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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/views/controls/textfield/textfield_model.h" | 5 #include "ui/views/controls/textfield/textfield_model.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
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520 | 520 |
521 base::string16 actual_text = base::CollapseWhitespace(text, false); | 521 base::string16 actual_text = base::CollapseWhitespace(text, false); |
522 // If the clipboard contains all whitespaces then paste a single space. | 522 // If the clipboard contains all whitespaces then paste a single space. |
523 if (actual_text.empty()) | 523 if (actual_text.empty()) |
524 actual_text = base::ASCIIToUTF16(" "); | 524 actual_text = base::ASCIIToUTF16(" "); |
525 | 525 |
526 InsertTextInternal(actual_text, false); | 526 InsertTextInternal(actual_text, false); |
527 return true; | 527 return true; |
528 } | 528 } |
529 | 529 |
| 530 bool TextfieldModel::Transpose() { |
| 531 if (HasCompositionText() || HasSelection()) |
| 532 return false; |
| 533 |
| 534 size_t cur = GetCursorPosition(); |
| 535 size_t next = render_text_->IndexOfAdjacentGrapheme(cur, gfx::CURSOR_FORWARD); |
| 536 size_t prev = |
| 537 render_text_->IndexOfAdjacentGrapheme(cur, gfx::CURSOR_BACKWARD); |
| 538 |
| 539 // At the end of the line, the last two characters should be transposed. |
| 540 if (cur == text().length()) { |
| 541 DCHECK_EQ(cur, next); |
| 542 cur = prev; |
| 543 prev = render_text_->IndexOfAdjacentGrapheme(prev, gfx::CURSOR_BACKWARD); |
| 544 } |
| 545 |
| 546 // This happens at the beginning of the line or when the line has less than |
| 547 // two graphemes. |
| 548 if (gfx::UTF16IndexToOffset(text(), prev, next) != 2) |
| 549 return false; |
| 550 |
| 551 SelectRange(gfx::Range(prev, next)); |
| 552 base::string16 text = GetSelectedText(); |
| 553 base::string16 transposed_text = |
| 554 text.substr(cur - prev) + text.substr(0, cur - prev); |
| 555 |
| 556 InsertTextInternal(transposed_text, false); |
| 557 return true; |
| 558 } |
| 559 |
530 bool TextfieldModel::HasSelection() const { | 560 bool TextfieldModel::HasSelection() const { |
531 return !render_text_->selection().is_empty(); | 561 return !render_text_->selection().is_empty(); |
532 } | 562 } |
533 | 563 |
534 void TextfieldModel::DeleteSelection() { | 564 void TextfieldModel::DeleteSelection() { |
535 DCHECK(!HasCompositionText()); | 565 DCHECK(!HasCompositionText()); |
536 DCHECK(HasSelection()); | 566 DCHECK(HasSelection()); |
537 ExecuteAndRecordDelete(render_text_->selection(), false); | 567 ExecuteAndRecordDelete(render_text_->selection(), false); |
538 } | 568 } |
539 | 569 |
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774 ClearComposition(); | 804 ClearComposition(); |
775 if (delete_from != delete_to) | 805 if (delete_from != delete_to) |
776 render_text_->SetText(old_text.erase(delete_from, delete_to - delete_from)); | 806 render_text_->SetText(old_text.erase(delete_from, delete_to - delete_from)); |
777 if (!new_text.empty()) | 807 if (!new_text.empty()) |
778 render_text_->SetText(old_text.insert(new_text_insert_at, new_text)); | 808 render_text_->SetText(old_text.insert(new_text_insert_at, new_text)); |
779 render_text_->SetCursorPosition(new_cursor_pos); | 809 render_text_->SetCursorPosition(new_cursor_pos); |
780 // TODO(oshima): Select text that was just undone, like Mac (but not GTK). | 810 // TODO(oshima): Select text that was just undone, like Mac (but not GTK). |
781 } | 811 } |
782 | 812 |
783 } // namespace views | 813 } // namespace views |
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