1 | /* |
---|
2 | * FCKeditor - The text editor for Internet - http://www.fckeditor.net |
---|
3 | * Copyright (C) 2003-2007 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 intented 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 | // Set the start boundary. |
---|
37 | eMarker = this._GetSelectionMarkerTag( true ) ; |
---|
38 | this._Range.setStart( eMarker.parentNode, FCKDomTools.GetIndexOf( eMarker ) ) ; |
---|
39 | eMarker.parentNode.removeChild( eMarker ) ; |
---|
40 | |
---|
41 | // Set the end boundary. |
---|
42 | var eMarker = this._GetSelectionMarkerTag( false ) ; |
---|
43 | this._Range.setEnd( eMarker.parentNode, FCKDomTools.GetIndexOf( eMarker ) ) ; |
---|
44 | eMarker.parentNode.removeChild( eMarker ) ; |
---|
45 | |
---|
46 | this._UpdateElementInfo() ; |
---|
47 | } |
---|
48 | else |
---|
49 | { |
---|
50 | var oControl = oSel.createRange().item(0) ; |
---|
51 | |
---|
52 | if ( oControl ) |
---|
53 | { |
---|
54 | this._Range.setStartBefore( oControl ) ; |
---|
55 | this._Range.setEndAfter( oControl ) ; |
---|
56 | this._UpdateElementInfo() ; |
---|
57 | } |
---|
58 | } |
---|
59 | } |
---|
60 | |
---|
61 | FCKDomRange.prototype.Select = function() |
---|
62 | { |
---|
63 | if ( this._Range ) |
---|
64 | { |
---|
65 | var bIsCollapsed = this.CheckIsCollapsed() ; |
---|
66 | |
---|
67 | // Create marker tags for the start and end boundaries. |
---|
68 | var eStartMarker = this._GetRangeMarkerTag( true ) ; |
---|
69 | |
---|
70 | if ( !bIsCollapsed ) |
---|
71 | var eEndMarker = this._GetRangeMarkerTag( false ) ; |
---|
72 | |
---|
73 | // Create the main range which will be used for the selection. |
---|
74 | var oIERange = this.Window.document.body.createTextRange() ; |
---|
75 | |
---|
76 | // Position the range at the start boundary. |
---|
77 | oIERange.moveToElementText( eStartMarker ) ; |
---|
78 | oIERange.moveStart( 'character', 1 ) ; |
---|
79 | |
---|
80 | if ( !bIsCollapsed ) |
---|
81 | { |
---|
82 | // Create a tool range for the end. |
---|
83 | var oIERangeEnd = this.Window.document.body.createTextRange() ; |
---|
84 | |
---|
85 | // Position the tool range at the end. |
---|
86 | oIERangeEnd.moveToElementText( eEndMarker ) ; |
---|
87 | |
---|
88 | // Move the end boundary of the main range to match the tool range. |
---|
89 | oIERange.setEndPoint( 'EndToEnd', oIERangeEnd ) ; |
---|
90 | oIERange.moveEnd( 'character', -1 ) ; |
---|
91 | } |
---|
92 | |
---|
93 | // Remove the markers (reset the position, because of the changes in the DOM tree). |
---|
94 | this._Range.setStartBefore( eStartMarker ) ; |
---|
95 | eStartMarker.parentNode.removeChild( eStartMarker ) ; |
---|
96 | |
---|
97 | if ( bIsCollapsed ) |
---|
98 | { |
---|
99 | // The following trick is needed so IE makes collapsed selections |
---|
100 | // inside empty blocks visible (expands the block). |
---|
101 | try |
---|
102 | { |
---|
103 | oIERange.pasteHTML(' ') ; |
---|
104 | oIERange.moveStart( 'character', -1 ) ; |
---|
105 | } |
---|
106 | catch (e){} |
---|
107 | oIERange.select() ; |
---|
108 | oIERange.pasteHTML('') ; |
---|
109 | } |
---|
110 | else |
---|
111 | { |
---|
112 | this._Range.setEndBefore( eEndMarker ) ; |
---|
113 | eEndMarker.parentNode.removeChild( eEndMarker ) ; |
---|
114 | oIERange.select() ; |
---|
115 | } |
---|
116 | } |
---|
117 | } |
---|
118 | |
---|
119 | FCKDomRange.prototype._GetSelectionMarkerTag = function( toStart ) |
---|
120 | { |
---|
121 | // Get a range for the start boundary. |
---|
122 | var oRange = this.Window.document.selection.createRange() ; |
---|
123 | oRange.collapse( toStart === true ) ; |
---|
124 | |
---|
125 | // Paste a marker element at the collapsed range and get it from the DOM. |
---|
126 | var sMarkerId = 'fck_dom_range_temp_' + (new Date()).valueOf() + '_' + Math.floor(Math.random()*1000) ; |
---|
127 | oRange.pasteHTML( '<span id="' + sMarkerId + '"></span>' ) ; |
---|
128 | return this.Window.document.getElementById( sMarkerId ) ; |
---|
129 | } |
---|
130 | |
---|
131 | FCKDomRange.prototype._GetRangeMarkerTag = function( toStart ) |
---|
132 | { |
---|
133 | // Get a range for the start boundary. |
---|
134 | var oRange = this._Range ; |
---|
135 | |
---|
136 | // insertNode() will add the node at the beginning of the Range, updating |
---|
137 | // the endOffset if necessary. So, we can work with the current range in this case. |
---|
138 | if ( !toStart ) |
---|
139 | { |
---|
140 | oRange = oRange.cloneRange() ; |
---|
141 | oRange.collapse( toStart === true ) ; |
---|
142 | } |
---|
143 | |
---|
144 | var eSpan = this.Window.document.createElement( 'span' ) ; |
---|
145 | eSpan.innerHTML = ' ' ; |
---|
146 | oRange.insertNode( eSpan ) ; |
---|
147 | |
---|
148 | return eSpan ; |
---|
149 | } |
---|