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Unified Diff: ui/gfx/render_text_unittest.cc

Issue 854713003: More old files deletion. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Fix tryjobs? Created 5 years, 11 months ago
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Index: ui/gfx/render_text_unittest.cc
diff --git a/ui/gfx/render_text_unittest.cc b/ui/gfx/render_text_unittest.cc
deleted file mode 100644
index 10a0a90b45ddd98269d27f387df9856bc368acfa..0000000000000000000000000000000000000000
--- a/ui/gfx/render_text_unittest.cc
+++ /dev/null
@@ -1,2327 +0,0 @@
-// 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 <algorithm>
-
-#include "base/format_macros.h"
-#include "base/i18n/break_iterator.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/break_list.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/render_text_harfbuzz.h"
-
-#if defined(OS_WIN)
-#include "base/win/windows_version.h"
-#include "ui/gfx/render_text_win.h"
-#endif
-
-#if defined(OS_LINUX) && !defined(USE_OZONE)
-#include "ui/gfx/render_text_pango.h"
-#endif
-
-using base::ASCIIToUTF16;
-using base::UTF8ToUTF16;
-using base::WideToUTF16;
-
-namespace gfx {
-
-namespace {
-
-// 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";
-#if !defined(OS_MACOSX)
-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";
-#endif
-
-// 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());
-}
-
-#if !defined(OS_MACOSX)
-// Ensure cursor movement in the specified |direction| yields |expected| values.
-void RunMoveCursorLeftRightTest(RenderText* render_text,
- const std::vector<SelectionModel>& 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<int>(i)));
- EXPECT_EQ(expected[i], render_text->selection_model());
- render_text->MoveCursor(CHARACTER_BREAK, direction, false);
- }
- // 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, false);
- EXPECT_EQ(expected.back(), render_text->selection_model());
-}
-#endif // !defined(OS_MACOSX)
-
-} // namespace
-
-class RenderTextTest : public testing::Test {
-};
-
-TEST_F(RenderTextTest, DefaultStyle) {
- // Check the default styles applied to new instances and adjusted text.
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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(render_text->colors().EqualsValueForTesting(SK_ColorBLACK));
- for (size_t style = 0; style < NUM_TEXT_STYLES; ++style)
- EXPECT_TRUE(render_text->styles()[style].EqualsValueForTesting(false));
- render_text->SetText(WideToUTF16(cases[i]));
- }
-}
-
-TEST_F(RenderTextTest, SetColorAndStyle) {
- // Ensure custom default styles persist across setting and clearing text.
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- const SkColor color = SK_ColorRED;
- render_text->SetColor(color);
- render_text->SetStyle(BOLD, true);
- 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(render_text->colors().EqualsValueForTesting(color));
- EXPECT_TRUE(render_text->styles()[BOLD].EqualsValueForTesting(true));
- EXPECT_TRUE(render_text->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(render_text->styles()[STRIKE].EqualsValueForTesting(true));
- }
-}
-
-TEST_F(RenderTextTest, ApplyColorAndStyle) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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->ApplyStyle(BOLD, true, Range(2, 5));
- std::vector<std::pair<size_t, SkColor> > expected_color;
- expected_color.push_back(std::pair<size_t, SkColor>(0, SK_ColorBLACK));
- expected_color.push_back(std::pair<size_t, SkColor>(1, SK_ColorRED));
- expected_color.push_back(std::pair<size_t, SkColor>(4, SK_ColorBLACK));
- EXPECT_TRUE(render_text->colors().EqualsForTesting(expected_color));
- std::vector<std::pair<size_t, bool> > expected_style;
- expected_style.push_back(std::pair<size_t, bool>(0, false));
- expected_style.push_back(std::pair<size_t, bool>(2, true));
- expected_style.push_back(std::pair<size_t, bool>(5, false));
- EXPECT_TRUE(render_text->styles()[BOLD].EqualsForTesting(expected_style));
-
- // Ensure setting a color and style overrides the ranged colors and styles.
- render_text->SetColor(SK_ColorBLUE);
- EXPECT_TRUE(render_text->colors().EqualsValueForTesting(SK_ColorBLUE));
- render_text->SetStyle(BOLD, false);
- EXPECT_TRUE(render_text->styles()[BOLD].EqualsValueForTesting(false));
-
- // Apply a color and style 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->ApplyStyle(BOLD, true, Range(2, text_length));
- std::vector<std::pair<size_t, SkColor> > expected_color_end;
- expected_color_end.push_back(std::pair<size_t, SkColor>(0, SK_ColorRED));
- EXPECT_TRUE(render_text->colors().EqualsForTesting(expected_color_end));
- std::vector<std::pair<size_t, bool> > expected_style_end;
- expected_style_end.push_back(std::pair<size_t, bool>(0, false));
- expected_style_end.push_back(std::pair<size_t, bool>(2, true));
- EXPECT_TRUE(render_text->styles()[BOLD].EqualsForTesting(expected_style_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<std::pair<size_t, bool> > expected_italic;
- expected_italic.push_back(std::pair<size_t, bool>(0, true));
- expected_italic.push_back(std::pair<size_t, bool>(2, false));
- expected_italic.push_back(std::pair<size_t, bool>(3, true));
- expected_italic.push_back(std::pair<size_t, bool>(6, false));
- expected_italic.push_back(std::pair<size_t, bool>(7, true));
- EXPECT_TRUE(render_text->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(render_text->styles()[ITALIC].EqualsForTesting(expected_italic));
- render_text->ApplyStyle(ITALIC, false, Range(2, 4));
- render_text->SetText(ASCIIToUTF16("012345678"));
- EXPECT_TRUE(render_text->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(render_text->styles()[ITALIC].EqualsForTesting(expected_italic));
- render_text->ApplyStyle(ITALIC, true, Range(2, 4));
- render_text->SetText(ASCIIToUTF16("012345678"));
- EXPECT_TRUE(render_text->styles()[ITALIC].EqualsForTesting(expected_italic));
-
- // TODO(tmoniuszko): Enable when RenderTextMac::IsValidCursorIndex is
- // implemented.
-#if !defined(OS_MACOSX)
- // 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<std::pair<size_t, bool> > expected_underline;
- expected_underline.push_back(std::pair<size_t, bool>(0, false));
- expected_underline.push_back(std::pair<size_t, bool>(1, true));
- expected_underline.push_back(std::pair<size_t, bool>(6, false));
- EXPECT_TRUE(render_text->styles()[UNDERLINE].EqualsForTesting(
- expected_underline));
-#endif // OS_MACOSX
-}
-
-#if defined(OS_LINUX) && !defined(USE_OZONE)
-TEST_F(RenderTextTest, PangoAttributes) {
- scoped_ptr<RenderText> render_text(RenderText::CreateNativeInstance());
- render_text->SetText(ASCIIToUTF16("012345678"));
-
- // Apply ranged BOLD/ITALIC styles and check the resulting Pango attributes.
- render_text->ApplyStyle(BOLD, true, Range(2, 4));
- render_text->ApplyStyle(ITALIC, true, Range(1, 3));
-
- struct {
- int start;
- int end;
- bool bold;
- bool italic;
- } cases[] = {
- { 0, 1, false, false },
- { 1, 2, false, true },
- { 2, 3, true, true },
- { 3, 4, true, false },
- { 4, INT_MAX, false, false },
- };
-
- int start = 0, end = 0;
- RenderTextPango* rt_linux = static_cast<RenderTextPango*>(render_text.get());
- rt_linux->EnsureLayout();
- PangoAttrList* attributes = pango_layout_get_attributes(rt_linux->layout_);
- PangoAttrIterator* iter = pango_attr_list_get_iterator(attributes);
- for (size_t i = 0; i < arraysize(cases); ++i) {
- pango_attr_iterator_range(iter, &start, &end);
- EXPECT_EQ(cases[i].start, start);
- EXPECT_EQ(cases[i].end, end);
- PangoFontDescription* font = pango_font_description_new();
- pango_attr_iterator_get_font(iter, font, NULL, NULL);
- char* description_string = pango_font_description_to_string(font);
- const base::string16 desc = ASCIIToUTF16(description_string);
- const bool bold = desc.find(ASCIIToUTF16("Bold")) != std::string::npos;
- EXPECT_EQ(cases[i].bold, bold);
- const bool italic = desc.find(ASCIIToUTF16("Italic")) != std::string::npos;
- EXPECT_EQ(cases[i].italic, italic);
- pango_attr_iterator_next(iter);
- pango_font_description_free(font);
- g_free(description_string);
- }
- EXPECT_FALSE(pango_attr_iterator_next(iter));
- pango_attr_iterator_destroy(iter);
-}
-#endif
-
-// TODO(asvitkine): Cursor movements tests disabled on Mac because RenderTextMac
-// does not implement this yet. http://crbug.com/131618
-#if !defined(OS_MACOSX)
-void TestVisualCursorMotionInObscuredField(RenderText* render_text,
- const base::string16& text,
- bool select) {
- ASSERT_TRUE(render_text->obscured());
- render_text->SetText(text);
- int len = text.length();
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, select);
- EXPECT_EQ(SelectionModel(Range(select ? 0 : len, len), CURSOR_FORWARD),
- render_text->selection_model());
- render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, select);
- EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model());
- for (int j = 1; j <= len; ++j) {
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, select);
- 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, select);
- EXPECT_EQ(SelectionModel(Range(select ? 0 : j, j), CURSOR_FORWARD),
- render_text->selection_model());
- }
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, select);
- EXPECT_EQ(SelectionModel(Range(select ? 0 : len, len), CURSOR_FORWARD),
- render_text->selection_model());
- render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, select);
- EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model());
-}
-
-TEST_F(RenderTextTest, ObscuredText) {
- const base::string16 seuss = ASCIIToUTF16("hop on pop");
- const base::string16 no_seuss = ASCIIToUTF16("**********");
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- // GetLayoutText() returns asterisks 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->GetLayoutText());
- render_text->SetObscured(false);
- EXPECT_EQ(seuss, render_text->text());
- EXPECT_EQ(seuss, render_text->GetLayoutText());
-
- 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(ASCIIToUTF16("**"), render_text->GetLayoutText());
- const base::char16 valid_surrogates[] = {0xD800, 0xDC00, 0};
- render_text->SetText(valid_surrogates);
- EXPECT_EQ(ASCIIToUTF16("*"), render_text->GetLayoutText());
- EXPECT_EQ(0U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(2U, render_text->cursor_position());
-
- // Test index conversion and cursor validity with a valid surrogate pair.
- EXPECT_EQ(0U, render_text->TextIndexToLayoutIndex(0U));
- EXPECT_EQ(1U, render_text->TextIndexToLayoutIndex(1U));
- EXPECT_EQ(1U, render_text->TextIndexToLayoutIndex(2U));
- EXPECT_EQ(0U, render_text->LayoutIndexToTextIndex(0U));
- EXPECT_EQ(2U, render_text->LayoutIndexToTextIndex(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<int>(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.get(), text, false);
- TestVisualCursorMotionInObscuredField(render_text.get(), text, true);
- }
-}
-
-TEST_F(RenderTextTest, RevealObscuredText) {
- const base::string16 seuss = ASCIIToUTF16("hop on pop");
- const base::string16 no_seuss = ASCIIToUTF16("**********");
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- render_text->SetText(seuss);
- render_text->SetObscured(true);
- EXPECT_EQ(seuss, render_text->text());
- EXPECT_EQ(no_seuss, render_text->GetLayoutText());
-
- // Valid reveal index and new revealed index clears previous one.
- render_text->RenderText::SetObscuredRevealIndex(0);
- EXPECT_EQ(ASCIIToUTF16("h*********"), render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(1);
- EXPECT_EQ(ASCIIToUTF16("*o********"), render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(2);
- EXPECT_EQ(ASCIIToUTF16("**p*******"), render_text->GetLayoutText());
-
- // Invalid reveal index.
- render_text->RenderText::SetObscuredRevealIndex(-1);
- EXPECT_EQ(no_seuss, render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(seuss.length() + 1);
- EXPECT_EQ(no_seuss, render_text->GetLayoutText());
-
- // SetObscured clears the revealed index.
- render_text->RenderText::SetObscuredRevealIndex(0);
- EXPECT_EQ(ASCIIToUTF16("h*********"), render_text->GetLayoutText());
- render_text->SetObscured(false);
- EXPECT_EQ(seuss, render_text->GetLayoutText());
- render_text->SetObscured(true);
- EXPECT_EQ(no_seuss, render_text->GetLayoutText());
-
- // SetText clears the revealed index.
- render_text->SetText(ASCIIToUTF16("new"));
- EXPECT_EQ(ASCIIToUTF16("***"), render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(2);
- EXPECT_EQ(ASCIIToUTF16("**w"), render_text->GetLayoutText());
- render_text->SetText(ASCIIToUTF16("new longer"));
- EXPECT_EQ(ASCIIToUTF16("**********"), render_text->GetLayoutText());
-
- // Text with invalid surrogates.
- const base::char16 invalid_surrogates[] = {0xDC00, 0xD800, 'h', 'o', 'p', 0};
- render_text->SetText(invalid_surrogates);
- EXPECT_EQ(ASCIIToUTF16("*****"), render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(0);
- const base::char16 invalid_expect_0[] = {0xDC00, '*', '*', '*', '*', 0};
- EXPECT_EQ(invalid_expect_0, render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(1);
- const base::char16 invalid_expect_1[] = {'*', 0xD800, '*', '*', '*', 0};
- EXPECT_EQ(invalid_expect_1, render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(2);
- EXPECT_EQ(ASCIIToUTF16("**h**"), render_text->GetLayoutText());
-
- // 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(ASCIIToUTF16("*****"), render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(0);
- const base::char16 valid_expect_0_and_1[] =
- {0xD800, 0xDC00, '*', '*', '*', '*', 0};
- EXPECT_EQ(valid_expect_0_and_1, render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(1);
- EXPECT_EQ(valid_expect_0_and_1, render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(2);
- EXPECT_EQ(ASCIIToUTF16("*h***"), render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(5);
- const base::char16 valid_expect_5_and_6[] =
- {'*', '*', '*', '*', 0xD800, 0xDC00, 0};
- EXPECT_EQ(valid_expect_5_and_6, render_text->GetLayoutText());
- render_text->RenderText::SetObscuredRevealIndex(6);
- EXPECT_EQ(valid_expect_5_and_6, render_text->GetLayoutText());
-}
-
-TEST_F(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* layout_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 },
- // Complex script is not handled. In this example, the "\x0915\x093f" is a
- // compound glyph, but only half of it is elided.
- { L"0123\x0915\x093f", L"0123\x0915\x2026", true },
- // Surrogate pairs should be elided reasonably enough.
- { L"0\x05e9\x05bc\x05c1\x05b8", L"0\x05e9\x05bc\x05c1\x05b8", false },
- { L"0\x05e9\x05bc\x05c1\x05b8", L"0\x05e9\x05bc\x2026" , true },
- { L"01\x05e9\x05bc\x05c1\x05b8", L"01\x05e9\x2026" , true },
- { L"012\x05e9\x05bc\x05c1\x05b8", L"012\x2026\x200E" , true },
- { L"012\xF0\x9D\x84\x9E", L"012\xF0\x2026" , true },
- };
-
- scoped_ptr<RenderText> expected_render_text(RenderText::CreateInstance());
- expected_render_text->SetFontList(FontList("serif, Sans serif, 12px"));
- expected_render_text->SetDisplayRect(Rect(0, 0, 9999, 100));
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetFontList(FontList("serif, Sans serif, 12px"));
- render_text->SetElideBehavior(ELIDE_TAIL);
-
- for (size_t i = 0; i < arraysize(cases); i++) {
- // Compute expected width
- expected_render_text->SetText(WideToUTF16(cases[i].layout_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 layout_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())
- << "->For case " << i << ": " << cases[i].text << "\n";
- EXPECT_EQ(WideToUTF16(cases[i].layout_text), render_text->GetLayoutText())
- << "->For case " << i << ": " << cases[i].text << "\n";
- expected_render_text->SetText(base::string16());
- }
-}
-
-TEST_F(RenderTextTest, ElidedObscuredText) {
- scoped_ptr<RenderText> expected_render_text(RenderText::CreateInstance());
- 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"));
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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->GetLayoutText());
-}
-
-TEST_F(RenderTextTest, TruncatedText) {
- struct {
- const wchar_t* text;
- const wchar_t* layout_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" },
- };
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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].layout_text), render_text->GetLayoutText())
- << "For case " << i << ": " << cases[i].text;
- }
-}
-
-TEST_F(RenderTextTest, TruncatedObscuredText) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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(WideToUTF16(L"**\x2026"), render_text->GetLayoutText());
-}
-
-TEST_F(RenderTextTest, TruncatedCursorMovementLTR) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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, false);
- EXPECT_EQ(SelectionModel(4, CURSOR_FORWARD), render_text->selection_model());
- render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model());
-
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_LEFT);
-}
-
-TEST_F(RenderTextTest, TruncatedCursorMovementRTL) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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, false);
- EXPECT_EQ(SelectionModel(4, CURSOR_FORWARD), render_text->selection_model());
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(SelectionModel(0, CURSOR_BACKWARD), render_text->selection_model());
-
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_RIGHT);
-}
-
-TEST_F(RenderTextTest, GetTextDirection) {
- 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 },
- };
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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->GetTextDirection(), cases[j].text_direction);
- render_text->SetDirectionalityMode(DIRECTIONALITY_FROM_UI);
- EXPECT_EQ(render_text->GetTextDirection(), ui_direction);
- render_text->SetDirectionalityMode(DIRECTIONALITY_FORCE_LTR);
- EXPECT_EQ(render_text->GetTextDirection(), base::i18n::LEFT_TO_RIGHT);
- render_text->SetDirectionalityMode(DIRECTIONALITY_FORCE_RTL);
- EXPECT_EQ(render_text->GetTextDirection(), 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->GetTextDirection(), base::i18n::LEFT_TO_RIGHT);
- render_text->SetText(WideToUTF16(kRtl));
- EXPECT_EQ(render_text->GetTextDirection(), base::i18n::RIGHT_TO_LEFT);
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightInLtr) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- // Pure LTR.
- render_text->SetText(ASCIIToUTF16("abc"));
- // |expected| saves the expected SelectionModel when moving cursor from left
- // to right.
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_LEFT);
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightInLtrRtl) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- // LTR-RTL
- render_text->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2"));
- // The last one is the expected END position.
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_LEFT);
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightInLtrRtlLtr) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- // LTR-RTL-LTR.
- render_text->SetText(WideToUTF16(L"a" L"\x05d1" L"b"));
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_LEFT);
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightInRtl) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- // Pure RTL.
- render_text->SetText(WideToUTF16(L"\x05d0\x05d1\x05d2"));
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, false);
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_RIGHT);
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightInRtlLtr) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- // RTL-LTR
- render_text->SetText(WideToUTF16(L"\x05d0\x05d1\x05d2" L"abc"));
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, false);
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_RIGHT);
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightInRtlLtrRtl) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- // RTL-LTR-RTL.
- render_text->SetText(WideToUTF16(L"\x05d0" L"a" L"\x05d1"));
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, false);
- std::vector<SelectionModel> 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.get(), 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.get(), expected, CURSOR_RIGHT);
-}
-
-// TODO(xji): temporarily disable in platform Win since the complex script
-// characters turned into empty square due to font regression. So, not able
-// to test 2 characters belong to the same grapheme.
-#if defined(OS_LINUX)
-TEST_F(RenderTextTest, MoveCursorLeftRight_ComplexScript) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- render_text->SetText(WideToUTF16(L"\x0915\x093f\x0915\x094d\x0915"));
- EXPECT_EQ(0U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(2U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(4U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(5U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(5U, render_text->cursor_position());
-
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(4U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(2U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(0U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(0U, render_text->cursor_position());
-}
-#endif
-
-// TODO(ckocagil): Enable for RenderTextHarfBuzz. http://crbug.com/383265
-TEST_F(RenderTextTest, MoveCursorLeftRight_MeiryoUILigatures) {
- scoped_ptr<RenderText> render_text(RenderText::CreateNativeInstance());
- // 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, false);
- EXPECT_EQ(i + 1, render_text->cursor_position());
- }
- EXPECT_EQ(6U, render_text->cursor_position());
-}
-
-TEST_F(RenderTextTest, 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
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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));
- }
-}
-
-TEST_F(RenderTextTest, 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 };
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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));
-#if !defined(OS_MACOSX)
- EXPECT_FALSE(render_text->IsValidCursorIndex(1));
-#endif
- 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, false);
- EXPECT_EQ(0U, render_text->cursor_position());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(2U, render_text->cursor_position());
- }
-}
-
-TEST_F(RenderTextTest, FindCursorPosition) {
- const wchar_t* kTestStrings[] = { kLtrRtl, kLtrRtlLtr, kRtlLtr, kRtlLtrRtl };
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(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
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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 =
- render_text->EdgeSelectionModel(ltr ? CURSOR_LEFT : CURSOR_RIGHT);
- EXPECT_EQ(start_edge, SelectionModel(0, CURSOR_BACKWARD));
-
- SelectionModel end_edge =
- render_text->EdgeSelectionModel(ltr ? CURSOR_RIGHT : CURSOR_LEFT);
- EXPECT_EQ(end_edge, SelectionModel(cases[i].text.length(), CURSOR_FORWARD));
- }
-}
-
-TEST_F(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.
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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());
-}
-
-TEST_F(RenderTextTest, MoveCursorLeftRightWithSelection) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2"));
- // Left arrow on select ranging (6, 4).
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(6), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(Range(4), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(Range(5), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(Range(6), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, true);
- EXPECT_EQ(Range(6, 5), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, true);
- EXPECT_EQ(Range(6, 4), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(Range(6), render_text->selection());
-
- // Right arrow on select ranging (4, 6).
- render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(Range(0), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(1), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(2), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(3), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(5), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(4), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, true);
- EXPECT_EQ(Range(4, 5), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_LEFT, true);
- EXPECT_EQ(Range(4, 6), render_text->selection());
- render_text->MoveCursor(CHARACTER_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(Range(4), render_text->selection());
-}
-
-TEST_F(RenderTextTest, CenteredDisplayOffset) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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());
-
- // 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());
-}
-#endif // !defined(OS_MACOSX)
-
-// TODO(xji): Make these work on Windows.
-#if defined(OS_LINUX)
-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, false);
- 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, false);
- 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, false);
- 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, false);
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(end, render_text->selection_model());
- }
- }
-
- // Test moving by word from right to left.
- render_text->MoveCursor(LINE_BREAK, CURSOR_RIGHT, false);
- first_word = true;
- while (true) {
- SelectionModel start = render_text->selection_model();
- render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, false);
- 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, false);
- 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, false);
- render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(end, render_text->selection_model());
- }
- }
-}
-
-TEST_F(RenderTextTest, MoveLeftRightByWordInBidiText) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- // For testing simplicity, each word is a 3-character word.
- std::vector<const wchar_t*> 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.get(), test[i]);
-}
-
-TEST_F(RenderTextTest, MoveLeftRightByWordInBidiText_TestEndOfText) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- 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, false);
- render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, false);
- // 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, false);
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- 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, false);
- render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, false);
- 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, false);
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- // EXPECT_EQ(SelectionModel(), render_text->selection_model());
-}
-
-TEST_F(RenderTextTest, MoveLeftRightByWordInTextWithMultiSpaces) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetText(WideToUTF16(L"abc def"));
- render_text->MoveCursorTo(SelectionModel(5, CURSOR_FORWARD));
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(11U, render_text->cursor_position());
-
- render_text->MoveCursorTo(SelectionModel(5, CURSOR_FORWARD));
- render_text->MoveCursor(WORD_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(0U, render_text->cursor_position());
-}
-
-TEST_F(RenderTextTest, MoveLeftRightByWordInChineseText) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetText(WideToUTF16(L"\x6211\x4EEC\x53BB\x516C\x56ED\x73A9"));
- render_text->MoveCursor(LINE_BREAK, CURSOR_LEFT, false);
- EXPECT_EQ(0U, render_text->cursor_position());
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(2U, render_text->cursor_position());
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(3U, render_text->cursor_position());
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(5U, render_text->cursor_position());
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(6U, render_text->cursor_position());
- render_text->MoveCursor(WORD_BREAK, CURSOR_RIGHT, false);
- EXPECT_EQ(6U, render_text->cursor_position());
-}
-#endif
-
-// TODO(ckocagil): Remove when RenderTextWin goes away.
-#if defined(OS_WIN)
-TEST_F(RenderTextTest, Win_LogicalClusters) {
- scoped_ptr<RenderTextWin> render_text(
- static_cast<RenderTextWin*>(RenderText::CreateNativeInstance()));
-
- const base::string16 test_string =
- WideToUTF16(L"\x0930\x0930\x0930\x0930\x0930");
- render_text->SetText(test_string);
- render_text->EnsureLayout();
- ASSERT_EQ(1U, render_text->runs_.size());
- WORD* logical_clusters = render_text->runs_[0]->logical_clusters.get();
- for (size_t i = 0; i < test_string.length(); ++i)
- EXPECT_EQ(i, logical_clusters[i]);
-}
-#endif // defined(OS_WIN)
-
-TEST_F(RenderTextTest, StringSizeSanity) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(RenderTextTest, StringSizeLongStrings) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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;
- }
-}
-
-// TODO(asvitkine): This test fails because PlatformFontMac uses point font
-// sizes instead of pixel sizes like other implementations.
-#if !defined(OS_MACOSX)
-TEST_F(RenderTextTest, StringSizeEmptyString) {
- // Ascent and descent of Arial and Symbol are different on most platforms.
- const FontList font_list("Arial,Symbol, 16px");
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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());
-}
-#endif // !defined(OS_MACOSX)
-
-TEST_F(RenderTextTest, StringSizeRespectsFontListMetrics) {
- // Check that Arial and Symbol have different font metrics.
- Font arial_font("Arial", 16);
- ASSERT_EQ("arial",
- base::StringToLowerASCII(arial_font.GetActualFontNameForTesting()));
- Font symbol_font("Symbol", 16);
- ASSERT_EQ("symbol",
- base::StringToLowerASCII(
- symbol_font.GetActualFontNameForTesting()));
- EXPECT_NE(arial_font.GetHeight(), symbol_font.GetHeight());
- EXPECT_NE(arial_font.GetBaseline(), symbol_font.GetBaseline());
- // "a" should be rendered with Arial, not with Symbol.
- const char* arial_font_text = "a";
- // "®" (registered trademark symbol) should be rendered with Symbol,
- // not with Arial.
- const char* symbol_font_text = "\xC2\xAE";
-
- Font smaller_font = arial_font;
- Font larger_font = symbol_font;
- const char* smaller_font_text = arial_font_text;
- const char* larger_font_text = symbol_font_text;
- if (symbol_font.GetHeight() < arial_font.GetHeight() &&
- symbol_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.
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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());
-
- // 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<Font> 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_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_F(RenderTextTest, SetFontList) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetFontList(FontList("Arial,Symbol, 13px"));
- const std::vector<Font>& fonts = render_text->font_list().GetFonts();
- ASSERT_EQ(2U, fonts.size());
- EXPECT_EQ("Arial", fonts[0].GetFontName());
- EXPECT_EQ("Symbol", fonts[1].GetFontName());
- EXPECT_EQ(13, render_text->font_list().GetFontSize());
-}
-
-TEST_F(RenderTextTest, StringSizeBoldWidth) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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->SetStyle(BOLD, true);
- const int bold_width = render_text->GetStringSize().width();
- EXPECT_GT(bold_width, plain_width);
-
- // Now, apply a plain style over the first word only.
- render_text->ApplyStyle(BOLD, false, 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);
-}
-
-TEST_F(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++) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(RenderTextTest, GetBaselineSanity) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetText(UTF8ToUTF16("Hello World"));
- const int baseline = render_text->GetBaseline();
- EXPECT_GT(baseline, 0);
-}
-
-TEST_F(RenderTextTest, CursorBoundsInReplacementMode) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(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);
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(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);
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(RenderTextTest, SetDisplayOffset) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(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") },
- };
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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<RenderText::FontSpan> 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_F(RenderTextTest, CaretWidth) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->SetText(ASCIIToUTF16("abcdefg"));
- EXPECT_GE(render_text->GetUpdatedCursorBounds().width(), 1);
-}
-
-TEST_F(RenderTextTest, SelectWord) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(RenderTextTest, LastWordSelected) {
- const std::string kTestURL1 = "http://www.google.com";
- const std::string kTestURL2 = "http://www.google.com/something/";
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- render_text->SetText(ASCIIToUTF16(kTestURL1));
- render_text->SetCursorPosition(kTestURL1.length());
- render_text->SelectWord();
- EXPECT_EQ(ASCIIToUTF16("com"), GetSelectedText(render_text.get()));
- 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.get()));
- EXPECT_FALSE(render_text->selection().is_reversed());
-}
-
-// When given a non-empty selection, SelectWord should expand the selection to
-// nearest word boundaries.
-TEST_F(RenderTextTest, SelectMultipleWords) {
- const std::string kTestURL = "http://www.google.com";
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- render_text->SetText(ASCIIToUTF16(kTestURL));
- render_text->SelectRange(Range(16, 20));
- render_text->SelectWord();
- EXPECT_EQ(ASCIIToUTF16("google.com"), GetSelectedText(render_text.get()));
- 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.get()));
- EXPECT_TRUE(render_text->selection().is_reversed());
-}
-
-// TODO(asvitkine): Cursor movements tests disabled on Mac because RenderTextMac
-// does not implement this yet. http://crbug.com/131618
-#if !defined(OS_MACOSX)
-TEST_F(RenderTextTest, DisplayRectShowsCursorLTR) {
- ASSERT_FALSE(base::i18n::IsRTL());
- ASSERT_FALSE(base::i18n::ICUIsRTL());
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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_F(RenderTextTest, DisplayRectShowsCursorRTL) {
- // Set the application default text direction to RTL.
- const bool was_rtl = base::i18n::IsRTL();
- SetRTL(true);
-
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- 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());
-}
-#endif // !defined(OS_MACOSX)
-
-// Changing colors between or inside ligated glyphs should not break shaping.
-TEST_F(RenderTextTest, SelectionKeepsLigatures) {
- const wchar_t* kTestStrings[] = { L"\x644\x623", L"\x633\x627" };
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- render_text->set_selection_color(SK_ColorRED);
- Canvas canvas;
-
- 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));
- }
-}
-
-#if defined(OS_WIN)
-// TODO(ckocagil): Enable for RenderTextHarfBuzz after implementing multiline.
-// Ensure strings wrap onto multiple lines for a small available width.
-TEST_F(RenderTextTest, Multiline_MinWidth) {
- const wchar_t* kTestStrings[] = { kWeak, kLtr, kLtrRtl, kLtrRtlLtr, kRtl,
- kRtlLtr, kRtlLtrRtl };
-
- scoped_ptr<RenderTextWin> render_text(
- static_cast<RenderTextWin*>(RenderText::CreateNativeInstance()));
- render_text->SetDisplayRect(Rect(1, 1000));
- render_text->SetMultiline(true);
- Canvas canvas;
-
- 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(render_text->lines_.size(), 1U);
- }
-}
-
-// TODO(ckocagil): Enable for RenderTextHarfBuzz after implementing multiline.
-// Ensure strings wrap onto multiple lines for a normal available width.
-TEST_F(RenderTextTest, Multiline_NormalWidth) {
- const struct {
- const wchar_t* const text;
- const Range first_line_char_range;
- const Range second_line_char_range;
- } kTestStrings[] = {
- { L"abc defg hijkl", Range(0, 9), Range(9, 14) },
- { L"qwertyzxcvbn", Range(0, 8), Range(8, 12) },
- { L"\x062A\x0641\x0627\x062D\x05EA\x05E4\x05D5\x05D6\x05D9\x05DD",
- Range(4, 10), Range(0, 4) }
- };
-
- scoped_ptr<RenderTextWin> render_text(
- static_cast<RenderTextWin*>(RenderText::CreateNativeInstance()));
- render_text->SetDisplayRect(Rect(50, 1000));
- render_text->SetMultiline(true);
- Canvas canvas;
-
- 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);
- ASSERT_EQ(2U, render_text->lines_.size());
- ASSERT_EQ(1U, render_text->lines_[0].segments.size());
- EXPECT_EQ(kTestStrings[i].first_line_char_range,
- render_text->lines_[0].segments[0].char_range);
- ASSERT_EQ(1U, render_text->lines_[1].segments.size());
- EXPECT_EQ(kTestStrings[i].second_line_char_range,
- render_text->lines_[1].segments[0].char_range);
- }
-}
-
-// TODO(ckocagil): Enable for RenderTextHarfBuzz after implementing multiline.
-// Ensure strings don't wrap onto multiple lines for a sufficient available
-// width.
-TEST_F(RenderTextTest, Multiline_SufficientWidth) {
- const wchar_t* kTestStrings[] = { L"", L" ", L".", L" . ", L"abc", L"a b c",
- L"\x62E\x628\x632", L"\x62E \x628 \x632" };
-
- scoped_ptr<RenderTextWin> render_text(
- static_cast<RenderTextWin*>(RenderText::CreateNativeInstance()));
- render_text->SetDisplayRect(Rect(30, 1000));
- render_text->SetMultiline(true);
- Canvas canvas;
-
- 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, render_text->lines_.size());
- }
-}
-
-// TODO(ckocagil): Enable for RenderTextHarfBuzz after implementing multiline.
-TEST_F(RenderTextTest, Multiline_Newline) {
- const struct {
- const wchar_t* const text;
- // Ranges of the characters on each line preceding the newline.
- const Range first_line_char_range;
- const Range second_line_char_range;
- } kTestStrings[] = {
- { L"abc\ndef", Range(0, 3), Range(4, 7) },
- { L"a \n b ", Range(0, 2), Range(3, 6) },
- { L"\n" , Range::InvalidRange(), Range::InvalidRange() }
- };
-
- scoped_ptr<RenderTextWin> render_text(
- static_cast<RenderTextWin*>(RenderText::CreateNativeInstance()));
- render_text->SetDisplayRect(Rect(200, 1000));
- render_text->SetMultiline(true);
- Canvas canvas;
-
- 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);
-
- ASSERT_EQ(2U, render_text->lines_.size());
-
- const Range first_expected_range = kTestStrings[i].first_line_char_range;
- ASSERT_EQ(first_expected_range.IsValid() ? 2U : 1U,
- render_text->lines_[0].segments.size());
- if (first_expected_range.IsValid())
- EXPECT_EQ(first_expected_range,
- render_text->lines_[0].segments[0].char_range);
-
- const internal::LineSegment& newline_segment =
- render_text->lines_[0].segments[first_expected_range.IsValid() ? 1 : 0];
- ASSERT_EQ(1U, newline_segment.char_range.length());
- EXPECT_EQ(L'\n', kTestStrings[i].text[newline_segment.char_range.start()]);
-
- const Range second_expected_range = kTestStrings[i].second_line_char_range;
- ASSERT_EQ(second_expected_range.IsValid() ? 1U : 0U,
- render_text->lines_[1].segments.size());
- if (second_expected_range.IsValid())
- EXPECT_EQ(second_expected_range,
- render_text->lines_[1].segments[0].char_range);
- }
-}
-
-// TODO(ckocagil): Remove when RenderTextWin goes away.
-TEST_F(RenderTextTest, BreakRunsByUnicodeBlocks) {
- scoped_ptr<RenderTextWin> render_text(
- static_cast<RenderTextWin*>(RenderText::CreateNativeInstance()));
-
- // The '\x25B6' "play character" should break runs. http://crbug.com/278913
- render_text->SetText(WideToUTF16(L"x\x25B6y"));
- render_text->EnsureLayout();
- ASSERT_EQ(3U, render_text->runs_.size());
- EXPECT_EQ(Range(0, 1), render_text->runs_[0]->range);
- EXPECT_EQ(Range(1, 2), render_text->runs_[1]->range);
- EXPECT_EQ(Range(2, 3), render_text->runs_[2]->range);
-
- render_text->SetText(WideToUTF16(L"x \x25B6 y"));
- render_text->EnsureLayout();
- ASSERT_EQ(3U, render_text->runs_.size());
- EXPECT_EQ(Range(0, 2), render_text->runs_[0]->range);
- EXPECT_EQ(Range(2, 3), render_text->runs_[1]->range);
- EXPECT_EQ(Range(3, 5), render_text->runs_[2]->range);
-}
-#endif // defined(OS_WIN)
-
-// Test TextRunHarfBuzz's cluster finding logic.
-TEST_F(RenderTextTest, HarfBuzz_Clusters) {
- struct {
- uint32 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;
- 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_F(RenderTextTest, 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;
-
- 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);
- render_text.EnsureLayout();
- ASSERT_EQ(1U, render_text.runs_.size());
- internal::TextRunHarfBuzz* run = render_text.runs_[0];
-
- base::i18n::BreakIterator* iter = render_text.grapheme_iterator_.get();
- Range first_grapheme_bounds = run->GetGraphemeBounds(iter, 0);
- EXPECT_EQ(first_grapheme_bounds, run->GetGraphemeBounds(iter, 1));
- Range second_grapheme_bounds = run->GetGraphemeBounds(iter, 2);
- EXPECT_EQ(first_grapheme_bounds.end(), second_grapheme_bounds.start());
- }
-}
-
-// Test the partition of a multi-grapheme cluster into grapheme ranges.
-TEST_F(RenderTextTest, HarfBuzz_SubglyphGraphemePartition) {
- struct {
- uint32 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;
- run.range = Range(0, 4);
- run.glyph_count = 2;
- run.glyph_to_char.resize(2);
- run.positions.reset(new SkPoint[4]);
- run.width = 20;
-
- const base::string16 kString = ASCIIToUTF16("abcd");
- scoped_ptr<base::i18n::BreakIterator> iter(new base::i18n::BreakIterator(
- kString, base::i18n::BreakIterator::BREAK_CHARACTER));
- ASSERT_TRUE(iter->Init());
-
- 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(iter.get(), j));
- }
- }
-}
-
-TEST_F(RenderTextTest, HarfBuzz_RunDirection) {
- RenderTextHarfBuzz render_text;
- const base::string16 mixed =
- WideToUTF16(L"\x05D0\x05D1" L"1234" L"\x05D2\x05D3");
- render_text.SetText(mixed);
- render_text.EnsureLayout();
- ASSERT_EQ(3U, render_text.runs_.size());
- EXPECT_TRUE(render_text.runs_[0]->is_rtl);
- EXPECT_FALSE(render_text.runs_[1]->is_rtl);
- EXPECT_TRUE(render_text.runs_[2]->is_rtl);
-}
-
-TEST_F(RenderTextTest, HarfBuzz_BreakRunsByUnicodeBlocks) {
- RenderTextHarfBuzz render_text;
-
- // The '\x25B6' "play character" should break runs. http://crbug.com/278913
- render_text.SetText(WideToUTF16(L"x\x25B6y"));
- render_text.EnsureLayout();
- ASSERT_EQ(3U, render_text.runs_.size());
- EXPECT_EQ(Range(0, 1), render_text.runs_[0]->range);
- EXPECT_EQ(Range(1, 2), render_text.runs_[1]->range);
- EXPECT_EQ(Range(2, 3), render_text.runs_[2]->range);
-
- render_text.SetText(WideToUTF16(L"x \x25B6 y"));
- render_text.EnsureLayout();
- ASSERT_EQ(3U, render_text.runs_.size());
- EXPECT_EQ(Range(0, 2), render_text.runs_[0]->range);
- EXPECT_EQ(Range(2, 3), render_text.runs_[1]->range);
- EXPECT_EQ(Range(3, 5), render_text.runs_[2]->range);
-}
-
-// Disabled on Mac because RenderTextMac doesn't implement GetGlyphBounds.
-#if !defined(OS_MACOSX)
-TEST_F(RenderTextTest, GlyphBounds) {
- const wchar_t* kTestStrings[] = {
- L"asdf 1234 qwer", L"\x0647\x0654", L"\x0645\x0631\x062D\x0628\x0627"
- };
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-
- for (size_t i = 0; i < arraysize(kTestStrings); ++i) {
- render_text->SetText(WideToUTF16(kTestStrings[i]));
- render_text->EnsureLayout();
-
- for (size_t j = 0; j < render_text->text().length(); ++j)
- EXPECT_FALSE(render_text->GetGlyphBounds(j).is_empty());
- }
-}
-#endif
-
-// Remove this after making RTHB default in favor of RenderTextTest.GlyphBounds.
-TEST_F(RenderTextTest, HarfBuzz_GlyphBounds) {
- const wchar_t* kTestStrings[] = {
- L"asdf 1234 qwer", L"\x0647\x0654", L"\x0645\x0631\x062D\x0628\x0627"
- };
- scoped_ptr<RenderText> render_text(new RenderTextHarfBuzz);
-
- for (size_t i = 0; i < arraysize(kTestStrings); ++i) {
- render_text->SetText(WideToUTF16(kTestStrings[i]));
- render_text->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_F(RenderTextTest, HarfBuzz_NonExistentFont) {
- RenderTextHarfBuzz render_text;
- render_text.SetText(ASCIIToUTF16("test"));
- render_text.EnsureLayout();
- ASSERT_EQ(1U, render_text.runs_.size());
- internal::TextRunHarfBuzz* run = render_text.runs_[0];
- render_text.ShapeRunWithFont(run, "TheFontThatDoesntExist");
-}
-
-// Ensure an empty run returns sane values to queries.
-TEST_F(RenderTextTest, HarfBuzz_EmptyRun) {
- internal::TextRunHarfBuzz run;
- const base::string16 kString = ASCIIToUTF16("abcdefgh");
- scoped_ptr<base::i18n::BreakIterator> iter(new base::i18n::BreakIterator(
- kString, base::i18n::BreakIterator::BREAK_CHARACTER));
- ASSERT_TRUE(iter->Init());
-
- 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(iter.get(), 4));
- Range chars;
- Range glyphs;
- run.GetClusterAt(4, &chars, &glyphs);
- EXPECT_EQ(Range(3, 8), chars);
- EXPECT_EQ(Range(0, 0), glyphs);
-}
-
-// Ensure a string fits in a display rect with a width equal to the string's.
-TEST_F(RenderTextTest, StringFitsOwnWidth) {
- scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
- const base::string16 kString = ASCIIToUTF16("www.example.com");
-
- render_text->SetText(kString);
- render_text->ApplyStyle(BOLD, true, Range(0, 3));
- render_text->SetElideBehavior(ELIDE_TAIL);
-
- render_text->SetDisplayRect(Rect(0, 0, 500, 100));
- EXPECT_EQ(kString, render_text->GetLayoutText());
- render_text->SetDisplayRect(Rect(0, 0, render_text->GetContentWidth(), 100));
- EXPECT_EQ(kString, render_text->GetLayoutText());
-}
-
-} // namespace gfx
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