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widget/android/AndroidJNIWrapper.cpp@b8a032363ba2 (annotated)

widget/android/AndroidJNIWrapper.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
michael@0	2	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#include <android/log.h>
michael@0	7	#include <dlfcn.h>
michael@0	8	#include <prthread.h>
michael@0	9
michael@0	10	#include "mozilla/DebugOnly.h"
michael@0	11	#include "mozilla/Assertions.h"
michael@0	12	#include "nsThreadUtils.h"
michael@0	13	#include "AndroidBridge.h"
michael@0	14
michael@0	15	extern "C" {
michael@0	16	jclass __jsjni_GetGlobalClassRef(const char *className);
michael@0	17	}
michael@0	18
michael@0	19	class GetGlobalClassRefRunnable : public nsRunnable {
michael@0	20	public:
michael@0	21	GetGlobalClassRefRunnable(const char *className, jclass *foundClass) :
michael@0	22	mClassName(className), mResult(foundClass) {}
michael@0	23	NS_IMETHOD Run() {
michael@0	24	*mResult = __jsjni_GetGlobalClassRef(mClassName);
michael@0	25	return NS_OK;
michael@0	26	}
michael@0	27	private:
michael@0	28	const char *mClassName;
michael@0	29	jclass *mResult;
michael@0	30	};
michael@0	31
michael@0	32	extern "C" {
michael@0	33	__attribute__ ((visibility("default")))
michael@0	34	jclass
michael@0	35	jsjni_FindClass(const char *className) {
michael@0	36	// FindClass outside the main thread will run into problems due
michael@0	37	// to missing the classpath
michael@0	38	MOZ_ASSERT(NS_IsMainThread());
michael@0	39	JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0	40	return env->FindClass(className);
michael@0	41	}
michael@0	42
michael@0	43	jclass
michael@0	44	__jsjni_GetGlobalClassRef(const char *className) {
michael@0	45	// root class globally
michael@0	46	JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0	47	jclass globalRef = static_cast<jclass>(env->NewGlobalRef(env->FindClass(className)));
michael@0	48	if (!globalRef)
michael@0	49	return nullptr;
michael@0	50
michael@0	51	// return the newly create global reference
michael@0	52	return globalRef;
michael@0	53	}
michael@0	54
michael@0	55	__attribute__ ((visibility("default")))
michael@0	56	jclass
michael@0	57	jsjni_GetGlobalClassRef(const char *className) {
michael@0	58	nsCOMPtr<nsIThread> mainThread;
michael@0	59	mozilla::DebugOnly<nsresult> rv = NS_GetMainThread(getter_AddRefs(mainThread));
michael@0	60	MOZ_ASSERT(NS_SUCCEEDED(rv));
michael@0	61
michael@0	62	jclass foundClass;
michael@0	63	nsRefPtr<nsIRunnable> runnable_ref(new GetGlobalClassRefRunnable(className,
michael@0	64	&foundClass));
michael@0	65	mainThread->Dispatch(runnable_ref, NS_DISPATCH_SYNC);
michael@0	66	if (!foundClass)
michael@0	67	return nullptr;
michael@0	68
michael@0	69	return foundClass;
michael@0	70	}
michael@0	71
michael@0	72	__attribute__ ((visibility("default")))
michael@0	73	jmethodID
michael@0	74	jsjni_GetStaticMethodID(jclass methodClass,
michael@0	75	const char *methodName,
michael@0	76	const char *signature) {
michael@0	77	JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0	78	return env->GetStaticMethodID(methodClass, methodName, signature);
michael@0	79	}
michael@0	80
michael@0	81	__attribute__ ((visibility("default")))
michael@0	82	bool
michael@0	83	jsjni_ExceptionCheck() {
michael@0	84	JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0	85	return env->ExceptionCheck();
michael@0	86	}
michael@0	87
michael@0	88	__attribute__ ((visibility("default")))
michael@0	89	void
michael@0	90	jsjni_CallStaticVoidMethodA(jclass cls,
michael@0	91	jmethodID method,
michael@0	92	jvalue *values) {
michael@0	93	JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0	94
michael@0	95	mozilla::AutoLocalJNIFrame jniFrame(env);
michael@0	96	env->CallStaticVoidMethodA(cls, method, values);
michael@0	97	}
michael@0	98
michael@0	99	__attribute__ ((visibility("default")))
michael@0	100	int
michael@0	101	jsjni_CallStaticIntMethodA(jclass cls,
michael@0	102	jmethodID method,
michael@0	103	jvalue *values) {
michael@0	104	JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0	105
michael@0	106	mozilla::AutoLocalJNIFrame jniFrame(env);
michael@0	107	return env->CallStaticIntMethodA(cls, method, values);
michael@0	108	}
michael@0	109
michael@0	110	__attribute__ ((visibility("default")))
michael@0	111	jobject jsjni_GetGlobalContextRef() {
michael@0	112	return mozilla::AndroidBridge::Bridge()->GetGlobalContextRef();
michael@0	113	}
michael@0	114
michael@0	115	__attribute__ ((visibility("default")))
michael@0	116	JavaVM* jsjni_GetVM() {
michael@0	117	return mozilla::AndroidBridge::GetVM();
michael@0	118	}
michael@0	119
michael@0	120	__attribute__ ((visibility("default")))
michael@0	121	JNIEnv* jsjni_GetJNIForThread() {
michael@0	122	return GetJNIForThread();
michael@0	123	}
michael@0	124	}