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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "InputWindowHandle"
#include <nativehelper/JNIHelp.h>
#include "jni.h"
#include <android_runtime/AndroidRuntime.h>
#include <utils/threads.h>
#include <android_view_InputChannel.h>
#include <android/graphics/Region.h>
#include <ui/Region.h>
#include "com_android_server_input_InputWindowHandle.h"
#include "com_android_server_input_InputApplicationHandle.h"
namespace android {
static struct {
jfieldID ptr;
jfieldID inputApplicationHandle;
jfieldID inputChannel;
jfieldID name;
jfieldID layoutParamsFlags;
jfieldID layoutParamsType;
jfieldID dispatchingTimeoutNanos;
jfieldID frameLeft;
jfieldID frameTop;
jfieldID frameRight;
jfieldID frameBottom;
jfieldID scaleFactor;
jfieldID touchableRegion;
jfieldID visible;
jfieldID canReceiveKeys;
jfieldID hasFocus;
jfieldID hasWallpaper;
jfieldID paused;
jfieldID layer;
jfieldID ownerPid;
jfieldID ownerUid;
jfieldID inputFeatures;
jfieldID displayId;
} gInputWindowHandleClassInfo;
static Mutex gHandleMutex;
// --- NativeInputWindowHandle ---
NativeInputWindowHandle::NativeInputWindowHandle(
const sp<InputApplicationHandle>& inputApplicationHandle, jweak objWeak) :
InputWindowHandle(inputApplicationHandle),
mObjWeak(objWeak) {
}
NativeInputWindowHandle::~NativeInputWindowHandle() {
JNIEnv* env = AndroidRuntime::getJNIEnv();
env->DeleteWeakGlobalRef(mObjWeak);
}
jobject NativeInputWindowHandle::getInputWindowHandleObjLocalRef(JNIEnv* env) {
return env->NewLocalRef(mObjWeak);
}
bool NativeInputWindowHandle::updateInfo() {
JNIEnv* env = AndroidRuntime::getJNIEnv();
jobject obj = env->NewLocalRef(mObjWeak);
if (!obj) {
releaseInfo();
return false;
}
if (!mInfo) {
mInfo = new InputWindowInfo();
} else {
mInfo->touchableRegion.clear();
}
jobject inputChannelObj = env->GetObjectField(obj,
gInputWindowHandleClassInfo.inputChannel);
if (inputChannelObj) {
mInfo->inputChannel = android_view_InputChannel_getInputChannel(env, inputChannelObj);
env->DeleteLocalRef(inputChannelObj);
} else {
mInfo->inputChannel.clear();
}
jstring nameObj = jstring(env->GetObjectField(obj,
gInputWindowHandleClassInfo.name));
if (nameObj) {
const char* nameStr = env->GetStringUTFChars(nameObj, NULL);
mInfo->name.setTo(nameStr);
env->ReleaseStringUTFChars(nameObj, nameStr);
env->DeleteLocalRef(nameObj);
} else {
mInfo->name.setTo("<null>");
}
mInfo->layoutParamsFlags = env->GetIntField(obj,
gInputWindowHandleClassInfo.layoutParamsFlags);
mInfo->layoutParamsType = env->GetIntField(obj,
gInputWindowHandleClassInfo.layoutParamsType);
mInfo->dispatchingTimeout = env->GetLongField(obj,
gInputWindowHandleClassInfo.dispatchingTimeoutNanos);
mInfo->frameLeft = env->GetIntField(obj,
gInputWindowHandleClassInfo.frameLeft);
mInfo->frameTop = env->GetIntField(obj,
gInputWindowHandleClassInfo.frameTop);
mInfo->frameRight = env->GetIntField(obj,
gInputWindowHandleClassInfo.frameRight);
mInfo->frameBottom = env->GetIntField(obj,
gInputWindowHandleClassInfo.frameBottom);
mInfo->scaleFactor = env->GetFloatField(obj,
gInputWindowHandleClassInfo.scaleFactor);
jobject regionObj = env->GetObjectField(obj,
gInputWindowHandleClassInfo.touchableRegion);
if (regionObj) {
SkRegion* region = android_graphics_Region_getSkRegion(env, regionObj);
for (SkRegion::Iterator it(*region); !it.done(); it.next()) {
const SkIRect& rect = it.rect();
mInfo->addTouchableRegion(Rect(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom));
}
env->DeleteLocalRef(regionObj);
}
mInfo->visible = env->GetBooleanField(obj,
gInputWindowHandleClassInfo.visible);
mInfo->canReceiveKeys = env->GetBooleanField(obj,
gInputWindowHandleClassInfo.canReceiveKeys);
mInfo->hasFocus = env->GetBooleanField(obj,
gInputWindowHandleClassInfo.hasFocus);
mInfo->hasWallpaper = env->GetBooleanField(obj,
gInputWindowHandleClassInfo.hasWallpaper);
mInfo->paused = env->GetBooleanField(obj,
gInputWindowHandleClassInfo.paused);
mInfo->layer = env->GetIntField(obj,
gInputWindowHandleClassInfo.layer);
mInfo->ownerPid = env->GetIntField(obj,
gInputWindowHandleClassInfo.ownerPid);
mInfo->ownerUid = env->GetIntField(obj,
gInputWindowHandleClassInfo.ownerUid);
mInfo->inputFeatures = env->GetIntField(obj,
gInputWindowHandleClassInfo.inputFeatures);
mInfo->displayId = env->GetIntField(obj,
gInputWindowHandleClassInfo.displayId);
env->DeleteLocalRef(obj);
return true;
}
// --- Global functions ---
sp<NativeInputWindowHandle> android_server_InputWindowHandle_getHandle(
JNIEnv* env, jobject inputWindowHandleObj) {
if (!inputWindowHandleObj) {
return NULL;
}
AutoMutex _l(gHandleMutex);
jlong ptr = env->GetLongField(inputWindowHandleObj, gInputWindowHandleClassInfo.ptr);
NativeInputWindowHandle* handle;
if (ptr) {
handle = reinterpret_cast<NativeInputWindowHandle*>(ptr);
} else {
jobject inputApplicationHandleObj = env->GetObjectField(inputWindowHandleObj,
gInputWindowHandleClassInfo.inputApplicationHandle);
sp<InputApplicationHandle> inputApplicationHandle =
android_server_InputApplicationHandle_getHandle(env, inputApplicationHandleObj);
env->DeleteLocalRef(inputApplicationHandleObj);
jweak objWeak = env->NewWeakGlobalRef(inputWindowHandleObj);
handle = new NativeInputWindowHandle(inputApplicationHandle, objWeak);
handle->incStrong((void*)android_server_InputWindowHandle_getHandle);
env->SetLongField(inputWindowHandleObj, gInputWindowHandleClassInfo.ptr,
reinterpret_cast<jlong>(handle));
}
return handle;
}
// --- JNI ---
static void android_server_InputWindowHandle_nativeDispose(JNIEnv* env, jobject obj) {
AutoMutex _l(gHandleMutex);
jlong ptr = env->GetLongField(obj, gInputWindowHandleClassInfo.ptr);
if (ptr) {
env->SetLongField(obj, gInputWindowHandleClassInfo.ptr, 0);
NativeInputWindowHandle* handle = reinterpret_cast<NativeInputWindowHandle*>(ptr);
handle->decStrong((void*)android_server_InputWindowHandle_getHandle);
}
}
static const JNINativeMethod gInputWindowHandleMethods[] = {
/* name, signature, funcPtr */
{ "nativeDispose", "()V",
(void*) android_server_InputWindowHandle_nativeDispose },
};
#define FIND_CLASS(var, className) \
var = env->FindClass(className); \
LOG_FATAL_IF(! (var), "Unable to find class " className);
#define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
LOG_FATAL_IF(! (var), "Unable to find field " fieldName);
int register_android_server_InputWindowHandle(JNIEnv* env) {
int res = jniRegisterNativeMethods(env, "com/android/server/input/InputWindowHandle",
gInputWindowHandleMethods, NELEM(gInputWindowHandleMethods));
(void) res; // Faked use when LOG_NDEBUG.
LOG_FATAL_IF(res < 0, "Unable to register native methods.");
jclass clazz;
FIND_CLASS(clazz, "com/android/server/input/InputWindowHandle");
GET_FIELD_ID(gInputWindowHandleClassInfo.ptr, clazz,
"ptr", "J");
GET_FIELD_ID(gInputWindowHandleClassInfo.inputApplicationHandle,
clazz,
"inputApplicationHandle", "Lcom/android/server/input/InputApplicationHandle;");
GET_FIELD_ID(gInputWindowHandleClassInfo.inputChannel, clazz,
"inputChannel", "Landroid/view/InputChannel;");
GET_FIELD_ID(gInputWindowHandleClassInfo.name, clazz,
"name", "Ljava/lang/String;");
GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsFlags, clazz,
"layoutParamsFlags", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsType, clazz,
"layoutParamsType", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.dispatchingTimeoutNanos, clazz,
"dispatchingTimeoutNanos", "J");
GET_FIELD_ID(gInputWindowHandleClassInfo.frameLeft, clazz,
"frameLeft", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.frameTop, clazz,
"frameTop", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.frameRight, clazz,
"frameRight", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.frameBottom, clazz,
"frameBottom", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.scaleFactor, clazz,
"scaleFactor", "F");
GET_FIELD_ID(gInputWindowHandleClassInfo.touchableRegion, clazz,
"touchableRegion", "Landroid/graphics/Region;");
GET_FIELD_ID(gInputWindowHandleClassInfo.visible, clazz,
"visible", "Z");
GET_FIELD_ID(gInputWindowHandleClassInfo.canReceiveKeys, clazz,
"canReceiveKeys", "Z");
GET_FIELD_ID(gInputWindowHandleClassInfo.hasFocus, clazz,
"hasFocus", "Z");
GET_FIELD_ID(gInputWindowHandleClassInfo.hasWallpaper, clazz,
"hasWallpaper", "Z");
GET_FIELD_ID(gInputWindowHandleClassInfo.paused, clazz,
"paused", "Z");
GET_FIELD_ID(gInputWindowHandleClassInfo.layer, clazz,
"layer", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.ownerPid, clazz,
"ownerPid", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.ownerUid, clazz,
"ownerUid", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.inputFeatures, clazz,
"inputFeatures", "I");
GET_FIELD_ID(gInputWindowHandleClassInfo.displayId, clazz,
"displayId", "I");
return 0;
}
} /* namespace android */