2 Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
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3 For licensing, see LICENSE.html or http://ckeditor.com/license
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8 CKEDITOR.plugins.add( 'enterkey',
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10 requires : [ 'keystrokes', 'indent' ],
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12 init : function( editor )
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14 var specialKeys = editor.specialKeys;
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15 specialKeys[ 13 ] = enter;
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16 specialKeys[ CKEDITOR.SHIFT + 13 ] = shiftEnter;
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20 CKEDITOR.plugins.enterkey =
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22 enterBlock : function( editor, mode, range, forceMode )
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24 // Get the range for the current selection.
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25 range = range || getRange( editor );
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27 // We may not have valid ranges to work on, like when inside a
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28 // contenteditable=false element.
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32 var doc = range.document;
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34 // Exit the list when we're inside an empty list item block. (#5376)
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35 if ( range.checkStartOfBlock() && range.checkEndOfBlock() )
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37 var path = new CKEDITOR.dom.elementPath( range.startContainer ),
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40 if ( block && ( block.is( 'li' ) || block.getParent().is( 'li' ) ) )
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42 editor.execCommand( 'outdent' );
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47 // Determine the block element to be used.
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48 var blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );
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51 var splitInfo = range.splitBlock( blockTag );
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56 // Get the current blocks.
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57 var previousBlock = splitInfo.previousBlock,
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58 nextBlock = splitInfo.nextBlock;
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60 var isStartOfBlock = splitInfo.wasStartOfBlock,
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61 isEndOfBlock = splitInfo.wasEndOfBlock;
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65 // If this is a block under a list item, split it as well. (#1647)
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68 node = nextBlock.getParent();
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69 if ( node.is( 'li' ) )
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71 nextBlock.breakParent( node );
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72 nextBlock.move( nextBlock.getNext(), 1 );
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75 else if ( previousBlock && ( node = previousBlock.getParent() ) && node.is( 'li' ) )
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77 previousBlock.breakParent( node );
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78 range.moveToElementEditStart( previousBlock.getNext() );
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79 previousBlock.move( previousBlock.getPrevious() );
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82 // If we have both the previous and next blocks, it means that the
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83 // boundaries were on separated blocks, or none of them where on the
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84 // block limits (start/end).
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85 if ( !isStartOfBlock && !isEndOfBlock )
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87 // If the next block is an <li> with another list tree as the first
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88 // child, we'll need to append a filler (<br>/NBSP) or the list item
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89 // wouldn't be editable. (#1420)
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90 if ( nextBlock.is( 'li' )
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91 && ( node = nextBlock.getFirst( CKEDITOR.dom.walker.invisible( true ) ) )
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92 && node.is && node.is( 'ul', 'ol' ) )
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93 ( CKEDITOR.env.ie ? doc.createText( '\xa0' ) : doc.createElement( 'br' ) ).insertBefore( node );
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95 // Move the selection to the end block.
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97 range.moveToElementEditStart( nextBlock );
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104 if ( previousBlock )
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106 // Do not enter this block if it's a header tag, or we are in
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107 // a Shift+Enter (#77). Create a new block element instead
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108 // (later in the code).
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109 if ( previousBlock.is( 'li' ) || !headerTagRegex.test( previousBlock.getName() ) )
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111 // Otherwise, duplicate the previous block.
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112 newBlock = previousBlock.clone();
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115 else if ( nextBlock )
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116 newBlock = nextBlock.clone();
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120 newBlock = doc.createElement( blockTag );
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121 if ( previousBlock && ( newBlockDir = previousBlock.getDirection() ) )
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122 newBlock.setAttribute( 'dir', newBlockDir );
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124 // Force the enter block unless we're talking of a list item.
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125 else if ( forceMode && !newBlock.is( 'li' ) )
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126 newBlock.renameNode( blockTag );
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128 // Recreate the inline elements tree, which was available
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129 // before hitting enter, so the same styles will be available in
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131 var elementPath = splitInfo.elementPath;
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134 for ( var i = 0, len = elementPath.elements.length ; i < len ; i++ )
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136 var element = elementPath.elements[ i ];
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138 if ( element.equals( elementPath.block ) || element.equals( elementPath.blockLimit ) )
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141 if ( CKEDITOR.dtd.$removeEmpty[ element.getName() ] )
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143 element = element.clone();
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144 newBlock.moveChildren( element );
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145 newBlock.append( element );
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150 if ( !CKEDITOR.env.ie )
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151 newBlock.appendBogus();
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153 range.insertNode( newBlock );
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155 // This is tricky, but to make the new block visible correctly
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156 // we must select it.
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157 // The previousBlock check has been included because it may be
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158 // empty if we have fixed a block-less space (like ENTER into an
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159 // empty table cell).
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160 if ( CKEDITOR.env.ie && isStartOfBlock && ( !isEndOfBlock || !previousBlock.getChildCount() ) )
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162 // Move the selection to the new block.
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163 range.moveToElementEditStart( isEndOfBlock ? previousBlock : newBlock );
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167 // Move the selection to the new block.
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168 range.moveToElementEditStart( isStartOfBlock && !isEndOfBlock ? nextBlock : newBlock );
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171 if ( !CKEDITOR.env.ie )
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175 // If we have split the block, adds a temporary span at the
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176 // range position and scroll relatively to it.
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177 var tmpNode = doc.createElement( 'span' );
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179 // We need some content for Safari.
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180 tmpNode.setHtml( ' ' );
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182 range.insertNode( tmpNode );
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183 tmpNode.scrollIntoView();
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184 range.deleteContents();
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188 // We may use the above scroll logic for the new block case
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189 // too, but it gives some weird result with Opera.
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190 newBlock.scrollIntoView();
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197 enterBr : function( editor, mode, range, forceMode )
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199 // Get the range for the current selection.
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200 range = range || getRange( editor );
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202 // We may not have valid ranges to work on, like when inside a
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203 // contenteditable=false element.
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207 var doc = range.document;
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209 // Determine the block element to be used.
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210 var blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );
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212 var isEndOfBlock = range.checkEndOfBlock();
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214 var elementPath = new CKEDITOR.dom.elementPath( editor.getSelection().getStartElement() );
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216 var startBlock = elementPath.block,
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217 startBlockTag = startBlock && elementPath.block.getName();
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221 if ( !forceMode && startBlockTag == 'li' )
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223 enterBlock( editor, mode, range, forceMode );
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227 // If we are at the end of a header block.
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228 if ( !forceMode && isEndOfBlock && headerTagRegex.test( startBlockTag ) )
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233 if ( ( newBlockDir = startBlock.getDirection() ) )
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235 newBlock = doc.createElement( 'div' );
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236 newBlock.setAttribute( 'dir', newBlockDir );
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237 newBlock.insertAfter( startBlock );
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238 range.setStart( newBlock, 0 );
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242 // Insert a <br> after the current paragraph.
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243 doc.createElement( 'br' ).insertAfter( startBlock );
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245 // A text node is required by Gecko only to make the cursor blink.
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246 if ( CKEDITOR.env.gecko )
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247 doc.createText( '' ).insertAfter( startBlock );
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249 // IE has different behaviors regarding position.
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250 range.setStartAt( startBlock.getNext(), CKEDITOR.env.ie ? CKEDITOR.POSITION_BEFORE_START : CKEDITOR.POSITION_AFTER_START );
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257 isPre = ( startBlockTag == 'pre' );
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259 // Gecko prefers <br> as line-break inside <pre> (#4711).
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260 if ( isPre && !CKEDITOR.env.gecko )
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261 lineBreak = doc.createText( CKEDITOR.env.ie ? '\r' : '\n' );
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263 lineBreak = doc.createElement( 'br' );
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265 range.deleteContents();
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266 range.insertNode( lineBreak );
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268 // A text node is required by Gecko only to make the cursor blink.
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269 // We need some text inside of it, so the bogus <br> is properly
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271 if ( !CKEDITOR.env.ie )
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272 doc.createText( '\ufeff' ).insertAfter( lineBreak );
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274 // If we are at the end of a block, we must be sure the bogus node is available in that block.
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275 if ( isEndOfBlock && !CKEDITOR.env.ie )
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276 lineBreak.getParent().appendBogus();
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278 // Now we can remove the text node contents, so the caret doesn't
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280 if ( !CKEDITOR.env.ie )
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281 lineBreak.getNext().$.nodeValue = '';
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282 // IE has different behavior regarding position.
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283 if ( CKEDITOR.env.ie )
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284 range.setStartAt( lineBreak, CKEDITOR.POSITION_AFTER_END );
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286 range.setStartAt( lineBreak.getNext(), CKEDITOR.POSITION_AFTER_START );
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288 // Scroll into view, for non IE.
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289 if ( !CKEDITOR.env.ie )
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293 // BR is not positioned in Opera and Webkit.
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294 if ( !CKEDITOR.env.gecko )
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296 dummy = doc.createElement( 'span' );
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297 // We need have some contents for Webkit to position it
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298 // under parent node. ( #3681)
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299 dummy.setHtml(' ');
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302 dummy = doc.createElement( 'br' );
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304 dummy.insertBefore( lineBreak.getNext() );
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305 dummy.scrollIntoView();
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310 // This collapse guarantees the cursor will be blinking.
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311 range.collapse( true );
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313 range.select( isPre );
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317 var plugin = CKEDITOR.plugins.enterkey,
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318 enterBr = plugin.enterBr,
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319 enterBlock = plugin.enterBlock,
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320 headerTagRegex = /^h[1-6]$/;
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322 function shiftEnter( editor )
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324 // Only effective within document.
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325 if ( editor.mode != 'wysiwyg' )
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329 // 1. We want to enforce the mode to be respected, instead
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330 // of cloning the current block. (#77)
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331 // 2. Always perform a block break when inside <pre> (#5402).
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332 if ( editor.getSelection().getStartElement().hasAscendant( 'pre', true ) )
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334 setTimeout( function() { enterBlock( editor, editor.config.enterMode, null, true ); }, 0 );
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338 return enter( editor, editor.config.shiftEnterMode, 1 );
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341 function enter( editor, mode, forceMode )
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343 forceMode = editor.config.forceEnterMode || forceMode;
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345 // Only effective within document.
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346 if ( editor.mode != 'wysiwyg' )
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350 mode = editor.config.enterMode;
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352 // Use setTimout so the keys get cancelled immediatelly.
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353 setTimeout( function()
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355 editor.fire( 'saveSnapshot' ); // Save undo step.
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356 if ( mode == CKEDITOR.ENTER_BR || editor.getSelection().getStartElement().hasAscendant( 'pre', 1 ) )
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357 enterBr( editor, mode, null, forceMode );
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359 enterBlock( editor, mode, null, forceMode );
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367 function getRange( editor )
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369 // Get the selection ranges.
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370 var ranges = editor.getSelection().getRanges( true );
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372 // Delete the contents of all ranges except the first one.
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373 for ( var i = ranges.length - 1 ; i > 0 ; i-- )
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375 ranges[ i ].deleteContents();
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378 // Return the first range.
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379 return ranges[ 0 ];
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