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// Copyright 2015 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 "components/font_service/font_service_app.h"
#include <utility>
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "mojo/platform_handle/platform_handle_functions.h"
#include "mojo/shell/public/cpp/connection.h"
static_assert(static_cast<uint32_t>(SkTypeface::kNormal) ==
static_cast<uint32_t>(font_service::TypefaceStyle::NORMAL),
"Skia and font service flags must match");
static_assert(static_cast<uint32_t>(SkTypeface::kBold) ==
static_cast<uint32_t>(font_service::TypefaceStyle::BOLD),
"Skia and font service flags must match");
static_assert(static_cast<uint32_t>(SkTypeface::kItalic) ==
static_cast<uint32_t>(font_service::TypefaceStyle::ITALIC),
"Skia and font service flags must match");
static_assert(
static_cast<uint32_t>(SkTypeface::kBoldItalic) ==
static_cast<uint32_t>(font_service::TypefaceStyle::BOLD_ITALIC),
"Skia and font service flags must match");
namespace {
mojo::ScopedHandle GetHandleForPath(const base::FilePath& path) {
if (path.empty())
return mojo::ScopedHandle();
mojo::ScopedHandle to_pass;
base::File file(path, base::File::FLAG_OPEN | base::File::FLAG_READ);
if (!file.IsValid()) {
LOG(WARNING) << "file not valid, path=" << path.value();
return mojo::ScopedHandle();
}
MojoHandle mojo_handle;
MojoResult create_result =
MojoCreatePlatformHandleWrapper(file.TakePlatformFile(), &mojo_handle);
if (create_result != MOJO_RESULT_OK) {
LOG(WARNING) << "unable to create wrapper, path=" << path.value()
<< "result=" << create_result;
return mojo::ScopedHandle();
}
return mojo::ScopedHandle(mojo::Handle(mojo_handle));
}
} // namespace
namespace font_service {
FontServiceApp::FontServiceApp() {}
FontServiceApp::~FontServiceApp() {}
void FontServiceApp::Initialize(mojo::Connector* connector,
const mojo::Identity& identity,
uint32_t id) {
tracing_.Initialize(connector, identity.name());
}
bool FontServiceApp::AcceptConnection(mojo::Connection* connection) {
connection->AddInterface(this);
return true;
}
void FontServiceApp::ShellConnectionLost() {
_exit(1);
}
void FontServiceApp::Create(mojo::Connection* connection,
mojo::InterfaceRequest<FontService> request) {
bindings_.AddBinding(this, std::move(request));
}
void FontServiceApp::MatchFamilyName(const mojo::String& family_name,
TypefaceStyle requested_style,
const MatchFamilyNameCallback& callback) {
SkFontConfigInterface::FontIdentity result_identity;
SkString result_family;
SkTypeface::Style result_style;
SkFontConfigInterface* fc =
SkFontConfigInterface::GetSingletonDirectInterface();
const bool r = fc->matchFamilyName(
family_name.data(), static_cast<SkTypeface::Style>(requested_style),
&result_identity, &result_family, &result_style);
if (!r) {
callback.Run(nullptr, "", TypefaceStyle::NORMAL);
return;
}
// Stash away the returned path, so we can give it an ID (index)
// which will later be given to us in a request to open the file.
int index = FindOrAddPath(result_identity.fString);
FontIdentityPtr identity(FontIdentity::New());
identity->id = static_cast<uint32_t>(index);
identity->ttc_index = result_identity.fTTCIndex;
identity->str_representation = result_identity.fString.c_str();
callback.Run(std::move(identity), result_family.c_str(),
static_cast<TypefaceStyle>(result_style));
}
void FontServiceApp::OpenStream(uint32_t id_number,
const OpenStreamCallback& callback) {
mojo::ScopedHandle handle;
if (id_number < static_cast<uint32_t>(paths_.size())) {
handle = GetHandleForPath(base::FilePath(paths_[id_number].c_str()));
}
callback.Run(std::move(handle));
}
int FontServiceApp::FindOrAddPath(const SkString& path) {
int count = paths_.size();
for (int i = 0; i < count; ++i) {
if (path == paths_[i])
return i;
}
paths_.emplace_back(path);
return count;
}
} // namespace font_service
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