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furnace/src/gui/fileDialog.cpp

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C++
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#include "fileDialog.h"
#include "ImGuiFileDialog.h"
#include "util.h"
#include "../ta-log.h"
#ifdef USE_NFD
#include <nfd.h>
#elif defined(ANDROID)
#include <SDL.h>
#else
#include "../../extern/pfd-fixed/portable-file-dialogs.h"
#endif
#ifdef USE_NFD
struct NFDState {
bool isSave, allowMultiple;
String header;
std::vector<String> filter;
String path;
FileDialogSelectCallback clickCallback;
NFDState(bool save, String h, std::vector<String> filt, String pa, FileDialogSelectCallback cc, bool multi):
isSave(save),
allowMultiple(multi),
header(h),
filter(filt),
path(pa),
clickCallback(cc) {
}
};
void _nfdThread(const NFDState state, std::atomic<bool>* ok, std::vector<String>* result, bool* errorOutput) {
nfdchar_t* out=NULL;
nfdresult_t ret=NFD_CANCEL;
(*errorOutput)=false;
nfdpathset_t paths;
result->clear();
if (state.isSave) {
ret=NFD_SaveDialog(state.filter,state.path.c_str(),&out,state.clickCallback);
} else {
if (state.allowMultiple) {
ret=NFD_OpenDialogMultiple(state.filter,state.path.c_str(),&paths,state.clickCallback);
} else {
ret=NFD_OpenDialog(state.filter,state.path.c_str(),&out,state.clickCallback);
}
}
switch (ret) {
case NFD_OKAY:
if (state.allowMultiple) {
logD("pushing multi path");
for (size_t i=0; i<NFD_PathSet_GetCount(&paths); i++) {
result->push_back(String(NFD_PathSet_GetPath(&paths,i)));
}
NFD_PathSet_Free(&paths);
} else {
logD("pushing single path");
if (out!=NULL) {
logD("we have it");
result->push_back(String(out));
}
}
break;
case NFD_CANCEL:
break;
case NFD_ERROR:
logE("NFD error! %s\n",NFD_GetError());
(*errorOutput)=true;
break;
default:
logE("NFD unknown return code %d!\n",(int)ret);
break;
}
(*ok)=true;
}
#endif
void FurnaceGUIFileDialog::convertFilterList(std::vector<String>& filter) {
memset(noSysFilter,0,4096);
String result;
for (size_t i=0; (i+1)<filter.size(); i+=2) {
String label=filter[i];
String ext;
if (filter[i+1]=="*") {
ext=".*";
} else for (char i: filter[i+1]) {
switch (i) {
case '*':
break;
case ' ':
ext+=',';
break;
default:
ext+=i;
break;
}
}
if (!result.empty()) result+=',';
result+=fmt::sprintf("%s{%s}",label,ext);
}
strncpy(noSysFilter,result.c_str(),4095);
}
bool FurnaceGUIFileDialog::openLoad(String header, std::vector<String> filter, String path, double dpiScale, FileDialogSelectCallback clickCallback, bool allowMultiple) {
if (opened) return false;
saving=false;
curPath=path;
// strip excess directory separators
while (!curPath.empty()) {
if (curPath[curPath.size()-1]!=DIR_SEPARATOR) break;
curPath.erase(curPath.size()-1);
}
curPath+=DIR_SEPARATOR;
logD("opening load file dialog with curPath %s",curPath.c_str());
if (sysDialog) {
#ifdef USE_NFD
dialogOK=false;
#ifdef NFD_NON_THREADED
_nfdThread(NFDState(false,header,filter,path,clickCallback,allowMultiple),&dialogOK,&nfdResult,&hasError);
#else
dialogO=new std::thread(_nfdThread,NFDState(false,header,filter,path,clickCallback,allowMultiple),&dialogOK,&nfdResult,&hasError);
#endif
#elif defined(ANDROID)
hasError=false;
if (jniEnv==NULL) {
jniEnv=(JNIEnv*)SDL_AndroidGetJNIEnv();
if (jniEnv==NULL) {
hasError=true;
logE("could not acquire JNI env!");
return false;
}
}
jobject activity=(jobject)SDL_AndroidGetActivity();
if (activity==NULL) {
hasError=true;
logE("the Activity is NULL!");
return false;
}
jclass class_=jniEnv->GetObjectClass(activity);
jmethodID showFileDialog=jniEnv->GetMethodID(class_,"showFileDialog","()V");
if (showFileDialog==NULL) {
logE("method showFileDialog not found!");
hasError=true;
jniEnv->DeleteLocalRef(class_);
jniEnv->DeleteLocalRef(activity);
return false;
}
jniEnv->CallVoidMethod(activity,showFileDialog);
/*if (!(bool)mret) {
hasError=true;
logW("could not open Android file picker...");
}*/
jniEnv->DeleteLocalRef(class_);
jniEnv->DeleteLocalRef(activity);
return true;
#else
dialogO=new pfd::open_file(header,path,filter,allowMultiple?(pfd::opt::multiselect):(pfd::opt::none));
hasError=!pfd::settings::available();
#endif
} else {
hasError=false;
#ifdef ANDROID
if (!SDL_AndroidRequestPermission("android.permission.READ_EXTERNAL_STORAGE")) {
return false;
}
#endif
convertFilterList(filter);
ImGuiFileDialog::Instance()->singleClickSel=mobileUI;
ImGuiFileDialog::Instance()->DpiScale=dpiScale;
ImGuiFileDialog::Instance()->mobileMode=mobileUI;
ImGuiFileDialog::Instance()->homePath=getHomeDir();
ImGuiFileDialog::Instance()->OpenModal("FileDialog",header,noSysFilter,path,allowMultiple?999:1,nullptr,0,clickCallback);
}
opened=true;
return true;
}
bool FurnaceGUIFileDialog::openSave(String header, std::vector<String> filter, String path, double dpiScale) {
if (opened) return false;
#ifdef ANDROID
if (!SDL_AndroidRequestPermission("android.permission.WRITE_EXTERNAL_STORAGE")) {
return false;
}
#endif
saving=true;
curPath=path;
// strip excess directory separators
while (!curPath.empty()) {
if (curPath[curPath.size()-1]!=DIR_SEPARATOR) break;
curPath.erase(curPath.size()-1);
}
curPath+=DIR_SEPARATOR;
logD("opening save file dialog with curPath %s",curPath.c_str());
if (sysDialog) {
#ifdef USE_NFD
dialogOK=false;
#ifdef NFD_NON_THREADED
_nfdThread(NFDState(true,header,filter,path,NULL,false),&dialogOK,&nfdResult,&hasError);
#else
dialogS=new std::thread(_nfdThread,NFDState(true,header,filter,path,NULL,false),&dialogOK,&nfdResult,&hasError);
#endif
#elif defined(ANDROID)
hasError=false;
if (jniEnv==NULL) {
jniEnv=(JNIEnv*)SDL_AndroidGetJNIEnv();
if (jniEnv==NULL) {
hasError=true;
logE("could not acquire JNI env!");
return false;
}
}
jobject activity=(jobject)SDL_AndroidGetActivity();
if (activity==NULL) {
hasError=true;
logE("the Activity is NULL!");
return false;
}
jclass class_=jniEnv->GetObjectClass(activity);
jmethodID showSaveFileDialog=jniEnv->GetMethodID(class_,"showSaveFileDialog","()V");
if (showSaveFileDialog==NULL) {
logE("method showSaveFileDialog not found!");
hasError=true;
jniEnv->DeleteLocalRef(class_);
jniEnv->DeleteLocalRef(activity);
return false;
}
jniEnv->CallVoidMethod(activity,showSaveFileDialog);
/*if (!(bool)mret) {
hasError=true;
logW("could not open Android file picker...");
}*/
jniEnv->DeleteLocalRef(class_);
jniEnv->DeleteLocalRef(activity);
return true;
#else
dialogS=new pfd::save_file(header,path,filter);
hasError=!pfd::settings::available();
#endif
} else {
hasError=false;
convertFilterList(filter);
ImGuiFileDialog::Instance()->singleClickSel=false;
ImGuiFileDialog::Instance()->DpiScale=dpiScale;
ImGuiFileDialog::Instance()->mobileMode=mobileUI;
ImGuiFileDialog::Instance()->homePath=getHomeDir();
ImGuiFileDialog::Instance()->OpenModal("FileDialog",header,noSysFilter,path,1,nullptr,ImGuiFileDialogFlags_ConfirmOverwrite);
}
opened=true;
return true;
}
bool FurnaceGUIFileDialog::accepted() {
if (sysDialog) {
return (!fileName.empty());
} else {
return ImGuiFileDialog::Instance()->IsOk();
}
}
void FurnaceGUIFileDialog::close() {
if (sysDialog) {
if (saving) {
if (dialogS!=NULL) {
#ifdef USE_NFD
dialogS->join();
#endif
#ifndef ANDROID
delete dialogS;
#endif
dialogS=NULL;
}
} else {
if (dialogO!=NULL) {
#ifdef USE_NFD
dialogO->join();
#endif
#ifndef ANDROID
delete dialogO;
#endif
dialogO=NULL;
}
}
#ifdef USE_NFD
dialogOK=false;
#endif
} else {
ImGuiFileDialog::Instance()->Close();
}
opened=false;
}
bool FurnaceGUIFileDialog::render(const ImVec2& min, const ImVec2& max) {
if (sysDialog) {
#ifdef USE_NFD
if (dialogOK) {
fileName.clear();
fileName=nfdResult;
if (!fileName.empty()) {
size_t dsPos=fileName[0].rfind(DIR_SEPARATOR);
if (dsPos!=String::npos) curPath=fileName[0].substr(0,dsPos);
}
for (String& i: fileName) {
logD("- returning %s",i);
}
dialogOK=false;
return true;
}
return false;
#elif defined(ANDROID)
// TODO: detect when file picker is closed
return false;
#else
if (saving) {
if (dialogS!=NULL) {
if (dialogS->ready(0)) {
fileName.clear();
fileName.push_back(dialogS->result());
size_t dsPos=fileName[0].rfind(DIR_SEPARATOR);
if (dsPos!=String::npos) curPath=fileName[0].substr(0,dsPos);
logD("returning %s",fileName[0]);
return true;
}
}
} else {
if (dialogO!=NULL) {
if (dialogO->ready(0)) {
if (dialogO->result().empty()) {
fileName.clear();
logD("returning nothing");
} else {
fileName=dialogO->result();
if (fileName.empty()) {
// don't touch
} else {
size_t dsPos=fileName[0].rfind(DIR_SEPARATOR);
if (dsPos!=String::npos) curPath=fileName[0].substr(0,dsPos);
for (String& i: fileName) {
logD("- returning %s",i);
}
}
}
return true;
}
}
}
return false;
#endif
} else {
return ImGuiFileDialog::Instance()->Display("FileDialog",ImGuiWindowFlags_NoCollapse|ImGuiWindowFlags_NoMove,min,max);
}
}
bool FurnaceGUIFileDialog::isOpen() {
return opened;
}
bool FurnaceGUIFileDialog::isError() {
return hasError;
}
String FurnaceGUIFileDialog::getPath() {
if (sysDialog) {
if (curPath.size()>1) {
if (curPath[curPath.size()-1]==DIR_SEPARATOR) {
curPath=curPath.substr(0,curPath.size()-1);
}
}
logD("curPath: %s",curPath.c_str());
return curPath;
} else {
return ImGuiFileDialog::Instance()->GetCurrentPath();
}
}
std::vector<String>& FurnaceGUIFileDialog::getFileName() {
if (sysDialog) {
return fileName;
} else {
fileName.clear();
if (saving) {
fileName.push_back(ImGuiFileDialog::Instance()->GetFilePathName());
} else {
for (auto& i: ImGuiFileDialog::Instance()->GetSelection()) {
fileName.push_back(i.second);
}
}
//
return fileName;
}
}
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