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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/printing/test/mock_printer.h"
#include <algorithm>
#include <string>
#include <utility>
#include "base/files/file_util.h"
#include "base/memory/shared_memory_mapping.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "ipc/ipc_message_utils.h"
#include "printing/metafile_skia.h"
#include "printing/mojom/print.mojom.h"
#include "printing/print_settings.h"
#include "printing/units.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/size_conversions.h"
#if defined(MOCK_PRINTER_SUPPORTS_PAGE_IMAGES)
#include "pdf/pdf.h"
#endif
namespace printing {
MockPrinterPage::MockPrinterPage(const Image& image) : image_(image) {}
MockPrinterPage::~MockPrinterPage() = default;
MockPrinter::MockPrinter() {
params_.dpi = gfx::Size(kPointsPerInch, kPointsPerInch);
const double dpi = kPointsPerInch;
params_.page_size.SetSize(static_cast<int>(8.5 * dpi),
static_cast<int>(11.0 * dpi));
params_.content_size.SetSize(static_cast<int>((7.5 * dpi)),
static_cast<int>((10.0 * dpi)));
params_.margin_left = params_.margin_top = static_cast<int>(0.5 * dpi);
params_.printable_area.SetRect(
static_cast<int>(0.25 * dpi), static_cast<int>(0.25 * dpi),
static_cast<int>(8 * dpi), static_cast<int>(10.5 * dpi));
params_.prefer_css_page_size = true;
params_.print_scaling_option = mojom::PrintScalingOption::kSourceSize;
// Used for displaying headers and footers.
params_.title = u"title";
params_.url = u"url";
// Used only in the preview sequence.
params_.is_first_request = true;
}
MockPrinter::~MockPrinter() = default;
void MockPrinter::Reset() {
Finish();
pages_.clear();
page_count_ = 0;
}
mojom::PrintParamsPtr MockPrinter::GetDefaultPrintSettings() {
// Verify this printer is not processing a job.
// Sorry, this mock printer is very fragile.
EXPECT_FALSE(document_cookie_set_);
// Assign a unit document cookie and set the print settings.
CreateDocumentCookie();
return params_.Clone();
}
void MockPrinter::ScriptedPrint(int cookie,
uint32_t expected_pages_count,
bool has_selection,
mojom::PrintPagesParams* settings) {
// Verify the input parameters.
EXPECT_EQ(params_.document_cookie, cookie);
settings->pages.clear();
*settings->params = params_;
printer_status_ = PRINTER_PRINTING;
}
void MockPrinter::SetPrintedPagesCount(int cookie, uint32_t number_pages) {
// Verify the input parameter and update the printer status so that the
// RenderViewTest class can verify the this function finishes without errors.
EXPECT_EQ(params_.document_cookie, cookie);
EXPECT_EQ(PRINTER_PRINTING, printer_status_);
EXPECT_EQ(0, page_count_);
page_count_ = number_pages;
}
void MockPrinter::OnDocumentPrinted(mojom::DidPrintDocumentParamsPtr params) {
// Verify the input parameter and update the printer status so that the
// RenderViewTest class can verify the this function finishes without errors.
EXPECT_EQ(PRINTER_PRINTING, printer_status_);
EXPECT_EQ(params_.document_cookie, params->document_cookie);
EXPECT_TRUE(pages_.empty());
#if defined(MOCK_PRINTER_SUPPORTS_PAGE_IMAGES)
ASSERT_TRUE(params->content->metafile_data_region.IsValid());
GeneratePageImages(params->content->metafile_data_region.Map());
#endif // MOCK_PRINTER_SUPPORTS_PAGE_IMAGES
Finish();
}
int MockPrinter::GetPageCount() const {
if (printer_status_ != PRINTER_READY)
return -1;
return page_count_;
}
#if defined(MOCK_PRINTER_SUPPORTS_PAGE_IMAGES)
void MockPrinter::GeneratePageImages(
const base::ReadOnlySharedMemoryMapping& mapping) {
if (!should_generate_page_images_) {
return;
}
ASSERT_TRUE(mapping.IsValid());
EXPECT_GT(mapping.size(), 0U);
base::span<const uint8_t> pdf_buffer =
mapping.GetMemoryAsSpan<const uint8_t>();
int page_count;
bool success = chrome_pdf::GetPDFDocInfo(pdf_buffer, &page_count, nullptr);
ASSERT_TRUE(success);
for (int page_index = 0; page_index < page_count; page_index++) {
std::optional<gfx::SizeF> page_size =
chrome_pdf::GetPDFPageSizeByIndex(pdf_buffer, page_index);
ASSERT_TRUE(page_size);
gfx::Size size = gfx::ToCeiledSize(*page_size);
ASSERT_GT(size.width(), 0);
ASSERT_GT(size.height(), 0);
int line_stride = size.width() * sizeof(uint32_t);
std::vector<unsigned char> pixel_buffer;
pixel_buffer.resize(line_stride * size.height());
gfx::Size dpi(72, 72);
chrome_pdf::RenderOptions options = {
/* stretch_to_bounds=*/false,
/* keep_aspect_ratio=*/false,
/* autorotate=*/false,
/* use_color=*/true, chrome_pdf::RenderDeviceType::kDisplay};
success = chrome_pdf::RenderPDFPageToBitmap(
pdf_buffer, page_index, pixel_buffer.data(), size, dpi, options);
ASSERT_TRUE(success);
Image image(size, line_stride, std::move(pixel_buffer));
ASSERT_FALSE(image.size().IsEmpty());
pages_.push_back(base::MakeRefCounted<MockPrinterPage>(image));
}
}
const MockPrinterPage* MockPrinter::GetPrinterPage(unsigned int pageno) const {
EXPECT_TRUE(should_generate_page_images_);
if (pageno >= pages_.size())
return nullptr;
return pages_[pageno].get();
}
int MockPrinter::GetWidth(unsigned int page) const {
EXPECT_TRUE(should_generate_page_images_);
if (printer_status_ != PRINTER_READY || page >= pages_.size())
return -1;
return pages_[page]->width();
}
int MockPrinter::GetHeight(unsigned int page) const {
EXPECT_TRUE(should_generate_page_images_);
if (printer_status_ != PRINTER_READY || page >= pages_.size())
return -1;
return pages_[page]->height();
}
#endif // MOCK_PRINTER_SUPPORTS_PAGE_IMAGES
void MockPrinter::CreateDocumentCookie() {
EXPECT_FALSE(document_cookie_set_);
document_cookie_set_ = true;
params_.document_cookie = use_invalid_settings_
? PrintSettings::NewInvalidCookie()
: PrintSettings::NewCookie();
}
void MockPrinter::Finish() {
printer_status_ = PRINTER_READY;
document_cookie_set_ = false;
}
} // namespace printing
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