Dactyloidae iOS initial commit

mobile/ios/Client/Frontend/Reader/FSReadingList.m

@@ -0,0 +1,60 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#import <Foundation/Foundation.h>
+#import <SafariServices/SafariServices.h>
+
+#import "Swizzling.h"
+
+NSString* const FSReadingListAddReadingListItemNotification = @"FSReadingListAddReadingListItemNotification";
+
+@interface FSReadingList: NSObject
++ (id) sharedInstance;
++ (BOOL)supportsURL:(NSURL *)URL;
+- (BOOL)addReadingListItemWithURL:(NSURL *)URL title:(NSString *)title previewText:(NSString *)previewText error:(NSError **)error;
+@end
+
+@implementation FSReadingList
++ (id) sharedInstance {
+    static FSReadingList *sharedFSReadingList = nil;
+    @synchronized (self) {
+        if (sharedFSReadingList == nil) {
+            sharedFSReadingList = [FSReadingList new];
+        }
+    }
+    return sharedFSReadingList;
+}
+
++ (BOOL)supportsURL:(NSURL *)URL {
+    return [[URL scheme] isEqualToString: @"http"] || [[URL scheme] isEqualToString: @"https"];
+}
+
+- (BOOL)addReadingListItemWithURL:(NSURL *)URL title:(NSString *)title previewText:(NSString *)previewText error:(NSError **)error {
+    if (error != NULL) {
+        *error = nil;
+    }
+    // To keep this as simple as possible and have as little as possible coupling between this Objective-C
+    // singleton and our Swift world, we simply send out a notification that our AppDelegate (which has access
+    // to the browser profile and reading list service) can respond to.
+    [[NSNotificationCenter defaultCenter] postNotificationName: FSReadingListAddReadingListItemNotification
+        object:self userInfo: @{@"URL": URL, @"Title": title}];
+    return YES;
+}
+@end
+
+// This class extension on SSReadingList implements an initialize method that will be called when the class
+// is instantiated. It swizzles defaultReadingList to our own implementation which returns a shared instance
+// of the FSReadingList. ("FirefoxServices" Reading List)
+
+@implementation SSReadingList (Firefox)
++ (void) initialize {
+    if ([SSReadingList class] == self) {
+        SwizzleClassMethods([SSReadingList class], @selector(defaultReadingList), @selector(defaultFSReadingList));
+    }
+}
+
++ (id) defaultFSReadingList {
+    return [FSReadingList sharedInstance];
+}
+@end