Update UserIndicators with newer implementation from Element (modified to work here)

ElementX.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 51;
+	objectVersion = 52;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -14,13 +14,16 @@
 		03B8FEA668A5B76A93113BB1 /* MemberDetailProviderManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8C2ABC1A9B62BDB3D216E7FD /* MemberDetailProviderManager.swift */; };
 		03CB204C52F18E24A5C3D219 /* UITestsAppCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 967873B9E11828B67F64C89A /* UITestsAppCoordinator.swift */; };
 		059173B3C77056C406906B6D /* target.yml in Resources */ = {isa = PBXBuildFile; fileRef = D4DA544B2520BFA65D6DB4BB /* target.yml */; };
+		0602FA07557F580086782A9E /* UserIndicatorPresentationContext.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FA072E995316CD18BC29313 /* UserIndicatorPresentationContext.swift */; };
 		066A1E9B94723EE9F3038044 /* Strings.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47EBB5D698CE9A25BB553A2D /* Strings.swift */; };
 		072BA9DBA932374CCA300125 /* MessageComposerTextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = BE6C10032A77AE7DC5AA4C50 /* MessageComposerTextField.swift */; };
 		0EA6537A07E2DC882AEA5962 /* Localizable.stringsdict in Resources */ = {isa = PBXBuildFile; fileRef = 187853A7E643995EE49FAD43 /* Localizable.stringsdict */; };
 		0EE5EBA18BA1FE10254BB489 /* UIFont+AttributedStringBuilder.m in Sources */ = {isa = PBXBuildFile; fileRef = E8CA187FE656EE5A3F6C7DE5 /* UIFont+AttributedStringBuilder.m */; };
+		10866439ABA58CCDB5D1459D /* UserIndicatorQueue.swift in Sources */ = {isa = PBXBuildFile; fileRef = C91A6BC1A54CDB598EE2A81B /* UserIndicatorQueue.swift */; };
+		1151DCC5EC2C6585826545EC /* UserIndicatorPresenterSpy.swift in Sources */ = {isa = PBXBuildFile; fileRef = B695D0D12086158BAD1D9859 /* UserIndicatorPresenterSpy.swift */; };
 		1281625B25371BE53D36CB3A /* SeparatorRoomTimelineItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1ED7E89865201EE7D53E6DA /* SeparatorRoomTimelineItem.swift */; };
 		12F70C493FB69F4D7E9A37EA /* NavigationRouterStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = D29EBCBFEC6FD0941749404D /* NavigationRouterStore.swift */; };
-		15FEC447B7FEA62F418732AC /* ToastActivityPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = E09C9DFFE9A897E439D770C5 /* ToastActivityPresenter.swift */; };
+		15D1F9C415D9C921643BA82E /* UserIndicatorRequest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 61B73D5E21F524A9BE44448D /* UserIndicatorRequest.swift */; };
 		17CC4FB64F3A670F43ECBE5F /* UITestsRootView.swift in Sources */ = {isa = PBXBuildFile; fileRef = CCA431E6EDD71F7067B5F9E7 /* UITestsRootView.swift */; };
 		1999ECC6777752A2616775CF /* MemberDetailsProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6A152791A2F56BD193BFE986 /* MemberDetailsProvider.swift */; };
 		1A70A2199394B5EC660934A5 /* MatrixRustSDK in Frameworks */ = {isa = PBXBuildFile; productRef = A678E40E917620059695F067 /* MatrixRustSDK */; };
@@ -37,6 +40,7 @@
 		2E59008365E01F0AFB3A6B24 /* ImageRoomMessage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8BF686BA36D0C2FA3C63DFDF /* ImageRoomMessage.swift */; };
 		2F1CF90A3460C153154427F0 /* RoomScreenUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 086B997409328F091EBA43CE /* RoomScreenUITests.swift */; };
 		2FE4EEF780553B25A446BBFB /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = EFFA5FD06AAAC4AF544B594E /* AppDelegate.swift */; };
+		30122AB3484AC6C3A7F6A717 /* ActivityIndicatorView.xib in Resources */ = {isa = PBXBuildFile; fileRef = B64F3A3D0DF86ED5A241AB05 /* ActivityIndicatorView.xib */; };
 		306CC09DF101E7E9CDE79AA5 /* LoginScreenCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 61C8F70ADAFB63907B862E5D /* LoginScreenCoordinator.swift */; };
 		33912D1B9264D897033E0681 /* LoginScreenViewModelProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0779B2CC9A687CBB82A5B920 /* LoginScreenViewModelProtocol.swift */; };
 		33B4E59D408AE6E02323EE41 /* NoticeRoomMessage.swift in Sources */ = {isa = PBXBuildFile; fileRef = CBDA364DFFC3AC71C4771251 /* NoticeRoomMessage.swift */; };
@@ -46,23 +50,23 @@
 		368C8758FCD079E6AAA18C2C /* NoticeRoomTimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5B243E7818E5E9F6A4EDC7A /* NoticeRoomTimelineView.swift */; };
 		38546A6010A2CF240EC9AF73 /* BindableState.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6EA1D2CBAEA5D0BD00B90D1B /* BindableState.swift */; };
 		39AE84C8E5F2FE9D2DC7775C /* EventBasedTimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56008790A9C4479A6B31FDF4 /* EventBasedTimelineView.swift */; };
-		3C7009EB92E77136FF7BD9D7 /* FullscreenLoadingActivityPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8F7D1C4699CE71F08DC5B016 /* FullscreenLoadingActivityPresenter.swift */; };
-		3C732330B5A3D0A64142B280 /* ActivityPresentable.swift in Sources */ = {isa = PBXBuildFile; fileRef = DC54146B646F161762B54BBF /* ActivityPresentable.swift */; };
 		3D325A1147F6281C57BFCDF6 /* EventBrief.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4411C0DA0087A1CB143E96FA /* EventBrief.swift */; };
 		3ED2725734568F6B8CC87544 /* AttributedStringBuilder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A5C6FBF97B6EED3D4FA5EFF /* AttributedStringBuilder.swift */; };
-		417E2190C02B96F498592559 /* ActivityDismissal.swift in Sources */ = {isa = PBXBuildFile; fileRef = 34FB01A9AC30E2FA59678BC5 /* ActivityDismissal.swift */; };
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+		462813B93C39DF93B1249403 /* RoundedToastView.swift in Sources */ = {isa = PBXBuildFile; fileRef = AFABDF2E19D349DAAAC18C65 /* RoundedToastView.swift */; };
 		46562110EE202E580A5FFD9C /* RoomScreenViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 93CF7B19FFCF8EFBE0A8696A /* RoomScreenViewModelTests.swift */; };
+		4669804D0369FBED4E8625D1 /* ToastViewPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4470B8CB654B097D807AA713 /* ToastViewPresenter.swift */; };
 		49F2E7DD8CAACE09CEECE3E6 /* SeparatorRoomTimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6390A6DC140CA3D6865A66FF /* SeparatorRoomTimelineView.swift */; };
+		4B8A2C45FF906ADBB1F5C3B4 /* UserIndicatorQueueTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04E1273CC3BC3E471AF87BE5 /* UserIndicatorQueueTests.swift */; };
+		4D23C56053013437C35E511E /* ActivityIndicatorPresenterType.swift in Sources */ = {isa = PBXBuildFile; fileRef = 85C2318DF4C0E601EEE31F84 /* ActivityIndicatorPresenterType.swift */; };
 		4D970CB606276717B43E2332 /* TimelineItemList.swift in Sources */ = {isa = PBXBuildFile; fileRef = 804F9B0FABE093C7284CD09B /* TimelineItemList.swift */; };
 		4E945AD6862C403F74E57755 /* RoomTimelineItemFactory.swift in Sources */ = {isa = PBXBuildFile; fileRef = 105B2A8426404EF66F00CFDB /* RoomTimelineItemFactory.swift */; };
 		4ED453A61AF45EBE18D8BC69 /* NavigationModule.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5F77E8010D41AA3F5F9A1FCA /* NavigationModule.swift */; };
 		4FC1EFE4968A259CBBACFAFB /* RoomProxy.swift in Sources */ = {isa = PBXBuildFile; fileRef = A65F140F9FE5E8D4DAEFF354 /* RoomProxy.swift */; };
 		500CB65ED116B81DA52FDAEE /* TimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 874A1842477895F199567BD7 /* TimelineView.swift */; };
 		50391038BC50C8ED9A4D88A0 /* WeakDictionaryReference.swift in Sources */ = {isa = PBXBuildFile; fileRef = 64B23371BC8BF6164D9F6A05 /* WeakDictionaryReference.swift */; };
-		51910CB919287139F2DF6261 /* RectangleToastView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D867D38F60E364DA470C131D /* RectangleToastView.swift */; };
 		51DB67C5B5BC68B0A6FF54D4 /* MockRoomProxy.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ACBDC1D28EFB7789EB467E0 /* MockRoomProxy.swift */; };
-		539F448EC0250880703775DE /* LabelledActivityIndicatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6B3947F320B9F5748C736AD3 /* LabelledActivityIndicatorView.swift */; };
+		53B9C2240C2F5533246EE230 /* RectangleToastView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6235E1CE00A6D989D7DB6D47 /* RectangleToastView.swift */; };
 		56F0A22972A3BB519DA2261C /* HomeScreenViewModelProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 24F5530B2212862FA4BEFF2D /* HomeScreenViewModelProtocol.swift */; };
 		59C41313AED7566C3AC51163 /* RoomSummary.swift in Sources */ = {isa = PBXBuildFile; fileRef = 29A953B6C0C431DBF4DD00B4 /* RoomSummary.swift */; };
 		5B2C4C17888FC095ED6880B2 /* SplashViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 48971F1FFD7FC5C466889FC7 /* SplashViewController.xib */; };
@@ -75,23 +79,26 @@
 		6647430A45B4A8E692909A8F /* EmoteRoomTimelineItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = F77C060C2ACC4CB7336A29E7 /* EmoteRoomTimelineItem.swift */; };
 		67E391A2E00709FB41903B36 /* MockMediaProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6920A4869821BF72FFC58842 /* MockMediaProvider.swift */; };
 		68AC3C84E2B438036B174E30 /* EmoteRoomTimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 471EB7D96AFEA8D787659686 /* EmoteRoomTimelineView.swift */; };
+		6A367F3D7A437A79B7D9A31C /* FullscreenLoadingViewPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4112D04077F6709C5CA0A13E /* FullscreenLoadingViewPresenter.swift */; };
 		6F2AB43A1EFAD8A97AF41A15 /* Introspect in Frameworks */ = {isa = PBXBuildFile; productRef = 5986E300FC849DEAB2EE7AEB /* Introspect */; };
 		7002C55A4C917F3715765127 /* MediaProviderProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = C888BCD78E2A55DCE364F160 /* MediaProviderProtocol.swift */; };
 		7405B4824D45BA7C3D943E76 /* Application.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7D0CBC76C80E04345E11F2DB /* Application.swift */; };
 		7434A7F02D587A920B376A9A /* LoginScreenViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5A43964330459965AF048A8C /* LoginScreenViewModelTests.swift */; };
-		7684092532FBC71B73916441 /* RoundedToastView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5B4238D6EB22C0F9D7A2EEC9 /* RoundedToastView.swift */; };
 		77D7DAA41AAB36800C1F2E2D /* RoomTimelineProviderProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 095AED4CF56DFF3EB7BB84C8 /* RoomTimelineProviderProtocol.swift */; };
 		77E192BA943B90F9F310CA23 /* WeakDictionaryKeyReference.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7FFCC48E7F701B6C24484593 /* WeakDictionaryKeyReference.swift */; };
 		78B71D53C1FC55FB7A9B75F0 /* RoomTimelineController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 24B0C97D2F560BCB72BE73B1 /* RoomTimelineController.swift */; };
 		7963F98CDFDEAC75E072BD81 /* TextRoomTimelineItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = F6A8C632CEF4600107792899 /* TextRoomTimelineItem.swift */; };
+		7A54700193DC1F264368746A /* UserIndicatorPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = E077F76026C85ED96FEBB810 /* UserIndicatorPresenter.swift */; };
 		7BB31E67648CF32D2AB5E502 /* RoomScreenViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9CE3C90E487B255B735D73C8 /* RoomScreenViewModel.swift */; };
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 		7C9121245B11CA48307CB462 /* LoginScreenViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = E8FD25EB4DF66625B74E4505 /* LoginScreenViewModel.swift */; };
 		7D1DAAA364A9A29D554BD24E /* PlaceholderAvatarImage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0950733DD4BA83EEE752E259 /* PlaceholderAvatarImage.swift */; };
 		7DE5EB4CB2401C672257283C /* WeakKeyDictionary.swift in Sources */ = {isa = PBXBuildFile; fileRef = B12969CEC0051BC750DA5068 /* WeakKeyDictionary.swift */; };
 		7E1EDBA3934E6C29E5BD045B /* Bundle.swift in Sources */ = {isa = PBXBuildFile; fileRef = D77DD2DA5DC8654F2A80FF1D /* Bundle.swift */; };
 		7F19E97E7985F518C9018B83 /* RootRouter.swift in Sources */ = {isa = PBXBuildFile; fileRef = CF47564C584F614B7287F3EB /* RootRouter.swift */; };
+		7FA4227B2BAAA71560252866 /* UserIndicatorDismissal.swift in Sources */ = {isa = PBXBuildFile; fileRef = B1D1532B5D9FB0C8461A1453 /* UserIndicatorDismissal.swift */; };
+		80E04BE80A89A78FBB4863BB /* UserIndicatorViewPresentable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 193FB285430D3956B6E61E4D /* UserIndicatorViewPresentable.swift */; };
+		8775F46AE3234A5A5688C19D /* UserIndicator.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD73FAAA4A76CE4A1F3014D9 /* UserIndicator.swift */; };
 		8810A2A30A68252EBB54EE05 /* HomeScreenModels.swift in Sources */ = {isa = PBXBuildFile; fileRef = 71BC7CA1BC1041E93077BBA1 /* HomeScreenModels.swift */; };
 		8BBD3AA589DEE02A1B0923B2 /* NoticeRoomTimelineItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F49CDE349C490D617332770 /* NoticeRoomTimelineItem.swift */; };
 		8CC12086CBF91A7E10CDC205 /* HomeScreenCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = D653265D006E708E4E51AD64 /* HomeScreenCoordinator.swift */; };
@@ -103,6 +110,8 @@
 		9B8DE1D424E37581C7D99CCC /* RoomTimelineControllerProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = CC7CCC6DE5FA623E31BA8546 /* RoomTimelineControllerProtocol.swift */; };
 		9BD3A773186291560DF92B62 /* RoomTimelineProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 66F2402D738694F98729A441 /* RoomTimelineProvider.swift */; };
 		9C45CE85325CD591DADBC4CA /* ElementXTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = DBFEAC3AC691CBB84983E275 /* ElementXTests.swift */; };
+		9C9E48A627C7C166084E3F5B /* LabelledActivityIndicatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56F01DD1BBD4450E18115916 /* LabelledActivityIndicatorView.swift */; };
+		9CB5129C83F75921E5E28028 /* ToastViewState.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C82DAE0B8EB28234E84E6CF /* ToastViewState.swift */; };
 		9D2E03DB175A6AB14589076D /* Kingfisher in Frameworks */ = {isa = PBXBuildFile; productRef = 0DD568A494247444A4B56031 /* Kingfisher */; };
 		9DC5FB22B8F86C3B51E907C1 /* HomeScreenUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4D6E4C37E9F0E53D3DF951AC /* HomeScreenUITests.swift */; };
 		A0A0D2A9564BDA3FDE2E360F /* FormattedBodyText.swift in Sources */ = {isa = PBXBuildFile; fileRef = F73FF1A33198F5FAE9D34B1F /* FormattedBodyText.swift */; };
@@ -116,11 +125,12 @@
 		AB34401E4E1CAD5D2EC3072B /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9760103CF316DF68698BCFE6 /* LaunchScreen.storyboard */; };
 		B0887A7B5AFEC88981626389 /* MXLog.swift in Sources */ = {isa = PBXBuildFile; fileRef = 64839516BD56D1C81D84C5E0 /* MXLog.swift */; };
 		B4AAB3257A83B73F53FB2689 /* StateStoreViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F3DFE5B444F131648066F05 /* StateStoreViewModel.swift */; };
-		B4EF927F0C14F2F3F8D63DE8 /* ActivityCenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = ED659E775C4FCEBC977C6A08 /* ActivityCenter.swift */; };
 		B6DF6B6FA8734B70F9BF261E /* BlurHashDecode.swift in Sources */ = {isa = PBXBuildFile; fileRef = E5272BC4A60B6AD7553BACA1 /* BlurHashDecode.swift */; };
 		B80C4FABB5529DF12436FFDA /* AppIcon.pdf in Resources */ = {isa = PBXBuildFile; fileRef = 16DC8C5B2991724903F1FA6A /* AppIcon.pdf */; };
 		BE3237142FA6E1A13C0E7D11 /* RoomSummaryProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = C21ECC295F4DE8DAA86D62AC /* RoomSummaryProtocol.swift */; };
+		BEEC06EFD30BFCA02F0FD559 /* UserIndicatorTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5D8EA85D4F10D7445BB6368A /* UserIndicatorTests.swift */; };
 		BF35062D06888FA80BD139FF /* Presentable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB7F9D6FC121204D59E18DF /* Presentable.swift */; };
+		C052A8CDC7A8E7A2D906674F /* UserIndicatorStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3FAA6438B00FDB130F404E31 /* UserIndicatorStore.swift */; };
 		C4F69156C31A447FEFF2A47C /* DTHTMLElement+AttributedStringBuilder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1E508AB0EDEE017FF4F6F8D1 /* DTHTMLElement+AttributedStringBuilder.swift */; };
 		C55A44C99F64A479ABA85B46 /* RoomScreen.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5221DFDF809142A2D6AC82B9 /* RoomScreen.swift */; };
 		CB326BAB54E9B68658909E36 /* Benchmark.swift in Sources */ = {isa = PBXBuildFile; fileRef = 49EAD710A2C16EFF7C3EA16F /* Benchmark.swift */; };
@@ -129,8 +139,8 @@
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 		D0619D2E6B9C511190FBEB95 /* RoomMessageProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607974D08BD2AF83725D817A /* RoomMessageProtocol.swift */; };
 		D5EA4C6C80579279770D5804 /* ImageRoomTimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0A45283CF1DB96E583BECA6 /* ImageRoomTimelineView.swift */; };
-		D735AF72894A273F53D941B8 /* Activity.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43B33C10BC91ABFF09605DB6 /* Activity.swift */; };
 		D826154612415D2A3BB6EBF3 /* ListTableViewAdapter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4E854E7CF531DAC5CBEBDC75 /* ListTableViewAdapter.swift */; };
+		D94F664677C380A3CAB8D7F6 /* ActivityIndicatorPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 68706A66BBA04268F7747A2F /* ActivityIndicatorPresenter.swift */; };
 		DCB781BD227CA958809AFADF /* Coordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 95CC95CD75B688E946438165 /* Coordinator.swift */; };
 		DD4ADDB73E0935B74D2D18D6 /* UserSession.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8E3FE65EE63CBA65592863C2 /* UserSession.swift */; };
 		DDB80FD2753FEAAE43CC2AAE /* ImageRoomTimelineItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1A63815AD6A5C306453342F2 /* ImageRoomTimelineItem.swift */; };
@@ -146,6 +156,7 @@
 		F6F49E37272AD7397CD29A01 /* HomeScreenViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 505208F28007C0FEC14E1FF0 /* HomeScreenViewModelTests.swift */; };
 		F78C57B197DA74735FEBB42C /* EventBriefFactoryProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 92B61C243325DC76D3086494 /* EventBriefFactoryProtocol.swift */; };
 		FA9C427FFB11B1AA2DCC5602 /* RoomProxyProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47111410B6E659A697D472B5 /* RoomProxyProtocol.swift */; };
+		FC6B7436C3A5B3D0565227D5 /* ActivityIndicatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = AF05352F28D4E7336228E9F4 /* ActivityIndicatorView.swift */; };
 		FCB640C576292BEAF7FA3B2E /* SplashViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = C9F395A2E917115C7AAF7F34 /* SplashViewController.swift */; };
 		FE79E2BCCF69E8BF4D21E15A /* RoomMessageFactory.swift in Sources */ = {isa = PBXBuildFile; fileRef = FA154570F693D93513E584C1 /* RoomMessageFactory.swift */; };
 /* End PBXBuildFile section */
@@ -171,6 +182,7 @@
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+		04E1273CC3BC3E471AF87BE5 /* UserIndicatorQueueTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorQueueTests.swift; sourceTree = "<group>"; };
 		057B747CF045D3C6C30EAB2C /* fi */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = fi; path = fi.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
 		0779B2CC9A687CBB82A5B920 /* LoginScreenViewModelProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginScreenViewModelProtocol.swift; sourceTree = "<group>"; };
 		086B997409328F091EBA43CE /* RoomScreenUITests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoomScreenUITests.swift; sourceTree = "<group>"; };
@@ -194,6 +206,7 @@
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 		16DC8C5B2991724903F1FA6A /* AppIcon.pdf */ = {isa = PBXFileReference; lastKnownFileType = image.pdf; path = AppIcon.pdf; sourceTree = "<group>"; };
 		184CF8C196BE143AE226628D /* DecorationTimelineItemProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DecorationTimelineItemProtocol.swift; sourceTree = "<group>"; };
+		193FB285430D3956B6E61E4D /* UserIndicatorViewPresentable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorViewPresentable.swift; sourceTree = "<group>"; };
 		1A18F6CE4D694D21E4EA9B25 /* Strings+Untranslated.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Strings+Untranslated.swift"; sourceTree = "<group>"; };
 		1A2082B5226B2A3A4D0798B6 /* LoginScreenModels.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginScreenModels.swift; sourceTree = "<group>"; };
 		1A63815AD6A5C306453342F2 /* ImageRoomTimelineItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageRoomTimelineItem.swift; sourceTree = "<group>"; };
@@ -216,7 +229,6 @@
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 		31D6764D6976D235926FE5FC /* HomeScreenViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HomeScreenViewModel.swift; sourceTree = "<group>"; };
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-		34FB01A9AC30E2FA59678BC5 /* ActivityDismissal.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityDismissal.swift; sourceTree = "<group>"; };
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@@ -228,11 +240,13 @@
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+		3FAA6438B00FDB130F404E31 /* UserIndicatorStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorStore.swift; sourceTree = "<group>"; };
 		3FEE631F3A4AFDC6652DD9DA /* RoomTimelineViewFactory.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoomTimelineViewFactory.swift; sourceTree = "<group>"; };
 		4110685D9CA159F3FD2D6BA1 /* TextRoomMessage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextRoomMessage.swift; sourceTree = "<group>"; };
+		4112D04077F6709C5CA0A13E /* FullscreenLoadingViewPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FullscreenLoadingViewPresenter.swift; sourceTree = "<group>"; };
 		434522ED2BDED08759048077 /* fi */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = fi; path = fi.lproj/Localizable.strings; sourceTree = "<group>"; };
-		43B33C10BC91ABFF09605DB6 /* Activity.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Activity.swift; sourceTree = "<group>"; };
 		4411C0DA0087A1CB143E96FA /* EventBrief.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EventBrief.swift; sourceTree = "<group>"; };
+		4470B8CB654B097D807AA713 /* ToastViewPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ToastViewPresenter.swift; sourceTree = "<group>"; };
 		4488F5F92A64A137665C96CD /* pa */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = pa; path = pa.lproj/Localizable.strings; sourceTree = "<group>"; };
 		44AEEE13AC1BF303AE48CBF8 /* eu */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = eu; path = eu.lproj/Localizable.strings; sourceTree = "<group>"; };
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@@ -246,8 +260,9 @@
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+		4C82DAE0B8EB28234E84E6CF /* ToastViewState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ToastViewState.swift; sourceTree = "<group>"; };
 		4C8D988E82A8DFA13BE46F7C /* pl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = pl; path = pl.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
-		4CD6AC7546E8D7E5C73CEA48 /* ElementX.app */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = wrapper.application; path = ElementX.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		4CD6AC7546E8D7E5C73CEA48 /* ElementX.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ElementX.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		4D6E4C37E9F0E53D3DF951AC /* HomeScreenUITests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HomeScreenUITests.swift; sourceTree = "<group>"; };
 		4DF56C3239EA3C16951E1E66 /* is */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = is; path = is.lproj/Localizable.strings; sourceTree = "<group>"; };
 		4E854E7CF531DAC5CBEBDC75 /* ListTableViewAdapter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ListTableViewAdapter.swift; sourceTree = "<group>"; };
@@ -261,19 +276,22 @@
 		55BC11560C8A2598964FFA4C /* bs */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = bs; path = bs.lproj/Localizable.strings; sourceTree = "<group>"; };
 		55D7187F6B0C0A651AC3DFFA /* in */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = in; path = in.lproj/Localizable.strings; sourceTree = "<group>"; };
 		56008790A9C4479A6B31FDF4 /* EventBasedTimelineView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EventBasedTimelineView.swift; sourceTree = "<group>"; };
+		56F01DD1BBD4450E18115916 /* LabelledActivityIndicatorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LabelledActivityIndicatorView.swift; sourceTree = "<group>"; };
 		5773C86AF04AEF26515AD00C /* sl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = sl; path = sl.lproj/Localizable.strings; sourceTree = "<group>"; };
 		5A43964330459965AF048A8C /* LoginScreenViewModelTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginScreenViewModelTests.swift; sourceTree = "<group>"; };
-		5B4238D6EB22C0F9D7A2EEC9 /* RoundedToastView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoundedToastView.swift; sourceTree = "<group>"; };
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 		5D26A086A8278D39B5756D6F /* project.yml */ = {isa = PBXFileReference; lastKnownFileType = text.yaml; path = project.yml; sourceTree = "<group>"; };
+		5D8EA85D4F10D7445BB6368A /* UserIndicatorTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorTests.swift; sourceTree = "<group>"; };
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 		61ADFB893DEF81E58DF3FAB9 /* MockRoomTimelineController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockRoomTimelineController.swift; sourceTree = "<group>"; };
+		61B73D5E21F524A9BE44448D /* UserIndicatorRequest.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorRequest.swift; sourceTree = "<group>"; };
 		61C8F70ADAFB63907B862E5D /* LoginScreenCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginScreenCoordinator.swift; sourceTree = "<group>"; };
+		6235E1CE00A6D989D7DB6D47 /* RectangleToastView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RectangleToastView.swift; sourceTree = "<group>"; };
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 		6390A6DC140CA3D6865A66FF /* SeparatorRoomTimelineView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SeparatorRoomTimelineView.swift; sourceTree = "<group>"; };
 		64839516BD56D1C81D84C5E0 /* MXLog.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MXLog.swift; sourceTree = "<group>"; };
@@ -282,12 +300,13 @@
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 		66F2402D738694F98729A441 /* RoomTimelineProvider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoomTimelineProvider.swift; sourceTree = "<group>"; };
+		68706A66BBA04268F7747A2F /* ActivityIndicatorPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityIndicatorPresenter.swift; sourceTree = "<group>"; };
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 		6EA1D2CBAEA5D0BD00B90D1B /* BindableState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BindableState.swift; sourceTree = "<group>"; };
 		6F3DFE5B444F131648066F05 /* StateStoreViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StateStoreViewModel.swift; sourceTree = "<group>"; };
+		6FA072E995316CD18BC29313 /* UserIndicatorPresentationContext.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorPresentationContext.swift; sourceTree = "<group>"; };
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 		71D52BAA5BADB06E5E8C295D /* Assets.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Assets.swift; sourceTree = "<group>"; };
@@ -309,6 +328,7 @@
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 		858F8D0B0D51CC41BAA18E24 /* vi */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = vi; path = vi.lproj/Localizable.strings; sourceTree = "<group>"; };
+		85C2318DF4C0E601EEE31F84 /* ActivityIndicatorPresenterType.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityIndicatorPresenterType.swift; sourceTree = "<group>"; };
 		85CB1DDCEE53B946D09DF4F6 /* bn-BD */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "bn-BD"; path = "bn-BD.lproj/Localizable.strings"; sourceTree = "<group>"; };
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 		874A1842477895F199567BD7 /* TimelineView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineView.swift; sourceTree = "<group>"; };
@@ -321,13 +341,11 @@
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 		8E3FE65EE63CBA65592863C2 /* UserSession.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserSession.swift; sourceTree = "<group>"; };
-		8F7D1C4699CE71F08DC5B016 /* FullscreenLoadingActivityPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FullscreenLoadingActivityPresenter.swift; sourceTree = "<group>"; };
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 		93CF7B19FFCF8EFBE0A8696A /* RoomScreenViewModelTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoomScreenViewModelTests.swift; sourceTree = "<group>"; };
-		9525FEE63EBF02C97161BF7D /* ActivityRequest.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityRequest.swift; sourceTree = "<group>"; };
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 		967873B9E11828B67F64C89A /* UITestsAppCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UITestsAppCoordinator.swift; sourceTree = "<group>"; };
@@ -355,14 +373,19 @@
 		ADCB8A232D3A8FB3E16A7303 /* uk */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = uk; path = uk.lproj/Localizable.strings; sourceTree = "<group>"; };
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 		AE5DDBEBBA17973ED4638823 /* de */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = de; path = de.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
+		AF05352F28D4E7336228E9F4 /* ActivityIndicatorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityIndicatorView.swift; sourceTree = "<group>"; };
 		AF25E364AE85090A70AE4644 /* AttributedStringBuilderTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AttributedStringBuilderTests.swift; sourceTree = "<group>"; };
+		AFABDF2E19D349DAAAC18C65 /* RoundedToastView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoundedToastView.swift; sourceTree = "<group>"; };
 		B08CBE1E670690ECF11C2C6A /* eu */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = eu; path = eu.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
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 		B1183B55FF4B01022DA721CB /* en-GB */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "en-GB"; path = "en-GB.lproj/Localizable.strings"; sourceTree = "<group>"; };
 		B12969CEC0051BC750DA5068 /* WeakKeyDictionary.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WeakKeyDictionary.swift; sourceTree = "<group>"; };
+		B1D1532B5D9FB0C8461A1453 /* UserIndicatorDismissal.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorDismissal.swift; sourceTree = "<group>"; };
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 		B43AF03660F5FD4FFFA7F1CE /* TimelineItemContextMenu.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineItemContextMenu.swift; sourceTree = "<group>"; };
 		B5B243E7818E5E9F6A4EDC7A /* NoticeRoomTimelineView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NoticeRoomTimelineView.swift; sourceTree = "<group>"; };
+		B64F3A3D0DF86ED5A241AB05 /* ActivityIndicatorView.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = ActivityIndicatorView.xib; sourceTree = "<group>"; };
+		B695D0D12086158BAD1D9859 /* UserIndicatorPresenterSpy.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorPresenterSpy.swift; sourceTree = "<group>"; };
 		B6BDAC8895AB2B77B47703AE /* MockRoomSummary.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockRoomSummary.swift; sourceTree = "<group>"; };
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 		B80D1901BA0B095E27793EDE /* ko */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = ko; path = ko.lproj/Localizable.strings; sourceTree = "<group>"; };
@@ -381,6 +404,7 @@
 		C2886615BEBAE33A0AA4D5F8 /* RoomScreenModels.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoomScreenModels.swift; sourceTree = "<group>"; };
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 		C888BCD78E2A55DCE364F160 /* MediaProviderProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MediaProviderProtocol.swift; sourceTree = "<group>"; };
+		C91A6BC1A54CDB598EE2A81B /* UserIndicatorQueue.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorQueue.swift; sourceTree = "<group>"; };
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@@ -402,10 +426,9 @@
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-		D867D38F60E364DA470C131D /* RectangleToastView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RectangleToastView.swift; sourceTree = "<group>"; };
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-		DC54146B646F161762B54BBF /* ActivityPresentable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityPresentable.swift; sourceTree = "<group>"; };
+		DD73FAAA4A76CE4A1F3014D9 /* UserIndicator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicator.swift; sourceTree = "<group>"; };
-		E09C9DFFE9A897E439D770C5 /* ToastActivityPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ToastActivityPresenter.swift; sourceTree = "<group>"; };
+		E077F76026C85ED96FEBB810 /* UserIndicatorPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserIndicatorPresenter.swift; sourceTree = "<group>"; };
 		E0FCA0957FAA0E15A9F5579D /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = en; path = en.lproj/Untranslated.stringsdict; sourceTree = "<group>"; };
 		E157152B11E347F735C3FD6E /* tr */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = tr; path = tr.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
 		E18CF12478983A5EB390FB26 /* MessageComposer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MessageComposer.swift; sourceTree = "<group>"; };
@@ -419,7 +442,6 @@
 		E9D059BFE329BE09B6D96A9F /* ro */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = ro; path = ro.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
 		EBE5502760CF6CA2D7201883 /* ja */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = ja; path = ja.lproj/Localizable.stringsdict; sourceTree = "<group>"; };
 		ED1D792EB82506A19A72C8DE /* RoomTimelineItemProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoomTimelineItemProtocol.swift; sourceTree = "<group>"; };
-		ED659E775C4FCEBC977C6A08 /* ActivityCenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityCenter.swift; sourceTree = "<group>"; };
 		EE8BCD14EFED23459A43FDFF /* ja */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = ja; path = ja.lproj/Localizable.strings; sourceTree = "<group>"; };
 		EFFA5FD06AAAC4AF544B594E /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		F012CB5EE3F2B67359F6CC52 /* target.yml */ = {isa = PBXFileReference; lastKnownFileType = text.yaml; path = target.yml; sourceTree = "<group>"; };
@@ -593,15 +615,6 @@
 			path = View;
 			sourceTree = "<group>";
 		};
-		52C7F31749CD188294292122 /* Toasts */ = {
-			isa = PBXGroup;
-			children = (
-				D867D38F60E364DA470C131D /* RectangleToastView.swift */,
-				5B4238D6EB22C0F9D7A2EEC9 /* RoundedToastView.swift */,
-			);
-			path = Toasts;
-			sourceTree = "<group>";
-		};
 		5958CAF6E56422496E0063AF /* LoginScreen */ = {
 			isa = PBXGroup;
 			children = (
@@ -658,6 +671,7 @@
 				C070FD43DC6BF4E50217965A /* LocalizationTests.swift */,
 				5A43964330459965AF048A8C /* LoginScreenViewModelTests.swift */,
 				93CF7B19FFCF8EFBE0A8696A /* RoomScreenViewModelTests.swift */,
+				AF552BB969DC98A4BB8CF8D5 /* UserIndicators */,
 			);
 			path = Sources;
 			sourceTree = "<group>";
@@ -709,21 +723,6 @@
 			path = Media;
 			sourceTree = "<group>";
 		};
-		8EDC2B4DFB37263DDCE0E8D1 /* Activity */ = {
-			isa = PBXGroup;
-			children = (
-				43B33C10BC91ABFF09605DB6 /* Activity.swift */,
-				ED659E775C4FCEBC977C6A08 /* ActivityCenter.swift */,
-				34FB01A9AC30E2FA59678BC5 /* ActivityDismissal.swift */,
-				DC54146B646F161762B54BBF /* ActivityPresentable.swift */,
-				9525FEE63EBF02C97161BF7D /* ActivityRequest.swift */,
-				6B3947F320B9F5748C736AD3 /* LabelledActivityIndicatorView.swift */,
-				A04A0AFBCA9BCC4B44334981 /* ActivityPresenters */,
-				52C7F31749CD188294292122 /* Toasts */,
-			);
-			path = Activity;
-			sourceTree = "<group>";
-		};
 		8F9A844EB44B6AD7CA18FD96 /* HTMLParsing */ = {
 			isa = PBXGroup;
 			children = (
@@ -783,15 +782,6 @@
 			path = WeakDictionary;
 			sourceTree = "<group>";
 		};
-		A04A0AFBCA9BCC4B44334981 /* ActivityPresenters */ = {
-			isa = PBXGroup;
-			children = (
-				8F7D1C4699CE71F08DC5B016 /* FullscreenLoadingActivityPresenter.swift */,
-				E09C9DFFE9A897E439D770C5 /* ToastActivityPresenter.swift */,
-			);
-			path = ActivityPresenters;
-			sourceTree = "<group>";
-		};
 		A0C06C0F6A8621B22BFAEB56 /* Localizations */ = {
 			isa = PBXGroup;
 			children = (
@@ -823,6 +813,16 @@
 			path = Authentication;
 			sourceTree = "<group>";
 		};
+		AF552BB969DC98A4BB8CF8D5 /* UserIndicators */ = {
+			isa = PBXGroup;
+			children = (
+				B695D0D12086158BAD1D9859 /* UserIndicatorPresenterSpy.swift */,
+				04E1273CC3BC3E471AF87BE5 /* UserIndicatorQueueTests.swift */,
+				5D8EA85D4F10D7445BB6368A /* UserIndicatorTests.swift */,
+			);
+			path = UserIndicators;
+			sourceTree = "<group>";
+		};
 		B53CA9BECD3F97805E1432D0 /* HomeScreen */ = {
 			isa = PBXGroup;
 			children = (
@@ -859,10 +859,10 @@
 				95CC95CD75B688E946438165 /* Coordinator.swift */,
 				F7B81C8227BBEA95CCE86037 /* MatrixEntitityRegex.swift */,
 				64839516BD56D1C81D84C5E0 /* MXLog.swift */,
-				8EDC2B4DFB37263DDCE0E8D1 /* Activity */,
 				8F9A844EB44B6AD7CA18FD96 /* HTMLParsing */,
 				FE50232944F9E67ADD7A2D21 /* Routers */,
 				052CC920F473C10B509F9FC1 /* SwiftUI */,
+				F8474EB69289112888B65518 /* UserIndicators */,
 				9D1AFFAEB84C76D1B4FFBB3A /* WeakDictionary */,
 			);
 			path = Other;
@@ -903,6 +903,31 @@
 			path = Sources;
 			sourceTree = "<group>";
 		};
+		F8474EB69289112888B65518 /* UserIndicators */ = {
+			isa = PBXGroup;
+			children = (
+				68706A66BBA04268F7747A2F /* ActivityIndicatorPresenter.swift */,
+				85C2318DF4C0E601EEE31F84 /* ActivityIndicatorPresenterType.swift */,
+				AF05352F28D4E7336228E9F4 /* ActivityIndicatorView.swift */,
+				B64F3A3D0DF86ED5A241AB05 /* ActivityIndicatorView.xib */,
+				4112D04077F6709C5CA0A13E /* FullscreenLoadingViewPresenter.swift */,
+				56F01DD1BBD4450E18115916 /* LabelledActivityIndicatorView.swift */,
+				6235E1CE00A6D989D7DB6D47 /* RectangleToastView.swift */,
+				AFABDF2E19D349DAAAC18C65 /* RoundedToastView.swift */,
+				4470B8CB654B097D807AA713 /* ToastViewPresenter.swift */,
+				4C82DAE0B8EB28234E84E6CF /* ToastViewState.swift */,
+				DD73FAAA4A76CE4A1F3014D9 /* UserIndicator.swift */,
+				B1D1532B5D9FB0C8461A1453 /* UserIndicatorDismissal.swift */,
+				6FA072E995316CD18BC29313 /* UserIndicatorPresentationContext.swift */,
+				E077F76026C85ED96FEBB810 /* UserIndicatorPresenter.swift */,
+				C91A6BC1A54CDB598EE2A81B /* UserIndicatorQueue.swift */,
+				61B73D5E21F524A9BE44448D /* UserIndicatorRequest.swift */,
+				3FAA6438B00FDB130F404E31 /* UserIndicatorStore.swift */,
+				193FB285430D3956B6E61E4D /* UserIndicatorViewPresentable.swift */,
+			);
+			path = UserIndicators;
+			sourceTree = "<group>";
+		};
 		FCDF06BDB123505F0334B4F9 /* Timeline */ = {
 			isa = PBXGroup;
 			children = (
@@ -1115,6 +1140,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				30122AB3484AC6C3A7F6A717 /* ActivityIndicatorView.xib in Resources */,
 				B80C4FABB5529DF12436FFDA /* AppIcon.pdf in Resources */,
 				992F5E750F5030C4BA2D0D03 /* Assets.xcassets in Resources */,
 				AB34401E4E1CAD5D2EC3072B /* LaunchScreen.storyboard in Resources */,
@@ -1195,6 +1221,9 @@
 				0033481EE363E4914295F188 /* LocalizationTests.swift in Sources */,
 				7434A7F02D587A920B376A9A /* LoginScreenViewModelTests.swift in Sources */,
 				46562110EE202E580A5FFD9C /* RoomScreenViewModelTests.swift in Sources */,
+				1151DCC5EC2C6585826545EC /* UserIndicatorPresenterSpy.swift in Sources */,
+				4B8A2C45FF906ADBB1F5C3B4 /* UserIndicatorQueueTests.swift in Sources */,
+				BEEC06EFD30BFCA02F0FD559 /* UserIndicatorTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1202,11 +1231,9 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				D735AF72894A273F53D941B8 /* Activity.swift in Sources */,
+				D94F664677C380A3CAB8D7F6 /* ActivityIndicatorPresenter.swift in Sources */,
-				B4EF927F0C14F2F3F8D63DE8 /* ActivityCenter.swift in Sources */,
+				4D23C56053013437C35E511E /* ActivityIndicatorPresenterType.swift in Sources */,
-				417E2190C02B96F498592559 /* ActivityDismissal.swift in Sources */,
+				FC6B7436C3A5B3D0565227D5 /* ActivityIndicatorView.swift in Sources */,
-				3C732330B5A3D0A64142B280 /* ActivityPresentable.swift in Sources */,
-				7C72B61B30B41D76953237A8 /* ActivityRequest.swift in Sources */,
 				A636D4900E0D98ED91536482 /* AppCoordinator.swift in Sources */,
 				2FE4EEF780553B25A446BBFB /* AppDelegate.swift in Sources */,
 				90EB25D13AE6EEF034BDE9D2 /* Assets.swift in Sources */,
@@ -1230,7 +1257,7 @@
 				418B4AEFD03DC7A6D2C9D5C8 /* EventBriefFactory.swift in Sources */,
 				F78C57B197DA74735FEBB42C /* EventBriefFactoryProtocol.swift in Sources */,
 				A0A0D2A9564BDA3FDE2E360F /* FormattedBodyText.swift in Sources */,
-				3C7009EB92E77136FF7BD9D7 /* FullscreenLoadingActivityPresenter.swift in Sources */,
+				6A367F3D7A437A79B7D9A31C /* FullscreenLoadingViewPresenter.swift in Sources */,
 				964B9D2EC38C488C360CE0C9 /* HomeScreen.swift in Sources */,
 				8CC12086CBF91A7E10CDC205 /* HomeScreenCoordinator.swift in Sources */,
 				8810A2A30A68252EBB54EE05 /* HomeScreenModels.swift in Sources */,
@@ -1241,7 +1268,7 @@
 				D5EA4C6C80579279770D5804 /* ImageRoomTimelineView.swift in Sources */,
 				2D8A687149E46B8C8B989561 /* KeychainController.swift in Sources */,
 				277D2531C70F207A2F9F5906 /* KeychainControllerProtocol.swift in Sources */,
-				539F448EC0250880703775DE /* LabelledActivityIndicatorView.swift in Sources */,
+				9C9E48A627C7C166084E3F5B /* LabelledActivityIndicatorView.swift in Sources */,
 				D826154612415D2A3BB6EBF3 /* ListTableViewAdapter.swift in Sources */,
 				A941EAD7F407F2ED6DA54A31 /* LoginScreen.swift in Sources */,
 				306CC09DF101E7E9CDE79AA5 /* LoginScreenCoordinator.swift in Sources */,
@@ -1272,7 +1299,7 @@
 				368C8758FCD079E6AAA18C2C /* NoticeRoomTimelineView.swift in Sources */,
 				7D1DAAA364A9A29D554BD24E /* PlaceholderAvatarImage.swift in Sources */,
 				BF35062D06888FA80BD139FF /* Presentable.swift in Sources */,
-				51910CB919287139F2DF6261 /* RectangleToastView.swift in Sources */,
+				53B9C2240C2F5533246EE230 /* RectangleToastView.swift in Sources */,
 				FE79E2BCCF69E8BF4D21E15A /* RoomMessageFactory.swift in Sources */,
 				D0619D2E6B9C511190FBEB95 /* RoomMessageProtocol.swift in Sources */,
 				4FC1EFE4968A259CBBACFAFB /* RoomProxy.swift in Sources */,
@@ -1294,7 +1321,7 @@
 				CF82143AA4A4F7BD11D22946 /* RoomTimelineViewProvider.swift in Sources */,
 				7F19E97E7985F518C9018B83 /* RootRouter.swift in Sources */,
 				2C0CE61E5DC177938618E0B1 /* RootRouterType.swift in Sources */,
-				7684092532FBC71B73916441 /* RoundedToastView.swift in Sources */,
+				462813B93C39DF93B1249403 /* RoundedToastView.swift in Sources */,
 				1281625B25371BE53D36CB3A /* SeparatorRoomTimelineItem.swift in Sources */,
 				49F2E7DD8CAACE09CEECE3E6 /* SeparatorRoomTimelineView.swift in Sources */,
 				FCB640C576292BEAF7FA3B2E /* SplashViewController.swift in Sources */,
@@ -1307,10 +1334,19 @@
 				01CB8ACFA5E143E89C168CA8 /* TimelineItemContextMenu.swift in Sources */,
 				4D970CB606276717B43E2332 /* TimelineItemList.swift in Sources */,
 				500CB65ED116B81DA52FDAEE /* TimelineView.swift in Sources */,
-				15FEC447B7FEA62F418732AC /* ToastActivityPresenter.swift in Sources */,
+				4669804D0369FBED4E8625D1 /* ToastViewPresenter.swift in Sources */,
+				9CB5129C83F75921E5E28028 /* ToastViewState.swift in Sources */,
 				0EE5EBA18BA1FE10254BB489 /* UIFont+AttributedStringBuilder.m in Sources */,
 				03CB204C52F18E24A5C3D219 /* UITestsAppCoordinator.swift in Sources */,
 				17CC4FB64F3A670F43ECBE5F /* UITestsRootView.swift in Sources */,
+				8775F46AE3234A5A5688C19D /* UserIndicator.swift in Sources */,
+				7FA4227B2BAAA71560252866 /* UserIndicatorDismissal.swift in Sources */,
+				0602FA07557F580086782A9E /* UserIndicatorPresentationContext.swift in Sources */,
+				7A54700193DC1F264368746A /* UserIndicatorPresenter.swift in Sources */,
+				10866439ABA58CCDB5D1459D /* UserIndicatorQueue.swift in Sources */,
+				15D1F9C415D9C921643BA82E /* UserIndicatorRequest.swift in Sources */,
+				C052A8CDC7A8E7A2D906674F /* UserIndicatorStore.swift in Sources */,
+				80E04BE80A89A78FBB4863BB /* UserIndicatorViewPresentable.swift in Sources */,
 				DD4ADDB73E0935B74D2D18D6 /* UserSession.swift in Sources */,
 				01F4A40C1EDCEC8DC4EC9CFA /* WeakDictionary.swift in Sources */,
 				77E192BA943B90F9F310CA23 /* WeakDictionaryKeyReference.swift in Sources */,
@@ -1528,7 +1564,7 @@
 				SDKROOT = iphoneos;
 				SUPPORTS_MACCATALYST = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "ElementX/SupportingFiles/ElementX-Bridging-Header.h";
-				SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
@@ -1552,7 +1588,7 @@
 				SDKROOT = iphoneos;
 				SUPPORTS_MACCATALYST = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "ElementX/SupportingFiles/ElementX-Bridging-Header.h";
-				SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;

ElementX/Sources/AppCoordinator.swift

@@ -20,8 +20,9 @@ class AppCoordinator: AuthenticationCoordinatorDelegate, Coordinator {
     
     private let memberDetailProviderManager: MemberDetailProviderManager
         
-    private var loadingActivity: Activity?
+    private var indicatorPresenter: UserIndicatorTypePresenterProtocol
-    private var errorActivity: Activity?
+    private var loadingIndicator: UserIndicator?
+    private var errorIndicator: UserIndicator?
     
     var childCoordinators: [Coordinator] = []
     
@@ -35,6 +36,8 @@ class AppCoordinator: AuthenticationCoordinatorDelegate, Coordinator {
         
         memberDetailProviderManager = MemberDetailProviderManager()
         
+        indicatorPresenter = UserIndicatorTypePresenter(presentingViewController: mainNavigationController)
+        
         guard let bundleIdentifier = Bundle.main.bundleIdentifier else {
             fatalError("Should have a valid bundle identifier at this point")
         }
@@ -143,30 +146,14 @@ class AppCoordinator: AuthenticationCoordinatorDelegate, Coordinator {
     }
     
     private func showLoadingIndicator() {
-        let presenter = FullscreenLoadingActivityPresenter(label: "Loading",
+        loadingIndicator = indicatorPresenter.present(.loading(label: "Loading", isInteractionBlocking: true))
-                                                           on: mainNavigationController)
-        
-        let request = ActivityRequest(
-            presenter: presenter,
-            dismissal: .manual
-        )
-        
-        loadingActivity = ActivityCenter.shared.add(request)
     }
     
     private func hideLoadingIndicator() {
-        loadingActivity = nil
+        loadingIndicator = nil
     }
     
     private func showLoginErrorToast() {
-        let presenter = ToastActivityPresenter(viewState: .init(style: .success, label: "Failed logging in"),
+        errorIndicator = indicatorPresenter.present(.success(label: "Failed logging in"))
-                                               navigationController: mainNavigationController)
-        
-        let request = ActivityRequest(
-            presenter: presenter,
-            dismissal: .timeout(3.0)
-        )
-        
-        errorActivity = ActivityCenter.shared.add(request)
     }
 }

ElementX/Sources/Other/Activity/ActivityPresenters/FullscreenLoadingActivityPresenter.swift

@@ -1,67 +0,0 @@
-// 
-// Copyright 2021 New Vector Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-import Foundation
-import UIKit
-
-/// An `ActivityPresenter` responsible for showing / hiding a full-screen loading view that obscures (and thus disables) all other controls.
-/// It is managed by an `Activity`, meaning the `present` and `dismiss` methods will be called when the parent `Activity` starts or completes.
-class FullscreenLoadingActivityPresenter: ActivityPresentable {
-    private let label: String
-    private weak var viewController: UIViewController?
-    private weak var view: UIView?
-    
-    init(label: String, on viewController: UIViewController) {
-        self.label = label
-        self.viewController = viewController
-    }
-
-    func present() {
-        let view = LabelledActivityIndicatorView(text: label)
-        self.view = view
-        
-        guard let window = viewController?.view.window else {
-            return
-        }
-        
-        view.translatesAutoresizingMaskIntoConstraints = false
-        window.addSubview(view)
-        NSLayoutConstraint.activate([
-            view.topAnchor.constraint(equalTo: window.topAnchor),
-            view.bottomAnchor.constraint(equalTo: window.bottomAnchor),
-            view.leadingAnchor.constraint(equalTo: window.leadingAnchor),
-            view.trailingAnchor.constraint(equalTo: window.trailingAnchor)
-        ])
-        
-        view.alpha = 0
-        CATransaction.commit()
-        UIView.animate(withDuration: 0.2) {
-            view.alpha = 1
-        }
-    }
-    
-    func dismiss() {
-        guard let view = view, view.superview != nil else {
-            return
-        }
-        
-        UIView.animate(withDuration: 0.2, delay: 0, options: .beginFromCurrentState) {
-            view.alpha = 0
-        } completion: { _ in
-            view.removeFromSuperview()
-        }
-    }
-}

ElementX/Sources/Other/Activity/ActivityPresenters/ToastActivityPresenter.swift

@@ -1,70 +0,0 @@
-// 
-// Copyright 2021 New Vector Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-import Foundation
-import UIKit
-
-/// An `ActivityPresenter` responsible for showing / hiding a toast view for activity indicators or success messages.
-/// It is managed by an `Activity`, meaning the `present` and `dismiss` methods will be called when the parent `Activity` starts or completes.
-class ToastActivityPresenter: ActivityPresentable {
-    private let viewState: RoundedToastView.ViewState
-    private weak var navigationController: UINavigationController?
-    private weak var view: UIView?
-    
-    init(viewState: RoundedToastView.ViewState, navigationController: UINavigationController) {
-        self.viewState = viewState
-        self.navigationController = navigationController
-    }
-    
-    func present() {
-        guard let navigationController = navigationController,
-        let window = navigationController.view.window else {
-            return
-        }
-        
-        let view = RoundedToastView(viewState: viewState)
-        self.view = view
-        
-        view.translatesAutoresizingMaskIntoConstraints = false
-        window.addSubview(view)
-        NSLayoutConstraint.activate([
-            view.centerXAnchor.constraint(equalTo: navigationController.navigationBar.centerXAnchor),
-            view.topAnchor.constraint(equalTo: navigationController.navigationBar.bottomAnchor)
-        ])
-        
-        view.alpha = 0
-        CATransaction.flush()
-        view.transform = .init(translationX: 0, y: 5)
-        
-        UIView.animate(withDuration: 0.2) {
-            view.alpha = 1
-            view.transform = .identity
-        }
-    }
-    
-    func dismiss() {
-        guard let view = view, view.superview != nil else {
-            return
-        }
-        
-        UIView.animate(withDuration: 0.2, delay: 0, options: .beginFromCurrentState) {
-            view.alpha = 0
-            view.transform = .init(translationX: 0, y: -5)
-        } completion: { _ in
-            view.removeFromSuperview()
-        }
-    }
-}

ElementX/Sources/Other/UserIndicators/ActivityIndicatorPresenter.swift

@@ -0,0 +1,148 @@
+/*
+ Copyright 2019 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+import UIKit
+
+/// Used to present activity indicator on a view
+final class ActivityIndicatorPresenter: ActivityIndicatorPresenterType {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let animationDuration: TimeInterval = 0.3
+        static let backgroundOverlayColor = UIColor.clear
+        static let backgroundOverlayAlpha: CGFloat = 1.0
+    }
+    
+    // MARK: - Properties
+    
+    private weak var backgroundOverlayView: UIView?
+    private weak var activityIndicatorView: ActivityIndicatorView?
+    private weak var presentingView: UIView?
+    
+    var isPresenting: Bool {
+        return self.activityIndicatorView != nil
+    }
+    
+    // MARK: - Public
+    
+    func presentActivityIndicator(on view: UIView, animated: Bool, completion: (() -> Void)? = nil) {
+        if self.presentingView != nil {
+            if let completion = completion {
+                completion()
+            }
+            return
+        }
+
+        self.presentingView = view
+        
+        view.isUserInteractionEnabled = false
+        
+        let backgroundOverlayView = self.createBackgroundOverlayView(with: view.frame)
+        
+        let activityIndicatorView = ActivityIndicatorView()
+        
+        // Add activityIndicatorView on backgroundOverlayView centered
+        backgroundOverlayView.addSubview(activityIndicatorView)
+        activityIndicatorView.translatesAutoresizingMaskIntoConstraints = false
+        activityIndicatorView.centerXAnchor.constraint(equalTo: backgroundOverlayView.centerXAnchor).isActive = true
+        activityIndicatorView.centerYAnchor.constraint(equalTo: backgroundOverlayView.centerYAnchor).isActive = true
+        
+        activityIndicatorView.startAnimating()
+        
+        backgroundOverlayView.alpha = 0
+        backgroundOverlayView.isHidden = false
+        
+        view.vc_addSubViewMatchingParent(backgroundOverlayView)
+        
+        self.backgroundOverlayView = backgroundOverlayView
+        self.activityIndicatorView = activityIndicatorView
+        
+        let animationInstructions = {
+            backgroundOverlayView.alpha = Constants.backgroundOverlayAlpha
+        }
+        
+        if animated {
+            UIView.animate(withDuration: Constants.animationDuration, animations: {
+                animationInstructions()
+            }, completion: { _ in
+                completion?()
+            })
+        } else {
+            animationInstructions()
+            completion?()
+        }
+    }
+    
+    func removeCurrentActivityIndicator(animated: Bool, completion: (() -> Void)? = nil) {
+        guard let presentingView = self.presentingView,
+            let backgroundOverlayView = self.backgroundOverlayView,
+            let activityIndicatorView = self.activityIndicatorView else {
+            return
+        }
+        
+        presentingView.isUserInteractionEnabled = true
+        self.presentingView = nil
+        
+        let animationInstructions = {
+            activityIndicatorView.alpha = 0
+        }
+        
+        let animationCompletionInstructions = {
+            activityIndicatorView.stopAnimating()
+            backgroundOverlayView.isHidden = true
+            backgroundOverlayView.removeFromSuperview()
+        }
+        
+        if animated {
+            UIView.animate(withDuration: Constants.animationDuration, animations: {
+                animationInstructions()
+            }, completion: { _ in
+                animationCompletionInstructions()
+            })
+        } else {
+            animationInstructions()
+            animationCompletionInstructions()
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func createBackgroundOverlayView(with frame: CGRect = CGRect.zero) -> UIView {
+        let backgroundOverlayView = UIView(frame: frame)
+        backgroundOverlayView.backgroundColor = Constants.backgroundOverlayColor
+        backgroundOverlayView.alpha = Constants.backgroundOverlayAlpha
+        return backgroundOverlayView
+    }
+}
+
+private extension UIView {
+    
+    /// Add a subview matching parent view using autolayout
+    @objc func vc_addSubViewMatchingParent(_ subView: UIView) {
+        self.addSubview(subView)
+        subView.translatesAutoresizingMaskIntoConstraints = false
+        let views = ["view": subView]
+        ["H:|[view]|", "V:|[view]|"].forEach { vfl in
+            let constraints = NSLayoutConstraint.constraints(withVisualFormat: vfl,
+                                                             options: [],
+                                                             metrics: nil,
+                                                             views: views)
+            constraints.forEach { $0.isActive = true }
+        }
+    }
+}

ElementX/Sources/Other/UserIndicators/ActivityIndicatorPresenterType.swift

@@ -0,0 +1,34 @@
+/*
+ Copyright 2019 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+/// Protocol used to present activity indicator on a view
+protocol ActivityIndicatorPresenterType {
+    func presentActivityIndicator(on view: UIView, animated: Bool, completion: (() -> Void)?)
+    func removeCurrentActivityIndicator(animated: Bool, completion: (() -> Void)?)
+}
+
+// `ActivityIndicatorPresenterType` default implementation
+extension ActivityIndicatorPresenterType {
+    func presentActivityIndicator(on view: UIView, animated: Bool) {
+        self.presentActivityIndicator(on: view, animated: animated, completion: nil)
+    }
+    
+    func removeCurrentActivityIndicator(animated: Bool) {
+        self.removeCurrentActivityIndicator(animated: animated, completion: nil)
+    }
+}

ElementX/Sources/Other/UserIndicators/ActivityIndicatorView.swift

@@ -0,0 +1,112 @@
+/*
+ Copyright 2019 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+final class ActivityIndicatorView: UIView {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let cornerRadius: CGFloat = 5.0
+        static let activityIndicatorMargin = CGSize(width: 30.0, height: 30.0)
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var activityIndicatorView: UIActivityIndicatorView!
+    @IBOutlet private weak var activityIndicatorBackgroundView: UIView!
+    
+    // MARK: Public
+    
+    var color: UIColor? {
+        get {
+            return activityIndicatorView.color
+        }
+        set {            
+            activityIndicatorView.color = newValue
+        }
+    }
+    
+    // MARK: - Setup
+    
+    private func commonInit() {        
+        self.activityIndicatorBackgroundView.layer.masksToBounds = true
+    }
+    
+    convenience init() {
+        self.init(frame: CGRect.zero)
+    }
+    
+    required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        self.loadNibContent()
+        self.commonInit()
+    }
+    
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        self.loadNibContent()
+        self.commonInit()
+    }
+    
+    // MARK: - Overrides
+    
+    override var intrinsicContentSize: CGSize {
+        return CGSize(width: self.activityIndicatorView.intrinsicContentSize.width + Constants.activityIndicatorMargin.width,
+                      height: self.activityIndicatorView.intrinsicContentSize.height + Constants.activityIndicatorMargin.height)
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        self.activityIndicatorBackgroundView.layer.cornerRadius = Constants.cornerRadius
+    }
+    
+    // MARK: - Public
+    
+    func startAnimating() {
+        self.activityIndicatorView.startAnimating()
+    }
+    
+    func stopAnimating() {
+        self.activityIndicatorView.stopAnimating()
+    }
+}
+
+private extension UIView {
+    static var nib: UINib {
+      return UINib(nibName: String(describing: self), bundle: Bundle(for: self))
+    }
+    
+    func loadNibContent() {
+      let layoutAttributes: [NSLayoutConstraint.Attribute] = [.top, .leading, .bottom, .trailing]
+      for case let view as UIView in type(of: self).nib.instantiate(withOwner: self, options: nil) {
+        view.translatesAutoresizingMaskIntoConstraints = false
+        self.addSubview(view)
+        NSLayoutConstraint.activate(layoutAttributes.map { attribute in
+          NSLayoutConstraint(
+            item: view, attribute: attribute,
+            relatedBy: .equal,
+            toItem: self, attribute: attribute,
+            multiplier: 1, constant: 0.0
+          )
+        })
+      }
+    }
+}

ElementX/Sources/Other/UserIndicators/ActivityIndicatorView.xib

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="ActivityIndicatorView" customModule="Riot" customModuleProvider="target">
+            <connections>
+                <outlet property="activityIndicatorBackgroundView" destination="2qY-Ui-WjQ" id="obw-ml-Ppb"/>
+                <outlet property="activityIndicatorView" destination="32q-cl-Ru4" id="38r-gn-BJg"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="DuQ-Nt-i8B">
+            <rect key="frame" x="0.0" y="0.0" width="375" height="204"/>
+            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+            <subviews>
+                <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="2qY-Ui-WjQ">
+                    <rect key="frame" x="0.0" y="0.0" width="375" height="204"/>
+                    <subviews>
+                        <activityIndicatorView opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" style="white" translatesAutoresizingMaskIntoConstraints="NO" id="32q-cl-Ru4">
+                            <rect key="frame" x="15" y="15" width="345" height="174"/>
+                        </activityIndicatorView>
+                    </subviews>
+                    <color key="backgroundColor" red="0.80000000000000004" green="0.80000000000000004" blue="0.80000000000000004" alpha="0.89787029109589045" colorSpace="calibratedRGB"/>
+                    <constraints>
+                        <constraint firstItem="32q-cl-Ru4" firstAttribute="top" secondItem="2qY-Ui-WjQ" secondAttribute="top" constant="15" id="hLL-Ao-h6a"/>
+                        <constraint firstItem="32q-cl-Ru4" firstAttribute="centerX" secondItem="2qY-Ui-WjQ" secondAttribute="centerX" id="n1z-Rb-ce3"/>
+                        <constraint firstItem="32q-cl-Ru4" firstAttribute="leading" secondItem="2qY-Ui-WjQ" secondAttribute="leading" constant="15" id="tTB-ZQ-Xrm"/>
+                        <constraint firstItem="32q-cl-Ru4" firstAttribute="centerY" secondItem="2qY-Ui-WjQ" secondAttribute="centerY" id="ty6-5W-zen"/>
+                    </constraints>
+                </view>
+            </subviews>
+            <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+            <constraints>
+                <constraint firstItem="Zud-2y-G9d" firstAttribute="bottom" secondItem="2qY-Ui-WjQ" secondAttribute="bottom" id="F2N-Wt-CCH"/>
+                <constraint firstItem="2qY-Ui-WjQ" firstAttribute="top" secondItem="Zud-2y-G9d" secondAttribute="top" id="V7A-HL-11f"/>
+                <constraint firstItem="2qY-Ui-WjQ" firstAttribute="leading" secondItem="Zud-2y-G9d" secondAttribute="leading" id="jbB-4Q-tNb"/>
+                <constraint firstItem="Zud-2y-G9d" firstAttribute="trailing" secondItem="2qY-Ui-WjQ" secondAttribute="trailing" id="psU-2p-PBH"/>
+            </constraints>
+            <nil key="simulatedStatusBarMetrics"/>
+            <nil key="simulatedTopBarMetrics"/>
+            <nil key="simulatedBottomBarMetrics"/>
+            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
+            <viewLayoutGuide key="safeArea" id="Zud-2y-G9d"/>
+            <point key="canvasLocation" x="55" y="-605"/>
+        </view>
+    </objects>
+</document>

ElementX/Sources/Other/UserIndicators/FullscreenLoadingViewPresenter.swift

@@ -0,0 +1,75 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import UIKit
+
+/// A presenter responsible for showing / hiding a full-screen loading view that obscures (and thus disables) all other controls.
+/// It is managed by a `UserIndicator`, meaning the `present` and `dismiss` methods will be called when the parent `UserIndicator` starts or completes.
+class FullscreenLoadingViewPresenter: UserIndicatorViewPresentable {
+    private let label: String
+    private let presentationContext: UserIndicatorPresentationContext
+    private weak var view: UIView?
+    private var animator: UIViewPropertyAnimator?
+    
+    init(label: String, presentationContext: UserIndicatorPresentationContext) {
+        self.label = label
+        self.presentationContext = presentationContext
+    }
+
+    func present() {
+        // Find the current top navigation controller
+        var presentingController: UIViewController? = presentationContext.indicatorPresentingViewController
+        while presentingController?.navigationController != nil {
+            presentingController = presentingController?.navigationController
+        }
+        guard let presentingController = presentingController else {
+            return
+        }
+        
+        let view = LabelledActivityIndicatorView(text: label)
+        self.view = view
+        
+        view.translatesAutoresizingMaskIntoConstraints = false
+        presentingController.view.addSubview(view)
+        NSLayoutConstraint.activate([
+            view.topAnchor.constraint(equalTo: presentingController.view.topAnchor),
+            view.bottomAnchor.constraint(equalTo: presentingController.view.bottomAnchor),
+            view.leadingAnchor.constraint(equalTo: presentingController.view.leadingAnchor),
+            view.trailingAnchor.constraint(equalTo: presentingController.view.trailingAnchor)
+        ])
+        
+        view.alpha = 0
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeOut) {
+            view.alpha = 1
+        }
+        animator?.startAnimation()
+    }
+    
+    func dismiss() {
+        guard let view = view, view.superview != nil else {
+            return
+        }
+        
+        animator?.stopAnimation(true)
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeIn) {
+            view.alpha = 0
+        }
+        animator?.addCompletion { _ in
+            view.removeFromSuperview()
+        }
+        animator?.startAnimation()
+    }
+}

ElementX/Sources/Other/UserIndicators/RoundedToastView.swift

@@ -14,17 +14,21 @@
 // limitations under the License.
 //
 
-import Foundation
 import UIKit
 
 class RoundedToastView: UIView {
+    private struct ShadowStyle {
+        let offset: CGSize
+        let radius: CGFloat
+        let opacity: Float
+    }
+    
     private struct Constants {
         static let padding = UIEdgeInsets(top: 10, left: 12, bottom: 10, right: 12)
         static let activityIndicatorScale = CGFloat(0.75)
         static let imageViewSize = CGFloat(15)
-        static let shadowOffset = CGSize(width: 0, height: 4)
+        static let lightShadow = ShadowStyle(offset: .init(width: 0, height: 4), radius: 12, opacity: 0.1)
-        static let shadowRadius = CGFloat(12)
+        static let darkShadow = ShadowStyle(offset: .init(width: 0, height: 4), radius: 4, opacity: 0.2)
-        static let shadowOpacity = Float(0.1)
     }
     
     private lazy var activityIndicator: UIActivityIndicatorView = {
@@ -34,7 +38,7 @@ class RoundedToastView: UIView {
         return indicator
     }()
     
-    private lazy var imagView: UIImageView = {
+    private lazy var imageView: UIImageView = {
         let imageView = UIImageView()
         imageView.contentMode = .scaleAspectFit
         imageView.translatesAutoresizingMaskIntoConstraints = false
@@ -57,7 +61,7 @@ class RoundedToastView: UIView {
         return UILabel()
     }()
 
-    init(viewState: ViewState) {
+    init(viewState: ToastViewState) {
         super.init(frame: .zero)
         setup(viewState: viewState)
     }
@@ -66,11 +70,10 @@ class RoundedToastView: UIView {
         fatalError("init(coder:) has not been implemented")
     }
 
-    private func setup(viewState: ViewState) {
+    private func setup(viewState: ToastViewState) {
         
         backgroundColor = .gray.withAlphaComponent(0.75)
         
-        setupLayer()
         setupStackView()
         stackView.addArrangedSubview(toastView(for: viewState.style))
         stackView.addArrangedSubview(label)
@@ -88,36 +91,18 @@ class RoundedToastView: UIView {
         ])
     }
     
-    private func setupLayer() {
-        layer.shadowColor = UIColor.black.cgColor
-        layer.shadowOffset = Constants.shadowOffset
-        layer.shadowRadius = Constants.shadowRadius
-        layer.shadowOpacity = Constants.shadowOpacity
-    }
-    
     override func layoutSubviews() {
         super.layoutSubviews()
         layer.cornerRadius = layer.frame.height / 2
     }
         
-    private func toastView(for style: Style) -> UIView {
+    private func toastView(for style: ToastViewState.Style) -> UIView {
         switch style {
         case .loading:
             return activityIndicator
         case .success:
-            imagView.image = UIImage(systemName: "checkmark.circle")
+            imageView.image = UIImage(systemName: "checkmark.circle")
-            return imagView
+            return imageView
         }
     }
 }
-
-extension RoundedToastView {
-    enum Style {
-        case loading
-        case success
-    }
-    struct ViewState {
-        let style: Style
-        let label: String
-    }
-}

ElementX/Sources/Other/UserIndicators/ToastViewPresenter.swift

@@ -0,0 +1,93 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import UIKit
+
+/// A presenter responsible for showing / hiding a toast view for loading spinners or success messages.
+/// It is managed by an `UserIndicator`, meaning the `present` and `dismiss` methods will be called when the parent `UserIndicator` starts or completes.
+class ToastViewPresenter: UserIndicatorViewPresentable {
+    struct Constants {
+        static let navigationBarPatting = CGFloat(10)
+    }
+    
+    private let viewState: ToastViewState
+    private let presentationContext: UserIndicatorPresentationContext
+    private weak var view: UIView?
+    private var animator: UIViewPropertyAnimator?
+    
+    init(viewState: ToastViewState, presentationContext: UserIndicatorPresentationContext) {
+        self.viewState = viewState
+        self.presentationContext = presentationContext
+    }
+
+    func present() {
+        guard let viewController = presentationContext.indicatorPresentingViewController else {
+            return
+        }
+        
+        let view = RoundedToastView(viewState: viewState)
+        self.view = view
+        
+        view.translatesAutoresizingMaskIntoConstraints = false
+        if let navigation = viewController.topNavigationController {
+            navigation.view.addSubview(view)
+            NSLayoutConstraint.activate([
+                view.centerXAnchor.constraint(equalTo: navigation.view.centerXAnchor),
+                view.topAnchor.constraint(equalTo: navigation.navigationBar.safeAreaLayoutGuide.bottomAnchor, constant: -Constants.navigationBarPatting)
+            ])
+        } else {
+            viewController.view.addSubview(view)
+            NSLayoutConstraint.activate([
+                view.centerXAnchor.constraint(equalTo: viewController.view.centerXAnchor),
+                view.topAnchor.constraint(equalTo: viewController.view.topAnchor)
+            ])
+        }
+        
+        view.alpha = 0
+        view.transform = .init(translationX: 0, y: 5)
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeOut) {
+            view.alpha = 1
+            view.transform = .identity
+        }
+        animator?.startAnimation()
+    }
+    
+    func dismiss() {
+        guard let view = view, view.superview != nil else {
+            return
+        }
+        
+        animator?.stopAnimation(true)
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeIn) {
+            view.alpha = 0
+            view.transform = .init(translationX: 0, y: -5)
+        }
+        animator?.addCompletion { _ in
+            view.removeFromSuperview()
+        }
+        animator?.startAnimation()
+    }
+}
+
+private extension UIViewController {
+    var topNavigationController: UINavigationController? {
+        var controller: UINavigationController? = self as? UINavigationController ?? navigationController
+        while controller?.navigationController != nil {
+            controller = controller?.navigationController
+        }
+        return controller
+    }
+}

ElementX/Sources/Other/UserIndicators/ToastViewState.swift

@@ -0,0 +1,27 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+struct ToastViewState {
+    enum Style {
+        case loading
+        case success
+    }
+    
+    let style: Style
+    let label: String
+}

ElementX/Sources/Other/UserIndicators/UserIndicator.swift

@@ -17,27 +17,27 @@
 import Foundation
 import UIKit
 
-/// An `Activity` represents the state of a temporary visual indicator, such as activity indicator, success notification or an error message. It does not directly manage the UI, instead it delegates to a `presenter`
+/// A `UserIndicator` represents the state of a temporary visual indicator, such as loading spinner, success notification or an error message. It does not directly manage the UI, instead it delegates to a `presenter`
 /// whenever the UI should be shown or hidden.
 ///
-/// More than one `Activity` may be requested by the system at the same time (e.g. global syncing vs local refresh),
+/// More than one `UserIndicator` may be requested by the system at the same time (e.g. global syncing vs local refresh),
-/// and the `ActivityCenter` will ensure that only one activity is shown at a given time, putting the other in a pending queue.
+/// and the `UserIndicatorQueue` will ensure that only one indicator is shown at a given time, putting the other in a pending queue.
 ///
-/// A client that requests an activity can specify a default timeout after which the activity is dismissed, or it has to be manually
+/// A client that requests an indicator can specify a default timeout after which the indicator is dismissed, or it has to be manually
 /// responsible for dismissing it via `cancel` method, or by deallocating itself.
-public class Activity {
+public class UserIndicator {
     public enum State {
         case pending
         case executing
         case completed
     }
     
-    private let request: ActivityRequest
+    private let request: UserIndicatorRequest
     private let completion: () -> Void
 
     public private(set) var state: State
     
-    public init(request: ActivityRequest, completion: @escaping () -> Void) {
+    public init(request: UserIndicatorRequest, completion: @escaping () -> Void) {
         self.request = request
         self.completion = completion
         
@@ -66,10 +66,11 @@ public class Activity {
         }
     }
     
-    /// Cancel the activity, triggering any dismissal action / animation
+    /// Cancel the indicator, triggering any dismissal action / animation
     ///
-    /// Note: clients can call this method directly, if they have access to the `Activity`.
+    /// Note: clients can call this method directly, if they have access to the `UserIndicator`. Alternatively
-    /// Once cancelled, `ActivityCenter` will automatically start the next `Activity` in the queue.
+    /// deallocating the `UserIndicator` will call `cancel` automatically.
+    /// Once cancelled, `UserIndicatorQueue` will automatically start the next `UserIndicator` in the queue.
     public func cancel() {
         complete()
     }
@@ -87,13 +88,13 @@ public class Activity {
     }
 }
 
-public extension Activity {
+public extension UserIndicator {
-    func store<C>(in collection: inout C) where C: RangeReplaceableCollection, C.Element == Activity {
+    func store<C>(in collection: inout C) where C: RangeReplaceableCollection, C.Element == UserIndicator {
         collection.append(self)
     }
 }
 
-public extension Collection where Element == Activity {
+public extension Collection where Element == UserIndicator {
     func cancelAll() {
         forEach {
             $0.cancel()

ElementX/Sources/Other/UserIndicators/UserIndicatorDismissal.swift

@@ -16,10 +16,10 @@
 
 import Foundation
 
-/// Different ways in which an `Activity` can be dismissed
+/// Different ways in which a `UserIndicator` can be dismissed
-public enum ActivityDismissal {
+public enum UserIndicatorDismissal {
-    /// The `Activity` will not manage the dismissal, but will expect the calling client to do so manually
+    /// The `UserIndicator` will not manage the dismissal, but will expect the calling client to do so manually
     case manual
-    /// The `Activity` will be automatically dismissed after `TimeInterval`
+    /// The `UserIndicator` will be automatically dismissed after `TimeInterval`
     case timeout(TimeInterval)
 }

ElementX/Sources/Other/UserIndicators/UserIndicatorPresentationContext.swift

@@ -0,0 +1,42 @@
+// 
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+import UIKit
+
+/// The presentation context is used by `UserIndicatorViewPresentable`s to display content
+/// on the screen and it serves two primary purposes:
+///
+/// - abstraction on top of UIKit (passing context instead of view controllers)
+/// - immutable context passed at init with variable presenting view controller
+///   (e.g. depending on collapsed / uncollapsed iPad presentation that changes
+///   at runtime)
+public protocol UserIndicatorPresentationContext {
+    var indicatorPresentingViewController: UIViewController? { get }
+}
+
+/// A simple implementation of `UserIndicatorPresentationContext` that uses a weak reference
+/// to the passed-in view controller as the presentation context.
+public class StaticUserIndicatorPresentationContext: UserIndicatorPresentationContext {
+    // The presenting view controller will be the parent of the user indicator,
+    // and the indicator holds a strong reference to the context, so the view controller
+    // must be decleared `weak` to avoid a retain cycle
+    public private(set) weak var indicatorPresentingViewController: UIViewController?
+    
+    public init(viewController: UIViewController) {
+        self.indicatorPresentingViewController = viewController
+    }
+}

ElementX/Sources/Other/UserIndicators/UserIndicatorPresenter.swift

@@ -0,0 +1,116 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import UIKit
+
+/// A set of user interactors commonly used across the app
+enum UserIndicatorType {
+    case loading(label: String, isInteractionBlocking: Bool)
+    case success(label: String)
+}
+
+/// A presenter which can handle `UserIndicatorType` by creating the underlying `UserIndicator`
+/// and adding it to its `UserIndicatorQueue`
+protocol UserIndicatorTypePresenterProtocol {
+    /// Present a new type of user indicator, such as loading spinner or success message.
+    ///
+    /// The presenter will internally convert the type into a `UserIndicator` and add it to its internal queue
+    /// of other indicators.
+    ///
+    /// If the queue is empty, the indicator will be displayed immediately, otherwise it will be pending
+    /// until the previously added indicators have completed / been cancelled.
+    ///
+    /// To remove an indicator, `cancel` or deallocate the returned `UserIndicator`
+    func present(_ type: UserIndicatorType) -> UserIndicator
+    
+    /// The queue of user indicators owned by the presenter
+    ///
+    /// Clients can access the queue to add custom `UserIndicatorRequest`s
+    /// above and beyond those defined by `UserIndicatorType`
+    var queue: UserIndicatorQueue { get }
+}
+
+class UserIndicatorTypePresenter: UserIndicatorTypePresenterProtocol {
+    private let presentationContext: UserIndicatorPresentationContext
+    let queue: UserIndicatorQueue
+    
+    init(presentationContext: UserIndicatorPresentationContext) {
+        self.presentationContext = presentationContext
+        self.queue = UserIndicatorQueue()
+    }
+    
+    convenience init(presentingViewController: UIViewController) {
+        let context = StaticUserIndicatorPresentationContext(viewController: presentingViewController)
+        self.init(presentationContext: context)
+    }
+    
+    func present(_ type: UserIndicatorType) -> UserIndicator {
+        let request = userIndicatorRequest(for: type)
+        return queue.add(request)
+    }
+    
+    private func userIndicatorRequest(for type: UserIndicatorType) -> UserIndicatorRequest {
+        switch type {
+        case .loading(let label, let isInteractionBlocking):
+            if isInteractionBlocking {
+                return fullScreenLoadingRequest(label: label)
+            } else {
+                return loadingRequest(label: label)
+            }
+        case .success(let label):
+            return successRequest(label: label)
+        }
+    }
+    
+    private func loadingRequest(label: String) -> UserIndicatorRequest {
+        let presenter = ToastViewPresenter(
+            viewState: .init(
+                style: .loading,
+                label: label
+            ),
+            presentationContext: presentationContext
+        )
+        return UserIndicatorRequest(
+            presenter: presenter,
+            dismissal: .manual
+        )
+    }
+    
+    private func fullScreenLoadingRequest(label: String) -> UserIndicatorRequest {
+        let presenter = FullscreenLoadingViewPresenter(
+            label: label,
+            presentationContext: presentationContext
+        )
+        return UserIndicatorRequest(
+            presenter: presenter,
+            dismissal: .manual
+        )
+    }
+    
+    private func successRequest(label: String) -> UserIndicatorRequest {
+        let presenter = ToastViewPresenter(
+            viewState: .init(
+                style: .success,
+                label: label
+            ),
+            presentationContext: presentationContext
+        )
+        return UserIndicatorRequest(
+            presenter: presenter,
+            dismissal: .timeout(1.5)
+        )
+    }
+}

ElementX/Sources/Other/UserIndicators/UserIndicatorQueue.swift

@@ -16,11 +16,11 @@
 
 import Foundation
 
-/// A shared activity center with a single FIFO queue which will ensure only one activity is shown at a given time.
+/// A FIFO queue which will ensure only one user indicator is shown at a given time.
 ///
-/// `ActivityCenter` offers a `shared` center that can be used by any clients, but clients are also allowed
+/// `UserIndicatorQueue` offers a `shared` queue that can be used by any clients app-wide, but clients are also allowed
-/// to create local `ActivityCenter` if the context requres multiple simultaneous activities.
+/// to create local `UserIndicatorQueue` if the context requres multiple simultaneous indicators.
-public class ActivityCenter {
+public class UserIndicatorQueue {
     private class Weak<T: AnyObject> {
         weak var element: T?
         init(_ element: T) {
@@ -28,27 +28,30 @@ public class ActivityCenter {
         }
     }
     
-    public static let shared = ActivityCenter()
+    private var queue: [Weak<UserIndicator>]
-    private var queue = [Weak<Activity>]()
     
-    /// Add a new activity to the queue by providing a request.
+    public init() {
+        queue = []
+    }
+    
+    /// Add a new indicator to the queue by providing a request.
     ///
-    /// The queue will start the activity right away, if there are no currently running activities,
+    /// The queue will start the indicator right away, if there are no currently running indicators,
-    /// otherwise the activity will be put on hold.
+    /// otherwise the indicator will be put on hold.
-    public func add(_ request: ActivityRequest) -> Activity {
+    public func add(_ request: UserIndicatorRequest) -> UserIndicator {
-        let activity = Activity(request: request) { [weak self] in
+        let indicator = UserIndicator(request: request) { [weak self] in
             self?.startNextIfIdle()
         }
         
-        queue.append(Weak(activity))
+        queue.append(Weak(indicator))
         startNextIfIdle()
-        return activity
+        return indicator
     }
     
     private func startNextIfIdle() {
         cleanup()
-        if let activity = queue.first?.element, activity.state == .pending {
+        if let indicator = queue.first?.element, indicator.state == .pending {
-            activity.start()
+            indicator.start()
         }
     }
     

ElementX/Sources/Other/UserIndicators/UserIndicatorRequest.swift

@@ -16,12 +16,12 @@
 
 import Foundation
 
-/// A request used to create an underlying `Activity`, allowing clients to only specify the visual aspects of an activity.
+/// A request used to create an underlying `UserIndicator`, allowing clients to only specify the visual aspects of an indicator.
-public struct ActivityRequest {
+public struct UserIndicatorRequest {
-    internal let presenter: ActivityPresentable
+    internal let presenter: UserIndicatorViewPresentable
-    internal let dismissal: ActivityDismissal
+    internal let dismissal: UserIndicatorDismissal
     
-    public init(presenter: ActivityPresentable, dismissal: ActivityDismissal) {
+    public init(presenter: UserIndicatorViewPresentable, dismissal: UserIndicatorDismissal) {
         self.presenter = presenter
         self.dismissal = dismissal
     }

ElementX/Sources/Other/UserIndicators/UserIndicatorStore.swift

@@ -0,0 +1,63 @@
+// 
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+typealias UserIndicatorCancel = () -> Void
+
+/// An abstraction on top of `UserIndicatorTypePresenterProtocol` which manages and stores the individual user indicators.
+/// When used to present an indicator the `UserIndicatorStore` will instead returns a simple callback function to the clients
+/// letting them cancel the indicators without worrying about memory.
+@objc final class UserIndicatorStore: NSObject {
+    private let presenter: UserIndicatorTypePresenterProtocol
+    private var indicators: [UserIndicator]
+    
+    init(presenter: UserIndicatorTypePresenterProtocol) {
+        self.presenter = presenter
+        self.indicators = []
+    }
+    
+    /// Present a new type of user indicator, such as loading spinner or success message.
+    /// To remove an indicator, call the returned `UserIndicatorCancel` function
+    func present(type: UserIndicatorType) -> UserIndicatorCancel {
+        let indicator = presenter.present(type)
+        indicators.append(indicator)
+        return {
+            indicator.cancel()
+        }
+    }
+    
+    /// Present a loading indicator.
+    /// To remove the indicator call the returned `UserIndicatorCancel` function
+    ///
+    /// Note: This is a convenience function callable by objective-c code
+    @objc func presentLoading(label: String, isInteractionBlocking: Bool) -> UserIndicatorCancel {
+        present(
+            type: .loading(
+                label: label,
+                isInteractionBlocking: isInteractionBlocking
+            )
+        )
+    }
+    
+    /// Present a success message that will be automatically dismissed after a few seconds.
+    ///
+    /// Note: This is a convenience function callable by objective-c code
+    @objc func presentSuccess(label: String) {
+        let indicator = presenter.present(.success(label: label))
+        indicators.append(indicator)
+    }
+}

ElementX/Sources/Other/UserIndicators/UserIndicatorViewPresentable.swift

@@ -16,10 +16,10 @@
 
 import Foundation
 
-/// A presenter associated with and called by an `Activity`, and responsible for the underlying view shown on the screen.
+/// A presenter associated with and called by a `UserIndicator`, and responsible for the underlying view shown on the screen.
-public protocol ActivityPresentable {
+public protocol UserIndicatorViewPresentable {
-    /// Called when the `Activity` is started (manually or by the `ActivityCenter`)
+    /// Called when the `UserIndicator` is started (manually or by the `UserIndicatorQueue`)
     func present()
-    /// Called when the `Activity` is manually cancelled or completed
+    /// Called when the `UserIndicator` is manually cancelled or completed
     func dismiss()
 }

UnitTests/Sources/UserIndicators/UserIndicatorPresenterSpy.swift

@@ -0,0 +1,30 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+@testable import ElementX
+
+class UserIndicatorPresenterSpy: UserIndicatorViewPresentable {
+    var intel = [String]()
+    
+    func present() {
+        intel.append(#function)
+    }
+    
+    func dismiss() {
+        intel.append(#function)
+    }
+}

UnitTests/Sources/UserIndicators/UserIndicatorQueueTests.swift

@@ -0,0 +1,56 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+import XCTest
+@testable import ElementX
+
+class UserIndicatorQueueTests: XCTestCase {
+    var indicators: [UserIndicator]!
+    var queue: UserIndicatorQueue!
+    
+    override func setUp() {
+        indicators = []
+        queue = UserIndicatorQueue()
+    }
+    
+    func makeRequest() -> UserIndicatorRequest {
+        return UserIndicatorRequest(
+            presenter: UserIndicatorPresenterSpy(),
+            dismissal: .manual
+        )
+    }
+    
+    func testStartsIndicatorWhenAdded() {
+        let indicator = queue.add(makeRequest())
+        XCTAssertEqual(indicator.state, .executing)
+    }
+    
+    func testSecondIndicatorIsPending() {
+        queue.add(makeRequest()).store(in: &indicators)
+        let indicator = queue.add(makeRequest())
+        XCTAssertEqual(indicator.state, .pending)
+    }
+    
+    func testSecondIndicatorIsExecutingWhenFirstCompleted() {
+        let first = queue.add(makeRequest())
+        let second = queue.add(makeRequest())
+        
+        first.cancel()
+        
+        XCTAssertEqual(second.state, .executing)
+    }
+}

UnitTests/Sources/UserIndicators/UserIndicatorTests.swift

@@ -0,0 +1,128 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+import XCTest
+@testable import ElementX
+
+class UserIndicatorTests: XCTestCase {
+    var presenter: UserIndicatorPresenterSpy!
+    
+    override func setUp() {
+        super.setUp()
+        presenter = UserIndicatorPresenterSpy()
+    }
+    
+    func makeIndicator(dismissal: UserIndicatorDismissal = .manual, callback: @escaping () -> Void = {}) -> UserIndicator {
+        let request = UserIndicatorRequest(
+            presenter: presenter,
+            dismissal: dismissal
+        )
+        return UserIndicator(
+            request: request,
+            completion: callback
+        )
+    }
+    
+    // MARK: - State
+    
+    func testNewIndicatorIsPending() {
+        let indicator = makeIndicator()
+        XCTAssertEqual(indicator.state, .pending)
+    }
+    
+    func testStartedIndicatorIsExecuting() {
+        let indicator = makeIndicator()
+        indicator.start()
+        XCTAssertEqual(indicator.state, .executing)
+    }
+    
+    func testCancelledIndicatorIsCompleted() {
+        let indicator = makeIndicator()
+        indicator.cancel()
+        XCTAssertEqual(indicator.state, .completed)
+    }
+    
+    // MARK: - Presenter
+    
+    func testStartingIndicatorPresentsUI() {
+        let indicator = makeIndicator()
+        indicator.start()
+        XCTAssertEqual(presenter.intel, ["present()"])
+    }
+    
+    func testAllowStartingOnlyOnce() {
+        let indicator = makeIndicator()
+        indicator.start()
+        presenter.intel = []
+        
+        indicator.start()
+        
+        XCTAssertEqual(presenter.intel, [])
+    }
+    
+    func testCancellingIndicatorDismissesUI() {
+        let indicator = makeIndicator()
+        indicator.start()
+        presenter.intel = []
+        
+        indicator.cancel()
+        
+        XCTAssertEqual(presenter.intel, ["dismiss()"])
+    }
+    
+    func testAllowCancellingOnlyOnce() {
+        let indicator = makeIndicator()
+        indicator.start()
+        indicator.cancel()
+        presenter.intel = []
+        
+        indicator.cancel()
+        
+        XCTAssertEqual(presenter.intel, [])
+    }
+    
+    // MARK: - Dismissal
+    
+    func testDismissAfterTimeout() {
+        let interval: TimeInterval = 0.01
+        let indicator = makeIndicator(dismissal: .timeout(interval))
+        
+        indicator.start()
+        
+        let exp = expectation(description: "")
+        DispatchQueue.main.asyncAfter(deadline: .now() + interval) {
+            exp.fulfill()
+        }
+        waitForExpectations(timeout: 1)
+        
+        XCTAssertEqual(indicator.state, .completed)
+    }
+    
+    // MARK: - Completion callback
+    
+    func testTriggersCallbackWhenCompleted() {
+        var didComplete = false
+        let indicator = makeIndicator {
+            didComplete = true
+        }
+        indicator.start()
+        
+        indicator.cancel()
+        
+        XCTAssertTrue(didComplete)
+    }
+}