wp-includes/js/tinymce/plugins/wpview/plugin.js

   1 /* global tinymce */
   2
   3 /**
   4  * WordPress View plugin.
   5  */
   6 tinymce.PluginManager.add( 'wpview', function( editor ) {
   7         var $ = editor.$,
   8                 selected,
   9                 Env = tinymce.Env,
  10                 VK = tinymce.util.VK,
  11                 TreeWalker = tinymce.dom.TreeWalker,
  12                 toRemove = false,
  13                 firstFocus = true,
  14                 _noop = function() { return false; },
  15                 isios = /iPad|iPod|iPhone/.test( navigator.userAgent ),
  16                 cursorInterval,
  17                 lastKeyDownNode,
  18                 setViewCursorTries,
  19                 focus,
  20                 execCommandView,
  21                 execCommandBefore,
  22                 toolbar;
  23
  24         function getView( node ) {
  25                 return getParent( node, 'wpview-wrap' );
  26         }
  27
  28         /**
  29          * Returns the node or a parent of the node that has the passed className.
  30          * Doing this directly is about 40% faster
  31          */
  32         function getParent( node, className ) {
  33                 while ( node && node.parentNode ) {
  34                         if ( node.className && ( ' ' + node.className + ' ' ).indexOf( ' ' + className + ' ' ) !== -1 ) {
  35                                 return node;
  36                         }
  37
  38                         node = node.parentNode;
  39                 }
  40
  41                 return false;
  42         }
  43
  44         function _stop( event ) {
  45                 event.stopPropagation();
  46         }
  47
  48         function setViewCursor( before, view ) {
  49                 var location = before ? 'before' : 'after',
  50                         offset = before ? 0 : 1;
  51                 deselect();
  52                 editor.selection.setCursorLocation( editor.dom.select( '.wpview-selection-' + location, view )[0], offset );
  53                 editor.nodeChanged();
  54         }
  55
  56         function handleEnter( view, before, key ) {
  57                 var dom = editor.dom,
  58                         padNode = dom.create( 'p' );
  59
  60                 if ( ! ( Env.ie && Env.ie < 11 ) ) {
  61                         padNode.innerHTML = '<br data-mce-bogus="1">';
  62                 }
  63
  64                 if ( before ) {
  65                         view.parentNode.insertBefore( padNode, view );
  66                 } else {
  67                         dom.insertAfter( padNode, view );
  68                 }
  69
  70                 deselect();
  71
  72                 if ( before && key === VK.ENTER ) {
  73                         setViewCursor( before, view );
  74                 } else {
  75                         editor.selection.setCursorLocation( padNode, 0 );
  76                 }
  77
  78                 editor.nodeChanged();
  79         }
  80
  81         function removeView( view ) {
  82                 editor.undoManager.transact( function() {
  83                         handleEnter( view );
  84                         wp.mce.views.remove( editor, view );
  85                 });
  86         }
  87
  88         function select( viewNode ) {
  89                 var clipboard,
  90                         dom = editor.dom;
  91
  92                 if ( ! viewNode ) {
  93                         return;
  94                 }
  95
  96                 if ( viewNode !== selected ) {
  97                         // Make sure that the editor is focused.
  98                         // It is possible that the editor is not focused when the mouse event fires
  99                         // without focus, the selection will not work properly.
 100                         editor.getBody().focus();
 101
 102                         deselect();
 103                         selected = viewNode;
 104                         dom.setAttrib( viewNode, 'data-mce-selected', 1 );
 105
 106                         clipboard = dom.create( 'div', {
 107                                 'class': 'wpview-clipboard',
 108                                 'contenteditable': 'true'
 109                         }, wp.mce.views.getText( viewNode ) );
 110
 111                         editor.dom.select( '.wpview-body', viewNode )[0].appendChild( clipboard );
 112
 113                         // Both of the following are necessary to prevent manipulating the selection/focus
 114                         dom.bind( clipboard, 'beforedeactivate focusin focusout', _stop );
 115                         dom.bind( selected, 'beforedeactivate focusin focusout', _stop );
 116
 117                         // select the hidden div
 118                         if ( isios ) {
 119                                 editor.selection.select( clipboard );
 120                         } else {
 121                                 editor.selection.select( clipboard, true );
 122                         }
 123                 }
 124
 125                 editor.nodeChanged();
 126                 editor.fire( 'wpview-selected', viewNode );
 127         }
 128
 129         /**
 130          * Deselect a selected view and remove clipboard
 131          */
 132         function deselect() {
 133                 var clipboard,
 134                         dom = editor.dom;
 135
 136                 if ( selected ) {
 137                         clipboard = editor.dom.select( '.wpview-clipboard', selected )[0];
 138                         dom.unbind( clipboard );
 139                         dom.remove( clipboard );
 140
 141                         dom.unbind( selected, 'beforedeactivate focusin focusout click mouseup', _stop );
 142                         dom.setAttrib( selected, 'data-mce-selected', null );
 143                 }
 144
 145                 selected = null;
 146         }
 147
 148         // Check if the `wp.mce` API exists.
 149         if ( typeof wp === 'undefined' || ! wp.mce ) {
 150                 return {
 151                         getView: _noop
 152                 };
 153         }
 154
 155         function resetViewsCallback( match, viewText ) {
 156                 return '<p>' + window.decodeURIComponent( viewText ) + '</p>';
 157         }
 158
 159         // Replace the view tags with the view string
 160         function resetViews( content ) {
 161                 return content.replace( /<div[^>]+data-wpview-text="([^"]+)"[^>]*>(?:[\s\S]+?wpview-selection-after[^>]+>[^<>]*<\/p>\s*|\.)<\/div>/g, resetViewsCallback )
 162                         .replace( /<p [^>]*?data-wpview-marker="([^"]+)"[^>]*>[\s\S]*?<\/p>/g, resetViewsCallback );
 163         }
 164
 165         // Prevent adding undo levels on changes inside a view wrapper
 166         editor.on( 'BeforeAddUndo', function( event ) {
 167                 if ( event.level.content ) {
 168                         event.level.content = resetViews( event.level.content );
 169                 }
 170         });
 171
 172         // When the editor's content changes, scan the new content for
 173         // matching view patterns, and transform the matches into
 174         // view wrappers.
 175         editor.on( 'BeforeSetContent', function( event ) {
 176                 var node;
 177
 178                 if ( ! event.selection ) {
 179                         wp.mce.views.unbind();
 180                 }
 181
 182                 if ( ! event.content ) {
 183                         return;
 184                 }
 185
 186                 if ( ! event.load ) {
 187                         if ( selected ) {
 188                                 removeView( selected );
 189                         }
 190
 191                         node = editor.selection.getNode();
 192
 193                         if ( node && node !== editor.getBody() && /^\s*https?:\/\/\S+\s*$/i.test( event.content ) ) {
 194                                 // When a url is pasted or inserted, only try to embed it when it is in an empty paragrapgh.
 195                                 node = editor.dom.getParent( node, 'p' );
 196
 197                                 if ( node && /^[\s\uFEFF\u00A0]*$/.test( $( node ).text() || '' ) ) {
 198                                         // Make sure there are no empty inline elements in the <p>
 199                                         node.innerHTML = '';
 200                                 } else {
 201                                         return;
 202                                 }
 203                         }
 204                 }
 205
 206                 event.content = wp.mce.views.setMarkers( event.content );
 207         });
 208
 209         // When pasting strip all tags and check if the string is an URL.
 210         // Then replace the pasted content with the cleaned URL.
 211         editor.on( 'pastePreProcess', function( event ) {
 212                 var pastedStr = event.content;
 213
 214                 if ( pastedStr ) {
 215                         pastedStr = tinymce.trim( pastedStr.replace( /<[^>]+>/g, '' ) );
 216
 217                         if ( /^https?:\/\/\S+$/i.test( pastedStr ) ) {
 218                                 event.content = pastedStr;
 219                         }
 220                 }
 221         });
 222
 223         // When the editor's content has been updated and the DOM has been
 224         // processed, render the views in the document.
 225         editor.on( 'SetContent', function() {
 226                 wp.mce.views.render();
 227         });
 228
 229         // Set the cursor before or after a view when clicking next to it.
 230         editor.on( 'click', function( event ) {
 231                 var x = event.clientX,
 232                         y = event.clientY,
 233                         body = editor.getBody(),
 234                         bodyRect = body.getBoundingClientRect(),
 235                         first = body.firstChild,
 236                         last = body.lastChild,
 237                         firstRect, lastRect, view;
 238
 239                 if ( ! first || ! last ) {
 240                         return;
 241                 }
 242
 243                 firstRect = first.getBoundingClientRect();
 244                 lastRect = last.getBoundingClientRect();
 245
 246                 if ( y < firstRect.top && ( view = getView( first ) ) ) {
 247                         setViewCursor( true, view );
 248                         event.preventDefault();
 249                 } else if ( y > lastRect.bottom && ( view = getView( last ) ) ) {
 250                         setViewCursor( false, view );
 251                         event.preventDefault();
 252                 } else if ( x < bodyRect.left || x > bodyRect.right ) {
 253                         tinymce.each( editor.dom.select( '.wpview-wrap' ), function( view ) {
 254                                 var rect = view.getBoundingClientRect();
 255
 256                                 if ( y < rect.top ) {
 257                                         return false;
 258                                 }
 259
 260                                 if ( y >= rect.top && y <= rect.bottom ) {
 261                                         if ( x < bodyRect.left ) {
 262                                                 setViewCursor( true, view );
 263                                                 event.preventDefault();
 264                                         } else if ( x > bodyRect.right ) {
 265                                                 setViewCursor( false, view );
 266                                                 event.preventDefault();
 267                                         }
 268
 269                                         return false;
 270                                 }
 271                         });
 272                 }
 273         });
 274
 275         editor.on( 'init', function() {
 276                 var scrolled = false,
 277                         selection = editor.selection,
 278                         MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
 279
 280                 // When a view is selected, ensure content that is being pasted
 281                 // or inserted is added to a text node (instead of the view).
 282                 editor.on( 'BeforeSetContent', function() {
 283                         var walker, target,
 284                                 view = getView( selection.getNode() );
 285
 286                         // If the selection is not within a view, bail.
 287                         if ( ! view ) {
 288                                 return;
 289                         }
 290
 291                         if ( ! view.nextSibling || getView( view.nextSibling ) ) {
 292                                 // If there are no additional nodes or the next node is a
 293                                 // view, create a text node after the current view.
 294                                 target = editor.getDoc().createTextNode('');
 295                                 editor.dom.insertAfter( target, view );
 296                         } else {
 297                                 // Otherwise, find the next text node.
 298                                 walker = new TreeWalker( view.nextSibling, view.nextSibling );
 299                                 target = walker.next();
 300                         }
 301
 302                         // Select the `target` text node.
 303                         selection.select( target );
 304                         selection.collapse( true );
 305                 });
 306
 307                 editor.dom.bind( editor.getDoc(), 'touchmove', function() {
 308                         scrolled = true;
 309                 });
 310
 311                 editor.on( 'mousedown mouseup click touchend', function( event ) {
 312                         var view = getView( event.target );
 313
 314                         firstFocus = false;
 315
 316                         // Contain clicks inside the view wrapper
 317                         if ( view ) {
 318                                 event.stopImmediatePropagation();
 319                                 event.preventDefault();
 320
 321                                 if ( event.type === 'touchend' && scrolled ) {
 322                                         scrolled = false;
 323                                 } else {
 324                                         select( view );
 325                                 }
 326
 327                                 // Returning false stops the ugly bars from appearing in IE11 and stops the view being selected as a range in FF.
 328                                 // Unfortunately, it also inhibits the dragging of views to a new location.
 329                                 return false;
 330                         } else {
 331                                 if ( event.type === 'touchend' || event.type === 'mousedown' ) {
 332                                         deselect();
 333                                 }
 334                         }
 335
 336                         if ( event.type === 'touchend' && scrolled ) {
 337                                 scrolled = false;
 338                         }
 339                 }, true );
 340
 341                 if ( MutationObserver ) {
 342                         new MutationObserver( function() {
 343                                 editor.fire( 'wp-body-class-change' );
 344                         } )
 345                         .observe( editor.getBody(), {
 346                                 attributes: true,
 347                                 attributeFilter: ['class']
 348                         } );
 349                 }
 350         });
 351
 352         // Empty the wpview wrap and marker nodes
 353         function emptyViewNodes( rootNode ) {
 354                 $( 'div[data-wpview-text], p[data-wpview-marker]', rootNode ).each( function( i, node ) {
 355                         node.innerHTML = '.';
 356                 });
 357         }
 358
 359         // Run that before the DOM cleanup
 360         editor.on( 'PreProcess', function( event ) {
 361                 emptyViewNodes( event.node );
 362         }, true );
 363
 364         editor.on( 'hide', function() {
 365                 wp.mce.views.unbind();
 366                 deselect();
 367                 emptyViewNodes();
 368         });
 369
 370         editor.on( 'PostProcess', function( event ) {
 371                 if ( event.content ) {
 372                         event.content = event.content.replace( /<div [^>]*?data-wpview-text="([^"]+)"[^>]*>[\s\S]*?<\/div>/g, resetViewsCallback )
 373                                 .replace( /<p [^>]*?data-wpview-marker="([^"]+)"[^>]*>[\s\S]*?<\/p>/g, resetViewsCallback );
 374                 }
 375         });
 376
 377         // Excludes arrow keys, delete, backspace, enter, space bar.
 378         // Ref: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent.keyCode
 379         function isSpecialKey( key ) {
 380                 return ( ( key <= 47 && key !== VK.SPACEBAR && key !== VK.ENTER && key !== VK.DELETE && key !== VK.BACKSPACE && ( key < 37 || key > 40 ) ) ||
 381                         key >= 224 || // OEM or non-printable
 382                         ( key >= 144 && key <= 150 ) || // Num Lock, Scroll Lock, OEM
 383                         ( key >= 91 && key <= 93 ) || // Windows keys
 384                         ( key >= 112 && key <= 135 ) ); // F keys
 385         }
 386
 387         // (De)select views when arrow keys are used to navigate the content of the editor.
 388         editor.on( 'keydown', function( event ) {
 389                 var key = event.keyCode,
 390                         dom = editor.dom,
 391                         selection = editor.selection,
 392                         node, view, cursorBefore, cursorAfter,
 393                         range, clonedRange, tempRange;
 394
 395                 if ( selected ) {
 396                         // Ignore key presses that involve the command or control key, but continue when in combination with backspace or v.
 397                         // Also ignore the F# keys.
 398                         if ( ( ( event.metaKey || event.ctrlKey ) && key !== VK.BACKSPACE && key !== 86 ) || ( key >= 112 && key <= 123 ) ) {
 399                                 // Remove the view when pressing cmd/ctrl+x on keyup, otherwise the browser can't copy the content.
 400                                 if ( ( event.metaKey || event.ctrlKey ) && key === 88 ) {
 401                                         toRemove = selected;
 402                                 }
 403                                 return;
 404                         }
 405
 406                         view = getView( selection.getNode() );
 407
 408                         // If the caret is not within the selected view, deselect the view and bail.
 409                         if ( view !== selected ) {
 410                                 deselect();
 411                                 return;
 412                         }
 413
 414                         if ( key === VK.LEFT ) {
 415                                 setViewCursor( true, view );
 416                                 event.preventDefault();
 417                         } else if ( key === VK.UP ) {
 418                                 if ( view.previousSibling ) {
 419                                         if ( getView( view.previousSibling ) ) {
 420                                                 setViewCursor( true, view.previousSibling );
 421                                         } else {
 422                                                 deselect();
 423                                                 selection.select( view.previousSibling, true );
 424                                                 selection.collapse();
 425                                         }
 426                                 } else {
 427                                         setViewCursor( true, view );
 428                                 }
 429                                 event.preventDefault();
 430                         } else if ( key === VK.RIGHT ) {
 431                                 setViewCursor( false, view );
 432                                 event.preventDefault();
 433                         } else if ( key === VK.DOWN ) {
 434                                 if ( view.nextSibling ) {
 435                                         if ( getView( view.nextSibling ) ) {
 436                                                 setViewCursor( false, view.nextSibling );
 437                                         } else {
 438                                                 deselect();
 439                                                 selection.setCursorLocation( view.nextSibling, 0 );
 440                                         }
 441                                 } else {
 442                                         setViewCursor( false, view );
 443                                 }
 444
 445                                 event.preventDefault();
 446                         // Ignore keys that don't insert anything.
 447                         } else if ( ! isSpecialKey( key ) ) {
 448                                 removeView( selected );
 449
 450                                 if ( key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE ) {
 451                                         event.preventDefault();
 452                                 }
 453                         }
 454                 } else {
 455                         if ( event.metaKey || event.ctrlKey || ( key >= 112 && key <= 123 ) ) {
 456                                 return;
 457                         }
 458
 459                         node = selection.getNode();
 460                         lastKeyDownNode = node;
 461                         view = getView( node );
 462
 463                         // Make sure we don't delete part of a view.
 464                         // If the range ends or starts with the view, we'll need to trim it.
 465                         if ( ! selection.isCollapsed() ) {
 466                                 range = selection.getRng();
 467
 468                                 if ( view = getView( range.endContainer ) ) {
 469                                         clonedRange = range.cloneRange();
 470                                         selection.select( view.previousSibling, true );
 471                                         selection.collapse();
 472                                         tempRange = selection.getRng();
 473                                         clonedRange.setEnd( tempRange.endContainer, tempRange.endOffset );
 474                                         selection.setRng( clonedRange );
 475                                 } else if ( view = getView( range.startContainer ) ) {
 476                                         clonedRange = range.cloneRange();
 477                                         clonedRange.setStart( view.nextSibling, 0 );
 478                                         selection.setRng( clonedRange );
 479                                 }
 480                         }
 481
 482                         if ( ! view ) {
 483                                 // Make sure we don't eat any content.
 484                                 if ( event.keyCode === VK.BACKSPACE ) {
 485                                         if ( editor.dom.isEmpty( node ) ) {
 486                                                 if ( view = getView( node.previousSibling ) ) {
 487                                                         setViewCursor( false, view );
 488                                                         editor.dom.remove( node );
 489                                                         event.preventDefault();
 490                                                 }
 491                                         } else if ( ( range = selection.getRng() ) &&
 492                                                         range.startOffset === 0 &&
 493                                                         range.endOffset === 0 &&
 494                                                         ( view = getView( node.previousSibling ) ) ) {
 495                                                 setViewCursor( false, view );
 496                                                 event.preventDefault();
 497                                         }
 498                                 }
 499                                 return;
 500                         }
 501
 502                         if ( ! ( ( cursorBefore = dom.hasClass( view, 'wpview-selection-before' ) ) ||
 503                                         ( cursorAfter = dom.hasClass( view, 'wpview-selection-after' ) ) ) ) {
 504                                 return;
 505                         }
 506
 507                         if ( isSpecialKey( key ) ) {
 508                                 // ignore
 509                                 return;
 510                         }
 511
 512                         if ( ( cursorAfter && key === VK.UP ) || ( cursorBefore && key === VK.BACKSPACE ) ) {
 513                                 if ( view.previousSibling ) {
 514                                         if ( getView( view.previousSibling ) ) {
 515                                                 setViewCursor( false, view.previousSibling );
 516                                         } else {
 517                                                 if ( dom.isEmpty( view.previousSibling ) && key === VK.BACKSPACE ) {
 518                                                         dom.remove( view.previousSibling );
 519                                                 } else {
 520                                                         selection.select( view.previousSibling, true );
 521                                                         selection.collapse();
 522                                                 }
 523                                         }
 524                                 } else {
 525                                         setViewCursor( true, view );
 526                                 }
 527                                 event.preventDefault();
 528                         } else if ( cursorAfter && ( key === VK.DOWN || key === VK.RIGHT ) ) {
 529                                 if ( view.nextSibling ) {
 530                                         if ( getView( view.nextSibling ) ) {
 531                                                 setViewCursor( key === VK.RIGHT, view.nextSibling );
 532                                         } else {
 533                                                 selection.setCursorLocation( view.nextSibling, 0 );
 534                                         }
 535                                 }
 536                                 event.preventDefault();
 537                         } else if ( cursorBefore && ( key === VK.UP || key ===  VK.LEFT ) ) {
 538                                 if ( view.previousSibling ) {
 539                                         if ( getView( view.previousSibling ) ) {
 540                                                 setViewCursor( key === VK.UP, view.previousSibling );
 541                                         } else {
 542                                                 selection.select( view.previousSibling, true );
 543                                                 selection.collapse();
 544                                         }
 545                                 }
 546                                 event.preventDefault();
 547                         } else if ( cursorBefore && key === VK.DOWN ) {
 548                                 if ( view.nextSibling ) {
 549                                         if ( getView( view.nextSibling ) ) {
 550                                                 setViewCursor( true, view.nextSibling );
 551                                         } else {
 552                                                 selection.setCursorLocation( view.nextSibling, 0 );
 553                                         }
 554                                 } else {
 555                                         setViewCursor( false, view );
 556                                 }
 557                                 event.preventDefault();
 558                         } else if ( ( cursorAfter && key === VK.LEFT ) || ( cursorBefore && key === VK.RIGHT ) ) {
 559                                 select( view );
 560                                 event.preventDefault();
 561                         } else if ( cursorAfter && key === VK.BACKSPACE ) {
 562                                 removeView( view );
 563                                 event.preventDefault();
 564                         } else if ( cursorAfter ) {
 565                                 handleEnter( view );
 566                         } else if ( cursorBefore ) {
 567                                 handleEnter( view , true, key );
 568                         }
 569
 570                         if ( key === VK.ENTER ) {
 571                                 event.preventDefault();
 572                         }
 573                 }
 574         });
 575
 576         editor.on( 'keyup', function() {
 577                 if ( toRemove ) {
 578                         removeView( toRemove );
 579                         toRemove = false;
 580                 }
 581         });
 582
 583         editor.on( 'focus', function() {
 584                 var view;
 585
 586                 focus = true;
 587                 editor.dom.addClass( editor.getBody(), 'has-focus' );
 588
 589                 // Edge case: show the fake caret when the editor is focused for the first time
 590                 // and the first element is a view.
 591                 if ( firstFocus && ( view = getView( editor.getBody().firstChild ) ) ) {
 592                         setViewCursor( true, view );
 593                 }
 594
 595                 firstFocus = false;
 596         } );
 597
 598         editor.on( 'blur', function() {
 599                 focus = false;
 600                 editor.dom.removeClass( editor.getBody(), 'has-focus' );
 601         } );
 602
 603         editor.on( 'NodeChange', function( event ) {
 604                 var dom = editor.dom,
 605                         views = editor.dom.select( '.wpview-wrap' ),
 606                         className = event.element.className,
 607                         view = getView( event.element ),
 608                         lKDN = lastKeyDownNode;
 609
 610                 lastKeyDownNode = false;
 611
 612                 clearInterval( cursorInterval );
 613
 614                 // This runs a lot and is faster than replacing each class separately
 615                 tinymce.each( views, function ( view ) {
 616                         if ( view.className ) {
 617                                 view.className = view.className.replace( / ?\bwpview-(?:selection-before|selection-after|cursor-hide)\b/g, '' );
 618                         }
 619                 });
 620
 621                 if ( focus && view ) {
 622                         if ( ( className === 'wpview-selection-before' || className === 'wpview-selection-after' ) &&
 623                                 editor.selection.isCollapsed() ) {
 624
 625                                 setViewCursorTries = 0;
 626
 627                                 deselect();
 628
 629                                 // Make sure the cursor arrived in the right node.
 630                                 // This is necessary for Firefox.
 631                                 if ( lKDN === view.previousSibling ) {
 632                                         setViewCursor( true, view );
 633                                         return;
 634                                 } else if ( lKDN === view.nextSibling ) {
 635                                         setViewCursor( false, view );
 636                                         return;
 637                                 }
 638
 639                                 dom.addClass( view, className );
 640
 641                                 cursorInterval = setInterval( function() {
 642                                         if ( dom.hasClass( view, 'wpview-cursor-hide' ) ) {
 643                                                 dom.removeClass( view, 'wpview-cursor-hide' );
 644                                         } else {
 645                                                 dom.addClass( view, 'wpview-cursor-hide' );
 646                                         }
 647                                 }, 500 );
 648                         // If the cursor lands anywhere else in the view, set the cursor before it.
 649                         // Only try this once to prevent a loop. (You never know.)
 650                         } else if ( ! getParent( event.element, 'wpview-clipboard' ) && ! setViewCursorTries ) {
 651                                 deselect();
 652                                 setViewCursorTries++;
 653                                 setViewCursor( true, view );
 654                         }
 655                 }
 656         });
 657
 658         editor.on( 'BeforeExecCommand', function() {
 659                 var node = editor.selection.getNode(),
 660                         view;
 661
 662                 if ( node && ( ( execCommandBefore = node.className === 'wpview-selection-before' ) || node.className === 'wpview-selection-after' ) && ( view = getView( node ) ) ) {
 663                         handleEnter( view, execCommandBefore );
 664                         execCommandView = view;
 665                 }
 666         });
 667
 668         editor.on( 'ExecCommand', function() {
 669                 var toSelect, node;
 670
 671                 if ( selected ) {
 672                         toSelect = selected;
 673                         deselect();
 674                         select( toSelect );
 675                 }
 676
 677                 if ( execCommandView ) {
 678                         node = execCommandView[ execCommandBefore ? 'previousSibling' : 'nextSibling' ];
 679
 680                         if ( node && node.nodeName === 'P' && editor.dom.isEmpty( node ) ) {
 681                                 editor.dom.remove( node );
 682                                 setViewCursor( execCommandBefore, execCommandView );
 683                         }
 684
 685                         execCommandView = false;
 686                 }
 687         });
 688
 689         editor.on( 'ResolveName', function( event ) {
 690                 if ( editor.dom.hasClass( event.target, 'wpview-wrap' ) ) {
 691                         event.name = editor.dom.getAttrib( event.target, 'data-wpview-type' ) || 'wpview';
 692                         event.stopPropagation();
 693                 } else if ( getView( event.target ) ) {
 694                         event.preventDefault();
 695                         event.stopPropagation();
 696                 }
 697         });
 698
 699         editor.addButton( 'wp_view_edit', {
 700                 tooltip: 'Edit ', // trailing space is needed, used for context
 701                 icon: 'dashicon dashicons-edit',
 702                 onclick: function() {
 703                         selected && wp.mce.views.edit( editor, selected );
 704                 }
 705         } );
 706
 707         editor.addButton( 'wp_view_remove', {
 708                 tooltip: 'Remove',
 709                 icon: 'dashicon dashicons-no',
 710                 onclick: function() {
 711                         selected && removeView( selected );
 712                 }
 713         } );
 714
 715         editor.once( 'preinit', function() {
 716                 toolbar = editor.wp._createToolbar( [
 717                         'wp_view_edit',
 718                         'wp_view_remove'
 719                 ] );
 720         } );
 721
 722         editor.on( 'wptoolbar', function( event ) {
 723                 if ( selected ) {
 724                         event.element = selected;
 725                         event.toolbar = toolbar;
 726                 }
 727         } );
 728
 729         // Add to editor.wp
 730         editor.wp = editor.wp || {};
 731         editor.wp.getView = getView;
 732         editor.wp.setViewCursor = setViewCursor;
 733
 734         // Keep for back-compat.
 735         return {
 736                 getView: getView
 737         };
 738 });