_source/plugins/selection/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 (function()\r
   7 {\r
   8         // #### checkSelectionChange : START\r
   9 \r
  10         // The selection change check basically saves the element parent tree of\r
  11         // the current node and check it on successive requests. If there is any\r
  12         // change on the tree, then the selectionChange event gets fired.\r
  13         function checkSelectionChange()\r
  14         {\r
  15                 try\r
  16                 {\r
  17                         // In IE, the "selectionchange" event may still get thrown when\r
  18                         // releasing the WYSIWYG mode, so we need to check it first.\r
  19                         var sel = this.getSelection();\r
  20                         if ( !sel || !sel.document.getWindow().$ )\r
  21                                 return;\r
  22 \r
  23                         var firstElement = sel.getStartElement();\r
  24                         var currentPath = new CKEDITOR.dom.elementPath( firstElement );\r
  25 \r
  26                         if ( !currentPath.compare( this._.selectionPreviousPath ) )\r
  27                         {\r
  28                                 this._.selectionPreviousPath = currentPath;\r
  29                                 this.fire( 'selectionChange', { selection : sel, path : currentPath, element : firstElement } );\r
  30                         }\r
  31                 }\r
  32                 catch (e)\r
  33                 {}\r
  34         }\r
  35 \r
  36         var checkSelectionChangeTimer,\r
  37                 checkSelectionChangeTimeoutPending;\r
  38 \r
  39         function checkSelectionChangeTimeout()\r
  40         {\r
  41                 // Firing the "OnSelectionChange" event on every key press started to\r
  42                 // be too slow. This function guarantees that there will be at least\r
  43                 // 200ms delay between selection checks.\r
  44 \r
  45                 checkSelectionChangeTimeoutPending = true;\r
  46 \r
  47                 if ( checkSelectionChangeTimer )\r
  48                         return;\r
  49 \r
  50                 checkSelectionChangeTimeoutExec.call( this );\r
  51 \r
  52                 checkSelectionChangeTimer = CKEDITOR.tools.setTimeout( checkSelectionChangeTimeoutExec, 200, this );\r
  53         }\r
  54 \r
  55         function checkSelectionChangeTimeoutExec()\r
  56         {\r
  57                 checkSelectionChangeTimer = null;\r
  58 \r
  59                 if ( checkSelectionChangeTimeoutPending )\r
  60                 {\r
  61                         // Call this with a timeout so the browser properly moves the\r
  62                         // selection after the mouseup. It happened that the selection was\r
  63                         // being moved after the mouseup when clicking inside selected text\r
  64                         // with Firefox.\r
  65                         CKEDITOR.tools.setTimeout( checkSelectionChange, 0, this );\r
  66 \r
  67                         checkSelectionChangeTimeoutPending = false;\r
  68                 }\r
  69         }\r
  70 \r
  71         // #### checkSelectionChange : END\r
  72 \r
  73         var selectAllCmd =\r
  74         {\r
  75                 modes : { wysiwyg : 1, source : 1 },\r
  76                 exec : function( editor )\r
  77                 {\r
  78                         switch ( editor.mode )\r
  79                         {\r
  80                                 case 'wysiwyg' :\r
  81                                         editor.document.$.execCommand( 'SelectAll', false, null );\r
  82                                         break;\r
  83                                 case 'source' :\r
  84                                         // Select the contents of the textarea\r
  85                                         var textarea = editor.textarea.$ ;\r
  86                                         if ( CKEDITOR.env.ie )\r
  87                                         {\r
  88                                                 textarea.createTextRange().execCommand( 'SelectAll' ) ;\r
  89                                         }\r
  90                                         else\r
  91                                         {\r
  92                                                 textarea.selectionStart = 0 ;\r
  93                                                 textarea.selectionEnd = textarea.value.length ;\r
  94                                         }\r
  95                                         textarea.focus() ;\r
  96                         }\r
  97                 },\r
  98                 canUndo : false\r
  99         };\r
 100 \r
 101         CKEDITOR.plugins.add( 'selection',\r
 102         {\r
 103                 init : function( editor )\r
 104                 {\r
 105                         editor.on( 'contentDom', function()\r
 106                                 {\r
 107                                         var doc = editor.document,\r
 108                                                 body = doc.getBody(),\r
 109                                                 html = doc.getDocumentElement();\r
 110 \r
 111                                         if ( CKEDITOR.env.ie )\r
 112                                         {\r
 113                                                 // Other browsers don't loose the selection if the\r
 114                                                 // editor document loose the focus. In IE, we don't\r
 115                                                 // have support for it, so we reproduce it here, other\r
 116                                                 // than firing the selection change event.\r
 117 \r
 118                                                 var savedRange,\r
 119                                                         saveEnabled,\r
 120                                                         restoreEnabled = 1;\r
 121 \r
 122                                                 // "onfocusin" is fired before "onfocus". It makes it\r
 123                                                 // possible to restore the selection before click\r
 124                                                 // events get executed.\r
 125                                                 body.on( 'focusin', function( evt )\r
 126                                                         {\r
 127                                                                 // If there are elements with layout they fire this event but\r
 128                                                                 // it must be ignored to allow edit its contents #4682\r
 129                                                                 if ( evt.data.$.srcElement.nodeName != 'BODY' )\r
 130                                                                         return;\r
 131 \r
 132                                                                 // If we have saved a range, restore it at this\r
 133                                                                 // point.\r
 134                                                                 if ( savedRange )\r
 135                                                                 {\r
 136                                                                         if ( restoreEnabled )\r
 137                                                                         {\r
 138                                                                                 // Well not break because of this.\r
 139                                                                                 try\r
 140                                                                                 {\r
 141                                                                                         savedRange.select();\r
 142                                                                                 }\r
 143                                                                                 catch (e)\r
 144                                                                                 {}\r
 145                                                                         }\r
 146 \r
 147                                                                         savedRange = null;\r
 148                                                                 }\r
 149                                                         });\r
 150 \r
 151                                                 body.on( 'focus', function()\r
 152                                                         {\r
 153                                                                 // Enable selections to be saved.\r
 154                                                                 saveEnabled = true;\r
 155 \r
 156                                                                 saveSelection();\r
 157                                                         });\r
 158 \r
 159                                                 body.on( 'beforedeactivate', function( evt )\r
 160                                                         {\r
 161                                                                 // Ignore this event if it's caused by focus switch between\r
 162                                                                 // internal editable control type elements, e.g. layouted paragraph. (#4682)\r
 163                                                                 if ( evt.data.$.toElement )\r
 164                                                                         return;\r
 165 \r
 166                                                                 // Disable selections from being saved.\r
 167                                                                 saveEnabled = false;\r
 168                                                                 restoreEnabled = 1;\r
 169                                                         });\r
 170 \r
 171                                                 // IE before version 8 will leave cursor blinking inside the document after\r
 172                                                 // editor blurred unless we clean up the selection. (#4716)\r
 173                                                 if ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 )\r
 174                                                 {\r
 175                                                         editor.on( 'blur', function( evt )\r
 176                                                         {\r
 177                                                                 editor.document && editor.document.$.selection.empty();\r
 178                                                         });\r
 179                                                 }\r
 180 \r
 181                                                 // Listening on document element ensures that\r
 182                                                 // scrollbar is included. (#5280)\r
 183                                                 html.on( 'mousedown', function ()\r
 184                                                 {\r
 185                                                         // Lock restore selection now, as we have\r
 186                                                         // a followed 'click' event which introduce\r
 187                                                         // new selection. (#5735)\r
 188                                                         restoreEnabled = 0;\r
 189                                                 });\r
 190 \r
 191                                                 html.on( 'mouseup', function ()\r
 192                                                 {\r
 193                                                         restoreEnabled = 1;\r
 194                                                 });\r
 195 \r
 196                                                 // In IE6/7 the blinking cursor appears, but contents are\r
 197                                                 // not editable. (#5634)\r
 198                                                 if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.version < 8 || CKEDITOR.env.quirks ) )\r
 199                                                 {\r
 200                                                         // The 'click' event is not fired when clicking the\r
 201                                                         // scrollbars, so we can use it to check whether\r
 202                                                         // the empty space following <body> has been clicked.\r
 203                                                         html.on( 'click', function( evt )\r
 204                                                         {\r
 205                                                                 if ( evt.data.getTarget().getName() == 'html' )\r
 206                                                                         editor.getSelection().getRanges()[ 0 ].select();\r
 207                                                         });\r
 208                                                 }\r
 209 \r
 210                                                 var scroll;\r
 211                                                 // IE fires the "selectionchange" event when clicking\r
 212                                                 // inside a selection. We don't want to capture that.\r
 213                                                 body.on( 'mousedown', function( evt )\r
 214                                                 {\r
 215                                                         // IE scrolls document to top on right mousedown\r
 216                                                         // when editor has no focus, remember this scroll\r
 217                                                         // position and revert it before context menu opens. (#5778)\r
 218                                                         if ( evt.data.$.button == 2 )\r
 219                                                         {\r
 220                                                                 var sel = editor.document.$.selection;\r
 221                                                                 if ( sel.type == 'None' )\r
 222                                                                         scroll = editor.window.getScrollPosition();\r
 223                                                         }\r
 224                                                         disableSave();\r
 225                                                 });\r
 226 \r
 227                                                 body.on( 'mouseup',\r
 228                                                         function( evt )\r
 229                                                         {\r
 230                                                                 // Restore recorded scroll position when needed on right mouseup.\r
 231                                                                 if ( evt.data.$.button == 2 && scroll )\r
 232                                                                 {\r
 233                                                                         editor.document.$.documentElement.scrollLeft = scroll.x;\r
 234                                                                         editor.document.$.documentElement.scrollTop = scroll.y;\r
 235                                                                 }\r
 236                                                                 scroll = null;\r
 237 \r
 238                                                                 saveEnabled = true;\r
 239                                                                 setTimeout( function()\r
 240                                                                         {\r
 241                                                                                 saveSelection( true );\r
 242                                                                         },\r
 243                                                                         0 );\r
 244                                                         });\r
 245 \r
 246                                                 body.on( 'keydown', disableSave );\r
 247                                                 body.on( 'keyup',\r
 248                                                         function()\r
 249                                                         {\r
 250                                                                 saveEnabled = true;\r
 251                                                                 saveSelection();\r
 252                                                         });\r
 253 \r
 254 \r
 255                                                 // IE is the only to provide the "selectionchange"\r
 256                                                 // event.\r
 257                                                 doc.on( 'selectionchange', saveSelection );\r
 258 \r
 259                                                 function disableSave()\r
 260                                                 {\r
 261                                                         saveEnabled = false;\r
 262                                                 }\r
 263 \r
 264                                                 function saveSelection( testIt )\r
 265                                                 {\r
 266                                                         if ( saveEnabled )\r
 267                                                         {\r
 268                                                                 var doc = editor.document,\r
 269                                                                         sel = editor.getSelection(),\r
 270                                                                         nativeSel = sel && sel.getNative();\r
 271 \r
 272                                                                 // There is a very specific case, when clicking\r
 273                                                                 // inside a text selection. In that case, the\r
 274                                                                 // selection collapses at the clicking point,\r
 275                                                                 // but the selection object remains in an\r
 276                                                                 // unknown state, making createRange return a\r
 277                                                                 // range at the very start of the document. In\r
 278                                                                 // such situation we have to test the range, to\r
 279                                                                 // be sure it's valid.\r
 280                                                                 if ( testIt && nativeSel && nativeSel.type == 'None' )\r
 281                                                                 {\r
 282                                                                         // The "InsertImage" command can be used to\r
 283                                                                         // test whether the selection is good or not.\r
 284                                                                         // If not, it's enough to give some time to\r
 285                                                                         // IE to put things in order for us.\r
 286                                                                         if ( !doc.$.queryCommandEnabled( 'InsertImage' ) )\r
 287                                                                         {\r
 288                                                                                 CKEDITOR.tools.setTimeout( saveSelection, 50, this, true );\r
 289                                                                                 return;\r
 290                                                                         }\r
 291                                                                 }\r
 292 \r
 293                                                                 // Avoid saving selection from within text input. (#5747)\r
 294                                                                 var parentTag;\r
 295                                                                 if ( nativeSel && nativeSel.type && nativeSel.type != 'Control'\r
 296                                                                         && ( parentTag = nativeSel.createRange() )\r
 297                                                                         && ( parentTag = parentTag.parentElement() )\r
 298                                                                         && ( parentTag = parentTag.nodeName )\r
 299                                                                         && parentTag.toLowerCase() in { input: 1, textarea : 1 } )\r
 300                                                                 {\r
 301                                                                         return;\r
 302                                                                 }\r
 303 \r
 304                                                                 savedRange = nativeSel && sel.getRanges()[ 0 ];\r
 305 \r
 306                                                                 checkSelectionChangeTimeout.call( editor );\r
 307                                                         }\r
 308                                                 }\r
 309                                         }\r
 310                                         else\r
 311                                         {\r
 312                                                 // In other browsers, we make the selection change\r
 313                                                 // check based on other events, like clicks or keys\r
 314                                                 // press.\r
 315 \r
 316                                                 doc.on( 'mouseup', checkSelectionChangeTimeout, editor );\r
 317                                                 doc.on( 'keyup', checkSelectionChangeTimeout, editor );\r
 318                                         }\r
 319                                 });\r
 320 \r
 321                         editor.addCommand( 'selectAll', selectAllCmd );\r
 322                         editor.ui.addButton( 'SelectAll',\r
 323                                 {\r
 324                                         label : editor.lang.selectAll,\r
 325                                         command : 'selectAll'\r
 326                                 });\r
 327 \r
 328                         editor.selectionChange = checkSelectionChangeTimeout;\r
 329                 }\r
 330         });\r
 331 \r
 332         /**\r
 333          * Gets the current selection from the editing area when in WYSIWYG mode.\r
 334          * @returns {CKEDITOR.dom.selection} A selection object or null if not on\r
 335          *              WYSIWYG mode or no selection is available.\r
 336          * @example\r
 337          * var selection = CKEDITOR.instances.editor1.<b>getSelection()</b>;\r
 338          * alert( selection.getType() );\r
 339          */\r
 340         CKEDITOR.editor.prototype.getSelection = function()\r
 341         {\r
 342                 return this.document && this.document.getSelection();\r
 343         };\r
 344 \r
 345         CKEDITOR.editor.prototype.forceNextSelectionCheck = function()\r
 346         {\r
 347                 delete this._.selectionPreviousPath;\r
 348         };\r
 349 \r
 350         /**\r
 351          * Gets the current selection from the document.\r
 352          * @returns {CKEDITOR.dom.selection} A selection object.\r
 353          * @example\r
 354          * var selection = CKEDITOR.instances.editor1.document.<b>getSelection()</b>;\r
 355          * alert( selection.getType() );\r
 356          */\r
 357         CKEDITOR.dom.document.prototype.getSelection = function()\r
 358         {\r
 359                 var sel = new CKEDITOR.dom.selection( this );\r
 360                 return ( !sel || sel.isInvalid ) ? null : sel;\r
 361         };\r
 362 \r
 363         /**\r
 364          * No selection.\r
 365          * @constant\r
 366          * @example\r
 367          * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_NONE )\r
 368          *     alert( 'Nothing is selected' );\r
 369          */\r
 370         CKEDITOR.SELECTION_NONE         = 1;\r
 371 \r
 372         /**\r
 373          * Text or collapsed selection.\r
 374          * @constant\r
 375          * @example\r
 376          * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT )\r
 377          *     alert( 'Text is selected' );\r
 378          */\r
 379         CKEDITOR.SELECTION_TEXT         = 2;\r
 380 \r
 381         /**\r
 382          * Element selection.\r
 383          * @constant\r
 384          * @example\r
 385          * if ( editor.getSelection().getType() == CKEDITOR.SELECTION_ELEMENT )\r
 386          *     alert( 'An element is selected' );\r
 387          */\r
 388         CKEDITOR.SELECTION_ELEMENT      = 3;\r
 389 \r
 390         /**\r
 391          * Manipulates the selection in a DOM document.\r
 392          * @constructor\r
 393          * @example\r
 394          */\r
 395         CKEDITOR.dom.selection = function( document )\r
 396         {\r
 397                 var lockedSelection = document.getCustomData( 'cke_locked_selection' );\r
 398 \r
 399                 if ( lockedSelection )\r
 400                         return lockedSelection;\r
 401 \r
 402                 this.document = document;\r
 403                 this.isLocked = false;\r
 404                 this._ =\r
 405                 {\r
 406                         cache : {}\r
 407                 };\r
 408 \r
 409                 /**\r
 410                  * IE BUG: The selection's document may be a different document than the\r
 411                  * editor document. Return null if that's the case.\r
 412                  */\r
 413                 if ( CKEDITOR.env.ie )\r
 414                 {\r
 415                         var range = this.getNative().createRange();\r
 416                         if ( !range\r
 417                                 || ( range.item && range.item(0).ownerDocument != this.document.$ )\r
 418                                 || ( range.parentElement && range.parentElement().ownerDocument != this.document.$ ) )\r
 419                         {\r
 420                                 this.isInvalid = true;\r
 421                         }\r
 422                 }\r
 423 \r
 424                 return this;\r
 425         };\r
 426 \r
 427         var styleObjectElements =\r
 428         {\r
 429                 img:1,hr:1,li:1,table:1,tr:1,td:1,th:1,embed:1,object:1,ol:1,ul:1,\r
 430                 a:1, input:1, form:1, select:1, textarea:1, button:1, fieldset:1, th:1, thead:1, tfoot:1\r
 431         };\r
 432 \r
 433         CKEDITOR.dom.selection.prototype =\r
 434         {\r
 435                 /**\r
 436                  * Gets the native selection object from the browser.\r
 437                  * @function\r
 438                  * @returns {Object} The native selection object.\r
 439                  * @example\r
 440                  * var selection = editor.getSelection().<b>getNative()</b>;\r
 441                  */\r
 442                 getNative :\r
 443                         CKEDITOR.env.ie ?\r
 444                                 function()\r
 445                                 {\r
 446                                         return this._.cache.nativeSel || ( this._.cache.nativeSel = this.document.$.selection );\r
 447                                 }\r
 448                         :\r
 449                                 function()\r
 450                                 {\r
 451                                         return this._.cache.nativeSel || ( this._.cache.nativeSel = this.document.getWindow().$.getSelection() );\r
 452                                 },\r
 453 \r
 454                 /**\r
 455                  * Gets the type of the current selection. The following values are\r
 456                  * available:\r
 457                  * <ul>\r
 458                  *              <li>{@link CKEDITOR.SELECTION_NONE} (1): No selection.</li>\r
 459                  *              <li>{@link CKEDITOR.SELECTION_TEXT} (2): Text is selected or\r
 460                  *                      collapsed selection.</li>\r
 461                  *              <li>{@link CKEDITOR.SELECTION_ELEMENT} (3): A element\r
 462                  *                      selection.</li>\r
 463                  * </ul>\r
 464                  * @function\r
 465                  * @returns {Number} One of the following constant values:\r
 466                  *              {@link CKEDITOR.SELECTION_NONE}, {@link CKEDITOR.SELECTION_TEXT} or\r
 467                  *              {@link CKEDITOR.SELECTION_ELEMENT}.\r
 468                  * @example\r
 469                  * if ( editor.getSelection().<b>getType()</b> == CKEDITOR.SELECTION_TEXT )\r
 470                  *     alert( 'Text is selected' );\r
 471                  */\r
 472                 getType :\r
 473                         CKEDITOR.env.ie ?\r
 474                                 function()\r
 475                                 {\r
 476                                         var cache = this._.cache;\r
 477                                         if ( cache.type )\r
 478                                                 return cache.type;\r
 479 \r
 480                                         var type = CKEDITOR.SELECTION_NONE;\r
 481 \r
 482                                         try\r
 483                                         {\r
 484                                                 var sel = this.getNative(),\r
 485                                                         ieType = sel.type;\r
 486 \r
 487                                                 if ( ieType == 'Text' )\r
 488                                                         type = CKEDITOR.SELECTION_TEXT;\r
 489 \r
 490                                                 if ( ieType == 'Control' )\r
 491                                                         type = CKEDITOR.SELECTION_ELEMENT;\r
 492 \r
 493                                                 // It is possible that we can still get a text range\r
 494                                                 // object even when type == 'None' is returned by IE.\r
 495                                                 // So we'd better check the object returned by\r
 496                                                 // createRange() rather than by looking at the type.\r
 497                                                 if ( sel.createRange().parentElement )\r
 498                                                         type = CKEDITOR.SELECTION_TEXT;\r
 499                                         }\r
 500                                         catch(e) {}\r
 501 \r
 502                                         return ( cache.type = type );\r
 503                                 }\r
 504                         :\r
 505                                 function()\r
 506                                 {\r
 507                                         var cache = this._.cache;\r
 508                                         if ( cache.type )\r
 509                                                 return cache.type;\r
 510 \r
 511                                         var type = CKEDITOR.SELECTION_TEXT;\r
 512 \r
 513                                         var sel = this.getNative();\r
 514 \r
 515                                         if ( !sel )\r
 516                                                 type = CKEDITOR.SELECTION_NONE;\r
 517                                         else if ( sel.rangeCount == 1 )\r
 518                                         {\r
 519                                                 // Check if the actual selection is a control (IMG,\r
 520                                                 // TABLE, HR, etc...).\r
 521 \r
 522                                                 var range = sel.getRangeAt(0),\r
 523                                                         startContainer = range.startContainer;\r
 524 \r
 525                                                 if ( startContainer == range.endContainer\r
 526                                                         && startContainer.nodeType == 1\r
 527                                                         && ( range.endOffset - range.startOffset ) == 1\r
 528                                                         && styleObjectElements[ startContainer.childNodes[ range.startOffset ].nodeName.toLowerCase() ] )\r
 529                                                 {\r
 530                                                         type = CKEDITOR.SELECTION_ELEMENT;\r
 531                                                 }\r
 532                                         }\r
 533 \r
 534                                         return ( cache.type = type );\r
 535                                 },\r
 536 \r
 537                 /**\r
 538                  * Retrieve the {@link CKEDITOR.dom.range} instances that represent the current selection.\r
 539                  * Note: Some browsers returns multiple ranges even on a sequent selection, e.g. Firefox returns\r
 540                  * one range for each table cell when one or more table row is selected.\r
 541                  * @return {Array}\r
 542                  * @example\r
 543                  * var ranges = selection.getRanges();\r
 544                  * alert(ranges.length);\r
 545                  */\r
 546                 getRanges : (function ()\r
 547                 {\r
 548                         var func = CKEDITOR.env.ie ?\r
 549                                 ( function()\r
 550                                 {\r
 551                                         // Finds the container and offset for a specific boundary\r
 552                                         // of an IE range.\r
 553                                         var getBoundaryInformation = function( range, start )\r
 554                                         {\r
 555                                                 // Creates a collapsed range at the requested boundary.\r
 556                                                 range = range.duplicate();\r
 557                                                 range.collapse( start );\r
 558 \r
 559                                                 // Gets the element that encloses the range entirely.\r
 560                                                 var parent = range.parentElement();\r
 561                                                 var siblings = parent.childNodes;\r
 562 \r
 563                                                 var testRange;\r
 564 \r
 565                                                 for ( var i = 0 ; i < siblings.length ; i++ )\r
 566                                                 {\r
 567                                                         var child = siblings[ i ];\r
 568                                                         if ( child.nodeType == 1 )\r
 569                                                         {\r
 570                                                                 testRange = range.duplicate();\r
 571 \r
 572                                                                 testRange.moveToElementText( child );\r
 573 \r
 574                                                                 var comparisonStart = testRange.compareEndPoints( 'StartToStart', range ),\r
 575                                                                         comparisonEnd = testRange.compareEndPoints( 'EndToStart', range );\r
 576 \r
 577                                                                 testRange.collapse();\r
 578 \r
 579                                                                 if ( comparisonStart > 0 )\r
 580                                                                         break;\r
 581                                                                 // When selection stay at the side of certain self-closing elements, e.g. BR,\r
 582                                                                 // our comparison will never shows an equality. (#4824)\r
 583                                                                 else if ( !comparisonStart\r
 584                                                                         || comparisonEnd == 1 && comparisonStart == -1 )\r
 585                                                                         return { container : parent, offset : i };\r
 586                                                                 else if ( !comparisonEnd )\r
 587                                                                         return { container : parent, offset : i + 1 };\r
 588 \r
 589                                                                 testRange = null;\r
 590                                                         }\r
 591                                                 }\r
 592 \r
 593                                                 if ( !testRange )\r
 594                                                 {\r
 595                                                         testRange = range.duplicate();\r
 596                                                         testRange.moveToElementText( parent );\r
 597                                                         testRange.collapse( false );\r
 598                                                 }\r
 599 \r
 600                                                 testRange.setEndPoint( 'StartToStart', range );\r
 601                                                 // IE report line break as CRLF with range.text but\r
 602                                                 // only LF with textnode.nodeValue, normalize them to avoid\r
 603                                                 // breaking character counting logic below. (#3949)\r
 604                                                 var distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;\r
 605 \r
 606                                                 try\r
 607                                                 {\r
 608                                                         while ( distance > 0 )\r
 609                                                                 distance -= siblings[ --i ].nodeValue.length;\r
 610                                                 }\r
 611                                                 // Measurement in IE could be somtimes wrong because of <select> element. (#4611)\r
 612                                                 catch( e )\r
 613                                                 {\r
 614                                                         distance = 0;\r
 615                                                 }\r
 616 \r
 617 \r
 618                                                 if ( distance === 0 )\r
 619                                                 {\r
 620                                                         return {\r
 621                                                                 container : parent,\r
 622                                                                 offset : i\r
 623                                                         };\r
 624                                                 }\r
 625                                                 else\r
 626                                                 {\r
 627                                                         return {\r
 628                                                                 container : siblings[ i ],\r
 629                                                                 offset : -distance\r
 630                                                         };\r
 631                                                 }\r
 632                                         };\r
 633 \r
 634                                         return function()\r
 635                                         {\r
 636                                                 // IE doesn't have range support (in the W3C way), so we\r
 637                                                 // need to do some magic to transform selections into\r
 638                                                 // CKEDITOR.dom.range instances.\r
 639 \r
 640                                                 var sel = this.getNative(),\r
 641                                                         nativeRange = sel && sel.createRange(),\r
 642                                                         type = this.getType(),\r
 643                                                         range;\r
 644 \r
 645                                                 if ( !sel )\r
 646                                                         return [];\r
 647 \r
 648                                                 if ( type == CKEDITOR.SELECTION_TEXT )\r
 649                                                 {\r
 650                                                         range = new CKEDITOR.dom.range( this.document );\r
 651 \r
 652                                                         var boundaryInfo = getBoundaryInformation( nativeRange, true );\r
 653                                                         range.setStart( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );\r
 654 \r
 655                                                         boundaryInfo = getBoundaryInformation( nativeRange );\r
 656                                                         range.setEnd( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );\r
 657 \r
 658                                                         return [ range ];\r
 659                                                 }\r
 660                                                 else if ( type == CKEDITOR.SELECTION_ELEMENT )\r
 661                                                 {\r
 662                                                         var retval = [];\r
 663 \r
 664                                                         for ( var i = 0 ; i < nativeRange.length ; i++ )\r
 665                                                         {\r
 666                                                                 var element = nativeRange.item( i ),\r
 667                                                                         parentElement = element.parentNode,\r
 668                                                                         j = 0;\r
 669 \r
 670                                                                 range = new CKEDITOR.dom.range( this.document );\r
 671 \r
 672                                                                 for (; j < parentElement.childNodes.length && parentElement.childNodes[j] != element ; j++ )\r
 673                                                                 { /*jsl:pass*/ }\r
 674 \r
 675                                                                 range.setStart( new CKEDITOR.dom.node( parentElement ), j );\r
 676                                                                 range.setEnd( new CKEDITOR.dom.node( parentElement ), j + 1 );\r
 677                                                                 retval.push( range );\r
 678                                                         }\r
 679 \r
 680                                                         return retval;\r
 681                                                 }\r
 682 \r
 683                                                 return [];\r
 684                                         };\r
 685                                 })()\r
 686                         :\r
 687                                 function()\r
 688                                 {\r
 689 \r
 690                                         // On browsers implementing the W3C range, we simply\r
 691                                         // tranform the native ranges in CKEDITOR.dom.range\r
 692                                         // instances.\r
 693 \r
 694                                         var ranges = [],\r
 695                                                 range,\r
 696                                                 doc = this.document,\r
 697                                                 sel = this.getNative();\r
 698 \r
 699                                         if ( !sel )\r
 700                                                 return ranges;\r
 701 \r
 702                                         // On WebKit, it may happen that we'll have no selection\r
 703                                         // available. We normalize it here by replicating the\r
 704                                         // behavior of other browsers.\r
 705                                         if ( !sel.rangeCount )\r
 706                                         {\r
 707                                                 range = new CKEDITOR.dom.range( doc );\r
 708                                                 range.moveToElementEditStart( doc.getBody() );\r
 709                                                 ranges.push( range );\r
 710                                         }\r
 711 \r
 712                                         for ( var i = 0 ; i < sel.rangeCount ; i++ )\r
 713                                         {\r
 714                                                 var nativeRange = sel.getRangeAt( i );\r
 715 \r
 716                                                 range = new CKEDITOR.dom.range( doc );\r
 717 \r
 718                                                 range.setStart( new CKEDITOR.dom.node( nativeRange.startContainer ), nativeRange.startOffset );\r
 719                                                 range.setEnd( new CKEDITOR.dom.node( nativeRange.endContainer ), nativeRange.endOffset );\r
 720                                                 ranges.push( range );\r
 721                                         }\r
 722                                         return ranges;\r
 723                                 };\r
 724 \r
 725                         return function( onlyEditables )\r
 726                         {\r
 727                                 var cache = this._.cache;\r
 728                                 if ( cache.ranges && !onlyEditables )\r
 729                                         return cache.ranges;\r
 730                                 else if ( !cache.ranges )\r
 731                                         cache.ranges = new CKEDITOR.dom.rangeList( func.call( this ) );\r
 732 \r
 733                                 // Split range into multiple by read-only nodes.\r
 734                                 if ( onlyEditables )\r
 735                                 {\r
 736                                         var ranges = cache.ranges;\r
 737                                         for ( var i = 0; i < ranges.length; i++ )\r
 738                                         {\r
 739                                                 var range = ranges[ i ];\r
 740 \r
 741                                                 // Drop range spans inside one ready-only node.\r
 742                                                 var parent = range.getCommonAncestor();\r
 743                                                 if ( parent.isReadOnly())\r
 744                                                         ranges.splice( i, 1 );\r
 745 \r
 746                                                 if ( range.collapsed )\r
 747                                                         continue;\r
 748 \r
 749                                                 var startContainer = range.startContainer,\r
 750                                                         endContainer = range.endContainer,\r
 751                                                         startOffset = range.startOffset,\r
 752                                                         endOffset = range.endOffset,\r
 753                                                         walkerRange = range.clone();\r
 754 \r
 755                                                 // Range may start inside a non-editable element, restart range\r
 756                                                 // by the end of it.\r
 757                                                 var readOnly;\r
 758                                                 if ( ( readOnly = startContainer.isReadOnly() ) )\r
 759                                                         range.setStartAfter( readOnly );\r
 760 \r
 761                                                 // Enlarge range start/end with text node to avoid walker\r
 762                                                 // being DOM destructive, it doesn't interfere our checking\r
 763                                                 // of elements below as well.\r
 764                                                 if ( startContainer && startContainer.type == CKEDITOR.NODE_TEXT )\r
 765                                                 {\r
 766                                                         if ( startOffset >= startContainer.getLength() )\r
 767                                                                 walkerRange.setStartAfter( startContainer );\r
 768                                                         else\r
 769                                                                 walkerRange.setStartBefore( startContainer );\r
 770                                                 }\r
 771 \r
 772                                                 if ( endContainer && endContainer.type == CKEDITOR.NODE_TEXT )\r
 773                                                 {\r
 774                                                         if ( !endOffset )\r
 775                                                                 walkerRange.setEndBefore( endContainer );\r
 776                                                         else\r
 777                                                                 walkerRange.setEndAfter( endContainer );\r
 778                                                 }\r
 779 \r
 780                                                 // Looking for non-editable element inside the range.\r
 781                                                 var walker = new CKEDITOR.dom.walker( walkerRange );\r
 782                                                 walker.evaluator = function( node )\r
 783                                                 {\r
 784                                                         if ( node.type == CKEDITOR.NODE_ELEMENT\r
 785                                                                 && node.getAttribute( 'contenteditable' ) == 'false' )\r
 786                                                         {\r
 787                                                                 var newRange = range.clone();\r
 788                                                                 range.setEndBefore( node );\r
 789 \r
 790                                                                 // Drop collapsed range around read-only elements,\r
 791                                                                 // it make sure the range list empty when selecting\r
 792                                                                 // only non-editable elements.\r
 793                                                                 if ( range.collapsed )\r
 794                                                                         ranges.splice( i--, 1 );\r
 795 \r
 796                                                                 // Avoid creating invalid range.\r
 797                                                                 if ( !( node.getPosition( walkerRange.endContainer ) & CKEDITOR.POSITION_CONTAINS ) )\r
 798                                                                 {\r
 799                                                                         newRange.setStartAfter( node );\r
 800                                                                         if ( !newRange.collapsed )\r
 801                                                                                 ranges.splice( i + 1, 0, newRange );\r
 802                                                                 }\r
 803 \r
 804                                                                 return true;\r
 805                                                         }\r
 806 \r
 807                                                         return false;\r
 808                                                 };\r
 809 \r
 810                                                 walker.next();\r
 811                                         }\r
 812                                 }\r
 813 \r
 814                                 return cache.ranges;\r
 815                         };\r
 816                 })(),\r
 817 \r
 818                 /**\r
 819                  * Gets the DOM element in which the selection starts.\r
 820                  * @returns {CKEDITOR.dom.element} The element at the beginning of the\r
 821                  *              selection.\r
 822                  * @example\r
 823                  * var element = editor.getSelection().<b>getStartElement()</b>;\r
 824                  * alert( element.getName() );\r
 825                  */\r
 826                 getStartElement : function()\r
 827                 {\r
 828                         var cache = this._.cache;\r
 829                         if ( cache.startElement !== undefined )\r
 830                                 return cache.startElement;\r
 831 \r
 832                         var node,\r
 833                                 sel = this.getNative();\r
 834 \r
 835                         switch ( this.getType() )\r
 836                         {\r
 837                                 case CKEDITOR.SELECTION_ELEMENT :\r
 838                                         return this.getSelectedElement();\r
 839 \r
 840                                 case CKEDITOR.SELECTION_TEXT :\r
 841 \r
 842                                         var range = this.getRanges()[0];\r
 843 \r
 844                                         if ( range )\r
 845                                         {\r
 846                                                 if ( !range.collapsed )\r
 847                                                 {\r
 848                                                         range.optimize();\r
 849 \r
 850                                                         // Decrease the range content to exclude particial\r
 851                                                         // selected node on the start which doesn't have\r
 852                                                         // visual impact. ( #3231 )\r
 853                                                         while ( true )\r
 854                                                         {\r
 855                                                                 var startContainer = range.startContainer,\r
 856                                                                         startOffset = range.startOffset;\r
 857                                                                 // Limit the fix only to non-block elements.(#3950)\r
 858                                                                 if ( startOffset == ( startContainer.getChildCount ?\r
 859                                                                          startContainer.getChildCount() : startContainer.getLength() )\r
 860                                                                          && !startContainer.isBlockBoundary() )\r
 861                                                                         range.setStartAfter( startContainer );\r
 862                                                                 else break;\r
 863                                                         }\r
 864 \r
 865                                                         node = range.startContainer;\r
 866 \r
 867                                                         if ( node.type != CKEDITOR.NODE_ELEMENT )\r
 868                                                                 return node.getParent();\r
 869 \r
 870                                                         node = node.getChild( range.startOffset );\r
 871 \r
 872                                                         if ( !node || node.type != CKEDITOR.NODE_ELEMENT )\r
 873                                                                 return range.startContainer;\r
 874 \r
 875                                                         var child = node.getFirst();\r
 876                                                         while (  child && child.type == CKEDITOR.NODE_ELEMENT )\r
 877                                                         {\r
 878                                                                 node = child;\r
 879                                                                 child = child.getFirst();\r
 880                                                         }\r
 881 \r
 882                                                         return node;\r
 883                                                 }\r
 884                                         }\r
 885 \r
 886                                         if ( CKEDITOR.env.ie )\r
 887                                         {\r
 888                                                 range = sel.createRange();\r
 889                                                 range.collapse( true );\r
 890 \r
 891                                                 node = range.parentElement();\r
 892                                         }\r
 893                                         else\r
 894                                         {\r
 895                                                 node = sel.anchorNode;\r
 896 \r
 897                                                 if ( node && node.nodeType != 1 )\r
 898                                                         node = node.parentNode;\r
 899                                         }\r
 900                         }\r
 901 \r
 902                         return cache.startElement = ( node ? new CKEDITOR.dom.element( node ) : null );\r
 903                 },\r
 904 \r
 905                 /**\r
 906                  * Gets the current selected element.\r
 907                  * @returns {CKEDITOR.dom.element} The selected element. Null if no\r
 908                  *              selection is available or the selection type is not\r
 909                  *              {@link CKEDITOR.SELECTION_ELEMENT}.\r
 910                  * @example\r
 911                  * var element = editor.getSelection().<b>getSelectedElement()</b>;\r
 912                  * alert( element.getName() );\r
 913                  */\r
 914                 getSelectedElement : function()\r
 915                 {\r
 916                         var cache = this._.cache;\r
 917                         if ( cache.selectedElement !== undefined )\r
 918                                 return cache.selectedElement;\r
 919 \r
 920                         var self = this;\r
 921 \r
 922                         var node = CKEDITOR.tools.tryThese(\r
 923                                 // Is it native IE control type selection?\r
 924                                 function()\r
 925                                 {\r
 926                                         return self.getNative().createRange().item( 0 );\r
 927                                 },\r
 928                                 // Figure it out by checking if there's a single enclosed\r
 929                                 // node of the range.\r
 930                                 function()\r
 931                                 {\r
 932                                         var range  = self.getRanges()[ 0 ],\r
 933                                                 enclosed,\r
 934                                                 selected;\r
 935 \r
 936                                         // Check first any enclosed element, e.g. <ul>[<li><a href="#">item</a></li>]</ul>\r
 937                                         for ( var i = 2; i && !( ( enclosed = range.getEnclosedNode() )\r
 938                                                 && ( enclosed.type == CKEDITOR.NODE_ELEMENT )\r
 939                                                 && styleObjectElements[ enclosed.getName() ]\r
 940                                                 && ( selected = enclosed ) ); i-- )\r
 941                                         {\r
 942                                                 // Then check any deep wrapped element, e.g. [<b><i><img /></i></b>]\r
 943                                                 range.shrink( CKEDITOR.SHRINK_ELEMENT );\r
 944                                         }\r
 945 \r
 946                                         return  selected.$;\r
 947                                 });\r
 948 \r
 949                         return cache.selectedElement = ( node ? new CKEDITOR.dom.element( node ) : null );\r
 950                 },\r
 951 \r
 952                 lock : function()\r
 953                 {\r
 954                         // Call all cacheable function.\r
 955                         this.getRanges();\r
 956                         this.getStartElement();\r
 957                         this.getSelectedElement();\r
 958 \r
 959                         // The native selection is not available when locked.\r
 960                         this._.cache.nativeSel = {};\r
 961 \r
 962                         this.isLocked = true;\r
 963 \r
 964                         // Save this selection inside the DOM document.\r
 965                         this.document.setCustomData( 'cke_locked_selection', this );\r
 966                 },\r
 967 \r
 968                 unlock : function( restore )\r
 969                 {\r
 970                         var doc = this.document,\r
 971                                 lockedSelection = doc.getCustomData( 'cke_locked_selection' );\r
 972 \r
 973                         if ( lockedSelection )\r
 974                         {\r
 975                                 doc.setCustomData( 'cke_locked_selection', null );\r
 976 \r
 977                                 if ( restore )\r
 978                                 {\r
 979                                         var selectedElement = lockedSelection.getSelectedElement(),\r
 980                                                 ranges = !selectedElement && lockedSelection.getRanges();\r
 981 \r
 982                                         this.isLocked = false;\r
 983                                         this.reset();\r
 984 \r
 985                                         doc.getBody().focus();\r
 986 \r
 987                                         if ( selectedElement )\r
 988                                                 this.selectElement( selectedElement );\r
 989                                         else\r
 990                                                 this.selectRanges( ranges );\r
 991                                 }\r
 992                         }\r
 993 \r
 994                         if  ( !lockedSelection || !restore )\r
 995                         {\r
 996                                 this.isLocked = false;\r
 997                                 this.reset();\r
 998                         }\r
 999                 },\r
1000 \r
1001                 reset : function()\r
1002                 {\r
1003                         this._.cache = {};\r
1004                 },\r
1005 \r
1006                 /**\r
1007                  *  Make the current selection of type {@link CKEDITOR.SELECTION_ELEMENT} by enclosing the specified element.\r
1008                  * @param element\r
1009                  */\r
1010                 selectElement : function( element )\r
1011                 {\r
1012                         if ( this.isLocked )\r
1013                         {\r
1014                                 var range = new CKEDITOR.dom.range( this.document );\r
1015                                 range.setStartBefore( element );\r
1016                                 range.setEndAfter( element );\r
1017 \r
1018                                 this._.cache.selectedElement = element;\r
1019                                 this._.cache.startElement = element;\r
1020                                 this._.cache.ranges = new CKEDITOR.dom.rangeList( range );\r
1021                                 this._.cache.type = CKEDITOR.SELECTION_ELEMENT;\r
1022 \r
1023                                 return;\r
1024                         }\r
1025 \r
1026                         if ( CKEDITOR.env.ie )\r
1027                         {\r
1028                                 this.getNative().empty();\r
1029 \r
1030                                 try\r
1031                                 {\r
1032                                         // Try to select the node as a control.\r
1033                                         range = this.document.$.body.createControlRange();\r
1034                                         range.addElement( element.$ );\r
1035                                         range.select();\r
1036                                 }\r
1037                                 catch(e)\r
1038                                 {\r
1039                                         // If failed, select it as a text range.\r
1040                                         range = this.document.$.body.createTextRange();\r
1041                                         range.moveToElementText( element.$ );\r
1042                                         range.select();\r
1043                                 }\r
1044                                 finally\r
1045                                 {\r
1046                                         this.document.fire( 'selectionchange' );\r
1047                                 }\r
1048 \r
1049                                 this.reset();\r
1050                         }\r
1051                         else\r
1052                         {\r
1053                                 // Create the range for the element.\r
1054                                 range = this.document.$.createRange();\r
1055                                 range.selectNode( element.$ );\r
1056 \r
1057                                 // Select the range.\r
1058                                 var sel = this.getNative();\r
1059                                 sel.removeAllRanges();\r
1060                                 sel.addRange( range );\r
1061 \r
1062                                 this.reset();\r
1063                         }\r
1064                 },\r
1065 \r
1066                 /**\r
1067                  *  Adding the specified ranges to document selection preceding\r
1068                  * by clearing up the original selection.\r
1069                  * @param {CKEDITOR.dom.range} ranges\r
1070                  */\r
1071                 selectRanges : function( ranges )\r
1072                 {\r
1073                         if ( this.isLocked )\r
1074                         {\r
1075                                 this._.cache.selectedElement = null;\r
1076                                 this._.cache.startElement = ranges[ 0 ] && ranges[ 0 ].getTouchedStartNode();\r
1077                                 this._.cache.ranges = new CKEDITOR.dom.rangeList( ranges );\r
1078                                 this._.cache.type = CKEDITOR.SELECTION_TEXT;\r
1079 \r
1080                                 return;\r
1081                         }\r
1082 \r
1083                         if ( CKEDITOR.env.ie )\r
1084                         {\r
1085                                 if ( ranges.length > 1 )\r
1086                                 {\r
1087                                         // IE doesn't accept multiple ranges selection, so we join all into one.\r
1088                                         var last = ranges[ ranges.length -1 ] ;\r
1089                                         ranges[ 0 ].setEnd( last.endContainer, last.endOffset );\r
1090                                         ranges.length = 1;\r
1091                                 }\r
1092 \r
1093                                 if ( ranges[ 0 ] )\r
1094                                         ranges[ 0 ].select();\r
1095 \r
1096                                 this.reset();\r
1097                         }\r
1098                         else\r
1099                         {\r
1100                                 var sel = this.getNative();\r
1101 \r
1102                                 if ( ranges.length )\r
1103                                         sel.removeAllRanges();\r
1104 \r
1105                                 for ( var i = 0 ; i < ranges.length ; i++ )\r
1106                                 {\r
1107                                         // Joining sequential ranges introduced by\r
1108                                         // readonly elements protection.\r
1109                                         if ( i < ranges.length -1 )\r
1110                                         {\r
1111                                                 var left = ranges[ i ], right = ranges[ i +1 ],\r
1112                                                                 between = left.clone();\r
1113                                                 between.setStart( left.endContainer, left.endOffset );\r
1114                                                 between.setEnd( right.startContainer, right.startOffset );\r
1115 \r
1116                                                 // Don't confused by Firefox adjancent multi-ranges\r
1117                                                 // introduced by table cells selection.\r
1118                                                 if ( !between.collapsed )\r
1119                                                 {\r
1120                                                         between.shrink( CKEDITOR.NODE_ELEMENT, true );\r
1121                                                         if ( between.getCommonAncestor().isReadOnly())\r
1122                                                         {\r
1123                                                                 right.setStart( left.startContainer, left.startOffset );\r
1124                                                                 ranges.splice( i--, 1 );\r
1125                                                                 continue;\r
1126                                                         }\r
1127                                                 }\r
1128                                         }\r
1129 \r
1130                                         var range = ranges[ i ];\r
1131                                         var nativeRange = this.document.$.createRange();\r
1132                                         var startContainer = range.startContainer;\r
1133 \r
1134                                         // In FF2, if we have a collapsed range, inside an empty\r
1135                                         // element, we must add something to it otherwise the caret\r
1136                                         // will not be visible.\r
1137                                         // In Opera instead, the selection will be moved out of the\r
1138                                         // element. (#4657)\r
1139                                         if ( range.collapsed &&\r
1140                                                 ( CKEDITOR.env.opera || ( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 ) ) &&\r
1141                                                 startContainer.type == CKEDITOR.NODE_ELEMENT &&\r
1142                                                 !startContainer.getChildCount() )\r
1143                                         {\r
1144                                                 startContainer.appendText( '' );\r
1145                                         }\r
1146 \r
1147                                         nativeRange.setStart( startContainer.$, range.startOffset );\r
1148                                         nativeRange.setEnd( range.endContainer.$, range.endOffset );\r
1149 \r
1150                                         // Select the range.\r
1151                                         sel.addRange( nativeRange );\r
1152                                 }\r
1153 \r
1154                                 this.reset();\r
1155                         }\r
1156                 },\r
1157 \r
1158                 /**\r
1159                  *  Create bookmark for every single of this selection range (from #getRanges)\r
1160                  * by calling the {@link CKEDITOR.dom.range.prototype.createBookmark} method,\r
1161                  * with extra cares to avoid interferon among those ranges. Same arguments are\r
1162                  * received as with the underlay range method.\r
1163                  */\r
1164                 createBookmarks : function( serializable )\r
1165                 {\r
1166                         return this.getRanges().createBookmarks( serializable );\r
1167                 },\r
1168 \r
1169                 /**\r
1170                  *  Create bookmark for every single of this selection range (from #getRanges)\r
1171                  * by calling the {@link CKEDITOR.dom.range.prototype.createBookmark2} method,\r
1172                  * with extra cares to avoid interferon among those ranges. Same arguments are\r
1173                  * received as with the underlay range method.\r
1174                  */\r
1175                 createBookmarks2 : function( normalized )\r
1176                 {\r
1177                         return this.getRanges().createBookmarks2( normalized );\r
1178                 },\r
1179 \r
1180                 /**\r
1181                  * Select the virtual ranges denote by the bookmarks by calling #selectRanges.\r
1182                  * @param bookmarks\r
1183                  */\r
1184                 selectBookmarks : function( bookmarks )\r
1185                 {\r
1186                         var ranges = [];\r
1187                         for ( var i = 0 ; i < bookmarks.length ; i++ )\r
1188                         {\r
1189                                 var range = new CKEDITOR.dom.range( this.document );\r
1190                                 range.moveToBookmark( bookmarks[i] );\r
1191                                 ranges.push( range );\r
1192                         }\r
1193                         this.selectRanges( ranges );\r
1194                         return this;\r
1195                 },\r
1196 \r
1197                 /**\r
1198                  * Retrieve the common ancestor node of the first range and the last range.\r
1199                  */\r
1200                 getCommonAncestor : function()\r
1201                 {\r
1202                         var ranges = this.getRanges(),\r
1203                                 startNode = ranges[ 0 ].startContainer,\r
1204                                 endNode = ranges[ ranges.length - 1 ].endContainer;\r
1205                         return startNode.getCommonAncestor( endNode );\r
1206                 },\r
1207 \r
1208                 /**\r
1209                  * Moving scroll bar to the current selection's start position.\r
1210                  */\r
1211                 scrollIntoView : function()\r
1212                 {\r
1213                         // If we have split the block, adds a temporary span at the\r
1214                         // range position and scroll relatively to it.\r
1215                         var start = this.getStartElement();\r
1216                         start.scrollIntoView();\r
1217                 }\r
1218         };\r
1219 })();\r
1220 \r
1221 ( function()\r
1222 {\r
1223         var notWhitespaces = CKEDITOR.dom.walker.whitespaces( true ),\r
1224                         fillerTextRegex = /\ufeff|\u00a0/,\r
1225                         nonCells = { table:1,tbody:1,tr:1 };\r
1226 \r
1227         CKEDITOR.dom.range.prototype.select =\r
1228                 CKEDITOR.env.ie ?\r
1229                         // V2\r
1230                         function( forceExpand )\r
1231                         {\r
1232                                 var collapsed = this.collapsed;\r
1233                                 var isStartMarkerAlone;\r
1234                                 var dummySpan;\r
1235 \r
1236                                 // IE doesn't support selecting the entire table row/cell, move the selection into cells, e.g.\r
1237                                 // <table><tbody><tr>[<td>cell</b></td>... => <table><tbody><tr><td>[cell</td>...\r
1238                                 if ( this.startContainer.type == CKEDITOR.NODE_ELEMENT && this.startContainer.getName() in nonCells\r
1239                                         || this.endContainer.type == CKEDITOR.NODE_ELEMENT && this.endContainer.getName() in nonCells )\r
1240                                 {\r
1241                                         this.shrink( CKEDITOR.NODE_ELEMENT, true );\r
1242                                 }\r
1243 \r
1244                                 var bookmark = this.createBookmark();\r
1245 \r
1246                                 // Create marker tags for the start and end boundaries.\r
1247                                 var startNode = bookmark.startNode;\r
1248 \r
1249                                 var endNode;\r
1250                                 if ( !collapsed )\r
1251                                         endNode = bookmark.endNode;\r
1252 \r
1253                                 // Create the main range which will be used for the selection.\r
1254                                 var ieRange = this.document.$.body.createTextRange();\r
1255 \r
1256                                 // Position the range at the start boundary.\r
1257                                 ieRange.moveToElementText( startNode.$ );\r
1258                                 ieRange.moveStart( 'character', 1 );\r
1259 \r
1260                                 if ( endNode )\r
1261                                 {\r
1262                                         // Create a tool range for the end.\r
1263                                         var ieRangeEnd = this.document.$.body.createTextRange();\r
1264 \r
1265                                         // Position the tool range at the end.\r
1266                                         ieRangeEnd.moveToElementText( endNode.$ );\r
1267 \r
1268                                         // Move the end boundary of the main range to match the tool range.\r
1269                                         ieRange.setEndPoint( 'EndToEnd', ieRangeEnd );\r
1270                                         ieRange.moveEnd( 'character', -1 );\r
1271                                 }\r
1272                                 else\r
1273                                 {\r
1274                                         // The isStartMarkerAlone logic comes from V2. It guarantees that the lines\r
1275                                         // will expand and that the cursor will be blinking on the right place.\r
1276                                         // Actually, we are using this flag just to avoid using this hack in all\r
1277                                         // situations, but just on those needed.\r
1278                                         var next = startNode.getNext( notWhitespaces );\r
1279                                         isStartMarkerAlone = ( !( next && next.getText && next.getText().match( fillerTextRegex ) )     // already a filler there?\r
1280                                                                                   && ( forceExpand || !startNode.hasPrevious() || ( startNode.getPrevious().is && startNode.getPrevious().is( 'br' ) ) ) );\r
1281 \r
1282                                         // Append a temporary <span>&#65279;</span> before the selection.\r
1283                                         // This is needed to avoid IE destroying selections inside empty\r
1284                                         // inline elements, like <b></b> (#253).\r
1285                                         // It is also needed when placing the selection right after an inline\r
1286                                         // element to avoid the selection moving inside of it.\r
1287                                         dummySpan = this.document.createElement( 'span' );\r
1288                                         dummySpan.setHtml( '&#65279;' );        // Zero Width No-Break Space (U+FEFF). See #1359.\r
1289                                         dummySpan.insertBefore( startNode );\r
1290 \r
1291                                         if ( isStartMarkerAlone )\r
1292                                         {\r
1293                                                 // To expand empty blocks or line spaces after <br>, we need\r
1294                                                 // instead to have any char, which will be later deleted using the\r
1295                                                 // selection.\r
1296                                                 // \ufeff = Zero Width No-Break Space (U+FEFF). (#1359)\r
1297                                                 this.document.createText( '\ufeff' ).insertBefore( startNode );\r
1298                                         }\r
1299                                 }\r
1300 \r
1301                                 // Remove the markers (reset the position, because of the changes in the DOM tree).\r
1302                                 this.setStartBefore( startNode );\r
1303                                 startNode.remove();\r
1304 \r
1305                                 if ( collapsed )\r
1306                                 {\r
1307                                         if ( isStartMarkerAlone )\r
1308                                         {\r
1309                                                 // Move the selection start to include the temporary \ufeff.\r
1310                                                 ieRange.moveStart( 'character', -1 );\r
1311 \r
1312                                                 ieRange.select();\r
1313 \r
1314                                                 // Remove our temporary stuff.\r
1315                                                 this.document.$.selection.clear();\r
1316                                         }\r
1317                                         else\r
1318                                                 ieRange.select();\r
1319 \r
1320                                         this.moveToPosition( dummySpan, CKEDITOR.POSITION_BEFORE_START );\r
1321                                         dummySpan.remove();\r
1322                                 }\r
1323                                 else\r
1324                                 {\r
1325                                         this.setEndBefore( endNode );\r
1326                                         endNode.remove();\r
1327                                         ieRange.select();\r
1328                                 }\r
1329 \r
1330                                 this.document.fire( 'selectionchange' );\r
1331                         }\r
1332                 :\r
1333                         function()\r
1334                         {\r
1335                                 var startContainer = this.startContainer;\r
1336 \r
1337                                 // If we have a collapsed range, inside an empty element, we must add\r
1338                                 // something to it, otherwise the caret will not be visible.\r
1339                                 if ( this.collapsed && startContainer.type == CKEDITOR.NODE_ELEMENT && !startContainer.getChildCount() )\r
1340                                         startContainer.append( new CKEDITOR.dom.text( '' ) );\r
1341 \r
1342                                 var nativeRange = this.document.$.createRange();\r
1343                                 nativeRange.setStart( startContainer.$, this.startOffset );\r
1344 \r
1345                                 try\r
1346                                 {\r
1347                                         nativeRange.setEnd( this.endContainer.$, this.endOffset );\r
1348                                 }\r
1349                                 catch ( e )\r
1350                                 {\r
1351                                         // There is a bug in Firefox implementation (it would be too easy\r
1352                                         // otherwise). The new start can't be after the end (W3C says it can).\r
1353                                         // So, let's create a new range and collapse it to the desired point.\r
1354                                         if ( e.toString().indexOf( 'NS_ERROR_ILLEGAL_VALUE' ) >= 0 )\r
1355                                         {\r
1356                                                 this.collapse( true );\r
1357                                                 nativeRange.setEnd( this.endContainer.$, this.endOffset );\r
1358                                         }\r
1359                                         else\r
1360                                                 throw( e );\r
1361                                 }\r
1362 \r
1363                                 var selection = this.document.getSelection().getNative();\r
1364                                 selection.removeAllRanges();\r
1365                                 selection.addRange( nativeRange );\r
1366                         };\r
1367 } )();\r