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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "platforminputcontext.h"
#include "inputcontext.h"
#include "shadowinputcontext.h"
#include "abstractinputpanel.h"
#ifdef QT_VIRTUALKEYBOARD_DESKTOP
#include "desktopinputpanel.h"
#endif
#include "appinputpanel.h"
#include "virtualkeyboarddebug.h"
#include <QWindow>
#include <QGuiApplication>
namespace QtVirtualKeyboard {
/*!
\class QtVirtualKeyboard::PlatformInputContext
\internal
*/
PlatformInputContext::PlatformInputContext() :
m_inputContext(0),
m_inputPanel(0),
m_focusObject(0),
m_locale(),
m_inputDirection(m_locale.textDirection()),
m_filterEvent(0),
m_visible(false)
{
}
PlatformInputContext::~PlatformInputContext()
{
}
bool PlatformInputContext::isValid() const
{
return true;
}
void PlatformInputContext::reset()
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::reset()";
if (m_inputContext)
m_inputContext->reset();
}
void PlatformInputContext::commit()
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::commit()";
if (m_inputContext)
m_inputContext->externalCommit();
}
void PlatformInputContext::update(Qt::InputMethodQueries queries)
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::update():" << queries;
bool enabled = inputMethodQuery(Qt::ImEnabled).toBool();
#ifdef QT_VIRTUALKEYBOARD_DESKTOP
if (enabled && !m_inputPanel) {
m_inputPanel = new DesktopInputPanel(this);
m_inputPanel->createView();
m_selectionControl = new DesktopInputSelectionControl(this, m_inputContext);
m_selectionControl->createHandles();
}
#endif
if (m_inputContext) {
if (enabled) {
m_inputContext->update(queries);
if (m_visible)
updateInputPanelVisible();
} else {
hideInputPanel();
}
m_inputContext->setFocus(enabled);
}
}
void PlatformInputContext::invokeAction(QInputMethod::Action action, int cursorPosition)
{
VIRTUALKEYBOARD_DEBUG() << "PlatformInputContext::invokeAction():" << action << cursorPosition;
if (m_inputContext)
m_inputContext->invokeAction(action, cursorPosition);
}
QRectF PlatformInputContext::keyboardRect() const
{
return m_inputContext ? m_inputContext->keyboardRectangle() : QRectF();
}
bool PlatformInputContext::isAnimating() const
{
return m_inputContext ? m_inputContext->animating() : 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 == 0 ||
m_inputContext->shadow()->inputItem() == 0 ||
m_inputContext->shadow()->inputItem() != object);
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);
}
InputContext *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->filterEvent(event);
return false;
}
void PlatformInputContext::sendEvent(QEvent *event)
{
if (m_focusObject) {
m_filterEvent = event;
QGuiApplication::sendEvent(m_focusObject, event);
m_filterEvent = 0;
}
}
void PlatformInputContext::sendKeyEvent(QKeyEvent *event)
{
const QGuiApplication *app = qApp;
QWindow *focusWindow = app ? app->focusWindow() : 0;
if (focusWindow) {
m_filterEvent = event;
QGuiApplication::sendEvent(focusWindow, event);
m_filterEvent = 0;
}
}
QVariant PlatformInputContext::inputMethodQuery(Qt::InputMethodQuery query)
{
QInputMethodQueryEvent event(query);
sendEvent(&event);
return event.value(query);
}
void PlatformInputContext::setInputContext(InputContext *context)
{
if (m_inputContext) {
disconnect(this, SLOT(keyboardRectangleChanged()));
}
m_inputContext = context;
if (m_inputContext) {
if (!m_inputPanel)
m_inputPanel = new AppInputPanel(this);
connect(m_inputContext, SIGNAL(keyboardRectangleChanged()), SLOT(keyboardRectangleChanged()));
} else if (m_inputPanel) {
m_inputPanel = 0;
}
}
void PlatformInputContext::keyboardRectangleChanged()
{
m_inputPanel->setInputRect(m_inputContext->keyboardRectangle().toRect());
}
void PlatformInputContext::updateInputPanelVisible()
{
if (!m_inputPanel)
return;
if (m_visible != m_inputPanel->isVisible()) {
if (m_visible)
m_inputPanel->show();
else
m_inputPanel->hide();
if (m_selectionControl)
m_selectionControl->setEnabled(m_visible);
emitInputPanelVisibleChanged();
}
}
} // namespace QtVirtualKeyboard
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