Bug 1299715 - Part 1. Replace ContainerItemType::eSVGEffects by ContainerItemType::eFilter. r=mstange

MozReview-Commit-ID: 73mxBsY3W0p

--HG--
extra : rebase_source : e5fe4f2a17a43182fb32f9e7b991d16048373748

layout/base/nsDisplayList.cpp

@@ -6723,6 +6723,17 @@ nsCharClipDisplayItem::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
   }
 }
 
+nsDisplaySVGEffects::nsDisplaySVGEffects(nsDisplayListBuilder* aBuilder,
+                                         nsIFrame* aFrame, nsDisplayList* aList,
+                                         bool aHandleOpacity,
+                                         const DisplayItemScrollClip* aScrollClip)
+  : nsDisplayWrapList(aBuilder, aFrame, aList, aScrollClip)
+  , mEffectsBounds(aFrame->GetVisualOverflowRectRelativeToSelf())
+  , mHandleOpacity(aHandleOpacity)
+{
+  MOZ_COUNT_CTOR(nsDisplaySVGEffects);
+}
+
 nsDisplaySVGEffects::nsDisplaySVGEffects(nsDisplayListBuilder* aBuilder,
                                          nsIFrame* aFrame, nsDisplayList* aList,
                                          bool aHandleOpacity)
@@ -6817,8 +6828,9 @@ bool nsDisplaySVGEffects::ValidateSVGFrame()
 
 nsDisplayMask::nsDisplayMask(nsDisplayListBuilder* aBuilder,
                              nsIFrame* aFrame, nsDisplayList* aList,
-                             bool aHandleOpacity)
-  : nsDisplaySVGEffects(aBuilder, aFrame, aList, aHandleOpacity)
+                             bool aHandleOpacity,
+                             const DisplayItemScrollClip* aScrollClip)
+  : nsDisplaySVGEffects(aBuilder, aFrame, aList, aHandleOpacity, aScrollClip)
 {
   MOZ_COUNT_CTOR(nsDisplayMask);
 }

layout/base/nsDisplayList.h

@@ -3839,6 +3839,9 @@ private:
 
 class nsDisplaySVGEffects: public nsDisplayWrapList {
 public:
+  nsDisplaySVGEffects(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
+                      nsDisplayList* aList, bool aHandleOpacity,
+                      const DisplayItemScrollClip* aScrollClip);
   nsDisplaySVGEffects(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
                       nsDisplayList* aList, bool aHandleOpacity);
 #ifdef NS_BUILD_REFCNT_LOGGING
@@ -3886,7 +3889,8 @@ protected:
 class nsDisplayMask : public nsDisplaySVGEffects {
 public:
   nsDisplayMask(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
-                      nsDisplayList* aList, bool aHandleOpacity);
+                nsDisplayList* aList, bool aHandleOpacity,
+                const DisplayItemScrollClip* aScrollClip);
 #ifdef NS_BUILD_REFCNT_LOGGING
   virtual ~nsDisplayMask();
 #endif

layout/generic/nsFrame.cpp

@@ -2183,8 +2183,10 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
     }
     inTransform = true;
   }
+  bool usingFilter = StyleEffects()->HasFilters();
+  bool usingMask = nsSVGIntegrationUtils::UsingMaskOrClipPathForFrame(this);
+  bool usingSVGEffects = usingFilter || usingMask;
 
-  bool usingSVGEffects = nsSVGIntegrationUtils::UsingEffectsForFrame(this);
   nsRect dirtyRectOutsideSVGEffects = dirtyRect;
   nsDisplayList hoistedScrollInfoItemsStorage;
   if (usingSVGEffects) {
@@ -2226,7 +2228,7 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
     eTransform,
     eSeparatorTransforms,
     eOpacity,
-    eSVGEffects,
+    eFilter,
     eBlendContainer
   };
 
@@ -2258,8 +2260,8 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
     } else {
       clipCapturedBy = ContainerItemType::eTransform;
     }
-  } else if (usingSVGEffects) {
-    clipCapturedBy = ContainerItemType::eSVGEffects;
+  } else if (usingFilter) {
+    clipCapturedBy = ContainerItemType::eFilter;
   }
 
   bool clearClip = false;
@@ -2407,26 +2409,21 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
    * output even if the element being filtered wouldn't otherwise do so.
    */
   if (usingSVGEffects) {
-    MOZ_ASSERT(StyleEffects()->HasFilters() ||
-               nsSVGIntegrationUtils::UsingMaskOrClipPathForFrame(this),
+    MOZ_ASSERT(usingFilter ||usingMask,
                "Beside filter & mask/clip-path, what else effect do we have?");
 
-    if (clipCapturedBy == ContainerItemType::eSVGEffects) {
+    if (clipCapturedBy == ContainerItemType::eFilter) {
       clipState.ExitStackingContextContents(&containerItemScrollClip);
     }
     // Revert to the post-filter dirty rect.
     buildingDisplayList.SetDirtyRect(dirtyRectOutsideSVGEffects);
 
     // Skip all filter effects while generating glyph mask.
-    bool createFilter =
-      StyleEffects()->HasFilters() && !aBuilder->IsForGenerateGlyphMask();
-    bool createMask = nsSVGIntegrationUtils::UsingMaskOrClipPathForFrame(this);
-
-    if (createFilter) {
+    if (usingFilter && !aBuilder->IsForGenerateGlyphMask()) {
       // If we are going to create a mask display item, handle opacity effect
       // in that mask display item; Otherwise, take care of opacity in this
       // filter display item.
-      bool handleOpacity = !createMask && !useOpacity;
+      bool handleOpacity = !usingMask && !useOpacity;
 
       /* List now emptied, so add the new list to the top. */
       resultList.AppendNewToTop(
@@ -2434,11 +2431,13 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
                                        handleOpacity));
     }
 
-    if (createMask) {
+    if (usingMask) {
+      DisplayListClipState::AutoSaveRestore maskClipState(aBuilder);
+      maskClipState.Clear();
       /* List now emptied, so add the new list to the top. */
       resultList.AppendNewToTop(
           new (aBuilder) nsDisplayMask(aBuilder, this, &resultList,
-                                       !useOpacity));
+                                       !useOpacity, containerItemScrollClip));
     }
 
     // Also add the hoisted scroll info items. We need those for APZ scrolling