| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 BogDan Vatra <bogdan@kde.org> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #include "qandroidbinder.h" |
| |
| #include "qandroidbinder_p.h" |
| #include "qandroidparcel.h" |
| #include "qandroidparcel_p.h" |
| |
| #include <jni/qandroidjnienvironment.h> |
| |
| QT_BEGIN_NAMESPACE |
| QAndroidBinderPrivate::QAndroidBinderPrivate(QAndroidBinder *binder) |
| : handle("org/qtproject/qt5/android/extras/QtAndroidBinder", "(J)V", jlong(binder)) |
| , m_isQtAndroidBinder(true) |
| { |
| QAndroidJniExceptionCleaner cleaner; |
| } |
| |
| QAndroidBinderPrivate::QAndroidBinderPrivate(const QAndroidJniObject &binder) |
| : handle(binder) |
| , m_isQtAndroidBinder(false) |
| { |
| } |
| |
| QAndroidBinderPrivate::~QAndroidBinderPrivate() |
| { |
| if (m_isQtAndroidBinder) { |
| QAndroidJniExceptionCleaner cleaner; |
| handle.callMethod<void>("setId", "(J)V", jlong(0)); |
| if (m_deleteListener) |
| m_deleteListener(); |
| } |
| } |
| |
| /*! |
| \class QAndroidBinder |
| \inmodule QtAndroidExtras |
| \brief Wraps the most important methods of Android Binder class. |
| |
| The QAndroidBinder is a convenience class that wraps the most important |
| \l {https://developer.android.com/reference/android/os/Binder.html}{Android Binder} |
| methods. |
| |
| \since 5.10 |
| */ |
| |
| |
| /*! |
| \enum QAndroidBinder::CallType |
| |
| This enum is used with \l QAndroidBinder::transact() to describe the mode in which the |
| IPC call is performed. |
| |
| \value Normal normal IPC, meaning that the caller waits the result from the callee |
| \value OneWay one-way IPC, meaning that the caller returns immediately, without waiting for a result from the callee |
| */ |
| |
| /*! |
| Creates a new object which can be used to perform IPC. |
| |
| \sa onTransact, transact |
| */ |
| QAndroidBinder::QAndroidBinder() |
| : d(new QAndroidBinderPrivate(this)) |
| { |
| } |
| |
| /*! |
| Creates a new object from the \a binder Java object. |
| |
| \sa transact |
| */ |
| QAndroidBinder::QAndroidBinder(const QAndroidJniObject &binder) |
| : d(new QAndroidBinderPrivate(binder)) |
| { |
| } |
| |
| QAndroidBinder::~QAndroidBinder() |
| { |
| } |
| |
| /*! |
| Default implementation is a stub that returns false. |
| The user should override this method to get the transact data from the caller. |
| |
| The \a code is the action to perform. |
| The \a data is the marshaled data sent by the caller.\br |
| The \a reply is the marshaled data to be sent to the caller.\br |
| The \a flags are the additional operation flags.\br |
| |
| \warning This method is called from Binder's thread which is different |
| from the thread that this object was created. |
| |
| \sa transact |
| */ |
| bool QAndroidBinder::onTransact(int /*code*/, const QAndroidParcel &/*data*/, const QAndroidParcel &/*reply*/, CallType /*flags*/) |
| { |
| return false; |
| } |
| |
| /*! |
| Performs an IPC call |
| |
| The \a code is the action to perform. Should be between |
| \l {https://developer.android.com/reference/android/os/IBinder.html#FIRST_CALL_TRANSACTION} |
| {FIRST_CALL_TRANSACTION} and |
| \l {https://developer.android.com/reference/android/os/IBinder.html#LAST_CALL_TRANSACTION} |
| {LAST_CALL_TRANSACTION}.\br |
| The \a data is the marshaled data to send to the target.\br |
| The \a reply (if specified) is the marshaled data to be received from the target. |
| May be \b nullptr if you are not interested in the return value.\br |
| The \a flags are the additional operation flags.\br |
| |
| \return true on success |
| */ |
| bool QAndroidBinder::transact(int code, const QAndroidParcel &data, QAndroidParcel *reply, CallType flags) const |
| { |
| QAndroidJniExceptionCleaner cleaner; |
| return d->handle.callMethod<jboolean>("transact", "(ILandroid/os/Parcel;Landroid/os/Parcel;I)Z", |
| jint(code), data.d->handle.object(), reply ? reply->d->handle.object() : nullptr, jint(flags)); |
| } |
| |
| /*! |
| The return value is useful to call other Java API which are not covered by this wrapper |
| */ |
| QAndroidJniObject QAndroidBinder::handle() const |
| { |
| return d->handle; |
| } |
| |
| QT_END_NAMESPACE |