From c63493c899de714b05b0521bb38aab60d19030ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Isma=C3=ABl=20Bouya?= <ismael.bouya@normalesup.org>
Date: Fri, 20 Jan 2017 00:55:51 +0100
Subject: Validation initiale

---
 sources/plugins/enterkey/plugin.js | 566 +++++++++++++++++++++++++++++++++++++
 1 file changed, 566 insertions(+)
 create mode 100644 sources/plugins/enterkey/plugin.js

(limited to 'sources/plugins/enterkey/plugin.js')

diff --git a/sources/plugins/enterkey/plugin.js b/sources/plugins/enterkey/plugin.js
new file mode 100644
index 0000000..9410bbd
--- /dev/null
+++ b/sources/plugins/enterkey/plugin.js
@@ -0,0 +1,566 @@
+/**
+ * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md or http://ckeditor.com/license
+ */
+
+( function() {
+	CKEDITOR.plugins.add( 'enterkey', {
+		init: function( editor ) {
+			editor.addCommand( 'enter', {
+				modes: { wysiwyg: 1 },
+				editorFocus: false,
+				exec: function( editor ) {
+					enter( editor );
+				}
+			} );
+
+			editor.addCommand( 'shiftEnter', {
+				modes: { wysiwyg: 1 },
+				editorFocus: false,
+				exec: function( editor ) {
+					shiftEnter( editor );
+				}
+			} );
+
+			editor.setKeystroke( [
+				[ 13, 'enter' ],
+				[ CKEDITOR.SHIFT + 13, 'shiftEnter' ]
+			] );
+		}
+	} );
+
+	var whitespaces = CKEDITOR.dom.walker.whitespaces(),
+		bookmark = CKEDITOR.dom.walker.bookmark();
+
+	CKEDITOR.plugins.enterkey = {
+		enterBlock: function( editor, mode, range, forceMode ) {
+			// Get the range for the current selection.
+			range = range || getRange( editor );
+
+			// We may not have valid ranges to work on, like when inside a
+			// contenteditable=false element.
+			if ( !range )
+				return;
+
+			// When range is in nested editable, we have to replace range with this one,
+			// which have root property set to closest editable, to make auto paragraphing work. (#12162)
+			range = replaceRangeWithClosestEditableRoot( range );
+
+			var doc = range.document;
+
+			var atBlockStart = range.checkStartOfBlock(),
+				atBlockEnd = range.checkEndOfBlock(),
+				path = editor.elementPath( range.startContainer ),
+				block = path.block,
+
+				// Determine the block element to be used.
+				blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' ),
+
+				newBlock;
+
+			// Exit the list when we're inside an empty list item block. (#5376)
+			if ( atBlockStart && atBlockEnd ) {
+				// Exit the list when we're inside an empty list item block. (#5376)
+				if ( block && ( block.is( 'li' ) || block.getParent().is( 'li' ) ) ) {
+					// Make sure to point to the li when dealing with empty list item.
+					if ( !block.is( 'li' ) )
+						block = block.getParent();
+
+					var blockParent = block.getParent(),
+						blockGrandParent = blockParent.getParent(),
+
+						firstChild = !block.hasPrevious(),
+						lastChild = !block.hasNext(),
+
+						selection = editor.getSelection(),
+						bookmarks = selection.createBookmarks(),
+
+						orgDir = block.getDirection( 1 ),
+						className = block.getAttribute( 'class' ),
+						style = block.getAttribute( 'style' ),
+						dirLoose = blockGrandParent.getDirection( 1 ) != orgDir,
+
+						enterMode = editor.enterMode,
+						needsBlock = enterMode != CKEDITOR.ENTER_BR || dirLoose || style || className,
+
+						child;
+
+					if ( blockGrandParent.is( 'li' ) ) {
+
+						// If block is the first or the last child of the parent
+						// list, degrade it and move to the outer list:
+						// before the parent list if block is first child and after
+						// the parent list if block is the last child, respectively.
+						//
+						//  <ul>                         =>      <ul>
+						//      <li>                     =>          <li>
+						//          <ul>                 =>              <ul>
+						//              <li>x</li>       =>                  <li>x</li>
+						//              <li>^</li>       =>              </ul>
+						//          </ul>                =>          </li>
+						//      </li>                    =>          <li>^</li>
+						//  </ul>                        =>      </ul>
+						//
+						//                              AND
+						//
+						//  <ul>                         =>      <ul>
+						//      <li>                     =>          <li>^</li>
+						//          <ul>                 =>          <li>
+						//              <li>^</li>       =>              <ul>
+						//              <li>x</li>       =>                  <li>x</li>
+						//          </ul>                =>              </ul>
+						//      </li>                    =>          </li>
+						//  </ul>                        =>      </ul>
+
+						if ( firstChild || lastChild ) {
+
+							// If it's only child, we don't want to keep perent ul anymore.
+							if ( firstChild && lastChild ) {
+								blockParent.remove();
+							}
+
+							block[lastChild ? 'insertAfter' : 'insertBefore']( blockGrandParent );
+
+							// If the empty block is neither first nor last child
+							// then split the list and the block as an element
+							// of outer list.
+							//
+							//                              =>      <ul>
+							//                              =>          <li>
+							//  <ul>                        =>              <ul>
+							//      <li>                    =>                  <li>x</li>
+							//          <ul>                =>              </ul>
+							//              <li>x</li>      =>          </li>
+							//              <li>^</li>      =>          <li>^</li>
+							//              <li>y</li>      =>          <li>
+							//          </ul>               =>              <ul>
+							//      </li>                   =>                  <li>y</li>
+							//  </ul>                       =>              </ul>
+							//                              =>          </li>
+							//                              =>      </ul>
+
+						} else {
+							block.breakParent( blockGrandParent );
+						}
+					}
+
+					else if ( !needsBlock ) {
+						block.appendBogus( true );
+
+						// If block is the first or last child of the parent
+						// list, move all block's children out of the list:
+						// before the list if block is first child and after the list
+						// if block is the last child, respectively.
+						//
+						//  <ul>                       =>      <ul>
+						//      <li>x</li>             =>          <li>x</li>
+						//      <li>^</li>             =>      </ul>
+						//  </ul>                      =>      ^
+						//
+						//                            AND
+						//
+						//  <ul>                       =>      ^
+						//      <li>^</li>             =>      <ul>
+						//      <li>x</li>             =>          <li>x</li>
+						//  </ul>                      =>      </ul>
+
+						if ( firstChild || lastChild ) {
+							while ( ( child = block[ firstChild ? 'getFirst' : 'getLast' ]() ) )
+								child[ firstChild ? 'insertBefore' : 'insertAfter' ]( blockParent );
+						}
+
+						// If the empty block is neither first nor last child
+						// then split the list and put all the block contents
+						// between two lists.
+						//
+						//  <ul>                       =>      <ul>
+						//      <li>x</li>             =>          <li>x</li>
+						//      <li>^</li>             =>      </ul>
+						//      <li>y</li>             =>      ^
+						//  </ul>                      =>      <ul>
+						//                             =>          <li>y</li>
+						//                             =>      </ul>
+
+						else {
+							block.breakParent( blockParent );
+
+							while ( ( child = block.getLast() ) )
+								child.insertAfter( blockParent );
+						}
+
+						block.remove();
+					} else {
+						// Original path block is the list item, create new block for the list item content.
+						if ( path.block.is( 'li' ) ) {
+							// Use <div> block for ENTER_BR and ENTER_DIV.
+							newBlock = doc.createElement( mode == CKEDITOR.ENTER_P ? 'p' : 'div' );
+
+							if ( dirLoose )
+								newBlock.setAttribute( 'dir', orgDir );
+
+							style && newBlock.setAttribute( 'style', style );
+							className && newBlock.setAttribute( 'class', className );
+
+							// Move all the child nodes to the new block.
+							block.moveChildren( newBlock );
+						}
+						// The original path block is not a list item, just copy the block to out side of the list.
+						else {
+							newBlock = path.block;
+						}
+
+						// If block is the first or last child of the parent
+						// list, move it out of the list:
+						// before the list if block is first child and after the list
+						// if block is the last child, respectively.
+						//
+						//  <ul>                       =>      <ul>
+						//      <li>x</li>             =>          <li>x</li>
+						//      <li>^</li>             =>      </ul>
+						//  </ul>                      =>      <p>^</p>
+						//
+						//                            AND
+						//
+						//  <ul>                       =>      <p>^</p>
+						//      <li>^</li>             =>      <ul>
+						//      <li>x</li>             =>          <li>x</li>
+						//  </ul>                      =>      </ul>
+
+						if ( firstChild || lastChild )
+							newBlock[ firstChild ? 'insertBefore' : 'insertAfter' ]( blockParent );
+
+						// If the empty block is neither first nor last child
+						// then split the list and put the new block between
+						// two lists.
+						//
+						//                             =>       <ul>
+						//     <ul>                    =>           <li>x</li>
+						//         <li>x</li>          =>       </ul>
+						//         <li>^</li>          =>       <p>^</p>
+						//         <li>y</li>          =>       <ul>
+						//     </ul>                   =>           <li>y</li>
+						//                             =>       </ul>
+
+						else {
+							block.breakParent( blockParent );
+							newBlock.insertAfter( blockParent );
+						}
+
+						block.remove();
+					}
+
+					selection.selectBookmarks( bookmarks );
+
+					return;
+				}
+
+				if ( block && block.getParent().is( 'blockquote' ) ) {
+					block.breakParent( block.getParent() );
+
+					// If we were at the start of <blockquote>, there will be an empty element before it now.
+					if ( !block.getPrevious().getFirst( CKEDITOR.dom.walker.invisible( 1 ) ) )
+						block.getPrevious().remove();
+
+					// If we were at the end of <blockquote>, there will be an empty element after it now.
+					if ( !block.getNext().getFirst( CKEDITOR.dom.walker.invisible( 1 ) ) )
+						block.getNext().remove();
+
+					range.moveToElementEditStart( block );
+					range.select();
+					return;
+				}
+			}
+			// Don't split <pre> if we're in the middle of it, act as shift enter key.
+			else if ( block && block.is( 'pre' ) ) {
+				if ( !atBlockEnd ) {
+					enterBr( editor, mode, range, forceMode );
+					return;
+				}
+			}
+
+			// Split the range.
+			var splitInfo = range.splitBlock( blockTag );
+
+			if ( !splitInfo )
+				return;
+
+			// Get the current blocks.
+			var previousBlock = splitInfo.previousBlock,
+				nextBlock = splitInfo.nextBlock;
+
+			var isStartOfBlock = splitInfo.wasStartOfBlock,
+				isEndOfBlock = splitInfo.wasEndOfBlock;
+
+			var node;
+
+			// If this is a block under a list item, split it as well. (#1647)
+			if ( nextBlock ) {
+				node = nextBlock.getParent();
+				if ( node.is( 'li' ) ) {
+					nextBlock.breakParent( node );
+					nextBlock.move( nextBlock.getNext(), 1 );
+				}
+			} else if ( previousBlock && ( node = previousBlock.getParent() ) && node.is( 'li' ) ) {
+				previousBlock.breakParent( node );
+				node = previousBlock.getNext();
+				range.moveToElementEditStart( node );
+				previousBlock.move( previousBlock.getPrevious() );
+			}
+
+			// If we have both the previous and next blocks, it means that the
+			// boundaries were on separated blocks, or none of them where on the
+			// block limits (start/end).
+			if ( !isStartOfBlock && !isEndOfBlock ) {
+				// If the next block is an <li> with another list tree as the first
+				// child, we'll need to append a filler (<br>/NBSP) or the list item
+				// wouldn't be editable. (#1420)
+				if ( nextBlock.is( 'li' ) ) {
+					var walkerRange = range.clone();
+					walkerRange.selectNodeContents( nextBlock );
+					var walker = new CKEDITOR.dom.walker( walkerRange );
+					walker.evaluator = function( node ) {
+						return !( bookmark( node ) || whitespaces( node ) || node.type == CKEDITOR.NODE_ELEMENT && node.getName() in CKEDITOR.dtd.$inline && !( node.getName() in CKEDITOR.dtd.$empty ) );
+					};
+
+					node = walker.next();
+					if ( node && node.type == CKEDITOR.NODE_ELEMENT && node.is( 'ul', 'ol' ) )
+						( CKEDITOR.env.needsBrFiller ? doc.createElement( 'br' ) : doc.createText( '\xa0' ) ).insertBefore( node );
+				}
+
+				// Move the selection to the end block.
+				if ( nextBlock )
+					range.moveToElementEditStart( nextBlock );
+			} else {
+				var newBlockDir;
+
+				if ( previousBlock ) {
+					// Do not enter this block if it's a header tag, or we are in
+					// a Shift+Enter (#77). Create a new block element instead
+					// (later in the code).
+					if ( previousBlock.is( 'li' ) || !( headerTagRegex.test( previousBlock.getName() ) || previousBlock.is( 'pre' ) ) ) {
+						// Otherwise, duplicate the previous block.
+						newBlock = previousBlock.clone();
+					}
+				} else if ( nextBlock ) {
+					newBlock = nextBlock.clone();
+				}
+
+				if ( !newBlock ) {
+					// We have already created a new list item. (#6849)
+					if ( node && node.is( 'li' ) )
+						newBlock = node;
+					else {
+						newBlock = doc.createElement( blockTag );
+						if ( previousBlock && ( newBlockDir = previousBlock.getDirection() ) )
+							newBlock.setAttribute( 'dir', newBlockDir );
+					}
+				}
+				// Force the enter block unless we're talking of a list item.
+				else if ( forceMode && !newBlock.is( 'li' ) ) {
+					newBlock.renameNode( blockTag );
+				}
+
+				// Recreate the inline elements tree, which was available
+				// before hitting enter, so the same styles will be available in
+				// the new block.
+				var elementPath = splitInfo.elementPath;
+				if ( elementPath ) {
+					for ( var i = 0, len = elementPath.elements.length; i < len; i++ ) {
+						var element = elementPath.elements[ i ];
+
+						if ( element.equals( elementPath.block ) || element.equals( elementPath.blockLimit ) )
+							break;
+
+						if ( CKEDITOR.dtd.$removeEmpty[ element.getName() ] ) {
+							element = element.clone();
+							newBlock.moveChildren( element );
+							newBlock.append( element );
+						}
+					}
+				}
+
+				newBlock.appendBogus();
+
+				if ( !newBlock.getParent() )
+					range.insertNode( newBlock );
+
+				// list item start number should not be duplicated (#7330), but we need
+				// to remove the attribute after it's onto the DOM tree because of old IEs (#7581).
+				newBlock.is( 'li' ) && newBlock.removeAttribute( 'value' );
+
+				// This is tricky, but to make the new block visible correctly
+				// we must select it.
+				// The previousBlock check has been included because it may be
+				// empty if we have fixed a block-less space (like ENTER into an
+				// empty table cell).
+				if ( CKEDITOR.env.ie && isStartOfBlock && ( !isEndOfBlock || !previousBlock.getChildCount() ) ) {
+					// Move the selection to the new block.
+					range.moveToElementEditStart( isEndOfBlock ? previousBlock : newBlock );
+					range.select();
+				}
+
+				// Move the selection to the new block.
+				range.moveToElementEditStart( isStartOfBlock && !isEndOfBlock ? nextBlock : newBlock );
+			}
+
+			range.select();
+			range.scrollIntoView();
+		},
+
+		enterBr: function( editor, mode, range, forceMode ) {
+			// Get the range for the current selection.
+			range = range || getRange( editor );
+
+			// We may not have valid ranges to work on, like when inside a
+			// contenteditable=false element.
+			if ( !range )
+				return;
+
+			var doc = range.document;
+
+			var isEndOfBlock = range.checkEndOfBlock();
+
+			var elementPath = new CKEDITOR.dom.elementPath( editor.getSelection().getStartElement() );
+
+			var startBlock = elementPath.block,
+				startBlockTag = startBlock && elementPath.block.getName();
+
+			if ( !forceMode && startBlockTag == 'li' ) {
+				enterBlock( editor, mode, range, forceMode );
+				return;
+			}
+
+			// If we are at the end of a header block.
+			if ( !forceMode && isEndOfBlock && headerTagRegex.test( startBlockTag ) ) {
+				var newBlock, newBlockDir;
+
+				if ( ( newBlockDir = startBlock.getDirection() ) ) {
+					newBlock = doc.createElement( 'div' );
+					newBlock.setAttribute( 'dir', newBlockDir );
+					newBlock.insertAfter( startBlock );
+					range.setStart( newBlock, 0 );
+				} else {
+					// Insert a <br> after the current paragraph.
+					doc.createElement( 'br' ).insertAfter( startBlock );
+
+					// A text node is required by Gecko only to make the cursor blink.
+					if ( CKEDITOR.env.gecko )
+						doc.createText( '' ).insertAfter( startBlock );
+
+					// IE has different behaviors regarding position.
+					range.setStartAt( startBlock.getNext(), CKEDITOR.env.ie ? CKEDITOR.POSITION_BEFORE_START : CKEDITOR.POSITION_AFTER_START );
+				}
+			} else {
+				var lineBreak;
+
+				// IE<8 prefers text node as line-break inside of <pre> (#4711).
+				if ( startBlockTag == 'pre' && CKEDITOR.env.ie && CKEDITOR.env.version < 8 )
+					lineBreak = doc.createText( '\r' );
+				else
+					lineBreak = doc.createElement( 'br' );
+
+				range.deleteContents();
+				range.insertNode( lineBreak );
+
+				// Old IEs have different behavior regarding position.
+				if ( !CKEDITOR.env.needsBrFiller )
+					range.setStartAt( lineBreak, CKEDITOR.POSITION_AFTER_END );
+				else {
+					// A text node is required by Gecko only to make the cursor blink.
+					// We need some text inside of it, so the bogus <br> is properly
+					// created.
+					doc.createText( '\ufeff' ).insertAfter( lineBreak );
+
+					// If we are at the end of a block, we must be sure the bogus node is available in that block.
+					if ( isEndOfBlock ) {
+						// In most situations we've got an elementPath.block (e.g. <p>), but in a
+						// blockless editor or when autoP is false that needs to be a block limit.
+						( startBlock || elementPath.blockLimit ).appendBogus();
+					}
+
+					// Now we can remove the text node contents, so the caret doesn't
+					// stop on it.
+					lineBreak.getNext().$.nodeValue = '';
+
+					range.setStartAt( lineBreak.getNext(), CKEDITOR.POSITION_AFTER_START );
+
+				}
+			}
+
+			// This collapse guarantees the cursor will be blinking.
+			range.collapse( true );
+
+			range.select();
+			range.scrollIntoView();
+		}
+	};
+
+	var plugin = CKEDITOR.plugins.enterkey,
+		enterBr = plugin.enterBr,
+		enterBlock = plugin.enterBlock,
+		headerTagRegex = /^h[1-6]$/;
+
+	function shiftEnter( editor ) {
+		// On SHIFT+ENTER:
+		// 1. We want to enforce the mode to be respected, instead
+		// of cloning the current block. (#77)
+		return enter( editor, editor.activeShiftEnterMode, 1 );
+	}
+
+	function enter( editor, mode, forceMode ) {
+		forceMode = editor.config.forceEnterMode || forceMode;
+
+		// Only effective within document.
+		if ( editor.mode != 'wysiwyg' )
+			return;
+
+		if ( !mode )
+			mode = editor.activeEnterMode;
+
+		// TODO this should be handled by setting editor.activeEnterMode on selection change.
+		// Check path block specialities:
+		// 1. Cannot be a un-splittable element, e.g. table caption;
+		var path = editor.elementPath();
+		if ( !path.isContextFor( 'p' ) ) {
+			mode = CKEDITOR.ENTER_BR;
+			forceMode = 1;
+		}
+
+		editor.fire( 'saveSnapshot' ); // Save undo step.
+
+		if ( mode == CKEDITOR.ENTER_BR )
+			enterBr( editor, mode, null, forceMode );
+		else
+			enterBlock( editor, mode, null, forceMode );
+
+		editor.fire( 'saveSnapshot' );
+	}
+
+	function getRange( editor ) {
+		// Get the selection ranges.
+		var ranges = editor.getSelection().getRanges( true );
+
+		// Delete the contents of all ranges except the first one.
+		for ( var i = ranges.length - 1; i > 0; i-- ) {
+			ranges[ i ].deleteContents();
+		}
+
+		// Return the first range.
+		return ranges[ 0 ];
+	}
+
+	function replaceRangeWithClosestEditableRoot( range ) {
+		var closestEditable = range.startContainer.getAscendant( function( node ) {
+			return node.type == CKEDITOR.NODE_ELEMENT && node.getAttribute( 'contenteditable' ) == 'true';
+		}, true );
+
+		if ( range.root.equals( closestEditable ) ) {
+			return range;
+		} else {
+			var newRange = new CKEDITOR.dom.range( closestEditable );
+
+			newRange.moveToRange( range );
+			return newRange;
+		}
+	}
+} )();
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