ i ] ] = CKEDITOR.tools.override( elementProto[ methods [ i ] ], dirChangeNotifier );
318})();
319
320/**
321 * Fired when the language direction of an element is changed
322 * @name CKEDITOR.editor#dirChanged
323 * @event
324 * @param {CKEDITOR.editor} editor This editor instance.
325 * @param {Object} eventData.node The element that is being changed.
326 * @param {String} eventData.dir The new direction.
327 */
328
329/**
330 * Fired when the language direction in the specific cursor position is changed
331 * @name CKEDITOR.editor#contentDirChanged
332 * @event
333 * @param {String} eventData The direction in the current position.
334 */
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