1 files changed, 147 insertions, 0 deletions
diff --git a/chrome/renderer/printing/print_web_view_helper_mac.mm b/chrome/renderer/printing/print_web_view_helper_mac.mm
new file mode 100644
index 0000000..924860f
--- /dev/null
+++ b/chrome/renderer/printing/print_web_view_helper_mac.mm
@@ -0,0 +1,147 @@
+// Copyright (c) 2012 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 "chrome/renderer/printing/print_web_view_helper.h"
+
+#import <AppKit/AppKit.h>
+
+#include "base/logging.h"
+#include "base/mac/scoped_nsautorelease_pool.h"
+#include "base/metrics/histogram.h"
+#include "chrome/common/print_messages.h"
+#include "printing/metafile.h"
+#include "printing/metafile_impl.h"
+#include "printing/metafile_skia_wrapper.h"
+#include "printing/page_size_margins.h"
+#include "skia/ext/platform_device.h"
+#include "skia/ext/vector_canvas.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebCanvas.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
+
+namespace printing {
+
+using WebKit::WebFrame;
+
+void PrintWebViewHelper::PrintPageInternal(
+    const PrintMsg_PrintPage_Params& params,
+    const gfx::Size& canvas_size,
+    WebFrame* frame) {
+  NativeMetafile metafile;
+  if (!metafile.Init())
+    return;
+
+  int page_number = params.page_number;
+  gfx::Size page_size_in_dpi;
+  gfx::Rect content_area_in_dpi;
+  RenderPage(print_pages_params_->params, page_number, frame, false, &metafile,
+             &page_size_in_dpi, &content_area_in_dpi);
+  metafile.FinishDocument();
+
+  PrintHostMsg_DidPrintPage_Params page_params;
+  page_params.data_size = metafile.GetDataSize();
+  page_params.page_number = page_number;
+  page_params.document_cookie = params.params.document_cookie;
+  page_params.page_size = page_size_in_dpi;
+  page_params.content_area = content_area_in_dpi;
+
+  // Ask the browser to create the shared memory for us.
+  if (!CopyMetafileDataToSharedMem(&metafile,
+                                   &(page_params.metafile_data_handle))) {
+    page_params.data_size = 0;
+  }
+
+  Send(new PrintHostMsg_DidPrintPage(routing_id(), page_params));
+}
+
+bool PrintWebViewHelper::RenderPreviewPage(
+    int page_number,
+    const PrintMsg_Print_Params& print_params) {
+  PrintMsg_Print_Params printParams = print_params;
+  scoped_ptr<Metafile> draft_metafile;
+  Metafile* initial_render_metafile = print_preview_context_.metafile();
+
+  bool render_to_draft = print_preview_context_.IsModifiable() &&
+                         is_print_ready_metafile_sent_;
+
+  if (render_to_draft) {
+    draft_metafile.reset(new PreviewMetafile());
+    if (!draft_metafile->Init()) {
+      print_preview_context_.set_error(
+          PREVIEW_ERROR_MAC_DRAFT_METAFILE_INIT_FAILED);
+      LOG(ERROR) << "Draft PreviewMetafile Init failed";
+      return false;
+    }
+    initial_render_metafile = draft_metafile.get();
+  }
+
+  base::TimeTicks begin_time = base::TimeTicks::Now();
+  gfx::Size page_size;
+  RenderPage(printParams, page_number, print_preview_context_.frame(), true,
+             initial_render_metafile, &page_size, NULL);
+  print_preview_context_.RenderedPreviewPage(
+      base::TimeTicks::Now() - begin_time);
+
+  if (draft_metafile.get()) {
+    draft_metafile->FinishDocument();
+  } else {
+    if (print_preview_context_.IsModifiable() &&
+        print_preview_context_.generate_draft_pages()) {
+      DCHECK(!draft_metafile.get());
+      draft_metafile.reset(
+          print_preview_context_.metafile()->GetMetafileForCurrentPage());
+    }
+  }
+  return PreviewPageRendered(page_number, draft_metafile.get());
+}
+
+void PrintWebViewHelper::RenderPage(
+    const PrintMsg_Print_Params& params, int page_number, WebFrame* frame,
+    bool is_preview, Metafile* metafile, gfx::Size* page_size,
+    gfx::Rect* content_rect) {
+  double scale_factor = 1.0f;
+  double webkit_shrink_factor = frame->getPrintPageShrink(page_number);
+  PageSizeMargins page_layout_in_points;
+  gfx::Rect content_area;
+
+  ComputePageLayoutInPointsForCss(frame, page_number, params,
+                                  ignore_css_margins_, &scale_factor,
+                                  &page_layout_in_points);
+  GetPageSizeAndContentAreaFromPageLayout(page_layout_in_points, page_size,
+                                          &content_area);
+  if (content_rect)
+    *content_rect = content_area;
+
+  scale_factor *= webkit_shrink_factor;
+
+  gfx::Rect canvas_area =
+      params.display_header_footer ? gfx::Rect(*page_size) : content_area;
+
+  {
+    SkDevice* device = metafile->StartPageForVectorCanvas(
+        *page_size, canvas_area, scale_factor);
+    if (!device)
+      return;
+
+    skia::RefPtr<skia::VectorCanvas> canvas =
+        skia::AdoptRef(new skia::VectorCanvas(device));
+    WebKit::WebCanvas* canvas_ptr = canvas.get();
+    MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile);
+    skia::SetIsDraftMode(*canvas, is_print_ready_metafile_sent_);
+    skia::SetIsPreviewMetafile(*canvas, is_preview);
+
+    if (print_pages_params_->params.display_header_footer) {
+      PrintHeaderAndFooter(canvas_ptr, page_number + 1,
+                           print_preview_context_.total_page_count(),
+                           scale_factor, page_layout_in_points,
+                           *header_footer_info_, params);
+    }
+    RenderPageContent(frame, page_number, canvas_area, content_area,
+                      scale_factor, canvas_ptr);
+  }
+
+  // Done printing. Close the device context to retrieve the compiled metafile.
+  metafile->FinishPage();
+}
+
+}  // namespace printing