1/*
2 * Copyright (C) 2012 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#include <input/Input.h>
18
19#include <android_runtime/AndroidRuntime.h>
20#include <jni.h>
21#include <nativehelper/JNIHelp.h>
22
23#include <nativehelper/ScopedLocalRef.h>
24
25#include "android_view_InputDevice.h"
26#include "android_view_KeyCharacterMap.h"
27
28#include "core_jni_helpers.h"
29
30namespace android {
31
32static struct {
33    jclass clazz;
34
35    jmethodID ctor;
36    jmethodID addMotionRange;
37} gInputDeviceClassInfo;
38
39jobject android_view_InputDevice_create(JNIEnv* env, const InputDeviceInfo& deviceInfo) {
40    ScopedLocalRef<jstring> nameObj(env, env->NewStringUTF(deviceInfo.getDisplayName().string()));
41    if (!nameObj.get()) {
42        return NULL;
43    }
44
45    ScopedLocalRef<jstring> descriptorObj(env,
46            env->NewStringUTF(deviceInfo.getIdentifier().descriptor.string()));
47    if (!descriptorObj.get()) {
48        return NULL;
49    }
50
51    ScopedLocalRef<jobject> kcmObj(env,
52            android_view_KeyCharacterMap_create(env, deviceInfo.getId(),
53            deviceInfo.getKeyCharacterMap()));
54    if (!kcmObj.get()) {
55        return NULL;
56    }
57
58    const InputDeviceIdentifier& ident = deviceInfo.getIdentifier();
59
60    // Not sure why, but JNI is complaining when I pass this through directly.
61    jboolean hasMic = deviceInfo.hasMic() ? JNI_TRUE : JNI_FALSE;
62
63    ScopedLocalRef<jobject> inputDeviceObj(env, env->NewObject(gInputDeviceClassInfo.clazz,
64                gInputDeviceClassInfo.ctor, deviceInfo.getId(), deviceInfo.getGeneration(),
65                deviceInfo.getControllerNumber(), nameObj.get(),
66                static_cast<int32_t>(ident.vendor), static_cast<int32_t>(ident.product),
67                descriptorObj.get(), deviceInfo.isExternal(), deviceInfo.getSources(),
68                deviceInfo.getKeyboardType(), kcmObj.get(), deviceInfo.hasVibrator(),
69                hasMic, deviceInfo.hasButtonUnderPad()));
70
71    const Vector<InputDeviceInfo::MotionRange>& ranges = deviceInfo.getMotionRanges();
72    for (size_t i = 0; i < ranges.size(); i++) {
73        const InputDeviceInfo::MotionRange& range = ranges.itemAt(i);
74        env->CallVoidMethod(inputDeviceObj.get(), gInputDeviceClassInfo.addMotionRange, range.axis,
75                range.source, range.min, range.max, range.flat, range.fuzz, range.resolution);
76        if (env->ExceptionCheck()) {
77            return NULL;
78        }
79    }
80
81    return env->NewLocalRef(inputDeviceObj.get());
82}
83
84
85int register_android_view_InputDevice(JNIEnv* env)
86{
87    gInputDeviceClassInfo.clazz = FindClassOrDie(env, "android/view/InputDevice");
88    gInputDeviceClassInfo.clazz = MakeGlobalRefOrDie(env, gInputDeviceClassInfo.clazz);
89
90    gInputDeviceClassInfo.ctor = GetMethodIDOrDie(env, gInputDeviceClassInfo.clazz, "<init>",
91            "(IIILjava/lang/String;IILjava/lang/String;ZIILandroid/view/KeyCharacterMap;ZZZ)V");
92
93    gInputDeviceClassInfo.addMotionRange = GetMethodIDOrDie(env, gInputDeviceClassInfo.clazz,
94            "addMotionRange", "(IIFFFFF)V");
95
96    return 0;
97}
98
99}; // namespace android
100