// 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 "ui/gfx/render_text.h" #include #include #include #include #include #include "base/format_macros.h" #include "base/i18n/break_iterator.h" #include "base/macros.h" #include "base/memory/ptr_util.h" #include "base/run_loop.h" #include "base/strings/string_split.h" #include "base/strings/string_util.h" #include "base/strings/stringprintf.h" #include "base/strings/utf_string_conversions.h" #include "build/build_config.h" #include "testing/gtest/include/gtest/gtest.h" #include "third_party/skia/include/core/SkRefCnt.h" #include "third_party/skia/include/core/SkSurface.h" #include "third_party/skia/include/core/SkTypeface.h" #include "ui/gfx/break_list.h" #include "ui/gfx/canvas.h" #include "ui/gfx/color_utils.h" #include "ui/gfx/decorated_text.h" #include "ui/gfx/font.h" #include "ui/gfx/font_names_testing.h" #include "ui/gfx/geometry/point.h" #include "ui/gfx/geometry/point_f.h" #include "ui/gfx/range/range.h" #include "ui/gfx/range/range_f.h" #include "ui/gfx/render_text_harfbuzz.h" #include "ui/gfx/text_utils.h" #if defined(OS_WIN) #include "base/win/windows_version.h" #include "ui/gfx/platform_font_win.h" #endif #if defined(OS_MACOSX) #include #include "ui/gfx/render_text_mac.h" #endif using base::ASCIIToUTF16; using base::UTF8ToUTF16; using base::WideToUTF16; using base::WideToUTF8; namespace gfx { namespace test { class RenderTextTestApi { public: RenderTextTestApi(RenderText* render_text) : render_text_(render_text) {} static SkPaint& GetRendererPaint(internal::SkiaTextRenderer* renderer) { return renderer->paint_; } // Callers should ensure that the associated RenderText object is a // RenderTextHarfBuzz instance. internal::TextRunList* GetHarfBuzzRunList() { RenderTextHarfBuzz* render_text = static_cast(render_text_); return render_text->GetRunList(); } void DrawVisualText(internal::SkiaTextRenderer* renderer) { render_text_->EnsureLayout(); render_text_->DrawVisualText(renderer); } const BreakList& colors() const { return render_text_->colors(); } const BreakList& baselines() const { return render_text_->baselines(); } const BreakList& weights() const { return render_text_->weights(); } const std::vector>& styles() const { return render_text_->styles(); } const std::vector& lines() const { return render_text_->lines(); } SelectionModel EdgeSelectionModel(VisualCursorDirection direction) { return render_text_->EdgeSelectionModel(direction); } size_t TextIndexToDisplayIndex(size_t index) { return render_text_->TextIndexToDisplayIndex(index); } size_t DisplayIndexToTextIndex(size_t index) { return render_text_->DisplayIndexToTextIndex(index); } void EnsureLayout() { render_text_->EnsureLayout(); } Vector2d GetAlignmentOffset(size_t line_number) { return render_text_->GetAlignmentOffset(line_number); } private: RenderText* render_text_; DISALLOW_COPY_AND_ASSIGN(RenderTextTestApi); }; } // namespace test namespace { // An enum specifying the different RenderText implementations to be tested. enum RenderTextBackend { RENDER_TEXT_HARFBUZZ, RENDER_TEXT_MAC, }; // Parameterised test name generator for tests depending on RenderTextBackend. struct PrintRenderTextBackend { template std::string operator()(const testing::TestParamInfo& info) const { switch (info.param) { case RENDER_TEXT_HARFBUZZ: return "HarfBuzz"; case RENDER_TEXT_MAC: return "Mac"; } NOTREACHED(); return std::string(); } }; // Various weak, LTR, RTL, and Bidi string cases with three characters each. const wchar_t kWeak[] = L" . "; const wchar_t kLtr[] = L"abc"; const wchar_t kRtl[] = L"\x5d0\x5d1\x5d2"; const wchar_t kLtrRtl[] = L"a" L"\x5d0\x5d1"; const wchar_t kLtrRtlLtr[] = L"a" L"\x5d1" L"b"; const wchar_t kRtlLtr[] = L"\x5d0\x5d1" L"a"; const wchar_t kRtlLtrRtl[] = L"\x5d0" L"a" L"\x5d1"; // Bitmasks based on gfx::TextStyle. enum { ITALIC_MASK = 1 << ITALIC, STRIKE_MASK = 1 << STRIKE, DIAGONAL_STRIKE_MASK = 1 << DIAGONAL_STRIKE, UNDERLINE_MASK = 1 << UNDERLINE, }; // Checks whether |range| contains |index|. This is not the same as calling // range.Contains(Range(index)), which returns true if |index| == |range.end()|. bool IndexInRange(const Range& range, size_t index) { return index >= range.start() && index < range.end(); } base::string16 GetSelectedText(RenderText* render_text) { return render_text->text().substr(render_text->selection().GetMin(), render_text->selection().length()); } // A test utility function to set the application default text direction. void SetRTL(bool rtl) { // Override the current locale/direction. base::i18n::SetICUDefaultLocale(rtl ? "he" : "en"); EXPECT_EQ(rtl, base::i18n::IsRTL()); } // Execute MoveCursor on the given |render_text| instance for the given // arguments and verify the selected range matches |expected|. Also, clears the // expectations. void RunMoveCursorTestAndClearExpectations(RenderText* render_text, BreakType break_type, VisualCursorDirection direction, SelectionBehavior selection_behavior, std::vector* expected) { for (size_t i = 0; i < expected->size(); ++i) { SCOPED_TRACE(base::StringPrintf( "BreakType-%d VisualCursorDirection-%d SelectionBehavior-%d Case-%d.", break_type, direction, selection_behavior, static_cast(i))); render_text->MoveCursor(break_type, direction, selection_behavior); EXPECT_EQ(expected->at(i), render_text->selection()); } expected->clear(); } // Ensure cursor movement in the specified |direction| yields |expected| values. void RunMoveCursorLeftRightTest(RenderText* render_text, const std::vector& expected, VisualCursorDirection direction) { for (size_t i = 0; i < expected.size(); ++i) { SCOPED_TRACE(base::StringPrintf("Going %s; expected value index %d.", direction == CURSOR_LEFT ? "left" : "right", static_cast(i))); EXPECT_EQ(expected[i], render_text->selection_model()); render_text->MoveCursor(CHARACTER_BREAK, direction, SELECTION_NONE); } // Check that cursoring is clamped at the line edge. EXPECT_EQ(expected.back(), render_text->selection_model()); // Check that it is the line edge. render_text->MoveCursor(LINE_BREAK, direction, SELECTION_NONE); EXPECT_EQ(expected.back(), render_text->selection_model()); } // Creates a RangedAttribute instance for a single character range at the // given |index| with the given |weight| and |style_mask|. |index| is the // index of the character in the DecoratedText instance and |font_index| is // used to retrieve the font used from |font_spans|. DecoratedText::RangedAttribute CreateRangedAttribute( const std::vector& font_spans, int index, int font_index, Font::Weight weight, int style_mask) { const auto iter = std::find_if(font_spans.begin(), font_spans.end(), [font_index](const RenderText::FontSpan& span) { return IndexInRange(span.second, font_index); }); DCHECK(font_spans.end() != iter); const Font& font = iter->first; int font_style = Font::NORMAL; if (style_mask & ITALIC_MASK) font_style |= Font::ITALIC; if (style_mask & UNDERLINE_MASK) font_style |= Font::UNDERLINE; const Font font_with_style = font.Derive(0, font_style, weight); DecoratedText::RangedAttribute attributes(Range(index, index + 1), font_with_style); attributes.strike = style_mask & STRIKE_MASK; attributes.diagonal_strike = style_mask & DIAGONAL_STRIKE_MASK; return attributes; } // Verifies the given DecoratedText instances are equal by comparing the // respective strings and attributes for each index. Note, corresponding // ranged attributes from |expected| and |actual| can't be compared since the // partition of |actual| into RangedAttributes will depend on the text runs // generated. void VerifyDecoratedWordsAreEqual(const DecoratedText& expected, const DecoratedText& actual) { ASSERT_EQ(expected.text, actual.text); // Compare attributes for each index. for (size_t i = 0; i < expected.text.length(); i++) { SCOPED_TRACE(base::StringPrintf("Comparing index[%" PRIuS "]", i)); auto find_attribute_func = [i](const DecoratedText::RangedAttribute& attr) { return IndexInRange(attr.range, i); }; const auto expected_attr = std::find_if(expected.attributes.begin(), expected.attributes.end(), find_attribute_func); const auto actual_attr = std::find_if(actual.attributes.begin(), actual.attributes.end(), find_attribute_func); ASSERT_NE(expected.attributes.end(), expected_attr); ASSERT_NE(actual.attributes.end(), actual_attr); EXPECT_EQ(expected_attr->strike, actual_attr->strike); EXPECT_EQ(expected_attr->diagonal_strike, actual_attr->diagonal_strike); EXPECT_EQ(expected_attr->font.GetFontName(), actual_attr->font.GetFontName()); EXPECT_EQ(expected_attr->font.GetFontSize(), actual_attr->font.GetFontSize()); EXPECT_EQ(expected_attr->font.GetWeight(), actual_attr->font.GetWeight()); EXPECT_EQ(expected_attr->font.GetStyle(), actual_attr->font.GetStyle()); } } // Helper method to return an obscured string of the given |length|, with the // |reveal_index| filled with |reveal_char|. base::string16 GetObscuredString(size_t length, size_t reveal_index, base::char16 reveal_char) { std::vector arr(length, RenderText::kPasswordReplacementChar); arr[reveal_index] = reveal_char; return base::string16(arr.begin(), arr.end()); } // Helper method to return an obscured string of the given |length|. base::string16 GetObscuredString(size_t length) { return base::string16(length, RenderText::kPasswordReplacementChar); } // The class which records the drawing operations so that the test case can // verify where exactly the glyphs are drawn. class TestSkiaTextRenderer : public internal::SkiaTextRenderer { public: struct TextLog { TextLog() : glyph_count(0u), color(SK_ColorTRANSPARENT) {} PointF origin; size_t glyph_count; SkColor color; }; struct DecorationLog { DecorationLog(int x, int y, int width, bool underline, bool strike, bool diagonal_strike) : x(x), y(y), width(width), underline(underline), strike(strike), diagonal_strike(diagonal_strike) {} int x; int y; int width; bool underline; bool strike; bool diagonal_strike; }; explicit TestSkiaTextRenderer(Canvas* canvas) : internal::SkiaTextRenderer(canvas) {} ~TestSkiaTextRenderer() override {} void GetTextLogAndReset(std::vector* text_log) { text_log_.swap(*text_log); text_log_.clear(); } void GetDecorationLogAndReset(std::vector* decoration_log) { decoration_log_.swap(*decoration_log); decoration_log_.clear(); } private: // internal::SkiaTextRenderer: void DrawPosText(const SkPoint* pos, const uint16_t* glyphs, size_t glyph_count) override { TextLog log_entry; log_entry.glyph_count = glyph_count; if (glyph_count > 0) { log_entry.origin = PointF(SkScalarToFloat(pos[0].x()), SkScalarToFloat(pos[0].y())); for (size_t i = 1U; i < glyph_count; ++i) { log_entry.origin.SetToMin( PointF(SkScalarToFloat(pos[i].x()), SkScalarToFloat(pos[i].y()))); } } log_entry.color = test::RenderTextTestApi::GetRendererPaint(this).getColor(); text_log_.push_back(log_entry); internal::SkiaTextRenderer::DrawPosText(pos, glyphs, glyph_count); } void DrawDecorations(int x, int y, int width, bool underline, bool strike, bool diagonal_strike) override { decoration_log_.push_back( DecorationLog(x, y, width, underline, strike, diagonal_strike)); internal::SkiaTextRenderer::DrawDecorations( x, y, width, underline, strike, diagonal_strike); } std::vector text_log_; std::vector decoration_log_; DISALLOW_COPY_AND_ASSIGN(TestSkiaTextRenderer); }; // Given a buffer to test against, this can be used to test various areas of the // rectangular buffer against a specific color value. class TestRectangleBuffer { public: TestRectangleBuffer(const wchar_t* string, const SkColor* buffer, uint32_t stride, uint32_t row_count) : string_(string), buffer_(buffer), stride_(stride), row_count_(row_count) {} // Test if any values in the rectangular area are anything other than |color|. void EnsureSolidRect(SkColor color, int left, int top, int width, int height) const { ASSERT_LT(top, row_count_) << string_; ASSERT_LE(top + height, row_count_) << string_; ASSERT_LT(left, stride_) << string_; ASSERT_LE(left + width, stride_) << string_ << ", left " << left << ", width " << width << ", stride_ " << stride_; for (int y = top; y < top + height; ++y) { for (int x = left; x < left + width; ++x) { SkColor buffer_color = buffer_[x + y * stride_]; EXPECT_EQ(color, buffer_color) << string_ << " at " << x << ", " << y; } } } private: const wchar_t* string_; const SkColor* buffer_; int stride_; int row_count_; DISALLOW_COPY_AND_ASSIGN(TestRectangleBuffer); }; } // namespace // Test fixture class used to run parameterized tests for all RenderText // implementations. class RenderTextTest : public testing::Test, public ::testing::WithParamInterface { public: RenderTextTest() : render_text_(CreateRenderTextInstance()), test_api_(new test::RenderTextTestApi(render_text_.get())), renderer_(canvas()) {} protected: std::unique_ptr CreateRenderTextInstance() const { switch (GetParam()) { case RENDER_TEXT_HARFBUZZ: return base::MakeUnique(); case RENDER_TEXT_MAC: #if defined(OS_MACOSX) return base::MakeUnique(); #else break; #endif } NOTREACHED(); return nullptr; } SkPaint& GetRendererPaint() { return test::RenderTextTestApi::GetRendererPaint(renderer()); } void DrawVisualText() { test_api_->DrawVisualText(renderer()); } internal::TextRunList* GetHarfBuzzRunList() { DCHECK_EQ(RENDER_TEXT_HARFBUZZ, GetParam()); return test_api_->GetHarfBuzzRunList(); } void ResetRenderTextInstance() { render_text_ = CreateRenderTextInstance(); test_api_.reset(new test::RenderTextTestApi(GetRenderText())); } RenderText* GetRenderText() { return render_text_.get(); }; RenderTextHarfBuzz* GetRenderTextHarfBuzz() { DCHECK_EQ(RENDER_TEXT_HARFBUZZ, GetParam()); return static_cast(GetRenderText()); } #if defined(OS_MACOSX) RenderTextMac* GetRenderTextMac() { DCHECK_EQ(RENDER_TEXT_MAC, GetParam()); return static_cast(GetRenderText()); } #endif Canvas* canvas() { return &canvas_; } TestSkiaTextRenderer* renderer() { return &renderer_; } test::RenderTextTestApi* test_api() { return test_api_.get(); }; private: std::unique_ptr render_text_; std::unique_ptr test_api_; Canvas canvas_; TestSkiaTextRenderer renderer_; #if defined(OS_WIN) // Needed to bypass DCHECK in GetFallbackFont. base::MessageLoopForUI message_loop_; #endif DISALLOW_COPY_AND_ASSIGN(RenderTextTest); }; // Test fixture class. Use for tests which are only to be run for // RenderTextHarfBuzz. class RenderTextHarfBuzzTest : public RenderTextTest { public: RenderTextHarfBuzzTest() {} // Overridden from testing::Test: void SetUp() override { RenderTextTest::SetUp(); DCHECK_EQ(RENDER_TEXT_HARFBUZZ, GetParam()); } protected: void SetGlyphWidth(float test_width) { GetRenderTextHarfBuzz()->set_glyph_width_for_test(test_width); } bool ShapeRunWithFont(const base::string16& text, const Font& font, const FontRenderParams& params, internal::TextRunHarfBuzz* run) { return GetRenderTextHarfBuzz()->ShapeRunWithFont(text, font, params, run); } private: DISALLOW_COPY_AND_ASSIGN(RenderTextHarfBuzzTest); }; #if defined(OS_MACOSX) // Test fixture class. Use for tests which are only to be run for RenderTextMac. class RenderTextMacTest : public RenderTextTest { public: RenderTextMacTest() {} // Overridden from testing::Test: void SetUp() override { RenderTextTest::SetUp(); DCHECK_EQ(RENDER_TEXT_MAC, GetParam()); } protected: base::ScopedCFTypeRef GetCoreTextLine() { return GetRenderTextMac()->line_; } private: DISALLOW_COPY_AND_ASSIGN(RenderTextMacTest); }; #endif TEST_P(RenderTextTest, DefaultStyles) { // Check the default styles applied to new instances and adjusted text. RenderText* render_text = GetRenderText(); EXPECT_TRUE(render_text->text().empty()); const wchar_t* const cases[] = { kWeak, kLtr, L"Hello", kRtl, L"", L"" }; for (size_t i = 0; i < arraysize(cases); ++i) { EXPECT_TRUE(test_api()->colors().EqualsValueForTesting(SK_ColorBLACK)); EXPECT_TRUE(test_api()->baselines().EqualsValueForTesting(NORMAL_BASELINE)); for (size_t style = 0; style < NUM_TEXT_STYLES; ++style) EXPECT_TRUE(test_api()->styles()[style].EqualsValueForTesting(false)); render_text->SetText(WideToUTF16(cases[i])); } } TEST_P(RenderTextTest, SetStyles) { // Ensure custom default styles persist across setting and clearing text. RenderText* render_text = GetRenderText(); const SkColor color = SK_ColorRED; render_text->SetColor(color); render_text->SetBaselineStyle(SUPERSCRIPT); render_text->SetWeight(Font::Weight::BOLD); render_text->SetStyle(UNDERLINE, false); const wchar_t* const cases[] = { kWeak, kLtr, L"Hello", kRtl, L"", L"" }; for (size_t i = 0; i < arraysize(cases); ++i) { EXPECT_TRUE(test_api()->colors().EqualsValueForTesting(color)); EXPECT_TRUE(test_api()->baselines().EqualsValueForTesting(SUPERSCRIPT)); EXPECT_TRUE( test_api()->weights().EqualsValueForTesting(Font::Weight::BOLD)); EXPECT_TRUE(test_api()->styles()[UNDERLINE].EqualsValueForTesting(false)); render_text->SetText(WideToUTF16(cases[i])); // Ensure custom default styles can be applied after text has been set. if (i == 1) render_text->SetStyle(STRIKE, true); if (i >= 1) EXPECT_TRUE(test_api()->styles()[STRIKE].EqualsValueForTesting(true)); } } TEST_P(RenderTextTest, ApplyStyles) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("012345678")); // Apply a ranged color and style and check the resulting breaks. render_text->ApplyColor(SK_ColorRED, Range(1, 4)); render_text->ApplyBaselineStyle(SUPERIOR, Range(2, 4)); render_text->ApplyWeight(Font::Weight::BOLD, Range(2, 5)); std::vector > expected_color; expected_color.push_back(std::pair(0, SK_ColorBLACK)); expected_color.push_back(std::pair(1, SK_ColorRED)); expected_color.push_back(std::pair(4, SK_ColorBLACK)); EXPECT_TRUE(test_api()->colors().EqualsForTesting(expected_color)); std::vector> expected_baseline_style; expected_baseline_style.push_back( std::pair(0, NORMAL_BASELINE)); expected_baseline_style.push_back( std::pair(2, SUPERIOR)); expected_baseline_style.push_back( std::pair(4, NORMAL_BASELINE)); EXPECT_TRUE( test_api()->baselines().EqualsForTesting(expected_baseline_style)); std::vector> expected_weight; expected_weight.push_back( std::pair(0, Font::Weight::NORMAL)); expected_weight.push_back( std::pair(2, Font::Weight::BOLD)); expected_weight.push_back( std::pair(5, Font::Weight::NORMAL)); EXPECT_TRUE(test_api()->weights().EqualsForTesting(expected_weight)); // Ensure that setting a value overrides the ranged values. render_text->SetColor(SK_ColorBLUE); EXPECT_TRUE(test_api()->colors().EqualsValueForTesting(SK_ColorBLUE)); render_text->SetBaselineStyle(SUBSCRIPT); EXPECT_TRUE(test_api()->baselines().EqualsValueForTesting(SUBSCRIPT)); render_text->SetWeight(Font::Weight::NORMAL); EXPECT_TRUE( test_api()->weights().EqualsValueForTesting(Font::Weight::NORMAL)); // Apply a value over the text end and check the resulting breaks (INT_MAX // should be used instead of the text length for the range end) const size_t text_length = render_text->text().length(); render_text->ApplyColor(SK_ColorRED, Range(0, text_length)); render_text->ApplyBaselineStyle(SUPERIOR, Range(0, text_length)); render_text->ApplyWeight(Font::Weight::BOLD, Range(2, text_length)); std::vector > expected_color_end; expected_color_end.push_back(std::pair(0, SK_ColorRED)); EXPECT_TRUE(test_api()->colors().EqualsForTesting(expected_color_end)); std::vector> expected_baseline_end; expected_baseline_end.push_back( std::pair(0, SUPERIOR)); EXPECT_TRUE(test_api()->baselines().EqualsForTesting(expected_baseline_end)); std::vector> expected_weight_end; expected_weight_end.push_back( std::pair(0, Font::Weight::NORMAL)); expected_weight_end.push_back( std::pair(2, Font::Weight::BOLD)); EXPECT_TRUE(test_api()->weights().EqualsForTesting(expected_weight_end)); // Ensure ranged values adjust to accommodate text length changes. render_text->ApplyStyle(ITALIC, true, Range(0, 2)); render_text->ApplyStyle(ITALIC, true, Range(3, 6)); render_text->ApplyStyle(ITALIC, true, Range(7, text_length)); std::vector > expected_italic; expected_italic.push_back(std::pair(0, true)); expected_italic.push_back(std::pair(2, false)); expected_italic.push_back(std::pair(3, true)); expected_italic.push_back(std::pair(6, false)); expected_italic.push_back(std::pair(7, true)); EXPECT_TRUE(test_api()->styles()[ITALIC].EqualsForTesting(expected_italic)); // Changing the text should clear any breaks except for the first one. render_text->SetText(ASCIIToUTF16("0123456")); expected_italic.resize(1); EXPECT_TRUE(test_api()->styles()[ITALIC].EqualsForTesting(expected_italic)); render_text->ApplyStyle(ITALIC, false, Range(2, 4)); render_text->SetText(ASCIIToUTF16("012345678")); EXPECT_TRUE(test_api()->styles()[ITALIC].EqualsForTesting(expected_italic)); render_text->ApplyStyle(ITALIC, false, Range(0, 1)); render_text->SetText(ASCIIToUTF16("0123456")); expected_italic.begin()->second = false; EXPECT_TRUE(test_api()->styles()[ITALIC].EqualsForTesting(expected_italic)); render_text->ApplyStyle(ITALIC, true, Range(2, 4)); render_text->SetText(ASCIIToUTF16("012345678")); EXPECT_TRUE(test_api()->styles()[ITALIC].EqualsForTesting(expected_italic)); // TODO(tmoniuszko): Enable when RenderTextMac::IsValidCursorIndex is // implemented. See http://crbug.com/131618. if (GetParam() != RENDER_TEXT_MAC) { // Styles shouldn't be changed mid-grapheme. render_text->SetText( WideToUTF16(L"0" L"\x0915\x093f" L"1" L"\x0915\x093f" L"2")); render_text->ApplyStyle(UNDERLINE, true, Range(2, 5)); std::vector> expected_underline; expected_underline.push_back(std::pair(0, false)); expected_underline.push_back(std::pair(1, true)); expected_underline.push_back(std::pair(6, false)); EXPECT_TRUE( test_api()->styles()[UNDERLINE].EqualsForTesting(expected_underline)); } } TEST_P(RenderTextTest, AppendTextKeepsStyles) { RenderText* render_text = GetRenderText(); // Setup basic functionality. render_text->SetText(ASCIIToUTF16("abc")); render_text->ApplyColor(SK_ColorRED, Range(0, 1)); render_text->ApplyBaselineStyle(SUPERSCRIPT, Range(1, 2)); render_text->ApplyStyle(UNDERLINE, true, Range(2, 3)); // Verify basic functionality. std::vector> expected_color; expected_color.push_back(std::pair(0, SK_ColorRED)); expected_color.push_back(std::pair(1, SK_ColorBLACK)); EXPECT_TRUE(test_api()->colors().EqualsForTesting(expected_color)); std::vector> expected_baseline; expected_baseline.push_back( std::pair(0, NORMAL_BASELINE)); expected_baseline.push_back(std::pair(1, SUPERSCRIPT)); expected_baseline.push_back( std::pair(2, NORMAL_BASELINE)); EXPECT_TRUE(test_api()->baselines().EqualsForTesting(expected_baseline)); std::vector> expected_style; expected_style.push_back(std::pair(0, false)); expected_style.push_back(std::pair(2, true)); EXPECT_TRUE(test_api()->styles()[UNDERLINE].EqualsForTesting(expected_style)); // Ensure AppendText maintains current text styles. render_text->AppendText(ASCIIToUTF16("def")); EXPECT_EQ(render_text->GetDisplayText(), ASCIIToUTF16("abcdef")); EXPECT_TRUE(test_api()->colors().EqualsForTesting(expected_color)); EXPECT_TRUE(test_api()->baselines().EqualsForTesting(expected_baseline)); EXPECT_TRUE(test_api()->styles()[UNDERLINE].EqualsForTesting(expected_style)); } void TestVisualCursorMotionInObscuredField( RenderText* render_text, const base::string16& text, SelectionBehavior selection_behavior) { const bool select = selection_behavior != SELECTION_NONE; ASSERT_TRUE(render_text->obscured()); render_text->SetText(text); int len = text.length(); render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, selection_behavior); EXPECT_EQ(SelectionModel(Range(select ? 0 : len, len), CURSOR_FORWARD), render_text->selection_model()); render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, selection_behavior); EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model()); for (int j = 1; j <= len; ++j) { render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, selection_behavior); EXPECT_EQ(SelectionModel(Range(select ? 0 : j, j), CURSOR_BACKWARD), render_text->selection_model()); } for (int j = len - 1; j >= 0; --j) { render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, selection_behavior); EXPECT_EQ(SelectionModel(Range(select ? 0 : j, j), CURSOR_FORWARD), render_text->selection_model()); } render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, selection_behavior); EXPECT_EQ(SelectionModel(Range(select ? 0 : len, len), CURSOR_FORWARD), render_text->selection_model()); render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, selection_behavior); EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model()); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, ObscuredText) { const base::string16 seuss = ASCIIToUTF16("hop on pop"); const base::string16 no_seuss = GetObscuredString(seuss.length()); RenderText* render_text = GetRenderText(); // GetDisplayText() returns a string filled with // RenderText::kPasswordReplacementChar when the obscured bit is set. render_text->SetText(seuss); render_text->SetObscured(true); EXPECT_EQ(seuss, render_text->text()); EXPECT_EQ(no_seuss, render_text->GetDisplayText()); render_text->SetObscured(false); EXPECT_EQ(seuss, render_text->text()); EXPECT_EQ(seuss, render_text->GetDisplayText()); render_text->SetObscured(true); // Surrogate pairs are counted as one code point. const base::char16 invalid_surrogates[] = {0xDC00, 0xD800, 0}; render_text->SetText(invalid_surrogates); EXPECT_EQ(GetObscuredString(2), render_text->GetDisplayText()); const base::char16 valid_surrogates[] = {0xD800, 0xDC00, 0}; render_text->SetText(valid_surrogates); EXPECT_EQ(GetObscuredString(1), render_text->GetDisplayText()); EXPECT_EQ(0U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(2U, render_text->cursor_position()); // Test index conversion and cursor validity with a valid surrogate pair. EXPECT_EQ(0U, test_api()->TextIndexToDisplayIndex(0U)); EXPECT_EQ(1U, test_api()->TextIndexToDisplayIndex(1U)); EXPECT_EQ(1U, test_api()->TextIndexToDisplayIndex(2U)); EXPECT_EQ(0U, test_api()->DisplayIndexToTextIndex(0U)); EXPECT_EQ(2U, test_api()->DisplayIndexToTextIndex(1U)); EXPECT_TRUE(render_text->IsValidCursorIndex(0U)); EXPECT_FALSE(render_text->IsValidCursorIndex(1U)); EXPECT_TRUE(render_text->IsValidCursorIndex(2U)); // FindCursorPosition() should not return positions between a surrogate pair. render_text->SetDisplayRect(Rect(0, 0, 20, 20)); EXPECT_EQ(render_text->FindCursorPosition(Point(0, 0)).caret_pos(), 0U); EXPECT_EQ(render_text->FindCursorPosition(Point(20, 0)).caret_pos(), 2U); for (int x = -1; x <= 20; ++x) { SelectionModel selection = render_text->FindCursorPosition(Point(x, 0)); EXPECT_TRUE(selection.caret_pos() == 0U || selection.caret_pos() == 2U); } // GetGlyphBounds() should yield the entire string bounds for text index 0. EXPECT_EQ(render_text->GetStringSize().width(), static_cast(render_text->GetGlyphBounds(0U).length())); // Cursoring is independent of underlying characters when text is obscured. const wchar_t* const texts[] = { kWeak, kLtr, kLtrRtl, kLtrRtlLtr, kRtl, kRtlLtr, kRtlLtrRtl, L"hop on pop", // Check LTR word boundaries. L"\x05d0\x05d1 \x05d0\x05d2 \x05d1\x05d2", // Check RTL word boundaries. }; for (size_t i = 0; i < arraysize(texts); ++i) { base::string16 text = WideToUTF16(texts[i]); TestVisualCursorMotionInObscuredField(render_text, text, SELECTION_NONE); TestVisualCursorMotionInObscuredField(render_text, text, SELECTION_RETAIN); } } TEST_P(RenderTextTest, RevealObscuredText) { const base::string16 seuss = ASCIIToUTF16("hop on pop"); const base::string16 no_seuss = GetObscuredString(seuss.length()); RenderText* render_text = GetRenderText(); render_text->SetText(seuss); render_text->SetObscured(true); EXPECT_EQ(seuss, render_text->text()); EXPECT_EQ(no_seuss, render_text->GetDisplayText()); // Valid reveal index and new revealed index clears previous one. render_text->RenderText::SetObscuredRevealIndex(0); EXPECT_EQ(GetObscuredString(seuss.length(), 0, 'h'), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(1); EXPECT_EQ(GetObscuredString(seuss.length(), 1, 'o'), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(2); EXPECT_EQ(GetObscuredString(seuss.length(), 2, 'p'), render_text->GetDisplayText()); // Invalid reveal index. render_text->RenderText::SetObscuredRevealIndex(-1); EXPECT_EQ(no_seuss, render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(seuss.length() + 1); EXPECT_EQ(no_seuss, render_text->GetDisplayText()); // SetObscured clears the revealed index. render_text->RenderText::SetObscuredRevealIndex(0); EXPECT_EQ(GetObscuredString(seuss.length(), 0, 'h'), render_text->GetDisplayText()); render_text->SetObscured(false); EXPECT_EQ(seuss, render_text->GetDisplayText()); render_text->SetObscured(true); EXPECT_EQ(no_seuss, render_text->GetDisplayText()); // SetText clears the revealed index. render_text->SetText(ASCIIToUTF16("new")); EXPECT_EQ(GetObscuredString(3), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(2); EXPECT_EQ(GetObscuredString(3, 2, 'w'), render_text->GetDisplayText()); render_text->SetText(ASCIIToUTF16("new longer")); EXPECT_EQ(GetObscuredString(10), render_text->GetDisplayText()); // Text with invalid surrogates. const base::char16 invalid_surrogates[] = {0xDC00, 0xD800, 'h', 'o', 'p', 0}; render_text->SetText(invalid_surrogates); EXPECT_EQ(GetObscuredString(5), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(0); EXPECT_EQ(GetObscuredString(5, 0, 0xDC00), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(1); EXPECT_EQ(GetObscuredString(5, 1, 0xD800), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(2); EXPECT_EQ(GetObscuredString(5, 2, 'h'), render_text->GetDisplayText()); // Text with valid surrogates before and after the reveal index. const base::char16 valid_surrogates[] = {0xD800, 0xDC00, 'h', 'o', 'p', 0xD800, 0xDC00, 0}; render_text->SetText(valid_surrogates); EXPECT_EQ(GetObscuredString(5), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(0); const base::char16 valid_expect_0_and_1[] = { 0xD800, 0xDC00, RenderText::kPasswordReplacementChar, RenderText::kPasswordReplacementChar, RenderText::kPasswordReplacementChar, RenderText::kPasswordReplacementChar, 0}; EXPECT_EQ(valid_expect_0_and_1, render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(1); EXPECT_EQ(valid_expect_0_and_1, render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(2); EXPECT_EQ(GetObscuredString(5, 1, 'h'), render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(5); const base::char16 valid_expect_5_and_6[] = { RenderText::kPasswordReplacementChar, RenderText::kPasswordReplacementChar, RenderText::kPasswordReplacementChar, RenderText::kPasswordReplacementChar, 0xD800, 0xDC00, 0}; EXPECT_EQ(valid_expect_5_and_6, render_text->GetDisplayText()); render_text->RenderText::SetObscuredRevealIndex(6); EXPECT_EQ(valid_expect_5_and_6, render_text->GetDisplayText()); } TEST_P(RenderTextTest, ObscuredEmoji) { // Ensures text itemization doesn't crash on obscured multi-char glyphs. RenderText* render_text = GetRenderText(); render_text->SetObscured(true); // Test the "Grinning face with smiling eyes" character followed by 'y'. render_text->SetText(UTF8ToUTF16("\xF0\x9F\x98\x81y")); render_text->Draw(canvas()); // Test two "Camera" characters in a row. render_text->SetText(UTF8ToUTF16("\xF0\x9F\x93\xB7\xF0\x9F\x93\xB7")); render_text->Draw(canvas()); } // TODO(PORT): Fails for RenderTextMac. // Crashes on Mac with RenderTextHarfBuzz. See http://crbug.com/640068. #if !defined(OS_MACOSX) TEST_P(RenderTextTest, ElidedText) { // TODO(skanuj) : Add more test cases for following // - RenderText styles. // - Cross interaction of truncate, elide and obscure. // - ElideText tests from text_elider.cc. struct { const wchar_t* text; const wchar_t* display_text; const bool elision_expected; } cases[] = { // Strings shorter than the elision width should be laid out in full. { L"", L"" , false }, { L"M", L"" , false }, { L" . ", L" . " , false }, { kWeak, kWeak , false }, { kLtr, kLtr , false }, { kLtrRtl, kLtrRtl , false }, { kLtrRtlLtr, kLtrRtlLtr, false }, { kRtl, kRtl , false }, { kRtlLtr, kRtlLtr , false }, { kRtlLtrRtl, kRtlLtrRtl, false }, // Strings as long as the elision width should be laid out in full. { L"012ab", L"012ab" , false }, // Long strings should be elided with an ellipsis appended at the end. { L"012abc", L"012a\x2026", true }, { L"012ab" L"\x5d0\x5d1", L"012a\x2026", true }, { L"012a" L"\x5d1" L"b", L"012a\x2026", true }, // No RLM marker added as digits (012) have weak directionality. { L"01" L"\x5d0\x5d1\x5d2", L"01\x5d0\x5d1\x2026", true }, // RLM marker added as "ab" have strong LTR directionality. { L"ab" L"\x5d0\x5d1\x5d2", L"ab\x5d0\x5d1\x2026\x200f", true }, // Test surrogate pairs. \xd834\xdd1e forms a single code point U+1D11E; // \xd834\xdd22 forms a second code point U+1D122. The first should be kept; // the second removed (no surrogate pair should be partially elided). { L"0123\xd834\xdd1e\xd834\xdd22", L"0123\xd834\xdd1e\x2026", true }, // Test combining character sequences. U+0915 U+093F forms a compound glyph; // U+0915 U+0942 forms a second compound glyph. The first should be kept; // the second removed (no combining sequence should be partially elided). { L"0123\x0915\x093f\x0915\x0942", L"0123\x0915\x093f\x2026", true }, // U+05E9 U+05BC U+05C1 U+05B8 forms a four-character compound glyph. Again, // it should be either fully elided, or not elided at all. If completely // elided, an LTR Mark (U+200E) should be added. { L"0\x05e9\x05bc\x05c1\x05b8", L"0\x05e9\x05bc\x05c1\x05b8", false }, { L"0\x05e9\x05bc\x05c1\x05b8", L"0\x2026\x200E" , true }, { L"01\x05e9\x05bc\x05c1\x05b8", L"01\x2026\x200E" , true }, { L"012\x05e9\x05bc\x05c1\x05b8", L"012\x2026\x200E" , true }, { L"012\xF0\x9D\x84\x9E", L"012\xF0\x2026" , true }, }; std::unique_ptr expected_render_text(CreateRenderTextInstance()); expected_render_text->SetFontList(FontList("serif, Sans serif, 12px")); expected_render_text->SetDisplayRect(Rect(0, 0, 9999, 100)); RenderText* render_text = GetRenderText(); render_text->SetFontList(FontList("serif, Sans serif, 12px")); render_text->SetElideBehavior(ELIDE_TAIL); for (size_t i = 0; i < arraysize(cases); i++) { SCOPED_TRACE(base::StringPrintf("Testing cases[%" PRIuS "] '%ls'", i, cases[i].text)); // Compute expected width expected_render_text->SetText(WideToUTF16(cases[i].display_text)); int expected_width = expected_render_text->GetContentWidth(); base::string16 input = WideToUTF16(cases[i].text); // Extend the input text to ensure that it is wider than the display_text, // and so it will get elided. if (cases[i].elision_expected) input.append(WideToUTF16(L" MMMMMMMMMMM")); render_text->SetText(input); render_text->SetDisplayRect(Rect(0, 0, expected_width, 100)); EXPECT_EQ(input, render_text->text()); EXPECT_EQ(WideToUTF16(cases[i].display_text), render_text->GetDisplayText()); expected_render_text->SetText(base::string16()); } } TEST_P(RenderTextTest, ElidedObscuredText) { std::unique_ptr expected_render_text(CreateRenderTextInstance()); expected_render_text->SetFontList(FontList("serif, Sans serif, 12px")); expected_render_text->SetDisplayRect(Rect(0, 0, 9999, 100)); expected_render_text->SetText(WideToUTF16(L"**\x2026")); RenderText* render_text = GetRenderText(); render_text->SetFontList(FontList("serif, Sans serif, 12px")); render_text->SetElideBehavior(ELIDE_TAIL); render_text->SetDisplayRect( Rect(0, 0, expected_render_text->GetContentWidth(), 100)); render_text->SetObscured(true); render_text->SetText(WideToUTF16(L"abcdef")); EXPECT_EQ(WideToUTF16(L"abcdef"), render_text->text()); EXPECT_EQ(WideToUTF16(L"**\x2026"), render_text->GetDisplayText()); } #endif // !defined(OS_MACOSX) // TODO(PORT): Fails for RenderTextMac. TEST_P(RenderTextHarfBuzzTest, MultilineElide) { RenderText* render_text = GetRenderText(); base::string16 input_text; // Aim for 3 lines of text. for (int i = 0; i < 20; ++i) input_text.append(ASCIIToUTF16("hello world ")); render_text->SetText(input_text); // Apply a style that tweaks the layout to make sure elision is calculated // with these styles. This can expose a behavior in layout where text is // slightly different width. This must be done after |SetText()|. render_text->ApplyWeight(Font::Weight::BOLD, Range(1, 20)); render_text->ApplyStyle(ITALIC, true, Range(1, 20)); render_text->ApplyStyle(DIAGONAL_STRIKE, true, Range(1, 20)); render_text->SetMultiline(true); render_text->SetElideBehavior(ELIDE_TAIL); render_text->SetMaxLines(3); const Size size = render_text->GetStringSize(); // Fit in 3 lines. (If we knew the width of a word, we could // anticipate word wrap better.) render_text->SetDisplayRect(Rect((size.width() + 96) / 3, 0)); // Trigger rendering. render_text->GetStringSize(); EXPECT_EQ(input_text, render_text->GetDisplayText()); const base::char16 kEllipsisUTF16[] = {0x2026, 0}; base::string16 actual_text; // Try widening the space gradually, one pixel at a time, trying // to trigger a failure in layout. There was an issue where, right at // the edge of a word getting truncated, the estimate would be wrong // and it would wrap instead. for (int i = (size.width() - 12) / 3; i < (size.width() + 30) / 3; ++i) { render_text->SetDisplayRect(Rect(i, 0)); // Trigger rendering. render_text->GetStringSize(); actual_text = render_text->GetDisplayText(); EXPECT_LT(actual_text.size(), input_text.size()); EXPECT_EQ(actual_text, input_text.substr(0, actual_text.size() - 1) + base::string16(kEllipsisUTF16)); EXPECT_EQ(3U, render_text->GetNumLines()); } // Now remove line restriction. render_text->SetMaxLines(0); render_text->GetStringSize(); EXPECT_EQ(input_text, render_text->GetDisplayText()); // And put it back. render_text->SetMaxLines(3); render_text->GetStringSize(); EXPECT_LT(actual_text.size(), input_text.size()); EXPECT_EQ(actual_text, input_text.substr(0, actual_text.size() - 1) + base::string16(kEllipsisUTF16)); } TEST_P(RenderTextTest, ElidedEmail) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("test@example.com")); const Size size = render_text->GetStringSize(); const base::string16 long_email = ASCIIToUTF16("longemailaddresstest@example.com"); render_text->SetText(long_email); render_text->SetElideBehavior(ELIDE_EMAIL); render_text->SetDisplayRect(Rect(size)); EXPECT_GE(size.width(), render_text->GetStringSize().width()); EXPECT_GT(long_email.size(), render_text->GetDisplayText().size()); } TEST_P(RenderTextTest, TruncatedText) { struct { const wchar_t* text; const wchar_t* display_text; } cases[] = { // Strings shorter than the truncation length should be laid out in full. { L"", L"" }, { kWeak, kWeak }, { kLtr, kLtr }, { kLtrRtl, kLtrRtl }, { kLtrRtlLtr, kLtrRtlLtr }, { kRtl, kRtl }, { kRtlLtr, kRtlLtr }, { kRtlLtrRtl, kRtlLtrRtl }, // Strings as long as the truncation length should be laid out in full. { L"01234", L"01234" }, // Long strings should be truncated with an ellipsis appended at the end. { L"012345", L"0123\x2026" }, { L"012" L" . ", L"012 \x2026" }, { L"012" L"abc", L"012a\x2026" }, { L"012" L"a" L"\x5d0\x5d1", L"012a\x2026" }, { L"012" L"a" L"\x5d1" L"b", L"012a\x2026" }, { L"012" L"\x5d0\x5d1\x5d2", L"012\x5d0\x2026" }, { L"012" L"\x5d0\x5d1" L"a", L"012\x5d0\x2026" }, { L"012" L"\x5d0" L"a" L"\x5d1", L"012\x5d0\x2026" }, // Surrogate pairs should be truncated reasonably enough. { L"0123\x0915\x093f", L"0123\x2026" }, { L"0\x05e9\x05bc\x05c1\x05b8", L"0\x05e9\x05bc\x05c1\x05b8" }, { L"01\x05e9\x05bc\x05c1\x05b8", L"01\x05e9\x05bc\x2026" }, { L"012\x05e9\x05bc\x05c1\x05b8", L"012\x05e9\x2026" }, { L"0123\x05e9\x05bc\x05c1\x05b8", L"0123\x2026" }, { L"01234\x05e9\x05bc\x05c1\x05b8", L"0123\x2026" }, { L"012\xF0\x9D\x84\x9E", L"012\xF0\x2026" }, }; RenderText* render_text = GetRenderText(); render_text->set_truncate_length(5); for (size_t i = 0; i < arraysize(cases); i++) { render_text->SetText(WideToUTF16(cases[i].text)); EXPECT_EQ(WideToUTF16(cases[i].text), render_text->text()); EXPECT_EQ(WideToUTF16(cases[i].display_text), render_text->GetDisplayText()) << "For case " << i << ": " << cases[i].text; } } TEST_P(RenderTextTest, TruncatedObscuredText) { RenderText* render_text = GetRenderText(); render_text->set_truncate_length(3); render_text->SetObscured(true); render_text->SetText(WideToUTF16(L"abcdef")); EXPECT_EQ(WideToUTF16(L"abcdef"), render_text->text()); EXPECT_EQ(GetObscuredString(3, 2, 0x2026), render_text->GetDisplayText()); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, TruncatedCursorMovementLTR) { RenderText* render_text = GetRenderText(); render_text->set_truncate_length(2); render_text->SetText(WideToUTF16(L"abcd")); EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model()); render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(SelectionModel(4, CURSOR_FORWARD), render_text->selection_model()); render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model()); std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); // The cursor hops over the ellipsis and elided text to the line end. expected.push_back(SelectionModel(4, CURSOR_BACKWARD)); expected.push_back(SelectionModel(4, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); expected.clear(); expected.push_back(SelectionModel(4, CURSOR_FORWARD)); // The cursor hops over the elided text to preceeding text. expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, TruncatedCursorMovementRTL) { RenderText* render_text = GetRenderText(); render_text->set_truncate_length(2); render_text->SetText(WideToUTF16(L"\x5d0\x5d1\x5d2\x5d3")); EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model()); render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(SelectionModel(4, CURSOR_FORWARD), render_text->selection_model()); render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model()); std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); // The cursor hops over the ellipsis and elided text to the line end. expected.push_back(SelectionModel(4, CURSOR_BACKWARD)); expected.push_back(SelectionModel(4, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); expected.clear(); expected.push_back(SelectionModel(4, CURSOR_FORWARD)); // The cursor hops over the elided text to preceeding text. expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursor_Character) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"123 456 789")); std::vector expected; // SELECTION_NONE. render_text->SelectRange(Range(6)); // Move right twice. expected.push_back(Range(7)); expected.push_back(Range(8)); RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE, &expected); // Move left twice. expected.push_back(Range(7)); expected.push_back(Range(6)); RunMoveCursorTestAndClearExpectations(render_text, CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE, &expected); // SELECTION_CARET. render_text->SelectRange(Range(6)); expected.push_back(Range(6, 7)); // Move right. RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_CARET, &expected); // Move left twice. expected.push_back(Range(6)); expected.push_back(Range(6, 5)); RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_LEFT, SELECTION_CARET, &expected); // SELECTION_RETAIN. render_text->SelectRange(Range(6)); // Move right. expected.push_back(Range(6, 7)); RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_RETAIN, &expected); // Move left twice. expected.push_back(Range(6)); expected.push_back(Range(6, 5)); RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_LEFT, SELECTION_RETAIN, &expected); // SELECTION_EXTEND. render_text->SelectRange(Range(6)); // Move right. expected.push_back(Range(6, 7)); RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_EXTEND, &expected); // Move left twice. expected.push_back(Range(7, 6)); expected.push_back(Range(7, 5)); RunMoveCursorTestAndClearExpectations( render_text, CHARACTER_BREAK, CURSOR_LEFT, SELECTION_EXTEND, &expected); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursor_Word) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"123 456 789")); std::vector expected; // SELECTION_NONE. render_text->SelectRange(Range(6)); // Move left twice. expected.push_back(Range(4)); expected.push_back(Range(0)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_NONE, &expected); // Move right twice. expected.push_back(Range(3)); expected.push_back(Range(7)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE, &expected); // SELECTION_CARET. render_text->SelectRange(Range(6)); // Move left. expected.push_back(Range(6, 4)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_CARET, &expected); // Move right twice. expected.push_back(Range(6)); expected.push_back(Range(6, 7)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_RIGHT, SELECTION_CARET, &expected); // Move left. expected.push_back(Range(6)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_CARET, &expected); // SELECTION_RETAIN. render_text->SelectRange(Range(6)); // Move left. expected.push_back(Range(6, 4)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_RETAIN, &expected); // Move right twice. expected.push_back(Range(6, 7)); expected.push_back(Range(6, 11)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_RIGHT, SELECTION_RETAIN, &expected); // Move left. expected.push_back(Range(6, 8)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_RETAIN, &expected); // SELECTION_EXTEND. render_text->SelectRange(Range(6)); // Move left. expected.push_back(Range(6, 4)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_EXTEND, &expected); // Move right twice. expected.push_back(Range(4, 7)); expected.push_back(Range(4, 11)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_RIGHT, SELECTION_EXTEND, &expected); // Move left. expected.push_back(Range(4, 8)); RunMoveCursorTestAndClearExpectations(render_text, WORD_BREAK, CURSOR_LEFT, SELECTION_EXTEND, &expected); } TEST_P(RenderTextTest, MoveCursor_Line) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"123 456 789")); std::vector expected; // SELECTION_NONE. render_text->SelectRange(Range(6)); // Move right twice. expected.push_back(Range(11)); expected.push_back(Range(11)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE, &expected); // Move left twice. expected.push_back(Range(0)); expected.push_back(Range(0)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_LEFT, SELECTION_NONE, &expected); // SELECTION_CARET. render_text->SelectRange(Range(6)); // Move right. expected.push_back(Range(6, 11)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_CARET, &expected); // Move left twice. expected.push_back(Range(6)); expected.push_back(Range(6, 0)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_LEFT, SELECTION_CARET, &expected); // Move right. expected.push_back(Range(6)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_CARET, &expected); // SELECTION_RETAIN. render_text->SelectRange(Range(6)); // Move right. expected.push_back(Range(6, 11)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_RETAIN, &expected); // Move left twice. expected.push_back(Range(6, 0)); expected.push_back(Range(6, 0)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_LEFT, SELECTION_RETAIN, &expected); // Move right. expected.push_back(Range(6, 11)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_RETAIN, &expected); // SELECTION_EXTEND. render_text->SelectRange(Range(6)); // Move right. expected.push_back(Range(6, 11)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_EXTEND, &expected); // Move left twice. expected.push_back(Range(11, 0)); expected.push_back(Range(11, 0)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_LEFT, SELECTION_EXTEND, &expected); // Move right. expected.push_back(Range(0, 11)); RunMoveCursorTestAndClearExpectations(render_text, LINE_BREAK, CURSOR_RIGHT, SELECTION_EXTEND, &expected); } TEST_P(RenderTextTest, GetDisplayTextDirection) { struct { const wchar_t* text; const base::i18n::TextDirection text_direction; } cases[] = { // Blank strings and those with no/weak directionality default to LTR. { L"", base::i18n::LEFT_TO_RIGHT }, { kWeak, base::i18n::LEFT_TO_RIGHT }, // Strings that begin with strong LTR characters. { kLtr, base::i18n::LEFT_TO_RIGHT }, { kLtrRtl, base::i18n::LEFT_TO_RIGHT }, { kLtrRtlLtr, base::i18n::LEFT_TO_RIGHT }, // Strings that begin with strong RTL characters. { kRtl, base::i18n::RIGHT_TO_LEFT }, { kRtlLtr, base::i18n::RIGHT_TO_LEFT }, { kRtlLtrRtl, base::i18n::RIGHT_TO_LEFT }, }; RenderText* render_text = GetRenderText(); const bool was_rtl = base::i18n::IsRTL(); for (size_t i = 0; i < 2; ++i) { // Toggle the application default text direction (to try each direction). SetRTL(!base::i18n::IsRTL()); const base::i18n::TextDirection ui_direction = base::i18n::IsRTL() ? base::i18n::RIGHT_TO_LEFT : base::i18n::LEFT_TO_RIGHT; // Ensure that directionality modes yield the correct text directions. for (size_t j = 0; j < arraysize(cases); j++) { render_text->SetText(WideToUTF16(cases[j].text)); render_text->SetDirectionalityMode(DIRECTIONALITY_FROM_TEXT); EXPECT_EQ(render_text->GetDisplayTextDirection(),cases[j].text_direction); render_text->SetDirectionalityMode(DIRECTIONALITY_FROM_UI); EXPECT_EQ(render_text->GetDisplayTextDirection(), ui_direction); render_text->SetDirectionalityMode(DIRECTIONALITY_FORCE_LTR); EXPECT_EQ(render_text->GetDisplayTextDirection(), base::i18n::LEFT_TO_RIGHT); render_text->SetDirectionalityMode(DIRECTIONALITY_FORCE_RTL); EXPECT_EQ(render_text->GetDisplayTextDirection(), base::i18n::RIGHT_TO_LEFT); } } EXPECT_EQ(was_rtl, base::i18n::IsRTL()); // Ensure that text changes update the direction for DIRECTIONALITY_FROM_TEXT. render_text->SetDirectionalityMode(DIRECTIONALITY_FROM_TEXT); render_text->SetText(WideToUTF16(kLtr)); EXPECT_EQ(render_text->GetDisplayTextDirection(), base::i18n::LEFT_TO_RIGHT); render_text->SetText(WideToUTF16(kRtl)); EXPECT_EQ(render_text->GetDisplayTextDirection(), base::i18n::RIGHT_TO_LEFT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightInLtr) { RenderText* render_text = GetRenderText(); // Pure LTR. render_text->SetText(ASCIIToUTF16("abc")); // |expected| saves the expected SelectionModel when moving cursor from left // to right. std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); expected.push_back(SelectionModel(2, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); expected.clear(); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); expected.push_back(SelectionModel(2, CURSOR_FORWARD)); expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightInLtrRtl) { RenderText* render_text = GetRenderText(); // LTR-RTL render_text->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2")); // The last one is the expected END position. std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); expected.push_back(SelectionModel(2, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_BACKWARD)); expected.push_back(SelectionModel(5, CURSOR_FORWARD)); expected.push_back(SelectionModel(4, CURSOR_FORWARD)); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); expected.push_back(SelectionModel(6, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); expected.clear(); expected.push_back(SelectionModel(6, CURSOR_FORWARD)); expected.push_back(SelectionModel(4, CURSOR_BACKWARD)); expected.push_back(SelectionModel(5, CURSOR_BACKWARD)); expected.push_back(SelectionModel(6, CURSOR_BACKWARD)); expected.push_back(SelectionModel(2, CURSOR_FORWARD)); expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightInLtrRtlLtr) { RenderText* render_text = GetRenderText(); // LTR-RTL-LTR. render_text->SetText(WideToUTF16(L"a" L"\x05d1" L"b")); std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(3, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); expected.clear(); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); expected.push_back(SelectionModel(2, CURSOR_FORWARD)); expected.push_back(SelectionModel(2, CURSOR_BACKWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightInRtl) { RenderText* render_text = GetRenderText(); // Pure RTL. render_text->SetText(WideToUTF16(L"\x05d0\x05d1\x05d2")); render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); expected.push_back(SelectionModel(2, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); expected.clear(); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); expected.push_back(SelectionModel(2, CURSOR_FORWARD)); expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightInRtlLtr) { RenderText* render_text = GetRenderText(); // RTL-LTR render_text->SetText(WideToUTF16(L"\x05d0\x05d1\x05d2" L"abc")); render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); expected.push_back(SelectionModel(2, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_BACKWARD)); expected.push_back(SelectionModel(5, CURSOR_FORWARD)); expected.push_back(SelectionModel(4, CURSOR_FORWARD)); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); expected.push_back(SelectionModel(6, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); expected.clear(); expected.push_back(SelectionModel(6, CURSOR_FORWARD)); expected.push_back(SelectionModel(4, CURSOR_BACKWARD)); expected.push_back(SelectionModel(5, CURSOR_BACKWARD)); expected.push_back(SelectionModel(6, CURSOR_BACKWARD)); expected.push_back(SelectionModel(2, CURSOR_FORWARD)); expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightInRtlLtrRtl) { RenderText* render_text = GetRenderText(); // RTL-LTR-RTL. render_text->SetText(WideToUTF16(L"\x05d0" L"a" L"\x05d1")); render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); std::vector expected; expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_BACKWARD)); expected.push_back(SelectionModel(1, CURSOR_FORWARD)); expected.push_back(SelectionModel(3, CURSOR_BACKWARD)); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_LEFT); expected.clear(); expected.push_back(SelectionModel(3, CURSOR_FORWARD)); expected.push_back(SelectionModel(2, CURSOR_FORWARD)); expected.push_back(SelectionModel(2, CURSOR_BACKWARD)); expected.push_back(SelectionModel(0, CURSOR_FORWARD)); expected.push_back(SelectionModel(0, CURSOR_BACKWARD)); RunMoveCursorLeftRightTest(render_text, expected, CURSOR_RIGHT); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRight_ComplexScript) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"\x0915\x093f\x0915\x094d\x0915")); EXPECT_EQ(0U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(2U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(4U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(5U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(5U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(4U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(2U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(0U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(0U, render_text->cursor_position()); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 // Crashes on Mac with RenderTextHarfBuzz. See http://crbug.com/640068. #if !defined(OS_MACOSX) TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRight_MeiryoUILigatures) { RenderText* render_text = GetRenderText(); // Meiryo UI uses single-glyph ligatures for 'ff' and 'ffi', but each letter // (code point) has unique bounds, so mid-glyph cursoring should be possible. render_text->SetFontList(FontList("Meiryo UI, 12px")); render_text->SetText(WideToUTF16(L"ff ffi")); EXPECT_EQ(0U, render_text->cursor_position()); for (size_t i = 0; i < render_text->text().length(); ++i) { render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(i + 1, render_text->cursor_position()); } EXPECT_EQ(6U, render_text->cursor_position()); } #endif // !defined(OS_MACOSX) // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, GraphemePositions) { // LTR 2-character grapheme, LTR abc, LTR 2-character grapheme. const base::string16 kText1 = WideToUTF16(L"\x0915\x093f" L"abc" L"\x0915\x093f"); // LTR ab, LTR 2-character grapheme, LTR cd. const base::string16 kText2 = WideToUTF16(L"ab" L"\x0915\x093f" L"cd"); // The below is 'MUSICAL SYMBOL G CLEF', which is represented in UTF-16 as // two characters forming the surrogate pair 0x0001D11E. const std::string kSurrogate = "\xF0\x9D\x84\x9E"; // LTR ab, UTF16 surrogate pair, LTR cd. const base::string16 kText3 = UTF8ToUTF16("ab" + kSurrogate + "cd"); struct { base::string16 text; size_t index; size_t expected_previous; size_t expected_next; } cases[] = { { base::string16(), 0, 0, 0 }, { base::string16(), 1, 0, 0 }, { base::string16(), 50, 0, 0 }, { kText1, 0, 0, 2 }, { kText1, 1, 0, 2 }, { kText1, 2, 0, 3 }, { kText1, 3, 2, 4 }, { kText1, 4, 3, 5 }, { kText1, 5, 4, 7 }, { kText1, 6, 5, 7 }, { kText1, 7, 5, 7 }, { kText1, 8, 7, 7 }, { kText1, 50, 7, 7 }, { kText2, 0, 0, 1 }, { kText2, 1, 0, 2 }, { kText2, 2, 1, 4 }, { kText2, 3, 2, 4 }, { kText2, 4, 2, 5 }, { kText2, 5, 4, 6 }, { kText2, 6, 5, 6 }, { kText2, 7, 6, 6 }, { kText2, 50, 6, 6 }, { kText3, 0, 0, 1 }, { kText3, 1, 0, 2 }, { kText3, 2, 1, 4 }, { kText3, 3, 2, 4 }, { kText3, 4, 2, 5 }, { kText3, 5, 4, 6 }, { kText3, 6, 5, 6 }, { kText3, 7, 6, 6 }, { kText3, 50, 6, 6 }, }; #if defined(OS_WIN) // TODO(msw): XP fails due to lack of font support: http://crbug.com/106450 if (base::win::GetVersion() < base::win::VERSION_VISTA) return; #endif RenderText* render_text = GetRenderText(); for (size_t i = 0; i < arraysize(cases); i++) { SCOPED_TRACE(base::StringPrintf("Testing cases[%" PRIuS "]", i)); render_text->SetText(cases[i].text); size_t next = render_text->IndexOfAdjacentGrapheme(cases[i].index, CURSOR_FORWARD); EXPECT_EQ(cases[i].expected_next, next); EXPECT_TRUE(render_text->IsValidCursorIndex(next)); size_t previous = render_text->IndexOfAdjacentGrapheme(cases[i].index, CURSOR_BACKWARD); EXPECT_EQ(cases[i].expected_previous, previous); EXPECT_TRUE(render_text->IsValidCursorIndex(previous)); } } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MidGraphemeSelectionBounds) { #if defined(OS_WIN) // TODO(msw): XP fails due to lack of font support: http://crbug.com/106450 if (base::win::GetVersion() < base::win::VERSION_VISTA) return; #endif // Test that selection bounds may be set amid multi-character graphemes. const base::string16 kHindi = WideToUTF16(L"\x0915\x093f"); const base::string16 kThai = WideToUTF16(L"\x0e08\x0e33"); const base::string16 cases[] = { kHindi, kThai }; RenderText* render_text = GetRenderText(); for (size_t i = 0; i < arraysize(cases); i++) { SCOPED_TRACE(base::StringPrintf("Testing cases[%" PRIuS "]", i)); render_text->SetText(cases[i]); EXPECT_TRUE(render_text->IsValidLogicalIndex(1)); EXPECT_FALSE(render_text->IsValidCursorIndex(1)); EXPECT_TRUE(render_text->SelectRange(Range(2, 1))); EXPECT_EQ(Range(2, 1), render_text->selection()); EXPECT_EQ(1U, render_text->cursor_position()); // Although selection bounds may be set within a multi-character grapheme, // cursor movement (e.g. via arrow key) should avoid those indices. render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(0U, render_text->cursor_position()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(2U, render_text->cursor_position()); } } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, FindCursorPosition) { const wchar_t* kTestStrings[] = { kLtrRtl, kLtrRtlLtr, kRtlLtr, kRtlLtrRtl }; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(0, 0, 100, 20)); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("Testing case[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i])); for (size_t j = 0; j < render_text->text().length(); ++j) { const Range range(render_text->GetGlyphBounds(j)); // Test a point just inside the leading edge of the glyph bounds. int x = range.is_reversed() ? range.GetMax() - 1 : range.GetMin() + 1; EXPECT_EQ(j, render_text->FindCursorPosition(Point(x, 0)).caret_pos()); } } } TEST_P(RenderTextTest, EdgeSelectionModels) { // Simple Latin text. const base::string16 kLatin = WideToUTF16(L"abc"); // LTR 2-character grapheme. const base::string16 kLTRGrapheme = WideToUTF16(L"\x0915\x093f"); // LTR 2-character grapheme, LTR a, LTR 2-character grapheme. const base::string16 kHindiLatin = WideToUTF16(L"\x0915\x093f" L"a" L"\x0915\x093f"); // RTL 2-character grapheme. const base::string16 kRTLGrapheme = WideToUTF16(L"\x05e0\x05b8"); // RTL 2-character grapheme, LTR a, RTL 2-character grapheme. const base::string16 kHebrewLatin = WideToUTF16(L"\x05e0\x05b8" L"a" L"\x05e0\x05b8"); struct { base::string16 text; base::i18n::TextDirection expected_text_direction; } cases[] = { { base::string16(), base::i18n::LEFT_TO_RIGHT }, { kLatin, base::i18n::LEFT_TO_RIGHT }, { kLTRGrapheme, base::i18n::LEFT_TO_RIGHT }, { kHindiLatin, base::i18n::LEFT_TO_RIGHT }, { kRTLGrapheme, base::i18n::RIGHT_TO_LEFT }, { kHebrewLatin, base::i18n::RIGHT_TO_LEFT }, }; #if defined(OS_WIN) // TODO(msw): XP fails due to lack of font support: http://crbug.com/106450 if (base::win::GetVersion() < base::win::VERSION_VISTA) return; #endif RenderText* render_text = GetRenderText(); for (size_t i = 0; i < arraysize(cases); i++) { render_text->SetText(cases[i].text); bool ltr = (cases[i].expected_text_direction == base::i18n::LEFT_TO_RIGHT); SelectionModel start_edge = test_api()->EdgeSelectionModel(ltr ? CURSOR_LEFT : CURSOR_RIGHT); EXPECT_EQ(start_edge, SelectionModel(0, CURSOR_BACKWARD)); SelectionModel end_edge = test_api()->EdgeSelectionModel(ltr ? CURSOR_RIGHT : CURSOR_LEFT); EXPECT_EQ(end_edge, SelectionModel(cases[i].text.length(), CURSOR_FORWARD)); } } TEST_P(RenderTextTest, SelectAll) { const wchar_t* const cases[] = { kWeak, kLtr, kLtrRtl, kLtrRtlLtr, kRtl, kRtlLtr, kRtlLtrRtl }; // Ensure that SelectAll respects the |reversed| argument regardless of // application locale and text content directionality. RenderText* render_text = GetRenderText(); const SelectionModel expected_reversed(Range(3, 0), CURSOR_FORWARD); const SelectionModel expected_forwards(Range(0, 3), CURSOR_BACKWARD); const bool was_rtl = base::i18n::IsRTL(); for (size_t i = 0; i < 2; ++i) { SetRTL(!base::i18n::IsRTL()); // Test that an empty string produces an empty selection model. render_text->SetText(base::string16()); EXPECT_EQ(render_text->selection_model(), SelectionModel()); // Test the weak, LTR, RTL, and Bidi string cases. for (size_t j = 0; j < arraysize(cases); j++) { render_text->SetText(WideToUTF16(cases[j])); render_text->SelectAll(false); EXPECT_EQ(render_text->selection_model(), expected_forwards); render_text->SelectAll(true); EXPECT_EQ(render_text->selection_model(), expected_reversed); } } EXPECT_EQ(was_rtl, base::i18n::IsRTL()); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveCursorLeftRightWithSelection) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2")); // Left arrow on select ranging (6, 4). render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(6), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(Range(4), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(Range(5), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(Range(6), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_RETAIN); EXPECT_EQ(Range(6, 5), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_RETAIN); EXPECT_EQ(Range(6, 4), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(Range(6), render_text->selection()); // Right arrow on select ranging (4, 6). render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(Range(0), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(1), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(2), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(3), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(5), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(4), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_RETAIN); EXPECT_EQ(Range(4, 5), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_RETAIN); EXPECT_EQ(Range(4, 6), render_text->selection()); render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(Range(4), render_text->selection()); } TEST_P(RenderTextTest, CenteredDisplayOffset) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("abcdefghij")); render_text->SetHorizontalAlignment(ALIGN_CENTER); const int kEnlargement = 10; const int content_width = render_text->GetContentWidth(); Rect display_rect(0, 0, content_width / 2, render_text->font_list().GetHeight()); render_text->SetDisplayRect(display_rect); // Move the cursor to the beginning of the text and, by checking the cursor // bounds, make sure no empty space is to the left of the text. render_text->SetCursorPosition(0); EXPECT_EQ(display_rect.x(), render_text->GetUpdatedCursorBounds().x()); // Widen the display rect and, by checking the cursor bounds, make sure no // empty space is introduced to the left of the text. display_rect.Inset(0, 0, -kEnlargement, 0); render_text->SetDisplayRect(display_rect); EXPECT_EQ(display_rect.x(), render_text->GetUpdatedCursorBounds().x()); // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 if (GetParam() != RENDER_TEXT_MAC) { // Move the cursor to the end of the text and, by checking the cursor // bounds, make sure no empty space is to the right of the text. render_text->SetCursorPosition(render_text->text().length()); EXPECT_EQ(display_rect.right(), render_text->GetUpdatedCursorBounds().right()); // Widen the display rect and, by checking the cursor bounds, make sure no // empty space is introduced to the right of the text. display_rect.Inset(0, 0, -kEnlargement, 0); render_text->SetDisplayRect(display_rect); EXPECT_EQ(display_rect.right(), render_text->GetUpdatedCursorBounds().right()); } } void MoveLeftRightByWordVerifier(RenderText* render_text, const wchar_t* str) { render_text->SetText(WideToUTF16(str)); // Test moving by word from left ro right. render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); bool first_word = true; while (true) { // First, test moving by word from a word break position, such as from // "|abc def" to "abc| def". SelectionModel start = render_text->selection_model(); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); SelectionModel end = render_text->selection_model(); if (end == start) // reach the end. break; // For testing simplicity, each word is a 3-character word. int num_of_character_moves = first_word ? 3 : 4; first_word = false; render_text->MoveCursorTo(start); for (int j = 0; j < num_of_character_moves; ++j) render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(end, render_text->selection_model()); // Then, test moving by word from positions inside the word, such as from // "a|bc def" to "abc| def", and from "ab|c def" to "abc| def". for (int j = 1; j < num_of_character_moves; ++j) { render_text->MoveCursorTo(start); for (int k = 0; k < j; ++k) render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, SELECTION_NONE); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(end, render_text->selection_model()); } } // Test moving by word from right to left. render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); first_word = true; while (true) { SelectionModel start = render_text->selection_model(); render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, SELECTION_NONE); SelectionModel end = render_text->selection_model(); if (end == start) // reach the end. break; int num_of_character_moves = first_word ? 3 : 4; first_word = false; render_text->MoveCursorTo(start); for (int j = 0; j < num_of_character_moves; ++j) render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(end, render_text->selection_model()); for (int j = 1; j < num_of_character_moves; ++j) { render_text->MoveCursorTo(start); for (int k = 0; k < j; ++k) render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, SELECTION_NONE); render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(end, render_text->selection_model()); } } } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 // TODO(msw): Make these work on Windows. http://crbug.com/196326 #if !defined(OS_WIN) TEST_P(RenderTextHarfBuzzTest, MoveLeftRightByWordInBidiText) { RenderText* render_text = GetRenderText(); // For testing simplicity, each word is a 3-character word. std::vector test; test.push_back(L"abc"); test.push_back(L"abc def"); test.push_back(L"\x05E1\x05E2\x05E3"); test.push_back(L"\x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6"); test.push_back(L"abc \x05E1\x05E2\x05E3"); test.push_back(L"abc def \x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6"); test.push_back(L"abc def hij \x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6" L" \x05E7\x05E8\x05E9"); test.push_back(L"abc \x05E1\x05E2\x05E3 hij"); test.push_back(L"abc def \x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6 hij opq"); test.push_back(L"abc def hij \x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6" L" \x05E7\x05E8\x05E9" L" opq rst uvw"); test.push_back(L"\x05E1\x05E2\x05E3 abc"); test.push_back(L"\x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6 abc def"); test.push_back(L"\x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6 \x05E7\x05E8\x05E9" L" abc def hij"); test.push_back(L"\x05D1\x05D2\x05D3 abc \x05E1\x05E2\x05E3"); test.push_back(L"\x05D1\x05D2\x05D3 \x05D4\x05D5\x05D6 abc def" L" \x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6"); test.push_back(L"\x05D1\x05D2\x05D3 \x05D4\x05D5\x05D6 \x05D7\x05D8\x05D9" L" abc def hij \x05E1\x05E2\x05E3 \x05E4\x05E5\x05E6" L" \x05E7\x05E8\x05E9"); for (size_t i = 0; i < test.size(); ++i) MoveLeftRightByWordVerifier(render_text, test[i]); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveLeftRightByWordInBidiText_TestEndOfText) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"ab\x05E1")); // Moving the cursor by word from "abC|" to the left should return "|abC". // But since end of text is always treated as a word break, it returns // position "ab|C". // TODO(xji): Need to make it work as expected. render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, SELECTION_NONE); // EXPECT_EQ(SelectionModel(), render_text->selection_model()); // Moving the cursor by word from "|abC" to the right returns "abC|". render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(SelectionModel(3, CURSOR_FORWARD), render_text->selection_model()); render_text->SetText(WideToUTF16(L"\x05E1\x05E2" L"a")); // For logical text "BCa", moving the cursor by word from "aCB|" to the left // returns "|aCB". render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, SELECTION_NONE); render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(SelectionModel(3, CURSOR_FORWARD), render_text->selection_model()); // Moving the cursor by word from "|aCB" to the right should return "aCB|". // But since end of text is always treated as a word break, it returns // position "a|CB". // TODO(xji): Need to make it work as expected. render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); // EXPECT_EQ(SelectionModel(), render_text->selection_model()); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveLeftRightByWordInTextWithMultiSpaces) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"abc def")); render_text->MoveCursorTo(SelectionModel(5, CURSOR_FORWARD)); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(11U, render_text->cursor_position()); render_text->MoveCursorTo(SelectionModel(5, CURSOR_FORWARD)); render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(0U, render_text->cursor_position()); } #endif // !defined(OS_WIN) // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, MoveLeftRightByWordInChineseText) { RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"\x6211\x4EEC\x53BB\x516C\x56ED\x73A9")); render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, SELECTION_NONE); EXPECT_EQ(0U, render_text->cursor_position()); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(2U, render_text->cursor_position()); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(3U, render_text->cursor_position()); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(5U, render_text->cursor_position()); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(6U, render_text->cursor_position()); render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, SELECTION_NONE); EXPECT_EQ(6U, render_text->cursor_position()); } TEST_P(RenderTextTest, StringSizeSanity) { RenderText* render_text = GetRenderText(); render_text->SetText(UTF8ToUTF16("Hello World")); const Size string_size = render_text->GetStringSize(); EXPECT_GT(string_size.width(), 0); EXPECT_GT(string_size.height(), 0); } TEST_P(RenderTextTest, StringSizeLongStrings) { RenderText* render_text = GetRenderText(); Size previous_string_size; for (size_t length = 10; length < 1000000; length *= 10) { render_text->SetText(base::string16(length, 'a')); const Size string_size = render_text->GetStringSize(); EXPECT_GT(string_size.width(), previous_string_size.width()); EXPECT_GT(string_size.height(), 0); previous_string_size = string_size; } } TEST_P(RenderTextTest, StringSizeEmptyString) { // Ascent and descent of Arial and Symbol are different on most platforms. const FontList font_list( base::StringPrintf("Arial,%s, 16px", kSymbolFontName)); RenderText* render_text = GetRenderText(); render_text->SetFontList(font_list); render_text->SetDisplayRect(Rect(0, 0, 0, font_list.GetHeight())); // The empty string respects FontList metrics for non-zero height // and baseline. render_text->SetText(base::string16()); EXPECT_EQ(font_list.GetHeight(), render_text->GetStringSize().height()); EXPECT_EQ(0, render_text->GetStringSize().width()); EXPECT_EQ(font_list.GetBaseline(), render_text->GetBaseline()); render_text->SetText(UTF8ToUTF16(" ")); EXPECT_EQ(font_list.GetHeight(), render_text->GetStringSize().height()); EXPECT_EQ(font_list.GetBaseline(), render_text->GetBaseline()); } TEST_P(RenderTextTest, StringSizeRespectsFontListMetrics) { // Check that Arial and the CJK font have different font metrics. Font arial_font("Arial", 16); ASSERT_EQ("arial", base::ToLowerASCII(arial_font.GetActualFontNameForTesting())); Font cjk_font(kCJKFontName, 16); ASSERT_EQ(base::ToLowerASCII(kCJKFontName), base::ToLowerASCII(cjk_font.GetActualFontNameForTesting())); EXPECT_NE(arial_font.GetHeight(), cjk_font.GetHeight()); EXPECT_NE(arial_font.GetBaseline(), cjk_font.GetBaseline()); // "a" should be rendered with Arial, not with the CJK font. const char* arial_font_text = "a"; // "円" CJK UNIFIED IDEOGRAPH-5186, aka the Yen sign should be rendered with // the CJK font, not with Arial. const char* cjk_font_text = "\xE5\x86\x86"; Font smaller_font = arial_font; Font larger_font = cjk_font; const char* smaller_font_text = arial_font_text; const char* larger_font_text = cjk_font_text; if (cjk_font.GetHeight() < arial_font.GetHeight() && cjk_font.GetBaseline() < arial_font.GetBaseline()) { std::swap(smaller_font, larger_font); std::swap(smaller_font_text, larger_font_text); } ASSERT_LT(smaller_font.GetHeight(), larger_font.GetHeight()); ASSERT_LT(smaller_font.GetBaseline(), larger_font.GetBaseline()); // Check |smaller_font_text| is rendered with the smaller font. RenderText* render_text = GetRenderText(); render_text->SetText(UTF8ToUTF16(smaller_font_text)); render_text->SetFontList(FontList(smaller_font)); render_text->SetDisplayRect(Rect(0, 0, 0, render_text->font_list().GetHeight())); EXPECT_EQ(smaller_font.GetHeight(), render_text->GetStringSize().height()); EXPECT_EQ(smaller_font.GetBaseline(), render_text->GetBaseline()); EXPECT_STRCASEEQ( render_text->GetFontSpansForTesting()[0].first.GetFontName().c_str(), smaller_font.GetFontName().c_str()); // Layout the same text with mixed fonts. The text should be rendered with // the smaller font, but the height and baseline are determined with the // metrics of the font list, which is equal to the larger font. std::vector fonts; fonts.push_back(smaller_font); // The primary font is the smaller font. fonts.push_back(larger_font); const FontList font_list(fonts); render_text->SetFontList(font_list); render_text->SetDisplayRect(Rect(0, 0, 0, render_text->font_list().GetHeight())); EXPECT_STRCASEEQ( render_text->GetFontSpansForTesting()[0].first.GetFontName().c_str(), smaller_font.GetFontName().c_str()); EXPECT_LT(smaller_font.GetHeight(), render_text->GetStringSize().height()); EXPECT_LT(smaller_font.GetBaseline(), render_text->GetBaseline()); EXPECT_EQ(font_list.GetHeight(), render_text->GetStringSize().height()); EXPECT_EQ(font_list.GetBaseline(), render_text->GetBaseline()); } TEST_P(RenderTextTest, MinLineHeight) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("Hello!")); SizeF default_size = render_text->GetStringSizeF(); ASSERT_NE(0, default_size.height()); ASSERT_NE(0, default_size.width()); render_text->SetMinLineHeight(default_size.height() / 2); EXPECT_EQ(default_size.ToString(), render_text->GetStringSizeF().ToString()); render_text->SetMinLineHeight(default_size.height() * 2); SizeF taller_size = render_text->GetStringSizeF(); EXPECT_EQ(default_size.height() * 2, taller_size.height()); EXPECT_EQ(default_size.width(), taller_size.width()); } TEST_P(RenderTextTest, SetFontList) { RenderText* render_text = GetRenderText(); render_text->SetFontList( FontList(base::StringPrintf("Arial,%s, 13px", kSymbolFontName))); const std::vector& fonts = render_text->font_list().GetFonts(); ASSERT_EQ(2U, fonts.size()); EXPECT_EQ("Arial", fonts[0].GetFontName()); EXPECT_EQ(kSymbolFontName, fonts[1].GetFontName()); EXPECT_EQ(13, render_text->font_list().GetFontSize()); } // http://crbug/624513 #if !defined(OS_WIN) TEST_P(RenderTextTest, StringSizeBoldWidth) { // TODO(mboc): Add some unittests for other weights (currently not // implemented because of test system font configuration). RenderText* render_text = GetRenderText(); render_text->SetText(UTF8ToUTF16("Hello World")); const int plain_width = render_text->GetStringSize().width(); EXPECT_GT(plain_width, 0); // Apply a bold style and check that the new width is greater. render_text->SetWeight(Font::Weight::BOLD); const int bold_width = render_text->GetStringSize().width(); EXPECT_GT(bold_width, plain_width); #if defined(OS_WIN) render_text->SetWeight(Font::Weight::SEMIBOLD); const int semibold_width = render_text->GetStringSize().width(); EXPECT_GT(bold_width, semibold_width); #endif // Now, apply a plain style over the first word only. render_text->ApplyWeight(Font::Weight::NORMAL, Range(0, 5)); const int plain_bold_width = render_text->GetStringSize().width(); EXPECT_GT(plain_bold_width, plain_width); EXPECT_LT(plain_bold_width, bold_width); } #endif // !defined(OS_WIN) TEST_P(RenderTextTest, StringSizeHeight) { base::string16 cases[] = { WideToUTF16(L"Hello World!"), // English WideToUTF16(L"\x6328\x62f6"), // Japanese WideToUTF16(L"\x0915\x093f"), // Hindi WideToUTF16(L"\x05e0\x05b8"), // Hebrew }; const FontList default_font_list; const FontList& larger_font_list = default_font_list.DeriveWithSizeDelta(24); EXPECT_GT(larger_font_list.GetHeight(), default_font_list.GetHeight()); for (size_t i = 0; i < arraysize(cases); i++) { ResetRenderTextInstance(); RenderText* render_text = GetRenderText(); render_text->SetFontList(default_font_list); render_text->SetText(cases[i]); const int height1 = render_text->GetStringSize().height(); EXPECT_GT(height1, 0); // Check that setting the larger font increases the height. render_text->SetFontList(larger_font_list); const int height2 = render_text->GetStringSize().height(); EXPECT_GT(height2, height1); } } TEST_P(RenderTextTest, GetBaselineSanity) { RenderText* render_text = GetRenderText(); render_text->SetText(UTF8ToUTF16("Hello World")); const int baseline = render_text->GetBaseline(); EXPECT_GT(baseline, 0); } TEST_P(RenderTextTest, CursorBoundsInReplacementMode) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("abcdefg")); render_text->SetDisplayRect(Rect(100, 17)); SelectionModel sel_b(1, CURSOR_FORWARD); SelectionModel sel_c(2, CURSOR_FORWARD); Rect cursor_around_b = render_text->GetCursorBounds(sel_b, false); Rect cursor_before_b = render_text->GetCursorBounds(sel_b, true); Rect cursor_before_c = render_text->GetCursorBounds(sel_c, true); EXPECT_EQ(cursor_around_b.x(), cursor_before_b.x()); EXPECT_EQ(cursor_around_b.right(), cursor_before_c.x()); } TEST_P(RenderTextTest, GetTextOffset) { // The default horizontal text offset differs for LTR and RTL, and is only set // when the RenderText object is created. This test will check the default in // LTR mode, and the next test will check the RTL default. const bool was_rtl = base::i18n::IsRTL(); SetRTL(false); // Reset the render text instance since the locale was changed. ResetRenderTextInstance(); RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("abcdefg")); render_text->SetFontList(FontList("Arial, 13px")); // Set display area's size equal to the font size. const Size font_size(render_text->GetContentWidth(), render_text->font_list().GetHeight()); Rect display_rect(font_size); render_text->SetDisplayRect(display_rect); Vector2d offset = render_text->GetLineOffset(0); EXPECT_TRUE(offset.IsZero()); const int kEnlargementX = 2; display_rect.Inset(0, 0, -kEnlargementX, 0); render_text->SetDisplayRect(display_rect); // Check the default horizontal alignment. offset = render_text->GetLineOffset(0); EXPECT_EQ(0, offset.x()); // Check explicitly setting the horizontal alignment. render_text->SetHorizontalAlignment(ALIGN_LEFT); offset = render_text->GetLineOffset(0); EXPECT_EQ(0, offset.x()); render_text->SetHorizontalAlignment(ALIGN_CENTER); offset = render_text->GetLineOffset(0); EXPECT_EQ(kEnlargementX / 2, offset.x()); render_text->SetHorizontalAlignment(ALIGN_RIGHT); offset = render_text->GetLineOffset(0); EXPECT_EQ(kEnlargementX, offset.x()); // Check that text is vertically centered within taller display rects. const int kEnlargementY = display_rect.height(); display_rect.Inset(0, 0, 0, -kEnlargementY); render_text->SetDisplayRect(display_rect); const Vector2d prev_offset = render_text->GetLineOffset(0); display_rect.Inset(0, 0, 0, -2 * kEnlargementY); render_text->SetDisplayRect(display_rect); offset = render_text->GetLineOffset(0); EXPECT_EQ(prev_offset.y() + kEnlargementY, offset.y()); SetRTL(was_rtl); } TEST_P(RenderTextTest, GetTextOffsetHorizontalDefaultInRTL) { // This only checks the default horizontal alignment in RTL mode; all other // GetLineOffset(0) attributes are checked by the test above. const bool was_rtl = base::i18n::IsRTL(); SetRTL(true); // Reset the render text instance since the locale was changed. ResetRenderTextInstance(); RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("abcdefg")); render_text->SetFontList(FontList("Arial, 13px")); const int kEnlargement = 2; const Size font_size(render_text->GetContentWidth() + kEnlargement, render_text->GetStringSize().height()); Rect display_rect(font_size); render_text->SetDisplayRect(display_rect); Vector2d offset = render_text->GetLineOffset(0); EXPECT_EQ(kEnlargement, offset.x()); SetRTL(was_rtl); } TEST_P(RenderTextTest, SetDisplayOffset) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("abcdefg")); render_text->SetFontList(FontList("Arial, 13px")); const Size font_size(render_text->GetContentWidth(), render_text->font_list().GetHeight()); const int kEnlargement = 10; // Set display width |kEnlargement| pixels greater than content width and test // different possible situations. In this case the only possible display // offset is zero. Rect display_rect(font_size); display_rect.Inset(0, 0, -kEnlargement, 0); render_text->SetDisplayRect(display_rect); struct { HorizontalAlignment alignment; int offset; } small_content_cases[] = { { ALIGN_LEFT, -kEnlargement }, { ALIGN_LEFT, 0 }, { ALIGN_LEFT, kEnlargement }, { ALIGN_RIGHT, -kEnlargement }, { ALIGN_RIGHT, 0 }, { ALIGN_RIGHT, kEnlargement }, { ALIGN_CENTER, -kEnlargement }, { ALIGN_CENTER, 0 }, { ALIGN_CENTER, kEnlargement }, }; for (size_t i = 0; i < arraysize(small_content_cases); i++) { render_text->SetHorizontalAlignment(small_content_cases[i].alignment); render_text->SetDisplayOffset(small_content_cases[i].offset); EXPECT_EQ(0, render_text->GetUpdatedDisplayOffset().x()); } // Set display width |kEnlargement| pixels less than content width and test // different possible situations. display_rect = Rect(font_size); display_rect.Inset(0, 0, kEnlargement, 0); render_text->SetDisplayRect(display_rect); struct { HorizontalAlignment alignment; int offset; int expected_offset; } large_content_cases[] = { // When text is left-aligned, display offset can be in range // [-kEnlargement, 0]. { ALIGN_LEFT, -2 * kEnlargement, -kEnlargement }, { ALIGN_LEFT, -kEnlargement / 2, -kEnlargement / 2 }, { ALIGN_LEFT, kEnlargement, 0 }, // When text is right-aligned, display offset can be in range // [0, kEnlargement]. { ALIGN_RIGHT, -kEnlargement, 0 }, { ALIGN_RIGHT, kEnlargement / 2, kEnlargement / 2 }, { ALIGN_RIGHT, 2 * kEnlargement, kEnlargement }, // When text is center-aligned, display offset can be in range // [-kEnlargement / 2 - 1, (kEnlargement - 1) / 2]. { ALIGN_CENTER, -kEnlargement, -kEnlargement / 2 - 1 }, { ALIGN_CENTER, -kEnlargement / 4, -kEnlargement / 4 }, { ALIGN_CENTER, kEnlargement / 4, kEnlargement / 4 }, { ALIGN_CENTER, kEnlargement, (kEnlargement - 1) / 2 }, }; for (size_t i = 0; i < arraysize(large_content_cases); i++) { render_text->SetHorizontalAlignment(large_content_cases[i].alignment); render_text->SetDisplayOffset(large_content_cases[i].offset); EXPECT_EQ(large_content_cases[i].expected_offset, render_text->GetUpdatedDisplayOffset().x()); } } TEST_P(RenderTextTest, SameFontForParentheses) { struct { const base::char16 left_char; const base::char16 right_char; } punctuation_pairs[] = { { '(', ')' }, { '{', '}' }, { '<', '>' }, }; struct { base::string16 text; } cases[] = { // English(English) { WideToUTF16(L"Hello World(a)") }, // English(English)English { WideToUTF16(L"Hello World(a)Hello World") }, // Japanese(English) { WideToUTF16(L"\x6328\x62f6(a)") }, // Japanese(English)Japanese { WideToUTF16(L"\x6328\x62f6(a)\x6328\x62f6") }, // English(Japanese)English { WideToUTF16(L"Hello World(\x6328\x62f6)Hello World") }, // Hindi(English) { WideToUTF16(L"\x0915\x093f(a)") }, // Hindi(English)Hindi { WideToUTF16(L"\x0915\x093f(a)\x0915\x093f") }, // English(Hindi)English { WideToUTF16(L"Hello World(\x0915\x093f)Hello World") }, // Hebrew(English) { WideToUTF16(L"\x05e0\x05b8(a)") }, // Hebrew(English)Hebrew { WideToUTF16(L"\x05e0\x05b8(a)\x05e0\x05b8") }, // English(Hebrew)English { WideToUTF16(L"Hello World(\x05e0\x05b8)Hello World") }, }; RenderText* render_text = GetRenderText(); for (size_t i = 0; i < arraysize(cases); ++i) { base::string16 text = cases[i].text; const size_t start_paren_char_index = text.find('('); ASSERT_NE(base::string16::npos, start_paren_char_index); const size_t end_paren_char_index = text.find(')'); ASSERT_NE(base::string16::npos, end_paren_char_index); for (size_t j = 0; j < arraysize(punctuation_pairs); ++j) { text[start_paren_char_index] = punctuation_pairs[j].left_char; text[end_paren_char_index] = punctuation_pairs[j].right_char; render_text->SetText(text); const std::vector spans = render_text->GetFontSpansForTesting(); int start_paren_span_index = -1; int end_paren_span_index = -1; for (size_t k = 0; k < spans.size(); ++k) { if (IndexInRange(spans[k].second, start_paren_char_index)) start_paren_span_index = k; if (IndexInRange(spans[k].second, end_paren_char_index)) end_paren_span_index = k; } ASSERT_NE(-1, start_paren_span_index); ASSERT_NE(-1, end_paren_span_index); const Font& start_font = spans[start_paren_span_index].first; const Font& end_font = spans[end_paren_span_index].first; EXPECT_EQ(start_font.GetFontName(), end_font.GetFontName()); EXPECT_EQ(start_font.GetFontSize(), end_font.GetFontSize()); EXPECT_EQ(start_font.GetStyle(), end_font.GetStyle()); } } } // Make sure the caret width is always >=1 so that the correct // caret is drawn at high DPI. crbug.com/164100. TEST_P(RenderTextTest, CaretWidth) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("abcdefg")); EXPECT_GE(render_text->GetUpdatedCursorBounds().width(), 1); } TEST_P(RenderTextTest, SelectWord) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16(" foo a.bc.d bar")); struct { size_t cursor; size_t selection_start; size_t selection_end; } cases[] = { { 0, 0, 1 }, { 1, 1, 4 }, { 2, 1, 4 }, { 3, 1, 4 }, { 4, 4, 6 }, { 5, 4, 6 }, { 6, 6, 7 }, { 7, 7, 8 }, { 8, 8, 10 }, { 9, 8, 10 }, { 10, 10, 11 }, { 11, 11, 12 }, { 12, 12, 13 }, { 13, 13, 16 }, { 14, 13, 16 }, { 15, 13, 16 }, { 16, 13, 16 }, }; for (size_t i = 0; i < arraysize(cases); ++i) { render_text->SetCursorPosition(cases[i].cursor); render_text->SelectWord(); EXPECT_EQ(Range(cases[i].selection_start, cases[i].selection_end), render_text->selection()); } } // Make sure the last word is selected when the cursor is at text.length(). TEST_P(RenderTextTest, LastWordSelected) { const std::string kTestURL1 = "http://www.google.com"; const std::string kTestURL2 = "http://www.google.com/something/"; RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16(kTestURL1)); render_text->SetCursorPosition(kTestURL1.length()); render_text->SelectWord(); EXPECT_EQ(ASCIIToUTF16("com"), GetSelectedText(render_text)); EXPECT_FALSE(render_text->selection().is_reversed()); render_text->SetText(ASCIIToUTF16(kTestURL2)); render_text->SetCursorPosition(kTestURL2.length()); render_text->SelectWord(); EXPECT_EQ(ASCIIToUTF16("/"), GetSelectedText(render_text)); EXPECT_FALSE(render_text->selection().is_reversed()); } // When given a non-empty selection, SelectWord should expand the selection to // nearest word boundaries. TEST_P(RenderTextTest, SelectMultipleWords) { const std::string kTestURL = "http://www.google.com"; RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16(kTestURL)); render_text->SelectRange(Range(16, 20)); render_text->SelectWord(); EXPECT_EQ(ASCIIToUTF16("google.com"), GetSelectedText(render_text)); EXPECT_FALSE(render_text->selection().is_reversed()); // SelectWord should preserve the selection direction. render_text->SelectRange(Range(20, 16)); render_text->SelectWord(); EXPECT_EQ(ASCIIToUTF16("google.com"), GetSelectedText(render_text)); EXPECT_TRUE(render_text->selection().is_reversed()); } // TODO(asvitkine): RenderTextMac cursor movements. http://crbug.com/131618 TEST_P(RenderTextHarfBuzzTest, DisplayRectShowsCursorLTR) { ASSERT_FALSE(base::i18n::IsRTL()); ASSERT_FALSE(base::i18n::ICUIsRTL()); RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"abcdefghijklmnopqrstuvwxzyabcdefg")); render_text->MoveCursorTo(SelectionModel(render_text->text().length(), CURSOR_FORWARD)); int width = render_text->GetStringSize().width(); ASSERT_GT(width, 10); // Ensure that the cursor is placed at the width of its preceding text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(width, render_text->GetUpdatedCursorBounds().x()); // Ensure that shrinking the display rectangle keeps the cursor in view. render_text->SetDisplayRect(Rect(width - 10, 1)); EXPECT_EQ(render_text->display_rect().width(), render_text->GetUpdatedCursorBounds().right()); // Ensure that the text will pan to fill its expanding display rectangle. render_text->SetDisplayRect(Rect(width - 5, 1)); EXPECT_EQ(render_text->display_rect().width(), render_text->GetUpdatedCursorBounds().right()); // Ensure that a sufficiently large display rectangle shows all the text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(width, render_text->GetUpdatedCursorBounds().x()); // Repeat the test with RTL text. render_text->SetText(WideToUTF16(L"\x5d0\x5d1\x5d2\x5d3\x5d4\x5d5\x5d6\x5d7" L"\x5d8\x5d9\x5da\x5db\x5dc\x5dd\x5de\x5df")); render_text->MoveCursorTo(SelectionModel(0, CURSOR_FORWARD)); width = render_text->GetStringSize().width(); ASSERT_GT(width, 10); // Ensure that the cursor is placed at the width of its preceding text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(width, render_text->GetUpdatedCursorBounds().x()); // Ensure that shrinking the display rectangle keeps the cursor in view. render_text->SetDisplayRect(Rect(width - 10, 1)); EXPECT_EQ(render_text->display_rect().width(), render_text->GetUpdatedCursorBounds().right()); // Ensure that the text will pan to fill its expanding display rectangle. render_text->SetDisplayRect(Rect(width - 5, 1)); EXPECT_EQ(render_text->display_rect().width(), render_text->GetUpdatedCursorBounds().right()); // Ensure that a sufficiently large display rectangle shows all the text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(width, render_text->GetUpdatedCursorBounds().x()); } TEST_P(RenderTextTest, DisplayRectShowsCursorRTL) { // Set the application default text direction to RTL. const bool was_rtl = base::i18n::IsRTL(); SetRTL(true); // Reset the render text instance since the locale was changed. ResetRenderTextInstance(); RenderText* render_text = GetRenderText(); render_text->SetText(WideToUTF16(L"abcdefghijklmnopqrstuvwxzyabcdefg")); render_text->MoveCursorTo(SelectionModel(0, CURSOR_FORWARD)); int width = render_text->GetStringSize().width(); ASSERT_GT(width, 10); // Ensure that the cursor is placed at the width of its preceding text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(render_text->display_rect().width() - width - 1, render_text->GetUpdatedCursorBounds().x()); // Ensure that shrinking the display rectangle keeps the cursor in view. render_text->SetDisplayRect(Rect(width - 10, 1)); EXPECT_EQ(0, render_text->GetUpdatedCursorBounds().x()); // Ensure that the text will pan to fill its expanding display rectangle. render_text->SetDisplayRect(Rect(width - 5, 1)); EXPECT_EQ(0, render_text->GetUpdatedCursorBounds().x()); // Ensure that a sufficiently large display rectangle shows all the text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(render_text->display_rect().width() - width - 1, render_text->GetUpdatedCursorBounds().x()); // Repeat the test with RTL text. render_text->SetText(WideToUTF16(L"\x5d0\x5d1\x5d2\x5d3\x5d4\x5d5\x5d6\x5d7" L"\x5d8\x5d9\x5da\x5db\x5dc\x5dd\x5de\x5df")); render_text->MoveCursorTo(SelectionModel(render_text->text().length(), CURSOR_FORWARD)); width = render_text->GetStringSize().width(); ASSERT_GT(width, 10); // Ensure that the cursor is placed at the width of its preceding text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(render_text->display_rect().width() - width - 1, render_text->GetUpdatedCursorBounds().x()); // Ensure that shrinking the display rectangle keeps the cursor in view. render_text->SetDisplayRect(Rect(width - 10, 1)); EXPECT_EQ(0, render_text->GetUpdatedCursorBounds().x()); // Ensure that the text will pan to fill its expanding display rectangle. render_text->SetDisplayRect(Rect(width - 5, 1)); EXPECT_EQ(0, render_text->GetUpdatedCursorBounds().x()); // Ensure that a sufficiently large display rectangle shows all the text. render_text->SetDisplayRect(Rect(width + 10, 1)); EXPECT_EQ(render_text->display_rect().width() - width - 1, render_text->GetUpdatedCursorBounds().x()); // Reset the application default text direction to LTR. SetRTL(was_rtl); EXPECT_EQ(was_rtl, base::i18n::IsRTL()); } // Changing colors between or inside ligated glyphs should not break shaping. TEST_P(RenderTextTest, SelectionKeepsLigatures) { const wchar_t* kTestStrings[] = { L"\x644\x623", L"\x633\x627" }; RenderText* render_text = GetRenderText(); render_text->set_selection_color(SK_ColorRED); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { render_text->SetText(WideToUTF16(kTestStrings[i])); const int expected_width = render_text->GetStringSize().width(); render_text->MoveCursorTo(SelectionModel(Range(0, 1), CURSOR_FORWARD)); EXPECT_EQ(expected_width, render_text->GetStringSize().width()); // Drawing the text should not DCHECK or crash; see http://crbug.com/262119 render_text->Draw(canvas()); render_text->MoveCursorTo(SelectionModel(0, CURSOR_FORWARD)); } } // Ensure strings wrap onto multiple lines for a small available width. TEST_P(RenderTextHarfBuzzTest, Multiline_MinWidth) { const wchar_t* kTestStrings[] = { kWeak, kLtr, kLtrRtl, kLtrRtlLtr, kRtl, kRtlLtr, kRtlLtrRtl }; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(1, 1000)); render_text->SetMultiline(true); render_text->SetWordWrapBehavior(WRAP_LONG_WORDS); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i])); render_text->Draw(canvas()); EXPECT_GT(test_api()->lines().size(), 1U); } } // Ensure strings wrap onto multiple lines for a normal available width. TEST_P(RenderTextHarfBuzzTest, Multiline_NormalWidth) { const struct { const wchar_t* const text; const Range first_line_char_range; const Range second_line_char_range; bool is_ltr; } kTestStrings[] = { { L"abc defg hijkl", Range(0, 9), Range(9, 14), true }, { L"qwertyzxcvbn", Range(0, 10), Range(10, 12), true }, { L"\x0627\x0644\x0644\x063A\x0629 " L"\x0627\x0644\x0639\x0631\x0628\x064A\x0629", Range(0, 6), Range(6, 13), false }, { L"\x062A\x0641\x0627\x062D \x05EA\x05E4\x05D5\x05D6\x05D9" L"\x05DA\x05DB\x05DD", Range(0, 5), Range(5, 13), false } }; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); // Specify the fixed width for characters to suppress the possible variations // of linebreak results. SetGlyphWidth(5); render_text->SetDisplayRect(Rect(50, 1000)); render_text->SetMultiline(true); render_text->SetWordWrapBehavior(WRAP_LONG_WORDS); render_text->SetHorizontalAlignment(ALIGN_TO_HEAD); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i].text)); DrawVisualText(); ASSERT_EQ(2U, test_api()->lines().size()); ASSERT_EQ(1U, test_api()->lines()[0].segments.size()); EXPECT_EQ(kTestStrings[i].first_line_char_range, test_api()->lines()[0].segments[0].char_range); ASSERT_EQ(1U, test_api()->lines()[1].segments.size()); EXPECT_EQ(kTestStrings[i].second_line_char_range, test_api()->lines()[1].segments[0].char_range); std::vector text_log; renderer()->GetTextLogAndReset(&text_log); ASSERT_EQ(2U, text_log.size()); // NOTE: this expectation compares the character length and glyph counts, // which isn't always equal. This is okay only because all the test // strings are simple (like, no compound characters nor UTF16-surrogate // pairs). Be careful in case more complicated test strings are added. EXPECT_EQ(kTestStrings[i].first_line_char_range.length(), text_log[0].glyph_count); EXPECT_EQ(kTestStrings[i].second_line_char_range.length(), text_log[1].glyph_count); EXPECT_LT(text_log[0].origin.y(), text_log[1].origin.y()); if (kTestStrings[i].is_ltr) { EXPECT_EQ(0, text_log[0].origin.x()); EXPECT_EQ(0, text_log[1].origin.x()); } else { EXPECT_LT(0, text_log[0].origin.x()); EXPECT_LT(0, text_log[1].origin.x()); } } } // Ensure strings don't wrap onto multiple lines for a sufficient available // width. TEST_P(RenderTextHarfBuzzTest, Multiline_SufficientWidth) { const wchar_t* kTestStrings[] = { L"", L" ", L".", L" . ", L"abc", L"a b c", L"\x62E\x628\x632", L"\x62E \x628 \x632" }; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(1000, 1000)); render_text->SetMultiline(true); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i])); render_text->Draw(canvas()); EXPECT_EQ(1U, test_api()->lines().size()); } } TEST_P(RenderTextHarfBuzzTest, Multiline_Newline) { const struct { const wchar_t* const text; const size_t lines_count; // Ranges of the characters on each line preceding the newline. const Range line_char_ranges[3]; } kTestStrings[] = { {L"abc\ndef", 2ul, { Range(0, 3), Range(4, 7), Range::InvalidRange() } }, {L"a \n b ", 2ul, { Range(0, 2), Range(3, 6), Range::InvalidRange() } }, {L"ab\n", 2ul, { Range(0, 2), Range(), Range::InvalidRange() } }, {L"a\n\nb", 3ul, { Range(0, 1), Range(), Range(3, 4) } }, {L"\nab", 2ul, { Range(), Range(1, 3), Range::InvalidRange() } }, {L"\n", 2ul, { Range(), Range(), Range::InvalidRange() } }, }; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(200, 1000)); render_text->SetMultiline(true); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i].text)); render_text->Draw(canvas()); EXPECT_EQ(kTestStrings[i].lines_count, test_api()->lines().size()); if (kTestStrings[i].lines_count != test_api()->lines().size()) continue; for (size_t j = 0; j < kTestStrings[i].lines_count; ++j) { SCOPED_TRACE(base::StringPrintf("Line %" PRIuS "", j)); // There might be multiple segments in one line. Merge all the segments // ranges in the same line. const size_t segment_size = test_api()->lines()[j].segments.size(); Range line_range; if (segment_size > 0) line_range = Range( test_api()->lines()[j].segments[0].char_range.start(), test_api()->lines()[j].segments[segment_size - 1].char_range.end()); EXPECT_EQ(kTestStrings[i].line_char_ranges[j], line_range); } } } // Make sure that multiline mode ignores elide behavior. TEST_P(RenderTextHarfBuzzTest, Multiline_IgnoreElide) { const wchar_t kTestString[] = L"very very very long string xxxxxxxxxxxxxxxxxxxxxxxxxx"; const wchar_t kEllipsis[] = L"\x2026"; RenderText* render_text = GetRenderText(); render_text->SetElideBehavior(ELIDE_TAIL); render_text->SetDisplayRect(Rect(20, 1000)); render_text->SetText(base::WideToUTF16(kTestString)); EXPECT_NE(base::string16::npos, render_text->GetDisplayText().find(base::WideToUTF16(kEllipsis))); render_text->SetMultiline(true); EXPECT_EQ(base::string16::npos, render_text->GetDisplayText().find(base::WideToUTF16(kEllipsis))); } TEST_P(RenderTextHarfBuzzTest, Multiline_NewlineCharacterReplacement) { const wchar_t* kTestStrings[] = { L"abc\ndef", L"a \n b ", L"ab\n", L"a\n\nb", L"\nab", L"\n", }; for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); ResetRenderTextInstance(); RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(200, 1000)); render_text->SetText(WideToUTF16(kTestStrings[i])); base::string16 display_text = render_text->GetDisplayText(); // If RenderText is not multiline, the newline characters are replaced // by symbols, therefore the character should be changed. EXPECT_NE(WideToUTF16(kTestStrings[i]), render_text->GetDisplayText()); // Setting multiline will fix this, the newline characters will be back // to the original text. render_text->SetMultiline(true); EXPECT_EQ(WideToUTF16(kTestStrings[i]), render_text->GetDisplayText()); } } // Ensure horizontal alignment works in multiline mode. TEST_P(RenderTextHarfBuzzTest, Multiline_HorizontalAlignment) { const struct { const wchar_t* const text; const HorizontalAlignment alignment; } kTestStrings[] = { { L"abcdefghij\nhijkl", ALIGN_LEFT }, { L"nhijkl\nabcdefghij", ALIGN_LEFT }, // hebrew, 2nd line shorter { L"\x5d0\x5d1\x5d2\x5d3\x5d4\x5d5\x5d6\x5d7\n\x5d0\x5d1\x5d2\x5d3", ALIGN_RIGHT }, // hebrew, 2nd line longer { L"\x5d0\x5d1\x5d2\x5d3\n\x5d0\x5d1\x5d2\x5d3\x5d4\x5d5\x5d6\x5d7", ALIGN_RIGHT }, // arabic, 2nd line shorter { L"\x62a\x62b\x62c\x62d\x62e\x62f\x630\n\x660\x661\x662\x663\x664", ALIGN_RIGHT }, // arabic, 2nd line longer { L"\x660\x661\x662\x663\x664\n\x62a\x62b\x62c\x62d\x62e\x62f\x630", ALIGN_RIGHT }, }; const int kGlyphSize = 5; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetHorizontalAlignment(ALIGN_TO_HEAD); SetGlyphWidth(kGlyphSize); render_text->SetDisplayRect(Rect(100, 1000)); render_text->SetMultiline(true); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "] %ls", i, kTestStrings[i].text)); render_text->SetText(WideToUTF16(kTestStrings[i].text)); render_text->Draw(canvas()); ASSERT_LE(2u, test_api()->lines().size()); if (kTestStrings[i].alignment == ALIGN_LEFT) { EXPECT_EQ(0, test_api()->GetAlignmentOffset(0).x()); EXPECT_EQ(0, test_api()->GetAlignmentOffset(1).x()); } else { std::vector lines = base::SplitString( base::WideToUTF16(kTestStrings[i].text), base::string16(1, '\n'), base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL); ASSERT_EQ(2u, lines.size()); int difference = (lines[0].length() - lines[1].length()) * kGlyphSize; EXPECT_EQ(test_api()->GetAlignmentOffset(0).x() + difference, test_api()->GetAlignmentOffset(1).x()); } } } TEST_P(RenderTextHarfBuzzTest, Multiline_WordWrapBehavior) { const int kGlyphSize = 5; const struct { const WordWrapBehavior behavior; const size_t num_lines; const Range char_ranges[4]; } kTestScenarios[] = { { IGNORE_LONG_WORDS, 3u, { Range(0, 4), Range(4, 11), Range(11, 14), Range::InvalidRange() } }, { TRUNCATE_LONG_WORDS, 3u, { Range(0, 4), Range(4, 8), Range(11, 14), Range::InvalidRange() } }, { WRAP_LONG_WORDS, 4u, { Range(0, 4), Range(4, 8), Range(8, 11), Range(11, 14) } }, // TODO(mukai): implement ELIDE_LONG_WORDS. It's not used right now. }; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetMultiline(true); render_text->SetText(ASCIIToUTF16("foo fooooo foo")); SetGlyphWidth(kGlyphSize); render_text->SetDisplayRect(Rect(0, 0, kGlyphSize * 4, 0)); for (size_t i = 0; i < arraysize(kTestScenarios); ++i) { SCOPED_TRACE(base::StringPrintf( "kTestScenarios[%" PRIuS "] %d", i, kTestScenarios[i].behavior)); render_text->SetWordWrapBehavior(kTestScenarios[i].behavior); render_text->Draw(canvas()); ASSERT_EQ(kTestScenarios[i].num_lines, test_api()->lines().size()); for (size_t j = 0; j < test_api()->lines().size(); ++j) { SCOPED_TRACE(base::StringPrintf("%" PRIuS "-th line", j)); EXPECT_EQ(kTestScenarios[i].char_ranges[j], test_api()->lines()[j].segments[0].char_range); EXPECT_EQ(kTestScenarios[i].char_ranges[j].length() * kGlyphSize, test_api()->lines()[j].size.width()); } } } TEST_P(RenderTextHarfBuzzTest, Multiline_LineBreakerBehavior) { const int kGlyphSize = 5; const struct { const wchar_t* const text; const WordWrapBehavior behavior; const Range char_ranges[3]; } kTestScenarios[] = { { L"a single run", IGNORE_LONG_WORDS, {Range(0, 2), Range(2, 9), Range(9, 12) } }, // 3 words: "That's ", ""good". ", "aaa" and 7 runs: "That", "'", "s ", // """, "good", "". ", "aaa". They all mixed together. { L"That's \"good\". aaa", IGNORE_LONG_WORDS, {Range(0, 7), Range(7, 15), Range(15, 18) } }, // Test "\"" should be put into a new line correctly. { L"a \"good\" one.", IGNORE_LONG_WORDS, {Range(0, 2), Range(2, 9), Range(9, 13) } }, // Test for full-width space. { L"That's\x3000good.\x3000yyy", IGNORE_LONG_WORDS, {Range(0, 7), Range(7, 13), Range(13, 16) } }, { L"a single run", TRUNCATE_LONG_WORDS, {Range(0, 2), Range(2, 6), Range(9, 12) } }, { L"That's \"good\". aaa", TRUNCATE_LONG_WORDS, {Range(0, 4), Range(7, 11), Range(15, 18) } }, { L"That's good. aaa", TRUNCATE_LONG_WORDS, {Range(0, 4), Range(7, 11), Range(13, 16) } }, { L"a \"good\" one.", TRUNCATE_LONG_WORDS, {Range(0, 2), Range(2, 6), Range(9, 13) } }, { L"asingleword", WRAP_LONG_WORDS, {Range(0, 4), Range(4, 8), Range(8, 11) } }, { L"That's good", WRAP_LONG_WORDS, {Range(0, 4), Range(4, 7), Range(7, 11) } }, { L"That's \"g\".", WRAP_LONG_WORDS, {Range(0, 4), Range(4, 7), Range(7, 11) } }, }; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetMultiline(true); SetGlyphWidth(kGlyphSize); render_text->SetDisplayRect(Rect(0, 0, kGlyphSize * 4, 0)); for (size_t i = 0; i < arraysize(kTestScenarios); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestScenarios[i].text)); render_text->SetWordWrapBehavior(kTestScenarios[i].behavior); render_text->Draw(canvas()); ASSERT_EQ(3u, test_api()->lines().size()); for (size_t j = 0; j < test_api()->lines().size(); ++j) { SCOPED_TRACE(base::StringPrintf("%" PRIuS "-th line", j)); // Merge all the segments ranges in the same line. size_t segment_size = test_api()->lines()[j].segments.size(); Range line_range; if (segment_size > 0) line_range = Range( test_api()->lines()[j].segments[0].char_range.start(), test_api()->lines()[j].segments[segment_size - 1].char_range.end()); EXPECT_EQ(kTestScenarios[i].char_ranges[j], line_range); EXPECT_EQ(kTestScenarios[i].char_ranges[j].length() * kGlyphSize, test_api()->lines()[j].size.width()); } } } // Test that Surrogate pairs or combining character sequences do not get // separated by line breaking. TEST_P(RenderTextHarfBuzzTest, Multiline_SurrogatePairsOrCombiningChars) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetMultiline(true); render_text->SetWordWrapBehavior(WRAP_LONG_WORDS); // Below is 'MUSICAL SYMBOL G CLEF' (U+1D11E), which is represented in UTF-16 // as two code units forming a surrogate pair: 0xD834 0xDD1E. const base::char16 kSurrogate[] = {0xD834, 0xDD1E, 0}; const base::string16 text_surrogate(kSurrogate); const int kSurrogateWidth = GetStringWidth(kSurrogate, render_text->font_list()); // Below is a Devanagari two-character combining sequence U+0921 U+093F. The // sequence forms a single display character and should not be separated. const base::char16 kCombiningChars[] = {0x921, 0x93F, 0}; const base::string16 text_combining(kCombiningChars); const int kCombiningCharsWidth = GetStringWidth(kCombiningChars, render_text->font_list()); const struct { const base::string16 text; const int display_width; const Range char_ranges[3]; } kTestScenarios[] = { { text_surrogate + text_surrogate + text_surrogate, kSurrogateWidth / 2 * 3, { Range(0, 2), Range(2, 4), Range(4, 6) } }, { text_surrogate + UTF8ToUTF16(" ") + kCombiningChars, std::min(kSurrogateWidth, kCombiningCharsWidth) / 2, { Range(0, 2), Range(2, 3), Range(3, 5) } }, }; for (size_t i = 0; i < arraysize(kTestScenarios); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(kTestScenarios[i].text); render_text->SetDisplayRect(Rect(0, 0, kTestScenarios[i].display_width, 0)); render_text->Draw(canvas()); ASSERT_EQ(3u, test_api()->lines().size()); for (size_t j = 0; j < test_api()->lines().size(); ++j) { SCOPED_TRACE(base::StringPrintf("%" PRIuS "-th line", j)); // There is only one segment in each line. EXPECT_EQ(kTestScenarios[i].char_ranges[j], test_api()->lines()[j].segments[0].char_range); } } } // Test that Zero width characters have the correct line breaking behavior. TEST_P(RenderTextHarfBuzzTest, Multiline_ZeroWidthChars) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetMultiline(true); render_text->SetWordWrapBehavior(WRAP_LONG_WORDS); const base::char16 kZeroWidthSpace = {0x200B}; const base::string16 text(UTF8ToUTF16("test") + kZeroWidthSpace + UTF8ToUTF16("\n") + kZeroWidthSpace + UTF8ToUTF16("test.")); const int kTestWidth = GetStringWidth(UTF8ToUTF16("test"), render_text->font_list()); const Range char_ranges[3] = {Range(0, 5), Range(6, 11), Range(11, 12)}; render_text->SetText(text); render_text->SetDisplayRect(Rect(0, 0, kTestWidth, 0)); render_text->Draw(canvas()); ASSERT_EQ(3u, test_api()->lines().size()); for (size_t j = 0; j < test_api()->lines().size(); ++j) { SCOPED_TRACE(base::StringPrintf("%" PRIuS "-th line", j)); int segment_size = test_api()->lines()[j].segments.size(); ASSERT_GT(segment_size, 0); Range line_range( test_api()->lines()[j].segments[0].char_range.start(), test_api()->lines()[j].segments[segment_size - 1].char_range.end()); EXPECT_EQ(char_ranges[j], line_range); } } TEST_P(RenderTextHarfBuzzTest, NewlineWithoutMultilineFlag) { const wchar_t* kTestStrings[] = { L"abc\ndef", L"a \n b ", L"ab\n", L"a\n\nb", L"\nab", L"\n", }; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(200, 1000)); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i])); render_text->Draw(canvas()); EXPECT_EQ(1U, test_api()->lines().size()); } } // Make sure the horizontal positions of runs in a line (left-to-right for // LTR languages and right-to-left for RTL languages). TEST_P(RenderTextHarfBuzzTest, HarfBuzz_HorizontalPositions) { const struct { const wchar_t* const text; const Range first_run_char_range; const Range second_run_char_range; bool is_rtl; } kTestStrings[] = { { L"abc\x3042\x3044\x3046\x3048\x304A", Range(0, 3), Range(3, 8), false }, { L"\x062A\x0641\x0627\x062D" L"\x05EA\x05E4\x05D5\x05D6\x05D9\x05DA\x05DB\x05DD", Range(0, 4), Range(4, 12), true }, }; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { SCOPED_TRACE(base::StringPrintf("kTestStrings[%" PRIuS "]", i)); render_text->SetText(WideToUTF16(kTestStrings[i].text)); test_api()->EnsureLayout(); const internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(2U, run_list->runs().size()); EXPECT_EQ(kTestStrings[i].first_run_char_range, run_list->runs()[0]->range); EXPECT_EQ(kTestStrings[i].second_run_char_range, run_list->runs()[1]->range); // If it's RTL, the visual order is reversed. if (kTestStrings[i].is_rtl) { EXPECT_EQ(1U, run_list->logical_to_visual(0)); EXPECT_EQ(0U, run_list->logical_to_visual(1)); } else { EXPECT_EQ(0U, run_list->logical_to_visual(0)); EXPECT_EQ(1U, run_list->logical_to_visual(1)); } DrawVisualText(); std::vector text_log; renderer()->GetTextLogAndReset(&text_log); EXPECT_EQ(2U, text_log.size()); // Verifies the DrawText happens in the visual order and left-to-right. // If the text is RTL, the logically first run should be drawn at last. EXPECT_EQ(run_list->runs()[run_list->logical_to_visual(0)]->glyph_count, text_log[0].glyph_count); EXPECT_EQ(run_list->runs()[run_list->logical_to_visual(1)]->glyph_count, text_log[1].glyph_count); EXPECT_LT(text_log[0].origin.x(), text_log[1].origin.x()); } } // Test TextRunHarfBuzz's cluster finding logic. TEST_P(RenderTextHarfBuzzTest, HarfBuzz_Clusters) { struct { uint32_t glyph_to_char[4]; Range chars[4]; Range glyphs[4]; bool is_rtl; } cases[] = { { // From string "A B C D" to glyphs "a b c d". { 0, 1, 2, 3 }, { Range(0, 1), Range(1, 2), Range(2, 3), Range(3, 4) }, { Range(0, 1), Range(1, 2), Range(2, 3), Range(3, 4) }, false }, { // From string "A B C D" to glyphs "d c b a". { 3, 2, 1, 0 }, { Range(0, 1), Range(1, 2), Range(2, 3), Range(3, 4) }, { Range(3, 4), Range(2, 3), Range(1, 2), Range(0, 1) }, true }, { // From string "A B C D" to glyphs "ab c c d". { 0, 2, 2, 3 }, { Range(0, 2), Range(0, 2), Range(2, 3), Range(3, 4) }, { Range(0, 1), Range(0, 1), Range(1, 3), Range(3, 4) }, false }, { // From string "A B C D" to glyphs "d c c ba". { 3, 2, 2, 0 }, { Range(0, 2), Range(0, 2), Range(2, 3), Range(3, 4) }, { Range(3, 4), Range(3, 4), Range(1, 3), Range(0, 1) }, true }, }; internal::TextRunHarfBuzz run((Font())); run.range = Range(0, 4); run.glyph_count = 4; run.glyph_to_char.resize(4); for (size_t i = 0; i < arraysize(cases); ++i) { std::copy(cases[i].glyph_to_char, cases[i].glyph_to_char + 4, run.glyph_to_char.begin()); run.is_rtl = cases[i].is_rtl; for (size_t j = 0; j < 4; ++j) { SCOPED_TRACE(base::StringPrintf("Case %" PRIuS ", char %" PRIuS, i, j)); Range chars; Range glyphs; run.GetClusterAt(j, &chars, &glyphs); EXPECT_EQ(cases[i].chars[j], chars); EXPECT_EQ(cases[i].glyphs[j], glyphs); EXPECT_EQ(cases[i].glyphs[j], run.CharRangeToGlyphRange(chars)); } } } // Ensure that graphemes with multiple code points do not get split. TEST_P(RenderTextHarfBuzzTest, HarfBuzz_SubglyphGraphemeCases) { const wchar_t* cases[] = { // "A" with a combining umlaut, followed by a "B". L"A\x0308" L"B", // Devanagari biconsonantal conjunct "ki", followed by an "a". L"\x0915\x093f\x0905", // Thai consonant and vowel pair "cho chan" + "sara am", followed by Thai // digit 0. L"\x0e08\x0e33\x0E50", }; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); for (size_t i = 0; i < arraysize(cases); ++i) { SCOPED_TRACE(base::StringPrintf("Case %" PRIuS, i)); base::string16 text = WideToUTF16(cases[i]); render_text->SetText(text); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(1U, run_list->size()); internal::TextRunHarfBuzz* run = run_list->runs()[0]; auto first_grapheme_bounds = run->GetGraphemeBounds(render_text, 0); EXPECT_EQ(first_grapheme_bounds, run->GetGraphemeBounds(render_text, 1)); auto second_grapheme_bounds = run->GetGraphemeBounds(render_text, 2); EXPECT_EQ(first_grapheme_bounds.end(), second_grapheme_bounds.start()); } } // Test the partition of a multi-grapheme cluster into grapheme ranges. TEST_P(RenderTextHarfBuzzTest, HarfBuzz_SubglyphGraphemePartition) { struct { uint32_t glyph_to_char[2]; Range bounds[4]; bool is_rtl; } cases[] = { { // From string "A B C D" to glyphs "a bcd". { 0, 1 }, { Range(0, 10), Range(10, 13), Range(13, 17), Range(17, 20) }, false }, { // From string "A B C D" to glyphs "ab cd". { 0, 2 }, { Range(0, 5), Range(5, 10), Range(10, 15), Range(15, 20) }, false }, { // From string "A B C D" to glyphs "dcb a". { 1, 0 }, { Range(10, 20), Range(7, 10), Range(3, 7), Range(0, 3) }, true }, { // From string "A B C D" to glyphs "dc ba". { 2, 0 }, { Range(15, 20), Range(10, 15), Range(5, 10), Range(0, 5) }, true }, }; internal::TextRunHarfBuzz run((Font())); run.range = Range(0, 4); run.glyph_count = 2; run.glyph_to_char.resize(2); run.positions.reset(new SkPoint[4]); run.width = 20; RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetText(ASCIIToUTF16("abcd")); for (size_t i = 0; i < arraysize(cases); ++i) { std::copy(cases[i].glyph_to_char, cases[i].glyph_to_char + 2, run.glyph_to_char.begin()); run.is_rtl = cases[i].is_rtl; for (int j = 0; j < 2; ++j) run.positions[j].set(j * 10, 0); for (size_t j = 0; j < 4; ++j) { SCOPED_TRACE(base::StringPrintf("Case %" PRIuS ", char %" PRIuS, i, j)); EXPECT_EQ(cases[i].bounds[j], run.GetGraphemeBounds(render_text, j).Round()); } } } TEST_P(RenderTextHarfBuzzTest, HarfBuzz_RunDirection) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); const base::string16 mixed = WideToUTF16( L"\x05D0\x05D1" L"1234" L"\x05D2\x05D3" L"abc"); render_text->SetText(mixed); // Get the run list for both display directions. render_text->SetDirectionalityMode(DIRECTIONALITY_FORCE_LTR); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(4U, run_list->size()); EXPECT_TRUE(run_list->runs()[0]->is_rtl); EXPECT_FALSE(run_list->runs()[1]->is_rtl); EXPECT_TRUE(run_list->runs()[2]->is_rtl); EXPECT_FALSE(run_list->runs()[3]->is_rtl); // The Latin letters should appear to the right of the other runs. EXPECT_EQ(2U, run_list->logical_to_visual(0)); EXPECT_EQ(1U, run_list->logical_to_visual(1)); EXPECT_EQ(0U, run_list->logical_to_visual(2)); EXPECT_EQ(3U, run_list->logical_to_visual(3)); render_text->SetDirectionalityMode(DIRECTIONALITY_FORCE_RTL); test_api()->EnsureLayout(); run_list = GetHarfBuzzRunList(); ASSERT_EQ(4U, run_list->size()); EXPECT_TRUE(run_list->runs()[0]->is_rtl); EXPECT_FALSE(run_list->runs()[1]->is_rtl); EXPECT_TRUE(run_list->runs()[2]->is_rtl); EXPECT_FALSE(run_list->runs()[3]->is_rtl); // The Latin letters should appear to the left of the other runs. EXPECT_EQ(3U, run_list->logical_to_visual(0)); EXPECT_EQ(2U, run_list->logical_to_visual(1)); EXPECT_EQ(1U, run_list->logical_to_visual(2)); EXPECT_EQ(0U, run_list->logical_to_visual(3)); } TEST_P(RenderTextHarfBuzzTest, HarfBuzz_BreakRunsByUnicodeBlocks) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); // The '\x25B6' "play character" should break runs. http://crbug.com/278913 render_text->SetText(WideToUTF16(L"x\x25B6y")); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(3U, run_list->size()); EXPECT_EQ(Range(0, 1), run_list->runs()[0]->range); EXPECT_EQ(Range(1, 2), run_list->runs()[1]->range); EXPECT_EQ(Range(2, 3), run_list->runs()[2]->range); render_text->SetText(WideToUTF16(L"x \x25B6 y")); test_api()->EnsureLayout(); run_list = GetHarfBuzzRunList(); ASSERT_EQ(4U, run_list->size()); EXPECT_EQ(Range(0, 2), run_list->runs()[0]->range); EXPECT_EQ(Range(2, 3), run_list->runs()[1]->range); EXPECT_EQ(Range(3, 4), run_list->runs()[2]->range); EXPECT_EQ(Range(4, 5), run_list->runs()[3]->range); } TEST_P(RenderTextHarfBuzzTest, HarfBuzz_BreakRunsByEmoji) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); // \xF0\x9F\x98\x81 (U+1F601) is smile icon emoji. \xE2\x9C\xA8 (U+2728) is // a sparkle icon. Both can be drawn with color emoji fonts, so runs should be // separated. See crbug.com/448909 render_text->SetText(UTF8ToUTF16("x\xF0\x9F\x98\x81y\xE2\x9C\xA8")); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(4U, run_list->size()); EXPECT_EQ(Range(0, 1), run_list->runs()[0]->range); // The length is 2 since U+1F601 is represented as a surrogate pair in UTF16. EXPECT_EQ(Range(1, 3), run_list->runs()[1]->range); EXPECT_EQ(Range(3, 4), run_list->runs()[2]->range); EXPECT_EQ(Range(4, 5), run_list->runs()[3]->range); } TEST_P(RenderTextHarfBuzzTest, HarfBuzz_BreakRunsByAscii) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); // \xF0\x9F\x90\xB1 (U+1F431) is a cat face. It should be put into a separate // run from the ASCII period character. render_text->SetText(UTF8ToUTF16("\xF0\x9F\x90\xB1.")); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(2U, run_list->size()); // U+1F431 is represented as a surrogate pair in UTF16. EXPECT_EQ(Range(0, 2), run_list->runs()[0]->range); EXPECT_EQ(Range(2, 3), run_list->runs()[1]->range); } TEST_P(RenderTextHarfBuzzTest, GlyphBounds) { const wchar_t* kTestStrings[] = { L"asdf 1234 qwer", L"\x0647\x0654", L"\x0645\x0631\x062D\x0628\x0627" }; RenderText* render_text = GetRenderText(); for (size_t i = 0; i < arraysize(kTestStrings); ++i) { render_text->SetText(WideToUTF16(kTestStrings[i])); test_api()->EnsureLayout(); for (size_t j = 0; j < render_text->text().length(); ++j) EXPECT_FALSE(render_text->GetGlyphBounds(j).is_empty()); } } // Ensure that shaping with a non-existent font does not cause a crash. TEST_P(RenderTextHarfBuzzTest, HarfBuzz_NonExistentFont) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetText(ASCIIToUTF16("test")); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(1U, run_list->size()); internal::TextRunHarfBuzz* run = run_list->runs()[0]; ShapeRunWithFont(render_text->text(), Font("TheFontThatDoesntExist", 13), FontRenderParams(), run); } // Ensure an empty run returns sane values to queries. TEST_P(RenderTextHarfBuzzTest, HarfBuzz_EmptyRun) { internal::TextRunHarfBuzz run((Font())); RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetText(ASCIIToUTF16("abcdefgh")); run.range = Range(3, 8); run.glyph_count = 0; EXPECT_EQ(Range(0, 0), run.CharRangeToGlyphRange(Range(4, 5))); EXPECT_EQ(Range(0, 0), run.GetGraphemeBounds(render_text, 4).Round()); Range chars; Range glyphs; run.GetClusterAt(4, &chars, &glyphs); EXPECT_EQ(Range(3, 8), chars); EXPECT_EQ(Range(0, 0), glyphs); } // Ensure the line breaker doesn't compute the word's width bigger than the // actual size. See http://crbug.com/470073 TEST_P(RenderTextHarfBuzzTest, HarfBuzz_WordWidthWithDiacritics) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); const base::string16 kWord = WideToUTF16(L"\u0906\u092A\u0915\u0947 "); render_text->SetText(kWord); const SizeF text_size = render_text->GetStringSizeF(); render_text->SetText(kWord + kWord); render_text->SetMultiline(true); EXPECT_EQ(text_size.width() * 2, render_text->GetStringSizeF().width()); EXPECT_EQ(text_size.height(), render_text->GetStringSizeF().height()); render_text->SetDisplayRect(Rect(0, 0, std::ceil(text_size.width()), 0)); EXPECT_NEAR(text_size.width(), render_text->GetStringSizeF().width(), 1.0f); EXPECT_EQ(text_size.height() * 2, render_text->GetStringSizeF().height()); } // Ensure a string fits in a display rect with a width equal to the string's. TEST_P(RenderTextTest, StringFitsOwnWidth) { RenderText* render_text = GetRenderText(); const base::string16 kString = ASCIIToUTF16("www.example.com"); render_text->SetText(kString); render_text->ApplyWeight(Font::Weight::BOLD, Range(0, 3)); render_text->SetElideBehavior(ELIDE_TAIL); render_text->SetDisplayRect(Rect(0, 0, 500, 100)); EXPECT_EQ(kString, render_text->GetDisplayText()); render_text->SetDisplayRect(Rect(0, 0, render_text->GetContentWidth(), 100)); EXPECT_EQ(kString, render_text->GetDisplayText()); } // TODO(derat): Figure out why this fails on Windows: http://crbug.com/427184 #if !defined(OS_WIN) // Ensure that RenderText examines all of the fonts in its FontList before // falling back to other fonts. TEST_P(RenderTextHarfBuzzTest, HarfBuzz_FontListFallback) { // Double-check that the requested fonts are present. FontList font_list(base::StringPrintf("Arial, %s, 12px", kSymbolFontName)); const std::vector& fonts = font_list.GetFonts(); ASSERT_EQ(2u, fonts.size()); ASSERT_EQ("arial", base::ToLowerASCII(fonts[0].GetActualFontNameForTesting())); ASSERT_EQ(base::ToLowerASCII(kSymbolFontName), base::ToLowerASCII(fonts[1].GetActualFontNameForTesting())); // "⊕" (CIRCLED PLUS) should be rendered with Symbol rather than falling back // to some other font that's present on the system. RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetFontList(font_list); render_text->SetText(UTF8ToUTF16("\xE2\x8A\x95")); const std::vector spans = render_text->GetFontSpansForTesting(); ASSERT_EQ(static_cast(1), spans.size()); EXPECT_STRCASEEQ(kSymbolFontName, spans[0].first.GetFontName().c_str()); } #endif // !defined(OS_WIN) // Ensure that the fallback fonts of the Uniscribe font are tried for shaping. #if defined(OS_WIN) TEST_P(RenderTextHarfBuzzTest, HarfBuzz_UniscribeFallback) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); PlatformFontWin* font_win = new PlatformFontWin("Meiryo", 12); // Japanese name for Meiryo. This name won't be found in the system's linked // fonts, forcing RTHB to try the Uniscribe font and its fallbacks. font_win->font_ref_->font_name_ = WideToUTF8(L"\x30e1\x30a4\x30ea\x30aa"); FontList font_list((Font(font_win))); render_text->SetFontList(font_list); // Korean character "han". render_text->SetText(WideToUTF16(L"\xd55c")); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(1U, run_list->size()); EXPECT_EQ(0U, run_list->runs()[0]->CountMissingGlyphs()); } #endif // defined(OS_WIN) // Ensure that the fallback fonts offered by GetFallbackFonts() are // tried. Note this test assumes the font "Arial" doesn't provide a unicode // glyph for a particular character, and that there exists a system fallback // font which does. // TODO(msw): Fallback doesn't find a glyph on Linux. #if !defined(OS_LINUX) TEST_P(RenderTextHarfBuzzTest, HarfBuzz_UnicodeFallback) { RenderTextHarfBuzz* render_text = GetRenderTextHarfBuzz(); render_text->SetFontList(FontList("Arial, 12px")); // Korean character "han". render_text->SetText(WideToUTF16(L"\xd55c")); test_api()->EnsureLayout(); internal::TextRunList* run_list = GetHarfBuzzRunList(); ASSERT_EQ(1U, run_list->size()); EXPECT_EQ(0U, run_list->runs()[0]->CountMissingGlyphs()); } #endif // !defined(OS_LINUX) // http://crbug/624513 #if !defined(OS_WIN) // Ensure that the width reported by RenderText is sufficient for drawing. Draws // to a canvas and checks if any pixel beyond the bounding rectangle is colored. TEST_P(RenderTextTest, TextDoesntClip) { // Fails on Mac with RenderTextHarfBuzz. See http://crbug.com/640068. #if defined(OS_MACOSX) if (GetParam() == RENDER_TEXT_HARFBUZZ) return; #endif const wchar_t* kTestStrings[] = { L" ", // TODO(dschuyler): Underscores draw outside GetStringSize; // crbug.com/459812. This appears to be a preexisting issue that wasn't // revealed by the prior unit tests. // L"TEST_______", L"TEST some stuff", L"WWWWWWWWWW", L"gAXAXAXAXAXAXA", // TODO(dschuyler): A-Ring draws outside GetStringSize; crbug.com/459812. // L"g\x00C5X\x00C5X\x00C5X\x00C5X\x00C5X\x00C5X\x00C5", L"\x0647\x0654\x0647\x0654\x0647\x0654\x0647\x0654\x0645\x0631\x062D" L"\x0628\x0627"}; const Size kCanvasSize(300, 50); const int kTestSize = 10; sk_sp surface = SkSurface::MakeRasterN32Premul(kCanvasSize.width(), kCanvasSize.height()); Canvas canvas(sk_ref_sp(surface->getCanvas()), 1.0f); RenderText* render_text = GetRenderText(); render_text->SetHorizontalAlignment(ALIGN_LEFT); render_text->SetColor(SK_ColorBLACK); for (auto* string : kTestStrings) { surface->getCanvas()->clear(SK_ColorWHITE); render_text->SetText(WideToUTF16(string)); const Size string_size = render_text->GetStringSize(); render_text->ApplyBaselineStyle(SUPERSCRIPT, Range(1, 2)); render_text->ApplyBaselineStyle(SUPERIOR, Range(3, 4)); render_text->ApplyBaselineStyle(INFERIOR, Range(5, 6)); render_text->ApplyBaselineStyle(SUBSCRIPT, Range(7, 8)); render_text->SetWeight(Font::Weight::BOLD); render_text->SetDisplayRect( Rect(kTestSize, kTestSize, string_size.width(), string_size.height())); // Allow the RenderText to paint outside of its display rect. render_text->set_clip_to_display_rect(false); ASSERT_LE(string_size.width() + kTestSize * 2, kCanvasSize.width()); render_text->Draw(&canvas); ASSERT_LT(string_size.width() + kTestSize, kCanvasSize.width()); SkPixmap pixmap; surface->peekPixels(&pixmap); const uint32_t* buffer = static_cast(pixmap.addr()); ASSERT_NE(nullptr, buffer); TestRectangleBuffer rect_buffer(string, buffer, kCanvasSize.width(), kCanvasSize.height()); { #if !defined(OS_CHROMEOS) int top_test_height = kTestSize; #if defined(OS_WIN) // Windows 8+ draws 1 pixel above the display rect. if (base::win::GetVersion() >= base::win::VERSION_WIN8) top_test_height = kTestSize - 1; #endif // OS_WIN // TODO(dschuyler): On ChromeOS text draws above the GetStringSize rect. SCOPED_TRACE("TextDoesntClip Top Side"); rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, 0, kCanvasSize.width(), top_test_height); #endif // !OS_CHROMEOS } { int bottom_test_y = kTestSize + string_size.height(); int bottom_test_height = kTestSize; #if defined(OS_WIN) // Windows 8+ draws 1 pixel below the display rect. if (base::win::GetVersion() >= base::win::VERSION_WIN8) { bottom_test_y = kTestSize + string_size.height() + 1; bottom_test_height = kTestSize - 1; } #endif // OS_WIN SCOPED_TRACE("TextDoesntClip Bottom Side"); rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, bottom_test_y, kCanvasSize.width(), bottom_test_height); } { SCOPED_TRACE("TextDoesntClip Left Side"); #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS) // TODO(dschuyler): On Windows, Chrome OS and Mac smoothing draws to the // left of text. This appears to be a preexisting issue that wasn't // revealed by the prior unit tests. rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, kTestSize, kTestSize - 1, string_size.height()); #else rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, kTestSize, kTestSize, string_size.height()); #endif } { SCOPED_TRACE("TextDoesntClip Right Side"); #if !defined(OS_MACOSX) // TODO(dschuyler): On Mac text draws to right of GetStringSize. This // appears to be a preexisting issue that wasn't revealed by the prior // unit tests. rect_buffer.EnsureSolidRect(SK_ColorWHITE, kTestSize + string_size.width(), kTestSize, kTestSize, string_size.height()); #endif } } } #endif // !defined(OS_WIN) // Ensure that the text will clip to the display rect. Draws to a canvas and // checks whether any pixel beyond the bounding rectangle is colored. TEST_P(RenderTextTest, TextDoesClip) { const wchar_t* kTestStrings[] = {L"TEST", L"W", L"WWWW", L"gAXAXWWWW"}; const Size kCanvasSize(300, 50); const int kTestSize = 10; sk_sp surface = SkSurface::MakeRasterN32Premul(kCanvasSize.width(), kCanvasSize.height()); Canvas canvas(sk_ref_sp(surface->getCanvas()), 1.0f); RenderText* render_text = GetRenderText(); render_text->SetHorizontalAlignment(ALIGN_LEFT); render_text->SetColor(SK_ColorBLACK); for (auto* string : kTestStrings) { surface->getCanvas()->clear(SK_ColorWHITE); render_text->SetText(WideToUTF16(string)); const Size string_size = render_text->GetStringSize(); int fake_width = string_size.width() / 2; int fake_height = string_size.height() / 2; render_text->SetDisplayRect( Rect(kTestSize, kTestSize, fake_width, fake_height)); render_text->set_clip_to_display_rect(true); render_text->Draw(&canvas); ASSERT_LT(string_size.width() + kTestSize, kCanvasSize.width()); SkPixmap pixmap; surface->peekPixels(&pixmap); const uint32_t* buffer = static_cast(pixmap.addr()); ASSERT_NE(nullptr, buffer); TestRectangleBuffer rect_buffer(string, buffer, kCanvasSize.width(), kCanvasSize.height()); { SCOPED_TRACE("TextDoesClip Top Side"); rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, 0, kCanvasSize.width(), kTestSize); } { SCOPED_TRACE("TextDoesClip Bottom Side"); rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, kTestSize + fake_height, kCanvasSize.width(), kTestSize); } { SCOPED_TRACE("TextDoesClip Left Side"); rect_buffer.EnsureSolidRect(SK_ColorWHITE, 0, kTestSize, kTestSize, fake_height); } { SCOPED_TRACE("TextDoesClip Right Side"); rect_buffer.EnsureSolidRect(SK_ColorWHITE, kTestSize + fake_width, kTestSize, kTestSize, fake_height); } } } #if defined(OS_MACOSX) TEST_P(RenderTextMacTest, Mac_ElidedText) { RenderTextMac* render_text = GetRenderTextMac(); base::string16 text(ASCIIToUTF16("This is an example.")); render_text->SetText(text); Size string_size = render_text->GetStringSize(); render_text->SetDisplayRect(Rect(string_size)); test_api()->EnsureLayout(); // NOTE: Character and glyph counts are only comparable for simple text. EXPECT_EQ(text.size(), static_cast(CTLineGetGlyphCount(GetCoreTextLine()))); render_text->SetElideBehavior(ELIDE_TAIL); string_size.set_width(string_size.width() / 2); render_text->SetDisplayRect(Rect(string_size)); test_api()->EnsureLayout(); CFIndex glyph_count = CTLineGetGlyphCount(GetCoreTextLine()); EXPECT_GT(text.size(), static_cast(glyph_count)); EXPECT_NE(0, glyph_count); } #endif // defined(OS_MACOSX) // Ensure color changes are picked up by the RenderText implementation. TEST_P(RenderTextTest, ColorChange) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("x")); DrawVisualText(); std::vector text_log; renderer()->GetTextLogAndReset(&text_log); EXPECT_EQ(1u, text_log.size()); EXPECT_EQ(SK_ColorBLACK, text_log[0].color); render_text->SetColor(SK_ColorRED); DrawVisualText(); renderer()->GetTextLogAndReset(&text_log); EXPECT_EQ(1u, text_log.size()); EXPECT_EQ(SK_ColorRED, text_log[0].color); } // Ensure style information propagates to the typeface on the text renderer. TEST_P(RenderTextTest, StylePropagated) { RenderText* render_text = GetRenderText(); // Default-constructed fonts on Mac are system fonts. These can have all kinds // of weird weights and style, which are preserved by PlatformFontMac, but do // not map simply to a SkTypeface::Style (the full details in SkFontStyle is // needed). They also vary depending on the OS version, so set a known font. FontList font_list(Font("Arial", 10)); render_text->SetText(ASCIIToUTF16("x")); render_text->SetFontList(font_list); DrawVisualText(); EXPECT_EQ(SkTypeface::kNormal, GetRendererPaint().getTypeface()->style()); render_text->SetWeight(Font::Weight::BOLD); DrawVisualText(); EXPECT_EQ(SkTypeface::kBold, GetRendererPaint().getTypeface()->style()); render_text->SetStyle(TextStyle::ITALIC, true); DrawVisualText(); EXPECT_EQ(SkTypeface::kBoldItalic, GetRendererPaint().getTypeface()->style()); render_text->SetWeight(Font::Weight::NORMAL); DrawVisualText(); EXPECT_EQ(SkTypeface::kItalic, GetRendererPaint().getTypeface()->style()); } // Ensure the painter adheres to RenderText::subpixel_rendering_suppressed(). TEST_P(RenderTextTest, SubpixelRenderingSuppressed) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("x")); DrawVisualText(); #if defined(OS_LINUX) // On Linux, whether subpixel AA is supported is determined by the platform // FontConfig. Force it into a particular style after computing runs. Other // platforms use a known default FontRenderParams from a static local. GetHarfBuzzRunList()->runs()[0]->render_params.subpixel_rendering = FontRenderParams::SUBPIXEL_RENDERING_RGB; DrawVisualText(); #endif EXPECT_TRUE(GetRendererPaint().isLCDRenderText()); render_text->set_subpixel_rendering_suppressed(true); DrawVisualText(); #if defined(OS_LINUX) // For Linux, runs shouldn't be re-calculated, and the suppression of the // SUBPIXEL_RENDERING_RGB set above should now take effect. But, after // checking, apply the override anyway to be explicit that it is suppressed. EXPECT_FALSE(GetRendererPaint().isLCDRenderText()); GetHarfBuzzRunList()->runs()[0]->render_params.subpixel_rendering = FontRenderParams::SUBPIXEL_RENDERING_RGB; DrawVisualText(); #endif EXPECT_FALSE(GetRendererPaint().isLCDRenderText()); } // Verify GetDecoratedWordAtPoint returns the correct baseline point and // decorated word for an LTR string. TEST_P(RenderTextHarfBuzzTest, GetDecoratedWordAtPoint_LTR) { const base::string16 ltr = ASCIIToUTF16(" ab c "); const int kWordOneStartIndex = 2; const int kWordTwoStartIndex = 6; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(100, 30)); render_text->SetText(ltr); render_text->ApplyWeight(Font::Weight::SEMIBOLD, Range(0, 3)); render_text->ApplyStyle(UNDERLINE, true, Range(1, 5)); render_text->ApplyStyle(ITALIC, true, Range(3, 8)); render_text->ApplyStyle(DIAGONAL_STRIKE, true, Range(5, 7)); render_text->ApplyStyle(STRIKE, true, Range(1, 7)); const std::vector font_spans = render_text->GetFontSpansForTesting(); // Create expected decorated text instances. DecoratedText expected_word_1; expected_word_1.text = ASCIIToUTF16("ab"); // Attributes for the characters 'a' and 'b' at logical indices 2 and 3 // respectively. expected_word_1.attributes.push_back(CreateRangedAttribute( font_spans, 0, kWordOneStartIndex, Font::Weight::SEMIBOLD, UNDERLINE_MASK | STRIKE_MASK)); expected_word_1.attributes.push_back(CreateRangedAttribute( font_spans, 1, kWordOneStartIndex + 1, Font::Weight::NORMAL, UNDERLINE_MASK | ITALIC_MASK | STRIKE_MASK)); const Rect left_glyph_word_1 = render_text->GetCursorBounds( SelectionModel(kWordOneStartIndex, CURSOR_FORWARD), false); DecoratedText expected_word_2; expected_word_2.text = ASCIIToUTF16("c"); // Attributes for character 'c' at logical index |kWordTwoStartIndex|. expected_word_2.attributes.push_back(CreateRangedAttribute( font_spans, 0, kWordTwoStartIndex, Font::Weight::NORMAL, ITALIC_MASK | DIAGONAL_STRIKE_MASK | STRIKE_MASK)); const Rect left_glyph_word_2 = render_text->GetCursorBounds( SelectionModel(kWordTwoStartIndex, CURSOR_FORWARD), false); DecoratedText decorated_word; Point baseline_point; { SCOPED_TRACE(base::StringPrintf("Query to the left of text bounds")); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint( Point(-5, 5), &decorated_word, &baseline_point)); VerifyDecoratedWordsAreEqual(expected_word_1, decorated_word); EXPECT_TRUE(left_glyph_word_1.Contains(baseline_point)); } { SCOPED_TRACE(base::StringPrintf("Query to the right of text bounds")); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint( Point(105, 5), &decorated_word, &baseline_point)); VerifyDecoratedWordsAreEqual(expected_word_2, decorated_word); EXPECT_TRUE(left_glyph_word_2.Contains(baseline_point)); } for (size_t i = 0; i < render_text->text().length(); i++) { SCOPED_TRACE(base::StringPrintf("Case[%" PRIuS "]", i)); // Query the decorated word using the origin of the i'th glyph's bounds. const Point query = render_text->GetCursorBounds(SelectionModel(i, CURSOR_FORWARD), false) .origin(); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint(query, &decorated_word, &baseline_point)); if (i < kWordTwoStartIndex) { VerifyDecoratedWordsAreEqual(expected_word_1, decorated_word); EXPECT_TRUE(left_glyph_word_1.Contains(baseline_point)); } else { VerifyDecoratedWordsAreEqual(expected_word_2, decorated_word); EXPECT_TRUE(left_glyph_word_2.Contains(baseline_point)); } } } // Verify GetDecoratedWordAtPoint returns the correct baseline point and // decorated word for an RTL string. TEST_P(RenderTextHarfBuzzTest, GetDecoratedWordAtPoint_RTL) { const base::string16 rtl = WideToUTF16( L" " L"\x0634\x0632" L" " L"\x0634"); const int kWordOneStartIndex = 1; const int kWordTwoStartIndex = 5; RenderText* render_text = GetRenderText(); render_text->SetDisplayRect(Rect(100, 30)); render_text->SetText(rtl); render_text->ApplyWeight(Font::Weight::SEMIBOLD, Range(2, 3)); render_text->ApplyStyle(UNDERLINE, true, Range(3, 6)); render_text->ApplyStyle(ITALIC, true, Range(0, 3)); render_text->ApplyStyle(DIAGONAL_STRIKE, true, Range(0, 2)); render_text->ApplyStyle(STRIKE, true, Range(2, 5)); const std::vector font_spans = render_text->GetFontSpansForTesting(); // Create expected decorated text instance. DecoratedText expected_word_1; expected_word_1.text = WideToUTF16(L"\x0634\x0632"); // Attributes for characters at logical indices 1 and 2. expected_word_1.attributes.push_back(CreateRangedAttribute( font_spans, 0, kWordOneStartIndex, Font::Weight::NORMAL, ITALIC_MASK | DIAGONAL_STRIKE_MASK)); expected_word_1.attributes.push_back( CreateRangedAttribute(font_spans, 1, kWordOneStartIndex + 1, Font::Weight::SEMIBOLD, ITALIC_MASK | STRIKE_MASK)); // The leftmost glyph is the one at logical index 2. const Rect left_glyph_word_1 = render_text->GetCursorBounds( SelectionModel(kWordOneStartIndex + 1, CURSOR_FORWARD), false); DecoratedText expected_word_2; expected_word_2.text = WideToUTF16(L"\x0634"); // Attributes for character at logical index |kWordTwoStartIndex|. expected_word_2.attributes.push_back(CreateRangedAttribute( font_spans, 0, kWordTwoStartIndex, Font::Weight::NORMAL, UNDERLINE_MASK)); const Rect left_glyph_word_2 = render_text->GetCursorBounds( SelectionModel(kWordTwoStartIndex, CURSOR_FORWARD), false); DecoratedText decorated_word; Point baseline_point; { SCOPED_TRACE(base::StringPrintf("Query to the left of text bounds")); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint( Point(-5, 5), &decorated_word, &baseline_point)); VerifyDecoratedWordsAreEqual(expected_word_2, decorated_word); EXPECT_TRUE(left_glyph_word_2.Contains(baseline_point)); } { SCOPED_TRACE(base::StringPrintf("Query to the right of text bounds")); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint( Point(105, 5), &decorated_word, &baseline_point)); VerifyDecoratedWordsAreEqual(expected_word_1, decorated_word); EXPECT_TRUE(left_glyph_word_1.Contains(baseline_point)); } for (size_t i = 0; i < render_text->text().length(); i++) { SCOPED_TRACE(base::StringPrintf("Case[%" PRIuS "]", i)); // Query the decorated word using the top right point of the i'th glyph's // bounds. const Point query = render_text->GetCursorBounds(SelectionModel(i, CURSOR_FORWARD), false) .top_right(); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint(query, &decorated_word, &baseline_point)); if (i < kWordTwoStartIndex) { VerifyDecoratedWordsAreEqual(expected_word_1, decorated_word); EXPECT_TRUE(left_glyph_word_1.Contains(baseline_point)); } else { VerifyDecoratedWordsAreEqual(expected_word_2, decorated_word); EXPECT_TRUE(left_glyph_word_2.Contains(baseline_point)); } } } // Verify the boolean return value of GetDecoratedWordAtPoint. TEST_P(RenderTextHarfBuzzTest, GetDecoratedWordAtPoint_Return) { RenderText* render_text = GetRenderText(); render_text->SetText(ASCIIToUTF16("...")); DecoratedText decorated_word; Point baseline_point; // False should be returned, when the text does not contain any word. Point query = render_text->GetCursorBounds(SelectionModel(0, CURSOR_FORWARD), false) .origin(); EXPECT_FALSE(render_text->GetDecoratedWordAtPoint(query, &decorated_word, &baseline_point)); render_text->SetText(ASCIIToUTF16("abc")); query = render_text->GetCursorBounds(SelectionModel(0, CURSOR_FORWARD), false) .origin(); EXPECT_TRUE(render_text->GetDecoratedWordAtPoint(query, &decorated_word, &baseline_point)); // False should be returned for obscured text. render_text->SetObscured(true); query = render_text->GetCursorBounds(SelectionModel(0, CURSOR_FORWARD), false) .origin(); EXPECT_FALSE(render_text->GetDecoratedWordAtPoint(query, &decorated_word, &baseline_point)); } // Prefix for test instantiations intentionally left blank since each test // fixture class has a single parameterization. #if defined(OS_MACOSX) INSTANTIATE_TEST_CASE_P(, RenderTextTest, ::testing::Values(RENDER_TEXT_HARFBUZZ, RENDER_TEXT_MAC), PrintRenderTextBackend()); INSTANTIATE_TEST_CASE_P(, RenderTextMacTest, ::testing::Values(RENDER_TEXT_MAC), PrintRenderTextBackend()); #else INSTANTIATE_TEST_CASE_P(, RenderTextTest, ::testing::Values(RENDER_TEXT_HARFBUZZ), PrintRenderTextBackend()); #endif INSTANTIATE_TEST_CASE_P(, RenderTextHarfBuzzTest, ::testing::Values(RENDER_TEXT_HARFBUZZ), PrintRenderTextBackend()); } // namespace gfx