iOS: Implement saving map to external provider (e.g. iCloud)

src/EntityComponents.c

@@ -462,7 +462,6 @@ void LocalInterpComp_SetLocation(struct InterpComp* interp, struct LocationUpdat
 	struct EntityLocation* next = &e->next;
 	cc_uint8 flags      = update->flags;
 	cc_bool interpolate = flags & LU_ORI_INTERPOLATE;
-	float yOffset;
 
 	if (flags & LU_HAS_POS) {
 		LocalInterpComp_SetPosition(update, flags & LU_POS_MODEMASK);

src/Formats.c

@@ -1542,8 +1542,7 @@ cc_result Cw_Save(struct Stream* stream) {
 /*########################################################################################################################*
 *---------------------------------------------------Schematic export------------------------------------------------------*
 *#########################################################################################################################*/
-
-static cc_uint8 sc_begin[78] = {
+static cc_uint8 sc_begin[] = {
 NBT_DICT, 0,9, 'S','c','h','e','m','a','t','i','c',
 	NBT_STR,  0,9,  'M','a','t','e','r','i','a','l','s', 0,7, 'C','l','a','s','s','i','c',
 	NBT_I16,  0,5,  'W','i','d','t','h',                 0,0,
@@ -1551,10 +1550,10 @@ NBT_DICT, 0,9, 'S','c','h','e','m','a','t','i','c',
 	NBT_I16,  0,6,  'L','e','n','g','t','h',             0,0,
 	NBT_I8S,  0,6,  'B','l','o','c','k','s',             0,0,0,0,
 };
-static cc_uint8 sc_data[11] = {
+static cc_uint8 sc_data[] = {
 	NBT_I8S,  0,4,  'D','a','t','a',                     0,0,0,0,
 };
-static cc_uint8 sc_end[37] = {
+static cc_uint8 sc_end[] = {
 	NBT_LIST, 0,8,  'E','n','t','i','t','i','e','s',                 NBT_DICT, 0,0,0,0,
 	NBT_LIST, 0,12, 'T','i','l','e','E','n','t','i','t','i','e','s', NBT_DICT, 0,0,0,0,
 NBT_END,
@@ -1588,6 +1587,10 @@ cc_result Schematic_Save(struct Stream* stream) {
 	return Stream_Write(stream, sc_end, sizeof(sc_end));
 }
 
+
+/*########################################################################################################################*
+*------------------------------------------------------Dat export---------------------------------------------------------*
+*#########################################################################################################################*/
 static const struct JField {
 	cc_uint8 type, isFloat;
 	const char* name;
@@ -1649,10 +1652,8 @@ static cc_result WriteClassDesc(struct Stream* stream, cc_uint8 typecode, const
 
 cc_result Dat_Save(struct Stream* stream) {
 	static const cc_uint8 header[] = {
-		/* DAT signature + version */
-		0x27,0x1B,0xB7,0x88, 0x02,
-		/* JSF signature + version */
-		0xAC,0xED, 0x00,0x05
+		0x27,0x1B,0xB7,0x88, 0x02, /* DAT signature + version */
+		0xAC,0xED, 0x00,0x05       /* JSF signature + version */
 	};
 	const struct JField* field;
 	cc_uint8 tmp[4];

src/Window_Web.c

@@ -586,6 +586,7 @@ cc_result Window_SaveFileDialog(const struct SaveFileDialogArgs* args) {
 	String_Format1(&path, "Downloads/%s", &file);
 
 	args->Callback(&path);
+	/* TODO use utf8 instead */
 	pathBuffer[path.length] = '\0';
 	fileBuffer[file.length] = '\0';
 	return interop_DownloadFile(pathBuffer, fileBuffer);

src/interop_ios.m

@@ -108,7 +108,20 @@ static CGRect GetViewFrame(void) {
     [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
 }
 
-static OpenFileDialogCallback open_dlg_callback;
+// ==== UIDocumentPickerDelegate ====
+static FileDialogCallback open_dlg_callback;
+static char save_buffer[FILENAME_SIZE];
+static cc_string save_path = String_FromArray(save_buffer);
+
+static void DeleteExportTempFile(void) {
+    if (!save_path.length) return;
+    
+    char path[NATIVE_STR_LEN];
+    Platform_EncodeUtf8(path, &save_path);
+    unlink(path);
+    save_path.length = 0;
+}
+
 - (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentAtURL:(NSURL *)url {
     NSString* str    = url.path;
     const char* utf8 = str.UTF8String;
@@ -116,7 +129,15 @@ static OpenFileDialogCallback open_dlg_callback;
     char tmpBuffer[NATIVE_STR_LEN];
     cc_string tmp = String_FromArray(tmpBuffer);
     String_AppendUtf8(&tmp, utf8, String_Length(utf8));
+    
+    DeleteExportTempFile();
+    if (!open_dlg_callback) return;
     open_dlg_callback(&tmp);
+    open_dlg_callback = NULL;
+}
+
+- (void)documentPickerWasCancelled:(UIDocumentPickerViewController *)controller {
+    DeleteExportTempFile();
 }
 
 static cc_bool kb_active;
@@ -514,6 +535,29 @@ cc_result Window_OpenFileDialog(const struct OpenFileDialogArgs* args) {
     return 0; // TODO still unfinished
 }
 
+cc_result Window_SaveFileDialog(const struct SaveFileDialogArgs* args) {
+    if (!args->defaultName.length) return SFD_ERR_NEED_DEFAULT_NAME;
+    
+    // save the item to a temp file, which is then (usually) later deleted by picker callbacks
+    cc_string tmpDir = String_FromConst("Exported");
+    Directory_Create(&tmpDir);
+    
+    save_path.length = 0;
+    String_Format3(&save_path, "%s/%s%c", &tmpDir, &args->defaultName, args->filters[0]);
+    args->Callback(&save_path);
+    
+    NSString* str = ToNSString(&save_path);
+    NSURL* url    = [NSURL fileURLWithPath:str isDirectory:NO];
+    
+    UIDocumentPickerViewController* dlg;
+    dlg = [UIDocumentPickerViewController alloc];
+    dlg = [dlg initWithURL:url inMode:UIDocumentPickerModeExportToService];
+    
+    dlg.delegate = cc_controller;
+    [cc_controller presentViewController:dlg animated:YES completion: Nil];
+    return 0;
+}
+
 
 /*#########################################################################################################################*
  *--------------------------------------------------------2D window--------------------------------------------------------*
@@ -676,11 +720,8 @@ static char gameArgs[GAME_MAX_CMDARGS][STRING_SIZE];
 static int gameNumArgs;
 
 cc_result Process_StartOpen(const cc_string* args) {
-    NSURL* url;
-    NSString* str;
-    
-    str = ToNSString(args);
-    url = [[NSURL alloc] initWithString:str];
+    NSString* str = ToNSString(args);
+    NSURL* url    = [[NSURL alloc] initWithString:str];
     [UIApplication.sharedApplication openURL:url];
     return 0;
 }