200 lines
8.1 KiB
QML
200 lines
8.1 KiB
QML
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import QtQml 2.15
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import StatusQ 0.1
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import StatusQ.Models 0.1
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import StatusQ.Core.Utils 0.1
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import utils 1.0
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import SortFilterProxyModel 0.2
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QObject {
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id: root
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// Controller providing information about visibility and order defined
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// by a user (token management)
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required property ManageTokensController controller
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property bool showCommunityAssets: false
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property string assetSearchString: ""
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/**
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Expected model structure:
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Tokens related part:
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tokensKey [string] - unique identifier of a token, e.g "0x3234235"
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symbol [string] - token's symbol e.g. "ETH" or "SNT"
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name [string] - token's name e.g. "Ether" or "Dai"
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image [url] - token's icon for custom tokens
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decimals [int] - number of decimal places, e.g. 18 for ETH
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balances [model] - submodel of balances per chain/account
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chainId [string] - unique identifier of a chain
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account [string] - unique identifier of an account
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balance [string] - balance in basic unit as big integer string
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marketDetails [object] - object holding market details
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changePct24hour [double] - percentage change of fiat price in last day
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currencyPrice [object] - object holding fiat price details
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amount [double] - fiat prace of 1 logical unit of cryptocurrency
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detailsLoading [bool] - indicatator if market details are ready to use
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addressPerChain [model] - submodel of addresses per chain
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chainId [string] - unique identifier of a chain
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address [string] - address of a token contract
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Community related part (relevant for community minted assets, empty otherwise):
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communityId [string] - unique identifier of a community, e.g. "0x6734235"
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**/
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property var tokensModel
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// function formatting tokens balance expressed in a commonly used units,
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// e.g. 1.2 for 1.2 ETH, according to rules specific for given symbol
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property var formatBalance:
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(balance, symbol) => `${balance.toLocaleString(Qt.locale())} ${symbol}`
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// account used for balance calculation
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property string account: ""
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// threshold below which the token is omitted from the output model
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property double marketValueThreshold
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/**
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Model structure:
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All roles from the source model are passed directly to the output model,
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additionally:
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key [string] - renamed from tokensKey
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icon [url] - from image or fetched by symbol for well-known tokens
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currentbalance [double] - tokens balance is the commonly used unit, e.g. 1.2 for 1.2 ETH,
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computed from balances according to provided criteria
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currentBalanceText [string] - formatted and localized balance
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currentCurrencyBalance [double] - tokens fiat balance computed from balance and market price
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marketDetailsAvailable [bool] - specifies if market datails are available for given token
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marketDetailsLoading [bool] - specifies if market datails are available for given token
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marketPrice [double] - specifies market price in currently used currency
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marketChangePct24hour [double] - percentage price change in last 24 hours, e.g. 0.5 for 0.5% of price change
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balancesModel [model] - filtered balances model by selected account
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**/
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readonly property alias model: sfpm
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ObjectProxyModel {
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id: proxyModel
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sourceModel: root.tokensModel ?? null
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delegate: QObject {
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readonly property var rootModel: model
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readonly property bool isCommunityAsset: !!model.communityId
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readonly property var marketDetails: model.marketDetails
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// Read-only roles exposed to the model:
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readonly property string key: model.tokensKey
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readonly property double currentBalance: AmountsArithmetic.toNumber(totalBalanceAggregator.value, model.decimals)
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readonly property double currentCurrencyBalance: currentBalance * marketPrice
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readonly property string currentBalanceText: root.formatBalance(currentBalance, model.symbol)
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readonly property bool marketDetailsAvailable: !isCommunityAsset
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readonly property bool marketDetailsLoading: model.detailsLoading
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readonly property real marketPrice: marketDetails.currencyPrice.amount ?? 0
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readonly property real marketChangePct24hour: marketDetails.changePct24hour ?? 0
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readonly property bool visible: {
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root.controller.revision
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if (!root.controller.filterAcceptsSymbol(model.symbol))
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return false
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if (isCommunityAsset) {
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return root.showCommunityAssets
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}
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return currentCurrencyBalance >= root.marketValueThreshold
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}
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readonly property url icon: !!model.image ? model.image : Constants.tokenIcon(model.symbol, false)
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readonly property var balancesModel: filteredBalances
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SortFilterProxyModel {
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id: filteredBalances
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sourceModel: rootModel.balances
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filters: [
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FastExpressionFilter {
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expression: root.account === model.account
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expectedRoles: ["account"]
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}
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]
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}
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FunctionAggregator {
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id: totalBalanceAggregator
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model: filteredBalances
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initialValue: "0"
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roleName: "balance"
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aggregateFunction: (aggr, value) => AmountsArithmetic.sum(
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AmountsArithmetic.fromString(aggr),
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AmountsArithmetic.fromString(value)).toString()
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}
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}
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expectedRoles:
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["tokensKey", "symbol", "image", "balances", "decimals",
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"detailsLoading", "marketDetails", "communityId", "addressPerChain"]
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exposedRoles:
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["key", "error", "currentBalance", "currentCurrencyBalance", "currentBalanceText",
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"icon", "visible", "marketDetailsAvailable", "marketDetailsLoading",
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"marketPrice", "marketChangePct24hour", "isCommunityAsset", "balancesModel"]
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/* Internal function to search token address */
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function __searchAddressInList(addressPerChain, searchString) {
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const uppercaseSearchString = searchString.toUpperCase()
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let addressFound = false
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let tokenAddresses = ModelUtils.modelToFlatArray(addressPerChain, "address")
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for (let i =0; i< tokenAddresses.length; i++){
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if(tokenAddresses[i].toUpperCase().startsWith(uppercaseSearchString)) {
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addressFound = true
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break;
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}
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}
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return addressFound
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}
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}
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SortFilterProxyModel {
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id: sfpm
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sourceModel: proxyModel
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objectName: "SendModalAssetsAdaptorModel"
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filters: [
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FastExpressionFilter {
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function search(symbol, name, addressPerChain, searchString) {
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const uppercaseSearchString = searchString.toUpperCase()
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return (
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symbol.toUpperCase().startsWith(uppercaseSearchString) ||
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name.toUpperCase().startsWith(uppercaseSearchString) || proxyModel.__searchAddressInList(addressPerChain, searchString)
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)
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}
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expression: search(symbol, name, addressPerChain, root.assetSearchString)
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expectedRoles: ["symbol", "name", "addressPerChain"]
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},
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ValueFilter {
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roleName: "visible"
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value: true
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}
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]
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sorters: RoleSorter {
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roleName: "isCommunityAsset"
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}
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}
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}
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