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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/gfx/render_text.h" | 5 #include "ui/gfx/render_text.h" |
6 | 6 |
7 #include "base/memory/scoped_ptr.h" | 7 #include "base/memory/scoped_ptr.h" |
8 #include "base/utf_string_conversions.h" | 8 #include "base/utf_string_conversions.h" |
9 #include "testing/gtest/include/gtest/gtest.h" | 9 #include "testing/gtest/include/gtest/gtest.h" |
10 | 10 |
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536 EXPECT_EQ(4U, render_text->GetCursorPosition()); | 536 EXPECT_EQ(4U, render_text->GetCursorPosition()); |
537 render_text->MoveCursorLeft(CHARACTER_BREAK, false); | 537 render_text->MoveCursorLeft(CHARACTER_BREAK, false); |
538 EXPECT_EQ(2U, render_text->GetCursorPosition()); | 538 EXPECT_EQ(2U, render_text->GetCursorPosition()); |
539 render_text->MoveCursorLeft(CHARACTER_BREAK, false); | 539 render_text->MoveCursorLeft(CHARACTER_BREAK, false); |
540 EXPECT_EQ(0U, render_text->GetCursorPosition()); | 540 EXPECT_EQ(0U, render_text->GetCursorPosition()); |
541 render_text->MoveCursorLeft(CHARACTER_BREAK, false); | 541 render_text->MoveCursorLeft(CHARACTER_BREAK, false); |
542 EXPECT_EQ(0U, render_text->GetCursorPosition()); | 542 EXPECT_EQ(0U, render_text->GetCursorPosition()); |
543 } | 543 } |
544 #endif | 544 #endif |
545 | 545 |
546 TEST_F(RenderTextTest, GraphemePositions) { | |
547 // LTR 2-character grapheme, LTR abc, LTR 2-character grapheme. | |
548 const string16 kText1 = WideToUTF16(L"\x0915\x093f"L"abc"L"\x0915\x093f"); | |
549 | |
550 // LTR ab, LTR 2-character grapheme, LTR cd. | |
551 const string16 kText2 = WideToUTF16(L"ab"L"\x0915\x093f"L"cd"); | |
552 | |
553 struct { | |
554 string16 text; | |
555 size_t index; | |
556 size_t expected_previous; | |
557 size_t expected_next; | |
558 } cases[] = { | |
559 { string16(), 0, 0, 0 }, | |
560 { string16(), 1, 0, 0 }, | |
561 { string16(), 50, 0, 0 }, | |
562 { kText1, 0, 0, 2 }, | |
563 { kText1, 1, 0, 2 }, | |
564 { kText1, 2, 0, 3 }, | |
565 { kText1, 3, 2, 4 }, | |
566 { kText1, 4, 3, 5 }, | |
567 { kText1, 5, 4, 7 }, | |
568 { kText1, 6, 5, 7 }, | |
569 { kText1, 7, 5, 7 }, | |
570 { kText1, 8, 7, 7 }, | |
571 { kText1, 50, 7, 7 }, | |
572 { kText2, 0, 0, 1 }, | |
573 { kText2, 1, 0, 2 }, | |
574 { kText2, 2, 1, 4 }, | |
575 { kText2, 3, 2, 4 }, | |
576 { kText2, 4, 2, 5 }, | |
577 { kText2, 5, 4, 6 }, | |
578 { kText2, 6, 5, 6 }, | |
579 { kText2, 7, 6, 6 }, | |
580 { kText2, 50, 6, 6 }, | |
581 }; | |
582 | |
583 scoped_ptr<RenderText> render_text(RenderText::CreateRenderText()); | |
584 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); i++) { | |
585 render_text->SetText(cases[i].text); | |
586 | |
587 size_t next = render_text->GetIndexOfNextGrapheme(cases[i].index); | |
588 EXPECT_EQ(cases[i].expected_next, next); | |
589 EXPECT_TRUE(render_text->IsCursorablePosition(next)); | |
590 | |
591 size_t previous = render_text->GetIndexOfPreviousGrapheme(cases[i].index); | |
592 EXPECT_EQ(cases[i].expected_previous, previous); | |
593 EXPECT_TRUE(render_text->IsCursorablePosition(previous)); | |
594 } | |
595 } | |
596 | |
597 TEST_F(RenderTextTest, SelectionModels) { | |
598 // Simple Latin text. | |
599 const string16 kLatin = WideToUTF16(L"abc"); | |
600 // LTR 2-character grapheme. | |
601 const string16 kLTRGrapheme = WideToUTF16(L"\x0915\x093f"); | |
602 // LTR 2-character grapheme, LTR a, LTR 2-character grapheme. | |
603 const string16 kHindiLatin = WideToUTF16(L"\x0915\x093f"L"a"L"\x0915\x093f"); | |
604 // RTL 2-character grapheme. | |
605 const string16 kRTLGrapheme = WideToUTF16(L"\x05e0\x05b8"); | |
606 // RTL 2-character grapheme, LTR a, RTL 2-character grapheme. | |
607 const string16 kHebrewLatin = WideToUTF16(L"\x05e0\x05b8"L"a"L"\x05e0\x05b8"); | |
608 | |
609 struct { | |
610 string16 text; | |
611 size_t expected_left_end_caret; | |
612 SelectionModel::CaretPlacement expected_left_end_placement; | |
613 size_t expected_right_end_caret; | |
614 SelectionModel::CaretPlacement expected_right_end_placement; | |
615 } cases[] = { | |
616 { string16(), 0, SelectionModel::LEADING, 0, SelectionModel::LEADING }, | |
617 { kLatin, 0, SelectionModel::LEADING, 2, SelectionModel::TRAILING }, | |
618 { kLTRGrapheme, 0, SelectionModel::LEADING, 0, SelectionModel::TRAILING }, | |
619 { kHindiLatin, 0, SelectionModel::LEADING, 3, SelectionModel::TRAILING }, | |
620 { kRTLGrapheme, 0, SelectionModel::TRAILING, 0, SelectionModel::LEADING }, | |
621 #if defined(OS_LINUX) | |
622 // On Linux, the whole string is displayed RTL, rather than individual runs. | |
623 { kHebrewLatin, 3, SelectionModel::TRAILING, 0, SelectionModel::LEADING }, | |
624 #else | |
625 { kHebrewLatin, 0, SelectionModel::TRAILING, 3, SelectionModel::LEADING }, | |
626 #endif | |
627 }; | |
628 | |
629 scoped_ptr<RenderText> render_text(RenderText::CreateRenderText()); | |
630 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); i++) { | |
631 render_text->SetText(cases[i].text); | |
632 | |
633 SelectionModel model = render_text->LeftEndSelectionModel(); | |
634 EXPECT_EQ(cases[i].expected_left_end_caret, model.caret_pos()); | |
635 EXPECT_TRUE(render_text->IsCursorablePosition(model.caret_pos())); | |
636 EXPECT_EQ(cases[i].expected_left_end_placement, model.caret_placement()); | |
637 | |
638 model = render_text->RightEndSelectionModel(); | |
639 EXPECT_EQ(cases[i].expected_right_end_caret, model.caret_pos()); | |
640 EXPECT_TRUE(render_text->IsCursorablePosition(model.caret_pos())); | |
641 EXPECT_EQ(cases[i].expected_right_end_placement, model.caret_placement()); | |
642 } | |
643 } | |
644 | |
645 TEST_F(RenderTextTest, MoveCursorLeftRightWithSelection) { | 546 TEST_F(RenderTextTest, MoveCursorLeftRightWithSelection) { |
646 scoped_ptr<RenderText> render_text(RenderText::CreateRenderText()); | 547 scoped_ptr<RenderText> render_text(RenderText::CreateRenderText()); |
647 render_text->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2")); | 548 render_text->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2")); |
648 // Left arrow on select ranging (6, 4). | 549 // Left arrow on select ranging (6, 4). |
649 render_text->MoveCursorRight(LINE_BREAK, false); | 550 render_text->MoveCursorRight(LINE_BREAK, false); |
650 EXPECT_EQ(6U, render_text->GetCursorPosition()); | 551 EXPECT_EQ(6U, render_text->GetCursorPosition()); |
651 render_text->MoveCursorLeft(CHARACTER_BREAK, false); | 552 render_text->MoveCursorLeft(CHARACTER_BREAK, false); |
652 EXPECT_EQ(4U, render_text->GetCursorPosition()); | 553 EXPECT_EQ(4U, render_text->GetCursorPosition()); |
653 render_text->MoveCursorLeft(CHARACTER_BREAK, false); | 554 render_text->MoveCursorLeft(CHARACTER_BREAK, false); |
654 EXPECT_EQ(5U, render_text->GetCursorPosition()); | 555 EXPECT_EQ(5U, render_text->GetCursorPosition()); |
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845 EXPECT_EQ(5U, render_text->GetCursorPosition()); | 746 EXPECT_EQ(5U, render_text->GetCursorPosition()); |
846 render_text->MoveCursorRight(WORD_BREAK, false); | 747 render_text->MoveCursorRight(WORD_BREAK, false); |
847 EXPECT_EQ(6U, render_text->GetCursorPosition()); | 748 EXPECT_EQ(6U, render_text->GetCursorPosition()); |
848 render_text->MoveCursorRight(WORD_BREAK, false); | 749 render_text->MoveCursorRight(WORD_BREAK, false); |
849 EXPECT_EQ(6U, render_text->GetCursorPosition()); | 750 EXPECT_EQ(6U, render_text->GetCursorPosition()); |
850 } | 751 } |
851 | 752 |
852 #endif | 753 #endif |
853 | 754 |
854 } // namespace gfx | 755 } // namespace gfx |
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