1 /*
  2 Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.
  3 For licensing, see LICENSE.html or http://ckeditor.com/license
  4 */
  5
  6 (function()
  7 {
  8 	function protectFormStyles( formElement )
  9 	{
 10 		if ( !formElement || formElement.type != CKEDITOR.NODE_ELEMENT || formElement.getName() != 'form' )
 11 			return [];
 12
 13 		var hijackRecord = [];
 14 		var hijackNames = [ 'style', 'className' ];
 15 		for ( var i = 0 ; i < hijackNames.length ; i++ )
 16 		{
 17 			var name = hijackNames[i];
 18 			var $node = formElement.$.elements.namedItem( name );
 19 			if ( $node )
 20 			{
 21 				var hijackNode = new CKEDITOR.dom.element( $node );
 22 				hijackRecord.push( [ hijackNode, hijackNode.nextSibling ] );
 23 				hijackNode.remove();
 24 			}
 25 		}
 26
 27 		return hijackRecord;
 28 	}
 29
 30 	function restoreFormStyles( formElement, hijackRecord )
 31 	{
 32 		if ( !formElement || formElement.type != CKEDITOR.NODE_ELEMENT || formElement.getName() != 'form' )
 33 			return;
 34
 35 		if ( hijackRecord.length > 0 )
 36 		{
 37 			for ( var i = hijackRecord.length - 1 ; i >= 0 ; i-- )
 38 			{
 39 				var node = hijackRecord[i][0];
 40 				var sibling = hijackRecord[i][1];
 41 				if ( sibling )
 42 					node.insertBefore( sibling );
 43 				else
 44 					node.appendTo( formElement );
 45 			}
 46 		}
 47 	}
 48
 49 	function saveStyles( element, isInsideEditor )
 50 	{
 51 		var data = protectFormStyles( element );
 52 		var retval = {};
 53
 54 		var $element = element.$;
 55
 56 		if ( !isInsideEditor )
 57 		{
 58 			retval[ 'class' ] = $element.className || '';
 59 			$element.className = '';
 60 		}
 61
 62 		retval.inline = $element.style.cssText || '';
 63 		if ( !isInsideEditor )		// Reset any external styles that might interfere. (#2474)
 64 			$element.style.cssText = 'position: static; overflow: visible';
 65
 66 		restoreFormStyles( data );
 67 		return retval;
 68 	}
 69
 70 	function restoreStyles( element, savedStyles )
 71 	{
 72 		var data = protectFormStyles( element );
 73 		var $element = element.$;
 74 		if ( 'class' in savedStyles )
 75 			$element.className = savedStyles[ 'class' ];
 76 		if ( 'inline' in savedStyles )
 77 			$element.style.cssText = savedStyles.inline;
 78 		restoreFormStyles( data );
 79 	}
 80
 81 	function getResizeHandler( mainWindow, editor )
 82 	{
 83 		return function()
 84 		{
 85 			var viewPaneSize = mainWindow.getViewPaneSize();
 86 			editor.resize( viewPaneSize.width, viewPaneSize.height, null, true );
 87 		};
 88 	}
 89
 90 	CKEDITOR.plugins.add( 'maximize',
 91 	{
 92 		init : function( editor )
 93 		{
 94 			var lang = editor.lang;
 95 			var mainDocument = CKEDITOR.document;
 96 			var mainWindow = mainDocument.getWindow();
 97
 98 			// Saved selection and scroll position for the editing area.
 99 			var savedSelection;
100 			var savedScroll;
101
102 			// Saved scroll position for the outer window.
103 			var outerScroll;
104
105 			// Saved resize handler function.
106 			var resizeHandler = getResizeHandler( mainWindow, editor );
107
108 			// Retain state after mode switches.
109 			var savedState = CKEDITOR.TRISTATE_OFF;
110
111 			editor.addCommand( 'maximize',
112 				{
113 					modes : { wysiwyg : 1, source : 1 },
114
115 					exec : function()
116 					{
117 						var container = editor.container.getChild( [ 0, 0 ] );
118 						var contents = editor.getThemeSpace( 'contents' );
119
120 						// Save current selection and scroll position in editing area.
121 						if ( editor.mode == 'wysiwyg' )
122 						{
123 							savedSelection = editor.getSelection().getRanges();
124 							savedScroll = mainWindow.getScrollPosition();
125 						}
126 						else
127 						{
128 							var $textarea = editor.textarea.$;
129 							savedSelection = !CKEDITOR.env.ie && [ $textarea.selectionStart, $textarea.selectionEnd ];
130 							savedScroll = [ $textarea.scrollLeft, $textarea.scrollTop ];
131 						}
132
133 						if ( this.state == CKEDITOR.TRISTATE_OFF )		// Go fullscreen if the state is off.
134 						{
135 							// Add event handler for resizing.
136 							mainWindow.on( 'resize', resizeHandler );
137
138 							// Save the scroll bar position.
139 							outerScroll = mainWindow.getScrollPosition();
140
141 							// Save and reset the styles for the entire node tree.
142 							var currentNode = editor.container;
143 							while ( ( currentNode = currentNode.getParent() ) )
144 							{
145 								currentNode.setCustomData( 'maximize_saved_styles', saveStyles( currentNode ) );
146 								currentNode.setStyle( 'z-index', editor.config.baseFloatZIndex - 1 );
147 							}
148 							contents.setCustomData( 'maximize_saved_styles', saveStyles( contents, true ) );
149 							container.setCustomData( 'maximize_saved_styles', saveStyles( container, true ) );
150
151 							// Hide scroll bars.
152 							if ( CKEDITOR.env.ie )
153 							{
154 								mainDocument.$.documentElement.style.overflow =
155 									mainDocument.getBody().$.style.overflow = 'hidden';
156 							}
157 							else
158 							{
159 								mainDocument.getBody().setStyles(
160 									{
161 										overflow : 'hidden',
162 										width : '0px',
163 										height : '0px'
164 									} );
165 							}
166
167 							// Scroll to the top left.
168 							mainWindow.$.scrollTo( 0, 0 );
169
170 							// Resize and move to top left.
171 							var viewPaneSize = mainWindow.getViewPaneSize();
172 							container.setStyle( 'position', 'absolute' );
173 							container.$.offsetLeft;			// SAFARI BUG: See #2066.
174 							container.setStyles(
175 								{
176 									'z-index' : editor.config.baseFloatZIndex - 1,
177 									left : '0px',
178 									top : '0px'
179 								} );
180 							editor.resize( viewPaneSize.width, viewPaneSize.height, null, true );
181
182 							// Still not top left? Fix it. (Bug #174)
183 							var offset = container.getDocumentPosition();
184 							container.setStyles(
185 								{
186 									left : ( -1 * offset.x ) + 'px',
187 									top : ( -1 * offset.y ) + 'px'
188 								} );
189
190 							// Add cke_maximized class.
191 							container.addClass( 'cke_maximized' );
192 						}
193 						else if ( this.state == CKEDITOR.TRISTATE_ON )	// Restore from fullscreen if the state is on.
194 						{
195 							// Remove event handler for resizing.
196 							mainWindow.removeListener( 'resize', resizeHandler );
197
198 							// Restore CSS styles for the entire node tree.
199 							var editorElements = [ contents, container ];
200 							for ( var i = 0 ; i < editorElements.length ; i++ )
201 							{
202 								restoreStyles( editorElements[i], editorElements[i].getCustomData( 'maximize_saved_styles' ) );
203 								editorElements[i].removeCustomData( 'maximize_saved_styles' );
204 							}
205
206 							currentNode = editor.container;
207 							while ( ( currentNode = currentNode.getParent() ) )
208 							{
209 								restoreStyles( currentNode, currentNode.getCustomData( 'maximize_saved_styles' ) );
210 								currentNode.removeCustomData( 'maximize_saved_styles' );
211 							}
212
213 							// Restore the window scroll position.
214 							mainWindow.$.scrollTo( outerScroll.x, outerScroll.y );
215
216 							// Remove cke_maximized class.
217 							container.removeClass( 'cke_maximized' );
218
219 							// Emit a resize event, because this time the size is modified in
220 							// restoreStyles.
221 							editor.fire( 'resize' );
222 						}
223
224 						this.toggleState();
225
226 						// Restore selection and scroll position in editing area.
227 						if ( editor.mode == 'wysiwyg' )
228 						{
229 							editor.getSelection().selectRanges( savedSelection );
230
231 							var element = editor.getSelection().getStartElement();
232 							if ( element )
233 								element.scrollIntoView( true );
234 							else
235 								mainWindow.$.scrollTo( savedScroll.x, savedScroll.y );
236 						}
237 						else
238 						{
239 							if ( savedSelection )
240 							{
241 								$textarea.selectionStart = savedSelection[0];
242 								$textarea.selectionEnd = savedSelection[1];
243 							}
244 							$textarea.scrollLeft = savedScroll[0];
245 							$textarea.scrollTop = savedScroll[1];
246 						}
247
248 						savedSelection = savedScroll = null;
249 						savedState = this.state;
250 					},
251 					canUndo : false
252 				} );
253
254 			editor.ui.addButton( 'Maximize',
255 				{
256 					label : lang.maximize,
257 					command : 'maximize'
258 				} );
259
260 			// Restore the command state after mode change.
261 			editor.on( 'mode', function()
262 				{
263 					editor.getCommand( 'maximize' ).setState( savedState );
264 				}, null, null, 100 );
265 		}
266 	} );
267 })();
268