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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 | */ |