Add number of unread items to the tools menu

This CL adds the number of unread items in the ReadingList to the badge
associated with the ReadingList entry in the tools menu.

Bug: 826304
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: Id806406c1e1452793092afdefeb6937051e9bdaf
Reviewed-on: https://chromium-review.googlesource.com/992233
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548024}

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

@@ -16,11 +16,13 @@ source_set("popup_menu") {
     "//ios/chrome/app/strings",
     "//ios/chrome/browser/browser_state",
     "//ios/chrome/browser/find_in_page",
+    "//ios/chrome/browser/reading_list",
     "//ios/chrome/browser/ui",
     "//ios/chrome/browser/ui/activity_services",
     "//ios/chrome/browser/ui/commands",
     "//ios/chrome/browser/ui/coordinators:chrome_coordinators",
     "//ios/chrome/browser/ui/popup_menu/cells",
+    "//ios/chrome/browser/ui/reading_list",
     "//ios/chrome/browser/ui/tools_menu/public",
     "//ios/chrome/browser/ui/util",
     "//ios/chrome/browser/web_state_list",
@@ -96,6 +98,7 @@ source_set("unit_tests") {
     ":popup_menu_ui",
     "//base",
     "//base/test:test_support",
+    "//components/reading_list/core",
     "//ios/chrome/browser/browser_state:test_support",
     "//ios/chrome/browser/ui/toolbar/test",
     "//ios/chrome/browser/web_state_list",

ios/chrome/browser/ui/popup_menu/cells/popup_menu_tools_item.mm

@@ -164,7 +164,7 @@ const CGFloat kTopMarginBadge = 14;
 
 - (void)setBadgeNumber:(NSInteger)badgeNumber {
   BOOL wasHidden = self.numberBadgeView.hidden;
-  [self.numberBadgeView setNumber:badgeNumber animated:YES];
+  [self.numberBadgeView setNumber:badgeNumber animated:NO];
   // If the number badge is shown, then the text badge must be hidden.
   if (!self.numberBadgeView.hidden && !self.textBadgeView.hidden) {
     [self setBadgeText:nil];

ios/chrome/browser/ui/popup_menu/popup_menu_coordinator.mm

@@ -8,6 +8,7 @@
 #include "base/metrics/user_metrics.h"
 #include "base/metrics/user_metrics_action.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
+#include "ios/chrome/browser/reading_list/reading_list_model_factory.h"
 #import "ios/chrome/browser/ui/commands/command_dispatcher.h"
 #import "ios/chrome/browser/ui/commands/popup_menu_commands.h"
 #import "ios/chrome/browser/ui/popup_menu/popup_menu_mediator.h"
@@ -94,7 +95,9 @@
 
   self.mediator = [[PopupMenuMediator alloc]
           initWithType:PopupMenuTypeToolsMenu
-       isIncognito:self.browserState->IsOffTheRecord()];
+           isIncognito:self.browserState->IsOffTheRecord()
+      readingListModel:ReadingListModelFactory::GetForBrowserState(
+                           self.browserState)];
   self.mediator.webStateList = self.webStateList;
   self.mediator.popupMenu = tableViewController;
   self.mediator.dispatcher = static_cast<id<BrowserCommands>>(self.dispatcher);
@@ -113,7 +116,9 @@
 
   self.mediator = [[PopupMenuMediator alloc]
           initWithType:PopupMenuTypeTabGrid
-       isIncognito:self.browserState->IsOffTheRecord()];
+           isIncognito:self.browserState->IsOffTheRecord()
+      readingListModel:ReadingListModelFactory::GetForBrowserState(
+                           self.browserState)];
   self.mediator.webStateList = self.webStateList;
   self.mediator.popupMenu = tableViewController;
 

ios/chrome/browser/ui/popup_menu/popup_menu_mediator.h

@@ -9,6 +9,7 @@
 
 @protocol BrowserCommands;
 @class PopupMenuTableViewController;
+class ReadingListModel;
 class WebStateList;
 
 // Type of popup menus.
@@ -25,7 +26,9 @@ typedef NS_ENUM(NSInteger, PopupMenuType) {
 @interface PopupMenuMediator : NSObject
 
 - (instancetype)initWithType:(PopupMenuType)type
-                 isIncognito:(BOOL)isIncognito NS_DESIGNATED_INITIALIZER;
+                 isIncognito:(BOOL)isIncognito
+            readingListModel:(ReadingListModel*)readingListModel
+    NS_DESIGNATED_INITIALIZER;
 - (instancetype)init NS_UNAVAILABLE;
 
 // The WebStateList that this mediator listens for any changes on the current

ios/chrome/browser/ui/popup_menu/popup_menu_mediator.mm

@@ -12,6 +12,8 @@
 #import "ios/chrome/browser/ui/popup_menu/cells/popup_menu_item.h"
 #import "ios/chrome/browser/ui/popup_menu/cells/popup_menu_tools_item.h"
 #import "ios/chrome/browser/ui/popup_menu/popup_menu_table_view_controller.h"
+#import "ios/chrome/browser/ui/reading_list/reading_list_menu_notification_delegate.h"
+#import "ios/chrome/browser/ui/reading_list/reading_list_menu_notifier.h"
 #include "ios/chrome/browser/ui/tools_menu/public/tools_menu_constants.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 #import "ios/chrome/browser/web_state_list/web_state_list.h"
@@ -51,6 +53,7 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
 
 @interface PopupMenuMediator ()<CRWWebStateObserver,
                                 PopupMenuTableViewControllerCommand,
+                                ReadingListMenuNotificationDelegate,
                                 WebStateListObserving> {
   std::unique_ptr<web::WebStateObserverBridge> _webStateObserver;
   std::unique_ptr<WebStateListObserverBridge> _webStateListObserver;
@@ -69,12 +72,16 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
 // Whether the popup menu is presented in incognito or not.
 @property(nonatomic, assign) BOOL isIncognito;
 
+// Items notifying this items of changes happening to the ReadingList model.
+@property(nonatomic, strong) ReadingListMenuNotifier* readingListMenuNotifier;
+
 #pragma mark*** Specific Items ***
 
 @property(nonatomic, strong) PopupMenuToolsItem* reloadStop;
 @property(nonatomic, strong) PopupMenuToolsItem* readLater;
 @property(nonatomic, strong) PopupMenuToolsItem* findInPage;
 @property(nonatomic, strong) PopupMenuToolsItem* siteInformation;
+@property(nonatomic, strong) PopupMenuToolsItem* readingList;
 // Array containing all the nonnull items/
 @property(nonatomic, strong) NSArray<TableViewItem*>* specificItems;
 
@@ -86,6 +93,7 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
 @synthesize isIncognito = _isIncognito;
 @synthesize popupMenu = _popupMenu;
 @synthesize dispatcher = _dispatcher;
+@synthesize readingListMenuNotifier = _readingListMenuNotifier;
 @synthesize type = _type;
 @synthesize webState = _webState;
 @synthesize webStateList = _webStateList;
@@ -93,15 +101,20 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
 @synthesize readLater = _readLater;
 @synthesize findInPage = _findInPage;
 @synthesize siteInformation = _siteInformation;
+@synthesize readingList = _readingList;
 @synthesize specificItems = _specificItems;
 
 #pragma mark - Public
 
-- (instancetype)initWithType:(PopupMenuType)type isIncognito:(BOOL)isIncognito {
+- (instancetype)initWithType:(PopupMenuType)type
+                 isIncognito:(BOOL)isIncognito
+            readingListModel:(ReadingListModel*)readingListModel {
   self = [super init];
   if (self) {
     _isIncognito = isIncognito;
     _type = type;
+    _readingListMenuNotifier =
+        [[ReadingListMenuNotifier alloc] initWithReadingList:readingListModel];
     _webStateObserver = std::make_unique<web::WebStateObserverBridge>(self);
     _webStateListObserver = std::make_unique<WebStateListObserverBridge>(self);
   }
@@ -255,6 +268,8 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
       [specificItems addObject:self.findInPage];
     if (self.siteInformation)
       [specificItems addObject:self.siteInformation];
+    if (self.readingList)
+      [specificItems addObject:self.readingList];
     self.specificItems = specificItems;
   }
   return _items;
@@ -281,6 +296,21 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
   });
 }
 
+#pragma mark - ReadingListMenuNotificationDelegate Implementation
+
+- (void)unreadCountChanged:(NSInteger)unreadCount {
+  if (!self.readingList)
+    return;
+
+  self.readingList.badgeNumber = unreadCount;
+  [self.popupMenu reconfigureCellsForItems:@[ self.readingList ]];
+}
+
+- (void)unseenStateChanged:(BOOL)unseenItemsExist {
+  // TODO(crbug.com/828367): Implement this once the "unseen items effect" is
+  // defined.
+}
+
 #pragma mark - Popup updates (Private)
 
 // Updates the popup menu to have its state in sync with the current page
@@ -446,9 +476,13 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
       @"popup_menu_bookmarks", kToolsMenuBookmarksId);
 
   // Reading List.
-  TableViewItem* readingList = CreateTableViewItem(
+  self.readingList = CreateTableViewItem(
       IDS_IOS_TOOLS_MENU_READING_LIST, PopupMenuActionReadingList,
       @"popup_menu_reading_list", kToolsMenuReadingListId);
+  self.readingList.badgeNumber =
+      [self.readingListMenuNotifier readingListUnreadCount];
+  // TODO(crbug.com/828367): Once the "unseen items effect" is defined,
+  // implement it.
 
   // Recent Tabs.
   TableViewItem* recentTabs = CreateTableViewItem(
@@ -465,7 +499,7 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
       CreateTableViewItem(IDS_IOS_TOOLS_MENU_SETTINGS, PopupMenuActionSettings,
                           @"popup_menu_settings", kToolsMenuSettingsId);
 
-  return @[ bookmarks, readingList, recentTabs, history, settings ];
+  return @[ bookmarks, self.readingList, recentTabs, history, settings ];
 }
 
 // Returns the UserAgentType currently in use.

ios/chrome/browser/ui/popup_menu/popup_menu_mediator_unittest.mm

@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/ui/popup_menu/popup_menu_mediator.h"
+#include "base/time/default_clock.h"
+#include "components/reading_list/core/reading_list_model_impl.h"
 #import "ios/chrome/browser/ui/popup_menu/popup_menu_table_view_controller.h"
 #import "ios/chrome/browser/ui/toolbar/test/toolbar_test_navigation_manager.h"
 #import "ios/chrome/browser/ui/toolbar/test/toolbar_test_web_state.h"
@@ -37,12 +39,16 @@ const int kNumberOfWebStates = 3;
 class PopupMenuMediatorTest : public PlatformTest {
  public:
   PopupMenuMediatorTest() {
+    reading_list_model_.reset(new ReadingListModelImpl(
+        nullptr, nullptr, base::DefaultClock::GetInstance()));
     mediator_incognito_ =
         [[PopupMenuMediator alloc] initWithType:PopupMenuTypeToolsMenu
-                                    isIncognito:YES];
+                                    isIncognito:YES
+                               readingListModel:reading_list_model_.get()];
     mediator_non_incognito_ =
         [[PopupMenuMediator alloc] initWithType:PopupMenuTypeToolsMenu
-                                    isIncognito:NO];
+                                    isIncognito:NO
+                               readingListModel:reading_list_model_.get()];
     popup_menu_ = OCMClassMock([PopupMenuTableViewController class]);
     popup_menu_strict_ =
         OCMStrictClassMock([PopupMenuTableViewController class]);
@@ -91,6 +97,7 @@ class PopupMenuMediatorTest : public PlatformTest {
 
   PopupMenuMediator* mediator_incognito_;
   PopupMenuMediator* mediator_non_incognito_;
+  std::unique_ptr<ReadingListModelImpl> reading_list_model_;
   ToolbarTestWebState* web_state_;
   ToolbarTestNavigationManager* navigation_manager_;
   std::unique_ptr<WebStateList> web_state_list_;