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-rw-r--r--layout/printing/PrintTranslator.cpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/layout/printing/PrintTranslator.cpp b/layout/printing/PrintTranslator.cpp
new file mode 100644
index 0000000000..b3d5609a08
--- /dev/null
+++ b/layout/printing/PrintTranslator.cpp
@@ -0,0 +1,86 @@
+/* -*- 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/. */
+
+#include "PrintTranslator.h"
+
+#include "gfxContext.h"
+#include "nsDeviceContext.h"
+#include "mozilla/gfx/RecordedEvent.h"
+#include "mozilla/gfx/RecordingTypes.h"
+#include "mozilla/UniquePtr.h"
+#include "InlineTranslator.h"
+
+using namespace mozilla::gfx;
+
+namespace mozilla {
+namespace layout {
+
+PrintTranslator::PrintTranslator(nsDeviceContext* aDeviceContext)
+ : mDeviceContext(aDeviceContext) {
+ UniquePtr<gfxContext> context =
+ mDeviceContext->CreateReferenceRenderingContext();
+ mBaseDT = context->GetDrawTarget();
+}
+
+bool PrintTranslator::TranslateRecording(PRFileDescStream& aRecording) {
+ uint32_t magicInt;
+ ReadElement(aRecording, magicInt);
+ if (magicInt != mozilla::gfx::kMagicInt) {
+ return false;
+ }
+
+ uint16_t majorRevision;
+ ReadElement(aRecording, majorRevision);
+ if (majorRevision != kMajorRevision) {
+ return false;
+ }
+
+ uint16_t minorRevision;
+ ReadElement(aRecording, minorRevision);
+ if (minorRevision > kMinorRevision) {
+ return false;
+ }
+
+ int32_t eventType;
+ ReadElement(aRecording, eventType);
+ while (aRecording.good()) {
+ bool success = RecordedEvent::DoWithEventFromStream(
+ aRecording, static_cast<RecordedEvent::EventType>(eventType),
+ [&](RecordedEvent* recordedEvent) -> bool {
+ // Make sure that the whole event was read from the stream.
+ if (!aRecording.good()) {
+ return false;
+ }
+
+ return recordedEvent->PlayEvent(this);
+ });
+
+ if (!success) {
+ return false;
+ }
+
+ ReadElement(aRecording, eventType);
+ }
+
+ return true;
+}
+
+already_AddRefed<DrawTarget> PrintTranslator::CreateDrawTarget(
+ ReferencePtr aRefPtr, const gfx::IntSize& aSize,
+ gfx::SurfaceFormat aFormat) {
+ UniquePtr<gfxContext> context = mDeviceContext->CreateRenderingContext();
+ if (!context) {
+ NS_WARNING("Failed to create rendering context for print.");
+ return nullptr;
+ }
+
+ RefPtr<DrawTarget> drawTarget = context->GetDrawTarget();
+ AddDrawTarget(aRefPtr, drawTarget);
+ return drawTarget.forget();
+}
+
+} // namespace layout
+} // namespace mozilla