PrintPreview: Printing preview of a PDF on Mac with Skia only previews the last page of the PDF

printing/metafile_skia_wrapper.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/logging.h"
 #include "printing/metafile_skia_wrapper.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkDevice.h"
 #include "third_party/skia/include/core/SkMetaData.h"
 
 namespace printing {
 
 namespace {
 
 const char* kDraftModeKey = "CrDraftMode";
 const char* kMetafileKey = "CrMetafile";
 
+#if defined(OS_MACOSX) || defined(OS_WIN)
+const char* kIsPreviewMetafileKey = "CrIsPreviewMetafile";
+#endif
+
 SkMetaData& getMetaData(SkCanvas* canvas) {
   DCHECK(canvas != NULL);
 
   SkDevice* device = canvas->getDevice();
   DCHECK(device != NULL);
   return device->getMetaData();
 }
 
 }  // namespace
 
@@ skipping 27 matching lines @@
 
 // static
 bool MetafileSkiaWrapper::GetDraftMode(SkCanvas* canvas) {
   SkMetaData& meta = getMetaData(canvas);
   bool draft_mode;
   if (!meta.findBool(kDraftModeKey, &draft_mode))
     draft_mode = false;
   return draft_mode;
 }
 
+#if defined(OS_MACOSX) || defined(OS_WIN)
+// static
+void MetafileSkiaWrapper::SetIsPreviewMetafile(SkCanvas* canvas,
+                                               bool is_preview) {
+  SkMetaData& meta = getMetaData(canvas);
+  meta.setBool(kIsPreviewMetafileKey, is_preview);
+}
+
+// static
+bool MetafileSkiaWrapper::IsPreviewMetafile(SkCanvas* canvas) {
+  SkMetaData& meta = getMetaData(canvas);
+  bool is_preview_metafile;
+  if (!meta.findBool(kIsPreviewMetafileKey, &is_preview_metafile))
+    is_preview_metafile = false;
+  return is_preview_metafile;
+}
+#endif
+
 MetafileSkiaWrapper::MetafileSkiaWrapper(Metafile* metafile)
     : metafile_(metafile) {
 }
 
 }  // namespace printing