Bug 1291280 - Part 2. Declare nsStyleImageLayers::Layer::mSourceURI as FragmentOrURI r=heycam

MozReview-Commit-ID: 6KFb7MjlLqj

--HG--
extra : rebase_source : 24ac046807f12e3bea6717baab962de94d8fafc5

layout/style/nsComputedDOMStyle.cpp

@@ -2145,12 +2145,10 @@ nsComputedDOMStyle::DoGetImageLayerImage(const nsStyleImageLayers& aLayers)
     //    Instead, we store the local URI in one place -- on Layer::mSourceURI.
     //    Hence, we must serialize using mSourceURI (instead of
     //    SetValueToStyleImage()/mImage) in this case.
-    bool isLocalURI = image.GetType() == eStyleImageType_Null &&
-                      aLayers.mLayers[i].mSourceURI;
-    if (isLocalURI) {
+    if (aLayers.mLayers[i].mSourceURI.IsLocalRef()) {
       // This is how we represent a 'mask-image' reference for a local URI,
       // such as 'mask-image:url(#mymask)' or 'mask:url(#mymask)'
-      val->SetURI(aLayers.mLayers[i].mSourceURI);
+      val->SetURI(aLayers.mLayers[i].mSourceURI.GetSourceURL());
     } else {
       SetValueToStyleImage(image, val);
     }
@@ -6147,8 +6145,8 @@ nsComputedDOMStyle::DoGetMask()
 
   RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
 
-  if (firstLayer.mSourceURI) {
-    val->SetURI(firstLayer.mSourceURI);
+  if (firstLayer.mSourceURI.GetSourceURL()) {
+    val->SetURI(firstLayer.mSourceURI.GetSourceURL());
   } else {
     val->SetIdent(eCSSKeyword_none);
   }

layout/style/nsRuleNode.cpp

@@ -6657,18 +6657,18 @@ struct BackgroundItemComputer<nsCSSValueList, nsStyleImage>
 };
 
 template <>
-struct BackgroundItemComputer<nsCSSValueList, nsCOMPtr<nsIURI> >
+struct BackgroundItemComputer<nsCSSValueList, FragmentOrURL>
 {
   static void ComputeValue(nsStyleContext* aStyleContext,
                            const nsCSSValueList* aSpecifiedValue,
-                           nsCOMPtr<nsIURI>& aComputedValue,
+                           FragmentOrURL& aComputedValue,
                            RuleNodeCacheConditions& aConditions)
   {
     if (eCSSUnit_Image == aSpecifiedValue->mValue.GetUnit() ||
         eCSSUnit_URL == aSpecifiedValue->mValue.GetUnit()) {
-      aComputedValue = aSpecifiedValue->mValue.GetURLValue();
+      aComputedValue.SetValue(&aSpecifiedValue->mValue);
     } else if (eCSSUnit_Null != aSpecifiedValue->mValue.GetUnit()) {
-      aComputedValue = nullptr;
+      aComputedValue.SetNull();
     }
   }
 };
@@ -10082,11 +10082,11 @@ nsRuleNode::ComputeSVGResetData(void* aStartStruct,
   // mask: none | <url>
   const nsCSSValue* maskValue = aRuleData->ValueForMask();
   if (eCSSUnit_URL == maskValue->GetUnit()) {
-    svgReset->mMask.mLayers[0].mSourceURI = maskValue->GetURLValue();
+    svgReset->mMask.mLayers[0].mSourceURI.SetValue(maskValue);
   } else if (eCSSUnit_None == maskValue->GetUnit() ||
              eCSSUnit_Initial == maskValue->GetUnit() ||
              eCSSUnit_Unset == maskValue->GetUnit()) {
-    svgReset->mMask.mLayers[0].mSourceURI = nullptr;
+    svgReset->mMask.mLayers[0].mSourceURI.SetNull();
   } else if (eCSSUnit_Inherit == maskValue->GetUnit()) {
     conditions.SetUncacheable();
     svgReset->mMask.mLayers[0].mSourceURI =

layout/style/nsStyleStruct.cpp

@@ -2607,7 +2607,7 @@ nsStyleImageLayers::HasLayerWithImage() const
     // mLayers[i].mImage can be empty if mask-image prop value is a reference
     // to SVG mask element.
     // So we need to test both mSourceURI and mImage.
-    if (mLayers[i].mSourceURI || !mLayers[i].mImage.IsEmpty()) {
+    if (mLayers[i].mSourceURI.GetSourceURL() || !mLayers[i].mImage.IsEmpty()) {
       return true;
     }
   }
@@ -2834,7 +2834,7 @@ nsStyleImageLayers::Layer::operator==(const Layer& aOther) const
          mImage == aOther.mImage &&
          mMaskMode == aOther.mMaskMode &&
          mComposite == aOther.mComposite &&
-         EqualURIs(mSourceURI, aOther.mSourceURI);
+         mSourceURI == aOther.mSourceURI;
 }
 
 nsChangeHint
@@ -2842,7 +2842,7 @@ nsStyleImageLayers::Layer::CalcDifference(const nsStyleImageLayers::Layer& aNewL
                                           nsChangeHint aPositionChangeHint) const
 {
   nsChangeHint hint = nsChangeHint(0);
-  if (!EqualURIs(mSourceURI, aNewLayer.mSourceURI)) {
+  if (mSourceURI != aNewLayer.mSourceURI) {
     hint |= nsChangeHint_RepaintFrame;
 
     // If Layer::mSourceURI links to a SVG mask, it has a fragment. Not vice
@@ -2857,11 +2857,18 @@ nsStyleImageLayers::Layer::CalcDifference(const nsStyleImageLayers::Layer& aNewL
     // That is, if mSourceURI has a fragment, it may link to a SVG mask; If
     // not, it "must" not link to a SVG mask.
     bool maybeSVGMask = false;
-    if (mSourceURI) {
-      mSourceURI->GetHasRef(&maybeSVGMask);
+    if (mSourceURI.IsLocalRef()) {
+      maybeSVGMask = true;
+    } else if (mSourceURI.GetSourceURL()) {
+      mSourceURI.GetSourceURL()->GetHasRef(&maybeSVGMask);
+    }
+
+    if (!maybeSVGMask) {
+      if (aNewLayer.mSourceURI.IsLocalRef()) {
+        maybeSVGMask = true;
+      } else if (aNewLayer.mSourceURI.GetSourceURL()) {
+        aNewLayer.mSourceURI.GetSourceURL()->GetHasRef(&maybeSVGMask);
       }
-    if (!maybeSVGMask && aNewLayer.mSourceURI) {
-      aNewLayer.mSourceURI->GetHasRef(&maybeSVGMask);
     }
 
     // Return nsChangeHint_UpdateEffects and nsChangeHint_UpdateOverflow if

layout/style/nsStyleStruct.h

@@ -685,7 +685,7 @@ struct nsStyleImageLayers {
   friend struct Layer;
   struct Layer {
     nsStyleImage  mImage;         // [reset]
-    nsCOMPtr<nsIURI> mSourceURI;  // [reset]
+    FragmentOrURL mSourceURI;     // [reset]
                                   // mask-only property
                                   // This property is used for mask layer only.
                                   // For a background layer, it should always

layout/svg/nsSVGEffects.cpp

@@ -395,8 +395,8 @@ nsSVGMaskProperty::nsSVGMaskProperty(nsIFrame* aFrame)
   const nsStyleSVGReset *svgReset = aFrame->StyleSVGReset();
 
   for (uint32_t i = 0; i < svgReset->mMask.mImageCount; i++) {
-    nsSVGPaintingProperty* prop =
-      new nsSVGPaintingProperty(svgReset->mMask.mLayers[i].mSourceURI, aFrame,
+    nsCOMPtr<nsIURI> maskUri = nsSVGEffects::GetMaskURI(aFrame, i);
+    nsSVGPaintingProperty* prop = new nsSVGPaintingProperty(maskUri, aFrame,
                                                             false);
     mProperties.AppendElement(prop);
   }
@@ -964,3 +964,13 @@ nsSVGEffects::GetPaintURI(nsIFrame* aFrame,
 
   return ResolveFragmentOrURL(aFrame, (svgStyle->*aPaint).mPaint.mPaintServer);
 }
+
+already_AddRefed<nsIURI>
+nsSVGEffects::GetMaskURI(nsIFrame* aFrame, uint32_t aIndex)
+{
+  const nsStyleSVGReset* svgReset = aFrame->StyleSVGReset();
+  MOZ_ASSERT(svgReset->mMask.mLayers.Length() > aIndex);
+
+  return ResolveFragmentOrURL(aFrame,
+                              &svgReset->mMask.mLayers[aIndex].mSourceURI);
+}

layout/svg/nsSVGEffects.h

@@ -624,6 +624,12 @@ public:
    */
   static already_AddRefed<nsIURI>
   GetPaintURI(nsIFrame* aFrame, nsStyleSVGPaint nsStyleSVG::* aPaint);
+
+    /**
+   * A helper function to resolve SVG mask URL.
+   */
+  static already_AddRefed<nsIURI>
+  GetMaskURI(nsIFrame* aFrame, uint32_t aIndex);
 };
 
 #endif /*NSSVGEFFECTS_H_*/