fix iOS save picker

PanoPainter/GameViewController.m

@@ -121,6 +121,13 @@ std::recursive_mutex lock_mutex;
     {
         LOG("error creating rec path: %s", [[err localizedDescription] cStringUsingEncoding:NSASCIIStringEncoding]);
     }
+    // tmp
+    NSString* tmppath = [docpath stringByAppendingString:@"/tmp"];
+    App::I->tmp_path = [tmppath cStringUsingEncoding:NSASCIIStringEncoding];
+    if (![[NSFileManager defaultManager] createDirectoryAtPath:tmppath withIntermediateDirectories:YES attributes:nil error:&err])
+    {
+        LOG("error creating rec path: %s", [[err localizedDescription] cStringUsingEncoding:NSASCIIStringEncoding]);
+    }
     // brushes
     if (![[NSFileManager defaultManager] createDirectoryAtPath:[docpath stringByAppendingString:@"/brushes"] withIntermediateDirectories:YES attributes:nil error:&err])
     {
@@ -189,7 +196,7 @@ std::recursive_mutex lock_mutex;
 - (void)pick_file_save:(std::string)path
 {
     NSURL* url = [NSURL fileURLWithPath:[NSString stringWithUTF8String:path.c_str()]];
-    GameFilePicker *picker = [[GameFilePicker alloc] initWithURL:url inMode:UIDocumentPickerModeMoveToService];
+    GameFilePicker *picker = [[GameFilePicker alloc] initWithURL:url inMode:UIDocumentPickerModeExportToService];
     picker.delegate = self;
     [self presentViewController:picker animated:YES completion:NULL];
 }

src/app.cpp

@@ -781,7 +781,7 @@ void App::rec_export(std::string path)
     });
 #endif
 */
-    Canvas::I->m_encoder->write_mp4(data_path + "/export.mp4");
+    Canvas::I->m_encoder->write_mp4(path);
     
     pb->destroy();
 }

src/app.h

@@ -90,6 +90,7 @@ public:
     std::string data_path{ "." };
     std::string work_path{ "." };
     std::string rec_path{ "." };
+    std::string tmp_path{ "." };
     std::thread rec_thread;
     bool rec_running = false;
     int rec_count = 0;
@@ -174,8 +175,8 @@ public:
     void pick_image(std::function<void(std::string path)> callback);
     void pick_file(std::vector<std::string> types, std::function<void(std::string path)> callback);
 #if __IOS__ || __WEB__
-    void pick_file_save(const std::string& type, std::function<void(std::string path)> writer,
-        std::function<void(bool saved)> callback);
+    void pick_file_save(const std::string& type, const std::string& default_name,
+        std::function<void(std::string path)> writer, std::function<void(const std::string& path, bool saved)> callback);
 #else
     void pick_file_save(std::vector<std::string> types, std::function<void(std::string path)> callback);
 #endif

src/app_dialogs.cpp

@@ -624,11 +624,11 @@ void App::dialog_ppbr_export()
         if (dialog->export_check)
             info.export_data = dialog->export_check->checked;
 #if __IOS__ || __WEB__
-        App::I->pick_file_save("ppbr",
+        App::I->pick_file_save("ppbr", "exported-brushes",
             [this, dialog, info] (std::string path) {
                 presets->export_ppbr(path, info);
             },
-            [dialog] (bool saved) {
+            [dialog] (const std::string& path, bool saved) {
                 if (saved)
                     dialog->destroy();
             }
@@ -649,11 +649,11 @@ void App::dialog_ppbr_export()
 void App::dialog_timelapse_export()
 {
 #if __IOS__ || __WEB__
-    pick_file_save("mp4",
+    pick_file_save("mp4", doc_name + "-timelapse",
         [this](std::string path) {
             rec_export(path);
         },
-        [this](bool saved) {
+        [this](const std::string& path, bool saved) {
             message_box("Export Timelapse", "Timelapse exported succesfully.");
         }
     );

src/app_events.cpp

@@ -236,41 +236,29 @@ void App::pick_file(std::vector<std::string> types, std::function<void (std::str
 }
 
 #if __IOS__
-void App::pick_file_save(const std::string& type, std::function<void(std::string)> writer,
-    std::function<void(bool saved)> callback)
+void App::pick_file_save(const std::string& type, const std::string& default_name,
+    std::function<void(std::string)> writer, std::function<void(const std::string& path, bool saved)> callback)
 {
     redraw = true;
-    auto mb = input_box("Insert", "File name");
-    std::string placeholder = "name." + type;
-    mb->m_field_text->set_text(placeholder.c_str());
-    mb->on_submit = [this, writer, type, callback, mb] (Node* target, std::string name) {
     std::string ext = "." + type;
-        std::string path = data_path + "/" + name;
-        if (name.find(ext) == std::string::npos)
-            path += ext;
+    std::string path = tmp_path + "/" + default_name + ext;
     std::thread([=]{
         writer(path);
         dispatch_async(dispatch_get_main_queue(), ^{
             [ios_view pick_file_save:path];
         });
-            mb->destroy();
-            callback(true);
+        callback(path, true);
     }).detach();
-    };
-    mb->btn_cancel->on_click = [=] (Node* target) {
-        callback(false);
-        mb->destroy();
-    };
 }
 #elif __WEB__
-void App::pick_file_save(const std::string& type, std::function<void(std::string)> writer,
-    std::function<void(bool saved)> callback)
+void App::pick_file_save(const std::string& type, const std::string& default_name,
+    std::function<void(std::string)> writer, std::function<void(const std::string& path, bool saved)> callback)
 {
     redraw = true;
-    auto path = data_path + "/file-save." + type;
+    auto path = data_path + "/" + default_name + "." + type;
     LOG("App::pick_file_save %s", path.c_str());
     writer(path);
-    webgl_pick_file_save(path, "file." + type, callback);
+    webgl_pick_file_save(path, default_name + "." + type, callback);
 }
 #else
 void App::pick_file_save(std::vector<std::string> types, std::function<void(std::string)> callback)