handle no-vmess case

Author: Cenmrev

V2RayX/ConfigWindow.xib

@@ -22,6 +22,7 @@
                 <outlet property="networkButton" destination="tMD-b4-w2E" id="MLa-PK-H4t"/>
                 <outlet property="portField" destination="vAX-58-HRK" id="l6R-dx-TNq"/>
                 <outlet property="profileTable" destination="fje-9q-W5F" id="qQT-rE-cPV"/>
+                <outlet property="transportSettingsButton" destination="L0C-0n-d5i" id="t5T-1t-ijY"/>
                 <outlet property="versionField" destination="yx5-HK-GpF" id="Dpi-oq-T9A"/>
                 <outlet property="vmessSecurityButton" destination="Dbo-ml-2p8" id="sSo-w3-Yom"/>
                 <outlet property="window" destination="QvC-M9-y7g" id="DXu-va-1Ry"/>

V2RayX/ConfigWindowController.h

@@ -29,6 +29,7 @@
 @property (weak) IBOutlet NSButton *globalTransportButton;
 @property (weak) IBOutlet NSPopUpButton *logLevelButton;
 @property (weak) IBOutlet NSMenu *importFromJsonMenu;
+@property (weak) IBOutlet NSButton *transportSettingsButton;
 
 @property (weak) AppDelegate* appDelegate;
 @property (nonatomic) ServerProfile* selectedProfile;

V2RayX/ConfigWindowController.m

@@ -129,7 +129,9 @@ -(void)tableViewSelectionDidChange:(NSNotification *)notification{
 }
 
 - (IBAction)chooseNetwork:(NSPopUpButton *)sender {
-    [self checkTLSforHttp2];
+    if (_selectedServerIndex >= 0 && _selectedServerIndex < [_profiles count]) {
+        [self checkTLSforHttp2];
+    }
 }
 
 - (BOOL)checkTLSforHttp2 {
@@ -140,9 +142,11 @@ - (BOOL)checkTLSforHttp2 {
             [httpTlsAlerm addButtonWithTitle:@"Close"];
             [httpTlsAlerm addButtonWithTitle:@"Help"];
             [httpTlsAlerm setMessageText:@"Both client and server must enable TLS to use HTTP/2 network! Enbale TLS in transport settings. Click \"Help\" if you need more information"];
-            if ([httpTlsAlerm runModal] == NSAlertSecondButtonReturn) {
-                [[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:@"https://www.v2ray.com/chapter_02/transport/h2.html#tips"]];
-            }
+            [httpTlsAlerm beginSheetModalForWindow:self.window completionHandler:^(NSModalResponse returnCode) {
+                if (returnCode == NSAlertSecondButtonReturn) {
+                    [[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:@"https://www.v2ray.com/chapter_02/transport/h2.html#tips"]];
+                }
+            }];
             [_networkButton selectItemAtIndex:0];
             return NO; // does not pass checking
         }
@@ -269,6 +273,9 @@ - (IBAction)showAdvancedWindow:(NSButton *)sender {
 
 
 - (IBAction)showTransportSettings:(id)sender {
+    if ([_profiles count] == 0) {
+        return;
+    }
     self.transportWindowController = [[TransportWindowController alloc] initWithWindowNibName:@"TransportWindow" parentController:self];
     [[self window] beginSheet:self.transportWindowController.window completionHandler:^(NSModalResponse returnCode) {
         if (returnCode == NSModalResponseOK) {