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	Cases where the end position is either equvalent to the default or past the end of the string.
		
			
				
	
	
		
			364 lines
		
	
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			364 lines
		
	
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/**************************************************************************/
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/*  dir_access_jandroid.cpp                                               */
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/**************************************************************************/
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/*                         This file is part of:                          */
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/*                             GODOT ENGINE                               */
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/*                        https://godotengine.org                         */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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/*                                                                        */
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/* Permission is hereby granted, free of charge, to any person obtaining  */
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/* a copy of this software and associated documentation files (the        */
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/* "Software"), to deal in the Software without restriction, including    */
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/* without limitation the rights to use, copy, modify, merge, publish,    */
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/* distribute, sublicense, and/or sell copies of the Software, and to     */
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/* permit persons to whom the Software is furnished to do so, subject to  */
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/* the following conditions:                                              */
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/*                                                                        */
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/* The above copyright notice and this permission notice shall be         */
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/* included in all copies or substantial portions of the Software.        */
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/*                                                                        */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
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/**************************************************************************/
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#include "dir_access_jandroid.h"
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#include "jni_utils.h"
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#include "thread_jandroid.h"
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#include "core/string/print_string.h"
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jobject DirAccessJAndroid::dir_access_handler = nullptr;
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jclass DirAccessJAndroid::cls = nullptr;
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jmethodID DirAccessJAndroid::_dir_open = nullptr;
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jmethodID DirAccessJAndroid::_dir_next = nullptr;
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jmethodID DirAccessJAndroid::_dir_close = nullptr;
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jmethodID DirAccessJAndroid::_dir_is_dir = nullptr;
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jmethodID DirAccessJAndroid::_dir_exists = nullptr;
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jmethodID DirAccessJAndroid::_file_exists = nullptr;
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jmethodID DirAccessJAndroid::_get_drive_count = nullptr;
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jmethodID DirAccessJAndroid::_get_drive = nullptr;
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jmethodID DirAccessJAndroid::_make_dir = nullptr;
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jmethodID DirAccessJAndroid::_get_space_left = nullptr;
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jmethodID DirAccessJAndroid::_rename = nullptr;
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jmethodID DirAccessJAndroid::_remove = nullptr;
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jmethodID DirAccessJAndroid::_current_is_hidden = nullptr;
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Error DirAccessJAndroid::list_dir_begin() {
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	list_dir_end();
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	int res = dir_open(current_dir);
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	if (res <= 0) {
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		return ERR_CANT_OPEN;
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	}
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	id = res;
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	return OK;
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}
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String DirAccessJAndroid::get_next() {
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	ERR_FAIL_COND_V(id == 0, "");
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	if (_dir_next) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, "");
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		jstring str = (jstring)env->CallObjectMethod(dir_access_handler, _dir_next, id);
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		if (!str) {
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			return "";
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		}
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		String ret = jstring_to_string((jstring)str, env);
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		env->DeleteLocalRef((jobject)str);
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		return ret;
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	} else {
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		return "";
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	}
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}
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bool DirAccessJAndroid::current_is_dir() const {
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	if (_dir_is_dir) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, false);
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		return env->CallBooleanMethod(dir_access_handler, _dir_is_dir, id);
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	} else {
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		return false;
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	}
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}
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bool DirAccessJAndroid::current_is_hidden() const {
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	if (_current_is_hidden) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, false);
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		return env->CallBooleanMethod(dir_access_handler, _current_is_hidden, id);
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	}
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	return false;
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}
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void DirAccessJAndroid::list_dir_end() {
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	if (id == 0) {
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		return;
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	}
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	dir_close(id);
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	id = 0;
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}
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int DirAccessJAndroid::get_drive_count() {
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	if (_get_drive_count) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, 0);
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		return env->CallIntMethod(dir_access_handler, _get_drive_count, get_access_type());
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	} else {
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		return 0;
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	}
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}
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String DirAccessJAndroid::get_drive(int p_drive) {
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	if (_get_drive) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, "");
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		jstring j_drive = (jstring)env->CallObjectMethod(dir_access_handler, _get_drive, get_access_type(), p_drive);
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		if (!j_drive) {
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			return "";
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		}
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		String drive = jstring_to_string(j_drive, env);
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		env->DeleteLocalRef(j_drive);
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		return drive;
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	} else {
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		return "";
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	}
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}
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String DirAccessJAndroid::_get_root_string() const {
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	if (get_access_type() == ACCESS_FILESYSTEM) {
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		return "/";
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	}
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	return DirAccessUnix::_get_root_string();
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}
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String DirAccessJAndroid::get_current_dir(bool p_include_drive) const {
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	String base = _get_root_path();
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	String bd = current_dir;
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	if (!base.is_empty()) {
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		bd = current_dir.replace_first(base, "");
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	}
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	String root_string = _get_root_string();
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	if (bd.begins_with(root_string)) {
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		return bd;
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	} else if (bd.begins_with("/")) {
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		return root_string + bd.substr(1);
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	} else {
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		return root_string + bd;
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	}
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}
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Error DirAccessJAndroid::change_dir(String p_dir) {
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	String new_dir = get_absolute_path(p_dir);
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	if (new_dir == current_dir) {
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		return OK;
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	}
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	if (!dir_exists(new_dir)) {
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		return ERR_INVALID_PARAMETER;
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	}
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	current_dir = new_dir;
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	return OK;
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}
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String DirAccessJAndroid::get_absolute_path(String p_path) {
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	if (current_dir != "" && p_path == current_dir) {
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		return current_dir;
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	}
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	if (p_path.is_relative_path()) {
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		p_path = get_current_dir().path_join(p_path);
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	}
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	p_path = fix_path(p_path);
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	p_path = p_path.simplify_path();
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	return p_path;
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}
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bool DirAccessJAndroid::file_exists(String p_file) {
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	if (_file_exists) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, false);
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		String path = get_absolute_path(p_file);
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		jstring j_path = env->NewStringUTF(path.utf8().get_data());
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		bool result = env->CallBooleanMethod(dir_access_handler, _file_exists, get_access_type(), j_path);
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		env->DeleteLocalRef(j_path);
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		return result;
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	} else {
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		return false;
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	}
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}
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bool DirAccessJAndroid::dir_exists(String p_dir) {
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	if (_dir_exists) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, false);
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		String path = get_absolute_path(p_dir);
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		jstring j_path = env->NewStringUTF(path.utf8().get_data());
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		bool result = env->CallBooleanMethod(dir_access_handler, _dir_exists, get_access_type(), j_path);
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		env->DeleteLocalRef(j_path);
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		return result;
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	} else {
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		return false;
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	}
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}
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Error DirAccessJAndroid::make_dir(String p_dir) {
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	// Check if the directory exists already
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	if (dir_exists(p_dir)) {
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		return ERR_ALREADY_EXISTS;
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	}
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	if (_make_dir) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, ERR_UNCONFIGURED);
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		String path = get_absolute_path(p_dir);
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		jstring j_dir = env->NewStringUTF(path.utf8().get_data());
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		bool result = env->CallBooleanMethod(dir_access_handler, _make_dir, get_access_type(), j_dir);
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		env->DeleteLocalRef(j_dir);
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		if (result) {
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			return OK;
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		} else {
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			return FAILED;
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		}
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	} else {
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		return ERR_UNCONFIGURED;
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	}
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}
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Error DirAccessJAndroid::make_dir_recursive(const String &p_dir) {
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	Error err = make_dir(p_dir);
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	if (err != OK && err != ERR_ALREADY_EXISTS) {
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		ERR_FAIL_V_MSG(err, "Could not create directory: " + p_dir);
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	}
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	return OK;
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}
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Error DirAccessJAndroid::rename(String p_from, String p_to) {
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	if (_rename) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, ERR_UNCONFIGURED);
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		String from_path = get_absolute_path(p_from);
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		jstring j_from = env->NewStringUTF(from_path.utf8().get_data());
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		String to_path = get_absolute_path(p_to);
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		jstring j_to = env->NewStringUTF(to_path.utf8().get_data());
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		bool result = env->CallBooleanMethod(dir_access_handler, _rename, get_access_type(), j_from, j_to);
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		env->DeleteLocalRef(j_from);
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		env->DeleteLocalRef(j_to);
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		if (result) {
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			return OK;
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		} else {
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			return FAILED;
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		}
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	} else {
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		return ERR_UNCONFIGURED;
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	}
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}
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Error DirAccessJAndroid::remove(String p_name) {
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	if (_remove) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, ERR_UNCONFIGURED);
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		String path = get_absolute_path(p_name);
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		jstring j_name = env->NewStringUTF(path.utf8().get_data());
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		bool result = env->CallBooleanMethod(dir_access_handler, _remove, get_access_type(), j_name);
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		env->DeleteLocalRef(j_name);
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		if (result) {
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			return OK;
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		} else {
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			return FAILED;
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		}
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	} else {
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		return ERR_UNCONFIGURED;
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	}
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}
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uint64_t DirAccessJAndroid::get_space_left() {
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	if (_get_space_left) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, 0);
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		return env->CallLongMethod(dir_access_handler, _get_space_left, get_access_type());
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	} else {
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		return 0;
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	}
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}
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void DirAccessJAndroid::setup(jobject p_dir_access_handler) {
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	JNIEnv *env = get_jni_env();
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	dir_access_handler = env->NewGlobalRef(p_dir_access_handler);
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	jclass c = env->GetObjectClass(dir_access_handler);
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	cls = (jclass)env->NewGlobalRef(c);
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	_dir_open = env->GetMethodID(cls, "dirOpen", "(ILjava/lang/String;)I");
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	_dir_next = env->GetMethodID(cls, "dirNext", "(I)Ljava/lang/String;");
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	_dir_close = env->GetMethodID(cls, "dirClose", "(I)V");
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	_dir_is_dir = env->GetMethodID(cls, "dirIsDir", "(I)Z");
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	_dir_exists = env->GetMethodID(cls, "dirExists", "(ILjava/lang/String;)Z");
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	_file_exists = env->GetMethodID(cls, "fileExists", "(ILjava/lang/String;)Z");
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	_get_drive_count = env->GetMethodID(cls, "getDriveCount", "(I)I");
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	_get_drive = env->GetMethodID(cls, "getDrive", "(II)Ljava/lang/String;");
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	_make_dir = env->GetMethodID(cls, "makeDir", "(ILjava/lang/String;)Z");
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	_get_space_left = env->GetMethodID(cls, "getSpaceLeft", "(I)J");
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	_rename = env->GetMethodID(cls, "rename", "(ILjava/lang/String;Ljava/lang/String;)Z");
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	_remove = env->GetMethodID(cls, "remove", "(ILjava/lang/String;)Z");
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	_current_is_hidden = env->GetMethodID(cls, "isCurrentHidden", "(I)Z");
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}
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void DirAccessJAndroid::terminate() {
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	JNIEnv *env = get_jni_env();
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	ERR_FAIL_NULL(env);
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	env->DeleteGlobalRef(cls);
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	env->DeleteGlobalRef(dir_access_handler);
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}
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DirAccessJAndroid::DirAccessJAndroid() {
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}
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DirAccessJAndroid::~DirAccessJAndroid() {
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	list_dir_end();
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}
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int DirAccessJAndroid::dir_open(String p_path) {
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	if (_dir_open) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL_V(env, 0);
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		String path = get_absolute_path(p_path);
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		jstring js = env->NewStringUTF(path.utf8().get_data());
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		int dirId = env->CallIntMethod(dir_access_handler, _dir_open, get_access_type(), js);
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		env->DeleteLocalRef(js);
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		return dirId;
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	} else {
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		return 0;
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	}
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}
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void DirAccessJAndroid::dir_close(int p_id) {
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	if (_dir_close) {
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		JNIEnv *env = get_jni_env();
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		ERR_FAIL_NULL(env);
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		env->CallVoidMethod(dir_access_handler, _dir_close, p_id);
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	}
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}
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