[Chrome] Support NumCopies print preset

chrome/renderer/pepper/pepper_printing_renderer_host.cc

+// Copyright 2014 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/pepper/pepper_printing_renderer_host.h"
+
+#include "chrome/common/print_messages.h"
+#include "chrome/common/render_messages.h"
+#include "chrome/renderer/printing/print_web_view_helper.h"
+#include "content/public/renderer/pepper_plugin_instance.h"
+#include "content/public/renderer/render_thread.h"
+#include "content/public/renderer/render_view.h"
+#include "content/public/renderer/renderer_ppapi_host.h"
+#include "ppapi/host/dispatch_host_message.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "third_party/WebKit/public/web/WebDocument.h"
+#include "third_party/WebKit/public/web/WebElement.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
+#include "third_party/WebKit/public/web/WebPluginContainer.h"
+#include "third_party/WebKit/public/web/WebView.h"
+
+PepperPrintingRendererHost::PepperPrintingRendererHost(
+    content::RendererPpapiHost* host,
+    PP_Instance instance,
+    PP_Resource resource)
+    : ppapi::host::ResourceHost(host->GetPpapiHost(), instance, resource),
+      host_(host) {
+}
+
+PepperPrintingRendererHost::~PepperPrintingRendererHost() {
+}
+
+int32_t PepperPrintingRendererHost::OnResourceMessageReceived(
+    const IPC::Message& msg,
+    ppapi::host::HostMessageContext* context) {
+  PPAPI_BEGIN_MESSAGE_MAP(PepperPrintingRendererHost, msg)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL(
+        PpapiHostMsg_PrintHost_SetPrintPresetOptionsFromDocument,
+        OnHostMsgSetPrintPresetOptionsFromDocument)
+  PPAPI_END_MESSAGE_MAP()
+  return PP_ERROR_FAILED;
+}
+
+int32_t PepperPrintingRendererHost::OnHostMsgSetPrintPresetOptionsFromDocument(
+    ppapi::host::HostMessageContext* context,
+    PP_PrintPresetOptions_Dev& print_options) {
+#if defined(ENABLE_FULL_PRINTING)
+  content::PepperPluginInstance* instance =
+      host_->GetPluginInstance(pp_instance());
+  if (!instance)
+    return PP_ERROR_FAILED;
+
+  PrintHostMsg_SetOptionsFromDocument_Params params;
+  params.is_scaling_disabled = print_options.is_scaling_disabled;
+  params.copies = print_options.copies;
+
+  content::RenderView* render_view = instance->GetRenderView();
+  render_view->Send(new PrintHostMsg_SetOptionsFromDocument(
+      render_view->GetRoutingID(), params));
+  return PP_OK;
+#endif
+  return PP_ERROR_FAILED;
+}