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// Copyright 2010 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "pdf/pdf.h"
#include <stdint.h>
#include <utility>
#include "base/feature_list.h"
#include "build/build_config.h"
#include "pdf/pdf_engine.h"
#include "pdf/pdf_features.h"
#include "pdf/pdf_init.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size_f.h"
namespace chrome_pdf {
namespace {
absl::optional<bool> g_use_skia_renderer_enabled_by_policy;
class ScopedSdkInitializer {
public:
explicit ScopedSdkInitializer(bool enable_v8) {
if (!IsSDKInitializedViaPlugin()) {
InitializeSDK(
enable_v8,
g_use_skia_renderer_enabled_by_policy.value_or(
base::FeatureList::IsEnabled(features::kPdfUseSkiaRenderer)),
FontMappingMode::kNoMapping);
}
}
ScopedSdkInitializer(const ScopedSdkInitializer&) = delete;
ScopedSdkInitializer& operator=(const ScopedSdkInitializer&) = delete;
~ScopedSdkInitializer() {
if (!IsSDKInitializedViaPlugin())
ShutdownSDK();
}
};
} // namespace
void SetUseSkiaRendererPolicy(bool use_skia) {
g_use_skia_renderer_enabled_by_policy = use_skia;
}
#if BUILDFLAG(IS_CHROMEOS)
std::vector<uint8_t> CreateFlattenedPdf(
base::span<const uint8_t> input_buffer) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/false);
return PDFEngineExports::Get()->CreateFlattenedPdf(input_buffer);
}
#endif // BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(IS_WIN)
bool RenderPDFPageToDC(base::span<const uint8_t> pdf_buffer,
int page_index,
HDC dc,
int dpi_x,
int dpi_y,
int bounds_origin_x,
int bounds_origin_y,
int bounds_width,
int bounds_height,
bool fit_to_bounds,
bool stretch_to_bounds,
bool keep_aspect_ratio,
bool center_in_bounds,
bool autorotate,
bool use_color) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/true);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
PDFEngineExports::RenderingSettings settings(
gfx::Size(dpi_x, dpi_y),
gfx::Rect(bounds_origin_x, bounds_origin_y, bounds_width, bounds_height),
fit_to_bounds, stretch_to_bounds, keep_aspect_ratio, center_in_bounds,
autorotate, use_color, /*render_for_printing=*/true);
return engine_exports->RenderPDFPageToDC(pdf_buffer, page_index, settings,
dc);
}
void SetPDFUsePrintMode(int mode) {
PDFEngineExports::Get()->SetPDFUsePrintMode(mode);
}
#endif // BUILDFLAG(IS_WIN)
bool GetPDFDocInfo(base::span<const uint8_t> pdf_buffer,
int* page_count,
float* max_page_width) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/true);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
return engine_exports->GetPDFDocInfo(pdf_buffer, page_count, max_page_width);
}
absl::optional<bool> IsPDFDocTagged(base::span<const uint8_t> pdf_buffer) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/true);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
return engine_exports->IsPDFDocTagged(pdf_buffer);
}
base::Value GetPDFStructTreeForPage(base::span<const uint8_t> pdf_buffer,
int page_index) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/true);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
return engine_exports->GetPDFStructTreeForPage(pdf_buffer, page_index);
}
absl::optional<gfx::SizeF> GetPDFPageSizeByIndex(
base::span<const uint8_t> pdf_buffer,
int page_index) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/true);
chrome_pdf::PDFEngineExports* engine_exports =
chrome_pdf::PDFEngineExports::Get();
return engine_exports->GetPDFPageSizeByIndex(pdf_buffer, page_index);
}
bool RenderPDFPageToBitmap(base::span<const uint8_t> pdf_buffer,
int page_index,
void* bitmap_buffer,
const gfx::Size& bitmap_size,
const gfx::Size& dpi,
const RenderOptions& options) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/true);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
PDFEngineExports::RenderingSettings settings(
dpi, gfx::Rect(bitmap_size),
/*fit_to_bounds=*/true, options.stretch_to_bounds,
options.keep_aspect_ratio,
/*center_in_bounds=*/true, options.autorotate, options.use_color,
options.render_device_type == RenderDeviceType::kPrinter);
return engine_exports->RenderPDFPageToBitmap(pdf_buffer, page_index, settings,
bitmap_buffer);
}
std::vector<uint8_t> ConvertPdfPagesToNupPdf(
std::vector<base::span<const uint8_t>> input_buffers,
size_t pages_per_sheet,
const gfx::Size& page_size,
const gfx::Rect& printable_area) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/false);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
return engine_exports->ConvertPdfPagesToNupPdf(
std::move(input_buffers), pages_per_sheet, page_size, printable_area);
}
std::vector<uint8_t> ConvertPdfDocumentToNupPdf(
base::span<const uint8_t> input_buffer,
size_t pages_per_sheet,
const gfx::Size& page_size,
const gfx::Rect& printable_area) {
ScopedSdkInitializer scoped_sdk_initializer(/*enable_v8=*/false);
PDFEngineExports* engine_exports = PDFEngineExports::Get();
return engine_exports->ConvertPdfDocumentToNupPdf(
input_buffer, pages_per_sheet, page_size, printable_area);
}
} // namespace chrome_pdf
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