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 layoutParamsPrivateFlags;
39 jfieldID layoutParamsType;
40 jfieldID dispatchingTimeoutNanos;
41 jfieldID frameLeft;
42 jfieldID frameTop;
43 jfieldID frameRight;
44 jfieldID frameBottom;
45 jfieldID scaleFactor;
46 jfieldID touchableRegion;
47 jfieldID visible;
48 jfieldID canReceiveKeys;
49 jfieldID hasFocus;
50 jfieldID hasWallpaper;
51 jfieldID paused;
52 jfieldID layer;
53 jfieldID ownerPid;
54 jfieldID ownerUid;
55 jfieldID inputFeatures;
56 jfieldID displayId;
57 } gInputWindowHandleClassInfo;
58
59 static Mutex gHandleMutex;
60
61
62 // --- NativeInputWindowHandle ---
63
NativeInputWindowHandle(const sp<InputApplicationHandle> & inputApplicationHandle,jweak objWeak)64 NativeInputWindowHandle::NativeInputWindowHandle(
65 const sp<InputApplicationHandle>& inputApplicationHandle, jweak objWeak) :
66 InputWindowHandle(inputApplicationHandle),
67 mObjWeak(objWeak) {
68 }
69
~NativeInputWindowHandle()70 NativeInputWindowHandle::~NativeInputWindowHandle() {
71 JNIEnv* env = AndroidRuntime::getJNIEnv();
72 env->DeleteWeakGlobalRef(mObjWeak);
73 }
74
getInputWindowHandleObjLocalRef(JNIEnv * env)75 jobject NativeInputWindowHandle::getInputWindowHandleObjLocalRef(JNIEnv* env) {
76 return env->NewLocalRef(mObjWeak);
77 }
78
updateInfo()79 bool NativeInputWindowHandle::updateInfo() {
80 JNIEnv* env = AndroidRuntime::getJNIEnv();
81 jobject obj = env->NewLocalRef(mObjWeak);
82 if (!obj) {
83 releaseInfo();
84 return false;
85 }
86
87 if (!mInfo) {
88 mInfo = new InputWindowInfo();
89 }
90
91 jobject inputChannelObj = env->GetObjectField(obj,
92 gInputWindowHandleClassInfo.inputChannel);
93 if (inputChannelObj) {
94 mInfo->inputChannel = android_view_InputChannel_getInputChannel(env, inputChannelObj);
95 env->DeleteLocalRef(inputChannelObj);
96 } else {
97 mInfo->inputChannel.clear();
98 }
99
100 jstring nameObj = jstring(env->GetObjectField(obj,
101 gInputWindowHandleClassInfo.name));
102 if (nameObj) {
103 const char* nameStr = env->GetStringUTFChars(nameObj, NULL);
104 mInfo->name.setTo(nameStr);
105 env->ReleaseStringUTFChars(nameObj, nameStr);
106 env->DeleteLocalRef(nameObj);
107 } else {
108 mInfo->name.setTo("<null>");
109 }
110
111 mInfo->layoutParamsFlags = env->GetIntField(obj,
112 gInputWindowHandleClassInfo.layoutParamsFlags);
113 mInfo->layoutParamsPrivateFlags = env->GetIntField(obj,
114 gInputWindowHandleClassInfo.layoutParamsPrivateFlags);
115 mInfo->layoutParamsType = env->GetIntField(obj,
116 gInputWindowHandleClassInfo.layoutParamsType);
117 mInfo->dispatchingTimeout = env->GetLongField(obj,
118 gInputWindowHandleClassInfo.dispatchingTimeoutNanos);
119 mInfo->frameLeft = env->GetIntField(obj,
120 gInputWindowHandleClassInfo.frameLeft);
121 mInfo->frameTop = env->GetIntField(obj,
122 gInputWindowHandleClassInfo.frameTop);
123 mInfo->frameRight = env->GetIntField(obj,
124 gInputWindowHandleClassInfo.frameRight);
125 mInfo->frameBottom = env->GetIntField(obj,
126 gInputWindowHandleClassInfo.frameBottom);
127 mInfo->scaleFactor = env->GetFloatField(obj,
128 gInputWindowHandleClassInfo.scaleFactor);
129
130 jobject regionObj = env->GetObjectField(obj,
131 gInputWindowHandleClassInfo.touchableRegion);
132 if (regionObj) {
133 SkRegion* region = android_graphics_Region_getSkRegion(env, regionObj);
134 mInfo->touchableRegion.set(*region);
135 env->DeleteLocalRef(regionObj);
136 } else {
137 mInfo->touchableRegion.setEmpty();
138 }
139
140 mInfo->visible = env->GetBooleanField(obj,
141 gInputWindowHandleClassInfo.visible);
142 mInfo->canReceiveKeys = env->GetBooleanField(obj,
143 gInputWindowHandleClassInfo.canReceiveKeys);
144 mInfo->hasFocus = env->GetBooleanField(obj,
145 gInputWindowHandleClassInfo.hasFocus);
146 mInfo->hasWallpaper = env->GetBooleanField(obj,
147 gInputWindowHandleClassInfo.hasWallpaper);
148 mInfo->paused = env->GetBooleanField(obj,
149 gInputWindowHandleClassInfo.paused);
150 mInfo->layer = env->GetIntField(obj,
151 gInputWindowHandleClassInfo.layer);
152 mInfo->ownerPid = env->GetIntField(obj,
153 gInputWindowHandleClassInfo.ownerPid);
154 mInfo->ownerUid = env->GetIntField(obj,
155 gInputWindowHandleClassInfo.ownerUid);
156 mInfo->inputFeatures = env->GetIntField(obj,
157 gInputWindowHandleClassInfo.inputFeatures);
158 mInfo->displayId = env->GetIntField(obj,
159 gInputWindowHandleClassInfo.displayId);
160
161 env->DeleteLocalRef(obj);
162 return true;
163 }
164
165
166 // --- Global functions ---
167
android_server_InputWindowHandle_getHandle(JNIEnv * env,jobject inputWindowHandleObj)168 sp<NativeInputWindowHandle> android_server_InputWindowHandle_getHandle(
169 JNIEnv* env, jobject inputWindowHandleObj) {
170 if (!inputWindowHandleObj) {
171 return NULL;
172 }
173
174 AutoMutex _l(gHandleMutex);
175
176 int ptr = env->GetIntField(inputWindowHandleObj, gInputWindowHandleClassInfo.ptr);
177 NativeInputWindowHandle* handle;
178 if (ptr) {
179 handle = reinterpret_cast<NativeInputWindowHandle*>(ptr);
180 } else {
181 jobject inputApplicationHandleObj = env->GetObjectField(inputWindowHandleObj,
182 gInputWindowHandleClassInfo.inputApplicationHandle);
183 sp<InputApplicationHandle> inputApplicationHandle =
184 android_server_InputApplicationHandle_getHandle(env, inputApplicationHandleObj);
185 env->DeleteLocalRef(inputApplicationHandleObj);
186
187 jweak objWeak = env->NewWeakGlobalRef(inputWindowHandleObj);
188 handle = new NativeInputWindowHandle(inputApplicationHandle, objWeak);
189 handle->incStrong((void*)android_server_InputWindowHandle_getHandle);
190 env->SetIntField(inputWindowHandleObj, gInputWindowHandleClassInfo.ptr,
191 reinterpret_cast<int>(handle));
192 }
193 return handle;
194 }
195
196
197 // --- JNI ---
198
android_server_InputWindowHandle_nativeDispose(JNIEnv * env,jobject obj)199 static void android_server_InputWindowHandle_nativeDispose(JNIEnv* env, jobject obj) {
200 AutoMutex _l(gHandleMutex);
201
202 int ptr = env->GetIntField(obj, gInputWindowHandleClassInfo.ptr);
203 if (ptr) {
204 env->SetIntField(obj, gInputWindowHandleClassInfo.ptr, 0);
205
206 NativeInputWindowHandle* handle = reinterpret_cast<NativeInputWindowHandle*>(ptr);
207 handle->decStrong((void*)android_server_InputWindowHandle_getHandle);
208 }
209 }
210
211
212 static JNINativeMethod gInputWindowHandleMethods[] = {
213 /* name, signature, funcPtr */
214 { "nativeDispose", "()V",
215 (void*) android_server_InputWindowHandle_nativeDispose },
216 };
217
218 #define FIND_CLASS(var, className) \
219 var = env->FindClass(className); \
220 LOG_FATAL_IF(! var, "Unable to find class " className);
221
222 #define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
223 var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
224 LOG_FATAL_IF(! var, "Unable to find field " fieldName);
225
register_android_server_InputWindowHandle(JNIEnv * env)226 int register_android_server_InputWindowHandle(JNIEnv* env) {
227 int res = jniRegisterNativeMethods(env, "com/android/server/input/InputWindowHandle",
228 gInputWindowHandleMethods, NELEM(gInputWindowHandleMethods));
229 LOG_FATAL_IF(res < 0, "Unable to register native methods.");
230
231 jclass clazz;
232 FIND_CLASS(clazz, "com/android/server/input/InputWindowHandle");
233
234 GET_FIELD_ID(gInputWindowHandleClassInfo.ptr, clazz,
235 "ptr", "I");
236
237 GET_FIELD_ID(gInputWindowHandleClassInfo.inputApplicationHandle,
238 clazz,
239 "inputApplicationHandle", "Lcom/android/server/input/InputApplicationHandle;");
240
241 GET_FIELD_ID(gInputWindowHandleClassInfo.inputChannel, clazz,
242 "inputChannel", "Landroid/view/InputChannel;");
243
244 GET_FIELD_ID(gInputWindowHandleClassInfo.name, clazz,
245 "name", "Ljava/lang/String;");
246
247 GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsFlags, clazz,
248 "layoutParamsFlags", "I");
249
250 GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsPrivateFlags, clazz,
251 "layoutParamsPrivateFlags", "I");
252
253 GET_FIELD_ID(gInputWindowHandleClassInfo.layoutParamsType, clazz,
254 "layoutParamsType", "I");
255
256 GET_FIELD_ID(gInputWindowHandleClassInfo.dispatchingTimeoutNanos, clazz,
257 "dispatchingTimeoutNanos", "J");
258
259 GET_FIELD_ID(gInputWindowHandleClassInfo.frameLeft, clazz,
260 "frameLeft", "I");
261
262 GET_FIELD_ID(gInputWindowHandleClassInfo.frameTop, clazz,
263 "frameTop", "I");
264
265 GET_FIELD_ID(gInputWindowHandleClassInfo.frameRight, clazz,
266 "frameRight", "I");
267
268 GET_FIELD_ID(gInputWindowHandleClassInfo.frameBottom, clazz,
269 "frameBottom", "I");
270
271 GET_FIELD_ID(gInputWindowHandleClassInfo.scaleFactor, clazz,
272 "scaleFactor", "F");
273
274 GET_FIELD_ID(gInputWindowHandleClassInfo.touchableRegion, clazz,
275 "touchableRegion", "Landroid/graphics/Region;");
276
277 GET_FIELD_ID(gInputWindowHandleClassInfo.visible, clazz,
278 "visible", "Z");
279
280 GET_FIELD_ID(gInputWindowHandleClassInfo.canReceiveKeys, clazz,
281 "canReceiveKeys", "Z");
282
283 GET_FIELD_ID(gInputWindowHandleClassInfo.hasFocus, clazz,
284 "hasFocus", "Z");
285
286 GET_FIELD_ID(gInputWindowHandleClassInfo.hasWallpaper, clazz,
287 "hasWallpaper", "Z");
288
289 GET_FIELD_ID(gInputWindowHandleClassInfo.paused, clazz,
290 "paused", "Z");
291
292 GET_FIELD_ID(gInputWindowHandleClassInfo.layer, clazz,
293 "layer", "I");
294
295 GET_FIELD_ID(gInputWindowHandleClassInfo.ownerPid, clazz,
296 "ownerPid", "I");
297
298 GET_FIELD_ID(gInputWindowHandleClassInfo.ownerUid, clazz,
299 "ownerUid", "I");
300
301 GET_FIELD_ID(gInputWindowHandleClassInfo.inputFeatures, clazz,
302 "inputFeatures", "I");
303
304 GET_FIELD_ID(gInputWindowHandleClassInfo.displayId, clazz,
305 "displayId", "I");
306 return 0;
307 }
308
309 } /* namespace android */
310