Retry the webkit load until we've connected to the server.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4542 ed5197a5-7fde-0310-b194-c3ffbd925b24

src/ios.m

@@ -1,6 +1,5 @@
-#include "log.h"
-
 #import <UIKit/UIKit.h>
+#import <WebKit/WKNavigationDelegate.h>
 #import <WebKit/WKUIDelegate.h>
 #import <WebKit/WKWebView.h>
 #import <WebKit/WKWebViewConfiguration.h>
@@ -10,10 +9,16 @@
 
 void tf_run_thread_start(const char* zip_path);
 
-@interface ViewController : UIViewController<WKUIDelegate>
+@interface ViewController : UIViewController<WKUIDelegate,WKNavigationDelegate>
 @property(strong, nonatomic) WKWebView* web_view;
+@property bool initial_load_complete;
 @end
 
+static void _start_initial_load(WKWebView* web_view)
+{
+	[web_view loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://localhost:12345/"]]];
+}
+
 @implementation ViewController : UIViewController
 - (void)viewDidLoad
 {
@@ -21,8 +26,22 @@ void tf_run_thread_start(const char* zip_path);
 	WKWebViewConfiguration* configuration = [[WKWebViewConfiguration alloc] init];
 	self.web_view = [[WKWebView alloc] initWithFrame:self.view.frame configuration:configuration];
 	self.web_view.UIDelegate = self;
-	[self.web_view loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://localhost:12345/"]]];
+	self.web_view.navigationDelegate = self;
 	[self.view addSubview:self.web_view];
+	_start_initial_load(self.web_view);
+}
+
+- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation
+{
+	self.initial_load_complete = true;
+}
+
+- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error
+{
+	if (!self.initial_load_complete)
+	{
+		_start_initial_load(self.web_view);
+	}
 }
 
 - (void)webView:(WKWebView *)webView runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL result))completionHandler