feat: load installed stickers while offline

When the network connection is changed, the sticker packs are cleared and then re-loaded (either loading the offline (installed) sticker packs, or all the sticker packs from the network).

Stickers can be sent while offline, though the sticker images do not load once offline (this is likely a side effect of the bug described below).

There is a known bug in QNetworkAccessManager (https://bugreports.qt.io/browse/QTBUG-55180) that was re-introduced in 5.14.1 that does not allow us to download resources if we go offline then come back online. The workaround employed in this PR manually sets the NetworkAccessible property of QNetworkAccessManager once we have been connected back online. The NetworkAccessible property is marked as obsolete and will be removed in Qt6, so it is something that we need to be aware of when we upgrade. However the hope is that the bug has been fixed.

Close StickersPopup when disconnected from network (so that re-loading of sticker packs doesn't look out of place).

fix: set network status correctly at load

feat: stickers gas estimate async

feat: When network re-connected, any http images that were not properly loaded in an ImageLoader component will automatically be reloaded.

fix: Sticker button loading icon

chore: Bump nimqml and dotherside

NOTE: This PR uses an updated nimqml and dotherside. The respective changes should be merged first, and the commit hash should be bumped in this PR prior to merging. Relevant PRs:

[https://github.com/status-im/dotherside/pull/20](https://github.com/status-im/dotherside/pull/20)

[https://github.com/status-im/nimqml/pull/17](https://github.com/status-im/nimqml/pull/17)

src/app/chat/core.nim

@@ -47,4 +47,16 @@ proc init*(self: ChatController) =
   for sticker in recentStickers:
     self.view.stickers.addRecentStickerToList(sticker)
     self.status.stickers.addStickerToRecent(sticker)
+  
+  if self.status.network.isConnected:
+    self.view.stickers.obtainAvailableStickerPacks()
+  else:
+    self.view.stickers.populateOfflineStickerPacks()
+
+  self.status.events.on("network:disconnected") do(e: Args):
+    self.view.stickers.clearStickerPacks()
+    self.view.stickers.populateOfflineStickerPacks()
+
+  self.status.events.on("network:connected") do(e: Args):
+    self.view.stickers.clearStickerPacks()
     self.view.stickers.obtainAvailableStickerPacks()

src/app/chat/event_handling.nim

@@ -74,10 +74,10 @@ proc handleChatEvents(self: ChatController) =
     var msg = MessageSentArgs(e)
     self.view.markMessageAsSent(msg.chatId, msg.id)
 
-  self.status.events.on("chat:disconnected") do(e: Args):
+  self.status.events.on("network:disconnected") do(e: Args):
     self.view.setConnected(false)
 
-  self.status.events.on("chat:connected") do(e: Args):
+  self.status.events.on("network:connected") do(e: Args):
     self.view.setConnected(true)
 
   self.status.events.on(PendingTransactionType.BuyStickerPack.confirmed) do(e: Args):

src/app/chat/view.nim

@@ -459,7 +459,7 @@ QtObject:
     self.ensWasResolved(pubKey)
 
   proc isConnected*(self: ChatsView): bool {.slot.} =
-    result = self.connected
+    result = self.status.network.isConnected
 
   proc onlineStatusChanged(self: ChatsView, connected: bool) {.signal.}
 

src/app/chat/views/sticker_pack_list.nim

@@ -27,6 +27,11 @@ QtObject:
 
   proc delete(self: StickerPackList) = self.QAbstractListModel.delete
 
+  proc clear*(self: StickerPackList) =
+    self.beginResetModel()
+    self.packs = @[]
+    self.endResetModel()
+
   proc newStickerPackList*(): StickerPackList =
     new(result, delete)
     result.packs = @[]

src/app/chat/views/stickers.nim

@@ -44,11 +44,21 @@ QtObject:
   
   proc transactionCompleted*(self: StickersView, success: bool, txHash: string, revertReason: string = "") {.signal.}
 
-  proc estimate*(self: StickersView, packId: int, address: string, price: string): int {.slot.} =
+  proc estimate*(self: StickersView, packId: int, address: string, price: string, uuid: string) {.slot.} =
+    let status_stickers = self.status.stickers
+    spawnAndSend(self, "setGasEstimate") do:
       var success: bool
-    result = self.status.stickers.estimateGas(packId, address, price, success)
+      var estimate = status_stickers.estimateGas(packId, address, price, success)
       if not success:
-      result = 325000
+        estimate = 325000
+      let result: tuple[estimate: int, uuid: string] = (estimate, uuid)
+      Json.encode(result)
+  
+  proc gasEstimateReturned*(self: StickersView, estimate: int, uuid: string) {.signal.}
+
+  proc setGasEstimate*(self: StickersView, estimateJson: string) {.slot.} =
+    let estimateResult = Json.decode(estimateJson, tuple[estimate: int, uuid: string])
+    self.gasEstimateReturned(estimateResult.estimate, estimateResult.uuid)
 
   proc buy*(self: StickersView, packId: int, address: string, price: string, gas: string, gasPrice: string, password: string): string {.slot.} =
     var success: bool
@@ -74,6 +84,14 @@ QtObject:
 
   proc recentStickersUpdated*(self: StickersView) {.signal.}
 
+  proc clearStickerPacks*(self: StickersView) =
+    self.stickerPacks.clear()
+
+  proc populateOfflineStickerPacks*(self: StickersView) =
+    let installedStickerPacks = self.status.stickers.getInstalledStickerPacks()
+    for stickerPack in installedStickerPacks.values:
+      self.addStickerPackToList(stickerPack, isInstalled = true, isBought = true, isPending = false)
+
   proc setAvailableStickerPacks*(self: StickersView, availableStickersJSON: string) {.slot.} =
     let
       accounts = status_wallet.getWalletAccounts() # TODO: make generic

src/app/node/core.nim

@@ -12,12 +12,14 @@ type NodeController* = ref object
   status*: Status
   view*: NodeView
   variant*: QVariant
+  networkAccessMananger*: QNetworkAccessManager
 
-proc newController*(status: Status): NodeController =
+proc newController*(status: Status, nam: QNetworkAccessManager): NodeController =
   result = NodeController()
   result.status = status
   result.view = newNodeView(status)
   result.variant = newQVariant(result.view)
+  result.networkAccessMananger = nam
 
 proc delete*(self: NodeController) =
   delete self.variant

src/app/utilsView/core.nim

@@ -3,6 +3,7 @@ import ../../status/signals/types
 import ../../status/[status, node, network]
 import ../../status/libstatus/types as status_types
 import view
+import ../../eventemitter
 
 logScope:
   topics = "utils"

src/nim_status_client.nim

@@ -67,8 +67,23 @@ proc mainProc() =
     i18nPath = joinPath(getAppDir(), "../i18n")
 
   let networkAccessFactory = newQNetworkAccessManagerFactory(TMPDIR & "netcache")
+
   let engine = newQQmlApplicationEngine()
   engine.setNetworkAccessManagerFactory(networkAccessFactory)
+
+  let netAccMgr = newQNetworkAccessManager(engine.getNetworkAccessManager())
+
+  status.events.on("network:connected") do(e: Args):
+    # This is a workaround for Qt bug https://bugreports.qt.io/browse/QTBUG-55180
+    # that was apparently reintroduced in 5.14.1 Unfortunately, the only workaround
+    # that could be found uses obsolete properties and methods
+    # (https://doc.qt.io/qt-5/qnetworkaccessmanager-obsolete.html), so this will
+    # need to be something we keep in mind when upgrading to Qt 6.
+    # The workaround is to manually set the NetworkAccessible property of the
+    # QNetworkAccessManager once peers have dropped (network connection is lost).
+    netAccMgr.clearConnectionCache()
+    netAccMgr.setNetworkAccessible(NetworkAccessibility.Accessible)
+
   let signalController = signals.newController(status)
 
   # We need this global variable in order to be able to access the application
@@ -81,7 +96,7 @@ proc mainProc() =
   var chat = chat.newController(status)
   engine.setRootContextProperty("chatsModel", chat.variant)
 
-  var node = node.newController(status)
+  var node = node.newController(status, netAccMgr)
   engine.setRootContextProperty("nodeModel", node.variant)
 
   var utilsController = utilsView.newController(status)

src/status/network.nim

@@ -8,19 +8,25 @@ type
   NetworkModel* = ref object
     peers*: seq[string]
     events*: EventEmitter
+    connected*: bool
 
 proc newNetworkModel*(events: EventEmitter): NetworkModel =
   result = NetworkModel()
   result.events = events
   result.peers = @[]
+  result.connected = false
 
 proc peerSummaryChange*(self: NetworkModel, peers: seq[string]) =
-  if peers.len == 0:
+  if peers.len == 0 and self.connected:
-    self.events.emit("chat:disconnected", Args())
+    self.connected = false
+    self.events.emit("network:disconnected", Args())
   
-  if peers.len > 0:
+  if peers.len > 0 and not self.connected:
-    self.events.emit("chat:connected", Args())
+      self.connected = true
+      self.events.emit("network:connected", Args())
 
   self.peers = peers
 
 proc peerCount*(self: NetworkModel): int = self.peers.len
+
+proc isConnected*(self: NetworkModel): bool = self.connected

src/status/stickers.nim

@@ -58,10 +58,11 @@ proc estimateGas*(self: StickersModel, packId: int, address: string, price: stri
     tx = self.buildTransaction(
       packId.u256,
       parseAddress(address),
-      eth2Wei(parseFloat(price), 18), # SNT
+      eth2Wei(parseFloat(price), sntContract.decimals),
       approveAndCall,
       sntContract
     )
+
   let response = sntContract.methods["approveAndCall"].estimateGas(tx, approveAndCall, success)
   if success:
     result = fromHex[int](response)

src/status/wallet.nim

@@ -99,7 +99,9 @@ proc confirmTransactionStatus(self: WalletModel, pendingTransactions: JsonNode,
       self.events.emit(parseEnum[PendingTransactionType](trx["type"].getStr).confirmed, ev)
 
 proc checkPendingTransactions*(self: WalletModel) =
-  let latestBlock = parseInt($fromHex(Stuint[256], getBlockByNumber("latest").parseJson()["result"]["number"].getStr))
+  let response = getBlockByNumber("latest").parseJson()
+  if response.hasKey("result"):
+    let latestBlock = parseInt($fromHex(Stuint[256], response["result"]["number"].getStr))
     self.confirmTransactionStatus(status_wallet.getPendingTransactions().parseJson["result"], latestBlock)
 
 proc checkPendingTransactions*(self: WalletModel, address: string, blockNumber: int) =

ui/shared/GasSelector.qml

@@ -27,6 +27,7 @@ Item {
     //% "Please enter an amount"
     property string noInputErrorMessage: qsTrId("please-enter-an-amount")
     property bool isValid: true
+    readonly property string uuid: Utils.uuid()
 
     function defaultGasPrice() {
         return ((50 * (root.fastestGasPrice - root.slowestGasPrice) / 100) + root.slowestGasPrice)

ui/shared/ImageLoader.qml

@@ -69,13 +69,29 @@ Rectangle {
         }
     ]
 
+    Connections {
+        target: chatsModel
+        onOnlineStatusChanged: {
+            if (connected && root.state !== "ready" &&
+                root.visible &&
+                root.source &&
+                root.source.startsWith("http")) {
+                root.reload()
+            }
+        }
+    }
+
     function reload() {
         // From the documentation (https://doc.qt.io/qt-5/qml-qtquick-image.html#sourceSize-prop)
         // Note: Changing this property dynamically causes the image source to 
         // be reloaded, potentially even from the network, if it is not in the 
         // disk cache.
+        const oldSource = image.source
+        image.cache = false
         image.sourceSize.width += 1
         image.sourceSize.width -= 1
+        image.cache = true
+
     }
 
     Component {

ui/shared/status/StatusStickerButton.qml

@@ -99,7 +99,7 @@ Item {
                 bgColor: root.style === StatusStickerButton.StyleType.Default ? Style.current.darkGrey : Style.current.grey;
                 enabled: false;
                 icon: new Object({
-                    path: "../../../img/loading.png",
+                    path: "../../app/img/loading.png",
                     rotation: 0,
                     runAnimation: true
                 })

ui/shared/status/StatusStickerPackPurchaseModal.qml

@@ -99,9 +99,17 @@ ModalPopup {
                         selectedGasLimit = 325000
                         return
                     }
-                    selectedGasLimit = chatsModel.stickers.estimate(root.stickerPackId, selectFromAccount.selectedAccount.address, root.packPrice)
+                    chatsModel.stickers.estimate(root.stickerPackId, selectFromAccount.selectedAccount.address, root.packPrice, uuid)
                 })
             }
+            Connections {
+                target: chatsModel.stickers
+                onGasEstimateReturned: {
+                    if (uuid === gasSelector.uuid) {
+                        gasSelector.selectedGasLimit = estimate
+                    }
+                }
+            }
             GasValidator {
                 id: gasValidator
                 anchors.bottom: parent.bottom

ui/shared/status/StatusStickersPopup.qml

@@ -37,6 +37,12 @@ Popup {
         footerContent.visible = true
         stickersContainer.visible = true
     }
+    Connections {
+        target: chatsModel
+        onOnlineStatusChanged: {
+            root.close()
+        }
+    }
     contentItem: ColumnLayout {
         anchors.fill: parent
         spacing: 0

vendor/DOtherSide

@@ -1 +1 @@
-Subproject commit 5012620a2ffbd9ac5c2b7c53671886d54c91a408
+Subproject commit 1cc16aaa5c643d0d33c31f9953fbe4a9f6bde151

vendor/nimqml

@@ -1 +1 @@
-Subproject commit 953e9f4b38478c835b9152103192220c49fc4128
+Subproject commit 29fca3ce2ed2c9bc0c99163bc2c199b6ed101dd6