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/* * This file is part of Maliit framework *
*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
*
*
* This library is free software; you can redistribute it and/or
* modify it 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.
*/
#ifndef MINPUTCONTEXT_H
#define MINPUTCONTEXT_H
#include <maliit/namespace.h>
#include "dbusserverconnection.h"
#include <QObject>
#include <QTimer>
#include <QPointer>
#include <QRect>
#include <qpa/qplatforminputcontext.h>
class MImServerConnection;
class MInputContext : public QPlatformInputContext
{
Q_OBJECT
// Exposing preedit state as an extension. Use only if you know what you're doing.
Q_PROPERTY(QString preedit READ preeditString NOTIFY preeditChanged)
public:
enum OrientationAngle {
Angle0 = 0,
Angle90 = 90,
Angle180 = 180,
Angle270 = 270
};
MInputContext();
virtual ~MInputContext();
// reimplemented methods
virtual bool isValid() const;
virtual void reset();
virtual void commit();
virtual void update(Qt::InputMethodQueries);
virtual void invokeAction(QInputMethod::Action, int cursorPosition);
virtual bool filterEvent(const QEvent *event);
virtual QRectF keyboardRect() const;
virtual bool isAnimating() const;
virtual void showInputPanel();
virtual void hideInputPanel();
virtual bool isInputPanelVisible() const;
virtual QLocale locale() const;
virtual Qt::LayoutDirection inputDirection() const;
virtual void setFocusObject(QObject *object);
QString preeditString();
public Q_SLOTS:
// Hooked up to the input method server
void activationLostEvent();
void imInitiatedHide();
void commitString(const QString &string, int replacementStart = 0,
int replacementLength = 0, int cursorPos = -1);
void updatePreedit(const QString &string, const QList<Maliit::PreeditTextFormat> &preeditFormats,
int replacementStart = 0, int replacementLength = 0, int cursorPos = -1);
void keyEvent(int type, int key, int modifiers, const QString &text, bool autoRepeat,
int count, Maliit::EventRequestType requestType = Maliit::EventRequestBoth);
void updateInputMethodArea(const QRect &rect);
void setGlobalCorrectionEnabled(bool);
void getPreeditRectangle(QRect &rectangle, bool &valid) const;
void onInvokeAction(const QString &action, const QKeySequence &sequence);
void setRedirectKeys(bool enabled);
void setDetectableAutoRepeat(bool enabled);
void setSelection(int start, int length);
void getSelection(QString &selection, bool &valid) const;
void setLanguage(const QString &language);
// End input method server connection slots.
private Q_SLOTS:
void sendHideInputMethod();
void updateServerOrientation(Qt::ScreenOrientation orientation);
void onDBusDisconnection();
void onDBusConnection();
// Notify input method plugin about the application's active window prepare to change to a new orientation angle.
void notifyOrientationAboutToChange(MInputContext::OrientationAngle orientation);
// Notify input method plugin about new \a orientation angle of application's active window.
// note: this method is called when the orientation change is finished
void notifyOrientationChanged(MInputContext::OrientationAngle orientation);
Q_SIGNALS:
void preeditChanged();
private:
Q_DISABLE_COPY(MInputContext)
enum InputPanelState {
InputPanelShowPending, // input panel showing requested, but activation pending
InputPanelShown,
InputPanelHidden
};
void updatePreeditInternally(const QString &string, const QList<Maliit::PreeditTextFormat> &preeditFormats,
int replacementStart = 0, int replacementLength = 0, int cursorPos = -1);
void connectInputMethodServer();
void updateInputMethodExtensions();
// returns content type corresponding to specified hints
Maliit::TextContentType contentType(Qt::InputMethodHints hints) const;
// returns state for currently focused widget, key is attribute name.
QMap<QString, QVariant> getStateInformation() const;
// Gets cursor start position, relative to widget surrounding text.
// Parameter valid set to false on failure.
int cursorStartPosition(bool *valid);
DBusServerConnection *imServer;
bool active; // is connection active
QPointer<QWindow> window;
QRect keyboardRectangle;
InputPanelState inputPanelState; // state for the input method server's software input panel
/* Timer for hiding the current Software Input Panel.
* This is mainly for switching directly between widgets that have input method enabled. */
QTimer sipHideTimer;
QString preedit;
int preeditCursorPos;
bool redirectKeys; // redirect all hw key events to the input method or not
QLocale inputLocale;
bool currentFocusAcceptsInput;
QPlatformInputContext *composeInputContext;
};
#endif
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