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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt QML Android module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qnativeandroidscrollview_p.h"
#include "qnativeandroidframelayout_p_p.h"
#include "qtnativeandroidfunctions_p.h"
#include "qnativeandroidoptional_p.h"
QT_BEGIN_NAMESPACE
class QNativeAndroidScrollViewPrivate : public QNativeAndroidFrameLayoutPrivate
{
public:
QNativeAndroidOptional<int> scrollX;
QNativeAndroidOptional<int> scrollY;
};
QNativeAndroidScrollView::QNativeAndroidScrollView(QNativeAndroidContext *context)
: QNativeAndroidFrameLayout(*(new QNativeAndroidScrollViewPrivate), context)
{
}
int QNativeAndroidScrollView::scrollX() const
{
Q_D(const QNativeAndroidScrollView);
if (d->scrollX.isNull())
return 0;
return d->scrollX;
}
void QNativeAndroidScrollView::setScrollX(int x)
{
if (updateScrollX(x))
QtNativeAndroid::callIntMethod(instance(), "setScrollX", x);
}
bool QNativeAndroidScrollView::updateScrollX(int x)
{
Q_D(QNativeAndroidScrollView);
if (d->scrollX.isNull() || d->scrollX != x) {
d->scrollX = x;
emit scrollXChanged();
}
return false;
}
int QNativeAndroidScrollView::scrollY() const
{
Q_D(const QNativeAndroidScrollView);
if (d->scrollY.isNull())
return 0;
return d->scrollY;
}
void QNativeAndroidScrollView::setScrollY(int y)
{
if (updateScrollY(y))
QtNativeAndroid::callIntMethod(instance(), "setScrollY", y);
}
bool QNativeAndroidScrollView::updateScrollY(int y)
{
Q_D(QNativeAndroidScrollView);
if (d->scrollY.isNull() || d->scrollY != y) {
d->scrollY = y;
emit scrollYChanged();
}
return false;
}
QAndroidJniObject QNativeAndroidScrollView::onCreate()
{
return QAndroidJniObject("org/qtproject/qt5/android/bindings/widget/QtNativeScrollView",
"(Landroid/content/Context;J)V",
ctx().object(),
reinterpret_cast<jlong>(this));
}
void QNativeAndroidScrollView::onInflate(QAndroidJniObject &instance)
{
QNativeAndroidFrameLayout::onInflate(instance);
static bool nativeMethodsRegistered = false;
if (!nativeMethodsRegistered) {
onRegisterNativeMethods(instance.object());
nativeMethodsRegistered = true;
}
}
void QNativeAndroidScrollView::onRegisterNativeMethods(jobject listener)
{
JNINativeMethod methods[] {{"onScrollChanged", "(JII)V", reinterpret_cast<void *>(onScrollChanged)}};
QAndroidJniEnvironment env;
jclass cls = env->GetObjectClass(listener);
env->RegisterNatives(cls, methods, sizeof(methods) / sizeof(methods[0]));
env->DeleteLocalRef(cls);
}
void QNativeAndroidScrollView::onScrollChanged(JNIEnv *env, jobject object, jlong instance, jint left, jint top)
{
Q_UNUSED(env);
Q_UNUSED(object);
QNativeAndroidScrollView *view = reinterpret_cast<QNativeAndroidScrollView *>(instance);
if (view) {
QMetaObject::invokeMethod(view, "updateScrollX", Qt::QueuedConnection, Q_ARG(int, left));
QMetaObject::invokeMethod(view, "updateScrollY", Qt::QueuedConnection, Q_ARG(int, top));
}
}
QT_END_NAMESPACE
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