1 files changed, 179 insertions, 0 deletions
diff --git a/layout/printing/PrintTranslator.h b/layout/printing/PrintTranslator.h
new file mode 100644
index 0000000000..629b54854d
--- /dev/null
+++ b/layout/printing/PrintTranslator.h
@@ -0,0 +1,179 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_layout_PrintTranslator_h
+#define mozilla_layout_PrintTranslator_h
+
+#include <istream>
+
+#include "DrawEventRecorder.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Filters.h"
+#include "mozilla/gfx/RecordedEvent.h"
+
+class nsDeviceContext;
+
+namespace mozilla {
+namespace layout {
+
+using gfx::DrawTarget;
+using gfx::FilterNode;
+using gfx::GradientStops;
+using gfx::NativeFontResource;
+using gfx::Path;
+using gfx::RecordedDependentSurface;
+using gfx::ReferencePtr;
+using gfx::ScaledFont;
+using gfx::SourceSurface;
+using gfx::Translator;
+using gfx::UnscaledFont;
+
+class PrintTranslator final : public Translator {
+ public:
+  explicit PrintTranslator(nsDeviceContext* aDeviceContext);
+
+  bool TranslateRecording(PRFileDescStream& aRecording);
+
+  DrawTarget* LookupDrawTarget(ReferencePtr aRefPtr) final {
+    DrawTarget* result = mDrawTargets.GetWeak(aRefPtr);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  Path* LookupPath(ReferencePtr aRefPtr) final {
+    Path* result = mPaths.GetWeak(aRefPtr);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  SourceSurface* LookupSourceSurface(ReferencePtr aRefPtr) final {
+    SourceSurface* result = mSourceSurfaces.GetWeak(aRefPtr);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  FilterNode* LookupFilterNode(ReferencePtr aRefPtr) final {
+    FilterNode* result = mFilterNodes.GetWeak(aRefPtr);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  already_AddRefed<GradientStops> LookupGradientStops(
+      ReferencePtr aRefPtr) final {
+    return mGradientStops.Get(aRefPtr);
+  }
+
+  ScaledFont* LookupScaledFont(ReferencePtr aRefPtr) final {
+    ScaledFont* result = mScaledFonts.GetWeak(aRefPtr);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  UnscaledFont* LookupUnscaledFont(ReferencePtr aRefPtr) final {
+    UnscaledFont* result = mUnscaledFonts.GetWeak(aRefPtr);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  NativeFontResource* LookupNativeFontResource(uint64_t aKey) final {
+    NativeFontResource* result = mNativeFontResources.GetWeak(aKey);
+    MOZ_ASSERT(result);
+    return result;
+  }
+
+  void AddDrawTarget(ReferencePtr aRefPtr, DrawTarget* aDT) final {
+    mDrawTargets.InsertOrUpdate(aRefPtr, RefPtr{aDT});
+  }
+
+  void AddPath(ReferencePtr aRefPtr, Path* aPath) final {
+    mPaths.InsertOrUpdate(aRefPtr, RefPtr{aPath});
+  }
+
+  void AddSourceSurface(ReferencePtr aRefPtr, SourceSurface* aSurface) final {
+    mSourceSurfaces.InsertOrUpdate(aRefPtr, RefPtr{aSurface});
+  }
+
+  void AddFilterNode(ReferencePtr aRefPtr, FilterNode* aFilter) final {
+    mFilterNodes.InsertOrUpdate(aRefPtr, RefPtr{aFilter});
+  }
+
+  void AddGradientStops(ReferencePtr aRefPtr, GradientStops* aStops) final {
+    mGradientStops.InsertOrUpdate(aRefPtr, RefPtr{aStops});
+  }
+
+  void AddScaledFont(ReferencePtr aRefPtr, ScaledFont* aScaledFont) final {
+    mScaledFonts.InsertOrUpdate(aRefPtr, RefPtr{aScaledFont});
+  }
+
+  void AddUnscaledFont(ReferencePtr aRefPtr,
+                       UnscaledFont* aUnscaledFont) final {
+    mUnscaledFonts.InsertOrUpdate(aRefPtr, RefPtr{aUnscaledFont});
+  }
+
+  void AddNativeFontResource(uint64_t aKey,
+                             NativeFontResource* aScaledFontResouce) final {
+    mNativeFontResources.InsertOrUpdate(aKey, RefPtr{aScaledFontResouce});
+  }
+
+  void RemoveDrawTarget(ReferencePtr aRefPtr) final {
+    ReferencePtr currentDT = mCurrentDT;
+    if (currentDT == aRefPtr) {
+      mCurrentDT = nullptr;
+    }
+    mDrawTargets.Remove(aRefPtr);
+  }
+
+  bool SetCurrentDrawTarget(ReferencePtr aRefPtr) final {
+    mCurrentDT = mDrawTargets.GetWeak(aRefPtr);
+    return !!mCurrentDT;
+  }
+
+  void RemovePath(ReferencePtr aRefPtr) final { mPaths.Remove(aRefPtr); }
+
+  void RemoveSourceSurface(ReferencePtr aRefPtr) final {
+    mSourceSurfaces.Remove(aRefPtr);
+  }
+
+  void RemoveFilterNode(ReferencePtr aRefPtr) final {
+    mFilterNodes.Remove(aRefPtr);
+  }
+
+  void RemoveGradientStops(ReferencePtr aRefPtr) final {
+    mGradientStops.Remove(aRefPtr);
+  }
+
+  void RemoveScaledFont(ReferencePtr aRefPtr) final {
+    mScaledFonts.Remove(aRefPtr);
+  }
+
+  void RemoveUnscaledFont(ReferencePtr aRefPtr) final {
+    mUnscaledFonts.Remove(aRefPtr);
+  }
+
+  already_AddRefed<DrawTarget> CreateDrawTarget(
+      ReferencePtr aRefPtr, const gfx::IntSize& aSize,
+      gfx::SurfaceFormat aFormat) final;
+
+  mozilla::gfx::DrawTarget* GetReferenceDrawTarget() final { return mBaseDT; }
+
+ private:
+  RefPtr<nsDeviceContext> mDeviceContext;
+  RefPtr<DrawTarget> mBaseDT;
+
+  nsRefPtrHashtable<nsPtrHashKey<void>, DrawTarget> mDrawTargets;
+  nsRefPtrHashtable<nsPtrHashKey<void>, Path> mPaths;
+  nsRefPtrHashtable<nsPtrHashKey<void>, SourceSurface> mSourceSurfaces;
+  nsRefPtrHashtable<nsPtrHashKey<void>, FilterNode> mFilterNodes;
+  nsRefPtrHashtable<nsPtrHashKey<void>, GradientStops> mGradientStops;
+  nsRefPtrHashtable<nsPtrHashKey<void>, ScaledFont> mScaledFonts;
+  nsRefPtrHashtable<nsPtrHashKey<void>, UnscaledFont> mUnscaledFonts;
+  nsRefPtrHashtable<nsUint64HashKey, NativeFontResource> mNativeFontResources;
+};
+
+}  // namespace layout
+}  // namespace mozilla
+
+#endif  // mozilla_layout_PrintTranslator_h