diff -r 000000000000 -r 16d8024aca5e src/hbplugins/inputmethods/touchinput/hbinputbasicqwertyhandler.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/hbplugins/inputmethods/touchinput/hbinputbasicqwertyhandler.cpp Mon Apr 19 14:02:13 2010 +0300 @@ -0,0 +1,369 @@ +/**************************************************************************** +** +** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (developer.feedback@nokia.com) +** +** This file is part of the HbPlugins module of the UI Extensions for Mobile. +** +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this file. +** Please review the following information to ensure the GNU Lesser General +** Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at developer.feedback@nokia.com. +** +****************************************************************************/ + +#include +#include +#include +#include +#include + +#include "hbinputabstractbase.h" +#include "hbinputbasicqwertyhandler.h" +#include "hbinputbasichandler_p.h" + +class HbInputBasicQwertyHandlerPrivate: public HbInputBasicHandlerPrivate +{ + Q_DECLARE_PUBLIC(HbInputBasicQwertyHandler) +public: + HbInputBasicQwertyHandlerPrivate(); + ~HbInputBasicQwertyHandlerPrivate(); + + void init(); + + // button related operations. + bool buttonPressed(const QKeyEvent *event); + bool buttonReleased(const QKeyEvent *event); + void _q_timeout(); + +public: + HbFnState mFnState; + int mButton; + bool mPreviewAvailable; + QChar mPrevDeadKey; + HbInputFocusObject *mCurrentlyFocused; +}; + +HbInputBasicQwertyHandlerPrivate::HbInputBasicQwertyHandlerPrivate() +:mFnState(HbFnOff), +mButton(0), +mPreviewAvailable(false), +mPrevDeadKey(0), +mCurrentlyFocused(0) +{ +} + +HbInputBasicQwertyHandlerPrivate::~HbInputBasicQwertyHandlerPrivate() +{ +} + +void HbInputBasicQwertyHandlerPrivate::init() +{ +} + +bool HbInputBasicQwertyHandlerPrivate::buttonPressed(const QKeyEvent * event) +{ + if (!mKeymap->isDeadKey(event->key())) { + mButton = event->key(); + mTimer->start(HbLongPressTimerTimeout); + mPreviewAvailable = false; + } + return false; +} + +bool HbInputBasicQwertyHandlerPrivate::buttonReleased(const QKeyEvent *event) +{ + Q_Q(HbInputBasicQwertyHandler); + int buttonId = event->key(); + QChar firstChar = 0; + QChar secondChar = 0; + + // If the timer is not active and it is alpha mode, it is a long press + // and handled in another function. So just return. + if (mTimer->isActive()) { + mTimer->stop(); + } else if (buttonId == Qt::Key_Control) { + return false; + } else if (!(buttonId & 0xffff0000) && mPreviewAvailable) { + return false; + } + + HbInputFocusObject *focusObject = 0; + focusObject = mInputMethod->focusObject(); + if (!focusObject) { + qDebug("HbInputBasicQwertyHandler::virtualButtonClicked : no focused editor widget!"); + return false; + } + int currentTextCase = focusObject->editorInterface().textCase(); + const HbMappedKey *mappedKey = mKeymap->keyForKeycode(HbKeyboardVirtualQwerty, event->key()); + QChar newChar; + if (mFnState == HbFnNext) { + newChar = (mappedKey->characters(HbModifierFnPressed)).at(0); + mFnState = HbFnOff; + } else { + if (currentTextCase == HbTextCaseLower) { + if (mappedKey && mappedKey->characters(HbModifierNone).size() > 0) { + newChar = mappedKey->characters(HbModifierNone).at(0); + } else { + newChar = buttonId; + } + } else { + if (mappedKey && mappedKey->characters(HbModifierShiftPressed).size() > 0) { + newChar = mappedKey->characters(HbModifierShiftPressed).at(0); + } else { + newChar = buttonId; + } + } + } + + if (!mPrevDeadKey.isNull()) { + if (event->key() != Qt::Key_Shift && event->key() != Qt::Key_Alt) { + mKeymap->combineCharacter(mPrevDeadKey, newChar, firstChar, secondChar ); + mPrevDeadKey = 0; + if (firstChar.isNull() && secondChar.isNull()) { + return true; + } + } + } else { + if (mKeymap->isDeadKey(newChar.unicode())) { + mPrevDeadKey = newChar.unicode(); + return true; + } else { + firstChar = newChar; + } + } + + bool ret = false; + switch(buttonId) { + case Qt::Key_Alt: + if (mFnState == HbFnOff) { + mFnState = HbFnNext; + } else if (mFnState == HbFnNext) { + mFnState = HbFnOn; + } else { + mFnState = HbFnOff; + } + ret = true; + break; + case Qt::Key_Shift: { + HbTextCase currentTextCase = focusObject->editorInterface().textCase(); + HbInputLanguage language = mInputMethod->inputState().language(); + + // Update the Case Information in HbInputState, it internally updates in HbEditorInterface as well + switch(currentTextCase) { + case HbTextCaseLower: + // For Case-insensitive languages, Shift Key is used to switch between character sets (i.e lower case characters and shifted characters) + if(!language.isCaseSensitiveLanguage()){ + currentTextCase = HbTextCaseUpper; + } + else { + currentTextCase = HbTextCaseAutomatic; + } + break; + case HbTextCaseUpper: + currentTextCase = HbTextCaseLower; + break; + case HbTextCaseAutomatic: + currentTextCase = HbTextCaseUpper; + break; + default: + break; + } + HbInputState state = mInputMethod->inputState(); + state.setTextCase(currentTextCase); + mInputMethod->activateState(state); + ret = true; + } + break; + case Qt::Key_Control: // Ctrl/Chr + mInputMethod->switchSpecialCharacterTable(); + ret = true; + break; + default: + + // let's pass non deadkey event to the base class. + if (!mKeymap->isDeadKey(firstChar.unicode()) && secondChar.isNull() && q->HbInputBasicHandler::filterEvent(event)) { + return true; + } + + if (event->key() == Qt::Key_Delete || event->key() == Qt::Key_Backspace) { + return false; + } + + QList list; + QString newText; + // If function key is pressed, get the functionized + // character and commit. + + if (mFnState == HbFnNext) { + if (!mappedKey->characters(HbModifierFnPressed).isEmpty() && focusObject && focusObject->characterAllowedInEditor(mappedKey->characters(HbModifierFnPressed).at(0))) { + QInputMethodEvent event(QString(), list); + event.setCommitString(QString(mappedKey->characters(HbModifierFnPressed).at(0))); + focusObject->sendEvent(event); + } + mFnState = HbFnOff; + return true; + } + + if (!firstChar.isNull()){ + q->commitAndUpdate(firstChar); + if (!secondChar.isNull() ) { + if (!q->HbInputBasicHandler::filterEvent(event)) { + q->commitAndUpdate(secondChar); + } + } + + // Need to refresh the autocompletion list + refreshAutoCompleter(); + ret = true; + } + + break; + } + return ret; +} + +void HbInputBasicQwertyHandlerPrivate::_q_timeout() +{ + mTimer->stop(); + + //If long key press of shift key is received, just return + if (mButton == Qt::Key_Shift) { + return; + } else if (mButton == Qt::Key_Control) { + mInputMethod->selectSpecialCharacterTableMode(); + } + QStringList spellList; + //If long key press of shift key, space key and enter key is received, don't + if (mButton) { + mInputMethod->launchCharacterPreviewPane(mButton); + } + + return; +} + +HbInputBasicQwertyHandler::HbInputBasicQwertyHandler(HbInputAbstractMethod* inputMethod) +:HbInputBasicHandler(* new HbInputBasicQwertyHandlerPrivate, inputMethod) +{ + Q_D(HbInputBasicQwertyHandler); + d->q_ptr = this; + d->init(); +} + + +/*! +This function lists different input modes. +*/ +void HbInputBasicQwertyHandler::listInputModes(QVector& modes) const +{ + HbInputModeProperties binding; + binding.iMode = HbInputModeDefault; + binding.iKeyboard = HbKeyboardVirtualQwerty; + + QList languages = HbKeymapFactory::availableLanguages(); + foreach (HbInputLanguage language, languages) { + binding.iLanguage = language; + modes.push_back(binding); + } +} + +HbInputBasicQwertyHandler::~HbInputBasicQwertyHandler() +{ +} + +/*! +filterEvent function key handling. +*/ +bool HbInputBasicQwertyHandler::filterEvent(const QKeyEvent* event) +{ + Q_D(HbInputBasicQwertyHandler); + + if (event->type() == QEvent::KeyRelease) { + return d->buttonReleased(event); + } else { + return d->buttonPressed(event); + } +} + +/*! +returns true if in inline edit. +*/ +bool HbInputBasicQwertyHandler::isComposing() const +{ + Q_D(const HbInputBasicQwertyHandler); + return d->mTimer->isActive(); +} + +/*! +Action handler +*/ +bool HbInputBasicQwertyHandler::actionHandler(HbInputModeAction action) +{ + Q_D(HbInputBasicQwertyHandler); + HbInputFocusObject *focusObject = 0; + focusObject = d->mInputMethod->focusObject(); + bool ret = true; + switch (action) { + case HbInputModeActionCancelButtonPress: + case HbInputModeActionReset: + if (d->mTimer->isActive()) { + d->mTimer->stop(); + } + break; + case HbInputModeActionFocusRecieved: + if (d->mTimer->isActive()) { + d->mTimer->stop(); + } + // set up auto completer + setUpAutoCompleter(); + break; + case HbInputModeActionFocusLost: + // We should add the commit autocompleting text when focus lost happens + if (d->mTimer->isActive()) { + d->mTimer->stop(); + } + if (d->mCurrentlyFocused != focusObject) { + d->mCurrentlyFocused = focusObject; + addWordInAutoCompleter(); + } + break; + default: { + ret = HbInputBasicHandler::actionHandler(action); + } + } + return ret; +} + +/*! +this SLOT is called by input plugin when there is a character selected from character preview pane. +*/ +void HbInputBasicQwertyHandler::charFromPreviewSelected(QString characters) +{ + Q_D(HbInputBasicQwertyHandler); + if(characters.size() > 0) { + sctCharacterSelected(characters.at(0)); + d->mInputMethod->updateState(); + } +} + +void HbInputBasicQwertyHandler::sctCharacterSelected(QString character) +{ + HbInputModeHandler::sctCharacterSelected(character); +} + +void HbInputBasicQwertyHandler::characterPreviewAvailable(bool available) +{ + Q_D(HbInputBasicQwertyHandler); + d->mPreviewAvailable = available; +}