Reorgnize the platform-specific files

atom/browser/mac/in_app_purchase_observer.mm

@@ -0,0 +1,183 @@
+// Copyright (c) 2017 Amaplex Software, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/mac/in_app_purchase_observer.h"
+
+#include "base/bind.h"
+#include "base/strings/sys_string_conversions.h"
+#include "content/public/browser/browser_thread.h"
+
+#import <CommonCrypto/CommonCrypto.h>
+#import <StoreKit/StoreKit.h>
+
+// ============================================================================
+//                             InAppTransactionObserver
+// ============================================================================
+
+@interface InAppTransactionObserver : NSObject<SKPaymentTransactionObserver> {
+ @private
+  in_app_purchase::InAppTransactionCallback callback_;
+}
+
+- (id)initWithCallback:
+    (const in_app_purchase::InAppTransactionCallback&)callback;
+
+@end
+
+@implementation InAppTransactionObserver
+
+/**
+ * Init with a callback.
+ *
+ * @param callback - The callback that will be called for each transaction
+ * update.
+ */
+- (id)initWithCallback:
+    (const in_app_purchase::InAppTransactionCallback&)callback {
+  if ((self = [super init])) {
+    callback_ = callback;
+
+    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
+  }
+
+  return self;
+}
+
+/**
+ * Run the callback in the browser thread.
+ *
+ * @param transaction - The transaction to pass to the callback.
+ */
+- (void)runCallback:(SKPaymentTransaction*)transaction {
+  if (transaction == nil) {
+    return;
+  }
+
+  // Convert the payment.
+  in_app_purchase::Payment paymentStruct;
+  paymentStruct = [self skPaymentToStruct:transaction.payment];
+
+  // Convert the transaction.
+  in_app_purchase::Transaction transactionStruct;
+  transactionStruct = [self skPaymentTransactionToStruct:transaction];
+
+  // Send the callback to the browser thread.
+  content::BrowserThread::PostTask(
+      content::BrowserThread::UI, FROM_HERE,
+      base::Bind(callback_, paymentStruct, transactionStruct));
+}
+
+/**
+ * Convert an NSDate to ISO String.
+ *
+ * @param date - The date to convert.
+ */
+- (NSString*)dateToISOString:(NSDate*)date {
+  NSDateFormatter* dateFormatter = [[NSDateFormatter alloc] init];
+  NSLocale* enUSPOSIXLocale =
+      [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
+  [dateFormatter setLocale:enUSPOSIXLocale];
+  [dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZZZZZ"];
+
+  return [dateFormatter stringFromDate:date];
+}
+
+/**
+ * Convert a SKPayment object to a Payment structure.
+ *
+ * @param payment - The SKPayment object to convert.
+ */
+- (in_app_purchase::Payment)skPaymentToStruct:(SKPayment*)payment {
+  in_app_purchase::Payment paymentStruct;
+
+  if (payment == nil) {
+    return paymentStruct;
+  }
+
+  if (payment.productIdentifier != nil) {
+    paymentStruct.productIdentifier = [payment.productIdentifier UTF8String];
+  }
+
+  if (payment.quantity >= 1) {
+    paymentStruct.quantity = (int)payment.quantity;
+  }
+
+  return paymentStruct;
+}
+
+/**
+ * Convert a SKPaymentTransaction object to a Transaction structure.
+ *
+ * @param transaction - The SKPaymentTransaction object to convert.
+ */
+- (in_app_purchase::Transaction)skPaymentTransactionToStruct:
+    (SKPaymentTransaction*)transaction {
+  in_app_purchase::Transaction transactionStruct;
+
+  if (transaction == nil) {
+    return transactionStruct;
+  }
+
+  if (transaction.transactionIdentifier != nil) {
+    transactionStruct.transactionIdentifier =
+        [transaction.transactionIdentifier UTF8String];
+  }
+
+  if (transaction.transactionDate != nil) {
+    transactionStruct.transactionDate =
+        [[self dateToISOString:transaction.transactionDate] UTF8String];
+  }
+
+  if (transaction.originalTransaction != nil) {
+    transactionStruct.originalTransactionIdentifier =
+        [transaction.originalTransaction.transactionIdentifier UTF8String];
+  }
+
+  if (transaction.error != nil) {
+    transactionStruct.errorCode = (int)transaction.error.code;
+    transactionStruct.errorMessage =
+        [[transaction.error localizedDescription] UTF8String];
+  }
+
+  if (transaction.transactionState < 5) {
+    transactionStruct.transactionState = [[@[
+      @"SKPaymentTransactionStatePurchasing",
+      @"SKPaymentTransactionStatePurchased", @"SKPaymentTransactionStateFailed",
+      @"SKPaymentTransactionStateRestored",
+      @"SKPaymentTransactionStateDeferred"
+    ] objectAtIndex:transaction.transactionState] UTF8String];
+  }
+
+  return transactionStruct;
+}
+
+#pragma mark -
+#pragma mark SKPaymentTransactionObserver methods
+
+/**
+ * Executed when a transaction is updated.
+ *
+ * @param queue - The payment queue.
+ * @param transactions - The list of transactions updated.
+ */
+- (void)paymentQueue:(SKPaymentQueue*)queue
+    updatedTransactions:(NSArray*)transactions {
+  for (SKPaymentTransaction* transaction in transactions) {
+    [self runCallback:transaction];
+  }
+}
+
+@end
+
+// ============================================================================
+//                             C++ in_app_purchase
+// ============================================================================
+
+namespace in_app_purchase {
+
+void AddTransactionObserver(const InAppTransactionCallback& callback) {
+  [[InAppTransactionObserver alloc] initWithCallback:callback];
+}
+
+}  // namespace in_app_purchase