[Sharing] Created Command for QR Code Generation Activity.

This command will be invoked by the QR code activity from the
activity service, and will be in charge of starting up a
QRCodeCoordinator.

Bug: 1064990
Change-Id: Ib0a98c0e51c1df901176dbb304e77ca4d52591e9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2122480
Commit-Queue: Sebastien Lalancette <seblalancette@chromium.org>
Reviewed-by: Mark Cogan <marq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#754035}

ios/chrome/browser/ui/browser_view/browser_coordinator.mm

@@ -38,6 +38,7 @@
 #import "ios/chrome/browser/ui/commands/infobar_commands.h"
 #import "ios/chrome/browser/ui/commands/page_info_commands.h"
 #import "ios/chrome/browser/ui/commands/password_breach_commands.h"
+#import "ios/chrome/browser/ui/commands/qr_generation_commands.h"
 #import "ios/chrome/browser/ui/commands/text_zoom_commands.h"
 #import "ios/chrome/browser/ui/download/ar_quick_look_coordinator.h"
 #import "ios/chrome/browser/ui/download/features.h"
@@ -81,6 +82,7 @@
                                   BrowserCoordinatorCommands,
                                   FormInputAccessoryCoordinatorNavigator,
                                   PageInfoCommands,
+                                  QRGenerationCommands,
                                   RepostFormTabHelperDelegate,
                                   ToolbarAccessoryCoordinatorDelegate,
                                   URLLoadingDelegate,
@@ -219,6 +221,8 @@
                    forProtocol:@protocol(BrowserCoordinatorCommands)];
   [self.dispatcher startDispatchingToTarget:self
                                 forProtocol:@protocol(PageInfoCommands)];
+  [self.dispatcher startDispatchingToTarget:self
+                                forProtocol:@protocol(QRGenerationCommands)];
   [self installDelegatesForAllWebStates];
   [self installDelegatesForBrowser];
   [self addWebStateListObserver];
@@ -713,6 +717,12 @@
   [self hidePageInfo];
 }
 
+#pragma mark - QRGenerationCommands
+
+- (void)generateQRCode:(GenerateQRCodeCommand*)command {
+  // TODO(crbug.com/1064990): Implement Coordinator and starting here.
+}
+
 #pragma mark - FormInputAccessoryCoordinatorNavigator
 
 - (void)openPasswordSettings {

ios/chrome/browser/ui/commands/BUILD.gn

@@ -14,6 +14,8 @@ source_set("commands") {
     "command_dispatcher.h",
     "command_dispatcher.mm",
     "find_in_page_commands.h",
+    "generate_qr_code_command.h",
+    "generate_qr_code_command.mm",
     "infobar_commands.h",
     "load_query_commands.h",
     "omnibox_suggestion_commands.h",
@@ -22,6 +24,7 @@ source_set("commands") {
     "page_info_commands.h",
     "password_breach_commands.h",
     "popup_menu_commands.h",
+    "qr_generation_commands.h",
     "qr_scanner_commands.h",
     "reading_list_add_command.h",
     "reading_list_add_command.mm",

ios/chrome/browser/ui/commands/generate_qr_code_command.h

+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef IOS_CHROME_BROWSER_UI_COMMANDS_GENERATE_QR_CODE_COMMAND_H_
+#define IOS_CHROME_BROWSER_UI_COMMANDS_GENERATE_QR_CODE_COMMAND_H_
+
+#import <Foundation/Foundation.h>
+
+#include "url/gurl.h"
+
+// Command sent to generate a QR code for a given URL.
+@interface GenerateQRCodeCommand : NSObject
+
+// Initializes a command containing the URL to generate a QR code for along with
+// that URL's page title.
+- (instancetype)initWithURL:(const GURL&)URL
+                      title:(NSString*)title NS_DESIGNATED_INITIALIZER;
+
+// Mark inherited initializer as unavailable to prevent calling it by mistake.
+- (instancetype)init NS_UNAVAILABLE;
+
+// URL for the QR code.
+@property(nonatomic, readonly) const GURL& URL;
+
+// Title of the page, which can be used for display purposes.
+@property(copy, nonatomic, readonly) NSString* title;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_COMMANDS_GENERATE_QR_CODE_COMMAND_H_
\ No newline at end of file

ios/chrome/browser/ui/commands/generate_qr_code_command.mm

+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+#import "ios/chrome/browser/ui/commands/generate_qr_code_command.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@implementation GenerateQRCodeCommand {
+  GURL _URL;
+}
+
+- (instancetype)initWithURL:(const GURL&)URL title:(NSString*)title {
+  if (self = [super init]) {
+    _URL = URL;
+    _title = title;
+  }
+  return self;
+}
+@end

ios/chrome/browser/ui/commands/qr_generation_commands.h

+
+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef IOS_CHROME_BROWSER_UI_COMMANDS_QR_GENERATION_COMMANDS_H_
+#define IOS_CHROME_BROWSER_UI_COMMANDS_QR_GENERATION_COMMANDS_H_
+
+#import "ios/chrome/browser/ui/commands/generate_qr_code_command.h"
+
+// QRGenerationCommands contains commands related to generating QR codes.
+@protocol QRGenerationCommands <NSObject>
+
+// Generates a QR code based on the |command| properties and displays it.
+- (void)generateQRCode:(GenerateQRCodeCommand*)command;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_COMMANDS_QR_GENERATION_COMMANDS_H_