src/hbplugins/inputmethods/common/hbinputbasichandler.cpp
changeset 0 16d8024aca5e
child 2 06ff229162e9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbplugins/inputmethods/common/hbinputbasichandler.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,269 @@
+/****************************************************************************
+**
+** 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 <hbinputkeymap.h>
+#include <hbinputpredictionfactory.h>
+
+#include "hbinputbasichandler_p.h"
+#include "hbinputpredictionengine.h"
+#include "hbinputabstractbase.h"
+
+HbInputBasicHandlerPrivate::HbInputBasicHandlerPrivate()
+:mAutoCompleter(0)
+{
+}
+
+HbInputBasicHandlerPrivate::~HbInputBasicHandlerPrivate()
+{
+}
+
+void HbInputBasicHandlerPrivate::init()
+{
+}
+
+void HbInputBasicHandlerPrivate::setUpAutoCompleter()
+{
+    HbInputFocusObject *focusObject = 0;
+    focusObject = mInputMethod->focusObject();
+    if (!focusObject) {
+        return;
+    }
+    // Check if this is auto completion field and set it up if it is.
+    if (focusObject->editorInterface().constraints() & HbEditorConstraintAutoCompletingField) {
+        if (!mAutoCompleter) {
+            mAutoCompleter = HbPredictionFactory::instance()->createEngine(HbAutoCompleteVendorIdString);
+        }
+
+        mInputMethod->closeAutoCompletionPopup();
+
+        if (mAutoCompleter) {
+            mAutoCompleter->setExtraUserDictionary(mInputMethod->focusObject()->editorInterface().extraDictionaryId());
+        }
+    }
+}
+
+void HbInputBasicHandlerPrivate::refreshAutoCompleter()
+{
+    HbInputFocusObject *focusObject = 0;
+    focusObject = mInputMethod->focusObject();
+
+    if (!focusObject) {
+        return;
+    }
+
+    if (focusObject->editorInterface().constraints() & HbEditorConstraintAutoCompletingField &&
+        mAutoCompleter) {
+        mAutoCompleter->setWord(focusObject->editorSurroundingText());
+        mInputMethod->launchAutoCompletionPopup(mAutoCompleter->candidateList());
+    }
+}
+
+void HbInputBasicHandlerPrivate::deleteCharacterInAutoCompleter()
+{
+     refreshAutoCompleter();
+}
+
+void HbInputBasicHandlerPrivate::addWordInAutoCompleter()
+{
+    if (mAutoCompleter) {
+        mAutoCompleter->commit();
+    }
+}
+
+void HbInputBasicHandlerPrivate::autoCompletionPopupClosed(QString currentCandidate, int closingKey)
+{
+    Q_UNUSED(closingKey);
+    Q_Q(HbInputBasicHandler);
+
+    HbInputFocusObject *focusObject = 0;
+    focusObject = mInputMethod->focusObject();
+    if (!focusObject) {
+        return;
+    }
+
+    if (focusObject->editorInterface().constraints() & HbEditorConstraintAutoCompletingField) {
+        if (mAutoCompleter) {
+            int inputLength = mAutoCompleter->inputLength();
+
+            mAutoCompleter->clear();
+            QString current = currentCandidate;
+            q->commitAndUpdate(current, -inputLength, inputLength);
+            mAutoCompleter->addUsedWord(current);
+        }
+    }
+}
+
+
+HbInputBasicHandler::HbInputBasicHandler(HbInputAbstractMethod* inputMethod)
+:HbInputModeHandler(*new HbInputBasicHandlerPrivate(), inputMethod)
+{
+    Q_D(HbInputBasicHandler);
+    d->q_ptr = this;
+    d->init();
+}
+
+HbInputBasicHandler::HbInputBasicHandler(HbInputBasicHandlerPrivate &dd, HbInputAbstractMethod* inputMethod)
+:HbInputModeHandler(dd, inputMethod)
+{
+    Q_D(HbInputBasicHandler);
+    d->q_ptr = this;
+    d->init();
+}
+
+
+HbInputBasicHandler::~HbInputBasicHandler()
+{
+}
+
+/*!
+    This function handles different keyevents.
+*/
+bool HbInputBasicHandler::filterEvent(const QKeyEvent *event)
+{
+    Q_D(HbInputBasicHandler);
+    HbInputFocusObject *focusObject = 0;
+    focusObject = d->mInputMethod->focusObject();
+    if (!focusObject) {
+        qDebug("HbInputBasicHandler::filterEvent no focusObject ... failed!!");
+        return false;
+    }
+
+    bool ret = true;
+    switch (event->key()) {
+    case Qt::Key_Backspace:
+    case Qt::Key_Delete: {
+        QKeyEvent keyEvent(QEvent::KeyPress, Qt::Key_Backspace, Qt::NoModifier);
+        sendAndUpdate(keyEvent);
+        // pass event to auto completer.
+        deleteCharacterInAutoCompleter();
+        // return false since the event is sent forward
+        ret = false;
+        break;
+    }
+    case Qt::Key_Return:
+    case Qt::Key_Enter:
+    case Qt::Key_Space: {
+        QChar qc(event->key());
+        if (qc == Qt::Key_Enter || qc == Qt::Key_Return) {
+            qc = QChar('\n');  // Editor expects normal line feed.
+        }
+        commitAndUpdate(qc);
+        }
+        break;
+    case Qt::Key_Period:
+    case Qt::Key_Comma: {
+        QString qc(event->key());
+        HbModifier modifier = HbModifierNone;
+        int currentTextCase = focusObject->editorInterface().textCase();
+        if ( HbTextCaseUpper == currentTextCase || HbTextCaseAutomatic == currentTextCase ) {
+            modifier = HbModifierShiftPressed;
+        }
+        // If shift is pressed, the shifted characters should
+        // be input.
+        const HbMappedKey* mappedKey = d->mKeymap->keyForKeycode(d->mInputMethod->inputState().keyboard(), event->key());
+        if (mappedKey) {
+            qc = mappedKey->characters(modifier).left(1);
+        }
+        commitAndUpdate(qc);
+        break;
+    }
+    default:
+        ret = HbInputModeHandler::filterEvent(event);
+        break;
+    }
+    return ret;
+}
+
+/*!
+ Action Handler for latin basic.
+*/
+bool HbInputBasicHandler::actionHandler(HbInputModeAction action)
+{
+    return HbInputModeHandler::actionHandler(action);
+}
+
+/*!
+Commits the candidate upon closing of the candidate list. Now can the closing key be anything other than
+just selection. Need to evaluate this. When the candidate list is visible, the current implementation of the
+candidate list does not allow the virtual keypad to be clicked.
+*/
+void HbInputBasicHandler::autoCompletionPopupClosed(QString currentCandidate, int closingKey)
+{
+    Q_D(HbInputBasicHandler);
+    d->autoCompletionPopupClosed(currentCandidate, closingKey);
+}
+
+/*!
+ Sets up autocompleter
+*/
+void HbInputBasicHandler::setUpAutoCompleter()
+{
+    Q_D(HbInputBasicHandler);
+    d->setUpAutoCompleter();
+}
+
+/*!
+ Appends a character in to the autocompleter engine and shows the popup with the updated list.
+*/
+void HbInputBasicHandler::refreshAutoCompleter()
+{
+    Q_D(HbInputBasicHandler);
+    d->refreshAutoCompleter();
+}
+
+/*!
+ Deletes a character and shows the popup with the new list.
+*/
+void HbInputBasicHandler::deleteCharacterInAutoCompleter()
+{
+    Q_D(HbInputBasicHandler);
+    d->deleteCharacterInAutoCompleter();
+}
+
+/*!
+ Adds a word to the autocompleter engine.
+*/
+void HbInputBasicHandler::addWordInAutoCompleter()
+{
+    Q_D(HbInputBasicHandler);
+    d->addWordInAutoCompleter();
+}
+
+/*!
+Call-back implementation to indicate that a character was selected from the SCT. With this, the character is committed to the
+editor and editor is again made to focus.
+*/
+void HbInputBasicHandler::sctCharacterSelected(QString character)
+{       
+    HbInputModeHandler::sctCharacterSelected(character);
+    refreshAutoCompleter();
+}
+
+void HbInputBasicHandler::smileySelected(QString character)
+{       
+    HbInputModeHandler::smileySelected(character);
+    refreshAutoCompleter();
+}
+//EOF