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
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11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
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15 : * The Original Code is mozilla.org code.
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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.
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22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
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26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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37 :
38 : #include "nsGfxRadioControlFrame.h"
39 : #include "nsIContent.h"
40 : #include "nsCOMPtr.h"
41 : #include "nsCSSRendering.h"
42 : #include "nsRenderingContext.h"
43 : #ifdef ACCESSIBILITY
44 : #include "nsAccessibilityService.h"
45 : #endif
46 : #include "nsIServiceManager.h"
47 : #include "nsITheme.h"
48 : #include "nsDisplayList.h"
49 : #include "nsCSSAnonBoxes.h"
50 :
51 : nsIFrame*
52 0 : NS_NewGfxRadioControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
53 : {
54 0 : return new (aPresShell) nsGfxRadioControlFrame(aContext);
55 : }
56 :
57 0 : NS_IMPL_FRAMEARENA_HELPERS(nsGfxRadioControlFrame)
58 :
59 0 : nsGfxRadioControlFrame::nsGfxRadioControlFrame(nsStyleContext* aContext):
60 0 : nsFormControlFrame(aContext)
61 : {
62 0 : }
63 :
64 0 : nsGfxRadioControlFrame::~nsGfxRadioControlFrame()
65 : {
66 0 : }
67 :
68 : #ifdef ACCESSIBILITY
69 : already_AddRefed<nsAccessible>
70 0 : nsGfxRadioControlFrame::CreateAccessible()
71 : {
72 0 : nsAccessibilityService* accService = nsIPresShell::AccService();
73 0 : if (accService) {
74 : return accService->CreateHTMLRadioButtonAccessible(mContent,
75 0 : PresContext()->PresShell());
76 : }
77 :
78 0 : return nsnull;
79 : }
80 : #endif
81 :
82 : //--------------------------------------------------------------
83 : // Draw the dot for a non-native radio button in the checked state.
84 : static void
85 0 : PaintCheckedRadioButton(nsIFrame* aFrame,
86 : nsRenderingContext* aCtx,
87 : const nsRect& aDirtyRect,
88 : nsPoint aPt)
89 : {
90 : // The dot is an ellipse 2px on all sides smaller than the content-box,
91 : // drawn in the foreground color.
92 0 : nsRect rect(aPt, aFrame->GetSize());
93 0 : rect.Deflate(aFrame->GetUsedBorderAndPadding());
94 : rect.Deflate(nsPresContext::CSSPixelsToAppUnits(2),
95 0 : nsPresContext::CSSPixelsToAppUnits(2));
96 :
97 0 : aCtx->SetColor(aFrame->GetStyleColor()->mColor);
98 0 : aCtx->FillEllipse(rect);
99 0 : }
100 :
101 : NS_IMETHODIMP
102 0 : nsGfxRadioControlFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
103 : const nsRect& aDirtyRect,
104 : const nsDisplayListSet& aLists)
105 : {
106 : nsresult rv = nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect,
107 0 : aLists);
108 0 : NS_ENSURE_SUCCESS(rv, rv);
109 :
110 0 : if (!IsVisibleForPainting(aBuilder))
111 0 : return NS_OK;
112 :
113 0 : if (IsThemed())
114 0 : return NS_OK; // The theme will paint the check, if any.
115 :
116 0 : bool checked = true;
117 0 : GetCurrentCheckState(&checked); // Get check state from the content model
118 0 : if (!checked)
119 0 : return NS_OK;
120 :
121 : return aLists.Content()->AppendNewToTop(new (aBuilder)
122 : nsDisplayGeneric(aBuilder, this, PaintCheckedRadioButton,
123 : "CheckedRadioButton",
124 0 : nsDisplayItem::TYPE_CHECKED_RADIOBUTTON));
125 : }
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