// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/child/dwrite_font_proxy/font_fallback_win.h"
#include <dwrite.h>
#include <shlobj.h>
#include <wrl.h>
#include <memory>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/test/task_environment.h"
#include "content/child/dwrite_font_proxy/dwrite_font_proxy_win.h"
#include "content/test/dwrite_font_fake_sender_win.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/win/text_analysis_source.h"
namespace mswr = Microsoft::WRL;
namespace content {
namespace {
class FontFallbackUnitTest : public testing::Test {
public:
FontFallbackUnitTest() {
DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
&factory_);
factory_->CreateNumberSubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD_NONE,
L"en-us", true /* ignoreUserOverride */,
&number_substitution_);
std::vector<wchar_t> font_path;
font_path.resize(MAX_PATH);
SHGetSpecialFolderPath(nullptr /* hwndOwner - reserved */, font_path.data(),
CSIDL_FONTS, FALSE /* fCreate*/);
base::FilePath segoe_path = base::FilePath(std::wstring(font_path.data()))
.Append(L"\\seguisym.ttf");
fake_collection_ = std::make_unique<FakeFontCollection>();
fake_collection_->AddFont(u"Segoe UI Symbol")
.AddFamilyName(u"en-us", u"Segoe UI Symbol")
.AddFilePath(segoe_path);
DWriteFontCollectionProxy::Create(&collection_, factory_.Get(),
fake_collection_->CreateRemote());
}
base::test::TaskEnvironment task_environment;
std::unique_ptr<FakeFontCollection> fake_collection_;
mswr::ComPtr<IDWriteFactory> factory_;
mswr::ComPtr<DWriteFontCollectionProxy> collection_;
mswr::ComPtr<IDWriteNumberSubstitution> number_substitution_;
};
TEST_F(FontFallbackUnitTest, MapCharacters) {
mswr::ComPtr<FontFallback> fallback;
FontFallback::Create(&fallback, collection_.Get());
mswr::ComPtr<IDWriteFont> font;
UINT32 mapped_length = 0;
float scale = 0.0;
mswr::ComPtr<IDWriteTextAnalysisSource> text;
gfx::win::TextAnalysisSource::Create(&text, L"hello", L"en-us",
number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
fallback->MapCharacters(text.Get(), 0, 5, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
EXPECT_EQ(1u, mapped_length); // The fake sender only maps one character
EXPECT_NE(nullptr, font.Get());
}
TEST_F(FontFallbackUnitTest, DuplicateCallsShouldNotRepeatIPC) {
mswr::ComPtr<FontFallback> fallback;
FontFallback::Create(&fallback, collection_.Get());
mswr::ComPtr<IDWriteFont> font;
UINT32 mapped_length = 0;
float scale = 0.0;
mswr::ComPtr<IDWriteTextAnalysisSource> text;
gfx::win::TextAnalysisSource::Create(&text, L"hello", L"en-us",
number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
fallback->MapCharacters(text.Get(), 0, 5, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
mapped_length = 0;
fallback->MapCharacters(text.Get(), 0, 5, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
EXPECT_EQ(3u, fake_collection_->MessageCount());
EXPECT_EQ(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(0));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(1));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(2));
EXPECT_EQ(5u, mapped_length);
}
TEST_F(FontFallbackUnitTest, DifferentFamilyShouldNotReuseCache) {
mswr::ComPtr<FontFallback> fallback;
FontFallback::Create(&fallback, collection_.Get());
mswr::ComPtr<IDWriteFont> font;
UINT32 mapped_length = 0;
float scale = 0.0;
mswr::ComPtr<IDWriteTextAnalysisSource> text;
gfx::win::TextAnalysisSource::Create(&text, L"hello", L"en-us",
number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
fallback->MapCharacters(text.Get(), 0, 5, nullptr, L"font1",
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
fallback->MapCharacters(text.Get(), 0, 5, nullptr, L"font2",
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
EXPECT_EQ(4u, fake_collection_->MessageCount());
EXPECT_EQ(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(0));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(1));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(2));
EXPECT_EQ(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(3));
}
TEST_F(FontFallbackUnitTest, CacheMissShouldRepeatIPC) {
mswr::ComPtr<FontFallback> fallback;
FontFallback::Create(&fallback, collection_.Get());
mswr::ComPtr<IDWriteFont> font;
UINT32 mapped_length = 0;
float scale = 0.0;
mswr::ComPtr<IDWriteTextAnalysisSource> text;
gfx::win::TextAnalysisSource::Create(&text, L"hello", L"en-us",
number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
mswr::ComPtr<IDWriteTextAnalysisSource> unmappable_text;
gfx::win::TextAnalysisSource::Create(&unmappable_text, L"\uffff", L"en-us",
number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
fallback->MapCharacters(text.Get(), 0, 5, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
fallback->MapCharacters(unmappable_text.Get(), 0, 1, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
EXPECT_EQ(4u, fake_collection_->MessageCount());
EXPECT_EQ(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(0));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(1));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(2));
EXPECT_EQ(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(3));
}
TEST_F(FontFallbackUnitTest, SurrogatePairCacheHit) {
mswr::ComPtr<FontFallback> fallback;
FontFallback::Create(&fallback, collection_.Get());
mswr::ComPtr<IDWriteFont> font;
UINT32 mapped_length = 0;
float scale = 0.0;
mswr::ComPtr<IDWriteTextAnalysisSource> text;
gfx::win::TextAnalysisSource::Create(&text, L"hello", L"en-us",
number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
mswr::ComPtr<IDWriteTextAnalysisSource> surrogate_pair_text;
gfx::win::TextAnalysisSource::Create(&surrogate_pair_text, L"\U0001d300",
L"en-us", number_substitution_.Get(),
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT);
fallback->MapCharacters(text.Get(), 0, 5, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
fallback->MapCharacters(surrogate_pair_text.Get(), 0, 2, nullptr, nullptr,
DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL, &mapped_length, &font,
&scale);
EXPECT_EQ(3u, fake_collection_->MessageCount());
EXPECT_EQ(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(0));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(1));
EXPECT_NE(FakeFontCollection::MessageType::kMapCharacters,
fake_collection_->GetMessageType(2));
EXPECT_EQ(2u, mapped_length);
}
} // namespace
} // namespace content
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