diff -r 000000000000 -r 6474c204b198 widget/cocoa/nsDeviceContextSpecX.mm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/cocoa/nsDeviceContextSpecX.mm	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "nsDeviceContextSpecX.h"
+
+#include "nsCRT.h"
+#include <unistd.h>
+
+#include "nsAutoPtr.h"
+#include "nsIServiceManager.h"
+#include "nsIPrintOptions.h"
+#include "nsPrintSettingsX.h"
+
+#include "gfxQuartzSurface.h"
+
+// This must be the last include:
+#include "nsObjCExceptions.h"
+
+nsDeviceContextSpecX::nsDeviceContextSpecX()
+: mPrintSession(NULL)
+, mPageFormat(kPMNoPageFormat)
+, mPrintSettings(kPMNoPrintSettings)
+{
+}
+
+nsDeviceContextSpecX::~nsDeviceContextSpecX()
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
+
+  if (mPrintSession)
+    ::PMRelease(mPrintSession);
+
+  NS_OBJC_END_TRY_ABORT_BLOCK;
+}
+
+NS_IMPL_ISUPPORTS(nsDeviceContextSpecX, nsIDeviceContextSpec)
+
+NS_IMETHODIMP nsDeviceContextSpecX::Init(nsIWidget *aWidget,
+                                         nsIPrintSettings* aPS,
+                                         bool aIsPrintPreview)
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+  nsRefPtr<nsPrintSettingsX> settings(do_QueryObject(aPS));
+  if (!settings)
+    return NS_ERROR_NO_INTERFACE;
+
+  mPrintSession = settings->GetPMPrintSession();
+  ::PMRetain(mPrintSession);
+  mPageFormat = settings->GetPMPageFormat();
+  mPrintSettings = settings->GetPMPrintSettings();
+
+  return NS_OK;
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+NS_IMETHODIMP nsDeviceContextSpecX::BeginDocument(const nsAString& aTitle, 
+                                                  char16_t*       aPrintToFileName,
+                                                  int32_t          aStartPage, 
+                                                  int32_t          aEndPage)
+{
+    NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+    if (!aTitle.IsEmpty()) {
+      CFStringRef cfString =
+        ::CFStringCreateWithCharacters(NULL, reinterpret_cast<const UniChar*>(aTitle.BeginReading()),
+                                             aTitle.Length());
+      if (cfString) {
+        ::PMPrintSettingsSetJobName(mPrintSettings, cfString);
+        ::CFRelease(cfString);
+      }
+    }
+
+    OSStatus status;
+    status = ::PMSetFirstPage(mPrintSettings, aStartPage, false);
+    NS_ASSERTION(status == noErr, "PMSetFirstPage failed");
+    status = ::PMSetLastPage(mPrintSettings, aEndPage, false);
+    NS_ASSERTION(status == noErr, "PMSetLastPage failed");
+
+    status = ::PMSessionBeginCGDocumentNoDialog(mPrintSession, mPrintSettings, mPageFormat);
+    if (status != noErr)
+      return NS_ERROR_ABORT;
+
+    return NS_OK;
+
+    NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+NS_IMETHODIMP nsDeviceContextSpecX::EndDocument()
+{
+    NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+    ::PMSessionEndDocumentNoDialog(mPrintSession);
+    return NS_OK;
+
+    NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+NS_IMETHODIMP nsDeviceContextSpecX::BeginPage()
+{
+    NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+    PMSessionError(mPrintSession);
+    OSStatus status = ::PMSessionBeginPageNoDialog(mPrintSession, mPageFormat, NULL);
+    if (status != noErr) return NS_ERROR_ABORT;
+    return NS_OK;
+
+    NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+NS_IMETHODIMP nsDeviceContextSpecX::EndPage()
+{
+    NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+    OSStatus status = ::PMSessionEndPageNoDialog(mPrintSession);
+    if (status != noErr) return NS_ERROR_ABORT;
+    return NS_OK;
+
+    NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+void nsDeviceContextSpecX::GetPaperRect(double* aTop, double* aLeft, double* aBottom, double* aRight)
+{
+    NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
+
+    PMRect paperRect;
+    ::PMGetAdjustedPaperRect(mPageFormat, &paperRect);
+
+    *aTop = paperRect.top, *aLeft = paperRect.left;
+    *aBottom = paperRect.bottom, *aRight = paperRect.right;
+
+    NS_OBJC_END_TRY_ABORT_BLOCK;
+}
+
+NS_IMETHODIMP nsDeviceContextSpecX::GetSurfaceForPrinter(gfxASurface **surface)
+{
+    NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+    double top, left, bottom, right;
+    GetPaperRect(&top, &left, &bottom, &right);
+    const double width = right - left;
+    const double height = bottom - top;
+
+    CGContextRef context;
+    ::PMSessionGetCGGraphicsContext(mPrintSession, &context);
+
+    nsRefPtr<gfxASurface> newSurface;
+
+    if (context) {
+        // Initially, origin is at bottom-left corner of the paper.
+        // Here, we translate it to top-left corner of the paper.
+        CGContextTranslateCTM(context, 0, height);
+        CGContextScaleCTM(context, 1.0, -1.0);
+        newSurface = new gfxQuartzSurface(context, gfxSize(width, height), true);
+    } else {
+        newSurface = new gfxQuartzSurface(gfxSize((int32_t)width, (int32_t)height), gfxImageFormat::ARGB32, true);
+    }
+
+    if (!newSurface)
+        return NS_ERROR_FAILURE;
+
+    *surface = newSurface;
+    NS_ADDREF(*surface);
+
+    return NS_OK;
+
+    NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}