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|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT_NO_IM
#include "qcoefepinputcontext_p.h"
#include <qapplication.h>
#include <qtextformat.h>
#include <qgraphicsview.h>
#include <qgraphicsscene.h>
#include <qgraphicswidget.h>
#include <qsymbianevent.h>
#include <qlayout.h>
#include <qdesktopwidget.h>
#include <private/qcore_symbian_p.h>
#include <fepitfr.h>
#include <hal.h>
#include <e32property.h>
#include <limits.h>
// You only find these enumerations on SDK 5 onwards, so we need to provide our own
// to remain compatible with older releases. They won't be called by pre-5.0 SDKs.
// MAknEdStateObserver::EAknCursorPositionChanged
#define QT_EAknCursorPositionChanged MAknEdStateObserver::EAknEdwinStateEvent(6)
// MAknEdStateObserver::EAknActivatePenInputRequest
#define QT_EAknActivatePenInputRequest MAknEdStateObserver::EAknEdwinStateEvent(7)
// EAknEditorFlagSelectionVisible is only valid from 3.2 onwards.
// Sym^3 AVKON FEP manager expects that this flag is used for FEP-aware editors
// that support text selection.
#define QT_EAknEditorFlagSelectionVisible 0x100000
// EAknEditorFlagEnablePartialScreen is only valid from Sym^3 onwards.
#define QT_EAknEditorFlagEnablePartialScreen 0x200000
// Properties to detect VKB status from AknFepInternalPSKeys.h
#define QT_EPSUidAknFep 0x100056de
#define QT_EAknFepTouchInputActive 0x00000004
QT_BEGIN_NAMESPACE
Q_GUI_EXPORT void qt_s60_setPartialScreenInputMode(bool enable)
{
S60->partial_keyboard = enable;
QApplication::setAttribute(Qt::AA_S60DisablePartialScreenInputMode, !S60->partial_keyboard);
QInputContext *ic = 0;
if (QApplication::focusWidget()) {
ic = QApplication::focusWidget()->inputContext();
} else if (qApp && qApp->inputContext()) {
ic = qApp->inputContext();
}
if (ic)
ic->update();
}
Q_GUI_EXPORT void qt_s60_setPartialScreenAutomaticTranslation(bool enable)
{
S60->partial_keyboardAutoTranslation = enable;
}
QCoeFepInputContext::QCoeFepInputContext(QObject *parent)
: QInputContext(parent),
m_fepState(q_check_ptr(new CAknEdwinState)), // CBase derived object needs check on new
m_lastImHints(Qt::ImhNone),
m_textCapabilities(TCoeInputCapabilities::EAllText),
m_inDestruction(false),
m_pendingInputCapabilitiesChanged(false),
m_cursorVisibility(1),
m_inlinePosition(0),
m_formatRetriever(0),
m_pointerHandler(0),
m_hasTempPreeditString(false),
m_splitViewResizeBy(0),
m_splitViewPreviousWindowStates(Qt::WindowNoState)
{
m_fepState->SetObjectProvider(this);
int defaultFlags = EAknEditorFlagDefault;
if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0) {
if (isPartialKeyboardSupported()) {
defaultFlags |= QT_EAknEditorFlagEnablePartialScreen;
}
defaultFlags |= QT_EAknEditorFlagSelectionVisible;
}
m_fepState->SetFlags(defaultFlags);
m_fepState->SetDefaultInputMode( EAknEditorTextInputMode );
m_fepState->SetPermittedInputModes( EAknEditorAllInputModes );
m_fepState->SetDefaultCase( EAknEditorTextCase );
m_fepState->SetPermittedCases( EAknEditorAllCaseModes );
m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_SPECIAL_CHARACTER_TABLE_DIALOG);
m_fepState->SetNumericKeymap(EAknEditorAlphanumericNumberModeKeymap);
}
QCoeFepInputContext::~QCoeFepInputContext()
{
m_inDestruction = true;
// This is to make sure that the FEP manager "forgets" about us,
// otherwise we may get callbacks even after we're destroyed.
// The call below is essentially equivalent to InputCapabilitiesChanged(),
// but is synchronous, rather than asynchronous.
CCoeEnv::Static()->SyncNotifyFocusObserversOfChangeInFocus();
if (m_fepState)
delete m_fepState;
}
void QCoeFepInputContext::reset()
{
Qt::InputMethodHints currentHints = Qt::ImhNone;
if (focusWidget()) {
QWidget *proxy = focusWidget()->focusProxy();
currentHints = proxy ? proxy->inputMethodHints() : focusWidget()->inputMethodHints();
}
// Store a copy of preedit text, if prediction is active and input context is reseted.
// This is to ensure that we can replace preedit string after losing focus to FEP manager's
// internal sub-windows.
if (m_cachedPreeditString.isEmpty() && !(currentHints & Qt::ImhNoPredictiveText))
m_cachedPreeditString = m_preeditString;
commitCurrentString(true);
}
void QCoeFepInputContext::ReportAknEdStateEvent(MAknEdStateObserver::EAknEdwinStateEvent aEventType)
{
QT_TRAP_THROWING(m_fepState->ReportAknEdStateEventL(aEventType));
}
void QCoeFepInputContext::update()
{
updateHints(false);
// For pre-5.0 SDKs, we don't do text updates on S60 side.
if (QSysInfo::s60Version() < QSysInfo::SV_S60_5_0) {
return;
}
// Don't be fooled (as I was) by the name of this enumeration.
// What it really does is tell the virtual keyboard UI that the text has been
// updated and it should be reflected in the internal display of the VK.
ReportAknEdStateEvent(QT_EAknCursorPositionChanged);
}
void QCoeFepInputContext::setFocusWidget(QWidget *w)
{
commitCurrentString(true);
QInputContext::setFocusWidget(w);
updateHints(true);
}
void QCoeFepInputContext::widgetDestroyed(QWidget *w)
{
m_cachedPreeditString.clear();
// Make sure that the input capabilities of whatever new widget got focused are queried.
CCoeControl *ctrl = w->effectiveWinId();
if (ctrl->IsFocused()) {
queueInputCapabilitiesChanged();
}
}
QString QCoeFepInputContext::language()
{
TLanguage lang = m_fepState->LocalLanguage();
const QByteArray localeName = qt_symbianLocaleName(lang);
if (!localeName.isEmpty()) {
return QString::fromLatin1(localeName);
} else {
return QString::fromLatin1("C");
}
}
bool QCoeFepInputContext::needsInputPanel()
{
switch (QSysInfo::s60Version()) {
case QSysInfo::SV_S60_3_1:
case QSysInfo::SV_S60_3_2:
// There are no touch phones for pre-5.0 SDKs.
return false;
#ifdef Q_CC_NOKIAX86
default:
// For emulator we assume that we need an input panel, since we can't
// separate between phone types.
return true;
#else
case QSysInfo::SV_S60_5_0: {
// For SDK == 5.0, we need phone specific detection, since the HAL API
// is no good on most phones. However, all phones at the time of writing use the
// input panel, except N97 in landscape mode, but in this mode it refuses to bring
// up the panel anyway, so we don't have to care.
return true;
}
default:
// For unknown/newer types, we try to use the HAL API.
int keyboardEnabled;
int keyboardType;
int err[2];
err[0] = HAL::Get(HAL::EKeyboard, keyboardType);
err[1] = HAL::Get(HAL::EKeyboardState, keyboardEnabled);
if (err[0] == KErrNone && err[1] == KErrNone
&& keyboardType != 0 && keyboardEnabled)
// Means that we have some sort of keyboard.
return false;
// Fall back to using the input panel.
return true;
#endif // !Q_CC_NOKIAX86
}
}
bool QCoeFepInputContext::filterEvent(const QEvent *event)
{
if (!focusWidget())
return false;
switch (event->type()) {
case QEvent::KeyPress:
commitTemporaryPreeditString();
// fall through intended
case QEvent::KeyRelease:
const QKeyEvent *keyEvent = static_cast<const QKeyEvent *>(event);
//If proxy exists, always use hints from proxy.
QWidget *proxy = focusWidget()->focusProxy();
Qt::InputMethodHints currentHints = proxy ? proxy->inputMethodHints() : focusWidget()->inputMethodHints();
switch (keyEvent->key()) {
case Qt::Key_F20:
Q_ASSERT(m_lastImHints == currentHints);
if (m_lastImHints & Qt::ImhHiddenText) {
// Special case in Symbian. On editors with secret text, F20 is for some reason
// considered to be a backspace.
QKeyEvent modifiedEvent(keyEvent->type(), Qt::Key_Backspace, keyEvent->modifiers(),
keyEvent->text(), keyEvent->isAutoRepeat(), keyEvent->count());
QApplication::sendEvent(focusWidget(), &modifiedEvent);
return true;
}
break;
case Qt::Key_Select:
if (!m_preeditString.isEmpty()) {
commitCurrentString(true);
return true;
}
break;
default:
break;
}
QString widgetText = focusWidget()->inputMethodQuery(Qt::ImSurroundingText).toString();
bool validLength;
int maxLength = focusWidget()->inputMethodQuery(Qt::ImMaximumTextLength).toInt(&validLength);
if (!keyEvent->text().isEmpty() && validLength
&& widgetText.size() + m_preeditString.size() >= maxLength) {
// Don't send key events with string content if the widget is "full".
return true;
}
if (keyEvent->type() == QEvent::KeyPress
&& currentHints & Qt::ImhHiddenText
&& !keyEvent->text().isEmpty()) {
// Send some temporary preedit text in order to make text visible for a moment.
m_preeditString = keyEvent->text();
QList<QInputMethodEvent::Attribute> attributes;
QInputMethodEvent imEvent(m_preeditString, attributes);
sendEvent(imEvent);
m_tempPreeditStringTimeout.start(1000, this);
m_hasTempPreeditString = true;
update();
return true;
}
break;
}
if (!needsInputPanel())
return false;
if (event->type() == QEvent::CloseSoftwareInputPanel) {
m_fepState->ReportAknEdStateEventL(MAknEdStateObserver::EAknClosePenInputRequest);
return false;
}
if (event->type() == QEvent::RequestSoftwareInputPanel) {
// Only request virtual keyboard if it is not yet active or if this is the first time
// panel is requested for this application.
static bool firstTime = true;
int vkbActive = 0;
if (firstTime) {
// Sometimes the global QT_EAknFepTouchInputActive value can be left incorrect at
// application exit if the application is exited when input panel is active.
// Therefore we always want to open the panel the first time application requests it.
firstTime = false;
} else {
const TUid KPSUidAknFep = {QT_EPSUidAknFep};
// No need to check for return value, as vkbActive stays zero in that case
RProperty::Get(KPSUidAknFep, QT_EAknFepTouchInputActive, vkbActive);
}
if (!vkbActive) {
// Notify S60 that we want the virtual keyboard to show up.
QSymbianControl *sControl;
sControl = focusWidget()->effectiveWinId()->MopGetObject(sControl);
Q_ASSERT(sControl);
// The FEP UI temporarily steals focus when it shows up the first time, causing
// all sorts of weird effects on the focused widgets. Since it will immediately give
// back focus to us, we temporarily disable focus handling until the job's done.
if (sControl) {
sControl->setIgnoreFocusChanged(true);
}
ensureInputCapabilitiesChanged();
m_fepState->ReportAknEdStateEventL(MAknEdStateObserver::QT_EAknActivatePenInputRequest);
if (sControl) {
sControl->setIgnoreFocusChanged(false);
}
//If m_pointerHandler has already been set, it means that fep inline editing is in progress.
//When this is happening, do not filter out pointer events.
if (!m_pointerHandler)
return true;
}
}
return false;
}
bool QCoeFepInputContext::symbianFilterEvent(QWidget *keyWidget, const QSymbianEvent *event)
{
Q_UNUSED(keyWidget);
if (event->type() == QSymbianEvent::CommandEvent)
// A command basically means the same as a button being pushed. With Qt buttons
// that would normally result in a reset of the input method due to the focus change.
// This should also happen for commands.
reset();
if (event->type() == QSymbianEvent::WindowServerEvent
&& event->windowServerEvent()
&& event->windowServerEvent()->Type() == EEventWindowVisibilityChanged
&& S60->splitViewLastWidget) {
QGraphicsView *gv = qobject_cast<QGraphicsView*>(S60->splitViewLastWidget);
const bool alwaysResize = (gv && gv->verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff);
if (alwaysResize) {
TUint visibleFlags = event->windowServerEvent()->VisibilityChanged()->iFlags;
if (visibleFlags & TWsVisibilityChangedEvent::EPartiallyVisible)
ensureFocusWidgetVisible(S60->splitViewLastWidget);
if (visibleFlags & TWsVisibilityChangedEvent::ENotVisible)
resetSplitViewWidget(true);
}
}
if (event->type() == QSymbianEvent::ResourceChangeEvent
&& (event->resourceChangeType() == KEikMessageFadeAllWindows
|| event->resourceChangeType() == KEikDynamicLayoutVariantSwitch)) {
reset();
}
return false;
}
void QCoeFepInputContext::timerEvent(QTimerEvent *timerEvent)
{
if (timerEvent->timerId() == m_tempPreeditStringTimeout.timerId())
commitTemporaryPreeditString();
}
void QCoeFepInputContext::commitTemporaryPreeditString()
{
if (m_tempPreeditStringTimeout.isActive())
m_tempPreeditStringTimeout.stop();
if (!m_hasTempPreeditString)
return;
commitCurrentString(false);
}
void QCoeFepInputContext::mouseHandler(int x, QMouseEvent *event)
{
Q_ASSERT(focusWidget());
if (event->type() == QEvent::MouseButtonPress && event->button() == Qt::LeftButton) {
QWidget *proxy = focusWidget()->focusProxy();
Qt::InputMethodHints currentHints = proxy ? proxy->inputMethodHints() : focusWidget()->inputMethodHints();
//If splitview is open and T9 word is tapped, pass the pointer event to pointer handler.
//This will open the "suggested words" list. Pass pointer position always as zero, to make
//full word replacement in case user makes a selection.
if (isPartialKeyboardSupported()
&& S60->partialKeyboardOpen
&& m_pointerHandler
&& !(currentHints & Qt::ImhNoPredictiveText)
&& (x > 0 && x < m_preeditString.length())) {
m_pointerHandler->HandlePointerEventInInlineTextL(TPointerEvent::EButton1Up, 0, 0);
} else {
commitCurrentString(true);
int pos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();
QList<QInputMethodEvent::Attribute> attributes;
attributes << QInputMethodEvent::Attribute(QInputMethodEvent::Selection, pos + x, 0, QVariant());
QInputMethodEvent event(QLatin1String(""), attributes);
sendEvent(event);
}
}
}
TCoeInputCapabilities QCoeFepInputContext::inputCapabilities()
{
if (m_inDestruction || !focusWidget()) {
return TCoeInputCapabilities(TCoeInputCapabilities::ENone, 0, 0);
}
return TCoeInputCapabilities(m_textCapabilities, this, 0);
}
void QCoeFepInputContext::resetSplitViewWidget(bool keepInputWidget)
{
QGraphicsView *gv = qobject_cast<QGraphicsView*>(S60->splitViewLastWidget);
if (!gv) {
return;
}
QSymbianControl *symControl = static_cast<QSymbianControl*>(gv->effectiveWinId());
symControl->CancelLongTapTimer();
const bool alwaysResize = (gv->verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff);
QWidget *windowToMove = gv->window();
bool userResize = gv->testAttribute(Qt::WA_Resized);
windowToMove->setUpdatesEnabled(false);
if (!alwaysResize) {
if (gv->scene()) {
if (gv->scene()->focusItem() && S60->partial_keyboardAutoTranslation) {
// Check if the widget contains cursorPositionChanged signal and disconnect from it.
QByteArray signal = QMetaObject::normalizedSignature(SIGNAL(cursorPositionChanged()));
int index = gv->scene()->focusItem()->toGraphicsObject()->metaObject()->indexOfSignal(signal.right(signal.length() - 1));
if (index != -1)
disconnect(gv->scene()->focusItem()->toGraphicsObject(), SIGNAL(cursorPositionChanged()), this, SLOT(translateInputWidget()));
}
QGraphicsItem *rootItem = 0;
foreach (QGraphicsItem *item, gv->scene()->items()) {
if (!item->parentItem()) {
rootItem = item;
break;
}
}
if (rootItem)
rootItem->resetTransform();
}
} else {
if (m_splitViewResizeBy)
if (m_splitViewPreviousWindowStates & Qt::WindowFullScreen)
gv->resize(gv->rect().width(), qApp->desktop()->height());
else
gv->resize(gv->rect().width(), m_splitViewResizeBy);
}
// Resizing might have led to widget losing its original windowstate.
// Restore previous window state.
if (m_splitViewPreviousWindowStates != windowToMove->windowState())
windowToMove->setWindowState(m_splitViewPreviousWindowStates);
windowToMove->setUpdatesEnabled(true);
gv->setAttribute(Qt::WA_Resized, userResize); //not a user resize
m_splitViewResizeBy = 0;
if (!keepInputWidget) {
m_splitViewPreviousWindowStates = Qt::WindowNoState;
S60->splitViewLastWidget = 0;
}
}
// Checks if a given widget is visible in the splitview rect. The offset
// parameter can be used to validate if moving widget upwards or downwards
// by the offset would make a difference for the visibility.
bool QCoeFepInputContext::isWidgetVisible(QWidget *widget, int offset)
{
bool visible = false;
if (widget) {
QRect splitViewRect = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
QWidget *window = QApplication::activeWindow();
QGraphicsView *gv = qobject_cast<QGraphicsView*>(widget);
if (gv && window) {
if (QGraphicsScene *scene = gv->scene()) {
if (QGraphicsItem *focusItem = scene->focusItem()) {
QPoint cursorPos = window->mapToGlobal(focusItem->cursor().pos());
cursorPos.setY(cursorPos.y() + offset);
if (splitViewRect.contains(cursorPos)) {
visible = true;
}
}
}
}
}
return visible;
}
bool QCoeFepInputContext::isPartialKeyboardSupported()
{
return (S60->partial_keyboard || !QApplication::testAttribute(Qt::AA_S60DisablePartialScreenInputMode));
}
// Ensure that the input widget is visible in the splitview rect.
void QCoeFepInputContext::ensureFocusWidgetVisible(QWidget *widget)
{
// Native side opening and closing its virtual keyboard when it changes the keyboard layout,
// has an adverse impact on long tap timer. Cancel the timer when splitview opens to avoid this.
QSymbianControl *symControl = static_cast<QSymbianControl*>(widget->effectiveWinId());
symControl->CancelLongTapTimer();
// Graphicsviews that have vertical scrollbars should always be resized to the splitview area.
// Graphicsviews without scrollbars should be translated.
QGraphicsView *gv = qobject_cast<QGraphicsView*>(widget);
if (!gv)
return;
const bool alwaysResize = (gv && gv->verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff);
const bool moveWithinVisibleArea = (S60->splitViewLastWidget != 0);
QWidget *windowToMove = gv ? gv : symControl->widget();
if (!windowToMove->isWindow())
windowToMove = windowToMove->window();
if (!windowToMove) {
return;
}
// When opening the keyboard (not moving within the splitview area), save the original
// window state. In some cases, ensuring input widget visibility might lead to window
// states getting changed.
if (!moveWithinVisibleArea) {
// Check if the widget contains cursorPositionChanged signal and connect to it.
QByteArray signal = QMetaObject::normalizedSignature(SIGNAL(cursorPositionChanged()));
if (gv->scene() && gv->scene()->focusItem() && S60->partial_keyboardAutoTranslation) {
int index = gv->scene()->focusItem()->toGraphicsObject()->metaObject()->indexOfSignal(signal.right(signal.length() - 1));
if (index != -1)
connect(gv->scene()->focusItem()->toGraphicsObject(), SIGNAL(cursorPositionChanged()), this, SLOT(translateInputWidget()));
}
S60->splitViewLastWidget = widget;
m_splitViewPreviousWindowStates = windowToMove->windowState();
}
int windowTop = widget->window()->pos().y();
const bool userResize = widget->testAttribute(Qt::WA_Resized);
QRect splitViewRect = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
// When resizing a window widget, it will lose its maximized window state.
// Native applications hide statuspane in splitview state, so lets move to
// fullscreen mode. This makes available area slightly bigger, which helps usability
// and greatly reduces event passing in orientation switch cases,
// as the statuspane size is not changing.
if (alwaysResize)
windowToMove->setUpdatesEnabled(false);
if (!(windowToMove->windowState() & Qt::WindowFullScreen)) {
windowToMove->setWindowState(
(windowToMove->windowState() & ~(Qt::WindowMinimized | Qt::WindowFullScreen)) | Qt::WindowFullScreen);
}
if (alwaysResize) {
if (!moveWithinVisibleArea) {
m_splitViewResizeBy = widget->height();
windowTop = widget->geometry().top();
widget->resize(widget->width(), splitViewRect.height() - windowTop);
}
if (gv->scene() && S60->partial_keyboardAutoTranslation) {
const QRectF microFocusRect = gv->scene()->inputMethodQuery(Qt::ImMicroFocus).toRectF();
gv->ensureVisible(microFocusRect);
}
} else {
if (S60->partial_keyboardAutoTranslation)
translateInputWidget();
}
if (alwaysResize)
windowToMove->setUpdatesEnabled(true);
widget->setAttribute(Qt::WA_Resized, userResize); //not a user resize
}
static QTextCharFormat qt_TCharFormat2QTextCharFormat(const TCharFormat &cFormat, bool validStyleColor)
{
QTextCharFormat qFormat;
if (validStyleColor) {
QBrush foreground(QColor(cFormat.iFontPresentation.iTextColor.Internal()));
qFormat.setForeground(foreground);
}
qFormat.setFontStrikeOut(cFormat.iFontPresentation.iStrikethrough == EStrikethroughOn);
qFormat.setFontUnderline(cFormat.iFontPresentation.iUnderline == EUnderlineOn);
return qFormat;
}
void QCoeFepInputContext::updateHints(bool mustUpdateInputCapabilities)
{
QWidget *w = focusWidget();
if (w) {
QWidget *proxy = w->focusProxy();
Qt::InputMethodHints hints = proxy ? proxy->inputMethodHints() : w->inputMethodHints();
// Since splitview support works like an input method hint, yet it is private flag,
// we need to update its state separately.
if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0) {
TInt currentFlags = m_fepState->Flags();
if (isPartialKeyboardSupported())
currentFlags |= QT_EAknEditorFlagEnablePartialScreen;
else
currentFlags &= ~QT_EAknEditorFlagEnablePartialScreen;
if (currentFlags != m_fepState->Flags())
m_fepState->SetFlags(currentFlags);
}
if (hints != m_lastImHints) {
m_lastImHints = hints;
applyHints(hints);
} else if (!mustUpdateInputCapabilities) {
// Optimization. Return immediately if there was no change.
return;
}
}
queueInputCapabilitiesChanged();
}
void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
{
using namespace Qt;
reset();
commitTemporaryPreeditString();
const bool anynumbermodes = hints & (ImhDigitsOnly | ImhFormattedNumbersOnly | ImhDialableCharactersOnly);
const bool anytextmodes = hints & (ImhUppercaseOnly | ImhLowercaseOnly | ImhEmailCharactersOnly | ImhUrlCharactersOnly);
const bool numbersOnly = anynumbermodes && !anytextmodes;
const bool noOnlys = !(hints & ImhExclusiveInputMask);
// if alphanumeric input, or if multiple incompatible number modes are selected;
// then make all symbols available in numeric mode too.
const bool needsCharMap= !numbersOnly || ((hints & ImhFormattedNumbersOnly) && (hints & ImhDialableCharactersOnly));
TInt flags;
Qt::InputMethodHints oldHints = hints;
// Some sanity checking. Make sure that only one preference is set.
InputMethodHints prefs = ImhPreferNumbers | ImhPreferUppercase | ImhPreferLowercase;
prefs &= hints;
if (prefs != ImhPreferNumbers && prefs != ImhPreferUppercase && prefs != ImhPreferLowercase) {
hints &= ~prefs;
}
if (!noOnlys) {
// Make sure that the preference is within the permitted set.
if (hints & ImhPreferNumbers && !anynumbermodes) {
hints &= ~ImhPreferNumbers;
} else if (hints & ImhPreferUppercase && !(hints & ImhUppercaseOnly)) {
hints &= ~ImhPreferUppercase;
} else if (hints & ImhPreferLowercase && !(hints & ImhLowercaseOnly)) {
hints &= ~ImhPreferLowercase;
}
// If there is no preference, set it to something within the permitted set.
if (!(hints & ImhPreferNumbers || hints & ImhPreferUppercase || hints & ImhPreferLowercase)) {
if (hints & ImhLowercaseOnly) {
hints |= ImhPreferLowercase;
} else if (hints & ImhUppercaseOnly) {
hints |= ImhPreferUppercase;
} else if (numbersOnly) {
hints |= ImhPreferNumbers;
}
}
}
if (hints & ImhPreferNumbers) {
m_fepState->SetDefaultInputMode(EAknEditorNumericInputMode);
m_fepState->SetCurrentInputMode(EAknEditorNumericInputMode);
} else {
m_fepState->SetDefaultInputMode(EAknEditorTextInputMode);
m_fepState->SetCurrentInputMode(EAknEditorTextInputMode);
}
flags = 0;
if (noOnlys || (anynumbermodes && anytextmodes)) {
flags = EAknEditorAllInputModes;
}
else if (anynumbermodes) {
flags |= EAknEditorNumericInputMode;
}
else if (anytextmodes) {
flags |= EAknEditorTextInputMode;
}
else {
flags = EAknEditorAllInputModes;
}
m_fepState->SetPermittedInputModes(flags);
ReportAknEdStateEvent(MAknEdStateObserver::EAknEdwinStateInputModeUpdate);
if (hints & ImhPreferLowercase) {
m_fepState->SetDefaultCase(EAknEditorLowerCase);
m_fepState->SetCurrentCase(EAknEditorLowerCase);
} else if (hints & ImhPreferUppercase) {
m_fepState->SetDefaultCase(EAknEditorUpperCase);
m_fepState->SetCurrentCase(EAknEditorUpperCase);
} else if (hints & ImhNoAutoUppercase) {
m_fepState->SetDefaultCase(EAknEditorLowerCase);
m_fepState->SetCurrentCase(EAknEditorLowerCase);
} else {
m_fepState->SetDefaultCase(EAknEditorTextCase);
m_fepState->SetCurrentCase(EAknEditorTextCase);
}
flags = 0;
if (hints & ImhUppercaseOnly) {
flags |= EAknEditorUpperCase;
}
if (hints & ImhLowercaseOnly) {
flags |= EAknEditorLowerCase;
}
if (flags == 0) {
flags = EAknEditorAllCaseModes;
if (hints & ImhNoAutoUppercase) {
flags &= ~EAknEditorTextCase;
}
}
m_fepState->SetPermittedCases(flags);
ReportAknEdStateEvent(MAknEdStateObserver::EAknEdwinStateCaseModeUpdate);
flags = 0;
if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0) {
if (isPartialKeyboardSupported())
flags |= QT_EAknEditorFlagEnablePartialScreen;
flags |= QT_EAknEditorFlagSelectionVisible;
}
if (hints & ImhUppercaseOnly && !(hints & ImhLowercaseOnly)
|| hints & ImhLowercaseOnly && !(hints & ImhUppercaseOnly)) {
flags |= EAknEditorFlagFixedCase;
}
// Using T9 and hidden text together may actually crash the FEP, so check for hidden text too.
if (hints & ImhNoPredictiveText || hints & ImhHiddenText) {
flags |= EAknEditorFlagNoT9;
}
if (needsCharMap)
flags |= EAknEditorFlagUseSCTNumericCharmap;
m_fepState->SetFlags(flags);
ReportAknEdStateEvent(MAknEdStateObserver::EAknEdwinStateFlagsUpdate);
if (hints & ImhDialableCharactersOnly) {
// This is first, because if (ImhDialableCharactersOnly | ImhFormattedNumbersOnly)
// is specified, this one is more natural (# key enters a #)
flags = EAknEditorStandardNumberModeKeymap;
} else if (hints & ImhFormattedNumbersOnly) {
// # key enters decimal point
flags = EAknEditorCalculatorNumberModeKeymap;
} else if (hints & ImhDigitsOnly) {
// This is last, because it is most restrictive (# key is inactive)
flags = EAknEditorPlainNumberModeKeymap;
} else {
flags = EAknEditorStandardNumberModeKeymap;
}
m_fepState->SetNumericKeymap(static_cast<TAknEditorNumericKeymap>(flags));
if (hints & ImhUrlCharactersOnly) {
// URL characters is everything except space, so a superset of the other restrictions
m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_URL_SPECIAL_CHARACTER_TABLE_DIALOG);
} else if (hints & ImhEmailCharactersOnly) {
m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_EMAIL_ADDR_SPECIAL_CHARACTER_TABLE_DIALOG);
} else if (needsCharMap) {
m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_SPECIAL_CHARACTER_TABLE_DIALOG);
} else {
m_fepState->SetSpecialCharacterTableResourceId(0);
}
if (hints & ImhHiddenText) {
m_textCapabilities = TCoeInputCapabilities::EAllText | TCoeInputCapabilities::ESecretText;
} else {
m_textCapabilities = TCoeInputCapabilities::EAllText;
}
}
void QCoeFepInputContext::applyFormat(QList<QInputMethodEvent::Attribute> *attributes)
{
TCharFormat cFormat;
QColor styleTextColor;
if (QWidget *focused = focusWidget()) {
QGraphicsView *gv = qobject_cast<QGraphicsView*>(focused);
if (!gv) // could be either the QGV or its viewport that has focus
gv = qobject_cast<QGraphicsView*>(focused->parentWidget());
if (gv) {
if (QGraphicsScene *scene = gv->scene()) {
if (QGraphicsItem *focusItem = scene->focusItem()) {
if (focusItem->isWidget()) {
styleTextColor = static_cast<QGraphicsWidget*>(focusItem)->palette().text().color();
}
}
}
} else {
styleTextColor = focused->palette().text().color();
}
} else {
styleTextColor = QApplication::palette("QLineEdit").text().color();
}
if (styleTextColor.isValid()) {
const TLogicalRgb fontColor(TRgb(styleTextColor.red(), styleTextColor.green(), styleTextColor.blue(), styleTextColor.alpha()));
cFormat.iFontPresentation.iTextColor = fontColor;
}
TInt numChars = 0;
TInt charPos = 0;
int oldSize = attributes->size();
while (m_formatRetriever) {
m_formatRetriever->GetFormatOfFepInlineText(cFormat, numChars, charPos);
if (numChars <= 0) {
// This shouldn't happen according to S60 docs, but apparently does sometimes.
break;
}
attributes->append(QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat,
charPos,
numChars,
QVariant(qt_TCharFormat2QTextCharFormat(cFormat, styleTextColor.isValid()))));
charPos += numChars;
if (charPos >= m_preeditString.size()) {
break;
}
}
if (attributes->size() == oldSize) {
// S60 didn't provide any format, so let's give our own instead.
attributes->append(QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat,
0,
m_preeditString.size(),
standardFormat(PreeditFormat)));
}
}
void QCoeFepInputContext::queueInputCapabilitiesChanged()
{
if (m_pendingInputCapabilitiesChanged)
return;
// Call ensureInputCapabilitiesChanged asynchronously. This is done to improve performance
// by not updating input capabilities too often. The reason we don't call the Symbian
// asynchronous version of InputCapabilitiesChanged is because we need to ensure that it
// is synchronous in some specific cases. Those will call ensureInputCapabilitesChanged.
QMetaObject::invokeMethod(this, "ensureInputCapabilitiesChanged", Qt::QueuedConnection);
m_pendingInputCapabilitiesChanged = true;
}
void QCoeFepInputContext::ensureInputCapabilitiesChanged()
{
if (!m_pendingInputCapabilitiesChanged)
return;
// The call below is essentially equivalent to InputCapabilitiesChanged(),
// but is synchronous, rather than asynchronous.
CCoeEnv::Static()->SyncNotifyFocusObserversOfChangeInFocus();
m_pendingInputCapabilitiesChanged = false;
}
void QCoeFepInputContext::translateInputWidget()
{
QGraphicsView *gv = qobject_cast<QGraphicsView *>(S60->splitViewLastWidget);
if (!gv)
return;
QRect splitViewRect = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
QRectF cursor = gv->scene()->inputMethodQuery(Qt::ImMicroFocus).toRectF();
QPolygon cursorP = gv->mapFromScene(cursor);
QRectF vkbRect = QRectF(splitViewRect.bottomLeft(), qApp->desktop()->rect().bottomRight());
if (cursor.isEmpty() || vkbRect.isEmpty())
return;
// Fetch root item (i.e. graphicsitem with no parent)
QGraphicsItem *rootItem = 0;
foreach (QGraphicsItem *item, gv->scene()->items()) {
if (!item->parentItem()) {
rootItem = item;
break;
}
}
if (!rootItem)
return;
m_transformation = (rootItem->transform().isTranslating()) ? QRectF(0,0, gv->width(), rootItem->transform().dy()) : QRectF();
// Adjust cursor bounding rect to be lower, so that view translates if the cursor gets near
// the splitview border.
QRect cursorRect = cursorP.boundingRect().adjusted(0, cursor.height(), 0, cursor.height());
if (splitViewRect.contains(cursorRect))
return;
// New Y position should be ideally just above the keyboard.
// If that would expose unpainted canvas, limit the tranformation to the visible scene rect or
// to the focus item's shape/clip path.
const QPainterPath path = gv->scene()->focusItem()->isClipped() ?
gv->scene()->focusItem()->clipPath() : gv->scene()->focusItem()->shape();
const qreal itemHeight = path.boundingRect().height();
// Limit the maximum translation so that underlaying window content is not exposed.
qreal maxY = gv->sceneRect().bottom() - splitViewRect.bottom();
maxY = m_transformation.height() ? (qMin(itemHeight, maxY) + m_transformation.height()) : maxY;
if (maxY < 0)
maxY = 0;
// Translation should happen row-by-row, but initially it needs to ensure that cursor is visible.
const qreal translation = m_transformation.height() ?
cursor.height() : (cursorRect.bottom() - vkbRect.top());
const qreal dy = -(qMin(maxY, translation));
// Do not allow transform above screen top, nor beyond scenerect
if (m_transformation.height() + dy > 0 || gv->sceneRect().bottom() + m_transformation.height() < 0) {
// If we already have some transformation, remove it.
if (m_transformation.height() < 0 || gv->sceneRect().bottom() + m_transformation.height() < 0) {
rootItem->resetTransform();
translateInputWidget();
}
return;
}
rootItem->setTransform(QTransform::fromTranslate(0, dy), true);
}
void QCoeFepInputContext::StartFepInlineEditL(const TDesC& aInitialInlineText,
TInt aPositionOfInsertionPointInInlineText, TBool aCursorVisibility, const MFormCustomDraw* /*aCustomDraw*/,
MFepInlineTextFormatRetriever& aInlineTextFormatRetriever,
MFepPointerEventHandlerDuringInlineEdit& aPointerEventHandlerDuringInlineEdit)
{
QWidget *w = focusWidget();
if (!w)
return;
m_cachedPreeditString.clear();
commitTemporaryPreeditString();
QList<QInputMethodEvent::Attribute> attributes;
m_cursorVisibility = aCursorVisibility ? 1 : 0;
m_inlinePosition = aPositionOfInsertionPointInInlineText;
m_preeditString = qt_TDesC2QString(aInitialInlineText);
m_formatRetriever = &aInlineTextFormatRetriever;
m_pointerHandler = &aPointerEventHandlerDuringInlineEdit;
// With T9 aInitialInlineText is typically empty when StartFepInlineEditL is called,
// but FEP requires that selected text is always removed at StartFepInlineEditL.
// Let's remove the selected text if aInitialInlineText is empty and there is selected text
if (m_preeditString.isEmpty()) {
int anchor = w->inputMethodQuery(Qt::ImAnchorPosition).toInt();
int cursorPos = w->inputMethodQuery(Qt::ImCursorPosition).toInt();
int replacementLength = qAbs(cursorPos-anchor);
if (replacementLength > 0) {
int replacementStart = cursorPos < anchor ? 0 : -replacementLength;
QList<QInputMethodEvent::Attribute> clearSelectionAttributes;
QInputMethodEvent clearSelectionEvent(QLatin1String(""), clearSelectionAttributes);
clearSelectionEvent.setCommitString(QLatin1String(""), replacementStart, replacementLength);
sendEvent(clearSelectionEvent);
}
}
applyFormat(&attributes);
attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::Cursor,
m_inlinePosition,
m_cursorVisibility,
QVariant()));
QInputMethodEvent event(m_preeditString, attributes);
sendEvent(event);
}
void QCoeFepInputContext::UpdateFepInlineTextL(const TDesC& aNewInlineText,
TInt aPositionOfInsertionPointInInlineText)
{
QWidget *w = focusWidget();
if (!w)
return;
commitTemporaryPreeditString();
m_inlinePosition = aPositionOfInsertionPointInInlineText;
QList<QInputMethodEvent::Attribute> attributes;
applyFormat(&attributes);
attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::Cursor,
m_inlinePosition,
m_cursorVisibility,
QVariant()));
QString newPreeditString = qt_TDesC2QString(aNewInlineText);
QInputMethodEvent event(newPreeditString, attributes);
if (!m_cachedPreeditString.isEmpty()) {
event.setCommitString(QLatin1String(""), -m_cachedPreeditString.length(), m_cachedPreeditString.length());
m_cachedPreeditString.clear();
} else if (newPreeditString.isEmpty() && m_preeditString.isEmpty()) {
// In Symbian world this means "erase last character".
event.setCommitString(QLatin1String(""), -1, 1);
}
m_preeditString = newPreeditString;
sendEvent(event);
}
void QCoeFepInputContext::SetInlineEditingCursorVisibilityL(TBool aCursorVisibility)
{
QWidget *w = focusWidget();
if (!w)
return;
m_cursorVisibility = aCursorVisibility ? 1 : 0;
QList<QInputMethodEvent::Attribute> attributes;
attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::Cursor,
m_inlinePosition,
m_cursorVisibility,
QVariant()));
QInputMethodEvent event(m_preeditString, attributes);
sendEvent(event);
}
void QCoeFepInputContext::CancelFepInlineEdit()
{
// We are not supposed to ever have a tempPreeditString and a real preedit string
// from S60 at the same time, so it should be safe to rely on this test to determine
// whether we should honor S60's request to clear the text or not.
if (m_hasTempPreeditString)
return;
QList<QInputMethodEvent::Attribute> attributes;
QInputMethodEvent event(QLatin1String(""), attributes);
event.setCommitString(QLatin1String(""), 0, 0);
m_preeditString.clear();
m_inlinePosition = 0;
sendEvent(event);
}
TInt QCoeFepInputContext::DocumentLengthForFep() const
{
QWidget *w = focusWidget();
if (!w)
return 0;
QVariant variant = w->inputMethodQuery(Qt::ImSurroundingText);
return variant.value<QString>().size() + m_preeditString.size();
}
TInt QCoeFepInputContext::DocumentMaximumLengthForFep() const
{
QWidget *w = focusWidget();
if (!w)
return 0;
QVariant variant = w->inputMethodQuery(Qt::ImMaximumTextLength);
int size;
if (variant.isValid()) {
size = variant.toInt();
} else {
size = INT_MAX; // Sensible default for S60.
}
return size;
}
void QCoeFepInputContext::SetCursorSelectionForFepL(const TCursorSelection& aCursorSelection)
{
QWidget *w = focusWidget();
if (!w)
return;
commitTemporaryPreeditString();
int pos = aCursorSelection.iAnchorPos;
int length = aCursorSelection.iCursorPos - pos;
QList<QInputMethodEvent::Attribute> attributes;
attributes << QInputMethodEvent::Attribute(QInputMethodEvent::Selection, pos, length, QVariant());
QInputMethodEvent event(m_preeditString, attributes);
sendEvent(event);
}
void QCoeFepInputContext::GetCursorSelectionForFep(TCursorSelection& aCursorSelection) const
{
QWidget *w = focusWidget();
if (!w) {
aCursorSelection.SetSelection(0,0);
return;
}
int cursor = w->inputMethodQuery(Qt::ImCursorPosition).toInt() + m_preeditString.size();
int anchor = w->inputMethodQuery(Qt::ImAnchorPosition).toInt() + m_preeditString.size();
QString text = w->inputMethodQuery(Qt::ImSurroundingText).value<QString>();
int combinedSize = text.size() + m_preeditString.size();
if (combinedSize < anchor || combinedSize < cursor) {
// ### TODO! FIXME! QTBUG-5050
// This is a hack to prevent crashing in 4.6 with QLineEdits that use input masks.
// The root problem is that cursor position is relative to displayed text instead of the
// actual text we get.
//
// To properly fix this we would need to know the displayText of QLineEdits instead
// of just the text, which on itself should be a trivial change. The difficulties start
// when we need to commit the changes back to the QLineEdit, which would have to be somehow
// able to handle displayText, too.
//
// Until properly fixed, the cursor and anchor positions will not reflect correct positions
// for masked QLineEdits, unless all the masked positions are filled in order so that
// cursor position relative to the displayed text matches position relative to actual text.
aCursorSelection.iAnchorPos = combinedSize;
aCursorSelection.iCursorPos = combinedSize;
} else {
aCursorSelection.iAnchorPos = anchor;
aCursorSelection.iCursorPos = cursor;
}
}
void QCoeFepInputContext::GetEditorContentForFep(TDes& aEditorContent, TInt aDocumentPosition,
TInt aLengthToRetrieve) const
{
QWidget *w = focusWidget();
if (!w) {
aEditorContent.FillZ(aLengthToRetrieve);
return;
}
QString text = w->inputMethodQuery(Qt::ImSurroundingText).value<QString>();
// FEP expects the preedit string to be part of the editor content, so let's mix it in.
int cursor = w->inputMethodQuery(Qt::ImCursorPosition).toInt();
text.insert(cursor, m_preeditString);
aEditorContent.Copy(qt_QString2TPtrC(text.mid(aDocumentPosition, aLengthToRetrieve)));
}
void QCoeFepInputContext::GetFormatForFep(TCharFormat& aFormat, TInt /* aDocumentPosition */) const
{
QWidget *w = focusWidget();
if (!w) {
aFormat = TCharFormat();
return;
}
QFont font = w->inputMethodQuery(Qt::ImFont).value<QFont>();
QFontMetrics metrics(font);
//QString name = font.rawName();
QString name = font.defaultFamily(); // TODO! FIXME! Should be the above.
QHBufC hBufC(name);
aFormat = TCharFormat(hBufC->Des(), metrics.height());
}
void QCoeFepInputContext::GetScreenCoordinatesForFepL(TPoint& aLeftSideOfBaseLine, TInt& aHeight,
TInt& aAscent, TInt /* aDocumentPosition */) const
{
QWidget *w = focusWidget();
if (!w) {
aLeftSideOfBaseLine = TPoint(0,0);
aHeight = 0;
aAscent = 0;
return;
}
QRect rect = w->inputMethodQuery(Qt::ImMicroFocus).value<QRect>();
aLeftSideOfBaseLine.iX = rect.left();
aLeftSideOfBaseLine.iY = rect.bottom();
QFont font = w->inputMethodQuery(Qt::ImFont).value<QFont>();
QFontMetrics metrics(font);
aHeight = metrics.height();
aAscent = metrics.ascent();
}
void QCoeFepInputContext::DoCommitFepInlineEditL()
{
commitCurrentString(false);
if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0)
ReportAknEdStateEvent(QT_EAknCursorPositionChanged);
}
void QCoeFepInputContext::commitCurrentString(bool cancelFepTransaction)
{
QList<QInputMethodEvent::Attribute> attributes;
QInputMethodEvent event(QLatin1String(""), attributes);
event.setCommitString(m_preeditString, 0, 0);
m_preeditString.clear();
m_inlinePosition = 0;
sendEvent(event);
m_hasTempPreeditString = false;
//Only cancel FEP transactions with prediction, when there is still active window.
Qt::InputMethodHints currentHints = Qt::ImhNone;
if (focusWidget()) {
if (focusWidget()->focusProxy())
currentHints = focusWidget()->focusProxy()->inputMethodHints();
else
currentHints = focusWidget()->inputMethodHints();
}
bool predictive = !(currentHints & Qt::ImhNoPredictiveText);
bool widgetAndWindowAvailable = QApplication::activeWindow() && focusWidget();
if (cancelFepTransaction && ((predictive && widgetAndWindowAvailable) || !predictive)) {
CCoeFep* fep = CCoeEnv::Static()->Fep();
if (fep)
fep->CancelTransaction();
}
}
MCoeFepAwareTextEditor_Extension1* QCoeFepInputContext::Extension1(TBool& aSetToTrue)
{
aSetToTrue = ETrue;
return this;
}
void QCoeFepInputContext::SetStateTransferingOwnershipL(MCoeFepAwareTextEditor_Extension1::CState* aState,
TUid /*aTypeSafetyUid*/)
{
// Note: The S60 docs are wrong! See the State() function.
if (m_fepState)
delete m_fepState;
m_fepState = static_cast<CAknEdwinState *>(aState);
}
MCoeFepAwareTextEditor_Extension1::CState* QCoeFepInputContext::State(TUid /*aTypeSafetyUid*/)
{
// Note: The S60 docs are horribly wrong when describing the
// SetStateTransferingOwnershipL function and this function. They say that the former
// sets a CState object identified by the TUid, and the latter retrieves it.
// In reality, the CState is expected to always be a CAknEdwinState (even if it was not
// previously set), and the TUid is ignored. All in all, there is a single CAknEdwinState
// per QCoeFepInputContext, which should be deleted if the SetStateTransferingOwnershipL
// function is used to set a new one.
return m_fepState;
}
TTypeUid::Ptr QCoeFepInputContext::MopSupplyObject(TTypeUid /*id*/)
{
return TTypeUid::Null();
}
MObjectProvider *QCoeFepInputContext::MopNext()
{
QWidget *w = focusWidget();
if (w)
return w->effectiveWinId();
return 0;
}
QT_END_NAMESPACE
#endif // QT_NO_IM
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