Add Open in DuckDuckGo support

Telegraph/TGOpenInBrowserItems.m

@@ -22,6 +22,9 @@ @interface TGOpenInYandexItem : TGOpenInBrowserItem
 
 @end
 
+@interface TGOpenInDuckDuckGoItem : TGOpenInBrowserItem
+
+@end
 
 @interface TGOpenInBrowserItem ()
 
@@ -41,7 +44,8 @@ + (NSArray *)appItemsClasses
             [TGOpenInChromeItem class],
             [TGOpenInFirefoxItem class],
             [TGOpenInOperaItem class],
-            [TGOpenInYandexItem class]
+            [TGOpenInYandexItem class],
+            [TGOpenInDuckDuckGoItem class]
         ];
     });
     return appItems;
@@ -258,3 +262,34 @@ + (NSString *)defaultURLScheme
 }
 
 @end
+
+@implementation TGOpenInDuckDuckGoItem
+
+- (NSString *)title
+{
+    return @"DuckDuckGo";
+}
+
+- (NSInteger)storeIdentifier
+{
+    return 663592361;
+}
+
+- (void)performOpenIn
+{
+    NSURL *url = (NSURL *)self.object;
+    NSString *scheme = [url.scheme lowercaseString];
+
+    if (![scheme isEqualToString:@"http"] && ![scheme isEqualToString:@"https"])
+        return;
+
+    NSURL *openInURL = [NSURL URLWithString:[NSString stringWithFormat:@"ddgquicklink://%@", url.absoluteString]];
+    [TGOpenInBrowserItem openURL:openInURL];
+}
+
++ (NSString *)defaultURLScheme
+{
+    return @"ddgquicklink";
+}
+
+@end

Telegraph/Telegraph-Info.plist

@@ -121,6 +121,7 @@
 	<string></string>
 	<key>LSApplicationQueriesSchemes</key>
 	<array>
+		<string>ddgquicklink</string>
 		<string>dbapi-3</string>
 		<string>instagram</string>
 		<string>googledrive</string>