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Diffstat (limited to 'sources/core/selection.js')
-rw-r--r-- | sources/core/selection.js | 2183 |
1 files changed, 2183 insertions, 0 deletions
diff --git a/sources/core/selection.js b/sources/core/selection.js new file mode 100644 index 00000000..fec3b7fc --- /dev/null +++ b/sources/core/selection.js | |||
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1 | /** | ||
2 | * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved. | ||
3 | * For licensing, see LICENSE.md or http://ckeditor.com/license | ||
4 | */ | ||
5 | |||
6 | ( function() { | ||
7 | // #### checkSelectionChange : START | ||
8 | |||
9 | // The selection change check basically saves the element parent tree of | ||
10 | // the current node and check it on successive requests. If there is any | ||
11 | // change on the tree, then the selectionChange event gets fired. | ||
12 | function checkSelectionChange() { | ||
13 | // A possibly available fake-selection. | ||
14 | var sel = this._.fakeSelection, | ||
15 | realSel; | ||
16 | |||
17 | if ( sel ) { | ||
18 | realSel = this.getSelection( 1 ); | ||
19 | |||
20 | // If real (not locked/stored) selection was moved from hidden container, | ||
21 | // then the fake-selection must be invalidated. | ||
22 | if ( !realSel || !realSel.isHidden() ) { | ||
23 | // Remove the cache from fake-selection references in use elsewhere. | ||
24 | sel.reset(); | ||
25 | |||
26 | // Have the code using the native selection. | ||
27 | sel = 0; | ||
28 | } | ||
29 | } | ||
30 | |||
31 | // If not fake-selection is available then get the native selection. | ||
32 | if ( !sel ) { | ||
33 | sel = realSel || this.getSelection( 1 ); | ||
34 | |||
35 | // Editor may have no selection at all. | ||
36 | if ( !sel || sel.getType() == CKEDITOR.SELECTION_NONE ) | ||
37 | return; | ||
38 | } | ||
39 | |||
40 | this.fire( 'selectionCheck', sel ); | ||
41 | |||
42 | var currentPath = this.elementPath(); | ||
43 | if ( !currentPath.compare( this._.selectionPreviousPath ) ) { | ||
44 | // Cache the active element, which we'll eventually lose on Webkit. | ||
45 | if ( CKEDITOR.env.webkit ) | ||
46 | this._.previousActive = this.document.getActive(); | ||
47 | |||
48 | this._.selectionPreviousPath = currentPath; | ||
49 | this.fire( 'selectionChange', { selection: sel, path: currentPath } ); | ||
50 | } | ||
51 | } | ||
52 | |||
53 | var checkSelectionChangeTimer, checkSelectionChangeTimeoutPending; | ||
54 | |||
55 | function checkSelectionChangeTimeout() { | ||
56 | // Firing the "OnSelectionChange" event on every key press started to | ||
57 | // be too slow. This function guarantees that there will be at least | ||
58 | // 200ms delay between selection checks. | ||
59 | |||
60 | checkSelectionChangeTimeoutPending = true; | ||
61 | |||
62 | if ( checkSelectionChangeTimer ) | ||
63 | return; | ||
64 | |||
65 | checkSelectionChangeTimeoutExec.call( this ); | ||
66 | |||
67 | checkSelectionChangeTimer = CKEDITOR.tools.setTimeout( checkSelectionChangeTimeoutExec, 200, this ); | ||
68 | } | ||
69 | |||
70 | function checkSelectionChangeTimeoutExec() { | ||
71 | checkSelectionChangeTimer = null; | ||
72 | |||
73 | if ( checkSelectionChangeTimeoutPending ) { | ||
74 | // Call this with a timeout so the browser properly moves the | ||
75 | // selection after the mouseup. It happened that the selection was | ||
76 | // being moved after the mouseup when clicking inside selected text | ||
77 | // with Firefox. | ||
78 | CKEDITOR.tools.setTimeout( checkSelectionChange, 0, this ); | ||
79 | |||
80 | checkSelectionChangeTimeoutPending = false; | ||
81 | } | ||
82 | } | ||
83 | |||
84 | // #### checkSelectionChange : END | ||
85 | |||
86 | var isVisible = CKEDITOR.dom.walker.invisible( 1 ); | ||
87 | |||
88 | // May absorb the caret if: | ||
89 | // * is a visible node, | ||
90 | // * is a non-empty element (this rule will accept elements like <strong></strong> because they | ||
91 | // they were not accepted by the isVisible() check, not not <br> which cannot absorb the caret). | ||
92 | // See #12621. | ||
93 | function mayAbsorbCaret( node ) { | ||
94 | if ( isVisible( node ) ) | ||
95 | return true; | ||
96 | |||
97 | if ( node.type == CKEDITOR.NODE_ELEMENT && !node.is( CKEDITOR.dtd.$empty ) ) | ||
98 | return true; | ||
99 | |||
100 | return false; | ||
101 | } | ||
102 | |||
103 | function rangeRequiresFix( range ) { | ||
104 | // Whether we must prevent from absorbing caret by this context node. | ||
105 | // Also checks whether there's an editable position next to that node. | ||
106 | function ctxRequiresFix( node, isAtEnd ) { | ||
107 | // It's ok for us if a text node absorbs the caret, because | ||
108 | // the caret container element isn't changed then. | ||
109 | if ( !node || node.type == CKEDITOR.NODE_TEXT ) | ||
110 | return false; | ||
111 | |||
112 | var testRng = range.clone(); | ||
113 | return testRng[ 'moveToElementEdit' + ( isAtEnd ? 'End' : 'Start' ) ]( node ); | ||
114 | } | ||
115 | |||
116 | // Range root must be the editable element, it's to avoid creating filler char | ||
117 | // on any temporary internal selection. | ||
118 | if ( !( range.root instanceof CKEDITOR.editable ) ) | ||
119 | return false; | ||
120 | |||
121 | var ct = range.startContainer; | ||
122 | |||
123 | var previous = range.getPreviousNode( mayAbsorbCaret, null, ct ), | ||
124 | next = range.getNextNode( mayAbsorbCaret, null, ct ); | ||
125 | |||
126 | // Any adjacent text container may absorb the caret, e.g. | ||
127 | // <p><strong>text</strong>^foo</p> | ||
128 | // <p>foo^<strong>text</strong></p> | ||
129 | // <div>^<p>foo</p></div> | ||
130 | if ( ctxRequiresFix( previous ) || ctxRequiresFix( next, 1 ) ) | ||
131 | return true; | ||
132 | |||
133 | // Empty block/inline element is also affected. <span>^</span>, <p>^</p> (#7222) | ||
134 | // If you found this line confusing check #12655. | ||
135 | if ( !( previous || next ) && !( ct.type == CKEDITOR.NODE_ELEMENT && ct.isBlockBoundary() && ct.getBogus() ) ) | ||
136 | return true; | ||
137 | |||
138 | return false; | ||
139 | } | ||
140 | |||
141 | function createFillingChar( element ) { | ||
142 | removeFillingChar( element, false ); | ||
143 | |||
144 | var fillingChar = element.getDocument().createText( '\u200B' ); | ||
145 | element.setCustomData( 'cke-fillingChar', fillingChar ); | ||
146 | |||
147 | return fillingChar; | ||
148 | } | ||
149 | |||
150 | function getFillingChar( element ) { | ||
151 | return element.getCustomData( 'cke-fillingChar' ); | ||
152 | } | ||
153 | |||
154 | // Checks if a filling char has been used, eventualy removing it (#1272). | ||
155 | function checkFillingChar( element ) { | ||
156 | var fillingChar = getFillingChar( element ); | ||
157 | if ( fillingChar ) { | ||
158 | // Use this flag to avoid removing the filling char right after | ||
159 | // creating it. | ||
160 | if ( fillingChar.getCustomData( 'ready' ) ) | ||
161 | removeFillingChar( element ); | ||
162 | else | ||
163 | fillingChar.setCustomData( 'ready', 1 ); | ||
164 | } | ||
165 | } | ||
166 | |||
167 | function removeFillingChar( element, keepSelection ) { | ||
168 | var fillingChar = element && element.removeCustomData( 'cke-fillingChar' ); | ||
169 | if ( fillingChar ) { | ||
170 | |||
171 | // Text selection position might get mangled by | ||
172 | // subsequent dom modification, save it now for restoring. (#8617) | ||
173 | if ( keepSelection !== false ) { | ||
174 | var bm, | ||
175 | sel = element.getDocument().getSelection().getNative(), | ||
176 | // Be error proof. | ||
177 | range = sel && sel.type != 'None' && sel.getRangeAt( 0 ); | ||
178 | |||
179 | if ( fillingChar.getLength() > 1 && range && range.intersectsNode( fillingChar.$ ) ) { | ||
180 | bm = createNativeSelectionBookmark( sel ); | ||
181 | |||
182 | // Anticipate the offset change brought by the removed char. | ||
183 | var startAffected = sel.anchorNode == fillingChar.$ && sel.anchorOffset > 0, | ||
184 | endAffected = sel.focusNode == fillingChar.$ && sel.focusOffset > 0; | ||
185 | startAffected && bm[ 0 ].offset--; | ||
186 | endAffected && bm[ 1 ].offset--; | ||
187 | } | ||
188 | } | ||
189 | |||
190 | // We can't simply remove the filling node because the user | ||
191 | // will actually enlarge it when typing, so we just remove the | ||
192 | // invisible char from it. | ||
193 | fillingChar.setText( replaceFillingChar( fillingChar.getText() ) ); | ||
194 | |||
195 | // Restore the bookmark preserving selection's direction. | ||
196 | if ( bm ) { | ||
197 | moveNativeSelectionToBookmark( element.getDocument().$, bm ); | ||
198 | } | ||
199 | } | ||
200 | } | ||
201 | |||
202 | function replaceFillingChar( html ) { | ||
203 | return html.replace( /\u200B( )?/g, function( match ) { | ||
204 | // #10291 if filling char is followed by a space replace it with nbsp. | ||
205 | return match[ 1 ] ? '\xa0' : ''; | ||
206 | } ); | ||
207 | } | ||
208 | |||
209 | function createNativeSelectionBookmark( sel ) { | ||
210 | return [ | ||
211 | { node: sel.anchorNode, offset: sel.anchorOffset }, | ||
212 | { node: sel.focusNode, offset: sel.focusOffset } | ||
213 | ]; | ||
214 | } | ||
215 | |||
216 | function moveNativeSelectionToBookmark( document, bm ) { | ||
217 | var sel = document.getSelection(), | ||
218 | range = document.createRange(); | ||
219 | |||
220 | range.setStart( bm[ 0 ].node, bm[ 0 ].offset ); | ||
221 | range.collapse( true ); | ||
222 | sel.removeAllRanges(); | ||
223 | sel.addRange( range ); | ||
224 | sel.extend( bm[ 1 ].node, bm[ 1 ].offset ); | ||
225 | } | ||
226 | |||
227 | // Creates cke_hidden_sel container and puts real selection there. | ||
228 | function hideSelection( editor ) { | ||
229 | var style = CKEDITOR.env.ie ? 'display:none' : 'position:fixed;top:0;left:-1000px', | ||
230 | hiddenEl = CKEDITOR.dom.element.createFromHtml( | ||
231 | '<div data-cke-hidden-sel="1" data-cke-temp="1" style="' + style + '"> </div>', | ||
232 | editor.document ); | ||
233 | |||
234 | editor.fire( 'lockSnapshot' ); | ||
235 | |||
236 | editor.editable().append( hiddenEl ); | ||
237 | |||
238 | // Always use real selection to avoid overriding locked one (http://dev.ckeditor.com/ticket/11104#comment:13). | ||
239 | var sel = editor.getSelection( 1 ), | ||
240 | range = editor.createRange(), | ||
241 | // Cancel selectionchange fired by selectRanges - prevent from firing selectionChange. | ||
242 | listener = sel.root.on( 'selectionchange', function( evt ) { | ||
243 | evt.cancel(); | ||
244 | }, null, null, 0 ); | ||
245 | |||
246 | range.setStartAt( hiddenEl, CKEDITOR.POSITION_AFTER_START ); | ||
247 | range.setEndAt( hiddenEl, CKEDITOR.POSITION_BEFORE_END ); | ||
248 | sel.selectRanges( [ range ] ); | ||
249 | |||
250 | listener.removeListener(); | ||
251 | |||
252 | editor.fire( 'unlockSnapshot' ); | ||
253 | |||
254 | // Set this value at the end, so reset() executed by selectRanges() | ||
255 | // will clean up old hidden selection container. | ||
256 | editor._.hiddenSelectionContainer = hiddenEl; | ||
257 | } | ||
258 | |||
259 | function removeHiddenSelectionContainer( editor ) { | ||
260 | var hiddenEl = editor._.hiddenSelectionContainer; | ||
261 | |||
262 | if ( hiddenEl ) { | ||
263 | var isDirty = editor.checkDirty(); | ||
264 | |||
265 | editor.fire( 'lockSnapshot' ); | ||
266 | hiddenEl.remove(); | ||
267 | editor.fire( 'unlockSnapshot' ); | ||
268 | |||
269 | !isDirty && editor.resetDirty(); | ||
270 | } | ||
271 | |||
272 | delete editor._.hiddenSelectionContainer; | ||
273 | } | ||
274 | |||
275 | // Object containing keystroke handlers for fake selection. | ||
276 | var fakeSelectionDefaultKeystrokeHandlers = ( function() { | ||
277 | function leave( right ) { | ||
278 | return function( evt ) { | ||
279 | var range = evt.editor.createRange(); | ||
280 | |||
281 | // Move selection only if there's a editable place for it. | ||
282 | // It no, then do nothing (keystroke will be blocked, widget selection kept). | ||
283 | if ( range.moveToClosestEditablePosition( evt.selected, right ) ) | ||
284 | evt.editor.getSelection().selectRanges( [ range ] ); | ||
285 | |||
286 | // Prevent default. | ||
287 | return false; | ||
288 | }; | ||
289 | } | ||
290 | |||
291 | function del( right ) { | ||
292 | return function( evt ) { | ||
293 | var editor = evt.editor, | ||
294 | range = editor.createRange(), | ||
295 | found; | ||
296 | |||
297 | // If haven't found place for caret on the default side, | ||
298 | // try to find it on the other side. | ||
299 | if ( !( found = range.moveToClosestEditablePosition( evt.selected, right ) ) ) | ||
300 | found = range.moveToClosestEditablePosition( evt.selected, !right ); | ||
301 | |||
302 | if ( found ) | ||
303 | editor.getSelection().selectRanges( [ range ] ); | ||
304 | |||
305 | // Save the state before removing selected element. | ||
306 | editor.fire( 'saveSnapshot' ); | ||
307 | |||
308 | evt.selected.remove(); | ||
309 | |||
310 | // Haven't found any editable space before removing element, | ||
311 | // try to place the caret anywhere (most likely, in empty editable). | ||
312 | if ( !found ) { | ||
313 | range.moveToElementEditablePosition( editor.editable() ); | ||
314 | editor.getSelection().selectRanges( [ range ] ); | ||
315 | } | ||
316 | |||
317 | editor.fire( 'saveSnapshot' ); | ||
318 | |||
319 | // Prevent default. | ||
320 | return false; | ||
321 | }; | ||
322 | } | ||
323 | |||
324 | var leaveLeft = leave(), | ||
325 | leaveRight = leave( 1 ); | ||
326 | |||
327 | return { | ||
328 | 37: leaveLeft, // LEFT | ||
329 | 38: leaveLeft, // UP | ||
330 | 39: leaveRight, // RIGHT | ||
331 | 40: leaveRight, // DOWN | ||
332 | 8: del(), // BACKSPACE | ||
333 | 46: del( 1 ) // DELETE | ||
334 | }; | ||
335 | } )(); | ||
336 | |||
337 | // Handle left, right, delete and backspace keystrokes next to non-editable elements | ||
338 | // by faking selection on them. | ||
339 | function getOnKeyDownListener( editor ) { | ||
340 | var keystrokes = { 37: 1, 39: 1, 8: 1, 46: 1 }; | ||
341 | |||
342 | return function( evt ) { | ||
343 | var keystroke = evt.data.getKeystroke(); | ||
344 | |||
345 | // Handle only left/right/del/bspace keys. | ||
346 | if ( !keystrokes[ keystroke ] ) | ||
347 | return; | ||
348 | |||
349 | var sel = editor.getSelection(), | ||
350 | ranges = sel.getRanges(), | ||
351 | range = ranges[ 0 ]; | ||
352 | |||
353 | // Handle only single range and it has to be collapsed. | ||
354 | if ( ranges.length != 1 || !range.collapsed ) | ||
355 | return; | ||
356 | |||
357 | var next = range[ keystroke < 38 ? 'getPreviousEditableNode' : 'getNextEditableNode' ](); | ||
358 | |||
359 | if ( next && next.type == CKEDITOR.NODE_ELEMENT && next.getAttribute( 'contenteditable' ) == 'false' ) { | ||
360 | editor.getSelection().fake( next ); | ||
361 | evt.data.preventDefault(); | ||
362 | evt.cancel(); | ||
363 | } | ||
364 | }; | ||
365 | } | ||
366 | |||
367 | // If fake selection should be applied this function will return instance of | ||
368 | // CKEDITOR.dom.element which should gain fake selection. | ||
369 | function getNonEditableFakeSelectionReceiver( ranges ) { | ||
370 | var enclosedNode, shrinkedNode, clone, range; | ||
371 | |||
372 | if ( ranges.length == 1 && !( range = ranges[ 0 ] ).collapsed && | ||
373 | ( enclosedNode = range.getEnclosedNode() ) && enclosedNode.type == CKEDITOR.NODE_ELEMENT ) { | ||
374 | // So far we can't say that enclosed element is non-editable. Before checking, | ||
375 | // we'll shrink range (clone). Shrinking will stop on non-editable range, or | ||
376 | // innermost element (#11114). | ||
377 | clone = range.clone(); | ||
378 | clone.shrink( CKEDITOR.SHRINK_ELEMENT, true ); | ||
379 | |||
380 | // If shrinked range still encloses an element, check this one (shrink stops only on non-editable elements). | ||
381 | if ( ( shrinkedNode = clone.getEnclosedNode() ) && shrinkedNode.type == CKEDITOR.NODE_ELEMENT ) | ||
382 | enclosedNode = shrinkedNode; | ||
383 | |||
384 | if ( enclosedNode.getAttribute( 'contenteditable' ) == 'false' ) | ||
385 | return enclosedNode; | ||
386 | } | ||
387 | } | ||
388 | |||
389 | // Fix ranges which may end after hidden selection container. | ||
390 | // Note: this function may only be used if hidden selection container | ||
391 | // is not in DOM any more. | ||
392 | function fixRangesAfterHiddenSelectionContainer( ranges, root ) { | ||
393 | var range; | ||
394 | for ( var i = 0; i < ranges.length; ++i ) { | ||
395 | range = ranges[ i ]; | ||
396 | if ( range.endContainer.equals( root ) ) { | ||
397 | // We can use getChildCount() because hidden selection container is not in DOM. | ||
398 | range.endOffset = Math.min( range.endOffset, root.getChildCount() ); | ||
399 | } | ||
400 | } | ||
401 | } | ||
402 | |||
403 | // Extract only editable part or ranges. | ||
404 | // Note: this function modifies ranges list! | ||
405 | // @param {CKEDITOR.dom.rangeList} ranges | ||
406 | function extractEditableRanges( ranges ) { | ||
407 | for ( var i = 0; i < ranges.length; i++ ) { | ||
408 | var range = ranges[ i ]; | ||
409 | |||
410 | // Drop range spans inside one ready-only node. | ||
411 | var parent = range.getCommonAncestor(); | ||
412 | if ( parent.isReadOnly() ) | ||
413 | ranges.splice( i, 1 ); | ||
414 | |||
415 | if ( range.collapsed ) | ||
416 | continue; | ||
417 | |||
418 | // Range may start inside a non-editable element, | ||
419 | // replace the range start after it. | ||
420 | if ( range.startContainer.isReadOnly() ) { | ||
421 | var current = range.startContainer, | ||
422 | isElement; | ||
423 | |||
424 | while ( current ) { | ||
425 | isElement = current.type == CKEDITOR.NODE_ELEMENT; | ||
426 | |||
427 | if ( ( isElement && current.is( 'body' ) ) || !current.isReadOnly() ) | ||
428 | break; | ||
429 | |||
430 | if ( isElement && current.getAttribute( 'contentEditable' ) == 'false' ) | ||
431 | range.setStartAfter( current ); | ||
432 | |||
433 | current = current.getParent(); | ||
434 | } | ||
435 | } | ||
436 | |||
437 | var startContainer = range.startContainer, | ||
438 | endContainer = range.endContainer, | ||
439 | startOffset = range.startOffset, | ||
440 | endOffset = range.endOffset, | ||
441 | walkerRange = range.clone(); | ||
442 | |||
443 | // Enlarge range start/end with text node to avoid walker | ||
444 | // being DOM destructive, it doesn't interfere our checking | ||
445 | // of elements below as well. | ||
446 | if ( startContainer && startContainer.type == CKEDITOR.NODE_TEXT ) { | ||
447 | if ( startOffset >= startContainer.getLength() ) | ||
448 | walkerRange.setStartAfter( startContainer ); | ||
449 | else | ||
450 | walkerRange.setStartBefore( startContainer ); | ||
451 | } | ||
452 | |||
453 | if ( endContainer && endContainer.type == CKEDITOR.NODE_TEXT ) { | ||
454 | if ( !endOffset ) | ||
455 | walkerRange.setEndBefore( endContainer ); | ||
456 | else | ||
457 | walkerRange.setEndAfter( endContainer ); | ||
458 | } | ||
459 | |||
460 | // Looking for non-editable element inside the range. | ||
461 | var walker = new CKEDITOR.dom.walker( walkerRange ); | ||
462 | walker.evaluator = function( node ) { | ||
463 | if ( node.type == CKEDITOR.NODE_ELEMENT && node.isReadOnly() ) { | ||
464 | var newRange = range.clone(); | ||
465 | range.setEndBefore( node ); | ||
466 | |||
467 | // Drop collapsed range around read-only elements, | ||
468 | // it make sure the range list empty when selecting | ||
469 | // only non-editable elements. | ||
470 | if ( range.collapsed ) | ||
471 | ranges.splice( i--, 1 ); | ||
472 | |||
473 | // Avoid creating invalid range. | ||
474 | if ( !( node.getPosition( walkerRange.endContainer ) & CKEDITOR.POSITION_CONTAINS ) ) { | ||
475 | newRange.setStartAfter( node ); | ||
476 | if ( !newRange.collapsed ) | ||
477 | ranges.splice( i + 1, 0, newRange ); | ||
478 | } | ||
479 | |||
480 | return true; | ||
481 | } | ||
482 | |||
483 | return false; | ||
484 | }; | ||
485 | |||
486 | walker.next(); | ||
487 | } | ||
488 | |||
489 | return ranges; | ||
490 | } | ||
491 | |||
492 | // Setup all editor instances for the necessary selection hooks. | ||
493 | CKEDITOR.on( 'instanceCreated', function( ev ) { | ||
494 | var editor = ev.editor; | ||
495 | |||
496 | editor.on( 'contentDom', function() { | ||
497 | var doc = editor.document, | ||
498 | outerDoc = CKEDITOR.document, | ||
499 | editable = editor.editable(), | ||
500 | body = doc.getBody(), | ||
501 | html = doc.getDocumentElement(); | ||
502 | |||
503 | var isInline = editable.isInline(); | ||
504 | |||
505 | var restoreSel, | ||
506 | lastSel; | ||
507 | |||
508 | // Give the editable an initial selection on first focus, | ||
509 | // put selection at a consistent position at the start | ||
510 | // of the contents. (#9507) | ||
511 | if ( CKEDITOR.env.gecko ) { | ||
512 | editable.attachListener( editable, 'focus', function( evt ) { | ||
513 | evt.removeListener(); | ||
514 | |||
515 | if ( restoreSel !== 0 ) { | ||
516 | var nativ = editor.getSelection().getNative(); | ||
517 | // Do it only if the native selection is at an unwanted | ||
518 | // place (at the very start of the editable). #10119 | ||
519 | if ( nativ && nativ.isCollapsed && nativ.anchorNode == editable.$ ) { | ||
520 | var rng = editor.createRange(); | ||
521 | rng.moveToElementEditStart( editable ); | ||
522 | rng.select(); | ||
523 | } | ||
524 | } | ||
525 | }, null, null, -2 ); | ||
526 | } | ||
527 | |||
528 | // Plays the magic here to restore/save dom selection on editable focus/blur. | ||
529 | editable.attachListener( editable, CKEDITOR.env.webkit ? 'DOMFocusIn' : 'focus', function() { | ||
530 | // On Webkit we use DOMFocusIn which is fired more often than focus - e.g. when moving from main editable | ||
531 | // to nested editable (or the opposite). Unlock selection all, but restore only when it was locked | ||
532 | // for the same active element, what will e.g. mean restoring after displaying dialog. | ||
533 | if ( restoreSel && CKEDITOR.env.webkit ) | ||
534 | restoreSel = editor._.previousActive && editor._.previousActive.equals( doc.getActive() ); | ||
535 | |||
536 | editor.unlockSelection( restoreSel ); | ||
537 | restoreSel = 0; | ||
538 | }, null, null, -1 ); | ||
539 | |||
540 | // Disable selection restoring when clicking in. | ||
541 | editable.attachListener( editable, 'mousedown', function() { | ||
542 | restoreSel = 0; | ||
543 | } ); | ||
544 | |||
545 | // Save a cloned version of current selection. | ||
546 | function saveSel() { | ||
547 | lastSel = new CKEDITOR.dom.selection( editor.getSelection() ); | ||
548 | lastSel.lock(); | ||
549 | } | ||
550 | |||
551 | // Browsers could loose the selection once the editable lost focus, | ||
552 | // in such case we need to reproduce it by saving a locked selection | ||
553 | // and restoring it upon focus gain. | ||
554 | if ( CKEDITOR.env.ie || isInline ) { | ||
555 | // For old IEs, we can retrieve the last correct DOM selection upon the "beforedeactivate" event. | ||
556 | // For the rest, a more frequent check is required for each selection change made. | ||
557 | if ( isMSSelection ) | ||
558 | editable.attachListener( editable, 'beforedeactivate', saveSel, null, null, -1 ); | ||
559 | else | ||
560 | editable.attachListener( editor, 'selectionCheck', saveSel, null, null, -1 ); | ||
561 | |||
562 | // Lock the selection and mark it to be restored. | ||
563 | // On Webkit we use DOMFocusOut which is fired more often than blur. I.e. it will also be | ||
564 | // fired when nested editable is blurred. | ||
565 | editable.attachListener( editable, CKEDITOR.env.webkit ? 'DOMFocusOut' : 'blur', function() { | ||
566 | editor.lockSelection( lastSel ); | ||
567 | restoreSel = 1; | ||
568 | }, null, null, -1 ); | ||
569 | |||
570 | // Disable selection restoring when clicking in. | ||
571 | editable.attachListener( editable, 'mousedown', function() { | ||
572 | restoreSel = 0; | ||
573 | } ); | ||
574 | } | ||
575 | |||
576 | // The following selection-related fixes only apply to classic (`iframe`-based) editable. | ||
577 | if ( CKEDITOR.env.ie && !isInline ) { | ||
578 | var scroll; | ||
579 | editable.attachListener( editable, 'mousedown', function( evt ) { | ||
580 | // IE scrolls document to top on right mousedown | ||
581 | // when editor has no focus, remember this scroll | ||
582 | // position and revert it before context menu opens. (#5778) | ||
583 | if ( evt.data.$.button == 2 ) { | ||
584 | var sel = editor.document.getSelection(); | ||
585 | if ( !sel || sel.getType() == CKEDITOR.SELECTION_NONE ) | ||
586 | scroll = editor.window.getScrollPosition(); | ||
587 | } | ||
588 | } ); | ||
589 | |||
590 | editable.attachListener( editable, 'mouseup', function( evt ) { | ||
591 | // Restore recorded scroll position when needed on right mouseup. | ||
592 | if ( evt.data.$.button == 2 && scroll ) { | ||
593 | editor.document.$.documentElement.scrollLeft = scroll.x; | ||
594 | editor.document.$.documentElement.scrollTop = scroll.y; | ||
595 | } | ||
596 | scroll = null; | ||
597 | } ); | ||
598 | |||
599 | // When content doc is in standards mode, IE doesn't focus the editor when | ||
600 | // clicking at the region below body (on html element) content, we emulate | ||
601 | // the normal behavior on old IEs. (#1659, #7932) | ||
602 | if ( doc.$.compatMode != 'BackCompat' ) { | ||
603 | if ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) { | ||
604 | html.on( 'mousedown', function( evt ) { | ||
605 | evt = evt.data; | ||
606 | |||
607 | // Expand the text range along with mouse move. | ||
608 | function onHover( evt ) { | ||
609 | evt = evt.data.$; | ||
610 | if ( textRng ) { | ||
611 | // Read the current cursor. | ||
612 | var rngEnd = body.$.createTextRange(); | ||
613 | |||
614 | moveRangeToPoint( rngEnd, evt.clientX, evt.clientY ); | ||
615 | |||
616 | // Handle drag directions. | ||
617 | textRng.setEndPoint( | ||
618 | startRng.compareEndPoints( 'StartToStart', rngEnd ) < 0 ? | ||
619 | 'EndToEnd' : 'StartToStart', rngEnd ); | ||
620 | |||
621 | // Update selection with new range. | ||
622 | textRng.select(); | ||
623 | } | ||
624 | } | ||
625 | |||
626 | function removeListeners() { | ||
627 | outerDoc.removeListener( 'mouseup', onSelectEnd ); | ||
628 | html.removeListener( 'mouseup', onSelectEnd ); | ||
629 | } | ||
630 | |||
631 | function onSelectEnd() { | ||
632 | html.removeListener( 'mousemove', onHover ); | ||
633 | removeListeners(); | ||
634 | |||
635 | // Make it in effect on mouse up. (#9022) | ||
636 | textRng.select(); | ||
637 | } | ||
638 | |||
639 | |||
640 | // We're sure that the click happens at the region | ||
641 | // below body, but not on scrollbar. | ||
642 | if ( evt.getTarget().is( 'html' ) && | ||
643 | evt.$.y < html.$.clientHeight && | ||
644 | evt.$.x < html.$.clientWidth ) { | ||
645 | // Start to build the text range. | ||
646 | var textRng = body.$.createTextRange(); | ||
647 | moveRangeToPoint( textRng, evt.$.clientX, evt.$.clientY ); | ||
648 | |||
649 | // Records the dragging start of the above text range. | ||
650 | var startRng = textRng.duplicate(); | ||
651 | |||
652 | html.on( 'mousemove', onHover ); | ||
653 | outerDoc.on( 'mouseup', onSelectEnd ); | ||
654 | html.on( 'mouseup', onSelectEnd ); | ||
655 | } | ||
656 | } ); | ||
657 | } | ||
658 | |||
659 | // It's much simpler for IE8+, we just need to reselect the reported range. | ||
660 | // This hack does not work on IE>=11 because there's no old selection&range APIs. | ||
661 | if ( CKEDITOR.env.version > 7 && CKEDITOR.env.version < 11 ) { | ||
662 | html.on( 'mousedown', function( evt ) { | ||
663 | if ( evt.data.getTarget().is( 'html' ) ) { | ||
664 | // Limit the text selection mouse move inside of editable. (#9715) | ||
665 | outerDoc.on( 'mouseup', onSelectEnd ); | ||
666 | html.on( 'mouseup', onSelectEnd ); | ||
667 | } | ||
668 | } ); | ||
669 | } | ||
670 | } | ||
671 | } | ||
672 | |||
673 | // We check the selection change: | ||
674 | // 1. Upon "selectionchange" event from the editable element. (which might be faked event fired by our code) | ||
675 | // 2. After the accomplish of keyboard and mouse events. | ||
676 | editable.attachListener( editable, 'selectionchange', checkSelectionChange, editor ); | ||
677 | editable.attachListener( editable, 'keyup', checkSelectionChangeTimeout, editor ); | ||
678 | // Always fire the selection change on focus gain. | ||
679 | // On Webkit do this on DOMFocusIn, because the selection is unlocked on it too and | ||
680 | // we need synchronization between those listeners to not lost cached editor._.previousActive property | ||
681 | // (which is updated on selectionCheck). | ||
682 | editable.attachListener( editable, CKEDITOR.env.webkit ? 'DOMFocusIn' : 'focus', function() { | ||
683 | editor.forceNextSelectionCheck(); | ||
684 | editor.selectionChange( 1 ); | ||
685 | } ); | ||
686 | |||
687 | // #9699: On Webkit&Gecko in inline editor we have to check selection when it was changed | ||
688 | // by dragging and releasing mouse button outside editable. Dragging (mousedown) | ||
689 | // has to be initialized in editable, but for mouseup we listen on document element. | ||
690 | if ( isInline && ( CKEDITOR.env.webkit || CKEDITOR.env.gecko ) ) { | ||
691 | var mouseDown; | ||
692 | editable.attachListener( editable, 'mousedown', function() { | ||
693 | mouseDown = 1; | ||
694 | } ); | ||
695 | editable.attachListener( doc.getDocumentElement(), 'mouseup', function() { | ||
696 | if ( mouseDown ) | ||
697 | checkSelectionChangeTimeout.call( editor ); | ||
698 | mouseDown = 0; | ||
699 | } ); | ||
700 | } | ||
701 | // In all other cases listen on simple mouseup over editable, as we did before #9699. | ||
702 | // | ||
703 | // Use document instead of editable in non-IEs for observing mouseup | ||
704 | // since editable won't fire the event if selection process started within iframe and ended out | ||
705 | // of the editor (#9851). | ||
706 | else { | ||
707 | editable.attachListener( CKEDITOR.env.ie ? editable : doc.getDocumentElement(), 'mouseup', checkSelectionChangeTimeout, editor ); | ||
708 | } | ||
709 | |||
710 | if ( CKEDITOR.env.webkit ) { | ||
711 | // Before keystroke is handled by editor, check to remove the filling char. | ||
712 | editable.attachListener( doc, 'keydown', function( evt ) { | ||
713 | var key = evt.data.getKey(); | ||
714 | // Remove the filling char before some keys get | ||
715 | // executed, so they'll not get blocked by it. | ||
716 | switch ( key ) { | ||
717 | case 13: // ENTER | ||
718 | case 33: // PAGEUP | ||
719 | case 34: // PAGEDOWN | ||
720 | case 35: // HOME | ||
721 | case 36: // END | ||
722 | case 37: // LEFT-ARROW | ||
723 | case 39: // RIGHT-ARROW | ||
724 | case 8: // BACKSPACE | ||
725 | case 45: // INS | ||
726 | case 46: // DEl | ||
727 | removeFillingChar( editable ); | ||
728 | } | ||
729 | |||
730 | }, null, null, -1 ); | ||
731 | } | ||
732 | |||
733 | // Automatically select non-editable element when navigating into | ||
734 | // it by left/right or backspace/del keys. | ||
735 | editable.attachListener( editable, 'keydown', getOnKeyDownListener( editor ), null, null, -1 ); | ||
736 | |||
737 | function moveRangeToPoint( range, x, y ) { | ||
738 | // Error prune in IE7. (#9034, #9110) | ||
739 | try { | ||
740 | range.moveToPoint( x, y ); | ||
741 | } catch ( e ) {} | ||
742 | } | ||
743 | |||
744 | function removeListeners() { | ||
745 | outerDoc.removeListener( 'mouseup', onSelectEnd ); | ||
746 | html.removeListener( 'mouseup', onSelectEnd ); | ||
747 | } | ||
748 | |||
749 | function onSelectEnd() { | ||
750 | removeListeners(); | ||
751 | |||
752 | // The event is not fired when clicking on the scrollbars, | ||
753 | // so we can safely check the following to understand | ||
754 | // whether the empty space following <body> has been clicked. | ||
755 | var sel = CKEDITOR.document.$.selection, | ||
756 | range = sel.createRange(); | ||
757 | |||
758 | // The selection range is reported on host, but actually it should applies to the content doc. | ||
759 | if ( sel.type != 'None' && range.parentElement().ownerDocument == doc.$ ) | ||
760 | range.select(); | ||
761 | } | ||
762 | } ); | ||
763 | |||
764 | editor.on( 'setData', function() { | ||
765 | // Invalidate locked selection when unloading DOM. | ||
766 | // (#9521, #5217#comment:32 and #11500#comment:11) | ||
767 | editor.unlockSelection(); | ||
768 | |||
769 | // Webkit's selection will mess up after the data loading. | ||
770 | if ( CKEDITOR.env.webkit ) | ||
771 | clearSelection(); | ||
772 | } ); | ||
773 | |||
774 | // Catch all the cases which above setData listener couldn't catch. | ||
775 | // For example: switching to source mode and destroying editor. | ||
776 | editor.on( 'contentDomUnload', function() { | ||
777 | editor.unlockSelection(); | ||
778 | } ); | ||
779 | |||
780 | // IE9 might cease to work if there's an object selection inside the iframe (#7639). | ||
781 | if ( CKEDITOR.env.ie9Compat ) | ||
782 | editor.on( 'beforeDestroy', clearSelection, null, null, 9 ); | ||
783 | |||
784 | // Check selection change on data reload. | ||
785 | editor.on( 'dataReady', function() { | ||
786 | // Clean up fake selection after setting data. | ||
787 | delete editor._.fakeSelection; | ||
788 | delete editor._.hiddenSelectionContainer; | ||
789 | |||
790 | editor.selectionChange( 1 ); | ||
791 | } ); | ||
792 | |||
793 | // When loaded data are ready check whether hidden selection container was not loaded. | ||
794 | editor.on( 'loadSnapshot', function() { | ||
795 | var isElement = CKEDITOR.dom.walker.nodeType( CKEDITOR.NODE_ELEMENT ), | ||
796 | // TODO replace with el.find() which will be introduced in #9764, | ||
797 | // because it may happen that hidden sel container won't be the last element. | ||
798 | last = editor.editable().getLast( isElement ); | ||
799 | |||
800 | if ( last && last.hasAttribute( 'data-cke-hidden-sel' ) ) { | ||
801 | last.remove(); | ||
802 | |||
803 | // Firefox does a very unfortunate thing. When a non-editable element is the only | ||
804 | // element in the editable, when we remove the hidden selection container, Firefox | ||
805 | // will insert a bogus <br> at the beginning of the editable... | ||
806 | // See: https://bugzilla.mozilla.org/show_bug.cgi?id=911201 | ||
807 | // | ||
808 | // This behavior is never desired because this <br> pushes the content lower, but in | ||
809 | // this case it is especially dangerous, because it happens when a bookmark is being restored. | ||
810 | // Since this <br> is inserted at the beginning it changes indexes and thus breaks the bookmark2 | ||
811 | // what results in errors. | ||
812 | // | ||
813 | // So... let's revert what Firefox broke. | ||
814 | if ( CKEDITOR.env.gecko ) { | ||
815 | var first = editor.editable().getFirst( isElement ); | ||
816 | if ( first && first.is( 'br' ) && first.getAttribute( '_moz_editor_bogus_node' ) ) { | ||
817 | first.remove(); | ||
818 | } | ||
819 | } | ||
820 | } | ||
821 | }, null, null, 100 ); | ||
822 | |||
823 | editor.on( 'key', function( evt ) { | ||
824 | if ( editor.mode != 'wysiwyg' ) | ||
825 | return; | ||
826 | |||
827 | var sel = editor.getSelection(); | ||
828 | if ( !sel.isFake ) | ||
829 | return; | ||
830 | |||
831 | var handler = fakeSelectionDefaultKeystrokeHandlers[ evt.data.keyCode ]; | ||
832 | if ( handler ) | ||
833 | return handler( { editor: editor, selected: sel.getSelectedElement(), selection: sel, keyEvent: evt } ); | ||
834 | } ); | ||
835 | |||
836 | function clearSelection() { | ||
837 | var sel = editor.getSelection(); | ||
838 | sel && sel.removeAllRanges(); | ||
839 | } | ||
840 | } ); | ||
841 | |||
842 | CKEDITOR.on( 'instanceReady', function( evt ) { | ||
843 | var editor = evt.editor, | ||
844 | fillingCharBefore, | ||
845 | selectionBookmark; | ||
846 | |||
847 | // On WebKit only, we need a special "filling" char on some situations | ||
848 | // (#1272). Here we set the events that should invalidate that char. | ||
849 | if ( CKEDITOR.env.webkit ) { | ||
850 | editor.on( 'selectionChange', function() { | ||
851 | checkFillingChar( editor.editable() ); | ||
852 | }, null, null, -1 ); | ||
853 | editor.on( 'beforeSetMode', function() { | ||
854 | removeFillingChar( editor.editable() ); | ||
855 | }, null, null, -1 ); | ||
856 | |||
857 | editor.on( 'beforeUndoImage', beforeData ); | ||
858 | editor.on( 'afterUndoImage', afterData ); | ||
859 | editor.on( 'beforeGetData', beforeData, null, null, 0 ); | ||
860 | editor.on( 'getData', afterData ); | ||
861 | } | ||
862 | |||
863 | function beforeData() { | ||
864 | var editable = editor.editable(); | ||
865 | if ( !editable ) | ||
866 | return; | ||
867 | |||
868 | var fillingChar = getFillingChar( editable ); | ||
869 | |||
870 | if ( fillingChar ) { | ||
871 | // If the selection's focus or anchor is located in the filling char's text node, | ||
872 | // we need to restore the selection in afterData, because it will be lost | ||
873 | // when setting text. Selection's direction must be preserved. | ||
874 | // (#7437, #12489, #12491 comment:3) | ||
875 | var sel = editor.document.$.getSelection(); | ||
876 | if ( sel.type != 'None' && ( sel.anchorNode == fillingChar.$ || sel.focusNode == fillingChar.$ ) ) | ||
877 | selectionBookmark = createNativeSelectionBookmark( sel ); | ||
878 | |||
879 | fillingCharBefore = fillingChar.getText(); | ||
880 | fillingChar.setText( replaceFillingChar( fillingCharBefore ) ); | ||
881 | } | ||
882 | } | ||
883 | |||
884 | function afterData() { | ||
885 | var editable = editor.editable(); | ||
886 | if ( !editable ) | ||
887 | return; | ||
888 | |||
889 | var fillingChar = getFillingChar( editable ); | ||
890 | |||
891 | if ( fillingChar ) { | ||
892 | fillingChar.setText( fillingCharBefore ); | ||
893 | |||
894 | if ( selectionBookmark ) { | ||
895 | moveNativeSelectionToBookmark( editor.document.$, selectionBookmark ); | ||
896 | selectionBookmark = null; | ||
897 | } | ||
898 | } | ||
899 | } | ||
900 | } ); | ||
901 | |||
902 | /** | ||
903 | * Check the selection change in editor and potentially fires | ||
904 | * the {@link CKEDITOR.editor#event-selectionChange} event. | ||
905 | * | ||
906 | * @method | ||
907 | * @member CKEDITOR.editor | ||
908 | * @param {Boolean} [checkNow=false] Force the check to happen immediately | ||
909 | * instead of coming with a timeout delay (default). | ||
910 | */ | ||
911 | CKEDITOR.editor.prototype.selectionChange = function( checkNow ) { | ||
912 | ( checkNow ? checkSelectionChange : checkSelectionChangeTimeout ).call( this ); | ||
913 | }; | ||
914 | |||
915 | /** | ||
916 | * Retrieve the editor selection in scope of editable element. | ||
917 | * | ||
918 | * **Note:** Since the native browser selection provides only one single | ||
919 | * selection at a time per document, so if editor's editable element has lost focus, | ||
920 | * this method will return a null value unless the {@link CKEDITOR.editor#lockSelection} | ||
921 | * has been called beforehand so the saved selection is retrieved. | ||
922 | * | ||
923 | * var selection = CKEDITOR.instances.editor1.getSelection(); | ||
924 | * alert( selection.getType() ); | ||
925 | * | ||
926 | * @method | ||
927 | * @member CKEDITOR.editor | ||
928 | * @param {Boolean} forceRealSelection Return real selection, instead of saved or fake one. | ||
929 | * @returns {CKEDITOR.dom.selection} A selection object or null if not available for the moment. | ||
930 | */ | ||
931 | CKEDITOR.editor.prototype.getSelection = function( forceRealSelection ) { | ||
932 | |||
933 | // Check if there exists a locked or fake selection. | ||
934 | if ( ( this._.savedSelection || this._.fakeSelection ) && !forceRealSelection ) | ||
935 | return this._.savedSelection || this._.fakeSelection; | ||
936 | |||
937 | // Editable element might be absent or editor might not be in a wysiwyg mode. | ||
938 | var editable = this.editable(); | ||
939 | return editable && this.mode == 'wysiwyg' ? new CKEDITOR.dom.selection( editable ) : null; | ||
940 | }; | ||
941 | |||
942 | /** | ||
943 | * Locks the selection made in the editor in order to make it possible to | ||
944 | * manipulate it without browser interference. A locked selection is | ||
945 | * cached and remains unchanged until it is released with the | ||
946 | * {@link CKEDITOR.editor#unlockSelection} method. | ||
947 | * | ||
948 | * @method | ||
949 | * @member CKEDITOR.editor | ||
950 | * @param {CKEDITOR.dom.selection} [sel] Specify the selection to be locked. | ||
951 | * @returns {Boolean} `true` if selection was locked. | ||
952 | */ | ||
953 | CKEDITOR.editor.prototype.lockSelection = function( sel ) { | ||
954 | sel = sel || this.getSelection( 1 ); | ||
955 | if ( sel.getType() != CKEDITOR.SELECTION_NONE ) { | ||
956 | !sel.isLocked && sel.lock(); | ||
957 | this._.savedSelection = sel; | ||
958 | return true; | ||
959 | } | ||
960 | return false; | ||
961 | }; | ||
962 | |||
963 | /** | ||
964 | * Unlocks the selection made in the editor and locked with the | ||
965 | * {@link CKEDITOR.editor#unlockSelection} method. An unlocked selection | ||
966 | * is no longer cached and can be changed. | ||
967 | * | ||
968 | * @method | ||
969 | * @member CKEDITOR.editor | ||
970 | * @param {Boolean} [restore] If set to `true`, the selection is | ||
971 | * restored back to the selection saved earlier by using the | ||
972 | * {@link CKEDITOR.dom.selection#lock} method. | ||
973 | */ | ||
974 | CKEDITOR.editor.prototype.unlockSelection = function( restore ) { | ||
975 | var sel = this._.savedSelection; | ||
976 | if ( sel ) { | ||
977 | sel.unlock( restore ); | ||
978 | delete this._.savedSelection; | ||
979 | return true; | ||
980 | } | ||
981 | |||
982 | return false; | ||
983 | }; | ||
984 | |||
985 | /** | ||
986 | * @method | ||
987 | * @member CKEDITOR.editor | ||
988 | * @todo | ||
989 | */ | ||
990 | CKEDITOR.editor.prototype.forceNextSelectionCheck = function() { | ||
991 | delete this._.selectionPreviousPath; | ||
992 | }; | ||
993 | |||
994 | /** | ||
995 | * Gets the current selection in context of the document's body element. | ||
996 | * | ||
997 | * var selection = CKEDITOR.instances.editor1.document.getSelection(); | ||
998 | * alert( selection.getType() ); | ||
999 | * | ||
1000 | * @method | ||
1001 | * @member CKEDITOR.dom.document | ||
1002 | * @returns {CKEDITOR.dom.selection} A selection object. | ||
1003 | */ | ||
1004 | CKEDITOR.dom.document.prototype.getSelection = function() { | ||
1005 | return new CKEDITOR.dom.selection( this ); | ||
1006 | }; | ||
1007 | |||
1008 | /** | ||
1009 | * Select this range as the only one with {@link CKEDITOR.dom.selection#selectRanges}. | ||
1010 | * | ||
1011 | * @method | ||
1012 | * @returns {CKEDITOR.dom.selection} | ||
1013 | * @member CKEDITOR.dom.range | ||
1014 | */ | ||
1015 | CKEDITOR.dom.range.prototype.select = function() { | ||
1016 | var sel = this.root instanceof CKEDITOR.editable ? this.root.editor.getSelection() : new CKEDITOR.dom.selection( this.root ); | ||
1017 | |||
1018 | sel.selectRanges( [ this ] ); | ||
1019 | |||
1020 | return sel; | ||
1021 | }; | ||
1022 | |||
1023 | /** | ||
1024 | * No selection. | ||
1025 | * | ||
1026 | * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_NONE ) | ||
1027 | * alert( 'Nothing is selected' ); | ||
1028 | * | ||
1029 | * @readonly | ||
1030 | * @property {Number} [=1] | ||
1031 | * @member CKEDITOR | ||
1032 | */ | ||
1033 | CKEDITOR.SELECTION_NONE = 1; | ||
1034 | |||
1035 | /** | ||
1036 | * A text or a collapsed selection. | ||
1037 | * | ||
1038 | * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT ) | ||
1039 | * alert( 'A text is selected' ); | ||
1040 | * | ||
1041 | * @readonly | ||
1042 | * @property {Number} [=2] | ||
1043 | * @member CKEDITOR | ||
1044 | */ | ||
1045 | CKEDITOR.SELECTION_TEXT = 2; | ||
1046 | |||
1047 | /** | ||
1048 | * Element selection. | ||
1049 | * | ||
1050 | * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_ELEMENT ) | ||
1051 | * alert( 'An element is selected' ); | ||
1052 | * | ||
1053 | * @readonly | ||
1054 | * @property {Number} [=3] | ||
1055 | * @member CKEDITOR | ||
1056 | */ | ||
1057 | CKEDITOR.SELECTION_ELEMENT = 3; | ||
1058 | |||
1059 | var isMSSelection = typeof window.getSelection != 'function', | ||
1060 | nextRev = 1; | ||
1061 | |||
1062 | /** | ||
1063 | * Manipulates the selection within a DOM element. If the current browser selection | ||
1064 | * spans outside of the element, an empty selection object is returned. | ||
1065 | * | ||
1066 | * Despite the fact that selection's constructor allows to create selection instances, | ||
1067 | * usually it's better to get selection from the editor instance: | ||
1068 | * | ||
1069 | * var sel = editor.getSelection(); | ||
1070 | * | ||
1071 | * See {@link CKEDITOR.editor#getSelection}. | ||
1072 | * | ||
1073 | * @class | ||
1074 | * @constructor Creates a selection class instance. | ||
1075 | * | ||
1076 | * // Selection scoped in document. | ||
1077 | * var sel = new CKEDITOR.dom.selection( CKEDITOR.document ); | ||
1078 | * | ||
1079 | * // Selection scoped in element with 'editable' id. | ||
1080 | * var sel = new CKEDITOR.dom.selection( CKEDITOR.document.getById( 'editable' ) ); | ||
1081 | * | ||
1082 | * // Cloning selection. | ||
1083 | * var clone = new CKEDITOR.dom.selection( sel ); | ||
1084 | * | ||
1085 | * @param {CKEDITOR.dom.document/CKEDITOR.dom.element/CKEDITOR.dom.selection} target | ||
1086 | * The DOM document/element that the DOM selection is restrained to. Only selection which spans | ||
1087 | * within the target element is considered as valid. | ||
1088 | * | ||
1089 | * If {@link CKEDITOR.dom.selection} is passed, then its clone will be created. | ||
1090 | */ | ||
1091 | CKEDITOR.dom.selection = function( target ) { | ||
1092 | // Target is a selection - clone it. | ||
1093 | if ( target instanceof CKEDITOR.dom.selection ) { | ||
1094 | var selection = target; | ||
1095 | target = target.root; | ||
1096 | } | ||
1097 | |||
1098 | var isElement = target instanceof CKEDITOR.dom.element, | ||
1099 | root; | ||
1100 | |||
1101 | this.rev = selection ? selection.rev : nextRev++; | ||
1102 | this.document = target instanceof CKEDITOR.dom.document ? target : target.getDocument(); | ||
1103 | this.root = root = isElement ? target : this.document.getBody(); | ||
1104 | this.isLocked = 0; | ||
1105 | this._ = { | ||
1106 | cache: {} | ||
1107 | }; | ||
1108 | |||
1109 | // Clone selection. | ||
1110 | if ( selection ) { | ||
1111 | CKEDITOR.tools.extend( this._.cache, selection._.cache ); | ||
1112 | this.isFake = selection.isFake; | ||
1113 | this.isLocked = selection.isLocked; | ||
1114 | return this; | ||
1115 | } | ||
1116 | |||
1117 | // Check whether browser focus is really inside of the editable element. | ||
1118 | |||
1119 | var nativeSel = this.getNative(), | ||
1120 | rangeParent, | ||
1121 | range; | ||
1122 | |||
1123 | if ( nativeSel ) { | ||
1124 | if ( nativeSel.getRangeAt ) { | ||
1125 | range = nativeSel.rangeCount && nativeSel.getRangeAt( 0 ); | ||
1126 | rangeParent = range && new CKEDITOR.dom.node( range.commonAncestorContainer ); | ||
1127 | } | ||
1128 | // For old IEs. | ||
1129 | else { | ||
1130 | // Sometimes, mostly when selection is close to the table or hr, | ||
1131 | // IE throws "Unspecified error". | ||
1132 | try { | ||
1133 | range = nativeSel.createRange(); | ||
1134 | } catch ( err ) {} | ||
1135 | rangeParent = range && CKEDITOR.dom.element.get( range.item && range.item( 0 ) || range.parentElement() ); | ||
1136 | } | ||
1137 | } | ||
1138 | |||
1139 | // Selection out of concerned range, empty the selection. | ||
1140 | // TODO check whether this condition cannot be reverted to its old | ||
1141 | // form (commented out) after we closed #10438. | ||
1142 | //if ( !( rangeParent && ( root.equals( rangeParent ) || root.contains( rangeParent ) ) ) ) { | ||
1143 | if ( !( | ||
1144 | rangeParent && | ||
1145 | ( rangeParent.type == CKEDITOR.NODE_ELEMENT || rangeParent.type == CKEDITOR.NODE_TEXT ) && | ||
1146 | ( this.root.equals( rangeParent ) || this.root.contains( rangeParent ) ) | ||
1147 | ) ) { | ||
1148 | |||
1149 | this._.cache.type = CKEDITOR.SELECTION_NONE; | ||
1150 | this._.cache.startElement = null; | ||
1151 | this._.cache.selectedElement = null; | ||
1152 | this._.cache.selectedText = ''; | ||
1153 | this._.cache.ranges = new CKEDITOR.dom.rangeList(); | ||
1154 | } | ||
1155 | |||
1156 | return this; | ||
1157 | }; | ||
1158 | |||
1159 | var styleObjectElements = { img: 1, hr: 1, li: 1, table: 1, tr: 1, td: 1, th: 1, embed: 1, object: 1, ol: 1, ul: 1, | ||
1160 | a: 1, input: 1, form: 1, select: 1, textarea: 1, button: 1, fieldset: 1, thead: 1, tfoot: 1 }; | ||
1161 | |||
1162 | CKEDITOR.dom.selection.prototype = { | ||
1163 | /** | ||
1164 | * Gets the native selection object from the browser. | ||
1165 | * | ||
1166 | * var selection = editor.getSelection().getNative(); | ||
1167 | * | ||
1168 | * @returns {Object} The native browser selection object. | ||
1169 | */ | ||
1170 | getNative: function() { | ||
1171 | if ( this._.cache.nativeSel !== undefined ) | ||
1172 | return this._.cache.nativeSel; | ||
1173 | |||
1174 | return ( this._.cache.nativeSel = isMSSelection ? this.document.$.selection : this.document.getWindow().$.getSelection() ); | ||
1175 | }, | ||
1176 | |||
1177 | /** | ||
1178 | * Gets the type of the current selection. The following values are | ||
1179 | * available: | ||
1180 | * | ||
1181 | * * {@link CKEDITOR#SELECTION_NONE} (1): No selection. | ||
1182 | * * {@link CKEDITOR#SELECTION_TEXT} (2): A text or a collapsed selection is selected. | ||
1183 | * * {@link CKEDITOR#SELECTION_ELEMENT} (3): An element is selected. | ||
1184 | * | ||
1185 | * Example: | ||
1186 | * | ||
1187 | * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT ) | ||
1188 | * alert( 'A text is selected' ); | ||
1189 | * | ||
1190 | * @method | ||
1191 | * @returns {Number} One of the following constant values: {@link CKEDITOR#SELECTION_NONE}, | ||
1192 | * {@link CKEDITOR#SELECTION_TEXT} or {@link CKEDITOR#SELECTION_ELEMENT}. | ||
1193 | */ | ||
1194 | getType: isMSSelection ? | ||
1195 | function() { | ||
1196 | var cache = this._.cache; | ||
1197 | if ( cache.type ) | ||
1198 | return cache.type; | ||
1199 | |||
1200 | var type = CKEDITOR.SELECTION_NONE; | ||
1201 | |||
1202 | try { | ||
1203 | var sel = this.getNative(), | ||
1204 | ieType = sel.type; | ||
1205 | |||
1206 | if ( ieType == 'Text' ) | ||
1207 | type = CKEDITOR.SELECTION_TEXT; | ||
1208 | |||
1209 | if ( ieType == 'Control' ) | ||
1210 | type = CKEDITOR.SELECTION_ELEMENT; | ||
1211 | |||
1212 | // It is possible that we can still get a text range | ||
1213 | // object even when type == 'None' is returned by IE. | ||
1214 | // So we'd better check the object returned by | ||
1215 | // createRange() rather than by looking at the type. | ||
1216 | if ( sel.createRange().parentElement() ) | ||
1217 | type = CKEDITOR.SELECTION_TEXT; | ||
1218 | } catch ( e ) {} | ||
1219 | |||
1220 | return ( cache.type = type ); | ||
1221 | } : function() { | ||
1222 | var cache = this._.cache; | ||
1223 | if ( cache.type ) | ||
1224 | return cache.type; | ||
1225 | |||
1226 | var type = CKEDITOR.SELECTION_TEXT; | ||
1227 | |||
1228 | var sel = this.getNative(); | ||
1229 | |||
1230 | if ( !( sel && sel.rangeCount ) ) | ||
1231 | type = CKEDITOR.SELECTION_NONE; | ||
1232 | else if ( sel.rangeCount == 1 ) { | ||
1233 | // Check if the actual selection is a control (IMG, | ||
1234 | // TABLE, HR, etc...). | ||
1235 | |||
1236 | var range = sel.getRangeAt( 0 ), | ||
1237 | startContainer = range.startContainer; | ||
1238 | |||
1239 | if ( startContainer == range.endContainer && startContainer.nodeType == 1 && | ||
1240 | ( range.endOffset - range.startOffset ) == 1 && | ||
1241 | styleObjectElements[ startContainer.childNodes[ range.startOffset ].nodeName.toLowerCase() ] ) { | ||
1242 | type = CKEDITOR.SELECTION_ELEMENT; | ||
1243 | } | ||
1244 | |||
1245 | } | ||
1246 | |||
1247 | return ( cache.type = type ); | ||
1248 | }, | ||
1249 | |||
1250 | /** | ||
1251 | * Retrieves the {@link CKEDITOR.dom.range} instances that represent the current selection. | ||
1252 | * | ||
1253 | * Note: Some browsers return multiple ranges even for a continuous selection. Firefox, for example, returns | ||
1254 | * one range for each table cell when one or more table rows are selected. | ||
1255 | * | ||
1256 | * var ranges = selection.getRanges(); | ||
1257 | * alert( ranges.length ); | ||
1258 | * | ||
1259 | * @method | ||
1260 | * @param {Boolean} [onlyEditables] If set to `true`, this function retrives editable ranges only. | ||
1261 | * @returns {Array} Range instances that represent the current selection. | ||
1262 | */ | ||
1263 | getRanges: ( function() { | ||
1264 | var func = isMSSelection ? ( function() { | ||
1265 | function getNodeIndex( node ) { | ||
1266 | return new CKEDITOR.dom.node( node ).getIndex(); | ||
1267 | } | ||
1268 | |||
1269 | // Finds the container and offset for a specific boundary | ||
1270 | // of an IE range. | ||
1271 | var getBoundaryInformation = function( range, start ) { | ||
1272 | // Creates a collapsed range at the requested boundary. | ||
1273 | range = range.duplicate(); | ||
1274 | range.collapse( start ); | ||
1275 | |||
1276 | // Gets the element that encloses the range entirely. | ||
1277 | var parent = range.parentElement(); | ||
1278 | |||
1279 | // Empty parent element, e.g. <i>^</i> | ||
1280 | if ( !parent.hasChildNodes() ) | ||
1281 | return { container: parent, offset: 0 }; | ||
1282 | |||
1283 | var siblings = parent.children, | ||
1284 | child, sibling, | ||
1285 | testRange = range.duplicate(), | ||
1286 | startIndex = 0, | ||
1287 | endIndex = siblings.length - 1, | ||
1288 | index = -1, | ||
1289 | position, distance, container; | ||
1290 | |||
1291 | // Binary search over all element childs to test the range to see whether | ||
1292 | // range is right on the boundary of one element. | ||
1293 | while ( startIndex <= endIndex ) { | ||
1294 | index = Math.floor( ( startIndex + endIndex ) / 2 ); | ||
1295 | child = siblings[ index ]; | ||
1296 | testRange.moveToElementText( child ); | ||
1297 | position = testRange.compareEndPoints( 'StartToStart', range ); | ||
1298 | |||
1299 | if ( position > 0 ) | ||
1300 | endIndex = index - 1; | ||
1301 | else if ( position < 0 ) | ||
1302 | startIndex = index + 1; | ||
1303 | else | ||
1304 | return { container: parent, offset: getNodeIndex( child ) }; | ||
1305 | } | ||
1306 | |||
1307 | // All childs are text nodes, | ||
1308 | // or to the right hand of test range are all text nodes. (#6992) | ||
1309 | if ( index == -1 || index == siblings.length - 1 && position < 0 ) { | ||
1310 | // Adapt test range to embrace the entire parent contents. | ||
1311 | testRange.moveToElementText( parent ); | ||
1312 | testRange.setEndPoint( 'StartToStart', range ); | ||
1313 | |||
1314 | // IE report line break as CRLF with range.text but | ||
1315 | // only LF with textnode.nodeValue, normalize them to avoid | ||
1316 | // breaking character counting logic below. (#3949) | ||
1317 | distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length; | ||
1318 | |||
1319 | siblings = parent.childNodes; | ||
1320 | |||
1321 | // Actual range anchor right beside test range at the boundary of text node. | ||
1322 | if ( !distance ) { | ||
1323 | child = siblings[ siblings.length - 1 ]; | ||
1324 | |||
1325 | if ( child.nodeType != CKEDITOR.NODE_TEXT ) | ||
1326 | return { container: parent, offset: siblings.length }; | ||
1327 | else | ||
1328 | return { container: child, offset: child.nodeValue.length }; | ||
1329 | } | ||
1330 | |||
1331 | // Start the measuring until distance overflows, meanwhile count the text nodes. | ||
1332 | var i = siblings.length; | ||
1333 | while ( distance > 0 && i > 0 ) { | ||
1334 | sibling = siblings[ --i ]; | ||
1335 | if ( sibling.nodeType == CKEDITOR.NODE_TEXT ) { | ||
1336 | container = sibling; | ||
1337 | distance -= sibling.nodeValue.length; | ||
1338 | } | ||
1339 | } | ||
1340 | |||
1341 | return { container: container, offset: -distance }; | ||
1342 | } | ||
1343 | // Test range was one offset beyond OR behind the anchored text node. | ||
1344 | else { | ||
1345 | // Adapt one side of test range to the actual range | ||
1346 | // for measuring the offset between them. | ||
1347 | testRange.collapse( position > 0 ? true : false ); | ||
1348 | testRange.setEndPoint( position > 0 ? 'StartToStart' : 'EndToStart', range ); | ||
1349 | |||
1350 | // IE report line break as CRLF with range.text but | ||
1351 | // only LF with textnode.nodeValue, normalize them to avoid | ||
1352 | // breaking character counting logic below. (#3949) | ||
1353 | distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length; | ||
1354 | |||
1355 | // Actual range anchor right beside test range at the inner boundary of text node. | ||
1356 | if ( !distance ) | ||
1357 | return { container: parent, offset: getNodeIndex( child ) + ( position > 0 ? 0 : 1 ) }; | ||
1358 | |||
1359 | // Start the measuring until distance overflows, meanwhile count the text nodes. | ||
1360 | while ( distance > 0 ) { | ||
1361 | try { | ||
1362 | sibling = child[ position > 0 ? 'previousSibling' : 'nextSibling' ]; | ||
1363 | if ( sibling.nodeType == CKEDITOR.NODE_TEXT ) { | ||
1364 | distance -= sibling.nodeValue.length; | ||
1365 | container = sibling; | ||
1366 | } | ||
1367 | child = sibling; | ||
1368 | } | ||
1369 | // Measurement in IE could be somtimes wrong because of <select> element. (#4611) | ||
1370 | catch ( e ) { | ||
1371 | return { container: parent, offset: getNodeIndex( child ) }; | ||
1372 | } | ||
1373 | } | ||
1374 | |||
1375 | return { container: container, offset: position > 0 ? -distance : container.nodeValue.length + distance }; | ||
1376 | } | ||
1377 | }; | ||
1378 | |||
1379 | return function() { | ||
1380 | // IE doesn't have range support (in the W3C way), so we | ||
1381 | // need to do some magic to transform selections into | ||
1382 | // CKEDITOR.dom.range instances. | ||
1383 | |||
1384 | var sel = this.getNative(), | ||
1385 | nativeRange = sel && sel.createRange(), | ||
1386 | type = this.getType(), | ||
1387 | range; | ||
1388 | |||
1389 | if ( !sel ) | ||
1390 | return []; | ||
1391 | |||
1392 | if ( type == CKEDITOR.SELECTION_TEXT ) { | ||
1393 | range = new CKEDITOR.dom.range( this.root ); | ||
1394 | |||
1395 | var boundaryInfo = getBoundaryInformation( nativeRange, true ); | ||
1396 | range.setStart( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset ); | ||
1397 | |||
1398 | boundaryInfo = getBoundaryInformation( nativeRange ); | ||
1399 | range.setEnd( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset ); | ||
1400 | |||
1401 | // Correct an invalid IE range case on empty list item. (#5850) | ||
1402 | if ( range.endContainer.getPosition( range.startContainer ) & CKEDITOR.POSITION_PRECEDING && range.endOffset <= range.startContainer.getIndex() ) | ||
1403 | range.collapse(); | ||
1404 | |||
1405 | return [ range ]; | ||
1406 | } else if ( type == CKEDITOR.SELECTION_ELEMENT ) { | ||
1407 | var retval = []; | ||
1408 | |||
1409 | for ( var i = 0; i < nativeRange.length; i++ ) { | ||
1410 | var element = nativeRange.item( i ), | ||
1411 | parentElement = element.parentNode, | ||
1412 | j = 0; | ||
1413 | |||
1414 | range = new CKEDITOR.dom.range( this.root ); | ||
1415 | |||
1416 | for ( ; j < parentElement.childNodes.length && parentElement.childNodes[ j ] != element; j++ ) { | ||
1417 | |||
1418 | } | ||
1419 | |||
1420 | range.setStart( new CKEDITOR.dom.node( parentElement ), j ); | ||
1421 | range.setEnd( new CKEDITOR.dom.node( parentElement ), j + 1 ); | ||
1422 | retval.push( range ); | ||
1423 | } | ||
1424 | |||
1425 | return retval; | ||
1426 | } | ||
1427 | |||
1428 | return []; | ||
1429 | }; | ||
1430 | } )() : | ||
1431 | function() { | ||
1432 | // On browsers implementing the W3C range, we simply | ||
1433 | // tranform the native ranges in CKEDITOR.dom.range | ||
1434 | // instances. | ||
1435 | |||
1436 | var ranges = [], | ||
1437 | range, | ||
1438 | sel = this.getNative(); | ||
1439 | |||
1440 | if ( !sel ) | ||
1441 | return ranges; | ||
1442 | |||
1443 | for ( var i = 0; i < sel.rangeCount; i++ ) { | ||
1444 | var nativeRange = sel.getRangeAt( i ); | ||
1445 | |||
1446 | range = new CKEDITOR.dom.range( this.root ); | ||
1447 | |||
1448 | range.setStart( new CKEDITOR.dom.node( nativeRange.startContainer ), nativeRange.startOffset ); | ||
1449 | range.setEnd( new CKEDITOR.dom.node( nativeRange.endContainer ), nativeRange.endOffset ); | ||
1450 | ranges.push( range ); | ||
1451 | } | ||
1452 | return ranges; | ||
1453 | }; | ||
1454 | |||
1455 | return function( onlyEditables ) { | ||
1456 | var cache = this._.cache, | ||
1457 | ranges = cache.ranges; | ||
1458 | |||
1459 | if ( !ranges ) | ||
1460 | cache.ranges = ranges = new CKEDITOR.dom.rangeList( func.call( this ) ); | ||
1461 | |||
1462 | if ( !onlyEditables ) | ||
1463 | return ranges; | ||
1464 | |||
1465 | // Split range into multiple by read-only nodes. | ||
1466 | // Clone ranges array to avoid changing cached ranges (#11493). | ||
1467 | return extractEditableRanges( new CKEDITOR.dom.rangeList( ranges.slice() ) ); | ||
1468 | }; | ||
1469 | } )(), | ||
1470 | |||
1471 | /** | ||
1472 | * Gets the DOM element in which the selection starts. | ||
1473 | * | ||
1474 | * var element = editor.getSelection().getStartElement(); | ||
1475 | * alert( element.getName() ); | ||
1476 | * | ||
1477 | * @returns {CKEDITOR.dom.element} The element at the beginning of the selection. | ||
1478 | */ | ||
1479 | getStartElement: function() { | ||
1480 | var cache = this._.cache; | ||
1481 | if ( cache.startElement !== undefined ) | ||
1482 | return cache.startElement; | ||
1483 | |||
1484 | var node; | ||
1485 | |||
1486 | switch ( this.getType() ) { | ||
1487 | case CKEDITOR.SELECTION_ELEMENT: | ||
1488 | return this.getSelectedElement(); | ||
1489 | |||
1490 | case CKEDITOR.SELECTION_TEXT: | ||
1491 | |||
1492 | var range = this.getRanges()[ 0 ]; | ||
1493 | |||
1494 | if ( range ) { | ||
1495 | if ( !range.collapsed ) { | ||
1496 | range.optimize(); | ||
1497 | |||
1498 | // Decrease the range content to exclude particial | ||
1499 | // selected node on the start which doesn't have | ||
1500 | // visual impact. ( #3231 ) | ||
1501 | while ( 1 ) { | ||
1502 | var startContainer = range.startContainer, | ||
1503 | startOffset = range.startOffset; | ||
1504 | // Limit the fix only to non-block elements.(#3950) | ||
1505 | if ( startOffset == ( startContainer.getChildCount ? startContainer.getChildCount() : startContainer.getLength() ) && !startContainer.isBlockBoundary() ) | ||
1506 | range.setStartAfter( startContainer ); | ||
1507 | else | ||
1508 | break; | ||
1509 | } | ||
1510 | |||
1511 | node = range.startContainer; | ||
1512 | |||
1513 | if ( node.type != CKEDITOR.NODE_ELEMENT ) | ||
1514 | return node.getParent(); | ||
1515 | |||
1516 | node = node.getChild( range.startOffset ); | ||
1517 | |||
1518 | if ( !node || node.type != CKEDITOR.NODE_ELEMENT ) | ||
1519 | node = range.startContainer; | ||
1520 | else { | ||
1521 | var child = node.getFirst(); | ||
1522 | while ( child && child.type == CKEDITOR.NODE_ELEMENT ) { | ||
1523 | node = child; | ||
1524 | child = child.getFirst(); | ||
1525 | } | ||
1526 | } | ||
1527 | } else { | ||
1528 | node = range.startContainer; | ||
1529 | if ( node.type != CKEDITOR.NODE_ELEMENT ) | ||
1530 | node = node.getParent(); | ||
1531 | } | ||
1532 | |||
1533 | node = node.$; | ||
1534 | } | ||
1535 | } | ||
1536 | |||
1537 | return cache.startElement = ( node ? new CKEDITOR.dom.element( node ) : null ); | ||
1538 | }, | ||
1539 | |||
1540 | /** | ||
1541 | * Gets the currently selected element. | ||
1542 | * | ||
1543 | * var element = editor.getSelection().getSelectedElement(); | ||
1544 | * alert( element.getName() ); | ||
1545 | * | ||
1546 | * @returns {CKEDITOR.dom.element} The selected element. Null if no | ||
1547 | * selection is available or the selection type is not {@link CKEDITOR#SELECTION_ELEMENT}. | ||
1548 | */ | ||
1549 | getSelectedElement: function() { | ||
1550 | var cache = this._.cache; | ||
1551 | if ( cache.selectedElement !== undefined ) | ||
1552 | return cache.selectedElement; | ||
1553 | |||
1554 | var self = this; | ||
1555 | |||
1556 | var node = CKEDITOR.tools.tryThese( | ||
1557 | // Is it native IE control type selection? | ||
1558 | function() { | ||
1559 | return self.getNative().createRange().item( 0 ); | ||
1560 | }, | ||
1561 | // Figure it out by checking if there's a single enclosed | ||
1562 | // node of the range. | ||
1563 | function() { | ||
1564 | var range = self.getRanges()[ 0 ].clone(), | ||
1565 | enclosed, selected; | ||
1566 | |||
1567 | // Check first any enclosed element, e.g. <ul>[<li><a href="#">item</a></li>]</ul> | ||
1568 | for ( var i = 2; i && !( ( enclosed = range.getEnclosedNode() ) && ( enclosed.type == CKEDITOR.NODE_ELEMENT ) && styleObjectElements[ enclosed.getName() ] && ( selected = enclosed ) ); i-- ) { | ||
1569 | // Then check any deep wrapped element, e.g. [<b><i><img /></i></b>] | ||
1570 | range.shrink( CKEDITOR.SHRINK_ELEMENT ); | ||
1571 | } | ||
1572 | |||
1573 | return selected && selected.$; | ||
1574 | } | ||
1575 | ); | ||
1576 | |||
1577 | return cache.selectedElement = ( node ? new CKEDITOR.dom.element( node ) : null ); | ||
1578 | }, | ||
1579 | |||
1580 | /** | ||
1581 | * Retrieves the text contained within the range. An empty string is returned for non-text selection. | ||
1582 | * | ||
1583 | * var text = editor.getSelection().getSelectedText(); | ||
1584 | * alert( text ); | ||
1585 | * | ||
1586 | * @since 3.6.1 | ||
1587 | * @returns {String} A string of text within the current selection. | ||
1588 | */ | ||
1589 | getSelectedText: function() { | ||
1590 | var cache = this._.cache; | ||
1591 | if ( cache.selectedText !== undefined ) | ||
1592 | return cache.selectedText; | ||
1593 | |||
1594 | var nativeSel = this.getNative(), | ||
1595 | text = isMSSelection ? nativeSel.type == 'Control' ? '' : nativeSel.createRange().text : nativeSel.toString(); | ||
1596 | |||
1597 | return ( cache.selectedText = text ); | ||
1598 | }, | ||
1599 | |||
1600 | /** | ||
1601 | * Locks the selection made in the editor in order to make it possible to | ||
1602 | * manipulate it without browser interference. A locked selection is | ||
1603 | * cached and remains unchanged until it is released with the {@link #unlock} method. | ||
1604 | * | ||
1605 | * editor.getSelection().lock(); | ||
1606 | */ | ||
1607 | lock: function() { | ||
1608 | // Call all cacheable function. | ||
1609 | this.getRanges(); | ||
1610 | this.getStartElement(); | ||
1611 | this.getSelectedElement(); | ||
1612 | this.getSelectedText(); | ||
1613 | |||
1614 | // The native selection is not available when locked. | ||
1615 | this._.cache.nativeSel = null; | ||
1616 | |||
1617 | this.isLocked = 1; | ||
1618 | }, | ||
1619 | |||
1620 | /** | ||
1621 | * @todo | ||
1622 | */ | ||
1623 | unlock: function( restore ) { | ||
1624 | if ( !this.isLocked ) | ||
1625 | return; | ||
1626 | |||
1627 | if ( restore ) { | ||
1628 | var selectedElement = this.getSelectedElement(), | ||
1629 | ranges = !selectedElement && this.getRanges(), | ||
1630 | faked = this.isFake; | ||
1631 | } | ||
1632 | |||
1633 | this.isLocked = 0; | ||
1634 | this.reset(); | ||
1635 | |||
1636 | if ( restore ) { | ||
1637 | // Saved selection may be outdated (e.g. anchored in offline nodes). | ||
1638 | // Avoid getting broken by such. | ||
1639 | var common = selectedElement || ranges[ 0 ] && ranges[ 0 ].getCommonAncestor(); | ||
1640 | if ( !( common && common.getAscendant( 'body', 1 ) ) ) | ||
1641 | return; | ||
1642 | |||
1643 | if ( faked ) | ||
1644 | this.fake( selectedElement ); | ||
1645 | else if ( selectedElement ) | ||
1646 | this.selectElement( selectedElement ); | ||
1647 | else | ||
1648 | this.selectRanges( ranges ); | ||
1649 | } | ||
1650 | }, | ||
1651 | |||
1652 | /** | ||
1653 | * Clears the selection cache. | ||
1654 | * | ||
1655 | * editor.getSelection().reset(); | ||
1656 | */ | ||
1657 | reset: function() { | ||
1658 | this._.cache = {}; | ||
1659 | this.isFake = 0; | ||
1660 | |||
1661 | var editor = this.root.editor; | ||
1662 | |||
1663 | // Invalidate any fake selection available in the editor. | ||
1664 | if ( editor && editor._.fakeSelection ) { | ||
1665 | // Test whether this selection is the one that was | ||
1666 | // faked or its clone. | ||
1667 | if ( this.rev == editor._.fakeSelection.rev ) { | ||
1668 | delete editor._.fakeSelection; | ||
1669 | |||
1670 | removeHiddenSelectionContainer( editor ); | ||
1671 | } | ||
1672 | else { | ||
1673 | CKEDITOR.warn( 'selection-fake-reset' ); | ||
1674 | } | ||
1675 | } | ||
1676 | |||
1677 | this.rev = nextRev++; | ||
1678 | }, | ||
1679 | |||
1680 | /** | ||
1681 | * Makes the current selection of type {@link CKEDITOR#SELECTION_ELEMENT} by enclosing the specified element. | ||
1682 | * | ||
1683 | * var element = editor.document.getById( 'sampleElement' ); | ||
1684 | * editor.getSelection().selectElement( element ); | ||
1685 | * | ||
1686 | * @param {CKEDITOR.dom.element} element The element to enclose in the selection. | ||
1687 | */ | ||
1688 | selectElement: function( element ) { | ||
1689 | var range = new CKEDITOR.dom.range( this.root ); | ||
1690 | range.setStartBefore( element ); | ||
1691 | range.setEndAfter( element ); | ||
1692 | this.selectRanges( [ range ] ); | ||
1693 | }, | ||
1694 | |||
1695 | /** | ||
1696 | * Clears the original selection and adds the specified ranges to the document selection. | ||
1697 | * | ||
1698 | * // Move selection to the end of the editable element. | ||
1699 | * var range = editor.createRange(); | ||
1700 | * range.moveToPosition( range.root, CKEDITOR.POSITION_BEFORE_END ); | ||
1701 | * editor.getSelection().selectRanges( [ ranges ] ); | ||
1702 | * | ||
1703 | * @param {Array} ranges An array of {@link CKEDITOR.dom.range} instances | ||
1704 | * representing ranges to be added to the document. | ||
1705 | */ | ||
1706 | selectRanges: function( ranges ) { | ||
1707 | var editor = this.root.editor, | ||
1708 | hadHiddenSelectionContainer = editor && editor._.hiddenSelectionContainer; | ||
1709 | |||
1710 | this.reset(); | ||
1711 | |||
1712 | // Check if there's a hiddenSelectionContainer in editable at some index. | ||
1713 | // Some ranges may be anchored after the hiddenSelectionContainer and, | ||
1714 | // once the container is removed while resetting the selection, they | ||
1715 | // may need new endOffset (one element less within the range) (#11021 #11393). | ||
1716 | if ( hadHiddenSelectionContainer ) | ||
1717 | fixRangesAfterHiddenSelectionContainer( ranges, this.root ); | ||
1718 | |||
1719 | if ( !ranges.length ) | ||
1720 | return; | ||
1721 | |||
1722 | // Refresh the locked selection. | ||
1723 | if ( this.isLocked ) { | ||
1724 | // making a new DOM selection will force the focus on editable in certain situation, | ||
1725 | // we have to save the currently focused element for later recovery. | ||
1726 | var focused = CKEDITOR.document.getActive(); | ||
1727 | this.unlock(); | ||
1728 | this.selectRanges( ranges ); | ||
1729 | this.lock(); | ||
1730 | // Return to the previously focused element. | ||
1731 | focused && !focused.equals( this.root ) && focused.focus(); | ||
1732 | return; | ||
1733 | } | ||
1734 | |||
1735 | // Handle special case - automatic fake selection on non-editable elements. | ||
1736 | var receiver = getNonEditableFakeSelectionReceiver( ranges ); | ||
1737 | |||
1738 | if ( receiver ) { | ||
1739 | this.fake( receiver ); | ||
1740 | return; | ||
1741 | } | ||
1742 | |||
1743 | if ( isMSSelection ) { | ||
1744 | var notWhitespaces = CKEDITOR.dom.walker.whitespaces( true ), | ||
1745 | fillerTextRegex = /\ufeff|\u00a0/, | ||
1746 | nonCells = { table: 1, tbody: 1, tr: 1 }; | ||
1747 | |||
1748 | if ( ranges.length > 1 ) { | ||
1749 | // IE doesn't accept multiple ranges selection, so we join all into one. | ||
1750 | var last = ranges[ ranges.length - 1 ]; | ||
1751 | ranges[ 0 ].setEnd( last.endContainer, last.endOffset ); | ||
1752 | } | ||
1753 | |||
1754 | var range = ranges[ 0 ]; | ||
1755 | var collapsed = range.collapsed, | ||
1756 | isStartMarkerAlone, dummySpan, ieRange; | ||
1757 | |||
1758 | // Try to make a object selection, be careful with selecting phase element in IE | ||
1759 | // will breaks the selection in non-framed environment. | ||
1760 | var selected = range.getEnclosedNode(); | ||
1761 | if ( selected && selected.type == CKEDITOR.NODE_ELEMENT && selected.getName() in styleObjectElements && | ||
1762 | !( selected.is( 'a' ) && selected.getText() ) ) { | ||
1763 | try { | ||
1764 | ieRange = selected.$.createControlRange(); | ||
1765 | ieRange.addElement( selected.$ ); | ||
1766 | ieRange.select(); | ||
1767 | return; | ||
1768 | } catch ( er ) {} | ||
1769 | } | ||
1770 | |||
1771 | // IE doesn't support selecting the entire table row/cell, move the selection into cells, e.g. | ||
1772 | // <table><tbody><tr>[<td>cell</b></td>... => <table><tbody><tr><td>[cell</td>... | ||
1773 | if ( range.startContainer.type == CKEDITOR.NODE_ELEMENT && range.startContainer.getName() in nonCells || | ||
1774 | range.endContainer.type == CKEDITOR.NODE_ELEMENT && range.endContainer.getName() in nonCells ) { | ||
1775 | range.shrink( CKEDITOR.NODE_ELEMENT, true ); | ||
1776 | // The range might get collapsed (#7975). Update cached variable. | ||
1777 | collapsed = range.collapsed; | ||
1778 | } | ||
1779 | |||
1780 | var bookmark = range.createBookmark(); | ||
1781 | |||
1782 | // Create marker tags for the start and end boundaries. | ||
1783 | var startNode = bookmark.startNode; | ||
1784 | |||
1785 | var endNode; | ||
1786 | if ( !collapsed ) | ||
1787 | endNode = bookmark.endNode; | ||
1788 | |||
1789 | // Create the main range which will be used for the selection. | ||
1790 | ieRange = range.document.$.body.createTextRange(); | ||
1791 | |||
1792 | // Position the range at the start boundary. | ||
1793 | ieRange.moveToElementText( startNode.$ ); | ||
1794 | ieRange.moveStart( 'character', 1 ); | ||
1795 | |||
1796 | if ( endNode ) { | ||
1797 | // Create a tool range for the end. | ||
1798 | var ieRangeEnd = range.document.$.body.createTextRange(); | ||
1799 | |||
1800 | // Position the tool range at the end. | ||
1801 | ieRangeEnd.moveToElementText( endNode.$ ); | ||
1802 | |||
1803 | // Move the end boundary of the main range to match the tool range. | ||
1804 | ieRange.setEndPoint( 'EndToEnd', ieRangeEnd ); | ||
1805 | ieRange.moveEnd( 'character', -1 ); | ||
1806 | } else { | ||
1807 | // The isStartMarkerAlone logic comes from V2. It guarantees that the lines | ||
1808 | // will expand and that the cursor will be blinking on the right place. | ||
1809 | // Actually, we are using this flag just to avoid using this hack in all | ||
1810 | // situations, but just on those needed. | ||
1811 | var next = startNode.getNext( notWhitespaces ); | ||
1812 | var inPre = startNode.hasAscendant( 'pre' ); | ||
1813 | isStartMarkerAlone = ( !( next && next.getText && next.getText().match( fillerTextRegex ) ) && // already a filler there? | ||
1814 | ( inPre || !startNode.hasPrevious() || ( startNode.getPrevious().is && startNode.getPrevious().is( 'br' ) ) ) ); | ||
1815 | |||
1816 | // Append a temporary <span></span> before the selection. | ||
1817 | // This is needed to avoid IE destroying selections inside empty | ||
1818 | // inline elements, like <b></b> (#253). | ||
1819 | // It is also needed when placing the selection right after an inline | ||
1820 | // element to avoid the selection moving inside of it. | ||
1821 | dummySpan = range.document.createElement( 'span' ); | ||
1822 | dummySpan.setHtml( '' ); // Zero Width No-Break Space (U+FEFF). See #1359. | ||
1823 | dummySpan.insertBefore( startNode ); | ||
1824 | |||
1825 | if ( isStartMarkerAlone ) { | ||
1826 | // To expand empty blocks or line spaces after <br>, we need | ||
1827 | // instead to have any char, which will be later deleted using the | ||
1828 | // selection. | ||
1829 | // \ufeff = Zero Width No-Break Space (U+FEFF). (#1359) | ||
1830 | range.document.createText( '\ufeff' ).insertBefore( startNode ); | ||
1831 | } | ||
1832 | } | ||
1833 | |||
1834 | // Remove the markers (reset the position, because of the changes in the DOM tree). | ||
1835 | range.setStartBefore( startNode ); | ||
1836 | startNode.remove(); | ||
1837 | |||
1838 | if ( collapsed ) { | ||
1839 | if ( isStartMarkerAlone ) { | ||
1840 | // Move the selection start to include the temporary \ufeff. | ||
1841 | ieRange.moveStart( 'character', -1 ); | ||
1842 | |||
1843 | ieRange.select(); | ||
1844 | |||
1845 | // Remove our temporary stuff. | ||
1846 | range.document.$.selection.clear(); | ||
1847 | } else { | ||
1848 | ieRange.select(); | ||
1849 | } | ||
1850 | |||
1851 | range.moveToPosition( dummySpan, CKEDITOR.POSITION_BEFORE_START ); | ||
1852 | dummySpan.remove(); | ||
1853 | } else { | ||
1854 | range.setEndBefore( endNode ); | ||
1855 | endNode.remove(); | ||
1856 | ieRange.select(); | ||
1857 | } | ||
1858 | } else { | ||
1859 | var sel = this.getNative(); | ||
1860 | |||
1861 | // getNative() returns null if iframe is "display:none" in FF. (#6577) | ||
1862 | if ( !sel ) | ||
1863 | return; | ||
1864 | |||
1865 | this.removeAllRanges(); | ||
1866 | |||
1867 | for ( var i = 0; i < ranges.length; i++ ) { | ||
1868 | // Joining sequential ranges introduced by | ||
1869 | // readonly elements protection. | ||
1870 | if ( i < ranges.length - 1 ) { | ||
1871 | var left = ranges[ i ], | ||
1872 | right = ranges[ i + 1 ], | ||
1873 | between = left.clone(); | ||
1874 | between.setStart( left.endContainer, left.endOffset ); | ||
1875 | between.setEnd( right.startContainer, right.startOffset ); | ||
1876 | |||
1877 | // Don't confused by Firefox adjancent multi-ranges | ||
1878 | // introduced by table cells selection. | ||
1879 | if ( !between.collapsed ) { | ||
1880 | between.shrink( CKEDITOR.NODE_ELEMENT, true ); | ||
1881 | var ancestor = between.getCommonAncestor(), | ||
1882 | enclosed = between.getEnclosedNode(); | ||
1883 | |||
1884 | // The following cases has to be considered: | ||
1885 | // 1. <span contenteditable="false">[placeholder]</span> | ||
1886 | // 2. <input contenteditable="false" type="radio"/> (#6621) | ||
1887 | if ( ancestor.isReadOnly() || enclosed && enclosed.isReadOnly() ) { | ||
1888 | right.setStart( left.startContainer, left.startOffset ); | ||
1889 | ranges.splice( i--, 1 ); | ||
1890 | continue; | ||
1891 | } | ||
1892 | } | ||
1893 | } | ||
1894 | |||
1895 | range = ranges[ i ]; | ||
1896 | |||
1897 | var nativeRange = this.document.$.createRange(); | ||
1898 | |||
1899 | if ( range.collapsed && CKEDITOR.env.webkit && rangeRequiresFix( range ) ) { | ||
1900 | // Append a zero-width space so WebKit will not try to | ||
1901 | // move the selection by itself (#1272). | ||
1902 | var fillingChar = createFillingChar( this.root ); | ||
1903 | range.insertNode( fillingChar ); | ||
1904 | |||
1905 | next = fillingChar.getNext(); | ||
1906 | |||
1907 | // If the filling char is followed by a <br>, whithout | ||
1908 | // having something before it, it'll not blink. | ||
1909 | // Let's remove it in this case. | ||
1910 | if ( next && !fillingChar.getPrevious() && next.type == CKEDITOR.NODE_ELEMENT && next.getName() == 'br' ) { | ||
1911 | removeFillingChar( this.root ); | ||
1912 | range.moveToPosition( next, CKEDITOR.POSITION_BEFORE_START ); | ||
1913 | } else { | ||
1914 | range.moveToPosition( fillingChar, CKEDITOR.POSITION_AFTER_END ); | ||
1915 | } | ||
1916 | } | ||
1917 | |||
1918 | nativeRange.setStart( range.startContainer.$, range.startOffset ); | ||
1919 | |||
1920 | try { | ||
1921 | nativeRange.setEnd( range.endContainer.$, range.endOffset ); | ||
1922 | } catch ( e ) { | ||
1923 | // There is a bug in Firefox implementation (it would be too easy | ||
1924 | // otherwise). The new start can't be after the end (W3C says it can). | ||
1925 | // So, let's create a new range and collapse it to the desired point. | ||
1926 | if ( e.toString().indexOf( 'NS_ERROR_ILLEGAL_VALUE' ) >= 0 ) { | ||
1927 | range.collapse( 1 ); | ||
1928 | nativeRange.setEnd( range.endContainer.$, range.endOffset ); | ||
1929 | } else { | ||
1930 | throw e; | ||
1931 | } | ||
1932 | } | ||
1933 | |||
1934 | // Select the range. | ||
1935 | sel.addRange( nativeRange ); | ||
1936 | } | ||
1937 | } | ||
1938 | |||
1939 | this.reset(); | ||
1940 | |||
1941 | // Fakes the IE DOM event "selectionchange" on editable. | ||
1942 | this.root.fire( 'selectionchange' ); | ||
1943 | }, | ||
1944 | |||
1945 | /** | ||
1946 | * Makes a "fake selection" of an element. | ||
1947 | * | ||
1948 | * A fake selection does not render UI artifacts over the selected | ||
1949 | * element. Additionally, the browser native selection system is not | ||
1950 | * aware of the fake selection. In practice, the native selection is | ||
1951 | * moved to a hidden place where no native selection UI artifacts are | ||
1952 | * displayed to the user. | ||
1953 | * | ||
1954 | * @param {CKEDITOR.dom.element} element The element to be "selected". | ||
1955 | */ | ||
1956 | fake: function( element ) { | ||
1957 | var editor = this.root.editor; | ||
1958 | |||
1959 | // Cleanup after previous selection - e.g. remove hidden sel container. | ||
1960 | this.reset(); | ||
1961 | |||
1962 | hideSelection( editor ); | ||
1963 | |||
1964 | // Set this value after executing hiseSelection, because it may | ||
1965 | // cause reset() which overwrites cache. | ||
1966 | var cache = this._.cache; | ||
1967 | |||
1968 | // Caches a range than holds the element. | ||
1969 | var range = new CKEDITOR.dom.range( this.root ); | ||
1970 | range.setStartBefore( element ); | ||
1971 | range.setEndAfter( element ); | ||
1972 | cache.ranges = new CKEDITOR.dom.rangeList( range ); | ||
1973 | |||
1974 | // Put this element in the cache. | ||
1975 | cache.selectedElement = cache.startElement = element; | ||
1976 | cache.type = CKEDITOR.SELECTION_ELEMENT; | ||
1977 | |||
1978 | // Properties that will not be available when isFake. | ||
1979 | cache.selectedText = cache.nativeSel = null; | ||
1980 | |||
1981 | this.isFake = 1; | ||
1982 | this.rev = nextRev++; | ||
1983 | |||
1984 | // Save this selection, so it can be returned by editor.getSelection(). | ||
1985 | editor._.fakeSelection = this; | ||
1986 | |||
1987 | // Fire selectionchange, just like a normal selection. | ||
1988 | this.root.fire( 'selectionchange' ); | ||
1989 | }, | ||
1990 | |||
1991 | /** | ||
1992 | * Checks whether selection is placed in hidden element. | ||
1993 | * | ||
1994 | * This method is to be used to verify whether fake selection | ||
1995 | * (see {@link #fake}) is still hidden. | ||
1996 | * | ||
1997 | * **Note:** this method should be executed on real selection - e.g.: | ||
1998 | * | ||
1999 | * editor.getSelection( true ).isHidden(); | ||
2000 | * | ||
2001 | * @returns {Boolean} | ||
2002 | */ | ||
2003 | isHidden: function() { | ||
2004 | var el = this.getCommonAncestor(); | ||
2005 | |||
2006 | if ( el && el.type == CKEDITOR.NODE_TEXT ) | ||
2007 | el = el.getParent(); | ||
2008 | |||
2009 | return !!( el && el.data( 'cke-hidden-sel' ) ); | ||
2010 | }, | ||
2011 | |||
2012 | /** | ||
2013 | * Creates a bookmark for each range of this selection (from {@link #getRanges}) | ||
2014 | * by calling the {@link CKEDITOR.dom.range#createBookmark} method, | ||
2015 | * with extra care taken to avoid interference among those ranges. The arguments | ||
2016 | * received are the same as with the underlying range method. | ||
2017 | * | ||
2018 | * var bookmarks = editor.getSelection().createBookmarks(); | ||
2019 | * | ||
2020 | * @returns {Array} Array of bookmarks for each range. | ||
2021 | */ | ||
2022 | createBookmarks: function( serializable ) { | ||
2023 | var bookmark = this.getRanges().createBookmarks( serializable ); | ||
2024 | this.isFake && ( bookmark.isFake = 1 ); | ||
2025 | return bookmark; | ||
2026 | }, | ||
2027 | |||
2028 | /** | ||
2029 | * Creates a bookmark for each range of this selection (from {@link #getRanges}) | ||
2030 | * by calling the {@link CKEDITOR.dom.range#createBookmark2} method, | ||
2031 | * with extra care taken to avoid interference among those ranges. The arguments | ||
2032 | * received are the same as with the underlying range method. | ||
2033 | * | ||
2034 | * var bookmarks = editor.getSelection().createBookmarks2(); | ||
2035 | * | ||
2036 | * @returns {Array} Array of bookmarks for each range. | ||
2037 | */ | ||
2038 | createBookmarks2: function( normalized ) { | ||
2039 | var bookmark = this.getRanges().createBookmarks2( normalized ); | ||
2040 | this.isFake && ( bookmark.isFake = 1 ); | ||
2041 | return bookmark; | ||
2042 | }, | ||
2043 | |||
2044 | /** | ||
2045 | * Selects the virtual ranges denoted by the bookmarks by calling {@link #selectRanges}. | ||
2046 | * | ||
2047 | * var bookmarks = editor.getSelection().createBookmarks(); | ||
2048 | * editor.getSelection().selectBookmarks( bookmarks ); | ||
2049 | * | ||
2050 | * @param {Array} bookmarks The bookmarks representing ranges to be selected. | ||
2051 | * @returns {CKEDITOR.dom.selection} This selection object, after the ranges were selected. | ||
2052 | */ | ||
2053 | selectBookmarks: function( bookmarks ) { | ||
2054 | var ranges = [], | ||
2055 | node; | ||
2056 | |||
2057 | for ( var i = 0; i < bookmarks.length; i++ ) { | ||
2058 | var range = new CKEDITOR.dom.range( this.root ); | ||
2059 | range.moveToBookmark( bookmarks[ i ] ); | ||
2060 | ranges.push( range ); | ||
2061 | } | ||
2062 | |||
2063 | // It may happen that the content change during loading, before selection is set so bookmark leads to text node. | ||
2064 | if ( bookmarks.isFake ) { | ||
2065 | node = ranges[ 0 ].getEnclosedNode(); | ||
2066 | if ( !node || node.type != CKEDITOR.NODE_ELEMENT ) { | ||
2067 | CKEDITOR.warn( 'selection-not-fake' ); | ||
2068 | bookmarks.isFake = 0; | ||
2069 | } | ||
2070 | } | ||
2071 | |||
2072 | if ( bookmarks.isFake ) | ||
2073 | this.fake( node ); | ||
2074 | else | ||
2075 | this.selectRanges( ranges ); | ||
2076 | |||
2077 | return this; | ||
2078 | }, | ||
2079 | |||
2080 | /** | ||
2081 | * Retrieves the common ancestor node of the first range and the last range. | ||
2082 | * | ||
2083 | * var ancestor = editor.getSelection().getCommonAncestor(); | ||
2084 | * | ||
2085 | * @returns {CKEDITOR.dom.element} The common ancestor of the selection or `null` if selection is empty. | ||
2086 | */ | ||
2087 | getCommonAncestor: function() { | ||
2088 | var ranges = this.getRanges(); | ||
2089 | if ( !ranges.length ) | ||
2090 | return null; | ||
2091 | |||
2092 | var startNode = ranges[ 0 ].startContainer, | ||
2093 | endNode = ranges[ ranges.length - 1 ].endContainer; | ||
2094 | return startNode.getCommonAncestor( endNode ); | ||
2095 | }, | ||
2096 | |||
2097 | /** | ||
2098 | * Moves the scrollbar to the starting position of the current selection. | ||
2099 | * | ||
2100 | * editor.getSelection().scrollIntoView(); | ||
2101 | */ | ||
2102 | scrollIntoView: function() { | ||
2103 | // Scrolls the first range into view. | ||
2104 | if ( this.type != CKEDITOR.SELECTION_NONE ) | ||
2105 | this.getRanges()[ 0 ].scrollIntoView(); | ||
2106 | }, | ||
2107 | |||
2108 | /** | ||
2109 | * Remove all the selection ranges from the document. | ||
2110 | */ | ||
2111 | removeAllRanges: function() { | ||
2112 | // Don't clear selection outside this selection's root (#11500). | ||
2113 | if ( this.getType() == CKEDITOR.SELECTION_NONE ) | ||
2114 | return; | ||
2115 | |||
2116 | var nativ = this.getNative(); | ||
2117 | |||
2118 | try { | ||
2119 | nativ && nativ[ isMSSelection ? 'empty' : 'removeAllRanges' ](); | ||
2120 | } catch ( er ) {} | ||
2121 | |||
2122 | this.reset(); | ||
2123 | } | ||
2124 | }; | ||
2125 | |||
2126 | } )(); | ||
2127 | |||
2128 | |||
2129 | /** | ||
2130 | * Fired when selection inside editor has been changed. Note that this event | ||
2131 | * is fired only when selection's start element (container of a selecion start) | ||
2132 | * changes, not on every possible selection change. Thanks to that `selectionChange` | ||
2133 | * is fired less frequently, but on every context | ||
2134 | * (the {@link CKEDITOR.editor#elementPath elements path} holding selection's start) change. | ||
2135 | * | ||
2136 | * @event selectionChange | ||
2137 | * @member CKEDITOR.editor | ||
2138 | * @param {CKEDITOR.editor} editor This editor instance. | ||
2139 | * @param data | ||
2140 | * @param {CKEDITOR.dom.selection} data.selection | ||
2141 | * @param {CKEDITOR.dom.elementPath} data.path | ||
2142 | */ | ||
2143 | |||
2144 | /** | ||
2145 | * Selection's revision. This value is incremented every time new | ||
2146 | * selection is created or existing one is modified. | ||
2147 | * | ||
2148 | * @since 4.3 | ||
2149 | * @readonly | ||
2150 | * @property {Number} rev | ||
2151 | */ | ||
2152 | |||
2153 | /** | ||
2154 | * Document in which selection is anchored. | ||
2155 | * | ||
2156 | * @readonly | ||
2157 | * @property {CKEDITOR.dom.document} document | ||
2158 | */ | ||
2159 | |||
2160 | /** | ||
2161 | * Selection's root element. | ||
2162 | * | ||
2163 | * @readonly | ||
2164 | * @property {CKEDITOR.dom.element} root | ||
2165 | */ | ||
2166 | |||
2167 | /** | ||
2168 | * Whether selection is locked (cannot be modified). | ||
2169 | * | ||
2170 | * See {@link #lock} and {@link #unlock} methods. | ||
2171 | * | ||
2172 | * @readonly | ||
2173 | * @property {Boolean} isLocked | ||
2174 | */ | ||
2175 | |||
2176 | /** | ||
2177 | * Whether selection is a fake selection. | ||
2178 | * | ||
2179 | * See {@link #fake} method. | ||
2180 | * | ||
2181 | * @readonly | ||
2182 | * @property {Boolean} isFake | ||
2183 | */ | ||