1 | /* |
---|
2 | * FCKeditor - The text editor for Internet - http://www.fckeditor.net |
---|
3 | * Copyright (C) 2003-2009 Frederico Caldeira Knabben |
---|
4 | * |
---|
5 | * == BEGIN LICENSE == |
---|
6 | * |
---|
7 | * Licensed under the terms of any of the following licenses at your |
---|
8 | * choice: |
---|
9 | * |
---|
10 | * - GNU General Public License Version 2 or later (the "GPL") |
---|
11 | * http://www.gnu.org/licenses/gpl.html |
---|
12 | * |
---|
13 | * - GNU Lesser General Public License Version 2.1 or later (the "LGPL") |
---|
14 | * http://www.gnu.org/licenses/lgpl.html |
---|
15 | * |
---|
16 | * - Mozilla Public License Version 1.1 or later (the "MPL") |
---|
17 | * http://www.mozilla.org/MPL/MPL-1.1.html |
---|
18 | * |
---|
19 | * == END LICENSE == |
---|
20 | * |
---|
21 | * Class for working with a selection range, much like the W3C DOM Range, but |
---|
22 | * it is not intended to be an implementation of the W3C interface. |
---|
23 | * (IE Implementation) |
---|
24 | */ |
---|
25 | |
---|
26 | FCKDomRange.prototype.MoveToSelection = function() |
---|
27 | { |
---|
28 | this.Release( true ) ; |
---|
29 | |
---|
30 | this._Range = new FCKW3CRange( this.Window.document ) ; |
---|
31 | |
---|
32 | var oSel = this.Window.document.selection ; |
---|
33 | |
---|
34 | if ( oSel.type != 'Control' ) |
---|
35 | { |
---|
36 | var eMarkerStart = this._GetSelectionMarkerTag( true ) ; |
---|
37 | var eMarkerEnd = this._GetSelectionMarkerTag( false ) ; |
---|
38 | |
---|
39 | if ( !eMarkerStart && !eMarkerEnd ) |
---|
40 | { |
---|
41 | this._Range.setStart( this.Window.document.body, 0 ) ; |
---|
42 | this._UpdateElementInfo() ; |
---|
43 | return ; |
---|
44 | } |
---|
45 | |
---|
46 | // Set the start boundary. |
---|
47 | this._Range.setStart( eMarkerStart.parentNode, FCKDomTools.GetIndexOf( eMarkerStart ) ) ; |
---|
48 | eMarkerStart.parentNode.removeChild( eMarkerStart ) ; |
---|
49 | |
---|
50 | // Set the end boundary. |
---|
51 | this._Range.setEnd( eMarkerEnd.parentNode, FCKDomTools.GetIndexOf( eMarkerEnd ) ) ; |
---|
52 | eMarkerEnd.parentNode.removeChild( eMarkerEnd ) ; |
---|
53 | |
---|
54 | this._UpdateElementInfo() ; |
---|
55 | } |
---|
56 | else |
---|
57 | { |
---|
58 | var oControl = oSel.createRange().item(0) ; |
---|
59 | |
---|
60 | if ( oControl ) |
---|
61 | { |
---|
62 | this._Range.setStartBefore( oControl ) ; |
---|
63 | this._Range.setEndAfter( oControl ) ; |
---|
64 | this._UpdateElementInfo() ; |
---|
65 | } |
---|
66 | } |
---|
67 | } |
---|
68 | |
---|
69 | FCKDomRange.prototype.Select = function( forceExpand ) |
---|
70 | { |
---|
71 | if ( this._Range ) |
---|
72 | this.SelectBookmark( this.CreateBookmark( true ), forceExpand ) ; |
---|
73 | } |
---|
74 | |
---|
75 | // Not compatible with bookmark created with CreateBookmark2. |
---|
76 | // The bookmark nodes will be deleted from the document. |
---|
77 | FCKDomRange.prototype.SelectBookmark = function( bookmark, forceExpand ) |
---|
78 | { |
---|
79 | var bIsCollapsed = this.CheckIsCollapsed() ; |
---|
80 | var bIsStartMakerAlone ; |
---|
81 | var dummySpan ; |
---|
82 | |
---|
83 | // Create marker tags for the start and end boundaries. |
---|
84 | var eStartMarker = this.GetBookmarkNode( bookmark, true ) ; |
---|
85 | |
---|
86 | if ( !eStartMarker ) |
---|
87 | return ; |
---|
88 | |
---|
89 | var eEndMarker ; |
---|
90 | if ( !bIsCollapsed ) |
---|
91 | eEndMarker = this.GetBookmarkNode( bookmark, false ) ; |
---|
92 | |
---|
93 | // Create the main range which will be used for the selection. |
---|
94 | var oIERange = this.Window.document.body.createTextRange() ; |
---|
95 | |
---|
96 | // Position the range at the start boundary. |
---|
97 | oIERange.moveToElementText( eStartMarker ) ; |
---|
98 | oIERange.moveStart( 'character', 1 ) ; |
---|
99 | |
---|
100 | if ( eEndMarker ) |
---|
101 | { |
---|
102 | // Create a tool range for the end. |
---|
103 | var oIERangeEnd = this.Window.document.body.createTextRange() ; |
---|
104 | |
---|
105 | // Position the tool range at the end. |
---|
106 | oIERangeEnd.moveToElementText( eEndMarker ) ; |
---|
107 | |
---|
108 | // Move the end boundary of the main range to match the tool range. |
---|
109 | oIERange.setEndPoint( 'EndToEnd', oIERangeEnd ) ; |
---|
110 | oIERange.moveEnd( 'character', -1 ) ; |
---|
111 | } |
---|
112 | else |
---|
113 | { |
---|
114 | bIsStartMakerAlone = ( forceExpand || !eStartMarker.previousSibling || eStartMarker.previousSibling.nodeName.toLowerCase() == 'br' ) && !eStartMarker.nextSibing ; |
---|
115 | |
---|
116 | // Append a temporary <span></span> before the selection. |
---|
117 | // This is needed to avoid IE destroying selections inside empty |
---|
118 | // inline elements, like <b></b> (#253). |
---|
119 | // It is also needed when placing the selection right after an inline |
---|
120 | // element to avoid the selection moving inside of it. |
---|
121 | dummySpan = this.Window.document.createElement( 'span' ) ; |
---|
122 | dummySpan.innerHTML = '' ; // Zero Width No-Break Space (U+FEFF). See #1359. |
---|
123 | eStartMarker.parentNode.insertBefore( dummySpan, eStartMarker ) ; |
---|
124 | |
---|
125 | if ( bIsStartMakerAlone ) |
---|
126 | { |
---|
127 | // To expand empty blocks or line spaces after <br>, we need |
---|
128 | // instead to have any char, which will be later deleted using the |
---|
129 | // selection. |
---|
130 | // \ufeff = Zero Width No-Break Space (U+FEFF). See #1359. |
---|
131 | eStartMarker.parentNode.insertBefore( this.Window.document.createTextNode( '\ufeff' ), eStartMarker ) ; |
---|
132 | } |
---|
133 | } |
---|
134 | |
---|
135 | if ( !this._Range ) |
---|
136 | this._Range = this.CreateRange() ; |
---|
137 | |
---|
138 | // Remove the markers (reset the position, because of the changes in the DOM tree). |
---|
139 | this._Range.setStartBefore( eStartMarker ) ; |
---|
140 | eStartMarker.parentNode.removeChild( eStartMarker ) ; |
---|
141 | |
---|
142 | if ( bIsCollapsed ) |
---|
143 | { |
---|
144 | if ( bIsStartMakerAlone ) |
---|
145 | { |
---|
146 | // Move the selection start to include the temporary . |
---|
147 | oIERange.moveStart( 'character', -1 ) ; |
---|
148 | |
---|
149 | oIERange.select() ; |
---|
150 | |
---|
151 | // Remove our temporary stuff. |
---|
152 | this.Window.document.selection.clear() ; |
---|
153 | } |
---|
154 | else |
---|
155 | oIERange.select() ; |
---|
156 | |
---|
157 | FCKDomTools.RemoveNode( dummySpan ) ; |
---|
158 | } |
---|
159 | else |
---|
160 | { |
---|
161 | this._Range.setEndBefore( eEndMarker ) ; |
---|
162 | eEndMarker.parentNode.removeChild( eEndMarker ) ; |
---|
163 | oIERange.select() ; |
---|
164 | } |
---|
165 | } |
---|
166 | |
---|
167 | FCKDomRange.prototype._GetSelectionMarkerTag = function( toStart ) |
---|
168 | { |
---|
169 | var doc = this.Window.document ; |
---|
170 | var selection = doc.selection ; |
---|
171 | |
---|
172 | // Get a range for the start boundary. |
---|
173 | var oRange ; |
---|
174 | |
---|
175 | // IE may throw an "unspecified error" on some cases (it happened when |
---|
176 | // loading _samples/default.html), so try/catch. |
---|
177 | try |
---|
178 | { |
---|
179 | oRange = selection.createRange() ; |
---|
180 | } |
---|
181 | catch (e) |
---|
182 | { |
---|
183 | return null ; |
---|
184 | } |
---|
185 | |
---|
186 | // IE might take the range object to the main window instead of inside the editor iframe window. |
---|
187 | // This is known to happen when the editor window has not been selected before (See #933). |
---|
188 | // We need to avoid that. |
---|
189 | if ( oRange.parentElement().document != doc ) |
---|
190 | return null ; |
---|
191 | |
---|
192 | oRange.collapse( toStart === true ) ; |
---|
193 | |
---|
194 | // Paste a marker element at the collapsed range and get it from the DOM. |
---|
195 | var sMarkerId = 'fck_dom_range_temp_' + (new Date()).valueOf() + '_' + Math.floor(Math.random()*1000) ; |
---|
196 | oRange.pasteHTML( '<span id="' + sMarkerId + '"></span>' ) ; |
---|
197 | |
---|
198 | return doc.getElementById( sMarkerId ) ; |
---|
199 | } |
---|