2235 lines
79 KiB
C++
2235 lines
79 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set ts=4 et sw=4 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Logging.h"
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#include "prtime.h"
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#include "IMContextWrapper.h"
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#include "nsWindow.h"
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#include "mozilla/AutoRestore.h"
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#include "mozilla/Likely.h"
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#include "mozilla/MiscEvents.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/TextEvents.h"
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#include "WritingModes.h"
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#include "mozilla/unused.h"
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namespace mozilla {
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namespace widget {
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PRLogModuleInfo* gGtkIMLog = nullptr;
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static inline const char*
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ToChar(bool aBool)
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{
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return aBool ? "true" : "false";
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}
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static const char*
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GetRangeTypeName(uint32_t aRangeType)
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{
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switch (aRangeType) {
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case NS_TEXTRANGE_RAWINPUT:
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return "NS_TEXTRANGE_RAWINPUT";
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case NS_TEXTRANGE_CONVERTEDTEXT:
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return "NS_TEXTRANGE_CONVERTEDTEXT";
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case NS_TEXTRANGE_SELECTEDRAWTEXT:
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return "NS_TEXTRANGE_SELECTEDRAWTEXT";
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case NS_TEXTRANGE_SELECTEDCONVERTEDTEXT:
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return "NS_TEXTRANGE_SELECTEDCONVERTEDTEXT";
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case NS_TEXTRANGE_CARETPOSITION:
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return "NS_TEXTRANGE_CARETPOSITION";
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default:
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return "UNKNOWN SELECTION TYPE!!";
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}
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}
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static const char*
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GetEnabledStateName(uint32_t aState)
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{
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switch (aState) {
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case IMEState::DISABLED:
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return "DISABLED";
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case IMEState::ENABLED:
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return "ENABLED";
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case IMEState::PASSWORD:
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return "PASSWORD";
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case IMEState::PLUGIN:
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return "PLUG_IN";
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default:
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return "UNKNOWN ENABLED STATUS!!";
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}
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}
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static const char*
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GetEventType(GdkEventKey* aKeyEvent)
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{
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switch (aKeyEvent->type) {
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case GDK_KEY_PRESS:
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return "GDK_KEY_PRESS";
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case GDK_KEY_RELEASE:
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return "GDK_KEY_RELEASE";
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default:
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return "Unknown";
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}
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}
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class GetWritingModeName : public nsAutoCString
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{
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public:
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explicit GetWritingModeName(const WritingMode& aWritingMode)
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{
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if (!aWritingMode.IsVertical()) {
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AssignLiteral("Horizontal");
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return;
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}
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if (aWritingMode.IsVerticalLR()) {
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AssignLiteral("Vertical (LTR)");
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return;
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}
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AssignLiteral("Vertical (RTL)");
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}
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virtual ~GetWritingModeName() {}
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};
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class GetTextRangeStyleText final : public nsAutoCString
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{
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public:
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explicit GetTextRangeStyleText(const TextRangeStyle& aStyle)
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{
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if (!aStyle.IsDefined()) {
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AssignLiteral("{ IsDefined()=false }");
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return;
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}
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if (aStyle.IsLineStyleDefined()) {
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AppendLiteral("{ mLineStyle=");
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AppendLineStyle(aStyle.mLineStyle);
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if (aStyle.IsUnderlineColorDefined()) {
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AppendLiteral(", mUnderlineColor=");
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AppendColor(aStyle.mUnderlineColor);
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} else {
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AppendLiteral(", IsUnderlineColorDefined=false");
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}
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} else {
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AppendLiteral("{ IsLineStyleDefined()=false");
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}
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if (aStyle.IsForegroundColorDefined()) {
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AppendLiteral(", mForegroundColor=");
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AppendColor(aStyle.mForegroundColor);
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} else {
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AppendLiteral(", IsForegroundColorDefined()=false");
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}
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if (aStyle.IsBackgroundColorDefined()) {
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AppendLiteral(", mBackgroundColor=");
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AppendColor(aStyle.mBackgroundColor);
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} else {
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AppendLiteral(", IsBackgroundColorDefined()=false");
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}
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AppendLiteral(" }");
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}
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void AppendLineStyle(uint8_t aLineStyle)
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{
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switch (aLineStyle) {
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case TextRangeStyle::LINESTYLE_NONE:
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AppendLiteral("LINESTYLE_NONE");
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break;
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case TextRangeStyle::LINESTYLE_SOLID:
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AppendLiteral("LINESTYLE_SOLID");
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break;
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case TextRangeStyle::LINESTYLE_DOTTED:
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AppendLiteral("LINESTYLE_DOTTED");
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break;
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case TextRangeStyle::LINESTYLE_DASHED:
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AppendLiteral("LINESTYLE_DASHED");
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break;
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case TextRangeStyle::LINESTYLE_DOUBLE:
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AppendLiteral("LINESTYLE_DOUBLE");
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break;
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case TextRangeStyle::LINESTYLE_WAVY:
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AppendLiteral("LINESTYLE_WAVY");
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break;
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default:
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AppendPrintf("Invalid(0x%02X)", aLineStyle);
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break;
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}
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}
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void AppendColor(nscolor aColor)
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{
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AppendPrintf("{ R=0x%02X, G=0x%02X, B=0x%02X, A=0x%02X }",
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NS_GET_R(aColor), NS_GET_G(aColor), NS_GET_B(aColor),
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NS_GET_A(aColor));
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}
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virtual ~GetTextRangeStyleText() {};
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};
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const static bool kUseSimpleContextDefault = MOZ_WIDGET_GTK == 2;
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/******************************************************************************
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* IMContextWrapper
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******************************************************************************/
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IMContextWrapper* IMContextWrapper::sLastFocusedContext = nullptr;
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bool IMContextWrapper::sUseSimpleContext;
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IMContextWrapper::IMContextWrapper(nsWindow* aOwnerWindow)
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: mOwnerWindow(aOwnerWindow)
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, mLastFocusedWindow(nullptr)
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, mContext(nullptr)
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, mSimpleContext(nullptr)
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, mDummyContext(nullptr)
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, mComposingContext(nullptr)
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, mCompositionStart(UINT32_MAX)
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, mProcessingKeyEvent(nullptr)
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, mCompositionState(eCompositionState_NotComposing)
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, mIsIMFocused(false)
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, mIsDeletingSurrounding(false)
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, mLayoutChanged(false)
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, mSetCursorPositionOnKeyEvent(true)
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, mPendingResettingIMContext(false)
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{
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if (!gGtkIMLog) {
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gGtkIMLog = PR_NewLogModule("nsGtkIMModuleWidgets");
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}
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static bool sFirstInstance = true;
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if (sFirstInstance) {
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sFirstInstance = false;
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sUseSimpleContext =
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Preferences::GetBool(
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"intl.ime.use_simple_context_on_password_field",
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kUseSimpleContextDefault);
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}
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Init();
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}
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void
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IMContextWrapper::Init()
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{
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MOZ_LOG(gGtkIMLog, LogLevel::Info,
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("GTKIM: %p Init(), mOwnerWindow=%p",
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this, mOwnerWindow));
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MozContainer* container = mOwnerWindow->GetMozContainer();
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NS_PRECONDITION(container, "container is null");
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GdkWindow* gdkWindow = gtk_widget_get_window(GTK_WIDGET(container));
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// NOTE: gtk_im_*_new() abort (kill) the whole process when it fails.
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// So, we don't need to check the result.
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// Normal context.
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mContext = gtk_im_multicontext_new();
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gtk_im_context_set_client_window(mContext, gdkWindow);
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g_signal_connect(mContext, "preedit_changed",
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G_CALLBACK(IMContextWrapper::OnChangeCompositionCallback), this);
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g_signal_connect(mContext, "retrieve_surrounding",
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G_CALLBACK(IMContextWrapper::OnRetrieveSurroundingCallback), this);
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g_signal_connect(mContext, "delete_surrounding",
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G_CALLBACK(IMContextWrapper::OnDeleteSurroundingCallback), this);
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g_signal_connect(mContext, "commit",
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G_CALLBACK(IMContextWrapper::OnCommitCompositionCallback), this);
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g_signal_connect(mContext, "preedit_start",
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G_CALLBACK(IMContextWrapper::OnStartCompositionCallback), this);
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g_signal_connect(mContext, "preedit_end",
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G_CALLBACK(IMContextWrapper::OnEndCompositionCallback), this);
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// Simple context
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if (sUseSimpleContext) {
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mSimpleContext = gtk_im_context_simple_new();
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gtk_im_context_set_client_window(mSimpleContext, gdkWindow);
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g_signal_connect(mSimpleContext, "preedit_changed",
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G_CALLBACK(&IMContextWrapper::OnChangeCompositionCallback),
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this);
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g_signal_connect(mSimpleContext, "retrieve_surrounding",
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G_CALLBACK(&IMContextWrapper::OnRetrieveSurroundingCallback),
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this);
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g_signal_connect(mSimpleContext, "delete_surrounding",
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G_CALLBACK(&IMContextWrapper::OnDeleteSurroundingCallback),
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this);
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g_signal_connect(mSimpleContext, "commit",
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G_CALLBACK(&IMContextWrapper::OnCommitCompositionCallback),
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this);
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g_signal_connect(mSimpleContext, "preedit_start",
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G_CALLBACK(IMContextWrapper::OnStartCompositionCallback),
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this);
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g_signal_connect(mSimpleContext, "preedit_end",
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G_CALLBACK(IMContextWrapper::OnEndCompositionCallback),
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this);
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}
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// Dummy context
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mDummyContext = gtk_im_multicontext_new();
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gtk_im_context_set_client_window(mDummyContext, gdkWindow);
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}
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IMContextWrapper::~IMContextWrapper()
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{
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if (this == sLastFocusedContext) {
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sLastFocusedContext = nullptr;
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}
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MOZ_LOG(gGtkIMLog, LogLevel::Info,
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("GTKIM: %p ~IMContextWrapper()", this));
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}
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nsIMEUpdatePreference
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IMContextWrapper::GetIMEUpdatePreference() const
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{
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// While a plugin has focus, IMContextWrapper doesn't need any
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// notifications.
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if (mInputContext.mIMEState.mEnabled == IMEState::PLUGIN) {
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return nsIMEUpdatePreference();
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}
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nsIMEUpdatePreference::Notifications notifications =
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nsIMEUpdatePreference::NOTIFY_SELECTION_CHANGE;
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// If it's not enabled, we don't need position change notification.
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if (IsEnabled()) {
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notifications |= nsIMEUpdatePreference::NOTIFY_POSITION_CHANGE;
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}
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nsIMEUpdatePreference updatePreference(notifications);
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// We shouldn't notify IME of selection change caused by changes of
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// composition string. Therefore, we don't need to be notified selection
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// changes which are caused by compositionchange events handled.
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updatePreference.DontNotifyChangesCausedByComposition();
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return updatePreference;
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}
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void
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IMContextWrapper::OnDestroyWindow(nsWindow* aWindow)
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{
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MOZ_LOG(gGtkIMLog, LogLevel::Info,
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("GTKIM: %p OnDestroyWindow(aWindow=%p), mLastFocusedWindow=%p, "
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"mOwnerWindow=%p, mLastFocusedModule=%p",
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this, aWindow, mLastFocusedWindow, mOwnerWindow, sLastFocusedContext));
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NS_PRECONDITION(aWindow, "aWindow must not be null");
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if (mLastFocusedWindow == aWindow) {
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EndIMEComposition(aWindow);
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if (mIsIMFocused) {
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Blur();
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}
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mLastFocusedWindow = nullptr;
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}
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if (mOwnerWindow != aWindow) {
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return;
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}
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if (sLastFocusedContext == this) {
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sLastFocusedContext = nullptr;
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}
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/**
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* NOTE:
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* The given window is the owner of this, so, we must release the
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* contexts now. But that might be referred from other nsWindows
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* (they are children of this. But we don't know why there are the
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* cases). So, we need to clear the pointers that refers to contexts
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* and this if the other referrers are still alive. See bug 349727.
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*/
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if (mContext) {
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PrepareToDestroyContext(mContext);
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gtk_im_context_set_client_window(mContext, nullptr);
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g_object_unref(mContext);
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mContext = nullptr;
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}
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if (mSimpleContext) {
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gtk_im_context_set_client_window(mSimpleContext, nullptr);
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g_object_unref(mSimpleContext);
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mSimpleContext = nullptr;
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}
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if (mDummyContext) {
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// mContext and mDummyContext have the same slaveType and signal_data
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// so no need for another workaround_gtk_im_display_closed.
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gtk_im_context_set_client_window(mDummyContext, nullptr);
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g_object_unref(mDummyContext);
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mDummyContext = nullptr;
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}
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if (NS_WARN_IF(mComposingContext)) {
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g_object_unref(mComposingContext);
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mComposingContext = nullptr;
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}
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mOwnerWindow = nullptr;
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mLastFocusedWindow = nullptr;
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mInputContext.mIMEState.mEnabled = IMEState::DISABLED;
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MOZ_LOG(gGtkIMLog, LogLevel::Debug,
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("GTKIM: %p OnDestroyWindow(), succeeded, Completely destroyed",
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this));
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}
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// Work around gtk bug http://bugzilla.gnome.org/show_bug.cgi?id=483223:
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// (and the similar issue of GTK+ IIIM)
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// The GTK+ XIM and IIIM modules register handlers for the "closed" signal
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// on the display, but:
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// * The signal handlers are not disconnected when the module is unloaded.
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//
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// The GTK+ XIM module has another problem:
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// * When the signal handler is run (with the module loaded) it tries
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// XFree (and fails) on a pointer that did not come from Xmalloc.
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//
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// To prevent these modules from being unloaded, use static variables to
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// hold ref of GtkIMContext class.
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// For GTK+ XIM module, to prevent the signal handler from being run,
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// find the signal handlers and remove them.
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//
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// GtkIMContextXIMs share XOpenIM connections and display closed signal
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// handlers (where possible).
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void
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IMContextWrapper::PrepareToDestroyContext(GtkIMContext* aContext)
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{
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#if (MOZ_WIDGET_GTK == 2)
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT(aContext);
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GtkIMContext *slave = multicontext->slave;
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#else
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GtkIMContext *slave = nullptr; //TODO GTK3
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#endif
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if (!slave) {
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return;
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}
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GType slaveType = G_TYPE_FROM_INSTANCE(slave);
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const gchar *im_type_name = g_type_name(slaveType);
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if (strcmp(im_type_name, "GtkIMContextIIIM") == 0) {
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// Add a reference to prevent the IIIM module from being unloaded
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static gpointer gtk_iiim_context_class =
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g_type_class_ref(slaveType);
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// Mute unused variable warning:
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(void)gtk_iiim_context_class;
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}
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}
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void
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IMContextWrapper::OnFocusWindow(nsWindow* aWindow)
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{
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if (MOZ_UNLIKELY(IsDestroyed())) {
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return;
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}
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MOZ_LOG(gGtkIMLog, LogLevel::Info,
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("GTKIM: %p OnFocusWindow(aWindow=%p), mLastFocusedWindow=%p",
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this, aWindow, mLastFocusedWindow));
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mLastFocusedWindow = aWindow;
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Focus();
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}
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void
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IMContextWrapper::OnBlurWindow(nsWindow* aWindow)
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{
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if (MOZ_UNLIKELY(IsDestroyed())) {
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return;
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}
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MOZ_LOG(gGtkIMLog, LogLevel::Info,
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("GTKIM: %p OnBlurWindow(aWindow=%p), mLastFocusedWindow=%p, "
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"mIsIMFocused=%s",
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this, aWindow, mLastFocusedWindow, ToChar(mIsIMFocused)));
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if (!mIsIMFocused || mLastFocusedWindow != aWindow) {
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return;
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}
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Blur();
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}
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bool
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IMContextWrapper::OnKeyEvent(nsWindow* aCaller,
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GdkEventKey* aEvent,
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bool aKeyDownEventWasSent /* = false */)
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{
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NS_PRECONDITION(aEvent, "aEvent must be non-null");
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if (!mInputContext.mIMEState.MaybeEditable() ||
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MOZ_UNLIKELY(IsDestroyed())) {
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return false;
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}
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MOZ_LOG(gGtkIMLog, LogLevel::Info,
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("GTKIM: %p OnKeyEvent(aCaller=%p, aKeyDownEventWasSent=%s), "
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"mCompositionState=%s, current context=%p, active context=%p, "
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"aEvent(%p): { type=%s, keyval=%s, unicode=0x%X }",
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this, aCaller, ToChar(aKeyDownEventWasSent),
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GetCompositionStateName(), GetCurrentContext(), GetActiveContext(),
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aEvent, GetEventType(aEvent), gdk_keyval_name(aEvent->keyval),
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gdk_keyval_to_unicode(aEvent->keyval)));
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if (aCaller != mLastFocusedWindow) {
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MOZ_LOG(gGtkIMLog, LogLevel::Error,
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("GTKIM: %p OnKeyEvent(), FAILED, the caller isn't focused "
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"window, mLastFocusedWindow=%p",
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this, mLastFocusedWindow));
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return false;
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}
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// Even if old IM context has composition, key event should be sent to
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// current context since the user expects so.
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GtkIMContext* currentContext = GetCurrentContext();
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if (MOZ_UNLIKELY(!currentContext)) {
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MOZ_LOG(gGtkIMLog, LogLevel::Error,
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("GTKIM: %p OnKeyEvent(), FAILED, there are no context",
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this));
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return false;
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}
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|
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if (mSetCursorPositionOnKeyEvent) {
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SetCursorPosition(currentContext);
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mSetCursorPositionOnKeyEvent = false;
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}
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mKeyDownEventWasSent = aKeyDownEventWasSent;
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mFilterKeyEvent = true;
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mProcessingKeyEvent = aEvent;
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gboolean isFiltered =
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gtk_im_context_filter_keypress(currentContext, aEvent);
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mProcessingKeyEvent = nullptr;
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// We filter the key event if the event was not committed (because
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// it's probably part of a composition) or if the key event was
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// committed _and_ changed. This way we still let key press
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// events go through as simple key press events instead of
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// composed characters.
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bool filterThisEvent = isFiltered && mFilterKeyEvent;
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|
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if (IsComposingOnCurrentContext() && !isFiltered) {
|
|
if (aEvent->type == GDK_KEY_PRESS) {
|
|
if (!mDispatchedCompositionString.IsEmpty()) {
|
|
// If there is composition string, we shouldn't dispatch
|
|
// any keydown events during composition.
|
|
filterThisEvent = true;
|
|
} else {
|
|
// A Hangul input engine for SCIM doesn't emit preedit_end
|
|
// signal even when composition string becomes empty. On the
|
|
// other hand, we should allow to make composition with empty
|
|
// string for other languages because there *might* be such
|
|
// IM. For compromising this issue, we should dispatch
|
|
// compositionend event, however, we don't need to reset IM
|
|
// actually.
|
|
DispatchCompositionCommitEvent(currentContext, &EmptyString());
|
|
filterThisEvent = false;
|
|
}
|
|
} else {
|
|
// Key release event may not be consumed by IM, however, we
|
|
// shouldn't dispatch any keyup event during composition.
|
|
filterThisEvent = true;
|
|
}
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p OnKeyEvent(), succeeded, filterThisEvent=%s "
|
|
"(isFiltered=%s, mFilterKeyEvent=%s), mCompositionState=%s",
|
|
this, ToChar(filterThisEvent), ToChar(isFiltered),
|
|
ToChar(mFilterKeyEvent), GetCompositionStateName()));
|
|
|
|
return filterThisEvent;
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnFocusChangeInGecko(bool aFocus)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnFocusChangeInGecko(aFocus=%s), "
|
|
"mCompositionState=%s, mIsIMFocused=%s",
|
|
this, ToChar(aFocus), GetCompositionStateName(),
|
|
ToChar(mIsIMFocused)));
|
|
|
|
// We shouldn't carry over the removed string to another editor.
|
|
mSelectedString.Truncate();
|
|
mSelection.Clear();
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::ResetIME()
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p ResetIME(), mCompositionState=%s, mIsIMFocused=%s",
|
|
this, GetCompositionStateName(), ToChar(mIsIMFocused)));
|
|
|
|
GtkIMContext* activeContext = GetActiveContext();
|
|
if (MOZ_UNLIKELY(!activeContext)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p ResetIME(), FAILED, there are no context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
RefPtr<IMContextWrapper> kungFuDeathGrip(this);
|
|
RefPtr<nsWindow> lastFocusedWindow(mLastFocusedWindow);
|
|
|
|
mPendingResettingIMContext = false;
|
|
gtk_im_context_reset(activeContext);
|
|
|
|
// The last focused window might have been destroyed by a DOM event handler
|
|
// which was called by us during a call of gtk_im_context_reset().
|
|
if (!lastFocusedWindow ||
|
|
NS_WARN_IF(lastFocusedWindow != mLastFocusedWindow) ||
|
|
lastFocusedWindow->Destroyed()) {
|
|
return;
|
|
}
|
|
|
|
nsAutoString compositionString;
|
|
GetCompositionString(activeContext, compositionString);
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p ResetIME() called gtk_im_context_reset(), "
|
|
"activeContext=%p, mCompositionState=%s, compositionString=%s, "
|
|
"mIsIMFocused=%s",
|
|
this, activeContext, GetCompositionStateName(),
|
|
NS_ConvertUTF16toUTF8(compositionString).get(),
|
|
ToChar(mIsIMFocused)));
|
|
|
|
// XXX IIIMF (ATOK X3 which is one of the Language Engine of it is still
|
|
// used in Japan!) sends only "preedit_changed" signal with empty
|
|
// composition string synchronously. Therefore, if composition string
|
|
// is now empty string, we should assume that the IME won't send
|
|
// "commit" signal.
|
|
if (IsComposing() && compositionString.IsEmpty()) {
|
|
// WARNING: The widget might have been gone after this.
|
|
DispatchCompositionCommitEvent(activeContext, &EmptyString());
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
IMContextWrapper::EndIMEComposition(nsWindow* aCaller)
|
|
{
|
|
if (MOZ_UNLIKELY(IsDestroyed())) {
|
|
return NS_OK;
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p EndIMEComposition(aCaller=%p), "
|
|
"mCompositionState=%s",
|
|
this, aCaller, GetCompositionStateName()));
|
|
|
|
if (aCaller != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p EndIMEComposition(), FAILED, the caller isn't "
|
|
"focused window, mLastFocusedWindow=%p",
|
|
this, mLastFocusedWindow));
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!IsComposing()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Currently, GTK has API neither to commit nor to cancel composition
|
|
// forcibly. Therefore, TextComposition will recompute commit string for
|
|
// the request even if native IME will cause unexpected commit string.
|
|
// So, we don't need to emulate commit or cancel composition with
|
|
// proper composition events.
|
|
// XXX ResetIME() might not enough for finishing compositoin on some
|
|
// environments. We should emulate focus change too because some IMEs
|
|
// may commit or cancel composition at blur.
|
|
ResetIME();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnLayoutChange()
|
|
{
|
|
if (MOZ_UNLIKELY(IsDestroyed())) {
|
|
return;
|
|
}
|
|
|
|
if (IsComposing()) {
|
|
SetCursorPosition(GetActiveContext());
|
|
} else {
|
|
// If not composing, candidate window position is updated before key
|
|
// down
|
|
mSetCursorPositionOnKeyEvent = true;
|
|
}
|
|
mLayoutChanged = true;
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnUpdateComposition()
|
|
{
|
|
if (MOZ_UNLIKELY(IsDestroyed())) {
|
|
return;
|
|
}
|
|
|
|
if (!IsComposing()) {
|
|
// Composition has been committed. So we need update selection for
|
|
// caret later
|
|
mSelection.Clear();
|
|
EnsureToCacheSelection();
|
|
mSetCursorPositionOnKeyEvent = true;
|
|
}
|
|
|
|
// If we've already set candidate window position, we don't need to update
|
|
// the position with update composition notification.
|
|
if (!mLayoutChanged) {
|
|
SetCursorPosition(GetActiveContext());
|
|
}
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::SetInputContext(nsWindow* aCaller,
|
|
const InputContext* aContext,
|
|
const InputContextAction* aAction)
|
|
{
|
|
if (MOZ_UNLIKELY(IsDestroyed())) {
|
|
return;
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p SetInputContext(aCaller=%p, aContext={ mIMEState={ "
|
|
"mEnabled=%s }, mHTMLInputType=%s })",
|
|
this, aCaller, GetEnabledStateName(aContext->mIMEState.mEnabled),
|
|
NS_ConvertUTF16toUTF8(aContext->mHTMLInputType).get()));
|
|
|
|
if (aCaller != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetInputContext(), FAILED, "
|
|
"the caller isn't focused window, mLastFocusedWindow=%p",
|
|
this, mLastFocusedWindow));
|
|
return;
|
|
}
|
|
|
|
if (!mContext) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetInputContext(), FAILED, "
|
|
"there are no context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
|
|
if (sLastFocusedContext != this) {
|
|
mInputContext = *aContext;
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p SetInputContext(), succeeded, "
|
|
"but we're not active",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
bool changingEnabledState =
|
|
aContext->mIMEState.mEnabled != mInputContext.mIMEState.mEnabled ||
|
|
aContext->mHTMLInputType != mInputContext.mHTMLInputType;
|
|
|
|
// Release current IME focus if IME is enabled.
|
|
if (changingEnabledState && mInputContext.mIMEState.MaybeEditable()) {
|
|
EndIMEComposition(mLastFocusedWindow);
|
|
Blur();
|
|
}
|
|
|
|
mInputContext = *aContext;
|
|
|
|
if (changingEnabledState) {
|
|
#if (MOZ_WIDGET_GTK == 3)
|
|
static bool sInputPurposeSupported = !gtk_check_version(3, 6, 0);
|
|
if (sInputPurposeSupported && mInputContext.mIMEState.MaybeEditable()) {
|
|
GtkIMContext* currentContext = GetCurrentContext();
|
|
if (currentContext) {
|
|
GtkInputPurpose purpose = GTK_INPUT_PURPOSE_FREE_FORM;
|
|
const nsString& inputType = mInputContext.mHTMLInputType;
|
|
// Password case has difficult issue. Desktop IMEs disable
|
|
// composition if input-purpose is password.
|
|
// For disabling IME on |ime-mode: disabled;|, we need to check
|
|
// mEnabled value instead of inputType value. This hack also
|
|
// enables composition on
|
|
// <input type="password" style="ime-mode: enabled;">.
|
|
// This is right behavior of ime-mode on desktop.
|
|
//
|
|
// On the other hand, IME for tablet devices may provide a
|
|
// specific software keyboard for password field. If so,
|
|
// the behavior might look strange on both:
|
|
// <input type="text" style="ime-mode: disabled;">
|
|
// <input type="password" style="ime-mode: enabled;">
|
|
//
|
|
// Temporarily, we should focus on desktop environment for now.
|
|
// I.e., let's ignore tablet devices for now. When somebody
|
|
// reports actual trouble on tablet devices, we should try to
|
|
// look for a way to solve actual problem.
|
|
if (mInputContext.mIMEState.mEnabled == IMEState::PASSWORD) {
|
|
purpose = GTK_INPUT_PURPOSE_PASSWORD;
|
|
} else if (inputType.EqualsLiteral("email")) {
|
|
purpose = GTK_INPUT_PURPOSE_EMAIL;
|
|
} else if (inputType.EqualsLiteral("url")) {
|
|
purpose = GTK_INPUT_PURPOSE_URL;
|
|
} else if (inputType.EqualsLiteral("tel")) {
|
|
purpose = GTK_INPUT_PURPOSE_PHONE;
|
|
} else if (inputType.EqualsLiteral("number")) {
|
|
purpose = GTK_INPUT_PURPOSE_NUMBER;
|
|
}
|
|
|
|
g_object_set(currentContext, "input-purpose", purpose, nullptr);
|
|
}
|
|
}
|
|
#endif // #if (MOZ_WIDGET_GTK == 3)
|
|
|
|
// Even when aState is not enabled state, we need to set IME focus.
|
|
// Because some IMs are updating the status bar of them at this time.
|
|
// Be aware, don't use aWindow here because this method shouldn't move
|
|
// focus actually.
|
|
Focus();
|
|
|
|
// XXX Should we call Blur() when it's not editable? E.g., it might be
|
|
// better to close VKB automatically.
|
|
}
|
|
}
|
|
|
|
InputContext
|
|
IMContextWrapper::GetInputContext()
|
|
{
|
|
mInputContext.mIMEState.mOpen = IMEState::OPEN_STATE_NOT_SUPPORTED;
|
|
return mInputContext;
|
|
}
|
|
|
|
GtkIMContext*
|
|
IMContextWrapper::GetCurrentContext() const
|
|
{
|
|
if (IsEnabled()) {
|
|
return mContext;
|
|
}
|
|
if (mInputContext.mIMEState.mEnabled == IMEState::PASSWORD) {
|
|
return mSimpleContext;
|
|
}
|
|
return mDummyContext;
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::IsValidContext(GtkIMContext* aContext) const
|
|
{
|
|
if (!aContext) {
|
|
return false;
|
|
}
|
|
return aContext == mContext ||
|
|
aContext == mSimpleContext ||
|
|
aContext == mDummyContext;
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::IsEnabled() const
|
|
{
|
|
return mInputContext.mIMEState.mEnabled == IMEState::ENABLED ||
|
|
mInputContext.mIMEState.mEnabled == IMEState::PLUGIN ||
|
|
(!sUseSimpleContext &&
|
|
mInputContext.mIMEState.mEnabled == IMEState::PASSWORD);
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::Focus()
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p Focus(), sLastFocusedContext=%p",
|
|
this, sLastFocusedContext));
|
|
|
|
if (mIsIMFocused) {
|
|
NS_ASSERTION(sLastFocusedContext == this,
|
|
"We're not active, but the IM was focused?");
|
|
return;
|
|
}
|
|
|
|
GtkIMContext* currentContext = GetCurrentContext();
|
|
if (!currentContext) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p Focus(), FAILED, there are no context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
if (sLastFocusedContext && sLastFocusedContext != this) {
|
|
sLastFocusedContext->Blur();
|
|
}
|
|
|
|
sLastFocusedContext = this;
|
|
|
|
gtk_im_context_focus_in(currentContext);
|
|
mIsIMFocused = true;
|
|
mSetCursorPositionOnKeyEvent = true;
|
|
|
|
if (!IsEnabled()) {
|
|
// We should release IME focus for uim and scim.
|
|
// These IMs are using snooper that is released at losing focus.
|
|
Blur();
|
|
}
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::Blur()
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p Blur(), mIsIMFocused=%s",
|
|
this, ToChar(mIsIMFocused)));
|
|
|
|
if (!mIsIMFocused) {
|
|
return;
|
|
}
|
|
|
|
GtkIMContext* currentContext = GetCurrentContext();
|
|
if (!currentContext) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p Blur(), FAILED, there are no context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
gtk_im_context_focus_out(currentContext);
|
|
mIsIMFocused = false;
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnSelectionChange(nsWindow* aCaller,
|
|
const IMENotification& aIMENotification)
|
|
{
|
|
mSelection.Assign(aIMENotification);
|
|
|
|
if (MOZ_UNLIKELY(IsDestroyed())) {
|
|
return;
|
|
}
|
|
|
|
const IMENotification::SelectionChangeDataBase& selectionChangeData =
|
|
aIMENotification.mSelectionChangeData;
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnSelectionChange(aCaller=0x%p, aIMENotification={ "
|
|
"mSelectionChangeData={ mOffset=%u, Length()=%u, mReversed=%s, "
|
|
"mWritingMode=%s, mCausedByComposition=%s, "
|
|
"mCausedBySelectionEvent=%s, mOccurredDuringComposition=%s "
|
|
"} }), mCompositionState=%s, mIsDeletingSurrounding=%s",
|
|
this, aCaller, selectionChangeData.mOffset,
|
|
selectionChangeData.Length(),
|
|
ToChar(selectionChangeData.mReversed),
|
|
GetWritingModeName(selectionChangeData.GetWritingMode()).get(),
|
|
ToChar(selectionChangeData.mCausedByComposition),
|
|
ToChar(selectionChangeData.mCausedBySelectionEvent),
|
|
ToChar(selectionChangeData.mOccurredDuringComposition),
|
|
GetCompositionStateName(), ToChar(mIsDeletingSurrounding)));
|
|
|
|
if (aCaller != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnSelectionChange(), FAILED, "
|
|
"the caller isn't focused window, mLastFocusedWindow=%p",
|
|
this, mLastFocusedWindow));
|
|
return;
|
|
}
|
|
|
|
if (!IsComposing()) {
|
|
// Now we have no composition (mostly situation on calling this method)
|
|
// If we have it, it will set by NOTIFY_IME_OF_COMPOSITION_UPDATE.
|
|
mSetCursorPositionOnKeyEvent = true;
|
|
}
|
|
|
|
// The focused editor might have placeholder text with normal text node.
|
|
// In such case, the text node must be removed from a compositionstart
|
|
// event handler. So, we're dispatching eCompositionStart,
|
|
// we should ignore selection change notification.
|
|
if (mCompositionState == eCompositionState_CompositionStartDispatched) {
|
|
if (NS_WARN_IF(!mSelection.IsValid())) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnSelectionChange(), FAILED, "
|
|
"new offset is too large, cannot keep composing",
|
|
this));
|
|
} else {
|
|
// Modify the selection start offset with new offset.
|
|
mCompositionStart = mSelection.mOffset;
|
|
// XXX We should modify mSelectedString? But how?
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p OnSelectionChange(), ignored, mCompositionStart "
|
|
"is updated to %u, the selection change doesn't cause "
|
|
"resetting IM context",
|
|
this, mCompositionStart));
|
|
// And don't reset the IM context.
|
|
return;
|
|
}
|
|
// Otherwise, reset the IM context due to impossible to keep composing.
|
|
}
|
|
|
|
// If the selection change is caused by deleting surrounding text,
|
|
// we shouldn't need to notify IME of selection change.
|
|
if (mIsDeletingSurrounding) {
|
|
return;
|
|
}
|
|
|
|
bool occurredBeforeComposition =
|
|
IsComposing() && !selectionChangeData.mOccurredDuringComposition;
|
|
if (occurredBeforeComposition) {
|
|
mPendingResettingIMContext = true;
|
|
}
|
|
|
|
// When the selection change is caused by dispatching composition event,
|
|
// selection set event and/or occurred before starting current composition,
|
|
// we shouldn't notify IME of that and commit existing composition.
|
|
if (!selectionChangeData.mCausedByComposition &&
|
|
!selectionChangeData.mCausedBySelectionEvent &&
|
|
!occurredBeforeComposition) {
|
|
ResetIME();
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
void
|
|
IMContextWrapper::OnStartCompositionCallback(GtkIMContext* aContext,
|
|
IMContextWrapper* aModule)
|
|
{
|
|
aModule->OnStartCompositionNative(aContext);
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnStartCompositionNative(GtkIMContext* aContext)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnStartCompositionNative(aContext=%p), "
|
|
"current context=%p",
|
|
this, aContext, GetCurrentContext()));
|
|
|
|
// See bug 472635, we should do nothing if IM context doesn't match.
|
|
if (GetCurrentContext() != aContext) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnStartCompositionNative(), FAILED, "
|
|
"given context doesn't match",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
mComposingContext = static_cast<GtkIMContext*>(g_object_ref(aContext));
|
|
|
|
if (!DispatchCompositionStart(aContext)) {
|
|
return;
|
|
}
|
|
mCompositionTargetRange.mOffset = mCompositionStart;
|
|
mCompositionTargetRange.mLength = 0;
|
|
}
|
|
|
|
/* static */
|
|
void
|
|
IMContextWrapper::OnEndCompositionCallback(GtkIMContext* aContext,
|
|
IMContextWrapper* aModule)
|
|
{
|
|
aModule->OnEndCompositionNative(aContext);
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnEndCompositionNative(GtkIMContext* aContext)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnEndCompositionNative(aContext=%p)",
|
|
this, aContext));
|
|
|
|
// See bug 472635, we should do nothing if IM context doesn't match.
|
|
// Note that if this is called after focus move, the context may different
|
|
// from any our owning context.
|
|
if (!IsValidContext(aContext)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnEndCompositionNative(), FAILED, "
|
|
"given context doesn't match with any context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
g_object_unref(mComposingContext);
|
|
mComposingContext = nullptr;
|
|
|
|
// If we already handled the commit event, we should do nothing here.
|
|
if (IsComposing()) {
|
|
if (!DispatchCompositionCommitEvent(aContext)) {
|
|
// If the widget is destroyed, we should do nothing anymore.
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (mPendingResettingIMContext) {
|
|
ResetIME();
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
void
|
|
IMContextWrapper::OnChangeCompositionCallback(GtkIMContext* aContext,
|
|
IMContextWrapper* aModule)
|
|
{
|
|
aModule->OnChangeCompositionNative(aContext);
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnChangeCompositionNative(GtkIMContext* aContext)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnChangeCompositionNative(aContext=%p)",
|
|
this, aContext));
|
|
|
|
// See bug 472635, we should do nothing if IM context doesn't match.
|
|
// Note that if this is called after focus move, the context may different
|
|
// from any our owning context.
|
|
if (!IsValidContext(aContext)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnChangeCompositionNative(), FAILED, "
|
|
"given context doesn't match with any context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
nsAutoString compositionString;
|
|
GetCompositionString(aContext, compositionString);
|
|
if (!IsComposing() && compositionString.IsEmpty()) {
|
|
mDispatchedCompositionString.Truncate();
|
|
return; // Don't start the composition with empty string.
|
|
}
|
|
|
|
// Be aware, widget can be gone
|
|
DispatchCompositionChangeEvent(aContext, compositionString);
|
|
}
|
|
|
|
/* static */
|
|
gboolean
|
|
IMContextWrapper::OnRetrieveSurroundingCallback(GtkIMContext* aContext,
|
|
IMContextWrapper* aModule)
|
|
{
|
|
return aModule->OnRetrieveSurroundingNative(aContext);
|
|
}
|
|
|
|
gboolean
|
|
IMContextWrapper::OnRetrieveSurroundingNative(GtkIMContext* aContext)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnRetrieveSurroundingNative(aContext=%p), "
|
|
"current context=%p",
|
|
this, aContext, GetCurrentContext()));
|
|
|
|
// See bug 472635, we should do nothing if IM context doesn't match.
|
|
if (GetCurrentContext() != aContext) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnRetrieveSurroundingNative(), FAILED, "
|
|
"given context doesn't match",
|
|
this));
|
|
return FALSE;
|
|
}
|
|
|
|
nsAutoString uniStr;
|
|
uint32_t cursorPos;
|
|
if (NS_FAILED(GetCurrentParagraph(uniStr, cursorPos))) {
|
|
return FALSE;
|
|
}
|
|
|
|
NS_ConvertUTF16toUTF8 utf8Str(nsDependentSubstring(uniStr, 0, cursorPos));
|
|
uint32_t cursorPosInUTF8 = utf8Str.Length();
|
|
AppendUTF16toUTF8(nsDependentSubstring(uniStr, cursorPos), utf8Str);
|
|
gtk_im_context_set_surrounding(aContext, utf8Str.get(), utf8Str.Length(),
|
|
cursorPosInUTF8);
|
|
return TRUE;
|
|
}
|
|
|
|
/* static */
|
|
gboolean
|
|
IMContextWrapper::OnDeleteSurroundingCallback(GtkIMContext* aContext,
|
|
gint aOffset,
|
|
gint aNChars,
|
|
IMContextWrapper* aModule)
|
|
{
|
|
return aModule->OnDeleteSurroundingNative(aContext, aOffset, aNChars);
|
|
}
|
|
|
|
gboolean
|
|
IMContextWrapper::OnDeleteSurroundingNative(GtkIMContext* aContext,
|
|
gint aOffset,
|
|
gint aNChars)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnDeleteSurroundingNative(aContext=%p, aOffset=%ld, "
|
|
"aNChar=%ld), current context=%p",
|
|
this, aContext, GetCurrentContext()));
|
|
|
|
// See bug 472635, we should do nothing if IM context doesn't match.
|
|
if (GetCurrentContext() != aContext) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnDeleteSurroundingNative(), FAILED, "
|
|
"given context doesn't match",
|
|
this));
|
|
return FALSE;
|
|
}
|
|
|
|
AutoRestore<bool> saveDeletingSurrounding(mIsDeletingSurrounding);
|
|
mIsDeletingSurrounding = true;
|
|
if (NS_SUCCEEDED(DeleteText(aContext, aOffset, (uint32_t)aNChars))) {
|
|
return TRUE;
|
|
}
|
|
|
|
// failed
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnDeleteSurroundingNative(), FAILED, "
|
|
"cannot delete text",
|
|
this));
|
|
return FALSE;
|
|
}
|
|
|
|
/* static */
|
|
void
|
|
IMContextWrapper::OnCommitCompositionCallback(GtkIMContext* aContext,
|
|
const gchar* aString,
|
|
IMContextWrapper* aModule)
|
|
{
|
|
aModule->OnCommitCompositionNative(aContext, aString);
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::OnCommitCompositionNative(GtkIMContext* aContext,
|
|
const gchar* aUTF8Char)
|
|
{
|
|
const gchar emptyStr = 0;
|
|
const gchar *commitString = aUTF8Char ? aUTF8Char : &emptyStr;
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnCommitCompositionNative(aContext=%p), "
|
|
"current context=%p, active context=%p, commitString=\"%s\", "
|
|
"mProcessingKeyEvent=%p, IsComposingOn(aContext)=%s",
|
|
this, aContext, GetCurrentContext(), GetActiveContext(), commitString,
|
|
mProcessingKeyEvent, ToChar(IsComposingOn(aContext))));
|
|
|
|
// See bug 472635, we should do nothing if IM context doesn't match.
|
|
if (!IsValidContext(aContext)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p OnCommitCompositionNative(), FAILED, "
|
|
"given context doesn't match",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
// If we are not in composition and committing with empty string,
|
|
// we need to do nothing because if we continued to handle this
|
|
// signal, we would dispatch compositionstart, text, compositionend
|
|
// events with empty string. Of course, they are unnecessary events
|
|
// for Web applications and our editor.
|
|
if (!IsComposingOn(aContext) && !commitString[0]) {
|
|
return;
|
|
}
|
|
|
|
// If IME doesn't change their keyevent that generated this commit,
|
|
// don't send it through XIM - just send it as a normal key press
|
|
// event.
|
|
// NOTE: While a key event is being handled, this might be caused on
|
|
// current context. Otherwise, this may be caused on active context.
|
|
if (!IsComposingOn(aContext) && mProcessingKeyEvent &&
|
|
aContext == GetCurrentContext()) {
|
|
char keyval_utf8[8]; /* should have at least 6 bytes of space */
|
|
gint keyval_utf8_len;
|
|
guint32 keyval_unicode;
|
|
|
|
keyval_unicode = gdk_keyval_to_unicode(mProcessingKeyEvent->keyval);
|
|
keyval_utf8_len = g_unichar_to_utf8(keyval_unicode, keyval_utf8);
|
|
keyval_utf8[keyval_utf8_len] = '\0';
|
|
|
|
if (!strcmp(commitString, keyval_utf8)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p OnCommitCompositionNative(), "
|
|
"we'll send normal key event",
|
|
this));
|
|
mFilterKeyEvent = false;
|
|
return;
|
|
}
|
|
}
|
|
|
|
NS_ConvertUTF8toUTF16 str(commitString);
|
|
// Be aware, widget can be gone
|
|
DispatchCompositionCommitEvent(aContext, &str);
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::GetCompositionString(GtkIMContext* aContext,
|
|
nsAString& aCompositionString)
|
|
{
|
|
gchar *preedit_string;
|
|
gint cursor_pos;
|
|
PangoAttrList *feedback_list;
|
|
gtk_im_context_get_preedit_string(aContext, &preedit_string,
|
|
&feedback_list, &cursor_pos);
|
|
if (preedit_string && *preedit_string) {
|
|
CopyUTF8toUTF16(preedit_string, aCompositionString);
|
|
} else {
|
|
aCompositionString.Truncate();
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p GetCompositionString(aContext=%p), "
|
|
"aCompositionString=\"%s\"",
|
|
this, aContext, preedit_string));
|
|
|
|
pango_attr_list_unref(feedback_list);
|
|
g_free(preedit_string);
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::DispatchCompositionStart(GtkIMContext* aContext)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p DispatchCompositionStart(aContext=%p)",
|
|
this, aContext));
|
|
|
|
if (IsComposing()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, "
|
|
"we're already in composition",
|
|
this));
|
|
return true;
|
|
}
|
|
|
|
if (!mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, "
|
|
"there are no focused window in this module",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
if (NS_WARN_IF(!EnsureToCacheSelection())) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, "
|
|
"cannot query the selection offset",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
// XXX The composition start point might be changed by composition events
|
|
// even though we strongly hope it doesn't happen.
|
|
// Every composition event should have the start offset for the result
|
|
// because it may high cost if we query the offset every time.
|
|
mCompositionStart = mSelection.mOffset;
|
|
mDispatchedCompositionString.Truncate();
|
|
|
|
if (mProcessingKeyEvent && !mKeyDownEventWasSent &&
|
|
mProcessingKeyEvent->type == GDK_KEY_PRESS) {
|
|
// If this composition is started by a native keydown event, we need to
|
|
// dispatch our keydown event here (before composition start).
|
|
nsCOMPtr<nsIWidget> kungFuDeathGrip = mLastFocusedWindow;
|
|
bool isCancelled;
|
|
mLastFocusedWindow->DispatchKeyDownEvent(mProcessingKeyEvent,
|
|
&isCancelled);
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, keydown event "
|
|
"is dispatched",
|
|
this));
|
|
if (static_cast<nsWindow*>(kungFuDeathGrip.get())->IsDestroyed() ||
|
|
kungFuDeathGrip != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, the focused "
|
|
"widget was destroyed/changed by keydown event",
|
|
this));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, mCompositionStart=%u",
|
|
this, mCompositionStart));
|
|
mCompositionState = eCompositionState_CompositionStartDispatched;
|
|
WidgetCompositionEvent compEvent(true, eCompositionStart,
|
|
mLastFocusedWindow);
|
|
InitEvent(compEvent);
|
|
nsCOMPtr<nsIWidget> kungFuDeathGrip = mLastFocusedWindow;
|
|
nsEventStatus status;
|
|
mLastFocusedWindow->DispatchEvent(&compEvent, status);
|
|
if (static_cast<nsWindow*>(kungFuDeathGrip.get())->IsDestroyed() ||
|
|
kungFuDeathGrip != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionStart(), FAILED, the focused "
|
|
"widget was destroyed/changed by compositionstart event",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::DispatchCompositionChangeEvent(
|
|
GtkIMContext* aContext,
|
|
const nsAString& aCompositionString)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p DispatchCompositionChangeEvent(aContext=%p)",
|
|
this, aContext));
|
|
|
|
if (!mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionChangeEvent(), FAILED, "
|
|
"there are no focused window in this module",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
// This keeps mLastFocusedWindow alive during DispatchCompositionStart() as
|
|
// well as for the lifetime of the call. Make sure not to move it after the
|
|
// !IsComposing block.
|
|
RefPtr<nsWindow> lastFocusedWindow = mLastFocusedWindow;
|
|
|
|
if (!IsComposing()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p DispatchCompositionChangeEvent(), the composition "
|
|
"wasn't started, force starting...",
|
|
this));
|
|
if (!DispatchCompositionStart(aContext)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
nsEventStatus status;
|
|
|
|
// Store the selected string which will be removed by following
|
|
// compositionchange event.
|
|
if (mCompositionState == eCompositionState_CompositionStartDispatched) {
|
|
if (NS_WARN_IF(!EnsureToCacheSelection(&mSelectedString))) {
|
|
// XXX How should we behave in this case??
|
|
} else {
|
|
// XXX We should assume, for now, any web applications don't change
|
|
// selection at handling this compositionchange event.
|
|
mCompositionStart = mSelection.mOffset;
|
|
}
|
|
}
|
|
|
|
WidgetCompositionEvent compositionChangeEvent(true, eCompositionChange,
|
|
lastFocusedWindow);
|
|
InitEvent(compositionChangeEvent);
|
|
|
|
uint32_t targetOffset = mCompositionStart;
|
|
|
|
compositionChangeEvent.mData =
|
|
mDispatchedCompositionString = aCompositionString;
|
|
|
|
compositionChangeEvent.mRanges =
|
|
CreateTextRangeArray(aContext, mDispatchedCompositionString);
|
|
targetOffset += compositionChangeEvent.TargetClauseOffset();
|
|
|
|
mCompositionState = eCompositionState_CompositionChangeEventDispatched;
|
|
|
|
// We cannot call SetCursorPosition for e10s-aware.
|
|
// DispatchEvent is async on e10s, so composition rect isn't updated now
|
|
// on tab parent.
|
|
mLayoutChanged = false;
|
|
mCompositionTargetRange.mOffset = targetOffset;
|
|
mCompositionTargetRange.mLength =
|
|
compositionChangeEvent.TargetClauseLength();
|
|
|
|
lastFocusedWindow->DispatchEvent(&compositionChangeEvent, status);
|
|
if (lastFocusedWindow->IsDestroyed() ||
|
|
lastFocusedWindow != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionChangeEvent(), FAILED, the "
|
|
"focused widget was destroyed/changed by "
|
|
"compositionchange event",
|
|
this));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::DispatchCompositionCommitEvent(
|
|
GtkIMContext* aContext,
|
|
const nsAString* aCommitString)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p DispatchCompositionCommitEvent(aContext=%p, "
|
|
"aCommitString=%p, (\"%s\"))",
|
|
this, aContext, aCommitString,
|
|
aCommitString ? NS_ConvertUTF16toUTF8(*aCommitString).get() : ""));
|
|
|
|
if (!mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionCommitEvent(), FAILED, "
|
|
"there are no focused window in this module",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
if (!IsComposing()) {
|
|
if (!aCommitString || aCommitString->IsEmpty()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionCommitEvent(), FAILED, "
|
|
"there is no composition and empty commit string",
|
|
this));
|
|
return true;
|
|
}
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p DispatchCompositionCommitEvent(), "
|
|
"the composition wasn't started, force starting...",
|
|
this));
|
|
nsCOMPtr<nsIWidget> kungFuDeathGrip(mLastFocusedWindow);
|
|
mozilla::Unused << kungFuDeathGrip;
|
|
if (!DispatchCompositionStart(aContext)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
RefPtr<nsWindow> lastFocusedWindow(mLastFocusedWindow);
|
|
|
|
EventMessage message = aCommitString ? eCompositionCommit :
|
|
eCompositionCommitAsIs;
|
|
mCompositionState = eCompositionState_NotComposing;
|
|
mCompositionStart = UINT32_MAX;
|
|
mCompositionTargetRange.Clear();
|
|
mDispatchedCompositionString.Truncate();
|
|
|
|
WidgetCompositionEvent compositionCommitEvent(true, message,
|
|
mLastFocusedWindow);
|
|
InitEvent(compositionCommitEvent);
|
|
if (message == eCompositionCommit) {
|
|
compositionCommitEvent.mData = *aCommitString;
|
|
}
|
|
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
mLastFocusedWindow->DispatchEvent(&compositionCommitEvent, status);
|
|
|
|
if (lastFocusedWindow->IsDestroyed() ||
|
|
lastFocusedWindow != mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DispatchCompositionCommitEvent(), FAILED, "
|
|
"the focused widget was destroyed/changed by "
|
|
"compositioncommit event",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<TextRangeArray>
|
|
IMContextWrapper::CreateTextRangeArray(GtkIMContext* aContext,
|
|
const nsAString& aCompositionString)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p CreateTextRangeArray(aContext=%p, "
|
|
"aCompositionString=\"%s\" (Length()=%u))",
|
|
this, aContext, NS_ConvertUTF16toUTF8(aCompositionString).get(),
|
|
aCompositionString.Length()));
|
|
|
|
RefPtr<TextRangeArray> textRangeArray = new TextRangeArray();
|
|
|
|
gchar *preedit_string;
|
|
gint cursor_pos_in_chars;
|
|
PangoAttrList *feedback_list;
|
|
gtk_im_context_get_preedit_string(aContext, &preedit_string,
|
|
&feedback_list, &cursor_pos_in_chars);
|
|
if (!preedit_string || !*preedit_string) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p CreateTextRangeArray(), FAILED, due to "
|
|
"preedit_string is null",
|
|
this));
|
|
pango_attr_list_unref(feedback_list);
|
|
g_free(preedit_string);
|
|
return textRangeArray.forget();
|
|
}
|
|
|
|
// Convert caret offset from offset in characters to offset in UTF-16
|
|
// string. If we couldn't proper offset in UTF-16 string, we should
|
|
// assume that the caret is at the end of the composition string.
|
|
uint32_t caretOffsetInUTF16 = aCompositionString.Length();
|
|
if (NS_WARN_IF(cursor_pos_in_chars < 0)) {
|
|
// Note that this case is undocumented. We should assume that the
|
|
// caret is at the end of the composition string.
|
|
} else if (cursor_pos_in_chars == 0) {
|
|
caretOffsetInUTF16 = 0;
|
|
} else {
|
|
gchar* charAfterCaret =
|
|
g_utf8_offset_to_pointer(preedit_string, cursor_pos_in_chars);
|
|
if (NS_WARN_IF(!charAfterCaret)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Warning,
|
|
("GTKIM: %p CreateTextRangeArray(), failed to get UTF-8 "
|
|
"string before the caret (cursor_pos_in_chars=%d)",
|
|
this, cursor_pos_in_chars));
|
|
} else {
|
|
glong caretOffset = 0;
|
|
gunichar2* utf16StrBeforeCaret =
|
|
g_utf8_to_utf16(preedit_string, charAfterCaret - preedit_string,
|
|
nullptr, &caretOffset, nullptr);
|
|
if (NS_WARN_IF(!utf16StrBeforeCaret) ||
|
|
NS_WARN_IF(caretOffset < 0)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Warning,
|
|
("GTKIM: %p CreateTextRangeArray(), WARNING, failed to "
|
|
"convert to UTF-16 string before the caret "
|
|
"(cursor_pos_in_chars=%d, caretOffset=%d)",
|
|
this, cursor_pos_in_chars, caretOffset));
|
|
} else {
|
|
caretOffsetInUTF16 = static_cast<uint32_t>(caretOffset);
|
|
uint32_t compositionStringLength = aCompositionString.Length();
|
|
if (NS_WARN_IF(caretOffsetInUTF16 > compositionStringLength)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Warning,
|
|
("GTKIM: %p CreateTextRangeArray(), WARNING, "
|
|
"caretOffsetInUTF16=%u is larger than "
|
|
"compositionStringLength=%u",
|
|
this, caretOffsetInUTF16, compositionStringLength));
|
|
caretOffsetInUTF16 = compositionStringLength;
|
|
}
|
|
}
|
|
if (utf16StrBeforeCaret) {
|
|
g_free(utf16StrBeforeCaret);
|
|
}
|
|
}
|
|
}
|
|
|
|
PangoAttrIterator* iter;
|
|
iter = pango_attr_list_get_iterator(feedback_list);
|
|
if (!iter) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p CreateTextRangeArray(), FAILED, iterator couldn't "
|
|
"be allocated",
|
|
this));
|
|
pango_attr_list_unref(feedback_list);
|
|
g_free(preedit_string);
|
|
return textRangeArray.forget();
|
|
}
|
|
|
|
do {
|
|
TextRange range;
|
|
if (!SetTextRange(iter, preedit_string, caretOffsetInUTF16, range)) {
|
|
continue;
|
|
}
|
|
textRangeArray->AppendElement(range);
|
|
} while (pango_attr_iterator_next(iter));
|
|
|
|
TextRange range;
|
|
range.mStartOffset = range.mEndOffset = caretOffsetInUTF16;
|
|
range.mRangeType = NS_TEXTRANGE_CARETPOSITION;
|
|
textRangeArray->AppendElement(range);
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p CreateTextRangeArray(), mStartOffset=%u, "
|
|
"mEndOffset=%u, mRangeType=%s",
|
|
this, range.mStartOffset, range.mEndOffset,
|
|
GetRangeTypeName(range.mRangeType)));
|
|
|
|
pango_attr_iterator_destroy(iter);
|
|
pango_attr_list_unref(feedback_list);
|
|
g_free(preedit_string);
|
|
|
|
return textRangeArray.forget();
|
|
}
|
|
|
|
/* static */
|
|
nscolor
|
|
IMContextWrapper::ToNscolor(PangoAttrColor* aPangoAttrColor)
|
|
{
|
|
PangoColor& pangoColor = aPangoAttrColor->color;
|
|
uint8_t r = pangoColor.red / 0x100;
|
|
uint8_t g = pangoColor.green / 0x100;
|
|
uint8_t b = pangoColor.blue / 0x100;
|
|
return NS_RGB(r, g, b);
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::SetTextRange(PangoAttrIterator* aPangoAttrIter,
|
|
const gchar* aUTF8CompositionString,
|
|
uint32_t aUTF16CaretOffset,
|
|
TextRange& aTextRange) const
|
|
{
|
|
// Set the range offsets in UTF-16 string.
|
|
gint utf8ClauseStart, utf8ClauseEnd;
|
|
pango_attr_iterator_range(aPangoAttrIter, &utf8ClauseStart, &utf8ClauseEnd);
|
|
if (utf8ClauseStart == utf8ClauseEnd) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetTextRange(), FAILED, due to collapsed range",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
if (!utf8ClauseStart) {
|
|
aTextRange.mStartOffset = 0;
|
|
} else {
|
|
glong utf16PreviousClausesLength;
|
|
gunichar2* utf16PreviousClausesString =
|
|
g_utf8_to_utf16(aUTF8CompositionString, utf8ClauseStart, nullptr,
|
|
&utf16PreviousClausesLength, nullptr);
|
|
|
|
if (NS_WARN_IF(!utf16PreviousClausesString)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetTextRange(), FAILED, due to g_utf8_to_utf16() "
|
|
"failure (retrieving previous string of current clause)",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
aTextRange.mStartOffset = utf16PreviousClausesLength;
|
|
g_free(utf16PreviousClausesString);
|
|
}
|
|
|
|
glong utf16CurrentClauseLength;
|
|
gunichar2* utf16CurrentClauseString =
|
|
g_utf8_to_utf16(aUTF8CompositionString + utf8ClauseStart,
|
|
utf8ClauseEnd - utf8ClauseStart,
|
|
nullptr, &utf16CurrentClauseLength, nullptr);
|
|
|
|
if (NS_WARN_IF(!utf16CurrentClauseString)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetTextRange(), FAILED, due to g_utf8_to_utf16() "
|
|
"failure (retrieving current clause)",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
aTextRange.mEndOffset = aTextRange.mStartOffset + utf16CurrentClauseLength;
|
|
g_free(utf16CurrentClauseString);
|
|
utf16CurrentClauseString = nullptr;
|
|
|
|
// Set styles
|
|
TextRangeStyle& style = aTextRange.mRangeStyle;
|
|
|
|
// Underline
|
|
PangoAttrInt* attrUnderline =
|
|
reinterpret_cast<PangoAttrInt*>(
|
|
pango_attr_iterator_get(aPangoAttrIter, PANGO_ATTR_UNDERLINE));
|
|
if (attrUnderline) {
|
|
switch (attrUnderline->value) {
|
|
case PANGO_UNDERLINE_NONE:
|
|
style.mLineStyle = TextRangeStyle::LINESTYLE_NONE;
|
|
break;
|
|
case PANGO_UNDERLINE_DOUBLE:
|
|
style.mLineStyle = TextRangeStyle::LINESTYLE_DOUBLE;
|
|
break;
|
|
case PANGO_UNDERLINE_ERROR:
|
|
style.mLineStyle = TextRangeStyle::LINESTYLE_WAVY;
|
|
break;
|
|
case PANGO_UNDERLINE_SINGLE:
|
|
case PANGO_UNDERLINE_LOW:
|
|
style.mLineStyle = TextRangeStyle::LINESTYLE_SOLID;
|
|
break;
|
|
default:
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Warning,
|
|
("GTKIM: %p SetTextRange(), retrieved unknown underline "
|
|
"style: %d",
|
|
this, attrUnderline->value));
|
|
style.mLineStyle = TextRangeStyle::LINESTYLE_SOLID;
|
|
break;
|
|
}
|
|
style.mDefinedStyles |= TextRangeStyle::DEFINED_LINESTYLE;
|
|
|
|
// Underline color
|
|
PangoAttrColor* attrUnderlineColor =
|
|
reinterpret_cast<PangoAttrColor*>(
|
|
pango_attr_iterator_get(aPangoAttrIter,
|
|
PANGO_ATTR_UNDERLINE_COLOR));
|
|
if (attrUnderlineColor) {
|
|
style.mUnderlineColor = ToNscolor(attrUnderlineColor);
|
|
style.mDefinedStyles |= TextRangeStyle::DEFINED_UNDERLINE_COLOR;
|
|
}
|
|
} else {
|
|
style.mLineStyle = TextRangeStyle::LINESTYLE_NONE;
|
|
style.mDefinedStyles |= TextRangeStyle::DEFINED_LINESTYLE;
|
|
}
|
|
|
|
// Don't set colors if they are not specified. They should be computed by
|
|
// textframe if only one of the colors are specified.
|
|
|
|
// Foreground color (text color)
|
|
PangoAttrColor* attrForeground =
|
|
reinterpret_cast<PangoAttrColor*>(
|
|
pango_attr_iterator_get(aPangoAttrIter, PANGO_ATTR_FOREGROUND));
|
|
if (attrForeground) {
|
|
style.mForegroundColor = ToNscolor(attrForeground);
|
|
style.mDefinedStyles |= TextRangeStyle::DEFINED_FOREGROUND_COLOR;
|
|
}
|
|
|
|
// Background color
|
|
PangoAttrColor* attrBackground =
|
|
reinterpret_cast<PangoAttrColor*>(
|
|
pango_attr_iterator_get(aPangoAttrIter, PANGO_ATTR_BACKGROUND));
|
|
if (attrBackground) {
|
|
style.mBackgroundColor = ToNscolor(attrBackground);
|
|
style.mDefinedStyles |= TextRangeStyle::DEFINED_BACKGROUND_COLOR;
|
|
}
|
|
|
|
/**
|
|
* We need to judge the meaning of the clause for a11y. Before we support
|
|
* IME specific composition string style, we used following rules:
|
|
*
|
|
* 1: If attrUnderline and attrForground are specified, we assumed the
|
|
* clause is NS_TEXTRANGE_SELECTEDCONVERTEDTEXT.
|
|
* 2: If only attrUnderline is specified, we assumed the clause is
|
|
* NS_TEXTRANGE_CONVERTEDTEXT.
|
|
* 3: If only attrForground is specified, we assumed the clause is
|
|
* NS_TEXTRANGE_SELECTEDRAWTEXT.
|
|
* 4: If neither attrUnderline nor attrForeground is specified, we assumed
|
|
* the clause is NS_TEXTRANGE_RAWINPUT.
|
|
*
|
|
* However, this rules are odd since there can be two or more selected
|
|
* clauses. Additionally, our old rules caused that IME developers/users
|
|
* cannot specify composition string style as they want.
|
|
*
|
|
* So, we shouldn't guess the meaning from its visual style.
|
|
*/
|
|
|
|
if (!attrUnderline && !attrForeground && !attrBackground) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Warning,
|
|
("GTKIM: %p SetTextRange(), FAILED, due to no attr, "
|
|
"aTextRange= { mStartOffset=%u, mEndOffset=%u }",
|
|
this, aTextRange.mStartOffset, aTextRange.mEndOffset));
|
|
return false;
|
|
}
|
|
|
|
// If the range covers whole of composition string and the caret is at
|
|
// the end of the composition string, the range is probably not converted.
|
|
if (!utf8ClauseStart &&
|
|
utf8ClauseEnd == static_cast<gint>(strlen(aUTF8CompositionString)) &&
|
|
aTextRange.mEndOffset == aUTF16CaretOffset) {
|
|
aTextRange.mRangeType = NS_TEXTRANGE_RAWINPUT;
|
|
}
|
|
// Typically, the caret is set at the start of the selected clause.
|
|
// So, if the caret is in the clause, we can assume that the clause is
|
|
// selected.
|
|
else if (aTextRange.mStartOffset <= aUTF16CaretOffset &&
|
|
aTextRange.mEndOffset > aUTF16CaretOffset) {
|
|
aTextRange.mRangeType = NS_TEXTRANGE_SELECTEDCONVERTEDTEXT;
|
|
}
|
|
// Otherwise, we should assume that the clause is converted but not
|
|
// selected.
|
|
else {
|
|
aTextRange.mRangeType = NS_TEXTRANGE_CONVERTEDTEXT;
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p SetTextRange(), succeeded, aTextRange= { "
|
|
"mStartOffset=%u, mEndOffset=%u, mRangeType=%s, mRangeStyle=%s }",
|
|
this, aTextRange.mStartOffset, aTextRange.mEndOffset,
|
|
GetRangeTypeName(aTextRange.mRangeType),
|
|
GetTextRangeStyleText(aTextRange.mRangeStyle).get()));
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::SetCursorPosition(GtkIMContext* aContext)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p SetCursorPosition(aContext=%p), "
|
|
"mCompositionTargetRange={ mOffset=%u, mLength=%u }"
|
|
"mSelection={ mOffset=%u, mLength=%u, mWritingMode=%s }",
|
|
this, aContext, mCompositionTargetRange.mOffset,
|
|
mCompositionTargetRange.mLength,
|
|
mSelection.mOffset, mSelection.mLength,
|
|
GetWritingModeName(mSelection.mWritingMode).get()));
|
|
|
|
bool useCaret = false;
|
|
if (!mCompositionTargetRange.IsValid()) {
|
|
if (!mSelection.IsValid()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetCursorPosition(), FAILED, "
|
|
"mCompositionTargetRange and mSelection are invalid",
|
|
this));
|
|
return;
|
|
}
|
|
useCaret = true;
|
|
}
|
|
|
|
if (!mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetCursorPosition(), FAILED, due to no focused "
|
|
"window",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
if (MOZ_UNLIKELY(!aContext)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetCursorPosition(), FAILED, due to no context",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
WidgetQueryContentEvent charRect(true,
|
|
useCaret ? eQueryCaretRect :
|
|
eQueryTextRect,
|
|
mLastFocusedWindow);
|
|
if (useCaret) {
|
|
charRect.InitForQueryCaretRect(mSelection.mOffset);
|
|
} else {
|
|
if (mSelection.mWritingMode.IsVertical()) {
|
|
// For preventing the candidate window to overlap the target
|
|
// clause, we should set fake (typically, very tall) caret rect.
|
|
uint32_t length = mCompositionTargetRange.mLength ?
|
|
mCompositionTargetRange.mLength : 1;
|
|
charRect.InitForQueryTextRect(mCompositionTargetRange.mOffset,
|
|
length);
|
|
} else {
|
|
charRect.InitForQueryTextRect(mCompositionTargetRange.mOffset, 1);
|
|
}
|
|
}
|
|
InitEvent(charRect);
|
|
nsEventStatus status;
|
|
mLastFocusedWindow->DispatchEvent(&charRect, status);
|
|
if (!charRect.mSucceeded) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p SetCursorPosition(), FAILED, %s was failed",
|
|
this, useCaret ? "eQueryCaretRect" : "eQueryTextRect"));
|
|
return;
|
|
}
|
|
|
|
nsWindow* rootWindow =
|
|
static_cast<nsWindow*>(mLastFocusedWindow->GetTopLevelWidget());
|
|
|
|
// Get the position of the rootWindow in screen.
|
|
LayoutDeviceIntPoint root = rootWindow->WidgetToScreenOffset();
|
|
|
|
// Get the position of IM context owner window in screen.
|
|
LayoutDeviceIntPoint owner = mOwnerWindow->WidgetToScreenOffset();
|
|
|
|
// Compute the caret position in the IM owner window.
|
|
LayoutDeviceIntRect rect = charRect.mReply.mRect + root - owner;
|
|
rect.width = 0;
|
|
GdkRectangle area = rootWindow->DevicePixelsToGdkRectRoundOut(rect);
|
|
|
|
gtk_im_context_set_cursor_location(aContext, &area);
|
|
}
|
|
|
|
nsresult
|
|
IMContextWrapper::GetCurrentParagraph(nsAString& aText,
|
|
uint32_t& aCursorPos)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p GetCurrentParagraph(), mCompositionState=%s",
|
|
this, GetCompositionStateName()));
|
|
|
|
if (!mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p GetCurrentParagraph(), FAILED, there are no "
|
|
"focused window in this module",
|
|
this));
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
nsEventStatus status;
|
|
|
|
uint32_t selOffset = mCompositionStart;
|
|
uint32_t selLength = mSelectedString.Length();
|
|
|
|
// If focused editor doesn't have composition string, we should use
|
|
// current selection.
|
|
if (!EditorHasCompositionString()) {
|
|
// Query cursor position & selection
|
|
if (NS_WARN_IF(!EnsureToCacheSelection())) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p GetCurrentParagraph(), FAILED, due to no "
|
|
"valid selection information",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
selOffset = mSelection.mOffset;
|
|
selLength = mSelection.mLength;
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p GetCurrentParagraph(), selOffset=%u, selLength=%u",
|
|
this, selOffset, selLength));
|
|
|
|
// XXX nsString::Find and nsString::RFind take int32_t for offset, so,
|
|
// we cannot support this request when the current offset is larger
|
|
// than INT32_MAX.
|
|
if (selOffset > INT32_MAX || selLength > INT32_MAX ||
|
|
selOffset + selLength > INT32_MAX) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p GetCurrentParagraph(), FAILED, The selection is "
|
|
"out of range",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Get all text contents of the focused editor
|
|
WidgetQueryContentEvent queryTextContentEvent(true, eQueryTextContent,
|
|
mLastFocusedWindow);
|
|
queryTextContentEvent.InitForQueryTextContent(0, UINT32_MAX);
|
|
mLastFocusedWindow->DispatchEvent(&queryTextContentEvent, status);
|
|
NS_ENSURE_TRUE(queryTextContentEvent.mSucceeded, NS_ERROR_FAILURE);
|
|
|
|
nsAutoString textContent(queryTextContentEvent.mReply.mString);
|
|
if (selOffset + selLength > textContent.Length()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p GetCurrentParagraph(), FAILED, The selection is "
|
|
"invalid, textContent.Length()=%u",
|
|
this, textContent.Length()));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Remove composing string and restore the selected string because
|
|
// GtkEntry doesn't remove selected string until committing, however,
|
|
// our editor does it. We should emulate the behavior for IME.
|
|
if (EditorHasCompositionString() &&
|
|
mDispatchedCompositionString != mSelectedString) {
|
|
textContent.Replace(mCompositionStart,
|
|
mDispatchedCompositionString.Length(), mSelectedString);
|
|
}
|
|
|
|
// Get only the focused paragraph, by looking for newlines
|
|
int32_t parStart = (selOffset == 0) ? 0 :
|
|
textContent.RFind("\n", false, selOffset - 1, -1) + 1;
|
|
int32_t parEnd = textContent.Find("\n", false, selOffset + selLength, -1);
|
|
if (parEnd < 0) {
|
|
parEnd = textContent.Length();
|
|
}
|
|
aText = nsDependentSubstring(textContent, parStart, parEnd - parStart);
|
|
aCursorPos = selOffset - uint32_t(parStart);
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p GetCurrentParagraph(), succeeded, aText=%s, "
|
|
"aText.Length()=%u, aCursorPos=%u",
|
|
this, NS_ConvertUTF16toUTF8(aText).get(),
|
|
aText.Length(), aCursorPos));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
IMContextWrapper::DeleteText(GtkIMContext* aContext,
|
|
int32_t aOffset,
|
|
uint32_t aNChars)
|
|
{
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Info,
|
|
("GTKIM: %p DeleteText(aContext=%p, aOffset=%d, aNChars=%d), "
|
|
"mCompositionState=%s",
|
|
this, aContext, aOffset, aNChars, GetCompositionStateName()));
|
|
|
|
if (!mLastFocusedWindow) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, there are no focused window "
|
|
"in this module",
|
|
this));
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
if (!aNChars) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, aNChars must not be zero",
|
|
this));
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
RefPtr<nsWindow> lastFocusedWindow(mLastFocusedWindow);
|
|
nsEventStatus status;
|
|
|
|
// First, we should cancel current composition because editor cannot
|
|
// handle changing selection and deleting text.
|
|
uint32_t selOffset;
|
|
bool wasComposing = IsComposing();
|
|
bool editorHadCompositionString = EditorHasCompositionString();
|
|
if (wasComposing) {
|
|
selOffset = mCompositionStart;
|
|
if (!DispatchCompositionCommitEvent(aContext, &mSelectedString)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, quitting from DeletText",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else {
|
|
if (NS_WARN_IF(!EnsureToCacheSelection())) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, due to no valid selection "
|
|
"information",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
selOffset = mSelection.mOffset;
|
|
}
|
|
|
|
// Get all text contents of the focused editor
|
|
WidgetQueryContentEvent queryTextContentEvent(true, eQueryTextContent,
|
|
mLastFocusedWindow);
|
|
queryTextContentEvent.InitForQueryTextContent(0, UINT32_MAX);
|
|
mLastFocusedWindow->DispatchEvent(&queryTextContentEvent, status);
|
|
NS_ENSURE_TRUE(queryTextContentEvent.mSucceeded, NS_ERROR_FAILURE);
|
|
if (queryTextContentEvent.mReply.mString.IsEmpty()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, there is no contents",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_ConvertUTF16toUTF8 utf8Str(
|
|
nsDependentSubstring(queryTextContentEvent.mReply.mString,
|
|
0, selOffset));
|
|
glong offsetInUTF8Characters =
|
|
g_utf8_strlen(utf8Str.get(), utf8Str.Length()) + aOffset;
|
|
if (offsetInUTF8Characters < 0) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, aOffset is too small for "
|
|
"current cursor pos (computed offset: %d)",
|
|
this, offsetInUTF8Characters));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
AppendUTF16toUTF8(
|
|
nsDependentSubstring(queryTextContentEvent.mReply.mString, selOffset),
|
|
utf8Str);
|
|
glong countOfCharactersInUTF8 =
|
|
g_utf8_strlen(utf8Str.get(), utf8Str.Length());
|
|
glong endInUTF8Characters =
|
|
offsetInUTF8Characters + aNChars;
|
|
if (countOfCharactersInUTF8 < endInUTF8Characters) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, aNChars is too large for "
|
|
"current contents (content length: %d, computed end offset: %d)",
|
|
this, countOfCharactersInUTF8, endInUTF8Characters));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
gchar* charAtOffset =
|
|
g_utf8_offset_to_pointer(utf8Str.get(), offsetInUTF8Characters);
|
|
gchar* charAtEnd =
|
|
g_utf8_offset_to_pointer(utf8Str.get(), endInUTF8Characters);
|
|
|
|
// Set selection to delete
|
|
WidgetSelectionEvent selectionEvent(true, eSetSelection,
|
|
mLastFocusedWindow);
|
|
|
|
nsDependentCSubstring utf8StrBeforeOffset(utf8Str, 0,
|
|
charAtOffset - utf8Str.get());
|
|
selectionEvent.mOffset =
|
|
NS_ConvertUTF8toUTF16(utf8StrBeforeOffset).Length();
|
|
|
|
nsDependentCSubstring utf8DeletingStr(utf8Str,
|
|
utf8StrBeforeOffset.Length(),
|
|
charAtEnd - charAtOffset);
|
|
selectionEvent.mLength =
|
|
NS_ConvertUTF8toUTF16(utf8DeletingStr).Length();
|
|
|
|
selectionEvent.mReversed = false;
|
|
selectionEvent.mExpandToClusterBoundary = false;
|
|
lastFocusedWindow->DispatchEvent(&selectionEvent, status);
|
|
|
|
if (!selectionEvent.mSucceeded ||
|
|
lastFocusedWindow != mLastFocusedWindow ||
|
|
lastFocusedWindow->Destroyed()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, setting selection caused "
|
|
"focus change or window destroyed",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Delete the selection
|
|
WidgetContentCommandEvent contentCommandEvent(true, eContentCommandDelete,
|
|
mLastFocusedWindow);
|
|
mLastFocusedWindow->DispatchEvent(&contentCommandEvent, status);
|
|
|
|
if (!contentCommandEvent.mSucceeded ||
|
|
lastFocusedWindow != mLastFocusedWindow ||
|
|
lastFocusedWindow->Destroyed()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, deleting the selection caused "
|
|
"focus change or window destroyed",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!wasComposing) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Restore the composition at new caret position.
|
|
if (!DispatchCompositionStart(aContext)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, resterting composition start",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!editorHadCompositionString) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoString compositionString;
|
|
GetCompositionString(aContext, compositionString);
|
|
if (!DispatchCompositionChangeEvent(aContext, compositionString)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p DeleteText(), FAILED, restoring composition string",
|
|
this));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::InitEvent(WidgetGUIEvent& aEvent)
|
|
{
|
|
aEvent.time = PR_Now() / 1000;
|
|
}
|
|
|
|
bool
|
|
IMContextWrapper::EnsureToCacheSelection(nsAString* aSelectedString)
|
|
{
|
|
if (aSelectedString) {
|
|
aSelectedString->Truncate();
|
|
}
|
|
|
|
if (mSelection.IsValid() &&
|
|
(!mSelection.Collapsed() || !aSelectedString)) {
|
|
return true;
|
|
}
|
|
|
|
if (NS_WARN_IF(!mLastFocusedWindow)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p EnsureToCacheSelection(), FAILED, due to "
|
|
"no focused window",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
nsEventStatus status;
|
|
WidgetQueryContentEvent selection(true, eQuerySelectedText,
|
|
mLastFocusedWindow);
|
|
InitEvent(selection);
|
|
mLastFocusedWindow->DispatchEvent(&selection, status);
|
|
if (NS_WARN_IF(!selection.mSucceeded)) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p EnsureToCacheSelection(), FAILED, due to "
|
|
"failure of query selection event",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
mSelection.Assign(selection);
|
|
if (!mSelection.IsValid()) {
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Error,
|
|
("GTKIM: %p EnsureToCacheSelection(), FAILED, due to "
|
|
"failure of query selection event (invalid result)",
|
|
this));
|
|
return false;
|
|
}
|
|
|
|
if (!mSelection.Collapsed() && aSelectedString) {
|
|
aSelectedString->Assign(selection.mReply.mString);
|
|
}
|
|
|
|
MOZ_LOG(gGtkIMLog, LogLevel::Debug,
|
|
("GTKIM: %p EnsureToCacheSelection(), Succeeded, mSelection="
|
|
"{ mOffset=%u, mLength=%u, mWritingMode=%s }",
|
|
this, mSelection.mOffset, mSelection.mLength,
|
|
GetWritingModeName(mSelection.mWritingMode).get()));
|
|
return true;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* IMContextWrapper::Selection
|
|
******************************************************************************/
|
|
|
|
void
|
|
IMContextWrapper::Selection::Assign(const IMENotification& aIMENotification)
|
|
{
|
|
MOZ_ASSERT(aIMENotification.mMessage == NOTIFY_IME_OF_SELECTION_CHANGE);
|
|
mOffset = aIMENotification.mSelectionChangeData.mOffset;
|
|
mLength = aIMENotification.mSelectionChangeData.Length();
|
|
mWritingMode = aIMENotification.mSelectionChangeData.GetWritingMode();
|
|
}
|
|
|
|
void
|
|
IMContextWrapper::Selection::Assign(const WidgetQueryContentEvent& aEvent)
|
|
{
|
|
MOZ_ASSERT(aEvent.mMessage == eQuerySelectedText);
|
|
MOZ_ASSERT(aEvent.mSucceeded);
|
|
mOffset = aEvent.mReply.mOffset;
|
|
mLength = aEvent.mReply.mString.Length();
|
|
mWritingMode = aEvent.GetWritingMode();
|
|
}
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|