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// 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 "printing/print_destination_interface.h"
#include "base/safe_numerics.h"
#include "base/win/metro.h"
#include "win8/util/win8_util.h"
namespace printing {
class PrintDestinationWin : public PrintDestinationInterface {
public:
PrintDestinationWin()
: metro_set_print_page_count_(NULL),
metro_set_print_page_content_(NULL) {
HMODULE metro_module = base::win::GetMetroModule();
if (metro_module != NULL) {
metro_set_print_page_count_ =
reinterpret_cast<MetroSetPrintPageCount>(
::GetProcAddress(metro_module, "MetroSetPrintPageCount"));
metro_set_print_page_content_ =
reinterpret_cast<MetroSetPrintPageContent>(
::GetProcAddress(metro_module, "MetroSetPrintPageContent"));
}
}
virtual void SetPageCount(int page_count) {
if (metro_set_print_page_count_)
metro_set_print_page_count_(page_count);
}
virtual void SetPageContent(int page_number,
void* content,
size_t content_size) {
if (metro_set_print_page_content_)
metro_set_print_page_content_(page_number - 1, content,
base::checked_numeric_cast<UINT32>(content_size));
}
private:
typedef void (*MetroSetPrintPageCount)(INT);
typedef void (*MetroSetPrintPageContent)(INT, VOID*, UINT32);
MetroSetPrintPageCount metro_set_print_page_count_;
MetroSetPrintPageContent metro_set_print_page_content_;
};
PrintDestinationInterface* CreatePrintDestination() {
// We currently only support the Metro print destination.
if (win8::IsSingleWindowMetroMode())
return new PrintDestinationWin;
else
return NULL;
}
} // namespace printing
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