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/* * This file is part of Maliit framework *
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* Contact: maliit-discuss@lists.maliit.org
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* and appearing in the file LICENSE.LGPL included in the packaging
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#ifndef MINPUTCONTEXT_H
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#define MINPUTCONTEXT_H
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#include <maliit/namespace.h>
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#include <maliit/preeditinjectionevent.h>
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#include <QInputContext>
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class MImServerConnection;
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* \brief On the application side, MInputContext implements input method
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* support for the Meegotouch input method server.
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* The base class QInputContext abstracts input method specific composing of
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* input. It acts in between the input method and the widget receiving the
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* composed input. MInputContext extends this functionality by connecting to
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* Meegotouch input method server and accepting input it creates. This input
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* is forwarded to the currently focused widget. MInputContext also notifies
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* the Meegotouch input method server about the current state of input widgets
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* on the application side.
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class MInputContext : public QInputContext
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friend class Ut_MInputContext;
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//! \brief Constructor
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explicit MInputContext(QSharedPointer<MImServerConnection> imServer, const QString &name, QObject *parent = 0);
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virtual ~MInputContext();
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virtual bool event(QEvent *event);
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virtual QString identifierName();
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virtual bool isComposing() const;
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virtual QString language();
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virtual void update();
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virtual void mouseHandler(int x, QMouseEvent *event);
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virtual void setFocusWidget(QWidget *w); // note: qt marks this as internal
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virtual bool filterEvent(const QEvent *event);
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virtual bool x11FilterEvent(QWidget *widget, XEvent *event);
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/* Hooked up to the input method server.
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* See MImServerConnection for documentation. */
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void activationLostEvent();
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void imInitiatedHide();
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void commitString(const QString &string, int replacementStart = 0,
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int replacementLength = 0, int cursorPos = -1);
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void updatePreedit(const QString &string, const QList<Maliit::PreeditTextFormat> &preeditFormats,
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int replacementStart = 0, int replacementLength = 0, int cursorPos = -1);
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void keyEvent(int type, int key, int modifiers, const QString &text, bool autoRepeat,
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int count, Maliit::EventRequestType requestType
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= Maliit::EventRequestBoth);
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void updateInputMethodArea(const QRect &rect);
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void setGlobalCorrectionEnabled(bool);
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void getPreeditRectangle(QRect &rectangle, bool &valid) const;
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Q_SLOT void onInvokeAction(const QString &action, const QKeySequence &sequence);
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void setRedirectKeys(bool enabled);
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void setDetectableAutoRepeat(bool enabled);
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void setSelection(int start, int length);
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void getSelection(QString &selection, bool &valid) const;
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void setLanguage(const QString &language);
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/* End input method server connection slots. */
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* \brief Emitted when input method area is changed
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* \param region new input method area
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void inputMethodAreaChanged(const QRect ®ion);
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//! hides input method
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void hideInputMethod();
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void onDBusDisconnection();
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void onDBusConnection();
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* \brief Notifies input method server of copy availability.
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* \param copyAvailable bool Specifies wheter copy is available
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void handleCopyAvailabilityChange(bool copyAvailable);
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* \brief Notifies input method server when the QML TextInput element has selected text changes
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void handleSelectedTextChange();
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* \brief Notifies input method server when the QLineEdit object's selection changed
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void handleSelectionChanged();
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//! Notify input method plugin about the application's active window prepare to change to a new \a orientation angle.
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void notifyOrientationAboutToChange(Maliit::OrientationAngle orientation);
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//! Notify input method plugin about new \a orientation angle of application's active window.
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//! \note this method is called when the orientation change is finished
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void notifyOrientationChanged(Maliit::OrientationAngle orientation);
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//! Checks whether there is someting to paste in the clipboard and notifies input method plugin about it.
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void handleClipboardDataChange();
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Q_DISABLE_COPY(MInputContext)
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enum InputPanelState {
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InputPanelShowPending, // input panel showing requested, but activation pending
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InputPanelShown, // panel showing
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InputPanelHidden // panel hidden
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void updatePreeditInternally(const QString &string,
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const QList<Maliit::PreeditTextFormat> &preeditFormats,
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int replacementStart = 0, int replacementLength = 0, int cursorPos = -1);
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/* Hook up signals on the imServer to our slots. Used in constructor. */
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void connectInputMethodServer();
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/* Hook up signals and slots on the input method extension instance,
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* (MInputMethodState and Maliit::InputMethod). Used in constructor. */
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void connectInputMethodExtension();
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void notifyCopyPasteState();
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//! returns content type corresponding to specified hints
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Maliit::TextContentType contentType(Qt::InputMethodHints hints) const;
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//! returns the D-Bus object path for this instance
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QString dbusObjectPath() const;
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//! returns state for currently focused widget, key is attribute name.
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QMap<QString, QVariant> getStateInformation() const;
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//! finds focus scope item for item
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static QGraphicsItem *findFocusScopeItem(QGraphicsItem *item);
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bool isVisible(const QRect &rect, const QGraphicsView *view, const QGraphicsItem *item) const;
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bool handlePreeditInjectionEvent(const Maliit::PreeditInjectionEvent *event);
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//! Gets cursor start position, relative to widget surrounding text.
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//! Parameter valid set to false on failure.
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int cursorStartPosition(bool *valid);
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bool active; // is connection active
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InputPanelState inputPanelState; // state for the input method server's software input panel
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/*! Timer for hiding the current Software Input Panel.
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* This is mainly for switching directly between widgets
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* that has input method enabled.
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* The delayed hiding is handled in input-context because
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* this has to work also with plain qt apps.
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QSharedPointer<MImServerConnection> imServer;
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bool correctionEnabled;
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int preeditCursorPos;
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QPointer<QObject> connectedObject;
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//! redirect all hw key events to the input method or not
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const QString objectPath; //!< D-Bus object path for this instance.
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static int connectionCount; //!< Counter to allow multiple IC objects being registered via D-Bus
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unsigned long currentKeyEventTime;
added
removed
input-context/maliit-input-context/minputcontext.h
