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 editor.addCommand( 'enter', {
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15 modes : { wysiwyg:1 },
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16 editorFocus : false,
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17 exec : function( editor ){ enter( editor ); }
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20 editor.addCommand( 'shiftEnter', {
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21 modes : { wysiwyg:1 },
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22 editorFocus : false,
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23 exec : function( editor ){ shiftEnter( editor ); }
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26 var keystrokes = editor.keystrokeHandler.keystrokes;
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27 keystrokes[ 13 ] = 'enter';
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28 keystrokes[ CKEDITOR.SHIFT + 13 ] = 'shiftEnter';
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32 CKEDITOR.plugins.enterkey =
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34 enterBlock : function( editor, mode, range, forceMode )
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36 // Get the range for the current selection.
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37 range = range || getRange( editor );
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39 // We may not have valid ranges to work on, like when inside a
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40 // contenteditable=false element.
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44 var doc = range.document;
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46 var atBlockStart = range.checkStartOfBlock(),
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47 atBlockEnd = range.checkEndOfBlock(),
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48 path = new CKEDITOR.dom.elementPath( range.startContainer ),
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51 // Exit the list when we're inside an empty list item block. (#5376)
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52 if ( atBlockStart && atBlockEnd )
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54 if ( block && ( block.is( 'li' ) || block.getParent().is( 'li' ) ) )
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56 editor.execCommand( 'outdent' );
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60 // Don't split <pre> if we're in the middle of it, act as shift enter key.
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61 else if ( !atBlockEnd && block && block.is( 'pre' ) )
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62 enterBr( editor, mode, range, forceMode );
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64 // Determine the block element to be used.
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65 var blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );
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68 var splitInfo = range.splitBlock( blockTag );
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73 // Get the current blocks.
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74 var previousBlock = splitInfo.previousBlock,
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75 nextBlock = splitInfo.nextBlock;
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77 var isStartOfBlock = splitInfo.wasStartOfBlock,
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78 isEndOfBlock = splitInfo.wasEndOfBlock;
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82 // If this is a block under a list item, split it as well. (#1647)
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85 node = nextBlock.getParent();
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86 if ( node.is( 'li' ) )
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88 nextBlock.breakParent( node );
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89 nextBlock.move( nextBlock.getNext(), 1 );
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92 else if ( previousBlock && ( node = previousBlock.getParent() ) && node.is( 'li' ) )
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94 previousBlock.breakParent( node );
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95 node = previousBlock.getNext();
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96 range.moveToElementEditStart( node );
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97 previousBlock.move( previousBlock.getPrevious() );
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100 // If we have both the previous and next blocks, it means that the
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101 // boundaries were on separated blocks, or none of them where on the
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102 // block limits (start/end).
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103 if ( !isStartOfBlock && !isEndOfBlock )
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105 // If the next block is an <li> with another list tree as the first
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106 // child, we'll need to append a filler (<br>/NBSP) or the list item
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107 // wouldn't be editable. (#1420)
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108 if ( nextBlock.is( 'li' )
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109 && ( node = nextBlock.getFirst( CKEDITOR.dom.walker.invisible( true ) ) )
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110 && node.is && node.is( 'ul', 'ol' ) )
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111 ( CKEDITOR.env.ie ? doc.createText( '\xa0' ) : doc.createElement( 'br' ) ).insertBefore( node );
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113 // Move the selection to the end block.
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115 range.moveToElementEditStart( nextBlock );
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122 if ( previousBlock )
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124 // Do not enter this block if it's a header tag, or we are in
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125 // a Shift+Enter (#77). Create a new block element instead
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126 // (later in the code).
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127 if ( previousBlock.is( 'li' ) ||
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128 ! ( headerTagRegex.test( previousBlock.getName() ) || previousBlock.is( 'pre' ) ) )
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130 // Otherwise, duplicate the previous block.
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131 newBlock = previousBlock.clone();
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132 // Value attribute of list item should not be duplicated (#7330).
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133 newBlock.is( 'li' ) && newBlock.removeAttribute( 'value' );
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136 else if ( nextBlock )
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137 newBlock = nextBlock.clone();
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141 // We have already created a new list item. (#6849)
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142 if ( node && node.is( 'li' ) )
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146 newBlock = doc.createElement( blockTag );
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147 if ( previousBlock && ( newBlockDir = previousBlock.getDirection() ) )
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148 newBlock.setAttribute( 'dir', newBlockDir );
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151 // Force the enter block unless we're talking of a list item.
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152 else if ( forceMode && !newBlock.is( 'li' ) )
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153 newBlock.renameNode( blockTag );
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155 // Recreate the inline elements tree, which was available
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156 // before hitting enter, so the same styles will be available in
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158 var elementPath = splitInfo.elementPath;
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161 for ( var i = 0, len = elementPath.elements.length ; i < len ; i++ )
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163 var element = elementPath.elements[ i ];
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165 if ( element.equals( elementPath.block ) || element.equals( elementPath.blockLimit ) )
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168 if ( CKEDITOR.dtd.$removeEmpty[ element.getName() ] )
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170 element = element.clone();
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171 newBlock.moveChildren( element );
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172 newBlock.append( element );
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177 if ( !CKEDITOR.env.ie )
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178 newBlock.appendBogus();
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180 if ( !newBlock.getParent() )
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181 range.insertNode( newBlock );
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183 // This is tricky, but to make the new block visible correctly
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184 // we must select it.
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185 // The previousBlock check has been included because it may be
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186 // empty if we have fixed a block-less space (like ENTER into an
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187 // empty table cell).
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188 if ( CKEDITOR.env.ie && isStartOfBlock && ( !isEndOfBlock || !previousBlock.getChildCount() ) )
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190 // Move the selection to the new block.
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191 range.moveToElementEditStart( isEndOfBlock ? previousBlock : newBlock );
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195 // Move the selection to the new block.
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196 range.moveToElementEditStart( isStartOfBlock && !isEndOfBlock ? nextBlock : newBlock );
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199 if ( !CKEDITOR.env.ie )
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203 // If we have split the block, adds a temporary span at the
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204 // range position and scroll relatively to it.
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205 var tmpNode = doc.createElement( 'span' );
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207 // We need some content for Safari.
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208 tmpNode.setHtml( ' ' );
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210 range.insertNode( tmpNode );
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211 tmpNode.scrollIntoView();
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212 range.deleteContents();
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216 // We may use the above scroll logic for the new block case
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217 // too, but it gives some weird result with Opera.
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218 newBlock.scrollIntoView();
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225 enterBr : function( editor, mode, range, forceMode )
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227 // Get the range for the current selection.
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228 range = range || getRange( editor );
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230 // We may not have valid ranges to work on, like when inside a
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231 // contenteditable=false element.
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235 var doc = range.document;
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237 // Determine the block element to be used.
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238 var blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );
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240 var isEndOfBlock = range.checkEndOfBlock();
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242 var elementPath = new CKEDITOR.dom.elementPath( editor.getSelection().getStartElement() );
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244 var startBlock = elementPath.block,
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245 startBlockTag = startBlock && elementPath.block.getName();
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249 if ( !forceMode && startBlockTag == 'li' )
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251 enterBlock( editor, mode, range, forceMode );
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255 // If we are at the end of a header block.
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256 if ( !forceMode && isEndOfBlock && headerTagRegex.test( startBlockTag ) )
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261 if ( ( newBlockDir = startBlock.getDirection() ) )
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263 newBlock = doc.createElement( 'div' );
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264 newBlock.setAttribute( 'dir', newBlockDir );
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265 newBlock.insertAfter( startBlock );
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266 range.setStart( newBlock, 0 );
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270 // Insert a <br> after the current paragraph.
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271 doc.createElement( 'br' ).insertAfter( startBlock );
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273 // A text node is required by Gecko only to make the cursor blink.
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274 if ( CKEDITOR.env.gecko )
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275 doc.createText( '' ).insertAfter( startBlock );
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277 // IE has different behaviors regarding position.
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278 range.setStartAt( startBlock.getNext(), CKEDITOR.env.ie ? CKEDITOR.POSITION_BEFORE_START : CKEDITOR.POSITION_AFTER_START );
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285 isPre = ( startBlockTag == 'pre' );
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287 // Gecko prefers <br> as line-break inside <pre> (#4711).
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288 if ( isPre && !CKEDITOR.env.gecko )
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289 lineBreak = doc.createText( CKEDITOR.env.ie ? '\r' : '\n' );
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291 lineBreak = doc.createElement( 'br' );
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293 range.deleteContents();
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294 range.insertNode( lineBreak );
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296 // IE has different behavior regarding position.
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297 if ( CKEDITOR.env.ie )
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298 range.setStartAt( lineBreak, CKEDITOR.POSITION_AFTER_END );
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301 // A text node is required by Gecko only to make the cursor blink.
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302 // We need some text inside of it, so the bogus <br> is properly
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304 doc.createText( '\ufeff' ).insertAfter( lineBreak );
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306 // 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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307 if ( isEndOfBlock )
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308 lineBreak.getParent().appendBogus();
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310 // Now we can remove the text node contents, so the caret doesn't
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312 lineBreak.getNext().$.nodeValue = '';
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314 range.setStartAt( lineBreak.getNext(), CKEDITOR.POSITION_AFTER_START );
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316 // Scroll into view, for non IE.
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319 // BR is not positioned in Opera and Webkit.
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320 if ( !CKEDITOR.env.gecko )
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322 dummy = doc.createElement( 'span' );
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323 // We need have some contents for Webkit to position it
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324 // under parent node. ( #3681)
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325 dummy.setHtml(' ');
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328 dummy = doc.createElement( 'br' );
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330 dummy.insertBefore( lineBreak.getNext() );
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331 dummy.scrollIntoView();
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336 // This collapse guarantees the cursor will be blinking.
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337 range.collapse( true );
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339 range.select( isPre );
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343 var plugin = CKEDITOR.plugins.enterkey,
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344 enterBr = plugin.enterBr,
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345 enterBlock = plugin.enterBlock,
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346 headerTagRegex = /^h[1-6]$/;
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348 function shiftEnter( editor )
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350 // Only effective within document.
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351 if ( editor.mode != 'wysiwyg' )
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355 // 1. We want to enforce the mode to be respected, instead
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356 // of cloning the current block. (#77)
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357 return enter( editor, editor.config.shiftEnterMode, 1 );
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360 function enter( editor, mode, forceMode )
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362 forceMode = editor.config.forceEnterMode || forceMode;
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364 // Only effective within document.
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365 if ( editor.mode != 'wysiwyg' )
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369 mode = editor.config.enterMode;
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371 // Use setTimout so the keys get cancelled immediatelly.
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372 setTimeout( function()
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374 editor.fire( 'saveSnapshot' ); // Save undo step.
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375 if ( mode == CKEDITOR.ENTER_BR )
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376 enterBr( editor, mode, null, forceMode );
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378 enterBlock( editor, mode, null, forceMode );
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385 function getRange( editor )
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387 // Get the selection ranges.
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388 var ranges = editor.getSelection().getRanges( true );
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390 // Delete the contents of all ranges except the first one.
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391 for ( var i = ranges.length - 1 ; i > 0 ; i-- )
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393 ranges[ i ].deleteContents();
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396 // Return the first range.
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397 return ranges[ 0 ];
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