The Tor Browser: layout/generic/nsBulletFrame.cpp@b8a032363ba2 (annotated)

layout/generic/nsBulletFrame.cpp@b8a032363ba2 (annotated)

layout/generic/nsBulletFrame.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /* rendering object for list-item bullets */
 #include "nsBulletFrame.h"
 #include "mozilla/MathAlgorithms.h"
 #include "nsCOMPtr.h"
 #include "nsGkAtoms.h"
 #include "nsGenericHTMLElement.h"
 #include "nsAttrValueInlines.h"
 #include "nsPresContext.h"
 #include "nsIPresShell.h"
 #include "nsIDocument.h"
 #include "nsRenderingContext.h"
 #include "prprf.h"
 #include "nsDisplayList.h"
 #include "nsCounterManager.h"
 #include "imgIContainer.h"
 #include "imgRequestProxy.h"
 #include "nsIURI.h"
 #include <algorithm>
 #ifdef ACCESSIBILITY
 #include "nsAccessibilityService.h"
 #endif
 using namespace mozilla;
 NS_DECLARE_FRAME_PROPERTY(FontSizeInflationProperty, nullptr)
 NS_IMPL_FRAMEARENA_HELPERS(nsBulletFrame)
 #ifdef DEBUG
 NS_QUERYFRAME_HEAD(nsBulletFrame)
   NS_QUERYFRAME_ENTRY(nsBulletFrame)
 NS_QUERYFRAME_TAIL_INHERITING(nsFrame)
 #endif
 nsBulletFrame::~nsBulletFrame()
 {
 }
 void
 nsBulletFrame::DestroyFrom(nsIFrame* aDestructRoot)
 {
   // Stop image loading first
   if (mImageRequest) {
     // Deregister our image request from the refresh driver
     nsLayoutUtils::DeregisterImageRequest(PresContext(),
                                           mImageRequest,
                                           &mRequestRegistered);
     mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
     mImageRequest = nullptr;
   }
   if (mListener) {
     mListener->SetFrame(nullptr);
   }
   // Let base class do the rest
   nsFrame::DestroyFrom(aDestructRoot);
 }
 #ifdef DEBUG_FRAME_DUMP
 nsresult
 nsBulletFrame::GetFrameName(nsAString& aResult) const
 {
   return MakeFrameName(NS_LITERAL_STRING("Bullet"), aResult);
 }
 #endif
 nsIAtom*
 nsBulletFrame::GetType() const
 {
   return nsGkAtoms::bulletFrame;
 }
 bool
 nsBulletFrame::IsEmpty()
 {
   return IsSelfEmpty();
 }
 bool
 nsBulletFrame::IsSelfEmpty()
 {
   return StyleList()->mListStyleType == NS_STYLE_LIST_STYLE_NONE;
 }
 /* virtual */ void
 nsBulletFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
 {
   nsFrame::DidSetStyleContext(aOldStyleContext);
   imgRequestProxy *newRequest = StyleList()->GetListStyleImage();
   if (newRequest) {
     if (!mListener) {
       mListener = new nsBulletListener();
       mListener->SetFrame(this);
     }
     bool needNewRequest = true;
     if (mImageRequest) {
       // Reload the image, maybe...
       nsCOMPtr<nsIURI> oldURI;
       mImageRequest->GetURI(getter_AddRefs(oldURI));
       nsCOMPtr<nsIURI> newURI;
       newRequest->GetURI(getter_AddRefs(newURI));
       if (oldURI && newURI) {
         bool same;
         newURI->Equals(oldURI, &same);
         if (same) {
           needNewRequest = false;
         }
       }
     }
     if (needNewRequest) {
       nsRefPtr<imgRequestProxy> oldRequest = mImageRequest;
       newRequest->Clone(mListener, getter_AddRefs(mImageRequest));
       // Deregister the old request. We wait until after Clone is done in case
       // the old request and the new request are the same underlying image
       // accessed via different URLs.
       if (oldRequest) {
         nsLayoutUtils::DeregisterImageRequest(PresContext(), oldRequest,
                                               &mRequestRegistered);
         oldRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
         oldRequest = nullptr;
       }
       // Register the new request.
       if (mImageRequest) {
         nsLayoutUtils::RegisterImageRequestIfAnimated(PresContext(),
                                                       mImageRequest,
                                                       &mRequestRegistered);
       }
     }
   } else {
     // No image request on the new style context
     if (mImageRequest) {
       nsLayoutUtils::DeregisterImageRequest(PresContext(), mImageRequest,
                                             &mRequestRegistered);
       mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
       mImageRequest = nullptr;
     }
   }
 #ifdef ACCESSIBILITY
   // Update the list bullet accessible. If old style list isn't available then
   // no need to update the accessible tree because it's not created yet.
   if (aOldStyleContext) {
     nsAccessibilityService* accService = nsIPresShell::AccService();
     if (accService) {
       const nsStyleList* oldStyleList = aOldStyleContext->PeekStyleList();
       if (oldStyleList) {
         bool hadBullet = oldStyleList->GetListStyleImage() ||
             oldStyleList->mListStyleType != NS_STYLE_LIST_STYLE_NONE;
         const nsStyleList* newStyleList = StyleList();
         bool hasBullet = newStyleList->GetListStyleImage() ||
             newStyleList->mListStyleType != NS_STYLE_LIST_STYLE_NONE;
         if (hadBullet != hasBullet) {
           accService->UpdateListBullet(PresContext()->GetPresShell(), mContent,
                                        hasBullet);
         }
       }
     }
   }
 #endif
 }
 class nsDisplayBulletGeometry : public nsDisplayItemGenericGeometry
 {
 public:
   nsDisplayBulletGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder)
     : nsDisplayItemGenericGeometry(aItem, aBuilder)
   {
     nsBulletFrame* f = static_cast<nsBulletFrame*>(aItem->Frame());
     mOrdinal = f->GetOrdinal();
   }
   int32_t mOrdinal;
 };
 class nsDisplayBullet : public nsDisplayItem {
 public:
   nsDisplayBullet(nsDisplayListBuilder* aBuilder, nsBulletFrame* aFrame) :
     nsDisplayItem(aBuilder, aFrame) {
     MOZ_COUNT_CTOR(nsDisplayBullet);
   }
 #ifdef NS_BUILD_REFCNT_LOGGING
   virtual ~nsDisplayBullet() {
     MOZ_COUNT_DTOR(nsDisplayBullet);
   }
 #endif
   virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
                            bool* aSnap) MOZ_OVERRIDE
   {
     *aSnap = false;
     return mFrame->GetVisualOverflowRectRelativeToSelf() + ToReferenceFrame();
   }
   virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
                        HitTestState* aState,
                        nsTArray<nsIFrame*> *aOutFrames) MOZ_OVERRIDE {
     aOutFrames->AppendElement(mFrame);
   }
   virtual void Paint(nsDisplayListBuilder* aBuilder,
                      nsRenderingContext* aCtx) MOZ_OVERRIDE;
   NS_DISPLAY_DECL_NAME("Bullet", TYPE_BULLET)
   virtual nsRect GetComponentAlphaBounds(nsDisplayListBuilder* aBuilder) MOZ_OVERRIDE
   {
     bool snap;
     return GetBounds(aBuilder, &snap);
   }
   virtual nsDisplayItemGeometry* AllocateGeometry(nsDisplayListBuilder* aBuilder) MOZ_OVERRIDE
   {
     return new nsDisplayBulletGeometry(this, aBuilder);
   }
   virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
                                          const nsDisplayItemGeometry* aGeometry,
                                          nsRegion *aInvalidRegion) MOZ_OVERRIDE
   {
     const nsDisplayBulletGeometry* geometry = static_cast<const nsDisplayBulletGeometry*>(aGeometry);
     nsBulletFrame* f = static_cast<nsBulletFrame*>(mFrame);
     if (f->GetOrdinal() != geometry->mOrdinal) {
       bool snap;
       aInvalidRegion->Or(geometry->mBounds, GetBounds(aBuilder, &snap));
       return;
     }
     nsCOMPtr<imgIContainer> image = f->GetImage();
     if (aBuilder->ShouldSyncDecodeImages() && image && !image->IsDecoded()) {
       // If we are going to do a sync decode and we are not decoded then we are
       // going to be drawing something different from what is currently there,
       // so we add our bounds to the invalid region.
       bool snap;
       aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
     }
     return nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
   }
 };
 void nsDisplayBullet::Paint(nsDisplayListBuilder* aBuilder,
                             nsRenderingContext* aCtx)
 {
   uint32_t flags = imgIContainer::FLAG_NONE;
   if (aBuilder->ShouldSyncDecodeImages()) {
     flags |= imgIContainer::FLAG_SYNC_DECODE;
   }
   static_cast<nsBulletFrame*>(mFrame)->
     PaintBullet(*aCtx, ToReferenceFrame(), mVisibleRect, flags);
 }
 void
 nsBulletFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
                                 const nsRect&           aDirtyRect,
                                 const nsDisplayListSet& aLists)
 {
   if (!IsVisibleForPainting(aBuilder))
     return;
   DO_GLOBAL_REFLOW_COUNT_DSP("nsBulletFrame");
   aLists.Content()->AppendNewToTop(
     new (aBuilder) nsDisplayBullet(aBuilder, this));
 }
 void
 nsBulletFrame::PaintBullet(nsRenderingContext& aRenderingContext, nsPoint aPt,
                            const nsRect& aDirtyRect, uint32_t aFlags)
 {
   const nsStyleList* myList = StyleList();
   uint8_t listStyleType = myList->mListStyleType;
   if (myList->GetListStyleImage() && mImageRequest) {
     uint32_t status;
     mImageRequest->GetImageStatus(&status);
     if (status & imgIRequest::STATUS_LOAD_COMPLETE &&
         !(status & imgIRequest::STATUS_ERROR)) {
       nsCOMPtr<imgIContainer> imageCon;
       mImageRequest->GetImage(getter_AddRefs(imageCon));
       if (imageCon) {
         nsRect dest(mPadding.left, mPadding.top,
                     mRect.width - (mPadding.left + mPadding.right),
                     mRect.height - (mPadding.top + mPadding.bottom));
         nsLayoutUtils::DrawSingleImage(&aRenderingContext,
              imageCon, nsLayoutUtils::GetGraphicsFilterForFrame(this),
              dest + aPt, aDirtyRect, nullptr, aFlags);
         return;
       }
     }
   }
   nsRefPtr<nsFontMetrics> fm;
   aRenderingContext.SetColor(nsLayoutUtils::GetColor(this, eCSSProperty_color));
   mTextIsRTL = false;
   nsAutoString text;
   switch (listStyleType) {
   case NS_STYLE_LIST_STYLE_NONE:
     break;
   default:
   case NS_STYLE_LIST_STYLE_DISC:
     aRenderingContext.FillEllipse(mPadding.left + aPt.x, mPadding.top + aPt.y,
                                   mRect.width - (mPadding.left + mPadding.right),
                                   mRect.height - (mPadding.top + mPadding.bottom));
     break;
   case NS_STYLE_LIST_STYLE_CIRCLE:
     aRenderingContext.DrawEllipse(mPadding.left + aPt.x, mPadding.top + aPt.y,
                                   mRect.width - (mPadding.left + mPadding.right),
                                   mRect.height - (mPadding.top + mPadding.bottom));
     break;
   case NS_STYLE_LIST_STYLE_SQUARE:
     {
       nsRect rect(aPt, mRect.Size());
       rect.Deflate(mPadding);
       // Snap the height and the width of the rectangle to device pixels,
       // and then center the result within the original rectangle, so that
       // all square bullets at the same font size have the same visual
       // size (bug 376690).
       // FIXME: We should really only do this if we're not transformed
       // (like gfxContext::UserToDevicePixelSnapped does).
       nsPresContext *pc = PresContext();
       nsRect snapRect(rect.x, rect.y,
                       pc->RoundAppUnitsToNearestDevPixels(rect.width),
                       pc->RoundAppUnitsToNearestDevPixels(rect.height));
       snapRect.MoveBy((rect.width - snapRect.width) / 2,
                       (rect.height - snapRect.height) / 2);
       aRenderingContext.FillRect(snapRect.x, snapRect.y,
                                  snapRect.width, snapRect.height);
     }
     break;
   case NS_STYLE_LIST_STYLE_DECIMAL:
   case NS_STYLE_LIST_STYLE_DECIMAL_LEADING_ZERO:
   case NS_STYLE_LIST_STYLE_CJK_DECIMAL:
   case NS_STYLE_LIST_STYLE_LOWER_ROMAN:
   case NS_STYLE_LIST_STYLE_UPPER_ROMAN:
   case NS_STYLE_LIST_STYLE_LOWER_ALPHA:
   case NS_STYLE_LIST_STYLE_UPPER_ALPHA:
   case NS_STYLE_LIST_STYLE_LOWER_GREEK:
   case NS_STYLE_LIST_STYLE_HEBREW:
   case NS_STYLE_LIST_STYLE_ARMENIAN:
   case NS_STYLE_LIST_STYLE_GEORGIAN:
   case NS_STYLE_LIST_STYLE_CJK_IDEOGRAPHIC:
   case NS_STYLE_LIST_STYLE_HIRAGANA:
   case NS_STYLE_LIST_STYLE_KATAKANA:
   case NS_STYLE_LIST_STYLE_HIRAGANA_IROHA:
   case NS_STYLE_LIST_STYLE_KATAKANA_IROHA:
   case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
   case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
   case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
   case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
   case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
   case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
   case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
   case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
   case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_INFORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_FORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_INFORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_FORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_INFORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_FORMAL:
   case NS_STYLE_LIST_STYLE_MOZ_CJK_HEAVENLY_STEM:
   case NS_STYLE_LIST_STYLE_MOZ_CJK_EARTHLY_BRANCH:
   case NS_STYLE_LIST_STYLE_MOZ_ARABIC_INDIC:
   case NS_STYLE_LIST_STYLE_MOZ_PERSIAN:
   case NS_STYLE_LIST_STYLE_MOZ_URDU:
   case NS_STYLE_LIST_STYLE_MOZ_DEVANAGARI:
   case NS_STYLE_LIST_STYLE_MOZ_GURMUKHI:
   case NS_STYLE_LIST_STYLE_MOZ_GUJARATI:
   case NS_STYLE_LIST_STYLE_MOZ_ORIYA:
   case NS_STYLE_LIST_STYLE_MOZ_KANNADA:
   case NS_STYLE_LIST_STYLE_MOZ_MALAYALAM:
   case NS_STYLE_LIST_STYLE_MOZ_BENGALI:
   case NS_STYLE_LIST_STYLE_MOZ_TAMIL:
   case NS_STYLE_LIST_STYLE_MOZ_TELUGU:
   case NS_STYLE_LIST_STYLE_MOZ_THAI:
   case NS_STYLE_LIST_STYLE_MOZ_LAO:
   case NS_STYLE_LIST_STYLE_MOZ_MYANMAR:
   case NS_STYLE_LIST_STYLE_MOZ_KHMER:
   case NS_STYLE_LIST_STYLE_MOZ_HANGUL:
   case NS_STYLE_LIST_STYLE_MOZ_HANGUL_CONSONANT:
   case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME:
   case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_NUMERIC:
   case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_AM:
   case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_TI_ER:
   case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_TI_ET:
     nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fm),
                                           GetFontSizeInflation());
     GetListItemText(*myList, text);
     aRenderingContext.SetFont(fm);
     nscoord ascent = fm->MaxAscent();
     aRenderingContext.SetTextRunRTL(mTextIsRTL);
     aRenderingContext.DrawString(text, mPadding.left + aPt.x,
                                  mPadding.top + aPt.y + ascent);
     break;
   }
 }
 int32_t
 nsBulletFrame::SetListItemOrdinal(int32_t aNextOrdinal,
                                   bool* aChanged,
                                   int32_t aIncrement)
 {
   MOZ_ASSERT(aIncrement == 1 || aIncrement == -1,
              "We shouldn't have weird increments here");
   // Assume that the ordinal comes from the caller
   int32_t oldOrdinal = mOrdinal;
   mOrdinal = aNextOrdinal;
   // Try to get value directly from the list-item, if it specifies a
   // value attribute. Note: we do this with our parent's content
   // because our parent is the list-item.
   nsIContent* parentContent = mParent->GetContent();
   if (parentContent) {
     nsGenericHTMLElement *hc =
       nsGenericHTMLElement::FromContent(parentContent);
     if (hc) {
       const nsAttrValue* attr = hc->GetParsedAttr(nsGkAtoms::value);
       if (attr && attr->Type() == nsAttrValue::eInteger) {
         // Use ordinal specified by the value attribute
         mOrdinal = attr->GetIntegerValue();
       }
     }
   }
   *aChanged = oldOrdinal != mOrdinal;
   return nsCounterManager::IncrementCounter(mOrdinal, aIncrement);
 }
 // XXX change roman/alpha to use unsigned math so that maxint and
 // maxnegint will work
 /**
  * For all functions below, a return value of true means that we
  * could represent mOrder in the desired numbering system.  false
  * means we had to fall back to decimal
  */
 static bool DecimalToText(int32_t ordinal, nsString& result)
 {
    char cbuf[40];
    PR_snprintf(cbuf, sizeof(cbuf), "%ld", ordinal);
    result.AppendASCII(cbuf);
    return true;
 }
 static bool DecimalLeadingZeroToText(int32_t ordinal, nsString& result)
 {
    char cbuf[40];
    PR_snprintf(cbuf, sizeof(cbuf), "%02ld", ordinal);
    result.AppendASCII(cbuf);
    return true;
 }
 static bool OtherDecimalToText(int32_t ordinal, char16_t zeroChar, nsString& result)
 {
    char16_t diff = zeroChar - char16_t('0');
    // We're going to be appending to whatever is in "result" already, so make
    // sure to only munge the new bits.  Note that we can't just grab the pointer
    // to the new stuff here, since appending to the string can realloc.
    size_t offset = result.Length();
    DecimalToText(ordinal, result);
    char16_t* p = result.BeginWriting() + offset;
    if (ordinal < 0) {
      // skip the leading '-'
      ++p;
    }
    for(; '\0' != *p ; p++)
       *p += diff;
    return true;
 }
 static bool TamilToText(int32_t ordinal,  nsString& result)
 {
    if (ordinal < 1 || ordinal > 9999) {
      // Can't do those in this system.
      return false;
    }
    char16_t diff = 0x0BE6 - char16_t('0');
    // We're going to be appending to whatever is in "result" already, so make
    // sure to only munge the new bits.  Note that we can't just grab the pointer
    // to the new stuff here, since appending to the string can realloc.
    size_t offset = result.Length();
    DecimalToText(ordinal, result);
    char16_t* p = result.BeginWriting() + offset;
    for(; '\0' != *p ; p++)
       if(*p != char16_t('0'))
          *p += diff;
    return true;
 }
 static const char gLowerRomanCharsA[] = "ixcm";
 static const char gUpperRomanCharsA[] = "IXCM";
 static const char gLowerRomanCharsB[] = "vld";
 static const char gUpperRomanCharsB[] = "VLD";
 static bool RomanToText(int32_t ordinal, nsString& result, const char* achars, const char* bchars)
 {
   if (ordinal < 1 || ordinal > 3999) {
     return false;
   }
   nsAutoString addOn, decStr;
   decStr.AppendInt(ordinal, 10);
   int len = decStr.Length();
   const char16_t* dp = decStr.get();
   const char16_t* end = dp + len;
   int romanPos = len;
   int n;
   for (; dp < end; dp++) {
     romanPos--;
     addOn.SetLength(0);
     switch(*dp) {
       case '3':
         addOn.Append(char16_t(achars[romanPos]));
         // FALLTHROUGH
       case '2':
         addOn.Append(char16_t(achars[romanPos]));
         // FALLTHROUGH
       case '1':
         addOn.Append(char16_t(achars[romanPos]));
         break;
       case '4':
         addOn.Append(char16_t(achars[romanPos]));
         // FALLTHROUGH
       case '5': case '6':
       case '7': case '8':
         addOn.Append(char16_t(bchars[romanPos]));
         for(n=0;'5'+n<*dp;n++) {
           addOn.Append(char16_t(achars[romanPos]));
         }
         break;
       case '9':
         addOn.Append(char16_t(achars[romanPos]));
         addOn.Append(char16_t(achars[romanPos+1]));
         break;
       default:
         break;
     }
     result.Append(addOn);
   }
   return true;
 }
 #define ALPHA_SIZE 26
 static const char16_t gLowerAlphaChars[ALPHA_SIZE]  =
 {
 x0061, 0x0062, 0x0063, 0x0064, 0x0065, // A   B   C   D   E
 x0066, 0x0067, 0x0068, 0x0069, 0x006A, // F   G   H   I   J
 x006B, 0x006C, 0x006D, 0x006E, 0x006F, // K   L   M   N   O
 x0070, 0x0071, 0x0072, 0x0073, 0x0074, // P   Q   R   S   T
 x0075, 0x0076, 0x0077, 0x0078, 0x0079, // U   V   W   X   Y
 x007A                                  // Z
 };
 static const char16_t gUpperAlphaChars[ALPHA_SIZE]  =
 {
 x0041, 0x0042, 0x0043, 0x0044, 0x0045, // A   B   C   D   E
 x0046, 0x0047, 0x0048, 0x0049, 0x004A, // F   G   H   I   J
 x004B, 0x004C, 0x004D, 0x004E, 0x004F, // K   L   M   N   O
 x0050, 0x0051, 0x0052, 0x0053, 0x0054, // P   Q   R   S   T
 x0055, 0x0056, 0x0057, 0x0058, 0x0059, // U   V   W   X   Y
 x005A                                  // Z
 };
 #define KATAKANA_CHARS_SIZE 48
 // Page 94 Writing Systems of The World
 // after modification by momoi
 static const char16_t gKatakanaChars[KATAKANA_CHARS_SIZE] =
 {
 x30A2, 0x30A4, 0x30A6, 0x30A8, 0x30AA, //  a    i   u    e    o
 x30AB, 0x30AD, 0x30AF, 0x30B1, 0x30B3, // ka   ki  ku   ke   ko
 x30B5, 0x30B7, 0x30B9, 0x30BB, 0x30BD, // sa  shi  su   se   so
 x30BF, 0x30C1, 0x30C4, 0x30C6, 0x30C8, // ta  chi tsu   te   to
 x30CA, 0x30CB, 0x30CC, 0x30CD, 0x30CE, // na   ni  nu   ne   no
 x30CF, 0x30D2, 0x30D5, 0x30D8, 0x30DB, // ha   hi  hu   he   ho
 x30DE, 0x30DF, 0x30E0, 0x30E1, 0x30E2, // ma   mi  mu   me   mo
 x30E4,         0x30E6,         0x30E8, // ya       yu        yo
 x30E9, 0x30EA, 0x30EB, 0x30EC, 0x30ED, // ra   ri  ru   re   ro
 x30EF, 0x30F0,         0x30F1, 0x30F2, // wa (w)i     (w)e (w)o
 x30F3                                  //  n
 };
 #define HIRAGANA_CHARS_SIZE 48
 static const char16_t gHiraganaChars[HIRAGANA_CHARS_SIZE] =
 {
 x3042, 0x3044, 0x3046, 0x3048, 0x304A, //  a    i    u    e    o
 x304B, 0x304D, 0x304F, 0x3051, 0x3053, // ka   ki   ku   ke   ko
 x3055, 0x3057, 0x3059, 0x305B, 0x305D, // sa  shi   su   se   so
 x305F, 0x3061, 0x3064, 0x3066, 0x3068, // ta  chi  tsu   te   to
 x306A, 0x306B, 0x306C, 0x306D, 0x306E, // na   ni   nu   ne   no
 x306F, 0x3072, 0x3075, 0x3078, 0x307B, // ha   hi   hu   he   ho
 x307E, 0x307F, 0x3080, 0x3081, 0x3082, // ma   mi   mu   me   mo
 x3084,         0x3086,         0x3088, // ya        yu       yo
 x3089, 0x308A, 0x308B, 0x308C, 0x308D, // ra   ri   ru   re   ro
 x308F, 0x3090,         0x3091, 0x3092, // wa (w)i      (w)e (w)o
 x3093                                  // n
 };
 #define HIRAGANA_IROHA_CHARS_SIZE 47
 // Page 94 Writing Systems of The World
 static const char16_t gHiraganaIrohaChars[HIRAGANA_IROHA_CHARS_SIZE] =
 {
 x3044, 0x308D, 0x306F, 0x306B, 0x307B, //  i   ro   ha   ni   ho
 x3078, 0x3068, 0x3061, 0x308A, 0x306C, // he   to  chi   ri   nu
 x308B, 0x3092, 0x308F, 0x304B, 0x3088, // ru (w)o   wa   ka   yo
 x305F, 0x308C, 0x305D, 0x3064, 0x306D, // ta   re   so  tsu   ne
 x306A, 0x3089, 0x3080, 0x3046, 0x3090, // na   ra   mu    u (w)i
 x306E, 0x304A, 0x304F, 0x3084, 0x307E, // no    o   ku   ya   ma
 x3051, 0x3075, 0x3053, 0x3048, 0x3066, // ke   hu   ko    e   te
 x3042, 0x3055, 0x304D, 0x3086, 0x3081, //  a   sa   ki   yu   me
 x307F, 0x3057, 0x3091, 0x3072, 0x3082, // mi  shi (w)e   hi   mo
 x305B, 0x3059                          // se   su
 };
 #define KATAKANA_IROHA_CHARS_SIZE 47
 static const char16_t gKatakanaIrohaChars[KATAKANA_IROHA_CHARS_SIZE] =
 {
 x30A4, 0x30ED, 0x30CF, 0x30CB, 0x30DB, //  i   ro   ha   ni   ho
 x30D8, 0x30C8, 0x30C1, 0x30EA, 0x30CC, // he   to  chi   ri   nu
 x30EB, 0x30F2, 0x30EF, 0x30AB, 0x30E8, // ru (w)o   wa   ka   yo
 x30BF, 0x30EC, 0x30BD, 0x30C4, 0x30CD, // ta   re   so  tsu   ne
 x30CA, 0x30E9, 0x30E0, 0x30A6, 0x30F0, // na   ra   mu    u (w)i
 x30CE, 0x30AA, 0x30AF, 0x30E4, 0x30DE, // no    o   ku   ya   ma
 x30B1, 0x30D5, 0x30B3, 0x30A8, 0x30C6, // ke   hu   ko    e   te
 x30A2, 0x30B5, 0x30AD, 0x30E6, 0x30E1, //  a   sa   ki   yu   me
 x30DF, 0x30B7, 0x30F1, 0x30D2, 0x30E2, // mi  shi (w)e   hi   mo
 x30BB, 0x30B9                          // se   su
 };
 #define LOWER_GREEK_CHARS_SIZE 24
 // Note: 0x03C2 GREEK FINAL SIGMA is not used in here....
 static const char16_t gLowerGreekChars[LOWER_GREEK_CHARS_SIZE] =
 {
 x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, // alpha  beta  gamma  delta  epsilon
 x03B6, 0x03B7, 0x03B8, 0x03B9, 0x03BA, // zeta   eta   theta  iota   kappa
 x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, // lamda  mu    nu     xi     omicron
 x03C0, 0x03C1, 0x03C3, 0x03C4, 0x03C5, // pi     rho   sigma  tau    upsilon
 x03C6, 0x03C7, 0x03C8, 0x03C9          // phi    chi   psi    omega
 };
 #define CJK_HEAVENLY_STEM_CHARS_SIZE 10
 static const char16_t gCJKHeavenlyStemChars[CJK_HEAVENLY_STEM_CHARS_SIZE] =
 {
 x7532, 0x4e59, 0x4e19, 0x4e01, 0x620a,
 x5df1, 0x5e9a, 0x8f9b, 0x58ec, 0x7678
 };
 #define CJK_EARTHLY_BRANCH_CHARS_SIZE 12
 static const char16_t gCJKEarthlyBranchChars[CJK_EARTHLY_BRANCH_CHARS_SIZE] =
 {
 x5b50, 0x4e11, 0x5bc5, 0x536f, 0x8fb0, 0x5df3,
 x5348, 0x672a, 0x7533, 0x9149, 0x620c, 0x4ea5
 };
 #define HANGUL_CHARS_SIZE 14
 static const char16_t gHangulChars[HANGUL_CHARS_SIZE] =
 {
 xac00, 0xb098, 0xb2e4, 0xb77c, 0xb9c8, 0xbc14,
 xc0ac, 0xc544, 0xc790, 0xcc28, 0xce74, 0xd0c0,
 xd30c, 0xd558
 };
 #define HANGUL_CONSONANT_CHARS_SIZE 14
 static const char16_t gHangulConsonantChars[HANGUL_CONSONANT_CHARS_SIZE] =
 {
 x3131, 0x3134, 0x3137, 0x3139, 0x3141, 0x3142,
 x3145, 0x3147, 0x3148, 0x314a, 0x314b, 0x314c,
 x314d, 0x314e
 };
 // Ge'ez set of Ethiopic ordered list. There are other locale-dependent sets.
 // For the time being, let's implement two Ge'ez sets only
 // per Momoi san's suggestion in bug 102252.
 // For details, refer to http://www.ethiopic.org/Collation/OrderedLists.html.
 #define ETHIOPIC_HALEHAME_CHARS_SIZE 26
 static const char16_t gEthiopicHalehameChars[ETHIOPIC_HALEHAME_CHARS_SIZE] =
 {
 x1200, 0x1208, 0x1210, 0x1218, 0x1220, 0x1228,
 x1230, 0x1240, 0x1260, 0x1270, 0x1280, 0x1290,
 x12a0, 0x12a8, 0x12c8, 0x12d0, 0x12d8, 0x12e8,
 x12f0, 0x1308, 0x1320, 0x1330, 0x1338, 0x1340,
 x1348, 0x1350
 };
 #define ETHIOPIC_HALEHAME_AM_CHARS_SIZE 33
 static const char16_t gEthiopicHalehameAmChars[ETHIOPIC_HALEHAME_AM_CHARS_SIZE] =
 {
 x1200, 0x1208, 0x1210, 0x1218, 0x1220, 0x1228,
 x1230, 0x1238, 0x1240, 0x1260, 0x1270, 0x1278,
 x1280, 0x1290, 0x1298, 0x12a0, 0x12a8, 0x12b8,
 x12c8, 0x12d0, 0x12d8, 0x12e0, 0x12e8, 0x12f0,
 x1300, 0x1308, 0x1320, 0x1328, 0x1330, 0x1338,
 x1340, 0x1348, 0x1350
 };
 #define ETHIOPIC_HALEHAME_TI_ER_CHARS_SIZE 31
 static const char16_t gEthiopicHalehameTiErChars[ETHIOPIC_HALEHAME_TI_ER_CHARS_SIZE] =
 {
 x1200, 0x1208, 0x1210, 0x1218, 0x1228, 0x1230,
 x1238, 0x1240, 0x1250, 0x1260, 0x1270, 0x1278,
 x1290, 0x1298, 0x12a0, 0x12a8, 0x12b8, 0x12c8,
 x12d0, 0x12d8, 0x12e0, 0x12e8, 0x12f0, 0x1300,
 x1308, 0x1320, 0x1328, 0x1330, 0x1338, 0x1348,
 x1350
 };
 #define ETHIOPIC_HALEHAME_TI_ET_CHARS_SIZE 34
 static const char16_t gEthiopicHalehameTiEtChars[ETHIOPIC_HALEHAME_TI_ET_CHARS_SIZE] =
 {
 x1200, 0x1208, 0x1210, 0x1218, 0x1220, 0x1228,
 x1230, 0x1238, 0x1240, 0x1250, 0x1260, 0x1270,
 x1278, 0x1280, 0x1290, 0x1298, 0x12a0, 0x12a8,
 x12b8, 0x12c8, 0x12d0, 0x12d8, 0x12e0, 0x12e8,
 x12f0, 0x1300, 0x1308, 0x1320, 0x1328, 0x1330,
 x1338, 0x1340, 0x1348, 0x1350
 };
 // We know cjk-ideographic need 31 characters to display 99,999,999,999,999,999
 // georgian needs 6 at most
 // armenian needs 12 at most
 // hebrew may need more...
 #define NUM_BUF_SIZE 34
 static bool CharListToText(int32_t ordinal, nsString& result, const char16_t* chars, int32_t aBase)
 {
   char16_t buf[NUM_BUF_SIZE];
   int32_t idx = NUM_BUF_SIZE;
   if (ordinal < 1) {
     return false;
   }
   do {
     ordinal--; // a == 0
     int32_t cur = ordinal % aBase;
     buf[--idx] = chars[cur];
     ordinal /= aBase ;
   } while ( ordinal > 0);
   result.Append(buf+idx,NUM_BUF_SIZE-idx);
   return true;
 }
 static const char16_t gCJKDecimalChars[10] =
 {
 x3007, 0x4e00, 0x4e8c, 0x4e09, 0x56db,
 x4e94, 0x516d, 0x4e03, 0x516b, 0x4e5d
 };
 static bool CharListDecimalToText(int32_t ordinal, nsString& result, const char16_t* chars)
 {
   if (ordinal < 0) {
     return false;
   }
   char16_t buf[NUM_BUF_SIZE];
   int32_t idx = NUM_BUF_SIZE;
   do {
     buf[--idx] = chars[ordinal % 10];
     ordinal /= 10;
   } while (ordinal > 0);
   result.Append(buf + idx, NUM_BUF_SIZE - idx);
   return true;
 }
 enum CJKIdeographicLang {
   CHINESE, KOREAN, JAPANESE
 };
 struct CJKIdeographicData {
   const char16_t *negative;
   char16_t digit[10];
   char16_t unit[3];
   char16_t unit10K[2];
   uint8_t lang;
   bool informal;
 };
 static const char16_t gJapaneseNegative[] = {
 x30de, 0x30a4, 0x30ca, 0x30b9, 0x0000
 };
 static const CJKIdeographicData gDataJapaneseInformal = {
   gJapaneseNegative,          // negative
   {                           // digit
 x3007, 0x4e00, 0x4e8c, 0x4e09, 0x56db,
 x4e94, 0x516d, 0x4e03, 0x516b, 0x4e5d
   },
   { 0x5341, 0x767e, 0x5343 }, // unit
   { 0x4e07, 0x5104 },         // unit10K
   JAPANESE,                   // lang
   true                        // informal
 };
 static const CJKIdeographicData gDataJapaneseFormal = {
   gJapaneseNegative,          // negative
   {                           // digit
 x96f6, 0x58f1, 0x5f10, 0x53c2, 0x56db,
 x4f0d, 0x516d, 0x4e03, 0x516b, 0x4e5d
   },
   { 0x62fe, 0x767e, 0x9621 }, // unit
   { 0x842c, 0x5104 },         // unit10K
   JAPANESE,                   // lang
   false                       // informal
 };
 static const char16_t gKoreanNegative[] = {
 xb9c8, 0xc774, 0xb108, 0xc2a4, 0x0020, 0x0000
 };
 static const CJKIdeographicData gDataKoreanHangulFormal = {
   gKoreanNegative,            // negative
   {                           // digit
 xc601, 0xc77c, 0xc774, 0xc0bc, 0xc0ac,
 xc624, 0xc721, 0xce60, 0xd314, 0xad6c
   },
   { 0xc2ed, 0xbc31, 0xcc9c }, // unit
   { 0xb9cc, 0xc5b5 },         // unit10K
   KOREAN,                     // lang
   false                       // informal
 };
 static const CJKIdeographicData gDataKoreanHanjaInformal = {
   gKoreanNegative,            // negative
   {                           // digit
 x96f6, 0x4e00, 0x4e8c, 0x4e09, 0x56db,
 x4e94, 0x516d, 0x4e03, 0x516b, 0x4e5d
   },
   { 0x5341, 0x767e, 0x5343 }, // unit
   { 0x842c, 0x5104 },         // unit10K
   KOREAN,                     // lang
   true                        // informal
 };
 static const CJKIdeographicData gDataKoreanHanjaFormal = {
   gKoreanNegative,            // negative
   {                           // digit
 x96f6, 0x58f9, 0x8cb3, 0x53c3, 0x56db,
 x4e94, 0x516d, 0x4e03, 0x516b, 0x4e5d
   },
   { 0x62fe, 0x767e, 0x4edf }, // unit
   { 0x842c, 0x5104 },         // unit10K
   KOREAN,                     // lang
   false                       // informal
 };
 static const char16_t gSimpChineseNegative[] = {
 x8d1f, 0x0000
 };
 static const CJKIdeographicData gDataSimpChineseInformal = {
   gSimpChineseNegative,       // negative
   {                           // digit
 x96f6, 0x4e00, 0x4e8c, 0x4e09, 0x56db,
 x4e94, 0x516d, 0x4e03, 0x516b, 0x4e5d
   },
   { 0x5341, 0x767e, 0x5343 }, // unit
   { 0x4e07, 0x4ebf },         // unit10K
   CHINESE,                    // lang
   true                        // informal
 };
 static const CJKIdeographicData gDataSimpChineseFormal = {
   gSimpChineseNegative,       // negative
   {                           // digit
 x96f6, 0x58f9, 0x8d30, 0x53c1, 0x8086,
 x4f0d, 0x9646, 0x67d2, 0x634c, 0x7396
   },
   { 0x62fe, 0x4f70, 0x4edf }, // unit
   { 0x4e07, 0x4ebf },         // unit10K
   CHINESE,                    // lang
   false                       // informal
 };
 static const char16_t gTradChineseNegative[] = {
 x8ca0, 0x0000
 };
 static const CJKIdeographicData gDataTradChineseInformal = {
   gTradChineseNegative,       // negative
   {                           // digit
 x96f6, 0x4e00, 0x4e8c, 0x4e09, 0x56db,
 x4e94, 0x516d, 0x4e03, 0x516b, 0x4e5d
   },
   { 0x5341, 0x767e, 0x5343 }, // unit
   { 0x842c, 0x5104 },         // unit10K
   CHINESE,                    // lang
   true                        // informal
 };
 static const CJKIdeographicData gDataTradChineseFormal = {
   gTradChineseNegative,       // negative
   {                           // digit
 x96f6, 0x58f9, 0x8cb3, 0x53c3, 0x8086,
 x4f0d, 0x9678, 0x67d2, 0x634c, 0x7396
   },
   { 0x62fe, 0x4f70, 0x4edf }, // unit
   { 0x842c, 0x5104 },         // unit10K
   CHINESE,                    // lang
   false                       // informal
 };
 static const bool CJKIdeographicToText(int32_t aOrdinal, nsString& result,
                                        const CJKIdeographicData& data)
 {
   char16_t buf[NUM_BUF_SIZE];
   int32_t idx = NUM_BUF_SIZE;
   int32_t pos = 0;
   bool isNegative = (aOrdinal < 0);
   bool needZero = (aOrdinal == 0);
   int32_t unitidx = 0, unit10Kidx = 0;
   uint32_t ordinal = mozilla::Abs(aOrdinal);
   do {
     unitidx = pos % 4;
     if (unitidx == 0) {
       unit10Kidx = pos / 4;
     }
     int32_t cur = ordinal % 10;
     if (cur == 0) {
       if (needZero) {
         needZero = false;
         buf[--idx] = data.digit[0];
       }
     } else {
       if (data.lang == CHINESE) {
         needZero = true;
       }
       if (unit10Kidx != 0) {
         if (data.lang == KOREAN && idx != NUM_BUF_SIZE) {
           buf[--idx] = ' ';
         }
         buf[--idx] = data.unit10K[unit10Kidx - 1];
       }
       if (unitidx != 0) {
         buf[--idx] = data.unit[unitidx - 1];
       }
       if (cur != 1) {
         buf[--idx] = data.digit[cur];
       } else {
         bool needOne = true;
         if (data.informal) {
           switch (data.lang) {
             case CHINESE:
               if (unitidx == 1 &&
                   (ordinal == 1 || (pos > 4 && ordinal % 1000 == 1))) {
                 needOne = false;
               }
               break;
             case JAPANESE:
               if (unitidx > 0 &&
                   (unitidx != 3 || (pos == 3 && ordinal == 1))) {
                 needOne = false;
               }
               break;
             case KOREAN:
               if (unitidx > 0 || (pos == 4 && (ordinal % 1000) == 1)) {
                 needOne = false;
               }
               break;
           }
         }
         if (needOne) {
           buf[--idx] = data.digit[1];
         }
       }
       unit10Kidx = 0;
     }
     ordinal /= 10;
     pos++;
   } while (ordinal > 0);
   if (isNegative) {
     result.Append(data.negative);
   }
   result.Append(buf + idx, NUM_BUF_SIZE - idx);
   return true;
 }
 #define HEBREW_GERESH       0x05F3
 static const char16_t gHebrewDigit[22] =
 {
 //   1       2       3       4       5       6       7       8       9
 x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8,
 //  10      20      30      40      50      60      70      80      90
 x05D9, 0x05DB, 0x05DC, 0x05DE, 0x05E0, 0x05E1, 0x05E2, 0x05E4, 0x05E6,
 // 100     200     300     400
 x05E7, 0x05E8, 0x05E9, 0x05EA
 };
 static bool HebrewToText(int32_t ordinal, nsString& result)
 {
   if (ordinal < 1 || ordinal > 999999) {
     return false;
   }
   bool outputSep = false;
   nsAutoString allText, thousandsGroup;
   do {
     thousandsGroup.Truncate();
     int32_t n3 = ordinal % 1000;
     // Process digit for 100 - 900
     for(int32_t n1 = 400; n1 > 0; )
     {
       if( n3 >= n1)
       {
         n3 -= n1;
         thousandsGroup.Append(gHebrewDigit[(n1/100)-1+18]);
       } else {
         n1 -= 100;
       } // if
     } // for
     // Process digit for 10 - 90
     int32_t n2;
     if( n3 >= 10 )
     {
       // Special process for 15 and 16
       if(( 15 == n3 ) || (16 == n3)) {
         // Special rule for religious reason...
         // 15 is represented by 9 and 6, not 10 and 5
         // 16 is represented by 9 and 7, not 10 and 6
         n2 = 9;
         thousandsGroup.Append(gHebrewDigit[ n2 - 1]);
       } else {
         n2 = n3 - (n3 % 10);
         thousandsGroup.Append(gHebrewDigit[(n2/10)-1+9]);
       } // if
       n3 -= n2;
     } // if
     // Process digit for 1 - 9
     if ( n3 > 0)
       thousandsGroup.Append(gHebrewDigit[n3-1]);
     if (outputSep)
       thousandsGroup.Append((char16_t)HEBREW_GERESH);
     if (allText.IsEmpty())
       allText = thousandsGroup;
     else
       allText = thousandsGroup + allText;
     ordinal /= 1000;
     outputSep = true;
   } while (ordinal >= 1);
   result.Append(allText);
   return true;
 }
 static bool ArmenianToText(int32_t ordinal, nsString& result)
 {
   if (ordinal < 1 || ordinal > 9999) { // zero or reach the limit of Armenian numbering system
     return false;
   }
   char16_t buf[NUM_BUF_SIZE];
   int32_t idx = NUM_BUF_SIZE;
   int32_t d = 0;
   do {
     int32_t cur = ordinal % 10;
     if (cur > 0)
     {
       char16_t u = 0x0530 + (d * 9) + cur;
       buf[--idx] = u;
     }
     ++d;
     ordinal /= 10;
   } while (ordinal > 0);
   result.Append(buf + idx, NUM_BUF_SIZE - idx);
   return true;
 }
 static const char16_t gGeorgianValue [ 37 ] = { // 4 * 9 + 1 = 37
 //      1       2       3       4       5       6       7       8       9
 x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10F1, 0x10D7,
 //     10      20      30      40      50      60      70      80      90
 x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10F2, 0x10DD, 0x10DE, 0x10DF,
 //    100     200     300     400     500     600     700     800     900
 x10E0, 0x10E1, 0x10E2, 0x10F3, 0x10E4, 0x10E5, 0x10E6, 0x10E7, 0x10E8,
 //   1000    2000    3000    4000    5000    6000    7000    8000    9000
 x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10F4, 0x10EF, 0x10F0,
 //  10000
 x10F5
 };
 static bool GeorgianToText(int32_t ordinal, nsString& result)
 {
   if (ordinal < 1 || ordinal > 19999) { // zero or reach the limit of Georgian numbering system
     return false;
   }
   char16_t buf[NUM_BUF_SIZE];
   int32_t idx = NUM_BUF_SIZE;
   int32_t d = 0;
   do {
     int32_t cur = ordinal % 10;
     if (cur > 0)
     {
       char16_t u = gGeorgianValue[(d * 9 ) + ( cur - 1)];
       buf[--idx] = u;
     }
     ++d;
     ordinal /= 10;
   } while (ordinal > 0);
   result.Append(buf + idx, NUM_BUF_SIZE - idx);
   return true;
 }
 // Convert ordinal to Ethiopic numeric representation.
 // The detail is available at http://www.ethiopic.org/Numerals/
 // The algorithm used here is based on the pseudo-code put up there by
 // Daniel Yacob <yacob@geez.org>.
 // Another reference is Unicode 3.0 standard section 11.1.
 #define ETHIOPIC_ONE             0x1369
 #define ETHIOPIC_TEN             0x1372
 #define ETHIOPIC_HUNDRED         0x137B
 #define ETHIOPIC_TEN_THOUSAND    0x137C
 static bool EthiopicToText(int32_t ordinal, nsString& result)
 {
   if (ordinal < 1) {
     return false;
   }
   nsAutoString asciiNumberString;      // decimal string representation of ordinal
   DecimalToText(ordinal, asciiNumberString);
   uint8_t asciiStringLength = asciiNumberString.Length();
   // If number length is odd, add a leading "0"
   // the leading "0" preconditions the string to always have the
   // leading tens place populated, this avoids a check within the loop.
   // If we didn't add the leading "0", decrement asciiStringLength so
   // it will be equivalent to a zero-based index in both cases.
   if (asciiStringLength & 1) {
     asciiNumberString.Insert(NS_LITERAL_STRING("0"), 0);
   } else {
     asciiStringLength--;
   }
   // Iterate from the highest digits to lowest
   // indexFromLeft       indexes digits (0 = most significant)
   // groupIndexFromRight indexes pairs of digits (0 = least significant)
   for (uint8_t indexFromLeft = 0, groupIndexFromRight = asciiStringLength >> 1;
        indexFromLeft <= asciiStringLength;
        indexFromLeft += 2, groupIndexFromRight--) {
     uint8_t tensValue  = asciiNumberString.CharAt(indexFromLeft) & 0x0F;
     uint8_t unitsValue = asciiNumberString.CharAt(indexFromLeft + 1) & 0x0F;
     uint8_t groupValue = tensValue * 10 + unitsValue;
     bool oddGroup = (groupIndexFromRight & 1);
     // we want to clear ETHIOPIC_ONE when it is superfluous
     if (ordinal > 1 &&
         groupValue == 1 &&                  // one without a leading ten
         (oddGroup || indexFromLeft == 0)) { // preceding (100) or leading the sequence
       unitsValue = 0;
     }
     // put it all together...
     if (tensValue) {
       // map onto Ethiopic "tens":
       result.Append((char16_t) (tensValue +  ETHIOPIC_TEN - 1));
     }
     if (unitsValue) {
       //map onto Ethiopic "units":
       result.Append((char16_t) (unitsValue + ETHIOPIC_ONE - 1));
     }
     // Add a separator for all even groups except the last,
     // and for odd groups with non-zero value.
     if (oddGroup) {
       if (groupValue) {
         result.Append((char16_t) ETHIOPIC_HUNDRED);
       }
     } else {
       if (groupIndexFromRight) {
         result.Append((char16_t) ETHIOPIC_TEN_THOUSAND);
       }
     }
   }
   return true;
 }
 /* static */ void
 nsBulletFrame::AppendCounterText(int32_t aListStyleType,
                                  int32_t aOrdinal,
                                  nsString& result,
                                  bool& isRTL)
 {
   bool success = true;
   int32_t fallback = NS_STYLE_LIST_STYLE_DECIMAL;
   isRTL = false;
   switch (aListStyleType) {
     case NS_STYLE_LIST_STYLE_NONE: // used by counters code only
       break;
     case NS_STYLE_LIST_STYLE_DISC: // used by counters code only
       // XXX We really need to do this the same way we do list bullets.
       result.Append(char16_t(0x2022));
       break;
     case NS_STYLE_LIST_STYLE_CIRCLE: // used by counters code only
       // XXX We really need to do this the same way we do list bullets.
       result.Append(char16_t(0x25E6));
       break;
     case NS_STYLE_LIST_STYLE_SQUARE: // used by counters code only
       // XXX We really need to do this the same way we do list bullets.
       result.Append(char16_t(0x25FE));
       break;
     case NS_STYLE_LIST_STYLE_DECIMAL:
     default: // CSS2 say "A users  agent that does not recognize a numbering system
       // should use 'decimal'
       success = DecimalToText(aOrdinal, result);
       NS_ASSERTION(success, "DecimalToText must never fail");
       break;
     case NS_STYLE_LIST_STYLE_DECIMAL_LEADING_ZERO:
       success = DecimalLeadingZeroToText(aOrdinal, result);
       break;
     case NS_STYLE_LIST_STYLE_CJK_DECIMAL:
       success = CharListDecimalToText(aOrdinal, result, gCJKDecimalChars);
       break;
     case NS_STYLE_LIST_STYLE_LOWER_ROMAN:
       success = RomanToText(aOrdinal, result,
                             gLowerRomanCharsA, gLowerRomanCharsB);
       break;
     case NS_STYLE_LIST_STYLE_UPPER_ROMAN:
       success = RomanToText(aOrdinal, result,
                             gUpperRomanCharsA, gUpperRomanCharsB);
       break;
     case NS_STYLE_LIST_STYLE_LOWER_ALPHA:
       success = CharListToText(aOrdinal, result, gLowerAlphaChars, ALPHA_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_UPPER_ALPHA:
       success = CharListToText(aOrdinal, result, gUpperAlphaChars, ALPHA_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_KATAKANA:
       success = CharListToText(aOrdinal, result, gKatakanaChars,
                                KATAKANA_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_HIRAGANA:
       success = CharListToText(aOrdinal, result, gHiraganaChars,
                                HIRAGANA_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_KATAKANA_IROHA:
       success = CharListToText(aOrdinal, result, gKatakanaIrohaChars,
                                KATAKANA_IROHA_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_HIRAGANA_IROHA:
       success = CharListToText(aOrdinal, result, gHiraganaIrohaChars,
                                HIRAGANA_IROHA_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_LOWER_GREEK:
       success = CharListToText(aOrdinal, result, gLowerGreekChars ,
                                LOWER_GREEK_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_CJK_IDEOGRAPHIC:
     case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_INFORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success =
         CJKIdeographicToText(aOrdinal, result, gDataTradChineseInformal);
       break;
     case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_FORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CJKIdeographicToText(aOrdinal, result, gDataTradChineseFormal);
       break;
     case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_INFORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success =
         CJKIdeographicToText(aOrdinal, result, gDataSimpChineseInformal);
       break;
     case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_FORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CJKIdeographicToText(aOrdinal, result, gDataSimpChineseFormal);
       break;
     case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_INFORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CJKIdeographicToText(aOrdinal, result, gDataJapaneseInformal);
       break;
     case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_FORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CJKIdeographicToText(aOrdinal, result, gDataJapaneseFormal);
       break;
     case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success =
         CJKIdeographicToText(aOrdinal, result, gDataKoreanHangulFormal);
       break;
     case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success =
         CJKIdeographicToText(aOrdinal, result, gDataKoreanHanjaInformal);
       break;
     case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CJKIdeographicToText(aOrdinal, result, gDataKoreanHanjaFormal);
       break;
     case NS_STYLE_LIST_STYLE_HEBREW:
       isRTL = true;
       success = HebrewToText(aOrdinal, result);
       break;
     case NS_STYLE_LIST_STYLE_ARMENIAN:
       success = ArmenianToText(aOrdinal, result);
       break;
     case NS_STYLE_LIST_STYLE_GEORGIAN:
       success = GeorgianToText(aOrdinal, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ARABIC_INDIC:
       success = OtherDecimalToText(aOrdinal, 0x0660, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_PERSIAN:
     case NS_STYLE_LIST_STYLE_MOZ_URDU:
       success = OtherDecimalToText(aOrdinal, 0x06f0, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_DEVANAGARI:
       success = OtherDecimalToText(aOrdinal, 0x0966, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_GURMUKHI:
       success = OtherDecimalToText(aOrdinal, 0x0a66, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_GUJARATI:
       success = OtherDecimalToText(aOrdinal, 0x0AE6, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ORIYA:
       success = OtherDecimalToText(aOrdinal, 0x0B66, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_KANNADA:
       success = OtherDecimalToText(aOrdinal, 0x0CE6, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_MALAYALAM:
       success = OtherDecimalToText(aOrdinal, 0x0D66, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_THAI:
       success = OtherDecimalToText(aOrdinal, 0x0E50, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_LAO:
       success = OtherDecimalToText(aOrdinal, 0x0ED0, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_MYANMAR:
       success = OtherDecimalToText(aOrdinal, 0x1040, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_KHMER:
       success = OtherDecimalToText(aOrdinal, 0x17E0, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_BENGALI:
       success = OtherDecimalToText(aOrdinal, 0x09E6, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_TELUGU:
       success = OtherDecimalToText(aOrdinal, 0x0C66, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_TAMIL:
       success = TamilToText(aOrdinal, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_CJK_HEAVENLY_STEM:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CharListToText(aOrdinal, result, gCJKHeavenlyStemChars,
                                CJK_HEAVENLY_STEM_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_CJK_EARTHLY_BRANCH:
       fallback = NS_STYLE_LIST_STYLE_CJK_DECIMAL;
       success = CharListToText(aOrdinal, result, gCJKEarthlyBranchChars,
                                CJK_EARTHLY_BRANCH_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_HANGUL:
       success = CharListToText(aOrdinal, result, gHangulChars, HANGUL_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_HANGUL_CONSONANT:
       success = CharListToText(aOrdinal, result, gHangulConsonantChars,
                                HANGUL_CONSONANT_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME:
       success = CharListToText(aOrdinal, result, gEthiopicHalehameChars,
                                ETHIOPIC_HALEHAME_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_NUMERIC:
       success = EthiopicToText(aOrdinal, result);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_AM:
       success = CharListToText(aOrdinal, result, gEthiopicHalehameAmChars,
                                ETHIOPIC_HALEHAME_AM_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_TI_ER:
       success = CharListToText(aOrdinal, result, gEthiopicHalehameTiErChars,
                                ETHIOPIC_HALEHAME_TI_ER_CHARS_SIZE);
       break;
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_TI_ET:
       success = CharListToText(aOrdinal, result, gEthiopicHalehameTiEtChars,
                                ETHIOPIC_HALEHAME_TI_ET_CHARS_SIZE);
       break;
   }
   if (!success) {
     AppendCounterText(fallback, aOrdinal, result, isRTL);
   }
 }
 /* static */ void
 nsBulletFrame::GetListItemSuffix(int32_t aListStyleType,
                                  nsString& aResult,
                                  bool& aSuppressPadding)
 {
   aResult = '.';
   aSuppressPadding = false;
   switch (aListStyleType) {
     case NS_STYLE_LIST_STYLE_NONE: // used by counters code only
     case NS_STYLE_LIST_STYLE_DISC: // used by counters code only
     case NS_STYLE_LIST_STYLE_CIRCLE: // used by counters code only
     case NS_STYLE_LIST_STYLE_SQUARE: // used by counters code only
       aResult.Truncate();
       break;
     case NS_STYLE_LIST_STYLE_CJK_DECIMAL:
     case NS_STYLE_LIST_STYLE_CJK_IDEOGRAPHIC:
     case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_CJK_HEAVENLY_STEM:
     case NS_STYLE_LIST_STYLE_MOZ_CJK_EARTHLY_BRANCH:
       aResult = 0x3001;
       aSuppressPadding = true;
       break;
     case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
     case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
     case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_HANGUL:
     case NS_STYLE_LIST_STYLE_MOZ_HANGUL_CONSONANT:
       aResult = ',';
       break;
   }
 }
 void
 nsBulletFrame::GetListItemText(const nsStyleList& aListStyle,
                                nsString& result)
 {
   const nsStyleVisibility* vis = StyleVisibility();
   NS_ASSERTION(aListStyle.mListStyleType != NS_STYLE_LIST_STYLE_NONE &&
                aListStyle.mListStyleType != NS_STYLE_LIST_STYLE_DISC &&
                aListStyle.mListStyleType != NS_STYLE_LIST_STYLE_CIRCLE &&
                aListStyle.mListStyleType != NS_STYLE_LIST_STYLE_SQUARE,
                "we should be using specialized code for these types");
   result.Truncate();
   AppendCounterText(aListStyle.mListStyleType, mOrdinal, result, mTextIsRTL);
   nsAutoString suffix;
   GetListItemSuffix(aListStyle.mListStyleType, suffix, mSuppressPadding);
   // We're not going to do proper Bidi reordering on the list item marker, but
   // just display the whole thing as RTL or LTR, so we fake reordering by
   // appending the suffix to the end of the list item marker if the
   // directionality of the characters is the same as the style direction or
   // prepending it to the beginning if they are different.
   result = (mTextIsRTL == (vis->mDirection == NS_STYLE_DIRECTION_RTL)) ?
           result + suffix : suffix + result;
 }
 #define MIN_BULLET_SIZE 1
 void
 nsBulletFrame::GetDesiredSize(nsPresContext*  aCX,
                               nsRenderingContext *aRenderingContext,
                               nsHTMLReflowMetrics& aMetrics,
                               float aFontSizeInflation)
 {
   // Reset our padding.  If we need it, we'll set it below.
   mPadding.SizeTo(0, 0, 0, 0);
   const nsStyleList* myList = StyleList();
   nscoord ascent;
   RemoveStateBits(BULLET_FRAME_IMAGE_LOADING);
   if (myList->GetListStyleImage() && mImageRequest) {
     uint32_t status;
     mImageRequest->GetImageStatus(&status);
     if (status & imgIRequest::STATUS_SIZE_AVAILABLE &&
         !(status & imgIRequest::STATUS_ERROR)) {
       // auto size the image
       aMetrics.Width() = mIntrinsicSize.width;
       aMetrics.SetTopAscent(aMetrics.Height() = mIntrinsicSize.height);
       AddStateBits(BULLET_FRAME_IMAGE_LOADING);
       return;
     }
   }
   // If we're getting our desired size and don't have an image, reset
   // mIntrinsicSize to (0,0).  Otherwise, if we used to have an image, it
   // changed, and the new one is coming in, but we're reflowing before it's
   // fully there, we'll end up with mIntrinsicSize not matching our size, but
   // won't trigger a reflow in OnStartContainer (because mIntrinsicSize will
   // match the image size).
   mIntrinsicSize.SizeTo(0, 0);
   nsRefPtr<nsFontMetrics> fm;
   nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fm),
                                         aFontSizeInflation);
   nscoord bulletSize;
   nsAutoString text;
   switch (myList->mListStyleType) {
     case NS_STYLE_LIST_STYLE_NONE:
       aMetrics.Width() = aMetrics.Height() = 0;
       aMetrics.SetTopAscent(0);
       break;
     case NS_STYLE_LIST_STYLE_DISC:
     case NS_STYLE_LIST_STYLE_CIRCLE:
     case NS_STYLE_LIST_STYLE_SQUARE:
       ascent = fm->MaxAscent();
       bulletSize = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
                           NSToCoordRound(0.8f * (float(ascent) / 2.0f)));
       mPadding.bottom = NSToCoordRound(float(ascent) / 8.0f);
       aMetrics.Width() = aMetrics.Height() = bulletSize;
       aMetrics.SetTopAscent(bulletSize + mPadding.bottom);
       break;
     default:
     case NS_STYLE_LIST_STYLE_DECIMAL_LEADING_ZERO:
     case NS_STYLE_LIST_STYLE_DECIMAL:
     case NS_STYLE_LIST_STYLE_CJK_DECIMAL:
     case NS_STYLE_LIST_STYLE_LOWER_ROMAN:
     case NS_STYLE_LIST_STYLE_UPPER_ROMAN:
     case NS_STYLE_LIST_STYLE_LOWER_ALPHA:
     case NS_STYLE_LIST_STYLE_UPPER_ALPHA:
     case NS_STYLE_LIST_STYLE_KATAKANA:
     case NS_STYLE_LIST_STYLE_HIRAGANA:
     case NS_STYLE_LIST_STYLE_KATAKANA_IROHA:
     case NS_STYLE_LIST_STYLE_HIRAGANA_IROHA:
     case NS_STYLE_LIST_STYLE_LOWER_GREEK:
     case NS_STYLE_LIST_STYLE_HEBREW:
     case NS_STYLE_LIST_STYLE_ARMENIAN:
     case NS_STYLE_LIST_STYLE_GEORGIAN:
     case NS_STYLE_LIST_STYLE_CJK_IDEOGRAPHIC:
     case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
     case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
     case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
     case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
     case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_SIMP_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_TRAD_CHINESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_INFORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_JAPANESE_FORMAL:
     case NS_STYLE_LIST_STYLE_MOZ_CJK_HEAVENLY_STEM:
     case NS_STYLE_LIST_STYLE_MOZ_CJK_EARTHLY_BRANCH:
     case NS_STYLE_LIST_STYLE_MOZ_ARABIC_INDIC:
     case NS_STYLE_LIST_STYLE_MOZ_PERSIAN:
     case NS_STYLE_LIST_STYLE_MOZ_URDU:
     case NS_STYLE_LIST_STYLE_MOZ_DEVANAGARI:
     case NS_STYLE_LIST_STYLE_MOZ_GURMUKHI:
     case NS_STYLE_LIST_STYLE_MOZ_GUJARATI:
     case NS_STYLE_LIST_STYLE_MOZ_ORIYA:
     case NS_STYLE_LIST_STYLE_MOZ_KANNADA:
     case NS_STYLE_LIST_STYLE_MOZ_MALAYALAM:
     case NS_STYLE_LIST_STYLE_MOZ_BENGALI:
     case NS_STYLE_LIST_STYLE_MOZ_TAMIL:
     case NS_STYLE_LIST_STYLE_MOZ_TELUGU:
     case NS_STYLE_LIST_STYLE_MOZ_THAI:
     case NS_STYLE_LIST_STYLE_MOZ_LAO:
     case NS_STYLE_LIST_STYLE_MOZ_MYANMAR:
     case NS_STYLE_LIST_STYLE_MOZ_KHMER:
     case NS_STYLE_LIST_STYLE_MOZ_HANGUL:
     case NS_STYLE_LIST_STYLE_MOZ_HANGUL_CONSONANT:
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME:
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_NUMERIC:
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_AM:
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_TI_ER:
     case NS_STYLE_LIST_STYLE_MOZ_ETHIOPIC_HALEHAME_TI_ET:
       GetListItemText(*myList, text);
       aMetrics.Height() = fm->MaxHeight();
       aRenderingContext->SetFont(fm);
       aMetrics.Width() =
         nsLayoutUtils::GetStringWidth(this, aRenderingContext,
                                       text.get(), text.Length());
       aMetrics.SetTopAscent(fm->MaxAscent());
       break;
   }
 }
 nsresult
 nsBulletFrame::Reflow(nsPresContext* aPresContext,
                       nsHTMLReflowMetrics& aMetrics,
                       const nsHTMLReflowState& aReflowState,
                       nsReflowStatus& aStatus)
 {
   DO_GLOBAL_REFLOW_COUNT("nsBulletFrame");
   DISPLAY_REFLOW(aPresContext, this, aReflowState, aMetrics, aStatus);
   float inflation = nsLayoutUtils::FontSizeInflationFor(this);
   SetFontSizeInflation(inflation);
   // Get the base size
   // This will also set mSuppressPadding appropriately (via GetListItemText())
   // for the builtin counter styles with ideographic comma as suffix where the
   // default padding from ua.css is not desired.
   GetDesiredSize(aPresContext, aReflowState.rendContext, aMetrics, inflation);
   // Add in the border and padding; split the top/bottom between the
   // ascent and descent to make things look nice
   const nsMargin& borderPadding = aReflowState.ComputedPhysicalBorderPadding();
   if (!mSuppressPadding ||
       aPresContext->HasAuthorSpecifiedRules(this,
                                             NS_AUTHOR_SPECIFIED_PADDING)) {
     mPadding.top += NSToCoordRound(borderPadding.top * inflation);
     mPadding.right += NSToCoordRound(borderPadding.right * inflation);
     mPadding.bottom += NSToCoordRound(borderPadding.bottom * inflation);
     mPadding.left += NSToCoordRound(borderPadding.left * inflation);
   }
   aMetrics.Width() += mPadding.left + mPadding.right;
   aMetrics.Height() += mPadding.top + mPadding.bottom;
   aMetrics.SetTopAscent(aMetrics.TopAscent() + mPadding.top);
   // XXX this is a bit of a hack, we're assuming that no glyphs used for bullets
   // overflow their font-boxes. It'll do for now; to fix it for real, we really
   // should rewrite all the text-handling code here to use gfxTextRun (bug
   // 397294).
   aMetrics.SetOverflowAreasToDesiredBounds();
   aStatus = NS_FRAME_COMPLETE;
   NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aMetrics);
   return NS_OK;
 }
 /* virtual */ nscoord
 nsBulletFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
 {
   nsHTMLReflowMetrics metrics(GetWritingMode());
   DISPLAY_MIN_WIDTH(this, metrics.Width());
   GetDesiredSize(PresContext(), aRenderingContext, metrics, 1.0f);
   return metrics.Width();
 }
 /* virtual */ nscoord
 nsBulletFrame::GetPrefWidth(nsRenderingContext *aRenderingContext)
 {
   nsHTMLReflowMetrics metrics(GetWritingMode());
   DISPLAY_PREF_WIDTH(this, metrics.Width());
   GetDesiredSize(PresContext(), aRenderingContext, metrics, 1.0f);
   return metrics.Width();
 }
 NS_IMETHODIMP
 nsBulletFrame::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData)
 {
   if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
     nsCOMPtr<imgIContainer> image;
     aRequest->GetImage(getter_AddRefs(image));
     return OnStartContainer(aRequest, image);
   }
   if (aType == imgINotificationObserver::FRAME_UPDATE) {
     // The image has changed.
     // Invalidate the entire content area. Maybe it's not optimal but it's simple and
     // always correct, and I'll be a stunned mullet if it ever matters for performance
     InvalidateFrame();
   }
   if (aType == imgINotificationObserver::IS_ANIMATED) {
     // Register the image request with the refresh driver now that we know it's
     // animated.
     if (aRequest == mImageRequest) {
       nsLayoutUtils::RegisterImageRequest(PresContext(), mImageRequest,
                                           &mRequestRegistered);
     }
   }
   return NS_OK;
 }
 nsresult nsBulletFrame::OnStartContainer(imgIRequest *aRequest,
                                          imgIContainer *aImage)
 {
   if (!aImage) return NS_ERROR_INVALID_ARG;
   if (!aRequest) return NS_ERROR_INVALID_ARG;
   uint32_t status;
   aRequest->GetImageStatus(&status);
   if (status & imgIRequest::STATUS_ERROR) {
     return NS_OK;
   }
   nscoord w, h;
   aImage->GetWidth(&w);
   aImage->GetHeight(&h);
   nsPresContext* presContext = PresContext();
   nsSize newsize(nsPresContext::CSSPixelsToAppUnits(w),
                  nsPresContext::CSSPixelsToAppUnits(h));
   if (mIntrinsicSize != newsize) {
     mIntrinsicSize = newsize;
     // Now that the size is available (or an error occurred), trigger
     // a reflow of the bullet frame.
     nsIPresShell *shell = presContext->GetPresShell();
     if (shell) {
       shell->FrameNeedsReflow(this, nsIPresShell::eStyleChange,
                               NS_FRAME_IS_DIRTY);
     }
   }
   // Handle animations
   aImage->SetAnimationMode(presContext->ImageAnimationMode());
   // Ensure the animation (if any) is started. Note: There is no
   // corresponding call to Decrement for this. This Increment will be
   // 'cleaned up' by the Request when it is destroyed, but only then.
   aRequest->IncrementAnimationConsumers();
   return NS_OK;
 }
 void
 nsBulletFrame::GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup)
 {
   if (!aPresContext)
     return;
   NS_PRECONDITION(nullptr != aLoadGroup, "null OUT parameter pointer");
   nsIPresShell *shell = aPresContext->GetPresShell();
   if (!shell)
     return;
   nsIDocument *doc = shell->GetDocument();
   if (!doc)
     return;
   *aLoadGroup = doc->GetDocumentLoadGroup().take();
 }
 union VoidPtrOrFloat {
   VoidPtrOrFloat() : p(nullptr) {}
   void *p;
   float f;
 };
 float
 nsBulletFrame::GetFontSizeInflation() const
 {
   if (!HasFontSizeInflation()) {
     return 1.0f;
   }
   VoidPtrOrFloat u;
   u.p = Properties().Get(FontSizeInflationProperty());
   return u.f;
 }
 void
 nsBulletFrame::SetFontSizeInflation(float aInflation)
 {
   if (aInflation == 1.0f) {
     if (HasFontSizeInflation()) {
       RemoveStateBits(BULLET_FRAME_HAS_FONT_INFLATION);
       Properties().Delete(FontSizeInflationProperty());
     }
     return;
   }
   AddStateBits(BULLET_FRAME_HAS_FONT_INFLATION);
   VoidPtrOrFloat u;
   u.f = aInflation;
   Properties().Set(FontSizeInflationProperty(), u.p);
 }
 already_AddRefed<imgIContainer>
 nsBulletFrame::GetImage() const
 {
   if (mImageRequest && StyleList()->GetListStyleImage()) {
     nsCOMPtr<imgIContainer> imageCon;
     mImageRequest->GetImage(getter_AddRefs(imageCon));
     return imageCon.forget();
   }
   return nullptr;
 }
 nscoord
 nsBulletFrame::GetBaseline() const
 {
   nscoord ascent = 0, bottomPadding;
   if (GetStateBits() & BULLET_FRAME_IMAGE_LOADING) {
     ascent = GetRect().height;
   } else {
     nsRefPtr<nsFontMetrics> fm;
     nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fm),
                                           GetFontSizeInflation());
     const nsStyleList* myList = StyleList();
     switch (myList->mListStyleType) {
       case NS_STYLE_LIST_STYLE_NONE:
         break;
       case NS_STYLE_LIST_STYLE_DISC:
       case NS_STYLE_LIST_STYLE_CIRCLE:
       case NS_STYLE_LIST_STYLE_SQUARE:
         ascent = fm->MaxAscent();
         bottomPadding = NSToCoordRound(float(ascent) / 8.0f);
         ascent = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
                         NSToCoordRound(0.8f * (float(ascent) / 2.0f)));
         ascent += bottomPadding;
         break;
       default:
         ascent = fm->MaxAscent();
         break;
     }
   }
   return ascent + GetUsedBorderAndPadding().top;
 }
 NS_IMPL_ISUPPORTS(nsBulletListener, imgINotificationObserver)
 nsBulletListener::nsBulletListener() :
   mFrame(nullptr)
 {
 }
 nsBulletListener::~nsBulletListener()
 {
 }
 NS_IMETHODIMP
 nsBulletListener::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData)
 {
   if (!mFrame)
     return NS_ERROR_FAILURE;
   return mFrame->Notify(aRequest, aType, aData);
 }

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layout/generic/nsBulletFrame.cpp@b8a032363ba2 (annotated)

layout/generic/nsBulletFrame.cpp