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// Copyright (c) 2010 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 "pdf/pdf.h"
#if defined(OS_WIN)
#include <windows.h>
#endif
#include "base/command_line.h"
#include "base/logging.h"
#include "gin/array_buffer.h"
#include "gin/public/isolate_holder.h"
#include "pdf/out_of_process_instance.h"
#include "ppapi/c/ppp.h"
#include "ppapi/cpp/private/internal_module.h"
#include "ppapi/cpp/private/pdf.h"
#include "v8/include/v8.h"
namespace chrome_pdf {
namespace {
bool g_sdk_initialized_via_pepper = false;
gin::IsolateHolder* g_isolate_holder = nullptr;
void TearDownV8() {
g_isolate_holder->isolate()->Exit();
delete g_isolate_holder;
g_isolate_holder = nullptr;
}
} // namespace
PDFModule::PDFModule() {
}
PDFModule::~PDFModule() {
if (g_sdk_initialized_via_pepper) {
TearDownV8();
chrome_pdf::ShutdownSDK();
g_sdk_initialized_via_pepper = false;
}
}
bool PDFModule::Init() {
return true;
}
pp::Instance* PDFModule::CreateInstance(PP_Instance instance) {
if (!g_sdk_initialized_via_pepper) {
v8::StartupData natives;
v8::StartupData snapshot;
pp::PDF::GetV8ExternalSnapshotData(pp::InstanceHandle(instance),
&natives.data, &natives.raw_size,
&snapshot.data, &snapshot.raw_size);
if (natives.data) {
v8::V8::SetNativesDataBlob(&natives);
v8::V8::SetSnapshotDataBlob(&snapshot);
}
gin::IsolateHolder::Initialize(gin::IsolateHolder::kNonStrictMode,
gin::ArrayBufferAllocator::SharedInstance());
g_isolate_holder =
new gin::IsolateHolder(gin::IsolateHolder::kSingleThread);
g_isolate_holder->isolate()->Enter();
if (!chrome_pdf::InitializeSDK()) {
TearDownV8();
return NULL;
}
g_sdk_initialized_via_pepper = true;
}
return new OutOfProcessInstance(instance);
}
// Implementation of Global PPP functions ---------------------------------
int32_t PPP_InitializeModule(PP_Module module_id,
PPB_GetInterface get_browser_interface) {
PDFModule* module = new PDFModule();
if (!module->InternalInit(module_id, get_browser_interface)) {
delete module;
return PP_ERROR_FAILED;
}
pp::InternalSetModuleSingleton(module);
return PP_OK;
}
void PPP_ShutdownModule() {
delete pp::Module::Get();
pp::InternalSetModuleSingleton(NULL);
}
const void* PPP_GetInterface(const char* interface_name) {
if (!pp::Module::Get())
return NULL;
return pp::Module::Get()->GetPluginInterface(interface_name);
}
#if defined(OS_WIN)
bool RenderPDFPageToDC(const void* pdf_buffer,
int buffer_size,
int page_number,
HDC dc,
int dpi,
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) {
if (!g_sdk_initialized_via_pepper) {
if (!chrome_pdf::InitializeSDK()) {
return false;
}
}
scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
chrome_pdf::PDFEngineExports::Create());
chrome_pdf::PDFEngineExports::RenderingSettings settings(
dpi, dpi, pp::Rect(bounds_origin_x, bounds_origin_y, bounds_width,
bounds_height),
fit_to_bounds, stretch_to_bounds, keep_aspect_ratio, center_in_bounds,
autorotate);
bool ret = engine_exports->RenderPDFPageToDC(pdf_buffer, buffer_size,
page_number, settings, dc);
if (!g_sdk_initialized_via_pepper) {
chrome_pdf::ShutdownSDK();
}
return ret;
}
#endif // OS_WIN
bool GetPDFDocInfo(const void* pdf_buffer,
int buffer_size, int* page_count,
double* max_page_width) {
if (!g_sdk_initialized_via_pepper) {
if (!chrome_pdf::InitializeSDK())
return false;
}
scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
chrome_pdf::PDFEngineExports::Create());
bool ret = engine_exports->GetPDFDocInfo(
pdf_buffer, buffer_size, page_count, max_page_width);
if (!g_sdk_initialized_via_pepper) {
chrome_pdf::ShutdownSDK();
}
return ret;
}
bool GetPDFPageSizeByIndex(const void* pdf_buffer,
int pdf_buffer_size, int page_number,
double* width, double* height) {
if (!g_sdk_initialized_via_pepper) {
if (!chrome_pdf::InitializeSDK())
return false;
}
scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
chrome_pdf::PDFEngineExports::Create());
bool ret = engine_exports->GetPDFPageSizeByIndex(
pdf_buffer, pdf_buffer_size, page_number, width, height);
if (!g_sdk_initialized_via_pepper)
chrome_pdf::ShutdownSDK();
return ret;
}
bool RenderPDFPageToBitmap(const void* pdf_buffer,
int pdf_buffer_size,
int page_number,
void* bitmap_buffer,
int bitmap_width,
int bitmap_height,
int dpi,
bool autorotate) {
if (!g_sdk_initialized_via_pepper) {
if (!chrome_pdf::InitializeSDK())
return false;
}
scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
chrome_pdf::PDFEngineExports::Create());
chrome_pdf::PDFEngineExports::RenderingSettings settings(
dpi, dpi, pp::Rect(bitmap_width, bitmap_height), true, false, true, true,
autorotate);
bool ret = engine_exports->RenderPDFPageToBitmap(
pdf_buffer, pdf_buffer_size, page_number, settings, bitmap_buffer);
if (!g_sdk_initialized_via_pepper) {
chrome_pdf::ShutdownSDK();
}
return ret;
}
} // namespace chrome_pdf
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