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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtVirtualKeyboard/private/platforminputcontext_p.h>
#include <QtVirtualKeyboard/qvirtualkeyboardinputcontext.h>
#include <QtVirtualKeyboard/private/qvirtualkeyboardinputcontext_p.h>
#include <QtVirtualKeyboard/private/shadowinputcontext_p.h>
#include <QtVirtualKeyboard/private/abstractinputpanel_p.h>
#ifdef QT_VIRTUALKEYBOARD_DESKTOP
#include <QtVirtualKeyboard/private/desktopinputpanel_p.h>
#endif
#include <QtVirtualKeyboard/private/appinputpanel_p.h>
#include <QtVirtualKeyboard/private/virtualkeyboarddebug_p.h>
#include <QWindow>
#include <QGuiApplication>
QT_BEGIN_NAMESPACE
namespace QtVirtualKeyboard {
Q_LOGGING_CATEGORY(qlcVirtualKeyboard, "qt.virtualkeyboard")
static const char disableDesktopEnvVarName[] = "QT_VIRTUALKEYBOARD_DESKTOP_DISABLE";
/*!
\class QtVirtualKeyboard::PlatformInputContext
\internal
*/
PlatformInputContext::PlatformInputContext() :
m_inputContext(nullptr),
m_inputPanel(nullptr),
m_focusObject(nullptr),
m_locale(),
m_inputDirection(m_locale.textDirection()),
m_filterEvent(nullptr),
m_visible(false),
m_desktopModeDisabled(false)
{
if (!qEnvironmentVariableIsEmpty(disableDesktopEnvVarName)) {
bool ok;
int desktopModeDisabled = qgetenv(disableDesktopEnvVarName).toInt(&ok);
m_desktopModeDisabled = ok && desktopModeDisabled != 0;
}
}
PlatformInputContext::~PlatformInputContext()
{
}
bool PlatformInputContext::isValid() const
{
return true;
}
void PlatformInputContext::reset()
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::reset()";
if (m_inputContext)
m_inputContext->priv()->reset();
}
void PlatformInputContext::commit()
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::commit()";
if (m_inputContext)
m_inputContext->priv()->commit();
}
void PlatformInputContext::update(Qt::InputMethodQueries queries)
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::update():" << queries;
const bool enabled = inputMethodAccepted();
#ifdef QT_VIRTUALKEYBOARD_DESKTOP
if (enabled && !m_inputPanel && !m_desktopModeDisabled) {
m_inputPanel = new DesktopInputPanel(this);
m_inputPanel->createView();
if (m_inputContext) {
m_selectionControl = new DesktopInputSelectionControl(this, m_inputContext);
m_selectionControl->createHandles();
if (QObject *inputPanel = m_inputContext->priv()->inputPanel)
inputPanel->setProperty("desktopPanel", true);
}
}
#endif
if (m_inputContext) {
if (enabled)
m_inputContext->priv()->update(queries);
m_inputContext->priv()->setFocus(enabled);
updateInputPanelVisible();
}
}
void PlatformInputContext::invokeAction(QInputMethod::Action action, int cursorPosition)
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::invokeAction():" << action << cursorPosition;
if (m_inputContext)
m_inputContext->priv()->invokeAction(action, cursorPosition);
}
QRectF PlatformInputContext::keyboardRect() const
{
return m_inputContext ? m_inputContext->priv()->keyboardRectangle() : QRectF();
}
bool PlatformInputContext::isAnimating() const
{
return m_inputContext ? m_inputContext->isAnimating() : false;
}
void PlatformInputContext::showInputPanel()
{
if (!m_visible) {
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::showInputPanel()";
m_visible = true;
}
updateInputPanelVisible();
}
void PlatformInputContext::hideInputPanel()
{
if (m_visible) {
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::hideInputPanel()";
m_visible = false;
}
updateInputPanelVisible();
}
bool PlatformInputContext::isInputPanelVisible() const
{
return m_inputPanel ? m_inputPanel->isVisible() : false;
}
QLocale PlatformInputContext::locale() const
{
return m_locale;
}
void PlatformInputContext::setLocale(QLocale locale)
{
if (m_locale != locale) {
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::setLocale():" << locale;
m_locale = locale;
emitLocaleChanged();
}
}
Qt::LayoutDirection PlatformInputContext::inputDirection() const
{
return m_inputDirection;
}
void PlatformInputContext::setInputDirection(Qt::LayoutDirection direction)
{
if (m_inputDirection != direction) {
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::setInputDirection():" << direction;
m_inputDirection = direction;
emitInputDirectionChanged(m_inputDirection);
}
}
QObject *PlatformInputContext::focusObject()
{
return m_focusObject;
}
void PlatformInputContext::setFocusObject(QObject *object)
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::setFocusObject():" << object;
Q_ASSERT(m_inputContext == nullptr ||
m_inputContext->priv()->shadow()->inputItem() == nullptr ||
m_inputContext->priv()->shadow()->inputItem() != object);
QScopedPointer<QVirtualKeyboardScopedState> setFocusState;
if (m_inputContext)
setFocusState.reset(new QVirtualKeyboardScopedState(m_inputContext->priv(), QVirtualKeyboardInputContextPrivate::State::SetFocus));
if (m_focusObject != object) {
if (m_focusObject)
m_focusObject->removeEventFilter(this);
m_focusObject = object;
if (m_focusObject)
m_focusObject->installEventFilter(this);
emit focusObjectChanged();
}
update(Qt::ImQueryAll);
}
QVirtualKeyboardInputContext *PlatformInputContext::inputContext() const
{
return m_inputContext;
}
bool PlatformInputContext::eventFilter(QObject *object, QEvent *event)
{
if (event != m_filterEvent && object == m_focusObject && m_inputContext)
return m_inputContext->priv()->filterEvent(event);
return false;
}
void PlatformInputContext::sendEvent(QEvent *event)
{
if (m_focusObject) {
m_filterEvent = event;
QGuiApplication::sendEvent(m_focusObject, event);
m_filterEvent = nullptr;
}
}
void PlatformInputContext::sendKeyEvent(QKeyEvent *event)
{
const QGuiApplication *app = qApp;
QWindow *focusWindow = nullptr;
if (app) {
if (QT_VIRTUALKEYBOARD_FORCE_EVENTS_WITHOUT_FOCUS) {
if (!app->allWindows().isEmpty()) {
focusWindow = app->allWindows().first();
}
}
else {
focusWindow = app->focusWindow();
}
}
if (focusWindow) {
m_filterEvent = event;
QGuiApplication::sendEvent(focusWindow, event);
m_filterEvent = nullptr;
}
}
QVariant PlatformInputContext::inputMethodQuery(Qt::InputMethodQuery query)
{
QInputMethodQueryEvent event(query);
sendEvent(&event);
return event.value(query);
}
void PlatformInputContext::setInputContext(QVirtualKeyboardInputContext *context)
{
if (m_inputContext) {
disconnect(this, SLOT(keyboardRectangleChanged()));
}
m_inputContext = context;
if (m_inputContext) {
if (!m_inputPanel)
m_inputPanel = new AppInputPanel(this);
QObject::connect(m_inputContext->priv(), &QVirtualKeyboardInputContextPrivate::keyboardRectangleChanged, this, &PlatformInputContext::keyboardRectangleChanged);
} else if (m_inputPanel) {
m_inputPanel = nullptr;
}
}
bool PlatformInputContext::evaluateInputPanelVisible() const
{
// Show input panel when input panel is requested by showInputPanel()
// and focus object is set to an input control with input method accepted (Qt::ImEnabled)
// or input events without focus are enabled.
return m_visible &&
((m_focusObject && inputMethodAccepted()) ||
QT_VIRTUALKEYBOARD_FORCE_EVENTS_WITHOUT_FOCUS);
}
void PlatformInputContext::keyboardRectangleChanged()
{
m_inputPanel->setInputRect(m_inputContext->priv()->keyboardRectangle().toRect());
}
void PlatformInputContext::updateInputPanelVisible()
{
if (!m_inputPanel)
return;
const bool visible = evaluateInputPanelVisible();
if (visible != m_inputPanel->isVisible()) {
if (visible)
m_inputPanel->show();
else
m_inputPanel->hide();
if (m_selectionControl) {
m_selectionControl->setEnabled(visible);
m_inputContext->priv()->updateSelectionControlVisible(visible);
}
emitInputPanelVisibleChanged();
}
}
} // namespace QtVirtualKeyboard
QT_END_NAMESPACE
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