QBBInputContext Class Reference

#include <qbbinputcontext_imf.h>

Inheritance diagram for QBBInputContext:

Public Functions
virtual QList< QAction * >	actions ()
	This is a preliminary interface for Qt 4. More...
virtual bool	filterEvent (const QEvent *event)
	This function can be reimplemented in a subclass to filter input events. More...
virtual bool	filterEvent (const QEvent *event)
	This function can be reimplemented in a subclass to filter input events. More...
virtual QFont	font () const
	Returns the font of the current input widget. More...
bool	handleKeyboardEvent (int flags, int sym, int mod, int scan, int cap)
bool	handleKeyboardEvent (int flags, int sym, int mod, int scan, int cap)
QString	identifierName ()
	This function must be implemented in any subclasses to return the identifier name of the input method. More...
virtual QString	identifierName ()
	This function must be implemented in any subclasses to return the identifier name of the input method. More...
bool	isComposing () const
	This function indicates whether InputMethodStart event had been sent to the current focus widget. More...
virtual bool	isComposing () const
	This function indicates whether InputMethodStart event had been sent to the current focus widget. More...
QString	language ()
	This function must be implemented in any subclasses to return a language code (e. More...
virtual QString	language ()
	This function must be implemented in any subclasses to return a language code (e. More...
virtual void	mouseHandler (int x, QMouseEvent *event)
	This function can be reimplemented in a subclass to handle mouse press, release, double-click, and move events within the preedit text. More...
	QBBInputContext (QBBAbstractVirtualKeyboard &keyboard, QObject *parent=0)
	QBBInputContext (QBBAbstractVirtualKeyboard &keyboard, QObject *parent=0)
void	reset ()
	This function can be reimplemented in a subclass to reset the state of the input method. More...
virtual void	reset ()
	This function can be reimplemented in a subclass to reset the state of the input method. More...
void	setFocusWidget (QWidget *w)
	Sets the widget that has an input focus for this input context. More...
virtual void	setFocusWidget (QWidget *widget)
	Sets the widget that has an input focus for this input context. More...
virtual void	update ()
	This virtual function is called when a state in the focus widget has changed. More...
virtual void	widgetDestroyed (QWidget *widget)
	This virtual function is called when the specified widget is destroyed. More...
	~QBBInputContext ()
	~QBBInputContext ()
Public Functions inherited from QInputContext
QWidget *	focusWidget () const
	Returns the widget that has an input focus for this input context. More...
	QInputContext (QObject *parent=0)
	Constructs an input context with the given parent. More...
void	sendEvent (const QInputMethodEvent &event)
	Sends an input method event specified by event to the current focus widget. More...
QTextFormat	standardFormat (StandardFormat s) const
	Returns a QTextFormat object that specifies the format for component s. More...
virtual bool	x11FilterEvent (QWidget *keywidget, XEvent *event)
	This function may be overridden only if input method is depending on X11 and you need raw XEvent. More...
virtual	~QInputContext ()
	Destroys the input context. More...
Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...
const QObjectList &	children () const
	Returns a list of child objects. More...
bool	connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
bool	disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0)
bool	disconnect (const QObject *receiver, const char *member=0)
void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...
void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...
QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...
virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...
template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...
template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...
template<typename T >
QList< T >	findChildren (const QRegExp &re) const
bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...
void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...
bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...
void	killTimer (int id)
	Kills the timer with timer identifier, id. More...
virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...
void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...
QString	objectName () const
QObject *	parent () const
	Returns a pointer to the parent object. More...
QVariant	property (const char *name) const
	Returns the value of the object's name property. More...
Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...
void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...
void	setObjectName (const QString &name)
void	setParent (QObject *)
	Makes the object a child of parent. More...
bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...
void	setUserData (uint id, QObjectUserData *data)
bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...
int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...
QThread *	thread () const
	Returns the thread in which the object lives. More...
QObjectUserData *	userData (uint id) const
virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Protected Functions
bool	eventFilter (QObject *obj, QEvent *event)
	Filters events if this object has been installed as an event filter for the watched object. More...
Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...
virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...
virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...
virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...
	QObject (QObjectPrivate &dd, QObject *parent=0)
int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...
int	senderSignalIndex () const
virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Private Functions
void	closeSession ()
bool	dispatchCloseSoftwareInputPanel ()
bool	dispatchFocusEvent (FocusEventId id, int hints=Qt::ImhNone)
bool	dispatchRequestSoftwareInputPanel ()
void	endComposition ()
bool	hasPhysicalKeyboard ()
bool	hasSelectedText ()
bool	hasSession ()
int32_t	onBeginBatchEdit (input_session_t *ic)
int32_t	onClearMetaKeyStates (input_session_t *ic, int32_t states)
int32_t	onCommitText (input_session_t *ic, spannable_string_t *text, int32_t new_cursor_position)
int32_t	onDeleteSurroundingText (input_session_t *ic, int32_t left_length, int32_t right_length)
int32_t	onEndBatchEdit (input_session_t *ic)
int32_t	onFinishComposingText (input_session_t *ic)
int32_t	onForceUpdate ()
int32_t	onGetCursorCapsMode (input_session_t *ic, int32_t req_modes)
int32_t	onGetCursorPosition (input_session_t *ic)
extracted_text_t *	onGetExtractedText (input_session_t *ic, extracted_text_request_t *request, int32_t flags)
spannable_string_t *	onGetSelectedText (input_session_t *ic, int32_t flags)
spannable_string_t *	onGetTextAfterCursor (input_session_t *ic, int32_t n, int32_t flags)
spannable_string_t *	onGetTextBeforeCursor (input_session_t *ic, int32_t n, int32_t flags)
int32_t	onPerformEditorAction (input_session_t *ic, int32_t editor_action)
int32_t	onReportFullscreenMode (input_session_t *ic, int32_t enabled)
int32_t	onSendAsyncEvent (input_session_t *ic, event_t *event)
int32_t	onSendEvent (input_session_t *ic, event_t *event)
int32_t	onSetComposingRegion (input_session_t *ic, int32_t start, int32_t end)
int32_t	onSetComposingText (input_session_t *ic, spannable_string_t *text, int32_t new_cursor_position)
int32_t	onSetSelection (input_session_t *ic, int32_t start, int32_t end)
void	openSession ()
int32_t	processEvent (event_t *event)
void	setComposingText (QString const &composingText)

Properties
QString	mComposingText
bool	mIsComposing
int	mLastCaretPos
QBBAbstractVirtualKeyboard &	mVirtualKeyboard

Additional Inherited Members
Public Types inherited from QInputContext
enum	StandardFormat { PreeditFormat, SelectionFormat }
Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...
Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...
Static Public Functions inherited from QObject
static bool	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...
static bool	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
static bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
	Disconnects signal in object sender from method in object receiver. More...
static bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
static uint	registerUserData ()
static QString	tr (const char *sourceText, const char *comment=0, int n=-1)
static QString	trUtf8 (const char *sourceText, const char *comment=0, int n=-1)
Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...
Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr
Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject
Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()
QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()
QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()
T *	qobject_cast (QObject *object)
	QObjectList
void *	qt_find_obj_child (QObject *parent, const char *type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 55 of file qbbinputcontext_imf.h.

Constructors and Destructors

QBBInputContext() [1/2]

QBBInputContext::QBBInputContext ( QBBAbstractVirtualKeyboard &  keyboard, QObject *  parent = 0  )

explicit

Definition at line 683 of file qbbinputcontext_imf.cpp.

                                                                                     :
         QInputContext(parent),
         mLastCaretPos(0),
         mIsComposing(false),
         mVirtualKeyboard(keyboard)
{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!imfAvailable())
        return;

   if ( p_imf_client_init() != 0 ) {
        s_imfInitFailed = true;
        qCritical("imf_client_init failed - IMF services will be unavailable");
    }

    QCoreApplication::instance()->installEventFilter(this);

    // p_vkb_init_selection_service();
}

~QBBInputContext() [1/2]

QBBInputContext::~QBBInputContext

(

)

Definition at line 706 of file qbbinputcontext_imf.cpp.

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!imfAvailable())
        return;

    QCoreApplication::instance()->removeEventFilter(this);
    p_imf_client_disconnect();
}

QBBInputContext() [2/2]

QBBInputContext::QBBInputContext ( QBBAbstractVirtualKeyboard &  keyboard, QObject *  parent = 0  )

explicit

~QBBInputContext() [2/2]

QBBInputContext::~QBBInputContext

(

)

Functions

actions()

QList< QAction * > QBBInputContext::actions ( )

virtual

This is a preliminary interface for Qt 4.

Reimplemented from QInputContext.

Definition at line 919 of file qbbinputcontext_imf.cpp.

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif
    return QInputContext::actions();
}

closeSession()

void QBBInputContext::closeSession ( )

private

Definition at line 1006 of file qbbinputcontext_imf.cpp.

Referenced by openSession(), and setFocusWidget().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;;
#endif

    if (!imfAvailable())
        return;

    if (sInputSession) {
        p_ictrl_close_session((input_session_t *)sInputSession);
        sInputSession = 0;
    }
}

dispatchCloseSoftwareInputPanel()

bool QBBInputContext::dispatchCloseSoftwareInputPanel ( )

private

Definition at line 1071 of file qbbinputcontext_imf.cpp.

Referenced by filterEvent().

{
    mVirtualKeyboard.hideKeyboard();
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << "QBB: hiding virtual keyboard";
#endif

    // This also means we are stopping composition, but we should already have done that.
    return true;
}

dispatchFocusEvent()

bool QBBInputContext::dispatchFocusEvent ( FocusEventId  id, int  hints = Qt::ImhNone  )

private

Definition at line 1085 of file qbbinputcontext_imf.cpp.

Referenced by setFocusWidget().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!sInputSession) {
        qWarning() << TAG << "Attempt to dispatch a focus event with no input session.";
        return false;
    }

    if (!imfAvailable())
        return false;

    // Set the last caret position to 0 since we don't really have one and we don't
    // want to have the old one.
    mLastCaretPos = 0;

    focus_event_t focusEvent;
    memset(&focusEvent, 0, sizeof(focusEvent));
    initEvent(&focusEvent.event, sInputSession, EVENT_FOCUS, id);
    focusEvent.style = DEFAULT_STYLE;

    if (hints && Qt::ImhNoPredictiveText)
        focusEvent.style |= NO_PREDICTION | NO_AUTO_CORRECTION;
    if (hints && Qt::ImhNoAutoUppercase)
        focusEvent.style |= NO_AUTO_TEXT;

    p_ictrl_dispatch_event((event_t *)&focusEvent);

    return true;
}

dispatchRequestSoftwareInputPanel()

bool QBBInputContext::dispatchRequestSoftwareInputPanel ( )

private

Definition at line 1050 of file qbbinputcontext_imf.cpp.

Referenced by filterEvent().

{
    mVirtualKeyboard.showKeyboard();
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << "QBB: requesting virtual keyboard";
#endif

    if (!imfAvailable() || !focusWidget())
        return true;

    // This also means that the caret position has moved
    int caretPos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();
    caret_event_t caretEvent;
    memset(&caretEvent, 0, sizeof(caret_event_t));
    initEvent(&caretEvent.event, sInputSession, EVENT_CARET, CARET_POS_CHANGED);
    caretEvent.old_pos = mLastCaretPos;
    mLastCaretPos = caretEvent.new_pos = caretPos;
    p_ictrl_dispatch_event((event_t *)&caretEvent);
    return true;
}

endComposition()

void QBBInputContext::endComposition ( )

private

Definition at line 1220 of file qbbinputcontext_imf.cpp.

Referenced by reset(), and setFocusWidget().

{
    if (!imfAvailable())
        return;

    if (!isComposing())
        return;

    QList<QInputMethodEvent::Attribute> attributes;
    QInputMethodEvent event(QLatin1String(""), attributes);
    event.setCommitString(mComposingText);
    mComposingText = QString();
    mIsComposing = false;
    sendEvent(event);

    action_event_t actionEvent;
    memset(&actionEvent, 0, sizeof(actionEvent));
    initEvent(&actionEvent.event, sInputSession, EVENT_ACTION, ACTION_END_COMPOSITION);
    p_ictrl_dispatch_event(&actionEvent.event);
}

eventFilter()

bool QBBInputContext::eventFilter ( QObject *  , QEvent *    )

protectedvirtual

Filters events if this object has been installed as an event filter for the watched object.

In your reimplementation of this function, if you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.

Example:

class MainWindow : public QMainWindow
{
public:
    MainWindow();

protected:
    bool eventFilter(QObject *obj, QEvent *ev);

private:
    QTextEdit *textEdit;
};

MainWindow::MainWindow()
{
    textEdit = new QTextEdit;
    setCentralWidget(textEdit);

    textEdit->installEventFilter(this);
}

bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
    if (obj == textEdit) {
        if (event->type() == QEvent::KeyPress) {
            QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
            qDebug() << "Ate key press" << keyEvent->key();
            return true;
        } else {
            return false;
        }
    } else {
        // pass the event on to the parent class
        return QMainWindow::eventFilter(obj, event);
    }
}

Notice in the example above that unhandled events are passed to the base class's eventFilter() function, since the base class might have reimplemented eventFilter() for its own internal purposes.

Warning

If you delete the receiver object in this function, be sure to return true. Otherwise, Qt will forward the event to the deleted object and the program might crash.

See also

installEventFilter()

Reimplemented from QObject.

Definition at line 722 of file qbbinputcontext_imf.cpp.

{

    if (event->type() == ImfEvent::sUserEventType) {
        // Forward the event to our real handler.
        ImfEvent* imfEvent = static_cast<ImfEvent*>(event);
        switch (imfEvent->mImfType) {
        case ImfBeginBatchEdit:
        {
            int32_t ret = onBeginBatchEdit(imfEvent->mSession);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfClearMetaKeyStates:
        {
            getarg(int32_t, states);
            int32_t ret = onClearMetaKeyStates(imfEvent->mSession, states);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfCommitText:
        {
            getparg(spannable_string_t*, text);
            getarg(int32_t, new_cursor_position);
            int32_t ret = onCommitText(imfEvent->mSession, text, new_cursor_position);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfDeleteSurroundingText:
        {
            getarg(int32_t, left_length);
            getarg(int32_t, right_length);
            int32_t ret = onDeleteSurroundingText(imfEvent->mSession, left_length, right_length);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfEndBatchEdit:
        {
            int32_t ret = onEndBatchEdit(imfEvent->mSession);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfFinishComposingText:
        {
            int32_t ret = onFinishComposingText(imfEvent->mSession);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfGetCursorCapsMode:
        {
            getarg(int32_t, req_modes);
            int32_t ret = onGetCursorCapsMode(imfEvent->mSession, req_modes);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfGetCursorPosition:
        {
            int32_t ret = onGetCursorPosition(imfEvent->mSession);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfGetExtractedText:
        {
            getparg(extracted_text_request_t*, request);
            getarg(int32_t, flags);
            extracted_text_t* ret = onGetExtractedText(imfEvent->mSession, request, flags);
            imfEvent->mResult->setResult(QVariant::fromValue((void*)ret));
            break;
        }

        case ImfGetSelectedText:
        {
            getarg(int32_t, flags);
            spannable_string_t* ret = onGetSelectedText(imfEvent->mSession, flags);
            imfEvent->mResult->setResult(QVariant::fromValue((void*)ret));
            break;
        }

        case ImfGetTextAfterCursor:
        {
            getarg(int32_t, n);
            getarg(int32_t, flags);
            spannable_string_t* ret = onGetTextAfterCursor(imfEvent->mSession, n, flags);
            imfEvent->mResult->setResult(QVariant::fromValue((void*)ret));
            break;
        }

        case ImfGetTextBeforeCursor:
        {
            getarg(int32_t, n);
            getarg(int32_t, flags);
            spannable_string_t* ret = onGetTextBeforeCursor(imfEvent->mSession, n, flags);
            imfEvent->mResult->setResult(QVariant::fromValue((void*)ret));
            break;
        }

        case ImfPerformEditorAction:
        {
            getarg(int32_t, editor_action);
            int32_t ret = onPerformEditorAction(imfEvent->mSession, editor_action);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfReportFullscreenMode:
        {
            getarg(int32_t, enabled);
            int32_t ret = onReportFullscreenMode(imfEvent->mSession, enabled);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfSendEvent:
        {
            getparg(event_t*, event);
            onSendEvent(imfEvent->mSession, event);
            break;
        }

        case ImfSendAsyncEvent:
        {
            getparg(event_t*, event);
            onSendAsyncEvent(imfEvent->mSession, event);
            break;
        }

        case ImfSetComposingRegion:
        {
            getarg(int32_t, start);
            getarg(int32_t, end);
            int32_t ret = onSetComposingRegion(imfEvent->mSession, start, end);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfSetComposingText:
        {
            getparg(spannable_string_t*, text);
            getarg(int32_t, new_cursor_position);
            int32_t ret = onSetComposingText(imfEvent->mSession, text, new_cursor_position);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }

        case ImfSetSelection:
        {
            getarg(int32_t, start);
            getarg(int32_t, end);
            int32_t ret = onSetSelection(imfEvent->mSession, start, end);
            imfEvent->mResult->setResult(QVariant::fromValue(ret));
            break;
        }
        }; //switch

        return true;
    } else {
        // standard event processing
        return QObject::eventFilter(obj, event);
    }
}

filterEvent() [1/2]

bool QBBInputContext::filterEvent ( const QEvent *  event )

virtual

This function can be reimplemented in a subclass to filter input events.

Return true if the event has been consumed. Otherwise, the unfiltered event will be forwarded to widgets as ordinary way. Although the input events have accept() and ignore() methods, leave it untouched.

event is currently restricted to events of these types:

• CloseSoftwareInputPanel
• KeyPress
• KeyRelease
• MouseButtonDblClick
• MouseButtonPress
• MouseButtonRelease
• MouseMove
• RequestSoftwareInputPanel

But some input method related events such as QWheelEvent or QTabletEvent may be added in future.

The filtering opportunity is always given to the input context as soon as possible. It has to be taken place before any other key event consumers such as eventfilters and accelerators because some input methods require quite various key combination and sequences. It often conflicts with accelerators and so on, so we must give the input context the filtering opportunity first to ensure all input methods work properly regardless of application design.

Ordinary input methods require discrete key events to work properly, so Qt's key compression is always disabled for any input contexts.

See also

QKeyEvent, x11FilterEvent()

Reimplemented from QInputContext.

Definition at line 901 of file qbbinputcontext_imf.cpp.

Referenced by hasPhysicalKeyboard(), and isComposing().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG << event;
#endif

    switch (event->type()) {
    case QEvent::CloseSoftwareInputPanel: {
        return dispatchCloseSoftwareInputPanel();
    }
    case QEvent::RequestSoftwareInputPanel: {
        return dispatchRequestSoftwareInputPanel();
    }
    default:
        return false;
    }
}

filterEvent() [2/2]

virtual bool QBBInputContext::filterEvent ( const QEvent *  event )

virtual

This function can be reimplemented in a subclass to filter input events.

Return true if the event has been consumed. Otherwise, the unfiltered event will be forwarded to widgets as ordinary way. Although the input events have accept() and ignore() methods, leave it untouched.

event is currently restricted to events of these types:

• CloseSoftwareInputPanel
• KeyPress
• KeyRelease
• MouseButtonDblClick
• MouseButtonPress
• MouseButtonRelease
• MouseMove
• RequestSoftwareInputPanel

But some input method related events such as QWheelEvent or QTabletEvent may be added in future.

The filtering opportunity is always given to the input context as soon as possible. It has to be taken place before any other key event consumers such as eventfilters and accelerators because some input methods require quite various key combination and sequences. It often conflicts with accelerators and so on, so we must give the input context the filtering opportunity first to ensure all input methods work properly regardless of application design.

Ordinary input methods require discrete key events to work properly, so Qt's key compression is always disabled for any input contexts.

See also

QKeyEvent, x11FilterEvent()

Reimplemented from QInputContext.

font()

QFont QBBInputContext::font ( ) const

virtual

Returns the font of the current input widget.

Reimplemented from QInputContext.

Definition at line 927 of file qbbinputcontext_imf.cpp.

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif
    return QInputContext::font();
}

handleKeyboardEvent() [1/2]

bool QBBInputContext::handleKeyboardEvent	(	int	flags,
		int	sym,
		int	mod,
		int	scan,
		int	cap
	)

handleKeyboardEvent() [2/2]

bool QBBInputContext::handleKeyboardEvent	(	int	flags,
		int	sym,
		int	mod,
		int	scan,
		int	cap
	)

Definition at line 1118 of file qbbinputcontext_imf.cpp.

Referenced by QBBScreenEventHandler::handleKeyboardEvent(), hasPhysicalKeyboard(), and isComposing().

{
    if (!imfAvailable())
        return false;

    int key = (flags & KEY_SYM_VALID) ? sym : cap;
    bool navKey = false;
    switch ( key ) {
    case KEYCODE_RETURN:
         /* In a single line edit we should end composition because enter might be used by something.
            endComposition();
            return false;*/
        break;

    case KEYCODE_BACKSPACE:
    case KEYCODE_DELETE:
        // If there is a selection range, then we want a delete key to operate on that (by
        // deleting the contents of the select range) rather than operating on the composition
        // range.
        if (hasSelectedText())
            return false;
        break;
    case  KEYCODE_LEFT:
        key = NAVIGATE_LEFT;
        navKey = true;
        break;
    case  KEYCODE_RIGHT:
        key = NAVIGATE_RIGHT;
        navKey = true;
        break;
    case  KEYCODE_UP:
        key = NAVIGATE_UP;
        navKey = true;
        break;
    case  KEYCODE_DOWN:
        key = NAVIGATE_DOWN;
        navKey = true;
        break;
    case  KEYCODE_CAPS_LOCK:
    case  KEYCODE_LEFT_SHIFT:
    case  KEYCODE_RIGHT_SHIFT:
    case  KEYCODE_LEFT_CTRL:
    case  KEYCODE_RIGHT_CTRL:
    case  KEYCODE_LEFT_ALT:
    case  KEYCODE_RIGHT_ALT:
    case  KEYCODE_MENU:
    case  KEYCODE_LEFT_HYPER:
    case  KEYCODE_RIGHT_HYPER:
    case  KEYCODE_INSERT:
    case  KEYCODE_HOME:
    case  KEYCODE_PG_UP:
    case  KEYCODE_END:
    case  KEYCODE_PG_DOWN:
        // Don't send these
        key = 0;
        break;
    }

    if ( mod & KEYMOD_CTRL ) {
        // If CTRL is pressed, just let AIR handle it.  But terminate any composition first
        //endComposition();
        return false;
    }

    // Pass the keys we don't know about on through
    if ( key == 0 )
        return false;

    // IMF doesn't need key releases so just swallow them.
    if (!(flags & KEY_DOWN))
        return true;

    if ( navKey ) {
        // Even if we're forwarding up events, we can't do this for
        // navigation keys.
        if ( flags & KEY_DOWN ) {
            navigation_event_t navEvent;
            initEvent(&navEvent.event, sInputSession, EVENT_NAVIGATION, key);
            navEvent.magnitude = 1;
#if defined(QBBINPUTCONTEXT_DEBUG)
            qDebug() << TAG << "dispatch navigation event " << key;
#endif
            p_ictrl_dispatch_event(&navEvent.event);
        }
    }
    else {
        key_event_t keyEvent;
        initEvent(&keyEvent.event, sInputSession, EVENT_KEY, flags & KEY_DOWN ? IMF_KEY_DOWN : IMF_KEY_UP);
        keyEvent.key_code = key;
        keyEvent.character = 0;
        keyEvent.meta_key_state = 0;

        p_ictrl_dispatch_event(&keyEvent.event);
#if defined(QBBINPUTCONTEXT_DEBUG)
        qDebug() << TAG << "dispatch key event " << key;
#endif
    }

    scan = 0;
    return true;
}

hasPhysicalKeyboard()

bool QBBInputContext::hasPhysicalKeyboard ( )

private

Definition at line 69 of file qbbinputcontext_noimf.cpp.

Referenced by isComposing().

{
    // TODO: This should query the system to check if a USB keyboard is connected.
    return false;
}

hasSelectedText()

bool QBBInputContext::hasSelectedText ( )

private

Definition at line 1039 of file qbbinputcontext_imf.cpp.

Referenced by handleKeyboardEvent(), and onDeleteSurroundingText().

{
    if (focusWidget()) {
        return focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt() != focusWidget()->inputMethodQuery(Qt::ImAnchorPosition).toInt();
    }
    else
    {
        return false;
    }
}

hasSession()

bool QBBInputContext::hasSession ( )

private

Definition at line 1034 of file qbbinputcontext_imf.cpp.

Referenced by setFocusWidget().

{
    return sInputSession != 0;
}

identifierName() [1/2]

QString QBBInputContext::identifierName ( )

inlinevirtual

This function must be implemented in any subclasses to return the identifier name of the input method.

Return value is the name to identify and specify input methods for the input method switching mechanism and so on. The name has to be consistent with QInputContextPlugin::keys(). The name has to consist of ASCII characters only.

There are two different names with different responsibility in the input method domain. This function returns one of them. Another name is called 'display name' that stands for the name for endusers appeared in a menu and so on.

See also

QInputContextPlugin::keys(), QInputContextPlugin::displayName()

Implements QInputContext.

Definition at line 57 of file qbbinputcontext_noimf.h.

{ return QString("BlackBerry IMF"); }

identifierName() [2/2]

QString QBBInputContext::identifierName ( )

virtual

This function must be implemented in any subclasses to return the identifier name of the input method.

Return value is the name to identify and specify input methods for the input method switching mechanism and so on. The name has to be consistent with QInputContextPlugin::keys(). The name has to consist of ASCII characters only.

There are two different names with different responsibility in the input method domain. This function returns one of them. Another name is called 'display name' that stands for the name for endusers appeared in a menu and so on.

See also

QInputContextPlugin::keys(), QInputContextPlugin::displayName()

Implements QInputContext.

Definition at line 891 of file qbbinputcontext_imf.cpp.

{
    return tr("PlayBook IMF");
}

isComposing() [1/2]

bool QBBInputContext::isComposing ( ) const

inlinevirtual

This function indicates whether InputMethodStart event had been sent to the current focus widget.

It is ensured that an input context can send InputMethodCompose or InputMethodEnd event safely if this function returned true.

The state is automatically being tracked through sendEvent().

See also

sendEvent()

Implements QInputContext.

Definition at line 61 of file qbbinputcontext_noimf.h.

{ return false; }

isComposing() [2/2]

bool QBBInputContext::isComposing ( ) const

virtual

This function indicates whether InputMethodStart event had been sent to the current focus widget.

It is ensured that an input context can send InputMethodCompose or InputMethodEnd event safely if this function returned true.

The state is automatically being tracked through sendEvent().

See also

sendEvent()

Implements QInputContext.

Definition at line 935 of file qbbinputcontext_imf.cpp.

Referenced by endComposition().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif
    return mIsComposing;
}

language() [1/2]

QString QBBInputContext::language ( )

virtual

This function must be implemented in any subclasses to return a language code (e.

g. "zh_CN", "zh_TW", "zh_HK", "ja", "ko", ...) of the input context. If the input context can handle multiple languages, return the currently used one. The name has to be consistent with QInputContextPlugin::language().

This information will be used by language tagging feature in QInputMethodEvent. It is required to distinguish unified han characters correctly. It enables proper font and character code handling. Suppose CJK-awared multilingual web browser (that automatically modifies fonts in CJK-mixed text) and XML editor (that automatically inserts lang attr).

Implements QInputContext.

language() [2/2]

QString QBBInputContext::language ( )

virtual

This function must be implemented in any subclasses to return a language code (e.

g. "zh_CN", "zh_TW", "zh_HK", "ja", "ko", ...) of the input context. If the input context can handle multiple languages, return the currently used one. The name has to be consistent with QInputContextPlugin::language().

This information will be used by language tagging feature in QInputMethodEvent. It is required to distinguish unified han characters correctly. It enables proper font and character code handling. Suppose CJK-awared multilingual web browser (that automatically modifies fonts in CJK-mixed text) and XML editor (that automatically inserts lang attr).

Implements QInputContext.

Definition at line 896 of file qbbinputcontext_imf.cpp.

Referenced by identifierName().

{
    return mVirtualKeyboard.languageId();
}

mouseHandler()

void QBBInputContext::mouseHandler ( int  x, QMouseEvent *  event  )

virtual

This function can be reimplemented in a subclass to handle mouse press, release, double-click, and move events within the preedit text.

You can use the function to implement mouse-oriented user interface such as text selection or popup menu for candidate selection.

The x parameter is the offset within the string that was sent with the InputMethodCompose event. The alteration boundary of x is ensured as character boundary of preedit string accurately.

The event parameter is the event that was sent to the editor widget. The event type is QEvent::MouseButtonPress, QEvent::MouseButtonRelease, QEvent::MouseButtonDblClick or QEvent::MouseMove. The event's button and state indicate the kind of operation that was performed.

Reimplemented from QInputContext.

Definition at line 943 of file qbbinputcontext_imf.cpp.

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif
    return QInputContext::mouseHandler(x, event);
}

onBeginBatchEdit()

int32_t QBBInputContext::onBeginBatchEdit ( input_session_t *  ic )

private

Definition at line 1319 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // We don't care.
    return 0;
}

onClearMetaKeyStates()

int32_t QBBInputContext::onClearMetaKeyStates ( input_session_t *  ic, int32_t  states  )

private

Definition at line 1332 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(states);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // Should never get called.
    qCritical() << TAG << "onClearMetaKeyStates is unsupported.";
    return 0;
}

onCommitText()

int32_t QBBInputContext::onCommitText ( input_session_t *  ic, spannable_string_t *  text, int32_t  new_cursor_position  )

private

Definition at line 1347 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(new_cursor_position);  // TODO: How can we set the cursor position it's not part of the API.
    if (!isSessionOkay(ic))
        return 0;

    QString commitString = QString::fromWCharArray(text->str, text->length);

#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG << "Committing [" << commitString << "]";
#endif

    QList<QInputMethodEvent::Attribute> attributes;
    QInputMethodEvent event(QLatin1String(""), attributes);
    event.setCommitString(commitString, 0, 0);

    sendEvent(event);
    mComposingText = QString();

    return 0;
}

onDeleteSurroundingText()

int32_t QBBInputContext::onDeleteSurroundingText ( input_session_t *  ic, int32_t  left_length, int32_t  right_length  )

private

Definition at line 1369 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG << "L:" << left_length << " R:" << right_length;
#endif

    if (!isSessionOkay(ic))
        return 0;

    if (hasSelectedText()) {
        QBBEventThread::injectKeyboardEvent(KEY_DOWN | KEY_CAP_VALID, KEYCODE_DELETE, 0, 0, 0);
        QBBEventThread::injectKeyboardEvent(KEY_CAP_VALID, KEYCODE_DELETE, 0, 0, 0);
        reset();
        return 0;
    }

    int replacementLength = left_length + right_length;
    int replacementStart = -left_length;

    QList<QInputMethodEvent::Attribute> attributes;
    QInputMethodEvent event(QLatin1String(""), attributes);
    event.setCommitString(QLatin1String(""), replacementStart, replacementLength);
    sendEvent(event);

    return 0;
}

onEndBatchEdit()

int32_t QBBInputContext::onEndBatchEdit ( input_session_t *  ic )

private

Definition at line 1396 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    return 0;
}

onFinishComposingText()

int32_t QBBInputContext::onFinishComposingText ( input_session_t *  ic )

private

Definition at line 1408 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // Only update the control, no need to send a message back to imf (don't call
    // end composition)
    QList<QInputMethodEvent::Attribute> attributes;
    QInputMethodEvent event(QLatin1String(""), attributes);
    event.setCommitString(mComposingText);
    mComposingText = QString();
    mIsComposing = false;
    sendEvent(event);

    return 0;
}

onForceUpdate()

int32_t QBBInputContext::onForceUpdate ( )

private

onGetCursorCapsMode()

int32_t QBBInputContext::onGetCursorCapsMode ( input_session_t *  ic, int32_t  req_modes  )

private

Definition at line 1429 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(req_modes);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // Should never get called.
    qCritical() << TAG << "onGetCursorCapsMode is unsupported.";

    return 0;
}

onGetCursorPosition()

int32_t QBBInputContext::onGetCursorPosition ( input_session_t *  ic )

private

Definition at line 1445 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    mLastCaretPos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();
    return mLastCaretPos;
}

onGetExtractedText()

extracted_text_t * QBBInputContext::onGetExtractedText ( input_session_t *  ic, extracted_text_request_t *  request, int32_t  flags  )

private

Definition at line 1458 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(flags);
    Q_UNUSED(request);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic)) {
        extracted_text_t *et = (extracted_text_t *)calloc(sizeof(extracted_text_t),1);
        et->text = (spannable_string_t *)calloc(sizeof(spannable_string_t),1);
        return 0;
    }

    // Used to update dictionaries, but not supported right now.
    extracted_text_t *et = (extracted_text_t *)calloc(sizeof(extracted_text_t),1);
    et->text = (spannable_string_t *)calloc(sizeof(spannable_string_t),1);

    return et;
}

onGetSelectedText()

spannable_string_t * QBBInputContext::onGetSelectedText ( input_session_t *  ic, int32_t  flags  )

private

Definition at line 1479 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(flags);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return toSpannableString("");

    QString text = focusWidget()->inputMethodQuery(Qt::ImCurrentSelection).toString();
    return toSpannableString(text);
}

onGetTextAfterCursor()

spannable_string_t * QBBInputContext::onGetTextAfterCursor ( input_session_t *  ic, int32_t  n, int32_t  flags  )

private

Definition at line 1493 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(flags);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return toSpannableString("");

    QString text = focusWidget()->inputMethodQuery(Qt::ImSurroundingText).toString();
    mLastCaretPos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();

    return toSpannableString(text.mid(mLastCaretPos+1, n));
}

onGetTextBeforeCursor()

spannable_string_t * QBBInputContext::onGetTextBeforeCursor ( input_session_t *  ic, int32_t  n, int32_t  flags  )

private

Definition at line 1509 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(flags);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return toSpannableString("");

    QString text = focusWidget()->inputMethodQuery(Qt::ImSurroundingText).toString();
    mLastCaretPos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();

    if (n < mLastCaretPos)
    {
        return toSpannableString(text.mid(mLastCaretPos - n, n));
    }
    else
        return toSpannableString(text.mid(0, mLastCaretPos));
}

onPerformEditorAction()

int32_t QBBInputContext::onPerformEditorAction ( input_session_t *  ic, int32_t  editor_action  )

private

Definition at line 1530 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(editor_action);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // Should never get called.
    qCritical() << TAG << "onPerformEditorAction is unsupported.";

    return 0;
}

onReportFullscreenMode()

int32_t QBBInputContext::onReportFullscreenMode ( input_session_t *  ic, int32_t  enabled  )

private

Definition at line 1546 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(enabled);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // Should never get called.
    qCritical() << TAG << "onReportFullscreenMode is unsupported.";

    return 0;
}

onSendAsyncEvent()

int32_t QBBInputContext::onSendAsyncEvent ( input_session_t *  ic, event_t *  event  )

private

Definition at line 1574 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    return processEvent(event);
}

onSendEvent()

int32_t QBBInputContext::onSendEvent ( input_session_t *  ic, event_t *  event  )

private

Definition at line 1562 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    return processEvent(event);
}

onSetComposingRegion()

int32_t QBBInputContext::onSetComposingRegion ( input_session_t *  ic, int32_t  start, int32_t  end  )

private

Definition at line 1586 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    if (!focusWidget())
    {
        qCritical() << "No focus widget!";
        return 0;
    }

    QList<QInputMethodEvent::Attribute> attributes;

    mLastCaretPos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();
    QString text = focusWidget()->inputMethodQuery(Qt::ImSurroundingText).toString();
    QString empty = QString::fromLatin1("");
    text = text.mid(start, end - start);

    // Delete the current text.
    {
        QInputMethodEvent event(empty, attributes);
        event.setCommitString(empty, start - mLastCaretPos, end - start);
        sendEvent(event);
    }

    // Move the specified text into a preedit string.
    {
        setComposingText(text);
    }

    return 0;
}

onSetComposingText()

int32_t QBBInputContext::onSetComposingText ( input_session_t *  ic, spannable_string_t *  text, int32_t  new_cursor_position  )

private

Definition at line 1623 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(new_cursor_position);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    if (!focusWidget())
    {
        qCritical() << "No focus widget!";
        return 0;
    }

    mIsComposing = true;

    QString preeditString = QString::fromWCharArray(text->str, text->length);
    setComposingText(preeditString);

    return 0;
}

onSetSelection()

int32_t QBBInputContext::onSetSelection ( input_session_t *  ic, int32_t  start, int32_t  end  )

private

Definition at line 1647 of file qbbinputcontext_imf.cpp.

Referenced by eventFilter().

{
    Q_UNUSED(start);
    Q_UNUSED(end);
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (!isSessionOkay(ic))
        return 0;

    // Should never get called.
    qCritical() << TAG << "onSetSelection is unsupported.";

    return 0;
}

openSession()

void QBBInputContext::openSession ( )

private

Definition at line 1021 of file qbbinputcontext_imf.cpp.

Referenced by setFocusWidget().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;;
#endif

    if (!imfAvailable())
        return;

    closeSession();
    sInputSession = p_ictrl_open_session(&ic_funcs);
}

processEvent()

int32_t QBBInputContext::processEvent ( event_t *  event )

private

Definition at line 1256 of file qbbinputcontext_imf.cpp.

Referenced by onSendAsyncEvent(), and onSendEvent().

{
    int32_t result = -1;
    switch (event->event_type) {
    case EVENT_SPELL_CHECK: {
        #if defined(QBBINPUTCONTEXT_DEBUG)
        qDebug() << TAG << "EVENT_SPELL_CHECK";
        #endif
        result = 0;
        break;
    }

    case EVENT_NAVIGATION: {
        #if defined(QBBINPUTCONTEXT_DEBUG)
        qDebug() << TAG << "EVENT_NAVIGATION";
        #endif

        int key = event->event_id == NAVIGATE_UP ? KEYCODE_UP :
            event->event_id == NAVIGATE_DOWN ? KEYCODE_DOWN :
            event->event_id == NAVIGATE_LEFT ? KEYCODE_LEFT :
            event->event_id == NAVIGATE_RIGHT ? KEYCODE_RIGHT : 0;

        QBBEventThread::injectKeyboardEvent(KEY_DOWN | KEY_CAP_VALID, key, 0, 0, 0);
        QBBEventThread::injectKeyboardEvent(KEY_CAP_VALID, key, 0, 0, 0);
        result = 0;
        break;
    }

    case EVENT_KEY: {
        #if defined(QBBINPUTCONTEXT_DEBUG)
        qDebug() << TAG << "EVENT_KEY";
        #endif
        key_event_t* kevent = (key_event_t*) event;

        QBBEventThread::injectKeyboardEvent(KEY_DOWN | KEY_SYM_VALID | KEY_CAP_VALID, kevent->key_code, 0, 0, kevent->key_code);
        QBBEventThread::injectKeyboardEvent(KEY_SYM_VALID | KEY_CAP_VALID, kevent->key_code, 0, 0, kevent->key_code);

        result = 0;
        break;
    }

    case EVENT_ACTION:
            // Don't care, indicates that IMF is done.
        break;

    case EVENT_CARET:
    case EVENT_NOTHING:
    case EVENT_FOCUS:
    case EVENT_USER_ACTION:
    case EVENT_STROKE:
    case EVENT_INVOKE_LATER:
        qCritical() << TAG << "Unsupported event type: " << event->event_type;
        break;
    default:
        qCritical() << TAG << "Unknown event type: " << event->event_type;
    }
    return result;
}

reset() [1/2]

void QBBInputContext::reset ( )

virtual

This function can be reimplemented in a subclass to reset the state of the input method.

This function is called by several widgets to reset input state. For example, a text widget call this function before inserting a text to make widget ready to accept a text.

Default implementation is sufficient for simple input method. You can override this function to reset external input method engines in complex input method. In the case, call QInputContext::reset() to ensure proper termination of inputting.

In a reimplementation of reset(), you must not send any QInputMethodEvent containing preedit text. You can only commit string and attributes; otherwise, you risk breaking input state consistency.

Implements QInputContext.

reset() [2/2]

void QBBInputContext::reset ( )

virtual

This function can be reimplemented in a subclass to reset the state of the input method.

This function is called by several widgets to reset input state. For example, a text widget call this function before inserting a text to make widget ready to accept a text.

Default implementation is sufficient for simple input method. You can override this function to reset external input method engines in complex input method. In the case, call QInputContext::reset() to ensure proper termination of inputting.

In a reimplementation of reset(), you must not send any QInputMethodEvent containing preedit text. You can only commit string and attributes; otherwise, you risk breaking input state consistency.

Implements QInputContext.

Definition at line 951 of file qbbinputcontext_imf.cpp.

Referenced by hasPhysicalKeyboard(), identifierName(), onDeleteSurroundingText(), and update().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    endComposition();
}

setComposingText()

void QBBInputContext::setComposingText ( QString const &  composingText )

private

Definition at line 1241 of file qbbinputcontext_imf.cpp.

Referenced by onSetComposingRegion(), and onSetComposingText().

{
    mComposingText = composingText;
    mIsComposing = true;

    QList<QInputMethodEvent::Attribute> attributes;
    QTextCharFormat format;
    format.setFontUnderline(true);
    attributes.push_back(QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat, 0, composingText.length(), format));

    QInputMethodEvent event(composingText, attributes);

    sendEvent(event);
}

setFocusWidget() [1/2]

void QBBInputContext::setFocusWidget ( QWidget *  widget )

virtual

Sets the widget that has an input focus for this input context.

Warning

Ordinary input methods must not call this function directly.

See also

focusWidget()

Reimplemented from QInputContext.

setFocusWidget() [2/2]

void QBBInputContext::setFocusWidget ( QWidget *  widget )

virtual

Sets the widget that has an input focus for this input context.

Warning

Ordinary input methods must not call this function directly.

See also

focusWidget()

Reimplemented from QInputContext.

Definition at line 960 of file qbbinputcontext_imf.cpp.

Referenced by hasPhysicalKeyboard(), and isComposing().

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    if (hasSession()) {
        endComposition();
        dispatchFocusEvent(FOCUS_LOST);
        closeSession();
    }

    // Update the widget before moving on.
    QInputContext::setFocusWidget(widget);

    // If we have hidden text, or any flags that restrict input (exclusive flags), then we just disable
    // imf for this field.
    if (widget != 0 && !(widget->inputMethodHints() & Qt::ImhHiddenText) && !(widget->inputMethodHints()  >= Qt::ImhDigitsOnly && widget->inputMethodHints() <= Qt::ImhUrlCharactersOnly))
    {
#if defined(QBBINPUTCONTEXT_DEBUG)
        qDebug() << TAG << "Starting input session for " << widget;
#endif
        openSession();
        dispatchFocusEvent(FOCUS_GAINED, widget->inputMethodHints());
    }
}

update()

void QBBInputContext::update ( void  )

virtual

This virtual function is called when a state in the focus widget has changed.

QInputContext can then use QWidget::inputMethodQuery() to query the new state of the widget.

Reimplemented from QInputContext.

Definition at line 987 of file qbbinputcontext_imf.cpp.

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif

    reset();

    QInputContext::update();
}

widgetDestroyed()

void QBBInputContext::widgetDestroyed ( QWidget *  widget )

virtual

This virtual function is called when the specified widget is destroyed.

The widget is a widget on which this input context is installed.

Reimplemented from QInputContext.

Definition at line 998 of file qbbinputcontext_imf.cpp.

{
#if defined(QBBINPUTCONTEXT_DEBUG)
    qDebug() << TAG;
#endif
    QInputContext::widgetDestroyed(widget);
}

Properties

mComposingText

QString QBBInputContext::mComposingText

private

Definition at line 116 of file qbbinputcontext_imf.h.

Referenced by endComposition(), onCommitText(), onFinishComposingText(), and setComposingText().

mIsComposing

bool QBBInputContext::mIsComposing

private

Definition at line 115 of file qbbinputcontext_imf.h.

Referenced by endComposition(), isComposing(), onFinishComposingText(), onSetComposingText(), and setComposingText().

mLastCaretPos

int QBBInputContext::mLastCaretPos

private

Definition at line 114 of file qbbinputcontext_imf.h.

Referenced by dispatchFocusEvent(), dispatchRequestSoftwareInputPanel(), onGetCursorPosition(), onGetTextAfterCursor(), onGetTextBeforeCursor(), and onSetComposingRegion().

mVirtualKeyboard

QBBAbstractVirtualKeyboard & QBBInputContext::mVirtualKeyboard

private

Definition at line 117 of file qbbinputcontext_imf.h.

Referenced by dispatchCloseSoftwareInputPanel(), dispatchRequestSoftwareInputPanel(), hasPhysicalKeyboard(), isComposing(), and language().

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The documentation for this class was generated from the following files:

• /src/plugins/platforms/blackberry/qbbinputcontext_imf.h
• /src/plugins/platforms/blackberry/qbbinputcontext_noimf.h
• /src/plugins/platforms/blackberry/qbbinputcontext_imf.cpp
• /src/plugins/platforms/blackberry/qbbinputcontext_noimf.cpp