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gecko-dev/widget/IMEData.cpp
Masayuki Nakano 94eaae30be Bug 1678553 - part 1: Make TSFTextStore::Composition manage start offset and composition string with a class r=m_kato 
This patch creates `OffsetAndData` for managing start offset in flat-text
content and composition string in one place.  And it supports stream to
log it easier.

Then, this patch makes `TSFTextStore::Composition` inherits it for sharing
similar code with other similar data.

Note that the new class guarantees that it won't return overflown offset
and it won't cut overflown string from max offset.

Differential Revision: https://phabricator.services.mozilla.com/D97947
2020-11-26 10:34:13 +00:00

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/* -*- 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 "gfxFontUtils.h"
#include "mozilla/WritingModes.h"
#include "nsPrintfCString.h"
#include "nsString.h"
namespace mozilla {
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) {
Append(" ");
}
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) {
Append(" ...");
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++;
}
}
Append("\"");
}
// 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 IMEState::Enabled& aEnabled) {
switch (aEnabled) {
case IMEState::DISABLED:
aStream << "DISABLED";
break;
case IMEState::ENABLED:
aStream << "ENABLED";
break;
case IMEState::PASSWORD:
aStream << "PASSWORD";
break;
case IMEState::PLUGIN:
aStream << "PLUGIN";
break;
default:
aStream << "illegal value";
break;
}
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 << "\", mHTMLInputInputmode=\""
<< aContext.mHTMLInputInputmode << "\", 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.IsValid()) {
aStream << "{ IsValid()=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;
}
} // namespace widget
} // namespace mozilla
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