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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 "chrome/renderer/pepper/pepper_flash_font_file_host.h"
#include "base/sys_byteorder.h"
#include "build/build_config.h"
#include "content/public/renderer/renderer_ppapi_host.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/host/dispatch_host_message.h"
#include "ppapi/host/host_message_context.h"
#include "ppapi/host/ppapi_host.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/serialized_structs.h"
#if defined(OS_LINUX) || defined(OS_OPENBSD)
#include "content/public/common/child_process_sandbox_support_linux.h"
#elif defined(OS_WIN)
#include "third_party/skia/include/ports/SkFontMgr.h"
#endif
PepperFlashFontFileHost::PepperFlashFontFileHost(
content::RendererPpapiHost* host,
PP_Instance instance,
PP_Resource resource,
const ppapi::proxy::SerializedFontDescription& description,
PP_PrivateFontCharset charset)
: ResourceHost(host->GetPpapiHost(), instance, resource) {
#if defined(OS_LINUX) || defined(OS_OPENBSD)
fd_.reset(content::MatchFontWithFallback(
description.face,
description.weight >= PP_BROWSERFONT_TRUSTED_WEIGHT_BOLD,
description.italic,
charset,
PP_BROWSERFONT_TRUSTED_FAMILY_DEFAULT));
#elif defined(OS_WIN)
int weight = description.weight;
if (weight == FW_DONTCARE)
weight = SkFontStyle::kNormal_Weight;
SkFontStyle style(weight, SkFontStyle::kNormal_Width,
description.italic ? SkFontStyle::kItalic_Slant
: SkFontStyle::kUpright_Slant);
skia::RefPtr<SkFontMgr> font_mgr = skia::AdoptRef(SkFontMgr::RefDefault());
typeface_ = skia::AdoptRef(
font_mgr->matchFamilyStyle(description.face.c_str(), style));
#endif // defined(OS_LINUX) || defined(OS_OPENBSD)
}
PepperFlashFontFileHost::~PepperFlashFontFileHost() {}
int32_t PepperFlashFontFileHost::OnResourceMessageReceived(
const IPC::Message& msg,
ppapi::host::HostMessageContext* context) {
PPAPI_BEGIN_MESSAGE_MAP(PepperFlashFontFileHost, msg)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_FlashFontFile_GetFontTable,
OnGetFontTable)
PPAPI_END_MESSAGE_MAP()
return PP_ERROR_FAILED;
}
bool PepperFlashFontFileHost::GetFontData(uint32_t table,
void* buffer,
size_t* length) {
bool result = false;
#if defined(OS_LINUX) || defined(OS_OPENBSD)
int fd = fd_.get();
if (fd != -1)
result = content::GetFontTable(fd, table, 0 /* offset */,
reinterpret_cast<uint8_t*>(buffer), length);
#elif defined(OS_WIN)
if (typeface_) {
table = base::ByteSwap(table);
if (buffer == NULL) {
*length = typeface_->getTableSize(table);
if (*length > 0)
result = true;
} else {
size_t new_length = typeface_->getTableData(table, 0, *length, buffer);
if (new_length == *length)
result = true;
}
}
#endif
return result;
}
int32_t PepperFlashFontFileHost::OnGetFontTable(
ppapi::host::HostMessageContext* context,
uint32_t table) {
std::string contents;
int32_t result = PP_ERROR_FAILED;
size_t length = 0;
if (GetFontData(table, NULL, &length)) {
contents.resize(length);
uint8_t* contents_ptr =
reinterpret_cast<uint8_t*>(const_cast<char*>(contents.c_str()));
if (GetFontData(table, contents_ptr, &length)) {
result = PP_OK;
} else {
contents.clear();
}
}
context->reply_msg = PpapiPluginMsg_FlashFontFile_GetFontTableReply(contents);
return result;
}
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