godot/platform/android/dir_access_jandroid.cpp

/*************************************************************************/
/*  dir_access_jandroid.cpp                                              */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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#ifndef ANDROID_NATIVE_ACTIVITY

#include "dir_access_jandroid.h"
#include "file_access_jandroid.h"
#include "thread_jandroid.h"
#include "print_string.h"


jobject DirAccessJAndroid::io=NULL;
jclass DirAccessJAndroid::cls=NULL;
jmethodID DirAccessJAndroid::_dir_open=NULL;
jmethodID DirAccessJAndroid::_dir_next=NULL;
jmethodID DirAccessJAndroid::_dir_close=NULL;
jmethodID DirAccessJAndroid::_dir_is_dir=NULL;


DirAccess *DirAccessJAndroid::create_fs() {

	return memnew(DirAccessJAndroid);
}

bool DirAccessJAndroid::list_dir_begin() {

	list_dir_end();
	JNIEnv *env = ThreadAndroid::get_env();

	jstring js = env->NewStringUTF(current_dir.utf8().get_data());
	int res = env->CallIntMethod(io,_dir_open,js);
	if (res<=0)
		return true;

	id=res;

	return false;
}

String DirAccessJAndroid::get_next(){

	ERR_FAIL_COND_V(id==0,"");

	JNIEnv *env = ThreadAndroid::get_env();
	jstring str= (jstring)env->CallObjectMethod(io,_dir_next,id);
	if (!str)
		return "";

	String ret = String::utf8(env->GetStringUTFChars( (jstring)str, NULL ));
	env->DeleteLocalRef((jobject)str);
	return ret;

}

bool DirAccessJAndroid::current_is_dir() const{


	JNIEnv *env = ThreadAndroid::get_env();

	return env->CallBooleanMethod(io,_dir_is_dir,id);

}

bool DirAccessJAndroid::current_is_hidden() const {

	return current!="." && current!=".." && current.begins_with(".");
}

void DirAccessJAndroid::list_dir_end(){

	if (id==0)
		return;

	JNIEnv *env = ThreadAndroid::get_env();
	env->CallVoidMethod(io,_dir_close,id);
	id=0;


}

int DirAccessJAndroid::get_drive_count(){

	return 0;
}

String DirAccessJAndroid::get_drive(int p_drive){

	return "";
}

Error DirAccessJAndroid::change_dir(String p_dir){

	JNIEnv *env = ThreadAndroid::get_env();
	p_dir=p_dir.simplify_path();

	if (p_dir=="" || p_dir=="." || (p_dir==".." && current_dir==""))
		return OK;

	String new_dir;

	if (p_dir!="res://" && p_dir.length()>1 && p_dir.ends_with("/"))
		p_dir=p_dir.substr(0,p_dir.length()-1);

	if (p_dir.begins_with("/"))
		new_dir=p_dir.substr(1,p_dir.length());
	else if (p_dir.begins_with("res://"))
		new_dir=p_dir.substr(6,p_dir.length());
	else if (current_dir=="")
		new_dir=p_dir;
	else
		new_dir=current_dir.plus_file(p_dir);

	//print_line("new dir is: "+new_dir);
//test if newdir exists
	new_dir=new_dir.simplify_path();

	jstring js = env->NewStringUTF(new_dir.utf8().get_data());
	int res = env->CallIntMethod(io,_dir_open,js);
	env->DeleteLocalRef(js);
	if (res<=0)
		return ERR_INVALID_PARAMETER;

	env->CallVoidMethod(io,_dir_close,res);

	current_dir=new_dir;

	return OK;
}

String DirAccessJAndroid::get_current_dir(){

	return "/"+current_dir;
}

bool DirAccessJAndroid::file_exists(String p_file){

	JNIEnv *env = ThreadAndroid::get_env();
	String sd;
	if (current_dir=="")
		sd=p_file;
	else
		sd=current_dir.plus_file(p_file);

	FileAccessJAndroid *f = memnew(FileAccessJAndroid);
	bool exists = f->file_exists(sd);
	memdelete(f);

	return exists;
}

bool DirAccessJAndroid::dir_exists(String p_dir) {

	JNIEnv *env = ThreadAndroid::get_env();

	String sd;


	if (current_dir=="")
		sd=p_dir;
	else {
		if (p_dir.is_rel_path())
			sd=current_dir.plus_file(p_dir);
		else
			sd=fix_path(p_dir);
	}

	String path=sd.simplify_path();

	if (path.begins_with("/"))
		path=path.substr(1,path.length());
	else if (path.begins_with("res://"))
		path=path.substr(6,path.length());

	jstring js = env->NewStringUTF(path.utf8().get_data());
	int res = env->CallIntMethod(io,_dir_open,js);
	env->DeleteLocalRef(js);
	if (res<=0)
		return false;

	env->CallVoidMethod(io,_dir_close,res);
	env->DeleteLocalRef(js);

	return true;
}

Error DirAccessJAndroid::make_dir(String p_dir){

	ERR_FAIL_V(ERR_UNAVAILABLE);
}

Error DirAccessJAndroid::rename(String p_from, String p_to){

	ERR_FAIL_V(ERR_UNAVAILABLE);
}

Error DirAccessJAndroid::remove(String p_name){

	ERR_FAIL_V(ERR_UNAVAILABLE);
}

//FileType get_file_type() const;
size_t DirAccessJAndroid::get_space_left() {

	return 0;
}


void DirAccessJAndroid::setup( jobject p_io) {


	JNIEnv *env = ThreadAndroid::get_env();
	io=p_io;
	__android_log_print(ANDROID_LOG_INFO,"godot","STEP7");

	jclass c = env->GetObjectClass(io);
	cls = (jclass)env->NewGlobalRef(c);
	__android_log_print(ANDROID_LOG_INFO,"godot","STEP8");

	_dir_open = env->GetMethodID(cls, "dir_open", "(Ljava/lang/String;)I");
	if(_dir_open != 0) {
		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _dir_open ok!!");
	}
	_dir_next = env->GetMethodID(cls, "dir_next", "(I)Ljava/lang/String;");
	if(_dir_next != 0) {
		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _dir_next ok!!");
	}
	_dir_close = env->GetMethodID(cls, "dir_close", "(I)V");
	if(_dir_close != 0) {
		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _dir_close ok!!");
	}
	_dir_is_dir = env->GetMethodID(cls, "dir_is_dir", "(I)Z");
	if(_dir_is_dir != 0) {
		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _dir_is_dir ok!!");
	}

//	(*env)->CallVoidMethod(env,obj,aMethodID, myvar);
}


DirAccessJAndroid::DirAccessJAndroid() {

	id=0;
}

DirAccessJAndroid::~DirAccessJAndroid() {

	list_dir_end();;
}
#endif