From ea85d7aebd57f49e953e530bcf8723b941b16271 Mon Sep 17 00:00:00 2001
From: Jordan Rose <jrose@signal.org>
Date: Fri, 23 Oct 2020 15:12:10 -0700
Subject: [PATCH] Allow pasting in a tsdevice: URL to link a device under
 TESTABLE_BUILD

This is useful for testing in the simulator, which doesn't have camera
access. You still have to get the URL out of the QR code, though.
---
 .../AppSettings/OWSLinkDeviceViewController.h |  2 +-
 .../AppSettings/OWSLinkDeviceViewController.m | 32 ++++++++++++++++++-
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.h b/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.h
index 1845ab4440..ef5debb13e 100644
--- a/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.h
+++ b/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.h
@@ -19,7 +19,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 @property (nonatomic, weak) id<OWSLinkDeviceViewControllerDelegate> delegate;
 
-- (void)controller:(OWSQRCodeScanningViewController *)controller didDetectQRCodeWithString:(NSString *)string;
+- (void)controller:(nullable OWSQRCodeScanningViewController *)controller didDetectQRCodeWithString:(NSString *)string;
 
 @end
 
diff --git a/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.m b/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.m
index 9ce1901cc2..9672192b04 100644
--- a/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.m
+++ b/Signal/src/ViewControllers/AppSettings/OWSLinkDeviceViewController.m
@@ -73,6 +73,13 @@ NS_ASSUME_NONNULL_BEGIN
 
     self.title
         = NSLocalizedString(@"LINK_NEW_DEVICE_TITLE", "Navigation title when scanning QR code to add new device.");
+
+#if TESTABLE_BUILD
+    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:LocalizationNotNeeded(@"ENTER")
+                                                                              style:UIBarButtonItemStylePlain
+                                                                             target:self
+                                                                             action:@selector(manuallyEnterLinkURL)];
+#endif
 }
 
 #pragma mark -
@@ -100,7 +107,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark - OWSQRScannerDelegate
 
-- (void)controller:(OWSQRCodeScanningViewController *)controller didDetectQRCodeWithString:(NSString *)string
+- (void)controller:(nullable OWSQRCodeScanningViewController *)controller didDetectQRCodeWithString:(NSString *)string
 {
     OWSDeviceProvisioningURLParser *parser = [[OWSDeviceProvisioningURLParser alloc] initWithProvisioningURL:string];
     if (!parser.isValid) {
@@ -242,6 +249,29 @@ NS_ASSUME_NONNULL_BEGIN
                                                   }];
 }
 
+#if TESTABLE_BUILD
+- (IBAction)manuallyEnterLinkURL
+{
+    UIAlertController *alertController = [UIAlertController
+        alertControllerWithTitle:LocalizationNotNeeded(@"Manually enter linking code.")
+                         message:LocalizationNotNeeded(@"Copy the URL represented by the QR code into the field below.")
+                  preferredStyle:UIAlertControllerStyleAlert];
+    [alertController addTextFieldWithConfigurationHandler:nil];
+    [alertController
+        addAction:[UIAlertAction
+                      actionWithTitle:CommonStrings.okayButton
+                                style:UIAlertActionStyleDefault
+                              handler:^(UIAlertAction *action) {
+                                  [self controller:nil
+                                      didDetectQRCodeWithString:[alertController textFields].firstObject.text];
+                              }]];
+    [alertController addAction:[UIAlertAction actionWithTitle:CommonStrings.cancelButton
+                                                        style:UIAlertActionStyleCancel
+                                                      handler:nil]];
+    [self presentViewController:alertController animated:YES completion:nil];
+}
+#endif
+
 #pragma mark - Orientation
 
 - (UIInterfaceOrientationMask)supportedInterfaceOrientations