1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
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33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef nsFormControlFrame_h___
39 : #define nsFormControlFrame_h___
40 :
41 : #include "nsIFormControlFrame.h"
42 : #include "nsLeafFrame.h"
43 :
44 : /**
45 : * nsFormControlFrame is the base class for radio buttons and
46 : * checkboxes. It also has two static methods (RegUnRegAccessKey and
47 : * GetScreenHeight) that are used by other form controls.
48 : */
49 : class nsFormControlFrame : public nsLeafFrame,
50 : public nsIFormControlFrame
51 : {
52 : public:
53 : /**
54 : * Main constructor
55 : * @param aContent the content representing this frame
56 : * @param aParentFrame the parent frame
57 : */
58 : nsFormControlFrame(nsStyleContext*);
59 :
60 0 : virtual bool IsFrameOfType(PRUint32 aFlags) const
61 : {
62 : return nsLeafFrame::IsFrameOfType(aFlags &
63 0 : ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
64 : }
65 :
66 : NS_DECL_QUERYFRAME
67 : NS_DECL_FRAMEARENA_HELPERS
68 :
69 : /**
70 : * Respond to a gui event
71 : * @see nsIFrame::HandleEvent
72 : */
73 : NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
74 : nsGUIEvent* aEvent,
75 : nsEventStatus* aEventStatus);
76 :
77 : virtual nscoord GetBaseline() const;
78 :
79 : /**
80 : * Respond to the request to resize and/or reflow
81 : * @see nsIFrame::Reflow
82 : */
83 : NS_IMETHOD Reflow(nsPresContext* aCX,
84 : nsHTMLReflowMetrics& aDesiredSize,
85 : const nsHTMLReflowState& aReflowState,
86 : nsReflowStatus& aStatus);
87 :
88 : virtual void DestroyFrom(nsIFrame* aDestructRoot);
89 :
90 : // new behavior
91 :
92 : virtual void SetFocus(bool aOn = true, bool aRepaint = false);
93 :
94 : // nsIFormControlFrame
95 : virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue);
96 :
97 : virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const;
98 :
99 : // AccessKey Helper function
100 : static nsresult RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg);
101 :
102 : /**
103 : * Returns the usable screen rect in app units, eg the rect where we can
104 : * draw dropdowns.
105 : */
106 : static nsRect GetUsableScreenRect(nsPresContext* aPresContext);
107 :
108 : protected:
109 :
110 : virtual ~nsFormControlFrame();
111 :
112 : virtual nscoord GetIntrinsicWidth();
113 : virtual nscoord GetIntrinsicHeight();
114 :
115 : //
116 : //-------------------------------------------------------------------------------------
117 : // Utility methods for managing checkboxes and radiobuttons
118 : //-------------------------------------------------------------------------------------
119 : //
120 : /**
121 : * Get the state of the checked attribute.
122 : * @param aState set to true if the checked attribute is set,
123 : * false if the checked attribute has been removed
124 : */
125 :
126 : void GetCurrentCheckState(bool* aState);
127 : };
128 :
129 : #endif
130 :
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