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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/common/dwrite_text_analysis_source_win.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 | |
| 9 namespace content { | |
| 10 | |
| 11 TextAnalysisSource::TextAnalysisSource() = default; | |
| 12 TextAnalysisSource::~TextAnalysisSource() = default; | |
| 13 | |
| 14 HRESULT TextAnalysisSource::GetLocaleName(UINT32 text_position, | |
| 15 UINT32* text_length, | |
| 16 const WCHAR** locale_name) { | |
| 17 if (text_position >= text_.length() || !text_length || !locale_name) | |
| 18 return E_INVALIDARG; | |
| 19 *text_length = text_.length() - text_position; | |
| 20 *locale_name = locale_name_.c_str(); | |
| 21 return S_OK; | |
| 22 } | |
| 23 | |
| 24 HRESULT TextAnalysisSource::GetNumberSubstitution( | |
| 25 UINT32 text_position, | |
| 26 UINT32* text_length, | |
| 27 IDWriteNumberSubstitution** number_substitution) { | |
| 28 if (text_position >= text_.length() || !text_length || !number_substitution) | |
| 29 return E_INVALIDARG; | |
| 30 *text_length = text_.length() - text_position; | |
| 31 number_substitution_.CopyTo(number_substitution); | |
| 32 return S_OK; | |
| 33 } | |
| 34 | |
| 35 DWRITE_READING_DIRECTION TextAnalysisSource::GetParagraphReadingDirection() { | |
| 36 return reading_direction_; | |
| 37 } | |
| 38 | |
| 39 HRESULT TextAnalysisSource::GetTextAtPosition(UINT32 text_position, | |
| 40 const WCHAR** text_string, | |
| 41 UINT32* text_length) { | |
| 42 if (!text_length || !text_string) | |
| 43 return E_INVALIDARG; | |
| 44 if (text_position >= text_.length()) { | |
| 45 *text_string = nullptr; | |
| 46 *text_length = 0; | |
| 47 return S_OK; | |
| 48 } | |
| 49 *text_string = text_.c_str() + text_position; | |
| 50 *text_length = text_.length() - text_position; | |
| 51 return S_OK; | |
| 52 } | |
| 53 | |
| 54 HRESULT TextAnalysisSource::GetTextBeforePosition(UINT32 text_position, | |
| 55 const WCHAR** text_string, | |
| 56 UINT32* text_length) { | |
| 57 if (!text_length || !text_string) | |
| 58 return E_INVALIDARG; | |
| 59 if (text_position < 1 || text_position > text_.length()) { | |
| 60 *text_string = nullptr; | |
| 61 *text_length = 0; | |
| 62 return S_OK; | |
| 63 } | |
| 64 *text_string = text_.c_str(); | |
| 65 *text_length = text_position; | |
| 66 return S_OK; | |
| 67 } | |
| 68 | |
| 69 HRESULT TextAnalysisSource::RuntimeClassInitialize( | |
| 70 const base::string16& text, | |
| 71 const base::string16& locale_name, | |
| 72 IDWriteNumberSubstitution* number_substitution, | |
| 73 DWRITE_READING_DIRECTION reading_direction) { | |
| 74 DCHECK(number_substitution); | |
| 75 text_ = text; | |
| 76 locale_name_ = locale_name; | |
| 77 number_substitution_ = number_substitution; | |
| 78 reading_direction_ = reading_direction; | |
| 79 return S_OK; | |
| 80 } | |
| 81 | |
| 82 } // namespace content | |
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Chromium Code Reviews
Issue 2054273002:
Font fallback for UI (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master