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android / platform / frameworks / base / 76f6a86de25e1bf74717e047e55fd44b089673f3 / . / services / core / jni / com_android_server_input_InputApplicationHandle.cpp
blob: bdc109d086f625b680c5f62e91a64ea4224889bc [file] [log] [blame]
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "InputApplicationHandle"
18
19#include "JNIHelp.h"
20#include "jni.h"
21#include <android_runtime/AndroidRuntime.h>
22#include <utils/threads.h>
23
Jeff Brown4532e612012-04-05 14:27:12 -0700[diff] [blame]24#include "com_android_server_input_InputApplicationHandle.h"
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]25
26namespace android {
27
28static struct {
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]29 jfieldID ptr;
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]30 jfieldID name;
31 jfieldID dispatchingTimeoutNanos;
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]32} gInputApplicationHandleClassInfo;
33
34static Mutex gHandleMutex;
35
36
37// --- NativeInputApplicationHandle ---
38
39NativeInputApplicationHandle::NativeInputApplicationHandle(jweak objWeak) :
40 mObjWeak(objWeak) {
41}
42
43NativeInputApplicationHandle::~NativeInputApplicationHandle() {
44 JNIEnv* env = AndroidRuntime::getJNIEnv();
45 env->DeleteWeakGlobalRef(mObjWeak);
46}
47
48jobject NativeInputApplicationHandle::getInputApplicationHandleObjLocalRef(JNIEnv* env) {
49 return env->NewLocalRef(mObjWeak);
50}
51
Jeff Browncc4f7db2011-08-30 20:34:48 -0700[diff] [blame]52bool NativeInputApplicationHandle::updateInfo() {
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]53 JNIEnv* env = AndroidRuntime::getJNIEnv();
54 jobject obj = env->NewLocalRef(mObjWeak);
55 if (!obj) {
Jeff Browncc4f7db2011-08-30 20:34:48 -0700[diff] [blame]56 releaseInfo();
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]57 return false;
58 }
59
Jeff Browncc4f7db2011-08-30 20:34:48 -0700[diff] [blame]60 if (!mInfo) {
61 mInfo = new InputApplicationInfo();
62 }
63
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]64 jstring nameObj = jstring(env->GetObjectField(obj,
65 gInputApplicationHandleClassInfo.name));
66 if (nameObj) {
67 const char* nameStr = env->GetStringUTFChars(nameObj, NULL);
Jeff Browncc4f7db2011-08-30 20:34:48 -0700[diff] [blame]68 mInfo->name.setTo(nameStr);
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]69 env->ReleaseStringUTFChars(nameObj, nameStr);
70 env->DeleteLocalRef(nameObj);
71 } else {
Jeff Browncc4f7db2011-08-30 20:34:48 -0700[diff] [blame]72 mInfo->name.setTo("<null>");
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]73 }
74
Jeff Browncc4f7db2011-08-30 20:34:48 -0700[diff] [blame]75 mInfo->dispatchingTimeout = env->GetLongField(obj,
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]76 gInputApplicationHandleClassInfo.dispatchingTimeoutNanos);
77
78 env->DeleteLocalRef(obj);
79 return true;
80}
81
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]82
83// --- Global functions ---
84
85sp<InputApplicationHandle> android_server_InputApplicationHandle_getHandle(
86 JNIEnv* env, jobject inputApplicationHandleObj) {
87 if (!inputApplicationHandleObj) {
88 return NULL;
89 }
90
91 AutoMutex _l(gHandleMutex);
92
Ashok Bhat7e2a9dc2014-01-02 19:43:30 +0000[diff] [blame]93 jlong ptr = env->GetLongField(inputApplicationHandleObj, gInputApplicationHandleClassInfo.ptr);
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]94 NativeInputApplicationHandle* handle;
95 if (ptr) {
96 handle = reinterpret_cast<NativeInputApplicationHandle*>(ptr);
97 } else {
98 jweak objWeak = env->NewWeakGlobalRef(inputApplicationHandleObj);
99 handle = new NativeInputApplicationHandle(objWeak);
Mathias Agopianb1d90c82013-03-06 17:45:42 -0800[diff] [blame]100 handle->incStrong((void*)android_server_InputApplicationHandle_getHandle);
Ashok Bhat7e2a9dc2014-01-02 19:43:30 +0000[diff] [blame]101 env->SetLongField(inputApplicationHandleObj, gInputApplicationHandleClassInfo.ptr,
102 reinterpret_cast<jlong>(handle));
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]103 }
104 return handle;
105}
106
107
108// --- JNI ---
109
110static void android_server_InputApplicationHandle_nativeDispose(JNIEnv* env, jobject obj) {
111 AutoMutex _l(gHandleMutex);
112
Ashok Bhat7e2a9dc2014-01-02 19:43:30 +0000[diff] [blame]113 jlong ptr = env->GetLongField(obj, gInputApplicationHandleClassInfo.ptr);
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]114 if (ptr) {
Ashok Bhat7e2a9dc2014-01-02 19:43:30 +0000[diff] [blame]115 env->SetLongField(obj, gInputApplicationHandleClassInfo.ptr, 0);
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]116
117 NativeInputApplicationHandle* handle = reinterpret_cast<NativeInputApplicationHandle*>(ptr);
Mathias Agopianb1d90c82013-03-06 17:45:42 -0800[diff] [blame]118 handle->decStrong((void*)android_server_InputApplicationHandle_getHandle);
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]119 }
120}
121
122
Daniel Micay76f6a862015-09-19 17:31:01 -0400[diff] [blame^]123static const JNINativeMethod gInputApplicationHandleMethods[] = {
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]124 /* name, signature, funcPtr */
125 { "nativeDispose", "()V",
126 (void*) android_server_InputApplicationHandle_nativeDispose },
127};
128
129#define FIND_CLASS(var, className) \
130 var = env->FindClass(className); \
Carl Shapiro17cc33a2011-03-05 20:53:16 -0800[diff] [blame]131 LOG_FATAL_IF(! var, "Unable to find class " className);
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]132
133#define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
134 var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
135 LOG_FATAL_IF(! var, "Unable to find field " fieldName);
136
137int register_android_server_InputApplicationHandle(JNIEnv* env) {
Jeff Brown4532e612012-04-05 14:27:12 -0700[diff] [blame]138 int res = jniRegisterNativeMethods(env, "com/android/server/input/InputApplicationHandle",
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]139 gInputApplicationHandleMethods, NELEM(gInputApplicationHandleMethods));
Bernhard Rosenkränzer9c1c90e2014-11-12 14:45:58 +0100[diff] [blame]140 (void) res; // Faked use when LOG_NDEBUG.
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]141 LOG_FATAL_IF(res < 0, "Unable to register native methods.");
142
Carl Shapiro17cc33a2011-03-05 20:53:16 -0800[diff] [blame]143 jclass clazz;
Jeff Brown4532e612012-04-05 14:27:12 -0700[diff] [blame]144 FIND_CLASS(clazz, "com/android/server/input/InputApplicationHandle");
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]145
Carl Shapiro17cc33a2011-03-05 20:53:16 -0800[diff] [blame]146 GET_FIELD_ID(gInputApplicationHandleClassInfo.ptr, clazz,
Ashok Bhat7e2a9dc2014-01-02 19:43:30 +0000[diff] [blame]147 "ptr", "J");
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]148
Jeff Brown9302c872011-07-13 22:51:29 -0700[diff] [blame]149 GET_FIELD_ID(gInputApplicationHandleClassInfo.name, clazz,
150 "name", "Ljava/lang/String;");
151
152 GET_FIELD_ID(gInputApplicationHandleClassInfo.dispatchingTimeoutNanos,
153 clazz,
154 "dispatchingTimeoutNanos", "J");
155
Jeff Brown928e0542011-01-10 11:17:36 -0800[diff] [blame]156 return 0;
157}
158
159} /* namespace android */