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JUCE/modules/juce_events/native/juce_android_Messaging.cpp

116 lines
3.7 KiB
C++

/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-11 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online at www.gnu.org/licenses.
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
void MessageManager::doPlatformSpecificInitialisation() {}
void MessageManager::doPlatformSpecificShutdown() {}
//==============================================================================
bool MessageManager::dispatchNextMessageOnSystemQueue (const bool returnIfNoPendingMessages)
{
Logger::outputDebugString ("*** Modal loops are not possible in Android!! Exiting...");
exit (1);
return true;
}
//==============================================================================
bool MessageManager::postMessageToSystemQueue (Message* message)
{
message->incReferenceCount();
getEnv()->CallVoidMethod (android.activity, JuceAppActivity.postMessage, (jlong) (pointer_sized_uint) message);
return true;
}
JUCE_JNI_CALLBACK (JUCE_ANDROID_ACTIVITY_CLASSNAME, deliverMessage, void, (jobject activity, jlong value))
{
Message* const message = (Message*) (pointer_sized_uint) value;
MessageManager::getInstance()->deliverMessage (message);
message->decReferenceCount();
}
//==============================================================================
class AsyncFunctionCaller : public AsyncUpdater
{
public:
static void* call (MessageCallbackFunction* func_, void* parameter_)
{
if (MessageManager::getInstance()->isThisTheMessageThread())
return func_ (parameter_);
AsyncFunctionCaller caller (func_, parameter_);
caller.triggerAsyncUpdate();
caller.finished.wait();
return caller.result;
}
void handleAsyncUpdate()
{
result = (*func) (parameter);
finished.signal();
}
private:
WaitableEvent finished;
MessageCallbackFunction* func;
void* parameter;
void* volatile result;
AsyncFunctionCaller (MessageCallbackFunction* func_, void* parameter_)
: result (nullptr), func (func_), parameter (parameter_)
{}
JUCE_DECLARE_NON_COPYABLE (AsyncFunctionCaller);
};
void* MessageManager::callFunctionOnMessageThread (MessageCallbackFunction* func, void* parameter)
{
return AsyncFunctionCaller::call (func, parameter);
}
//==============================================================================
void MessageManager::broadcastMessage (const String&)
{
}
void MessageManager::runDispatchLoop()
{
}
class QuitCallback : public CallbackMessage
{
public:
QuitCallback() {}
void messageCallback()
{
android.activity.callVoidMethod (JuceAppActivity.finish);
}
};
void MessageManager::stopDispatchLoop()
{
(new QuitCallback())->post();
quitMessagePosted = true;
}