diff options
Diffstat (limited to 'src/plugins/platforms/blackberry/qbbinputcontext_imf.cpp')
| -rw-r--r-- | src/plugins/platforms/blackberry/qbbinputcontext_imf.cpp | 1696 |
1 files changed, 1696 insertions, 0 deletions
diff --git a/src/plugins/platforms/blackberry/qbbinputcontext_imf.cpp b/src/plugins/platforms/blackberry/qbbinputcontext_imf.cpp new file mode 100644 index 0000000000..fab3d3f151 --- /dev/null +++ b/src/plugins/platforms/blackberry/qbbinputcontext_imf.cpp @@ -0,0 +1,1696 @@ +/*************************************************************************** +** +** Copyright (C) 2011 - 2012 Research In Motion +** Contact: http://www.qt-project.org/ +** +** This file is part of the plugins 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. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qbbinputcontext_imf.h" +#include "qbbeventthread.h" +#include "qbbvirtualkeyboard.h" + +#include <QtWidgets/QAbstractSpinBox> +#include <QtWidgets/QAction> + +#include <QtGui/QGuiApplication> +#include <QtGui/QInputMethodEvent> +#include <QtGui/QTextCharFormat> + +#include <QtCore/QDebug> +#include <QtCore/QMutex> +#include <QtCore/QVariant> +#include <QtCore/QVariantHash> +#include <QtCore/QWaitCondition> + +#include <dlfcn.h> +#include "imf/imf_client.h" +#include "imf/input_control.h" +#include <process.h> +#include <sys/keycodes.h> + +/** TODO: + Support inputMethodHints to restrict input (needs additional features in IMF). +*/ + +#define STRX(x) #x +#define STR(x) STRX(x) + +// Someone tell me why input_control methods are in this namespace, but the rest is not. +using namespace InputMethodSystem; + +#define qs(x) QString::fromLatin1(x) +#define iarg(name) event->mArgs[qs(#name)] = QVariant::fromValue(name) +#define parg(name) event->mArgs[qs(#name)] = QVariant::fromValue((void*)name) +namespace +{ + +spannable_string_t *toSpannableString(const QString &text); +static const input_session_t *sInputSession = 0; +bool isSessionOkay(input_session_t *ic) +{ + return ic !=0 && sInputSession != 0 && ic->component_id == sInputSession->component_id; +} + +enum ImfEventType +{ + ImfBeginBatchEdit, + ImfClearMetaKeyStates, + ImfCommitText, + ImfDeleteSurroundingText, + ImfEndBatchEdit, + ImfFinishComposingText, + ImfGetCursorCapsMode, + ImfGetCursorPosition, + ImfGetExtractedText, + ImfGetSelectedText, + ImfGetTextAfterCursor, + ImfGetTextBeforeCursor, + ImfPerformEditorAction, + ImfReportFullscreenMode, + ImfSendEvent, + ImfSendAsyncEvent, + ImfSetComposingRegion, + ImfSetComposingText, + ImfSetSelection +}; + +// We use this class as a round about way to support a posting synchronous event into +// Qt's main thread from the IMF thread. +class ImfEventResult +{ +public: + ImfEventResult() + { + m_mutex.lock(); + } + + ~ImfEventResult() + { + m_mutex.unlock(); + } + + void wait() + { + m_wait.wait(&m_mutex); + } + + void signal() + { + m_wait.wakeAll(); + } + + void setResult(const QVariant& result) + { + m_mutex.lock(); + m_retVal = result; + signal(); + m_mutex.unlock(); + } + + QVariant result() + { + return m_retVal; + } + +private: + QVariant m_retVal; + QMutex m_mutex; + QWaitCondition m_wait; +}; + +class ImfEvent : public QEvent +{ + public: + ImfEvent(input_session_t *session, ImfEventType type, ImfEventResult *result) : + QEvent((QEvent::Type)sUserEventType), + m_session(session), + m_imfType(type), + m_result(result) + { + } + ~ImfEvent() { } + + input_session_t *m_session; + ImfEventType m_imfType; + QVariantHash m_args; + ImfEventResult *m_result; + + static int sUserEventType; +}; +int ImfEvent::sUserEventType = QEvent::registerEventType(); + +static int32_t imfBeginBatchEdit(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfBeginBatchEdit, &result); + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static int32_t imfClearMetaKeyStates(input_session_t *ic, int32_t states) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfClearMetaKeyStates, &result); + iarg(states); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static int32_t imfCommitText(input_session_t *ic, spannable_string_t *text, int32_t new_cursor_position) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfCommitText, &result); + parg(text); + iarg(new_cursor_position); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static int32_t imfDeleteSurroundingText(input_session_t *ic, int32_t left_length, int32_t right_length) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfDeleteSurroundingText, &result); + iarg(left_length); + iarg(right_length); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static int32_t imfEndBatchEdit(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfEndBatchEdit, &result); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static int32_t imfFinishComposingText(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfFinishComposingText, &result); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static int32_t imfGetCursorCapsMode(input_session_t *ic, int32_t req_modes) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfGetCursorCapsMode, &result); + iarg(req_modes); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + int32_t ret = result.result().value<int32_t>(); + return ret; +} + +static int32_t imfGetCursorPosition(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfGetCursorPosition, &result); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + + return ret; +} + +static extracted_text_t *imfGetExtractedText(input_session_t *ic, extracted_text_request_t *request, int32_t flags) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#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 et; + } + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfGetExtractedText, &result); + parg(request); + iarg(flags); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + return result.result().value<extracted_text_t *>(); +} + +static spannable_string_t *imfGetSelectedText(input_session_t *ic, int32_t flags) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return toSpannableString(""); + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfGetSelectedText, &result); + iarg(flags); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + return result.result().value<extracted_text_t *>(); +} + +static spannable_string_t *imfGetTextAfterCursor(input_session_t *ic, int32_t n, int32_t flags) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return toSpannableString(""); + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfGetTextAfterCursor, &result); + iarg(n); + iarg(flags); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + return result.result().value<extracted_text_t *>(); +} + +static spannable_string_t *imfGetTextBeforeCursor(input_session_t *ic, int32_t n, int32_t flags) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return toSpannableString(""); + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfGetTextBeforeCursor, &result); + iarg(n); + iarg(flags); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + return result.result().value<extracted_text_t *>(); +} + +static int32_t imfPerformEditorAction(input_session_t *ic, int32_t editor_action) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfPerformEditorAction, &result); + iarg(editor_action); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + return ret; +} + +static int32_t imfReportFullscreenMode(input_session_t *ic, int32_t enabled) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfReportFullscreenMode, &result); + iarg(enabled); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + return ret; +} + +static int32_t imfSendEvent(input_session_t *ic, event_t *event) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEvent *imfEvent = new ImfEvent(ic, ImfSendEvent, 0); + imfEvent->m_args[qs("event")] = QVariant::fromValue(static_cast<void *>(event)); + + QCoreApplication::postEvent(QCoreApplication::instance(), imfEvent); + + return 0; +} + +static int32_t imfSendAsyncEvent(input_session_t *ic, event_t *event) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEvent *imfEvent = new ImfEvent(ic, ImfSendAsyncEvent, 0); + imfEvent->m_args[qs("event")] = QVariant::fromValue(static_cast<void *>(event)); + + QCoreApplication::postEvent(QCoreApplication::instance(), imfEvent); + + return 0; +} + +static int32_t imfSetComposingRegion(input_session_t *ic, int32_t start, int32_t end) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfSetComposingRegion, &result); + iarg(start); + iarg(end); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + return ret; +} + +static int32_t imfSetComposingText(input_session_t *ic, spannable_string_t *text, int32_t new_cursor_position) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfSetComposingText, &result); + parg(text); + iarg(new_cursor_position); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + return ret; +} + +static int32_t imfSetSelection(input_session_t *ic, int32_t start, int32_t end) +{ +#if defined(QBBINPUTCONTEXT_IMF_EVENT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + ImfEventResult result; + ImfEvent *event = new ImfEvent(ic, ImfSetSelection, &result); + iarg(start); + iarg(end); + + QCoreApplication::postEvent(QCoreApplication::instance(), event); + + result.wait(); + int32_t ret = result.result().value<int32_t>(); + return ret; +} + +static connection_interface_t ic_funcs = { + imfBeginBatchEdit, + imfClearMetaKeyStates, + imfCommitText, + imfDeleteSurroundingText, + imfEndBatchEdit, + imfFinishComposingText, + imfGetCursorCapsMode, + imfGetCursorPosition, + imfGetExtractedText, + imfGetSelectedText, + imfGetTextAfterCursor, + imfGetTextBeforeCursor, + imfPerformEditorAction, + imfReportFullscreenMode, + NULL, //ic_send_key_event + imfSendEvent, + imfSendAsyncEvent, + imfSetComposingRegion, + imfSetComposingText, + imfSetSelection, + NULL, //ic_set_candidates, +}; + +static void +initEvent(event_t *pEvent, const input_session_t *pSession, EventType eventType, int eventId) +{ + static int s_transactionId; + + // Make sure structure is squeaky clean since it's not clear just what is significant. + memset(pEvent, 0, sizeof(event_t)); + pEvent->event_type = eventType; + pEvent->event_id = eventId; + pEvent->pid = getpid(); + pEvent->component_id = pSession->component_id; + pEvent->transaction_id = ++s_transactionId; +} + +spannable_string_t *toSpannableString(const QString &text) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << text; +#endif + + spannable_string_t *pString = reinterpret_cast<spannable_string_t *>(malloc(sizeof(spannable_string_t))); + pString->str = (wchar_t *)malloc(sizeof(wchar_t) * text.length() + 1); + pString->length = text.length(); + pString->spans = NULL; + pString->spans_count = 0; + + const QChar *pData = text.constData(); + wchar_t *pDst = pString->str; + + while (!pData->isNull()) + { + *pDst = pData->unicode(); + pDst++; + pData++; + } + *pDst = 0; + + return pString; +} + +} // namespace + +static const input_session_t *(*p_ictrl_open_session)(connection_interface_t *) = 0; +static void (*p_ictrl_close_session)(input_session_t *) = 0; +static int32_t (*p_ictrl_dispatch_event)(event_t*) = 0; +static int32_t (*p_imf_client_init)() = 0; +static void (*p_imf_client_disconnect)() = 0; +static int32_t (*p_vkb_init_selection_service)() = 0; +static int32_t (*p_ictrl_get_num_active_sessions)() = 0; +static bool s_imfInitFailed = false; + +static bool imfAvailable() +{ + static bool s_imfDisabled = getenv("DISABLE_IMF") != NULL; + static bool s_imfReady = false; + + if ( s_imfInitFailed || s_imfDisabled) { + return false; + } + else if ( s_imfReady ) { + return true; + } + + if ( p_imf_client_init == NULL ) { + void *handle = dlopen("libinput_client.so.1", 0); + if ( handle ) { + p_imf_client_init = (int32_t (*)()) dlsym(handle, "imf_client_init"); + p_imf_client_disconnect = (void (*)()) dlsym(handle, "imf_client_disconnect"); + p_ictrl_open_session = (const input_session_t *(*)(connection_interface_t *))dlsym(handle, "ictrl_open_session"); + p_ictrl_close_session = (void (*)(input_session_t *))dlsym(handle, "ictrl_close_session"); + p_ictrl_dispatch_event = (int32_t (*)(event_t *))dlsym(handle, "ictrl_dispatch_event"); + p_vkb_init_selection_service = (int32_t (*)())dlsym(handle, "vkb_init_selection_service"); + p_ictrl_get_num_active_sessions = (int32_t (*)())dlsym(handle, "ictrl_get_num_active_sessions"); + } + else + { + qCritical() << Q_FUNC_INFO << "libinput_client.so.1 is not present - IMF services are disabled."; + s_imfDisabled = true; + return false; + } + if ( p_imf_client_init && p_ictrl_open_session && p_ictrl_dispatch_event ) { + s_imfReady = true; + } + else { + p_ictrl_open_session = NULL; + p_ictrl_dispatch_event = NULL; + s_imfDisabled = true; + qCritical() << Q_FUNC_INFO << "libinput_client.so.1 did not contain the correct symbols, library mismatch? IMF services are disabled."; + return false; + } + } + + return s_imfReady; +} + +QBBInputContext::QBBInputContext(): + QPlatformInputContext(), + m_lastCaretPos(0), + m_isComposing(false), + m_inputPanelVisible(false), + m_inputPanelLocale(QLocale::c()) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#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(); + + QBBVirtualKeyboard &keyboard = QBBVirtualKeyboard::instance(); + connect(&keyboard, SIGNAL(visibilityChanged(bool)), this, SLOT(keyboardVisibilityChanged(bool))); + connect(&keyboard, SIGNAL(localeChanged(QLocale)), this, SLOT(keyboardLocaleChanged(QLocale))); + keyboardVisibilityChanged(keyboard.isVisible()); + keyboardLocaleChanged(keyboard.locale()); + + QInputMethod *inputMethod = qApp->inputMethod(); + connect(inputMethod, SIGNAL(inputItemChanged()), this, SLOT(inputItemChanged())); + +} + +QBBInputContext::~QBBInputContext() +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!imfAvailable()) + return; + + QCoreApplication::instance()->removeEventFilter(this); + p_imf_client_disconnect(); +} + +#define getarg(type, name) type name = imfEvent->mArgs[qs(#name)].value<type>() +#define getparg(type, name) type name = (type)(imfEvent->mArgs[qs(#name)].value<void*>()) + +bool QBBInputContext::isValid() const +{ + return imfAvailable(); +} + +bool QBBInputContext::eventFilter(QObject *obj, QEvent *event) +{ + if (event->type() == ImfEvent::sUserEventType) { + // Forward the event to our real handler. + ImfEvent *imfEvent = static_cast<ImfEvent *>(event); + switch (imfEvent->m_imfType) { + case ImfBeginBatchEdit: { + int32_t ret = onBeginBatchEdit(imfEvent->m_session); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfClearMetaKeyStates: { + getarg(int32_t, states); + int32_t ret = onClearMetaKeyStates(imfEvent->m_session, states); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfCommitText: { + getparg(spannable_string_t*, text); + getarg(int32_t, new_cursor_position); + int32_t ret = onCommitText(imfEvent->m_session, text, new_cursor_position); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfDeleteSurroundingText: { + getarg(int32_t, left_length); + getarg(int32_t, right_length); + int32_t ret = onDeleteSurroundingText(imfEvent->m_session, left_length, right_length); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfEndBatchEdit: { + int32_t ret = onEndBatchEdit(imfEvent->m_session); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfFinishComposingText: { + int32_t ret = onFinishComposingText(imfEvent->m_session); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfGetCursorCapsMode: { + getarg(int32_t, req_modes); + int32_t ret = onGetCursorCapsMode(imfEvent->m_session, req_modes); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfGetCursorPosition: { + int32_t ret = onGetCursorPosition(imfEvent->m_session); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfGetExtractedText: { + getparg(extracted_text_request_t*, request); + getarg(int32_t, flags); + extracted_text_t *ret = onGetExtractedText(imfEvent->m_session, request, flags); + imfEvent->m_result->setResult(QVariant::fromValue(static_cast<void *>(ret))); + break; + } + + case ImfGetSelectedText: { + getarg(int32_t, flags); + spannable_string_t *ret = onGetSelectedText(imfEvent->m_session, flags); + imfEvent->m_result->setResult(QVariant::fromValue(static_cast<void *>(ret))); + break; + } + + case ImfGetTextAfterCursor: { + getarg(int32_t, n); + getarg(int32_t, flags); + spannable_string_t *ret = onGetTextAfterCursor(imfEvent->m_session, n, flags); + imfEvent->m_result->setResult(QVariant::fromValue(static_cast<void *>(ret))); + break; + } + + case ImfGetTextBeforeCursor: { + getarg(int32_t, n); + getarg(int32_t, flags); + spannable_string_t *ret = onGetTextBeforeCursor(imfEvent->m_session, n, flags); + imfEvent->m_result->setResult(QVariant::fromValue((void*)ret)); + break; + } + + case ImfPerformEditorAction: { + getarg(int32_t, editor_action); + int32_t ret = onPerformEditorAction(imfEvent->m_session, editor_action); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfReportFullscreenMode: { + getarg(int32_t, enabled); + int32_t ret = onReportFullscreenMode(imfEvent->m_session, enabled); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfSendEvent: { + getparg(event_t*, event); + onSendEvent(imfEvent->m_session, event); + break; + } + + case ImfSendAsyncEvent: { + getparg(event_t*, event); + onSendAsyncEvent(imfEvent->m_session, event); + break; + } + + case ImfSetComposingRegion: { + getarg(int32_t, start); + getarg(int32_t, end); + int32_t ret = onSetComposingRegion(imfEvent->m_session, start, end); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfSetComposingText: { + getparg(spannable_string_t*, text); + getarg(int32_t, new_cursor_position); + int32_t ret = onSetComposingText(imfEvent->m_session, text, new_cursor_position); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + + case ImfSetSelection: { + getarg(int32_t, start); + getarg(int32_t, end); + int32_t ret = onSetSelection(imfEvent->m_session, start, end); + imfEvent->m_result->setResult(QVariant::fromValue(ret)); + break; + } + }; //switch + + return true; + } else { + // standard event processing + return QObject::eventFilter(obj, event); + } +} + +bool QBBInputContext::filterEvent( const QEvent *event ) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << event; +#endif + switch (event->type()) { + case QEvent::CloseSoftwareInputPanel: { + return dispatchCloseSoftwareInputPanel(); + } + case QEvent::RequestSoftwareInputPanel: { + return dispatchRequestSoftwareInputPanel(); + } + default: + return false; + } +} + +void QBBInputContext::reset() +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + endComposition(); +} + +void QBBInputContext::update(Qt::InputMethodQueries queries) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + reset(); + + QPlatformInputContext::update(queries); +} + +void QBBInputContext::closeSession() +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO +#endif + if (!imfAvailable()) + return; + + if (sInputSession) { + p_ictrl_close_session((input_session_t *)sInputSession); + sInputSession = 0; + } +} + +void QBBInputContext::openSession() +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO +#endif + if (!imfAvailable()) + return; + + closeSession(); + sInputSession = p_ictrl_open_session(&ic_funcs); +} + +bool QBBInputContext::hasSession() +{ + return sInputSession != 0; +} + +bool QBBInputContext::hasSelectedText() +{ + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!input) + return false; + + QInputMethodQueryEvent query(Qt::ImCurrentSelection); + QCoreApplication::sendEvent(input, &query); + + return !query.value(Qt::ImCurrentSelection).toString().isEmpty(); +} + +bool QBBInputContext::dispatchRequestSoftwareInputPanel() +{ + QBBVirtualKeyboard::instance().showKeyboard(); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << "QBB: requesting virtual keyboard"; +#endif + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return true; + + if (!hasSession()) + openSession(); + + // This also means that the caret position has moved + QInputMethodQueryEvent query(Qt::ImCursorPosition); + QCoreApplication::sendEvent(input, &query); + int caretPos = query.value(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 = m_lastCaretPos; + m_lastCaretPos = caretEvent.new_pos = caretPos; + p_ictrl_dispatch_event((event_t *)&caretEvent); + return true; +} + +bool QBBInputContext::dispatchCloseSoftwareInputPanel() +{ + QBBVirtualKeyboard::instance().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; +} + +/** + * IMF Event Dispatchers. + */ +bool QBBInputContext::dispatchFocusEvent(FocusEventId id, int hints) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!sInputSession) { + qWarning() << Q_FUNC_INFO << "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. + m_lastCaretPos = 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; +} + +bool QBBInputContext::handleKeyboardEvent(int flags, int sym, int mod, int scan, int cap) +{ + 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() << Q_FUNC_INFO << "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() << Q_FUNC_INFO << "dispatch key event " << key; +#endif + } + + scan = 0; + return true; +} + +void QBBInputContext::endComposition() +{ + if (!m_isComposing) + return; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return; + + QList<QInputMethodEvent::Attribute> attributes; + QInputMethodEvent event(QLatin1String(""), attributes); + event.setCommitString(m_composingText); + m_composingText = QString(); + m_isComposing = false; + QCoreApplication::sendEvent(input, &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); +} + +void QBBInputContext::setComposingText(QString const& composingText) +{ + m_composingText = composingText; + m_isComposing = true; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return; + + QList<QInputMethodEvent::Attribute> attributes; + QTextCharFormat format; + format.setFontUnderline(true); + attributes.push_back(QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat, 0, composingText.length(), format)); + + QInputMethodEvent event(composingText, attributes); + + QCoreApplication::sendEvent(input, &event); +} + +int32_t QBBInputContext::processEvent(event_t *event) +{ + int32_t result = -1; + switch (event->event_type) { + case EVENT_SPELL_CHECK: { + #if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "EVENT_SPELL_CHECK"; + #endif + result = 0; + break; + } + + case EVENT_NAVIGATION: { + #if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "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() << Q_FUNC_INFO << "EVENT_KEY"; + #endif + key_event_t *kevent = static_cast<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() << Q_FUNC_INFO << "Unsupported event type: " << event->event_type; + break; + default: + qCritical() << Q_FUNC_INFO << "Unknown event type: " << event->event_type; + } + return result; +} + +/** + * IMF Event Handlers + */ + +int32_t QBBInputContext::onBeginBatchEdit(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + // We don't care. + return 0; +} + +int32_t QBBInputContext::onClearMetaKeyStates(input_session_t *ic, int32_t states) +{ + Q_UNUSED(states); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + // Should never get called. + qCritical() << Q_FUNC_INFO << "onClearMetaKeyStates is unsupported."; + return 0; +} + +int32_t QBBInputContext::onCommitText(input_session_t *ic, spannable_string_t *text, int32_t new_cursor_position) +{ + 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; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return 0; + + QString commitString = QString::fromWCharArray(text->str, text->length); + +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "Committing [" << commitString << "]"; +#endif + + QList<QInputMethodEvent::Attribute> attributes; + QInputMethodEvent event(QLatin1String(""), attributes); + event.setCommitString(commitString, 0, 0); + + QCoreApplication::sendEvent(input, &event); + m_composingText = QString(); + + return 0; +} + +int32_t QBBInputContext::onDeleteSurroundingText(input_session_t *ic, int32_t left_length, int32_t right_length) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "L:" << left_length << " R:" << right_length; +#endif + + if (!isSessionOkay(ic)) + return 0; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + 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); + QCoreApplication::sendEvent(input, &event); + + return 0; +} + +int32_t QBBInputContext::onEndBatchEdit(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + return 0; +} + +int32_t QBBInputContext::onFinishComposingText(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + 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(m_composingText); + m_composingText = QString(); + m_isComposing = false; + QCoreApplication::sendEvent(input, &event); + + return 0; +} + +int32_t QBBInputContext::onGetCursorCapsMode(input_session_t *ic, int32_t req_modes) +{ + Q_UNUSED(req_modes); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + // Should never get called. + qCritical() << Q_FUNC_INFO << "onGetCursorCapsMode is unsupported."; + + return 0; +} + +int32_t QBBInputContext::onGetCursorPosition(input_session_t *ic) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return 0; + + QInputMethodQueryEvent query(Qt::ImCursorPosition); + QCoreApplication::sendEvent(input, &query); + m_lastCaretPos = query.value(Qt::ImCursorPosition).toInt(); + + return m_lastCaretPos; +} + +extracted_text_t *QBBInputContext::onGetExtractedText(input_session_t *ic, extracted_text_request_t *request, int32_t flags) +{ + Q_UNUSED(flags); + Q_UNUSED(request); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) { + extracted_text_t *et = (extracted_text_t *)calloc(sizeof(extracted_text_t),1); + et->text = reinterpret_cast<spannable_string_t *>(calloc(sizeof(spannable_string_t),1)); + return et; + } + + // Used to update dictionaries, but not supported right now. + extracted_text_t *et = (extracted_text_t *)calloc(sizeof(extracted_text_t),1); + et->text = reinterpret_cast<spannable_string_t *>(calloc(sizeof(spannable_string_t),1)); + + return et; +} + +spannable_string_t *QBBInputContext::onGetSelectedText(input_session_t *ic, int32_t flags) +{ + Q_UNUSED(flags); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return toSpannableString(""); + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return 0; + + QInputMethodQueryEvent query(Qt::ImCurrentSelection); + QCoreApplication::sendEvent(input, &query); + QString text = query.value(Qt::ImCurrentSelection).toString(); + + return toSpannableString(text); +} + +spannable_string_t *QBBInputContext::onGetTextAfterCursor(input_session_t *ic, int32_t n, int32_t flags) +{ + Q_UNUSED(flags); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return toSpannableString(""); + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return toSpannableString(""); + + QInputMethodQueryEvent query(Qt::ImCursorPosition | Qt::ImSurroundingText); + QCoreApplication::sendEvent(input, &query); + QString text = query.value(Qt::ImSurroundingText).toString(); + m_lastCaretPos = query.value(Qt::ImCursorPosition).toInt(); + + return toSpannableString(text.mid(m_lastCaretPos+1, n)); +} + +spannable_string_t *QBBInputContext::onGetTextBeforeCursor(input_session_t *ic, int32_t n, int32_t flags) +{ + Q_UNUSED(flags); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return toSpannableString(""); + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return toSpannableString(""); + + QInputMethodQueryEvent query(Qt::ImCursorPosition | Qt::ImSurroundingText); + QCoreApplication::sendEvent(input, &query); + QString text = query.value(Qt::ImSurroundingText).toString(); + m_lastCaretPos = query.value(Qt::ImCursorPosition).toInt(); + + if (n < m_lastCaretPos) { + return toSpannableString(text.mid(m_lastCaretPos - n, n)); + } else { + return toSpannableString(text.mid(0, m_lastCaretPos)); + } +} + +int32_t QBBInputContext::onPerformEditorAction(input_session_t *ic, int32_t editor_action) +{ + Q_UNUSED(editor_action); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + // Should never get called. + qCritical() << Q_FUNC_INFO << "onPerformEditorAction is unsupported."; + + return 0; +} + +int32_t QBBInputContext::onReportFullscreenMode(input_session_t *ic, int32_t enabled) +{ + Q_UNUSED(enabled); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + // Should never get called. + qCritical() << Q_FUNC_INFO << "onReportFullscreenMode is unsupported."; + + return 0; +} + +int32_t QBBInputContext::onSendEvent(input_session_t *ic, event_t *event) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + return processEvent(event); +} + +int32_t QBBInputContext::onSendAsyncEvent(input_session_t *ic, event_t *event) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + return processEvent(event); +} + +int32_t QBBInputContext::onSetComposingRegion(input_session_t *ic, int32_t start, int32_t end) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return 0; + + QInputMethodQueryEvent query(Qt::ImCursorPosition | Qt::ImSurroundingText); + QCoreApplication::sendEvent(input, &query); + QString text = query.value(Qt::ImSurroundingText).toString(); + m_lastCaretPos = query.value(Qt::ImCursorPosition).toInt(); + + QString empty = QString::fromLatin1(""); + text = text.mid(start, end - start); + + // Delete the current text. + QList<QInputMethodEvent::Attribute> attributes; + QInputMethodEvent event(empty, attributes); + event.setCommitString(empty, start - m_lastCaretPos, end - start); + QCoreApplication::sendEvent(input, &event); + + // Move the specified text into a preedit string. + setComposingText(text); + + return 0; +} + +int32_t QBBInputContext::onSetComposingText(input_session_t *ic, spannable_string_t *text, int32_t new_cursor_position) +{ + Q_UNUSED(new_cursor_position); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + QInputPanel *panel = qApp->inputPanel(); + QObject *input = panel->inputItem(); + if (!imfAvailable() || !input) + return 0; + + m_isComposing = true; + + QString preeditString = QString::fromWCharArray(text->str, text->length); + setComposingText(preeditString); + + return 0; +} + +int32_t QBBInputContext::onSetSelection(input_session_t *ic, int32_t start, int32_t end) +{ + Q_UNUSED(start); + Q_UNUSED(end); +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + + if (!isSessionOkay(ic)) + return 0; + + // Should never get called. + qCritical() << Q_FUNC_INFO << "onSetSelection is unsupported."; + + return 0; +} + +void QBBInputContext::showInputPanel() +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + dispatchRequestSoftwareInputPanel(); +} + +void QBBInputContext::hideInputPanel() +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO; +#endif + dispatchCloseSoftwareInputPanel(); +} + +bool QBBInputContext::isInputPanelVisible() const +{ + return m_inputPanelVisible; +} + +QLocale QBBInputContext::locale() const +{ + return m_inputPanelLocale; +} + +void QBBInputContext::keyboardVisibilityChanged(bool visible) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "visible=" << visible; +#endif + if (m_inputPanelVisible != visible) { + m_inputPanelVisible = visible; + emitInputPanelVisibleChanged(); + } +} + +void QBBInputContext::keyboardLocaleChanged(const QLocale &locale) +{ +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "locale=" << locale; +#endif + if (m_inputPanelLocale != locale) { + m_inputPanelLocale = locale; + emitLocaleChanged(); + } +} + +void QBBInputContext::inputItemChanged() +{ + QInputMethod *inputMethod = qApp->inputMethod(); + QObject *inputItem = inputMethod->inputItem(); + +#if defined(QBBINPUTCONTEXT_DEBUG) + qDebug() << Q_FUNC_INFO << "input item=" << inputItem; +#endif + + if (!inputItem) { + if (m_inputPanelVisible) + hideInputPanel(); + } else { + if (qobject_cast<QAbstractSpinBox*>(inputItem)) { + QBBVirtualKeyboard::instance().setKeyboardMode(QBBVirtualKeyboard::NumPunc); + } else { + QBBVirtualKeyboard::instance().setKeyboardMode(QBBVirtualKeyboard::Default); + } + if (!m_inputPanelVisible) + showInputPanel(); + } +} |