diff options
Diffstat (limited to 'widget/IMEData.cpp')
| -rw-r--r-- | widget/IMEData.cpp | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/widget/IMEData.cpp b/widget/IMEData.cpp new file mode 100644 index 0000000000..a40b86a9a2 --- /dev/null +++ b/widget/IMEData.cpp @@ -0,0 +1,420 @@ +/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "IMEData.h" + +#include <sstream> + +#include "ContentData.h" +#include "gfxFontUtils.h" +#include "TextEvents.h" + +#include "mozilla/Maybe.h" +#include "mozilla/ToString.h" +#include "mozilla/WritingModes.h" + +#include "nsPrintfCString.h" +#include "nsString.h" + +namespace mozilla { + +template PrintStringDetail::PrintStringDetail( + const Maybe<nsString>& aMaybeString, uint32_t aMaxLength); + +template <typename StringType> +PrintStringDetail::PrintStringDetail(const Maybe<StringType>& aMaybeString, + uint32_t aMaxLength /* = UINT32_MAX */) + : PrintStringDetail(aMaybeString.refOr(EmptyString()), aMaxLength) { + if (aMaybeString.isNothing()) { + AssignASCII(ToString(aMaybeString).c_str()); + } +} + +PrintStringDetail::PrintStringDetail(const nsAString& aString, + uint32_t aMaxLength /* = UINT32_MAX */) { + Assign("\""); + const uint32_t kFirstHalf = + aString.Length() <= aMaxLength ? UINT32_MAX : (aMaxLength + 1) / 2; + const uint32_t kSecondHalf = + aString.Length() <= aMaxLength ? 0 : aMaxLength / 2; + for (uint32_t i = 0; i < aString.Length(); i++) { + if (i > 0) { + AppendLiteral(" "); + } + char32_t ch = aString.CharAt(i); + if (NS_IS_HIGH_SURROGATE(ch) && i + 1 < aString.Length() && + NS_IS_LOW_SURROGATE(aString.CharAt(i + 1))) { + ch = SURROGATE_TO_UCS4(ch, aString.CharAt(i + 1)); + } + Append(PrintCharData(ch)); + if (i + 1 == kFirstHalf) { + AppendLiteral(" ..."); + i = aString.Length() - kSecondHalf - 1; + if (NS_IS_LOW_SURROGATE(aString.CharAt(i)) && + NS_IS_HIGH_SURROGATE(aString.CharAt(i - 1))) { + if (i - 1 <= kFirstHalf) { + i++; + } else { + i--; + } + } + } else if (!IS_IN_BMP(ch)) { + i++; + } + } + AppendLiteral("\" (Length()="); + AppendInt(static_cast<uint32_t>(aString.Length())); + AppendLiteral(")"); +} + +// static +nsCString PrintStringDetail::PrintCharData(char32_t aChar) { + switch (aChar) { + case 0x0000: + return "NULL (0x0000)"_ns; + case 0x0008: + return "BACKSPACE (0x0008)"_ns; + case 0x0009: + return "CHARACTER TABULATION (0x0009)"_ns; + case 0x000A: + return "LINE FEED (0x000A)"_ns; + case 0x000B: + return "LINE TABULATION (0x000B)"_ns; + case 0x000C: + return "FORM FEED (0x000C)"_ns; + case 0x000D: + return "CARRIAGE RETURN (0x000D)"_ns; + case 0x0018: + return "CANCEL (0x0018)"_ns; + case 0x001B: + return "ESCAPE (0x001B)"_ns; + case 0x0020: + return "SPACE (0x0020)"_ns; + case 0x007F: + return "DELETE (0x007F)"_ns; + case 0x00A0: + return "NO-BREAK SPACE (0x00A0)"_ns; + case 0x00AD: + return "SOFT HYPHEN (0x00AD)"_ns; + case 0x2000: + return "EN QUAD (0x2000)"_ns; + case 0x2001: + return "EM QUAD (0x2001)"_ns; + case 0x2002: + return "EN SPACE (0x2002)"_ns; + case 0x2003: + return "EM SPACE (0x2003)"_ns; + case 0x2004: + return "THREE-PER-EM SPACE (0x2004)"_ns; + case 0x2005: + return "FOUR-PER-EM SPACE (0x2005)"_ns; + case 0x2006: + return "SIX-PER-EM SPACE (0x2006)"_ns; + case 0x2007: + return "FIGURE SPACE (0x2007)"_ns; + case 0x2008: + return "PUNCTUATION SPACE (0x2008)"_ns; + case 0x2009: + return "THIN SPACE (0x2009)"_ns; + case 0x200A: + return "HAIR SPACE (0x200A)"_ns; + case 0x200B: + return "ZERO WIDTH SPACE (0x200B)"_ns; + case 0x200C: + return "ZERO WIDTH NON-JOINER (0x200C)"_ns; + case 0x200D: + return "ZERO WIDTH JOINER (0x200D)"_ns; + case 0x200E: + return "LEFT-TO-RIGHT MARK (0x200E)"_ns; + case 0x200F: + return "RIGHT-TO-LEFT MARK (0x200F)"_ns; + case 0x2029: + return "PARAGRAPH SEPARATOR (0x2029)"_ns; + case 0x202A: + return "LEFT-TO-RIGHT EMBEDDING (0x202A)"_ns; + case 0x202B: + return "RIGHT-TO-LEFT EMBEDDING (0x202B)"_ns; + case 0x202D: + return "LEFT-TO-RIGHT OVERRIDE (0x202D)"_ns; + case 0x202E: + return "RIGHT-TO-LEFT OVERRIDE (0x202E)"_ns; + case 0x202F: + return "NARROW NO-BREAK SPACE (0x202F)"_ns; + case 0x205F: + return "MEDIUM MATHEMATICAL SPACE (0x205F)"_ns; + case 0x2060: + return "WORD JOINER (0x2060)"_ns; + case 0x2066: + return "LEFT-TO-RIGHT ISOLATE (0x2066)"_ns; + case 0x2067: + return "RIGHT-TO-LEFT ISOLATE (0x2067)"_ns; + case 0x3000: + return "IDEOGRAPHIC SPACE (0x3000)"_ns; + case 0xFEFF: + return "ZERO WIDTH NO-BREAK SPACE (0xFEFF)"_ns; + default: { + if (aChar < ' ' || (aChar >= 0x80 && aChar < 0xA0)) { + return nsPrintfCString("Control (0x%04X)", aChar); + } + if (NS_IS_HIGH_SURROGATE(aChar)) { + return nsPrintfCString("High Surrogate (0x%04X)", aChar); + } + if (NS_IS_LOW_SURROGATE(aChar)) { + return nsPrintfCString("Low Surrogate (0x%04X)", aChar); + } + if (gfxFontUtils::IsVarSelector(aChar)) { + return IS_IN_BMP(aChar) + ? nsPrintfCString("Variant Selector (0x%04X)", aChar) + : nsPrintfCString("Variant Selector (0x%08X)", aChar); + } + nsAutoString utf16Str; + AppendUCS4ToUTF16(aChar, utf16Str); + return IS_IN_BMP(aChar) + ? nsPrintfCString("'%s' (0x%04X)", + NS_ConvertUTF16toUTF8(utf16Str).get(), aChar) + : nsPrintfCString("'%s' (0x%08X)", + NS_ConvertUTF16toUTF8(utf16Str).get(), + aChar); + } + } +} + +namespace widget { + +std::ostream& operator<<(std::ostream& aStream, const IMEEnabled& aEnabled) { + switch (aEnabled) { + case IMEEnabled::Disabled: + return aStream << "DISABLED"; + case IMEEnabled::Enabled: + return aStream << "ENABLED"; + case IMEEnabled::Password: + return aStream << "PASSWORD"; + case IMEEnabled::Unknown: + return aStream << "illegal value"; + } + MOZ_ASSERT_UNREACHABLE("Add a case to handle your new IMEEnabled value"); + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, const IMEState::Open& aOpen) { + switch (aOpen) { + case IMEState::DONT_CHANGE_OPEN_STATE: + aStream << "DONT_CHANGE_OPEN_STATE"; + break; + case IMEState::OPEN: + aStream << "OPEN"; + break; + case IMEState::CLOSED: + aStream << "CLOSED"; + break; + default: + aStream << "illegal value"; + break; + } + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, const IMEState& aState) { + aStream << "{ mEnabled=" << aState.mEnabled << ", mOpen=" << aState.mOpen + << " }"; + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, + const InputContext::Origin& aOrigin) { + switch (aOrigin) { + case InputContext::ORIGIN_MAIN: + aStream << "ORIGIN_MAIN"; + break; + case InputContext::ORIGIN_CONTENT: + aStream << "ORIGIN_CONTENT"; + break; + default: + aStream << "illegal value"; + break; + } + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, const InputContext& aContext) { + aStream << "{ mIMEState=" << aContext.mIMEState + << ", mOrigin=" << aContext.mOrigin << ", mHTMLInputType=\"" + << aContext.mHTMLInputType << "\", mHTMLInputMode=\"" + << aContext.mHTMLInputMode << "\", mActionHint=\"" + << aContext.mActionHint << "\", mAutocapitalize=\"" + << aContext.mAutocapitalize << "\", mMayBeIMEUnaware=" + << (aContext.mMayBeIMEUnaware ? "true" : "false") + << ", mIsPrivateBrowsing=" + << (aContext.mInPrivateBrowsing ? "true" : "false") << " }"; + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, + const InputContextAction::Cause& aCause) { + switch (aCause) { + case InputContextAction::CAUSE_UNKNOWN: + aStream << "CAUSE_UNKNOWN"; + break; + case InputContextAction::CAUSE_UNKNOWN_CHROME: + aStream << "CAUSE_UNKNOWN_CHROME"; + break; + case InputContextAction::CAUSE_KEY: + aStream << "CAUSE_KEY"; + break; + case InputContextAction::CAUSE_MOUSE: + aStream << "CAUSE_MOUSE"; + break; + case InputContextAction::CAUSE_TOUCH: + aStream << "CAUSE_TOUCH"; + break; + case InputContextAction::CAUSE_LONGPRESS: + aStream << "CAUSE_LONGPRESS"; + break; + case InputContextAction::CAUSE_UNKNOWN_DURING_NON_KEYBOARD_INPUT: + aStream << "CAUSE_UNKNOWN_DURING_NON_KEYBOARD_INPUT"; + break; + case InputContextAction::CAUSE_UNKNOWN_DURING_KEYBOARD_INPUT: + aStream << "CAUSE_UNKNOWN_DURING_KEYBOARD_INPUT"; + break; + default: + aStream << "illegal value"; + break; + } + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, + const InputContextAction::FocusChange& aFocusChange) { + switch (aFocusChange) { + case InputContextAction::FOCUS_NOT_CHANGED: + aStream << "FOCUS_NOT_CHANGED"; + break; + case InputContextAction::GOT_FOCUS: + aStream << "GOT_FOCUS"; + break; + case InputContextAction::LOST_FOCUS: + aStream << "LOST_FOCUS"; + break; + case InputContextAction::MENU_GOT_PSEUDO_FOCUS: + aStream << "MENU_GOT_PSEUDO_FOCUS"; + break; + case InputContextAction::MENU_LOST_PSEUDO_FOCUS: + aStream << "MENU_LOST_PSEUDO_FOCUS"; + break; + case InputContextAction::WIDGET_CREATED: + aStream << "WIDGET_CREATED"; + break; + default: + aStream << "illegal value"; + break; + } + return aStream; +} + +std::ostream& operator<<( + std::ostream& aStream, + const IMENotification::SelectionChangeDataBase& aData) { + if (!aData.IsInitialized()) { + aStream << "{ IsInitialized()=false }"; + return aStream; + } + if (!aData.HasRange()) { + aStream << "{ HasRange()=false }"; + return aStream; + } + aStream << "{ mOffset=" << aData.mOffset; + if (aData.mString->Length() > 20) { + aStream << ", mString.Length()=" << aData.mString->Length(); + } else { + aStream << ", mString=\"" << NS_ConvertUTF16toUTF8(*aData.mString) + << "\" (Length()=" << aData.mString->Length() << ")"; + } + + aStream << ", GetWritingMode()=" << aData.GetWritingMode() + << ", mReversed=" << (aData.mReversed ? "true" : "false") + << ", mCausedByComposition=" + << (aData.mCausedByComposition ? "true" : "false") + << ", mCausedBySelectionEvent=" + << (aData.mCausedBySelectionEvent ? "true" : "false") + << ", mOccurredDuringComposition=" + << (aData.mOccurredDuringComposition ? "true" : "false") << " }"; + return aStream; +} + +std::ostream& operator<<(std::ostream& aStream, + const IMENotification::TextChangeDataBase& aData) { + if (!aData.IsValid()) { + aStream << "{ IsValid()=false }"; + return aStream; + } + aStream << "{ mStartOffset=" << aData.mStartOffset + << ", mRemoveEndOffset=" << aData.mRemovedEndOffset + << ", mAddedEndOffset=" << aData.mAddedEndOffset + << ", mCausedOnlyByComposition=" + << (aData.mCausedOnlyByComposition ? "true" : "false") + << ", mIncludingChangesDuringComposition=" + << (aData.mIncludingChangesDuringComposition ? "true" : "false") + << ", mIncludingChangesWithoutComposition=" + << (aData.mIncludingChangesWithoutComposition ? "true" : "false") + << " }"; + return aStream; +} + +/****************************************************************************** + * IMENotification::SelectionChangeDataBase + ******************************************************************************/ + +void IMENotification::SelectionChangeDataBase::Assign( + const WidgetQueryContentEvent& aQuerySelectedTextEvent) { + MOZ_ASSERT(aQuerySelectedTextEvent.mMessage == eQuerySelectedText); + MOZ_ASSERT(aQuerySelectedTextEvent.Succeeded()); + + if (!(mIsInitialized = aQuerySelectedTextEvent.Succeeded())) { + ClearSelectionData(); + return; + } + if ((mHasRange = aQuerySelectedTextEvent.FoundSelection())) { + mOffset = aQuerySelectedTextEvent.mReply->StartOffset(); + *mString = aQuerySelectedTextEvent.mReply->DataRef(); + mReversed = aQuerySelectedTextEvent.mReply->mReversed; + SetWritingMode(aQuerySelectedTextEvent.mReply->WritingModeRef()); + } else { + mOffset = UINT32_MAX; + mString->Truncate(); + mReversed = false; + // Let's keep the writing mode for avoiding temporarily changing the + // writing mode at no selection range. + } +} + +void IMENotification::SelectionChangeDataBase::SetWritingMode( + const WritingMode& aWritingMode) { + mWritingModeBits = aWritingMode.GetBits(); +} + +WritingMode IMENotification::SelectionChangeDataBase::GetWritingMode() const { + return WritingMode(mWritingModeBits); +} + +bool IMENotification::SelectionChangeDataBase::EqualsRange( + const ContentSelection& aContentSelection) const { + if (aContentSelection.HasRange() != HasRange()) { + return false; + } + if (!HasRange()) { + return true; + } + return mOffset == aContentSelection.OffsetAndDataRef().StartOffset() && + *mString == aContentSelection.OffsetAndDataRef().DataRef(); +} + +bool IMENotification::SelectionChangeDataBase::EqualsRangeAndWritingMode( + const ContentSelection& aContentSelection) const { + return EqualsRange(aContentSelection) && + mWritingModeBits == aContentSelection.WritingModeRef().GetBits(); +} + +} // namespace widget +} // namespace mozilla |