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#include "qqmlandroidscrollview_p.h"
#include "qtqmlandroidfunctions_p.h"
QT_BEGIN_NAMESPACE
QQmlAndroidScrollView::QQmlAndroidScrollView(QQmlAndroidView *parent) :
QQmlAndroidFrameLayout(parent)
{
}
int QQmlAndroidScrollView::scrollX() const
{
if (m_scrollX.isNull())
return 0;
return m_scrollX;
}
void QQmlAndroidScrollView::setScrollX(int x)
{
if (updateScrollX(x))
QtQmlAndroid::callIntMethod(instance(), "setScrollX", x);
}
bool QQmlAndroidScrollView::updateScrollX(int x)
{
if (m_scrollX.isNull() || m_scrollX != x) {
m_scrollX = x;
emit scrollXChanged();
}
return false;
}
int QQmlAndroidScrollView::scrollY() const
{
if (m_scrollY.isNull())
return 0;
return m_scrollY;
}
void QQmlAndroidScrollView::setScrollY(int y)
{
if (updateScrollY(y))
QtQmlAndroid::callIntMethod(instance(), "setScrollY", y);
}
bool QQmlAndroidScrollView::updateScrollY(int y)
{
if (m_scrollY.isNull() || m_scrollY != y) {
m_scrollY = y;
emit scrollYChanged();
}
return false;
}
QAndroidJniObject QQmlAndroidScrollView::onCreate()
{
return QAndroidJniObject("qt/android/widget/QtScrollView",
"(Landroid/content/Context;J)V",
ctx().object(),
reinterpret_cast<jlong>(this));
}
void QQmlAndroidScrollView::onInflate(QAndroidJniObject &instance)
{
QQmlAndroidFrameLayout::onInflate(instance);
static bool nativeMethodsRegistered = false;
if (!nativeMethodsRegistered) {
onRegisterNativeMethods(instance.object());
nativeMethodsRegistered = true;
}
}
void QQmlAndroidScrollView::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 QQmlAndroidScrollView::onScrollChanged(JNIEnv *env, jobject object, jlong instance, jint left, jint top)
{
Q_UNUSED(env);
Q_UNUSED(object);
QQmlAndroidScrollView *view = reinterpret_cast<QQmlAndroidScrollView *>(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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