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