1/* 2 * Copyright (C) 2016 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#ifndef PDF_UTILS_H_ 18#define PDF_UTILS_H_ 19 20#include "jni.h" 21 22namespace android { 23 24int getBlock(void* param, unsigned long position, unsigned char* outBuffer, 25 unsigned long size); 26 27bool forwardPdfiumError(JNIEnv* env); 28 29#define HANDLE_PDFIUM_ERROR_STATE(env) \ 30 { \ 31 bool isExceptionPending = forwardPdfiumError(env); \ 32 if (isExceptionPending) { \ 33 return; \ 34 } \ 35 } 36 37#define HANDLE_PDFIUM_ERROR_STATE_WITH_RET_CODE(env, retCode) \ 38 { \ 39 bool isExceptionPending = forwardPdfiumError(env); \ 40 if (isExceptionPending) { \ 41 return retCode; \ 42 } \ 43 } 44 45jlong nativeOpen(JNIEnv* env, jclass thiz, jint fd, jlong size); 46void nativeClose(JNIEnv* env, jclass thiz, jlong documentPtr); 47 48jint nativeGetPageCount(JNIEnv* env, jclass thiz, jlong documentPtr); 49jboolean nativeScaleForPrinting(JNIEnv* env, jclass thiz, jlong documentPtr); 50 51}; 52 53#endif /* PDF_UTILS_H_ */ 54