Add m-esr52 at 52.6.0

1 files changed, 315 insertions, 0 deletions

diff --git a/layout/base/nsLayoutDebugger.cpp b/layout/base/nsLayoutDebugger.cpp
new file mode 100644
index 000000000..22c313c72
--- /dev/null
+++ b/layout/base/nsLayoutDebugger.cpp
@@ -0,0 +1,315 @@
+/* -*- 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/. */
+
+/*
+ * implementation of interface that allows layout-debug extension access
+ * to some internals of layout
+ */
+
+#include "nsILayoutDebugger.h"
+
+#include "nsAttrValue.h"
+#include "nsFrame.h"
+#include "nsDisplayList.h"
+#include "FrameLayerBuilder.h"
+#include "nsPrintfCString.h"
+#include "DisplayItemScrollClip.h"
+
+#include <iostream>
+#include <stdio.h>
+
+using namespace mozilla;
+using namespace mozilla::layers;
+
+#ifdef DEBUG
+class nsLayoutDebugger : public nsILayoutDebugger {
+public:
+  nsLayoutDebugger();
+
+  NS_DECL_ISUPPORTS
+
+  NS_IMETHOD SetShowFrameBorders(bool aEnable) override;
+
+  NS_IMETHOD GetShowFrameBorders(bool* aResult) override;
+
+  NS_IMETHOD SetShowEventTargetFrameBorder(bool aEnable) override;
+
+  NS_IMETHOD GetShowEventTargetFrameBorder(bool* aResult) override;
+
+protected:
+  virtual ~nsLayoutDebugger();
+};
+
+nsresult
+NS_NewLayoutDebugger(nsILayoutDebugger** aResult)
+{
+  NS_PRECONDITION(aResult, "null OUT ptr");
+  if (!aResult) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  nsLayoutDebugger* it = new nsLayoutDebugger();
+  return it->QueryInterface(NS_GET_IID(nsILayoutDebugger), (void**)aResult);
+}
+
+nsLayoutDebugger::nsLayoutDebugger()
+{
+}
+
+nsLayoutDebugger::~nsLayoutDebugger()
+{
+}
+
+NS_IMPL_ISUPPORTS(nsLayoutDebugger, nsILayoutDebugger)
+
+NS_IMETHODIMP
+nsLayoutDebugger::SetShowFrameBorders(bool aEnable)
+{
+  nsFrame::ShowFrameBorders(aEnable);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLayoutDebugger::GetShowFrameBorders(bool* aResult)
+{
+  *aResult = nsFrame::GetShowFrameBorders();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLayoutDebugger::SetShowEventTargetFrameBorder(bool aEnable)
+{
+  nsFrame::ShowEventTargetFrameBorder(aEnable);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLayoutDebugger::GetShowEventTargetFrameBorder(bool* aResult)
+{
+  *aResult = nsFrame::GetShowEventTargetFrameBorder();
+  return NS_OK;
+}
+
+#endif
+
+std::ostream& operator<<(std::ostream& os, const nsPrintfCString& rhs) {
+  os << rhs.get();
+  return os;
+}
+
+static void
+PrintDisplayListTo(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList,
+                   std::stringstream& aStream, uint32_t aIndent, bool aDumpHtml);
+
+static void
+PrintDisplayItemTo(nsDisplayListBuilder* aBuilder, nsDisplayItem* aItem,
+                   std::stringstream& aStream, uint32_t aIndent, bool aDumpSublist, bool aDumpHtml)
+{
+  std::stringstream ss;
+
+  if (!aDumpHtml) {
+    for (uint32_t indent = 0; indent < aIndent; indent++) {
+      aStream << "  ";
+    }
+  }
+  nsAutoString contentData;
+  nsIFrame* f = aItem->Frame();
+#ifdef DEBUG_FRAME_DUMP
+  f->GetFrameName(contentData);
+#endif
+  nsIContent* content = f->GetContent();
+  if (content) {
+    nsString tmp;
+    if (content->GetID()) {
+      content->GetID()->ToString(tmp);
+      contentData.AppendLiteral(" id:");
+      contentData.Append(tmp);
+    }
+    if (content->GetClasses()) {
+      content->GetClasses()->ToString(tmp);
+      contentData.AppendLiteral(" class:");
+      contentData.Append(tmp);
+    }
+  }
+  bool snap;
+  nsRect rect = aItem->GetBounds(aBuilder, &snap);
+  nsRect layerRect = rect - (*aItem->GetAnimatedGeometryRoot())->GetOffsetToCrossDoc(aItem->ReferenceFrame());
+  nsRect vis = aItem->GetVisibleRect();
+  nsRect component = aItem->GetComponentAlphaBounds(aBuilder);
+  nsDisplayList* list = aItem->GetChildren();
+  const DisplayItemClip& clip = aItem->GetClip();
+  nsRegion opaque = aItem->GetOpaqueRegion(aBuilder, &snap);
+
+#ifdef MOZ_DUMP_PAINTING
+  if (aDumpHtml && aItem->Painted()) {
+    nsCString string(aItem->Name());
+    string.Append('-');
+    string.AppendInt((uint64_t)aItem);
+    aStream << nsPrintfCString("<a href=\"javascript:ViewImage('%s')\">", string.BeginReading());
+  }
+#endif
+
+  aStream << nsPrintfCString("%s p=0x%p f=0x%p(%s) %sbounds(%d,%d,%d,%d) layerBounds(%d,%d,%d,%d) visible(%d,%d,%d,%d) componentAlpha(%d,%d,%d,%d) clip(%s) scrollClip(%s)%s ref=0x%p agr=0x%p",
+          aItem->Name(), aItem, (void*)f, NS_ConvertUTF16toUTF8(contentData).get(),
+          (aItem->ZIndex() ? nsPrintfCString("z=%d ", aItem->ZIndex()).get() : ""),
+          rect.x, rect.y, rect.width, rect.height,
+          layerRect.x, layerRect.y, layerRect.width, layerRect.height,
+          vis.x, vis.y, vis.width, vis.height,
+          component.x, component.y, component.width, component.height,
+          clip.ToString().get(),
+          DisplayItemScrollClip::ToString(aItem->ScrollClip()).get(),
+          aItem->IsUniform(aBuilder) ? " uniform" : "",
+          aItem->ReferenceFrame(), aItem->GetAnimatedGeometryRoot()->mFrame);
+
+  for (auto iter = opaque.RectIter(); !iter.Done(); iter.Next()) {
+    const nsRect& r = iter.Get();
+    aStream << nsPrintfCString(" (opaque %d,%d,%d,%d)", r.x, r.y, r.width, r.height);
+  }
+
+  if (aItem->Frame()->StyleDisplay()->mWillChange.Length() > 0) {
+    aStream << " (will-change=";
+    for (size_t i = 0; i < aItem->Frame()->StyleDisplay()->mWillChange.Length(); i++) {
+      if (i > 0) {
+        aStream << ",";
+      }
+      aStream << NS_LossyConvertUTF16toASCII(aItem->Frame()->StyleDisplay()->mWillChange[i]).get();
+    }
+    aStream << ")";
+  }
+
+  // Display item specific debug info
+  aItem->WriteDebugInfo(aStream);
+
+#ifdef MOZ_DUMP_PAINTING
+  if (aDumpHtml && aItem->Painted()) {
+    aStream << "</a>";
+  }
+#endif
+  uint32_t key = aItem->GetPerFrameKey();
+  Layer* layer = mozilla::FrameLayerBuilder::GetDebugOldLayerFor(f, key);
+  if (layer) {
+    if (aDumpHtml) {
+      aStream << nsPrintfCString(" <a href=\"#%p\">layer=%p</a>", layer, layer);
+    } else {
+      aStream << nsPrintfCString(" layer=0x%p", layer);
+    }
+  }
+#ifdef MOZ_DUMP_PAINTING
+  if (aItem->GetType() == nsDisplayItem::TYPE_MASK) {
+    nsCString str;
+    (static_cast<nsDisplayMask*>(aItem))->PrintEffects(str);
+    aStream << str.get();
+  }
+
+  if (aItem->GetType() == nsDisplayItem::TYPE_FILTER) {
+    nsCString str;
+    (static_cast<nsDisplayFilter*>(aItem))->PrintEffects(str);
+    aStream << str.get();
+  }
+#endif
+  aStream << "\n";
+#ifdef MOZ_DUMP_PAINTING
+  if (aDumpHtml && aItem->Painted()) {
+    nsCString string(aItem->Name());
+    string.Append('-');
+    string.AppendInt((uint64_t)aItem);
+    aStream << nsPrintfCString("<br><img id=\"%s\">\n", string.BeginReading());
+  }
+#endif
+
+  if (aDumpSublist && list) {
+    PrintDisplayListTo(aBuilder, *list, aStream, aIndent+1, aDumpHtml);
+  }
+}
+
+static void
+PrintDisplayListTo(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList,
+                   std::stringstream& aStream, uint32_t aIndent, bool aDumpHtml)
+{
+  if (aDumpHtml) {
+    aStream << "<ul>";
+  }
+
+  for (nsDisplayItem* i = aList.GetBottom(); i != nullptr; i = i->GetAbove()) {
+    if (aDumpHtml) {
+      aStream << "<li>";
+    }
+    PrintDisplayItemTo(aBuilder, i, aStream, aIndent, true, aDumpHtml);
+    if (aDumpHtml) {
+      aStream << "</li>";
+    }
+  }
+
+  if (aDumpHtml) {
+    aStream << "</ul>";
+  }
+}
+
+void
+nsFrame::PrintDisplayList(nsDisplayListBuilder* aBuilder,
+                          const nsDisplayList& aList,
+                          std::stringstream& aStream,
+                          bool aDumpHtml)
+{
+  PrintDisplayListTo(aBuilder, aList, aStream, 0, aDumpHtml);
+}
+
+/**
+ * The two functions below are intended to be called from a debugger.
+ */
+void
+PrintDisplayItemToStdout(nsDisplayListBuilder* aBuilder, nsDisplayItem* aItem)
+{
+  std::stringstream stream;
+  PrintDisplayItemTo(aBuilder, aItem, stream, 0, true, false);
+  std::cout << stream.str() << std::endl;
+}
+
+void
+PrintDisplayListToStdout(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList)
+{
+  std::stringstream stream;
+  PrintDisplayListTo(aBuilder, aList, stream, 0, false);
+  std::cout << stream.str() << std::endl;
+}
+
+#ifdef MOZ_DUMP_PAINTING
+static void
+PrintDisplayListSetItem(nsDisplayListBuilder* aBuilder,
+                        const char* aItemName,
+                        const nsDisplayList& aList,
+                        std::stringstream& aStream,
+                        bool aDumpHtml)
+{
+  if (aDumpHtml) {
+    aStream << "<li>";
+  }
+  aStream << aItemName << "\n";
+  PrintDisplayListTo(aBuilder, aList, aStream, 0, aDumpHtml);
+  if (aDumpHtml) {
+    aStream << "</li>";
+  }
+}
+
+void
+nsFrame::PrintDisplayListSet(nsDisplayListBuilder* aBuilder,
+                             const nsDisplayListSet& aSet,
+                             std::stringstream& aStream,
+                             bool aDumpHtml)
+{
+  if (aDumpHtml) {
+    aStream << "<ul>";
+  }
+  PrintDisplayListSetItem(aBuilder, "[BorderBackground]", *(aSet.BorderBackground()), aStream, aDumpHtml);
+  PrintDisplayListSetItem(aBuilder, "[BlockBorderBackgrounds]", *(aSet.BlockBorderBackgrounds()), aStream, aDumpHtml);
+  PrintDisplayListSetItem(aBuilder, "[Floats]", *(aSet.Floats()), aStream, aDumpHtml);
+  PrintDisplayListSetItem(aBuilder, "[PositionedDescendants]", *(aSet.PositionedDescendants()), aStream, aDumpHtml);
+  PrintDisplayListSetItem(aBuilder, "[Outlines]", *(aSet.Outlines()), aStream, aDumpHtml);
+  PrintDisplayListSetItem(aBuilder, "[Content]", *(aSet.Content()), aStream, aDumpHtml);
+  if (aDumpHtml) {
+    aStream << "</ul>";
+  }
+}
+
+#endif