зеркало из https://github.com/mozilla/gecko-dev.git
1252 строки
41 KiB
C++
1252 строки
41 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et 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 "prlog.h"
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#include "mozilla/IMEStateManager.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Services.h"
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#include "mozilla/TextComposition.h"
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#include "mozilla/TextEvents.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "HTMLInputElement.h"
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#include "IMEContentObserver.h"
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#include "nsCOMPtr.h"
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#include "nsContentUtils.h"
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#include "nsIContent.h"
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#include "nsIDocument.h"
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#include "nsIDOMMouseEvent.h"
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#include "nsIForm.h"
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#include "nsIFormControl.h"
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#include "nsINode.h"
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#include "nsIObserverService.h"
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#include "nsIPresShell.h"
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#include "nsISelection.h"
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#include "nsISupports.h"
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#include "nsPresContext.h"
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namespace mozilla {
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using namespace dom;
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using namespace widget;
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#ifdef PR_LOGGING
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/**
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* When a method is called, log its arguments and/or related static variables
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* with PR_LOG_ALWAYS. However, if it puts too many logs like
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* OnDestroyPresContext(), should long only when the method actually does
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* something. In this case, the log should start with "ISM: <method name>".
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*
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* When a method quits due to unexpected situation, log the reason with
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* PR_LOG_ERROR. In this case, the log should start with
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* "ISM: <method name>(), FAILED". The indent makes the log look easier.
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*
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* When a method does something only in some situations and it may be important
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* for debug, log the information with PR_LOG_DEBUG. In this case, the log
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* should start with "ISM: <method name>(),".
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*/
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PRLogModuleInfo* sISMLog = nullptr;
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static const char*
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GetBoolName(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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GetActionCauseName(InputContextAction::Cause aCause)
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{
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switch (aCause) {
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case InputContextAction::CAUSE_UNKNOWN:
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return "CAUSE_UNKNOWN";
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case InputContextAction::CAUSE_UNKNOWN_CHROME:
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return "CAUSE_UNKNOWN_CHROME";
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case InputContextAction::CAUSE_KEY:
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return "CAUSE_KEY";
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case InputContextAction::CAUSE_MOUSE:
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return "CAUSE_MOUSE";
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default:
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return "illegal value";
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}
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}
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static const char*
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GetActionFocusChangeName(InputContextAction::FocusChange aFocusChange)
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{
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switch (aFocusChange) {
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case InputContextAction::FOCUS_NOT_CHANGED:
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return "FOCUS_NOT_CHANGED";
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case InputContextAction::GOT_FOCUS:
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return "GOT_FOCUS";
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case InputContextAction::LOST_FOCUS:
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return "LOST_FOCUS";
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case InputContextAction::MENU_GOT_PSEUDO_FOCUS:
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return "MENU_GOT_PSEUDO_FOCUS";
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case InputContextAction::MENU_LOST_PSEUDO_FOCUS:
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return "MENU_LOST_PSEUDO_FOCUS";
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default:
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return "illegal value";
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}
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}
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static const char*
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GetIMEStateEnabledName(IMEState::Enabled aEnabled)
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{
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switch (aEnabled) {
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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 "PLUGIN";
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default:
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return "illegal value";
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}
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}
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static const char*
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GetIMEStateSetOpenName(IMEState::Open aOpen)
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{
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switch (aOpen) {
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case IMEState::DONT_CHANGE_OPEN_STATE:
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return "DONT_CHANGE_OPEN_STATE";
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case IMEState::OPEN:
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return "OPEN";
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case IMEState::CLOSED:
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return "CLOSED";
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default:
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return "illegal value";
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}
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}
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static const char*
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GetEventClassIDName(EventClassID aEventClassID)
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{
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switch (aEventClassID) {
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case eCompositionEventClass:
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return "eCompositionEventClass";
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case eTextEventClass:
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return "eTextEventClass";
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default:
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return "unacceptable event struct type";
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}
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}
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static const char*
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GetEventMessageName(uint32_t aMessage)
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{
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switch (aMessage) {
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case NS_COMPOSITION_START:
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return "NS_COMPOSITION_START";
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case NS_COMPOSITION_END:
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return "NS_COMPOSITION_END";
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case NS_COMPOSITION_UPDATE:
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return "NS_COMPOSITION_UPDATE";
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case NS_TEXT_TEXT:
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return "NS_TEXT_TEXT";
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default:
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return "unacceptable event message";
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}
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}
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static const char*
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GetNotifyIMEMessageName(IMEMessage aMessage)
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{
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switch (aMessage) {
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case NOTIFY_IME_OF_CURSOR_POS_CHANGED:
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return "NOTIFY_IME_OF_CURSOR_POS_CHANGED";
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case NOTIFY_IME_OF_FOCUS:
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return "NOTIFY_IME_OF_FOCUS";
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case NOTIFY_IME_OF_BLUR:
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return "NOTIFY_IME_OF_BLUR";
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case NOTIFY_IME_OF_SELECTION_CHANGE:
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return "NOTIFY_IME_OF_SELECTION_CHANGE";
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case NOTIFY_IME_OF_TEXT_CHANGE:
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return "NOTIFY_IME_OF_TEXT_CHANGE";
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case NOTIFY_IME_OF_COMPOSITION_UPDATE:
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return "NOTIFY_IME_OF_COMPOSITION_UPDATE";
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case NOTIFY_IME_OF_POSITION_CHANGE:
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return "NOTIFY_IME_OF_POSITION_CHANGE";
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case REQUEST_TO_COMMIT_COMPOSITION:
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return "REQUEST_TO_COMMIT_COMPOSITION";
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case REQUEST_TO_CANCEL_COMPOSITION:
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return "REQUEST_TO_CANCEL_COMPOSITION";
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default:
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return "unacceptable IME notification message";
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}
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}
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#endif // #ifdef PR_LOGGING
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nsIContent* IMEStateManager::sContent = nullptr;
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nsPresContext* IMEStateManager::sPresContext = nullptr;
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bool IMEStateManager::sInstalledMenuKeyboardListener = false;
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bool IMEStateManager::sIsTestingIME = false;
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bool IMEStateManager::sIsGettingNewIMEState = false;
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// sActiveIMEContentObserver points to the currently active IMEContentObserver.
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// sActiveIMEContentObserver is null if there is no focused editor.
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IMEContentObserver* IMEStateManager::sActiveIMEContentObserver = nullptr;
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TextCompositionArray* IMEStateManager::sTextCompositions = nullptr;
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// static
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void
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IMEStateManager::Init()
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{
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#ifdef PR_LOGGING
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if (!sISMLog) {
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sISMLog = PR_NewLogModule("IMEStateManager");
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}
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#endif
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}
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// static
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void
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IMEStateManager::Shutdown()
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{
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::Shutdown(), "
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"sTextCompositions=0x%p, sTextCompositions->Length()=%u",
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sTextCompositions, sTextCompositions ? sTextCompositions->Length() : 0));
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MOZ_ASSERT(!sTextCompositions || !sTextCompositions->Length());
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delete sTextCompositions;
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sTextCompositions = nullptr;
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}
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// static
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nsresult
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IMEStateManager::OnDestroyPresContext(nsPresContext* aPresContext)
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{
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NS_ENSURE_ARG_POINTER(aPresContext);
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// First, if there is a composition in the aPresContext, clean up it.
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if (sTextCompositions) {
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TextCompositionArray::index_type i =
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sTextCompositions->IndexOf(aPresContext);
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if (i != TextCompositionArray::NoIndex) {
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PR_LOG(sISMLog, PR_LOG_DEBUG,
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("ISM: IMEStateManager::OnDestroyPresContext(), "
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"removing TextComposition instance from the array (index=%u)", i));
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// there should be only one composition per presContext object.
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sTextCompositions->ElementAt(i)->Destroy();
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sTextCompositions->RemoveElementAt(i);
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#if defined DEBUG || PR_LOGGING
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if (sTextCompositions->IndexOf(aPresContext) !=
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TextCompositionArray::NoIndex) {
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PR_LOG(sISMLog, PR_LOG_ERROR,
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("ISM: IMEStateManager::OnDestroyPresContext(), FAILED to remove "
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"TextComposition instance from the array"));
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MOZ_CRASH("Failed to remove TextComposition instance from the array");
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}
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#endif // #if defined DEBUG || PR_LOGGING
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}
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}
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if (aPresContext != sPresContext) {
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return NS_OK;
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}
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::OnDestroyPresContext(aPresContext=0x%p), "
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"sPresContext=0x%p, sContent=0x%p, sTextCompositions=0x%p",
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aPresContext, sPresContext, sContent, sTextCompositions));
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DestroyIMEContentObserver();
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nsCOMPtr<nsIWidget> widget = sPresContext->GetRootWidget();
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if (widget) {
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IMEState newState = GetNewIMEState(sPresContext, nullptr);
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InputContextAction action(InputContextAction::CAUSE_UNKNOWN,
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InputContextAction::LOST_FOCUS);
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SetIMEState(newState, nullptr, widget, action);
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}
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NS_IF_RELEASE(sContent);
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sPresContext = nullptr;
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return NS_OK;
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}
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// static
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nsresult
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IMEStateManager::OnRemoveContent(nsPresContext* aPresContext,
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nsIContent* aContent)
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{
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NS_ENSURE_ARG_POINTER(aPresContext);
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// First, if there is a composition in the aContent, clean up it.
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if (sTextCompositions) {
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nsRefPtr<TextComposition> compositionInContent =
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sTextCompositions->GetCompositionInContent(aPresContext, aContent);
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if (compositionInContent) {
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PR_LOG(sISMLog, PR_LOG_DEBUG,
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("ISM: IMEStateManager::OnRemoveContent(), "
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"composition is in the content"));
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// Try resetting the native IME state. Be aware, typically, this method
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// is called during the content being removed. Then, the native
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// composition events which are caused by following APIs are ignored due
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// to unsafe to run script (in PresShell::HandleEvent()).
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nsCOMPtr<nsIWidget> widget = aPresContext->GetRootWidget();
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if (widget) {
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nsresult rv =
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compositionInContent->NotifyIME(REQUEST_TO_CANCEL_COMPOSITION);
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if (NS_FAILED(rv)) {
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compositionInContent->NotifyIME(REQUEST_TO_COMMIT_COMPOSITION);
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}
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// By calling the APIs, the composition may have been finished normally.
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compositionInContent =
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sTextCompositions->GetCompositionFor(
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compositionInContent->GetPresContext(),
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compositionInContent->GetEventTargetNode());
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}
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}
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// If the compositionInContent is still available, we should finish the
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// composition just on the content forcibly.
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if (compositionInContent) {
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PR_LOG(sISMLog, PR_LOG_DEBUG,
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("ISM: IMEStateManager::OnRemoveContent(), "
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"composition in the content still alive, committing it forcibly..."));
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compositionInContent->SynthesizeCommit(true);
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}
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}
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if (!sPresContext || !sContent ||
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!nsContentUtils::ContentIsDescendantOf(sContent, aContent)) {
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return NS_OK;
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}
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::OnRemoveContent(aPresContext=0x%p, "
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"aContent=0x%p), sPresContext=0x%p, sContent=0x%p, sTextCompositions=0x%p",
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aPresContext, aContent, sPresContext, sContent, sTextCompositions));
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DestroyIMEContentObserver();
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// Current IME transaction should commit
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nsCOMPtr<nsIWidget> widget = sPresContext->GetRootWidget();
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if (widget) {
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IMEState newState = GetNewIMEState(sPresContext, nullptr);
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InputContextAction action(InputContextAction::CAUSE_UNKNOWN,
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InputContextAction::LOST_FOCUS);
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SetIMEState(newState, nullptr, widget, action);
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}
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NS_IF_RELEASE(sContent);
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sPresContext = nullptr;
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return NS_OK;
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}
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// static
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nsresult
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IMEStateManager::OnChangeFocus(nsPresContext* aPresContext,
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nsIContent* aContent,
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InputContextAction::Cause aCause)
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{
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::OnChangeFocus(aPresContext=0x%p, "
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"aContent=0x%p, aCause=%s)",
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aPresContext, aContent, GetActionCauseName(aCause)));
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InputContextAction action(aCause);
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return OnChangeFocusInternal(aPresContext, aContent, action);
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}
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// static
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nsresult
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IMEStateManager::OnChangeFocusInternal(nsPresContext* aPresContext,
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nsIContent* aContent,
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InputContextAction aAction)
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{
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::OnChangeFocusInternal(aPresContext=0x%p, "
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"aContent=0x%p, aAction={ mCause=%s, mFocusChange=%s }), "
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"sPresContext=0x%p, sContent=0x%p, sActiveIMEContentObserver=0x%p",
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aPresContext, aContent, GetActionCauseName(aAction.mCause),
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GetActionFocusChangeName(aAction.mFocusChange),
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sPresContext, sContent, sActiveIMEContentObserver));
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bool focusActuallyChanging =
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(sContent != aContent || sPresContext != aPresContext);
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nsCOMPtr<nsIWidget> oldWidget =
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sPresContext ? sPresContext->GetRootWidget() : nullptr;
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if (oldWidget && focusActuallyChanging) {
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// If we're deactivating, we shouldn't commit composition forcibly because
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// the user may want to continue the composition.
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if (aPresContext) {
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NotifyIME(REQUEST_TO_COMMIT_COMPOSITION, oldWidget);
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}
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}
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if (sActiveIMEContentObserver &&
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(aPresContext || !sActiveIMEContentObserver->KeepAliveDuringDeactive()) &&
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!sActiveIMEContentObserver->IsManaging(aPresContext, aContent)) {
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DestroyIMEContentObserver();
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}
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if (!aPresContext) {
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PR_LOG(sISMLog, PR_LOG_DEBUG,
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("ISM: IMEStateManager::OnChangeFocusInternal(), "
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"no nsPresContext is being activated"));
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return NS_OK;
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}
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nsCOMPtr<nsIWidget> widget =
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(sPresContext == aPresContext) ? oldWidget.get() :
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aPresContext->GetRootWidget();
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if (NS_WARN_IF(!widget)) {
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PR_LOG(sISMLog, PR_LOG_ERROR,
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("ISM: IMEStateManager::OnChangeFocusInternal(), FAILED due to "
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"no widget to manage its IME state"));
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return NS_OK;
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}
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IMEState newState = GetNewIMEState(aPresContext, aContent);
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if (!focusActuallyChanging) {
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// actual focus isn't changing, but if IME enabled state is changing,
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// we should do it.
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InputContext context = widget->GetInputContext();
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if (context.mIMEState.mEnabled == newState.mEnabled) {
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PR_LOG(sISMLog, PR_LOG_DEBUG,
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("ISM: IMEStateManager::OnChangeFocusInternal(), "
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"neither focus nor IME state is changing"));
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return NS_OK;
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}
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aAction.mFocusChange = InputContextAction::FOCUS_NOT_CHANGED;
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// Even if focus isn't changing actually, we should commit current
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// composition here since the IME state is changing.
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if (sPresContext && oldWidget && !focusActuallyChanging) {
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NotifyIME(REQUEST_TO_COMMIT_COMPOSITION, oldWidget);
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}
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} else if (aAction.mFocusChange == InputContextAction::FOCUS_NOT_CHANGED) {
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// If aContent isn't null or aContent is null but editable, somebody gets
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// focus.
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bool gotFocus = aContent || (newState.mEnabled == IMEState::ENABLED);
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aAction.mFocusChange =
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gotFocus ? InputContextAction::GOT_FOCUS : InputContextAction::LOST_FOCUS;
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}
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// Update IME state for new focus widget
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SetIMEState(newState, aContent, widget, aAction);
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sPresContext = aPresContext;
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if (sContent != aContent) {
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NS_IF_RELEASE(sContent);
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NS_IF_ADDREF(sContent = aContent);
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}
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// Don't call CreateIMEContentObserver() here, it should be called from
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// focus event handler of editor.
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return NS_OK;
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}
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// static
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void
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IMEStateManager::OnInstalledMenuKeyboardListener(bool aInstalling)
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{
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::OnInstalledMenuKeyboardListener(aInstalling=%s), "
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"sInstalledMenuKeyboardListener=%s",
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GetBoolName(aInstalling), GetBoolName(sInstalledMenuKeyboardListener)));
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sInstalledMenuKeyboardListener = aInstalling;
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InputContextAction action(InputContextAction::CAUSE_UNKNOWN,
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aInstalling ? InputContextAction::MENU_GOT_PSEUDO_FOCUS :
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InputContextAction::MENU_LOST_PSEUDO_FOCUS);
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OnChangeFocusInternal(sPresContext, sContent, action);
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}
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// static
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bool
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IMEStateManager::OnMouseButtonEventInEditor(nsPresContext* aPresContext,
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nsIContent* aContent,
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nsIDOMMouseEvent* aMouseEvent)
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{
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PR_LOG(sISMLog, PR_LOG_ALWAYS,
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("ISM: IMEStateManager::OnMouseButtonEventInEditor(aPresContext=0x%p, "
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"aContent=0x%p, aMouseEvent=0x%p), sPresContext=0x%p, sContent=0x%p",
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aPresContext, aContent, aMouseEvent, sPresContext, sContent));
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if (sPresContext != aPresContext || sContent != aContent) {
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PR_LOG(sISMLog, PR_LOG_DEBUG,
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("ISM: IMEStateManager::OnMouseButtonEventInEditor(), "
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"the mouse event isn't fired on the editor managed by ISM"));
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|
return false;
|
|
}
|
|
|
|
if (!sActiveIMEContentObserver) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnMouseButtonEventInEditor(), "
|
|
"there is no active IMEContentObserver"));
|
|
return false;
|
|
}
|
|
|
|
if (!sActiveIMEContentObserver->IsManaging(aPresContext, aContent)) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnMouseButtonEventInEditor(), "
|
|
"the active IMEContentObserver isn't managing the editor"));
|
|
return false;
|
|
}
|
|
|
|
WidgetMouseEvent* internalEvent =
|
|
aMouseEvent->GetInternalNSEvent()->AsMouseEvent();
|
|
if (NS_WARN_IF(!internalEvent)) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnMouseButtonEventInEditor(), "
|
|
"the internal event of aMouseEvent isn't WidgetMouseEvent"));
|
|
return false;
|
|
}
|
|
|
|
bool consumed =
|
|
sActiveIMEContentObserver->OnMouseButtonEvent(aPresContext, internalEvent);
|
|
|
|
#ifdef PR_LOGGING
|
|
nsAutoString eventType;
|
|
aMouseEvent->GetType(eventType);
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::OnMouseButtonEventInEditor(), "
|
|
"mouse event (type=%s, button=%d) is %s",
|
|
NS_ConvertUTF16toUTF8(eventType).get(), internalEvent->button,
|
|
consumed ? "consumed" : "not consumed"));
|
|
#endif
|
|
|
|
return consumed;
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::OnClickInEditor(nsPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIDOMMouseEvent* aMouseEvent)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::OnClickInEditor(aPresContext=0x%p, aContent=0x%p, "
|
|
"aMouseEvent=0x%p), sPresContext=0x%p, sContent=0x%p",
|
|
aPresContext, aContent, aMouseEvent, sPresContext, sContent));
|
|
|
|
if (sPresContext != aPresContext || sContent != aContent) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnClickInEditor(), "
|
|
"the mouse event isn't fired on the editor managed by ISM"));
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIWidget> widget = aPresContext->GetRootWidget();
|
|
NS_ENSURE_TRUE_VOID(widget);
|
|
|
|
bool isTrusted;
|
|
nsresult rv = aMouseEvent->GetIsTrusted(&isTrusted);
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
if (!isTrusted) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnClickInEditor(), "
|
|
"the mouse event isn't a trusted event"));
|
|
return; // ignore untrusted event.
|
|
}
|
|
|
|
int16_t button;
|
|
rv = aMouseEvent->GetButton(&button);
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
if (button != 0) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnClickInEditor(), "
|
|
"the mouse event isn't a left mouse button event"));
|
|
return; // not a left click event.
|
|
}
|
|
|
|
int32_t clickCount;
|
|
rv = aMouseEvent->GetDetail(&clickCount);
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
if (clickCount != 1) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnClickInEditor(), "
|
|
"the mouse event isn't a single click event"));
|
|
return; // should notify only first click event.
|
|
}
|
|
|
|
InputContextAction action(InputContextAction::CAUSE_MOUSE,
|
|
InputContextAction::FOCUS_NOT_CHANGED);
|
|
IMEState newState = GetNewIMEState(aPresContext, aContent);
|
|
SetIMEState(newState, aContent, widget, action);
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::OnFocusInEditor(nsPresContext* aPresContext,
|
|
nsIContent* aContent)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::OnFocusInEditor(aPresContext=0x%p, aContent=0x%p), "
|
|
"sPresContext=0x%p, sContent=0x%p, sActiveIMEContentObserver=0x%p",
|
|
aPresContext, aContent, sPresContext, sContent,
|
|
sActiveIMEContentObserver));
|
|
|
|
if (sPresContext != aPresContext || sContent != aContent) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnFocusInEditor(), "
|
|
"an editor not managed by ISM gets focus"));
|
|
return;
|
|
}
|
|
|
|
// If the IMEContentObserver instance isn't managing the editor actually,
|
|
// we need to recreate the instance.
|
|
if (sActiveIMEContentObserver) {
|
|
if (sActiveIMEContentObserver->IsManaging(aPresContext, aContent)) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::OnFocusInEditor(), "
|
|
"the editor is already being managed by sActiveIMEContentObserver"));
|
|
return;
|
|
}
|
|
DestroyIMEContentObserver();
|
|
}
|
|
|
|
CreateIMEContentObserver();
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::UpdateIMEState(const IMEState& aNewIMEState,
|
|
nsIContent* aContent)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::UpdateIMEState(aNewIMEState={ mEnabled=%s, "
|
|
"mOpen=%s }, aContent=0x%p), "
|
|
"sPresContext=0x%p, sContent=0x%p, sActiveIMEContentObserver=0x%p, "
|
|
"sIsGettingNewIMEState=%s",
|
|
GetIMEStateEnabledName(aNewIMEState.mEnabled),
|
|
GetIMEStateSetOpenName(aNewIMEState.mOpen), aContent,
|
|
sPresContext, sContent, sActiveIMEContentObserver,
|
|
GetBoolName(sIsGettingNewIMEState)));
|
|
|
|
if (sIsGettingNewIMEState) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::UpdateIMEState(), "
|
|
"does nothing because of called while getting new IME state"));
|
|
return;
|
|
}
|
|
|
|
if (NS_WARN_IF(!sPresContext)) {
|
|
PR_LOG(sISMLog, PR_LOG_ERROR,
|
|
("ISM: IMEStateManager::UpdateIMEState(), FAILED due to "
|
|
"no managing nsPresContext"));
|
|
return;
|
|
}
|
|
nsCOMPtr<nsIWidget> widget = sPresContext->GetRootWidget();
|
|
if (NS_WARN_IF(!widget)) {
|
|
PR_LOG(sISMLog, PR_LOG_ERROR,
|
|
("ISM: IMEStateManager::UpdateIMEState(), FAILED due to "
|
|
"no widget for the managing nsPresContext"));
|
|
return;
|
|
}
|
|
|
|
// If the IMEContentObserver instance isn't managing the editor's current
|
|
// editable root content, the editor frame might be reframed. We should
|
|
// recreate the instance at that time.
|
|
bool createTextStateManager =
|
|
(!sActiveIMEContentObserver ||
|
|
!sActiveIMEContentObserver->IsManaging(sPresContext, aContent));
|
|
|
|
bool updateIMEState =
|
|
(widget->GetInputContext().mIMEState.mEnabled != aNewIMEState.mEnabled);
|
|
|
|
if (updateIMEState) {
|
|
// commit current composition before modifying IME state.
|
|
NotifyIME(REQUEST_TO_COMMIT_COMPOSITION, widget);
|
|
}
|
|
|
|
if (createTextStateManager) {
|
|
DestroyIMEContentObserver();
|
|
}
|
|
|
|
if (updateIMEState) {
|
|
InputContextAction action(InputContextAction::CAUSE_UNKNOWN,
|
|
InputContextAction::FOCUS_NOT_CHANGED);
|
|
SetIMEState(aNewIMEState, aContent, widget, action);
|
|
}
|
|
|
|
if (createTextStateManager) {
|
|
CreateIMEContentObserver();
|
|
}
|
|
}
|
|
|
|
// static
|
|
IMEState
|
|
IMEStateManager::GetNewIMEState(nsPresContext* aPresContext,
|
|
nsIContent* aContent)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::GetNewIMEState(aPresContext=0x%p, aContent=0x%p), "
|
|
"sInstalledMenuKeyboardListener=%s",
|
|
aPresContext, aContent, GetBoolName(sInstalledMenuKeyboardListener)));
|
|
|
|
// On Printing or Print Preview, we don't need IME.
|
|
if (aPresContext->Type() == nsPresContext::eContext_PrintPreview ||
|
|
aPresContext->Type() == nsPresContext::eContext_Print) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::GetNewIMEState() returns DISABLED because "
|
|
"the nsPresContext is for print or print preview"));
|
|
return IMEState(IMEState::DISABLED);
|
|
}
|
|
|
|
if (sInstalledMenuKeyboardListener) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::GetNewIMEState() returns DISABLED because "
|
|
"menu keyboard listener was installed"));
|
|
return IMEState(IMEState::DISABLED);
|
|
}
|
|
|
|
if (!aContent) {
|
|
// Even if there are no focused content, the focused document might be
|
|
// editable, such case is design mode.
|
|
nsIDocument* doc = aPresContext->Document();
|
|
if (doc && doc->HasFlag(NODE_IS_EDITABLE)) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::GetNewIMEState() returns ENABLED because "
|
|
"design mode editor has focus"));
|
|
return IMEState(IMEState::ENABLED);
|
|
}
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::GetNewIMEState() returns DISABLED because "
|
|
"no content has focus"));
|
|
return IMEState(IMEState::DISABLED);
|
|
}
|
|
|
|
// nsIContent::GetDesiredIMEState() may cause a call of UpdateIMEState()
|
|
// from nsEditor::PostCreate() because GetDesiredIMEState() needs to retrieve
|
|
// an editor instance for the element if it's editable element.
|
|
// For avoiding such nested IME state updates, we should set
|
|
// sIsGettingNewIMEState here and UpdateIMEState() should check it.
|
|
GettingNewIMEStateBlocker blocker;
|
|
|
|
IMEState newIMEState = aContent->GetDesiredIMEState();
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::GetNewIMEState() returns { mEnabled=%s, "
|
|
"mOpen=%s }",
|
|
GetIMEStateEnabledName(newIMEState.mEnabled),
|
|
GetIMEStateSetOpenName(newIMEState.mOpen)));
|
|
return newIMEState;
|
|
}
|
|
|
|
// Helper class, used for IME enabled state change notification
|
|
class IMEEnabledStateChangedEvent : public nsRunnable {
|
|
public:
|
|
explicit IMEEnabledStateChangedEvent(uint32_t aState)
|
|
: mState(aState)
|
|
{
|
|
}
|
|
|
|
NS_IMETHOD Run()
|
|
{
|
|
nsCOMPtr<nsIObserverService> observerService =
|
|
services::GetObserverService();
|
|
if (observerService) {
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEEnabledStateChangedEvent::Run(), notifies observers of "
|
|
"\"ime-enabled-state-changed\""));
|
|
nsAutoString state;
|
|
state.AppendInt(mState);
|
|
observerService->NotifyObservers(nullptr, "ime-enabled-state-changed",
|
|
state.get());
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
uint32_t mState;
|
|
};
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::SetIMEState(const IMEState& aState,
|
|
nsIContent* aContent,
|
|
nsIWidget* aWidget,
|
|
InputContextAction aAction)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::SetIMEState(aState={ mEnabled=%s, mOpen=%s }, "
|
|
"aContent=0x%p, aWidget=0x%p, aAction={ mCause=%s, mFocusChange=%s })",
|
|
GetIMEStateEnabledName(aState.mEnabled),
|
|
GetIMEStateSetOpenName(aState.mOpen), aContent, aWidget,
|
|
GetActionCauseName(aAction.mCause),
|
|
GetActionFocusChangeName(aAction.mFocusChange)));
|
|
|
|
NS_ENSURE_TRUE_VOID(aWidget);
|
|
|
|
InputContext oldContext = aWidget->GetInputContext();
|
|
|
|
InputContext context;
|
|
context.mIMEState = aState;
|
|
|
|
if (aContent && aContent->GetNameSpaceID() == kNameSpaceID_XHTML &&
|
|
(aContent->Tag() == nsGkAtoms::input ||
|
|
aContent->Tag() == nsGkAtoms::textarea)) {
|
|
if (aContent->Tag() != nsGkAtoms::textarea) {
|
|
// <input type=number> has an anonymous <input type=text> descendant
|
|
// that gets focus whenever anyone tries to focus the number control. We
|
|
// need to check if aContent is one of those anonymous text controls and,
|
|
// if so, use the number control instead:
|
|
nsIContent* content = aContent;
|
|
HTMLInputElement* inputElement =
|
|
HTMLInputElement::FromContentOrNull(aContent);
|
|
if (inputElement) {
|
|
HTMLInputElement* ownerNumberControl =
|
|
inputElement->GetOwnerNumberControl();
|
|
if (ownerNumberControl) {
|
|
content = ownerNumberControl; // an <input type=number>
|
|
}
|
|
}
|
|
content->GetAttr(kNameSpaceID_None, nsGkAtoms::type,
|
|
context.mHTMLInputType);
|
|
} else {
|
|
context.mHTMLInputType.Assign(nsGkAtoms::textarea->GetUTF16String());
|
|
}
|
|
|
|
if (Preferences::GetBool("dom.forms.inputmode", false)) {
|
|
aContent->GetAttr(kNameSpaceID_None, nsGkAtoms::inputmode,
|
|
context.mHTMLInputInputmode);
|
|
}
|
|
|
|
aContent->GetAttr(kNameSpaceID_None, nsGkAtoms::moz_action_hint,
|
|
context.mActionHint);
|
|
|
|
// Get the input content corresponding to the focused node,
|
|
// which may be an anonymous child of the input content.
|
|
nsIContent* inputContent = aContent->FindFirstNonChromeOnlyAccessContent();
|
|
|
|
// If we don't have an action hint and
|
|
// return won't submit the form, use "next".
|
|
if (context.mActionHint.IsEmpty() &&
|
|
inputContent->Tag() == nsGkAtoms::input) {
|
|
bool willSubmit = false;
|
|
nsCOMPtr<nsIFormControl> control(do_QueryInterface(inputContent));
|
|
mozilla::dom::Element* formElement = control->GetFormElement();
|
|
nsCOMPtr<nsIForm> form;
|
|
if (control) {
|
|
// is this a form and does it have a default submit element?
|
|
if ((form = do_QueryInterface(formElement)) &&
|
|
form->GetDefaultSubmitElement()) {
|
|
willSubmit = true;
|
|
// is this an html form and does it only have a single text input element?
|
|
} else if (formElement && formElement->Tag() == nsGkAtoms::form &&
|
|
formElement->IsHTML() &&
|
|
!static_cast<dom::HTMLFormElement*>(formElement)->
|
|
ImplicitSubmissionIsDisabled()) {
|
|
willSubmit = true;
|
|
}
|
|
}
|
|
context.mActionHint.Assign(
|
|
willSubmit ? (control->GetType() == NS_FORM_INPUT_SEARCH ?
|
|
NS_LITERAL_STRING("search") : NS_LITERAL_STRING("go")) :
|
|
(formElement ?
|
|
NS_LITERAL_STRING("next") : EmptyString()));
|
|
}
|
|
}
|
|
|
|
// XXX I think that we should use nsContentUtils::IsCallerChrome() instead
|
|
// of the process type.
|
|
if (aAction.mCause == InputContextAction::CAUSE_UNKNOWN &&
|
|
XRE_GetProcessType() != GeckoProcessType_Content) {
|
|
aAction.mCause = InputContextAction::CAUSE_UNKNOWN_CHROME;
|
|
}
|
|
|
|
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::SetIMEState(), "
|
|
"calling nsIWidget::SetInputContext(context={ mIMEState={ mEnabled=%s, "
|
|
"mOpen=%s }, mHTMLInputType=\"%s\", mHTMLInputInputmode=\"%s\", "
|
|
"mActionHint=\"%s\" }, aAction={ mCause=%s, mAction=%s })",
|
|
GetIMEStateEnabledName(context.mIMEState.mEnabled),
|
|
GetIMEStateSetOpenName(context.mIMEState.mOpen),
|
|
NS_ConvertUTF16toUTF8(context.mHTMLInputType).get(),
|
|
NS_ConvertUTF16toUTF8(context.mHTMLInputInputmode).get(),
|
|
NS_ConvertUTF16toUTF8(context.mActionHint).get(),
|
|
GetActionCauseName(aAction.mCause),
|
|
GetActionFocusChangeName(aAction.mFocusChange)));
|
|
|
|
aWidget->SetInputContext(context, aAction);
|
|
if (oldContext.mIMEState.mEnabled == context.mIMEState.mEnabled) {
|
|
return;
|
|
}
|
|
|
|
nsContentUtils::AddScriptRunner(
|
|
new IMEEnabledStateChangedEvent(context.mIMEState.mEnabled));
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::EnsureTextCompositionArray()
|
|
{
|
|
if (sTextCompositions) {
|
|
return;
|
|
}
|
|
sTextCompositions = new TextCompositionArray();
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::DispatchCompositionEvent(nsINode* aEventTargetNode,
|
|
nsPresContext* aPresContext,
|
|
WidgetEvent* aEvent,
|
|
nsEventStatus* aStatus,
|
|
EventDispatchingCallback* aCallBack)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::DispatchCompositionEvent(aNode=0x%p, "
|
|
"aPresContext=0x%p, aEvent={ mClass=%s, message=%s, "
|
|
" mFlags={ mIsTrusted=%s, mPropagationStopped=%s } })",
|
|
aEventTargetNode, aPresContext,
|
|
GetEventClassIDName(aEvent->mClass),
|
|
GetEventMessageName(aEvent->message),
|
|
GetBoolName(aEvent->mFlags.mIsTrusted),
|
|
GetBoolName(aEvent->mFlags.mPropagationStopped)));
|
|
|
|
MOZ_ASSERT(aEvent->mClass == eCompositionEventClass ||
|
|
aEvent->mClass == eTextEventClass);
|
|
if (!aEvent->mFlags.mIsTrusted || aEvent->mFlags.mPropagationStopped) {
|
|
return;
|
|
}
|
|
|
|
EnsureTextCompositionArray();
|
|
|
|
WidgetGUIEvent* GUIEvent = aEvent->AsGUIEvent();
|
|
|
|
nsRefPtr<TextComposition> composition =
|
|
sTextCompositions->GetCompositionFor(GUIEvent->widget);
|
|
if (!composition) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::DispatchCompositionEvent(), "
|
|
"adding new TextComposition to the array"));
|
|
MOZ_ASSERT(GUIEvent->message == NS_COMPOSITION_START);
|
|
composition = new TextComposition(aPresContext, aEventTargetNode, GUIEvent);
|
|
sTextCompositions->AppendElement(composition);
|
|
}
|
|
#ifdef DEBUG
|
|
else {
|
|
MOZ_ASSERT(GUIEvent->message != NS_COMPOSITION_START);
|
|
}
|
|
#endif // #ifdef DEBUG
|
|
|
|
// Dispatch the event on composing target.
|
|
composition->DispatchEvent(GUIEvent, aStatus, aCallBack);
|
|
|
|
// WARNING: the |composition| might have been destroyed already.
|
|
|
|
// Remove the ended composition from the array.
|
|
if (aEvent->message == NS_COMPOSITION_END) {
|
|
TextCompositionArray::index_type i =
|
|
sTextCompositions->IndexOf(GUIEvent->widget);
|
|
if (i != TextCompositionArray::NoIndex) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::DispatchCompositionEvent(), "
|
|
"removing TextComposition from the array since NS_COMPOSTION_END "
|
|
"was dispatched"));
|
|
sTextCompositions->ElementAt(i)->Destroy();
|
|
sTextCompositions->RemoveElementAt(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
// static
|
|
nsresult
|
|
IMEStateManager::NotifyIME(IMEMessage aMessage,
|
|
nsIWidget* aWidget)
|
|
{
|
|
nsRefPtr<TextComposition> composition;
|
|
if (aWidget && sTextCompositions) {
|
|
composition = sTextCompositions->GetCompositionFor(aWidget);
|
|
}
|
|
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::NotifyIME(aMessage=%s, aWidget=0x%p), "
|
|
"composition=0x%p, composition->IsSynthesizedForTests()=%s",
|
|
GetNotifyIMEMessageName(aMessage), aWidget, composition.get(),
|
|
GetBoolName(composition ? composition->IsSynthesizedForTests() : false)));
|
|
|
|
if (NS_WARN_IF(!aWidget)) {
|
|
PR_LOG(sISMLog, PR_LOG_ERROR,
|
|
("ISM: IMEStateManager::NotifyIME(), FAILED due to no widget"));
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
if (!composition || !composition->IsSynthesizedForTests()) {
|
|
switch (aMessage) {
|
|
case NOTIFY_IME_OF_CURSOR_POS_CHANGED:
|
|
return aWidget->NotifyIME(IMENotification(aMessage));
|
|
case REQUEST_TO_COMMIT_COMPOSITION:
|
|
case REQUEST_TO_CANCEL_COMPOSITION:
|
|
case NOTIFY_IME_OF_COMPOSITION_UPDATE:
|
|
return composition ?
|
|
aWidget->NotifyIME(IMENotification(aMessage)) : NS_OK;
|
|
default:
|
|
MOZ_CRASH("Unsupported notification");
|
|
}
|
|
MOZ_CRASH(
|
|
"Failed to handle the notification for non-synthesized composition");
|
|
}
|
|
|
|
// If the composition is synthesized events for automated tests, we should
|
|
// dispatch composition events for emulating the native composition behavior.
|
|
// NOTE: The dispatched events are discarded if it's not safe to run script.
|
|
switch (aMessage) {
|
|
case REQUEST_TO_COMMIT_COMPOSITION: {
|
|
nsCOMPtr<nsIWidget> widget(aWidget);
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
if (!composition->LastData().IsEmpty()) {
|
|
WidgetTextEvent textEvent(true, NS_TEXT_TEXT, widget);
|
|
textEvent.theText = composition->LastData();
|
|
textEvent.mFlags.mIsSynthesizedForTests = true;
|
|
widget->DispatchEvent(&textEvent, status);
|
|
if (widget->Destroyed()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
status = nsEventStatus_eIgnore;
|
|
WidgetCompositionEvent endEvent(true, NS_COMPOSITION_END, widget);
|
|
endEvent.data = composition->LastData();
|
|
endEvent.mFlags.mIsSynthesizedForTests = true;
|
|
widget->DispatchEvent(&endEvent, status);
|
|
|
|
return NS_OK;
|
|
}
|
|
case REQUEST_TO_CANCEL_COMPOSITION: {
|
|
nsCOMPtr<nsIWidget> widget(aWidget);
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
if (!composition->LastData().IsEmpty()) {
|
|
WidgetCompositionEvent updateEvent(true, NS_COMPOSITION_UPDATE, widget);
|
|
updateEvent.data = composition->LastData();
|
|
updateEvent.mFlags.mIsSynthesizedForTests = true;
|
|
widget->DispatchEvent(&updateEvent, status);
|
|
if (widget->Destroyed()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
status = nsEventStatus_eIgnore;
|
|
WidgetTextEvent textEvent(true, NS_TEXT_TEXT, widget);
|
|
textEvent.theText = composition->LastData();
|
|
textEvent.mFlags.mIsSynthesizedForTests = true;
|
|
widget->DispatchEvent(&textEvent, status);
|
|
if (widget->Destroyed()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
status = nsEventStatus_eIgnore;
|
|
WidgetCompositionEvent endEvent(true, NS_COMPOSITION_END, widget);
|
|
endEvent.data = composition->LastData();
|
|
endEvent.mFlags.mIsSynthesizedForTests = true;
|
|
widget->DispatchEvent(&endEvent, status);
|
|
|
|
return NS_OK;
|
|
}
|
|
default:
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
// static
|
|
nsresult
|
|
IMEStateManager::NotifyIME(IMEMessage aMessage,
|
|
nsPresContext* aPresContext)
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::NotifyIME(aMessage=%s, aPresContext=0x%p)",
|
|
GetNotifyIMEMessageName(aMessage), aPresContext));
|
|
|
|
NS_ENSURE_TRUE(aPresContext, NS_ERROR_INVALID_ARG);
|
|
|
|
nsIWidget* widget = aPresContext->GetRootWidget();
|
|
if (NS_WARN_IF(!widget)) {
|
|
PR_LOG(sISMLog, PR_LOG_ERROR,
|
|
("ISM: IMEStateManager::NotifyIME(), FAILED due to no widget for the "
|
|
"nsPresContext"));
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
return NotifyIME(aMessage, widget);
|
|
}
|
|
|
|
// static
|
|
bool
|
|
IMEStateManager::IsEditable(nsINode* node)
|
|
{
|
|
if (node->IsEditable()) {
|
|
return true;
|
|
}
|
|
// |node| might be readwrite (for example, a text control)
|
|
if (node->IsElement() &&
|
|
node->AsElement()->State().HasState(NS_EVENT_STATE_MOZ_READWRITE)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// static
|
|
nsINode*
|
|
IMEStateManager::GetRootEditableNode(nsPresContext* aPresContext,
|
|
nsIContent* aContent)
|
|
{
|
|
if (aContent) {
|
|
nsINode* root = nullptr;
|
|
nsINode* node = aContent;
|
|
while (node && IsEditable(node)) {
|
|
root = node;
|
|
node = node->GetParentNode();
|
|
}
|
|
return root;
|
|
}
|
|
if (aPresContext) {
|
|
nsIDocument* document = aPresContext->Document();
|
|
if (document && document->IsEditable()) {
|
|
return document;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
// static
|
|
bool
|
|
IMEStateManager::IsEditableIMEState(nsIWidget* aWidget)
|
|
{
|
|
switch (aWidget->GetInputContext().mIMEState.mEnabled) {
|
|
case IMEState::ENABLED:
|
|
case IMEState::PASSWORD:
|
|
return true;
|
|
case IMEState::PLUGIN:
|
|
case IMEState::DISABLED:
|
|
return false;
|
|
default:
|
|
MOZ_CRASH("Unknown IME enable state");
|
|
}
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::DestroyIMEContentObserver()
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::DestroyIMEContentObserver(), "
|
|
"sActiveIMEContentObserver=0x%p",
|
|
sActiveIMEContentObserver));
|
|
|
|
if (!sActiveIMEContentObserver) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::DestroyIMEContentObserver() does nothing"));
|
|
return;
|
|
}
|
|
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::DestroyIMEContentObserver(), destroying "
|
|
"the active IMEContentObserver..."));
|
|
nsRefPtr<IMEContentObserver> tsm;
|
|
tsm.swap(sActiveIMEContentObserver);
|
|
tsm->Destroy();
|
|
}
|
|
|
|
// static
|
|
void
|
|
IMEStateManager::CreateIMEContentObserver()
|
|
{
|
|
PR_LOG(sISMLog, PR_LOG_ALWAYS,
|
|
("ISM: IMEStateManager::CreateIMEContentObserver(), "
|
|
"sPresContext=0x%p, sContent=0x%p, sActiveIMEContentObserver=0x%p, "
|
|
"sActiveIMEContentObserver->IsManaging(sPresContext, sContent)=%s",
|
|
sPresContext, sContent, sActiveIMEContentObserver,
|
|
GetBoolName(sActiveIMEContentObserver ?
|
|
sActiveIMEContentObserver->IsManaging(sPresContext, sContent) : false)));
|
|
|
|
if (NS_WARN_IF(sActiveIMEContentObserver)) {
|
|
PR_LOG(sISMLog, PR_LOG_ERROR,
|
|
("ISM: IMEStateManager::CreateIMEContentObserver(), FAILED due to "
|
|
"there is already an active IMEContentObserver"));
|
|
MOZ_ASSERT(sActiveIMEContentObserver->IsManaging(sPresContext, sContent));
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIWidget> widget = sPresContext->GetRootWidget();
|
|
if (!widget) {
|
|
PR_LOG(sISMLog, PR_LOG_ERROR,
|
|
("ISM: IMEStateManager::CreateIMEContentObserver(), FAILED due to "
|
|
"there is a root widget for the nsPresContext"));
|
|
return; // Sometimes, there are no widgets.
|
|
}
|
|
|
|
// If it's not text ediable, we don't need to create IMEContentObserver.
|
|
if (!IsEditableIMEState(widget)) {
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::CreateIMEContentObserver() doesn't create "
|
|
"IMEContentObserver because of non-editable IME state"));
|
|
return;
|
|
}
|
|
|
|
static bool sInitializeIsTestingIME = true;
|
|
if (sInitializeIsTestingIME) {
|
|
Preferences::AddBoolVarCache(&sIsTestingIME, "test.IME", false);
|
|
sInitializeIsTestingIME = false;
|
|
}
|
|
|
|
PR_LOG(sISMLog, PR_LOG_DEBUG,
|
|
("ISM: IMEStateManager::CreateIMEContentObserver() is creating an "
|
|
"IMEContentObserver instance..."));
|
|
sActiveIMEContentObserver = new IMEContentObserver();
|
|
NS_ADDREF(sActiveIMEContentObserver);
|
|
|
|
// IMEContentObserver::Init() might create another IMEContentObserver
|
|
// instance. So, sActiveIMEContentObserver would be replaced with new one.
|
|
// We should hold the current instance here.
|
|
nsRefPtr<IMEContentObserver> kungFuDeathGrip(sActiveIMEContentObserver);
|
|
sActiveIMEContentObserver->Init(widget, sPresContext, sContent);
|
|
}
|
|
|
|
// static
|
|
nsresult
|
|
IMEStateManager::GetFocusSelectionAndRoot(nsISelection** aSelection,
|
|
nsIContent** aRootContent)
|
|
{
|
|
if (!sActiveIMEContentObserver) {
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
return sActiveIMEContentObserver->GetSelectionAndRoot(aSelection,
|
|
aRootContent);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextComposition>
|
|
IMEStateManager::GetTextCompositionFor(nsIWidget* aWidget)
|
|
{
|
|
if (!sTextCompositions) {
|
|
return nullptr;
|
|
}
|
|
nsRefPtr<TextComposition> textComposition =
|
|
sTextCompositions->GetCompositionFor(aWidget);
|
|
return textComposition.forget();
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextComposition>
|
|
IMEStateManager::GetTextCompositionFor(WidgetGUIEvent* aEvent)
|
|
{
|
|
MOZ_ASSERT(aEvent->AsCompositionEvent() || aEvent->AsTextEvent() ||
|
|
aEvent->AsKeyboardEvent(),
|
|
"aEvent has to be WidgetCompositionEvent, WidgetTextEvent or "
|
|
"WidgetKeyboardEvent");
|
|
return GetTextCompositionFor(aEvent->widget);
|
|
}
|
|
|
|
} // namespace mozilla
|