/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "PointerIcon-JNI"
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#include <nativehelper/JNIHelp.h>
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#include "android_view_PointerIcon.h"
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#include <android_runtime/AndroidRuntime.h>
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#include <android_runtime/Log.h>
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#include <utils/Log.h>
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#include <android/graphics/GraphicsJNI.h>
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#include <nativehelper/ScopedLocalRef.h>
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#include "core_jni_helpers.h"
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namespace android {
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static struct {
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jclass clazz;
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jfieldID mType;
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jfieldID mBitmap;
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jfieldID mHotSpotX;
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jfieldID mHotSpotY;
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jfieldID mBitmapFrames;
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jfieldID mDurationPerFrame;
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jmethodID getSystemIcon;
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jmethodID load;
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} gPointerIconClassInfo;
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// --- Global Functions ---
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jobject android_view_PointerIcon_getSystemIcon(JNIEnv* env, jobject contextObj, int32_t style) {
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jobject pointerIconObj = env->CallStaticObjectMethod(gPointerIconClassInfo.clazz,
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gPointerIconClassInfo.getSystemIcon, contextObj, style);
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if (env->ExceptionCheck()) {
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ALOGW("An exception occurred while getting a pointer icon with style %d.", style);
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LOGW_EX(env);
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env->ExceptionClear();
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return NULL;
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}
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return pointerIconObj;
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}
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status_t android_view_PointerIcon_load(JNIEnv* env, jobject pointerIconObj, jobject contextObj,
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PointerIcon* outPointerIcon) {
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outPointerIcon->reset();
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if (!pointerIconObj) {
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return OK;
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}
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ScopedLocalRef<jobject> loadedPointerIconObj(env, env->CallObjectMethod(pointerIconObj,
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gPointerIconClassInfo.load, contextObj));
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if (env->ExceptionCheck() || !loadedPointerIconObj.get()) {
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ALOGW("An exception occurred while loading a pointer icon.");
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LOGW_EX(env);
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env->ExceptionClear();
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return UNKNOWN_ERROR;
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}
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return android_view_PointerIcon_getLoadedIcon(env, loadedPointerIconObj.get(), outPointerIcon);
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}
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status_t android_view_PointerIcon_getLoadedIcon(JNIEnv* env, jobject pointerIconObj,
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PointerIcon* outPointerIcon) {
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if (!pointerIconObj) {
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return BAD_VALUE;
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}
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outPointerIcon->style = env->GetIntField(pointerIconObj, gPointerIconClassInfo.mType);
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outPointerIcon->hotSpotX = env->GetFloatField(pointerIconObj, gPointerIconClassInfo.mHotSpotX);
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outPointerIcon->hotSpotY = env->GetFloatField(pointerIconObj, gPointerIconClassInfo.mHotSpotY);
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ScopedLocalRef<jobject> bitmapObj(
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env, env->GetObjectField(pointerIconObj, gPointerIconClassInfo.mBitmap));
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if (bitmapObj.get()) {
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GraphicsJNI::getSkBitmap(env, bitmapObj.get(), &(outPointerIcon->bitmap));
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}
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ScopedLocalRef<jobjectArray> bitmapFramesObj(env, reinterpret_cast<jobjectArray>(
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env->GetObjectField(pointerIconObj, gPointerIconClassInfo.mBitmapFrames)));
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if (bitmapFramesObj.get()) {
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outPointerIcon->durationPerFrame = env->GetIntField(
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pointerIconObj, gPointerIconClassInfo.mDurationPerFrame);
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jsize size = env->GetArrayLength(bitmapFramesObj.get());
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outPointerIcon->bitmapFrames.resize(size);
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for (jsize i = 0; i < size; ++i) {
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ScopedLocalRef<jobject> bitmapObj(env, env->GetObjectArrayElement(bitmapFramesObj.get(), i));
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GraphicsJNI::getSkBitmap(env, bitmapObj.get(), &(outPointerIcon->bitmapFrames[i]));
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}
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}
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return OK;
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}
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status_t android_view_PointerIcon_loadSystemIcon(JNIEnv* env, jobject contextObj,
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int32_t style, PointerIcon* outPointerIcon) {
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jobject pointerIconObj = android_view_PointerIcon_getSystemIcon(env, contextObj, style);
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if (!pointerIconObj) {
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outPointerIcon->reset();
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return UNKNOWN_ERROR;
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}
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status_t status = android_view_PointerIcon_load(env, pointerIconObj,
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contextObj, outPointerIcon);
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env->DeleteLocalRef(pointerIconObj);
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return status;
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}
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// --- JNI Registration ---
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int register_android_view_PointerIcon(JNIEnv* env) {
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jclass clazz = FindClassOrDie(env, "android/view/PointerIcon");
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gPointerIconClassInfo.clazz = MakeGlobalRefOrDie(env, clazz);
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gPointerIconClassInfo.mBitmap = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz,
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"mBitmap", "Landroid/graphics/Bitmap;");
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gPointerIconClassInfo.mType = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz,
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"mType", "I");
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gPointerIconClassInfo.mHotSpotX = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz,
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"mHotSpotX", "F");
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gPointerIconClassInfo.mHotSpotY = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz,
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"mHotSpotY", "F");
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gPointerIconClassInfo.mBitmapFrames = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz,
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"mBitmapFrames", "[Landroid/graphics/Bitmap;");
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gPointerIconClassInfo.mDurationPerFrame = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz,
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"mDurationPerFrame", "I");
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gPointerIconClassInfo.getSystemIcon = GetStaticMethodIDOrDie(env, gPointerIconClassInfo.clazz,
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"getSystemIcon", "(Landroid/content/Context;I)Landroid/view/PointerIcon;");
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gPointerIconClassInfo.load = GetMethodIDOrDie(env, gPointerIconClassInfo.clazz,
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"load", "(Landroid/content/Context;)Landroid/view/PointerIcon;");
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return 0;
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}
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} // namespace android
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