The Tor Browser / file comparison
comparison: widget/TextRange.h
widget/TextRange.h
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:12675e7e8c56 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef mozilla_TextRage_h_ | |
| 7 #define mozilla_TextRage_h_ | |
| 8 | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include "nsAutoPtr.h" | |
| 12 #include "nsColor.h" | |
| 13 #include "nsStyleConsts.h" | |
| 14 #include "nsTArray.h" | |
| 15 | |
| 16 namespace mozilla { | |
| 17 | |
| 18 /****************************************************************************** | |
| 19 * mozilla::TextRangeStyle | |
| 20 ******************************************************************************/ | |
| 21 | |
| 22 struct TextRangeStyle | |
| 23 { | |
| 24 enum | |
| 25 { | |
| 26 LINESTYLE_NONE = NS_STYLE_TEXT_DECORATION_STYLE_NONE, | |
| 27 LINESTYLE_SOLID = NS_STYLE_TEXT_DECORATION_STYLE_SOLID, | |
| 28 LINESTYLE_DOTTED = NS_STYLE_TEXT_DECORATION_STYLE_DOTTED, | |
| 29 LINESTYLE_DASHED = NS_STYLE_TEXT_DECORATION_STYLE_DASHED, | |
| 30 LINESTYLE_DOUBLE = NS_STYLE_TEXT_DECORATION_STYLE_DOUBLE, | |
| 31 LINESTYLE_WAVY = NS_STYLE_TEXT_DECORATION_STYLE_WAVY | |
| 32 }; | |
| 33 | |
| 34 enum | |
| 35 { | |
| 36 DEFINED_NONE = 0x00, | |
| 37 DEFINED_LINESTYLE = 0x01, | |
| 38 DEFINED_FOREGROUND_COLOR = 0x02, | |
| 39 DEFINED_BACKGROUND_COLOR = 0x04, | |
| 40 DEFINED_UNDERLINE_COLOR = 0x08 | |
| 41 }; | |
| 42 | |
| 43 // Initialize all members, because TextRange instances may be compared by | |
| 44 // memcomp. | |
| 45 TextRangeStyle() | |
| 46 { | |
| 47 Clear(); | |
| 48 } | |
| 49 | |
| 50 void Clear() | |
| 51 { | |
| 52 mDefinedStyles = DEFINED_NONE; | |
| 53 mLineStyle = LINESTYLE_NONE; | |
| 54 mIsBoldLine = false; | |
| 55 mForegroundColor = mBackgroundColor = mUnderlineColor = NS_RGBA(0, 0, 0, 0); | |
| 56 } | |
| 57 | |
| 58 bool IsDefined() const { return mDefinedStyles != DEFINED_NONE; } | |
| 59 | |
| 60 bool IsLineStyleDefined() const | |
| 61 { | |
| 62 return (mDefinedStyles & DEFINED_LINESTYLE) != 0; | |
| 63 } | |
| 64 | |
| 65 bool IsForegroundColorDefined() const | |
| 66 { | |
| 67 return (mDefinedStyles & DEFINED_FOREGROUND_COLOR) != 0; | |
| 68 } | |
| 69 | |
| 70 bool IsBackgroundColorDefined() const | |
| 71 { | |
| 72 return (mDefinedStyles & DEFINED_BACKGROUND_COLOR) != 0; | |
| 73 } | |
| 74 | |
| 75 bool IsUnderlineColorDefined() const | |
| 76 { | |
| 77 return (mDefinedStyles & DEFINED_UNDERLINE_COLOR) != 0; | |
| 78 } | |
| 79 | |
| 80 bool IsNoChangeStyle() const | |
| 81 { | |
| 82 return !IsForegroundColorDefined() && !IsBackgroundColorDefined() && | |
| 83 IsLineStyleDefined() && mLineStyle == LINESTYLE_NONE; | |
| 84 } | |
| 85 | |
| 86 bool Equals(const TextRangeStyle& aOther) | |
| 87 { | |
| 88 if (mDefinedStyles != aOther.mDefinedStyles) | |
| 89 return false; | |
| 90 if (IsLineStyleDefined() && (mLineStyle != aOther.mLineStyle || | |
| 91 !mIsBoldLine != !aOther.mIsBoldLine)) | |
| 92 return false; | |
| 93 if (IsForegroundColorDefined() && | |
| 94 (mForegroundColor != aOther.mForegroundColor)) | |
| 95 return false; | |
| 96 if (IsBackgroundColorDefined() && | |
| 97 (mBackgroundColor != aOther.mBackgroundColor)) | |
| 98 return false; | |
| 99 if (IsUnderlineColorDefined() && | |
| 100 (mUnderlineColor != aOther.mUnderlineColor)) | |
| 101 return false; | |
| 102 return true; | |
| 103 } | |
| 104 | |
| 105 bool operator !=(const TextRangeStyle &aOther) | |
| 106 { | |
| 107 return !Equals(aOther); | |
| 108 } | |
| 109 | |
| 110 bool operator ==(const TextRangeStyle &aOther) | |
| 111 { | |
| 112 return Equals(aOther); | |
| 113 } | |
| 114 | |
| 115 uint8_t mDefinedStyles; | |
| 116 uint8_t mLineStyle; // DEFINED_LINESTYLE | |
| 117 | |
| 118 bool mIsBoldLine; // DEFINED_LINESTYLE | |
| 119 | |
| 120 nscolor mForegroundColor; // DEFINED_FOREGROUND_COLOR | |
| 121 nscolor mBackgroundColor; // DEFINED_BACKGROUND_COLOR | |
| 122 nscolor mUnderlineColor; // DEFINED_UNDERLINE_COLOR | |
| 123 }; | |
| 124 | |
| 125 /****************************************************************************** | |
| 126 * mozilla::TextRange | |
| 127 ******************************************************************************/ | |
| 128 | |
| 129 #define NS_TEXTRANGE_CARETPOSITION 0x01 | |
| 130 #define NS_TEXTRANGE_RAWINPUT 0x02 | |
| 131 #define NS_TEXTRANGE_SELECTEDRAWTEXT 0x03 | |
| 132 #define NS_TEXTRANGE_CONVERTEDTEXT 0x04 | |
| 133 #define NS_TEXTRANGE_SELECTEDCONVERTEDTEXT 0x05 | |
| 134 | |
| 135 struct TextRange | |
| 136 { | |
| 137 TextRange() : | |
| 138 mStartOffset(0), mEndOffset(0), mRangeType(0) | |
| 139 { | |
| 140 } | |
| 141 | |
| 142 uint32_t mStartOffset; | |
| 143 // XXX Storing end offset makes the initializing code very complicated. | |
| 144 // We should replace it with mLength. | |
| 145 uint32_t mEndOffset; | |
| 146 uint32_t mRangeType; | |
| 147 | |
| 148 TextRangeStyle mRangeStyle; | |
| 149 | |
| 150 uint32_t Length() const { return mEndOffset - mStartOffset; } | |
| 151 | |
| 152 bool IsClause() const | |
| 153 { | |
| 154 MOZ_ASSERT(mRangeType >= NS_TEXTRANGE_CARETPOSITION && | |
| 155 mRangeType <= NS_TEXTRANGE_SELECTEDCONVERTEDTEXT, | |
| 156 "Invalid range type"); | |
| 157 return mRangeType != NS_TEXTRANGE_CARETPOSITION; | |
| 158 } | |
| 159 }; | |
| 160 | |
| 161 /****************************************************************************** | |
| 162 * mozilla::TextRangeArray | |
| 163 ******************************************************************************/ | |
| 164 class TextRangeArray MOZ_FINAL : public nsAutoTArray<TextRange, 10> | |
| 165 { | |
| 166 NS_INLINE_DECL_REFCOUNTING(TextRangeArray) | |
| 167 | |
| 168 public: | |
| 169 bool IsComposing() const | |
| 170 { | |
| 171 for (uint32_t i = 0; i < Length(); ++i) { | |
| 172 if (ElementAt(i).IsClause()) { | |
| 173 return true; | |
| 174 } | |
| 175 } | |
| 176 return false; | |
| 177 } | |
| 178 | |
| 179 // Returns target clase offset. If there are selected clauses, this returns | |
| 180 // the first selected clause offset. Otherwise, 0. | |
| 181 uint32_t TargetClauseOffset() const | |
| 182 { | |
| 183 for (uint32_t i = 0; i < Length(); ++i) { | |
| 184 const TextRange& range = ElementAt(i); | |
| 185 if (range.mRangeType == NS_TEXTRANGE_SELECTEDRAWTEXT || | |
| 186 range.mRangeType == NS_TEXTRANGE_SELECTEDCONVERTEDTEXT) { | |
| 187 return range.mStartOffset; | |
| 188 } | |
| 189 } | |
| 190 return 0; | |
| 191 } | |
| 192 }; | |
| 193 | |
| 194 } // namespace mozilla | |
| 195 | |
| 196 #endif // mozilla_TextRage_h_ |
