Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #include "nsGfxRadioControlFrame.h"
       7             : 
       8             : #include "gfx2DGlue.h"
       9             : #include "gfxContext.h"
      10             : #include "gfxUtils.h"
      11             : #include "mozilla/gfx/2D.h"
      12             : #include "mozilla/gfx/PathHelpers.h"
      13             : #include "nsLayoutUtils.h"
      14             : #include "nsDisplayList.h"
      15             : 
      16             : using namespace mozilla;
      17             : using namespace mozilla::gfx;
      18             : 
      19             : nsIFrame*
      20           0 : NS_NewGfxRadioControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
      21             : {
      22           0 :   return new (aPresShell) nsGfxRadioControlFrame(aContext);
      23             : }
      24             : 
      25           0 : NS_IMPL_FRAMEARENA_HELPERS(nsGfxRadioControlFrame)
      26             : 
      27           0 : nsGfxRadioControlFrame::nsGfxRadioControlFrame(nsStyleContext* aContext):
      28           0 :   nsFormControlFrame(aContext, kClassID)
      29             : {
      30           0 : }
      31             : 
      32           0 : nsGfxRadioControlFrame::~nsGfxRadioControlFrame()
      33             : {
      34           0 : }
      35             : 
      36             : #ifdef ACCESSIBILITY
      37             : a11y::AccType
      38           0 : nsGfxRadioControlFrame::AccessibleType()
      39             : {
      40           0 :   return a11y::eHTMLRadioButtonType;
      41             : }
      42             : #endif
      43             : 
      44             : #ifdef MOZ_WIDGET_ANDROID
      45             : 
      46             : //--------------------------------------------------------------
      47             : // Draw the dot for a non-native radio button in the checked state.
      48             : static void
      49             : PaintCheckedRadioButton(nsIFrame* aFrame,
      50             :                         DrawTarget* aDrawTarget,
      51             :                         const nsRect& aDirtyRect,
      52             :                         nsPoint aPt)
      53             : {
      54             :   // The dot is an ellipse 2px on all sides smaller than the content-box,
      55             :   // drawn in the foreground color.
      56             :   nsRect rect(aPt, aFrame->GetSize());
      57             :   rect.Deflate(aFrame->GetUsedBorderAndPadding());
      58             :   rect.Deflate(nsPresContext::CSSPixelsToAppUnits(2),
      59             :                nsPresContext::CSSPixelsToAppUnits(2));
      60             : 
      61             :   Rect devPxRect =
      62             :     ToRect(nsLayoutUtils::RectToGfxRect(rect,
      63             :                                         aFrame->PresContext()->AppUnitsPerDevPixel()));
      64             : 
      65             :   ColorPattern color(ToDeviceColor(aFrame->StyleColor()->mColor));
      66             : 
      67             :   RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
      68             :   AppendEllipseToPath(builder, devPxRect.Center(), devPxRect.Size());
      69             :   RefPtr<Path> ellipse = builder->Finish();
      70             :   aDrawTarget->Fill(ellipse, color);
      71             : }
      72             : 
      73             : void
      74             : nsGfxRadioControlFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
      75             :                                          const nsRect&           aDirtyRect,
      76             :                                          const nsDisplayListSet& aLists)
      77             : {
      78             :   nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
      79             : 
      80             :   if (!IsVisibleForPainting(aBuilder))
      81             :     return;
      82             : 
      83             :   if (IsThemed())
      84             :     return; // The theme will paint the check, if any.
      85             : 
      86             :   bool checked = true;
      87             :   GetCurrentCheckState(&checked); // Get check state from the content model
      88             :   if (!checked)
      89             :     return;
      90             : 
      91             :   aLists.Content()->AppendNewToTop(new (aBuilder)
      92             :     nsDisplayGeneric(aBuilder, this, PaintCheckedRadioButton,
      93             :                      "CheckedRadioButton",
      94             :                      nsDisplayItem::TYPE_CHECKED_RADIOBUTTON));
      95             : }
      96             : 
      97             : #endif