1 files changed, 100 insertions, 0 deletions
diff --git a/widget/android/nsDeviceContextAndroid.cpp b/widget/android/nsDeviceContextAndroid.cpp
new file mode 100644
index 0000000000..e6643ef9b3
--- /dev/null
+++ b/widget/android/nsDeviceContextAndroid.cpp
@@ -0,0 +1,100 @@
+/* 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 "nsDeviceContextAndroid.h"
+
+#include "mozilla/gfx/PrintTargetPDF.h"
+#include "mozilla/RefPtr.h"
+#include "nsComponentManagerUtils.h"
+#include "nsString.h"
+#include "nsIFile.h"
+#include "nsIFileStreams.h"
+#include "nsIPrintSettings.h"
+#include "nsIFileStreams.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsAnonymousTemporaryFile.h"
+
+using namespace mozilla;
+using namespace mozilla::gfx;
+
+NS_IMPL_ISUPPORTS(nsDeviceContextSpecAndroid, nsIDeviceContextSpec)
+
+nsDeviceContextSpecAndroid::~nsDeviceContextSpecAndroid() {
+  if (mTempFile) {
+    mTempFile->Remove(false);
+  }
+}
+
+already_AddRefed<PrintTarget> nsDeviceContextSpecAndroid::MakePrintTarget() {
+  double width, height;
+  mPrintSettings->GetEffectiveSheetSize(&width, &height);
+
+  // convert twips to points
+  width /= TWIPS_PER_POINT_FLOAT;
+  height /= TWIPS_PER_POINT_FLOAT;
+
+  auto stream = [&]() -> nsCOMPtr<nsIOutputStream> {
+    if (mPrintSettings->GetOutputDestination() ==
+        nsIPrintSettings::kOutputDestinationStream) {
+      nsCOMPtr<nsIOutputStream> out;
+      mPrintSettings->GetOutputStream(getter_AddRefs(out));
+      return out;
+    }
+    if (NS_FAILED(
+            NS_OpenAnonymousTemporaryNsIFile(getter_AddRefs(mTempFile)))) {
+      return nullptr;
+    }
+    // Print to printer not supported...
+    nsCOMPtr<nsIFileOutputStream> s =
+        do_CreateInstance("@mozilla.org/network/file-output-stream;1");
+    if (NS_FAILED(s->Init(mTempFile, -1, -1, 0))) {
+      return nullptr;
+    }
+    return s;
+  }();
+
+  return PrintTargetPDF::CreateOrNull(stream, IntSize::Ceil(width, height));
+}
+
+NS_IMETHODIMP
+nsDeviceContextSpecAndroid::Init(nsIPrintSettings* aPS, bool aIsPrintPreview) {
+  mPrintSettings = aPS;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDeviceContextSpecAndroid::BeginDocument(const nsAString& aTitle,
+                                          const nsAString& aPrintToFileName,
+                                          int32_t aStartPage,
+                                          int32_t aEndPage) {
+  return NS_OK;
+}
+
+RefPtr<PrintEndDocumentPromise> nsDeviceContextSpecAndroid::EndDocument() {
+  return nsIDeviceContextSpec::EndDocumentPromiseFromResult(DoEndDocument(),
+                                                            __func__);
+}
+
+NS_IMETHODIMP
+nsDeviceContextSpecAndroid::DoEndDocument() {
+  if (mPrintSettings->GetOutputDestination() ==
+          nsIPrintSettings::kOutputDestinationFile &&
+      mTempFile) {
+    nsAutoString targetPath;
+    mPrintSettings->GetToFileName(targetPath);
+    nsCOMPtr<nsIFile> destFile;
+    MOZ_TRY(NS_NewLocalFile(targetPath, false, getter_AddRefs(destFile)));
+    nsAutoString destLeafName;
+    MOZ_TRY(destFile->GetLeafName(destLeafName));
+
+    nsCOMPtr<nsIFile> destDir;
+    MOZ_TRY(destFile->GetParent(getter_AddRefs(destDir)));
+
+    MOZ_TRY(mTempFile->MoveTo(destDir, destLeafName));
+    destFile->SetPermissions(0666);
+
+    mTempFile = nullptr;
+  }
+  return NS_OK;
+}