From 6a6ca22ebeac6e167614228f03eae30a100d546d Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Sat, 5 Nov 2022 19:24:14 -0500
Subject: [PATCH] Furnace has stopped.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

• Diagnose later
---
 src/gui/fileDialog.cpp | 50 ++++++++++++++++++++++++++++++++++++++++++
 src/gui/fileDialog.h   |  9 ++++++++
 src/gui/settings.cpp   |  3 +--
 3 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/src/gui/fileDialog.cpp b/src/gui/fileDialog.cpp
index 8d524ab4..c5103019 100644
--- a/src/gui/fileDialog.cpp
+++ b/src/gui/fileDialog.cpp
@@ -4,6 +4,8 @@
 
 #ifdef USE_NFD
 #include <nfd.h>
+#elif defined(ANDROID)
+#include <SDL.h>
 #else
 #include "../../extern/pfd-fixed/portable-file-dialogs.h"
 #endif
@@ -87,6 +89,45 @@ bool FurnaceGUIFileDialog::openLoad(String header, std::vector<String> filter, c
 #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","()B");
+
+    if (showFileDialog==NULL) {
+      logE("method showFileDialog not found!");
+      hasError=true;
+      jniEnv->DeleteLocalRef(class_);
+      jniEnv->DeleteLocalRef(activity);
+      return false;
+    }
+
+    jboolean mret=jniEnv->CallBooleanMethod(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();
@@ -113,6 +154,8 @@ bool FurnaceGUIFileDialog::openSave(String header, std::vector<String> filter, c
 #else
     dialogS=new std::thread(_nfdThread,NFDState(true,header,filter,path,NULL,false),&dialogOK,&nfdResult,&hasError);
 #endif
+#elif defined(ANDROID)
+    hasError=true; // TODO
 #else
     dialogS=new pfd::save_file(header,path,filter);
     hasError=!pfd::settings::available();
@@ -141,7 +184,9 @@ void FurnaceGUIFileDialog::close() {
 #ifdef USE_NFD
         dialogS->join();
 #endif
+#ifndef ANDROID
         delete dialogS;
+#endif
         dialogS=NULL;
       }
     } else {
@@ -149,7 +194,9 @@ void FurnaceGUIFileDialog::close() {
 #ifdef USE_NFD
         dialogO->join();
 #endif
+#ifndef ANDROID
         delete dialogO;
+#endif
         dialogO=NULL;
       }
     }
@@ -179,6 +226,9 @@ bool FurnaceGUIFileDialog::render(const ImVec2& min, const ImVec2& max) {
       return true;
     }
     return false;
+#elif defined(ANDROID)
+    // TODO: detect when file picker is closed
+    return false;
 #else
     if (saving) {
       if (dialogS!=NULL) {
diff --git a/src/gui/fileDialog.h b/src/gui/fileDialog.h
index 7990b037..0fbeeb46 100644
--- a/src/gui/fileDialog.h
+++ b/src/gui/fileDialog.h
@@ -15,6 +15,8 @@
 #define NFD_NON_THREADED
 #endif
 
+#elif defined(ANDROID)
+#include <jni.h>
 #else
 namespace pfd {
   class open_file;
@@ -36,6 +38,10 @@ class FurnaceGUIFileDialog {
   std::thread* dialogS;
   std::atomic<bool> dialogOK;
   std::vector<String> nfdResult;
+#elif defined(ANDROID)
+  JNIEnv* jniEnv;
+  void* dialogO;
+  void* dialogS;
 #else
   pfd::open_file* dialogO;
   pfd::save_file* dialogS;
@@ -55,6 +61,9 @@ class FurnaceGUIFileDialog {
       opened(false),
       saving(false),
       hasError(false),
+#ifdef ANDROID
+      jniEnv(NULL),
+#endif
       dialogO(NULL),
       dialogS(NULL) {}
 };
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index 13844302..a05c98cc 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -40,9 +40,8 @@
 #define POWER_SAVE_DEFAULT 0
 #endif
 
-#if defined(__HAIKU__) || defined(IS_MOBILE)
+#if defined(__HAIKU__)
 // NFD doesn't support Haiku
-// I still haven't implemented Android file picker
 #define SYS_FILE_DIALOG_DEFAULT 0
 #else
 #define SYS_FILE_DIALOG_DEFAULT 1