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 "InputWindowHandle"
18
19 #include "JNIHelp.h"
20 #include "jni.h"
21 #include <android_runtime/AndroidRuntime.h>
22 #include <utils/threads.h>
23
24 #include <android_view_InputChannel.h>
25 #include <android/graphics/Region.h>
26
27 #include "com_android_server_input_InputWindowHandle.h"
28 #include "com_android_server_input_InputApplicationHandle.h"
29
30 namespace android {
31
32 static struct {
33 jfieldID ptr;
34 jfieldID inputApplicationHandle;
35 jfieldID inputChannel;
36 jfieldID name;
37 jfieldID layoutParamsFlags;
38 jfieldID layoutParamsType;
39 jfieldID dispatchingTimeoutNanos;
40 jfieldID frameLeft;
41 jfieldID frameTop;
42 jfieldID frameRight;
43 jfieldID frameBottom;
44 jfieldID scaleFactor;
45 jfieldID touchableRegion;
46 jfieldID visible;
47 jfieldID canReceiveKeys;
48 jfieldID hasFocus;
49 jfieldID hasWallpaper;
50 jfieldID paused;
51 jfieldID layer;
52 jfieldID ownerPid;
53 jfieldID ownerUid;
54 jfieldID inputFeatures;
55 jfieldID displayId;
56 } gInputWindowHandleClassInfo;
57
58 static Mutex gHandleMutex;
59
60
61 // --- NativeInputWindowHandle ---
62
NativeInputWindowHandle(const sp<InputApplicationHandle> & inputApplicationHandle,jweak objWeak)63 NativeInputWindowHandle::NativeInputWindowHandle(
64 const sp<InputApplicationHandle>& inputApplicationHandle, jweak objWeak) :
65 InputWindowHandle(inputApplicationHandle),
66 mObjWeak(objWeak) {
67 }
68
~NativeInputWindowHandle()69 NativeInputWindowHandle::~NativeInputWindowHandle() {
70 JNIEnv* env = AndroidRuntime::getJNIEnv();
71 env->DeleteWeakGlobalRef(mObjWeak);
72 }
73
getInputWindowHandleObjLocalRef(JNIEnv * env)74 jobject NativeInputWindowHandle::getInputWindowHandleObjLocalRef(JNIEnv* env) {
75 return env->NewLocalRef(mObjWeak);
76 }
77
updateInfo()78 bool NativeInputWindowHandle::updateInfo() {
79 JNIEnv* env = AndroidRuntime::getJNIEnv();
80 jobject obj = env->NewLocalRef(mObjWeak);
81 if (!obj) {
82 releaseInfo();
83 return false;
84 }
85
86 if (!mInfo) {
87 mInfo = new InputWindowInfo();
88 }
89
90 jobject inputChannelObj = env->GetObjectField(obj,
91 gInputWindowHandleClassInfo.inputChannel);
92 if (inputChannelObj) {
93 mInfo->inputChannel = android_view_InputChannel_getInputChannel(env, inputChannelObj);
94 env->DeleteLocalRef(inputChannelObj);
95 } else {
96 mInfo->inputChannel.clear();
97 }
98
99 jstring nameObj = jstring(env->GetObjectField(obj,
100 gInputWindowHandleClassInfo.name));
101 if (nameObj) {
102 const char* nameStr = env->GetStringUTFChars(nameObj, NULL);
103 mInfo->name.setTo(nameStr);
104 env->ReleaseStringUTFChars(nameObj, nameStr);
105 env->DeleteLocalRef(nameObj);
106 } else {
107 mInfo->name.setTo("<null>");
108 }
109
110 mInfo->layoutParamsFlags = env->GetIntField(obj,
111 gInputWindowHandleClassInfo.layoutParamsFlags);
112 mInfo->layoutParamsType = env->GetIntField(obj,
113 gInputWindowHandleClassInfo.layoutParamsType);
114 mInfo->dispatchingTimeout = env->GetLongField(obj,
115 gInputWindowHandleClassInfo.dispatchingTimeoutNanos);
116 mInfo->frameLeft = env->GetIntField(obj,
117 gInputWindowHandleClassInfo.frameLeft);
118 mInfo->frameTop = env->GetIntField(obj,
119 gInputWindowHandleClassInfo.frameTop);
120 mInfo->frameRight = env->GetIntField(obj,
121 gInputWindowHandleClassInfo.frameRight);
122 mInfo->frameBottom = env->GetIntField(obj,
123 gInputWindowHandleClassInfo.frameBottom);
124 mInfo->scaleFactor = env->GetFloatField(obj,
125 gInputWindowHandleClassInfo.scaleFactor);
126
127 jobject regionObj = env->GetObjectField(obj,
128 gInputWindowHandleClassInfo.touchableRegion);
129 if (regionObj) {
130 SkRegion* region = android_graphics_Region_getSkRegion(env, regionObj);
131 mInfo->touchableRegion.set(*region);
132 env->DeleteLocalRef(regionObj);
133 } else {
134 mInfo->touchableRegion.setEmpty();
135 }
136
137 mInfo->visible = env->GetBooleanField(obj,
138 gInputWindowHandleClassInfo.visible);
139 mInfo->canReceiveKeys = env->GetBooleanField(obj,
140 gInputWindowHandleClassInfo.canReceiveKeys);
141 mInfo->hasFocus = env->GetBooleanField(obj,
142 gInputWindowHandleClassInfo.hasFocus);
143 mInfo->hasWallpaper = env->GetBooleanField(obj,
144 gInputWindowHandleClassInfo.hasWallpaper);
145 mInfo->paused = env->GetBooleanField(obj,
146 gInputWindowHandleClassInfo.paused);
147 mInfo->layer = env->GetIntField(obj,
148 gInputWindowHandleClassInfo.layer);
149 mInfo->ownerPid = env->GetIntField(obj,
150 gInputWindowHandleClassInfo.ownerPid);
151 mInfo->ownerUid = env->GetIntField(obj,
152 gInputWindowHandleClassInfo.ownerUid);
153 mInfo->inputFeatures = env->GetIntField(obj,
154 gInputWindowHandleClassInfo.inputFeatures);
155 mInfo->displayId = env->GetIntField(obj,
156 gInputWindowHandleClassInfo.displayId);
157
158 env->DeleteLocalRef(obj);
159 return true;
160 }
161
162
163 // --- Global functions ---
164
android_server_InputWindowHandle_getHandle(JNIEnv * env,jobject inputWindowHandleObj)165 sp<NativeInputWindowHandle> android_server_InputWindowHandle_getHandle(
166 JNIEnv* env, jobject inputWindowHandleObj) {
167 if (!inputWindowHandleObj) {
168 return NULL;
169 }
170
171 AutoMutex _l(gHandleMutex);
172
173 int ptr = env->GetIntField(inputWindowHandleObj, gInputWindowHandleClassInfo.ptr);
174 NativeInputWindowHandle* handle;
175 if (ptr) {
176 handle = reinterpret_cast<NativeInputWindowHandle*>(ptr);
177 } else {
178 jobject inputApplicationHandleObj = env->GetObjectField(inputWindowHandleObj,
179 gInputWindowHandleClassInfo.inputApplicationHandle);
180 sp<InputApplicationHandle> inputApplicationHandle =
181 android_server_InputApplicationHandle_getHandle(env, inputApplicationHandleObj);
182 env->DeleteLocalRef(inputApplicationHandleObj);
183
184 jweak objWeak = env->NewWeakGlobalRef(inputWindowHandleObj);
185 handle = new NativeInputWindowHandle(inputApplicationHandle, objWeak);
186 handle->incStrong((void*)android_server_InputWindowHandle_getHandle);
187 env->SetIntField(inputWindowHandleObj, gInputWindowHandleClassInfo.ptr,
188 reinterpret_cast<int>(handle));
189 }
190 return handle;
191 }
192
193
194 // --- JNI ---
195
android_server_InputWindowHandle_nativeDispose(JNIEnv * env,jobject obj)196 static void android_server_InputWindowHandle_nativeDispose(JNIEnv* env, jobject obj) {
197 AutoMutex _l(gHandleMutex);
198
199 int ptr = env->GetIntField(obj, gInputWindowHandleClassInfo.ptr);
200 if (ptr) {
201 env->SetIntField(obj, gInputWindowHandleClassInfo.ptr, 0);
202
203 NativeInputWindowHandle* handle = reinterpret_cast<NativeInputWindowHandle*>(ptr);
204 handle->decStrong((void*)android_server_InputWindowHandle_getHandle);
205 }
206 }
207
208
209 static JNINativeMethod gInputWindowHandleMethods[] = {
210 /* name, signature, funcPtr */
211 { "nativeDispose", "()V",
212 (void*) android_server_InputWindowHandle_nativeDispose },
213 };
214
215 #define FIND_CLASS(var, className) \
216 var = env->FindClass(className); \
217 LOG_FATAL_IF(! var, "Unable to find class " className);
218
219 #define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
220 var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
221 LOG_FATAL_IF(! var, "Unable to find field " fieldName);
222
register_android_server_InputWindowHandle(JNIEnv * env)223 int register_android_server_InputWindowHandle(JNIEnv* env) {
224 int res = jniRegisterNativeMethods(env, "com/android/server/input/InputWindowHandle",
225 gInputWindowHandleMethods, NELEM(gInputWindowHandleMethods));
226 LOG_FATAL_IF(res < 0, "Unable to register native methods.");
227
228 jclass clazz;
229 FIND_CLASS(clazz, "com/android/server/input/InputWindowHandle");
230
231 GET_FIELD_ID(gInputWindowHandleClassInfo.ptr, clazz,
232 "ptr", "I");
233
234 GET_FIELD_ID(gInputWindowHandleClassInfo.inputApplicationHandle,
235 clazz,
236 "inputApplicationHandle", "Lcom/android/server/input/InputApplicationHandle;");
237
238 GET_FIELD_ID(gInputWindowHandleClassInfo.inputChannel, clazz,
239 "inputChannel", "Landroid/view/InputChannel;");
240
241 GET_FIELD_ID(gInputWindowHandleClassInfo.name, clazz,
242 "name", "Ljava/lang/String;");
243
244 GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsFlags, clazz,
245 "layoutParamsFlags", "I");
246
247 GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsType, clazz,
248 "layoutParamsType", "I");
249
250 GET_FIELD_ID(gInputWindowHandleClassInfo.dispatchingTimeoutNanos, clazz,
251 "dispatchingTimeoutNanos", "J");
252
253 GET_FIELD_ID(gInputWindowHandleClassInfo.frameLeft, clazz,
254 "frameLeft", "I");
255
256 GET_FIELD_ID(gInputWindowHandleClassInfo.frameTop, clazz,
257 "frameTop", "I");
258
259 GET_FIELD_ID(gInputWindowHandleClassInfo.frameRight, clazz,
260 "frameRight", "I");
261
262 GET_FIELD_ID(gInputWindowHandleClassInfo.frameBottom, clazz,
263 "frameBottom", "I");
264
265 GET_FIELD_ID(gInputWindowHandleClassInfo.scaleFactor, clazz,
266 "scaleFactor", "F");
267
268 GET_FIELD_ID(gInputWindowHandleClassInfo.touchableRegion, clazz,
269 "touchableRegion", "Landroid/graphics/Region;");
270
271 GET_FIELD_ID(gInputWindowHandleClassInfo.visible, clazz,
272 "visible", "Z");
273
274 GET_FIELD_ID(gInputWindowHandleClassInfo.canReceiveKeys, clazz,
275 "canReceiveKeys", "Z");
276
277 GET_FIELD_ID(gInputWindowHandleClassInfo.hasFocus, clazz,
278 "hasFocus", "Z");
279
280 GET_FIELD_ID(gInputWindowHandleClassInfo.hasWallpaper, clazz,
281 "hasWallpaper", "Z");
282
283 GET_FIELD_ID(gInputWindowHandleClassInfo.paused, clazz,
284 "paused", "Z");
285
286 GET_FIELD_ID(gInputWindowHandleClassInfo.layer, clazz,
287 "layer", "I");
288
289 GET_FIELD_ID(gInputWindowHandleClassInfo.ownerPid, clazz,
290 "ownerPid", "I");
291
292 GET_FIELD_ID(gInputWindowHandleClassInfo.ownerUid, clazz,
293 "ownerUid", "I");
294
295 GET_FIELD_ID(gInputWindowHandleClassInfo.inputFeatures, clazz,
296 "inputFeatures", "I");
297
298 GET_FIELD_ID(gInputWindowHandleClassInfo.displayId, clazz,
299 "displayId", "I");
300 return 0;
301 }
302
303 } /* namespace android */
304