Disable caps lock mapping on iOS 13

mehfooz09 · Feb 18, 2020 · efc4876 · efc4876
1 parent ba78d23
commit efc4876
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Showing 2 changed files with 32 additions and 4 deletions.
diff --git a/app/AboutExternalKeyboardViewController.m b/app/AboutExternalKeyboardViewController.m
@@ -61,4 +61,30 @@ - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
     }
 }
 
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+    if (section == 0 && ![self.class capsLockMappingSupported])
+        return 0;
+    return [super tableView:tableView numberOfRowsInSection:section];
+}
+
+- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section {
+    if (section == 0 && ![self.class capsLockMappingSupported])
+        return @"Caps Lock mapping is broken in iOS 13.\n\n"
+        @"Since iOS 13.4, Caps Lock can be remapped in Settings → General → Keyboard → Hardware Keyboard → Modifier Keys.";
+    return [super tableView:tableView titleForFooterInSection:section];
+}
+
+- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
+    if (section == 0 && ![self.class capsLockMappingSupported])
+        return @"";
+    return [super tableView:tableView titleForHeaderInSection:section];
+}
+
++ (BOOL)capsLockMappingSupported {
+    if (@available(iOS 13, *)) {
+        return NO;
+    }
+    return YES;
+}
+
 @end
diff --git a/app/TerminalView.m b/app/TerminalView.m
@@ -382,10 +382,12 @@ - (void)handleKeyCommand:(UIKeyCommand *)command {
         [self addKey:specialKey withModifiers:0];
     }
     if (UserPreferences.shared.capsLockMapping != CapsLockMapNone) {
-        [self addKeys:controlKeys withModifiers:UIKeyModifierAlphaShift];
-        [self addKeys:alphabet withModifiers:0];
-        [self addKeys:alphabet withModifiers:UIKeyModifierShift];
-        [self addKey:@"" withModifiers:UIKeyModifierAlphaShift]; // otherwise tap of caps lock can switch layouts
+        if (@available(iOS 13, *)); else {
+            [self addKeys:controlKeys withModifiers:UIKeyModifierAlphaShift];
+            [self addKeys:alphabet withModifiers:0];
+            [self addKeys:alphabet withModifiers:UIKeyModifierShift];
+            [self addKey:@"" withModifiers:UIKeyModifierAlphaShift]; // otherwise tap of caps lock can switch layouts
+        }
     }
     if (UserPreferences.shared.optionMapping == OptionMapEsc) {
         [self addKeys:metaKeys withModifiers:UIKeyModifierAlternate];