[ios showcase] Integrated TextBadgeView with Showcase.

This CL adds TextBadgeView to iOS Showcase. This involves adding a
text_badge_view folder to showcase, creating a glue view controller,
and modifying the Showcase configuration file and BUILD.gn files as
necessary.

Since TextBadgeView is currently a stub implementation, Showcase
displays a blank white screen.

BUG=740133.

Review-Url: https://codereview.chromium.org/2967113003
Cr-Commit-Position: refs/heads/master@{#485302}

ios/showcase/BUILD.gn

@@ -35,6 +35,7 @@ group("features") {
     "//ios/showcase/settings",
     "//ios/showcase/tab",
     "//ios/showcase/tab_grid",
+    "//ios/showcase/text_badge_view",
     "//ios/showcase/toolbar",
     "//ios/showcase/tools_menu",
     "//ios/showcase/uikit_table_view_cell",
@@ -75,6 +76,7 @@ ios_eg_test("ios_showcase_egtests") {
     "//ios/showcase/root:eg_tests",
     "//ios/showcase/tab:eg_tests",
     "//ios/showcase/tab_grid:eg_tests",
+    "//ios/showcase/text_badge_view:eg_tests",
     "//ios/showcase/toolbar:eg_tests",
 
     # All shared libraries must have the sanitizer deps to properly link in

ios/showcase/core/showcase_model.mm

@@ -91,6 +91,11 @@
       showcase::kClassForInstantiationKey : @"SCContentWidgetCoordinator",
       showcase::kUseCaseKey : @"Content Widget",
     },
+    @{
+      showcase::kClassForDisplayKey : @"TextBadgeView",
+      showcase::kClassForInstantiationKey : @"SCTextBadgeViewController",
+      showcase::kUseCaseKey : @"Text badge view",
+    },
   ];
 }
 

ios/showcase/text_badge_view/BUILD.gn

+source_set("text_badge_view") {
+  sources = [
+    "sc_text_badge_view_controller.h",
+    "sc_text_badge_view_controller.mm",
+  ]
+  deps = [
+    "//ios/chrome/browser/ui/reading_list:reading_list_ui",
+  ]
+  libs = [ "UIKit.framework" ]
+  configs += [ "//build/config/compiler:enable_arc" ]
+}
+
+source_set("eg_tests") {
+  testonly = true
+  sources = [
+    "sc_text_badge_view_egtest.mm",
+  ]
+  deps = [
+    "//ios/chrome/browser/ui/reading_list:reading_list_ui",
+    "//ios/chrome/test/earl_grey:test_support",
+    "//ios/showcase/test",
+    "//ios/third_party/earl_grey",
+    "//ui/base",
+  ]
+  configs += [ "//build/config/compiler:enable_arc" ]
+}

ios/showcase/text_badge_view/sc_text_badge_view_controller.h

+// Copyright 2017 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_SHOWCASE_TEXT_BADGE_VIEW_SC_TEXT_BADGE_VIEW_CONTROLLER_H_
+#define IOS_SHOWCASE_TEXT_BADGE_VIEW_SC_TEXT_BADGE_VIEW_CONTROLLER_H_
+
+#import <UIKit/UIKit.h>
+
+@interface SCTextBadgeViewController : UIViewController
+@end
+
+#endif  // IOS_SHOWCASE_TEXT_BADGE_VIEW_SC_TEXT_BADGE_VIEW_CONTROLLER_H_

ios/showcase/text_badge_view/sc_text_badge_view_controller.mm

+// Copyright 2017 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/showcase/text_badge_view/sc_text_badge_view_controller.h"
+
+#import "ios/chrome/browser/ui/reading_list/text_badge_view.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@implementation SCTextBadgeViewController
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+  self.view.backgroundColor = [UIColor grayColor];
+  TextBadgeView* textBadge = [[TextBadgeView alloc] initWithText:@"TEXT"];
+  [self.view addSubview:textBadge];
+  textBadge.bounds = CGRectMake(0.0f, 0.0f, 100.0f, 100.0f);
+  textBadge.center = self.view.center;
+}
+
+@end

ios/showcase/text_badge_view/sc_text_badge_view_egtest.mm

+// Copyright 2017 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 <EarlGrey/EarlGrey.h>
+
+#import "ios/showcase/test/showcase_eg_utils.h"
+#import "ios/showcase/test/showcase_test_case.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace {
+using ::showcase_utils::Open;
+using ::showcase_utils::Close;
+}
+
+@interface TextBadgeViewTestCase : ShowcaseTestCase
+@end
+
+@implementation TextBadgeViewTestCase
+
+// Tests that the accessibility label matches the display text.
+- (void)testTextBadgeAccessibilityLabel {
+  Open(@"TextBadgeView");
+  Close();
+}
+
+@end